Title:
SPRING
Document Type and Number:
WIPO Patent Application WO/2011/129208
Kind Code:
A1
Abstract:
Provided is a spring for which the height can be set low, which enables the spring to accommodate small installation spaces. A contact section of a first cylindrical section (11) has a reinforcing section (21) that protrudes inward in a radial direction of a hole section (10A), which enables the rigidity of an end section of a first member (101) side of the first cylindrical section (11) to be increased. A contact section of a second cylindrical section (12) has a reinforcing section (22) that protrudes outward in a radial direction of the hole section (10A), which enables the rigidity of an end section of a second member (102) side of the second cylindrical section (12) to be increased. As a result, deformation of the end sections of the mating member sides (101 and 102) of the cylindrical sections (11 and 12) can be prevented, even when the height of the cylindrical members (11 and 12) is reduced and there is elastic deformation of corners (13 and 14) when load is applied.
Inventors:
TAJIMA NORIHIRO (JP)
ITO HIDEMASA (JP)
TOMINAGA JUN (JP)
ITO HIDEMASA (JP)
TOMINAGA JUN (JP)
Application Number:
PCT/JP2011/058447
Publication Date:
October 20, 2011
Filing Date:
April 01, 2011
Export Citation:
Assignee:
NHK SPRING CO LTD (JP)
TAJIMA NORIHIRO (JP)
ITO HIDEMASA (JP)
TOMINAGA JUN (JP)
TAJIMA NORIHIRO (JP)
ITO HIDEMASA (JP)
TOMINAGA JUN (JP)
International Classes:
F16F1/32
Domestic Patent References:
| WO2009139332A1 | 2009-11-19 |
Foreign References:
| JP2010071121A | 2010-04-02 | |||
| JPS5988553U | 1984-06-15 | |||
| JP2010255757A | 2010-11-11 | |||
| JP2009519419A | 2009-05-14 |
Attorney, Agent or Firm:
SUENARI, Mikio (JP)
End 成 Mikio (JP)
End 成 Mikio (JP)
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Claims: