Wheel substitutes for land vehicles – Endless belt having nonmetallic track or tread – Track formed of endless flexible belt
Reexamination Certificate
2005-01-28
2011-12-27
Kotter, Kip T (Department: 3617)
Wheel substitutes for land vehicles
Endless belt having nonmetallic track or tread
Track formed of endless flexible belt
C305S165000
Reexamination Certificate
active
08083297
ABSTRACT:
The present invention relates to a coreless rubber crawler traveling device in which spring characteristics are achieved by reducing a contact area of a wheel-rolling contact surface on an inner peripheral surface of a rubber elastic body with an outer surface of a tracker roller.A coreless rubber crawler comprises an endless rubber elastic body, main cord rows embedded in the rubber elastic body in a longitudinal direction of the rubber elastic body, rubber projections formed on the inner peripheral surface of the rubber elastic body at uniform pitches, and rubber lugs formed on the outer peripheral surface of the rubber elastic body. In the coreless rubber crawler traveling device, a tracker roller, which is provided at the side of a vehicle body and which straddles the right and left sides of each of the rubber projections in the widthwise direction, rolls in such a manner that an outer surface of the tracker roller comes into contact with the inner peripheral surface of the rubber elastic body. A contact area of the inner periphery rolling contact surface of the rubber elastic body with the outer surface of the tracker roller is set in the range of 30% to 70% with respect to the area of the outer surface of the tracker roller.
REFERENCES:
patent: 1627287 (1927-05-01), Kegresse
patent: 2494065 (1950-01-01), Slemmons
patent: 5022718 (1991-06-01), Diekevers
patent: 5131728 (1992-07-01), Katoh et al.
patent: 6106083 (2000-08-01), Ono
patent: 6176557 (2001-01-01), Ono
patent: 6471307 (2002-10-01), Watanabe et al.
patent: 6890042 (2005-05-01), Inaoka et al.
patent: 6942305 (2005-09-01), Ueno
patent: 7077485 (2006-07-01), Akiyama et al.
patent: 7083242 (2006-08-01), Piou et al.
patent: 7185958 (2007-03-01), Ueno
patent: 7367637 (2008-05-01), Gleasman
patent: 2002/0047306 (2002-04-01), Watanabe et al.
patent: 2003/0160508 (2003-08-01), Ueno
patent: 1 013 542 (2000-06-01), None
patent: 1 273 504 (2003-01-01), None
patent: 56086871 (1981-07-01), None
patent: 03-19785 (1991-02-01), None
patent: 2001-146182 (2001-05-01), None
patent: 2002-2564 (2002-01-01), None
patent: 2002-127955 (2002-05-01), None
patent: 2003-252259 (2003-09-01), None
patent: 03/097434 (2003-11-01), None
European Search Report dated Feb. 11, 2008.
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 143836/1983 (Laid-Open No. 50087/1985) (Kabushiki Kaisha Kubota Tekkosho), 3 pages (Apr. 8, 1985).
Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 80103/1989 (Laid-Open No. 19785/1991) (Mitsubishi Agricultural Machinery Co., Ltd.), (Feb. 26, 1991).
Bridgestone Corporation
Kotter Kip T
Sughrue & Mion, PLLC
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