Patent ID: 8087685
Filing Date: 2012-01-03
Classification: B62K,F16C,Y10T

Abstract:
1. A locking device mounting a shaft tube of a fork of a two wheeled vehicle within an upper bearing unit, lower bearing unit and a steering head tube of a frame of the vehicle, the shaft tube and steering head tube defining an axial direction, the locking device comprising: a clamping ring having a split bifurcating a first end of the clamping ring, a clamping screw traversing the split perpendicularly to lockingly compress the ring to the shaft tube, a looking screw received in a threaded borehole perpendicular to the axial direction and located on a second side of the clamping ring opposite the split, a bottom surface having a plurality of identical wedge-shaped elevations tapering in a circumferential direction of the clamping ring, the bottom surface having an elongated recess therein extending in the axial direction; a compression ring having a top surface with a plurality of identical wedge-shaped elevations tapering in a circumferential direction of the compression ring and a pin extending from the compression ring to be received within the elongated recess, wherein threading of said locking screw into the threaded borehole to abut the pin shifts the pin on an arc in the recess to cause the compression ring to rotate relative to the clamping ring: such that the wedge-shaped elevations of the compression ring slidingly engage with the wedge-shaped elevations of the clamping ring to force the compression ring to apply an axial pressure on the upper bearing unit.