Support roller of crawler type traveling apparatus

Details Support roller of crawler type traveling apparatus Support roller of crawler type traveling apparatus

2007-07-03

2007-07-03

Bellinger, Jason R. (Department: 3617)

Wheel substitutes for land vehicles

With track support intermediate of end wheels

With roller support contacting lower track run

C305S130000, C305S139000

Reexamination Certificate

active

10977475

ABSTRACT:
The invention provides a support roller of a crawler type traveling apparatus which can prevent a rotational resistance from being increased by the soil or the like, and can stably achieve a function serving as the support roller for a long time. The invention provides a support roller of a crawler type traveling apparatus provided with a shaft (1), a support portion (2) supporting a center portion in an axial direction of the shaft (1), and a pair of rollers (3, 3) respectively arranged in both end portions (1a, 1a) of the shaft (1) and rotating together with the shaft (1). A mounting seat portion (36) of the support portion (2) to a track frame (51) is set within a range (S) of a roller outer shape formed by a pair of rollers (3, 3) in a plan view.

REFERENCES:
patent: 1282327 (1918-10-01), Turnbull
patent: 1795069 (1931-03-01), Baker
patent: 2284821 (1942-06-01), Heaslet
patent: 2723137 (1955-11-01), Bidwell
patent: 4257653 (1981-03-01), Meisel, Jr. et al.
patent: 2006/0028066 (2006-02-01), Yamamoto
patent: 402204184 (1990-08-01), None
patent: 2004-161043 (2004-06-01), None

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