Three-wheel vehicle and concentric sprocket assembly therefor
First Claim
1. A vehicle, comprising:
- a frame;
an engine supported by the frame;
at least one rear wheel;
a swing arm, the swing arm rotatably supporting the at least one rear wheel at a first end and pivotally connected to the frame at a second end at a pivot point;
a concentric sprocket assembly attached to the frame at the pivot point, the concentric sprocket assembly including a first sprocket and a second sprocket;
a first transmission member operatively connecting an output shaft of the engine and the first sprocket; and
a second endless flexible transmission member operatively connected between the rear wheel and the second sprocket.
2 Assignments
0 Petitions
Accused Products
Abstract
A three-wheel vehicle has two forward steered wheels and one rear powered wheel operatively connected to an engine disposed on a frame assembly. A straddle-type seat is disposed between the forward and rear wheels. A rear swing arm is pivotally connected at a first end to the frame at a pivot point and rotatably supports the rear wheel at a second end. A concentric sprocket assembly having first and second sprockets is attached to the swing arm at the pivot point. A transmission member operatively connects an output shaft of the engine and the first sprocket and a second endless flexible transmission member is operatively connected between the rear wheel and the second sprocket. An eccentric endless flexible transmission member tension adjustment mechanism is attached to the swing arm to move the concentric assembly sprocket relative to a longitudinal axis of the swing arm.
16 Citations
20 Claims
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1. A vehicle, comprising:
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a frame;
an engine supported by the frame;
at least one rear wheel;
a swing arm, the swing arm rotatably supporting the at least one rear wheel at a first end and pivotally connected to the frame at a second end at a pivot point;
a concentric sprocket assembly attached to the frame at the pivot point, the concentric sprocket assembly including a first sprocket and a second sprocket;
a first transmission member operatively connecting an output shaft of the engine and the first sprocket; and
a second endless flexible transmission member operatively connected between the rear wheel and the second sprocket. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vehicle, comprising:
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a frame;
an engine supported by the frame;
at least one front wheel supported by the frame;
at least one rear wheel;
a swing arm, the swing arm rotatably supporting the at least one rear wheel at a first end and pivotally connected to the frame at a second end at a pivot point;
a concentric sprocket assembly attached to the frame at the pivot point, the concentric sprocket assembly including a sprocket and a pulley;
a first endless flexible transmission member operatively connecting an output shaft of the engine and the pulley; and
a second endless flexible transmission member operatively connected between the rear wheel and the second sprocket. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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- 19. A vehicle according to claim 19, wherein the at least one front tire has a width of about 6.5 inches (165 mm) to 10 inches (254 mm).
Specification