JPS6145366Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is applicable to a rice transplanter, etc., which is equipped with a movable operating member displaceable by wire operation to operate a clutch, etc. in a transmission case. It is related to the device.

In other words, in the conventional rice transplanter as described above, the end of the inner wire led into the transmission case from the inner wire insertion hole in the transmission case wall is fixed to the movable operating member in advance, and then the transmission case is closed. However, this idea
It is possible to assemble the wires from outside the closed transmission case, making assembly extremely easy. The purpose is to provide a new operating device for rice transplanters and the like.

Regarding the illustrated embodiment, the configuration of the operating device according to the invention will be explained. As shown in FIG. The main transmission 3 that makes up the aircraft is located at the rear of 2.
Transmission case 4 and planting part transmission 5
are sequentially connected and installed from the front side to the rear side, and a control handle 6 is provided extending rearward and upward from the rear end of the fuselage, and a seedling platform 7 in the planting section can be moved horizontally and reciprocally on this control handle 6. In addition to supporting the
The planting arm 8 of the planting section is supported by the planting section transmission 5 so as to be movable up and down, and the rice transplanter is equipped with a float 9 suspended from the lower surface of the machine. The power is input to the main transmission 3 through belt 10 transmission,
The driving power is supplied from inside the main transmission 3 to the inside of the chain case 10, which is supported by the main transmission 3 at the front end so as to be movable up and down, and at the rear end supports the drive wheel 1 with its axle 1a. At the same time, the driving force of the planting section is transmitted from the main transmission 3 through the transmission case 4 to the planting section transmission 5, and the planting section driving force is transmitted to the planting section transmission 5. A transverse feed shaft 11 extending from the shaft 5 and capable of horizontal reciprocating movement is interlocked and connected to the seedling tray 7 by a transverse arm 12 to obtain a transverse feed drive for the seedling tray 7. This invention is applicable to a rice transplanter configured so that a planting arm shaft 13 extending from a planting section transmission 5 drives a planting arm 8 vertically through a crank mechanism. is implemented as follows.

That is, as shown in FIGS. 2 and 3, the planting arm shaft 13 is rotatably supported in the lower part of the planting section transmission 5 along the transverse direction of the machine body. This planting arm shaft 13
is for driving the planting arm 8 as described above, and is connected to the transverse feed shaft 11 as described later in the planting section transmission 5 to drive the seedling platform 7. A planting clutch 14 is provided on the planting arm shaft 13 for starting and stopping the driving of the planting section by intermittent input transmission to the shaft 13. That is, on the planting arm shaft 13, the transmission case 4
A bevel gear 17 meshed with a bevel gear 16 fitted on the end of the transmission shaft 15 extending from inside into the planting part transmission 5 is loosely fitted, and this bevel gear 17 and the planting part transmission 5 are loosely fitted. and a clutch metal fitting 18 spline-fitted to the attached arm shaft 13, respectively.
By forming pawls 14a and 14b that can engage with each other, the clutch metal fitting 18 is slidably displaced on the planting arm shaft 13 in the direction of the bevel gear 17 as shown in FIG. A planting clutch 14 is constructed, which is engaged by engaging 14b. In the illustrated case, the operating device according to this invention is configured as a device for operating the planting clutch 14 described above.

As similarly shown in FIGS. 2 and 3, the operating device includes a vertical operating shaft 20 rotatably supported by a bracket 19 fixedly installed on the inner surface of the planting section transmission 5. The pin 21a attached to the shifter 21 fixedly provided on the operating shaft 20 is brought into engagement with the clutch hardware 18 by facing into the annular groove on the circumferential surface of the clutch hardware 18.
Due to the rotational displacement of the shifter 21 due to the rotational displacement of the operation shaft 20, the clutch metal fitting 1 is moved on the planting arm shaft 13.
This is done to obtain a sliding displacement of 8. The clutch hardware 18 is biased to slide in the direction of engagement of the clutch 14 by a clutch spring 22 provided on the planting arm shaft 13, and the clutch hardware 18 is shown in FIG.
As shown in the lower half of 8, when the clutch hardware 18 is placed in the clutch 14 disengaged position, the pin 24, which is frictionally engaged with the clutch hardware 18 by the force of the spring 23, acts on the clutch hardware 18 in the clutch 14 disengaged position. The clutch spring 22 is provided in order to relieve the movement force exerted by the clutch spring 22. A horizontal rotating arm 25 is attached to the upper end of the operating shaft 20, and a wire 26 rotates the operating shaft 20 by rotating the rotating arm 25.
It is provided.

As shown in FIGS. 3 and 4, the above-mentioned wire 26
The inner wire 27 is inserted into the inner wire insertion hole 28a formed in the outer stopper 28 that is integrally provided on the back surface of the planting part transmission 5, and is inserted into the planting part transmission 5. However, unlike the usual case, the end of the inner wire 27 is not fixed to the rotating arm 25, but is engaged with the rotating arm 25 in the following manner.
That is, an engaging metal fitting 29 is welded and fixed to the upper surface of the end of the rotating arm 25 opposite to the operating shaft 20, and the plate-shaped engaging metal fitting 29 has an inner wire inserted through its rising portion toward the upper end. It is formed so that it is inclined in a direction away from the hole 28a, and a slot 30 is provided in the shape of a notch from the upper end of the rising portion. The slot 30 has a wide slot 30a located on the upper side and expanding upward.
and a narrow slot portion 30b that has a groove width equal to the lower end width of the wide slot portion 30a and continues below the wide slot portion 30a. There is. At the end of the inner wire 27, a substantially spherical engagement head 27a is formed, the diameter of which is smaller than the inner diameter of the inner wire insertion hole 28a and larger than the width of the narrow groove portion 30b. The end of the inner wire 27 is inserted into the slot 3.
0 and the engaging head 27 at the end of the wire 27.
a is engaged with the engaging metal fitting 29 on the side opposite to the inner wire insertion hole 28a at the narrow slot 30b position. The pulling direction of the wire 26 or its inner wire 27 is set to displace the clutch hardware 18 in the direction of disengaging the clutch 14 against the force of the clutch spring 22. The outer wire 31 of the wire 26 has a stopper 3 provided at its end.
The threaded portion of No. 2 is screwed into an inner wire insertion hole 28a formed in the screw hole and received by the outer receiving portion 28, and a nut 32a for screw operation and positioning is provided on the stopper 32. is provided. The other end of the wire 26 is connected to the control handle 6.
The wire 26 is operated by a planting clutch lever (not shown) supported by the handle 6.

The upper end of the planting section transmission 5 is used for maintenance,
The opening is formed as an opening for inspection, and the opening is closed by a lid 5a that is removably fixed to the transmission 5 body using a fixture (not shown). As shown in FIGS. 2 and 3, an intermediate shaft 33, a reciprocating feed screw 34, and a camshaft 35 are further installed laterally within the planting section transmission 5. A chain 38 is suspended between the sprocket wheel 36 on the attached arm shaft 13 and the sprocket wheel 37 on the intermediate shaft 33,
It is interlocked and connected to the planting arm shaft 13. Further, the intermediate shaft 33 and the reciprocating feed screw 34 are interlocked and connected by meshing gears 39 and 40 provided thereon. A nut member 41 is provided on the reciprocating feed screw 34, and an arm 41a extending from the nut member 41, which is reciprocated on the screw 34 as the reciprocating feed screw 34 rotates, is connected to the lateral feed shaft. 11 to obtain lateral reciprocating movement of the lateral feed shaft 11 and, therefore, lateral reciprocating movement of the seedling table 7. At each stroke end of the nut member 41 on the reciprocating feed screw 34, the camshaft 35 is connected to the reciprocating feed screw 34 via the cam mechanism 42.
This camshaft 35 is designed to be rotationally driven by a camshaft (not shown) for vertically feeding the seedling pine on the seedling platform 7 at each stroke end of the horizontal reciprocating movement of the seedling platform 7. In order to intermittently drive the seedling vertical feeding device, the seedling vertical feeding device is connected to the seedling vertical feeding device.

In FIG. 1, 43 is a hydraulic actuator that swings the drive wheel 1 up and down; 44 is a V-belt that transmits input from the engine 2 to the pump of this hydraulic actuator 43; 45 is a fuel tank for the engine 2;
46 is a preliminary seedling stand.

Based on the above-described configuration, the illustrated operating device according to the present invention is capable of assembling the wire 26 for operating the planting clutch 14 even after the planting portion transmission 5 is sealed with the lid 5a as described above. I am familiar with being able to do this. That is, wire 2
6.Without the outer fastening on the tip side,
When the inner wire 27 of the wire 26 is inserted into the planting part transmission 5 through the inner wire insertion hole 28a, the inner wire 27
The engaging head 27a at the end is first positioned at the position 27a () as shown by the chain line in FIG.
It comes into contact with the surface on the inner wire insertion hole 28a side. When the inner wire 27 is further pushed into the planting part transmission 5 from this state, the engaging head 27a at the end of the wire 27 is guided by the inclined surface of the engaging metal fitting 29 and moves the inclined surface into the fourth The inner wire gradually rises to a state 27a () as shown by the chain line in the figure, and finally rises to almost the upper edge of the engaging fitting 29 at a position 27a () as shown by the chain line in FIG. 27 is pushed in, the engaging head 27a climbs over the engaging fitting 29 in the length direction of the wire 27, and due to its own weight, the engaging head 27a moves to the position 27a (as shown by the chain line in FIG. 4). ), and at this time, the tip of the inner wire 27 main body falls into the slot 30 and narrows while being guided by the wide slot 30a that widens upward in the slot 30. It reaches the width groove hole portion 30b. Therefore, when the inner wire 27 is pulled this time, the engagement head 27a at the end of the wire 27 is completely attached to the engagement fitting 29 on the opposite side of the inner wire insertion hole 28a, as shown by the solid line in FIG. An engaged state is obtained. Now, use the nut 32a to attach the stopper 32 at the end of the outer wire 31 to the inner wire insertion hole 2.
The assembly of the tip end of the wire 26 is completed by screwing it into the wire 8a and fixing the outer part. When inserting the tip of the inner wire 27 into the planting part transmission 5 as described above, the inner wire 27
Connect the wire 27 so that the tip is slightly raised.
By inserting the inner wire 27 through the inner wire insertion hole 28a while tilting the inner wire 27, the inner wire 27 can be assembled more easily. The proximal end of the wire 26 can be attached to the control handle 6 in a conventional manner.

As is clear from the description of the embodiments above, the operating device for the rice transplanter, etc. of this invention has a wire 26
In a rice transplanter or the like in which a movable operating member 25 is disposed in the transmission case 5 to operate the clutch 14 etc. by being displaced by operation, the movable operating member 25
The engagement part 29 is a rising engagement part 29 located opposite to the inner wire insertion hole 28a of the transmission case wall, and is inclined so that the upper end side is further away from the inner wire insertion hole 28a. A slot 30 having a wide slot 30a on the upper end side that expands to
A notch is provided from the upper end side, and the end of the inner wire 27 inserted into the transmission case from the inner wire insertion hole 28a is inserted into the slot 30, and an engaging head 27a formed at the end of the inner wire is inserted through the inner wire. It is characterized by being engaged with the engaging portion 29 on the opposite side of the hole 28a and below the wide slot portion 30a, and has the following effects.

That is, in the operating device of this invention, the end of the inner wire 27 is pushed into the transmission case 5 through the inner wire insertion hole 28a in the transmission case wall, and the engaging head 27a at the end of the wire 27 is once inserted into the inner wire insertion hole 28a. When the inner wire 27 is inserted into the movable operating member 29 at the side, the engagement head 27a climbs up the inclined engagement portion 29 surface of the movable operating member 25, and finally climbs over the inner wire 27. Into the slot 30 with an open top end,
Wire assembly can be performed from outside the closed transmission case 5 by utilizing the fact that the engaging head 27a falls into the opposite side of the inner wire insertion hole 28a while being guided by the wide slot 30a. This makes it an operating device that is extremely easy to assemble. Therefore, the operating device of this invention does not cause assembly problems even if the movable operating member associated with the wire end is installed inside the transmission case, and does not cause any problems such as adhesion of mud or rust. To always ensure smooth operation of movable operating members such as clutches in rice transplanters, etc., which tend to operate unsmoothly due to occurrence of such occurrences, by arranging them within a transmission case without complicating wire assembly. I am familiar with the things that I can do.

[Brief explanation of the drawing]

Figure 1 is a schematic side view of a rice transplanter equipped with an embodiment of this invention, Figure 2 is a partially exploded vertical sectional view of the main parts of the rice transplanter, and Figure 3 is a partial longitudinal sectional view of the main parts of the rice transplanter. Figure 4 is an enlarged longitudinal sectional side view of the main part of Figure 3, Figure 5
The figure is an enlarged longitudinal sectional front view of the main part of Figure 2. 5... Planting section transmission, 5a...
Lid, 14... Planting clutch, 18... Clutch hardware, 20... Operating shaft, 21... Shifter, 25...
...Rotating arm, 26...Wire, 27...Inner wire, 27a...Engaging head, 28...Outer stop portion, 28a...Inner wire insertion hole, 29...
...Engaging metal fitting, 30...Slot hole, 30a...Wide slot part, 30b...Narrow width slot part, 32...Stopping metal fitting,
32a...Natsuto.

Claims (1)

[Scope of utility model registration request] In a rice transplanter or the like in which a transmission case is equipped with a movable operating member that is displaced by wire operation to operate a clutch or the like, the movable operating member 25 is provided with:
A rising engagement part 29 is provided opposite to the inner wire insertion hole 28a in the transmission case wall, and is inclined in a direction that goes away from the inner wire insertion hole 28a toward the upper end. A slot 30 having a wide groove portion 30a that opens on the upper end side is provided in the engaging portion 29 in the shape of a notch from the upper end side of the engaging portion 29, and the inner wire is inserted into the transmission case through the inner wire insertion hole 28a. The end of the inner wire 27 is inserted into the slot 30, and an engaging head 27a formed on the end of the inner wire is connected to the engaging portion 29 on the opposite side of the inner wire insertion hole 28a and below the wide slot 30a. An operating device characterized by being engaged.