JPS6131626Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a handle device for a rice transplanter.

Conventionally, in walk-behind rice transplanters, the handle is fixed and protrudes from the center of the rear of the machine, so when planting seedlings, the seedling stand and the high part of the machine obstruct the view, making it difficult to see adjacent planted seedlings. It was obstructing the straight line of planting.

Therefore, as disclosed in Japanese Utility Model Application Publication No. 52-143327, etc., a handle device has been devised in which the grip portion of the handle can be moved horizontally and laterally with respect to the direction of movement of the aircraft.

However, in the above-mentioned handle device, fixing and releasing operations of the handle cannot be performed at the handle portion when changing the position, and furthermore, the structure is complicated.

Further, Japanese Utility Model Application Publication No. 54-25436 discloses a structure in which horizontal sliding is performed using a square shaft and a square pipe,
Furthermore, Japanese Utility Model Application Publication No. 52-146507 discloses a handle fixing structure using a handle lever and a pin, but simply combining these structural techniques still poses the problem of smoothly adjusting the sliding position of the handle. could not be solved, and various considerations were made as to whether there was a satisfactory structure.

In view of these problems, the present invention has a seedling stand with a low front and rear height at the rear of the machine, a planting claw at the front of the lower part of the seedling stand, and a planting claw at the rear of the lower part of the seedling stand. In a walk-behind rice transplanter in which the rear end of the planting transmission case is positioned, a square shaft having approximately the length of the horizontal sliding range of the seedling stand is horizontally mounted on the rear end of the planting transmission case. A square pipe for supporting the handle, which is formed as short as possible, is fitted onto the shaft so as to be able to slide horizontally, and a pin insertion hole is provided in the same square pipe, and a pin insertion hole is provided at a predetermined position on the square shaft to match the insertion hole. Preferably, a plurality of fixing pin holes are provided, and pins that can move forward and backward are inserted into each aligned hole, so that the horizontal sliding position of the handle can be adjusted through the square pipe, and the handle is The left and right rods are erected rearward and upward from the square pipe in a shape that spreads out at the end, and a fixed rod is horizontally suspended between the approximately central portions of the left and right rods in a state substantially parallel to the corner axis. By installing a lever in the middle to move the pin forward and backward,
To provide a handle device for a rice transplanter which can improve visibility of adjacent planted seedlings by moving the handle laterally during planting, improve straight-line performance, and facilitate operation when turning.

To explain the embodiment of this invention in detail based on the drawings, A shows a walk-behind rice transplanter with two rows, an engine 1 is mounted on the front part of the machine body a, and wheels 2 are mounted on the left and right sides of the machine body A so that they can be raised and lowered. A float 3 is provided at the lower center of the aircraft body a, a planting section 4 is provided at the rear of the aircraft body, and a seedling stand 5 with a low front and rear height is provided behind the planting section 4. While traveling, the center float 3 holds the machine above the paddy field, and from the seedling platform 5, which slides sideways, the planting claws 6 of the planting section 4 cut seedling blocks and plant them in the paddy field. It is something that will go on.

Reference numeral 7 denotes a planting mission case, the rear end of which is located on the lower back surface of the seedling stand 5, and shaft supports 8 are provided on both left and right sides of the planting mission case 7, and the coaxial A hexagonal shaft 9 is installed on the support 8, and the hexagonal shaft 9 has a length approximately equal to the horizontal sliding range of the seedling platform 5.

A hexagonal pipe 10 for supporting the handle, which is formed as short as possible, is fitted onto the hexagonal shaft 9 so as to be able to slide horizontally. You can move to

A handle 11 is fixed to the hexagonal pipe 10, and the handle 11 is connected to the left and right rods 11a, 11b.
rising rearward and upward from the hexagonal pipe 10, and
It is erected in a shape that widens toward the end, and can be slid laterally through the hexagonal pipe 10.

A fixed rod 21 is horizontally suspended parallel to the hexagonal shaft 9 between the center portions of the left and right rods 11a and 11b, and a midway portion of the fixed rod 21 is used for advancing and retracting a pin 13, which will be described later. lever 19 is installed.

12 is a pin insertion hole provided in the peripheral wall of the hexagonal pipe 10, 13 is a pin that can be freely inserted into the pin insertion hole 12, 14 is a spring biased on the head of the pin 13, 15 is a pin case, 16 is an inner wire connected to the head of the pin 13, 17 is an outer wire, and 18 is an outer wire receiver. The inner wire 16 is connected to a lever 19 provided on the handle 11 fixing rod 21, and the lever 1
9 allows the pin 13 to move forward and backward into the pin insertion hole 12.

20 is a hexagonal pipe 10 on the peripheral wall of the hexagonal shaft 9
This is a fixing pin hole provided opposite to the pin insertion hole 12 of the handle 11 connected to the hexagonal pipe 10.
For example, fixing pin holes 20 are provided at three locations so that the handle is located at the left and right ends and the center of the hexagonal shaft 9.

Therefore, when positioning the handle 11 at the left end, the inner wire 1 is
6 to pull up the pin 13 so that the hexagonal pipe 10 can slide along the hexagonal shaft 9, move the handle 11 to the left end along the hexagonal shaft 9, and then return the lever 19 to its original position. By returning the pin 13 to its original position, the pin 13 is inserted into the pin insertion hole 12 and the fixing pin hole 20 by the force of the spring 14, and the hexagonal pipe 10 is fixed to the hexagonal shaft 9 and does not move laterally. is what is fixed.

In the embodiment of this invention, when the machine body is to be rotated during planting, for example, when a right turn is to be made, the pin 13 is moved to the fixing pin by the lever 19 of the handle 11. Remove it from the hole 20, move the handle 19 to the right end along the hexagonal shaft 9, return the lever 19 to its original position, and remove the pin 1.
3 is inserted into the fixing pin hole 20 to fix the handle and turn to the right, and when planting straight ahead after turning, return the handle 19 to the center position of the machine to perform planting. , or the driver can carry out planting traveling straight along the adjacent planting row with the handle 19 laterally moved to a position where the marker can be easily seen.

At this time, a fixed rod is placed horizontally in the center of the left and right rods of the handle to ensure the strength of the handle, and a lever is attached to the fixed rod to adjust the sliding position of the handle. In order to adjust the slide position of the handle, the operator must grasp the lever together with the fixing rod with one hand, and hold the handle with the other hand.
Alternatively, you can simply grip the fixed rod and perform sliding operations.

In other words, if the operator holds the handle with the other hand that is not holding the lever, the operator's body will naturally become half-body and push the handle and fixed rod to the left or right. Since the square pipe can be operated in a fixed position, the sliding of the square pipe can be done very smoothly.

Also, when holding the fixed rod with the other hand,
Since the fixing rod is horizontally suspended substantially parallel to the square axis, if the fixing rod is moved laterally to the left and right, the square pipe can slide smoothly.

According to this invention, since the handle slides sideways, if the handle is moved in the turning direction when turning, the turning radius of the handle can be made small, making work easier and turning operation easier.
By moving the steering wheel to the side where it is easier to see adjacent seedlings even when driving straight ahead for planting, it is easy to visually estimate the marker, and it is possible to carry out planting driving while looking at adjacent seedlings without any hindrance.

Moreover, the sliding position of the handle can be adjusted quickly by moving the pin forward and backward using the lever provided at the handle's hand.
In addition, it is possible to easily adjust the same position, and it is possible to improve operability and work efficiency. Furthermore, when the seedling stand is arranged with the front low and the rear high, and the square pipe is fitted to the square shaft installed horizontally at the rear of the lower part of the seedling stand, and the square pipe is slid horizontally,
A handle installed upright from a square pipe, or even a same square pipe, can be slid sideways smoothly without interfering with other objects, and the handle can be placed as close to the machine as possible. for,
The overall length of the rice transplanter can be made compact, improving work performance and storage convenience.

In addition, because the square pipe that directly supports the handle is formed to be as narrow as possible, the contact area between the square pipe and the square shaft is reduced, allowing the square pipe to slide smoothly. It is effective.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the proposed device. FIG. 2 is a side view of the same. FIG. 3 is an enlarged sectional view taken along the line of FIG.
FIG. 4 is an explanatory cross-sectional view taken along the line of FIG. 3. A: Walking rice transplanter, a: Aircraft, 1: Engine,
2: Wheel, 3: Float, 4: Planting section, 5: Seedling stand, 6: Planting claw, 7: Planting mission case,
8: shaft support, 9: hexagonal shaft, 10: hexagonal pipe,
11: Handle, 12: Pin insertion hole, 13: Pin, 14: Spring, 15: Pin case, 1
6: Inner wire, 17: Outer wire, 18: Outer wire receiver, 19: Lever, 20: Fixing pin hole.

Claims (1)

[Scope of utility model registration request] The rear of the machine has a seedling stand 5 with a low front and rear height, and a planting claw 6 is provided at the front of the bottom of the seedling stand 5, and a planting mechanism case 7 is installed at the rear of the bottom of the seedling stand 5. In a walk-behind rice transplanter in which the rear end is positioned, a square shaft having approximately the length of the horizontal sliding range of the seedling platform 5 is horizontally mounted on the rear end of the planting transmission case 7, and the same square shaft is A square pipe for supporting the handle formed as short as possible is fitted so as to be slidable laterally, and a pin insertion hole 12 is provided in the same square pipe, and a pin insertion hole 12 is provided at a predetermined position of the square shaft. As many fixing pin holes 20 as possible
The handle 11 is constructed so that the horizontal sliding position of the handle 11 can be adjusted via the square pipe by inserting a pin 13 that can move forward and backward into each aligned hole 12, 20. ，
11b rising rearward and upward from the square pipe, and
A fixed rod 21 is erected in a shape that spreads toward the end, and is fixed approximately parallel to the corner axis between the approximately central portions of the left and right rods 11a and 11b.
horizontally, and the above pin 1 is placed in the middle of the fixing rod 21.
A handle device for a rice transplanter, which is equipped with a lever 19 for advancing and retracting operations as described in No. 3.