JPH0142995Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an auxiliary device for releasing bundled grain culms in a binder.

In the binder, when the grain culms bound by the tying machine are discharged to the harvested field by the sweeper, the stock part is placed against the stock discharging rod installed at the bottom of the grain culm discharge passage, and the stock part is directed toward the machine body. It is customary to lie down on the field in an upright position.

However, since the conventional stock removal rod provides resistance to the stock part and forcibly corrects the direction of the released grain culm, it not only inevitably reduces the release distance of the grain culm, but also It is difficult to maintain the ejection position in an orderly and constant position. For this reason, there were disadvantages such as post-processing operations such as trampling the grain culms once released into the field with wheels and consolidating them, which became troublesome.

Therefore, in order to extend the distance for releasing grain culms, there are models that are equipped with a separate auxiliary conveyance device such as a belt on the body, but this not only makes the mechanism unnecessarily complicated and increases the cost, but also Since the belt does not have the function of holding the grain culm, there is a drawback that the intended purpose cannot be fully achieved.

Therefore, in the present invention, an auxiliary discharge arm having a rotational fulcrum on the outside of the bundled grain culm discharge path and rearward of the grain culm discharge path by the sweeper of the binding machine is arranged so as to be able to rotate outward at a predetermined angle. On the rotating tip side of the outer auxiliary discharge arm, there is integrated a receiving support for the discharged grain culm, which is made up of a stock holding part erected on the front and outer surfaces of a receiving plate that receives the discharged grain culm in an upright position. The auxiliary discharge arm is forcibly rotated by the inertial force applied to the discharged grain culm when the sweeper is operated, and the structure is simple and no special drive mechanism is required. Although it is a thing,
In addition to being able to extend the discharge distance of the bundled grain culm compared to conventional methods, the discharge posture is always maintained constant to reliably prevent the grain culm from being trampled by wheels, and post-processing such as convergence can be easily performed. It is an object of the present invention to provide an auxiliary device for releasing bound grain culms in a binder.

To explain the structure of the present invention with reference to an embodiment shown in the drawings, FIGS. 1 and 2 are an overall perspective view of a binder equipped with the invention and a schematic plan view showing the arrangement of each part, and wheels. A reaping section 2 is installed in front of the reaping section 2, and a binding machine 3 is disposed on one side of the reaping section 2, and the power of the engine 4 is transmitted to the wheels 1, 1, the reaping section 2, and the binding machine via a transmission mechanism. 3 to drive each of these parts. 3a is a sweeper which rotates intermittently in accordance with the operation of each part of the binding machine 3 at a predetermined timing, and has the effect of releasing the bound grain culm into the field by its pressing force.

Reference numeral 5 denotes an auxiliary discharge arm having a pivot point on the outside of the bundled grain culm discharge path a by the sweeper 3a of the binding machine 3 and behind the grain culm discharge path a, and this auxiliary discharge arm 5 is fixed to the machine body. An arm rod 5a is pivotably supported vertically and rotatably on a pivot shaft 7 erected on a bracket 6, and has a rotating tip facing the side of the bundled grain culm discharge path a by the sweeper 3a. It consists of a grain culm receiving support 5b fixed to the rotating tip side of the arm rod 5a. This receiving support 5b has plant head pressers B and C integrally erected on the front and outer surfaces of a receiving plate A that receives the released grain culm in an upright position, and has a stock plant presser on the front side. The height of the board is set lower than the stock holding board on the outer surface.

Reference numeral 8 denotes a planar arc-shaped cam body fixed to the bracket 6, and as shown in FIG. It has a cam surface 8c that slides and guides the rod 5a. And this cam surface 8
As shown in the figure, c is a mountain shape that gradually increases from the rotation start end P of the arm rod 5a to the top dead center P ₁ before the rotation intermediate portion, and then gradually decreases from the top dead center P ₁ to the rotation end P ₂ . , and the end of rotation P ₂
is set to be lower than the rotation start end P.

9 is a return spring. b in the figure is a bundled grain culm.

In the configuration as described above, when the bundled grain culm b is forcibly released by the sweeper 3a during the reaping and tying operation, the released bundled grain culm b follows its release path as shown in FIGS. 6 and 7. At the same time, the stock base is received and supported in an upright position by the receiving support 5b of the auxiliary ejection arm 5, which is waiting on the side of a, and the auxiliary ejection arm 5 is tied around the pivot shaft 7 by inertial force. Grain culm b
It rotates outward against the return spring 9 while supporting it. At this time, the auxiliary discharge arm 5 rotates from the rotation start end P to the rotation end _P2 while drawing a mountain-shaped discharge locus c due to the shape of the cam body 8, but in the middle of this rotation, the receiving support 5b Due to the action of centrifugal force, the bundled grain culm b supported above is moved gradually outward as shown in Fig. 7 until it reaches the end of rotation _P2 , and then turns the stock base toward the aircraft body. They are then released to the field in an orderly manner. By the way, the receiving support 5b fixed to the rotating tip side of the arm rod 5a of the auxiliary discharge arm 5 has stock holding plates B and H on the front and outer surfaces of the receiving plate A that receives the grain culm in an upright position. are integrally installed, so when the grain culm is received, the stock base of the released grain culm is moved between the front and outside sides by the stock base presser plate B on the front side and the stock base presser plate C on the outer side. Since it is supported by two sides in a stable upright position, the released grain culm will not fall over easily due to the impact when it is received. Therefore, the inertial force applied to the grain culm by the operation of the sweeper 3a can be used efficiently as it is as a rotational driving force for the auxiliary discharge arm 5, and the auxiliary discharge arm 5
Since the grain culm is rotated rearward in the direction of movement of the aircraft around a pivot shaft 7 provided at the rear outside of the culm, the release distance of the grain culm is further facilitated in conjunction with the acceleration accompanying the movement of the aircraft. In addition, as shown in FIG. 7, the stock head presser plate C on the outer side of the receiving support 5b faces in a direction perpendicular to the grain culm release direction at the beginning of receiving.
As the auxiliary release arm 5 rotates, it gradually changes its direction forward, so that the stock holding plate 3 acts as a guide when the grain culm falls down outward due to the action of centrifugal force. , the effect of aligning grain culms when falling in the field is further enhanced. Furthermore, when the grain culm falls onto the field, it will fall while falling in the direction of the stock holding plate RO, but the height of the stock holding plate RO is set lower than that of the stock holding plate C, which acts as a guide. There is no problem when the grain culms fall.

As described above, the discharge distance of the bundled grain culm b is extended by _l2 compared to the conventional method l1 using only the sweeper _3a , as shown in FIGS. 6 and 7. As a result, the bundled grain culm b The distance between the dropping point and the machine body can be increased by W, and therefore the inconvenience of the grain culms released into the field being stepped on by the following wheels 1 can be reliably eliminated. Also, when the auxiliary release arm 5 passes the top dead center _P1 of the cam body 8,
Since the bundled grain culm b is rotated while being lifted upward as shown in the figure, there is no risk that the bundled grain culm b will come into contact with the adjacent stump d and the discharging posture will be disturbed, and at the same time, the bundled grain culm b will not disturb the discharging posture. The bundled grain culm b is at the end of rotation P ₂
Since it floats upward, the separation during release is very good, so even if the stump d is high or the wheels 1 and 1 are sunk in a wet field, the release action of the bundled grain culm b is extremely effective. It is done smoothly.

As described above, the present invention allows the auxiliary discharge arm, which has a rotational fulcrum on the outside of the bundled grain culm discharge path and rearward of the grain culm discharge path by the sweeper of the binding machine, to be able to rotate outward at a predetermined angle. The outer auxiliary discharge arm is provided with a receiving plate that receives the discharged grain culm in an upright position on the rotating tip side, and a stock holding part is erected on the front and outer surfaces of the receiving plate to receive and support the discharged grain culm. The body is integrated, and the auxiliary discharge arm is forcibly rotated by the inertia force applied to the discharged grain culm when the sweeper is operated, thereby increasing the throwing distance of the discharged grain culm. When releasing bundled grain culms, the inertial force applied to the grain culms by the sweeper can be effectively used as a driving force, and the distance between the dropping point of the released grain culms and the machine body can be further reduced than with conventional methods. This can reliably prevent the released grain culm from being trampled by the wheels, and when the grain culm is received, the stock base presser plate on the front side and the stock base presser plate on the outer side side Since the base of the grain culm is supported in a stable upright position on two sides, the front and outer surfaces, the inertial force applied to the grain culm by the operation of the sweeper is efficiently used as rotational driving force for the auxiliary discharge arm. In addition to being usable, the auxiliary release arm is structured to rotate rearward in the direction of movement of the machine around a pivot shaft installed at the rear outside of the grain culm release path, so due to its structure, the auxiliary release arm cannot be rotated toward the field side. The radius can be set relatively large, and this, combined with the relationship with the acceleration accompanying the progress of the aircraft, further facilitates the release distance of the grain culms. In addition, the stock head press plate on the outer side of the receiving support serves as a guide when the grain culm falls outward, which further enhances the effect of aligning the orientation of the grain culm when it falls in the field. As a result, grain culms can always be released into the field in an orderly manner, post-processing operations such as focusing can be easily performed, and the structure is simple and does not increase costs.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of a binder equipped with the present invention, Fig. 2 is a plan view schematically showing the arrangement of each part, Fig. 3 is a perspective view of the main parts, Fig. 4 is a plan view of the main parts, FIG. 5 is a side view of the main part, and FIGS. 6 and 7 are a front view and a plan view showing the function of the main part. In the figure, 3 is a binding machine, 3a is a sweeper, 5 is an auxiliary discharge arm, a is a bundled grain culm discharge path, and b is a bundled grain culm.

Claims (1)

[Scope of utility model registration request] An auxiliary discharge arm having a rotational fulcrum on the outside of the bundled grain culm discharge path and rearward of the grain culm discharge path by the sweeper of the binding machine is disposed so as to be freely rotatable at a predetermined angle outward. A receiving support for the discharged grain culm is integrally provided on the rotating tip side of the sweeper, which is made up of a stock holding part erected on the front and outer surfaces of a receiving plate that receives the discharged grain culm in an upright position. A device for promoting the release of bundled grain culms, characterized in that the auxiliary release arm is forcibly rotated by the inertia force applied to the ejected grain culms when activated, thereby promoting the throwing distance of the ejected grain culms.