Electricity: motive power systems – Braking
Patent
1988-06-21
1989-10-31
Ro, Bentsu
Electricity: motive power systems
Braking
200 1R, 307112, H02P 312
Patent
active
048780006
ABSTRACT:
An improved triggering switch for DC motors having a base support, a pressing member operatively mounted over the base support, a coupling stand with an open section installed in an upper portion of the base support, a set of motor terminals and power source terminals combined with a contact shaft respectively disposed in the open section of the coupling stand, and a selection button adjustably installed at the base support and movably connected to the contact shaft. The improvement includes a braking member having an elongated terminal connected to a negative terminal of the motor terminals and a C-shaped contact portion formed at a rear end thereof fixedly disposed around the motor and the power source terminals in the open section of the coupling stand with the C-shaped contact portion being positioned in line with a rear end of a positive terminal of the motor terminals; thereby, when the contact shaft is moved back with the power source being cut off, the C-shaped contact portion and the positive terminal of the motor terminals will be connected by the contact shaft to short-circuit the motor and immediately stop it.
REFERENCES:
patent: 4459522 (1984-07-01), Huber
patent: 4588910 (1986-05-01), Bausch
patent: 4667119 (1987-05-01), Holmes
Ostfeld David M.
Ro Bentsu
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