Sealing pump-up device

• US 8,201,586 B2
• Filed: 06/13/2007
• Issued: 06/19/2012
• Est. Priority Date: 06/20/2006
• Status: Active Grant

• Current Assignee: Bridgestone Corporation
• Original Assignee: Bridgestone Corporation
• Inventors: Yoshida, Masaki, Izumoto, Ryuji, Iwasaki, Shinichi
• Primary Examiner(s): Huson, Gregory
• Assistant Examiner(s): NIESZ, JASON KAROL
• Application Number:
  US12/305,580
• Publication Number:
  US 20100224281A1
• Time in Patent Office: 1,833 Days
• Field of Search: 141/38, 141/67, 141/100, 141/105, 141/114, 141/231, 141/313, 141/329, 141/330, 141/351, 81/156
• US Class Current: 141/38
• CPC Class Codes: B29C 73/166 Devices or methods for introducing sealing compositions into articles
• CPC Class Codes: B29L 2030/00 Pneumatic or solid tyres or parts thereof conveyor belts B29L2031/7092; drive belts B29L2031/7094; fourdrinier belts B29L2031/733

Abstract

To prevent a burr, produced from the joint portion by welding between a liquid agent container and an injection unit, from interfering with a boring member inserted into a jig communication passage when the boring member is inserted into the jig communication passage to prevent the obstruction of the piercing action through a sealing member by the edge of the boring member. In the sealing pump-up device 10, a tubular inner annular member 104 is integrally formed on the inner peripheral side of a joined portion 37 in an injection unit 20 so as to surround, from an outer peripheral side, a boring member 62 held in a jig insertion hole 44, and a burr housing unit 106 consisting of an almost cylindrical space is formed between the outer annular member 28 of a liquid container 18 and the tubular inner annular member 104, whereby it is possible to guide the tip end side of a burr 110, extending from the joint portion between the outer annular member 28 and a joined portion 37 toward the inner peripheral side, from moving toward the boring member 62 side of the burr 110 by means of the tubular inner annular member 104.

Claims

1. A sealing pump-up device comprising:

a liquid container for storing a sealing agent, the liquid container also formed with an ejection port for ejecting the sealing agent;

an injection unit comprising

an air supply path, configuring a liquid supply pressure chamber in communication with the ejection port and also connected to an air supply source for supplying compressed air, and

an air-liquid supply tube connectable to a valve of a pneumatic tire;

an outer annular member provided to one or other of the liquid container or the injection unit and of a greater diameter than that of the ejection port;

an inner annular member, provided to the other of the liquid container and the injection unit, of smaller diameter that that of the outer annular member and disposed to the radial direction inside of the outer annular member; and

a burr housing unit configured between the outer annular member and the inner annular member, the liquid container being fixed to the injection unit via the outer annular member,

wherein;

the outer annular member extends from the liquid container and is welded to the injection unit;

the inner annular member extends from the injection unit; and

the burr housing unit configured between the outer annular member and the inner annular member is positioned between the welding face of the outer annular member and the injection unit, and the liquid ejection port of the liquid container.

2. A sealing pump-up device comprising:

a liquid container for storing a sealing agent, the liquid container also formed with an election port for ejecting the sealing agent;

an injection unit comprising

an air supply path, configuring a liquid supply pressure chamber in communication with the ejection port and also connected to an air supply source for supplying compressed air, and

an air-liquid supply tube connectable to a valve of a pneumatic tire;

an outer annular member provided to one or other of the liquid container or the injection unit and of a greater diameter than that of the ejection port;

an inner annular member, provided to the other of the liquid container and the injection unit, of smaller diameter that that of the outer annular member and disposed to the radial direction inside of the outer annular member; and

a burr housing unit configured between the outer annular member and the inner annular member, the liquid container being fixed to the injection unit via the outer annular member,

wherein;

the outer annular member extends from the injection unit and the outer annular member and the liquid container are welded together;

the inner annular member extends from the injection unit so as to substantially contact the liquid container; and

the burr housing unit is formed by the inner annular member.

3. A sealing pump-up device comprising:

a liquid container for storing a sealing agent, the liquid container also formed with an ejection port for ejecting the sealing agent;

an injection unit comprising

an air supply path, configuring a liquid supply pressure chamber in communication with the ejection port and also connected to an air supply source for supplying compressed air, and

an air-liquid supply tube connectable to a valve of a pneumatic tire;

an outer annular member provided to one or other of the liquid container or the injection unit and of a greater diameter than that of the ejection port;

an inner annular member, provided to the other of the liquid container and the injection unit, of smaller diameter that that of the outer annular member and disposed to the radial direction inside of the outer annular member; and

a burr housing unit configured between the outer annular member and the inner annular member, the liquid container being fixed to the injection unit via the outer annular member,

wherein;

the inner annular member extends from a main body portion of the liquid container and is inserted inside the outer annular member;

the outer annular member extends from the injection unit and an end portion of the outer annular member is welded to the main body portion of the liquid container; and

the burr housing unit is a groove formed in the outer peripheral surface of the inner annular member.