Title:
OPERATION MECHANISM FOR OPENING/CLOSING DEVICE
Document Type and Number:
Japanese Patent JP3182042
Kind Code:
B2
Abstract:
PURPOSE: To reduce a trip operation force and to stabilize operation.
CONSTITUTION: A charge cam 30, a trip lever 31, and a force accumulation cam 35 are rotatably installed on a drive shaft. Three latches of a charge latch 38 control the force accumulation state of a charge spring 37, a trip latch 39, and a force latch 40 are arranged. Charge operation and trip operation are effected by means of force accumulation energy of the charge spring 37, and a release force from the contact side of a switch is not used as trip operation. This operation reduces the occurrence of unevenness in a trip operation force and performs tip operation by means of a flow force.
Inventors:
Minoru Nakahata
Masao Narita
Hiroshi Todori
Masao Narita
Hiroshi Todori
Application Number:
JP11461394A
Publication Date:
July 03, 2001
Filing Date:
April 27, 1994
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H01H5/10; H01H33/42; (IPC1-7): H01H33/42
Domestic Patent References:
| JP61193319A | ||||
| JP60230320A | ||||
| JP61200622A | ||||
| JP57154045U |
Attorney, Agent or Firm:
Keigo Murakami (4 outside)