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Patent Searching and Data


Title:
CRAWLER
Document Type and Number:
WIPO Patent Application WO/1990/000488
Kind Code:
A1
Abstract:
A crawler produced so as to prevent the occurrence of dislocation of a wheel, stabilize the running of the rotating wheels, minimize the vibrations of the wheels and enable a core bar-containing endless rubber belt to double as an endless iron caterpillar. This crawler is provided with a plurality of outer flange-carrying wheels (3) each of which has flange portions (3b, 3b') projecting from both of the outer side parts of a central inner wheel portion and extending in the radially outward direction, and an endless rubber belt (4) containing core bars (10) therein or a shoe link-carrying endless iron caterpillar (1), which is wrapped around these outer flange-carrying wheels (3). The rubber belt (4) is formed so that the rolling surfaces of the flange portions of the outer flange-carrying wheels contact the exposed shoulder portions (13a, 13b, 13a', 13b') of the core bars (10). The iron caterpillar is formed so that the rolling surfaces (3a) of the central inner wheel portions of the outer flange-carrying wheels contact the upper surfaces of the shoe links.

Inventors:
KATOH YUSAKU (JP)
UCHIYAMA TSUYOSHI (JP)
Application Number:
PCT/JP1989/000705
Publication Date:
January 25, 1990
Filing Date:
July 13, 1989
Export Citation:
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Assignee:
KOMATSU MFG CO LTD (JP)
FUKUYAMA RUBBER IND (JP)
International Classes:
B62D55/08; B62D55/20; B62D55/24; (IPC1-7): B62D55/00
Foreign References:
JPS61129682U1986-08-14
JP4812667Y
JPS63171291U1988-11-08
Other References:
See also references of EP 0428725A4
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