Title:
締結体構造
Document Type and Number:
Japanese Patent JP5099548
Kind Code:
B2
Abstract:
A fastening body structure (1) having a screw member (4) which uses a module screw (2) having a countersunk head and also uses, together with the module screw (2), a washer (3) made of a shape memory alloy. With this structure, the washer (3) does not expand even if subjected to large fastening force in fastening of a part to be fastened and in which the washer (3) can be easily removed when the screw fastening is released. The fastening body structure (1) fastens and fixes a desired part to the installation section (20) by using the screw member (4) having the module screw (2) and the washer (3) made of a shape memory alloy. The module screw (2) has a male screw (2d) used as a pair with a female screw thread section formed in the installation section (20), and also has the countersunk head. The washer (3) made of a shape memory alloy has an inner diameter corresponding to the module screw (2). An irregular surface section (5) is formed on a slope surface (2b) at the lower part of the head (2a) of the module screw (2) or on that surface of the washer (3) makes contact with the screw (2).
Inventors:
Kazuya Yoshida
Masahiro Nakanishi
Masahiro Nakanishi
Application Number:
JP2007312827A
Publication Date:
December 19, 2012
Filing Date:
December 03, 2007
Export Citation:
Assignee:
Tokai University
International Classes:
F16B35/00; F16B43/00
Domestic Patent References:
| JP2007046779A | ||||
| JP2006090348A | ||||
| JP2009014123A |
Attorney, Agent or Firm:
Isono Dozo
Etsuo Tada
Etsuo Tada