JPH0115328Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention aims to make the tying device itself more compact by improving the mounting position of the tying string holder, and also to prevent the accumulation of straw, etc. on the tying string. It is related to the device.

Attach a binding machine to the culm discharge port side of the combine,
Conventional combine harvester binding devices (commonly known as knotters), which tie the waste culm after threshing into predetermined amounts and discharge it to the field, generally have a holder that accommodates the binding cord attached to one side of the knotter body. However, the width of the knotter had to be correspondingly larger, and the holder itself was shaped like a basket with an open top to make it easier to load and thread the ties, making it dustproof. Since no special cover is provided, straw debris and the like tend to fall and accumulate inside the holder, which has the disadvantage of interfering with the smooth unwinding of the binding cord.

The present invention has been made to solve the above-mentioned drawbacks, and is directed to a combine tying machine that is provided with a culm transfer device from the culm discharge side of the tying machine body toward the direction of discharge into the field. A guide cover for guiding the tip side of the bundled culm is provided between the tying machine main body and the transfer device, and the holder for the tying cord is placed in the space below the guide cover in the string insertion hole for feeding out the culm. By mounting the knotter so that it can be fixedly moved up and down around the rotation fulcrum provided on the opposite side, the space below the guide cover that guides the tip side of the bundled culm can be effectively utilized, making the knotter body as compact as possible. In addition, the guide cover not only acts as a guide for the bundled culm, but also acts as a dustproof cover for the tied string loaded in the holder, reliably eliminating the inconvenience of straw debris falling and accumulating inside the holder, and allowing the string to be fed out. It is an object of the present invention to provide a tying device for a combine harvester that can prevent troubles and always perform the string feeding and tying operations smoothly and reliably, and also facilitates the work of exchanging the tying string and threading the string. .

To explain the structure of the present invention with reference to one embodiment shown in the drawings, Fig. 1 is an overall plan view of a knotter main body B attached to the rear part of a combine harvester A, and Fig. 2 is a side view thereof. The culm discharged from the culm discharge port of the outside threshing machine is conveyed to the rear of the machine by the straw removal chain 1, and is then successively raked onto the culm guide plate 3 by the raking wheel 2. It is now collected on four sides of the door, increasing the amount collected from the culm.
When the pressure on the door 4 reaches a predetermined pressure, a clutch (not shown) of the binding section is inserted to bind the culms, and the bundled culms are discharged by a sweeper S. The bundled culms that are intermittently released in this way are forcibly transferred diagonally backward to one side of the machine body by a transfer device 5 consisting of a chain, etc., and are released from the terminal end into the harvested field. It's summery.
A guide cover 6 for guiding the tip side of the bundled culm is installed in the planar triangular bundled culm transfer passage formed between the knotter main body B and the transfer device 5, and the bundled culm is It is adapted to be transported along the upper surface of the guide cover 6. 7 is a shaft pipe containing the drive shaft of the transfer device 5, 8 is a guide rail of the transfer device 5, 9 is a side cover of the transfer device 5, 10 is a stock guide rod, and 11 is a mounting frame of the knotter main body B. be.

In FIGS. 3 and 4, reference numeral 12 denotes a basket-shaped holder for holding a wound string (not shown), and this holder 12 includes a pair of disk-shaped side plates 12a and 12'a, and these side plates. 12a,1
A plurality of holding rods 12b, 12b connecting 2'a
..., and is located in the space below the guide cover 6 provided between the opposing body B of the knotter and the transfer device 5, and is disposed close to the lower surface of the guide cover 6, Its mounting structure is as follows.

That is, one end of a cover mounting shaft 15 is fixed to the shaft pipe 7 by a bracket 13 and a bolt 14, and the holder 12 is attached to one side plate 12a.
It is supported by a mounting shaft 15 via a bracket 16 fixed to the mounting shaft 15 so as to be vertically movable. Therefore, the cover mounting shaft 15 also serves as a pivot point for the holder 11. 16a is a split pin for preventing removal. An arm 17 is attached to the other side plate 12'a of the holder 12.
An upper stopper 18 and a lower stopper 19, each having an inclined guide surface 18a on one side thereof, are integrally provided with an appropriate distance therebetween. 20 is a plate fixed to the stay 5a of the transfer device 5, and the plate 20 has cutouts 2 at positions corresponding to the stoppers 18 and 19.
0a, and a protrusion 20b bent upward is integrally provided on one side of the notch 20a. Reference numeral 21 denotes a lever mounted horizontally rotatably on the plate 20 via a fulcrum shaft 21a, and this lever 21 is always urged in the direction of pressing against the protrusion 20b by a spring 22 (see Fig. 3). In this state, the lever 21 intervenes in the space a between the stoppers 18 and 19 on the holder 12 side, and the holder 12
is engaged and held in a substantially horizontal state. and,
When the lever 21 is rotated in the direction of arrow A in FIG.
Holder 1 is removed by lever 21 in order to remove it from the gap.
The holding action of stopper 2 is released and the stopper 1
8 and 19 can pass through the notch 20a of the plate 20, the holder 12 is designed to rotate in the direction of the arrow B around the holder mounting shaft 15 due to its own weight as shown by the phantom line in FIG. .

In the figure, reference numeral 23 denotes a side plate 12' located on the opposite side of the holder mounting shaft 15, which is the rotational fulcrum of the holder 12.
A string brake device 24 is disposed on the front side of the string insertion hole 23 in the string feeding direction in order to apply a moderate braking effect to the string during binding operation. .

In the configuration as described above, when loading a binding cord into the holder 12, it is sufficient to rotate the lever 21 in the direction of arrow A in FIG. In this state, the opening for inserting the binding cord in the holder 12 is exposed to the side, so loading the binding cord into the holder 12 is performed using the guide cover 6 or the side cover of the transfer device 5. It can be easily done with one touch without being disturbed by 9 etc. In addition, when loading the binding cord, it is necessary to perform a cord threading operation (cord setting operation) in which the unwinding end of the cord is passed through the cord brake device 24, a guide hole, a needle (not shown), etc. in sequence. This work is a tedious work that involves inserting your hand into a narrow space, but it can be done by creating a wide space below the guide cover 6 while the holder 12 is rotated downward, so this string set It also makes the work easier. On the other hand, in order to fix the holder 12 in the proper position after loading the binding cord, lift the holder 12 and press the lever 21.
By intervening in the gap a between the stoppers 18 and 19, the holder 12 can be reliably engaged and held in a substantially horizontal state with one touch. In this case, upper stopper 1
After the lever 21 is pushed back in the direction of retreating from the cutout 20a against the bullet 22 by the inclined guide surface 18a provided on one side of the Since the intervention returns automatically, there is no need to operate the lever 21 at all.

After setting the holder 12, the lever 21
is pressed against the protrusion 20b of the plate 20 by the bullet 22, and is held between the upper and lower sides of the lever 21 by the upper stopper 18 and the lower stopper 19, so that even if the aircraft body vibrates, the holder 12 will not move against the lever 21. There is no way to deviate from it. Further, since the guide cover 6 is located at a position close to the top of the holder 12, the string inside the holder 12 is prevented from accidentally flying out.

By the way, during field work, the guide cover 6 not only acts as a guide to the tip side of the bundled culm, but also acts as a guide for the holder 12.
In order to function as a dustproof cover for the knotter 12, dust such as straw does not fall and accumulate on the binding string loaded in the holder 12, and the binding string is arranged close to the knotter main body B. Therefore, the tension of the string can be controlled more reliably, and the feeding action of the string can always be carried out smoothly and reliably.

As described above, the present invention provides a combine tying machine in which a unit for transferring bundled culms is provided from the binding culm discharge side of the binding machine body toward the discharge direction to the field, in which the binding machine body and the transfer device are opposite to each other. A guide cover that guides the tip side of the bundled culm is provided between them, and the holder for the binding string is located in the space below the guide cover and is centered around a rotation fulcrum provided on the opposite side of the string insertion hole for feeding out the string. Since it is attached so that it can be moved vertically and fixedly, the space below the guide cover of the bundling culm can be effectively utilized, and the holder for the tie string can be placed as close to the bottom surface of the guide cover as possible. This allows the knotter body to be made even more compact, and the guide cover not only functions as a guide for the bundled culm and as a stopper to prevent the ties from coming out, but also as a dustproof cover for the holder and ties. Not only can this eliminate the inconvenience of dust such as straw falling and accumulating inside the holder, but also the starting end of the binding string can be placed close to the knotter body, thereby controlling the tension of the string. can be performed more accurately, and the action of letting out the tying string and tying the culm can always be carried out smoothly and reliably.In addition, by simply rotating the holder of the tying string downward, a fixed guide cover can be installed. Even if the cable is not in the way, the binding cord can be loaded into the holder with one touch without being obstructed by the guide cover, etc., making it extremely easy to replace and load the binding cord.
In addition, threading the string through the string brake device or the like can be done by creating a wide space below the guide cover while the holder is rotated downward, so there is an advantage that threading the string becomes easier.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Fig. 1 is an overall plan view of the knotter body equipped with the present invention, Fig. 2 is a side view of the same, Fig. 3 is a partially cutaway plan view showing the mounting state of the holder, Fig. 4 is a perspective view of the same, Fig. 5 The figure is a side view showing how the plate and lever are attached. In the figure, 5 is a transfer device for the bundled culm, 3 is a guide cover, 12 is a holder for the binding string, 15 is a rotation fulcrum of the holder (holder attachment shaft), 23 is a string insertion hole,
24 is the string brake device, A is the combine harvester, and B is the knotter body.

Claims (1)

[Scope of utility model registration request] In a combine tying machine in which a culm transfer device is provided from the culm discharge side of the tying machine body toward the discharge direction to the field, the tip side of the culm is placed between the tying machine body and the transfer device facing each other. A guide cover is provided for guiding the cable, and the holder for the binding string is located in the space below the guide cover so that it can be fixed to move up and down about a rotation fulcrum provided on the opposite side of the string insertion hole for feeding out the string. A binding device for a combine harvester, characterized in that it is installed.