JPS6140107Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention bends the upper end sides of the pair of left and right lifting cases so that the lifting path has a path portion where the terminal end side curves away from the feed chain when viewed from the front. A pulling device for a planted stem culm is configured, and in order to lower the upper end side of the reaped stem culm to the side opposite to the feed chain in the curved path portion of the lifting path, from a lifting case on a side far from the feed chain. The present invention relates to a harvesting machine in which a pulling claw projects toward the curved path portion, and a contact sensor for detecting culm length is disposed near the lifting device.

For example, by changing the harvested stem culm to a sideways posture and tying it or threshing it, etc.
In order to change the posture of the reaped stem culm to fall sideways, it is possible to give the stem culm the directionality of falling sideways by applying a lodging force that wraps around the stem culm using a pulling device. Although the device can be omitted, the stem culm itself tends to correct its curvature, and the stem culm tends to lift up and move toward the tip of the nail. When it is rolled up and laid down on the side, it is no longer possible to make the lodging angle large, and it is difficult to provide sufficient directionality in the direction in which it falls sideways.

The technical problem to be solved by the present invention is to use the relative contact of the contact sensor for detecting culm length with the reaped stalk culm to lift the reaped stalk culm and forcibly move it to the proximal end of the pulling claw of the device. The point is to encourage the lodging of people.

The technical means taken to solve the above technical problem is that the upper ends of the pair of left and right lifting cases have a lifting path with a path portion whose terminal end curves away from the feed chain when viewed from the front. The side is bent to form a lifting device for planted stems,
and in order to cause the upper end side of the reaped stem culm to lie down on the opposite side of the feed chain in the curved path portion of the pulling path, a lifting claw is protruded from a lifting case on a side far from the feed chain toward the curved path portion. In addition, a contact sensor for culm length detection...
... is disposed near the lifting device, wherein the sensor is pivoted at its base end on the side of the lifting case located on the opposite side to the lodging direction of the tip of the reaped stem and culm, and , the distal end side thereof is arranged so as to protrude into the curved path portion of the lifting path.

The above technical means works as follows.

The sensor is disposed on the lifting case side opposite to the direction of lodging of the stem culm, with its tip end facing into the curved path part, so that the cut stem culm supplied to the curved path part of the pulling path is is pressed by relative contact with the sensor and is forcibly transferred to the proximal end of the lifting claw of the lifting device.

Therefore, the present invention has the following effects.

The reaped stem culm is pressed by the sensor in the curved path and is forcibly transferred to the proximal side of the pulling claw.
The reaped stem culm can be wrapped around the claws in a state where it is difficult for it to come off, and the lodging can be further increased. Reaping can be done simply by installing a contact sensor for detecting the length of the culm in the curved path of the lifting device. It has been possible to increase the lodging angle of the stem culm and provide sufficient directionality.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

A threshing section 2 is mounted on a crawler traveling body 1, a control section 4 is disposed on the side of the threshing section 2 on the side of the feed chain 3, and a reaping pretreatment device 5 is disposed in front of the threshing section 2. A harvesting machine is constructed by setting the following.

The reaping pre-treatment device 5 has its raising path A.
However, on the terminal side, the feed chain 3
A pulling device 6 having a path portion B that curves away from the culm is attached to a frame 7 that changes its position up and down around the horizontal axis, and near the ground at the back of this pulling device 6, a device for connecting the pulled stems and culms is installed. A pair of puckers 8 and a reaping device 9 are provided, and a device 10 is also provided that holds the reaped stem culm at its base side and feeds it to the feed chain 3, thereby connecting the terminal side curved path of the pulling device 6. At B, the upper end side of the reaped stem culm is rolled up to the side opposite to the feed chain 3 and laid down, and the reaped stem culm is moved by the above-mentioned plant head clamping and conveying device 10 and the guide 11 that receives and guides the upper end side of the reaped stem culm. The structure is such that the grain is fed to the threshing section 2 after changing its posture to lie sideways.

The lifting device 6 is composed of a pair of left and right lifting cases 6a and 6b each having lifting claws 6', and a lifting path A is formed between both the lifting cases 6a and 6b. , when viewed from the front, the upper end sides of both the lifting cases 6a and 6b are bent away from the feed chain 3, and the terminal side of the lifting path A is connected to the stem culm tip side. This constitutes a curved path portion B that is laid down on the side away from the feed chain 3.

The clamping start position of the stock clamping and conveying device 10 is
A fluid pressure cylinder 12 is interposed between this conveying device 10 and the frame 7, and the stem culm is removed by the lifting device 6. A sensor 13a for detecting the presence or absence of a stem culm and three sensors 13b for detecting culm length are arranged on the front side of the lifting case 6a on the opposite side to the sideways direction, and are arranged in the curved path portion B of the lifting path A. The sensors 13a, 13b... and the control section of the cylinder 12 are linked to constitute a mechanism 14 that automatically adjusts the handling depth in the threshing section 2 based on information from the sensors 13b... There is.

The culm length detection sensor 13b... is an elastic return swing type contact sensor, and its tip side is placed in the curved path portion B of the lifting path A and protruding into the proximal end of the lifting claw, It swings backward due to the contact with the stem culm, and its elastic restoring force lifts the reaped stem culm and presses it against the proximal end of the claw, thereby facilitating the horizontal fall of the reaped stem culm by the lifting device 6. It is configured to act in a direction.

That is, the culm length detection sensor 13b...
The reaped stem culm in the lifting curved path portion B is laid down at a large angle of inclination at the proximal end of the lifting claw, so as to provide sufficient directionality of the cutting culm sideways.

FIG. 3 shows a modification of the sensor 13b, in which the sensor 13b is configured to return to its swinging position with a small biasing force, and a stopper 15 restricts the backward swinging position due to the pressure applied to the stem culm. The position regulating posture is set so that the stem culm in contact with the stem culm is moved in a direction that promotes sideways overturning by force component action.

The sensor 13b is returned to its original position around the tilt axis by its own weight, and the backward swing is prevented by the stopper 1.
It is possible to make various modifications to the sensor structure that promotes sideways overturning of the stem culm, such as regulating it by 5.

[Brief explanation of the drawing]

The drawings show an embodiment of the harvesting machine according to the present invention. Figure 1 is a side view of the front part of the harvesting machine, Figure 2 is a front view of the lifting device, and Figure 3 is a plan view showing the deformed structure of the sensor. be. 2... Threshing department, 3... Feed chain, 6...
...Drawing device for planted stem culm, 6a, 6b...Drawing case, 6'...Driving claw, 13b...Culm length detection sensor, A...Drawing path, B...Curved path portion B.

Claims (1)

[Claims for Utility Model Registration] The upper end sides of the pair of left and right lifting cases 6a and 6b are arranged so that the upper end sides of the pair of left and right lifting cases 6a and 6b have a lifting path A having a path portion B whose terminal end side curves in a direction away from the feed chain 3 when viewed from the front. The raised stem culm is bent to form a lifting device 6 for the planted stem culm, and in order to lower the upper end side of the reaped stem culm to the side opposite to the feed chain 3 in the curved path portion B of the pulling path, Far side lifting case 6
In the harvesting machine in which a pulling claw 6' projects from b toward the curved path portion B, and a contact sensor 13b for detecting culm length is disposed near the lifting device 6, the sensor 13b...
..., with its proximal end pivoted to the lifting case 6a side located on the opposite side to the lodging direction of the reaped stem culm tip side, and its tip side thrust into the lifting path curved path portion B. A harvesting machine has been set up. The harvesting machine according to claim 1, wherein the sensors 13b are of an elastic return swing type.