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Title:
JOINT PART STRUCTURE FOR SEGMENT
Document Type and Number:
Japanese Patent JP2013217107
Kind Code:
A
Abstract:

To provide a low cost joint part structure for segments which can be surely inserted with a small insertion force and can surely connect segments to each other.

A joint part structure for segments includes a male-side joint member 3 which projects from the end surface 2a of a joint part of one segment, and a female-side joint member 4 which is fixed to a joint part of the other segment. The female-side joint member 4 includes a hollow outer shell part 7 which is formed with an opening, into which the male-side joint member 3 is inserted, on the male side, and a pair of holding members 10, 10 which are arranged in the outer shell part 7 to hold the inserted male-side joint member 3. The holding member 10 has a holding part 11 and a reaction force receiving surface part 12 which abuts on the inner surface of the outer shell part 7, and is formed so that, when the male-side joint member 3 is held, a position in the insertion/extraction direction of the holding member 11 is arranged at the deeper side in the insertion direction than a position in the insertion/extraction direction of the reaction force receiving surface part 12.


Inventors:
OZEKI MUNETAKA
KEMURIYAMA CHIKASHI
ODAN TAKASHI
Application Number:
JP2012088927A
Publication Date:
October 24, 2013
Filing Date:
April 10, 2012
Export Citation:
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Assignee:
NIPPON HUME CORP
International Classes:
E21D11/04
Domestic Patent References:
JPH09112190A1997-04-28
JPH07197789A1995-08-01
JP2004332209A2004-11-25
JPH11294085A1999-10-26
JP2003247397A2003-09-05
Attorney, Agent or Firm:
Masao Tanaka