Integrated flat tire repair kit

Patent metadata

Field	Value
Publication number	US-9415751-B2
Application number	US-201214370919-A
Country	US
Kind code	B2
Filing date	Dec 18, 2012
Priority date	Feb 3, 2012
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

An extraction cap of an integrated flat tire repair kit is provided with; an air-dedicated flow passage that normally connects the inlet mouth portion for taking compressed air to the outlet mouth portion without passing through the bottle container; and a puncture repair-dedicated flow passage that is connected to the inlet mouth portion instead of the air-dedicated flow passage by switching means. The puncture repair-dedicated flow passage comprises a first flow passage portion that connects the inlet mouth portion to the inside of the bottle container and a second flow passage portion that connects the inside of the bottle container to the outlet mouth portion.

First claim

What is claimed is:

1. An integrated flat tire repair kit comprising:
a compressor housed in a housing case and configured to discharge compressed air; and
a bottle unit housed in the housing case and comprising an extraction cap secured to a mouth portion of a bottle container storing a puncture repair fluid,
wherein the extraction cap comprises:
an inlet mouth portion configured to take the compressed air from the compressor into the extraction cap;
an outlet mouth portion configured to discharge the taken compressed air or both of the compressed air and the puncture repair fluid to outside the extraction cap;
an air-dedicated flow passage configured to be coupled to the inlet mouth portion in normal time so as to allow the inlet mouth portion to communicate with the outlet mouth portion without passing through an interior of the bottle container;
a puncture repair-dedicated flow passage comprising a first flow passage portion and a second flow passage portion, the first flow passage portion being configured to be coupled to the inlet mouth portion instead of the flow passage dedicated to air by a switch so as to allow the inlet mouth portion to communicate with the interior of the bottle container, the second flow passage portion being configured to allow the interior of the bottle container to communicate with the outlet mouth portion;
a first on-off valve interposed in the second flow passage portion and configured to close the second flow passage portion in the normal time;
the switch, wherein the switch comprises a switching cap and is configured to be operated upon securing the switching cap to the housing case so as to allow a coupling destination of the inlet mouth portion to be switched from the air-dedicated flow passage to the puncture repair-dedicated flow passage, and the switch is configured to release the first on-off valve so as to open the second flow passage portion; and
a cap body integrally comprising:
a barrel portion comprising a tubular portion whose upper end is secured to the mouth portion of the bottle container, and a bottom portion configured to close a lower end of the tubular portion;
a support portion extending upward from the bottom portion and coaxially with the tubular portion so as to reach the interior of the bottle container; and
a mobile body externally inserted in and held by the support portion so as to be vertically movable relative to the support portion,

wherein the first on-off valve is disposed in the mobile body so as to be integrally movable with the mobile body, and
wherein an upward movement of the mobile body allows a coupling destination switching from the air-dedicated flow passage to the puncture repair-dedicated flow passage, and allows release of the first on-off valve.

2. The integrated flat tire repair kit according to claim 1 ,
wherein the housing case comprises a securing recessed portion disposed on a bottom portion of the housing case, and the switch is configured to be operated upon securing the switching cap to the securing recessed portion.

3. The integrated flat tire repair kit according to claim 1 ,
wherein an inner wall surface of the tubular portion comprises a large diameter wall portion having a large inner diameter, and a small diameter wall portion having a small inner diameter and being continuous with a lower side of the large diameter wall portion with a step portion interposed therebetween,
wherein the mobile body comprises a piston portion configured to be airtightly contacted with the small diameter wall portion, and a sheath pipe portion extending from the piston portion and coaxially with the piston portion,
wherein the piston portion comprises a circumferential groove shaped recessed portion disposed on an outer peripheral surface of the piston portion, and a through hole portion disposed below the recessed portion and configured to permit communication between an outer peripheral surface side and an inner peripheral surface side of the piston portion,
wherein the air-dedicated flow passage is defined by the recessed portion, and
wherein the first flow passage portion of the puncture repair-dedicated flow passage comprises the through hole portion and a first clearance portion between the sheath pipe portion and the support portion, and the second flow passage portion of the puncture repair-dedicated flow passage comprises the recessed portion and a second clearance portion between the piston portion and the large diameter wall portion.

4. The integrated flat tire repair kit according to claim 1 ,
wherein the switch comprises a projected piece projectedly extending downward from a lower end of the mobile body and passing through the bottom portion, and upon securing the switching cap to the housing case, the switching cap is configured to contact with a lower end of the projected piece so as to push up the mobile body.

5. The integrated flat tire repair kit according to claim 3 ,
wherein the first on-off valve comprises an upper seal ring and a lower seal ring disposed on an outer peripheral surface of the piston portion and respectively located above and below the recessed portion, and
wherein in the normal time, the upper seal ring and the lower seal ring are brought into close contact with the small diameter wall portion so as to close the second flow passage portion, and the upward movement of the mobile body allows the upper seal ring to be opposed to the large diameter wall portion so as to open the second flow passage portion.

6. The integrated flat tire repair kit according to claim 3 ,
wherein an upper end of the support portion and an upper end of the sheath pipe portion are located above a fluid surface of the puncture repair fluid.

7. The integrated flat tire repair kit according to claim 3 ,
wherein a second on-off valve configured to close the first flow passage portion in the normal time is disposed at an upper end portion of the support portion, and the second on-off valve is configured to open the first flow passage portion upon the upward movement of the mobile body.

8. The integrated flat tire repair kit according to claim 3 ,
wherein the switch comprises a projected piece projectedly extending downward from a lower end of the mobile body and passing through the bottom portion, and upon securing the switching cap to the housing case, the switching cap is configured to contact with a lower end of the projected piece so as to push up the mobile body.

9. The integrated flat tire repair kit according to claim 4 ,
wherein the first on-off valve comprises an upper seal ring and a lower seal ring disposed on an outer peripheral surface of the piston portion and respectively located above and below the recessed portion, and
wherein in the normal time, the upper seal ring and the lower seal ring are brought into close contact with the small diameter wall portion so as to close the second flow passage portion, and the upward movement of the mobile body allows the upper seal ring to be opposed to the large diameter wall portion so as to open the second flow passage portion.

10. The integrated flat tire repair kit according to claim 4 ,
wherein an upper end of the support portion and an upper end of the sheath pipe portion are located above a fluid surface of the puncture repair fluid.

11. The integrated flat tire repair kit according to claim 5 ,
wherein an upper end of the support portion and an upper end of the sheath pipe portion are located above a fluid surface of the puncture repair fluid.

12. The integrated flat tire repair kit according to claim 4 ,
wherein a second on-off valve configured to close the first flow passage portion in the

Assignees

• Sumitomo Rubber Ind

Inventors

• Taniguchi Norio
• Kono Tsutomu

Classifications

• B29C73/166 Primary

  Devices or methods for introducing sealing compositions into articles · CPC title

• B29L2030/00

  Pneumatic or solid tyres or parts thereof {(conveyor belts B29L2031/7092; drive belts B29L2031/7094; fourdrinier belts B29L2031/733)} · CPC title

• B60S5/043 Primary

  characterised by the inflation control means or the drive of the air pressure system · CPC title

• B29C73/025

  fed under pressure · CPC title