JPH022194Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a grain culm pulling device, and can be used in a paulownia cutting machine and a combine harvester.

[Prior art]

The conventional configuration is, for example, as shown in FIG.
When the lifting lug 7 reaches the lower part of the lifting case 1, the base portion 5 suddenly contacts (collides with) the upright member 8 and instantly rotates upright.

Therefore, the lifting lug 7 generates a collision sound with the upright member 8, and also bounces back in the opposite direction due to the reaction of the uprighting, thereby generating noise.

Further, the lifting lug 7 may interfere with the case 1 and be damaged due to the sudden lifting action.

Problems to be Solved by the Invention As seen in the conventional device described above, when the lifting lug stands up at the starting end of the lifting case and projects outward, it is instantaneous and rapid, causing collision noise. However, there were problems with the generation of noise and damage due to standing reaction.

[Means to solve the problem]

In order to solve the above-mentioned problems, this idea
Use the following technical means: That is, a transfer chain 4 is rotatably wound and tensioned between wheels 2 and 3 provided above and below in a lifting case 1, and a base 5 of the transfer chain 4 is undulated by a shaft 6. A lifter made of an elastic body is provided with a rotatably pivoted lifting lug 7, which is raised at the lower part of the lifting start end of the lifting case 1, and rotates the lug 7 to an upright state when its base 5 comes into contact with the lifting lug 7. A member 8 is provided, and this upright member 8 is formed to be long vertically along the transfer chain 4, and gradually approaches the transfer chain as it goes from the upright start side A to the end side B. This is a grain culm raising device characterized by:

[action, effect]

The lifting lug 7 is guided by the transfer chain 4 which is rotated by the wheel body 2 being driven, and in the lifting path C, its base is guided in sliding contact with the guide rail 9 to maintain the upright state. Maintain and rise.

In this way, the raising lug 7 performs the action of raising the lodging grain culm before harvesting.

Since there is no guide rail 9 on the opposite side of the case 1 (opposite side of the lifting path C), the lifting lug 7 lies down and moves downward.

At this time, the lifting lug 7 moves so that the base 5 is at the bottom and the tip 7a is at the top.

In this way, the lying lug 7 is,
The lifting case 1 moves downward to the lower lifting start end, and the base 5 approaches the contact surface 8a of the upright member 8.

Then, as the downward movement progresses, the base 5 starts to come into contact with the contact surface 8a, and the raising lug 7 starts to rise.

The upright member 8 of the upright case 1 is configured to gradually approach the transfer chain 4 toward the end of the upright position, so that the base 5 of the upright lug 7 gradually becomes stronger as it moves downward. It slides on the contact surface 8a and gradually approaches the upright state.

In this way, the raising lug 7
It slowly stands up and rotates around the shaft 6 while being guided in sliding contact with it.

Then, the lifting lug 7 starts the lifting action.

This idea allows the lifting lug to rotate around its axis at a slow speed, which reduces the collision noise between the lifting member and the upright member, and prevents the lifting lug from bouncing back due to the reaction of standing up. have

Furthermore, the lifting lug has a feature that it can prevent damage to the lug by reducing interference with the side surface of the case.

Since the upright member is made of an elastic body, when the contact surface contacts the base of the lug, it absorbs the contact force based on elastic deformation, further promoting each of the above effects, and This has the advantage of preventing damage to the upright member.

〔Example〕

The transfer chain 4 is wound and tensioned around a pair of upper and lower wheels 2 and 3 (sprockets) that are axially suspended within the lifting case 1.

The upper wheel body 2 is a driving wheel.

A plurality of lifting lugs 7 are attached to the transfer chain 4 by means of a shaft 6, with the base portions 5 thereof being freely rotatable up and down at predetermined intervals. 7a indicates the tip of the lifting lug 7.

A guide rail 9 is provided on the grain culm lifting path C side of the transfer chain 4, and is configured so that its base 5 can be slidably guided in order to maintain the lifting lug 7 in an upright state.

The raising internal member 8 is made of an elastic material, and has its raising start side (A) and raising end side (B) end gradually approaching the transfer chain 4 as it goes from the raising start side (A) to the raising end side (B). It is fixed to the lifting case 1 by pins 10, 10, and forms a contact surface 8a that slides and guides the base 5 of the lifting lug 7.

The lifting lug 7 configured as described above begins to lift and rotate when the transfer chain 4 is driven.

First, in the grain culm lifting path C, the lifting lug 7 performs the lifting action while being raised in an upright state with its base 5 being slidably guided by the guide rail 9.

When the raising lug 7 reaches the lowering side, the base portion 5 moves downward with the tip 7a facing upward and reaches the upright member 8 in a collapsed state.

Then, as shown in FIG.
Stand up slowly with the center at the center.

In this way, the raising lug 7 performs the action of raising the grain culm.

[Brief explanation of drawings]

The drawings show one embodiment of this invention, in which Fig. 1 is a front view, Fig. 2 is a front view of the main part, Fig. 3 is a side view, and Fig. 4 is a slope view of the main part. FIG. 5 is a partially front sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1... Lifting case, 2, 3... Wheel body, 4... Transfer chain, 5... Base of lifting lug, 6... Shaft, 7... Lifting lug, 8... Upright member, 8a... Contact surface, 9... Guide Rail, 10...pin.

Claims (1)

[Scope of utility model registration request] A transfer chain 4 is rotatably wound and stretched between wheels 2 and 3 provided above and below in a lifting case 1,
This transfer chain 4 is provided with a lifting lug 7 whose base 5 is pivotably pivoted up and down by a shaft 6, and the lifting lug 7 is provided at the lower part of the lifting start end of the lifting case 1.
An erecting member 8 made of an elastic body is provided, which is rotated to an erected state when its base 5 comes into contact with the erecting member 8. A grain culm lifting device characterized in that it is configured so that it gradually approaches the transfer chain as it goes toward the side.