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Title:
ENERGY ACCUMULATING DEVICE
Document Type and Number:
Japanese Patent JPH0357137
Kind Code:
A
Abstract:

PURPOSE: To prevent the breakdown of an energy accumulating spring by an excessive stress by providing two rotatable cylindrical members between an output shaft or input shaft forming a guide bar and a coil spring.

CONSTITUTION: Between an output shaft 10 and a coil spring 20, sleeves 30a, 30b are rotatably provided on the outer circumference of the output shaft 10. When an input shaft 5 is clockwise rotated, a lower arm 20b is clockwise rotated, the coil spring 20 is twisted in the winding direction to accumulate energy, and made into contact with each sleeve 30a, 30b at points A, B, respectively in the way of the energy accumulation, and the lower arm 20b is further clockwise moved to proceed the energy accumulation. During this, both the coil spring 20 and the sleeve 30a are smoothly rotated against the output shaft 10 in the state in contact at the point A, so that the whole coil spring 20 is elastically deformed, and no excessive stress is generated in the coil spring 20.


Inventors:
MIYAHARA TSUTOMU
Application Number:
JP19325189A
Publication Date:
March 12, 1991
Filing Date:
July 26, 1989
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01F29/04; H01H5/04; H01H83/12; (IPC1-7): H01F29/04; H01H5/04; H01H83/12
Domestic Patent References:
JPS4817656B11973-05-31
JPS61200622A1986-09-05
Attorney, Agent or Firm:
Mamoru Takada (1 person outside)



 
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