Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SAFETY LOCK NUT
Document Type and Number:
WIPO Patent Application WO/2011/090234
Kind Code:
A1
Abstract:
The present invention relates to a safety lock nut for preventing a nut fastened to a threaded bolt shaft from arbitrarily loosening therefrom, and particularly, to a safety lock nut capable of easily being fastened to or loosened from a threaded bolt shaft that is fastened therethrough without damaging the threaded bolt shaft when the need for fastening or loosening the nut arises, and capable of being firmly fastened to a threaded shaft so as to not arbitrarily loosen from the threaded shaft due to external vibrations. The safety lock nut comprises a nut and coil spring. The nut comprises: a hexagonal nut portion including a threaded hole in a center thereof into which a threaded shaft can be fastened; a round nut portion integrally extending from the top surface of the hexagonal nut portion and including a recessed portion therein having an inner diameter that is comparatively greater than the threaded hole; a winding portion including a stepped surface on the top surface of the recessed portion; and a guiding long hole formed in a bottom side of the round nut portion so as to communicate with the recessed portion. The coil spring comprises: a coil portion having built-in tensioning force and capable of being inserted into the recessed portion of the round nut portion; a top coil portion extending from the top end of the coil portion to be fixed and coupled by being wound by means of a winding surface while seated on the stepped surface; and a bent end portion at the bottom end of the coil portion that is outwardly bent so as to pass through the guiding long hole.

Inventors:
IM, Young Woo (917dong, 1004ho Dawon Hyosung Apt,Chong-suk maeul, 986th Dayul-ri, Gyoha-ue, paju-Si Gyeonggi-do 413-832, 413-832, KR)
Application Number:
KR2010/002440
Publication Date:
July 28, 2011
Filing Date:
April 20, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
IMJIN S.T CO.,LTD (423-7, Maekgeum-dongpaju-Si, Gyeonggi-do 413-060, 413-060, KR)
주식회사 임진에스티 (경기도 파주시 맥금동 423-7, 413-060 Gyeonggi-do, 413-060, KR)
International Classes:
F16B39/12; F16B37/12; F16B39/02
Domestic Patent References:
WO2005103512A1
Foreign References:
KR20070031377A
KR100398934B1
Attorney, Agent or Firm:
WHOANG, Won Taik (#302 Baek-Ak Bldg, 828-52Yeoksam-dong,Gangnam-gu, Seoul 135-080, 135-080, KR)
Download PDF:
Claims: