JPH0353620Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention consists of a seedling stand attached to the machine body so as to be slidable laterally, and a planting claw that moves back and forth in the lateral direction of the machine in conjunction with the seedling planting movement. The seedling tray lateral feed shaft attached to the machine body is interlocked with a pair of interlocking rods arranged at the left and right ends of the seedling tray lateral feed shaft, and the seedling tray lateral feed shaft is connected to The present invention relates to a structure of a seedling supply section in a rice transplanter in which a speed change control mechanism for a gear transmission is provided in the machine body.

[Conventional technology]

In the rice transplanter mentioned above, conventionally, by providing a special reinforcing member that connects a pair of left and right connecting rods that connect the horizontal feed shaft of the seedling tray and the seedling tray so that they move together, the resistance to the horizontal feeding of the seedling tray can be reduced. Regardless of the situation, measures should be taken to prevent distortion from occurring in the connection between the transverse feed shaft of the seedling tray, the seedling tray, and the interlocking rod, and a special operating tool for the release operation member of the speed change check mechanism should be installed on the seedling tray. By making it movable as a whole,
Only when the seedling stand is located at the transversal feed position set for speed change, the operating tool comes into contact with the release operation member and the speed change check mechanism is operated to the check release state, as follows. I was at a disadvantage.

[Problem that the invention attempts to solve]

A reinforcing connecting member and an operating tool for releasing the shift check are required separately, which increases the number of parts required.
Not only did the structure become more complex, but the time and effort required to assemble the device also increased.

The purpose of the present invention is to strengthen the transverse feed structure of the seedling tray and to enable the variable speed check mechanism to be operated as desired while reducing the number of required parts.

[Means for Solving the Problems] The characteristic configuration of the present invention is that, in the structure of the seedling supply section in the rice transplanter described above, the operating tool for the check release operation member of the speed change check mechanism is formed into a rod shape, and the The operation part is connected to the pair of interlocking rods in such a state that the operation part is arranged so as to come into contact with the restraint release operation member only when the seedling stand is at the set horizontal feed position for the purpose. , its functions and effects are as follows.

[Effect]

The operating tool is a member that connects the pair of interlocking rods, and is also connected to the seedling stand by the interlocking rod and moves together with the seedling stand, and when the seedling stand is in the transversal position for speed change. When the control unit is operated to operate the restraint release operation member and the seedling stand is removed from the shift position, the operation of the restraint release operation member is released.

[Effect of idea]

By connecting the pair of interlocking rods, it becomes possible to reinforce the interlocking structure between the lateral feed shaft of the seedling pedestal and the seedling pedestal so that distortion caused by the lateral movement resistance of the seedling pedestal is less likely to occur. The seedling tray is fed with good accuracy and the amount of seedlings supplied is uniform, and the seedling tray is fed with high precision.The control release operation member is operated as described above, so that the seedling tray is set to the variable speed setting. The speed change check mechanism is now operated to release the check only when the seedlings are in the cross-feeding position, making it possible to change the amount of seedlings supplied without causing supply troubles after the change. Ta.

Moreover, by combining the reinforcing members with the members for operating the speed change check mechanism, it is possible to reduce the number of required parts, simplifying both the structure and the time required to assemble the parts. It has become possible to reduce costs.

〔Example〕

As shown in FIG. 7, a seedling planting device 3 is connected to the rear of the wheeled traveling body so as to be raised and lowered via a link mechanism 2 that is operated to swing up and down by a hydraulic cylinder 1, and A riding-type rice transplanter is configured such that power is transmitted from the machine body to the seedling planting device 3 via the rotating shaft 4.

The seedling planting device 3 includes a planting arm 7 which is attached to the rear of a transmission case 5 as a body of the planting device so as to be driven to swing up and down via a link mechanism 6.
A seedling feeding unit is attached to the transmission case 5, and the seedling feeding unit is installed so as to feed the seedlings to the planting arm 7 while reciprocating the seedling tray 8 in the width direction in conjunction with the seedling planting movement of the planting claw 9. A grounding float 10 is attached to the lower part of the transmission case 5 on the front end side.

In order to enable the reciprocating transportation of the seedling stand 8, it is constructed as follows.

That is, as shown in FIG.
A rail member 1 that forms a seedling supply port 11 and receives and supports the lower end side of the seedlings placed on the seedling stand 8.
2 and is attached to the transmission case 5 via a support 13 so as to be able to slide laterally. Figures 1 and 2
As shown in the figure, a pair of interlocking rods 15 are arranged to distribute the horizontal feed shaft 14 of the seedling tray at the left and right ends of the shaft.
a, 15b, and a cylindrical shaft 17 that is rotatable relative to the seedling rest lateral feed shaft 14 while connected to the seedling rest 8 so as to move integrally through a rod 16 connecting these interlocking rods 15a, 15b; And, it is slidably attached to the transmission case 5 via a bearing 18, and the feeder 1 of the transverse feed shaft 14 of the seedling stand
9 is rotatably attached to the cylindrical shaft 17 in such a manner that the protrusion 19a enters the spiral groove 14a of the transverse feed shaft 14 of the seedling stand. A large-diameter gear 20 and a small-diameter gear 21 are attached to the cylindrical shaft 17 so as to be integrally rotatable, and a shift gear member 22 that can engage with both the gears 20 and 21 is gear-interlocked with the input shaft 23 of the transmission case 5. It is integrally rotatably and slidably attached to the planting arm transmission shaft 24, and constitutes a two-speed gear transmission 25 for transversely feeding the seedling stand.

Specifically, the rotational force of the transmission shaft 24 is transmitted to the cylindrical shaft 17 by the gear transmission 25, and the feeder 19 is rotationally driven, so that the seedling tray lateral feed shaft 14 moves the planting claws 9 to plant the seedlings. The seedling stand 8 is moved back and forth in conjunction with the movement. By changing the speed of the gear transmission 25, the moving speed of the seedling tray lateral feed shaft 14 is changed, and the seedling tray 8 is transferred so that the amount of supplied seedlings in the width direction of the seedling tray is changed. The speed is made to change.

As shown in FIGS. 2 and 3, a releasable stopper 27 for the speed change operating shaft 26 of the gear transmission 25;
The stopper 2 acts on the operating arm 27a of the
A rotary cam 29 is integrally rotatably attached to the cylindrical shaft 17 so that the rotary cam 7 can be swung around the axis of the stopper rotation shaft 28, and a stopper operation arm 30 is integrally and rotatably extended from the rotary support shaft 28. A releasable catch 31 for, this catch 31
an operating rod 32 which is attached to the transmission case 5 and serves as a restraining release member that switches between an operating position and an action releasing position; a spring 33 that swings and biases the stopper 27 and the stopper operating arm 30;
Each of the springs 34 biasing the operating rod 32 to the restraining position ON constitutes a speed change restraining mechanism 35 which can freely release the gear transmission 25 and is biased to the operating state. That is, when the operating rod 32 is in the restraining position ON, as shown in FIG. The stopper operating arm 30 supports the stopper 27.
in an operating state in which the free end side has entered the movement path of the plate 36 attached to the speed change operation shaft 26, and
The stopper 27 is operated so that it is not operated by the rotary cam 29 and the shift operation shaft 26 cannot be slid from the high speed position or the low speed position.
acts on the plate 36. Then, when the operating rod 32 is slid to the check release position OFF ₁ or OFF ₂ , the catch 31 comes off from the stopper operating arm 30, as shown in FIGS. 4 and 5.
The stopper operation arm 30 is operated by the spring 33 to the side approaching the cylinder shaft 17, and the rotating cam 2
9 can now operate the stopper 27, and the feed tool 19 can be moved to a rotational position other than the set rotational position for gear shifting.
4, the operating arm 27a rides on the circumference of the rotating cam 29, and the stopper 27 is in an operating state with its free end entering the movement path of the plate 36. Shift operation shaft 2
However, only when the feeder 19 is operated to the set rotational position for speed change, the free end side of the operating arm portion 27a moves into the recess 29a of the rotary cam 29, as shown in FIG. Get into it and stopper 2
7 is out of the movement path of the plate body 36 and is in a deactivated state, allowing the speed change operating shaft 26 to slide.

As shown in FIG. 1, a rod-shaped operating tool 37 for the operating rod 32 is connected to
It is constructed and connected to the pair of interlocking rods 15a and 15b so that it becomes a part that connects the rods 15a and 15b and moves together with the seedling stand 8. The operating tool 37 has a pair of operating parts 37a and 37b for the operating rod 32, and only when the seedling stand 8 is at the left side traverse stroke end, one of the operating parts 37a is connected to the right side. The other operating section 37 only when it is at the end of the traversal stroke.
b are respectively placed in the check release position of the operating rod 32.
It is arranged so as to be in contact with OFF ₁ or OFF ₂ when pressed, and the seedling tray 8 is positioned at the left or right side traversal stroke end, which is the set lateral feed position for speed change, and the feed Ingredients 1
The gear transmission 25 can be operated to change the speed only when the gear transmission 9 is at the set rotational position for speed change.

[Another example]

Although the above-mentioned speed change check mechanism 35 is designed to specify the rotational position of the feeder 19 when making a speed change operation possible, the present invention can also be applied to a speed change check configuration that does not provide this specifying measure. is applicable.

[Brief explanation of the drawing]

The drawings show an example of the structure of the seedling supply section in the rice transplanter according to the present invention, FIG. 5 through 5 are partially cutaway side views of the speed change check mechanism, FIG. 6 is a partially cutaway side view of the seedling supply section, and FIG. 7 is a side view of the entire riding-type rice transplanter. 5... Aircraft, 8... Seedling stand, 9... Planting claw,
14... Seedling stand horizontal feed shaft, 15a, 15b...
Interlocking rod, 32... Check release operation member, 35... Speed change check mechanism, 37... Operation tool, 37a, 37b...
...Operation section.

Claims (1)

[Scope of utility model registration request] A seedling stand 8 attached to the fuselage 5 so as to be slidable laterally;
The seedling tray lateral feed shaft 14 is attached to the seedling tray lateral feed shaft 14 attached to the machine body 5 in a state in which it is reciprocated in the lateral direction of the body in conjunction with the seedling planting movement of the planting claw 9.
A pair of interlocking rods 15 arranged separately on the left and right ends of the
This is a structure of a seedling supply section in a rice transplanter in which a gear transmission 25 for transversely feeding a seedling tray is provided with a speed change check mechanism 35 in the machine body 5, the speed change check mechanism 3
The operating tool 37 for the check release operation member 32 of No. 5 is formed into a rod shape, and the control release operation member 32 is provided with an operating portion 37a or 37b only when the seedling stand 8 is at the set lateral feed position for speed change. The structure of a seedling supply section in a rice transplanter is constructed and connected to the pair of interlocking rods 15a and 15b in a state where they are arranged so as to make contact with each other.