Land vehicles – Skates – Wheeled skate
Patent
1995-05-03
1997-04-15
Camby, Richard M.
Land vehicles
Skates
Wheeled skate
280 1122, 188 5, A63C 1714
Patent
active
RE0354937
ABSTRACT:
A roller brake for a roller vehicle such as an in-line roller skate is mounted at an end of a substantially horizontal platform. The roller brake includes a non-rotatable brake hub connected to the chassis, the hub having a horizontal axis perpendicular to a direction of forward travel. The brake hub has a circumferential periphery defining a V-shaped groove, for receiving a brake tire rotatably mounted annularly on the brake hub. The outer periphery of the brake tire is normally disposed above the ground surface but is selectively engageable with the ground surface, preferably simply by tilting the horizontal platform on an endmost ground-engaging wheel adjacent the roller brake. Contact with the ground surface engages the tire with the ground and produces rotation of the tire on the brake hub. Kinetic energy of motion is dissipated as frictional heating between the rotating brake tire and the fixed brake hub. The V-shaped groove is 120.degree. to 150.degree. and the tire is thermoset polyurethane and oversized relative to the hub by 0.5 to 1.3 mm, whereby the tire is not readily stopped on the hub (caused to skid on the ground). The roller brake produces friction in a predictable manner which does not vary as a function of the smoothness of the ground surface.
REFERENCES:
patent: 28509 (1860-05-01), Shaler
patent: 182835 (1876-10-01), Lockwood
patent: 334739 (1886-01-01), Blun
patent: 503233 (1893-08-01), Frankenberg
patent: 916289 (1909-03-01), Fitzgerald
patent: 1371623 (1921-02-01), Ickenroth
patent: 1616952 (1927-02-01), Dahl
patent: 1801205 (1931-04-01), Mirick
patent: 2021316 (1935-11-01), Marx
patent: 2191018 (1940-02-01), Ickenroth
patent: 2644692 (1953-07-01), Kahlert
patent: 3224785 (1965-12-01), Stevenson
patent: 3287023 (1966-11-01), Ware
patent: 3339936 (1967-09-01), Hamlin
patent: 3387852 (1968-06-01), De Sarro
patent: 3823952 (1974-07-01), Kukulowicz
patent: 3880441 (1975-04-01), Silver
patent: 3900203 (1975-08-01), Kukulowicz
patent: 4181227 (1980-01-01), Balstad
patent: 4273345 (1981-06-01), Ben-Dor et al.
patent: 4898403 (1990-02-01), Johnson
patent: 5028058 (1991-07-01), Olson
patent: 5048848 (1991-09-01), Olson et al.
patent: 5052701 (1991-10-01), Olson
patent: 5138275 (1993-02-01), Hoskin
patent: 5308093 (1994-05-01), Walin
Camby Richard M.
Thistle Sports Enterprises, Inc.
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