JP6943013B2 - Bottle unit for puncture repair - Google Patents

Description

The present invention relates to a puncture repair bottle unit for sequentially injecting a puncture repair liquid and compressed air into a punctured tire to repair a puncture.

For example, in Patent Document 1 below, as shown in FIG. 6, a bottle unit a for repairing a flat tire is shown. The bottle unit a includes a cap c having a mounting recess c1 to which the mouth portion b1 of the bottle container b is screwed. Further, the first flow path d and the second flow path e are opened in the boss portion c2 protruding from the bottom surface of the mounting recess c1. The first flow path d sends the compressed air from the compressor f into the bottle container b. The second flow path e sequentially takes out the puncture repair liquid and the compressed air from the bottle container b.

The cap c is provided with an inner lid g for sealing the puncture repair liquid in the bottle container b in the stored state. The inner lid g integrally includes a lid main body g1 fitted to the outer peripheral surface of the boss portion c2 and a shaft plug portion g2 fitted to the first flow path d. In the inner lid g, the lid main body g1 and the shaft plug portion g2 are simultaneously removed by the compressed air from the compressor, and the first and second flow paths d and e are opened.

However, since the inner lid g is formed of a synthetic resin, its elasticity changes depending on the ambient temperature. Therefore, for example, when the vehicle is stored in a vehicle in a high temperature environment in summer, the fitting force is reduced, and the inner lid g tends to be easily removed due to vehicle body vibration or the like. On the contrary, when repairing a flat tire in winter, which is a low temperature environment, the fitting force becomes high and the compressed air from the compressor tends to be difficult to remove. As described above, in the conventional bottle unit a, the fitting force of the inner lid g is greatly affected by the environmental temperature, so that the reliability of the sealing and opening functions of the puncture repair liquid is inferior.

Japanese Unexamined Patent Publication No. 2009-23123

Therefore, an object of the present invention is to provide a bottle unit for puncture repair that can improve the reliability of sealing and opening the puncture repair liquid.

The present invention is a puncture repair bottle unit including a bottle container containing a puncture repair liquid and a cap attached to the mouth of the bottle container.
The cap
A first flow path having a first opening that opens in the bottle container and sending compressed air from the compressor into the bottle container.
It has a second opening that opens in the bottle container, and is provided with a second flow path for sequentially taking out the puncture repair liquid and the compressed air from the bottle container by sending the compressed air.
The first opening and the second opening are sealed by a film-shaped first inner lid and a second inner lid that are torn by the pressure of the compressed air, respectively.

In the bottle unit for puncture repair according to the present invention, it is preferable to provide a one-sided valve on the outside of the first inner lid to prevent the puncture repair liquid from flowing back into the first flow path.

As the one-sided valve, a valve having a slit at the tip of the body portion surrounding the first inner lid and the slit being opened only by the pressure from the first flow path side to allow compressed air to pass through can be preferably adopted.

Further, the one-sided valve includes a film-shaped seat valve that closes the first opening via the first inner lid, and the seat valve is adhered to a part around the first opening. Therefore, it is also possible to preferably adopt a one in which the non-adhesive portion of the seat valve is lifted only by the pressure from the first flow path side to allow compressed air to pass therethrough.

In the bottle unit for puncture repair according to the present invention, the first and second inner lids are preferably made of a thermoplastic resin and welded around the first and second openings.

In the present invention, as described above, the first opening and the second opening that open in the bottle container are sealed by a film-shaped first inner lid and a second inner lid that are torn by the pressure of compressed air, respectively. NS.

Therefore, at the time of puncture repair, the pressure of the compressed air from the compressor first breaks the first inner lid, and the compressed air can be taken into the bottle container through the first opening. Further, as the pressure inside the bottle container increases, the second inner lid is torn, and the puncture repair liquid and the compressed air can be sequentially taken out from the second opening.

Here, the breaking force of the film material is less affected by the change in the environmental temperature than in the case of the fitting force. Therefore, the puncture repair liquid can be reliably sealed and opened, and the reliability can be improved. Since it uses a film material, it is inexpensive and can contribute to cost reduction.

It is a partial cross-sectional view which shows one Embodiment of the bottle unit of this invention. It is a perspective view of a cap. (A) and (B) are a perspective view and a cross-sectional view showing one valve of the first embodiment. (A) and (B) are side views showing the operation of one valve of the first embodiment. (A) and (B) are a plan view and a cross-sectional view showing one valve of the second embodiment. It is sectional drawing which shows an example of the conventional bottle unit.

Hereinafter, embodiments of the present invention will be described in detail.
As shown in FIG. 1, the bottle unit 1 of the present embodiment includes a bottle container 2 and a cap 3 attached to a mouth portion 2A thereof. In the reference posture in which the mouth portion 2A faces downward, the bottle container 2 is provided with a small-diameter cylindrical mouth portion 2A for taking out the puncture repair liquid at the lower end of the body portion 2B for accommodating the puncture repair liquid.

As shown in FIGS. 1 and 2, the cap 3 includes a bottle mounting recess 4 to which the mouth portion 2A is attached, a first flow path 5, and a second flow path 6. The first flow path 5 sends the compressed air from the compressor C into the bottle container 2. The second flow path 6 sequentially takes out the puncture repair liquid and the compressed air from the bottle container 2 by sending the compressed air from the first flow path 5.

In this example, an internal screw portion (not shown) for screwing the mouth portion 2A is formed on the inner peripheral surface of the bottle mounting recess 4. A packing material 7 for sealing the lower end of the mouth portion 2A is arranged on the bottom surface 4S of the bottle mounting recess 4.

The first flow path 5 has a first opening 8 that opens in the bottle container 2. In this example, the cap 3 includes first and second boss portions 9 and 10 rising from the bottom surface 4S, and the first opening 8 opens at the upper end of the first boss portion 9.

The first flow path 5 is a vertical flow path portion 5A extending downward from the first opening 8 through the inside of the first boss portion 9, and a horizontal flow path portion 5A that bends from the vertical flow path portion 5A and extends laterally. It includes a flow path portion 5B. The cap 3 has first and second connecting portions 11 and 12 projecting from its outer surface, and the lateral flow path portion 5B opens at the tip of the first connecting portion 11.

Similarly, the second flow path 6 has a second opening 14 that opens in the bottle container 2, and in this example, the second opening 14 opens at the upper end of the second boss portion 10.

The second flow path 6 is a vertical flow path portion 6A extending downward from the second opening 14 through the inside of the second boss portion 10, and a lateral flow path portion 6A that bends from the vertical flow path portion 6A and extends laterally. It includes a flow path portion 6B. The lateral flow path portion 6B opens at the tip of the second connecting portion 12.

The first and second connecting portions 11 and 12 are, for example, hose connecting portions, and the first connecting portion 11 is connected to the compressor C via a hose. The second connecting portion 12 is connected to the tire via a hose. It should be noted that the first connecting portion 11 and the compressor C can be configured to be directly connected without using a hose.

Then, the first opening 8 and the second opening 14 are sealed by the first inner lid 15 and the second inner lid 16, respectively.

3 (A) and 3 (B) show the first inner lid 15 as a representative. The first and second inner lids 15 and 16 form a thin film that can be broken by the pressure of compressed air (for example, about 200 kPa) from the compressor C, respectively. In this example, they are fixed to the upper end surfaces of the first and second boss portions 9 and 10 by adhesion, respectively.

As the film material forming the first and second inner lids 15 and 16, various thermoplastic resins such as PP (polypropylene), PA (polyamide), PE (polyethylene) and PS (polystyrene) can be preferably adopted. .. These can be easily adhered to the upper end surfaces of the boss portions 9 and 10 by welding.

The thicknesses of the first and second inner lids 15 and 16 are appropriately set according to the film material so as to be broken by the pressure of compressed air. It is usually in the range of 0.005 to 0.2 mm, preferably in the range of 0.01 to 0.5 mm. The breaking pressure is preferably in the range of 200 to 600 kPa.

Further, on the outside of the first inner lid 15, a one-sided valve 20 is provided to prevent the puncture repair liquid from flowing back into the first flow path 5 during or after the bottle unit 1.

3A and 3B show the one-way valve 20A of the first embodiment. The one-sided valve 20A of the first embodiment is provided with a slit 22 at the tip of a body portion 21 surrounding the first inner lid 15.

In this example, the body portion 21 is, in this example, a cylindrical mounting portion 21a that is externally inserted to the upper end portion of the first boss portion 9, and a body portion that is connected to the mounting portion 21a and extends upward in a cone shape. It has a main body 21b. The mounting portion 21a is fixed to the upper end portion of the first boss portion 9 by fitting, adhesion, or the like.

Further, the upper end portion of the body portion main body 21b is divided into left and right divided portions 23, 23 by, for example, a notch-shaped slit 22 along a plane S passing through the axial center j of the body portion main body 21b. On the other hand, in the valve 20A, as shown in FIG. 4B, when a pressure from the first flow path 5 side acts, the slit 22 opens due to the pressure, and compressed air can be supplied into the bottle container 2. Further, as shown in FIG. 4A, when the pressure from the first flow path 5 side does not act, the slit 22 closes due to the elasticity of the body body 21b, and the backflow of the puncture repair liquid can be prevented. The first inner lid 15 is torn by the first inflow of compressed air from the compressor C, prior to the opening operation of the valve 20.

As shown in FIGS. 3A and 3B, in this example, in order to enhance the backflow prevention effect, each divided portion 23 has a beak-shaped lip that extends along the plane S and borders the slit 22. One piece 24 protrudes. The lip pieces 24, 24 can make surface contact when the slit 22 is closed due to the facing surfaces 24S. As a result, the infiltration of the puncture repair liquid can be suppressed. Further, the slit 22 can be reinforced and the infiltration of the puncture repair liquid due to the deformation of the slit 22 can be suppressed.

5 (A) and 5 (B) show the one-way valve 20B of the second embodiment. The one-sided valve 20B of the second embodiment includes a film-shaped seat valve 25 that closes the first opening 8 via the first inner lid 15.

The seat valve 25 is adhered to a part around the first opening 8. The region Y in FIG. 5A is the adhesive portion 25a of the seat valve 25. In this example, the seat valve 25 is adhered to a part of the upper end surface of the first boss portion 9 via the first inner lid 15. Therefore, due to the pressure from the first flow path 5 side, the non-adhesive portion 25b of the seat valve 25 rises from the upper end surface of the first boss portion 9 via the first inner lid 15. As a result, compressed air can be supplied into the bottle container 2. The first inner lid 15 is torn prior to the opening operation of the valve 20 due to the initial inflow of compressed air from the compressor C.

Further, when the pressure from the first flow path 5 side does not act, the seat valve 25 closes the first opening 8 due to its elasticity to prevent the backflow of the puncture repair liquid.

Although the particularly preferable embodiments of the present invention have been described in detail above, the present invention is not limited to the illustrated embodiments and can be modified into various embodiments.

1 Bottle unit 2 Bottle container 2A Mouth 3 Cap 5 1st flow path 6 2nd flow path 8 1st opening 14 2nd opening 15 1st inner lid 16 2nd inner lid 20 One-sided valve 21 Body 22 Slit 25b Non-adhesive part 25 Seat valve C Compressor

Claims (4)

A bottle unit for puncture repair that includes a bottle container containing a puncture repair liquid and a cap attached to the mouth of this bottle container.
The cap
A first flow path having a first opening that opens in the mouth of the bottle container and sending compressed air from the compressor into the bottle container.
It has a second opening that opens in the mouth of the bottle container, and is provided with a second flow path for sequentially taking out the puncture repair liquid and the compressed air from the bottle container by sending the compressed air.
The first opening and the second opening are sealed by a film-like first inner lid and a second inner lid that are torn by the pressure of the compressed air, respectively .
A bottle unit for puncture repair provided with a valve on the outside of the first inner lid to prevent backflow of the puncture repair liquid into the first flow path. The one-way valve, the first comprising a slit at the tip of the barrel surrounding the lid in a, for puncture repair according to claim 1, wherein passing compressed air only the slit is opened by the pressure from the first flow path side Bottle unit. The one-sided valve includes a film-shaped seat valve that closes the first opening via the first inner lid, and the seat valve is adhered to a part around the first opening. bottle unit according to claim 1 for puncture repair according passing compressed air only lifted the unbonded portion of the seat valve by the pressure from the first flow path side. The bottle unit for puncture repair according to any one of claims 1 to 3 , wherein the first and second inner lids are made of a thermoplastic resin and welded around the first and second openings.

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