WO2002001937A1 - Device for maintaining grass fields - Google Patents

Device for maintaining grass fields Download PDF

Info

Publication number
WO2002001937A1
WO2002001937A1 PCT/NL2001/000487 NL0100487W WO0201937A1 WO 2002001937 A1 WO2002001937 A1 WO 2002001937A1 NL 0100487 W NL0100487 W NL 0100487W WO 0201937 A1 WO0201937 A1 WO 0201937A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
support wheel
working attachment
supporting arm
working
Prior art date
Application number
PCT/NL2001/000487
Other languages
French (fr)
Inventor
Marinus Reincke
Original Assignee
Marinus Reincke
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.)
Filing date
Publication date
Application filed by Marinus Reincke filed Critical Marinus Reincke
Priority to US10/312,924 priority Critical patent/US6874307B2/en
Priority to AU2001269619A priority patent/AU2001269619B2/en
Priority to AU6961901A priority patent/AU6961901A/en
Priority to DE60111850T priority patent/DE60111850T2/en
Priority to AT01948137T priority patent/ATE298975T1/en
Priority to CA002414525A priority patent/CA2414525A1/en
Priority to EP01948137A priority patent/EP1307085B1/en
Publication of WO2002001937A1 publication Critical patent/WO2002001937A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B51/00—Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus
    • A01B51/02—Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus propelled by a motor
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D67/00—Undercarriages or frames specially adapted for harvesters or mowers; Mechanisms for adjusting the frame; Platforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D51/00—Motor vehicles characterised by the driver not being seated
    • B62D51/04—Motor vehicles characterised by the driver not being seated the driver walking

Definitions

  • the invention relates to a device for maintaining grass fields, further referred to as lawns, wherein, as seen in the direction of travel, no support wheels which first rest on the surface for working are placed in the projected working surface for an exchangeable working attachment which can be fixedly coupled to the frame.
  • a lawn requires many diverse maintenance operations. In addition to mowing in the horizontal plane, mowing in the vertical plane, cutting edges, adding fertilizer, removing leaves and so on can be envisaged here.
  • Maintenance machines are known for all these operations. It is sometimes possible to perform a plurality of operations with one basic device, because these devices have exchangeable attachments.
  • the device particularly the working attachment
  • the position of the support wheels is essential herein.
  • These support wheels serve to hold the device in balance and support it such that the working takes place optimally even in the case of uneven lawns.
  • Known machines therefore usually have a plurality of support wheels.
  • An optimal support is obtained by three support wheels, although more support wheels are often added so as to enable better following of an uneven surface.
  • one or more support wheels are positioned in the projected working surface in front of the working attachment. This has great drawbacks, for instance when grass is mown in the horizontal plane. This is because the grass in front of the working attachment is first flattened by a support wheel, whereafter the mowing attachment can no longer mow this strip. After a time this strip will recover, thereby resulting in an unevenly mown, irregular grass field.
  • the present invention has for its object to provide an improved support for the support wheels, wherein the above stated drawbacks are obviated.
  • a support wheel is herein preferably connected to the frame with a supporting arm on one side adjacently of the fixedly mountable working attacliment, wherein the position is determined such that the whole device, including a fixedly connected exchangeable working attachment, does not tilt.
  • the support wheel adjacently of the working attachment can be fixedly or pivotally connected to the supporting arm. If it is connected pivotally, the whole device can be passively steered by exerting a lateral force on the steering handle of the device, whereby the support wheel will pivot.
  • the support wheel adjacently of the working attachment is made actively steerable.
  • the support wheel pivotable in the horizontal plane can be connected for this purpose to the likewise pivotable steering handle by means of a rod system.
  • the device can hereby be actively steered during working of the lawn and transport, without the character of the support being changed.
  • the support wheel adjacently of the working attachment is connected to the frame by means of a supporting arm. If this supporting arm is mounted on the frame for rotation in the vertical plane, the position of the frame relative to the supporting arm can be changed using a length-adjustable guide arm. If the position of the frame changes, the distance of the mounted working attachment relative to the support surface will also change.
  • the frame By herein mounting a catch on the frame with a hook-in element on the supporting arm, the frame can be fixedly connected in raised position to the supporting arm. This is a great advantage if it is desired to lock the frame with working attachment in transport position.
  • the working attachment is hereby held clear of the underlying support surface on which the support wheels rest. Since the device has only one support wheel adjacently of the exchangeable attachment, the exchangeable working attachment can protrude outside the frame on the opposite side of the support wheel. Obstacles such as support wheels and the like are after all not situated there.
  • working attachments can be mounted. These working attachments are centred by means of dowel pins. If working attachments have to be driven, they can be connected to the power take- offs, which can be coupled.
  • Fig. 1 shows a perspective view of the device without a mounted working attachment.
  • Fig. 2 shows a top view of the device, once again without a working attachment.
  • Fig. 3 is a side view on the side of the adjacent support wheel next to the working attachment.
  • Fig. 4 is a side view as in fig. 3, but now with the device locked in transport position.
  • Fig. 5 shows a perspective view as in fig. 1, but now provided with a fixedly mounted exchangeable working attachment.
  • Fig. 1 shows a maintenance machine for lawns, comprising a frame 1 under which are mounted support wheels 2. These support wheels can be driven from gearbox 9. This drive can be coupled by means of control lever 14.
  • a subsequent support wheel 7 is situated adjacently of the projected working surface 15.
  • Support wheel 7 is connected to supporting arm 8 by means of a pivotable arm 6.
  • Steering handle 11 is connected pivotally on its longitudinal axis to frame 1. Via rod system 4 the support wheel 7 is actively steered by steering handle 11.
  • a number of power take-offs 5 are arranged in gearbox 9. These power take-offs can be coupled to drive motor 10 by means of control lever 12.
  • Centring pins 3 are further arranged so that exchangeable working attachments can be mounted quickly and, if necessary, driven by means of one of the power take-offs 5.
  • Fig. 2 further shows that support wheel 7 can be actively steered by steering handle 11. If the steering handle is pivoted through an angle R, support wheel 7 will pivot through an angle Rl via rod system 4. Pivoting of the steering handle through an angle L produces a deflection of LI of support wheel 7.
  • Fig. 3 shows a side view of support wheel 7, mounted on supporting ann 8 via a pivot arm 6.
  • This supporting arm is further mounted on frame 1 for pivoting in the vertical plane by means of a pin 32.
  • a length-adjustable guide arm 31 is then arranged which allows frame 1 to support on the supporting arm via point 33, by means of adjusting knob 30.
  • distance H will change.
  • the distance H has a direct relation to the distance above the support surface 34 of a working attachment for mounting.
  • the supporting arm can be locked in transport position using catch 42 and hook-in element 41.
  • Catch 42 is operated by a control lever (not further shown) on the steering handle.
  • the distance HI is essentially greater than H in fig. 3.
  • the working attachment is now therefore held well above support surface 34, whereby transport can take place in simple manner.
  • the geometry of rod assembly 4 is designed such that steering by means of steering handle 11, as shown in fig. 2, is also possible in the transport position of fig. 4.
  • Fig. 5 finally shows how a possible working attachment can be fixedly connected to the device in front of the frame and adjacently of support wheel 7 by means of the dowel pins 3, which are not all visible, and the locking which is not further shown.
  • the driven working attachment 50 is a mowing device for mowing grass in the horizontal plane.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental Sciences (AREA)
  • Soil Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Harvester Elements (AREA)
  • Soil Working Implements (AREA)
  • Nonmetallic Welding Materials (AREA)

Abstract

The invention relates to a device for maintaining grass fields, provided with a frame (1) movable along a ground surface, supporting on one or more support wheels (2), a gearbox with power take-offs (5), a steering handle (11), a drive motor (10), and with exchangeable working attachments which can be fixedly connected to the device and another support wheel (7) on one side adjacently of this working attachment which can be connected fixedly, pivotally or for active steering to the frame with a supporting arm (8) which is adjustable in position and lockable.

Description

DEVICE FOR MAINTAINING GRASS FIELDS
The invention relates to a device for maintaining grass fields, further referred to as lawns, wherein, as seen in the direction of travel, no support wheels which first rest on the surface for working are placed in the projected working surface for an exchangeable working attachment which can be fixedly coupled to the frame. A lawn requires many diverse maintenance operations. In addition to mowing in the horizontal plane, mowing in the vertical plane, cutting edges, adding fertilizer, removing leaves and so on can be envisaged here.
Maintenance machines are known for all these operations. It is sometimes possible to perform a plurality of operations with one basic device, because these devices have exchangeable attachments.
For an optimal level working it is of great importance that the device, particularly the working attachment, is held at a fixed, stable, adjustable height above the surface for working. The position of the support wheels is essential herein. These support wheels serve to hold the device in balance and support it such that the working takes place optimally even in the case of uneven lawns. Known machines therefore usually have a plurality of support wheels. An optimal support is obtained by three support wheels, although more support wheels are often added so as to enable better following of an uneven surface. It is often unavoidable herein that one or more support wheels are positioned in the projected working surface in front of the working attachment. This has great drawbacks, for instance when grass is mown in the horizontal plane. This is because the grass in front of the working attachment is first flattened by a support wheel, whereafter the mowing attachment can no longer mow this strip. After a time this strip will recover, thereby resulting in an unevenly mown, irregular grass field.
Devices are also known with a support wheel on both sides adjacently of the working attachment. These support wheels then lie adjacently of the projected working surface in front of the working attachment. The grass is then not flattened directly, but indirectly. If a support wheel is positioned adjacently of the working attachment on both sides of the working attachment, one of the two will then always rest on the as yet unworked lawn. Nor is it then possible to work close to lawn edges or obstacles, since a support wheel supports adjacently of the working attachment.
The present invention has for its object to provide an improved support for the support wheels, wherein the above stated drawbacks are obviated.
The invention provides for this purpose a device according to claim 1. A support wheel is herein preferably connected to the frame with a supporting arm on one side adjacently of the fixedly mountable working attacliment, wherein the position is determined such that the whole device, including a fixedly connected exchangeable working attachment, does not tilt.
The support wheel adjacently of the working attachment can be fixedly or pivotally connected to the supporting arm. If it is connected pivotally, the whole device can be passively steered by exerting a lateral force on the steering handle of the device, whereby the support wheel will pivot.
An improved steering is obtained if the support wheel adjacently of the working attachment is made actively steerable. The support wheel pivotable in the horizontal plane can be connected for this purpose to the likewise pivotable steering handle by means of a rod system. By now pivoting the steering handle the support wheel adjacently of the working attachment will pivot to the same degree. The device can hereby be actively steered during working of the lawn and transport, without the character of the support being changed. The support wheel adjacently of the working attachment is connected to the frame by means of a supporting arm. If this supporting arm is mounted on the frame for rotation in the vertical plane, the position of the frame relative to the supporting arm can be changed using a length-adjustable guide arm. If the position of the frame changes, the distance of the mounted working attachment relative to the support surface will also change. By herein mounting a catch on the frame with a hook-in element on the supporting arm, the frame can be fixedly connected in raised position to the supporting arm. This is a great advantage if it is desired to lock the frame with working attachment in transport position. The working attachment is hereby held clear of the underlying support surface on which the support wheels rest. Since the device has only one support wheel adjacently of the exchangeable attachment, the exchangeable working attachment can protrude outside the frame on the opposite side of the support wheel. Obstacles such as support wheels and the like are after all not situated there.
Because the space in front of the frame and adjacently of the support wheel adjoining the surface for working is further free of any obstacles, diverse working attachments can be mounted. These working attachments are centred by means of dowel pins. If working attachments have to be driven, they can be connected to the power take- offs, which can be coupled.
The present invention will be further elucidated on the basis of the non-limitative embodiment shown in the following figures. Herein:
Fig. 1 shows a perspective view of the device without a mounted working attachment.
Fig. 2 shows a top view of the device, once again without a working attachment.
Fig. 3 is a side view on the side of the adjacent support wheel next to the working attachment.
Fig. 4 is a side view as in fig. 3, but now with the device locked in transport position.
Fig. 5 shows a perspective view as in fig. 1, but now provided with a fixedly mounted exchangeable working attachment. Fig. 1 shows a maintenance machine for lawns, comprising a frame 1 under which are mounted support wheels 2. These support wheels can be driven from gearbox 9. This drive can be coupled by means of control lever 14. A subsequent support wheel 7 is situated adjacently of the projected working surface 15. Support wheel 7 is connected to supporting arm 8 by means of a pivotable arm 6. Steering handle 11 is connected pivotally on its longitudinal axis to frame 1. Via rod system 4 the support wheel 7 is actively steered by steering handle 11. A number of power take-offs 5 are arranged in gearbox 9. These power take-offs can be coupled to drive motor 10 by means of control lever 12. Centring pins 3 are further arranged so that exchangeable working attachments can be mounted quickly and, if necessary, driven by means of one of the power take-offs 5.
Fig. 2 further shows that support wheel 7 can be actively steered by steering handle 11. If the steering handle is pivoted through an angle R, support wheel 7 will pivot through an angle Rl via rod system 4. Pivoting of the steering handle through an angle L produces a deflection of LI of support wheel 7.
Fig. 3 shows a side view of support wheel 7, mounted on supporting ann 8 via a pivot arm 6. This supporting arm is further mounted on frame 1 for pivoting in the vertical plane by means of a pin 32. A length-adjustable guide arm 31 is then arranged which allows frame 1 to support on the supporting arm via point 33, by means of adjusting knob 30. By now altering the length of the guide arm by means of 30, distance H will change. The distance H has a direct relation to the distance above the support surface 34 of a working attachment for mounting. In fig. 4 is shown that the supporting arm can be locked in transport position using catch 42 and hook-in element 41. Catch 42 is operated by a control lever (not further shown) on the steering handle. The distance HI is essentially greater than H in fig. 3. The working attachment is now therefore held well above support surface 34, whereby transport can take place in simple manner. The geometry of rod assembly 4 is designed such that steering by means of steering handle 11, as shown in fig. 2, is also possible in the transport position of fig. 4.
Fig. 5 finally shows how a possible working attachment can be fixedly connected to the device in front of the frame and adjacently of support wheel 7 by means of the dowel pins 3, which are not all visible, and the locking which is not further shown. The driven working attachment 50 is a mowing device for mowing grass in the horizontal plane.

Claims

1. Device for maintaining grass fields, further referred to as lawns, comprising: - a frame movable along a ground surface,
- one or more support wheels under this frame,
- a gearbox with connectable power take-offs protruding forward as seen in the travel direction,
- a steering handle connected to the frame, - a drive motor,
- an exchangeable working attachment fixedly mountable on the front part of the frame as seen in the travel direction,
- a support wheel on one side adjacently of the working attachment, wherein the support wheel is connected by means of a supporting arm to the frame on one side adjacently of the exchangeable working attachment such that the whole device, including a working attachment, does not tilt.
2. Lawn maintaining device as claimed in claim 1, wherein the support wheel adjacently of the working attachment is pivotally connected to the supporting arm.
3. Lawn maintaining device as claimed in claim 1 or 2, wherein the support wheel adjacently of the working attachment is actively steerable.
4. Lawn maintaining device as claimed in claim 1, 2 or 3, wherein the support wheel can be actively steered by the steering handle.
5. Lawn maintaining device as claimed in any of the foregoing claims, wherein the supporting arm is connected to the frame for pivoting in the vertical plane.
6. Lawn maintaining device as claimed in claim 5, wherein the supporting arm rotatable in the vertical plane is connected to the frame with a length-adjustable guide arm, whereby the position of the supporting arm can be changed.
7. Lawn maintaining device as claimed in claim 5 or 6, wherein the frame can be fixedly connected to the supporting arm in raised position to lock the device with working attachment in transport position.
8. Lawn maintaining device as claimed in any of the foregoing claims, wherein the space in front of the frame as seen in travel direction, and opposite the support wheel placed adjacently of the exchangeable working attachment for mounting, is free of any obstacles of the frame.
9. Lawn maintaining device as claimed in any of the foregoing claims, wherein the exchangeable working attachment can protrude outside the frame on the opposite side of the support wheel connected to the supporting arm.
10. Lawn maintaining device as claimed in any of the foregoing claims, wherein different working attachments can be connected to the gearbox by means of dowel pins and a locking device.
11. Lawn maintaining device as claimed in any of the foregoing claims, wherein the individually mountable working attachments are drivable by means of one or more power take-offs.
PCT/NL2001/000487 2000-07-05 2001-06-28 Device for maintaining grass fields WO2002001937A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US10/312,924 US6874307B2 (en) 2000-07-05 2001-06-28 Device for maintaining grass fields
AU2001269619A AU2001269619B2 (en) 2000-07-05 2001-06-28 Device for maintaining grass fields
AU6961901A AU6961901A (en) 2000-07-05 2001-06-28 Device for maintaining grass fields
DE60111850T DE60111850T2 (en) 2000-07-05 2001-06-28 DEVICE FOR MAINTAINING LAWN
AT01948137T ATE298975T1 (en) 2000-07-05 2001-06-28 DEVICE FOR MAINTAINING LAWNS
CA002414525A CA2414525A1 (en) 2000-07-05 2001-06-28 Device for maintaining grass fields
EP01948137A EP1307085B1 (en) 2000-07-05 2001-06-28 Device for maintaining grass fields

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1015621 2000-07-05
NL1015621A NL1015621C2 (en) 2000-07-05 2000-07-05 Device for maintaining lawns.

Publications (1)

Publication Number Publication Date
WO2002001937A1 true WO2002001937A1 (en) 2002-01-10

Family

ID=19771669

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2001/000487 WO2002001937A1 (en) 2000-07-05 2001-06-28 Device for maintaining grass fields

Country Status (8)

Country Link
US (1) US6874307B2 (en)
EP (1) EP1307085B1 (en)
AT (1) ATE298975T1 (en)
AU (2) AU2001269619B2 (en)
CA (1) CA2414525A1 (en)
DE (1) DE60111850T2 (en)
NL (1) NL1015621C2 (en)
WO (1) WO2002001937A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3369299A1 (en) * 2017-03-03 2018-09-05 Guy Dehondt Self-propelled multi-purpose agricultural machine for maintaining road shoulders and edges

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9098826B2 (en) * 2004-09-30 2015-08-04 The Invention Science Fund I, Llc Enhanced user assistance
US7604066B2 (en) 2008-03-24 2009-10-20 Agri-Fab, Inc. Multipurpose rear grooming assembly for a vehicle and method of storage of multiple grooming assemblies therewith
US8511417B2 (en) * 2008-11-18 2013-08-20 Ted H. CORRIHER Braking system for front caster wheels of a self-propelled vehicle
US9961829B2 (en) 2015-06-05 2018-05-08 Mtd Products Inc Walk-behind mower with steering wheel control

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US2509993A (en) * 1947-08-05 1950-05-30 Soss Mark Convertible automotive mower
FR991839A (en) * 1949-05-20 1951-10-10 Tractor
US2860718A (en) * 1956-02-29 1958-11-18 Sears Roebuck & Co Coupling and clutching means for power and traction devices and implements
FR1378078A (en) * 1963-08-07 1964-11-13 Multipurpose transformable farm tractor
US3267654A (en) * 1964-09-04 1966-08-23 Yard Man Inc Front mounting for reel type mower
DE2016512A1 (en) * 1970-04-07 1971-10-28 Iruswerke Dusslingen J. Rilling & Söhne, Maschinenfabrik, 7407 Dusslingen Self-propelled garden cultivator
DE2017981A1 (en) * 1970-04-15 1971-10-28 Reinfurt, Eugen, 8700 Würzburg Combined snow blower
DE2405025A1 (en) * 1974-02-02 1975-08-14 Heinze Fa R Motor-driven garden-machine - preferably with wheels or rollers to which various tools can be attached
GB2326580A (en) * 1997-06-26 1998-12-30 Sisis Equip Manually-guided machine with changeable tools

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US3177639A (en) * 1963-06-24 1965-04-13 Eldred V Hardee Rotary mower with an aligned and an offset mast-type hitch
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509993A (en) * 1947-08-05 1950-05-30 Soss Mark Convertible automotive mower
FR991839A (en) * 1949-05-20 1951-10-10 Tractor
US2860718A (en) * 1956-02-29 1958-11-18 Sears Roebuck & Co Coupling and clutching means for power and traction devices and implements
FR1378078A (en) * 1963-08-07 1964-11-13 Multipurpose transformable farm tractor
US3267654A (en) * 1964-09-04 1966-08-23 Yard Man Inc Front mounting for reel type mower
DE2016512A1 (en) * 1970-04-07 1971-10-28 Iruswerke Dusslingen J. Rilling & Söhne, Maschinenfabrik, 7407 Dusslingen Self-propelled garden cultivator
DE2017981A1 (en) * 1970-04-15 1971-10-28 Reinfurt, Eugen, 8700 Würzburg Combined snow blower
DE2405025A1 (en) * 1974-02-02 1975-08-14 Heinze Fa R Motor-driven garden-machine - preferably with wheels or rollers to which various tools can be attached
GB2326580A (en) * 1997-06-26 1998-12-30 Sisis Equip Manually-guided machine with changeable tools

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3369299A1 (en) * 2017-03-03 2018-09-05 Guy Dehondt Self-propelled multi-purpose agricultural machine for maintaining road shoulders and edges
FR3063417A1 (en) * 2017-03-03 2018-09-07 Guy Dehondt AGRICULTURAL ENGINE AUTOMOTIVE CARRIER FOR THE MAINTENANCE OF ACCOTEMENTS AND TRAFFIC TRACK

Also Published As

Publication number Publication date
AU6961901A (en) 2002-01-14
AU2001269619B2 (en) 2004-11-04
DE60111850T2 (en) 2006-04-20
NL1015621C2 (en) 2002-01-08
US20040020179A1 (en) 2004-02-05
CA2414525A1 (en) 2002-01-10
EP1307085A1 (en) 2003-05-07
US6874307B2 (en) 2005-04-05
DE60111850D1 (en) 2005-08-11
EP1307085B1 (en) 2005-07-06
ATE298975T1 (en) 2005-07-15

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