JPH019378Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is based on the lower part of a lifting case in which the case surfaces on the working and non-working sides of the stem culm lifting are formed smoothly, and the lifting claws are set up on the outside of the case at the bottom of the case. This invention relates to a stem culm pulling device that is provided with a rotating abutting member and one rotating wheel.

Conventionally, in this type of stem culm lifting device, as shown in FIG. 3, the rotating wheel and the abutment member were provided at approximately the middle position in the width direction of the lifting case.
When the lifting claw slides into contact with the abutting member, the lifting claw first raises the stem culm of the lifting case and stands up in a state that projects outward on the non-acting side, and in that erected state, the lifting claw rotates. It rotated around the rotational axis of the driving wheel body to lift the stem culm and reach the action side.

However, in the above-mentioned conventional device, since the rotating wheel and the abutting member are provided at approximately the middle position in the width direction of the lifting case, the length of the lifting claw protruding from the lifting case when it is erected is small. , the length of the protruding claw from the lifting case when performing the stem culm lifting action becomes approximately the same, and when the raised pulling claw rotates toward the side where the stem culm is lifted, the planted stem The drawback was that the culm was easily pushed down.

Further, the lifting pawl has its base end swingably supported on an endless band such as a chain stretched over rotating wheels provided at the upper and lower positions of the lifting case. However, in the past, for example,
As disclosed in Publication No. 29461, since the lifting pawl was not regulated to a constant posture when slidingly contacting the abutting member, the lifting pawl was distorted due to its posture before slidingly contacting the abutting member. Or, the sliding contact with the contact member may be delayed and it may suddenly stand up, which may cause the endless band to shake in the case width direction, further disturbing the posture of the lifting claw and reducing the durability of the lifting claw. There were drawbacks such as the fact that

The present invention has been developed in view of the above-mentioned circumstances, and is designed to avoid, as much as possible, the lifting claws that take a downward path from pushing down the planted stem culm when the lifting claws at the bottom of the lifting case are rotated upright. It is an object of the present invention to provide a stem culm lifting device which also regulates a lifting claw in a good posture when it slides into contact with an abutment member.

Next, embodiments of the present invention will be described in detail based on the drawings.

A lifting device 1 installed in a harvester such as a combine harvester or a binder includes a lifting case 2 that is separably connected with bolts in the longitudinal direction of the machine, and its front, rear, left and right surfaces are formed to be smooth and wide. Then, the smooth surface on the lifting action side is pulled up and installed obliquely to the rear with the smooth surface aligned with the path, and inside this lifting case 2, the rotation axis is made almost perpendicular to the front and rear case surfaces. In this state, the drive wheel body 3 and the tension wheel body 3' are attached to the upper part of the case, and the lower wheel body 4 as one rotating wheel body is attached to the lower part of the case, and the lower wheel body 4 is attached in the width direction of the case 2. An endless chain 5 is wound around these upper and lower wheels 3, 3', and 4, and is connected to opposite chain links at appropriate intervals in the longitudinal direction of the chain 5. By connecting the parts,
Lifting pawls 6 are pivotally connected across the opposing portions of the connecting member and supported on both sides.

That is, as shown in FIG. 2, protrusions 6a, 6a formed protruding from both sides of a groove formed at the proximal end of the raising claw 6 for the purpose of straddling the connecting member, and the connecting member. The lifting pawl 6 is pivotally connected to the chain link by means of a pin provided through the chain link.

A member 7 for rotating the lifting claws 6 into the case 2 at the upper end on the lifting action side, and an abutting member 8 for raising and rotating the lifting claws 6 at the lower end on the non-lifting side are respectively attached to the case 2. A guide rail 9 is provided inside the case 2, and a guide rail 9 is provided on the lifting action side for causing the lifting pawl 6 to stand up and protrude outward from the case 2, and the abutment member 8 is integrally connected to the lower wheel body 4. There is.

Further, on the non-lifting side near the lower wheel body 4, as shown in FIG.
The guide surface 10a of the guide member 10 formed along the chain 5 transfer direction comes into contact with the outer circumferential surface of the protrusion 6a of the lifting claw 6, so that the lifting claw moves outward from the case. It is attached inside the case 2 so that the base end of the claw can be guided to the abutment member 8 in a state where swinging movement is prevented, and when the lifting claw 6 is guided by the guide member 10, the lifting claw 6 is guided by the guide member 10. A regulating member 11 that restricts the swinging of the tip end side of the pulling claw 6 inward from the case, that is, the swinging toward the stem culm lifting action side in the width direction of the lifting case 2.
is attached inside the case 2 at a position opposite to the guide member 10 with the movement path of the lifting claw 6 in between, and at a base on the upper side of the movement path of the lifting claw than the guide member 10. As the lifting pawl 6 moves, the prevention of swinging of the lifting pawl 6 toward the outside of the case due to the contact between the outer circumferential surface of the protruding portion 6a and the guide surface 10a is released, and the lifting pawl 6 is lifted in this state. The base end of the claw 6 is brought into contact with the abutment member 8.

That is, the lifting case 2 is formed to have a wide hem, and the lower wheel 4 for rotating the lifting claw is pulled up and deviated to the lifting action side with respect to the case 2, so that the lifting case 2 is substantially raised and becomes inactive. By arranging the case 2 so that the side case surface is positioned further outward from the fuselage toward the bottom, the trigger claw 6, which takes a downward path while rising and rotating at the bottom of the case, can be moved from the non-operating side case surface. The amount of protrusion can be made small, and pushing down of the planted stem culm by the raising claws 6 can be avoided as much as possible.

Of course, by forming the smooth surfaces of the lifting action side and the non-action side of the lifting case 2 to be substantially parallel, and by providing the lower wheel body 4 offset to the action side,
It is possible to provide the same function as mentioned above, and for example, compared to a structure in which the lower part of the case surface on the non-active side of lifting is partially protruded to avoid pushing down the stem culm, manufacturing is easier and longer. can be raised to form the case 2 at low cost.

If the lower wheel body 4 is simply pulled up and deviated to the working side, a wide pawl rotation space will be created between the wheel body 4 and the inner surface of the case on the non-working side, so that the lower wheel body 4 will not be raised. As the chain 5 becomes more likely to swing in the width direction of the case, the base end of the lifting pawl 6 tends to ride on the abutment member 8, as shown in FIG. This increases the risk of the chain 5 being cut or the lifting pawl 6 being damaged.

However, as in the present proposal, the guide member 1 with a simple structure
By adding 0, such a situation can be avoided.

Further, the guide member 10 and the regulating member 11 are used to regulate the posture of the raising pawl 6 so that it can make good sliding contact with the abutting member 8. Before making sliding contact, it is raised to prevent it from protruding outward from the case 2, and on the other hand,
As described above, the regulating member 11 regulates the posture of the lifting claw 6 from swinging toward the stem culm lifting action side in the width direction of the lifting case before it comes into sliding contact with the abutment member 8.

In summary, the present invention provides the above-mentioned stem culm pulling device, in which the rotating wheel body and the abutting member are provided so as to be deviated toward the stem culm lifting action side in the width direction of the lifting case. , a guide member is provided between the guide member and the abutment member for regulating movement of the hoisting pawl outward in the hoisting case and guiding the hoisting pawl to the abutment member. Provided on the non-acting side of the stem culm pulling in the width direction of the lifting case in a state where a movement path of the pulling claw exists, and further, when the pulling claw is guided by the guide member, the pulling claw is A regulating member that restricts the swinging of the stem culm lifting action side on the tip side is placed in a position opposite to the guide member with the movement path of the lifting claw in between. The characteristic configuration is that it is provided at a position above the movement path on the non-active side of the motor.

That is, as detailed in the embodiment, since the rotating wheel and the abutting member on the lower side of the lifting case are provided so as to be deviated to the culm lifting action side, the stem culm lifting at the lower part of the case is moved to the non-working side. The amount of protrusion of the lifting claw can be reduced, and the pushing down of the planted stem culm due to the movement of the lifting claw to the stem culm lifting action side can be avoided as much as possible, and such function can be avoided. Compared to a structure in which a part of the non-active side case surface is protruded by raising the case surface, the case surface has a smooth structure, which makes it easier to manufacture and the case can be formed at a lower cost.

Furthermore, the guide member and the regulating member prevent the endless band from swinging and guide the lifting pawl to the contact member in a good posture, so damage to the endless band and the lifting pawl can be avoided and its durability can be improved. It has come to have effects such as being able to improve sex.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the stem culm pulling device according to the present invention, and FIG. 1 is an overall front view with the divided case removed, FIG. 2 is a cross-sectional plan view, and FIG. 3 is an explanatory diagram for comparing the present invention. . 2... Lifting case, 4... Rotating wheel, 6...
...Lifting claw, 8...Abutting member, 10...Guiding member, 11...Regulating member.

Claims (1)

[Scope of utility model registration request] A contact member 8 is provided on the lower side of the lifting case 2, which has smooth case surfaces on the working and non-working sides of the stem culm lifting, and at the lower part of the case, the lifting claw 6 is raised and rotated to the outside of the case. A stem culm pulling device is provided with a rotating wheel 4, in which the rotating wheel 4 and the abutment member 8 are biased toward the stem culm lifting action side in the width direction of the lifting case 2. and restricting the movement of the lifting claw 6 to the outside of the lifting case 2,
A guide member 10 that guides the raising claw 6 to the abutment member 8 is connected to the guide member 10 and the abutment member 8.
The guide member 10 is provided on the non-active side of the stem culm in the width direction of the lifting case 2, with a movement path of the lifting claw 6 existing between the guide member 10 and the guide member 10.
A regulating member 11 that restricts the swinging of the tip side of the lifting claw 6 toward the stem culm lifting action side in the guiding state of the lifting claw 6 is placed between the movement path of the lifting claw 6 and the above. A stem culm pulling device characterized in that it is provided at a position opposite to a guide member 10 and at a position higher than the guide member 10 in the moving path on the non-acting side of the pulling claw 6.