JPH0735531Y2 - Marker storage device for riding type paddy work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a marker storage device for a riding type paddy working machine such as a rice transplanter, a fertilizer applicator, and a seeder.

[Problems to be Solved by Prior Art and Invention] Generally, in this type of riding type paddy working machine, when a field work is performed, a marker for marking a next work stroke is selectively selected by switching a marker operation tool. It is provided on the left and right so that it can be transformed into a fall-up posture. This marker needs to be stored by standing up from a fallen posture when the machine turns, but it is possible to automatically perform this standing up and storing operation in conjunction with the rise of the working unit. Being tried. However, in the conventional automatic standing storage system, for example, a lift arm is provided with an operating pin that is interlockingly connected to the marker so as to face it, and when the lift arm is moved upward, the operating pin is forcibly oscillated to store the marker upright. However, since the operating pin is cantilevered in this structure, it is not allowed to have a structure in which the operating pin is strongly reinforced. Since the load resisting the biasing force for exerting the force acts in a concentrated manner, there is a problem that the lift arm is not smoothly moved upward.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was devised with the object of providing a marker storage device for a riding-type paddy working machine that can eliminate these drawbacks. , A paddy working unit that is configured so that markers that are constantly urged to the lying position for marking operation are arranged on the left and right sides, and these can be selectively transformed to the lying-standing position by operating the marker operating tool. In a riding-type paddy field working machine that is attached to a traveling machine body via an elevating link mechanism, one of a lower link that constitutes the elevating link mechanism and a lift rod that is connected to the lower link is interlockingly connected to a marker side. The oscillating body is rotatably supported, and the other is provided with a rotatably supported support portion and an operating rod movably supported by the supporting portion, and one end portion of the operating rod is attached to the oscillating body. Linking Then, the operating rod is configured to move following the swing of the rocking body caused by the fall operation of the marker, and the working rod further includes the rocking body and the supporting portion as the working section rises beyond the work area. The stopper is provided by abutting the support portion by expanding the distance between the stopper and the stopper for restricting the rod movement in the direction following the swing body, and the movement-controlled rod forcibly swings the swing body toward the marker standing side. It is characterized in that the marker is automatically transformed into a standing storage posture.

Further, the present invention is configured such that the upright storage mechanism for the marker can be received as a compact and the load at the time of inversion can be dispersed and received.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a traveling machine body of a riding type paddy work machine, the traveling machine body 1 is an agricultural tractor with wheels for traveling in a paddy field exchanged and attached, and a three-point link mechanism 2 is provided at a rear portion of the machine body. The seedling planting work section 3 is provided so as to be vertically movable. Although the working unit 3 is constituted by member devices such as the center float 4, the planting claw 5, the seedling mounting table 6, and the side float 7, it is the same as the conventional one.
The top link 2a of the three-point link mechanism 2 is detachably pivoted by a retaining pin 1b to a top link bracket 1a provided on the traveling body 1 with a horizontal shaft 2b provided at its front end portion. The link boss 8 is rotatably supported on the horizontal shaft 2b. The links 9 and 10 are connected to the arms 8a and 8b protruding from the link boss portion 8, respectively. The link 9 connected to the rear is in a state in which an appropriate connecting means such as a link mechanism is further interposed. Is linked to a sub valve 11 provided on the working section 3 side. On the other hand, the link 10 connected to the front is interlockingly connected to a second operation lever 12 described later. This sub valve 11
Is further linked to the center front 4 side, and when the second operating lever 12 is set to the automatic lowering position, the sub-valve 11 is switched based on the detected swing of the center float 4 so that the working unit 3 operates. It is configured to automatically control so as to have a predetermined work posture.

Reference numeral 13 is a first operation lever for controlling the switching of the main valve 36 when the tractor work is performed.
No. 13 was installed in the vehicle from the beginning. on the other hand,
The second operation lever 12 is separately required when the seedling planting work section 3 is attached. The second operation lever 12 swings in the front-back direction on the attachment case 14 via the support shaft 12a. It is freely mounted and is swingable in the left-right direction via a support shaft 12b. Then, the sub-valve 11 is switched by swinging operation in the front-rear direction along with the lever guide 14a of the second operation lever 12. The second operating lever 12
Is always urged toward the stopper 14b side of the lever guide 14a by a bullet 12c. Further, 37 is a hydraulic pump, 38 is a lift arm cylinder, and 39 is an oil tank.

Further, the second operating lever 12 is integrally provided with a cam plate 15 and a swing arm 16, and swings following the forward and backward operations. Ten
The front end of the sub-valve 11 is pivotally supported, and when the second operating lever 12 is set to the corresponding guide position, the sub-valve 11
Can be switched. On the other hand, a cam roller 16a provided on a cam arm 16 interferes with the cam plate 15, but the inner wire 17
Are connected at one end. By the way, in this one,
The connecting structure of the inner wire 17 to the cam arm 16 is as follows. That is, the wire holder 17a fixed to the front end of the inner wire 17 is provided with a through hole 17b, which is penetrated and locked by the pin 16b provided on the cam arm 16 side, and the tip of the retaining bullet 16d is pinned. The wire holder 1 is elastically fitted and locked in a locking groove 16c provided on the penetrating side of 16b.
The 7a is prevented from coming off from the pin 16b, so that the inner wire 17 can be connected in a one-touch manner. The inner wire 17 is drawn into a clutch case 20 with a speed reducer provided in the middle of a transmission shaft 19 that connects the power take-off shaft 18 on the traveling machine body 1 side and the input shaft 3a on the working unit 3 side, When the second operation lever 12 is set to the automatic lowering position, the clutch is linked with the second operating lever 12 to enter the state and the power is transmitted to the working unit 3 side.

On the other hand, the mounting case 14 has a base end portion of a marker operating lever 22 for raising and lowering the markers 21 provided on both left and right sides of the working portion 3 and pivotally supported in a lateral direction via a support shaft 22a. Has been done. A central portion of the actuating plate 23 is integrally pivotally connected to the lever base end portion via a link shaft 23a via a link 22b. The rear ends of the left and right end portions of the actuating plate 23 will be described later. As described above, the front end portions of the inner wires 24 interlockingly connected to the marker 21 side are connected to each other. That is, the front end of the inner wire 24 is connected to a wire holder 24b having a long hole 24a formed therein, and this long hole 24a is penetrated and locked to pins 23b projecting from the left and right ends of the operating plate 23, and The wire holder 24b is prevented from being pulled out by elastically fitting and locking the tip portion of the retaining bullet 23d in the retaining groove 23c formed on the penetrating side of the penetrating pin. twenty four
It has a structure that can be connected like a one-touch.

On the other hand, these inner wires 24, and further the inner wires
The 17 outer holders 26a and 26b are as follows. That is, the support plate 26 is detachably attached to the frame 25 provided at the rear of the mounting case 14 via the butterfly bolt 25a.
The support plate 26 is attached to the outer wires of the inner wires 17 and 24.
26a and 26 are provided.

Further, the mounting case 14 is integrally mounted on the driver seat 28 of the machine body 1 on the upper side of the fander 29 provided with the first operation lever 13 by using the frame 27 projecting toward the inside of the machine body. In this case, the mounting case 14 is provided with a notch portion 14c so that the operation of the first operation lever 13 is allowed, whereby the first operation lever 13 is provided in the vicinity of its side without being covered. It is configured to be assembled. Reference numeral 30 denotes a lever stopper, which is attached to the outer surface of the cutout portion 14c of the mounting case 14 toward the first operating lever 13 side.
By the attachment / detachment of the mounting bolt 30a, the first operation lever 13 is set in the raised position, that is, the position where the main valve is set to the hydraulic pressure supply state, but the lever operation is restricted and the first operation lever is held in that position. It is designed so that it can be transformed and fixed to an irregular posture that allows the lever 13 to be freely operated.

Further, the marker 21 is pivotally supported so as to be able to move up and down around a support shaft 21a as a fulcrum, and is always urged toward the laid side by a bullet 21b. On the other hand, one end of the inner wire 31 is connected to the marker 21, but the other end of the wire 31 is connected to the lift arm.
A spindle 32 is attached to the lift rod 2d that connects the 1c and the lower link 2c.
It is connected to an oscillating plate 32 which is pivotally supported via a. The outer receiver 31a of the inner wire 31 is provided at the lower end of the lift rod 2d.

A long hole 32b and a lock pin 32c are formed in the rocking plate 32, and the long hole 32b moves up and down and rocks back and forth via a boss (corresponding to the supporting portion of the present invention) 33c on the lower link 2c. A pin 33a projecting from the upper end of a movable rod 33 is movably fitted in the movable rod 33, and a stopper 33b is formed at the lower end of the movable rod 33. Further, a cam plate 34 is swingably supported by a bracket 32b provided on the support shaft 32a via a support shaft 34a. The cam plate 34 is connected to the other end of the inner wire 24 that is interlockingly connected to the marker operating lever 22 side, and is also formed with a locking portion 34b for locking the lock pin 32c. And marker 21
Is set to maintain an upright posture against the ammunition when the lock pin 32c is locked to the locking portion 34b. When the working unit 3 is lowered to the working area in this state, if the marker operating lever 22 is selectively set to the corresponding side to lie down on either the left or right marker 21, the corresponding inner wire 24 is pulled. As a result, the cam plate 34 swings against the ammunition 34c, the locking of the locking portion 34b with the lock pin 32c is released, and the marker 21 is moved by the urging force of the ammunition 21b. The oscillating plate 32 also oscillates and the stopper 33b moves closer to the boss 33c.
33 is lifted, and planting work will be performed in this state. Then, when the aircraft reaches a ridge or the like and the second operating lever 12 is moved to the raised position to lift the working part 3 in order to interrupt the work, the correlation between the lower link 2c and the lift rod 2d changes, and the boss 33c. The distance between the support shaft 32a and the support shaft 32a becomes longer, and as a result, the operating rod 33 in the state where the stopper 33b is close to the boss 33c comes into contact with the boss 33c, and the rocking plate 32 resists the bullet 21b. Then, the marker 21 is automatically raised to the standing storage position by pulling it so as to swing to the marker upright side, and when the marker operating lever 22 is operated to the neutral position or the opposite side. Lock pin 32c is the locking part 3
The marker 21 is locked by the lock 4b, and in this manner, the marker 21 can be automatically stored upright in association with raising the working portion 3 beyond the working area.

Further, one piece of the top link bracket 1a with which the front end horizontal shaft 2b of the top link 2a is fitted is provided so as to project higher than that of the other side, and the actuating arm 35 is provided here via the support shaft 35a.
Is swingably supported. A roller 35c provided at the tip of one arm 35b of the operating arm 35 faces the upper surface of the trap link 2a, and at the tip of the other arm 35e, the tip extends forward from the link boss 8. An operating pin 35d facing the 8b is provided so that its position can be adjusted. Further, an ammunition 35f is interposed between the arm 35e and the top link bracket 1a, and the actuating arm 35 is moved in the direction in which the roller 35c approaches the top link 2a and the actuating pin 35d is moved from the arm 8b. It is urged in the direction of separation. Incidentally, 35g is a stopper for restricting the operation arm 35 from rotating more than necessary by the urging force of the ammunition 35f. When the working unit 3 is lowered to the working posture, the operating arm 35 is located at the non-acting position where the stopper 35g regulates the linking boss portion in response to the lever operation of the second operating lever 12. Although the link operation of 8 is freely performed, when the second operating lever 12 is set to the raised position and the working unit 3 is raised, the top link 2a moves upward with the horizontal axis 2b as a fulcrum. Will swing to. Then, the top link 2a comes into contact with the roller 35c from the lower side to forcibly swing the operating arm 35 against the ammunition 35f, whereby the operating pin 35d is moved to the arm 8b.
While pushing the arm 8b toward the lower side, the second operating lever 12 which has been set to the raised position is forcibly moved to the neutral position and set there, while the sub valve 11
Is switched to a neutral state (valve OFF state).

In the embodiment of the present invention configured as described above, in the state where the working unit 3 is lowered to the working posture, the marker operating lever is
When 22 is operated to the unimplanted side, the wire on the operated side
24 is pulled, whereby lock pin 32c of locking portion 34b is pulled.
As described above, the marker 21 is released from the ammo 21
Due to the urging force of b, he will fall to the marking position and mark for the next work process. During this fall process, the operating rod 33 is pulled by the rocking plate 32,
33b is moving upward so as to contact the boss 33c.

When the working unit 3 is raised, such as when the vehicle is turning, the relative angle between the lower link 2c and the lift rod 2d changes, and the space between the swing plate 32 and the outside of the boss 33 expands and becomes longer. As a result, the stopper 33b comes into contact with the boss 33c, and the operation rod 33, which is restricted from moving further upward, is now the swing plate.
The inner wire 31 is pulled by forcibly swinging 32, whereby the marker 21 automatically transforms into the standing storage posture against the ammunition 21c, and the lock pin 32c is loosely fitted into the locking portion 34b. Engagement is made (Note that if the working unit 3 is lowered again with the marker operating lever 22 lying down, the lying marker 21 will fall as it is following the lowering of the working unit 3. become). After turning, the marker operating lever 22 may be operated to the opposite side.

As described above, in the present invention, the upright storage of the marker 21 can be automatically performed following the rise of the working unit 3.
When the lift arm 1c is moved upward to raise the working unit 3, the angle between the lift rod 2d and the lower link 2c is changed, and the space between the swing plate 32 and the boss 33c is expanded. The rod 33 forcibly rocks the rocking plate 32 to transform the marker 21 into the upright storage posture. Therefore, as in the prior art, the swing arm is applied to a swing member such as a lift arm, and the swing arm is swung following the upward movement of the lift arm to raise the marker.
An operating rod that is interposed between the lift rod 2d and the lower link 2c without the need for a cantilevered swing arm.
Since it is a structure that is automatically stored by the action of 32,
There is no need for reinforcement as in the case of supporting a cantilevered member, and the load that resists the ammunition 21c acts in a distributed manner between the lift rod 2d and the lower link 2c, and hence the working unit. There is no fear that the smooth ascending operation of 3 will be hindered.

Needless to say, the present invention is not limited to the above-mentioned embodiment. For example, as shown in FIG. 15 in the second embodiment, the operating rod and the oscillating plate are reverse to those in the first embodiment. It is possible to use the one that is attached because of the relation.

[Effects and Effects] In short, since the present invention is configured as described above, the marker in the marking posture is automatically transformed into the standing storage posture following the raising of the working unit. , In this case, the operating rod forcibly swings the swing plate to expand the distance between the support portion and the swing plate based on the change in the relative angle between the lower link and the lift arm, and thereby the marker lying down is detected. It will be transformed into a standing storage posture.
Therefore, a cantilevered member that is strongly reinforced, such as a cantilevered actuating arm that is applied to the lift arm that moves upward when raising the working part to perform the standing operation of the marker, is required. The load during stand-up operation is distributed to the lift rod and the lower link to work, and has little influence on the smooth rising operation of the working unit.

[Brief description of drawings]

FIG. 1 shows an embodiment of a marker storage device for a riding type paddy working machine according to the present invention. FIG. 1 is a side view of a riding type rice transplanter with a part cut away, and FIG. FIG. 3 is a plan view of a main part of the link mechanism, FIG. 3 is a plan view of a main part of the same as above, and FIG.
FIG. 6 is a side view of an essential part of the marker actuating mechanism, FIG. 6 is a side view of an essential part of the second operation lever part, FIG. 7 is a plan view of an essential part with a part of the mounting case part cut away, and FIG. 9 is a front view of the operation of the second operating lever, FIG. 10 is a front view of the essential part of the same as above, FIG. 11 is a side view of the essential part of the operation of the lever return mechanism, and FIG. Part plan view, Fig. 13 is hydraulic circuit diagram,
FIG. 14 is an exploded perspective view of the top link connecting portion, and FIG. 15 is a side view of a marker storage device showing another example. In the figure, 1 is a traveling machine body, 3 is a working unit, 11 is a sub valve, 12
Is a second operation lever, 13 is a first operation lever, 14 is a mounting case, 30 is a lever stopper, and 36 is a main valve.

Claims (1)

[Scope of utility model registration request] 1. A marker which is always urged to the laid-down posture side for marking operation is arranged on the left and right sides, and these can be selectively transformed into a laid-up-standing posture by operating a marker operating tool. In a riding-type paddy field working machine in which a paddy field working unit is attached to a traveling machine body through a lifting link mechanism, a marker is provided on either one of a lower link forming the lifting link mechanism and a lift rod connected to the lower link. On one side is pivotally supported by an oscillating body, and the other is provided with a rotatably supported support part and an operating rod movably supported by the supporting part, and one end of the operating rod is provided. The rocking body is connected to the rocking body so as to move following the rocking motion of the rocking body due to the fall operation of the working rod marker. And with the support A stopper is provided by abutting the support portion by expanding the distance to regulate the rod movement in the direction following the oscillator, and the movement-regulated operation rod forcibly swings the oscillator to the marker standing side, A marker storage device for a riding-type paddy work machine, which is configured to automatically transform into a standing storage posture.