JPH0516903Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is used in a tying machine attached to a combine harvester or a self-propelled self-eliminating device, depending on whether there is straw on the feed chain or not. “Disconnect” power transmission
It is related to the configuration for "contact".

(B) Prior Art Conventionally, the technology of providing a clutch arm in the grain culm passage of a tying machine of a combine harvester or a self-propelled self-release device has been known. For example, Utsukai 57-
This technique is similar to the techniques described in Japanese Utility Model Publication No. 161327 and Japanese Utility Model Application Publication No. 176638/1983.

(c) Problems to be solved by the invention The present invention pivots the conventionally provided clutch arm downward in an overchain type feed chain so that the clutch arm is in the clutch "contact" position. In the case of rotation,
It is configured to double as a grain culm conveyance guide to improve the uptake of grain culms and straw and prevent grain culm leakage.

(ii) Means for solving the problem In view of the above, the present invention is configured as follows.

A rotation fulcrum 33 is provided on the side surface of the straw presser rod 24 or the straw presser stand 13 on which the straw presser rod 24 is erected, and a feed slides on the rotation fulcrum 33 in contact with the upper surface of the straw presser rod 24. A clutch arm 30 that protrudes to the chain 12 is pivotally supported, and the clutch arm 30 connects the power clutch of the tying machine 7 to "engage" when the grain culm passes through the feed chain 12.
The length is such that it rotates to the side and protrudes to a position intersecting the locus of the packer 19 at the rotated position, and also serves as a grain culm conveyance guide.

(e) Embodiment 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 a side view of the entire self-propelled self-ejection with a tying machine attached, Fig. 2 is a front view of the end of the feed chain and the tying machine, Fig. 3 is a front view of the straw presser, and Fig. 4 is a side view as well. It is.

To explain the overall configuration of the self-propelled self-extraction device in FIG.
An engine compartment 4 is arranged at the rear, and a foldable paddy bag stand 5 is arranged at the rear end.

A dust exhaust pipe 11 is protruded from the front end of the threshing device 3, a feed chain 12, a straw holding stand 13, etc. are arranged at the rear end, and a culm holding stand is arranged at the grain culm entrance side of the feed chain 12. Place the deck 6 at the exit on the opposite side.
and a binding machine 7 are attached.

Further, a grain lifting cylinder 8 is provided obliquely on the side surface of the threshing device 3, and a chute 10 is provided at the rear end.

As shown in FIG. 2, the binding machine 7 is mounted so as to be slidable back and forth on a frame 14 fixed to the side surface of the threshing device 3, so that the binding position can be adjusted.

The power is supplied from the output pulley protruding from the front side of the threshing device 3 to the input pulley 1 installed at the bottom of the deck 6.
5, and is transmitted from the input pulley 15 to the binding mission case 17 via the gear box 16, and drives the packer 19, needle 20, etc.

Further, the knot building 22 above the deck 6 and the discharge arm 18 are driven from the binding transmission case 17 via a transmission tube or chain case 21 arranged in a U-shape when viewed from the side.

As shown in FIGS. 3 and 4, the structure of the straw presser stand 13 is such that a straw presser rod 24 is located below the feed chain 12 and the clamping rod 23.
are pivotally connected to each other in a U-shape in cross section, and their lower surfaces are supported by shafts 25, 25, . . . at appropriate intervals.

The shafts 25, 25... are passed through the straw presser stand 13, and are pivotally supported by pins 26, 26...,
A spring 27 is fitted onto the shafts 25, 25, . . . and urges the straw presser rod 24 upward.

A clutch arm 30 is attached to the side surface of the straw holding table 13 for ``disconnecting'' and ``connecting'' the drive clutch of the tying machine 7, which is the essential part of the present invention.

That is, the mounting brackets 31, 31 are fitted onto the straw holding base 13 from below, and the arm base 32 is fixed to the mounting brackets 31, 31. And the arm stand 32
Clutch arms 30a, 30b, 30c on the side of
is pivotally supported on rotational supports 33, 33, 33.

The rotation fulcrum 33 is connected to the straw presser stand 13 and the straw presser rod 2.
It may also be provided in the section 4.

The clutch arms 30a, 30b, and 30c are configured in a dogleg shape, and the upper part projects upward from between the feed chain 12 and the clamping rod 23.
It intersects with the rotation locus of 9.

In this way, the clutch arm 30c on the binding machine side
Since the length is set to a position where it intersects the locus of the packer 19, it also serves as a guide to guide the straw passing over the clutch arm 30c on the binding machine side to the packer 19 side. be.

The lower end of the clutch arm 30 is pivotally supported by a connecting rod 34, and the discharge side end of the connecting rod 34 is connected to a clutch wire 36 via an elastic body (a spring 35 in the embodiment). The other end is guided into the gearbox 16 of the binding machine 7, as shown in Fig. 2, and the power of the binding machine 7 is cut off.
It is connected to the clutch that "contacts". 37 is a wire receiver.

(f) Function of the device With this configuration, when straw, etc. is conveyed from the threshing inlet while being held between the feed chain 12, the clamping rod 23, and the straw holding rod 24, the clutch arm 30
The clutch arms 30a, 30b, 30c are brought into contact with the pivot points 33, 30c in sequence.
3, 33, the clutch wire 36 connected to the connecting rod 34 that pivotally supports the lower end of the clutch arm 30 is pulled, and the clutch of the binding machine 7 becomes "connected", and the pack car 19 etc. The straw is driven and pushed into the bundling space, and when a certain amount of straw has accumulated, it is tied.

When the conveyance of straw is temporarily interrupted during the rotation, the clutch arms 30a, 30b, 30c return to their original positions due to the biasing force of the spring 35, the clutch wire 36 also returns to its original position, and the binding machine 7
The clutch becomes "disengaged" and the operation of the police car 19 and the like stops.

(G) Effects of the invention Due to the above-described structure and operation, the present invention has the following effects.

First, in an overchain type feed chain in which the feed chain 12 is arranged at the upper part and the straw presser rod 24 and the straw presser stand 13 are arranged at the lower part, the straw presser rod 24 and the straw presser table 13 at the lower part are A rotation fulcrum 33 is provided to pivotally support the clutch arm 30, and the clutch arm 30 is rotated by the passage of the grain culm.
With the clutch of the binding machine 7 turned to the "contact" side,
Since it extends to the rotation locus of the clutch arm 19, the grain culm can pass over the clutch arm 30, and the grain culm from the joint between the feed chain and the tying machine 7 can be removed. This will prevent the straw from falling. In addition, it was possible to improve the capture performance.

Second, when the tying machine 7 is removed, the clutch arm 30 is moved by the spring to hold the straw presser rod 24.
Since it is attracted to the stowed state on the side of the grain guide, it does not remain protruding from the feed chain and comes into contact with obstacles like the conventional grain culm guide.

[Brief explanation of the drawing]

Fig. 1 is a side view of the entire self-propelled self-ejection with a tying machine attached, Fig. 2 is a front view of the end of the feed chain and the tying machine, Fig. 3 is a front view of the straw presser, and Fig. 4 is a side view as well. It is. 7... Binding machine, 12... Feed chain, 1
3... Straw presser stand, 24... Straw presser circle, 30... Clutch arm, 33... Rotating fulcrum, 35... Spring, 36... Clutch wire.

Claims (1)

[Scope of utility model registration request] A rotation fulcrum 33 is provided on the side surface of the straw presser rod 24 or the straw presser stand 13 on which the straw presser rod 24 is erected, and a feed slides on the rotation fulcrum 33 in contact with the upper surface of the straw presser rod 24. A clutch arm 30 that protrudes to the chain 12 is pivotally supported, and the clutch arm 30 connects the power clutch of the tying machine 7 to "engage" when the grain culm passes through the feed chain 12.
A clutch mechanism for a tying machine, characterized in that it rotates to the side and has a length that projects to a position intersecting the locus of a bundler 19 at the rotation position, and also serves as a grain culm conveyance guide.