Title:
FASTENER
Document Type and Number:
Japanese Patent JP2018071617
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a novel fastener which is not largely elongated in a length direction of a shaft member while having a torque limit function so as to prevent the breakage or the like of a fastening member and a fastened member caused by excessive torque.SOLUTION: A fastener comprises a shaft 2, one and the other fastening members 3, 4 for fastening a fastened object, and a handle 10 having a cover part 10a for covering an external periphery of the other fastening members 4, and a rotation operation part 10b having a length in a radial direction of the shaft 2. A plurality of engagement recesses 4b are formed at an external peripheral face of the other fastening member 4, and an engagement member 11 which is engaged with the engagement recesses 4b at its tip, moved to a direction in which the engagement member separates from the engagement recesses 4b, or elastically deformed at its tip side when a rotation force of the other fastening member 4 reaches prescribed torque, and released in an engagement state with the engagement recesses 4b is arranged in the rotation operation part 10b.SELECTED DRAWING: Figure 2
Inventors:
KONDO YUTAKA
Application Number:
JP2016210476A
Publication Date:
May 10, 2018
Filing Date:
October 27, 2016
Export Citation:
Assignee:
GOKISO GIKEN LTD
International Classes:
F16B31/02; B62K25/02
Domestic Patent References:
| JPH0710537U | 1995-02-14 | |||
| JP2012025393A | 2012-02-09 | |||
| JP2002193179A | 2002-07-10 | |||
| JP2005226789A | 2005-08-25 |
Foreign References:
| US20090102276A1 | 2009-04-23 |
Attorney, Agent or Firm:
Inaba Tomoe