JPH068657Y2 - Single-wheeled paddy work machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention enables the lifting and lowering operation of the float to be prevented at the end of the work, and the wheels and the float support the airframe to the ground.
A walkable paddy work machine that is self-supporting despite being a single wheel type,
Specifically, it is equipped with a float that can be moved up and down on the left and right sides of the machine body, and a lock device that can prevent the float from moving up and down. Based on the operation of an operating tool provided on the lock device, the float can be prevented from moving up and down. The present invention relates to a one-wheel walk type paddy work machine configured to switch between a first state in which it is activated and a second state in which it is permitted.

[Conventional technology]

Conventionally, in the above-mentioned one-wheeled paddy field working machine, the operation tool of the lock device is provided near the float.

[Problems to be solved by the invention]

For this reason, it is easy to forget to switch the operating device of the lock device to the release side, that is, the second state at the start of work in the paddy field, and the operator should operate the operating device in a posture in which the operating handle is securely held. It is difficult, and when the operation tool is switched from the second state to the first state, or after switching from the first state to the second state, the posture of the one-wheeled paddy work machine tends to be unstable. , There was a safety issue.

[Means for solving problems]

The characteristic configuration of the present invention for solving the above-mentioned problem is, in the above-mentioned single-wheeled paddy field working machine, projecting near a foot position that obstructs the walking posture of the operator in the first state,
In the second state, the interlocking member that retreats from near the foot position is integrally fixed to the operation tool, and the following actions and effects can be obtained from this configuration.

[Action]

That is, in the first state in which the float is locked, the interlocking member is located near the feet of the operator, which impedes walking while maneuvering. Therefore, the operator surely recognizes that the float is locked. it can.

Further, since the interlocking member is integrally connected to the operation tool, and moreover, it exits and retreats near the feet of the operator, the attitude that the operator holds the steering handle securely, that is, the attitude that the aircraft does not easily fall down. Thus, the interlocking member can be operated with the foot to switch the operation tool.

[Effect of the Invention] Never forget to switch the lock device.

It is safe to hold the steering handle securely and switch the lock device in a posture that makes it difficult for the aircraft to tip over.

〔Example〕

As shown in Fig. 2, the engine (1) and the mission case (2) are installed in the front part of the fuselage, and the transmission that doubles as the fuselage frame is transmitted from both sides of the mission case (2) toward the rear of the fuselage. Extend the case (3), (3), this transmission case (3),
Attach the planting case (4) to the extension end of (3), and
A seedling planting device (8) equipped with a planting mechanism (5), a seedling stand (6), and a pair of left and right sensor floats (7) and (7) is provided in (4), and the planting case (4) At the rear ends of the support frames (12), (12) extending rearward from the rear end of the steering handle (9),
The wheel case (11), which substantially supports one propulsion wheel (10), is pivotally supported in a vertically swingable manner with respect to the machine body that supports (9) (9). One of the two-row, one-wheel walking paddy working machine is configured.

As shown in FIG. 1 and FIG. 3, the sensor float (7) pivotally supports the rear bracket (7B) on the longitudinal intermediate portion of the swing arm (13) extending from the support frame (12). , The rear extension end of the swing arm (13) is vertically supported via a bracket (12a) whose mounting position is adjustable.
2), the front bracket (7A) and the transmission case (3) are connected via the hip break link mechanism (14), and the rear bracket
With the pivotal fulcrum of (7B) as a fulcrum, the hip bending link mechanism (14) can be vertically swung by bending and stretching.

The waist bending link mechanism (14) includes a pair of groove-shaped members (14A) and (14B) each having a U-shaped cross section, the front bracket (7A) and the transmission case (3) with the groove side facing the rear of the fuselage. ) And pivotally connected to
Both groove-shaped members (14A), (14B) the free end side opposite side portions are overlapped with each other and connected via a pivot pin (14c),
The maximum swing range of the float (7) is regulated by contact between the intermediate side portions of the both groove type members (14A), (14B).

Next, the lock device (15) of the float (7) will be described.For each of the support frames (12) and (12) connecting and supporting the steering handles (9) and (9), as an example of an operation tool. Pivot the rocking levers (16), (16) toward the rear of the machine,
To the front side beyond the pivot shaft (16A) of this swing lever (16),
The rocking member (17) is integrally connected, and one end of the inner wire (19A) of the release wire (19) is connected to the rocking member (17), and the other end of the inner wire (19A) is bent at the waist.
When the pivot pin (14c) of (14) is connected via the spring (20) and the swing lever (16) is held in the downward swing position, the pivot pin (14c) is pulled to the rear side of the machine. The float (7) swings to the maximum lowered position, and at this position, the float (7) is switched to the first state in which the lifting operation of the float (7) is blocked, and the swing lever (16)
Is held in the upper swing position, the pivot pin (14c) can be moved in the front-rear direction, and the lock device (15) is configured to switch to the second state in which the lifting operation of the float (7) is allowed. .

As shown in FIG. 4, the left and right support frames (12), (1
The rocking levers (16), (16) pivotally supported on 2) are integrally connected to each other via the interlocking member (22), and both rocking levers (16), (16)
Is switched to the first state, the interlocking member (22)
Protrudes near the foot position, which obstructs the walking posture of the operator,
When the vehicle is switched to the second state, it is swung upward and forward from the vicinity of the foot position and is retired to a position where it does not hinder the operation of the operator.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a unicycle walking type paddy working machine according to the present invention. Fig. 1 is an enlarged side view of an essential part, Fig. 2 is an overall side view, Fig. 3 is an enlarged perspective view of an essential part, and Fig. 4 is It is the whole top view. (7) …… Float, (15) …… Lock device, (16) …… Operating tool, (22) …… Interlocking member.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroyoshi Fujiki, 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Iron Works Co., Ltd.Sakai Works (72) Kazuo Shimasumi, 64, Ishizukita-machi, Sakai City, Osaka Kubota Iron Works Co., Ltd. Company Sakai Factory

Claims (1)

[Scope of utility model registration request] 1. A float which can be moved up and down and is located on the left and right sides of the body.
(7), (7), and a lock device (15) capable of blocking the lifting operation of the float (7), (7), operation of the operating tool (16) provided in the lock device (15) In the single-wheeled paddy work machine configured to switch between the first state in which the lifting operation of the floats (7) and (7) is stopped and the second state in which the floats (7) are allowed based on the A single-wheeled walker, characterized in that an interlocking member (22) projecting near a foot position that obstructs a person's walking posture and retreating from near the foot position in the second state is integrally fixed to the operation tool (16). Type paddy work machine.