JP2012232487A - Air compression apparatus for tire repair and adapter for repair liquid bottle used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable prompt repair especially in a cold district by shortening the repair time of a tire that blows out and reducing the cost.SOLUTION: In an air compression apparatus (1) for tire repair that includes: an air compressor (2); a repair liquid bottle (30); and an adapter that connects the repair liquid bottle (30) to the air compressor (2) and a tire to be repaired, the adapter (4) has an air injection pipe (50) that introduces the compressed air in the repair liquid bottle (30), the air injection pipe (50) has a vent hole (57) that leads to the external at a position higher than the liquid level in the repair liquid bottle (30) that is to be attached. The vent hole (57) is normally closed and a pressure valve device (7) which is opened by the internal pressure when the internal pressure rises is provided for the air injection pipe (50).

Description

  The present invention relates to an air compressor for tire repair, and more particularly to an air compressor for tire repair that can inject a repair station into a tire together with compressed air.

At present, the most important components of the air compressor used for repairing and filling air with a punctured tire are the air compressor, the repair fluid bottle containing the tire repair fluid, and the repair fluid bottle Is an adapter used to connect the air compressor to the tire to be repaired.
This adapter has a bottle attachment part to which a repair liquid bottle is attached, a compressed air introduction pipe connected to the air compressor through a hose, and a repair connected to the air supply port of the tire to be repaired through the hose as well. A liquid delivery pipe is provided, and further, an air injection pipe is provided which is attached coaxially with the bottle mounting portion and extends upward from the repair liquid level in the repair liquid bottle.

One end of the air injection pipe is attached to the adapter. The inside of the air injection pipe communicates with the compressed air introduction pipe, and the other free end is provided with a vent hole and a pressure valve device for closing the vent hole.
In a situation where the tire is not repaired, the pressure valve device closes the vent hole of the air injection pipe, so that the repair liquid does not flow into the air injection pipe.

When repairing by injecting repair liquid into the tire, the user uses the connecting hose to connect the air inlet pipe of the repair liquid bottle and the air outlet pipe of the air compressor, and repairs with another connecting hose. Connect the repair liquid delivery pipe of the liquid bottle and the air inlet of the damaged tire.
When the air compressor is started, the air compressor sends compressed air from its delivery pipe toward the air inlet pipe of the repair liquid bottle, and when the compressed air reaches the air injection pipe inserted into the repair liquid bottle, The pressure valve is opened by the pressure.

In the conventional apparatus, the length of the air injection pipe inserted into the repair liquid bottle is short, so that the free end of the air injection pipe is immersed in the repair liquid together with the pressure valve. After being sprayed into the repair liquid filled in the bottle, it is necessary to ascend to the surface of the repair liquid.
Then, when the air pressure in the repair liquid bottle is sufficiently increased, the repair liquid level is pushed down, and the repair liquid is sent out from the delivery pipe and injected into the tire.
In this work method, the high-viscosity repair liquid filled in the repair liquid bottle is discharged, so it is necessary to overcome the viscous resistance of the repair liquid when air is fed. Since it is expensive, it takes a considerable amount of time to repair tires by injecting repair liquid with this type of air compressor, especially in extremely cold regions, and this greatly impedes rescue operations.

JP 2010-173119 A

  An object of the present invention is to provide an air compressor for a rescue operation that can efficiently and quickly repair a punctured tire and fill an air even in an ultra-low temperature environment of 40 ° C. or less below zero.

  In the air compression apparatus according to the present invention, the air injection pipe for introducing the compressed air into the repair liquid bottle has an upper end portion, more specifically, a vent hole provided in the vicinity of the upper end of the air injection pipe and its passage. A pressure valve device provided to close the pores is extended so as to be exposed above the repair liquid level in the attached bottle.

The main object of the present invention is to provide an air compressor device capable of promptly repairing a punctured tire and filling it with air, which comprises an air compressor, a repair fluid bottle filled with repair fluid, And a hose joint connected to the air compressor and the tire to be repaired, and an adapter having a bottle mounting portion to which the open end of the repair liquid bottle is attached.
At the center of the bottle mounting member, an air injection pipe extending into the correction liquid bottle mounted thereon and having a length that allows the free end to be exposed to the repair liquid surface is provided. Near the free end, at least one vent hole is provided.
When the repair liquid bottle is used normally, the position of this vent is higher than the repair liquid level, so the air produced by the air compressor does not need to pass through the repair liquid, and the air injection pipe Since it directly enters the space in the can through and pushes down the surface of the repair liquid, the time required for tire repair and air filling can be greatly shortened.

The end of the air injection tube that is connected to the bottle mounting member is an opening, and the other free end is closed. This open end communicates with the air introduction pipe of the bottle mounting member, and at least one vent hole is provided at a location near the sealed end of the air injection pipe. A pressure valve with expansion / contraction elasticity is covered so as to close the pores.
When repairing and filling with air, the compressed air produced by the air compressor passes through the vent hole of the air injection pipe, expands the pressure valve and enters the space at the top of the repair liquid bottle, but if the supply of compressed air stops Since the pressure valve closes the vent hole, even when the apparatus is laid down, the repair liquid does not flow back into the air injection pipe and further into the air compressor.

The bottle mounting member connected to the air injection pipe is provided with a pressure valve, and the pressure valve includes a valve seat having a plurality of flow holes, a ring-shaped valve ring, and a spring.
The repair liquid pushed down by the compressed air moves the valve ring and is sent out through the repair liquid delivery pipe of the bottle mounting member, so that tire repair and air filling can be performed efficiently.
The specific structure of the present invention and the efficiency during use will be described with reference to the following drawings.

Drawing 1 is an explanatory view showing the state where a bottle mounting member was attached to an air compressor and a repair liquid bottle. FIG. 2 is a side view showing a state in which the repair liquid bottle is attached to the air supply pipe of the air compressor shown in FIG. 1 via a bottle attachment member. FIG. 3 is a perspective view showing a state where the bottle mounting member is mounted on the repair liquid bottle. FIG. 4 is a three-dimensional exploded view showing the configuration of the bottle mounting member. FIG. 5 is a cross-sectional view showing a state where the repair liquid bottle is attached to the bottle mounting member. Example 1 FIG. 6 is an explanatory view showing a state in which compressed air is supplied to the inside of the repair liquid bottle shown in FIG. FIG. 7 is a cross-sectional view similar to FIG. 5 showing a modification of the pressure valve provided in the air injection pipe. (Example 2) FIG. 8 is an explanatory view showing a state in which compressed air is supplied to the inside of the repair liquid bottle shown in FIG.

As shown in FIGS. 1, 2, 3, and 5, an air compressor apparatus 1 that performs tire repair and air filling according to the present invention includes an air compressor 2, a repair liquid bottle 30, and an adapter 4.
The air compressor 2 has a cylinder chamber 20 in which a piston (not shown) is accommodated.
The compressed air generated by the motor 21 moving the gear 22 and the piston reciprocating in the axial direction in the cylinder chamber 20 is sent out through the air supply pipe 27 of the air tank 23.

A branch pipe 24 can be further provided in the air tank 23, and a pressure gauge 25 and a safety valve 26 can be attached to the branch pipe 24.
Since the above air compressor structure is a typical structure commonly found, further details will be omitted.
The air supply pipe 27 of the air compressor 2 is connected to the repair liquid bottle 30. The repair liquid bottle 30 has an open end 33 and a bottom wall 35, and the inside thereof is a repair liquid storage chamber 31. (See Figure 5)

The bottle mounting member 40 is provided with an air introduction pipe 41 and a repair liquid delivery pipe 43. FIG. 3 is a view showing a state in which the repair liquid bottle 30 is attached to the bottle mounting member 40.
The repair liquid bottle 30 filled with the repair liquid 32 can be attached to the bottle mounting member 40.
Further, the air supply pipe 27 of the air compressor 2 can be connected to the air introduction pipe 41, and the repair liquid supply pipe 43 can be connected to the connection hose 28 (see FIG. 6). Of course, this connecting hose 28 is connected to a damaged tire air port (not shown) to be repaired.

As shown in FIGS. 4 and 5, the adapter 4 is provided with an air introduction pipe 41 and a repair liquid delivery pipe 43 extending outward, and an air having a pipe line 42 inside the bottle mounting member 40. The injection tube holding part 45 extends.
The air introduction pipe 41 has a pipe line 410 and is connected to the pipe line 42 of the air injection pipe holding part 45 described above. In addition, the bottle mounting member 40 described above is provided with a short cylindrical valve chamber wall member 44 around the air injection tube holding portion 45, and the air injection tube holding portion 45 and the cylindrical valve chamber wall member 44 are connected to each other. A spring chamber 46 is formed therebetween, and a plurality of positioning pins 47 arranged at intervals are provided at the top end of the cylindrical valve chamber wall member 44. The repair liquid delivery pipe 43 described above has a pipe line 430 connected to the spring chamber 46 described above.

At one end of the air injection pipe 50, there is a stepped portion 53 whose outer diameter is reduced, and from this stepped portion 53 is a small diameter portion 51 having a smaller outer diameter. An opening 510 is provided at the tip of the small diameter portion 51, and a ring flange portion 54 projects from the outer wall of the air injection pipe 50 slightly above the stepped portion 53.
Further, the other free end of the air injection pipe 50 is closed by a sealing plate 55.
A compressed air passage 52 is formed in the air injection pipe 50, and an annular protrusion 56 is provided on the outer peripheral surface near the sealing plate 55 of the air injection pipe 50, and a plurality of passages are provided on the annular protrusion 56. A pore 57 is provided. The vent hole 57 becomes a passage when the air in the compressed air passage 52 of the air injection pipe 50 enters the repair liquid bottle 30.
A plurality of annular protrusions 58 are provided above the annular protrusions 56 to prevent them from coming off, and an annular groove 59 is further provided below the annular protrusions 56.

  The air injection tube 50 is fixed by fitting the tip of the air injection tube holding part 45 of the bottle mounting member 40 described above into the opening 510 of the small diameter part 51. At that time, the pipe line 42 of the air injection pipe holding part 45 and the pipe line 410 of the air introduction pipe 41 described above are connected, and the compressed air produced by the air compressor 2 enters the compressed air passage 52 of the air injection pipe 50. . When the air injection pipe 50 is connected to the bottle mounting member 40 and the bottle mounting member 40 is connected to the above-described repair liquid bottle 30 by a screw method, the air injection pipe 50 is connected to the repair liquid storage chamber 31 of the repair liquid bottle 30. Most of the air injection pipe 50 is immersed in the repair liquid 32 described above.

A pressure valve 7 is provided at the top of the air injection pipe 50 so as to close the vent hole 56.
The pressure valve 7 is made of a soft cylindrical thin film having elastic elasticity. This can be made of rubber or plastic rubber, and is a short cylindrical cover with openings at both ends.
The pressure valve 7 covers the sealing plate 55 of the air injection pipe 50 described above and closes the vent hole 57. When there is no air pressure exiting through the vent hole 57 of the air injection pipe 50, the pressure valve 7 blocks the vent hole 57, so that the repair liquid 32 in the repair liquid bottle 30 flows backward and the air injection pipe 50. Never get inside.
When the air compressor is in use and continues to produce compressed air, this air pressure exits the vent hole 57 of the air injection tube 50 to expand the pressure valve 7 and into the repair fluid bottle 30. Of course, in order to prevent the pressure valve 7 from being detached from the air injection pipe 50 by the action of air pressure that is too strong, a non-slip ring 71 having a relatively high hardness can be formed at the opening end of the pressure valve 7, and the anti-slip ring 71 is fitted in the concave groove 59 of the air injection tube 50.

The pressure valve 6 includes a valve seat 62 having an internal space 66, a ring-shaped valve ring 60 having a circular hole 601, and a spring 61.
The flat flange portion 67 having a relatively small diameter extends inward at the top end of the valve seat 62 described above, and the flat flange portion 63 having a relatively large diameter extends outward at the lower end.
A plurality of positioning holes 64 are arranged on one circumference on the outer edge side of the flange portion 63, and a plurality of flow holes 65 are provided on the inner circumference which are different from the above. ing.
The spring 61 is installed in the spring chamber 46 of the bottle mounting member 40 described above, and the valve ring 60 is fitted into the stepped portion 53 of the air injection pipe 50 using the circular hole 601. The top end of the spring 61 is contacted.

The valve seat 62 described above is fitted into the air injection pipe 50 by utilizing the internal space 66, and the flange portion 67 is blocked and stopped by the flange portion 54 on the air injection pipe 50.
The positioning hole 64 on the flange portion 63 of the valve seat 62 is fitted and fixed on the positioning pin 47 provided on the cylindrical valve chamber wall member 44 of the bottle mounting member 40 described above. The ring 60 is just between the flange 63 of the valve seat 62 and the spring 61.
The O-shaped washer 8 is installed on the bottom surface 401 around the cylindrical valve chamber wall member 44 of the bottle mounting member 40, and the pressure valve 6, the air injection pipe 50, the pressure valve 7 and the bottle mounting member 40 are assembled and fixed. When the bottle mounting member 40 is connected to the opening end 33 having the thread 34 of the repair liquid bottle 30 described above by a screw method, one complete combined body can be formed.

FIG. 3 shows the external appearance of the combined body when it is not used, that is, when it is not attached to the air compressor.
FIG. 5 shows a cross-sectional structure of the internal related parts.
The main feature of the air compressor according to the present invention is that when the repair liquid bottle 30 is in use, the compressed air produced by the air compressor 2 does not need to pass through the repair liquid 32 in the repair liquid bottle 30, and the air Resistance when air passes through the repair liquid 32 layer by being sent to the space 36 above the liquid level of the repair liquid 32 in the repair liquid bottle 30 through the vent hole 57 through the compressed air passage 52 of the injection pipe 50. Can save you wasted time.

  A feature of the structure that exerts such an effect is that the height of the air injection pipe 50 or the height of the vent hole 57 of the air injection pipe 50 is higher than the liquid level of the repair liquid 32. Here, in view of the point that it is necessary to clarify the standard for comparing the “height”, the “use state” and the “height” of the present invention will be defined here. As shown in FIG. 3 showing the combined body when the repair liquid bottle 30 and the bottle mounting member 40 are assembled, the state where the bottle mounting member 40 is on the top and the bottom wall 35 of the repair liquid bottle 30 is on the bottom is as follows. The bottle inverted state in which the bottle mounting member 40 is at the bottom and the bottom wall 35 of the repair liquid bottle 30 is at the top is referred to as the “use state”.

  That is, the state shown in FIG. 5 is a state when the repair liquid bottle 30 and the adapter 4 of the apparatus of the present invention are assembled, and the damaged tire is repaired and filled with air. “Height” is a comparison in the “use state” when the air injection tube 50 is connected to the bottle mounting member 40 or when the air injection tube 50 and the bottle mounting member 40 are integrally molded. When extending into the bottle, the height of the air injection tube 50 is from one end (that is, the sealing plate) far from the bottle mounting member 40 of the air injection tube 50 to the bottom surface 401 of the bottle mounting member 40, and similarly. The liquid level of the repair liquid 32 is from the surface of the repair liquid 32 in the repair liquid bottle 30 to the bottom surface 401 of the bottle mounting member 40.

As shown in FIG. 5, when the repair liquid bottle 30 is in use, air flows into the vent hole 57 in the space 36 of the repair liquid bottle 30 through the compressed air passage 52 of the air injection pipe 50.
The length of the air injection tube 50 (or height) is longer than the height of the repair liquid 32 surface, the most important from the vent hole 57 height L ₁ of the bottom surface 401 of the bottle mounting member 40 is repair liquid 32 The height L ₀ is greater than the height L ₀ from the surface to the bottom surface 401 of the bottle mounting member 40.
With such a feature, the compressed air produced by the air compressor 2 passes through the air injection pipe 50, passes through the vent hole 57, and is sent directly into the space 36 in the repair liquid bottle 32, so that the air needs to pass through the repair liquid 32. Therefore, the time that air is wasted due to the resistance of the repair liquid 32 can be reduced.

  Furthermore, in an extremely cold cold zone, for example, in an environment of 40 ° C. below zero, it is inevitable that it takes a considerable amount of time for air to pass through the repair liquid 32 having a high viscosity. Therefore, the present invention can improve the work efficiency of repair and air filling and can greatly shorten the work time with such a feature of the structure.

5 and 6 will be described. In the state shown in FIG. 5, there is no pressure inside the repair liquid bottle 30, and the spring 61 extends to push up the valve ring 60 and press against the valve 62, so that the repair liquid 32 is contained in the pressure valve 6. The valve ring 60 prevents the fluid from flowing into the repair liquid delivery pipe 43.
In the state shown in FIG. 6, the air compressor 2 sends out the compressed air, and the compressed air enters the compressed air passage 52 of the air injection pipe 50 through the pipe line 410 of the air introduction pipe 41 and further proceeds to the vent hole 57. Upon exiting through, the pressure valve 7 is expanded and enters the space 36 of the repair liquid bottle 30.
Since the compressed air that has entered the space 36 directly pushes down the surface of the repair liquid 32, the repair liquid 32 moves downward and passes through the flow hole 65 provided on the flange portion 63 of the valve seat 62. Press 60 down.

The valve ring 60 gradually compresses the spring 61, slides downward along the stepped portion 53 of the air injection tube 50, and reaches the small diameter portion 51 of the air injection tube 50.
When the valve ring 60 further advances and moves into the spring chamber 46 of the bottle mounting member 40, the repair liquid 32 flows into the spring chamber 46 through a plurality of flow holes 65 on the flange portion 63 of the valve seat 62, Exit through line 430 of repair liquid delivery pipe 43. Of course, since the repair liquid delivery pipe 43 is connected to the air port (not shown) of the damaged tire by the connecting hose 28, the repair liquid 32 is immediately sent into the tire to achieve the purpose of tire repair. .

A second embodiment of the present invention is shown in FIGS.
The difference between the second embodiment and the first embodiment described above is the form of the pressure valve 7 provided at the top of the air injection pipe 50. In this second embodiment, the pressure valve 7 is formed from a cylindrical body with a bottom plate 72. The opening end is provided with a retaining protrusion 71 that protrudes inward.
The pressure valve 7 is put on an air injection pipe 50 having a vent hole 57. The air injection pipe 50 is provided with an annular protrusion 58, the pressure valve 7 is provided with a retaining protrusion 71, the retaining protrusion 71 gets over the annular protrusion 8, and the bottom plate 72 is a closing plate 55 of the air injection pipe 50. It is pushed over to the position where it contacts closely.
As a result, the pressure of the compressed air that has exited through the vent hole 57 acts on the bottom plate of the pressure valve 7, pushes the pressure valve 7 upward toward the air injection pipe 50, opens the vent hole 57, and the compressed air is It enters the space 36 in the repair liquid bottle 30.
In that case, as in the case of the first embodiment, the repair liquid 32 is immediately sent into the tire, and the purpose of tire repair is achieved.

  In summary, the structure of the present invention is not only different from the conventional apparatus, but also novel, and the air pressure generated by the air compressor is higher than the level of the repair liquid in the repair liquid bottle. The high design prevents compressed air from rising in the repair liquid, so the air pressure reaches the repair liquid bottle space directly through the air inlet pipe and drains the repair liquid. You can save time. Further, according to the present invention, when the air compressor is not in operation, the repair liquid in the repair liquid bottle is prevented from flowing out of the repair liquid bottle by the protective action of the pressure valve. By blocking the vent hole, the repair liquid can be prevented from flowing back into the air compressor.

The configuration of the pressure valve used in the present invention is not limited to the one shown in the first and second embodiments, and the position, shape, number, etc. of the vent holes 57 are not limited to the pressure valve. The design can be freely changed according to the shape of the device.
For example, with regard to pressure valves, ones using Kochi balls and springs, membranes that burst under a certain pressure, or leaf springs that deform can be used. May also be provided on the sealed plate of the air injection tube.

  Since the time required for tire repair can be shortened, the present invention not only reduces the repair cost, but is particularly useful for urgent repairs, and can greatly benefit from the present invention.

DESCRIPTION OF SYMBOLS 1 Air compressor apparatus 2 Air compressor 20 Cylinder chamber 21 Motor 22 Gear 23 Air tank 24 Branch pipe 25 Pressure gauge 26 Safety valve 27 Air supply pipe 28 Hose 30 Repair liquid bottle 31 Repair liquid storage chamber 32 Repair liquid 33 Open end 34 Thread 35 Bottom wall 36 Space 4 Adapter 40 Bottle mounting member 401 Bottom surface 40 Air introduction pipe 410? Pipe line 42 Pipe line 43 Repair liquid delivery pipe 430 Pipe line 44 Cylindrical valve chamber wall member 45 Air injection pipe holding part 46 Spring chamber 47 Positioning Pin 50 Air injection pipe 51 Small diameter portion 510 Opening 52 Compressed air passage 53 Stepped portion 54 Flange portion 55 Sealing plate 56 Annular projection 57 Venting hole 58 Annular projection 59 Groove 6 Pressure valve 60 Valve ring 601 Circular hole 61 Spring 62 Valve seat 63 Flange portion 64 Positioning hole 65 Flow hole 66 Internal space 67 Franc Die 7 Pressure valve 71 Non-slip ring 72 Sealing surface 8 O-type washer

Claims (5)

An air compressor for tire repair (1) comprising an air compressor (2), a repair liquid bottle (30), and an adapter for connecting the repair liquid bottle (30) to the air compressor (2) and the tire to be repaired. In the above-mentioned tire repair air compressor (1), wherein the adapter (4) comprises the following components A to H:
(A) Repair liquid bottle mounting portion (40) to which the repair liquid bottle (30) is mounted.
(B) The air introduction pipe (41) which has a pipe line (410) inside and is connected to the air supply pipe (27) of the compressor (2).
(C) The air injection pipe holding part (45) which has the pipe line (42) which leads to the pipe line (410) of the air introduction pipe (41) inside and is provided coaxially with the repair liquid bottle mounting part (40). .
(D) One end is fixed by the air injection pipe holding part (45), and a vent hole (57) leading to the outside is provided at a position higher than the liquid level in the repair liquid bottle (30) to be attached to the free end part. Having an air injection tube (50).
(E) A pressure valve device (7) which is attached to the air injection pipe (50), normally closes the vent hole (57), and is opened by the internal pressure when the internal pressure of the air injection pipe (50) increases.
(F) A valve chamber wall member (44) provided coaxially between the repair liquid bottle mounting part (40) and the air injection pipe holding part (45).
(G) A pressure valve device (6) provided in the valve chamber surrounded by the valve chamber wall member (44), normally closed and opened when the repair liquid bottle internal pressure rises.
(H) A repair liquid delivery pipe (43) provided with a flow path (430) for discharging the repair liquid (32) flowing out from the pressure valve device (6).   2. The tire repair air compressor (1) according to claim 1, wherein the pressure valve device (7) attached to the air injection pipe (50) is made of a soft cylindrical thin film having elastic elasticity.   The air compression device (1) for tire repair according to claim 2, wherein the soft cylindrical thin film having elastic elasticity constituting the pressure valve device (7) includes a non-slip ring (71) at one end thereof.   The tire repair air compression device (1) according to claim 1, wherein the pressure valve device (7) attached to the air injection pipe (50) comprises a cylindrical body with a bottom plate 72 that covers the air injection pipe 50. .   An adapter (4) for use in a tire repair air compressor (1) according to claim 1.

Images