JPH0252Y2 - - Google Patents

Description

[Detailed Description of the Invention] In order to make the vehicle more versatile, the present invention is designed to removably mount a working device on the frame of a traveling vehicle body that is configured to be able to carry out transportation work independently, and to attach and detach a working device to the vehicle body frame. An inverted L-shaped clamp fitting is inserted and pivoted between a pair of left and right brackets set upright, and the tip of the lower frame of the working device, which is mounted on the vehicle body frame and pushed in, is brought into contact with the vertical side of the clamp fitting. By rotating the clamp metal fitting, the upper side of the clamp metal fitting is configured to press and fix the tip of the lower frame onto the vehicle body frame, and the clamp metal fitting is rotated by a spring installed between the brackets so that the upper side of the clamp metal fitting swings upward. The present invention relates to a dynamically biased working device clamp structure.

Conventionally, to configure the above-mentioned working device clamp structure, as shown in FIG. 8 A and B, the vehicle body frame 6
A pair of left and right brackets 13, 13 are erected at one end, and between the brackets 13, 13, there is a band-shaped contact piece 9b connecting two inverted L-shaped plates 9c, 9d and their inner corner edges. An inverted U is attached to the connecting member 13a spanning the left and right brackets 13, 13.
The vertical side A of the clamp fitting 9 was pressed by the shape plate spring 15, and the upper side B of the clamp fitting 9 was rotationally biased to take an upward swinging position to receive the working device frame.

In the above conventional structure, the number of members forming the clamp fitting 9 is large, and the manufacturing process is also increased, resulting in high cost.Furthermore, in order to stably assemble the leaf spring 15, bolts are fixed to the connecting member 13a of the brackets 13, 13. Because of this structure, there is a drawback that assembly and replacement of the leaf spring 15 requires time and effort, and there is room for improvement.

The purpose of the present invention is to reduce the number of members of a clamp fitting and to simplify its structure and assembly.

The characteristic structure of the present invention is that, in the above-mentioned working device clamp structure, the clamp fitting is made of a single plate material with an inverted L-shaped outer shape, and the contact piece made of a strip plate material is arranged in a T-shape along the inner corner edge of the clamp fitting. The spring is formed by bending a spring wire into a substantially U-shape or a substantially V-shape, and a loop portion is formed in a part of this spring, and this is connected to a locking portion provided on the bracket. At the same time, a part of the spring is brought into contact with the upper surface of the vehicle body frame or the bracket to maintain the posture of the spring, and the free end of the spring is brought into contact with the back edge of the vertical side of the clamp fitting. The functions and effects are as follows.

In other words, the clamp fitting is formed from one plate piece and the abutment piece that is joined to it. Moreover, the distance between the brackets to which the clamp fitting is attached can be made extremely small, and the spring that biases the clamp fitting to rotate is also made of thin wire. Because of this, the number of parts and materials used are reduced compared to conventional methods. In addition, the spring installation is completed by simply securing the loop part of the spring to the locking part of the bracket, so there is no need for the hassle of tightening bolts as in the past, making it easy to replace rusted or broken springs. It became like that.

As a result, costs can be reduced by reducing the number of parts and materials used, and the spring can be easily replaced. It is now possible to provide a working device clamp structure that is superior in terms of both cost and operation.

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 1, a traveling vehicle body equipped with a crawler traveling device 1 is provided with a driving unit 2 and a control handle 4.
In addition, a threshing device 5 is removably mounted on a vehicle body frame 6 to constitute a harvester. In this harvester, the threshing device 5 is lowered from the vehicle body and supported in an inclined position on the ground using a stand 7 as shown in FIG. 6, so that the traveling vehicle body can be used as a traveling type transport vehicle. The aim is to make the vehicle more versatile.

To explain the attachment/detachment structure of the threshing device 5, as shown in FIG. While supporting one end of the threshing device 5 and lifting the other end of the threshing device 5,
As shown in the figure, after placing the lower frame 8 on the vehicle body frame 6 and pushing the threshing device 5 all the way to the back, as shown in FIG. At the same time, the rear end of the lower frame 8 is pressed and fixed onto the vehicle body frame 6 by the presser metal fitting 10 and the jack bolt 11.
By tightening and fixing the threshing device 5 to the vehicle body frame 6, the loading and fixing operation of the threshing device 5 is completed. Thereafter, the driven part of the threshing device 5 and the driving part 2 are interlocked and connected by the belt 12, and as shown in FIG. 1, the threshing machine can be used as a mobile threshing machine.

To explain the clamp fitting 9 in more detail, as shown in FIGS. 2 to 5, the outer shape is an inverted L.
A single plate piece 9a in the shape of a letter and a contact piece 9b welded together so that the cross section becomes T-shaped along the inner edge of the plate piece 9a.
A clamp fitting 9 made of
4, the lower frame 8 of the thresher 5 pushed onto the vehicle body frame 6 is brought into contact with the vertical side A of the clamp fitting 9, and the clamp fitting 9 is rotated. Depending on the situation, the upper side B of the clamp fitting 9 is configured so that the tip of the lower frame 8 can be pressed and fixed onto the vehicle body frame 6. Then, the loop portion 15a at one end of the spring 15, which is formed by bending a spring wire into a substantially U-shape, is attached to the inside of the bracket 13 with a split pin 16, and the bent portion of the spring 15 is brought into contact with the upper surface of the vehicle body frame 6, and the spring is tightened. 15, the free end of the spring 15 is brought into contact with the back edge of the vertical side A of the clamp fitting 9, and the clamp fitting 9 is rotated so that its upper side B swings upward. When the threshing device 5 is pushed in, the upper side B of the clamp fitting 9 is positioned above the upper side C of the lower frame 8, so that the tip of the lower frame 8 can easily move the vertical side A of the clamp fitting 9.
It is constructed so that it can come into contact with the

In addition, to replace the rusted or broken spring 15,
This can be easily done by simply inserting and removing the split pin 16.

Next, another example will be described.

The shape, mounting structure, and other aspects of the clamp fitting 9, the bracket 13, and the spring 15 can be changed as appropriate. For example, as shown in FIG. 15a
It is formed into a substantially V shape with one free end abutting the connecting member 13a integrally molded with the bracket 13, and the other free end abutting the back edge of the vertical side A of the clamp fitting 9. Alternatively, as shown in FIG. Alternatively, the loop portion 15a of the spring 15 may be attached to and removed from the bracket 13 by inserting and removing a headed pin with a stopper instead of a split pin. Alternatively, the locking portion 16 may be fitted into and removed from a protrusion formed on the bracket 13, and these are collectively referred to as the locking portion 16.
It is called.

Instead of the threshing device, a spreading device may be mounted on the traveling vehicle body so that it can be used as a mobile spreading device for chemicals, fertilizers, etc. These are collectively referred to as working devices 5, and the shape of the lower frame 8, The specific configuration of the working device 5, such as the mounting structure, can be changed as appropriate.

Various changes can be made to the specific configuration of the traveling vehicle body. For example, a plurality of drive wheels may be attached in place of the crawler traveling device 1, or a passenger driving section may be provided to make it a riding type. 6
A part of the container may be formed flat so that it can be used for transporting scattered items, or detachable side plates and frames may be attached to three sides of the container to enhance functionality during transportation.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the working device clamp structure according to the present invention, FIG. 1 is an overall side view of the harvester, FIG. 2 is a sectional view of the main part showing the clamped state, and FIG. 3 is the clamp structure. FIG. 4 is a sectional view of the main part showing the released state, FIG. 4 is a front-back sectional view of the main part, FIG. 5 is a perspective view showing the mounting structure of the clamp fitting, and FIG. 6 is a side view of the working device in a separated state. Figure 7 A,
B is a sectional view of a main part showing another embodiment of the present invention.
8A and 8B show a conventional example, FIG. 8A is a sectional view corresponding to FIG. 3, and FIG. 8B is a sectional view corresponding to FIG. 4. 5... Working equipment, 6... Vehicle body frame, 8...
Lower frame, 9... Clamp fitting, 9a... Plate piece, 9b... Contact piece, 13... Bracket, 15
...Spring, 15a...Loop portion, 16...Locking portion, A...Vertical side, B...Top side.

Claims (1)

[Scope of Claim for Utility Model Registration] The working device 5 is removably mounted on the frame 6 of the traveling vehicle body, and the vehicle body frame 6
An inverted L-shaped clamp fitting 9 is inserted and pivoted between a pair of left and right brackets 13, 13 that are set upright,
By bringing the tip of the lower frame 8 of the working device 5 mounted on the vehicle body frame 6 and pushed in into contact with the vertical side A of the clamp fitting 9 and rotating it,
The lower frame 8 is connected to the upper side B of the clamp fitting 9.
The tip of the clamp fitting 9 is pressed and fixed onto the vehicle body frame 6, and the clamp fitting 9 is biased to rotate by a spring 15 installed between the brackets 13, 13 so that the upper side B of the clamp fitting 9 swings upward. The device has a clamp structure, and the clamp fitting 9
is composed of a single plate piece 9a with an inverted L-shaped outer shape, and a contact piece 9b made of a strip plate material is joined and welded in a T-shape along the inner corner edge of the plate piece 9a, and the spring 15 is made of a spring wire material. The spring 15 is bent into a substantially U-shape or a substantially V-shape, and a loop portion 15a is formed in a part of the spring 15, and this is connected to the bracket 13.
At the same time, a part of the spring 15 is brought into contact with the upper surface of the vehicle body frame 6 or the bracket 13 to maintain the posture of the spring 15, and the free end of the spring 15 is is brought into contact with the back edge of the longitudinal side A of the clamp fitting 9. The clamp structure according to claim 1, wherein the working device 5 is a threshing device.