JP3501404B2 - Walking seedling planter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a walking type rice transplanter such as a walking type rice transplanter.

[0002]

2. Description of the Related Art Conventionally, there has been a walk-type tiller provided with a lever which allows a rear end portion of the operator's finger holding the handle portion to rotate the rear end portion in the vertical direction.

[0003]

The above-mentioned conventional technique has an advantage that the lever can be operated without releasing the hand from the handle. This technique is applied to a walking type seedling planting machine in which a rear part of the machine is provided with a seedling placing part with a lower front side and a higher rear side, and a handle is provided so that the grip part extends rearward with respect to the seedling placing part. If it is applied to a machine, improvement in operability can be expected as in the above advantages. However, in the walk-type seedling planting machine, since the seedlings are fed from the rear side of the handle to the seedling placing table, the levers become an obstacle during the feeding of the seedlings, and at the time of feeding the seedlings. There is a possibility that the lever may be operated unexpectedly by making contact. Also,
If the lever is hidden under the supplied seedlings, there is a problem that the lever is hard to see and difficult to operate. Therefore, an object of the present invention is to prevent such a problem.

[0004]

In order to solve the above-mentioned problems, the present invention provides a main body frame 12 with seedling placing portions 5 and 5a and a main body frame 12 each having a front side lower and a rear side higher and inclined at the rear part of the machine body. The rear end of the seed frame 12 is arranged at a position higher than the vertical center of the seedling placing parts 5, 5a and below the seedling placing parts 5, 5a, and from the rear end of the main body frame 12 to the seedling placing part 5. , 5a are provided to support the upper portions of the seedling mounting portions 5, 5a, and the grip portion 4a extends rearward with respect to the seedling placing portions 5, 5a, and is more horizontal than the front-back inclination of the main body frame 12 in a side view. In the walk-type seedling planting machine provided with the handle 4, the handle mounting portion 4b is provided at the rear end of the main body frame 12.
And a first planting clutch lever 16 on the body frame 12 side near the rear end of the body frame 12.
In the provided handle 4 is rotated adjustably configured the height of the grip portion 4a of the handle 4 around the handle mounting portion 4b, the fingers of the operator's hand gripping the grip portion 4a of the handle 4 An operable second planting clutch lever 19 is provided on the handle 4, and the first planting clutch lever 16 and the first planting clutch lever 19 are provided .
The rear end of each of the two planting clutch levers 19 is moved upward and downward.
With a configuration in which the rotation operation to the direction, the second planting clutch
Ji lever -19 place its rear end at the rear side of the first planting clutch lever -16 below the seedling unit 5,5a upper end, the first planting clutch lever -16 Kaidomisao upward
With the planting clutch disengaged in the work, by rotating downward
Second planting with the planting clutch in the engaged state
By rotating the clutch lever 19 downward, the wire 2
Rotate the first planting clutch lever 16 upward via 3
To disengage the planting clutch and
Rotate the clip lever 16 downward to engage the planting clutch.
When it is in the open state, the second planting clutch lever-19
In this configuration, the rear end portion of the second planting clutch lever 19 is arranged rearward of the rear end portions of the seedling placing portions 5, 5a.

[0005]

With this configuration, the walking type seedling planter supports the upper portions of the seedling placing portions 5 and 5a which are inclined at the front side and the rear side at a high level from the rear end portion of the main body frame 12, so that the seedling placing section is The support of the upper portions of 5, 5a is stable. Further, a handle mounting portion 4b is provided at the rear end of the body frame 12 so that the handle 4 is closer to horizontal than the front-back inclination of the body frame 12 in a side view.
The handle mounting portion 4b and the handle 4 are provided.
The height difference between the grip 4a and the grip 4a becomes small, and by rotating the handle 4 around the handle mounting portion 4b, the grip 4a of the handle 4 is not moved too much forward and backward, and the height can be adjusted reasonably. can do. Further, even if the handle 4 is rotated to adjust the height of the grip portion 4a of the handle 4, the grip portion 4a and the second planting clutch lever can be adjusted.
The positional relationship with 19 does not change, and the operator holds the grip 4a of the handle 4 and uses the finger of the operator's hand to make a second planting click.
The rear end portion of the latch lever -19 can easily operate in the vertical direction. Also, attach the first planting clutch lever 16 to the main body frame.
The first planting clutch lever 16 is provided on the handle 4 because it is provided on the body frame 12 side near the rear end of the frame 12.
Even if the handle 4 is rotated, it does not move, the weight of the rotating portion of the handle 4 can be reduced, and the handle 4 can be easily rotated. Moreover, the first
The planting clutch lever 16 can be easily mounted and the first planting can be performed at a relatively high position that is easy for the operator to operate.
A clutch lever 16 can be arranged. In addition, when supplying seedlings from the rear side of the handle 4 to the seedling placing portions 5, 5a, the second planting is performed.
Since the rear end of the attachment clutch lever 19 is arranged below the upper ends of the seedling placement portions 5, 5a, the second planting clutch
It is less likely to pitch lever -19 gets in the way. And the
The one-planting clutch lever 16 is planted by rotating upward.
Put the clutch in the disengaged state and rotate it downward to plant the plant.
While the latch is in the on state, the second planting
Latch lever 19 is a planting clutch by rotating downward.
Since it is configured to turn off, the planting clutch is engaged.
When switching to the dry state, the first planting clutch lever-1
Push 6 downwards to operate, and disengage the planting clutch.
When switching to the state, the second planting clutch lever-19
It is sufficient to push it down and operate it.
All the off operations can be performed by pressing the levers 16 and 19.
Get Further, an operator who holds the grip portion 4a of the handle 4
But push the second planting clutch lever-19 downward.
The planting clutch can be immediately disengaged by operation. Well
Also, the second planting clutch lever 19 is rotated downward.
Since it is configured to disengage the planting clutch with,
The seedlings supplied by the seedling supply work to the seedling seedling placement parts 5, 5a are first
The second planting clutch lever 19 is hit from above and the second
Even if the planting clutch lever 19 is operated unexpectedly, planting
It is safe because the clutch is disengaged. Moreover,
Use the wire 23 to rotate the second planting clutch lever 19.
Transmission to the first planting clutch lever 16 via
Therefore, regardless of the rotation of the handle 4, the second planting class is
Operation of the clip lever 19 is the first planting clutch lever 16
Can be reliably transmitted to . Also, the first planting class
Rotate the clip lever 16 downward to engage the planting clutch.
When it is in the open state, the second planting clutch lever-19
Since it is configured to return to the state of, the planting clutch
When in the engaged state, the second planting clutch lever 19 is always
Operate the planting clutch from the engaged state to the disengaged state.
You can

[0006] The second planting rear end of the clutch lever 19 by placing behind the rear end portion of the seedling parts 5,5a and second planting rear end portion seedling portion 5 of the clutch lever 19, The second planting clutch lever 19 can be seen well and is easy to operate without being hidden under the seedlings supplied to 5a.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. The walk-behind rice transplanter 1 shown in FIGS. 2 and 3 has an engine 2 and a transmission 3 mounted at the front of the machine body, and a handle 4 is provided at the rear of the machine body so as to incline rearward. A seedling stand 5 is provided on the upper side along with so as to reciprocate left and right. Incidentally, FIG.
As shown in, the upper part of the seedling placing table 5 is supported by a rear end portion of a main body frame 12 described later via a supporting member.
In the fuselage between the engine 2 and the transmission 3 and the steering wheel 4,
Traveling wheels 7 are axially supported at the tip ends of a pair of left and right transmission cases 6 that receive the power changed by the transmission 3 and have their base ends pivotally supported so as to be rotatable back and forth. In addition, the center float 8 and the side float 9,
9 are each supported by a link mechanism so as to be vertically movable within a predetermined range. Behind the engine 2 is a hydraulic system 1
0 is provided, and the transmission case 6 is provided by the hydraulic device 10.
Can be rotated back and forth to move the traveling wheels 7 up and down to change the support height of the machine body, and during traveling rice planting, the traveling wheels 7 can be moved up and down relatively to the vertical movement of the center float 8. , The planting depth of seedlings is kept almost constant.

A plurality (4 in this embodiment) of seedling planting bodies 11 are provided so as to face the inclined lower end portion of the seedling placing table 5, and the seedlings placed on the seedling placing table 5 are taken out one by one. It is planted in the field. Power is transmitted to the drive unit of the seedling planting body 11 and the drive unit of the seedling placing base 5 by a transmission frame 12 extending rearward from the transmission 3 and also serving as a main body frame.

On the lower back part of the handle 4, the main clutch lever for turning on and off the driving wheels 7 and the seedling placing table 5 and the driving portion of the seedling planting body 11, the seedling placing stand 5, seedling planting. A clutch lever portion 13 is provided in which a planting clutch lever for turning on and off power to the drive portion of the body 11 and a hydraulic lever for switching the valves of the hydraulic device 10 to move the traveling wheels 7 up and down are arranged. .

As shown in FIG. 1, the clutch lever portion 13 provided near the handle 4 has a lever box 14
A clutch lever 16 is pivotally supported via a shaft 15 between an engaged position (solid line) and a disengaged position (dotted line). A coupling plate 17 curved in a U shape is attached to the clutch lever 16, and the coupling plate 17 has a spring 1
The clutch of the drive unit of the seedling placing table 5 and the seedling planting body 11 is connected via 8 so as to be switched.

On the other hand, in the vicinity of the grip portion 4a of the handle 4,
Support metal fitting 2 with lever 19 protruding downward from handle 4
0 is rotatably supported by a shaft 21 via a shaft 21, and one end of an inner wire 23 is connected to a rotating arm 22 connected to a lever 19 and the other end is connected to the connecting plate 17.
3 is inserted and supported by the outer tube 24. Then, with the clutch lever 16 in the engaged position (solid line), the lever 19 is pushed downward by the thumb of the operator's hand holding the grip portion 4a of the handle to connect via the rotating arm 22 and the inner wire 23. The plate 17 is rotated to move the clutch lever 16 to the disengaged position (dashed line).

An extension frame 5a is provided at the rear end of the seedling placing table 5.
Is movably provided in the extended position and the storage position.
As shown in FIG. 1, the lever 19 is arranged such that its rear end is located below the upper end of the seedling placing portion including the seedling placing base 5 and the extension frame 5a, and is also shown in FIG. As described above, it is arranged so as to be located below the upper end of the seedling placing portion formed of the seedling placing base 5 formed to be long rearward. Further, the lever 19 is arranged so as to be located behind the rear ends of the seedling placing portions 5 and 5a by L1 and L2.

In the drawings, reference numeral 25 is a side clutch lever, and 26 is a preliminary seedling placing table. Incidentally, in which the lever 19 may be provided on the left and right of the handle 4, 4 as shown in FIG.

In the walk-behind rice transplanter 1 of the embodiment having the above-described structure, when the rice is introduced into the paddy field and the rice transplanting operation is started, first, the hydraulic lever is operated while the traveling wheels 7 are in contact with the tiller. Switch the center float 8 and the side floats 9 and 9 to the paddy field to support the aircraft, and then
When the clutch lever 16 (in this case, the planting clutch lever) is in the engaged state and the main clutch lever is in the engaged state, the aircraft runs, and at the same time, the seedling stand 5 and the seedling planting body 11 are operated to perform seedling planting work. Be seen.

When the aircraft comes to the end of the field and turns headland,
When the operator operates the hydraulic lever to lower the traveling wheel 7 to raise the machine body, the center float 8 and the side floats 9 and 9 separate from the rice field, and when the operator grips the side clutch lever 25 on the turning side to start turning. At the same time, lever 19
Is pushed downward with the thumb of the hand holding the grip 4a of the handle, the connecting plate 17 is rotated via the rotating arm 22 and the inner wire 23, and the clutch lever 16 is moved to the disengaged position (chain line). The seedling planting work is stopped. When the turning of the airframe is completed in this state, the side clutch lever 25 is released from the grip, the hydraulic lever is operated to raise the traveling wheels 7 and lower the airframe, and the center float 8 and the side floats 9 and 9 are closed. Then, the clutch lever 16 is operated to the engaged position (solid line) to restart the seedling planting work.
At this time, the lever 19 has returned to the original state.

When operating the lever 19 as described above,
The rear end of the lever 19 is L1 from the rear ends of the seedling placing portions 5 and 5a.
Is arranged so that it is located only rearward, and the extension frame 5a
Since the lever 19 is arranged so as to be located behind the rear end by L2 when it is extended to the extension position, the lever 19 is unlikely to be hidden under the seedlings placed on the seedling placing table 5 and the extension frame 5a, and is easy to be hidden. You can operate it.

During the seedling planting operation, the seedling placing section 5,
When the seedlings placed on 5a are exhausted or run out, the main clutch lever is operated to stop the traveling of the aircraft and the seedling planting work, and the spare seedlings stored in the spare seedling placement table 26 are placed on the seedlings. Replenish parts 5, 5a. At this time, since the lever 19 is below the seedling placing portions 5 and 5a,
There is no obstruction during seedling replenishment, and the lever 19 will not be erroneously operated by contacting the seedlings or seedling take-up plate during seedling replenishment.

Further, as shown in FIG. 4, the lever 19 is L3 from the extension line of the lower surface of the seedling placing table 5 in a side view.
It is arranged only below. Therefore, when the seedlings are supplied to the seedling placing portions 5 and 5a in a posture along the seedling placing portions 5 and 5a as described above, the lever 19 may interfere with the seedling supply. Without the need for smooth seedling supply,
In addition, the lever 19 will not be erroneously operated by the contact of the seedling and the seedling removing plate during the seedling supply .

In the present invention, since the clutch lever 16 and the lever 19 are provided separately from each other, their workability is improved and, for example, the handle 4 is used.
Rotate the rear end side around the handle mounting part 4b,
It is also possible to adjust the handle height.

As shown in FIG. 5, the shaft (fulcrum) 21 of the lever 19 is positioned L4 from the rear end of the seedling placing table 5 in a side view.
When the auxiliary seedlings are arranged only on the front side, when the auxiliary seedlings are replenished to the seedling mounting table 5 and the extension frame 5a, muddy water, dust, etc. falling from the auxiliary seedlings are not caught on the shaft 21 (rotating part). The function of the lever 19 is not impaired.

In the present invention, as shown in FIG. 6, the rear end of the lever 19 is provided below the upper surface 4c of the handle 4 in a side view, and the rotating arm 22 and the inner wire 23 are also provided on the handle. By providing the seedlings below the upper surface 4c, even when the seedlings or the seedling removing plate may be temporarily placed on the upper surface of the handle 4 when the preliminary seedlings are supplied to the seedling placing portions 5, 5a, The lever 19 does not get in the way, and the lever 19 is not erroneously operated.

Further, as shown in FIG. 7, the wire 27 connected to the lever 19 is directly connected to the hydraulic device 10, and a valve of the hydraulic device 10 is provided separately from the hydraulic lever provided on the clutch lever portion 13. It may be switched. In this case, the operation of lowering the traveling wheel 7 to raise the machine body and the operation of raising the traveling wheel 7 to lower the machine body at the end of the revolution when the headland is turned at the end of the field are performed by the lever 19. Can be done.

[0023]

According to the first aspect of the present invention, the upper part of the seedling placing portion 5, 5a having a lower front side and a higher rear side can be stably supported from the rear end portion of the main body frame 12, and further, the main body frame. The first planting clutch lever near the rear end of the
Since 16 is provided, the first planting clutch lever 16 can be arranged at a relatively high position where the pilot can easily operate, and the pilot can easily operate the first planting clutch lever 16. Further, since the handle mounting portion 4b is provided at the rear end portion of the main body frame 12, the height can be reasonably adjusted without moving the grip portion 4a of the handle 4 too much. Further, irrespective of the height adjustment of the grip 4a of the handle 4 by rotating the handle 4, the second planting clutch lever is operated by the operator's finger while holding the grip 4a of the handle 4. The rear end portion of -19 can be easily operated in the vertical direction, and the operability is good. Also,
Since the first planting clutch lever 16 is provided on the body frame 12 side, the turning portion of the handle 4 can be reduced in weight, the handle 4 can be easily turned, and the first planting
Installation of the clutch lever 16 becomes easy. Also the second
The rear end of the planting clutch lever 19 is the seedling placing portion 5, 5a.
Because it is disposed below the upper portion, the second planting click
It is rarely the latch lever -19 gets in the way of the seedling supply to seedling unit 5, 5a, it is less the second planting clutch lever -19 from being operated accidentally. And planting
When switching the clutch to the on state,
Push the lever 16 downward to operate it, and
Second planting clutch when switching the switch to the off state
Since it is sufficient to push the lever 19 downward to operate it,
The lever clutches 16 and 19 can be used to turn on and off the attachment clutch.
It can be operated by pushing it in, and the on / off operation of the planting clutch is easy.
become. Further, work for gripping the grip portion 4a of the handle 4.
Pushes the second planting clutch lever 19 downward.
Since the planting clutch can be immediately disengaged by operation,
Just before turning the aircraft headland, disengage the planting clutch.
In addition to narrowing the headland width in the field,
It is safe to immediately disengage the planting clutch.
Also, the second planting clutch lever 19 is operated to rotate downward.
Since it was configured to disengage the planting clutch in the work,
Even if the seedlings to be supplied to the seedling placement parts 5, 5a are
Hit the second planting clutch lever 19 from above and
Two planting clutch lever 19 is planted even if it is operated unexpectedly.
It is safe because the clutch is disengaged. Only
Also with the wire 23 regardless of the rotation of the handle 4.
The operation of the planting clutch lever-19 is the first planting clutch.
It can be reliably transmitted to the lever 16. Also the first
Rotate the planting clutch lever 16 downwards to plant the planting clutch.
When the latch is in the on state, the second planting clutch lever is
Since -19 is configured to return to the original state, planting
Always second planting clutchless when the clutch is of the incoming state
Operate the bar 19 to disengage the planting clutch from the engaged state.
It can be put into a dry condition, and immediately in an emergency
It is safe to cut off the chi.

Further, according to the invention of claim 2, in addition to the effect of the invention of claim 1, the rear end of the second planting clutch lever 19 is replaced by the rear end of the seedling placing portions 5, 5a. The second planting clutch lever 19
Can be easily seen from the control section and the operability is good.

[Brief description of drawings]

FIG. 1 is a side view of a main part of the present invention.

FIG. 2 is a side view of a walk-behind rice transplanter to which the present invention has been applied.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view showing a relational position between a lever and a seedling placing table.

FIG. 5 is a side view of an essential part of another embodiment of the present invention.

FIG. 6 is a side view showing a relational position between a lever and a seedling placing table.

FIG. 7 is a side view of an essential part of another embodiment of the present invention.

[Explanation of symbols]

4 Handle 4a Grip part 4b Handle attachment part 5: Seedling stand 5a Extension frame 12 Body frame 16 First planting clutch lever 19 Second planting clutch lever 23 Inner wire

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Rihe Seike               No. 1, Hakukura, Tobe-cho, Iyo-gun, Ehime Prefecture               Machine Co., Ltd. (72) Inventor Hisashi Kamiya               No. 1, Hakukura, Tobe-cho, Iyo-gun, Ehime Prefecture               Machine Co., Ltd.                (56) Reference JP-A-2-273102 (JP, A)                 JP-A-2-13316 (JP, A)                 Actual Kaihei 2-39926 (JP, U)                 Actual Kaihei 1-63315 (JP, U)                 58-150909 (JP, U)

Claims (2)

(57) [Claims] 1. A rear part of the machine body is provided with seedling placing portions 5, 5a having a front side lower and a rear side higher and a main body frame 12, and a rear end portion of the main body frame 12 is in a vertical direction of the seedling placing portions 5, 5a. Is provided at a position higher than the center of the seedling placing section 5 and 5a and below the seedling placing sections 5 and 5a, and a support member for supporting the upper portion of the seedling placing section 5 and 5a from the rear end of the main body frame 12 is provided. , 5a, the grip portion 4a extends rearward toward the rear side, and the handle 4 is provided with a handle 4 which is more horizontal than the front-back inclination of the main body frame 12 in a side view. Handle mounting portion 4b at the rear end of 12
And a first planting clutch lever 16 on the body frame 12 side near the rear end of the body frame 12.
In the provided handle 4 is rotated adjustably configured the height of the grip portion 4a of the handle 4 around the handle mounting portion 4b, the fingers of the operator's hand gripping the grip portion 4a of the handle 4 An operable second planting clutch lever 19 is provided on the handle 4, and the first planting clutch lever 16 and the first planting clutch lever 19 are provided .
The rear end of each of the two planting clutch levers 19 is moved upward and downward.
With a configuration in which the rotation operation to the direction, the second planting clutch
Ji lever -19 place its rear end at the rear side of the first planting clutch lever -16 below the seedling unit 5,5a upper end, the first planting clutch lever -16 Kaidomisao upward
With the planting clutch disengaged in the work, by rotating downward
Second planting with the planting clutch in the engaged state
By rotating the clutch lever 19 downward, the wire 2
Rotate the first planting clutch lever 16 upward via 3
To disengage the planting clutch and
Rotate the clip lever 16 downward to engage the planting clutch.
When it is in the open state, the second planting clutch lever-19
A walking type seedling planting machine characterized by being configured to return to the above state . 2. The walking type seedling planting machine according to claim 1, wherein a rear end portion of the second planting clutch lever 19 is arranged rearward of a rear end portion of the seedling placing portions 5, 5a.