Title:
MOUTHPIECE
Document Type and Number:
WIPO Patent Application WO/2018/225528
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a mouthpiece capable of eliminating the possibility of leakage of compressed air into the atmosphere by having a configuration where an operation valve is opened after an airtight state is obtained. The mouthpiece is provided with: a mouthpiece body (2) which includes a cylindrical member connected to, at one end side thereof, an air supply device and to a tire valve (50) at the other end side; annular projected part (11) that is formed at a required position on the outer circumference of the mouthpiece body; a tire valve insertion hole (3) that is disposed at the tire valve-side leading end of the mouthpiece body (2); an O-ring (4) that is provided inward on the air supply device side of the tire valve insertion hole (3); a backup ring (5) that presses the O ring (4) from the air supply device side of the O ring (4); an operation body (7) having a substantially projected shape which is a columnar shape having a tapered leading end inserted in a backup ring center circle (6); openings (5a, 7a) that are respectively formed in the backup ring (5) and the operation body (7) so as to serve as passages for compressed air; an open valve adjusting spring (8) that is disposed between the operation body (7) and the backup ring (5); and an operation valve (9) that is built-in on the air supply device side of the operation body (7).
Inventors:
EMI HISAO (JP)
Application Number:
PCT/JP2018/020073
Publication Date:
December 13, 2018
Filing Date:
May 24, 2018
Export Citation:
Assignee:
ORIGINALBOX CO LTD (JP)
International Classes:
F04B33/00
Foreign References:
| JPH11508518A | 1999-07-27 | |||
| JP6081644B1 | 2017-02-15 | |||
| US20120125446A1 | 2012-05-24 |
Attorney, Agent or Firm:
SEVEN COLOR PATENT FIRM (JP)
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