JPS596662Y2 - agricultural binding machine - Google Patents

Description

[Detailed description of the invention] Generally, the door of an agricultural binding machine is pressed by a constant pressure spring installed in the case so that it rotates when a predetermined amount of stem culms are bundled by a bundler. is adjusted to be suitable for binding the husks of rice, wheat, etc.

However, when crops with fragile stems such as soybeans or adzuki beans are harvested and tied using this binding machine, the pressing force is too great, causing the stems to break and fall off along with the half-grown seeds, resulting in a loss of yield.

If you try to adjust the constant pressure spring to prevent this,
This is extremely troublesome as it requires disassembling the case.

The present invention aims to provide an agricultural tying machine that can extremely easily adjust the door pressure to the most suitable for the characteristics of crops externally without disassembling the case and adjusting the constant pressure spring. , a spring that acts in the opposite direction to the direction of action of the constant pressure spring housed in the case on the door is placed between the outside of the case housing the door operating mechanism and the door or a mounting part that rotates with it. The device is characterized in that it is attached so that it can be adjusted to a non-active state and a non-active state.

The embodiments shown in the drawings will be explained in more detail below.
1 is a notter building 2, a node A with a holder, etc.;
This is a collecting culm part provided between the collecting part B consisting of a packer 3, a twenty-one dollar 4, etc., and the door 5 protrudes into the collecting part 1 from a case 6 of the collecting part B.

The door 5 is fixed to the clutch shaft 7 via a mounting plate 8, and the door link 9 fixed to the lower part of the clutch shaft 7 has a pin 12 at the base of a movable arm 11 having a roll 10 at the tip. Roll 1 is connected so that it can rotate.
0 is in sliding contact with the circumferential surface of a cam plate 14 attached to the timing shaft 13.

Reference numeral 15 denotes a constant pressure spring, and a rod 19 and one end of a stopper 20 are pivotally connected to the tip of an operating rod 18 whose end is passed through a fixed support plate 16 and fixed with a nut 17. The other end of the rod 19 is connected to the distal end of the movable arm 11 together with the roll 10 by a pin 21, and the intermediate portion of the stopper 20 is loosely fitted onto the clutch shaft 7.

The door link 9 to the stopper 20 and the like described above have the same structure as conventional ones, and are housed in the case 6.

A tension spring 22 is tensioned between the mounting plate 8 integrated with the door 5 and the receiver 23 fixed to the side plate 6a of the case 6 on the bundle release side. 22 outer end is connected to the receiver 23 via the adjusting screw 24.
It is installed on.

Therefore, while the constant pressure spring 15 biases the door 5 counterclockwise in FIG. 2, the tension spring 22 biases the door 5 clockwise. Weaker than constant pressure spring 15.

Note that 25 in the drawing is a cutting blade.

When binding the culms of rice, wheat, etc. using the above-mentioned binding machine, adjust the tension spring 22 to a state where there is no tensile force using the adjusting nut 24', and when harvesting and binding crops with fragile stems such as soybeans or adzuki beans, use the above-mentioned method. When the tensioning force of the tension spring 22 is increased by turning the adjustment nut 24', the door pressure is reduced by that amount, so when the stalks of soybeans or adzuki beans are relatively weakly compressed by the packer 3, the door 5 is activated and the stopper is 20 is removed, the timing shaft 13 rotates once, and the binding is performed.

As mentioned above, the present invention has a structure in which there is a
The spring, which acts in the opposite direction to the direction of action of the constant pressure spring housed in the case on the door, is installed so that it can be adjusted between an operative state and a non-operative state, so that it can be used to operate the door, needle, police car, etc. There is no need for the troublesome work of disassembling the case housing the various transmission mechanisms and adjusting the constant pressure spring, and it is extremely simple to adjust the spring that acts in the opposite direction to the constant pressure spring outside the case. By simply doing this, the door pressure can be reduced, and the binding machine that normally binds husks such as rice and wheat can be applied to bind crops with fragile stems such as soybeans and adzuki beans.

Moreover, since normal cane tying can be performed by putting the spring in a non-acting state, a spring that acts in the opposite direction to the direction in which the constant pressure spring acts on the door is installed in the existing agricultural tying machine that has been used conventionally. By that,
The door pressure can be adjusted to be much lower and can be easily and inexpensively modified to allow crops with fragile stems to be tied together.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, with FIG. 1 being a plan view and FIG. 2 being a perspective view of the main parts. 1... culm, 3... patsukar, 5...
...Door, 6...Case, 8...
・Mounting plate, 15...Constant pressure spring, 22...
...Tension spring, 23... Receiver, 24
...adjustment nut, 24'...adjustment nut.

Claims (1)

[Scope of utility model registration request] A spring that acts in the opposite direction to the direction of action of the constant pressure spring housed in the case on the door is placed between the outside of the case housing the door operating mechanism and the door or a mounting part that rotates together with the door. An agricultural binding machine characterized in that it is installed so that it can be adjusted to a non-operating state.