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WO1996020584A1 - Dispositif de fauchage et de paillage - Google Patents

Dispositif de fauchage et de paillage Download PDF

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Publication number
WO1996020584A1
WO1996020584A1 PCT/DE1995/001832 DE9501832W WO9620584A1 WO 1996020584 A1 WO1996020584 A1 WO 1996020584A1 DE 9501832 W DE9501832 W DE 9501832W WO 9620584 A1 WO9620584 A1 WO 9620584A1
Authority
WO
WIPO (PCT)
Prior art keywords
mower
mowing
wall
housing
blades
Prior art date
Application number
PCT/DE1995/001832
Other languages
German (de)
English (en)
Inventor
Georg Wiedenmann
Original Assignee
Wiedenmann Gmbh
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
Priority claimed from DE9420889U external-priority patent/DE9420889U1/de
Application filed by Wiedenmann Gmbh filed Critical Wiedenmann Gmbh
Priority to AT95942031T priority Critical patent/ATE199809T1/de
Priority to US08/700,545 priority patent/US5791132A/en
Priority to EP95942031A priority patent/EP0748154B1/fr
Priority to DE59509114T priority patent/DE59509114D1/de
Publication of WO1996020584A1 publication Critical patent/WO1996020584A1/fr

Links

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

Definitions

  • the invention relates to a mower with at least one sickle blade driven to rotate about an approximately vertical axis - preferably with two mowing blades arranged symmetrically to the axis, preferably several, in particular three such rotary mowers rotating about parallel axes, in a mower housing with in the rear direction (in the direction of travel backwards) ) the crop is ejected.
  • Mowers of this type are known in various versions. However, there is a need not only to cut the crop, but also to further shred it, because the resulting mulch is favorable for fertilizing the soil. This means that the mown material in this shredded preparation can no longer be removed from the cut lawn floor, but can be left in this shredded form in an ecologically favorable manner. This not only saves the disposal of the cut goods, the shredded goods even serve to prepare the soil in this mulchable form.
  • the invention is therefore based on the object of designing a mower of the type mentioned at the outset in such a way that a mulchable product is created from the cut material.
  • This object is achieved in that the or the cutting blades are surrounded by a wall in the discharge direction.
  • the wall is adjustable in one or more parts perpendicular to the plane of the soil to be worked; in particular, the wall is formed in two parts, namely in such a way that a wall part closer to the ground to be worked can be adjusted relative to a base part fixed to the mower housing, preferably by means of elongated holes directed perpendicular to the ground and screw connections penetrating them.
  • the blades of the mowing blade are preferably at least partially bent "upwards" in such a way that there is a draft that raises the material to be mowed, i.e. a flow in the direction approximately perpendicular to the plane of the material to be mowed. Under this influence, the mown crop is moved upward beyond the mowing plane of the cutting blade.
  • a diverting device is provided in the preferred embodiment with a plurality of cutting blades at the transition from one cutting blade to the other, in such a way that the mowed crop towards the ground, i.e. is passed into the area of the neighboring mowing blade.
  • This deflecting device is preferably designed as a roof-shaped bulge directed towards the ground, in particular as a sheet metal part in the transition area between one and the adjacent mowing blade, with a triangular cross-section attached to the upper boundary of the mower housing.
  • Figure 1 a top view of a mower with three mowing blades seen from the bottom of the crop to be mowed;
  • FIG. 2 shows a sectional view through a device in accordance with FIG. 1
  • Figure 3 a partial view along the line III-III in Figure 1 schematized
  • a housing 1 which is indicated schematically in the bottom view of the exemplary embodiment seen from the bottom, there are three mowing tools 2, each of which has a pair of knives 4 which can be driven to rotate about a vertical axis 3.
  • Devices of this type are generally known.
  • corner regions 5 the knives are provided with upwardly-directed angled portions 6, directed upwards a ge ⁇ ⁇ cause draft.
  • the mowing device shown is designed, for example, as a front device, in particular a parallel linkage arrangement on a tractor or the like is arranged via a lever linkage and runs with support wheels 7 on the ground to be mowed.
  • the three cutter blades 4 are framed by front walls 8 and rear walls 9. The latter prevent the clippings cut by the blades 4 - knives - from escaping directly through the dynamic ejection movement of the knives into the rear area of the mower; rather, this immediate exit is prevented by the rear walls 9 and it is ensured that the cut material undergoes a repeated shredding process is exposed, be it by the cutting pair of knives 4 themselves or by the neighboring pair of knives 4.
  • a diverter device which moves the path of the cut material guided downwards from the plane of rotation above the knives 4 of the mowing tool so that, particularly when changing from one mower blade (pair of mowers 4) to the next, the material cut by the first pair of knives 4 enters the orbit of the neighboring pair of knives 4. In this way it is ensured that no blockages occur and that the cut material is actually further shredded by the neighboring tool.
  • the rear walls 9 prevent the clippings from escaping this further shredding process. On the other hand, it is ensured by the distance from the ground of the material to be mowed that the cut and then further shredded - chopped - material comes back to the ground, so that the fertilizing effect of this finely chopped material - mulching - comes back.
  • the rear wall 9 can be changed with respect to the distance from the floor, in particular in that a wall part facing the floor is designed to be height-adjustable relative to a base part fixed to the housing.
  • a wall part facing the floor is designed to be height-adjustable relative to a base part fixed to the housing.
  • the entire rear wall 9 can optionally be installed and removed, so that both the mulching process described above and a normal mowing process with rear discharge can be set without subsequent comminution of the mowing material.
  • the deflection of the mowing material required by the unwinding of the pairs of mowing blades 4 during the buoyancy movement is in a particularly preferred embodiment.
  • This transfer 10 is preferably provided as a roof-shaped sheet metal, which is arranged in the upper delimitation area of the housing areas delimiting the pairs of knives 4, as shown in FIGS. 1 and 3.
  • This transition 10 does not have to be roof-shaped, it could also have the shape of a ramp.
  • this rectangular transfer plate 10 with diagonally opposite corner regions is connected into the housing walls 8, 9 encompassing the pairs of blades 4, as shown in FIG. 1.
  • each pair of knives 4 is driven by a belt 15 which acts on a pulley 16 which is arranged in a rotationally fixed manner at the end of the vertical axis 3 and which is opposite the pair of knives 4.
  • the rear wall 9 is formed in two parts.
  • the rear wall 9 consists of a first element 17 which is L-shaped in cross section and a second element 18 which adjoins the L-shaped element 17 and which is rectangular in cross section.
  • the element 18 is fastened to the L-shaped element 17 with a plurality of screw connections 19 in such a way that after loosening the screw connections 19 the element 18 can be moved relative to the L-shaped element 17. In this way, the distance between the rear wall 9 and the floor can be set.
  • the L-shaped element 17 is arranged on the mower housing 1 via screw connections 29, the shorter leg of the L-shaped element 17 abutting a plate-shaped component of the housing 1.
  • FIG. 3 shows the configuration of the transfer line 10 between two adjacent pairs of mower blades 4.
  • the roof-shaped plate 22 can be seen, which extends into the interior of the transfer line 10, the vertex 23 being essentially at the same distance from the two vertical limits of the transition 10, namely the rear wall 9 and the front wall 8 is arranged. It should be pointed out here that it is the rear wall 9 of the first pair of mower blades and the side wall of the second pair of mower blades 4 which are adjacent to it.
  • the roof-shaped plate 22 is welded to a cover plate 24 of the housing 1.
  • the rear wall 9 and the front wall 8 of the pairs of mowing blades 4 are fastened to this cover plate 24.
  • a hole is arranged in the cover plate 24 for each pair of knives 4, through which the vertical axes 3 of the pairs of mowing knives 4 run.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

L'invention concerne un dispositif de fauchage qui comprend au moins une lame de fauchage (4) actionnée de manière à tourner autour d'un pivot (3) approximativement vertical, de préférence au moins deux couteaux (6) montés de manière symétrique par rapport au pivot, de préférence plusieurs et notamment trois lames de fauchage (4) qui tournent chacune autour de pivots (3) parallèles. La(les) lame(s) de fauchage est(sont) montée(s) dans un carter (1) et le produit fauché est éjecté vers l'arrière (par rapport au sens de la marche). Afin que ce type de faucheuse permette d'obtenir un produit de paillage à partir du produit fauché, il est prévu que la(les) lame(s) de fauchage (4) soi(en)t bordé(es) par une paroi (8, 9) dans le sens d'éjection.
PCT/DE1995/001832 1994-12-29 1995-12-21 Dispositif de fauchage et de paillage WO1996020584A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT95942031T ATE199809T1 (de) 1994-12-29 1995-12-21 Mäh- und mulchgerät
US08/700,545 US5791132A (en) 1994-12-29 1995-12-21 Mulching mower
EP95942031A EP0748154B1 (fr) 1994-12-29 1995-12-21 Dispositif de fauchage et de paillage
DE59509114T DE59509114D1 (de) 1994-12-29 1995-12-21 Mäh- und mulchgerät

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9420889U DE9420889U1 (de) 1994-11-30 1994-12-29 Mähgerät
DEG9420889.1U 1994-12-29
EP95118886 1995-11-30

Publications (1)

Publication Number Publication Date
WO1996020584A1 true WO1996020584A1 (fr) 1996-07-11

Family

ID=25962779

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1995/001832 WO1996020584A1 (fr) 1994-12-29 1995-12-21 Dispositif de fauchage et de paillage

Country Status (1)

Country Link
WO (1) WO1996020584A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1186221A1 (fr) * 2000-09-09 2002-03-13 Roberine BV Faucheuse à déflecteur
US6862874B2 (en) 2002-04-22 2005-03-08 Deere & Company Discharge stopper units for mower decks

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663984A (en) * 1952-04-30 1953-12-29 Kenneth R Clark Leaf pulverizer for rotary type lawn mowers
US4205512A (en) * 1978-08-04 1980-06-03 The Toro Company Rotary mulching mower
US4226074A (en) * 1979-01-08 1980-10-07 Excel Industries, Inc. Lawnmower deck
US4890446A (en) * 1989-01-25 1990-01-02 Israel Bert L Mulching attachment for lawn mowers
WO1992002121A1 (fr) * 1990-07-27 1992-02-20 The Toro Company Tondeuse-broyeuse a lames multiples
US5205112A (en) * 1992-03-20 1993-04-27 The Toro Company Multi-bladed mulching/bagging mower
US5212938A (en) * 1991-11-27 1993-05-25 The Toro Company Mulching mower with obround cutting chamber
US5267429A (en) * 1992-07-21 1993-12-07 Deere & Company Rear discharge mulching apparatus
EP0642730A1 (fr) * 1993-09-15 1995-03-15 Deere & Company Faucheuse à châssis ouvert vers le bas

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663984A (en) * 1952-04-30 1953-12-29 Kenneth R Clark Leaf pulverizer for rotary type lawn mowers
US4205512A (en) * 1978-08-04 1980-06-03 The Toro Company Rotary mulching mower
US4226074A (en) * 1979-01-08 1980-10-07 Excel Industries, Inc. Lawnmower deck
US4890446A (en) * 1989-01-25 1990-01-02 Israel Bert L Mulching attachment for lawn mowers
WO1992002121A1 (fr) * 1990-07-27 1992-02-20 The Toro Company Tondeuse-broyeuse a lames multiples
US5212938A (en) * 1991-11-27 1993-05-25 The Toro Company Mulching mower with obround cutting chamber
US5205112A (en) * 1992-03-20 1993-04-27 The Toro Company Multi-bladed mulching/bagging mower
US5267429A (en) * 1992-07-21 1993-12-07 Deere & Company Rear discharge mulching apparatus
EP0642730A1 (fr) * 1993-09-15 1995-03-15 Deere & Company Faucheuse à châssis ouvert vers le bas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1186221A1 (fr) * 2000-09-09 2002-03-13 Roberine BV Faucheuse à déflecteur
US6681553B2 (en) 2000-09-09 2004-01-27 Deere & Company Mower cutting chamber
US6862874B2 (en) 2002-04-22 2005-03-08 Deere & Company Discharge stopper units for mower decks

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