Title:
SPIRAL SCREWDRIVER
Document Type and Number:
WIPO Patent Application WO/2023/145982
Kind Code:
A1
Abstract:
The present invention relates to a spiral screwdriver. In the spiral screwdriver according to the present invention, a spiral groove of a ball nut is coupled to a hexagonal nut disposed at the rear end of a moving rod constituting a ball screw, so as to prevent idling of the ball screw, and a driver tool is coupled to an assembling concave groove of the moving rod and thus can perform tightening and loosening of assembly screws. Furthermore, a ball nut housing may be pulled upward and moved by the compression force of an elastic spring and the rotation force of a steel ball by the spiral groove of a screw shaft and the ball nut, and the ball nut housing having been moved upward may be moved downward by the restoring force of the elastic spring, so that the assembly screws can be rapidly fastened or loosened by one hand. Therefore, present invention has excellent workability.
Inventors:
BAEK WOON KI (KR)
BAEK JONG HAK (KR)
BAEK JONG HAK (KR)
Application Number:
PCT/KR2022/001319
Publication Date:
August 03, 2023
Filing Date:
January 25, 2022
Export Citation:
Assignee:
BAEK WOON KI (KR)
International Classes:
B25B23/00; B25B23/16
Foreign References:
| JP3209043U | 2017-03-02 | |||
| KR101621753B1 | 2016-06-01 | |||
| CN201350611Y | 2009-11-25 | |||
| US20050247166A1 | 2005-11-10 | |||
| US3602072A | 1971-08-31 | |||
| KR20220055787A | 2022-05-04 |
Attorney, Agent or Firm:
SEONG, Nak Hoon (KR)
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