CA2083356A1 - Lawn mower and rotor press therefor - Google Patents
Lawn mower and rotor press thereforInfo
- Publication number
- CA2083356A1 CA2083356A1 CA 2083356 CA2083356A CA2083356A1 CA 2083356 A1 CA2083356 A1 CA 2083356A1 CA 2083356 CA2083356 CA 2083356 CA 2083356 A CA2083356 A CA 2083356A CA 2083356 A1 CA2083356 A1 CA 2083356A1
- Authority
- CA
- Canada
- Prior art keywords
- rotor
- tine
- press
- conveying channel
- rotor press
- Prior art date
- 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.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D43/00—Mowers combined with apparatus performing additional operations while mowing
- A01D43/06—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material
- A01D43/063—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material in or into a container carried by the mower; Containers therefor
- A01D43/0633—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material in or into a container carried by the mower; Containers therefor with compacting means
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D2101/00—Lawn-mowers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
Abstract:
A lawn mower and a rotor press therefor with a compact and simple design is disclosed. A horizontally extending separating wall is arranged between the rotational path of the mowing knives and the space taken by a tine rotor.
A lawn mower and a rotor press therefor with a compact and simple design is disclosed. A horizontally extending separating wall is arranged between the rotational path of the mowing knives and the space taken by a tine rotor.
Description
-,- 20%33~6 Title:
Lawn Mower and Rotor Press Therefor Field of the Invention The invention relates to a lawn mower and a rotor press therefor, having at least one rotating mowing knife with a rotational path above which a tine rotor is arranged having at least one tine and a conveying channel following the tine rotor and ending in a collecting container.
Bac~ground of the Art U.S. Patent No. 4,986,063 discloses such a rotor press having the form of a tine rotor with a plurality of tines rigidly fixed thereto and being arranged somewhat offset in vertical direction above the rotational path of the rotor, however, arranged in moving direction of the lawn mower behind the rotational path of the mowing knives. Such an arrangement of the rotor press essentially at the rear portion of the lawn mower results in a smooth material flow: however, it causes a considerable increase in the overall length of the lawn mower. Furthermore, with the relatively heavy rotor press being arranged behind the rear axle o~ the lawn mower, this may lead to an unloading of the front end of the lawn mower with increasing load of the collecting container such that the operator will have to apply additional supporting forces. This is in particular true in case the container is not arranged above the lawn mower, but, as seen in moving direction, behind the lawn mower, as may be convenient ~or the removal of the collecting container.
U.S. Patent No. 5,070,683 discloses an apparatus for mulching grass o~ leafage, using a similar tine rotor arranged at the rear portion of the lawn mower. One embodiment comprises the arrangement of the tine rotor totally or partially above the rotational path of the mowing knives, such that there is achieved a relatively compact apparatus. However, there may be the problem that mown grass is thrown directly from the mowing knives onto the tine rotor, with only part thereof arriving on -2- 20833~6 the conveying front surfaces of the tines, whilst another part of the grass thrown away arrives at the rear of the conveying surfaces such that these grass portions drop onto the ground.
This is of no importance for the mulching apparatus as disclosed, since during mulching the mown grass is distributed over the ground anyway. However, if the grass is to be collected in a container, it is undesirable that a considerable portion of the mown grass drops onto the ground.
~ummary of the Invention It is an object of the invention to provide a rotor press for a lawn mower permitting a more complete conveying of mown grass in a container.
It is a further object of the invention to provide a lawn mower having a compact design and simple construction.
Accordingly, the lawn mower according to the invention is provided with rotating mowing knife means comprising tine rotor means peripherally provided with tine means and mounted for rotation in a chamber arranged above a rotational path of said tine rotor means: conveying channel means arranged downstream of 8aid tine rotor means; essentially horizontally extending separating wall means arranged between said rotating path of said mowing knife means and said chamber o~ said tine rotor means; and container means connected to said conveying channel means.
According to another aspect of the invention a rotor press for a lawn mower having rotatable mowing knife means compri~es: tine rotor means peripherally provided with tine means and mounted for rotation in a chamber arranged above a rotational path of said tine rotor means; conveying channel means arranged downstream of said tine rotor means; essentially horizontally extending separating wall means arranged between said rotating path of said mowing knife means and said chamber of said tine rotor means; and container means connected to said conveying channel means.
By arranging a separating wall between the essentially cylindrical rotor chamber (or housing) of the rotor press and the rotational path of the mowing knives in an essentially horizontal arrangement, the portion of grass directly thrown onto the tine rotor will not drop onto ground but may deposit on the horizontally extending separating wall for being removed therefrom upon the next passing of the tines of the tine rotor.
A more uniform feeding of grass to the rotor press is achieved with only a few tines, in particular only one tine, as during rotation of the tine rotor over an angle of about 300 no conveying is necessary, since the material is collected on the separating wall and will then be shifted away periodically to the conveying channel. As compared with known tine rotors having a plurality of tines, the rotor press of the invention may be manufactured considerably cheaper. Furthermore, the throwing path of the grass material toward the conveying channel is essentially unobstructed such that the mowing knives may throw the grass far into the conveying channel, resulting in the saving of driving energy for further conveying the material into the container.
By having only one tine or very few tines arranged, the tine rotor may rotate faster, saving a reduction gearing. For example, with an upright arrangement of the rotor press, the vertical shaft of the tine rotor may be directly driven by a belt drive for the mowing knives drive, without expensive reduction gearing. Furthermore, by providing the separating wall the rotor press may be arranged close to the center, preferably seen in moving direction of the lawn mower, essentially directly behind the mowing knives shaft, such that the weight of the lawn mower is distributed more uniformly, which is of particular benefit for hand-operated lawn mowers when mowing inclined areas.
Additionally, providing the separating wall at the bottom side of the rotor, there is achieved a smooth transition to the conveying channel and a reinforced design, such that the housing ~4~ 20833~6 of the rotor press will be a very stable device despite lower material strength. Also, in view of the conveying channel extending upwardly from the separating wall and the rotor press offset upward, the rear axle for the moving drive of the lawn mower may be arranged below the conveying channel resulting in an easy drive. With a preferred embodiment of the tine rotor using an upright driving shaft the face wall of the press housing forms the separating wall, resulting in a further reduction of manufacturing expenditures.
Further objects, features and advantages of the invention will become more apparent from the following description of embodiments with reference to the drawings.
Brief Description of the Drawings ig. 1 is an elevational view of a lawn mower comprising a rotor press arranged above the rotational path of the mowing knives;
Fig. 2 is a plan view of the lawn mower of Pig. 1;
Fig. 3 is an elevational view of a modified embodiment of the rotor press; and Fig. 4 is a plan view of the embodiment of Fig. 3.
~-st Mode of Carrying out the Inventlon Figs. 1 and 2 illustrate a lawn mower 100 having a flat cylindrical housing 1 in which one or several mowing knives 2 rotate in a horizontal rotational path 2', as indicated by dash-dot lines. Above this rotational path 2' and in front of a collecting container 3 there is arranged a cylindrical rotor chamber 4' o~ a rotor press 4 essentially comprising an upright rotor 5 provided with the preferred embodiment, with two radially extending tines 6 only. The latter are driven by a driving motor 8 via a belt drive 7. The tines 6 are controlled in radial direction by means of a crank slide oscillator 9 and an excentrically arranged bolt 10 stationary mounted at a horizontally arranged separating wall 11. During rotation of the rotor 5 the tines 6 are alternatingly protracted and retracted -5- 20833~6 by means of this excenter or crank control. Thus, grass accelerated by the mowing knives 2 is thrown over an inlet edge 12 onto the separating wall 11 and is conveyed toward a conveying channel 13 ending essentially centrally into the collecting container 3. The separating wall 11 smoothly transits in rearward direction to a lower channel wall portion of conveying channel 13.
Fig. 2 is a plan view of the embodiment of Fig. 1 illustrating that the throwing path of the mown grass material indicated in double dash-dot lines extends far into the conveying channel 13 since with this rotor press only very few tines 6 are in engagement. Thus, the grass material directly thrown into the conveying channel 13 will deposit on the lower horizontal separating wall 11 until it is moved by the rotating tines 6 into the conveying channel 13. The extent of the separating wall 11 is shown in dotted lines. The inlet e,dge 12 as a front limiting edge of the essentially horizontally extending separating wall 11 is straight in radial direction; however, it may be curved as well in accordance with the rotational circle of the tips of the tines 6. This ensures that the material thrown onto separating wall 11 and staying there for fractions of a second is safely moved away and does not fall onto the ground. It should be noted that the rotational path of the mowing knives 2 indicated in dash-dot lines extends with little loose below separating wall 11 and inlet edge 12 such that grass possibly adhering to the mowing knives 2 is stripped off from inlet edge 12 and is moved onto separating wall 11.
Figs. 3 and 4 illustrate a modified embodiment of a rotor press 24 in elevational view and the corresponding plan view, respectively, which rotor press 24 is mounted at or, respectively, to, a ma~or part in a housing 21 of a lawn mower 200. As with the first embodiment mowing knives 22 rotate in housing 21 in a horizontal rotational plane. Mown grass is conveyed through rotor press 24 rotating in the rotor chamber 24' into a collecting container 23. The rotor press 24 -6- 20833~
of this embodiment comprises a drum-type rotor 25 having mounted thereon rigid tines 26 which pass through a comb-type strip-off element 37. The central tube of tine rotor 25 is rotated by a horizontally operating belt drive 27 arranged in triangular form such that a drive shaft 38 of the mowing knives 22, the central tube of rotor press 24, and a drive 40 for the rear axle of the lawn mower are simultaneously driven.
As with the first embodiment the rotational path of the mowing knives 22 and the cylindrical rotor chamber 24' of rotor press 24 are separated by an essentially horizontally extending separating wall 31, grass thrown away from the rotating mowing knives 22 enters rotor press 24 and deposits temporarily on separating wall 31 (indicated by dots) before it is further conveyed into a conveying channel 23 by rotating tines 26. An interior peripheral surface of the press or conveying channel 23 is provided with a longitudinal rib 28 permitting the tips of the rotating tines 26 to pass therealong, causing the conveyed grass being further compacted and diminuted.
It should be noted that the rotor chamber 24' of rotor press 24 is divided by the rib 28 into two conveying portions with one tine 26 only provided in the upper portion whilst two tines 26 are provided in the lower portion since inherently more material will be collected in the lower portion on separating wall 31, which material has to be removed faster than that collected in the upper portion.
In order to avoid overloading, an outer wall portion 39 of the conveying channel 33 provided with the rib 28 is connected tangentially to the housing 21 and is slightly pivotable outward about a pivoting axis 30 against the biasing force of a spring 29 (viz. Fig. 4). Similarly, a lower channel wall portion 34 smoothly extending towards the separating wall 11 may be pivotable as well about a pivoting axis 32 extending normal to pivoting axis 30. This adjusts the tapering of conveying channel 33 since container 23 is connected to the lower channel wall portion 34 and is supported by a pressing spring 36. The ~7- 20833~
increasing weight of collecting container 23 being filled acts onto the lower channel wall portion 34 of the conveying channel 33 against the force of pressing spring 36 downward, causes the conveying channel 33 to be widened such that the conveying is lightened.
It should be noted that collecting container 23 may have rigid walls or may be flexibly formed as a bag connected to the exit of the conveying channel 33.
Tine rotors may be of a type having fixed or controlled tines, with the rotor in vertical or horizontal arrangement.
Lawn Mower and Rotor Press Therefor Field of the Invention The invention relates to a lawn mower and a rotor press therefor, having at least one rotating mowing knife with a rotational path above which a tine rotor is arranged having at least one tine and a conveying channel following the tine rotor and ending in a collecting container.
Bac~ground of the Art U.S. Patent No. 4,986,063 discloses such a rotor press having the form of a tine rotor with a plurality of tines rigidly fixed thereto and being arranged somewhat offset in vertical direction above the rotational path of the rotor, however, arranged in moving direction of the lawn mower behind the rotational path of the mowing knives. Such an arrangement of the rotor press essentially at the rear portion of the lawn mower results in a smooth material flow: however, it causes a considerable increase in the overall length of the lawn mower. Furthermore, with the relatively heavy rotor press being arranged behind the rear axle o~ the lawn mower, this may lead to an unloading of the front end of the lawn mower with increasing load of the collecting container such that the operator will have to apply additional supporting forces. This is in particular true in case the container is not arranged above the lawn mower, but, as seen in moving direction, behind the lawn mower, as may be convenient ~or the removal of the collecting container.
U.S. Patent No. 5,070,683 discloses an apparatus for mulching grass o~ leafage, using a similar tine rotor arranged at the rear portion of the lawn mower. One embodiment comprises the arrangement of the tine rotor totally or partially above the rotational path of the mowing knives, such that there is achieved a relatively compact apparatus. However, there may be the problem that mown grass is thrown directly from the mowing knives onto the tine rotor, with only part thereof arriving on -2- 20833~6 the conveying front surfaces of the tines, whilst another part of the grass thrown away arrives at the rear of the conveying surfaces such that these grass portions drop onto the ground.
This is of no importance for the mulching apparatus as disclosed, since during mulching the mown grass is distributed over the ground anyway. However, if the grass is to be collected in a container, it is undesirable that a considerable portion of the mown grass drops onto the ground.
~ummary of the Invention It is an object of the invention to provide a rotor press for a lawn mower permitting a more complete conveying of mown grass in a container.
It is a further object of the invention to provide a lawn mower having a compact design and simple construction.
Accordingly, the lawn mower according to the invention is provided with rotating mowing knife means comprising tine rotor means peripherally provided with tine means and mounted for rotation in a chamber arranged above a rotational path of said tine rotor means: conveying channel means arranged downstream of 8aid tine rotor means; essentially horizontally extending separating wall means arranged between said rotating path of said mowing knife means and said chamber o~ said tine rotor means; and container means connected to said conveying channel means.
According to another aspect of the invention a rotor press for a lawn mower having rotatable mowing knife means compri~es: tine rotor means peripherally provided with tine means and mounted for rotation in a chamber arranged above a rotational path of said tine rotor means; conveying channel means arranged downstream of said tine rotor means; essentially horizontally extending separating wall means arranged between said rotating path of said mowing knife means and said chamber of said tine rotor means; and container means connected to said conveying channel means.
By arranging a separating wall between the essentially cylindrical rotor chamber (or housing) of the rotor press and the rotational path of the mowing knives in an essentially horizontal arrangement, the portion of grass directly thrown onto the tine rotor will not drop onto ground but may deposit on the horizontally extending separating wall for being removed therefrom upon the next passing of the tines of the tine rotor.
A more uniform feeding of grass to the rotor press is achieved with only a few tines, in particular only one tine, as during rotation of the tine rotor over an angle of about 300 no conveying is necessary, since the material is collected on the separating wall and will then be shifted away periodically to the conveying channel. As compared with known tine rotors having a plurality of tines, the rotor press of the invention may be manufactured considerably cheaper. Furthermore, the throwing path of the grass material toward the conveying channel is essentially unobstructed such that the mowing knives may throw the grass far into the conveying channel, resulting in the saving of driving energy for further conveying the material into the container.
By having only one tine or very few tines arranged, the tine rotor may rotate faster, saving a reduction gearing. For example, with an upright arrangement of the rotor press, the vertical shaft of the tine rotor may be directly driven by a belt drive for the mowing knives drive, without expensive reduction gearing. Furthermore, by providing the separating wall the rotor press may be arranged close to the center, preferably seen in moving direction of the lawn mower, essentially directly behind the mowing knives shaft, such that the weight of the lawn mower is distributed more uniformly, which is of particular benefit for hand-operated lawn mowers when mowing inclined areas.
Additionally, providing the separating wall at the bottom side of the rotor, there is achieved a smooth transition to the conveying channel and a reinforced design, such that the housing ~4~ 20833~6 of the rotor press will be a very stable device despite lower material strength. Also, in view of the conveying channel extending upwardly from the separating wall and the rotor press offset upward, the rear axle for the moving drive of the lawn mower may be arranged below the conveying channel resulting in an easy drive. With a preferred embodiment of the tine rotor using an upright driving shaft the face wall of the press housing forms the separating wall, resulting in a further reduction of manufacturing expenditures.
Further objects, features and advantages of the invention will become more apparent from the following description of embodiments with reference to the drawings.
Brief Description of the Drawings ig. 1 is an elevational view of a lawn mower comprising a rotor press arranged above the rotational path of the mowing knives;
Fig. 2 is a plan view of the lawn mower of Pig. 1;
Fig. 3 is an elevational view of a modified embodiment of the rotor press; and Fig. 4 is a plan view of the embodiment of Fig. 3.
~-st Mode of Carrying out the Inventlon Figs. 1 and 2 illustrate a lawn mower 100 having a flat cylindrical housing 1 in which one or several mowing knives 2 rotate in a horizontal rotational path 2', as indicated by dash-dot lines. Above this rotational path 2' and in front of a collecting container 3 there is arranged a cylindrical rotor chamber 4' o~ a rotor press 4 essentially comprising an upright rotor 5 provided with the preferred embodiment, with two radially extending tines 6 only. The latter are driven by a driving motor 8 via a belt drive 7. The tines 6 are controlled in radial direction by means of a crank slide oscillator 9 and an excentrically arranged bolt 10 stationary mounted at a horizontally arranged separating wall 11. During rotation of the rotor 5 the tines 6 are alternatingly protracted and retracted -5- 20833~6 by means of this excenter or crank control. Thus, grass accelerated by the mowing knives 2 is thrown over an inlet edge 12 onto the separating wall 11 and is conveyed toward a conveying channel 13 ending essentially centrally into the collecting container 3. The separating wall 11 smoothly transits in rearward direction to a lower channel wall portion of conveying channel 13.
Fig. 2 is a plan view of the embodiment of Fig. 1 illustrating that the throwing path of the mown grass material indicated in double dash-dot lines extends far into the conveying channel 13 since with this rotor press only very few tines 6 are in engagement. Thus, the grass material directly thrown into the conveying channel 13 will deposit on the lower horizontal separating wall 11 until it is moved by the rotating tines 6 into the conveying channel 13. The extent of the separating wall 11 is shown in dotted lines. The inlet e,dge 12 as a front limiting edge of the essentially horizontally extending separating wall 11 is straight in radial direction; however, it may be curved as well in accordance with the rotational circle of the tips of the tines 6. This ensures that the material thrown onto separating wall 11 and staying there for fractions of a second is safely moved away and does not fall onto the ground. It should be noted that the rotational path of the mowing knives 2 indicated in dash-dot lines extends with little loose below separating wall 11 and inlet edge 12 such that grass possibly adhering to the mowing knives 2 is stripped off from inlet edge 12 and is moved onto separating wall 11.
Figs. 3 and 4 illustrate a modified embodiment of a rotor press 24 in elevational view and the corresponding plan view, respectively, which rotor press 24 is mounted at or, respectively, to, a ma~or part in a housing 21 of a lawn mower 200. As with the first embodiment mowing knives 22 rotate in housing 21 in a horizontal rotational plane. Mown grass is conveyed through rotor press 24 rotating in the rotor chamber 24' into a collecting container 23. The rotor press 24 -6- 20833~
of this embodiment comprises a drum-type rotor 25 having mounted thereon rigid tines 26 which pass through a comb-type strip-off element 37. The central tube of tine rotor 25 is rotated by a horizontally operating belt drive 27 arranged in triangular form such that a drive shaft 38 of the mowing knives 22, the central tube of rotor press 24, and a drive 40 for the rear axle of the lawn mower are simultaneously driven.
As with the first embodiment the rotational path of the mowing knives 22 and the cylindrical rotor chamber 24' of rotor press 24 are separated by an essentially horizontally extending separating wall 31, grass thrown away from the rotating mowing knives 22 enters rotor press 24 and deposits temporarily on separating wall 31 (indicated by dots) before it is further conveyed into a conveying channel 23 by rotating tines 26. An interior peripheral surface of the press or conveying channel 23 is provided with a longitudinal rib 28 permitting the tips of the rotating tines 26 to pass therealong, causing the conveyed grass being further compacted and diminuted.
It should be noted that the rotor chamber 24' of rotor press 24 is divided by the rib 28 into two conveying portions with one tine 26 only provided in the upper portion whilst two tines 26 are provided in the lower portion since inherently more material will be collected in the lower portion on separating wall 31, which material has to be removed faster than that collected in the upper portion.
In order to avoid overloading, an outer wall portion 39 of the conveying channel 33 provided with the rib 28 is connected tangentially to the housing 21 and is slightly pivotable outward about a pivoting axis 30 against the biasing force of a spring 29 (viz. Fig. 4). Similarly, a lower channel wall portion 34 smoothly extending towards the separating wall 11 may be pivotable as well about a pivoting axis 32 extending normal to pivoting axis 30. This adjusts the tapering of conveying channel 33 since container 23 is connected to the lower channel wall portion 34 and is supported by a pressing spring 36. The ~7- 20833~
increasing weight of collecting container 23 being filled acts onto the lower channel wall portion 34 of the conveying channel 33 against the force of pressing spring 36 downward, causes the conveying channel 33 to be widened such that the conveying is lightened.
It should be noted that collecting container 23 may have rigid walls or may be flexibly formed as a bag connected to the exit of the conveying channel 33.
Tine rotors may be of a type having fixed or controlled tines, with the rotor in vertical or horizontal arrangement.
Claims (13)
1. Rotor press for lawn mowers provided with rotating mowing knife means comprising:
tine rotor means peripherally provided with tine means and mounted for rotation in a chamber arranged above a rotational path of said tine rotor means;
conveying channel means arranged downstream of said tine rotor means;
essentially horizontally extending separating wall means arranged between said rotating path of said mowing knife means and said chamber of said tine rotor means; and container means connected to said conveying channel means.
tine rotor means peripherally provided with tine means and mounted for rotation in a chamber arranged above a rotational path of said tine rotor means;
conveying channel means arranged downstream of said tine rotor means;
essentially horizontally extending separating wall means arranged between said rotating path of said mowing knife means and said chamber of said tine rotor means; and container means connected to said conveying channel means.
2. The rotor press of claim 1, wherein said tine rotor means is provided with less than four tines.
3. The rotor press of claim 2, wherein said tine rotor means is provided with one tine only.
4. The rotor press of claim 1, wherein said tine rotor means has tines, the relative position thereof being controllable.
5. The rotor press of claim 1, wherein said tine rotor means is mounted in an upright position within a housing of said lawn mower.
6. The rotor press of claim 1, wherein said tine rotor means is arranged close to a drive shaft of said mowing knife means.
7. The rotor press of claim 1, wherein said separating wall means is provided with an inlet edge extending radially as regards a drive shaft of said mowing knife means.
8. The rotor press of claim 6, wherein said drive shaft of said mowing knife means and said tine rotor means are driven by a common belt drive.
9. The rotor press of claim 1, wherein said conveying channel means are directed at an angle of about 45° essentially to the center of said container means.
10. The rotor press of claim l, wherein said container means is connected to a lower channel wall portion of said conveying channel means and is supported on a pressing spring means.
11. The rotor press of claim l, wherein said conveying channel means is connected -in plan view- tangentially to a housing of said lawn mower, a lower channel wall portion of said conveying channel means smoothly transitioning into said separating wall means.
12. The rotor press of claim 1, wherein an outer wall portion of said conveying channel is supported on a biasing spring means.
13. A lawn mower comprising:
rotatable mowing knife means;
tine rotor means peripherally provided with tine means and mounted for rotation in a chamber arranged above a rotational path of said tine rotor means;
conveying channel means arranged downstream of said tine rotor means;
essentially horizontally extending separating wall means arranged between said rotating path of said mowing knife means and said chamber of said tine rotor means; and container means connected to said conveying channel means.
rotatable mowing knife means;
tine rotor means peripherally provided with tine means and mounted for rotation in a chamber arranged above a rotational path of said tine rotor means;
conveying channel means arranged downstream of said tine rotor means;
essentially horizontally extending separating wall means arranged between said rotating path of said mowing knife means and said chamber of said tine rotor means; and container means connected to said conveying channel means.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4138569.1 | 1991-11-23 | ||
| DE19914138569 DE4138569A1 (en) | 1991-11-23 | 1991-11-23 | Lawn mower rotary press - comprises tined rotor in casing adjacent to cutter and to inclined press channel leading to container |
| DE19924202293 DE4202293A1 (en) | 1992-01-28 | 1992-01-28 | Rotary lawn mower with secondary rotor |
| DEP4202293.2 | 1992-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2083356A1 true CA2083356A1 (en) | 1993-05-24 |
Family
ID=25909432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2083356 Abandoned CA2083356A1 (en) | 1991-11-23 | 1992-11-19 | Lawn mower and rotor press therefor |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0544211A1 (en) |
| CA (1) | CA2083356A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2315656A (en) * | 1996-07-30 | 1998-02-11 | Electrolux Outdoor Prod Ltd | Lawnmower with mulcher |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2882668A (en) * | 1956-11-30 | 1959-04-21 | Frank G Murillo | Lawn-maintenance machine |
| DE1582399A1 (en) * | 1967-10-14 | 1970-07-09 | Leopold Ruess | Mowing machine |
| US4041679A (en) * | 1974-02-01 | 1977-08-16 | Lester H. Seifert | Self-propelled rotary lawn mower |
| EP0013116A1 (en) * | 1978-12-28 | 1980-07-09 | Ransomes Sims & Jefferies, Public Limited Company | Rotary grass mowing machines |
| DE3900969A1 (en) * | 1988-10-19 | 1990-07-19 | Eggenmueller Alfred | METHOD AND DEVICE FOR PRESSING GRASS WITH SMALL EQUIPMENT |
| CA2026682A1 (en) * | 1989-10-10 | 1991-04-11 | Alfred Eggenmueller | Method and apparatus for mulching of grass, leafage, or similar material |
-
1992
- 1992-11-19 CA CA 2083356 patent/CA2083356A1/en not_active Abandoned
- 1992-11-23 EP EP92119927A patent/EP0544211A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0544211A1 (en) | 1993-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |