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Patent Searching and Data


Title:
SPRING ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2012/121072
Kind Code:
A1
Abstract:
A supporting protrusion (10), onto which the end coil part (2a) of a coil spring (2) is fitted, is formed on a resin substrate (1). The tip part (11) of this supporting protrusion (10) has a rigidity such that it does not bend as it resists the radially inward spring force caused by the end coil part (2a) of the coil spring (2). On the other hand, an elastic bending region (14), which bends elastically as it resists the radially inward spring force caused by the coil part (2a) of the coil spring (2), is formed in a region (12) extending from the base end of the supporting protrusion (10) to the tip part (11). When the end coil part (2a) of the coil spring (2) is fitted onto the supporting protrusion (10), the end coil part (2a) of the coil spring (2) initially is pushed and spreads outward as it moves, due to the high rigidity at the tip part (11) of the supporting protrusion. When the end coil part (2a) of the coil spring (2) reaches the elastic bending region (14) of the supporting protrusion (10), the radially inward spring force imparted by the end coil part (2a) of the coil spring (2) causes the elastic bending region (14) to bend elastically, reducing its diameter in the same direction, and the elastic bending region assumes a constricted state.

Inventors:
FUEKI TOSHIE (JP)
Application Number:
PCT/JP2012/055030
Publication Date:
September 13, 2012
Filing Date:
February 29, 2012
Export Citation:
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Assignee:
PIOLAX INC (JP)
FUEKI TOSHIE (JP)
International Classes:
F16F3/04; F16F1/12; F16F15/067
Foreign References:
JP2007292271A2007-11-08
JP2007024278A2007-02-01
JPS59191439U1984-12-19
Attorney, Agent or Firm:
YAMAMOTO, Toshitake (JP)
Toshitake Yamamoto (JP)
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Claims: