Title:
ELECTRIC DRILL
Document Type and Number:
Japanese Patent JP2013180360
Kind Code:
A
Abstract:
To stop processing when a motor reaches a given revolution number in an electric tool performing processing by the rotation of a tool.
An electric drill includes at least a chuck to which a processing tool is mounted, a motor coupled to the chuck, and a switch for driving and stopping the motor, and further includes a rhythm producing means 37 for following the rotation of the motor to beat out a rhythm. A worker can grasp the revolution number of the tool by the number of sounding times and the rhythm of the sounding. Then, the worker can learn a revolution number suitable for desired processing by the rhythm, thus preventing excessive processing.
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Inventors:
SEKIYA KAZUMA
Application Number:
JP2012045243A
Publication Date:
September 12, 2013
Filing Date:
March 01, 2012
Export Citation:
Assignee:
DISCO CORP
International Classes:
B23B45/00
Domestic Patent References:
| JPH0531650A | 1993-02-09 | |||
| JPH05200677A | 1993-08-10 | |||
| JP2001232507A | 2001-08-28 | |||
| JPH07100770A | 1995-04-18 | |||
| JPH08323520A | 1996-12-10 |
Attorney, Agent or Firm:
Kyoko Kawamura
Isao Sasaki
Ken Kubo
Isao Sasaki
Ken Kubo
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