Bicycle frame
First Claim
1. A bicycle comprising a frame having a single tapered monocoque nose portion, the nose portion having a front sleeve adapted to receive a front wheel-mounting member, a center portion having a single monocoque tapered upper arm extending upwardly from a juncture with the nose portion and adapted to support a seat and a single monocoque tapered lower arm extending downwardly from a juncture with the nose portion and having a bottom sleeve adapted to support a bottom bracket/crank assembly, and a single monocoque tail portion extending rearwardly from a juncture with the center portion and having a pivot mounting at a rear end thereof, a single front-wheel-mounting member rotatably mounted in the front sleeve, a front wheel mounted entirely and solely on one lateral side of the wheel-mounting member, and a rear wheel mounted entirely and solely on one lateral side of the tail portion of the frame.
15 Assignments
0 Petitions
Accused Products
Abstract
A bicycle frame comprises a tapered nose portion having a front sleeve adapted to receive a front wheel-mounting member, a center portion having a tapered upper arm adapted to support a seat and a tapered lower arm having a bottom sleeve adapted to support a bottom bracket/crank assembly, and a tail portion having a rear sleeve adapted to support a rear wheel. The frame may be modular, and some or all of the portions may be of monocoque construction.
42 Citations
19 Claims
- 1. A bicycle comprising a frame having a single tapered monocoque nose portion, the nose portion having a front sleeve adapted to receive a front wheel-mounting member, a center portion having a single monocoque tapered upper arm extending upwardly from a juncture with the nose portion and adapted to support a seat and a single monocoque tapered lower arm extending downwardly from a juncture with the nose portion and having a bottom sleeve adapted to support a bottom bracket/crank assembly, and a single monocoque tail portion extending rearwardly from a juncture with the center portion and having a pivot mounting at a rear end thereof, a single front-wheel-mounting member rotatably mounted in the front sleeve, a front wheel mounted entirely and solely on one lateral side of the wheel-mounting member, and a rear wheel mounted entirely and solely on one lateral side of the tail portion of the frame.
- 12. A bicycle comprising a frame having a single tapered monocoque nose portion, the nose portion having a front sleeve adapted to receive a front wheel-mounting member, a center portion having a single monocoque tapered upper arm extending upwardly from a juncture with the nose portion and adapted to support a seat and a single monocoque tapered lower arm extending downwardly from a juncture with the nose portion and having a bottom sleeve adapted to support a bottom bracket/crank assembly, and a single monocoque tail portion extending rearwardly from a juncture with the center portion and having a pivot mounting at a rear end thereof, a single front-wheel-mounting member rotatably mounted in the front sleeve and having a pivot mounting at a lower end thereof, a front trailing arm pivotally mounted on the pivot mounting of the front wheel-mounting member extending downwardly and rearwardly from the pivot mounting and having a wheel mount at a lower rear end thereof, means biasing the front trailing arm forwardly and downwardly about the pivot mounting, a rear trailing arm pivotally mounted on the pivot mounting of the tail portion of the frame, extending downwardly and rearwardly from the pivot mounting and having a wheel mount at a lower rear end thereof, means biasing the rear trailing arm forwardly and downwardly about the pivot mounting, a front wheel mounted on the wheel mount of the front trailing arm entirely on one side of the front trailing arm and a portion of the front wheel-mounting member, and a rear wheel mounted on the wheel mount of the rear trailing arm entirely on one side of the rear trailing arm and a portion of the tail portion of the frame.
Specification