Title:
CYLINDRICAL LAMINATED RUBBER AND AXLE BOX SUPPORT DEVICE FOR RAILWAY VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/181760
Kind Code:
A1
Abstract:
[Problem] To eliminate deformation and abutment position displacement of a restriction member that prevents large displacement. [Solution] A cylindrical laminated rubber part 1 comprises: an inner tube 2; an outer tube 3 disposed coaxially on the outside of the inner tube 2; a laminated section 4 which is provided between the inner tube 2 and the outer tube 3 and is formed by alternately laminating, in the radial direction of the outer tube 3, rubber parts 5A to 5C and support plates 6A, 6B; and gaps 7 formed in the radial direction between the inner tube 2 and the outer tube 3; and is provided with inner restriction members 10 each secured to the inner tube 2 inside the gap 7 and extending radially toward the outer tube 3, and outer restriction members 20 each secured to the outer tube 3 inside the gap 7 and extending radially toward the inner tube 2. The inner restriction member 10 and the outer restriction member 20 face each other in the radial direction across the gap such that an inner facing surface 14a and an outer facing surface 24a thereof abut against each other as the laminated section 4 deforms.
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Inventors:
OTSUBO SHIGEHIRO (JP)
KITAGAKI KEI (JP)
TAMAKI KENTO (JP)
OBA TAKUYA (JP)
HANAI KATSUHISA (JP)
YAOI TAKASHI (JP)
KAMIYA SHOTA (JP)
TAKINO YUICHIRO (JP)
KITAGAKI KEI (JP)
TAMAKI KENTO (JP)
OBA TAKUYA (JP)
HANAI KATSUHISA (JP)
YAOI TAKASHI (JP)
KAMIYA SHOTA (JP)
TAKINO YUICHIRO (JP)
Application Number:
PCT/JP2023/006281
Publication Date:
September 28, 2023
Filing Date:
February 21, 2023
Export Citation:
Assignee:
SUMITOMO RIKO CO LTD (JP)
International Classes:
B61F5/30; F16F1/387; F16F1/40; F16F15/04; F16F15/08
Domestic Patent References:
| WO2005018904A1 | 2005-03-03 |
Foreign References:
| JP2008247229A | 2008-10-16 | |||
| JP2011080493A | 2011-04-21 | |||
| JP2002206581A | 2002-07-26 | |||
| JP2010078101A | 2010-04-08 |
Attorney, Agent or Firm:
ISHIDA Yoshiki (JP)
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