JPS6216818Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a weeding culm of a combine harvester for weeding the grain culm of the next row on the unharvested side and pushing it away.

The dividing culm is installed on the side of the machine from the reaping frame to the end of the running gear in order to prevent the grain culms of the next row on the unharvested side from falling toward the machine and being stepped into the mud by the running gear. However, when driving on general roads, it must be stowed to reduce the width.
It is required that it can be easily stored and taken out.

Furthermore, in order to rotate the reaping section when crossing ridges or loading and unloading onto a transport vehicle, the reaping frame pivoting section at the front end must be able to move up and down, thereby allowing it to slide back and forth. Various ideas have been developed based on these two requirements.

The present invention meets these two types of requirements and has a simple and convenient configuration.

The purpose of the present invention is as described above, and the structure of the present invention will be explained based on the structure of the embodiment shown in the attached drawings.

FIG. 1 is an overall side view of the combine harvester of the present invention.

On the traveling device 18, a weed cutting device, a conveyance device, a threshing device, a straw removal device, a control device, a paddy receiving device, etc. are arranged.

The grass dividing board 10 separates the grain culms from the cutting row, guides them to the pulling device, and makes them stand upright. The base of the grain culm is transported by a lower transport device 13, and the tip of the grain is transported by an upper transport device (not shown).

The base of the rice plant is transferred from the lower conveying device 13 to the feed chain 16 by the vertical conveying device 14. The base of the rice plant is then clamped by the feed chain 16 and passed to the threshing device 17.
and is passed on to the straw waste chain 19. The straw waste is either bundled or cut by a cutter for processing.

The dividing culm 2 of the present invention is attached to such a combine harvester.

Figure 2 is a plan view of branch culm 2, Figure 3 is branch culm 2.
FIG.

The front end of the dividing culm 2 is pivotally supported to a front end pivot fitting 9 of the reaping frame 8, and the rear end is pivotally supported to a rear end pivot fitting 11 of the chassis 15. The front end originates from a hidden position behind the grass dividing board 10, and the tip of the dividing culm 2 is bent backward and inserted into the front end pivot fitting 9 to prevent it from coming off. The rear end can be slid back and forth with respect to the rear end pivot fitting 11, and the reaping part is centered at the rotation center 0 in FIG.
By swinging around the center, the back and forth sliding of the splitting culm 2 is absorbed.

5 is a battery, and a support arm 1 is supported on the side surface of the battery 5.

FIG. 4 is a rear view of the support arm 1, and FIG. 5 is a plan view of the support arm 1.

A fixing plate 6 extends from the main arm 7 extending from the chassis 15, and the support arm shaft 3 protrudes from the fixing plate 6. After the support arm shaft 3 is fitted into the elongated hole 1b of the support arm 1, a compression spring 4 is inserted and fixed by pressure with a washer and a nut.

By having this pressure contact device using the compression spring 4, the support arm 1 can follow the movement of the weeding culm when it slides back and forth, and can follow the tendency of the support arm 1 to rotate back and forth, thereby ensuring smooth sliding of the weeding culm. can help with movement.

Furthermore, when storing, by pushing the support arm 1 and sliding it along the support arm axis 3, the support arm 1 can be fixed at any position by the elastic force of the compression spring 4, and the branch culm 2 can be stored. It became possible to store and take out items with a single touch.

A slide rod 2a of the cutting culm 2 is loosely fitted into the hole 1a at the other end of the support arm 1, and is slidable. When the reaping device rotates about the rotation center 0 point in FIG. 3, it slides by a distance of length L in FIG. 5. 2, 2' is the position of the divided culm in the stored state,
2' is the position of the dividing culm during operation.

FIG. 6 is a rear view of the support arm 1, and FIG. 7 is a plan view thereof.

The support arm 1 is made by bending a round bar, and has an elongated hole 1b into which the support arm shaft 3 is loosely fitted;
A round hole 1a is formed at the other end into which a slide culm 2a of the branching culm 2 is loosely fitted. Since it is constructed from a round rod by bending, the contact area for both sliding movements is minimal, and it slides smoothly without getting caught.

As described above, the present invention has a support arm 1 that connects the cutting culm 2 of a rotary reaping combine harvester and the machine body side such as the chassis 15, and a round hole 1a that allows the cutting culm 2 to slide back and forth. , is configured with an elongated hole portion 1b that allows the support arm 1 to protrude and be stored freely with respect to the aircraft body side,
A support arm shaft 3 protruding from the body side is fitted into the elongated hole 1b of the support arm 1, and a compression spring 4 is interposed on the outer periphery of the support arm shaft 3 protruding from the elongate hole 1b. Since the compression spring 4 is spring-receiving at a position away from the culm 2, the support arm 1 can be rotated following the back and forth sliding of the splitting culm 2, so that the following effects can be achieved.

First, the support arm shaft 3 protruding from the body side such as the chassis 15 is fitted into the elongated hole 1b provided in the support arm 1, and the elongated hole 1b of the support arm shaft 3 is fitted.
A compression spring 4 is interposed in the part protruding from b, and the compression spring 4 is received at a position apart from the support arm 1, so that when the branch culm 2 slides back and forth, it inevitably falls inside the round hole 1a. Even if the support arm 1 is not able to slide smoothly and a force is applied to rotate the support arm 1 back and forth, the compression spring 4 expands and contracts to allow the support arm 1 to rotate back and forth. This made it possible to avoid bending deformation of the support arm 1.

Secondly, by fixing the support arm 1 under pressure with the compression spring 4, when storing the cutting culm 2, simply pushing the cutting culm 2 causes the compression spring 4 to bend and allow the storing action. After storage,
It is held in this position by a compression spring 4. Even when it protrudes, it is similarly held in the protruding position by the compression spring 4.

[Brief explanation of the drawing]

Figure 1 is an overall side view of the combine harvester of the present invention.
FIG. 2 is a plan view showing the operation of the weeding culm, FIG. 3 is a side view showing the operation of the weeding culm, FIG. 4 is a rear view of the support arm, and FIG. 5 is a plan view of the support arm. 6th
FIG. 7 is an enlarged view of the support arm. DESCRIPTION OF SYMBOLS 1... Support arm, 1a... Round hole, 1b... Long hole part, 2... Branch culm, 3... Support arm shaft, 4...
...compression spring.

Claims (1)

[Scope of utility model registration request] A round hole 1a that allows the splitting culm 2 to slide back and forth is provided in the support arm 1 that connects the splitting culm 2 of the reaping rotation combine harvester and the machine body side such as the chassis 15;
The support arm 1 is configured with an elongated hole portion 1b that can be freely protruded and stored with respect to the body side, and a support arm shaft 3 that protrudes from the body side is fitted into the elongated hole portion 1b of the support arm 1. A compression spring 4 is interposed on the outer periphery of the support arm shaft 3 protruding from the support arm 1.
This weeding device for a combine harvester is characterized in that the compression spring 4 is spring-received at a position away from the weeding culm 2, and the supporting arm 1 can follow and rotate when the weeding culm 2 slides back and forth.