JPS6237923B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a center marker locking device for a rice transplanter, and more particularly, when a ridge clutch is activated,
Alternatively, it relates to a mechanism that, when the seedling stopper is turned to the use position, rotates the marker in the operating position to the storage position in conjunction with these movements, and locks it at the same position.

[Prior Art] Conventionally, a center marker that marks the direction of movement of a rice transplanter has been inconvenient when moving because its operating state has been changed by operating the center marker.

[Problem to be solved by the invention] In order to eliminate this drawback, when the piston of the hydraulic cylinder that raises the planting part extends from the cylinder, the center marker in the operating position is retracted in conjunction with this. There are ways to do this. On the other hand, when changing the number of rows in which seedlings are planted using a ridge crutch, the center marker cannot be used and must be stored.
Also, when you defeat the Seedling Stopper and use it, the center marker cannot be used in the same way, so you need to store the center marker.
That is, it may be necessary to store both the left and right center markers.

[Means for Solving the Problems] It is an object of the present invention, when using a ridge clutch or a seedling stopper, to rotate the ridge clutch lever or seedling stopper to the use position by It is an object of the present invention to provide a center marker locking device capable of forcibly storing a marker regardless of the movement of the piston.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

Fig. 1 shows an example of a riding rice transplanter, in which reference numeral 1 indicates a running vehicle, 2 indicates the entire rice transplanting machine, and a link mechanism 3 that connects these.
is rotated by the action of the hydraulic cylinder 4 and piston 5 to move the planting machine 2 up and down. Center markers 6 are rotatably provided on both sides of the planting work machine 2, and when the rice transplanter advances, the required markers fall to the operating position and mark marks for guiding the rice transplanter on the field. When the rice transplanter rotates, the planting machine 2 is raised and the center marker in use is stored in a non-operating position, the operation of which will be described later.

FIG. 2 shows details of the hydraulic cylinder 4 and piston 5, and a holding part 7a formed on the lid 7 of the hydraulic cylinder 4 has a pair of actuating members 8.
(the other is not shown) is slidably mounted, and one end of the wire 11 held by the holding member 9 is connected to one end of the wire.
The other end of the wire 11 is connected to the base of the center marker 6, and the center marker 6 is given the tendency to rotate in the direction opposite to the arrow 13 around the axis 12 by the elasticity of a spring (not shown). There is. That is, when the wire 11 is loose, the center marker 6 is rotated to the illustrated use position by the elasticity of the spring, and the other center marker (not illustrated) is configured in the same manner. The free end of the piston 5 is connected to the link mechanism 3 by a connecting mechanism (not shown), and when the piston 5 extends from the cylinder 4 and moves in the direction of arrow 14, the planting operation is performed by the action of the link mechanism 3. Aircraft 2 is now being lifted. A dowel pin 15 is connected to an elastic spring 16 on the side of the actuating member 8.
The dowel pin 15 is connected by a wire 17 to a center marker lever (not shown).

A stopper 18 fixed to the actuating member 8 is pressed against the holding portion 7a by the spring of the center marker 6, and the small diameter portion 8a of the actuating member 8 is connected to the arm member 19 whose base is fixed to the piston 5. It loosely passes through the free end, and the base of another arm member 21 is further fixed to the free end. Arm member 21
A driving member 23 having a head 23a is slidably attached to the free end and the stationary member 22, and a return member 23 is provided between the collar 24 fixed to the driving member 23 and the stationary member 22. Due to the elasticity of the spring 25, the drive member 23 is normally in the position shown. One end of a wire 26 is connected to one end of the drive member 23, and a guide tube 27 of the wire 26 is connected to one end of the drive member 23.
is held by stationary members 28 and 29,
The other end of the wire 26 is connected to one end of a ridge clutch lever 32 via a buffer spring 31. The ridge clutch lever 32 is pivotally connected to a stationary member by a shaft 33 such that when the lever 32 is in the position shown, the ridge clutch (not shown) is in the off position. The other end of this wire 26 is
Instead of the above-mentioned ridge clutch lever 32, it may be connected to the base of a seedling stopper 41 shown in FIG. When it is not in use. The seedling stopper 41 is adapted to be rotated by a drive mechanism (not shown).
Further, the reference numeral 43 indicates a stopper, and the reference numeral 44 indicates a buffer spring.

Now, when the rice transplanter rotates, when the piston 5 supplied with oil to the hydraulic cylinder 4 moves in the direction of the arrow 14, the planting machine 2 is raised as described above. When the piston 5 moves, the free end of the arm member 19 collides with the nut 47 to move the actuating member 8 in the direction of arrow 14, and further rotates the center marker 6 in the direction of arrow 13 via the wire 11. and store it in an unused position.
When the actuating member 8 has finished moving in the direction of the arrow 14, the hook pin 15 is pressed against the stepped portion 8b of the actuating member 8.
falls and the actuating member 8 and center marker 6
Lock in the inactive position. After the rice transplanter rotates in this state, the locking action of the knock pin on the locked operating member on the opposite side is released and another center marker is rotated to the operating position.

By the way, when the ridge clutch is actuated to plant seedlings with a different number of rows when approaching the edge of a ridge, the planting machine 2 is in a lowered state, but the center marker 6 must be retracted. For this purpose, it is troublesome to raise the planting machine 2, but when the ridge clutch lever 32 is rotated in the direction of arrow 34 to activate the ridge clutch, the wire 26 moves in the direction of arrow 35, that is. , the drive member 14 moves in the direction of arrow 14. This movement causes the head 23a of the driving member 23 to abut against the free end 21a of the arm member 21, causing the actuating member 8 to
direction, move the center marker 6 to the arrow 13
Turn it in the direction to forcibly store it, and
A locking mechanism including a knock pin 15 allows the center marker to be locked in the stored state. Similarly, the seedling stopper 4 shown in FIG.
1 in the direction of arrow 45 to bring the seedling stopper 41 into use, the actuating member 8 is driven in the direction of arrow 14 in conjunction with this, so that the center marker 6 in use is forcibly stored and stored. It can be locked.

[Effects of the Invention] As described above, according to the present invention, when the ridge clutch lever is operated in the on direction or when the seedling stopper is rotated in the use direction, the center marker is in the use position in conjunction with this. Since it is possible to forcibly store the center marker and lock it, it is possible to omit a special operation for storing the center marker.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an example of a riding rice transplanter, FIG. 2 is a side view of a center marker locking device showing an embodiment of the present invention, and FIG. 3 is a side view of a seedling stopper section. DESCRIPTION OF SYMBOLS 1... Travel vehicle, 2... Rice transplanting machine, 3... Link mechanism, 4... Hydraulic cylinder, 5... Piston, 6... Center marker, 7... Lid, 8... Operating member, 9... Holding member, 11, 17, 26... Wire, 12...
Shaft, 15... Lock pin of lock mechanism, 16... Spring, 18... Stopper, 19, 21... Arm member, 2
2, 28, 29...immovable member, 23...driving member, 2
4... Tsuba, 25... Spring, 27... Guide tube, 3
1... Spring, 32... Ridge clutch lever, 33, 42
...axis, 41...seedling stopper, 43...stopper,
44...Spring.

Claims (1)

[Claims] 1 A pair of center markers are rotatably provided on both sides of the rice transplanter, and the rice transplanter is connected to the center markers and is slidably supported along the hydraulic cylinder that moves the planting part up and down, and the piston. A pair of actuating members that are interlocked with each other during extension and move straight in the same direction to house the center marker in the active position, and a locking mechanism that locks the actuating members in the non-active position. A drive member that is slidably attached to an arm member fixed to the member and displaces the operating member to the lock position, a ridge clutch lever or seedling stopper connected to the drive member, and a ridge clutch lever or seedling stopper that turns on the ridge clutch lever. A center marker locking device for a rice transplanter, comprising means for retracting a center marker in an active position to a non-active position when the rice transplanter is turned in the direction of the rice transplanter or when the ridge stopper is turned to the use position, and locking the center marker with the locking mechanism described above. .