JPS6338742Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a grass cutting reversing machine configured using a rotary mower.

It is possible to attach a grass clipping inverter to a rotary mower, which is constructed by installing a vertically rotating cutting section at the front of a self-propelled vehicle body, and use it as a working machine to flip and spread grass clippings that have been cut down on the field. This has already been implemented, but the conventional structure was such that the grass clippings inversion device, which rotates horizontally around a vertical axis, was installed in parallel in front of the cutting section of the rotary mower, so when installing the grass clippings flipping device, the overall length of the machine was It has the disadvantage that it is extremely long, which worsens the front-to-back balance of the aircraft and makes it difficult to work.
Furthermore, since the reversing action diameter cannot be increased, the reversing action width becomes narrower and the reversing performance deteriorates.

Although the present invention can be used as a grass cutting reversing work machine by attaching a grass reversing device to the rotary mower as in the past, the length of the machine body can be significantly shortened compared to the conventional one, and it has good front-rear balance. To provide a grass clippings reversing work machine that is improved so that its reversing width can be expanded and its reversing performance can also be improved.

Specific embodiments of the present invention are illustrated in the drawings, and details of the configuration will be explained below based on the illustrated embodiments.

A is a self-propelled body of a rotary mower, and has driving wheels 1, 1 attached to a running transmission disposed in the center in the front-rear direction.
An engine 2 is mounted on a frame extending rearward from the running transmission, and a steering handle 3 is extended rearward. Furthermore, a vertical shaft rotating type cutting mechanism B is installed in the frame portion forward of the running transmission, so that the front and rear portions of the vehicle body can swing up and down like a seesaw around the axle center of the drive wheels 1, 1.

The vertical axis rotation type reaping mechanism B is a reaping drive case (not shown) installed at the front of the self-propelled vehicle body A.
At the lower end of the reaping drive shaft 4, which is vertically installed downward from the
It is constructed by fitting a rotor 5 forming a rotary cutting blade portion E and mounting cutting blades 6, 6 on this rotor.

A PTO shaft is made to protrude from the upper part of the cutting blade drive case, and a hit part 7 is installed at the front end of the vehicle body appropriately above the rotor 5, and the hit part 7 is driven by a fixing device 8. The support D can be detachably attached.

The drive support D has a support base 10 fixed to a mounting arm 9 connected to a hitch part, an input part 11a of a transmission mechanism 11 is installed at the rear end of the support base 10, and the input part is connected to the PTO shaft. It is configured so that it can be interlocked and connected, and a grass clippings reversing tool C can be installed at the front end.

The cut grass reversing tool C has a support wheel 12 that can be adjusted up and down.
, a driving barrel 13 rotated by the transmission mechanism 11, and a reversing fork 14 rotating in conjunction with the driving barrel.
is configured to be able to rotate with a forward inclination angle (angle of inclination to the ground θ), and the rear portion of the rotation is configured to wrap above the rotary cutting blade portion E.

Further, to describe the structure of this grass clipping reversing tool C in detail, an outer cylinder 15 whose axis is inclined diagonally forward is attached to the front end of the support base 10, and the upper end of the outer cylinder 15 is operated by a rotating handle 16. A moving body 18 internally supports a screw shaft 17 and is screwed onto the screw shaft.
The supporting wheel 12 is held in an idle state at the lower end of the lifting inner cylinder 19, thereby forming a supporting wheel lifting mechanism.

A bearing 20 is mounted on the outer cylinder 15 of the support wheel lifting mechanism.
The drive cylinder 13 is rotatably fitted on the outside through the
1 are connected to each other, and a fork mounting arm 22 is connected to the lower end so as to rotate together, and an inverted fork 14 is mounted and installed at the tip of the arm 22 in a hanging shape. Note that the symbol a in the figure represents the ground.

Next, to explain the operation of the working machine configured as above, when using the rotary mower as a reaping and reversing working machine, the drive support D is connected to the hit portion 7 of the self-propelled vehicle body A. If the grass clippings reversing tool C is mounted on the vehicle body and the input part 11a of the transmission mechanism 11 is interlocked and connected to the PTO shaft on the vehicle body side, it becomes a grass clippings reversing work machine. Since the rear part thereof is inclined above the cutting blade part E, the distance from the drive wheel 1 is relatively short.

However, when reversing grass clippings, if the PTO shaft is rotated and the transmission mechanism 11 is operated, the drive cylinder 13 will rotate and the reversing fork 14 will rotate, so the self-propelled vehicle will When A is moved forward, the reversing fork 14 will flip up the grass clippings in the field to the rear and side, and the reversing fork will be reversed.The height of the reversing fork above the ground is adjusted by adjusting the height of the support wheel 12 by operating the rotating handle 16. You can set it arbitrarily and adjust it to a suitable inversion state.

In this way, the present invention is arranged further forward than the vertical axis rotating type reaping mechanism B, which is installed at the front of the self-propelled vehicle body A, and the grass clippings reversing tool C, which rotates vertically, is removably installed using the drive support D. This grass cutting tool C
The reversing fork 14 is configured to rotate with a forward inclination angle θ, and the rear part of the rotation is configured to operate by wrapping above the rotary cutting blade portion E of the reaping mechanism B. Therefore, even though it is a grass cuttings reversing machine that is formed by attaching a grass clippings reversing tool to the body of a rotary mower, the overall length of the machine is significantly shortened compared to the conventional structure, even though the reversing action width is relatively large. As a result, maneuverability is improved, and since the reversing fork 14 operates with a forward inclination angle θ, the grass clippings can be separated well when reversing and jumping out, and smooth reversing work can be performed without causing wrapping etc. It has a powerful effect.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of a grass clippings reversing machine according to the present invention, and FIG. 2 is an enlarged sectional view of its main parts. A...Self-propelled vehicle body, B...Vertical axis rotation type reaping mechanism,
C... Grass reversing device, D... Drive support, E... Rotating cutting blade section, a... Ground, θ... Forward tilt angle, 14...
Inverted fork.

Claims (1)

[Scope of utility model registration request] A vertical axis-rotating grass clippings reversing tool C is removably mounted on a drive support D, located further forward than the vertical shaft rotating type reaping mechanism B installed at the front of the self-propelled vehicle body A. The grass clippings reversing operation is characterized in that the reversing fork 14 is configured to rotate with a forward inclination angle θ, and its rotating rear portion wraps above the rotary blade portion E of the mowing mechanism B to operate. Machine.