Title:
POLISHING PAD AND GRINDER HOLDER FOR MOUNTING POLISHING PAD
Document Type and Number:
WIPO Patent Application WO/2022/239898
Kind Code:
A1
Abstract:
According to the present invention, a polishing pad and a grinder holder for mounting a polishing pad are disclosed. In detail, the polishing pad comprises: a polishing member which is formed in a circular disc shape and to which a polishing agent is applied; and a polishing wheel which is coupled to the center of the polishing member to support the polishing member, and has an installation hole formed in the center that can be attached to/detached from a rotary shaft of a grinder, wherein the inner circumferential surface of the installation hole has arc portions that are formed in arc shapes and arranged along the circumference at constant intervals and chord portions that are formed in linear shapes and formed among the arc portions at constant intervals. The grinder holder for mounting the polishing pad comprises: a main body of which the cross-section has a shape corresponding to the installation hole so as to be fitted in the installation hole, and which has a fixing hole formed in the center and has a spring groove formed in the upper surface; a locking body having a shape corresponding to the main body, an assembling hole formed in the center, and a locking hole formed in one side; a compression spring inserted into the spring groove; a stopper which is provided at the upper end of the compression spring to be elastically supported and protrudes from the upper surface of the main body; a locking release button which is inserted into the locking hole to be moved up and down; and a fixing nut which has a hollow shape and is fastened with the rotary shaft while rotatably being inserted and passing through the assembling hole and the fixing hole and then is coupled to the main body. When the locking body is rotated in one direction, an edge of the locking body is caught by the edge of the installation hole, and the upper end of the stopper is caught while entering the locking hole after pushing the locking release button. Thus, rotation of the locking body can be prevented.
Inventors:
CHAE SSEUNG DUK (KR)
Application Number:
PCT/KR2021/006564
Publication Date:
November 17, 2022
Filing Date:
May 26, 2021
Export Citation:
Assignee:
CHAE SSEUNG DUK (KR)
International Classes:
B24B23/02; B24B45/00
Domestic Patent References:
| WO1998043779A1 | 1998-10-08 |
Foreign References:
| KR20200024384A | 2020-03-09 | |||
| KR20200048046A | 2020-05-08 | |||
| US20150090093A1 | 2015-04-02 | |||
| KR200382743Y1 | 2005-04-22 |
Attorney, Agent or Firm:
CHOI, Sung Keun (KR)
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