JPS6332401B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a method for blowing air into the soil to easily perform intermediate tillage or deep tillage at the base of trees, etc., as well as for supplying oxygen into the soil. This relates to a fumarole-type soil improvement machine.

[Prior Art] Conventionally, the above-mentioned soil improving machine includes an engine, a compressor driven by the engine, and an air tank that stores air pressurized by the compressor. The inner pipe that communicates through the operating valve is suspended from the bottom of the air tank, the outer pipe is slidably fitted to the inner pipe, and the tip of the outer pipe is driven into the soil, and the operating valve is opened to open the air tank. It is known that the high-pressure air inside is ejected into the soil from a fumarole provided at the tip of the outer pipe.

[Problems to be Solved by the Invention] However, in conventional soil improving machines of this type, when driving the outer pipe into the soil, the operator has to lift the machine body and release this lifting, which requires almost the entire body of the machine to be lifted. Since weight was added to the outer pipe and the tip end of the outer pipe was driven into the soil, this driving operation required a great deal of effort and took a long time. Furthermore, pulling out the outer pipe that has been driven into the soil requires a great deal of labor as the worker has to lift the machine body. Furthermore, there is a drawback in that it requires a great deal of labor to carry the soil conditioner into and out of the place where fumes are generated in the soil.

[Means for Solving the Problems] The present invention uses engine power to strike the outer pipe so that the tip end of the outer pipe can be driven into the soil easily and efficiently. In addition, the outer pipe can be pulled out efficiently and easily using the engine as a drive source, and by driving using drive wheels driven by the power of the engine, it is possible to carry it into and out of the fumarole site with less effort. Therefore, it is an object of the present invention to provide a fumarole-type soil improvement machine that can eliminate the drawbacks of the conventional ones mentioned above.

In order to achieve this object, the present invention includes an engine, a compressor driven by the engine, and an air tank that stores air pressurized by the compressor, and includes an operating valve inside the air tank. An inner pipe that communicates with the air tank is suspended from the bottom of the air tank, and an outer pipe is slidably fitted to the inner pipe. With the tip of the outer pipe driven into the soil, open the operating valve to open the air tank. In a device that blows high-pressure air into the soil from a blowhole provided at the tip of an outer pipe, the entire structure or a portion below the air tank is supported on a frame so as to be movable up and down, and a camshaft to which power is transmitted from the engine. A cam provided at
The entire weight of the part supported so as to be raised and lowered is applied to the frame body, and the outer pipe is struck downward by the rotation of the cam, so that the rotating body, to which power is transmitted from the engine through the clutch, is raised and lowered to the frame body. The outer pipe is supported on a portion that is supported by the rotor, and this portion is raised relative to the frame by the rotation of the rotating body so that the outer pipe is pulled out of the soil and locked at a predetermined height position, and further, the outer pipe is moved to the frame. A drive wheel is attached to the drive wheel, and a means for transmitting power from the engine to the drive wheel is provided on the frame via a clutch mechanism so that it can be connected only when the tip of the outer pipe is at a predetermined height above the soil surface. It is designed to run by driving the wheels.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIG. 1 showing the side view of this embodiment, reference numeral A
is the main body of the soil improvement machine, and this main body A, as shown in FIGS. 1 to 3, includes an engine 1, a compressor 3 driven from the engine 1 via a reducer 2, and 3 and an air tank 5 for storing pressurized air. The engine 1 is
A mixture is created in a carburetor 104 from air taken in from an air cleaner 105 and fuel supplied from a fuel tank 102, which is disposed at the top of the main body A.
By burning this mixture, the drive shaft 10
1 (see FIG. 4) is driven, and exhaust gas after combustion is discharged into the atmosphere via a muffler 103. As shown in FIG. 4, the reducer 2 is
A pinion 202 fitted to the drive shaft 101 of the engine 1 and a gear 20 fitted to the shaft 203
4 are engaged in the case 201, and the drive shaft 1
01 is transmitted to the shaft 203.

As shown in FIG. 2, the compressor 3 is provided directly connected to the reducer 2, a crank/balance weight 301 is fitted to the shaft 203, and a connecting rod 302 is rotatably fitted to this. The connecting rod 302 is connected to a piston (not shown) fitted into the cylinder 303, and the rotation of the shaft 203 is converted into a reciprocating motion of the piston via the connecting rod 302, thereby drawing outside air into the cylinder 303 from the air filter 304. The pressurized air is introduced into the air tank 5 through the joint 305 and the pipe 4. An engine 1 is fixed onto the air tank 5 via a mounting base 6, and a compressor 3 is integrally arranged side by side with the engine 1 via a reduction gear 2.

An inner pipe 8 is connected to the bottom of the air tank 5 via an operating valve 7. As shown in FIGS. 2, 3, and 9, the operation valve 7 has a valve housing 701.
A rotary valve body 702 is rotatably supported within the valve body 702 , and a valve lever 704 is fixed to a portion of a valve shaft 703 that is fixed to the valve body 702 that protrudes outside the valve housing 701 . It is slidably inserted into the elongated hole 705a. arm 70
5 has one end fixed to a pedal shaft 706, and the pedal shaft 706 is attached to the bottom surface of the air tank 5 with a pivot 708.
A pedal 711 serving as an operating valve opening/closing means is fixed to a pedal shaft cylinder 709 which is pivotally connected to the pedal shaft 709 and further fitted onto a pedal shaft 706 and fixed with a pin 710.

One end of a spring 707 is connected to the other end of the arm 705, and the other end of the spring 707 is locked to a locking body 9c provided on a protector 9b of the stroke cylinder 9, which will be described later. The inner pipe 8 is
The flange 8a at the upper end is the valve housing 701 of the operating valve 7.
It is fixed to the lower surface, and an inner pipe body 8b is integrally suspended from the flange 8a. A stroke cylinder 9 is provided on the lower surface of the flange 8a of the inner pipe 8.
The upper end portion is fixed, and a protector 9b is integrally provided at the lower end portion of the cylindrical body 9a.
is provided so as to protrude from the outer periphery of the cylindrical body 9a. In addition, the inner pipe 8 has an outer pipe 1.
The proximal ends of the two are slidably fitted together. In the outer pipe, a proximal end of an outer pipe body 12b is fixed to a receiver 12a housed in a stroke tube 9, and a buffer 10 is interposed between the receiver 12a and the protector 9b. Outer pipe body 1
A nozzle 13 is fitted and fixed to the tip of 2b. The nozzle 13 has a plurality of blowholes 13a opened in its peripheral wall, which communicate with the inside of the outer pipe body 12b, and has a pointed tip so that it can be easily inserted into the soil.

The operation valve 7 is normally closed, and therefore communication between the air tank 5 and the inner pipe 8 is cut off. However, when the pedal 711 is pressed against the tension of the spring 707, the pedal shaft cylinder 709, When the valve body 702 rotates via the pedal shaft 706, the arm 705, the valve lever 704, and the valve shaft 703, the operating valve 7 opens. Therefore, the air tank 5 and the inner pipe 8 are communicated, and the high-pressure air in the air tank 5 is ejected from the blowhole 13a via the inner pipe 8, the outer pipe 12, and the nozzle 13. When the pressure on the pedal 711 is released, the spring 70
The restoring force of 7 causes the valve body 702 to rotate and return to operation valve 7.
is starting to close.

The driving mechanism a shown in FIGS. 2, 5, and 6 is constructed as follows. A drive pulley 17 is fitted and fixed to the end of the shaft 203 of the reduction gear 2 that protrudes from the compressor 3. Further, a bearing cylinder 14 is fixed to the support cylinder 9d of the stroke cylinder 9,
A driven pulley 16 is fitted and fixed to the end of the intermediate shaft 15 which is pivotally supported by the bearing sleeve 14 and protrudes from the bearing sleeve 14 . An endless V-belt 18 is stretched between the drive pulley 17 and the driven pulley 16. In the gearbox portion 14a of the bearing sleeve 14, the intermediate shaft 1
A bevel gear 19 fitted to the support tube 5 is meshed with a bevel gear 20 of a camshaft 21 pivotally supported by the support tube 9d. The end of the camshaft 21 opposite to the side where the bevel gear 20 is fitted projects into the cylinder body 9a of the stroke cylinder 9, and an eccentric cam 21a is provided on this projecting part. This cam 21a is supported on and opposite to the receiver 12a of the outer pipe 12. While the engine 1 is in operation, driving force is always transmitted from the shaft 203 of the reducer 2 to the intermediate shaft 15 via the drive pulley 17, endless V-belt 18, and driven pulley 16, and from this intermediate shaft 15 to the bevel gear. 1
9, 20, the driving force is transmitted to the cam 21a via the camshaft 21, and the cam 21a is rotated.

In FIG. 1, reference numeral B designates a frame body that supports the soil improvement machine main body A in a vertically movable manner, and is constructed as follows. As shown in FIGS. 1, 17 to 19, one end of the frame B has a C-shaped left and right guide rail support column 29 which is connected to the handle by a handle stand 30. As shown in FIGS. This stand 30 has a U-shaped handle portion 30 extending along the pillar 29.
a and a stand portion 30b bent at a right angle from the base end portion of the handle portion 30a are integrally formed. The stand portion 3 is attached to the other end of the support column 29.
A grounding frame 37 protruding in a direction opposite to 0b at right angles to the longitudinal direction of the support column 29 is fixed, and a reinforcing plate 38 is fixed between the other end of the support column 29 and the grounding frame 37. Near the other end of the pillar 29 is a wheel bearing 39.
An axle 40 is rotatably supported by the axle 40.
A driving wheel 41 for traveling is positioned outside the support column 29 and is fitted and fixed thereto.

As shown in FIG. 19, a mounting frame 311 of the elevating plate 31 is removably fixed to a mounting boss 5a provided on the outer surface of the air tank 5 of the main body A with bolts 32. The elevating plate 31 is on the mounting frame 311,
A pair of left and right guide rollers 313 are rotatably attached to the lower end via a roller shaft 312, and these rollers 313 are rotatably guided and supported within the support column 29, and the roller shaft 312
are loosely inserted into the opposing passage openings 29a of the support columns 29.

The outer pipe pulling mechanism b for lifting the main body A relative to the frame body B is constructed as follows.
As shown in FIGS. 6 and 7, the driving mechanism a
A reducer case portion 14b is provided in the gear box portion 14a of the bearing tube 14, and the reducer case portion 14b
A reduction gear 22 is installed inside. The reducer 22 is
The driven pulley 16 is connected to the bevel gear 19 of the intermediate shaft 15.
A wave generator is mounted on the opposite side, a fixed side circular spline is provided on the reducer case part 14b, and a rotating side circular spline is attached to a holding part integral with the output shaft 23, and is fixed to the wave generator. , a flex spline is interposed between the circular spline on both rotating sides. A take-up pulley 24 is rotatably fitted to a portion of the output shaft 23 protruding from the reducer case portion 14b via a sleeve 241, and a dog clutch 25 is fitted to a spline portion 23a formed at the tip of the output shaft 23. A clutch pawl 242 and a clutch pawl 251 are provided on opposing end surfaces of the take-up pulley 24 and the clutch 25 so as to be slidable in the axial direction, and are removable from each other. is inserted.

Note that a recessed engagement surface 242a is formed on the side surface of the clutch pawl 242, and an advanced engagement surface 251a is formed on the side surface of the clutch pawl 251. A mounting seat 14d is formed on the reducer case portion 14b, and an arm rod 271 of the clutch operating mechanism 27 is fixed to the mounting seat 14d with screws 28. An operating pin 273 is installed on the arm lever 271, and The actuating cylinder 275 is rotatably fitted, and the actuating cylinder 275
The proximal end of the shifter 276 is fixed to the
The distal end of the clutch 25 is rotatably engaged with the outer peripheral surface of the clutch 25, and the closing arm 272 and the shutting arm 274 are each fixed to the actuating cylinder 275 so as to form a substantially V-shape. An operating rod 712 protruding from the pedal shaft 706 is arranged on the arm 272 so as to be able to come into contact with it (see FIG. 9).
The blocking arm 274 is arranged so as to be able to abut against the abutting body 36 fixed to the support 29 of the frame body B (see FIG. 1).

As shown in Figures 1 and 10, one of the pillars 2
A locking tool 34 is fixed to the upper end of the belt 35, and the other end of the belt 35, which is a hanging tool with one end locked to the locking tool 34, is formed on a part of the outer peripheral surface of the take-up pulley 24. The belt 35 is fixed to the recess, and the main body A is suspended from the frame B by the belt 35 via the take-up pulley 24, and the belt 35 is wound around the take-up pulley 24 in a spiral shape.

The fall prevention mechanism 33 shown in FIGS. 1 and 11 to 13 is constructed as follows. Post 29
A cylindrical shaft 333 is rotatably supported by a support 331 fixed to the upper part of the cylinder via a support pin 334 installed thereon, and a weight receiver 335 is fixed to the cylindrical shaft 333. The weight receiving tool 335 has a tip extending loosely through a window hole 29b opened in the support 29 and protrudes into the support 29, and a lower side is formed with an oblique side 335b so as to allow the guide roller 313 to rise but prevent it from descending.
It is formed in the shape of a right triangle with an upper side as a weight receiving part 335a, and a regulating part 335c for regulating the rotation of the weight receiving tool 335 itself is provided so as to be able to come into contact with the outer surface of the support column 29. A lever body 332a of a drop prevention lever 332 having a grip 332b is fixed to the weight receiver 335, and an annular portion of a spring 336 is fitted to the cylindrical shaft 333, so that the spring 33
The central protrusion of the spring 336 is engaged with the outer surface of the weight receiver 335, and the other end of the spring 336 is engaged with the outer surface of the support column 29.

The transmission means c and clutch mechanism d shown in FIGS. 1, 6, and 14 to 16 are constructed as follows. In the transmission means c, a sprocket assembly 43 in which two sprockets 43a and 43b are integrated with a support shaft 42 is rotatably attached to the column 29, and one sprocket 43b of this assembly 43 is fitted to the axle 40. An endless chain 45 is hung between the sprocket 44 and the fixed sprocket.
In the clutch mechanism d, a rotating body 47 which is an integral part of a gear 47a and a sprocket 47b is attached to one end of an arm 46 rotatably supported by a support shaft 42.
8, the other sprocket 43a of the sprocket assembly 43 and the rotating body 4
7 sprocket 47b and another endless chain 49
A gear 50 that removably meshes with the gear 47a of the rotating body 47 is fitted and fixed to the end of the output shaft 23.

Further, an operating lever 51 is fixed to the other end of the arm 46 , one end of a spring 52 fitted to the boss portion 46 a of the arm 46 is locked to the arm 46 , and the other end of the spring 52 is fixed to the support 29 . guide 53
The guide 53 is engaged with the lever body 51a of the operating lever 51 to release the gears 47a and 50. A recess 53a is formed to maintain the state.

In addition, in the clutch mechanism d, when the main body A is held on the frame body B by the fall prevention mechanism 33 and the tip of the outer pipe 12 is at a predetermined height position above the soil surface, the gear 47a at one end of the arm 46 is connected to the output shaft. The support 29 is attached so that it can mesh with the gear 50 on the 23 side.
It is provided at a predetermined height position. When the clutch mechanism d is closed, the gear 47a and the gear 50 are engaged, and the output shaft 23, the gear 50, and the gear 47 are engaged.
a, sprocket 47b, endless chain 49, sprocket 43a, sprocket 43b, endless chain 45, sprocket 44, axle 40,
When the power of the engine 1 is transmitted to the drive wheels 41 and the gear 47a and the gear 50 are disengaged through the arm 46 by turning the control lever 51, the power is transmitted even if the output shaft 23 is rotating. The clutch mechanism d is shut off so that the transmission means c is not activated.

Next, the use of the fumarole type soil improvement machine of this embodiment will be explained.

First, as shown in FIG.
is tilted and the drive wheels 41 are brought into contact with the ground. In this state, the clutch mechanism d is engaged and the transmission means c
is operated to transmit power to the driving wheels 41, and while holding the handle 30a of the stand 30 which also serves as a handle and steering the machine, the fume-type soil improvement machine is carried to the place where fume-generating is to be performed. In this case, since the drive wheels 41 are driven by the power of the engine 1, the carrying-in work can be done easily with less effort than when the soil improver is pushed manually or lifted.

After the clutch mechanism d is shut off at the place where fumes are to be produced, the grounding frame 37 is grounded and the frame B is stood upright on the soil. In this state, the fall prevention mechanism 33
The upper guide roller 313 is supported by the weight receiving part 335a of the weight receiving tool 335 provided in the main body A (see FIG. 12), and the lower end of the nozzle 13 of the outer pipe 12 is located almost above the lower end of the grounding frame 37. is held by frame B and does not fall. Also, the take-up pulley 24
The belt 35 is wound in a spiral manner, and the clutch 25 is held in a disconnected state in which the clutch pawls 242 and 251 are disengaged. In this state, when the fall prevention lever 332 is rotated against the spring 336 and the support of the guide roller 313 by the weight receiving part 335a of the weight receiving tool 335 is released, the main body A is slightly moved against the frame body B due to its own weight. As the lower end of the nozzle 13 touches the ground, the weight of the main body A acts on the outer pipe 12, and due to the sliding action with the inner pipe 8,
Receiver 12a provided at the upper end of the outer pipe 12
contacts the cam 21a, and the entire weight of the main body A is applied to the receiving body 12a of the outer pipe 12 via the cam 21a. At the same time, since the cam 21a is eccentric, the receiving body 12a is struck by the pressing force due to the rotation of the cam 21a. At this time, as described above, the entire weight of the main body A is transferred to the receiver 12 via the cam 21a.
Due to the relationship acting on the cam 21a, the striking action by the cam 21a is performed under the weight of the entire weight of the main body A, and the outer pipe 12 is efficiently driven into the soil while the main body A is lowered by this striking action.

Note that during this driving, since the clutch 25 is in the disconnected state, no driving force is transmitted from the intermediate shaft 15 to the take-up pulley 24, and the belt 35 is let out from the take-up pulley 24 with almost no resistance. While moving, the main body A descends relative to the frame B.

As described above, the outer pipe 12 is connected to the main body A.
After being driven to the required depth to reach the lower limit D of
The pedal 711 is pressed to open the operating valve 7, and the high pressure air in the air tank 5 is jetted into the soil from the blow hole 13a of the nozzle 13 provided at the tip of the outer pipe 12. The operation rod 712 rotates together with the rotation of the pedal shaft 706 due to the pressure of the pedal 711, so that the operation rod 712 rotates the loading arm 27.
2 is pressed, the cylinder shaft 275 rotates and the shifter 276
rotates, the clutch 25 moves toward the take-up pulley 24 against the spring 26, and the clutch pawls 251 and 242 engage. Therefore, the driving force of the engine 1 is transmitted to the take-up pulley 24 via the intermediate shaft 15, the reducer 22, the output shaft 23, and the clutch 25, and the belt 35 is wound around the take-up pulley 24. The main body A starts to rise relative to the frame B.

As the main body A rises, the receiving body 12a is supported by the stroke cylinder 9 via the buffer body 10, and the outer pipe 12 driven into the soil is pulled out. At this time, since the main body A is guided by the guide rollers 313 by the pillars 29, the posture when rising is controlled, and the outer pipe 12 is pulled out vertically. Also, as the belt 35 is wound around the take-up pulley 24, the diameter increases, so the main body A is slow at the beginning of its rise;
As it rises, it gradually rises faster and can be raised in a short time, and because the rising speed at the initial stage of pulling out, which requires the greatest force to pull out the outer pipe, is slow, it reduces the burden on the engine 1 and the drive power transmission system. Less is.

Then, when the outer pipe 12 is pulled out from the soil, the upper guide roller 313 pulls the weight receiving part 335a of the weight receiving device 335 from below against the spring 336 while the main body A rises above the stop position S. reach above it. Note that the pressure on the pedal 711 should be released in a timely manner after the ejection, and the operation valve 7 should be released.
Close. When the main body A rises to the lifting limit L, due to the collision between the collision body 36 and the blocking arm 274,
The clutch 25 is moved in a direction away from the take-up pulley 24 via the shifter 276, and the clutch pawl 25 is moved away from the take-up pulley 24.
1 and 242 are disengaged, and the clutch is placed in the disconnected state. As a result, driving force is no longer transmitted from the engine 1 to the take-up pulley 24, and the lifting operation is stopped. In this state, the main body A tries to fall due to gravity, but the weight receiving part 335a of the weight receiving tool 335 protrudes again due to the restoring force of the spring 336, preventing the main body A from falling, and the main body A is at the stopping position. S
is held in In this state, the clutch mechanism d can be engaged. Then, by operating the operating lever 51, the clutch mechanism d is engaged, the frame B is collapsed, and the driving wheels 41 are driven in the same manner as when carrying in the machine as described above, to carry out the fume type soil improvement machine from the place where the fume is emitted.

In the present invention, a hanging device such as a wire rope or a chain may be used in place of the belt 35, and a rotating body such as a sprocket may be used in place of the take-up pulley, and this may be meshed with a rack or the like. The rotating body, rack, etc. may be provided on one and the other of the frame B and the main body A. moreover,
In the present invention, the engine and the compressor may be fixed to the frame, and the inner pipe, outer pipe, and other portions below the air tank may be supported on the frame so as to be movable up and down.

[Effects of the Invention] As explained above, the blower type soil improvement machine of the present invention uses the weight of the part supported by the frame so that it can be raised and lowered, as well as the rotation of the cam using the power of the engine to move the outer pipe into the soil. I decided to type it in, so
This work can be easily and automatically done in a short time with little effort, and by the rotation of the rotating body driven by the engine, the part supported in the frame so that it can be raised and lowered can be moved against the frame. The outer pipe that has been driven into the soil is pulled out by lifting it up.
Since the outer pipe is locked at a predetermined height, this work can be done easily and safely with less effort.Furthermore, when the tip of the outer pipe is at a predetermined height, the engine power can be used to lock the outer pipe into the frame. Since the drive wheel is driven, the soil improver can be easily carried into and out of the fumarole area, and even if the clutch mechanism of the drive wheel is operated by mistake while driving the outer pipe, the soil improver will not fall over. , will not damage the outer pipe,
There is an effect.

[Brief explanation of the drawing]

Fig. 1 is a side view of one side of a fumarole-type soil improvement machine according to an embodiment of the present invention, Fig. 2 is a side view of the other side of the same upper part, and Fig. 3 is a cross-sectional view taken along line A--I of Fig. 1. , Fig. 4 is a sectional view taken along the Ro-Ro line in Fig. 2, Fig. 5 is a sectional view taken along the Ha-Ha line in Fig. 3, and Fig. 6 is a sectional view taken along the Ni-Ni line in Fig. 5. Figure 7 shows the hole in Figure 6.
Figure 8 is a cross-sectional view taken along the line H in Figure 7, Figure 9 is a cross-sectional view taken along the Thoth line in Figure 2, Figure 10 is the installation of both ends of the band. 11 is a sectional view taken along the Chi-Chi line in FIG. 1, FIG. 12 is a sectional view taken along the Lili line in FIG. 11, and FIG. 14 is a sectional view along the rule line of FIG. 1;
Figure 15 is a side view of the part shown in Figure 14;
The figure is a rear view of the part shown in Fig. 14, Fig. 17 is a sectional view taken along the O-O line in Fig. 1, and Fig. 18 is a rear view of the part shown in Fig. 14.
FIG. 19 is an enlarged cross-sectional view of the main part of the figure, and FIG. 19 is a partial cross-sectional view taken along the W-Wa line in FIG. A... Soil improvement machine main body, B... Frame body, a... Driving mechanism, b... Outer pipe pulling mechanism, c...
...Transmission means, d...Clutch mechanism, 1...Engine, 101...Drive shaft, 102...Fuel tank,
103...muffler, 104...carburizer, 105...
...Air cleaner, 2...Reduction gear, 201...Case, 202...Pinion, 203...Shaft,
204...Gear, 3...Compressor, 301...Crank and balance weight, 302...Conrod, 303...Cylinder, 304...Air filter, 305...Joint, 4...Pipe, 5...Air tank, 5a ...Mounting boss, 6...Mounting stand, 7...
...Operation valve, 701...Valve housing, 702...Valve body, 7
03... Valve stem, 704... Valve lever, 705...
Arm, 705a... Long hole, 706... Pedal shaft, 707... Spring, 708... Pivot, 709
... Pedal shaft cylinder, 710 ... Pin, 711 ... Pedal, 712 ... Operating rod, 8 ... Inner pipe,
8a...Flange, 8b...Inner pipe body, 9
...Stroke tube, 9a...Cylinder body, 9b...Protector, 9c...Locking body, 9d...Support tube, 10
...Buffer body, 12...Outer pipe, 12a...
Receiving body, 12b... Outer pipe body, 13... Nozzle, 13a... Fumarole hole, 14... Bearing tube, 14
a...Gearbox part, 14b...Reducer case, 15...Intermediate shaft, 16...Driven pulley, 17
... Drive pulley, 18 ... Endless V-belt, 19,
20...Bevel gear, 21...Camshaft, 21a...
Cam, 22...Reducer, 23...Output shaft, 23a
... Spline part, 24 ... Take-up pulley, 241
... Sleeve, 242 ... Clutch pawl, 242a
... Recessed angle-shaped interlocking surface, 25 ... Dog clutch, 2
51...Clutch pawl, 251a...Advanced engagement surface, 26...Spring, 27...Clutch operation mechanism,
271... Arm bar, 272... Insertion arm, 27
3... Operating pin, 274... Shutoff arm, 27
5... Operating cylinder, 276... Shifter, 28... Screw, 29... Guide rail double use support, 29a...
Passageway opening, 29b...Window hole, 30...Handle double-use stand, 30a...Handle part, 30b...Stand part, 31...Elevating body, 311...Mounting frame,
312...Roller shaft, 313...Guide roller,
32...Bolt, 33...Fall prevention mechanism, 331
... Support, 332 ... Fall prevention lever, 332
a...Lever body, 332b...Grip, 333
... Cylinder shaft, 334 ... Support pin, 335 ... Weight receiver, 335a ... Weight receiver, 335b ... Oblique side portion,
335c...Regulation part, 336...Spring, 3
4... Locking tool, 35... Belt (hanging tool), 36
... Collision body, 37 ... Grounding frame, 38 ... Reinforcement plate,
39...Axle bearing, 40...Axle, 41...Drive wheel, 42...Support shaft, 43...Sprocket assembly, 43a, 43b...Sprocket, 44...
Sprocket, 45... Endless chain, 46... Arm, 46a... Boss portion, 47... Rotating body, 47
a...Gear, 47b...Sprocket, 48...
Shaft, 49... Endless chain, 50... Gear, 51...
...Operation lever, 51a...Lever body, 52...Spring, 53...Guide, 53a...Recess.

Claims (1)

[Scope of Claims] 1. An inner tube that has an engine, a compressor driven by the engine, and an air tank that stores air pressurized by the compressor, and that communicates with the inside of the air tank via an operating valve. The pipe is suspended from the bottom of the air tank, the outer pipe is slidably fitted to the inner pipe, and the tip of the outer pipe is driven into the soil, and the control valve is opened to allow high-pressure air in the air tank to flow through the outer pipe. In a device that ejects air into the soil from a fumarole hole provided at the tip of the air tank, the entire structure or a portion below the air tank is supported on a frame so as to be movable up and down, and a cam is installed on a camshaft through which power is transmitted from the engine. The engine is arranged opposite to the upper part of the outer pipe so that it can be supported, and through the outer pipe, the entire weight of the part that is supported so as to be able to rise and fall is applied to the frame body, and the outer pipe is struck downward by the rotation of the cam. A rotary body, to which power is transmitted via a clutch, is supported by a part that is movably supported by a frame body, and this part is raised relative to the frame body by the rotation of the rotary body, and the outer pipe is pulled out from the soil. Further, a drive wheel for running is mounted on the frame body, and a means for transmitting power from the engine to the drive wheel is installed so that the tip of the outer pipe is at a predetermined height above the soil surface. 1. A fumarole-type soil improvement machine, characterized in that it is mounted on a frame body via a clutch mechanism that can be connected only when the machine is in the position of the machine, and is made to travel by driving drive wheels.