Title:
GRINDER HAVING ONE-TOUCH COUPLER AND STOPPER
Document Type and Number:
WIPO Patent Application WO/2022/019650
Kind Code:
A1
Abstract:
The present invention is characterized by comprising: a power transfer unit fastened to a rotating shaft of a grinder so as to transfer rotational power; a cylindrical seating body seated on the upper portion of a seating bushing of the power transfer unit so as to facilitate fastening to a grinder wheel; a wing fastening unit having multiple wings formed thereon and rotated such that the grinder wheel is fixed to the outer peripheral edge of the upper portion of the seating body and is seated on the seating body; a dish-shaped elastic seating washer seated between the seating body and the wing fastening unit such that the grinder wheel is elastically seated on the rotating shaft; and a power stopper seated in a through-hole extending through one side of the grinder wheel so as to be attached to/detached from a stopper connecting shaft of the power transfer unit, thereby blocking rotation of the power transfer unit. The present invention is advantageous in that the grinder and the grinder wheel can be fastened with little force quickly and easily; the grinder wheel can be easily fastened to the grinder by using rotational power of the grinder wheel, even without a fastening nut and a tool; rotational power of the grinder and rotational power of the grinder wheel rotate in opposite directions, thereby preventing detachment and guaranteeing safe use; the grinder wheel is elastically seated on the rotating shaft such that same are fully forced against each other, thereby safely fastening the grinder wheel to the grinder; and the grinder wheel is held by hand and is constrained thereby during a grinder operation such that, even without separately blocking electric power supply, the grinder operation can be performed while blocking the grinder operation conveniently.
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Inventors:
KIM JAE HYUN (KR)
PARK YOUNG WON (KR)
PARK YOUNG WON (KR)
Application Number:
PCT/KR2021/009417
Publication Date:
January 27, 2022
Filing Date:
July 21, 2021
Export Citation:
Assignee:
BEST TOOL KOREA CO LTD (KR)
International Classes:
B24B23/02; B24B23/00; B24B45/00
Foreign References:
| KR20110087761A | 2011-08-03 | |||
| KR20190027506A | 2019-03-15 | |||
| JPH03113749U | 1991-11-21 | |||
| KR101934511B1 | 2019-01-02 | |||
| KR20140002001U | 2014-04-04 | |||
| KR102178942B1 | 2020-11-13 |
Attorney, Agent or Firm:
KIM, Seong Dae (KR)
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