JPH0510574Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improved structure of a grain culm lifting device in a harvesting device such as a combine harvester or a binder.

[Conventional technology]

Conventionally, as the grain culm lifting device of the reaping device, the fourth
As shown in the figure, an endless chain 8 in which a number of claws 7 for lifting grain culms are pivotally attached is stretched in a case 2 consisting of a pair of upper and lower cases 2a and 2b, and a claw protruding opening through which the claws 7 rise and rise. 2c and a dust exhaust port 2d in the descending path 4 which is lowered and lowered, and a contact member 10 made of a rubber material or the like is provided at the top where the claw 7 is rotated to be lowered.
A device in which the outer side of the lifting device 1 is covered with a cover 14 of the reaping device which is wide in the forward direction has been adopted and implemented as a simple and inexpensive structure.

[The problem that the invention attempts to solve]

In the above-mentioned conventional lifting device, since the large dust exhaust port 2d is formed on the side of the descending path 4 of the claw, the debris that tends to accumulate inside the case 2 can be discharged extremely well. However, since the claw 7 that moves while protruding from the dust exhaust port 2d comes into contact with the cover 14 frequently,
There are problems with noise and damage to nails, etc.

In order to prevent this drawback, an attempt has been made to attach a rubber plate to the inner surface of the cover 14 facing the descending path 4, but even in this case, the claws 7
There is a problem in that the impact when the contact member 10 contacts the inner surface of the cover 14 in the direction of its lodging cannot be smoothly absorbed.

Moreover, when the cover 14 is removed and reassembled, the claws 7 protrude outward under their own weight in the lowering path 4, so while the claws 7 are being brought down one by one in the direction along the chain 8, the cover 14 is 14
This has the disadvantage of requiring complicated maintenance work and inefficient work.

Therefore, in view of the above-mentioned circumstances, the present invention solves the problems of conventional devices at once by improving the shape of the abutment member and the structure of the abutment member for the dust exhaust port, and provides a high-performance grain culm. It is an object of the present invention to provide a grain culm lifting device capable of carrying out the lifting operation with a simple structure and at a low cost.

[Means to solve the problem]

In order to achieve the above object, the present invention accommodates an endless chain 8 to which a lifting claw 7 is attached in a manner that it can be raised and lowered in a case 2 consisting of a pair of upper and lower cases 2a and 2b, and a lifting claw 7 that can be raised and lowered on one side of the case 2. The dust exhaust port 2d is opened by opening a lifting path 3 in which the claw 7 stands up and goes up, and a descending path 4 on the other side that is wide enough to allow the lifting claw 7 to fall down and descend with its tip protruding. form,
On the upper part of the case 2, there is a contact for turning and lowering the claw, which is formed in a curved shape along the turning locus of the claw 7, so that a part of it protrudes from the dust exhaust port 2d from the top where the raising claw 7 turns. a contact head 10A; and a guide band 10B that is continuous with the contact head 10A and is located outside the dust exhaust port 2d and guides the raising claw 7 along the descending path 4.
This is a grain culm lifting device in which the dust exhaust port 2d and the guide band 10B are covered from the side with a cover 14 that can be detached or opened and closed.

〔Example〕

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

As shown in FIG. 3, reference numeral 1 denotes a lifting device that is attached to the front of a reaping device B of a harvester A such as a binder or a combine harvester to lift up grain culms planted in a field.

Reference numeral 2 denotes a lifting device case consisting of upper and lower cases 2a, 2b (FIG. 2). The pair of upper and lower cases 2a, 2b are each produced by press molding using a single press die having approximately the same shape. When these cases are opposed to each other and assembled, they form a claw-projecting opening 2c for the lifting path 3 on one longitudinal side and a dust outlet 2d for the lowering path 4 on the other side.

Inside the lifting device case 2, a lifting claw 7 is provided between the driving wheel 5 and the driven wheel 6 provided above and below.
A rotatably pivoted chain 8 is suspended at a large number of intervals, and a guide plate 9 is provided on the lifting path 3 side to guide the base of the claw 7 in an upright state, and At the end (top) of the lifting path 3, a contact head 10A made of an elastic synthetic resin material and formed in a substantially arc shape for guiding the claw 7 in turning and falling is removably provided with a fitting 11.

In the embodiment, the contact head 10A is in case 2.
The end portion 12 attached to the holder faces the turning trajectory of the claw 7, is curved along the turning trajectory of the claw 7, and is extended to the starting end of the descending path 4 outside the case 2. A belt-shaped guide strip 1 extends downward from the starting end.
0B is integrally molded, and the guide band 10B is removably attached 15 to a cover 14 that covers the outside of the case 2, or to the case 2 at a suitable location at the middle or lower end using an appropriate attachment means.

The cover 14 has an engagement tool 16 fixed to its inner surface,
It is configured to be removably fixed to a locking tool 17 protruding from the case 2, so that the vicinity of the dust exhaust port 2d on the side of the case 2 can be easily and detachably covered.

Reference numeral 18 denotes an upper cover that extends horizontally between the left and right lifting devices 1, 1 and covers the upper side thereof, and is easily attachable and detachable like the cover 14 provided on the side surface.

[Functions and effects of the idea]

Therefore, the operation of raising and reaping a planted grain culm using the reaping device B equipped with the raising device 1 having the structure of the present invention is carried out as follows.

That is, in the present invention, an endless chain 8 to which a raising claw 7 is attached so as to be able to rise and fall freely is housed in a case 2 consisting of a pair of upper and lower cases 2a and 2b, and the raising claw 7 stands up on one side of the case 2. The rising lifting path 3,
Further, on the other side, the lifting claw 7 is laid down, and a descending path 4 having a width that allows it to descend with its tip protruding is opened to form a dust exhaust port 2d. The abutment head 10A for turning and lowering the claw is formed in a curved shape along the turning locus of the claw 7 so that a part thereof protrudes from the dust outlet 2d from the top part where the claw turns.
The dust exhaust port 2 is connected to the contact head 10A.
d and a guide band 10B that guides the raising claw 7 along the descending path 4,
The dust exhaust port 2d and the guide band 10B are covered from the side with a cover 14 that can be detached or opened and closed.

Therefore, as the chain 8 rotates, the claw 7 is guided by the guide plate 9 on the lifting path 3 side and stands up, thereby properly lifting the grain culm.

Then, the claw 7 comes off the guide plate 9 and reaches the end of the lifting path, and when it falls down and turns, the tip of the claw 7 comes into contact with the contact head 10A, and its posture is turned upward along the chain 8. However, from then on, the grain culm can be raised continuously by being guided in sliding contact with the guide band 10B located outside the dust exhaust port 2d and brought into the upright position again at the lower part of the descending path 4.

At this time, the claw 7 brings the straw and mud attached to it into the case 2 as it is lifted.
These debris will be removed as the claw 7 changes its position, and the lower case 2a, 2b will be removed from the lower case 4.
A dust exhaust port 2d from which the tip of the claw 7 protrudes is formed between the gap and the guide band 10B to form a dust exhaust gap 2e (FIG. 1).
Because of this, these debris are quickly discharged from the dust exhaust port 2d and the dust exhaust gap 2e, and are prevented from clogging the case 2.

In addition, the claw 7 is smoothly guided from the time of turning to the descending path 4 by the contact head 10A and guide band 10B that are integrally formed, and since it does not contact the cover 14 directly, damage and noise are reduced. This will be even more effective if a gap 19 (FIG. 1) is provided between the guide band 10B and the cover 14.

Then, when maintenance is required inside the case 2 and the cover 14 is removed and the cover 14 is reassembled, the claws 7 tend to stand up and protrude outward due to their own weight, but this is pressed by the guide band 10B. Nail 7
It is convenient to be able to easily assemble the cover 14 while maintaining the cover 14 in a laid down position along the chain 8, and it also has the effect that maintenance work can be performed efficiently.

[Brief explanation of drawings]

FIG. 1 is a front view in cross section of a lifting device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of main parts taken along line A-A in FIG. 1, FIG. The figure is a front view showing a cross section of a conventional lifting device. 1...Triggering device, 2...Triggering device case, 2
a, 2b...upper and lower cases, 2c...protruding opening,
2d... Dust exhaust port, 2e... Dust exhaust gap, 3... Lifting route, 4... Descending route, 5... Driving wheel, 6... Driven wheel, 7... Pulling claw, 8... Chain, 9 ... Guide plate, 10A ... Contact head, 10B ... Guide strip,
DESCRIPTION OF SYMBOLS 11... Attachment, 12... Head, 14... Cover, 15... Attachment, 16... Engagement tool, 17... Locking tool, 18... Upper cover, 19... Gap.

Claims (1)

[Scope of utility model registration request] An endless chain with a lifting claw attached to it that can be raised and lowered freely is housed in a case consisting of a pair of upper and lower cases, and a lifting path for the lifting claw to rise and rise is formed on one side of the case, and the lifting claw is placed on the other side of the case. A dust exhaust port is formed by opening a descending path wide enough to allow the case to fall down and descend with its tip protruding, and a part of the upper part of the case extends from the top where the lifting claw turns. A contact head for turning and lowering the claw is formed in a curved shape along the turning locus of the raising claw so as to protrude, and a contact head is located outside the dust exhaust port continuously from the contact head and is lowered. A grain culm pulling device, which integrally forms a guide band that guides a pulling claw along a route, and covers the dust outlet and the guide band from the side with a cover that can be detached or opened and closed.