JPS5851707Y2 - Agricultural binding device - Google Patents

Description

[Detailed description of the invention] The present invention includes a waste straw binding device connected to the waste straw of a threshing device, a knot building and a tie string holder on one side of the bundling space, and a bundling string holder on the other side of the bundling space. A string supply needle is disposed, and a string guide plate having a string guide groove for passage of the needle is provided on the binding space side of the knot building and the binding string holder, and the knot rotation of the building causes the binding string to This agricultural binding device is provided with a string locking protrusion protruding into the string guide groove that locks and holds the binding string until it is gripped by the building, and prevents the binding string from accidentally moving when the knot is activated. The string locking protrusion is placed at a position near the bundle release side so that its tip part closes the guide groove to temporarily restrict the movement of the strap, and as the bundle is released, the guide This invention relates to an elastic rod for locking a string that is elastically displaced to open a groove and release the string.

In conventional agricultural binding devices, the elastic rod for string locking extends through a small hole formed in the string guide plate so as to close the guide groove. No matter how long the overall length of the elastic rod is, the actual effective working length is only short at the portion that protrudes from the small hole, so in order to ensure the desired string locking and holding function by this elastic rod, If this is done by making a material with sufficient flexibility, this will worsen the ability of the string to separate from the elastic rod when the bundle is released, causing abnormal tension to be applied to the string, resulting in breakage of the string, etc. There was a drawback that it was easy to cause trouble.

In view of these points, the present invention uses simple structural improvements to ensure that the elastic rod performs the desired string locking function, while also making it easier for the string to separate from the elastic rod when the bundle is released. and,
The purpose is to ensure that it can be carried out reliably.

The agricultural tying device according to the present invention is provided with an elastic rod to ensure the tying action as explained at the beginning, and the above-mentioned elastic displacement and elastic return of the elastic rod for securing the string is controlled by the elastic rod. The tip and the attachment are characterized in that a long hole for guiding is formed in the middle part between the base and the string guide plate. Specifically, according to the present invention, the elastic rod is made of a sufficient length. Therefore, in order to ensure that the elastic rod holds the desired string, even if a relatively hard elastic rod is used, the length of the elastic rod can provide sufficient flexibility to the elastic rod. In addition, in this way, the elastic rod can be given sufficient flexibility to cause large elastic deformation, and the long hole allows the elastic rod to swing and cause the string to unexpectedly detach during the deformation. It is possible to smoothly and accurately elastically deform the material in a predetermined direction.

Therefore, by making a simple structural improvement such as guiding the middle part of the elastic rod with a long hole, the elastic rod can securely hold and hold the string at the time of tying, and while this tying action can be performed reliably, the tied material can be released. In some cases, it has been possible to smoothly and reliably remove the string from the elastic rod without any troubles such as breakage of the string.

Hereinafter, embodiments of the present invention will be explained based on the drawings.
This is a waste straw tying device 11 for tying and discharging a fixed amount of waste straw sent out from a threshing device 10 in a combine harvester in a horizontal position. is held, the binding string supplying needle 4 arranged on the other side of the binding space 1 is swung back and forth once, thereby wrapping the binding string around the waste straw that has been bundled in a fixed amount in the binding space 1, By rotating the knot building 2 arranged on one side of the binding space 1, the end portion of the string is wrapped around the base end of the knot building 2, and the string is tightened by the building 2 during rotation. Then, as the waste straw is discharged, the ring part of the binding cord wrapped around the base of the building 2 is released from the tip of the building 2, and the edge part held by the building 2 is attached to the tip of the building 2. By inserting the looped part of the string that has been removed from the handle, the string wrapped around the waste straw can be knotted.

A string guide plate 6 having a string guide groove 5 for passing and moving the needle 4 is provided on the side of the binding space 1 between the building 2 and the holder 3. The binding string is held in the building 2 by the knot rotation of the building 2, so that the binding string is locked and held, and when the building 2 is held in its grip, the locking and holding is automatically released. A string locking protrusion 7 is provided, and furthermore,
The tip portion 8a of the string locking protrusion 7 closes the guide groove 5 at a position near the bundled straw discharge side, temporarily restricting the movement of the tied string detached from the string locking protrusion 7, and ,
An elastic rod 8 for locking a string is provided which is elastically displaced to open the guide groove 5 and release the lock of the string as the bundled straw held in the string is released by the building 2.

The elongated hole 8 that guides the elastic displacement and elastic return of the elastic rod 8 is inserted into the binding space at the intermediate portion between the distal end 8a of the string-locking elastic rod 8 and the attachment base 8b. 1
It is formed in a plate-like member 6A that is connected to the string guide plate 6 in a side-projecting state.

Incidentally, the outer edge 6a of the upper discharge portion of the plate member 6A is as follows:
It acts as a guide to move and guide the discharged waste straw so that it does not come into contact with the elastic rod 8.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the agricultural binding device according to the present invention, and FIG. 1 is a side view showing how it is attached to a combine harvester, and FIG.
The figure is a partially cutaway enlarged side view of the main part showing the nodule state,
The figure is a partially cutaway enlarged side view of the main part showing the discharge state,
The figure is a sectional view taken along the line IV-IV in FIG. 2. 1... Binding space, 2... Nodal building, 3
..... Binding string holder, 4..... Needle for supplying the binding string, 5..... String guide groove, 6.....
- String guide plate, 7... String locking protrusion, 8a...
...Elastic rod tip, 8...Elastic rod 1.8b...
...Mounting is at the base, 9...long hole.

Claims (1)

[Scope of utility model registration request] A knot building 2 and a knot holder 3 are arranged on one side of the bundling space 1, a knot supplying needle 4 is arranged on the other side of the bundling space 1, and the knot building 2 and the knot holder 3 are arranged in the bundling space 1
A string guide plate 6 having a string guide groove 5 for the passage movement of the needle 4 is provided on the side, and the binding string is locked until the binding string is gripped by the building 2 by the knot rotation of the building 2. The agricultural binding device is provided with a holding string locking projection 7 protruding into the string guide groove 5, and the tip end 8a of the string locking projection 7 is located near the bundle release side. A cord locking device that temporarily restricts the movement of the binding cord while blocking the guide groove 5, and elastically displaces to release the cord by opening the guide groove 5 as the bundle is released. An elastic rod 8 is provided, and a long hole 9 is provided in the string guide plate 6 to guide the above-mentioned elastic displacement and elastic return of the string-locking elastic rod 8 at an intermediate portion between its tip 8a and the mounting base 8b. An agricultural binding device characterized by forming.