JPH052973Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a wheel attachment device for a soil improvement machine equipped with a unicycle.

[Conventional technology]

Conventionally, as seen in Japanese Patent Application Laid-Open No. 60-141204 and shown in Fig. 5, a handle 1 was provided on the rear end side.
At the tips of both parallel guide rails 2a and 2b, a grounding frame 3 is provided in a perpendicular direction, and a nozzle is installed in the direction of the grounding frame 3 from the main body A, which is movable along both guide rails 2a and 2b. In the soil improvement machine configured by extending the grounding frame 3 and the guide rails 2a, 2b, the grounding frame 3 and the guide rails 2a, 2b are fixed to the ground G1 and extended in the right angle direction. One wheel 6 was mounted on the tip of the stay 10 to be taken out so that it was spaced apart from the ground G1 by a slight height H, so when moving, the handle 1
When operating the machine to lower it onto the ground G2 while pulling it down as shown by arrow A, the center of gravity of the aircraft moves backward above the wheels 6 with the wheels 6 touching the ground and the tip surface P leaving the ground. This causes the wheels 6 to roll, causing the aircraft to suddenly start forward, resulting in a dangerous situation, making operation difficult, and furthermore, when the operator holds the handle 1 and moves on the ground G2, the entire wheel 6 rolls. Both guide rails 2a,
2b, the center of gravity of the aircraft was raised, resulting in an unstable rolling condition, making it difficult to move and maneuver.

[Problem that the invention attempts to solve]

The present invention solves such drawbacks, and when moving the aircraft from an upright position to the ground, it can be safely and smoothly brought down without having to start suddenly. ,
In addition, when moving, the device can be easily maneuvered in a stable state, and the device can be easily implemented with a simple structure.

[Means for solving problems]

Therefore, in the present invention, the base of a support rod that supports one wheel is pivotally attached to a support shaft mounted near the tips of both guide rails, and the support rod is moved from between both guide rails by a bullet. It is constructed by installing a stopper near the axle that is biased outward and can abut against the guide rail while a portion of the wheel fits between the two guide rails.

[Effect]

Therefore, when holding the handle and tilting the aircraft from an upright position to the ground, the tips of both guide rails contact the ground and rotate as fulcrums.
It can be safely rotated gradually due to the resistance of the bullet, and the fulcrum of rotation is the point P at the tip of both guide rails. Additionally, when the stopper rotates until it collides with the guide rail side, the aircraft will be tilted and only the wheels will touch the ground, and the center of gravity of the aircraft will already be lower to the rear, so the wheels will start suddenly. In this state, both guide rails are lowered to the middle of the wheels, lowering the overall center of gravity and allowing stable maneuvering without the aircraft rolling when moving. .

〔Example〕

Next, the embodiment shown in FIGS. 1 to 4 will be described.

FIG. 1 shows a side view of the soil improvement machine in an upright state, with both handles 1 extending from the rear ends of both long parallel guide rails 2a and 2b, and a stand 11 connected to the rear end. A U-shaped grounding frame 3 is provided in series at the tips of both guide rails 2a, 2b in a perpendicular direction, and both guide rails 2a, 2
Reinforcing plates 12a and 12b are respectively fixed between the tip end side of b and both inner surfaces of the grounding frame 3, and the engine E
A main body A consisting of an air blower and an air blowing device a is equipped so as to be movable along both guide rails 2a and 2b, and a blowhole 4a is provided at the tip of an outer pipe 13 extending from the main body A in the direction of the grounding frame 3. The nozzles 4 are arranged in series, and with the whole body erected so that the grounding frame 3 and the tip surfaces P of both guide rails 2a and 2b are in contact with the ground, as the main body A moves downward, the nozzles 4
It is constructed in the same manner as the conventional structure by being installed so that it can penetrate into the soil and emit fumes into the soil from the fumarole hole 4a.

Both guide rails 2 near the tip surface P
A support shaft 5 is mounted between the tips of a and 2b, and an axle 6a of a wheel 6 is connected to the tip of a support rod 7 extending from a boss 14 rotatably fitted to the support shaft 5. One end 8a of the bullet 8, which is a spring rod fitted to the support shaft 5, is engaged with the upper edge of the reinforcing plate 12b, and the other end 8a is engaged with the upper edge of the reinforcing plate 12b.
b is engaged with the support rod 7, and the bullet 8 is installed so as to press the support rod 7 and the wheel 6 outward from between the guide rails 2a and 2b, and the axle 6
A side-shaped plate body having a stopper 9 and a pedal portion 9a that can abut against the outer surface of one of the guide rails 2b is fixed to the tip of the support rod 7, which is one end side of a. Configure.

Therefore, during work, as shown in FIG. 1, the whole body is kept upright so that the grounding frame 3 and the end surfaces P of both guide rails 2a and 2b are in contact with the ground, and the nozzle 4 is moved by lowering the main body A. The work is carried out by driving the fuel into the soil and emitting fumes into the soil from the fumarole holes 4a. In this state, the wheels 6, which are pressed outward by the ammunition 8, are in contact with the ground.

When the machine is to be laid down on the ground after the work is completed, it is necessary to hold the handle 1 and pull it down in the direction of arrow B. serves as a fulcrum, and both guide rails 2a and 2b rotate in the direction of arrow C, and due to the resistance of the bullet 8, they rotate safely, and the upper part of the wheel 6, which remains in contact with the ground, rotates in the direction of arrow C. When the handle 1 is inserted between the rails 2a and 2b and the side surface of one guide rail 2b abuts against the stopper 9 and both guide rails 2a and 2b are inclined as shown by the imaginary line in FIG. When pushed down, the aircraft will be tilted and only the wheels 6 will be in contact with the ground, and the center of gravity of the aircraft will have already been lowered to the rear, and the wheels 6 will remain stationary without suddenly starting, and the stand 11 will remain in place. If it is grounded, it can be left in place.

Conversely, when working while standing up,
By reversing the above operation, the user can stand up.

When moving the aircraft by holding the handle 1, the upper part of the wheel 8 fits between the guide rails 2a and 2b, lowering the overall center of gravity, as shown in Fig. This allows for stable maneuvering without the aircraft rolling.

[Effect of idea]

In this way, when the aircraft is brought down from a standing position to the ground, the aircraft can be tilted gently and safely due to the resistance of the projectile 8, and the tips of both guide rails 2a and 2b are When the aircraft is away from the ground and only the wheels 6 are in contact with the ground, the upper part of the wheels 6 fits between the guide rails 2a and 2b, lowering the center of gravity of the aircraft, so the wheels 6 remain stationary without suddenly starting. As a result, the aircraft can be tilted down safely, and when moving, the upper part of the wheel 6 is placed on both guide rails 2a, 2.
Since the center of gravity of the whole body is lowered by entering between
Handle 1 without the aircraft rolling.
This means that stable operation can be performed while holding the vehicle, and it has the advantage of being able to be conveniently implemented with a simple structure.

[Brief explanation of the drawing]

Figure 1 is a side view of the entire soil improvement machine that is an embodiment of the present invention, Figure 2 is a sectional view taken along the - line in Figure 1, Figure 3 is a sectional view taken along the - line in Figure 2, and Figure 4. 1 is an explanatory diagram of the operation, and FIG. 5 shows a conventional example. 1...Handle, 2a, 2b...Guide rail, 3...Grounding frame, A...Main body, 4...Nozzle,
5... Support shaft, 6... Wheel, 7... Support rod, 8... Bullet machine, 9... Stopper.

Claims (1)

[Scope of utility model registration request] At the tips of both parallel guide rails 2a and 2b, each of which has a handle 1 connected to the rear end side, a grounding frame 3 in a perpendicular direction is installed. In a soil improvement machine configured by extending a nozzle 4 in the direction of a frame 3, a support rod 7 for supporting one wheel 6 is attached to a support shaft 5 mounted near the tips of both guide rails 2a, 2b. The base is pivotally connected, and the support rod 7 is biased outward from between the guide rails 2a and 2b by a bullet 8, so that a part of the wheel 6 fits between the guide rails 2a and 2b. A wheel mounting device characterized in that a stopper 9 is installed in the vicinity of an axle 6a so that the stopper 9 can abut against the guide rail side when the vehicle is in a fixed state.