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Title:
OFF-ROAD TRUCK WITH RUBBER SPRING APPARATUS INSTALLED
Document Type and Number:
WIPO Patent Application WO/2012/002064
Kind Code:
A1
Abstract:
A rubber spring apparatus (30) is composed of rigid sheets (32) and rubber layers (33) which are alternately bonded together and laminated into a plurality of layers. The rigid sheets (32) are structured in such a manner that the length (W) disposed in the direction parallel with the longitudinal direction of an equalizer bar (23) in a planar shape is shorter than the length (H) disposed in the direction parallel with the axle direction of a vehicle. The rubber spring apparatus (30) is arranged between an end of the equalizer bar (23) and the center vehicle axle (13) in an articulated dump truck, and is made to function as suspension. Thus, the peak position of the internal stress inside the rubber layers (33) can be dispersed and reduced, and the generation of cracks inside the rubber layers can be prevented, even if the rubber spring apparatus (30) distorts into an accordion shape.

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WO/2000/046057ARTICULATING VEHICLE
Inventors:
MORIYAMA, Tomoyuki (Komatsu Ltd. 163-46, Nagasuna, Hitachinaka-sh, Ibaraki 04, 〒3120004, JP)
森山 智之 (〒04 茨城県ひたちなか市長砂163-46 株式会社小松製作所 茨城工場内 Ibaraki, 〒3120004, JP)
Application Number:
JP2011/061717
Publication Date:
January 05, 2012
Filing Date:
May 23, 2011
Export Citation:
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Assignee:
KOMATSU LTD. (3-6 Akasaka 2-chome, Minato-ku Tokyo, 14, 〒1078414, JP)
株式会社小松製作所 (〒14 東京都港区赤坂二丁目3番6号 Tokyo, 〒1078414, JP)
MORIYAMA, Tomoyuki (Komatsu Ltd. 163-46, Nagasuna, Hitachinaka-sh, Ibaraki 04, 〒3120004, JP)
International Classes:
B60G11/22; B60G5/02; F16F1/40; F16F15/04
Foreign References:
JP2007333052A
JPH05338552A
JP2002527702A
JP2006057833A
JP2007333052A
Other References:
See also references of EP 2589505A1
Attorney, Agent or Firm:
NOGUCHI, Takeo et al. (Mutsumi Int. Patent Bureau, P.C. Tousen kanda sudacho Bldg., 28, Kanda-sudacho 1-chome, Chiyoda-k, Tokyo 41, 〒1010041, JP)
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Claims: