JPS6216813Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a planting section stop device that senses the amount of seedlings in the main seedling tank of a rice transplanter and automatically stops the operation of planting seedlings.

Conventionally, the amount of seedlings in the main seedling tank was visually monitored and when there were no more seedlings left, the clutch of the planting device was manually disconnected to stop the seedling planting operation and prevent seedling shortages. Was.

This invention aims to sense the amount of seedlings in the main seedling tank and automatically stop the seedling planting operation, making the operation easier and improving work efficiency. Hereinafter, embodiments of this invention will be described in detail with reference to the drawings.

In the drawing, reference numeral 1 denotes a main seedling tank that is installed at the rear of the towing vehicle body 3 of the rice transplanter so as to be inclined downward from the rear. It is supported so that it can slide freely in the direction. . The main seedling tank 1 is equipped with seedling planting rods (not shown) of a seedling planting device 9 which is loaded with soiled pine seedlings, and which is installed in parallel at a predetermined interval in the left and right directions with respect to the traveling direction of the towing vehicle body 3. ), the seedlings 10 are supplied to the seedling planting rods while reciprocatingly moving laterally in the left and right directions. The seedling planting device 9 takes out the seedlings 10 supplied to the seedling planting rod and plants them into the soil. 11 is a support stand 1 provided for the towing vehicle body 3
This is an auxiliary seedling tank mounted on the top of the main seedling tank 1 so as not to move in the left-right direction, and has a seedling supply port facing the seedling supply port side of the main seedling tank 1. 15 is a float provided at the lower rear of the towing vehicle body 3, 17 is a front wheel, 19 is a rear wheel, 21 is a steering handle, and 23 is a driver's seat.

Generally shown, 25 is a clutch device that connects and disconnects the power that drives the seedling planting device 9, and is constructed as follows. That is, 27 is a power shaft that drives a drive device (not shown) that reciprocates the seedling planting device 9 and the main seedling tank 1 in the left and right directions;
A sprocket is rotatably supported on a power shaft 27, and is rotated via a chain 31 when driven by an engine (not shown). Reference numeral 33 denotes a clutch that rotates integrally with the power shaft 27 via a key 35 and is slidably provided in the axial direction, and has a pawl that engages and disengages a pawl 37 provided on the side of the sprocket 29 on the side surface. It is equipped with 39. 41 is a cam surface provided on the outer periphery of the clutch 33, and 42 is a bullet loaded between the locking ring 43 and the clutch 33, which urges the clutch 33 in the direction of the sprocket 29. .

Generally shown, 44 is a sensing device for sensing the weight of the seedlings 10 in the main seedling tank 1, and is configured as follows. That is, numeral 45 is a rocking plate which is installed in a hole 49 provided at an appropriate position in the bottom plate 47 of the main seedling tank 1 and is swingable in the vertical direction by a shaft 51, and 53 is fixed to the rocking plate 45. The arm 55 is a bullet that biases the swing plate 45 in the direction of protruding into the main seedling tank 1.

Generally shown, 57 is an actuating device which operates in conjunction with the sensing device 44 to disconnect the clutch device 25 of the seedling planting device 9, which includes the left and right movement of the main seedling tank 1, and is constructed as follows. That is, reference numeral 59 is a swinging rod that is pivotally connected to the support base 13 by a shaft 61 so as to be able to swing freely in the horizontal direction. Tank 11 and the same phase position in the left and right direction (Figs. 1 to 5)
In the figure), it engages with the locking part 62 at the end of the arm 53. 63 is an operating wire connected to the other end of the swinging rod 59, and the other end is connected to the shaft 67 in the clutch case 65.
It is connected to one end of a swinging rod 69 which is pivotally mounted to be able to swing freely. Reference numeral 71 denotes a clutch pin that is slidably provided through the clutch case 65. One end is fitted and locked into a long hole 75 provided at one end of the swinging rod 69 by a locking pin 73, and the other end is The clutch 33 contacts and separates from the cam surface 41. Reference numeral 77 denotes a bullet that urges the swinging rod 69 to rotate in the direction opposite to the direction of the arrow in FIG.

Then, when the actuating device 57 operates to disconnect the clutch device 25, the seedling supply port of the auxiliary seedling tank 11 and the seedling supply port of the main seedling tank 1 to be stopped match in the left-right direction. It is set.

In the above configuration, there are 10 seedlings in the main seedling tank 1.
3, the rocking plate 45 rotates in the direction opposite to arrow A in FIG. There is. In this state, the clutch pin 71 is
The elastic force of the bullet 77 pulls it up to the upper position and separates it from the cam surface 41, causing the clutch 33 to
moves to the right in FIG. 5 due to the pressing force of the bullet 42, the claws 39 and 37 engage, the clutch device 25 is connected, and the power is transmitted to the power shaft 27 to plant the seedlings. Device 9 is activated. At the same time, the main seedling tank 1 reciprocates horizontally in the left and right directions, but does not come into contact with the swinging rod 59 because the locking part 62 is in the upper position.

When the seedlings 10 in the main seedling tank 1 are completely planted, the swing plate 45 protrudes into the main seedling tank 1 due to the elastic force of the bullet 55, and the arm 53 swings in the direction of arrow A. 62 is lowered to the lower position (FIGS. 1 and 3). When the main seedling tank 1 reciprocates in the left-right and lateral directions and reaches the same phase position in the left-right direction as the auxiliary seedling tank 11 (FIGS. 2 and 3), the locking portion 62 comes into contact with the end of the swinging rod 59. 5, the swinging rod 59 is pressed and swung in the direction of arrow C in FIG. 71 is lowered and its lower end comes into contact with the cam surface 41. Power shaft 2
7, the clutch 33 is guided by the cam surface 41 and moves to the left in FIG.
This results in the horizontal movement of the seedlings and the suspension of the seedling planting device 9, etc. At this time, the seedling supply port of the main seedling tank 1 and the seedling supply port of the auxiliary seedling tank 11 match in the left-right direction. In this state, the main seedling tank 1 is supplied with seedlings 10 from the auxiliary seedling tank 11. Then, the rocking plate 45 is pushed and the locking part 62 is disengaged from the rocking rod 59, and due to the elastic force of the bullet 77, the rocking rod 59 rotates in the opposite direction to arrow B in FIG. 71 is detached from the cam surface 41 of the clutch 33 and pulled upward, the clutch 33 is pressed by the bullet 42, the pawls 37 and 39 engage, the clutch device 25 is connected, and power is transmitted to the power shaft 27. , the main seedling tank 1, the seedling planting device 9, etc. return to the operating state.

As described above, this invention is designed to reciprocate laterally in the left and right directions by attaching a large number of seedling planting rods to the towing vehicle body, which are installed in parallel at predetermined intervals in the left and right directions with respect to the direction of travel. A main seedling tank equipped with soiled pine seedlings that supplies seedlings to the seedling planting rod, and an auxiliary seedling tank that faces the main seedling tank and is set so as not to move laterally toward the towing vehicle body. A sensing device for detecting the amount of pine seedlings with soil is installed in the main seedling tank, and a clutch device of the seedling planting device including horizontal movement of the main seedling tank due to the operation of this sensing device is installed. An actuating device for cutting is configured, and the actuating device is set in a relationship such that when the actuating device operates to disconnect the clutch device, the auxiliary seedling tank and the main seedling tank to be stopped are in the same phase position in the left and right direction. Since this is a rice transplanter's planting section stop device, it senses the amount of seedlings in the main seedling tank and automatically stops the seedling planting operation, and when the seedling planting operation is stopped, Since the main seedling tank and the auxiliary seedling tank are in the same phase position in the left and right direction, it is very convenient to supply seedlings to the main seedling tank.

It is particularly effective when the clutch mechanism of this device is linked to the traveling device so that the traveling of the towing vehicle body is stopped when the main seedling tank runs out of seedlings.

[Brief explanation of the drawing]

FIG. 1 is an explanatory side view of a rice transplanter equipped with an embodiment of this invention, FIG. 2 is an explanatory plan view of the same, and FIG.
4 and 5 are enlarged cross-sectional views of the main parts.
Main seedling tank, 3...towing vehicle body, 11...auxiliary seedling tank, 25...clutch device, 44...sensing device, 57...actuating device.

Claims (1)

[Scope of utility model registration request] A large number of seedling planting rods are installed on the towing vehicle body at predetermined intervals in the left and right directions with respect to the traveling direction, and seedlings are placed on the seedling planting rods while moving back and forth in the left and right directions. A main seedling tank loaded with soiled pine seedlings to be supplied, and an auxiliary seedling tank that has a seedling supply port opposite to the seedling supply port side of the main seedling tank and is set so as not to move laterally toward the towing vehicle body. A clutch device of the seedling planting device is equipped with a sensing device for sensing the amount of pine seedlings with soil in the main seedling tank, and the clutch device of the seedling planting device includes horizontal movement of the main seedling tank due to the operation of the sensing device. an actuating device for disconnecting the clutch device, and the actuating device is set in a relationship such that when the actuating device operates to disconnect the clutch device, the auxiliary seedling tank and the main seedling tank to be stopped are in the same phase position in the left-right direction. A rice transplanter's planting section stop device.