Patent ID: 8136829
Filing Date: 2012-03-20
Classification: B62K

Abstract:
1. A mountain bike frame, comprising: (a) a force channelling top tube comprising a front portion and a rear portion; (b) a shock absorber mount attached to or forming a portion of the top tube; (c) a down tube comprising front and rear portions, a front torque conversion device mount attached to or forming a portion of the down tube; (d) a head tube having the front portion of the top tube attached to an upper portion of the head tube and the front portion of the down tube attached to a lower portion of the head tube; (e) a seat tube comprising top and bottom portions, the rear portion of the top tube being attached to the top portion of the seat tube, the rear portion of the down tube being attached to the bottom portion of the seat tube; (f) a rear triangle comprising upper seat stays and lower chain stays, the upper seat stays comprising at least one forward portion located forward of the seat tube; (g) an elongated rear torque conversion device having a front portion pivotally attached to the bottom portion of the seat tube and a rear portion pivotally attached to the lower chain stays; (h) a shock absorber comprising forward and rearward portions, the forward portion of the shock absorber being attached to the shock absorber mount, and a distance between the rearward portion of the shock absorber and the top tube being substantially shorter than a distance between the rearward portion of the shock absorber and the down tube, and (i) an elongated front torque conversion device comprising upper and lower portions, the lower portion of the front torque conversion device being pivotally attached to the front torque conversion device mount, the upper portion of the front torque conversion device being pivotally attached to the at least one forward portion of the upper seat stays and to the rearward portion of the shock absorber; wherein the shock absorber is configured to compress when the rear triangle moves upwardly with respect to the force channelling top tube and the seat tube, at least portions of forces generated by upward movement of the rear triangle with respect to the force channelling top tube and the seat tube are transmitted through the front and rear torque conversion devices to the shock absorber, the shock absorber mount and the force channelling top tube, and wherein the upper portion of the front torque conversion device and the rear portion of the rear torque conversion device, when the mountain bike frame is viewed from a right side view, each rotate in a clockwise direction when the rear triangle moves upwardly with respect to the force channelling top tube and the seat tube.