Title:
動力工具
Document Type and Number:
Japanese Patent JP5741644
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a power tool suppressing the permanent deformation of an elastic member and maintaining a vibration reducing effect over a long period of time.SOLUTION: A rubber ring 25 serving as an elastic member is disposed between a wheel washer 22 mounted to a spindle 17, and a base 12a of a diamond grinding wheel 12, and these members are fixed with a lock nut 27 screw-connected to the tip of the spindle 17. Vibration received by the diamond grinding wheel 12 in grinding work is thereby absorbed by the rubber ring 25. A mounting hole 12c of the base 12a is loosely fitted to a boss 24 of the wheel washer 22, and a spring pin 28 with both ends supported by the wheel washer 22 and a portion of a presser plate 26 of the lock nut 27 is inserted in a loosely fitted state through an insertion hole 12d of the base 12a and an insertion hole 25a of the rubber ring 25.
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Inventors:
Takashi Kawamata
Kobayashi Shigekichi
Kobayashi Shigekichi
Application Number:
JP2013166363A
Publication Date:
July 01, 2015
Filing Date:
August 09, 2013
Export Citation:
Assignee:
Hitachi Koki Co., Ltd.
International Classes:
B25F5/00; B24B23/02; B24B45/00
Domestic Patent References:
| JP51153893U | ||||
| JP2010069604A |
Foreign References:
| US20090156107 | ||||
| US20030114092 | ||||
| US5733183 | ||||
| US3613472 | ||||
| US3392616 |