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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2018/070719
Kind Code:
The present invention relates to a bolt and nut loosening prevention device and, particularly, to a bolt and nut loosening prevention device, preventing the bolt, which couples parts, from loosening even if vibration and shock are generated from the outside or from the device itself in a state in which the parts of a strongly-vibrating engine or industrial machine and the like are fastened. The present invention includes the loosening prevention device for preventing a nut thread-fastened to a threaded shaft of the bolt from loosening when the bolt and the nut are fastened such that the nut can be thread-fastened to the threaded shaft of the bolt, wherein the loosening prevention device comprises: a covering cap, which has an accommodating chamber therein with respect to the bottom surface thereof such that the threaded shaft to which the nut is thread-fastened can be covered with the same, and which has a lower end surface placed on the upper surface of the nut; and a set screw thread-fastened to the threaded shaft from the upper surface of the covering cap so as to enable the threaded shaft and the covering cap to be integrally connected.

MOON, Sang Ryul (147-10, Suhan-gilYecheon-gun, Gyeongsangbuk-do, 36807, KR)
Application Number:
Publication Date:
April 19, 2018
Filing Date:
September 30, 2017
Export Citation:
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JUNSAN ENTERPRISE CO.,LTD (25 Anmi 3-gil, Samdong-myon Ulju-gun, Ulsan, 44956, KR)
International Classes:
F16B39/08; F16B1/00; F16B33/02
Attorney, Agent or Firm:
SEO, Dongwon (RM. 508, Hyecheon Bldg. Gangnam-daero 354Gangnam-gu, Seoul, 06242, KR)
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