B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
B62D 55/08 (2006.01) B62D 11/00 (2006.01)
Patent
CA 2345819
A novel mountain snowmobile comprises a frame, an engine disposed on the frame, at least one ski disposed on the frame, a seat disposed on the frame, a steering device disposed on the frame forward of the seat that is operatively connected to the at least one ski for steering the snowmobile, and a novel long length drive track disposed below the frame and connected operatively to the engine for propulsion of the snowmobile. The novel drive track comprises an endless body having a ground-engaging outer surface with a central portion flanked by first and second lateral portions, a plurality of longitudinally spaced reinforcing rods disposed in the body along a transverse direction of the body. The rods define a plurality of pitches, and a plurality of profiles project from the outer surface of the body along the plurality of pitches. A plurality of non-profile regions is defined along the plurality of pitches, and the profiles and profile-free regions define a pattern for each pitch. The pitch pattern for the novel track has a six pitch tread pattern which repeats every successive sixsomes of pitches. A height profile that varies between the first and second lateral portions is defined by the profiles. Such height profile has each profile with a height of not less than about 1'/4 inches. The long length track has a length greater than about 141 inches.
L'invention concerne une motoneige de montagne comprenant un châssis (402), un moteur monté sur le châssis, au moins un ski (116) monté sur le châssis, un siège (128) également placé sur le châssis, un dispositif (132) de guidage monté sur le châssis à l'avant du siège, ce dispositif de guidage étant connecté de manière opérationnelle au(x) ski(s) et permettant de guider la motoneige, et une chenille (320) d'entraînement longue placée sous le châssis et connectée opérationnellement au moteur afin de permettre la propulsion de la motoneige. La chenille d'entraînement comprend un élément sans fin qui présente une surface externe entrant en contact avec le sol et composée d'une partie centrale flanquée d'une première et d'une seconde partie latérale, une pluralité de tiges (346e) de renfort, espacées longitudinalement et disposées dans l'élément sans fin, transversalement à ce dernier. La sculpture de la chenille comprend un motif à six protubérances qui se répète par groupes de six.
Morin Denis
Ruske Chris
Thompson Mark B.
Bombardier Inc.
Bombardier Recreational Products Inc.
Osler Hoskin & Harcourt Llp
LandOfFree
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