Title:
FEMALE THREADED BODY, AND THREADED BODY FASTENING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2016/093306
Kind Code:
A1
Abstract:
A female threaded body (100) is provided with: a female threaded helical structure (114) formed on the inner circumferential surface of a hole (106a) in a cylindrical member (106); a contact surface (110a) formed on an axial direction end face of said cylindrical member (106); and a reverse rotation-preventing member (160), which has a protruding section (168) that is disposed and fixed on said contact surface (110a) and protrudes radially inward toward the rotation axis and in which the tip of said protruding section (168) configures an engaging edge (168a) that forms a continuous or discontinuous helix of a different lead angle and/or lead direction from the lead angle and/or lead direction of the female threaded helical structure (114). Moreover, when screwed together with a male thread (10), the engaging edge (168a) is able to elastically deform radially outward to allow relative rotation of said male thread (10) and said female threaded helical structure (114) in one direction and lock relative rotation in the other direction. As a result, a high quality single female threaded body (100) having two kinds of female thread structures of different lead angles and/or lead directions is mass-produced.
Inventors:
MICHIWAKI HIROSHI (JP)
Application Number:
PCT/JP2015/084627
Publication Date:
June 16, 2016
Filing Date:
December 10, 2015
Export Citation:
Assignee:
NEJILAW INC (JP)
International Classes:
F16B39/284; F16B35/00; F16B37/00; F16B39/286
Foreign References:
| JP5406168B2 | 2014-02-05 | |||
| JP3102501U | 2004-07-08 |
Attorney, Agent or Firm:
SAHARA Masashi et al. (JP)
Sawara Masafumi (JP)
Sawara Masafumi (JP)
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