JPH0224405Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a speed change lever device in a rice transplanter equipped with a recoil type starter for starting the engine.

Conventionally, in the case of this type of rice transplanter, in order to enable engine starting from the operating section, a handle provided at the tip of the starter rope of the recoil starter was latched to a support member protruding from the machine body. Although it is located near the operation control section,
Even though the recoil type starter is used only when starting the engine, it is necessary to provide a support member exclusively for the handle near the operation section. Moreover, it is necessary to arrange various parts such as a gear shift lever near the operation control unit, and from the standpoint of design or to prevent erroneous operation, the gear shift lever and supporting members are placed on both sides of the seedling stand. However, there were disadvantages such as the structure being complicated.

Therefore, in order to solve the above-mentioned drawbacks, it has been proposed, for example, as shown in Japanese Utility Model Application Publication No. 53-143932, that the grip of the recoil starter is locked to the gear shift lever. This thing is
Since the starter rope is inserted inside the gear shift lever and is not exposed to the outside, there is a problem that the starter rope may not be able to absorb or alleviate the vibration of the gear shift lever, which may be due to its complicated structure. It was hot. Furthermore, the above-mentioned gear shift lever extends toward the front of the seedling platform and is rotated vertically to change the speed. There was a risk that the gear would come into contact with the pine seedlings and the speed change operation would interfere with the horizontal and vertical feeding of the seedlings.

The present invention was devised to eliminate these drawbacks in view of the above-mentioned actual situation, and its purpose is to move the transmission shaft from the transmission case installed at the front of the aircraft in the lateral direction of the aircraft. A speed change operation shaft that is provided so as to be retractable and retractable, and that is locked to the speed change shaft, extends rearward in a straight line, and is bent and extended upward from the extended end of the speed change operation shaft toward the front of the seedling stand. By rotating the gear shift lever left and right, the linear portion of the gear shift operating shaft is moved to the front and rear ends of the fuselage frame behind the transmission case in order to rotate the gear shift operating shaft about its axis. At the same time, by locking the handle of the recoil starter with the starter rope stretched from the recoil starter to the gear shift lever exposed to the outside, a span approximately equivalent to the longitudinal length of the aircraft frame is created. The gear shift operating shaft can be stably supported by the lever, and the gear lever does not interfere with horizontal or vertical feeding of seedlings during gear shifting operations.Moreover, the handle of the starter rope stretched from the recoil starter By supporting the shift lever on the shift lever, the structure can be simplified by eliminating the need for a dedicated support member for the handle, and the vibration of the shift lever can be absorbed and alleviated by the starter rope, making it possible to reduce the vibration of the shift lever. It is an object of the present invention to provide a speed change lever device for a rice transplanter that can prevent speed change due to vibration.

The structure of the present invention will be explained based on an embodiment shown in the drawings. 1 is a traveling body of a walking rice transplanter, and the front part of the traveling body 1 is equipped with an engine equipped with a recoil type starter 2. 3 is installed.
At the rear of the traveling body 1, a seedling stand 4 for placing pine seedlings is installed in a manner that is lower in the front and higher in the rear. It is installed protrudingly. Further, a transmission case 6 is provided at the front of the body frame 1a of the traveling body 1, located behind the engine 3, and a transmission case 6 is provided on one side of the transmission case 6. A shaft 7 is provided.

Reference numeral 8 denotes a speed change operation shaft, and the speed change operation shaft 8 extends rearward from the transmission case 6 in a straight line, and the straight portion thereof extends at least the front and rear ends of the fuselage frame 1a behind the mission case 6. It is rotatable about its axis while being supported by the body through support brackets 9 and 9a that protrude from the respective positions. Reference numeral 8a denotes a speed change lever, and the speed change lever 8a is bent and extended upward from the extending end of the speed change operation shaft 8 toward the front of the seedling stand 4, and is located near the driving operation section to operate the driving operation. The handle can be accessed from its position. On the other hand, a locking pawl 8b that locks onto the protruding end of the speed change shaft 7 is fixed to the front end of the speed change operation shaft 8, and the speed change lever 8a can be rotated left and right in the direction of arrow A as shown in FIG. Then, the transmission shaft 7 moves into and out of the transmission case 6 to change the speed while traveling, and is maintained in a neutral position during the rotation operation.

At the tip of the shift lever 8a, as shown in FIG. 4, there is a locking body 12 that locks a handle 11 provided at the free end of a starter rope 10 stretched from the recoil starter 2 via a fastener 9b. The locking body 12 has a funnel-shaped locking hole 12a, and a handle portion 1 to which the starter rope 10 is connected.
The first connecting portion 11a is adapted to lock in a penetrating manner. When the handle portion 11 is locked, the starter rope 10 exposed to the outside is kept under tension by a bullet (not shown) housed within the recoil type starter 2.

In addition, in the figure, 13 is a seedling planting claw, 14 is a rice paddy sliding float, and 15 is a body propulsion wheel.

Next, the operation of the present invention constructed as described above will be explained. First, the speed change operation using the speed change lever 8a is performed by grasping the speed change lever 8a from the driving operation position and rotating it left and right in the direction of arrow A along the front surface of the seedling platform 4. In this way, even though the gear shift lever 8a is located in front of the seedling platform, the gear shift operation is performed by rotating in the left and right direction along the front surface of the seedling platform 4, so it is not locked to the gear shift lever 8a. The distance between the handle portion 11 and the seedling stand 4 is determined by the speed change lever 8a.
It does not change in any way even if you change the speed.
Therefore, when changing gears, the handle 11 is placed on the seedling stand 4.
There is no interference with the pine seedlings placed on the pine seedlings, which will not interfere with the horizontal or vertical feeding of the seedlings. and,
To start the engine 3, a starting operation is performed by grasping the handle portion 11 of the starter rope 10, which is locked to the tip of the speed change lever 8a, from the driving operation position and pulling it toward the front side. And engine 3
When the handle part 11 is released after the starter is started, the starter rope 10 is pulled by the bullet installed in the recoil type starter 2, and since the locking hole 12a of the locking body 12 is funnel-shaped, the connection is completed. Part 11a
automatically passes through the locking hole 12a while being guided and locks the handle portion 11 to the locking body 12. When the handle part 11 is locked to the locking body 12, the connecting part 11a penetrates the locking hole 12a, so the gear shift lever 8a cannot be used to shift the gear in the left and right direction using the handle part 11. can.

In addition, the straight portion of the gear shift operation shaft, which extends linearly rearward from the transmission case installed at the front of the aircraft, is supported toward the aircraft at the front and rear ends of the aircraft frame 1a via brackets 9 and 9a. Therefore, the speed change operation shaft 8 can be stably supported with a span approximately equivalent to the longitudinal length of the aircraft frame 1a, and the speed change operation shaft 8 can be supported by the speed change lever 8a.
By rotating the shift shaft 7 around the axis, the shift shaft 7 can be moved in and out, thereby ensuring a reliable shift operation. Furthermore, the shift lever 8a, which is bent and extended upward from the extending end of the shift operation shaft 8 toward the front of the seedling stand 4, can also be used as a support member for the handle portion 11, so that the handle portion 11 is placed near the operation operation portion. Although the handle portion 11 is arranged and supported, the support structure of the handle portion 11 is made compact, and the body can be simplified.

Moreover, since the starter rope 10 supported by the shift lever 8a and exposed to the outside is always in a tensioned state, the shift lever 8a is energized by the starter rope 10, and the vibrations of the shift lever 8a are transferred to the starter rope. 10 can be absorbed and alleviated, and it is possible to prevent gear shift failure due to vibration of the gear shift lever 8a.

On the other hand, the gear shift lever 8 is rotated in the left and right direction.
a can be easily confirmed by simply visually observing the shift position rotated in either the left or right direction from the driving operation position, so that when the engine 3 is started, the gear shift position is tilted to either the left or right. By reliably positioning the shift lever 8a in the intermediate position, the engine 3 can be started safely without causing erroneous operation.

In short, the present invention has an engine equipped with a recoil starter and a transmission case installed at the front of the aircraft, and an operating handle installed at the rear of a seedling stand that is built low in the front and high in the rear. In the rice transplanter, a transmission shaft is provided so as to be able to protrude and retract from the transmission case in the lateral direction of the machine body, and a transmission operation shaft that is engaged with the transmission shaft is provided to extend linearly toward the rear. The shift lever is bent and extended upward from the extending end of the shift lever toward the front of the seedling stand, so that the shift lever can be rotated from side to side to rotate the shift operating shaft about its axis. The linear part of the operating shaft is supported on the aircraft side at the front and rear ends of the aircraft frame behind the transmission case, and the handle of the recoil starter is attached with the starter rope stretched from the recoil starter to the gear shift lever exposed to the outside. Therefore, the gear shift lever that performs gear change operation from the driving operation position is connected to the front of the seedling stand from the extending end of the gear shift operation shaft that extends rearward in a straight line from the transmission case. Since the gear lever is bent and extended upward toward the rear surface, and the gear shift operation is performed by rotating left and right along the front surface of the seedling stand, the distance between the tip handle of the gear shift lever and the handle part is determined according to the gear shift operation of the gear shift lever. Therefore, when changing the speed, the handle does not come into contact with the pine seedlings placed on the seedling stand. without causing any hindrance.

In addition, the speed change operation shaft that is attached to the speed change shaft that can be freely retracted and retracted in the lateral direction of the aircraft has its linear portion supported on the aircraft side at the front and rear ends of the aircraft frame behind the transmission case. It can be supported in a stable state with a span approximately equivalent to the front-to-back length of the aircraft frame, and therefore the shift shaft can be reliably moved in and out by rotating the shift lever around the axis of the shift operating shaft. In addition, the handle of the recoil starter can be locked using a gear lever extending from the extending end of the gear shifting operation shaft toward the front of the seedling stand, which was previously necessary. A support member dedicated to the handle of the starter rope is not required, and the machine body can be simplified.

Furthermore, the handle of the recoil starter is locked to the gear shift lever with the starter rope stretched from the recoil starter exposed to the outside, which simplifies the structure of the handle and prevents vibrations of the gear shift lever. This can be absorbed and alleviated by the starter rope, and can prevent gear shifting caused by vibration of the gear shift lever.

[Brief explanation of the drawing]

The drawings show an embodiment of a speed change lever device in a rice transplanter according to the present invention, in which FIG. 1 is an overall side view of the rice transplanter, FIG. 2 is a schematic side view of the main parts,
Fig. 3 is a plan view of the same as above, and Fig. 4 is an enlarged view of the main part with a part cut away. In the figure, 1 is a traveling aircraft body, 2 is a recoil type starter, 3 is an engine, 6 is a shift operation shaft, 8a is a shift lever, 10 is a starter rope, 11 is a handle part,
12 is a locking body.

Claims (1)

[Scope of utility model registration request] A rice transplanter has an engine equipped with a recoil starter and a transmission case installed at the front of the machine, and a driving handle located at the rear of a seedling stand that is built low at the front and high at the rear. A transmission shaft is provided so as to be freely protrusive and retractable from the transmission case in the lateral direction of the aircraft body, and a transmission shaft that is engaged with the transmission shaft extends linearly toward the rear, and seedlings are loaded from the extending end of the transmission shaft. By rotating the gear lever to the left and right, which is bent upward and extended toward the front of the platform,
In order to rotate the speed change operation shaft about its axis, a linear portion of the speed change operation shaft is supported on the body side at the front and rear ends of the body frame behind the transmission case, and a recoil type starter is attached to the speed change lever. A speed change lever device for a rice transplanter, characterized in that a handle portion of a recoil type starter is locked with a starter rope stretched from the top exposed to the outside.