Title:
CAP UNIT
Document Type and Number:
WIPO Patent Application WO/2011/111463
Kind Code:
A1
Abstract:
Disclosed is a cap unit wherein safety is increased by preventing a reversed flow of a puncture sealing agent. A cap main body (33) comprises an air flow passage (31) consisting of a longitudinal flow passage (31A) extending downward from an air passage upper opening (31a), a lateral flow passage (31B) laterally extending from an air intake port (31b), and a connecting flow passage (31C) connecting therebetween. The air flow passage (31) is provided with a reversed flow preventing means (22). The cap main body (33) is provided with a longitudinal hole (40) consisting of first to fourth longitudinal hole portions (40A to 40D) which have inner diameters increasing downwardly from the upper end in a stepwise manner , and the first to third longitudinal hole portions (40A to 40C) form the longitudinal flow passage (31A). A valve seat case (42) provided with the connecting flow passage (31C) is inserted in the fourth longitudinal hole portion (40D). The reversed flow preventing means (22) is provided with a valve seat (23) arranged at the upper end of the valve seat case (42), a spherical valve (24) loosely inserted in the third longitudinal hole portion (40C), and a biasing spring (25) arranged in the second longitudinal hole portion (40B). The valve seat case (42) is provided with a means (44) for preventing dropping from the fourth longitudinal hole portion (40D).
Inventors:
NAKAO Yukio (6-9, Wakinohama-cho 3-chome, Chuo-ku, Kobe-sh, Hyogo 72, 〒6510072, JP)
Application Number:
JP2011/052773
Publication Date:
September 15, 2011
Filing Date:
February 09, 2011
Export Citation:
Assignee:
SUMITOMO RUBBER INDUSTRIES,LTD. (6-9 Wakinohama-cho 3-chome, Chuo-ku Kobe-sh, Hyogo 72, 〒6510072, JP)
住友ゴム工業株式会社 (〒72 兵庫県神戸市中央区脇浜町３丁目６番９号 Hyogo, 〒6510072, JP)
住友ゴム工業株式会社 (〒72 兵庫県神戸市中央区脇浜町３丁目６番９号 Hyogo, 〒6510072, JP)
International Classes:
B29C73/02; B29C73/24
Attorney, Agent or Firm:
SUMITOMO Shintaro (2-26, Nishinakajima 4-chomeYodogawa-k, Osaka-shi Osaka 11, 〒5320011, JP)
Claims: