Title:
PIPE JOINT STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2010/131347
Kind Code:
A1
Abstract:
A joint structure which stably achieves high connection strength in bonding of metal pipes by an adhesive agent.
Circular conical-shaped and funnel-shaped tapered surfaces (3a, 4a) are respectively formed at ends of metal pipes (3, 4), and the tapered surface (3a) is coaxially fitted in the tapered surface (4a). The tilt angle θ of the tapered surfaces (3a, 4a) is set within the range from three to eight degrees. A projection (21a) projects from the tapered surface (3a). The distance between the tapered surfaces (3a, 4a) is set within the range from 0.05 mm to 0.3 mm, and an adhesive agent (6) is placed in the gap between the tapered surfaces.
Inventors:
KOBAYASHI KAZUMI (JP)
Application Number:
PCT/JP2009/058971
Publication Date:
November 18, 2010
Filing Date:
May 14, 2009
Export Citation:
Assignee:
KOBAYASHI KAZUMI (JP)
International Classes:
F16L13/10
Foreign References:
| JPH01113689U | 1989-07-31 | |||
| JPS53149217U | 1978-11-24 | |||
| JPS519667Y1 | 1976-03-15 | |||
| JPS53103223A | 1978-09-08 | |||
| JPH10220659A | 1998-08-21 | |||
| JPH0542876U | 1993-06-11 |
Attorney, Agent or Firm:
KASEGUMA, Tsuguhisa (JP)
Tsuguhisa Kaseguma (JP)
Tsuguhisa Kaseguma (JP)
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