Lawn mower with mulcher 2023: Get a lawn mower with a bag for healthier grass…
US4189904A. Leaf mulcher attachment for lawn mowers. Google Patents
Publication number US4189904A US4189904A US05/690,398 US69039876A US4189904A US 4189904 A US4189904 A US 4189904A US 69039876 A US69039876 A US 69039876A US 4189904 A US4189904 A US 4189904A Authority US United States Prior art keywords plate tines housing lawn mower cutting blade Prior art date 1976-05-27 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired. Lifetime Application number US05/690,398 Inventor Alexander D. Paker Original Assignee Paker Alexander D Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 1976-05-27 Filing date 1976-05-27 Publication date 1980-02-26 1976-05-27 Application filed by Paker Alexander D filed Critical Paker Alexander D 1976-05-27 Priority to US05/690,398 priority Critical patent/US4189904A/en 1980-02-26 Application granted granted Critical 1980-02-26 Publication of US4189904A publication Critical patent/US4189904A/en 1997-02-26 Anticipated expiration legal-status Critical Status Expired. Lifetime legal-status Critical Current
Links
- 240000000218 Cannabis sativa Species 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000000789 fastener Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims 2
- 239000002362 mulch Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000004075 alteration Effects 0.000 description 2
- 230000000903 blocking Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
Images
Classifications
- A — HUMAN NECESSITIES
- A01 — AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D — HARVESTING; MOWING
- A01D42/00 — Mowers convertible to apparatus for purposes other than mowing; Mowers capable of performing operations other than mowing
- A01D42/005 — Mulching
- A — HUMAN NECESSITIES
- A01 — AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D — HARVESTING; MOWING
- A01D2101/00 — Lawn-mowers
Abstract
A leaf mulching attachment is provided for connection to a conventional lawn mower. The attachment comprises a plate having inwardly extending tines and defining openings, with the plate being adapted for positioning in front of the grass ejection chute. The plate is connected to the housing of the lawn mower in a manner in which the plate and tines avoid contact with the normal grass cutting blade of the lawn mower, permitting the lawn mower to be used for cutting grass and mulching leaves without changing the cutting blade.
Description
There are certain prior art leaf mulching systems which have various disadvantages. For example, Shaw U.S. Pat. No. 2,791,080 and Gary U.S. Pat. No. 3,134,212 disclose the use of screens in a rotary type lawn mower. These screens may clog, however, and are relatively difficult to install. Other systems, such as disclosed in Davis, et al. U.S. Pat. No. 2,836,024 and Miller, et al. U.S. Pat. No. 2,659,191 comprise complete leaf mulching systems which are integral with and are purchased with the lawn mower. Thus Davis, et al. and Miller, et al. do not disclose a type of system that is adaptable for use with a conventional lawn mower.
The U.S. Pat. to Gary, No. 3,242,660, discloses a leaf mulching attachment for lawn mowers, but the leaf mulching attachment disclosed therein also requires the use of a special leaf mulching blade substituted for the lawn cutting blade. In effect, the leaf mulching attachment disclosed in Gary U.S. Pat. No. 3,242,660 comprises a new cylindrical housing for the lawn mower, together with a new leaf mulching blade, both of which combine to form a relatively expensive system which is unable to handle grass cutting once installed. A combination lawn mowing and leaf mulching apparatus is disclosed in Pursel U.S. Pat. No. 3,797,212, but this apparatus is not adapted to fit conventional mowers and is relatively complicated. Further, a branch may jam the Purcel apparatus and damage the lawn mower blade.
It is, therefore, an object of the present invention to provide a leaf mulching apparatus which can be connected to conventional lawn mowers.
A further object of the present invention is to provide a leaf mulching attachment which is simple in construction, reliable in operation and easy to attach to conventional lawn mowers.
A still further object of the present invention is to provide a leaf mulching apparatus which can be attached to a conventional lawn mower and permits the normal lawn mowing blade to be used, in a manner whereby the device can be a combination lawn mower and leaf mulcher without requiring further alterations.
Another object of the present invention is to provide an attachment for a lawn mower which permits the lawn mower to both mow and mulch simultaneously.
Other objects and advantages of the present invention will become apparent as the description proceeds.
In accordance with the present invention, a leaf mulching attachment is provided for use with a conventional lawn mower. The attachment comprises a plate adapted for connection to the interior of the lawn mower’s housing, with the plate having a size that is sufficient to cover a substantial portion of the lawn mower’s grass ejection chute opening. A plurality of tines extend from the plate inwardly toward the axis of the lawn mower housing, and the plate defines a plurality of openings. Means are provided for connecting the plate to the lawn mower housing whereby the plate and tines avoid contact with the grass cutting blade.
In the illustrative embodiment, the tines are struck from the plate and extend inwardly and downwardly and overlie a portion of the openings from which the tines are struck. The connecting means comprises apertures for receiving threaded fasteners to connect the plate to the lawn mower housing.
A more detailed explanation of the invention is provided in the following description and claims, and is illustrated in the accompanying drawings.
FIG. 1 is a bottom plan view of a lawn mower having connected to it a leaf mulching attachment constructed in accordance with the principles of the present invention;
FIG. 2 is an elevational view thereof, taken partially in section to show clearly the leaf mulching attachment connected to the lawn mower housing;
FIG. 3 is a front view of a leaf mulching attachment constructed in accordance with the principles of the present invention;
Referring to FIGS. 1 and 2 in particular, a lawn mower 10 is shown therein having a housing 12 of generally circular cross-sectional configuration and a frame 14 supporting four wheels 16, in the conventional manner. A conventional lawn mower engine 18 is provided to drive a lawn mower blade 20 via shaft 22. Housing 12 defines a grass ejection chute 24 and frame 14 has a handle 26 connected thereto, all as is conventional in the art.
Now referring to all of the Figures, the leaf mulching attachment of the present invention comprises a plate 30, preferably formed of planar sheet steel defining circular openings 32, which circular openings are equally spaced in a lineal arrangement along plate 30. A number of tines 34 are struck from the plate and extend inwardly and downwardly to overlie a portion of the openings 36 from which the tines 34 are struck. A pair of oppositely positioned apertures 38 are defined by the plate 30, and are adapted for receiving threaded fasteners 40 for attaching plate 30 to the housing 12 of the lawn mower.
As shown most clearly in FIG. 5, each tine 34 has an inwardly extending portion 42 which extends inwardly at an approximately 20° angle with the horizontal and a downwardly extending portion 44 which extends substantially vertically downwardly.
Plate 30 is attached to a conventional lawn mower as follows. The gasoline is first drained from the lawn mower or the lawn mower is run to use up the gasoline. The spark plug wire is then removed. The lawn mower is then placed on its side with the exit chute upwardly, as illustrated in FIG. 1. Plate 30 is then bent to a curvilinear shape, to match the circumferential arc of the blade travel, as illustrated in FIGS. 1 and 4. The plate is positioned so that tines 34 extend inwardly towards the shaft 22 and in a downward direction (when the lawn mower is in its normal, standing position).
Apertures are drilled in the housing 12, using openings 38 as a template, to enable plate 30 to be connected to the housing and located in front of the opening of chute 24, as shown in FIG. 1. The horizontal plane of bottom 46 of each tine 34 should be above the highest horizontal plane of blade 20, preferably by approximately one-quarter inch, and the circumference of blade 20 should be spaced from portions 44 of tines 34 by approximately one-half inch. It is to be understood that these dimensions are specific examples which provide satisfactory operation, but no limitation with respect to such dimensions is intended or should be implied.
Further, other specific examples of dimensions which provide a satisfactory unit, it being understood that no limitations are intended, are as follows. The length of plate 30 is preferably 18 inches and its width is four inches. In the illustrative embodiment, eleven tines 36 are provided, and are spaced 1.55 inches from each other, with portion 42 extending one-half inch from plate 30 and opening 36 being one and one-half inches in length. Tines 34 and opening 36 are preferably one-half inch in width. Apertures 32 are preferably spaced 1.55 inches apart and have a 3/8 inch diameter.
The leaf mulching attachment of the present invention effectively blocks the ejection chute and includes tines for mulching leaves and holes for filtering and air draft purposes. The plate is dimensioned so that the conventional lawn mower and lawn mower blade can be used while plate 30 is attached and the device can simultaneously mow and mulch.
The leaf mulching attachment of the present invention is effective to divert the normal flow of leaves so that the blade 20 can have more than one pass at the leaves. The tines 34 operate to mulch the leaves as the leaves are forced past them by the lifting force and natural ejection force of the mower housing. A secondary mulching effect is achieved by the leaves being forced through the openings 32 and 36, providing a combined action of the chute blocking plate 30 with the tines 34 and openings 32, 36 forcing the multiple blade action.
The leaf mulching attachment of the present invention can easily be connected to a conventional lawn mower, or multiblade riding mowers, is extremely simple in construction and can be made from a metal sheet, such as steel, or can be made of a molded material. The conventional lawn mower, with the plate 30 attached thereto, can mow and mulch simultaneously and the system is effective to mulch the leaves finely and distribute the leaves over the lawn surface in a manner to naturally fertilize the lawn.
Although an illustrative embodiment of the invention has been shown and described, it is to be understood that various modifications and substitutions may be made by those skilled in the art without departing from the novel spirit and scope of the present invention.
Claims ( 6 )
A leaf mulching attachment for use with a lawn mower of the type having a housing, a rotating grass cutting blade located within the housing and a grass ejection chute opening defined by the housing, the improvement comprising: a plate adapted for connection to the interior of said housing, said plate having a size that is sufficient to cover a substantial portion of said chute opening, a plurality of tines struck from said plate and extending from said plate inwardly toward said axis, said tines extending inwardly and downwardly and overlying a portion of the openings from which said tines are struck; said tines being located on said plate in a position adapted to lie in a horizontal plane above the highest horizontal plane of the grass cutting blade; said plate defining a plurality of openings; and means for connecting said plate to said housing whereby said plate and tines avoid contact with said grass cutting blade, said connecting means comprising apertures for receiving threaded fasteners.
A leaf mulching attachment for a lawn mower, which comprises: a plate defining a plurality of openings and a plurality of tines, said plate comprising a sheet adapted for positioning in front of the chute opening of the lawn mower, said plate being dimensioned for connection to the lawn mower housing without requiring removal of the lawn cutting blade normally carried by the lawn mower; and a plurality of tines extending inwardly and downwardly from the plate with each tine overlying at least a portion of an opening; and means for connecting said plate to the lawn mower and permitting said plate to avoid contact with said lawn cutting blade.
A leaf mulching attachment as described in claim 2, wherein said plate comprises a steel planar sheet adapted for curvilinear bending when connected to the housing of the lawn mower.
A leaf mulching attachment as described in claim 2, wherein said tines are struck from said plate and overlie a portion of the openings from which said tines are struck.
A leaf mulching attachment as described in claim 2, wherein said tines are located on said plate in a position adapted to lie in a horizontal plane above the highest horizontal plane of the grass cutting blade.
A leaf mulching attachment for use with a rotary lawn mower having a housing, a rotating grass cutting blade located within the housing and a grass ejection chute opening defined by the housing, the improvement comprising: a plate adapted for connection to the interior of said housing, said plate having a size that is sufficient to cover a substantial portion of said chute opening; a plurality of tines extending inwardly and downwardly from said plate; said plate defining a plurality of openings; and means for connecting said plate to said housing whereby said plate and tines avoid contact with said grass cutting blade; said tines being struck from said plate and overlying a portion of the openings from which said tines are struck.
US05/690,398 1976-05-27 1976-05-27 Leaf mulcher attachment for lawn mowers Expired. Lifetime US4189904A ( en )
Priority Applications (1)
| US05/690,398 US4189904A ( en ) | 1976-05-27 | 1976-05-27 | Leaf mulcher attachment for lawn mowers |
Applications Claiming Priority (1)
| US05/690,398 US4189904A ( en ) | 1976-05-27 | 1976-05-27 | Leaf mulcher attachment for lawn mowers |
Family Applications (1)
| US05/690,398 Expired. Lifetime US4189904A ( en ) | 1976-05-27 | 1976-05-27 | Leaf mulcher attachment for lawn mowers |
Cited By (25)
| US4864808A ( en ) | 1989-01-27 | 1989-09-12 | Weber John H | Leaf and grass mulching attachment for lawn mowers |
| US4938011A ( en ) | 1989-02-13 | 1990-07-03 | Pernia Nicholas L | Lawn mower attachment for shredding and pulverizing |
| US4967546A ( en ) | 1989-10-30 | 1990-11-06 | Edward Forbush | Mulching attachment for lawn mower |
| US5048279A ( en ) | 1990-02-07 | 1991-09-17 | Badawey George W | Leaf mulcher for use with a rotary blade power lawnmower |
| US5103624A ( en ) | 1991-01-03 | 1992-04-14 | Marshall James W | Method and means for sweeping stalks from furrows onto ridges and shredding same |
| US5129217A ( en ) | 1991-02-14 | 1992-07-14 | Ransomes, Inc. | Multiblade mulching mower |
| US5189868A ( en ) | 1992-03-23 | 1993-03-02 | Jerry Hill | Leaf mulcher |
| US5191756A ( en ) | 1991-02-04 | 1993-03-09 | Deere Company | Mulching mower apparatus |
| US5267429A ( en ) | 1992-07-21 | 1993-12-07 | Deere Company | Rear discharge mulching apparatus |
| US5284007A ( en ) | 1993-02-04 | 1994-02-08 | Poe William R | Lawn mower mounted leaf mulcher |
| US5305589A ( en ) | 1992-05-26 | 1994-04-26 | C. Robert Christy | Mulching deck |
| US5325657A ( en ) | 1992-07-30 | 1994-07-05 | Bevis Russell R | Debris guiding device for a lawn mower |
| US5337545A ( en ) | 1993-04-15 | 1994-08-16 | Butler Walt R | Mulch plate |
| US5373687A ( en ) | 1993-12-01 | 1994-12-20 | Secord; Walter J. J. | Mulching blade |
| US20030217540A1 ( en ) | 2002-05-23 | 2003-11-27 | Honda Giken Kogyo Kabushiki Kaisha | Variable mulching system for a lawnmower |
| US20040194443A1 ( en ) | 2002-05-23 | 2004-10-07 | Honda Giken Kogyo Kabushiki Kaisha | Variable mulching system for a lawnmower |
| US6862874B2 ( en ) | 2002-04-22 | 2005-03-08 | Deere Company | Discharge stopper units for mower decks |
| US6874309B1 ( en ) | 2002-04-04 | 2005-04-05 | William B. Bellis, Jr. | Discharge baffle for lawnmower |
| US20050091956A1 ( en ) | 2003-11-03 | 2005-05-05 | Benway Randy E. | Interchangeable mulching/discharge mowing deck |
| US20050126152A1 ( en ) | 2003-11-13 | 2005-06-16 | Scag Power Equipment. Inc. | Lawnmower having mulching cutter deck assembly |
| US7024847B2 ( en ) | 2002-05-31 | 2006-04-11 | Honda Motor Co., Ltd. | Mower deck |
| US20070130899A1 ( en ) | 2004-06-17 | 2007-06-14 | Osborne Christopher M | Apparatus and method for controlling self-propelled machines |
| US20070261380A1 ( en ) | 2006-05-10 | 2007-11-15 | Danny Bledsoe | Mower discharge door |
| EP1869967A2 ( en ) | 2002-02-01 | 2007-12-26 | The Toro Company | Rotary cutting deck with mulching and discharge/collection modes |
| US7526909B1 ( en ) | 2008-04-14 | 2009-05-05 | Allen Procter | Quickly installable mulch-type accessory for a walk-behind or riding mower |
Patent Citations (5)
| US2659191A ( en ) | 1951-02-16 | 1953-11-17 | Toro Mfg Corp | Combined grass mower and leaf mulcher |
| US2983096A ( en ) | 1954-10-08 | 1961-05-09 | William H Phelps | Rotary cutter and housing structure |
| US2836024A ( en ) | 1956-08-24 | 1958-05-27 | Mcculloch Motors Corp | Mulching lawnmower |
| US3242660A ( en ) | 1964-04-07 | 1966-03-29 | Ira J Gary | Cutter blade and screen for lawn mower mulching attachment |
| US3531923A ( en ) | 1968-07-19 | 1970-10-06 | Manford S De Lay | Combination mower and mulcher |
Cited By (38)
| US4864808A ( en ) | 1989-01-27 | 1989-09-12 | Weber John H | Leaf and grass mulching attachment for lawn mowers |
| US4938011A ( en ) | 1989-02-13 | 1990-07-03 | Pernia Nicholas L | Lawn mower attachment for shredding and pulverizing |
| US4967546A ( en ) | 1989-10-30 | 1990-11-06 | Edward Forbush | Mulching attachment for lawn mower |
| WO1991006206A1 ( en ) | 1989-10-30 | 1991-05-16 | Edward Forbush | Mulching attachment for lawn mower |
| US5048279A ( en ) | 1990-02-07 | 1991-09-17 | Badawey George W | Leaf mulcher for use with a rotary blade power lawnmower |
| US5103624A ( en ) | 1991-01-03 | 1992-04-14 | Marshall James W | Method and means for sweeping stalks from furrows onto ridges and shredding same |
| US5191756A ( en ) | 1991-02-04 | 1993-03-09 | Deere Company | Mulching mower apparatus |
| US5129217A ( en ) | 1991-02-14 | 1992-07-14 | Ransomes, Inc. | Multiblade mulching mower |
| US5189868A ( en ) | 1992-03-23 | 1993-03-02 | Jerry Hill | Leaf mulcher |
| US5305589A ( en ) | 1992-05-26 | 1994-04-26 | C. Robert Christy | Mulching deck |
| US5267429A ( en ) | 1992-07-21 | 1993-12-07 | Deere Company | Rear discharge mulching apparatus |
| US5325657A ( en ) | 1992-07-30 | 1994-07-05 | Bevis Russell R | Debris guiding device for a lawn mower |
| US5284007A ( en ) | 1993-02-04 | 1994-02-08 | Poe William R | Lawn mower mounted leaf mulcher |
| US5337545A ( en ) | 1993-04-15 | 1994-08-16 | Butler Walt R | Mulch plate |
| US5491964A ( en ) | 1993-04-15 | 1996-02-20 | Butler; Walt R. | Adjustable mulch plate |
| US5373687A ( en ) | 1993-12-01 | 1994-12-20 | Secord; Walter J. J. | Mulching blade |
| EP1869967A3 ( en ) | 2002-02-01 | 2008-02-06 | The Toro Company | Rotary cutting deck with mulching and discharge/collection modes |
| EP1869967A2 ( en ) | 2002-02-01 | 2007-12-26 | The Toro Company | Rotary cutting deck with mulching and discharge/collection modes |
| US6874309B1 ( en ) | 2002-04-04 | 2005-04-05 | William B. Bellis, Jr. | Discharge baffle for lawnmower |
| US6862874B2 ( en ) | 2002-04-22 | 2005-03-08 | Deere Company | Discharge stopper units for mower decks |
| US20040194443A1 ( en ) | 2002-05-23 | 2004-10-07 | Honda Giken Kogyo Kabushiki Kaisha | Variable mulching system for a lawnmower |
| US20040187464A1 ( en ) | 2002-05-23 | 2004-09-30 | Honda Giken Kogyo Kabushiki Kaisha | Variable mulching system for a lawnmower |
| US6874310B2 ( en ) | 2002-05-23 | 2005-04-05 | Honda Motor Co., Ltd. | Variable mulching system for a lawnmower |
| US6843048B2 ( en ) | 2002-05-23 | 2005-01-18 | Honda Giken Kogyo Kabushiki Kaisha | Variable mulching system for a lawnmower |
| US20050028506A1 ( en ) | 2002-05-23 | 2005-02-10 | Osborne Christopher M. | Variable mulching system for a lawnmower |
| US7021040B2 ( en ) | 2002-05-23 | 2006-04-04 | Honda Motor Co., Ltd. | Variable mulching system for a lawnmower |
| US7055301B2 ( en ) | 2002-05-23 | 2006-06-06 | Honda Motor Co., Ltd. | Variable mulching system for a lawnmower |
| US20030217540A1 ( en ) | 2002-05-23 | 2003-11-27 | Honda Giken Kogyo Kabushiki Kaisha | Variable mulching system for a lawnmower |
| US7024847B2 ( en ) | 2002-05-31 | 2006-04-11 | Honda Motor Co., Ltd. | Mower deck |
| US20050091956A1 ( en ) | 2003-11-03 | 2005-05-05 | Benway Randy E. | Interchangeable mulching/discharge mowing deck |
| US7146791B2 ( en ) | 2003-11-03 | 2006-12-12 | Deere Company | Interchangeable mulching/discharge mowing deck |
| US20050126152A1 ( en ) | 2003-11-13 | 2005-06-16 | Scag Power Equipment. Inc. | Lawnmower having mulching cutter deck assembly |
| US7065946B2 ( en ) | 2003-11-13 | 2006-06-27 | Scag Power Equipment, Inc. | Lawnmower having mulching cutter deck assembly |
| US20070130899A1 ( en ) | 2004-06-17 | 2007-06-14 | Osborne Christopher M | Apparatus and method for controlling self-propelled machines |
| US7520112B2 ( en ) | 2004-06-17 | 2009-04-21 | Honda Motor Co., Ltd. | Apparatuses for controlling self-propelled machines |
| US20070261380A1 ( en ) | 2006-05-10 | 2007-11-15 | Danny Bledsoe | Mower discharge door |
| US7406817B2 ( en ) | 2006-05-10 | 2008-08-05 | Danny Bledsoe | Mower discharge sliding door |
| US7526909B1 ( en ) | 2008-04-14 | 2009-05-05 | Allen Procter | Quickly installable mulch-type accessory for a walk-behind or riding mower |
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| US4189904A ( en ) | 1980-02-26 | Leaf mulcher attachment for lawn mowers |
| US4083166A ( en ) | 1978-04-11 | Mulcher attachment for rotary power mower |
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| US5826417A ( en ) | 1998-10-27 | Operator controlled deflector plate for discharge chute of riding lawn mower |
| US3604189A ( en ) | 1971-09-14 | Knife mounting on a rotary mower |
| US4890446A ( en ) | 1990-01-02 | Mulching attachment for lawn mowers |
| US2509343A ( en ) | 1950-05-30 | Lawn mower cutter |
| US5019113A ( en ) | 1991-05-28 | Rotary lawn mower blade assembly |
| CA1289752C ( en ) | 1991-10-01 | Discharge cover |
| US4823464A ( en ) | 1989-04-25 | Grass trimmer |
| US4258539A ( en ) | 1981-03-31 | Grass discharge chute deflector for rotary lawn mower |
| EP0913078A1 ( en ) | 1999-05-06 | Mower device for lawnmower |
| US4135351A ( en ) | 1979-01-23 | Rotary lawn mower grass mulcher |
| US2737772A ( en ) | 1956-03-13 | Cutting disk assembly for power mowers |
| US2942400A ( en ) | 1960-06-28 | Rotary lawn mowers |
| US2697322A ( en ) | 1954-12-21 | Cutter member for rotating disk type lawn mowers |
| US3103094A ( en ) | 1963-09-10 | Safety-type, rotary vegetation cutting blade |
| US3500622A ( en ) | 1970-03-17 | Mower cutting blade |
| US4110959A ( en ) | 1978-09-05 | Mowing device |
| US3703071A ( en ) | 1972-11-21 | Rotary blade for mulching lawn mower |
| US3508385A ( en ) | 1970-04-28 | Multi-blade rotary mower |
| US4938011A ( en ) | 1990-07-03 | Lawn mower attachment for shredding and pulverizing |
| US4030275A ( en ) | 1977-06-21 | Rotary mower |
| US4578938A ( en ) | 1986-04-01 | Rake attachment for a rotary power mower |
| US3680295A ( en ) | 1972-08-01 | Safety rotary mower |
Lawn mower with mulcher 2023: Get a lawn mower with a bag for healthier grass
The best lawn mower with mulcher is a lawn mower with a bag – and it’ll help keep your lawn fresh and green.
Want a healthier, greener lawn? A lawn mower with mulcher is your new best friend. A mulching lawn mower is essentially a lawn mower with a bag that’s designed to transform your grass clippings into mulch. This material releases vital nutrients as it decomposes, providing your lawn with a nutrient boost.
With a lawn mower with a mulcher, the grass really is greener. Not only does it return goodness to the soil, but it’s also a fantastic way of preventing the lawn from drying out during hot spells. Plus, mulching can reduce the chances of unsightly thatch building up.
It’s not just about looks. A lawn mower with a mulcher is an environmentally friendly choice. It allows you to organically fertilize your lawn, naturally releasing nutrients like nitrogen. Plus, it reduces the amount of waste sent to landfill, so you can feel good in the knowledge that you’re doing your bit for the planet. Even better, it spares you the job of fertilizing your lawn and the associated costs.
If you want to keep your options open, you’ll find lawn mowers compatible with other accessories like a bagger. This saves you from having to commit and gives you flexibility.
When choosing one of the best lawn mowers, attachments are just one of the factors to weigh up. A key decision is whether you want a gas or an electric mower. Gas models boast unrivaled power, while electric mowers are a more sustainable option. Check out our guides to the best gas lawn mowers and the best electric lawn mowers to walk you through the key considerations.
For now, we’ve rounded up the best lawn mowers with a mulcher to keep your lawn lush. We’ll help you decide whether a lawn mower with a mulcher is right for you with buying advice about the pros and cons.
Best lawn mowers with a mulcher
Reasons to avoid
As you might expect from the manufacturer that set the record for the fastest lawn mower, the Honda HRN216VKA packs a punch.
The Honda HRN216VKA attracts seriously impressive reviews, scoring 4.6 out of 5 with 6299 reviews on Home Depot. People love it for the sheer power of the engine and the dependable starting. For a gas model, people are pleasantly surprised by its quiet operation, a perk if you’re concerned about mowing near buildings or neighbors. In terms of downsides, a few complain that it’s almost too powerful, making it hard to keep up with. It’s not the easiest to clean, so bear this in mind. A handful mention that some parts are made of plastic, but it still offers good value at 549.
This self-propelled model boasts a powerful 170 cc engine, making quick and easy work of lawn maintenance.
With reliable starting performance, you can wave goodbye to the frustration of your lawn mower not cranking. This model is self-propelled, sparing you the physical exertion of pushing it up hills, ideal on an uneven plot.
A big draw for this model is its versatility, with 3 options for grass clippings. Take your pick from mulching, bagging, and discharging. Easily switch between the 3 with the slide clip director. no need for attachments.
Thanks to the twin-blade system, this mower produces small clippings, which are brilliant for mulching as they decompose more quickly, giving your grass a quick nutrient fix.
Reasons to avoid
The Troy-Bilt TB100 is a nifty mower, perfect for small to medium-sized yards.
The Troy-Bilt TB100 scores a solid 4.4 out of 5 from 1634 reviews on Home Depot. People love that this mower is lightweight and easy to push. Several reviews praise the easy starting, making for a dependable mower. So, what are the downsides? The trade-off for it being compact is that it has a smaller gas tank. On larger plots, you may need to refuel to complete the job, though it shouldn’t present an issue for a smaller yard. A handful of reviews mention it’s awkward to refuel because of the position of the oil inlet and dipstick.
At 60 Ib, it’s super lightweight for a gas model, making it a fantastic choice for people with back problems or limited mobility.
This diminutive machine delivers a great cut, thanks to the TriAction cutting system. It produces small clippings, ideal for mulching. The hose attachment is a thoughtful design feature, making this mower easy to clean.
For the ultimate convenience, this mower comes ready assembled. Simply unfold the handle and off you go.
If you’re on a budget, the Troy-Bilt TB100 won’t break the bank at 369 (at the time of writing). Plus, that price includes a mulching kit. As you might expect, it doesn’t come with the luxuries of more expensive models, though it allows you to mulch the lawn for less. One downside is that you don’t have the option to attach a bagger.
Reasons to avoid
The Toro Recycler 21352 promises the power of gas with less maintenance.
The Toro Recycler 21352 scores a reassuring 4.3 out of 5 out of 9270 reviews on Home Depot. People are impressed with the power and quality of the machine with its sturdy steel-gauge deck. The clean, precise cut is another big draw.
The main downside people mention is the cap design on the bagger. The fit is not entirely snug which some mention results in grass clippings escaping. A few users report the self-propelled function is a learning curve. Finally, a couple of reviewers suggest the grip on the tires could be better, though overall, people are satisfied with their purchase.
With this model, there’s no need to change the oil. simply top up when needed. For this reason, it’s ideal for homeowners new to gas mowers, taking a load off your mind.
The patented cutting technology results in ultra-fine clippings. This is welcome news if you’re looking to mulch your lawn, as the small trimmings decompose more quickly, helping to nourish your grass. It’s named ‘the recycler’ because of its ability to return vitamins and nutrients to the soil.
Versatility is a plus, with 9 choices of cutting height. You can easily switch between mulching, bagging, and side discharge.
The Toro Recycler 21352 is self-propelled, saving you from the exertion of a push mower. At 399, it’s entry-level for a self-propelled model and offers good value.
Reasons to avoid
The Worx WG779 could be a match for you if ease of use is a priority.
The Worx WG779 scores a commendable 4.4 out of 5 with 544 reviews on Home Depot, with 89% recommending this product. People love that it’s lightweight and maneuverable, allowing it to tackle hard-to-reach areas. Reviewers are also impressed with the way it handles hills. Not everyone is a fan of the handle design, with a few reviews mentioning the position is awkward. The battery life draws mixed reviews, with some complimenting it and others suggesting it doesn’t last long enough. Whether it’s right for you may boil down to the size of your yard.
This battery-powered model saves you the faff of refueling. Plus, it’s cordless, which makes navigating obstacles like flowerbeds a breeze. With a narrow deck, this lightweight machine is nimble. an ideal candidate for tackling tight spaces. It’s a great choice if storage space is limited, as you can stow it away easily.
Thanks to the battery-powered operation, this model is kind to the planet, as you avoid the emissions of a gas mower. It also comes with a mulching kit, which makes it a sustainable choice.
At 335, it falls into the middle range of mowers on our list.
The drawbacks? Bear in mind that this mower is significantly narrower than others, meaning you will need to make more passes to cover the ground. Due to its diminutive size, this mower may be best suited for small yards.
Reasons to avoid
If you’re a battery-powered mower skeptic, the Ryobi RY401170 may be the one to convince you otherwise.
The Ryobi RY401170 is a crowd-pleaser, with a score of 4.7 out of 5 out of 2171 reviews on Home Depot. An outstanding 94% of reviewers would recommend this product. People rate it as a gas replacement mower and love the fast charging. Many are impressed with how quiet it is, ideal when mowing near buildings and neighbors. Out of the very few negative reviews, a few report issues with faults, though the 3-year warranty should give you peace of mind. A handful of reviewers complain about the battery life, so it may not be ideal for the largest yards or in tough conditions.
This machine promises the performance of gas without the hassle. If you are caught out by the batteries, you’ll be pleased to know it offers fast-charging capabilities.
With this model, you benefit from the convenience of cordless, so you don’t have to worry about getting the wires in a tangle. It delivers a superior cut and offers options for mulching, bagging, or side discharge as well as 7 cutting deck positions.
The Ryobi RY401170 has a 20-inch cutting deck which is on the small side. On a positive note, it takes up less storage space, plus the folding handles allow you to stow it away vertically. On the other hand, the narrow frame means it will take you more time to cover the ground.
Pros and cons of having a lawn mower with mulcher
Why you can trust Top Ten Reviews
Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.
Unsure whether a lawn mower with a mulcher is right for you? When selecting a lawn mower, it’s crucial to properly weigh up your choices.
“A lawn mower with a mulcher ultimately provides a greener look to your lawn,” says Adam Stally, Owner and Group Managing Director of Horace Fuller.
“Lawn mowers equipped with a mulcher are beneficial for numerous reasons besides the obvious one of saving time from disposing of the collected grass clippings. [It gives you] a healthier lawn from the grass roots in the soil receiving elevated levels of essential nutrients and moisture,” says Adam Stally, Owner and Group Managing Director of garden machinery supplier Horace Fuller.
Plus, a mulch retains moisture during hot weather. “[There’s] less need to water your lawn, saving water usage and reducing the risk of diseases and weed growth,” adds Adam. So a mulcher offers benefits for both you and your lawn.
So what are the trade-offs? For those who like a super-manicured look, you might not be so keen on leaving grass clippings on the lawn. If you’re concerned about the mess, look for a model that produces fine clippings. they will be less noticeable and decompose more quickly.
A lawn mower with a mulcher can be problematic if your lawn already has diseased patches or is infested with weeds. “A mulching lawn mower during the damp season can negatively contribute to a weed problem. If disease is already present in the lawn, mulching will only lead to spreading this throughout. Any weeds about to seed should not be mulched as this would distribute the seeds into larger areas of grass and harm it as a result,” cautions Adam.
We recommend treating the disease and eradicating weeds before using a lawn mower with a mulcher.
Mulching Grass the Right Way for a Healthier Lawn
Here in central Florida, nearly everybody mulches grass clippings. With St. Augustine, Zoysia, and Bahiagrass dominating our landscapes, it simply grows so fast that bagging and side discharging are usually impractical. But for much of the country, mulching grass is an option rather than a necessity. To get the greatest benefits for your lawn, there’s a right way to do it.
How to Set Up Your Lawn Mower for Mulching
Most walk-behind lawn mowers (push and self-propelled) come with a mulching option standard. To use it, start by taking the bagger and side discharge chute off if either one is installed.
At the back of the mower where the bagger was, lift up the rear guard (usually a plastic, spring-loaded door) and insert the mulching plug that came with your mower into the chute where grass normally travels into the bag.
Note: If your mower didn’t come with a mulching plug, many brands make mulching kits you can buy separately.
The side discharge hole (not all mowers have one) should also have a spring-loaded door that closes it up. You shouldn’t need to do anything else with it once the side discharge chute is off.
That’s it—you’re ready to mulch!
Preparing Your Lawn for Mulching Grass
Cut the Right Amount
Lawn mowers mulch grass by lifting the grass clippings into the deck and cutting them into fine pieces before they drop back into the ground. Because they need to be cut many more times than they do for bagging and side discharge, airflow is critical to the process. Airflow is created by the spinning blade, so keeping the RPMs high is important.
In general, try to mulch when you’re taking off no more than 2 inches of grass for the best results. That lets the blade speed stay up on just about any gas or battery-powered mower and get those fine pieces that send nutrients back into your lawn.
During high growth seasons (~8 months out of the year in Florida), you might need to mow every 5 days instead of once a week.
But What if the Lawn is Already Too High?
There’s ideal and then there’s practical when it comes to mulching grass. Ideally, you can cut your grass in stages—cut at the tallest height for your mower first, then drop it down another inch or two and do it again.
That’s a doable first step if you’re going to keep the lawn under control from there.
If your reality is that you’re just going to have to cut more than 2 inches at a time, you can still mulch. Be prepared to slow down or cut half-swaths in thicker sections. Remember, the goal is to keep your blade speed high, so whatever it takes to do that is key.
Cut When It’s Dry
You’ll typically get much better mulching results if you can cut when your grass is dry. That leaves the clippings lighter so they stay up in the deck longer and don’t stick to the sides.
Sometimes you don’t have a choice. During the summer, our grass takes forever to dry thanks to high humidity. And right about the time it does, sea breeze thunderstorms are about to unleash impressively high amounts of rain.
Mulching grass when it’s wet means the blade can’t cut the clippings as small before they drop out. And the wetter the grass, the more challenging it becomes, especially for battery-powered lawn mowers. If you have a choice between mowing wet grass and damp grass, go with damp.
Additional Tips for Mulching Grass
Sharpen Your Blade
Lawn mowers are powerful tools and they can still chop grass down with a dull blade. That doesn’t mean it’s doing a good job, though.
Keeping your blade sharp ensures that it slices the clippings better and keeps its RPMs as high as possible.
Change the Blade
Check to see what blade came on your mower. Often, you can replace the stock blade with a high-lift or mulching-specific blade to get even better results.
Mind Your Watering Schedule
During dry seasons when you water the lawn, try to cut the day before you water or the day of but before the sprinklers come on. You’ll be cutting when the grass is dry and you’ll immediately water in those nutrients the mulching process puts back in your lawn.
Like the mower we used in the photos? It’s a 60V self-propelled mower from Greenworks that we highly recommend. Check out our review or pick one up for yourself at Home Depot!
US3974629A. Lawn mower with improved mulching attachment. Google Patents
Publication number US3974629A US3974629A US05/587,956 US58795675A US3974629A US 3974629 A US3974629 A US 3974629A US 58795675 A US58795675 A US 58795675A US 3974629 A US3974629 A US 3974629A Authority US United States Prior art keywords chute frame shaft lawn mower affixed Prior art date 1975-06-18 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired. Lifetime Application number US05/587,956 Inventor Lionel E. Russell David Franklin McNabb Original Assignee Russell Lionel E Mcnabb David Franklin Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) 1975-06-18 Filing date 1975-06-18 Publication date 1976-08-17 1975-06-18 Application filed by Russell Lionel E, Mcnabb David Franklin filed Critical Russell Lionel E 1975-06-18 Priority to US05/587,956 priority Critical patent/US3974629A/en 1976-08-17 Application granted granted Critical 1976-08-17 Publication of US3974629A publication Critical patent/US3974629A/en 1993-08-17 Anticipated expiration legal-status Critical Status Expired. Lifetime legal-status Critical Current
Links
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Images
Classifications
- A — HUMAN NECESSITIES
- A01 — AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D — HARVESTING; MOWING
- A01D34/00 — Mowers; Mowing apparatus of harvesters
- A01D34/001 — Accessories not otherwise provided for
- A01D34/005 — Mulching means
- A — HUMAN NECESSITIES
- A01 — AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D — HARVESTING; MOWING
- A01D2101/00 — Lawn-mowers
Abstract
A lawn mower having means forr chopping grass cutting, leaves and the like into small sizes for depositing the cut material in the form such that it will serve as mulch and not have to be raked from a lawn after it is cut, the mower including an iverted cup shaped frame having wheels and a handle, the frame having an outlet chute at one side, a prime mover supported on the frame, a vertical shaft supported by the frame having the horizontal cutting blade affixed to the shaft below the frame, the prime mover being coupled to rotate the vertical shaft, a rotatable auxiliary blade supported in the outlet chute, the auxiliary blade supported in the outlet chute, the auxiliary blade having a shaft extending therefrom and means of coupling the prime mover to rotate the auxiliary blade shaft so that cuttings discharged through the outlet chute pass the rotating auxiliary blade and are cut into small sizes.
Description
The most commonly used lawn mower today is of the type having an inverted cup shaped frame with a prime mover, usually a gasoline powered engine but sometimes an electric motor, mounted on the frame with a vertical shaft extending through the frame and a horizontal cutting blade affixed to the shaft below the frame. The horizontal blade rotates at a fast rate, cutting grass. The rotating force of the blade blows the grass out a side opening outlet chute formed in the frame.
In order to improve the discharge of the cut grass out the side opening chute, some blades have a small portion which is curved upwardly at the outer end to provide a fan effect. This helps lift the grass up as it is cut and forces air out the outlet chute to carry the cuttings with it.
Lawn cuttings, particularly if the grass is high when cut, may be of relatively large size and when deposited directly onto a lawn tend to shade the grass and interfere with its growth. In addition, the deposited cuttings are unsightly. For this reason many meticulous gardeners rake the grass cuttings or attach collecting receptacles to the lawn mower to catch the cuttings as they are discharged out of the housing outlet chute.
It is known that if the cuttings are sufficiently fine they will sift down between the blades of grass on the lawn so as not to shade the grass. At the same time fine cuttings form a mulch, preventing evaporation of water from the soil. In addition, fine grass cuttings caught in a receptacle or grass catcher are more readily reacted by bacteria and therefore when placed in a compost pile will be more quickly converted by bacteria into usable compost.
For this reason it is desirable that the cuttings emanating from a lawn mower be as fine as possible. The present invention is directed towards a lawn mower having a means of chopping cut grass, leaves and the like into small sizes.
It is therefore an object of this invention to provide an improved lawn mower which cuts grass, leaves and other material which is discharged out of a side chute with an auxiliary cutter to cut the grass cuttings into small sizes.
This general object, as well as other and more specific objects of the invention will be fulfilled in the following description and claims, taken in conjunction with the attached drawings.
FIG. 3 is a cross-sectional view taken along the line 33 of FIG. 1 showing the auxiliary cutter attachment.
FIG. 4 is a cross-sectional view of the auxiliary cutter attachment taken along the line 44 of FIG. 2.
FIG. 6 is a cross-sectional view as shown in FIG. 4 but showing an alternate embodiment of the invention.
The invention is directed towards a lawn mower of the most commonly used type, that is, having a horizontal deck and vertical side walls therearound, a vertical shaft supported in the housing, a rotating horizontal blade affixed to the shaft below the housing which cuts the grass and a prime mover mounted on top of the housing for rotating the shaft, the invention including the addition to this usual arrangement, an auxiliary cutter at the outlet chute in the side of the housing through which the cut grass passes, the auxiliary cutter having a rotatable blade therein, and means for coupling the rotatable blade to the prime mover so that as the cut grass passes out through the auxiliary outlet it is chopped into small sizes.
Referring to the drawings and first to FIG. 1, a top view of a lawn mower incorporating the principles of the invention is illustrated. The lawn mower includes a frame housing 10 having a horizontal deck portion and vertical extending frame side walls having wheels 12 by which the mower is moved on the ground and a handle portion 14 partially shown.
Mounted on top of the housing 10 is a prime mover, in this case a gasoline powered engine generally indicated by the numeral 16. It is understood that the prime mover may also be an electric motor.
As shown in FIG. 5, there is supported by the frame 10 a vertical shaft 18 which extends through the housing 10. Affixed to the shaft 18 below the housing is a horizontal cutting blade 20. In the most common arrangement the vertical shaft 18 is the drive shaft of engine 16, although in some lawn mowers the prime mover 16 may have a horizontal drive shaft, in which case pulleys connect the prime mover drive shaft with the vertical drive shaft 18. Affixed to the vertical drive shaft 18 above housing 10 is a drive pulley 22.
Referring back to FIG. 1, the housing 10 has an outlet chute 24 in the side thereof through which grass cuttings are discharged. Affixed to the outlet chute is a chute extension 26 which may be made integral with the housing 10 or removably attached to it as illustrated. When removably attached the chute may have a flange as shown supported to a mating flange on the frame 10 so that the chute is held in place by bolts 28.
An auxiliary blade 30 (see FIG. 2) is rotatably supported within auxiliary chute extension 26. As shown in FIG. 3, the blades 30 are affixed to a vertical auxiliary shaft 32. Upper and lower bearings 34A and 34B may be provided in the chute extension 26 to support the auxiliary shaft. Affixed to one end of the shaft 32 is a sheave 36.
The blade 30 may be of a variety of configurations. In the illustrated arrangement of FIG. 4 there are four blades 30 extending from shaft 32. Obviously, one, two, three or more blades may be employed.
Referring again to FIG. 1, a belt 38 is looped around sheave 22 and sheave 36 so that prime mover 16, when rotating the cutting blade 20, also rotates the auxiliary cutting blade 30. To insure proper tension of belt 18, a pulley 40 is rotatably positioned on the top of the frame 10 and may be positionably adjustable so as to apply the correct tension to belt 38.
By means of prime mover 16 shaft 18 rotates horizontal cutting blade 20, cutting grass and forcing it out through chute 24 in the side of housing 10. At the same time the auxiliary blade 30 is rotated. As the grass moves through the auxiliary chute 26 it passes the rapidly rotating auxiliary blade 30 and is cut into small sizes. The cuttings are then discharged out of the auxiliary chute. The small cuttings may be collected in a bag (not shown) in the normal manner.
FIGS. 6 and 7 show an alternate arrangement of the invention. In this embodiment the auxiliary cutting blades are formed of two portions, that is, a hub portion 42 which is affixed to auxiliary shaft 32 and outer pivoted blades 44. The outer blade portions 44 are pivoted to the hub portion 42 by pins 46. In this arrangement the rotation of the auxiliary shaft 32 rotates the hub 42 and thereby the pivoted blades 44. If a large hard object, such as a rock, limb, piece of metal or the like, is picked up by the cutting blade of the mower and discharged through the outlet chute 24 it can pass through the outlet chute without damaging the blades 44 since they will strike the object but will not be broken by it as they will pivot relative to the rotating hub 42.
Another embodiment illustrated in FIGS. 6 and 7 is the provision of a screen 48 in the outer end of the auxiliary chute 26. The screen 42 is preferably a semi-circle with auxiliary shaft 32 as the center. The outer tips of pivoted blades 44 pass near the screen 48. Openings 50 in the screen permit cuttings to pass therethrough. The size of the openings 50 regulates the size of the cuttings which are discharged, the smaller the opening the smaller the size of discharge cuttings. The use of the pivoted blades 44 and screen 48 provides a hammermill effect which insures the selectable fineness of the grass cuttings which are discharged. In addition, the screen 48 serves as a safety feature to prevent a blade 44 which might inadvertently become disconnected from the hub 42 from being thrown outwardly and in like manner prevents other large hard objects from being discharged outwardly through the auxiliary chute 26.
The screen 48 may be removably supported to the auxiliary chute 26 by integral flanges at each end, held in place by bolts 52. In this manner the screen 48 may be changed and the user may thereby select a screen with the size of openings desired to thereby control the size of cuttings which are discharged from the mower.
The invention is applicable to the initial design and construction of lawn mowers. It may be applied to existing mowers by adapting pulley 22 between the frame 10 and the prime mower 16 and attaching the auxiliary chute 26 with the cutter blade 30 therein. It can be seen also that the lawn mower incorporating the principles of this invention may be designed such that the auxiliary cutter arrangement is provided as an optional extra.
While the invention has been described with a certain degree of particularity it is manifest that many changes may be made in the details of construction and the arrangement of components without departing from the spirit and scope of this disclosure. It is understood that the invention is not limited to the embodiments set forth herein for purposes of exemplification, but is to be limited only by the scope of the attached claim or claims, including the full range of equivalency to which each element or step thereof is entitled.
Claims ( 6 )
A lawn mower having means for chopping cut grass, leaves and the like into small sizes, comprising:
a frame having a horizontal deck portion and vertical downwardly extending frame side walls therearound, the side walls having a discharge opening therein, the frame having wheels for moving over the ground and a handle extending therefrom for guiding the mower;
a horizontal cutting blade affixed to the shaft below the frame deck portion by which grass is cut and expelled along with leaves and the like out through said discharge opening;
a chute affixed to said frame communicating with said discharge opening, the chute being outside the rotational area of said horizontal cutting blade, the frame side walls and chute being arranged so that cut grass, leaves and the like are expelled through said chute by the action of said horizontal cutting blade and the chute being defined by horizontal top and bottom walls and vertical side walls providing an enclosed rectangular passageway therethrough;
a vertical auxiliary shaft supported within said chute by bearings affixed to said chute top and bottom walls, the vertical auxiliary shaft extending through an opening in said top wall;
rectangular chopping blades affixed to said auxiliary shaft within said chute, the periphery of the blades conforming in close proximity to said rectangular passageway in said chute;
a belt looped around said drive sheave and said driven sheave whereby said chopping blades are rotated by said prime mover to chop into small pieces cut grass, leaves and the like expelled through the chute.
A lawn mower according to claim 1 wherein said chute is removably attachable to said frame at said discharge opening.
A lawn mower according to claim 1 wherein said rectangular chopping blades are in the form of at least four blades, each affixed to and extending radially from said auxiliary shaft and evenly spaced around said auxiliary shaft whereby said chute passageway is substantially closed at all times against the passage of large objects therethrough.
A lawn mower according to claim 1 in which the outer portions of said chopper blades are pivotally supported to inner portions.
A lawn mower according to claim 5 in which said screen is semi-circular with said auxiliary blade shaft as the center.
US05/587,956 1975-06-18 1975-06-18 Lawn mower with improved mulching attachment Expired. Lifetime US3974629A ( en )
Priority Applications (1)
| US05/587,956 US3974629A ( en ) | 1975-06-18 | 1975-06-18 | Lawn mower with improved mulching attachment |
Applications Claiming Priority (1)
| US05/587,956 US3974629A ( en ) | 1975-06-18 | 1975-06-18 | Lawn mower with improved mulching attachment |
Family Applications (1)
| US05/587,956 Expired. Lifetime US3974629A ( en ) | 1975-06-18 | 1975-06-18 | Lawn mower with improved mulching attachment |
Cited By (13)
| US4193249A ( en ) | 1978-05-16 | 1980-03-18 | Tackett Deforest | Hydraulic drive for lawn clipping vacuum collector |
| US4411125A ( en ) | 1982-05-17 | 1983-10-25 | Strickland Hubert E | Multi-function apparatus for lawn maintenance |
| US4916887A ( en ) | 1989-08-14 | 1990-04-17 | Excel Industries, Inc. | Rotary mulching mower |
| US4936885A ( en ) | 1987-08-06 | 1990-06-26 | Kubota Ltd. | Terrain traversing apparatus having means for transferring grass clippings to a collection box |
| US5062258A ( en ) | 1985-08-13 | 1991-11-05 | Kubota Ltd | Terrain traversing apparatus having means for transferring grass clippings to collection box |
| US5070683A ( en ) | 1989-10-10 | 1991-12-10 | Alfred Eggenmueller | Method and apparatus for mulching of grass, leafage, or similar material |
| US5129217A ( en ) | 1991-02-14 | 1992-07-14 | Ransomes, Inc. | Multiblade mulching mower |
| EP0526763A2 ( en ) | 1991-07-12 | 1993-02-10 | HS Technik und Design Technische Entwicklungen GmbH | Lawn mower |
| US5189868A ( en ) | 1992-03-23 | 1993-03-02 | Jerry Hill | Leaf mulcher |
| US5485715A ( en ) | 1994-11-14 | 1996-01-23 | Breeden; Harlan | Grass and leaf eradicator |
| US5613353A ( en ) | 1995-05-09 | 1997-03-25 | Kugler; Jack L. | Mulching attachment for lawnmowers |
| US8857137B2 ( en ) | 2011-11-17 | 2014-10-14 | Tzvi Avnery | Robotic lawn mower for cutting around conveyance member |
| US9699963B2 ( en ) | 2015-06-11 | 2017-07-11 | Deere Company | Mulch kit control lever |
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| US2771730A ( en ) | 1954-06-17 | 1956-11-27 | Martin E True | Lawn mower and trimmer |
| US2791080A ( en ) | 1954-07-21 | 1957-05-07 | Outboard Marine Corp | Rotary type power lawn mower with lateral discharge |
| US2983096A ( en ) | 1954-10-08 | 1961-05-09 | William H Phelps | Rotary cutter and housing structure |
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Cited By (14)
| US4193249A ( en ) | 1978-05-16 | 1980-03-18 | Tackett Deforest | Hydraulic drive for lawn clipping vacuum collector |
| US4411125A ( en ) | 1982-05-17 | 1983-10-25 | Strickland Hubert E | Multi-function apparatus for lawn maintenance |
| US5062258A ( en ) | 1985-08-13 | 1991-11-05 | Kubota Ltd | Terrain traversing apparatus having means for transferring grass clippings to collection box |
| US4936885A ( en ) | 1987-08-06 | 1990-06-26 | Kubota Ltd. | Terrain traversing apparatus having means for transferring grass clippings to a collection box |
| US4916887A ( en ) | 1989-08-14 | 1990-04-17 | Excel Industries, Inc. | Rotary mulching mower |
| US5070683A ( en ) | 1989-10-10 | 1991-12-10 | Alfred Eggenmueller | Method and apparatus for mulching of grass, leafage, or similar material |
| US5129217A ( en ) | 1991-02-14 | 1992-07-14 | Ransomes, Inc. | Multiblade mulching mower |
| EP0526763A2 ( en ) | 1991-07-12 | 1993-02-10 | HS Technik und Design Technische Entwicklungen GmbH | Lawn mower |
| EP0526763A3 ( en ) | 1991-07-12 | 1993-03-17 | Hs Technik Design Technische Entwicklungen Gmbh | Lawn mower |
| US5189868A ( en ) | 1992-03-23 | 1993-03-02 | Jerry Hill | Leaf mulcher |
| US5485715A ( en ) | 1994-11-14 | 1996-01-23 | Breeden; Harlan | Grass and leaf eradicator |
| US5613353A ( en ) | 1995-05-09 | 1997-03-25 | Kugler; Jack L. | Mulching attachment for lawnmowers |
| US8857137B2 ( en ) | 2011-11-17 | 2014-10-14 | Tzvi Avnery | Robotic lawn mower for cutting around conveyance member |
| US9699963B2 ( en ) | 2015-06-11 | 2017-07-11 | Deere Company | Mulch kit control lever |
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| US2734327A ( en ) | 1956-02-14 | Lawn mower |
| CA2124449C ( en ) | 1999-04-27 | Mulching mower with obround cutting chamber |
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| US5669563A ( en ) | 1997-09-23 | Chipper shredder with use-enhancing features |
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| US4351144A ( en ) | 1982-09-28 | Comminuting powered lawn mower |
| US5794864A ( en ) | 1998-08-18 | Portable lawn and garden mulching vacuum |
| US5142851A ( en ) | 1992-09-01 | Post-processing apparatus for lawn mowers and the like |
| USRE29139E ( en ) | 1977-02-22 | Lawn maintenance equipment |
| US5375399A ( en ) | 1994-12-27 | Lawn thatching device and process for removal of thatch |
| US3884020A ( en ) | 1975-05-20 | Leaf shredding means for rotary mowers |
