JP3244585B2 - Pneumatic soil conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic soil improver, and more particularly to a pneumatic soil improver which blows a fume nozzle having a fume hole at the tip into soil to supply oxygen to trees and crops. It relates to a soil improvement machine.

[0002]

2. Description of the Related Art Such pneumatic soil conditioners include:
An engine, a compressor driven by the engine, an air tank for storing air pressurized by the compressor, and a fume that is provided so as to hang down from a bottom of an air tank that communicates with the air tank via an operation valve. An improved machine main body is composed of a pipe-shaped fumarolic nozzle having a hole and an automatic driving mechanism for blasting the fumarolic nozzle into the soil using the engine as a power source. There is known a pneumatic soil conditioner in which a main body of the improver is mounted on the vertical frame so as to be reciprocated up and down (for example, Japanese Patent Application Laid-Open No. 60-14120).
No. 3).

[0003]

However, in the above-mentioned conventional pneumatic soil conditioner, the operator should lift the handle of the unicycle on which the main body of the improver is mounted, and perform fumarolic work. Push the pneumatic soil conditioner to a location where the handle is further extended until a grounding frame extending perpendicular to the front end of the vertical frame contacts the ground (until the vertical frame is in the upright position). The pneumatic soil conditioner was placed upright on the ground, and the fumarole nozzle was positioned so as to be perpendicular to the ground with the fumarole down. Then, in this state, the tip of the fumarolic nozzle is driven into the ground, and high-pressure air from the air tank is blown out from the fumarole into the soil. As described above, since the relatively heavy pneumatic soil improvement machine had to be erected on the ground at the place where the fumarolic work was performed, the labor burden on the worker was large. However, it is difficult to maintain the stability of the device, and there is a problem in terms of safety.

SUMMARY OF THE INVENTION The present invention has been made in view of such conventional problems, and has as its object to enable safe and efficient operation of fumarole into the soil. An object of the present invention is to provide a pneumatic soil conditioner that can be configured at a low cost and simple, and that can cope with a wide range of pneumatic operations.

[0005]

In order to achieve the above object, a pneumatic soil conditioner according to the present invention comprises an engine compressor, a truck having the engine compressor mounted on an airframe, and a nozzle tip. A soil conditioner main body having a blowing port for blowing compressed air pumped from the engine compressor into the soil, wherein the soil conditioner main body is a rear end of the bogie .
Of a pair of right and left rising frames
On the inside, the swing base is pivotally attached to the front end of the bogie.
Along the left and right sides of the engine compressor
Swinging of the parallel links each extending to the rear end of the carriage
It is characterized by being attached via an end .

As a more preferred specific example of the present invention, a hose reel for winding a pressure hose for feeding compressed air from the engine compressor to a pneumatic working tool can be mounted on the carriage. Alternatively, the carriage may be a two-wheeled vehicle having a pair of left and right wheels.

[0007]

[Operation] In the pneumatic soil conditioner according to the present invention configured as described above, the operator can easily move the pneumatic soil conditioner to a place where fumarolic work is to be performed using a two-wheeled vehicle.
Therefore, the pneumatic soil conditioner is grounded and stopped, and the soil conditioner main body is actuated in that state and the tip of the fumarolic nozzle is driven into the ground, and the compressed air sent from the air compressor is blown into the soil through the fumarole. Spout.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the entire configuration of the pneumatic soil conditioner of the present invention, and FIG. 2 is a side view of the pneumatic soil conditioner shown in FIG. The illustrated pneumatic soil conditioner 1 includes a truck 2 that can be manually pushed and driven by a pair of left and right rubber tire-type wheels 21, 21, and an engine compressor 31, which is mounted on the truck 2 and has a well-known configuration per se. A soil conditioner main body 4 for ejecting compressed air supplied from the engine compressor 31 into the soil, and a pair of left and right parallel links 5 and 5 for attaching the soil conditioner main body 4 to the carriage 2 so as to be vertically movable. Consists of

The carriage 2 includes a pair of left and right vertical frames 22, 22 extending in the front-rear direction, and a horizontal frame 2 laid on the front and rear portions of the left and right vertical frames 22, 22.
Aircraft frame 2 consisting of a frame framed by 3, 23
0, wheel support frames 24, 24 integrally formed by projecting in a U-shape in the horizontal outer direction on both left and right sides of the left and right vertical frames 22, 22, and between the wheel support frame 24 and the vertical frame 23. The axle is mounted on the axle, and the wheels 21 and 21 arranged in the U-shaped frame;
It is composed of

The rear part of the vertical frame 22 (right side in FIG. 2)
Are integrally formed with a pair of left and right rising frames 25, 25 extending diagonally upward and rearward. Handle portions 25a, 25a extending horizontally rearward are formed at the rear of the rising frames 25, 25. To the rear ends of the handle portions 25a, 25a, rubber-made grips 25b, 25b which are gripped when an operator moves the pneumatic soil conditioner are externally fitted and fixed.

Rear ends of the left and right vertical frames 22 (near the connection with the rising frames 25, 25)
An inverted U-shaped parallel link locking frame 26 for locking the parallel link 5 for moving the soil conditioner main body 4 to be described later up and down at the raised position is straddled therebetween. On the other hand, an inverted U-shaped parallel link shaft mounting frame 27 for mounting the front ends of the left and right parallel links 5, 5 is straddled between the front ends of the left and right vertical frames 22, 22. I have.

At the rear ends of the left and right vertical frames 22, left and right support frames 29, 29 are provided with stand portions 29 a, 29 a for hanging the carriage 2, which is a two-wheeled vehicle, on the rear portion. At the lower ends of the stand portions 29a, 29a, ground plates 29b, 29b having a large ground area and also serving as a braking member are attached via a ball joint or the like.

A substantially U-shaped hose reel support frame 28 is formed at the front ends of the vertical frames 22, 22 so as to protrude horizontally forward from the front end, and has a horizontal horizontal portion 28a at the front end. Have been. The horizontal horizontal portion 28a
A support bracket 62 for holding a hose reel 60 for winding a pressure hose 61 for feeding compressed air from the engine compressor 31 to a pneumatic working tool (attachment) such as a pruning scissor or an air gun is provided. Installed. At the tip of the pressure hose 61, a one-touch coupler 61a for detachably connecting the pruning scissors or the like is mounted.

The parallel links 5, 5 are connected to the upper link 5
1, 51 and lower links 52, 52. The left and right parallel links 5, 5 having the same shape on the left and right sides are always parallel to each other at a position slightly separated outward from the left and right side surfaces of the engine compressor 31. It is arranged to be able to swing. That is, the upper and lower links 51,
The front end of 52 is pivotally attached to front end brackets 54a and 54b which are vertically spaced apart from and attached to the vertical portion 27a of the parallel link shaft mounting frame 27. on the other hand,
Rear ends of the upper and lower links 51 and 52 support and fix the soil conditioner main body 4 and a vertical rod portion 56a of an operation handle 56 for vertically moving the soil improver main body 4.
Rear end brackets 57a, 57b vertically mounted at the same distance from the front end brackets 54a, 54b.
Is pivoted to. The parallel link 5 engages a locking pin 51 a provided on the outer surface near the rear end of the upper link 51 with a locking claw 58 provided on the upper portion of the parallel link locking frame 26. By doing so, the rear part can be held at the raised position (shown by the solid line in FIG. 2),
Therefore, the soil conditioner main body 4 can be held at the raised position. The locking claws 58, 58 are provided on the left and right vertical portions 26a, 26a of the parallel link locking frame 26.
The shaft 58b is provided between the brackets 58a and 58a fixed to the upper part of the shaft 58b and urged clockwise in FIG. 2 by urging means such as a torsion spring (not shown). 58b and is integrally rotatably fixed. And
An operating rod 59 is integrally fixed to the center of the shaft 58b. The engagement with the locking pins 51a, 51a is releasable.

As the soil conditioner main body 4, those having a well-known structure can be widely used. The soil conditioner main body 4 in the illustrated example is provided with the engine compressor 31.
Cylindrical air tank 4 for temporarily storing compressed air from
1 is provided at the top, and at the bottom of the air tank 41 is formed a pipe-like member extending vertically downward, and a fuze nozzle 42 having a fumarole 42a slightly drilled upward at the tip thereof is vertically provided. . At the upper end of the air tank 41, there is provided an operation valve 4a which is opened and closed in conjunction with a manual pushing operation. The soil conditioner main body 4 configured as described above is supported and fixed to the vertical rod portion 56a of the operation handle 56 via mounting bands 45a, 45b and the like.

Next, the operation of the embodiment of the present invention configured as described above will be described. The worker holds the grip 2
5b, 25b, and lift it upward, and then manually move the pneumatic soil conditioner 1 to a place where fumarolic work is to be performed. Then, the pneumatic soil conditioner 1 is connected to the stand portions 29a, 29a by grounding plates. It is grounded by 29b, 29b.

Then, when the operation rod 59 is rotated forward to release the engagement between the locking pin 51a and the locking claw 58, the swinging of the parallel links 5, 5 or the body of the soil improvement machine is performed. 4 is allowed to move up and down, and the soil conditioner main body 4 descends to a position where it comes into contact with the ground by its own weight. In this state, when the operating handle 56 is pressed down by hand, the tip of the fumarolic nozzle 42 of the soil conditioner main body 4 follows the swinging motion of the parallel link 5 with the tip hanging down. It is moved to the position shown by the two-dot chain line in FIG. 2 and is driven into the ground. In the illustrated example, the elevation angle of the rear end with respect to the front end mounting position of the parallel links 5 and 5 is equal to the elevation angle at the ascending position and the depression angle at the lowest position, so that the blast nozzle 42 is driven vertically below the ascending position. Subsequently, when the operator presses the operation valve 4a, the compressed air in the air tank 41 is blown out into the soil from a blowing hole 42a provided at the tip of the blowing nozzle 42.

After the end of the fumarolic operation, the operator operates the operating valve 4
a) to release the fumarole and release the operation handle 56.
Is lifted to the position indicated by the solid line in FIG. 2, and the locking pin 51a and the locking claw 58 are locked so that the pneumatic soil conditioner can be moved. On the other hand, the engine compressor 3
When the compressed air of (1) is used for, for example, a pruning operation,
It can be easily implemented by connecting pruning scissors (not shown) to the one-touch coupler 61a provided at the tip of the pressure hose 61. Thus, by freely selecting various pneumatic work attachments and detachably connecting them to the one-touch coupler 61a, the engine compressor 31 can be effectively used even when soil improvement work is not performed, and a wide range of pneumatic It is possible to obtain an economically excellent pneumatic soil conditioner suitable for use work.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various design changes can be made without departing from the present invention described in the appended claims. Is what you can do. For example, by interposing a torsion spring or the like for urging the rear ends of the parallel links 5 and 5 in a pivoting position of the parallel links 5 and 5, the engagement by the locking claws 58 is prevented. When released, it is possible to prevent the soil improvement machine main body 4 from dropping sharply.

Further, in order to further facilitate the driving of the blast nozzle 42 into the soil and adjust the depth of the blast, a foot pedal may be fitted to the blast nozzle 42 so as to be vertically movable. Further, a accessory case may be attached near the installation portion of the hose reel 60, and in this case, for example, the pneumatic working tool such as the pruning scissors or the air gun is transported while being connected to the one-touch coupler 61a. It becomes possible.

[0021]

As will be understood from the above description, according to the present invention, the fumarolic operation into the soil can be performed safely and efficiently, and the whole can be constructed inexpensively and simply. It is possible to cope with a wide range of work using air pressure.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of a pneumatic soil conditioner of the present invention.

FIG. 2 is a side view of the pneumatic soil conditioner shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pneumatic soil improvement machine 2 ... Dolly 4 ... Soil improvement machine main body 5 ... Parallel link 21 ... Wheel 31 ... Engine compressor 42 ... Fume nozzle 42a ... Fume hole 60 ... Hose reel 61 ... Pressure hose

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-103101 (JP, A) JP-A-52-47412 (JP, A) Japanese Utility Model 1983-85902 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) A01B 35/00 A01B 39/16

Claims (3)

(57) [Claims] An engine compressor (31), a truck (2) on which the engine compressor (31) is mounted,
A pneumatic soil improvement apparatus comprising: a soil improvement machine body (4) having a blowing port (42a) formed at a tip end of a blowing nozzle (42) for injecting compressed air pumped from the engine compressor (31) into the soil. Machine (1), wherein the soil conditioner main body (4) moves rearward and upward from a rear end of the bogie (2) .
Of a pair of right and left rising frames (25, 25)
On the inside, the rocking base is attached to the front end of the bogie (2).
Part is pivoted to the left of the engine compressor (31).
Extending to the rear end of the bogie (2) along both right sides
Vita parallel link (5) pneumatic soil improvement machine, characterized in that vertically movably mounted on through the swinging end portion of the. 2. A hose reel (60) for winding a pressure hose (61) for feeding compressed air from the engine compressor (31) to a pneumatic working tool on the carriage (2).
The pneumatic soil conditioner according to claim 1, wherein the pneumatic soil conditioner can be placed. 3. The cart (2) includes a pair of left and right wheels (2).
The pneumatic soil conditioner according to claim 1, comprising a two-wheeled vehicle having (1, 21).