Title:
PIPE OF HARD THERMOPLASTIC RESIN, PIPE JOINT STRUCTURE AND METHODS OF MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/1999/034142
Kind Code:
A1
Abstract:
A pneumatic joint (1) comprising a pipe body (2) of a hard thermoplastic resin, and an open ring (3) of a hard thermoplastic resin fitted in the pipe body from one opening thereof; the open ring being provided with a slip-off preventing projection (13) on an outer circumferential surface of a fitted portion thereof; the pipe body (2) being provided with an annular seal (9) of an elastic resin formed firmly on an inner circumferential surface thereof, a fitting inlet-carrying pipe (7) of a hard rigid resin disposed so as to coaxially abut on one opened side portion of the pipe body (2) and having a recess (10), with which the slip-off preventing projection (13) of the open ring (3) is engaged, in an inner circumferential surface of the abutted portion thereof, and an annular connecting portion (8) of a hard synthetic resin molded on an outer circumferential surface of the abutted portion of the inlet pipe firmly, and adapted to connect the fitting inlet-carrying pipe (7) to the pipe body (2).
Inventors:
NOZATO NOBUHIRO (JP)
INAGAKI ATSUSHI (JP)
MATSUMOTO SHINICHI (JP)
KOMADA HAJIME (JP)
MUTSUDA MITSUTERU (JP)
HIRAISHI MASANORI (JP)
INAGAKI ATSUSHI (JP)
MATSUMOTO SHINICHI (JP)
KOMADA HAJIME (JP)
MUTSUDA MITSUTERU (JP)
HIRAISHI MASANORI (JP)
Application Number:
PCT/JP1998/005929
Publication Date:
July 08, 1999
Filing Date:
December 24, 1998
Export Citation:
Assignee:
MIKUNI PLASTICS CO LTD (JP)
DAICEL HUELS LTD (JP)
DAICEL CHEM (JP)
NOZATO NOBUHIRO (JP)
INAGAKI ATSUSHI (JP)
MATSUMOTO SHINICHI (JP)
KOMADA HAJIME (JP)
MUTSUDA MITSUTERU (JP)
HIRAISHI MASANORI (JP)
DAICEL HUELS LTD (JP)
DAICEL CHEM (JP)
NOZATO NOBUHIRO (JP)
INAGAKI ATSUSHI (JP)
MATSUMOTO SHINICHI (JP)
KOMADA HAJIME (JP)
MUTSUDA MITSUTERU (JP)
HIRAISHI MASANORI (JP)
International Classes:
B29C45/16; F16L19/06; F16L19/065; F16L21/03; F16L31/02; F16L37/091; B29C45/14; (IPC1-7): F16L11/04; B29C45/14; F16L37/00
Foreign References:
| JPS61215881A | 1986-09-25 | |||
| JPS55149479A | 1980-11-20 | |||
| JPH0847981A | 1996-02-20 | |||
| JPS58219255A | 1983-12-20 | |||
| JPH07317972A | 1995-12-08 | |||
| JPS6221244A | 1987-01-29 | |||
| JPH01149854A | 1989-06-12 | |||
| JPH02150439A | 1990-06-08 | |||
| JPH03133631A | 1991-06-06 | |||
| JPH03138144A | 1991-06-12 | |||
| JPH0530182A | 1993-02-05 | |||
| JPH0711013A | 1995-01-13 | |||
| JPH0818412A | 1996-01-19 |
Other References:
See also references of EP 1045183A4
Attorney, Agent or Firm:
Nogawa, Shintaro (Nishitenma 5-chome Kita-Ku Osaka-shi Osaka, JP)
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