JPH0114101Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides an endless rotation band which pivotally connects stem culm locking claws so as to be able to swing up and down, and is rotatable in the vertical direction.
A guide portion for maintaining the locking claw in an upright position is provided in the rotation path from the lower side to the upper side of the endless rotation band, and a locking claw spaced apart from the guide portion is provided above the guide portion. The present invention relates to a stem culm lifting device equipped with a stopper that forcibly switches to a lodging posture by abutment.

The above-mentioned device is configured so that as the locking pawl moves away from the guide part, it automatically switches to the lying position, but due to resistance in the pivoting part, etc. A stopper is provided to ensure that the locking pawls are switched to the laid down position. However, when the stopper is rotated, the upright locking claw comes into contact with the stopper and is forced to fall down, so if the locking claw collides with another object, the impact force is large and there is a risk of damage. Therefore, as shown in FIG. 4, conventionally, the locking pawl 33 collides with the guide rail 31 when it comes into contact with the stopper 32 above the upper end of the guide portion made up of the guide rail 31. It was equipped with a space S where you could do it without having to worry about it. As a result, in addition to the originally necessary raising path, it is necessary to secure a space S for allowing the above-mentioned claw to fall down, resulting in the drawback that the vertical length of the lifting device 34 becomes large.

SUMMARY OF THE INVENTION In view of the above-mentioned points, it is an object of the present invention to avoid damage to the locking pawl that is forced to fall down by the stopper, and to make the lifting device compact.

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

A pair of left and right pulling devices 1, 1 for pulling up planted stem culms in the field, a reaping device 2 for reaping the raised stem culms,
A vertical conveyance device 4 that conveys the cut stem culm to the rear of the machine, changes its posture to a sideways posture, and delivers it to the feed chain 3; and a threshing device that performs threshing while being held and conveyed by the feed chain 3. 5,
It is connected to a traveling vehicle body including a crawler traveling device 6 and a control section 7 to form a combine harvester.

Each of the above-mentioned lifting devices 1, 1 is constructed by connecting a chain 9, in which the stem culm locking claws 8 are pivotally connected so as to be able to swing up and down, to a sprocket 10 on the lower end side and a pair of left and right sprockets 11a, 11b on the upper end side. Chain 9 and sprocket 1
0, 11a, and 11b are covered with a case 12, and
A guide portion 13 is provided to maintain the locking pawls 8 in an upright position in the path where the chain 9 connects from the lower end sprocket 10 and rotates from below to the upper side. In the rotation path to the case 1, the locking claw 8...
It is configured so that it can be rotated in an outwardly protruding posture through an opening 14 formed on the two lateral sides, and the stem culm can be locked and pulled up.

A stopper 15 made of an elastic material is attached above the sprocket 11a on the side closer to the opening 14 of the upper sprockets 11a, 11b, and the locking pawls 8 separated from the guide portion 13...
Even if it is not laid down, it is configured so that it comes into contact with the stopper 15 and is forcibly switched to the laid down position.

The guide portion 13 is constructed by providing a guide rail 16 that is continuous with the rotation locus of the chain 9 on the lower end sprocket 10, and a buffer body made of an elastic material such as rubber, which is connected to the upper end of the guide rail 16. 17 is attached, and the buffer body 1
7 near the top of the opening side sprocket 1.
1a, and the stopper 15 is arranged above the opening side sprocket 11a, and the stem culm locking pawl 8, which is forcibly brought down by contact with the stopper 15, is elastically received by the buffer body 17. It is designed to stop it.

For example, a belt may be used in place of the chain 9, and these belts are collectively referred to as an endless rotating belt 9.

The buffer body 17 is not limited to the one configured as in the above-described embodiment, but may be configured to be rotatable, for example.

The present invention is applicable not only to the pulling device 1 in a combine harvester as described above, but also to the pulling device 1 in various stem and culm reapers such as a binder.

In summary, the present invention provides the above-mentioned stem culm pulling device in which the guide portion 13 is configured by:
A buffer body 17 is provided in series with the upper end of the guide rail 16, and the stopper 15 is arranged in such a manner that the buffer body 17 receives the latching claw 8 which is laid down. do.

That is, the upper end of the guide part 13 that forms the original standing path is configured with the buffer body 17, and the stopper 1
Stem culm locking claw 8 forced to fall down due to contact with 5
is received by the buffer body 17, and thereby, even though the locking claw 8 that is forcibly laid down collides with the guide part 13, damage due to the collision can be avoided, and damage to the locking claw 8 that is forced to fall down can be avoided. Although the collision can be avoided, the guide unit 13 determines the path length for collision avoidance.
The lifting device 1 does not need to be secured above the upper end of the
It has been possible to make the vertical length smaller and more compact.

As a result of being able to downsize the hoisting device 1, the lower end of the hoisting device 1 remains approximately at a constant ground level, so the hoisting device 1 is positioned low, and the lifting device 1 is positioned over the top of the hoisting device 1. Improved forward visibility when looking at the front of the aircraft.

[Brief explanation of the drawing]

The drawings show an embodiment of the stem culm pulling device according to the present invention, FIG. 1 is a partially omitted side view of a combine harvester, FIG. 2 is a partially cutaway front view of the pulling device, and FIG. 3 is a partially cutaway side view of the combine harvester. 4 is a partially cutaway front view showing a conventional example. 8... Stem culm locking claw, 9... Endless rotation band, 13... Guide portion, 15... Stopper, 16... Guide rail,
17...Buffer.

Claims (1)

[Scope of utility model registration request] An endless rotation band 9 in which stem culm locking claws 8 are pivotally connected in a vertically movable manner is provided to be rotatable in the vertical direction, and in a rotation path from the lower side to the upper side of the endless rotation band 9, A guide part 13 is provided for maintaining the locking pawl 8 in an upright position, and a stopper 1 is provided above the guide part 13 for forcibly switching the locking pawl 8 separated from the guide part 13 to a lying position by abutting it.
The stem culm lifting device is equipped with a stem culm pulling device 5, in which the guide portion 13 is constructed by providing a buffer body 17 in series with the upper end of the guide rail 16, and by which the stopper 15 is attached to the lowered part of the stem culm lifting device. A stem culm lifting device characterized in that a retaining claw 8 is arranged so as to be received by the buffer body 17.