Title:
MAGNET HOLDER AND MAGNETIC DRILL COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/169029
Kind Code:
A1
Abstract:
The present invention provides a magnet holder which can be moved easily even after release. Provided in one embodiment is the magnet holder comprising: a fixed-type permanent magnet extended in one direction; a rotating-type permanent magnet extended in the one direction and having both ends rotatably fixed; a first yoke and a second yoke covering both lateral surfaces of the fixed-type permanent magnet and the rotating-type permanent magnet, and extended in the vertical direction; and coils which are respectively wound around the first and second yokes. On a cross-section perpendicular to the one direction, the first yoke comes into contact with the N pole of the fixed-type permanent magnet, the second yoke comes into contact with the S pole of the fixed-type permanent magnet, and the coils, the rotating-type permanent magnet and the fixed-type permanent magnet are positioned consecutively along the first and second yokes from an attachment surface of an object to be attached to which the first and second yokes are attached.
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Inventors:
SONG NO-SOO (KR)
Application Number:
PCT/KR2021/005394
Publication Date:
August 11, 2022
Filing Date:
April 28, 2021
Export Citation:
Assignee:
HOSAN TECH CO LTD (KR)
International Classes:
B23Q3/154; B23B45/02; F16B1/00
Foreign References:
| KR20190031123A | 2019-03-25 | |||
| US9452521B2 | 2016-09-27 | |||
| KR102209820B1 | 2021-01-29 | |||
| US20200227191A1 | 2020-07-16 | |||
| JP2007208024A | 2007-08-16 | |||
| KR20210005394A | 2021-01-14 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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