TWI572552B - Thin air jack - Google Patents

Description

Thin air jack

The present invention is, for example, raised by the necessity of raising a weight of an automobile or the like for repairing or inspecting, or a building that collapses due to an earthquake, a typhoon, an accident, or the like, and is pressed against The thin air jack rescued by the following people is particularly good in terms of safety, and even for extremely narrow spaces, it is possible to insert and lift the weight of the car, etc., and the system can also A thin air jack that is excellent in ease of use and operability in supplying air to a pump or a compressor of a bicycle.

In general, in a jack for lifting a weight of a car or the like, a hydraulic jack or a mechanical jack is used from the prior art.

In any case, these jacks have the following problems: that is, the height is high when retracted, and cannot be inserted into a narrow space, and the weight is heavy, and in terms of ease of use For the difference.

Therefore, an air jack device having a bag structure for solving the above problems has been developed, and is disclosed as Japanese Patent Laid-Open No. 2000-247587. (Reference 1) is disclosed.

That is, the air jack device 20 described above is provided with a rectangular rubber tube 21 and a rectangular shape by a nylon woven fabric or a amide woven fabric as shown in FIGS. 12 to 14 . The outer body 22 for accommodating the rubber tube 21, and the air joint 23 for supplying air to the rubber tube 21, the opposite sides of the rubber tube 21 and the outer body 22 are respectively provided by the metal plate 24 and the screws 25 and the snails. The cap 26 is held by the cap 26, and the other side of the rubber tube 21 and the outer body 22 facing each other are folded inward in a V shape.

Further, between the rubber tube 21 and the outer body 22 and on the surface of the outer body 22, two sets of metal reinforcing plates 27 are disposed so as to surround the outer body 22, respectively. The two sets of metal reinforcing plates 27 are joined by rivets 28.

Further, a rubber plate 29 is fixed to each of the metal reinforcing plates 27 on the surface side of the outer peripheral body 22, and the rubber plate 29 on the upper side of the rubber plate 29 is formed with a car body. The lower frame 30 enters the groove 31.

Further, after the air jack device 20 is placed under the weight to be lifted, the compressed air is injected into the rubber tube 21 by the air joint 23, and the rubber tube 21 is expanded and accompanied Thus, the outer body 22 also expands, and the weight can be lifted up.

In the air jack device 20, since the rubber tube 21 and the outer body 22 made of woven fabric are used, the outer shape of the outer shape can be thinned, and the weight can be inserted into a narrow space. lift.

However, in the air jack device 20, since the rubber tube 21 is housed in the woven fabric outer body 22, the frictional resistance between the outer body 22 and the rubber tube 21 becomes extremely large, when the outer body 22 is When the rubber tube 21 is inflated and the rubber tube 21 is inflated, the rubber tube 21 does not expand uniformly, and a large load is applied to the rubber tube 21 partially, and the rubber tube 21 is broken. Oh, and there is a problem of poor security.

Further, in the air jack device 20, when the rubber tube 21 is inflated, the compressed air is excessively poured into the rubber tube 21, and in the worst case, the rubber tube 21 is broken.

Further, in the air jack device 20, both ends of the rubber tube 21 and the outer body 22 are held by the metal plate 24, and a metal reinforcing plate 27 is attached to the central surface side of the outer body 22 and Since the rubber sheet 29 is not extremely thinned, the minimum thickness is about 6 cm. As a result, it is impossible to insert between extremely narrow spaces, and there is a problem that it cannot be used.

Further, in the air jack device 20, since the rubber tube 21 must be inflated, it is difficult to expand the rubber tube 21 by, for example, a manual bicycle, and it is necessary to use an air compressor in use. There is a problem of being inconvenient in use and operability.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2000-247587

The present invention has been made in view of such a problem, and an object thereof is to provide an excellent safety, and even for extremely narrow spaces, it is possible to insert and lift a weight of a car or the like. In addition, it is also a thin air jack that is excellent in ease of use and operability by supplying air by a bicycle, a compressor, or the like.

In order to achieve the above object, a first aspect of the present invention provides a thin air jack, which is characterized in that: an airtight body is formed in a bag shape formed of a film by a film; and an air supply pipe is provided. The base end portion is inserted into the airtight body in an airtight manner, and a check valve connecting device connected to the air supply source is disposed at the front end portion; and the valve mounting tube is configured to make the base end portion The airtight body is inserted in a gastight manner, and a safety valve is provided at the front end portion; and the covering body is formed into a bag shape by a synthetic resin material having a small frictional resistance, and the airtightness is formed The body is accommodated in a state in which the front end portions of the air supply pipe and the valve mounting pipe are respectively protruded outward; and the inner body is formed by a woven fabric made of synthetic fibers. The airtight body and the covering body are accommodated in a state in which the air supply pipe and the valve mounting pipe are respectively protruded outward toward the outer side; and the cylindrical outer casing is to be fired. a cylindrical outer casing formed by a tube having the same structure as a inner and outer surface, or a cylindrical outer casing to which a cylindrical fabric is applied, the outer casing is made of the gas The dense body, the covering body, and the inner body are accommodated in a state in which at least the front end portion of the check valve connecting device and the safety valve protrude from the one end portion of the outer casing toward the outer side, and both ends are provided In the closed state, the system is formed into a flat bag shape.

According to a second aspect of the present invention, there is provided a thin air jack comprising: a gas-tight body formed in a bag shape formed of a film by a film; and an air supply pipe for a base end portion It is inserted into the airtight body in a gastight manner, and a branch joint is provided at the front end portion; and a check valve connecting device and a safety valve are respectively connected to the above-mentioned branch joint and are supplied to the air supply source. And the cover body is formed into a bag shape by a synthetic resin material having a small frictional resistance, and the airtight body is housed in a state in which the end portion of the air supply pipe protrudes outward; And the inner body is formed into a bag shape by a woven fabric made of synthetic fibers, and the airtight body and the covering body are housed in such a state that the front end portion of the air supply pipe protrudes outward; and The tubular outer casing is a cylindrical outer casing formed by turning a tube having the same structure as the fire-fighting pipe, or a cylindrical outer casing for applying a coating to the cylindrical fabric. The body, the aforementioned outer body, the gas The dense body, the covering body and the inner body to at least make the back valve connecting device and the front end portion of the safety valve from the outside One end of the package is housed in a state of being protruded toward the outside, and is formed into a flat bag shape in a state where both end portions are closed.

According to a third aspect of the present invention, in the first aspect of the invention, the gas-tight body is formed by a multilayer film or a single-layer film having excellent gas barrier properties. a rectangular bag shape of a sealing structure, and a tube mounting cylinder portion having an inclined posture in which a base end portion of the air supply pipe and the valve mounting pipe are respectively inserted at two opposite sides, and the air supply pipe And the valve mounting tube is such that the base end portions thereof are respectively inserted into the tube mounting cylinder portions of the airtight body, and a part or all of the outer circumferential surface of the tube mounting cylinder portion is airtight by the locking means The ground is locked and prevented from being pulled out.

According to a fourth aspect of the present invention, in the second aspect of the invention, the gas-tight body is formed by a multilayer film or a single-layer film having excellent gas barrier properties. a rectangular bag shape having a sealed structure, and a pipe mounting tubular portion having an inclined posture for inserting a base end portion of the air supply pipe at one side, and the air supply pipe is a base end portion thereof A part or all of the outer peripheral surface of the tube-mounted tubular portion is inserted into the tube-mounted tubular portion of the airtight body, and is locked in an airtight manner by the locking means to be prevented from being pulled out.

According to a fifth aspect of the present invention, in the third aspect or the fourth aspect of the invention, the multilayer film is a nylon multilayer film, and the single layer film is made hot. Plastic polyurethane film.

According to a third aspect of the present invention, in the third aspect of the invention, the pipe fitting portion, the air supply pipe, and the base end portion of the valve mounting pipe of the airtight body are provided. On the inner side of the airtight body, and the air supply pipe and the front end of the valve mounting pipe are located outside the airtight body.

According to a seventh aspect of the present invention, in the fourth aspect of the invention, the tube-attached tubular portion of the airtight body and the base end portion of the air supply tube are located in the airtight body. The inner side, and the front end of the air supply pipe, is positioned outside the airtight body.

According to a third aspect of the present invention, in the third aspect or the fourth aspect of the present invention, the airtight body is not provided with the tube-mounted tubular portion The sides are folded toward the inside.

According to a ninth aspect of the present invention, in the third aspect of the invention, the air supply tube and the valve mounting tube are inserted into the tube-mounted tubular portion of the airtight body, respectively Set to a few cm or more.

According to a tenth aspect of the present invention, in the fourth aspect of the invention, the insertion length of the tube-attached tubular portion of the air supply tube to the airtight body is set to be several cm or more. .

According to a third aspect of the present invention, in the third aspect of the invention, the outer circumferential surface of the air supply tube and the valve mounting tube and the inner circumference of the tube mounting tube portion of the airtight body are provided. There is an adhesive layer interposed between the faces.

According to a fourth aspect of the invention, in the fourth aspect of the invention, the outer circumferential surface of the base end portion of the air supply pipe and the inner circumferential surface of the pipe attachment cylindrical portion of the airtight body are provided. There is an adhesive layer in each of the mediations.

According to a thirteenth aspect of the present invention, in the first aspect or the second aspect of the present invention, the present invention is characterized in that a part or all of the both sides of the peripheral portion of the airtight body are attached Tape or cloth or a sheet made of resin sheet.

According to a fourteenth aspect of the present invention, in the first aspect or the second aspect of the present invention, the check valve connecting device is provided as a one-touch joint type. It is equipped with a check valve coupler.

According to a fifteenth aspect of the invention, the first aspect of the invention is characterized in that the covering body is formed to be open at least on one side by a synthetic resin tube or a synthetic resin sheet. In the shape of a rectangular bag, and at the side adjacent to the open side, a lead-out hole is formed which leads the air supply pipe and the front end side of the valve mounting pipe toward the outside.

According to a sixteenth aspect of the present invention, in the second aspect of the invention, the covering body is formed by at least one side by a synthetic resin tube or a synthetic resin sheet. A rectangular bag shape and a lead-out hole leading to the front end side of the air supply pipe toward the outside is formed at the side adjacent to the open side.

A seventeenth invention of the present invention is the first invention or the According to a second aspect of the invention, the inner body is formed of a belt-like woven fabric made of synthetic fibers, and the both ends of the belt-shaped woven fabric are overlapped and overlapped. The airtight body and the covering body are housed inside the inner body and the both ends of the airtight body are held by the inner surface of the inner body.

According to a ninth aspect of the present invention, in the first aspect of the invention, the outer casing is formed by weaving a horizontal yarn made of synthetic fibers and a cross yarn made of synthetic fibers. a tube having the same structure as the fire-fighting tube in which the inner layer of the thermoplastic polyurethane elastic lining is formed on the inner surface of the cylindrical outer casing, or a painter is applied to the cylindrical fabric, By opening at least the check valve connecting device and the front end portion of the safety valve from the base end portion of the outer casing and protruding toward the outer side, the end portions of the fire-fighting pipe or the cylindrical fabric are opened by At least one of the buckle, the fuse, and the seam is closed and formed into a flat bag shape.

According to a ninth aspect of the present invention, in the second aspect of the invention, the outer casing is formed by weaving a horizontal yarn made of synthetic fibers and a cross yarn made of synthetic fibers. a tube having the same structure as the fire-fighting tube in which the inner layer of the thermoplastic polyurethane elastic lining is formed on the inner surface of the cylindrical outer casing, or a painter is applied to the cylindrical fabric, By opening at least the check valve connecting device and the front end portion of the safety valve from the base end portion of the outer casing and protruding toward the outer side, the end portions of the fire-fighting pipe or the cylindrical fabric are opened by At least one of the buckle, the fuse, and the seam is closed and formed into a flat Flat bag shape.

According to a twentieth aspect of the present invention, in the first aspect or the second aspect of the present invention, the air supply pipe is a part of the air supply pipe and a part of the outer casing, by a metal ring The riveting process was fixed.

The thin air jack of the present invention accommodates a bag-like airtight body formed by a film in a bag-like covering formed of a synthetic resin material, and further accommodates the synthetic fibers in this order. The inner body of the system and the outer structure of the same structure as the fire-fighting pipe or the tubular outer casing to which the cylindrical fabric is applied, and therefore, the covering body, the airtight body and the inner body The frictional resistance between them is greatly reduced. As a result, when the airtight body is expanded in a state where a load is applied to the thin air jack, the airtight system is uniformly expanded without being airtight. When the load is partially applied, the rupture of the airtight body can be prevented, and it is excellent in safety.

Since the thin air jack of the present invention is installed at the airtight body, the valve installation pipe provided with the safety valve is installed, so that even when the airtight body is inflated, the compressed air is excessively poured into the airtight body, Excess compressed air is discharged from the safety valve, so that there is no case where the airtight body is broken, and it is more excellent in safety.

The thin air jack of the present invention is formed by a multilayer film or a single layer film in which the gas-tight body is excellent in gas barrier property. Therefore, the airtightness of the airtight body is extremely excellent, and since it is used in the outer casing, the pipe having the same structure as the fire protection pipe is turned inside or outside, or the application is applied to the cylindrical fabric. Since there is a painter, the durability and crack resistance of the exterior body are greatly improved, and there is no possibility that the air leaks or the outer body is broken during use, and the safety is superior. .

Since the thin air jack of the present invention is composed of a bag-shaped airtight body, a bag-shaped covering body, a bag-shaped inner body, and a cylindrical outer casing, when these are flattened, In addition, it is possible to thin the thickness as much as possible, and as a result, it is possible to insert even a very narrow space, and it is possible to lift the weight of an automobile or the like.

The thin air jack of the present invention is formed at a side of the opposite side of the airtight body formed into a rectangular bag shape, and a tube mounting cylinder portion for inserting the air supply pipe and the base end portion of the valve mounting pipe, respectively, is formed. And inserting the air supply tube and the base end portion of the valve mounting tube at each tube mounting tube portion and inserting a part of the outer peripheral surface of each tube mounting tube portion or all by locking means to prevent air The supply pipe and the valve mounting pipe are pulled out, and therefore, the strength of the airtight body can be maintained as compared with the case where the air supply pipe and the valve mounting pipe are inserted into the hole at the airtight body, and the air is maintained. The supply pipe and the valve mounting pipe are difficult to be pulled out from the airtight body, and the airtightness between the pipe mounting cylinder portion and the air supply pipe and the valve mounting pipe is also improved, and the air system becomes difficult to be obtained from the airtight body. And leaked out.

The thin air jack of the present invention is attached to the gas A check valve connecting device is disposed at a front end portion of the air supply pipe for the dense body supply air, and the check valve connecting device is set as a quick joint type check valve coupler, thereby changing the medium pipe, It is also possible to supply air by means of a manual bicycle or a compressor or a pedal-type pump, which is excellent in ease of use and operability.

In the thin air jack of the present invention, since each of the tube mounting portions of the air supply pipe and the valve end portion of the valve mounting pipe is mounted on the inner side of the airtight body, each tube is expanded when the airtight body is expanded. The mounting cylinder portion is not subjected to an external force, and it is possible to prevent the tube mounting portion of the airtight body from being broken.

In the thin air jack of the present invention, since the two sides of the airtight body which are not provided with the pipe mounting portion are respectively folded toward the inner side, even if the airtight body expands, the two sides are not excessively excessive. In the case of stretching, it is possible to prevent the both ends of the sealing body (the two sides of the tube-mounted tubular portion from being broken) from being broken.

In the thin air jack of the present invention, when the airtight body is expanded, a part of the air supply pipe and the valve mounting pipe is strongly pushed toward the inner peripheral side of the outer casing by the internal pressure of the airtight body. Since the air supply pipe is difficult to be pulled out from the airtight body, it is not necessary to have a necessary strength or higher in the mechanism for preventing the air supply pipe from being pulled out.

In the thin air jack of the present invention, since the insertion length of the air supply pipe and the valve mounting pipe to the pipe fitting portion of the airtight body is set to several cm or more, the air supply pipe and the valve mounting pipe system are more difficult. Pull out from the airtight body.

The thin air jack of the present invention has an adhesive layer interposed between the outer peripheral surface of the air supply pipe and the valve mounting pipe and the inner peripheral surface of the pipe fitting cylindrical portion of the airtight body, and therefore the air supply pipe and the air supply pipe The valve mounting pipe system is more difficult to pull out from the airtight body, and the airtightness between the pipe mounting cylinder portion and the air supply pipe and the valve mounting pipe is further improved, and the air system becomes more difficult to leak from the airtight body.

Since the thin air jack of the present invention is attached to a part or all of both sides of the peripheral portion of the airtight body, a reinforcing sheet made of tape or cloth or a resin sheet is attached, and therefore, the peripheral portion of the airtight body is provided. Some or all of them are reinforced, and even if compressed air is injected into the airtight body, the peripheral portion of the airtight body becomes difficult to be broken.

In the thin air jack of the present invention, since the interior system is made of a belt-like woven fabric made of synthetic fibers, both ends of the belt-shaped woven fabric are re-bonded and the overlapping portions thereof are sewn or succeeded, and The airtight body and the covering body are accommodated inside the inner body, and the inner surfaces of the inner body are held by the inner surface of the inner body. Therefore, when the airtight body is expanded, the gas is used. Both ends of the dense body are held by the inner body, so that both ends of the airtight body are hard to be broken.

In the thin air jack of the present invention, since the tube having the same structure as the fire protection tube is used for the outer surface of the outer casing, or the painter is applied to the cylindrical fabric, the outer body is The wear resistance and the weather resistance are improved, and the strength of the exterior body can be improved.

The thin air jack of the present invention is provided for supplying air One part of the pipe and one part of the outer casing are fixed by the riveting process by the metal ring, so that the air supply pipe system becomes more difficult to pull out.

The thin air jack of the present invention is installed at a front end portion of the air supply pipe which is one of the airtight portions at the base end portion, and is installed with a divergent joint of two strands, and a branch joint of the two strands Since the check valve connecting device and the safety valve are attached to each other, the valve mounting pipe can be omitted, and the assembly work of the thin air jack can be simplified and the assembly time can be shortened. Moreover, since the thin air jack is provided with a check valve connecting device, a safety valve, an air supply pipe, and a branch joint in a state of being on the long side of one of the outer casings, the exterior is mounted. The long side portion of the other body has a thickness of only the airtight body, the covering body, the inner body, and the outer body. Therefore, it can be inserted even in an extremely narrow space.

1‧‧‧Thin air jack

2‧‧‧Airtight body

2a‧‧‧Airtight tube installation tube

2b‧‧‧The fusion of airtight bodies

3‧‧‧With check valve connection

4‧‧‧Air supply pipe

4a, 4b‧‧‧ connection tube

5‧‧‧Safety valve

6‧‧‧ valve mounting tube

7‧‧‧ Coverage

7a‧‧‧Outlet hole for cover

8‧‧‧ Built-in body

8a‧‧‧The inner body is sewn

9‧‧‧Outer body

9a‧‧‧ Ultrasonic fusion of the outer body

10‧‧‧Reinforcement

11‧‧‧ silk

12‧‧‧Hose nipples

13‧‧‧Metal ring

14‧‧‧ buckle (buttonhole)

15‧‧‧ center mark

16‧‧‧Warning signs

17‧‧‧Different joints

Fig. 1 is a plan view showing a thin air jack according to an embodiment of the present invention.

[Fig. 2] is an exploded perspective view of a thin air jack.

[Fig. 3] is an explanatory view showing an installation state of the air supply pipe and the valve mounting pipe for the airtight body, and (a) is a plan view of the airtight body before the air supply pipe and the valve mounting pipe are installed, (b) is an air supply pipe and a valve mounting pipe installed at the pipe mounting portion of the airtight body (c) is a plan view showing a state in which the opening of the airtight body is fused, and (d) is a plan view showing a state in which both end portions of the airtight body are folded toward the inside.

Fig. 4 is a plan view showing an airtight body in which an air supply pipe and a valve mounting pipe are mounted.

FIG. 5 is an enlarged cross-sectional view taken along line A-A of FIG. 4. FIG.

Fig. 6 is a plan view showing a state in which an airtight body is housed in a covering body.

Fig. 7 is a plan view showing a state in which an airtight body and a covering body are housed in the inner casing.

FIG. 8 is a plan view showing a state in which the airtight body, the covering body, and the inner body are housed in the outer casing, and both ends of the outer casing are closed.

Fig. 9 is an enlarged cross-sectional view showing an air supply pipe and a valve mounting pipe portion in a state in which a thin air jack is expanded.

Fig. 10 is a plan view showing a thin air jack according to another embodiment of the present invention.

Fig. 11 is a plan view showing a state in which an air supply pipe to which a branch joint, a check valve connecting device, and a safety valve are attached is attached to the airtight body.

Fig. 12 is a perspective view of a prior art air jack device.

Fig. 13 is an enlarged cross-sectional view taken along line B-B of Fig. 12.

Fig. 14 is an enlarged cross-sectional view taken along line C-C of Fig. 12.

Hereinafter, according to an embodiment of the present invention, according to the drawing Give a detailed description. 1 and 2 show a thin air jack 1 according to an embodiment of the present invention, which is intended to be used for repairing and inspecting a car of a general automobile or a special automobile. The car is lifted up or lifted by a person who has been lifted by a building or the like that has collapsed due to an earthquake or a typhoon, and is rescued by a person who is pressed underneath.

In other words, the thin air jack 1 is provided with a gas-tight body 2 in the form of a rectangular bag formed into a sealed structure by a film, and an air supply pipe 4 in which the base end portion is airtight. Inserted into the airtight body 2, and provided at the front end portion with a check valve connecting device 3 connected to the air supply source; and a valve mounting tube 6 for inserting the base end portion in a gastight manner The airtight body 2 is disposed at the front end portion, and the safety valve 5 is disposed at the front end portion; and the covering body 7 is formed into a rectangular bag shape by a synthetic resin material having a small frictional resistance, and the airtight body is formed 2, the front end portions of the air supply pipe 4 and the valve mounting pipe 6 are respectively protruded toward the outside, and the inner body 8 is formed into a rectangular bag shape by a woven fabric made of synthetic fibers. And the airtight body 2 and the covering body 7 are accommodated in a state in which the front ends of the air supply pipe 4 and the valve mounting pipe 6 are respectively protruded outward; and the cylindrical outer casing 9 is a tube-like outer casing 9 formed by a tube having the same structure as a fire-fighting tube, or a pair of outer casings A tubular outer casing 9 is applied to the cylindrical fabric having strength, and the outer casing 9 is such that the airtight body 2, the covering body 7, and the inner body 8 are at least attached. The valve connecting piece 3 and the front end portion of the safety valve 5 are protruded from one end portion of the outer casing 9 toward the outer side. It is housed and formed into a flat bag shape in a state where both end portions are closed.

In the airtight body 2, as shown in FIG. 3(a), two film materials which are formed into a rectangular shape by a multilayer film or a single film having excellent gas barrier properties are overlapped with each other, and The outer peripheral edge portion of two film materials other than the short side of the two film materials is melted 2b in a wide range of several mm (hot fusion or ultrasonic fusion or high frequency) In this way, a rectangular bag shape is formed, and a tube having an inclined posture in which the base end portions of the air supply tube 4 and the valve mounting tube 6 are respectively inserted is provided at a relatively long side thereof. The tubular portion 2a. The two tube-mounted tubular portions 2a are positioned inside the airtight body, and the inside and the outside of the airtight body 2 are connected to each other.

Here, the multilayer film or single-layer film excellent in gas barrier properties means a multilayer film or a single layer having an oxygen permeability of 40 cc/m ² ‧ atm ‧ days and a moisture permeability of 8 g/m ² ‧ days or less film.

The airtight body 2 is inserted into each of the tube mounting cylinder portions of the airtight body 2 at the base end portions of the air supply pipe 4 and the valve mounting pipe 6, as shown in Figs. 3(b) and (c). After being installed in a gas-tight manner in 2a, the side (short side) of the opening of the airtight body 2 is fused 2b (hot-melting or ultrasonic fusion or high-frequency fusion) and It is closed, whereby a rectangular bag shape of a sealed structure is formed.

Moreover, the sides (short sides) of the air supply pipe 4 and the valve mounting pipe 6 are not attached to the airtight body 2, and are generally airtight as shown in FIG. 3(d) and FIG. V inside the body 2 The shape (the portion on the inner side of the gas-tight body 2 is V-shaped in cross-sectional shape) is folded inward, and even if the gas-tight body 2 is expanded, the two sides (short sides) are not formed. Will be stretched barely. Thereby, it is possible to prevent the both end portions of the airtight body 2 (the two sides of the tube mounting cylinder portion 2a from being broken) from being broken. Further, although not shown, the two sides (short sides) of the airtight body 2 may be W-shaped toward the inner side of the airtight body 2 (the position of the airtight body 2 is inside) Some of them are in the shape of a cross-sectional shape W-shaped) and are folded inward.

Further, at the outer surfaces of the both end portions on the short side of the airtight body 2, and at the outer ends of the long sides of the airtight body 2 which are opposed to the air supply pipe 4 and the valve mounting pipe 6, As shown in FIG. 2 and FIG. 4, a reinforcing sheet 10 made of a duct tape is attached, and a part of the outer peripheral portion of the airtight body 2 is reinforced.

In this embodiment, a three-layer film having excellent gas barrier properties and flexibility is used in the gas-tight body 2, that is, TRIPLE NYLON (trade name) manufactured by MICS Chemical Co., Ltd. is used. The airtight body 2 is formed by fusing two thin film materials in a pulse shape by fusing the film 2b. The TRIPLE NYLON has a thickness of 70 μm, a tensile strength of 45 MPa, a tensile elongation of 350%, a tear strength of 140 N/mm, an impact strength of 140 N‧ cm, a spur strength of 5.0 N, and an oxygen permeability of 40 cc. /m ² ‧atm‧day, moisture permeability is 8g/m ² ‧day

Moreover, in this embodiment, the length of the airtight body 2 is It is set to about 56 cm, and the width of the airtight body 2 is set to about 28 cm, and the width of the fusion portion of the airtight body 2 is set to 5 mm, and the tubes of the airtight body 2 are attached to the tubular portion 2a. The lengths are set to be about 5 cm to 10 cm, respectively.

Further, in the above-described embodiment, the airtight body 2 is formed by a three-layer film. However, in other embodiments, the thermoplastic polyurethane film or the polylactic acid film, PET, PEN, or the like may be used. A single-layer film such as a polyester film of PBT or the like, a barrier resin film such as EVOH, PVA or a barrier Ny, or the like, or a four-layer film (for example, DIAMIRON M-G708) (product name)), a five-layer film (for example, FILLMICS HB (trade name) or FIVE BARRIER (trade name)) or the like to form the airtight body 2.

Further, in the above-described embodiment, the reinforcing sheet 10 is attached to a part of both sides of the peripheral portion of the airtight body 2, but in other embodiments, it may be configured to be airtight. The reinforcing sheet 10 is attached to the entire surface of both sides of the outer peripheral portion of the body 2.

Further, in the above-described embodiment, the reinforcing sheet 10 made of a universal tape is attached to the airtight body 2, but in other embodiments, it may be configured to be attached to the airtight body 2. The aluminum tape or the cloth adhesive tape or the reinforcing sheet 10 made of the adhesive tape may be configured to cover the reinforcing sheet 10 or the synthetic resin reinforcing sheet 10 at the airtight body 2 by double-sided Adhesive tape or an adhesive is attached.

The air supply pipe 4 is formed by a pressure tube made of a special polyurethane resin, and the base end portion thereof is inserted into the airtight body 2 One of the tubes is installed in the tubular portion 2a, and a part or all of the outer peripheral surface of the tube-mounted tubular portion 2a is locked by a locking means to prevent being pulled out, and at the front end of the air supply tube 4 The portion is provided with a check valve connecting device 3 connected to an air supply source (not shown).

In this embodiment, the yarn 11 (polyester yarn) is used as the locking means. That is, the base end portion of the air supply pipe 4 is inserted into the pipe fitting cylinder portion 2a of one of the outer sides of the airtight body 2 as shown in Fig. 3(b), and The wire 11 (polyester yarn) is tightly wound and coated with an adhesive agent at a portion (or all) of the outer peripheral surface of the tube mounting cylindrical portion 2a located inside the airtight body 2 to prevent extraction.

Further, between the outer peripheral surface of the base end portion of the air supply pipe 4 and the inner peripheral surface of the pipe attaching tubular portion 2a of the airtight body 2, an adhesive layer (not shown) is interposed, and the base end portion of the air supply pipe 4 is interposed. The airtightness between the outer peripheral surface of the base end portion of the air supply pipe 4 and the inner peripheral surface of the pipe attaching tubular portion 2a of the airtight body 2 is not maintained, and is not pulled out from the pipe mounting portion 2a.

Furthermore, the air supply pipe 4 is inserted into the pipe attachment tubular portion 2a so that the insertion length of the pipe attachment tubular portion 2a to the airtight body 2 is several cm or more, and preferably 3 cm or more. It is set to such an extent that the air supply pipe 4 is hard to be pulled out from the airtight body 2.

In this embodiment, the insertion length of the air supply tube 4 to the tube mounting cylinder portion 2a is set to be slightly the same length as the length of the tube mounting cylinder portion 2a.

The check valve connecting rod 3 disposed at the front end of the air supply pipe 4 is formed by a check valve coupler having a socket type and a quick joint type, and is capable of being Quickly joined to a pump or compressor that is a bicycle air supply source or a pedal-type pump (none of which is shown).

Further, in the above-described embodiment, the check valve connecting device 3 is configured to be in the socket type and is a quick-connect type check valve coupler. However, in other embodiments, The check valve connector 3 can be set to be a plug type and is a quick-connect type check valve coupler.

The valve mounting tube 6 is formed by a pressure tube made of a special polyurethane resin, and the base end portion thereof is inserted into the other tube mounting tube portion 2a of the airtight body 2, and is locked by Means to lock a part or all of the outer peripheral surface of the pipe mounting cylinder portion 2a to prevent being pulled out, and at the end portion of the valve mounting pipe 6, pass the safety valve 5 through the hose nipple (Hose nipple 12 is mounted by riveting processing by a metal ring 13 (aluminum ring).

In this embodiment, the yarn 11 (polyester yarn) is used as the locking means. That is, the base end portion of the valve mounting tube 6 is inserted into the other tube mounting cylinder portion 2a from the outer side of the airtight body 2 as shown in Fig. 3(b), and The wire 11 (polyester yarn) is tightly wound and coated with an adhesive agent at a portion (or all) of the outer peripheral surface of the tube mounting cylindrical portion 2a located inside the airtight body 2 to prevent extraction.

Further, between the outer peripheral surface of the proximal end portion of the valve mounting tube 6 and the inner peripheral surface of the tube-mounted tubular portion 2a of the airtight body 2, an adhesive layer (not shown) is interposed, and the base end portion of the valve mounting tube 6 is interposed. The airtightness between the outer peripheral surface of the base end portion of the valve mounting tube 6 and the inner peripheral surface of the tube mounting cylinder portion 2a of the airtight body 2 is not maintained, and is not pulled out from the tube mounting portion 2a.

In addition, the valve mounting tube 6 is inserted into the tube mounting tube portion 2a so that the insertion length of the tube mounting tube portion 2a for the airtight body 2 is several cm or more, and preferably 3 cm or more. It is set to such an extent that the valve mounting pipe 6 is difficult to be pulled out from the airtight body 2.

In this embodiment, the insertion length of the valve mounting tube 6 to the tube mounting cylinder portion 2a is set to be slightly the same length as the length of the tube mounting cylinder portion 2a.

The safety valve 5 provided at the front end of the valve installation pipe 6 is caused by an excessive supply of air, which causes the pressure in the airtight body 2 to become a maximum use pressure (0.7 MPa) and 0.1 MPa higher. The air in the airtight body 2 is automatically leaked out and the pressure in the airtight body 2 is returned to a specific pressure, so that the crack of the airtight body 2 can be prevented. The set pressure of the relief valve 5 is 0.8 MPa.

Further, in the above-described embodiment, the locking means is configured to use the wire 11, and the wire 11 is tightly wound around the outer peripheral surface of each of the tube mounting cylinder portions 2a of the airtight body 2 to prevent the air supply pipe. 4 and the valve mounting tube 6 is pulled out from each of the tube mounting cylinder portions 2a. However, in other embodiments, a metal ring may be used as the locking means (omitted The figure is either a heat shrinkable tube (not shown). In other words, each of the tube mounting cylinder portions 2a into which the air supply tube 4 and the valve mounting tube 6 are inserted may be caulked by a metal ring (not shown) to prevent the air supply tube 4 and The valve mounting tube 6 is pulled out from each of the tube mounting cylinder portions 2a, or each of the tube mounting cylinder portions 2a into which the air supply tube 4 and the valve mounting tube 6 are inserted may be configured by a heat shrinkable tube (omitted) As shown in the figure, the air supply tube 4 and the valve mounting tube 6 are prevented from being pulled out from the respective tube mounting cylinder portions 2a.

The cover body 7 is formed into a rectangular bag shape in which one end or both ends are opened by a synthetic resin tube (polyethylene tube) having a small frictional resistance as shown in FIG. 2 and FIG. At the side (long side) adjacent to the open side (short side), a lead-out hole 7a that leads the air supply pipe 4 and the front end portion of the valve mounting pipe 6 to the outside is formed. The covering body 7 is formed to be able to completely accommodate the airtight body 2.

Here, the synthetic resin having a small frictional resistance means a synthetic resin having a static friction coefficient of 0.1 to 0.3 and a dynamic friction coefficient of 0.04 to 0.3.

Further, in the above-described embodiment, the covering body 7 is formed of a polyethylene pipe. However, in other embodiments, the covering body 7 may be formed into a bag shape by a polyethylene sheet. Alternatively, the cover 7 may be formed of a synthetic resin tube having a low frictional resistance such as a fluororesin or a synthetic resin sheet. For example, the cover 7 can also be formed by a sheet of Teflon.

The aforementioned inner body 8 is as shown in FIG. 2 and FIG. Generally, it is made of a belt-like woven fabric of phthalamide fibers which is excellent in strength and abrasion resistance and has little stretchability, and is formed by overlapping both ends of the belt-shaped woven fabric and sewing the overlapping portion. 8a is formed in a ring shape and has a planar shape in a rectangular shape.

Further, in the inner body 8, the airtight body 2 and the covering body 7 are housed, and both end portions of the airtight body 2 are held by the inner surface of the folded portion at both ends of the inner body 8.

Further, both sides of the both end portions in the longitudinal direction of the inner body 8 are such that the airtight body 2 and the covering body 7 that are accommodated are not escaping from the side of the inner body 8 to the outside. To set the appropriate length of the seam 8b.

Further, in the above-described embodiment, the inner body 8 is formed of a woven fabric made of guanamine fiber. However, in another embodiment, the inner body 8 may be made of polyester. Woven fabrics made of woven fabrics made of polypropylene fibers, woven fabrics of vinylon fibers, woven fabrics of LCP fibers (ZXION), woven fabrics of polyarylate fibers (VECTRON), and woven fabrics of PBO fibers (ZYLON) A woven fabric of ultra high molecular weight polyethylene fiber (DYNEEMA) or the like is formed.

Further, in the above-described embodiment, the inner body 8 is formed by providing the belt 8a with the slit 8a. However, in other embodiments, the belt-shaped woven fabric may be followed by The agent is then applied to form the inner body 8.

The outer casing 9 is generally as shown in Figs. 1, 2, and 8, and is made of a longitudinal fiber and a synthetic fiber made of synthetic fibers. The horizontal wire is formed by a tube having the same structure as the fire-fighting tube in which the inner liner of the thermoplastic outer polyurethane layer is formed on the inner circumferential surface of the tubular outer casing, and the inner liner layer is oriented outward. The tube was used inside and outside. In this pipe, the structure, the strength of the synthetic resin, the adhesion strength, the function, the wear resistance, and the like are used in the form of a test suitable for fire-fighting pipes (formal tests conducted by the Japan Fire Control Association).

Further, in the longitudinal yarn and the horizontal yarn of the synthetic fiber, a polyester filament yarn or a melamine filament yarn or the like is used.

Further, the exterior body 9 is such that the front end portion of the air supply pipe 4, the check valve connecting device 3, and the safety valve 5 are opened from one end of the exterior body 9 and protrude outward. The body 2, the covering body 7 and the inner body 8 are formed into a flat bag shape by opening the ends of the plurality of fasteners 14 (buttonholes) and ultrasonic fuses 9a. The size of the airtight body 2, the covering body 7, and the inner body 8 can be accommodated. Further, since the package 9 is formed with an inner liner of a thermoplastic polyurethane elastomer at the outer surface side thereof, it has the following advantages: that is, it is excellent in abrasion resistance, and The mechanical strength is high, and it is elastic under a wide range of use temperatures. Further, the impact strength is strong and resistant to low temperature bending, and is resistant to oil, chemical, and bacterial. For the good.

Further, on the surface of one of the exterior bodies 9, a ring-shaped center mark 15 representing the center position of the thin air jack 1 and a warning sign 16 indicating the precautions of the thin air jack 1 and the like are provided.

Further, in the above-described embodiment, the inner liner layer is formed of a thermoplastic polyurethane elastomer. However, in other embodiments, the inner liner layer may be made of another synthetic resin, for example, It is formed of PET (polyethylene terephthalate).

Further, in the above-described embodiment, the outer casing 9 is configured such that the tube having the same structure as the fire protection tube is turned inside out. However, in other embodiments, the configuration may be configured as At the outer casing 9, a painter is applied to the cylindrical fabric having strength. For example, as the cylindrical fabric having strength, a cylindrical fabric made of polyester canvas is used, and in the coating, a urethane resin, an acrylic resin, an anthracene resin, a fluororesin or the like is used.

Further, in the above-described embodiment, the both ends of the exterior body 9 are closed by the fastener 14 and the welding 9a. However, in other embodiments, although not shown, However, the both ends of the exterior body 9 may be closed by the fasteners 14 and sewn (instead of the fusion 9a of FIG. 1), or the outer casing 9 may be configured. Both ends are closed only by welding 9a or by sewing.

Next, a description will be given of a method of manufacturing the thin air jack 1.

First, the base end portions of the air supply pipe 4 and the valve mounting pipe 6 are respectively inserted into the respective tube mounting cylinder portions 2a of the airtight body 2 in which one of the short sides is opened, and are positioned at the airtight body 2 Each of the inner tubes is attached to a part of the outer peripheral surface of the cylindrical portion 2a to wind the wire 11 tightly and apply an adhesive (refer to Figs. 3(a) and 3(b)). at this time, The adhesive layer is interposed between the outer circumferential surface of the air supply tube 4 and the valve mounting tube and the inner circumferential surface of each of the tube mounting cylinder portions 2a. Thereby, the air supply pipe 4 and the valve mounting pipe 6 are attached to the pipe attachment cylindrical portion 2a of the airtight body 2 in an airtight manner.

When the air supply pipe 4 and the valve mounting pipe 6 are respectively attached to the respective pipe mounting cylinder portions 2a of the airtight body 2, the short side of one of the openings of the airtight body 2 is fused 2b, and The gas-tight body 2 is sealed (refer to Fig. 3(c)).

When the airtight body 2 is formed into a sealing structure, both end portions on the short side of the airtight body 2 are folded inward, and the outer ends of the short sides of the airtight body 2 are combined with each other. The air supply pipe 4 and the valve mounting pipe 6 are opposed to each other and are outside the both end portions of the long side of the airtight body 2, and a reinforcing sheet 10 made of duct tape is attached (refer to FIG. 3 (d) ) and Figure 4).

When the reinforcing sheet 10 is attached to the airtight body 2, the airtight body 2 is housed in the covering body 7, and the air supply pipe 4 and the front end portion of the valve mounting pipe 6 are respectively led out from the covering body 7 respectively. The hole 7a is led out to the outside of the cover 7 (refer to Fig. 6).

When the airtight body 2 is housed in the covering body 7, the airtight body 2 and the covering body 7 are housed in the inner body 8, and the front end portions of the air supply pipe 4 and the valve mounting pipe 6 are respectively led out. The outer side of the body 8 (refer to Figure 7).

Finally, the inner body 8 in which the airtight body 2 and the covering body 7 are housed is housed in the cylindrical outer casing 9, and the air supply pipe 4 is placed. The front end portion and the check valve connecting rod 3 and the safety valve 5 provided at the front end portion of the valve mounting tube 6 are opened from one end portion of the outer casing 9 and protrude outward, and both ends of the outer casing 9 are A plurality of fasteners 14 (buttonholes) and fuses 9a are closed, and a portion of the air supply tube 4 and a portion of the outer casing 9 are fixed by riveting processing by the metal ring 13 (refer to FIG. 8). ).

The thin air jack 1 thus manufactured is formed to have a length of about 60 cm, a width of about 24 cm, and a thickness of about 6 mm (excluding the air supply pipe 4, the valve mounting pipe 6, the check valve connecting device 3, and the safety valve). 5) The size is increased and the weight can be lifted up to a maximum of 9400 kg.

Moreover, the pressure type of the thin air jack 1 is 2.1 MPa, the use temperature range is -20 ° C to 80 ° C, and the mass system is 1170 g per 1 meter.

Further, the method of manufacturing the thin air jack 1 is not limited to the above embodiment, and various modifications can be made.

Next, a case where the weight, for example, the stacker is lifted, will be described using the thin air jack 1.

First, the two sheets are placed at a certain interval to be placed on the ground, and a metal plate is placed thereon, and a stacker is placed on the metal plate. Next, the thin air jack 1 is inserted into the space between the floor and the metal plate, and the air supply pipe 4 is led out from the aforementioned space to the outside. Thereafter, a check valve connecting device 3 is provided at the front end of the air supply pipe 4, and is supplied to the air supply source via the medium pipe (the bicycle is hit The gas cylinder or the compressor or the pedal pump is connected, and the air supply source is operated to gradually inject the compressed air into the airtight body 2. As a result, the airtight body 2 expands, and along with this, the outer casing 9 is also inflated, and the stacker can be lifted up.

The above-mentioned thin air jack 1 can exert the following general excellent effects.

(1) The thin air jack 1 is housed in a bag-like covering body 7 formed of a synthetic resin material having a small frictional resistance by a bag-like airtight body 2 formed of a film. The frictional resistance between the airtight body 2 and the inner body 8 is greatly reduced by the covering body 7, and as a result, when the airtight body 2 is inflated while the load is applied to the thin air jack 1, The airtight body 2 is uniformly expanded without a partial load applied to the airtight body 2, so that the breakage of the airtight body 2 can be prevented, and it is excellent in safety.

(2) The thin air jack 1 is attached to the valve mounting pipe 6 provided with the safety valve 5 because it is attached to the airtight body 2, so that the air is excessively poured into the airtightness even when the airtight body 2 is inflated. In the body 2, since excess air is discharged from the safety valve 5, the airtight body 2 is not broken, and it is more excellent in safety.

(3) The thin air jack 1 is excellent in airtightness of the airtight body 2, and the durability and the crack resistance of the outer casing 9 are excellent, so that air is not leaked during use. Alternatively, in the case where the outer casing 9 is broken during use, it is extremely excellent in safety.

(4) Thin air jack 1, due to the airtight body made of thin film 2. The synthetic resin-controlled cover 7 and the synthetic fiber-made inner body 8 and the outer structure 9 and the like having the same structure as the fire-fighting pipe. Therefore, when these are flat, it is possible to The thickness is extremely thin, and even for extremely narrow gaps, it can be inserted.

(5) The thin air jack 1 is provided with a check valve connecting device 3 at the front end portion of the air supply pipe 4, thereby changing the medium pipe, whether by the pump or compression of the manual bicycle Both the machine and the pedal-type pump are capable of supplying air, which is excellent in ease of use and operability.

(6) The thin air jack 1 is formed by folding both end portions of the airtight body 2 toward the inner side, so that even if the airtight body 2 is inflated, the both end portions are not excessively stretched. It is possible to prevent the both ends of the sealing body from being broken.

(7) The thin air jack 1 is inserted into the tube mounting cylinder portion 2a formed in the airtight body 2, and the base end portions of the air supply tube 4 and the valve mounting tube 6 are respectively inserted, and The wire 11 is tightly wound at the outer peripheral surface of each of the tube mounting cylinder portions 2a, and therefore, it can be maintained as compared with the case where the air supply tube 4 is inserted into the hole at the gas-tight body 2 to be opened. The strength of the airtight body 2 is such that the air supply pipe 4 and the valve mounting pipe 6 are difficult to be pulled out from the airtight body 2, and the airtightness between the pipe mounting cylinder portion and the air supply pipe 4 is also The air system becomes difficult to leak.

(8) Thin air jack 1, since it is as shown in Fig. 9, when the airtight body 2 is expanded, the air supply pipe 4 and the valve mounting pipe One of the portions 6 is strongly pressed toward the inner peripheral surface side of the outer casing 9 by the internal pressure of the airtight body 2, so that the air supply pipe 4 is difficult to be pulled out from the airtight body 2, The mechanism for preventing the extraction of the air supply pipe 4 does not need to have the necessary strength.

(9) The thin air jack 1 is set to be several cm or more in the air supply tube 4 and the insertion length of the air supply tube 4 and the valve mounting tube 6 for each of the tube mounting cylinder portions 2a of the airtight body 2, respectively. Between the outer peripheral surface of the base end portion of the valve mounting tube 6 and the inner peripheral surface of the tube mounting cylindrical portion 2a of the airtight body 2, the adhesive layer is interposed, so that the air supply tube 4 and the valve mounting tube 6 become more difficult to The airtight body 2 is pulled out, and the airtightness between the pipe mounting cylinder portion 2a and the air supply pipe 4 and the valve mounting pipe 6 is further improved, and the air system becomes more difficult to leak.

(10) The thin air jack 1 is attached to the peripheral portion of the airtight body 2, and the reinforcing sheet 10 made of a tape is attached. Therefore, the outer peripheral portion of the airtight body 2 is reinforced, even if air is used. When injected into the airtight body 2, the outer peripheral portion of the airtight body 2 also becomes difficult to be broken.

(11) The thin air jack 1 is held at the end of the airtight body 2, and both ends of the airtight body 2 are held by the inner body 8 made of the woven fabric of the guanamine fiber. Both ends of the airtight body 2 are hard to be broken.

(12) The thin air jack 1 is used for the inner and outer surfaces of the outer tube 9 to be used for the inner and outer surfaces of the fire-fighting tube. Therefore, the wear resistance and weather resistance of the outer body 9 are improved. Moreover, the strength of the exterior body 9 can be improved.

(13) The thin air jack 1 is fixed by a portion of the air supply pipe 4 and a portion of the outer casing 9 by caulking by the metal ring 13, so that the air supply pipe 4 becomes more Hard to pull out.

(14) In the thin air jack 1, since the tubular portion 2a of each of the airtight bodies 2 is placed inside the airtight body 2, when the airtight body 2 is expanded, the respective tubular mounting tubular portions 2a are not There is a case where an external force is applied, and it is possible to prevent the tube mounting portion 2a of the airtight body 2 from being broken.

Further, in the above-described embodiment, the thin air jack 1 is formed into a rectangular shape having a length of about 60 cm and a width of about 24 cm. However, in other embodiments, the thin air jack 1 may be formed into a square shape. It may be formed into a strip shape.

10 and FIG. 11 show a thin air jack 1 according to another embodiment of the present invention, which is used for repairing, inspecting, etc. an automobile of a general automobile or a special automobile. It is lifted or lifted by a person who has been lifted due to an earthquake or a typhoon, etc., and is rescued by a person who is pressed underneath.

In other words, the thin air jack 1 is provided with a gas-tight body 2 in the form of a rectangular bag formed into a sealed structure by a film, and an air supply pipe 4 in which the base end portion is airtight. Inserted into the airtight body 2, and provided with a branch joint 17 at the front end portion; and a check valve connecting rod 3 and a safety valve 5, which are respectively connected to the above-mentioned branch joint 17 And being connected to the air supply source; and the covering body 7 is formed into a rectangular bag shape by a synthetic resin material having a small frictional resistance, and the airtight body 2 is made to make the air supply pipe 4 The front end portion is housed in a state of being protruded outward; and the inner body 8 is formed into a rectangular bag shape by a woven fabric made of synthetic fibers, and the airtight body 2 and the covering body 7 are made The front end portion of the air supply pipe 4 is accommodated in a state in which the front end portion is protruded outward; and the cylindrical outer casing 9 is a cylindrical shape formed by turning the tube having the same structure as the fire protection tube into a cowl surface. The casing 9 is a tubular outer casing 9 to which a cylindrical fabric is applied, and the outer casing 9 is such that the airtight body 2, the covering body 7, and the inner body 8 are at least The front end portion of the check valve connecting device 3 and the safety valve 5 is housed from the one end portion of the outer casing 9 toward the outer side, and is closed while the both end portions are closed. Formed into a flat bag shape.

The thin air jack 1 is attached to the front end portion of the air supply pipe 4 at one end of the airtight body 2 in a gas-tight manner at the base end portion, and a bifurcated branch joint 17 is attached and connected thereto. The check valve connecting device 3 and the safety valve 5 are attached to the front end portions of the respective connecting pipes 4a and 4b at the two branch joints 17, and the valve mounting pipe 6 is omitted.

In addition, the front end portion of the air supply pipe 4, the branch joint 17, the connection pipes 4a and 4b, and the safety valve 5 are exposed to the outside from the exterior body 9, and are damaged due to some reasons. In this case, it is possible to perform exchange repairs simply and easily. At this time, the position of the branch joint 17 is set to be 1 cm from one end of the exterior body 9. Above location.

Further, in the above-described embodiment, the lengths of the two connecting pipes 4a and 4b are changed. However, in other embodiments, the two connecting pipes 4a and 4b may be used. The length is set to be the same.

Further, in the above-described embodiment, the branch joint 17 is exposed to the outside of the exterior body 9. However, in other embodiments, the branch joint 17 may be housed in the exterior body 9. Inside.

The other configuration of the thin air jack 1 is the same as that of the thin air jack 1 shown in Figs. 1 and 2, and is the same member as the thin air jack 1 shown in Figs. 1 and 2, The same components are denoted by the same reference numerals, and the detailed description thereof will be omitted.

The thin air jack 1 shown in Figs. 10 and 11 can exhibit the same operational effects as the thin air jack 1 shown in Figs. 1 and 2 . Further, since the thin air jack 1 shown in Figs. 10 and 11 is omitted, the thin air jack 1 shown in Figs. 1 and 2 can be assembled. The simplification of the work and the shortening of the assembly time. Further, the thin air jack 1 shown in Figs. 10 and 11 is attached to the check valve connecting member 3, the safety valve 5, the air supply pipe 4, and the branch joint 17 to one of the outer casings 9. Since the state of the long side is arranged, the long side portion of the other outer casing 9 has only the thickness of the airtight body 2, the covering body 7, the inner body 8, and the outer casing 9. So even if it’s Very narrow gaps can also be inserted.

Further, the thin air jack 1 shown in Fig. 1 is configured such that only the front end portion of the safety valve 5 is exposed outside the outer casing 9, but the front end portion of the valve mounting pipe 6 may be exposed outside. The entire safety valve 5 is exposed to the outside of the exterior body 9 except for the package 9.

Further, the thin air jacks 1 shown in Fig. 1 and Fig. 10 are each configured such that the front end portion of the air supply pipe 4 protrudes from the one end of the outer casing 9 toward the outer side by a few centimeters, but A length of several m can be used at the air supply pipe 4, and the position of the check valve connecting device 3 can be greatly protruded from one end of the outer casing 9. According to this configuration, the thin air jack 1 can be used in water, and if the air is supplied to the thin air jack 1 from the check valve connecting device 3 positioned on the ground, for example, it can be sunk. The weight of a car or the like in the water moves or floats. In this case, the length of the air supply pipe 4 is set to a maximum length of about 5 m. Further, when the thin air jack 1 shown in Fig. 1 is used in water, the valve mounting pipe 6 is set to the same length as the air supply pipe 4, and the safety valve 5 is placed on the ground. Further, when the thin air jack 1 is used in water, when the length of the air supply pipe 4 is not sufficient, it is only necessary to use a joint (not shown) to additionally connect the other air supply pipe 4.

[Industry use possibility]

The thin air jack 1 of the present invention is used to drive a car If the weight or the collapsed building or the like is lifted, the airtight body 2 and the exterior body 9 may be greatly expanded so that the outer shape thereof may become a cylindrical shape. The thin air jacks 1 which have been greatly expanded are juxtaposed in parallel and used as rollers.

1‧‧‧Thin air jack

3‧‧‧With check valve connection

4‧‧‧Air supply pipe

5‧‧‧Safety valve

9‧‧‧Outer body

9a‧‧‧ Ultrasonic fusion of the outer body

13‧‧‧Metal ring

14‧‧‧ buckle (buttonhole)

15‧‧‧ center mark

16‧‧‧Warning signs

Claims (20)

A thin air jack characterized in that: an airtight body is formed into a bag shape of a sealing structure by a film; and an air supply pipe is configured such that the base end portion is airtightly inserted into the air. a dense body, and a check valve connecting device connected to the air supply source is disposed at the front end portion; and the valve mounting tube is configured such that the base end portion is airtightly inserted into the airtight body, and a safety valve is disposed at the front end portion; and the covering body is formed into a bag shape by a synthetic resin material having a small frictional resistance, and the airtight body is disposed so that the air supply pipe and the valve mounting pipe are at the front end The inner body is formed in a state of being protruded toward the outer side; and the inner body is formed into a bag shape by a woven fabric made of synthetic fibers, and the airtight body and the covering body are made into an air supply pipe and a valve mounting pipe. The front end portions are respectively accommodated in a state of being protruded toward the outside; and the outer tubular body is a cylindrical outer casing formed by turning the tube having the same structure as the fire-fighting tube as a turning outer surface, or Is to apply a coated tube to the cylindrical fabric In the exterior body, the airtight body, the covering body, and the inner body are configured such that at least the front end portion of the check valve connecting device and the safety valve are outwardly formed from one end portion of the outer casing The protruding state is accommodated, and is formed into a flat bag shape in a state where both end portions are closed. The thin air jack according to the first aspect of the invention, wherein the gas-tight body is a multilayer film excellent in gas barrier properties or The single-layer film is formed into a rectangular bag shape having a sealed structure, and is provided with a tube-mounted tubular portion in an inclined posture in which the base end portions of the air supply tube and the valve mounting tube are inserted, respectively, at two sides thereof. Further, the air supply pipe and the valve mounting pipe are each inserted into each of the pipe mounting cylinder portions of the airtight body, and a part or all of the outer circumferential surface of the pipe fitting portion is locked by the lock. It is tightly closed and locked in an airtight manner to prevent it from being pulled out. The thin air jack according to the first aspect of the invention, wherein the covering body is formed into a rectangular bag shape in which at least one side is opened by a synthetic resin tube or a synthetic resin sheet, and At the side where the open sides are adjacent to each other, a lead-out hole is formed which leads to the front end side of the air supply pipe and the valve mounting pipe toward the outside. The thin air jack according to the first aspect of the invention, wherein the outer casing is an inner peripheral surface of a jacket in which a horizontal yarn made of synthetic fibers and a cross yarn made of synthetic fibers are knitted into a tubular shape. A pipe having the same structure as a fire-fighting pipe in which an inner liner of a thermoplastic polyurethane elastomer is formed is turned inside or outside, or a painter is applied to a cylindrical fabric, and at least a check valve is attached And the front end portion of the safety valve is opened from the base end portion of the outer casing and protrudes toward the outer side, and the end portions of the fire-fighting pipe or the cylindrical fabric are opened by the buckle, the fuse, and the seam. At least one of them is closed and formed into a flat bag shape. The thin air jack according to the second aspect of the invention, wherein the tube fitting tube portion and the air supply tube of the airtight body and The base end portion of the valve mounting tube is located inside the airtight body, and the air supply tube and the front end portion of the valve mounting tube are located outside the airtight body. The thin air jack according to the second aspect of the invention, wherein the insertion length of the air supply pipe and the valve mounting pipe to the pipe-mounted tubular portion of the airtight body is set to several cm or more. The thin air jack according to the second aspect of the invention, wherein the outer peripheral surface of the air supply pipe and the valve mounting pipe and the inner circumferential surface of the pipe mounting cylinder of the airtight body are respectively interposed. Agent layer. A thin air jack characterized in that: an airtight body is formed into a bag shape of a sealing structure by a film; and an air supply pipe is configured such that the base end portion is airtightly inserted into the air. a dense body, and a branch joint at the front end; and a check valve connecting rod and a safety valve are respectively connected to the above-mentioned branch joint and connected to the air supply source; and the cover body is borrowed The synthetic resin material having a small frictional resistance is formed into a bag shape, and the airtight body is accommodated in a state in which the front end portion of the air supply pipe protrudes outward; and the inner body is synthesized by The woven fabric made of a fiber is formed into a bag shape, and the airtight body and the covering body are accommodated in a state in which the end portion of the air supply pipe protrudes outward; and the cylindrical outer casing is a tubular outer casing formed by turning the same surface as the fire-fighting pipe, or for a cylindrical fabric Applying a coated tubular outer casing, the outer casing is such that the airtight body, the covering body and the inner body at least cause the check valve connecting device and the front end portion of the safety valve from the outer casing One of the ends is housed in a state of being protruded toward the outside, and is formed into a flat bag shape in a state where both end portions are closed. The thin air jack according to the eighth aspect of the invention, wherein the airtight body is formed into a rectangular bag shape of a sealed structure by a multilayer film or a single layer film having excellent gas barrier properties, and A tube mounting tube portion having an inclined posture for inserting a base end portion of the air supply tube is provided at one side, and the air supply tube is installed in a tube whose base end portion is inserted into the airtight body. In the tubular portion, a part or all of the outer peripheral surface of the tube-mounted tubular portion is locked in an airtight manner by a locking means to be prevented from being pulled out. The thin air jack according to the second or the ninth aspect of the invention, wherein the multilayer film is a nylon multilayer film, and the single layer film is a thermoplastic polyurethane film. The thin air jack according to the ninth aspect of the invention, wherein the tube mounting tube portion of the airtight body and the base end portion of the air supply tube are located inside the airtight body, and the air supply tube is at the front end The department is located outside the airtight body. The thin air jack according to the second or the ninth aspect of the patent application, wherein the airtight body is not provided with a tube mounting cylinder The two opposite sides of the part are folded toward the inside. The thin air jack according to the ninth aspect of the invention, wherein the insertion length of the tube-fitting tube portion of the air supply tube to the airtight body is set to several cm or more. The thin air jack according to claim 9, wherein an adhesive layer is interposed between the outer peripheral surface of the base end portion of the air supply pipe and the inner peripheral surface of the pipe mounting tubular portion of the airtight body. A thin air jack according to the first or eighth aspect of the invention, wherein a part or all of the outer peripheral portion of the airtight body is attached to a tape or a cloth or a resin sheet. Reinforcement film. A thin air jack according to the first or eighth aspect of the invention, wherein the check valve connecting device is a one-touch joint type check valve coupler. The thin air jack according to the eighth aspect of the invention, wherein the covering body is formed into a rectangular bag shape in which at least one side is opened by a synthetic resin tube or a synthetic resin sheet, and At the side where the open side is adjacent to each other, a lead-out hole is formed which leads the front end side of the air supply pipe toward the outside. The thin air jack according to the first or eighth aspect of the invention, wherein the inner body is made of a belt-like woven fabric made of synthetic fibers, and both ends of the belt-shaped woven fabric are overlapped. And the overlapping portion of the airtight body is held by the inner surface of the inner body by sewing the inner portion of the inner body and the covering body. Composition. The thin air jack according to the eighth aspect of the invention, wherein the outer casing is an inner peripheral surface of a jacket in which a horizontal yarn made of synthetic fibers and a cross yarn made of synthetic fibers are knitted into a tubular shape. A pipe having the same structure as a fire-fighting pipe in which an inner liner of a thermoplastic polyurethane elastomer is formed is turned inside or outside, or a painter is applied to a cylindrical fabric, and at least a check valve is attached And the front end portion of the safety valve is opened from the base end portion of the outer casing and protrudes toward the outer side, and the end portions of the fire-fighting pipe or the cylindrical fabric are opened by the buckle, the fuse, and the seam. At least one of them is closed and formed into a flat bag shape. A thin air jack according to claim 1 or 8, wherein one of the air supply pipe and a portion of the outer casing are fixed by a riveting process by a metal ring.