Wheel substitutes for land vehicles – With means to remove or exclude foreign matter – With self-cleaning sprocket or drive wheel
Reexamination Certificate
2005-04-26
2005-04-26
Stormer, Russell D. (Department: 3617)
Wheel substitutes for land vehicles
With means to remove or exclude foreign matter
With self-cleaning sprocket or drive wheel
C305S196000, C305S199000
Reexamination Certificate
active
06883876
ABSTRACT:
The invention provides a crawler type traveling apparatus which can be stably used for a long time period, and furthermore provides a crawler belt sprocket and a segment thereof which is best suited for the crawler type traveling apparatus.A crawler type traveling apparatus is provided with a crawler belt (3) and a crawler belt sprocket (2). The crawler belt (3) is structured such that a plurality of links (4) are connected via a bearing structure body (5) having a pin (7) a bush (8) which is outward fitted to the pin (7), and seal member (10, 10) which are arranged in both end sides of the bush (8). Guide portions (G, G) making an intrusion into a portion between the relatively facing links (4, 4) are protruded from both side surfaces of the sprocket (2). The sprocket (2) is connected via the bearing structure body (5), and a gear tooth portion (26) thereof makes an intrusion into the portion between the relatively facing links (4, 4) so as to be engaged with the bush (8). Space portions (36, 36) are formed in an outer side of the seal members (10, 10) in the engagement state.
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Hashimoto Akira
Yamamoto Teiji
Bellinger Jason R.
Komatsu Limited
Stormer Russell D.
Westerman Hattori Daniels & Adrian LLP
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