JP2010011796A - Mower such as flail mower - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that there is trouble wherein only a row in the initial first step is trodden down with a tire, a crawler etc., of a traveling machine to bring about a lodged state and perform no normal mowing operation when a mower is installed in a lateral side position of the traveling machine. <P>SOLUTION: The mower such as the flail mower is mounted on the traveling machine T to perform the mowing operation. In the mower such as the flail mower, forward mowing operation performed while advancing the traveling machine T in a position where a mowing operation part 1 is offset to the lateral side of the traveling machine; and backing mowing operation performed while backing the traveling machine T by locating the mowing operation part 1 at the rear of the traveling machine T can be selected. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a grass cutting device such as a flare mower or a disk mower that is attached to a traveling machine such as a tractor and pulverizes while cutting grass in a field or the like.

  The flare mower is attached to the rear part of the tractor and pulled while being rotated by the power of the tractor. The cutting blades are used to cut the grass in the field and crush the cut grass at the same time.

  Also, as a disk mower having a similar effect to the flare mower, JP-A-53-27523 (Prior Art 1) discloses that “a plurality of rotating disks having cutters are provided on the cutter bar at predetermined intervals in the horizontal direction, In the disk mower provided with a grass collecting member at the outer end of the cutter bar, the two rotating disks on the outer end side are configured to rotate so that the cut grass moves away from the grass collecting member. Is described.

  Furthermore, Japanese Utility Model Laid-Open No. 58-192513 (Prior Art 2) discloses "Agricultural Tractor Mid-Mount Working Machine Mounting Device" as "Agricultural Tractor Mid-Working Machine Installation Device". The top and bottom cover of the work equipment closer to the tractor can be pivoted up and down by a link device projecting from below the agricultural tractor. A guide roller that protrudes in contact with the tractor and prevents the portion closer to the tractor of the work machine from moving further upward is configured to be stored in an inclined state when the work machine is rotated up and down. "Agricultural tractor mid-mount work machine mounting device" is described.

Further, Japanese Patent Laid-Open No. 6-165606 (conventional technology 3) discloses that a working machine body for cutting grass, plowing, etc., which has a lower body height than the traveling vehicle body, is disposed laterally on the traveling vehicle body. There is a description of an orchard cultivator characterized by being attached via a protrusion adjustment mechanism that can adjust the protrusion degree, and as an example, `` a tractor is used as the traveling vehicle body a and mowing is behind the traveling vehicle body a '' A frame 2 equipped with a hydraulic device for medium tillage work is attached, and the side of the work machine body b, which has a lower body height than the traveling vehicle body a and allows four free wheels 3 to be suspended, is set to the side. An orchard cultivator attached via a protrusion adjustment mechanism 1 capable of adjusting the protrusion degree of the "orchard" is disclosed.
JP 53-27523 A (Prior Art 1) Japanese Utility Model Publication No. 58-192513 (prior art 2) JP-A-6-165606 (Prior Art 3)

  Generally, a mowing apparatus such as a flare mower is located behind the traveling machine and performs the mowing work while moving forward by the forward traveling of the traveling machine. The traveling machine travels with a tire or a crawler. Therefore, the grass that the mowing device tries to mow has a portion that has been crushed by a tire of a traveling machine, a crawler, etc., and the grass in that portion is in a lying state, so the mowing work is not performed normally There was a bug.

  Therefore, there is also known an apparatus that performs a cutting operation by moving a traveling machine forward by positioning the mowing apparatus on the side of the traveling machine, such as the apparatuses described in the prior arts 1 to 3.

  The mowing device disclosed in the prior art 1 is a “disc mower” that is offset to the lateral position of the traveling machine, and the disc mower remains in the lateral position and does not move during work. Also, the work machine of the “Agricultural Tractor Mid-Mount Work Machine Mounting Device” of Prior Art 2 is provided with three mowers at three positions on the left, right and rear of the traveling machine, and is projected in the horizontal direction. It is the structure which moves to a working device up and down with a vertical rotation axis | shaft. Furthermore, the orchard cultivator according to the prior art 3 has a working machine body that performs mowing, plowing, and the like on the side, and the degree of protrusion to the side can be adjusted.

  However, the mowing operation of the field is a parallel operation in which the traveling machine cuts one row by one forward traveling in the field (1 step), and then the adjacent row is sequentially mowed. In the grass cutting device provided in the above, there was a problem that only the first row of the first step was crushed by a tire of a traveling machine, a crawler, or the like.

In order to solve the above problems, in a mowing apparatus such as a flare mower that is mounted on a traveling machine and performs mowing work,
Advance mowing work performed while moving the traveling machine forward at a position where the mowing work part is offset to the side of the traveling machine,
A grass mowing apparatus such as a flail mower is proposed, in which a mowing work unit is positioned behind the traveling machine and a reverse mowing work performed while the traveling machine is moved backward is selectable.

  Further, the mowing unit turns 180 degrees around the horizontal rotation shaft whose axial direction is vertical from the position offset to the side of the traveling machine and is reversed to the rear position of the traveling machine. We propose mowing equipment such as flare mowers described in the column.

  Furthermore, in the forward mowing work that is performed while the traveling machine advances the traveling machine at a position that is offset to the side of the traveling machine, the cutting work part is inclined in the vertical direction with respect to the traveling machine so as to correspond to the slope field. Thus, a mowing apparatus such as a flare mower described in the 0010 column or the 0011 column capable of performing the mowing work is proposed.

  According to the present invention, the forward mowing work is performed while the traveling machine is moved forward at the position where the mowing working part is offset to the side of the traveling machine, and the traveling machine is moved backward by positioning the mowing working part behind the traveling machine. Therefore, the first row of the first step in the field is not crushed by the tires or crawlers of the traveling machine by the backward mowing work performed while the traveling machine is moved backward. There is an effect that the removal state is performed very uniformly.

  Furthermore, the invention according to claim 3 has an effect of increasing the number of fields that can be mowing since the traveling machine can mow the grass while running on a flat surface even on the field that is a slope.

  FIG. 1 is a plan view of a position where a mowing working part is offset to the side of a traveling machine, FIG. 2 is also a rear view, and FIG. 3. FIG. 4 is a plan view of the state in which the mowing operation unit is located behind the traveling machine, FIG. 5, which is also the rear view, and the mowing working part is positioned on the side of the traveling machine, and the cutting blade portion is in the vertical direction. FIG. 6 is a rear view of the state of standing upright, and FIG. 7 is a rear view of the state in which the mowing unit is located on the side of the traveling machine and the cutting blade portion is directed obliquely downward. FIG. 8 is a partially cutaway rear view of FIG. 2, FIG. 9 is an internal explanatory view seen from the rear of the flare mower, and FIG. 10 is an internal explanatory view seen from the side.

  A mowing apparatus according to an embodiment of the present invention includes a mowing unit 1, a horizontal rotation cylinder 2 that rotates the mowing unit 1 in the horizontal direction, and a vertical rotation that rotates the mowing unit 1 in the vertical direction. It has a cylinder 3, a hydraulic pump 4 and a hydraulic tank 5 that serve as a drive source for the mowing operation unit 1, a mounting frame 6, and a working unit support rod 7 that supports the mowing working unit 1.

  The mounting frame 6 is connected to the traveling machine T, in this embodiment the tractor T, by a top mast 6a and a lower pin 6b to a hitch mechanism connected to a three-point link of the tractor.

  A hydraulic pump 4, a hydraulic tank 5, and a work unit support rod 7 are attached to the mounting frame 6. The working unit support rod 7 is fixed to the mounting frame 6 in a direction perpendicular to the traveling direction of the traveling machine T when moving forward and backward, and is provided on one side, on the right side of the traveling machine T in this embodiment. A cutting portion horizontal rotation shaft 70 that is a pivot point of the cutting portion 1 with a vertical axis, a cutting portion mounting portion 71 that rotates horizontally around the cutting portion horizontal rotation point 70, and an arm. A rotation link arm 72 that is rotatable about a rotation fulcrum 73 is provided, and a horizontal rotation cylinder body 20 of the horizontal rotation cylinder 2 is attached to the center portion so as to be rotatable in the horizontal direction. The tip of the rod 21 is pivotably attached to a horizontal rod attachment portion 76 on the rear side of the pivot link arm 72.

  The mowing work part 1 is fixedly attached to the mowing work part mounting part 71 and is slidably inserted into the long hole 75 of the turning link arm 72 by the long hole sliding projection 74. The link arm 72 for rotation has an elongated triangular shape with an obtuse angle at the rear side in a plan view, and a distal end of the horizontal rotation cylinder rod 21 is rotatably attached to a horizontal rod mounting portion 76 at an obtuse angle portion on the rear side. In addition, a straight long hole 75 is provided in the longitudinal direction of the triangle, and a long hole sliding protrusion 74 of the cutting work portion mounting portion 71 is slidably inserted into the long hole 75.

  The mowing working part mounting part 71 is provided with an up / down pivoting cylinder main body 30 of the up / down pivoting cylinder 3 for pivoting the mowing working part 1 in the vertical direction, and an up / down pivoting fulcrum 32, and the tip of the cylinder rod 31. Is attached to an upper and lower rod mounting portion 33 located on the right side of the mowing work portion 1 in a state where the mowing work portion 1 is located on the side, in this embodiment, on the right side. The horizontal rotation cylinder 2 and the vertical rotation cylinder 3 are connected to the hydraulic operation valve of the traveling machine (tractor) T and are operated by the hydraulic pressure of the traveling machine T.

  The mowing operation unit 1 of the mowing apparatus according to the embodiment of the present invention is a flare mower, but may be an apparatus that performs mowing work such as a disk mower. As shown in FIGS. 8 to 10, the flail mower 1 is pulled by the rear part of the traveling machine T and is driven by being connected to the PTO shaft of the traveling machine T, and the hydraulic pressure that is operated by the hydraulic pressure of the hydraulic pump 4. Actuated by the motor 10. A rotational force is transmitted from the hydraulic motor 10 to the rotor shaft 12 through the motor output shaft 10a, the drive pulley 11a, the V belt 11b, and the driven pulley 11c. 11d is a tension roller that applies tension to the V-belt 11b.

  The flare mower 1 is provided with a front guard 13a and a rear guard 13b so as to cover the front and rear upper portions of the rotor shaft 12, and side covers 13c are provided on the left and right.

  The rotor shaft 12 is provided with a plurality of cutting blade holders 14 fixed in the longitudinal direction of the shaft and offset in the circumferential direction. In this embodiment, a plurality of cutting blade holders 14 are provided in the longitudinal direction of the shaft by shifting by 90 degrees in the circumferential direction.

  Each of the cutting blade holders 14 has a groove shape opened with the opposite direction to the rotation direction of the rotor shaft 12 and the outer direction as openings, and has opposing portions facing each other. The opposing part has a holder part attachment member through-hole through which an attachment bolt 15 that is an attachment member can pass, and the cutting blades 16 are attached by the attachment bolts 15 respectively.

  The operation of the mowing apparatus such as a flare mower of the present invention will be described. The state of the forward mowing work performed while the traveling machine T is advanced in the traveling direction of the arrow A at the position where the mowing operation unit 1 is offset to the side of the traveling machine T is shown in FIGS. The mowing operation unit 1 extends the cylinder rod 20 of the horizontal rotation cylinder 2 to the maximum extent, and appropriately extends the cylinder rod 30 of the vertical rotation cylinder 3 to fix it to the offset position on the side of the traveling machine T.

  The first row of the first step in the field is performed by the reverse mowing work performed while the traveling machine is moved backward, and the state is shown in FIGS. By shortening the cylinder rod 20 of the horizontal rotation cylinder 2 from the state of FIG. 1, the cylinder rod 20 rotates the rotation link arm 72 around the arm rotation point 73, and the mowing operation unit horizontal rotation axis. The mowing work part 1 is rotated 180 degrees via the mowing work part attaching part 71 with the rotational center 70 as the center of rotation, and is set in a reverse state to the traveling machine rear position. In this state, the first row of the first step in the field performs the cutting operation while moving the traveling machine T backward in the direction of arrow B.

  In FIG. 7, the mowing work unit 1 is a forward mowing work performed while the traveling machine is moved forward at a position offset to the side of the traveling machine T, but the mowing work part 1 is arranged so as to correspond to a slope farm field. A state in which the mowing work is performed obliquely in the vertical direction with respect to the traveling machine T is shown.

  In a state where the mowing operation unit 1 is offset to the side position of the traveling machine T, it is possible to perform the work in a posture fixed at an angle arbitrarily adjusted between the state of FIG. 6 and the state of FIG.

  The present invention is used as a mowing apparatus such as a flare mower.

The top view of the position which is embodiment of grass cutting devices, such as flare mowers of this invention, and the cutting working part was offset to the side of a run machine Similarly rear view Same perspective view Similarly, a plan view of the state where the mowing unit is located behind the traveling machine. Similarly rear view Similarly rear view of the state where the mowing operation part is positioned on the side of the traveling machine and the mowing blade part is set up vertically Similarly rear view of the state where the mowing operation part is located on the side of the traveling machine and the cutting blade part is directed obliquely downward The mowing device is a flare mower and is a partially cutaway rear view of FIG. Internal explanatory view seen from the back of Flairmore Internal explanatory drawing seen from the side

Explanation of symbols

1 Mowing section (Fleremore)
DESCRIPTION OF SYMBOLS 10 Hydraulic motor 10a Motor output shaft 11a Drive pulley 11b V belt 11c Driven pulley 12 Rotor shaft 13a Front guard 13b Rear guard 13c Side cover 14 Cutting blade holder 15 Mounting bolt 16 Cutting blade 2 Horizontal rotation cylinder 20 Horizontal rotation cylinder body 21 Horizontal Rotating cylinder rod 3 Vertically rotating cylinder 30 Vertically rotating cylinder body 31 Vertically rotating cylinder rod 32 Vertically rotating fulcrum 33 Vertical rod mounting part 4 Hydraulic pump 5 Hydraulic tank 6 Mounting frame 6a Top mast 6b Lower pin 7 Working part supporting rod 70 Mowing working part horizontal turning fulcrum 71 Mowing working part mounting part 72 Rotating link arm 73 Arm turning fulcrum 74 Long hole sliding protrusion 75 Long hole 76 Horizontal rod attaching part

Claims (3)

In a mowing apparatus such as a flare mower that is mounted on a traveling machine and performs mowing work,
Advance mowing work performed while moving the traveling machine forward at a position where the mowing work part is offset to the side of the traveling machine,
A mowing apparatus for flail mower or the like, characterized in that it can be selected from a reverse mowing work that is performed while moving the traveling machine with the mowing working part positioned behind the traveling machine.   The mowing unit is rotated 180 degrees around a horizontal rotation axis whose axial direction is vertical from a position offset to the side of the traveling machine and is reversed to the rear position of the traveling machine. A mowing device such as flare mower described in 1.   In the forward mowing work that the mowing work unit performs while moving the traveling machine forward at a position offset to the side of the traveling machine, the mowing working part is inclined in the vertical direction with respect to the traveling machine so as to correspond to the slope field. A mowing apparatus such as a flare mower according to claim 1 or 2, capable of performing mowing work.

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