Title:
ONE-WAY BOLT FASTENING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/172510
Kind Code:
A1
Abstract:
The present invention relates to a one-way bolt fastening device which allows a user to easily fasten a bolt and a nut by working only one side of a front side when a rear side of a member to be fastened is closed and a hand or a tool cannot be inserted, and which allows the user to simply fasten the bolt and the nut from one side of the front side of the member to be fastened without using a separate and dedicated one-way bolt fastening tool. The one-way bolt fastening device according to the present invention comprises: a bolt (100) having a head (110) inserted into a front side (12) of a fastening hole (11) formed in a member (10) to be fastened and protruding to a back side (13) and a male thread (120) protruding to the front side (12) in a state of being inserted in the fastening hole (11); an expanding member (200) formed to have the same diameter as that of the head (110) of the bolt (100) and brought into close contact between the head (110) of the bolt (100) and the back side (13) of the member (10) to be fastened while expanding during fastening in a state of being expandably inserted into the male thread (120); a wedge member (300) expanding the expanding member (200) while being inserted into an inner periphery of the expanding member (200) during fastening in a state of being inserted into the male thread (120) of the bolt (100); and a nut (400) provided with a female thread (410) fastened to the male thread (120) of the bolt (100) and brought into close contact with the front side (12) of the fastened member (10) while moving the wedge member (300) toward the expanding member (200) during fastening.
More Like This:
Inventors:
LEE WON GI (KR)
Application Number:
PCT/KR2018/016281
Publication Date:
September 12, 2019
Filing Date:
December 20, 2018
Export Citation:
Assignee:
LEE WON GI (KR)
International Classes:
F16B5/02; F16B35/04
Foreign References:
| JP2017082845A | 2017-05-18 | |||
| KR20070024959A | 2007-03-08 | |||
| KR20040057118A | 2004-07-02 | |||
| KR20120132659A | 2012-12-07 | |||
| KR19990024963U | 1999-07-05 |
Attorney, Agent or Firm:
LEE, Sun Haeng et al. (KR)
Download PDF: