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Patent Searching and Data


Title:
SHOCK ABSORBING DEVICE FOR DISCONNECTOR
Document Type and Number:
Japanese Patent JP2014120276
Kind Code:
A
Abstract:

To prevent an insulator from being damaged even when receiving an excessive earthquake motion exceeding a movable limit.

A shock absorbing device 10 which is interposed between vertically neighboring insulators constituting an operation insulator for transmitting torque for opening/closing a disconnector comprises a universal joint 21 and a damper 22 mounted within the universal joint. In the universal joint 21, a cross joint 25 is held between an upper coupling 26 and a lower coupling 27 and integrated using a pin 28. The damper is formed from ring springs 33 accommodated in an accommodation container 31 and a guide cap 32. The accommodation container and the guide cap are interlocked by a guide pin 40 and apply initial loads to the ring springs while being restricted in a maximum separation distance therebetween.


Inventors:
TAKAHASHI TETSUO
NAGATA KIYOSHI
OYAMA TOMOYUKI
ITO TOMOAKI
Application Number:
JP2012000273671
Publication Date:
June 30, 2014
Filing Date:
December 14, 2012
Export Citation:
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Assignee:
TAKAOKA ELECTRIC MFG CO LTD
TOKYO ELECTRIC POWER CO
International Classes:
H01H31/02; F16F7/00
Domestic Patent References:
JPH01148631U1989-10-16
JPS5759489U1982-04-08
JP2000230343A2000-08-22
JP2006202446A2006-08-03
JPS459218Y11970-04-30
JP2000251587A2000-09-14
JPS5114766U1976-02-03
Foreign References:
US6226935B12001-05-08
Attorney, Agent or Firm:
松井 伸一