Title:
BOLT STRUCTURE HAVING LOCKING DEVICE BUILT IN
Document Type and Number:
WIPO Patent Application WO/2019/017648
Kind Code:
A1
Abstract:
Disclosed is a bolt structure having a locking device built in. A bolt structure having a locking device built in according to the present invention is provided with: a base bolt, one end of which is inserted into a hole that is formed by overlapping a fixing structure and an object to be fixed; a core bolt which is screw-fastened so as to be capable of moving back and forth through the center along the longitudinal direction of the base bolt; a nut which is fastened to an end of the base bolt inserted into and protruding from the hole, and is thereby fastened to the base bolt so that the state in which the fixing structure and the object to be fixed overlap is maintained; a locking member which selectively presses the outer surface of the nut according to the back-and-forth movement of the core bolt, thereby preventing the separation of the base bolt; and a restriction part which is screw-fastened so as to be capable of moving back-and-forth through the center along the longitudinal direction of the base bolt while facing the core bolt, and is in contact with the end of the core bolt to restrict the back-and-forth movement of same.
Inventors:
KIM YOUNG KWON (KR)
Application Number:
PCT/KR2018/007909
Publication Date:
January 24, 2019
Filing Date:
July 12, 2018
Export Citation:
Assignee:
CORE BOLT CO LTD (KR)
International Classes:
F16B39/28; F16B35/04
Foreign References:
| KR19980042287U | 1998-09-25 | |||
| KR20010017026A | 2001-03-05 | |||
| JP2005249084A | 2005-09-15 | |||
| JP2011012693A | 2011-01-20 | |||
| JP2014013071A | 2014-01-23 |
Attorney, Agent or Firm:
DONGCHEON PATENT FIRM (KR)
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