Grinder with easily replacing grinding tool

Details Grinder with easily replacing grinding tool Grinder with easily replacing grinding tool

2007-12-03

2009-06-09

Rose, Robert (Department: 3727)

Abrading

Machine

Rotary tool

C451S359000

Reexamination Certificate

active

07544116

ABSTRACT:
A grinder has a main body formed with a shaft chamber and a rotary shaft rotatably mounted in the shaft chamber. One end of the rotary shaft outward protrudes from the main body for installing a grinding tool thereon. A passage and a slide way are formed in the main body. One end of the passage communicates with the shaft chamber. A front end of the slide way communicates with the passage. A chucking button is disposed in the passage. A link is movably arranged in the slide way. An activation switch is mounted on the main body for controlling the operation of the grinder. When the grinder is not activated, the chucking button can be pressed to chuck the rotary shaft for easy replacement of a grinding tool. When the activation switch is switched on to activate the grinder, the link is chucked in the chucking button to prevent the chucking button from being pressed. Accordingly, when the grinder operates, the chucking button cannot chuck the rotary shaft so as to ensure safety. When the rotary shaft is chucked by the chucking button, the activation switch cannot be switched on.

REFERENCES:
patent: 3129534 (1964-04-01), Miyabayashi
patent: 4103460 (1978-08-01), Law
patent: 5718621 (1998-02-01), Turley
patent: 6752704 (2004-06-01), Lin
patent: 6752705 (2004-06-01), Lin
patent: 6887141 (2005-05-01), Lin
patent: 7014548 (2006-03-01), Lin
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patent: 7175513 (2007-02-01), Folin
patent: 7179156 (2007-02-01), Lin
patent: 7252580 (2007-08-01), Lin
patent: 7311588 (2007-12-01), Lin et al.
patent: 2007/0141967 (2007-06-01), Kobayashi

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