JPH052020Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The invention is a heavy working machine that is equipped with a loading platform on the front side and a three-point hitch device on the rear side, and is installed on the ground with front legs and rear legs. Various agricultural vehicles can be attached and detached to the rear of the agricultural vehicle more easily and quickly than by simply moving the agricultural vehicle forward or backward relative to the working machine and replacing and pulling out the pins. The present invention relates to a work implement attachment/detachment device for an agricultural vehicle that can be easily installed.

BACKGROUND ART Conventionally, a loading platform (working machine) installed on the ground with jack-type front legs and rear legs that can be raised and lowered is mounted on the chassis of an agricultural vehicle by the backward and forward movement of the agricultural vehicle. A loading/unloading device for a loading platform of an agricultural vehicle that is used for loading and unloading on the ground to smoothly carry out various agricultural tasks and improve cargo handling and transport efficiency was known as described in, for example, Japanese Utility Model Application Publication No. 13124/1983 prior to the filing of this application. This explains the content of FIG. That is, the guide rail 5 is horizontally disposed approximately at the center longitudinal position of the chassis 3 of the agricultural vehicle 1 which has a driver's seat 2 at the front and a large number of wheels 4 mounted on both left and right sides. The loading box 6 is separated from the chassis 3 and mounted directly on the chassis 3 so as to be slid along the guide rail 5. On the front back side of the cargo box 6, there are rollers 7 that roll on the guide rail 5 and extension adjustment. A front leg 8 with a jack that can be raised and lowered is provided on the same line in the front and rear, and a pair of rear legs 9, 9 with a jack that can be extended and adjusted to the rear left and right positions on the back side of the loading platform 6 and can be raised and lowered in the left and right direction. It is configured by providing.

Problems to be solved by the invention By the way, in the conventional loading/unloading device of this type, when the loading platform is attached to an agricultural vehicle, the front legs and rear legs are used to move the heavy loading platform installed on the ground onto the jack. After adjusting the elevation to match the height of the chassis, the farm vehicle is moved backwards relative to the platform, and the platform is loaded onto the vehicle.Also, when loading and unloading the platform from the farm vehicle onto the ground, the heavy platform must be moved by the worker. The agricultural vehicle is then moved backward along the guide rail, and then the left and right rear legs, which are folded perpendicularly to the longitudinal direction of the loading platform, are erected and touched on the ground, and then the farm vehicle is pulled out from the loading platform. It was designed to load and unload the cargo platform on the ground by moving the vehicle forward and automatically raising the front legs.

However, according to the conventional attachment/detachment means described above, when loading and unloading the loading platform from the agricultural vehicle chassis, the heavy loading platform must be slid rearward along the guide rail each time the agricultural vehicle is stopped. This created a problem in which a single worker was sometimes unable to move the loading platform, requiring a lot of effort.

Means for solving the problems The present invention solves the above problems, and includes:
The contents will be explained with reference to FIGS. 1 to 3. That is, a loading platform 108 is provided on the front side, a three-point link hitch device 109 is provided on the rear side, and a guide rail 10 is provided at the lower front side of the loading platform 108 at approximately the central longitudinal position of the chassis 103 of the agricultural vehicle 101.
A working machine 107 is provided with a pivotably mounted front leg 111 that can be folded up and down only when it is mounted on a vehicle.

And the work machine 107 configured as described above.
There are two pin holes 11 on both sides of the lower part of the central fuselage 112.
Mounting bracket 115 with holes 3,114 in the upper and lower positions
Attach.

The mounting bracket 115 pivotally supports rear legs 116, 116 which can be expanded and contracted. and the hind legs 11
6, 116 are pins 11 to pin holes 113, 114
By replacing and pulling out 7, the device is configured to be brought into contact with the ground in a downward erect state, an upward erect state, or an obliquely rearward tilted state with the pivot portion as an axis.

Operation Now, the working machine 107 equipped with the three-point hitch device 109, which has the loading platform 108 on the front side and suitable agricultural work members (not shown) on the rear side, is attached to the rear of the agricultural vehicle 101. When it is desired to perform appropriate agricultural work using agricultural work members, first, the height at which the front legs 111 and the left and right rear legs 116, 116 are mounted on the guide rail 105 and the chassis 103 provided on the agricultural work vehicle 101 side is determined. to adjust the elevation.

Then, the agricultural vehicle 1
Move the 01 backwards. Then, as the agricultural vehicle 101 moves backward, the roller 110 mounted on the shaft at the front lower part of the loading platform 108 is fitted into the guide rail 105.
For rolling motion, the chassis 103 can be easily moved into the cargo box 108.
At the same time, the front landing gear 111 is automatically folded in the reverse direction by the pressing action of the chassis 103.
The lower part of the chassis 103 is also mounted on the rear part of the chassis 103. Once the entire working machine 107 is securely mounted on the agricultural vehicle 101 as described above, the working machine 107 is fixed so that it does not move accidentally, and the rear legs 116, 116, which are now in an upright position, are inserted into the pin holes. By pulling out the pin 117 from the pin 114, the agricultural vehicle 101 is inverted and stood vertically upward by 180 degrees as shown by the two-dot chain line, and the pin 117 is inserted into the pin hole 113 and fixed. The robot is made to travel to a work place and perform appropriate agricultural work using the work machine 107. In addition, if you want to remove the working machine 107 from the agricultural vehicle 101 and set it upright on the ground due to the completion of agricultural work, first insert the pin 117 through the pin hole 113 of the rear legs 116, 116, which are erected vertically upward. As you pull out the rear legs 116, 11
Adjust the length of the rear legs 116, 116 so that the length of the rear legs 116,
Ground the bottom end of the

Next, the agricultural vehicle 10 is moved with the working machine 107 mounted on the chassis 103 of the agricultural vehicle 101.
1 slightly backward, the agricultural vehicle 101
The rear legs 116, 116, which are positioned obliquely toward the rear due to the pressing action of the backward motion, are erected vertically as shown by the solid line, so that the rear side of the working machine 107 is higher than the height of the chassis 103. lift.

When the rear legs 116, 116 are grounded in an upright state as described above, the agricultural vehicle 101 is moved forward so as to be pulled out from the working machine 107. At the same time as the front legs 11 are pulled out sequentially along
1 separates from the seat 103 and becomes an upright state due to the instantaneous attack. Therefore, if the agricultural vehicle 101 is further advanced so as to be pulled out from the working machine 107, the working machine 107 is completely unloaded from the agricultural vehicle 101 and installed on the ground using the front legs 111 and the rear legs 116, 116. .

Embodiment A preferred embodiment of the construction of a work implement attachment/detachment device for an agricultural vehicle according to the present invention will be described with reference to the accompanying drawings.

In the drawing, 101 indicates a driver's seat 102 at the front.
It is also an agricultural vehicle equipped with a chassis 103 on which a large number of wheels 104 are mounted on both left and right sides, and an approach guide body 106 that is tilted downward and deployed is located at a substantially central longitudinal position on the chassis 103 at the starting end. A guide rail 105 provided on the side is directly fixed. 10
Reference numeral 7 denotes a working machine provided separately from the agricultural working vehicle 101 so as to be mounted on the agricultural working vehicle 101 or installed on the ground.
is equipped with a loading platform 108 on the front side on which suitable agricultural products or other articles can be loaded, and a known three-point link hitch device 109 on the rear side, and furthermore, on the front back side of the loading platform 108, the loading platform 108 rolls along a guide rail 105. The roller 110 and a jack-type front leg 111 that can be freely adjusted in extension and that can be lowered longitudinally rearward about the upper end pivoting portion are arranged in the same line in front and back positions, and furthermore, the roller 110 can be moved forward and backward. Guide rail 10 guided by guide body 106
If the agricultural vehicle 101 is moved backwards with respect to the working machine 107 while rolling along the working machine 1
The front side of 07 is easily mounted on the chassis 103.

The central machine body 112, which is provided upright in the center of the working machine 107 configured as described above, has a U-shaped cross section with two pin holes 113 and 114 formed at the upper and lower positions on the lower rear surface of both left and right sides. Mounting bracket 115,1
15 are respectively attached, and the mounting brackets 11
5 and 115, the upper end sides of jack-type rear legs 116 and 116, which can be expanded and contracted, are respectively pivotally connected.

The rear legs 116, 116 have pin holes 11
When inserting the pin 117 into the pin hole 113, the rear legs 116, 116 are fixed in a 180-degree inverted state so that they are facing upright as shown in the two-dot chain line position in FIG. 1, and the pin 117 is pulled out from the pin hole 113. At the same time, with the length adjusted, the lower end can be brought into contact with the ground in a diagonally backward downwardly inclined state as shown by the dashed line in FIG. On top of that,
When the pin 117 is inserted into the pin hole 114, the rear legs 116, 116 are fixed in a downwardly upright position as shown by the solid line in FIG.

The aforementioned rear leg 116 is composed of a cylindrical body 118 having a screw carved therein and an adjusting screw 119 to which an adjusting handle 120 screwed into the cylindrical body 118 is fixed, and is rotated by the left and right rotation of the adjusting handle 120. By expanding and contracting the adjusting screw 119 with respect to the cylindrical body 118, its length can be adjusted.

Note that when the working machine 107 is mounted on the agricultural vehicle 101, the lower part of the central body 112 is mounted on the chassis 103, and the working machine 107 mounted on the agricultural vehicle 101 is fixed by an appropriate mounting means. It is something that forces you to do something. Reference numeral 121 denotes a towing aircraft for keeping the nose gear 111 towed so that it is always in an upright state.

Effects of the invention In short, the present invention has the above-mentioned technical means, so the loading platform 10 provided on the working machine 107
8 and the height of the central body 112 do not match the height of the chassis 103 of the agricultural vehicle 101, they can be easily matched by adjusting the lengths of the front legs 111 and rear legs 116, 116, and the agricultural vehicle 101 can simply move backwards. Due to the operation, the front side of the work machine 107 is moved to the guide rail 10.
5 on the chassis 103 of the agricultural vehicle 101, and the entire working implement 107 can be easily moved to the chassis 1 by further backward movement of the agricultural vehicle 101.
The working machine 107 can be mounted on the chassis 1 to facilitate various agricultural works.
When loading and unloading onto the ground from above, the rear legs 116, 116 fixed to the mounting brackets 115, 115 in an upright position are pulled out from the pin holes 113 by the pins 117, and the rear legs 116, 116 are After adjusting the length so that it is grounded diagonally backward and downward, the agricultural vehicle 101 is moved slightly backward, and this causes the rear legs 116, 116 which had been tilted diagonally backward and downward due to the pressing action caused by the backward movement. by standing upright, lifting the rear side of the working machine 107 to move it away from the chassis 103, and then moving the agricultural vehicle 101 forward so as to pull it out from the working machine 107. Due to the guiding action of the rail 105, the work machine 107
This has the effect that the entire structure can be easily loaded and unloaded onto the ground while saving labor.

[Brief explanation of the drawing]

The drawings show an embodiment of the work implement attachment/detachment device for an agricultural vehicle according to the present invention. The figure is a rear view of the working machine with the three-point hitch device removed, FIG. 3 is a perspective view of the agricultural vehicle, and FIG. 4 is a side view of the conventional example. 101... Agricultural vehicle, 103... Palm, 10
5... Guide rail, 107... Work equipment, 108...
...Cargo platform, 109...Three-point link hitch device, 11
1... Nose landing gear, 112... Center fuselage, 113, 11
4...Pin hole, 115, 115...Mounting bracket, 1
16,116...back leg, 117...pin.

Claims (1)

[Scope of utility model registration request] It is equipped with a loading platform on the front side and a three-point link hitch device on the rear side, and can only be folded when mounted on the guide rail installed at the bottom of the front side of the loading platform at approximately the central longitudinal position of the chassis of the agricultural vehicle. There are two
A mounting bracket with pin holes in vertical positions is attached, and a rear leg that can be expanded and contracted is pivotally supported on the mounting bracket, and the rear leg can be pivoted by replacing the pin in the pin hole and pulling it out. 1. A work implement attachment/detachment device for an agricultural vehicle, characterized in that it is grounded in an upright position facing downward, in an upright position facing upward, or in an inclined state facing diagonally rearward with the axis being an axis.