Title:
ANTI-LOOSENING SPRING NUT
Document Type and Number:
WIPO Patent Application WO/2023/136411
Kind Code:
A1
Abstract:
The present invention relates to an anti-loosening spring nut which is coupled to the lower portion of a nut (20) fastened to a bolt (10) so as to prevent the nut (20) from loosening, the anti-loosening spring nut comprising: a spring female screw (120) which is wound along a male thread of the bolt (10) multiple times and has a lower locking ring (123) and an upper locking ring (121) which respectively protrude in different directions radially outward at a lower end and an upper end; and an outer casing (110) which has the shape of an enclosure in which the spring female screw (120) is accommodated, and wherein a bolt insertion hole (111a) into which the bolt (10) is inserted is formed through a bottom plate (111), and along a side surface, a plurality of pushing jaws (114) are recessedly formed at regular intervals toward the inside, wherein the spring female screw (120) is accommodated inside the outer casing (110) such that the pushing jaws (114) are disposed between the lower locking ring (123) and the upper locking ring (121), and in a state in which the nut (20) is fastened to the bolt (10), when a rotational force is applied by a standard tool in the direction in which the outer casing (110) is fastened to the bolt (10), the pushing jaws (114) contact and press the upper locking ring (121) so as to expand the outer diameter of the spring female screw (120), and the outer casing (110) and the spring female screw (120) are rotated together and fastened along the bolt (10).
Inventors:
MOON SANGYEOL (KR)
Application Number:
PCT/KR2022/010708
Publication Date:
July 20, 2023
Filing Date:
July 21, 2022
Export Citation:
Assignee:
MOON SANGYEOL (KR)
International Classes:
F16B39/14; F16B39/20
Foreign References:
| KR102289859B1 | 2021-08-13 | |||
| KR102301433B1 | 2021-09-23 | |||
| EP1760334A1 | 2007-03-07 | |||
| CN108825636A | 2018-11-16 | |||
| JP2018004067A | 2018-01-11 | |||
| KR102419470B1 | 2022-07-08 |
Attorney, Agent or Firm:
SANG-D HARMONY PATENT & LAW FIRM (KR)
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