Title:
【発明の名称】電磁石ベース付ドリル装置
Document Type and Number:
Japanese Patent JPH0777686
Kind Code:
B2
Abstract:
A magnet base drill unit in which the driving of the drill motor and the feed motor of the magnet base drill unit is stopped by operation of the switch which operates on the instant when sliding has been produced in the magnet base drill unit, and the stopping thereof is maintained electrically or electronically. A mercury switch comprising a cylindrical body in which mercury is sealed, and a pair of contacts provided so as to project into the cavity of the cylindrical body, or a vibration switch comprising a fixed contact, and a vibration responsive contact placed by a spring means in proximity to the fixed contact is preferably used.
Inventors:
Tokaibayashi Michihiro
Application Number:
JP15351789A
Publication Date:
August 23, 1995
Filing Date:
June 15, 1989
Export Citation:
Assignee:
Nitto Kohki Co., Ltd.
International Classes:
B23B45/14; B23B47/00; B25H1/00; H01H29/22; H02H11/00; (IPC1-7): B23B45/14; B23B47/00; H01H29/22; H02H11/00
Domestic Patent References:
| JP5424679U | ||||
| JP5850803B2 | ||||
| JP412654Y1 |
Attorney, Agent or Firm:
Michito Hiraki (1 person outside)
Next Patent: ドリル装置