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Patent Searching and Data


Title:
SPRING FORCE HOLDING STRUCTURE FOR ACTUATION DEVICE
Document Type and Number:
Japanese Patent JP2002340058
Kind Code:
A
Abstract:

To provide a structure for improving the reliability of a function of a safety brake mechanism in an actuation device.

To a shaft member 318 rotation-regulated by a ring 316 attracted by an electromagnet 315, a lock sleeve 313 related to action of the safety brake mechanism 3 is engaged to be movable in the axial direction regardless of the shaft member 318, and integrally rotatable with the shaft member 318 around its axis. Force to move the lock sleeve 313 in the axial direction by vibration or the like is not applied to the shaft member 318, thereby effects are not given to attracted conditions of the ring 316.


Inventors:
AKAMATSU OSAMU
MORIMOTO KAZUNORI
Application Number:
JP2001144922A
Publication Date:
November 27, 2002
Filing Date:
May 15, 2001
Export Citation:
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Assignee:
NABCO LTD
International Classes:
B60T13/04; F16D59/02; F16D65/22; (IPC1-7): F16D59/02; B60T13/04; F16D65/27
Attorney, Agent or Firm:
Takafumi Watanabe