Patent ID: 7731445
Filing Date: 2010-06-08
Classification: B62K,Y10T

Abstract:
1. A captured shim head set for a bicycle, comprising: a bearing set having inner and outer bearing races and a through-hole for passing a steerer tube therethrough; a bearing cup structured for mounting on a head tube of a bicycle and having an internal receiving space in which said bearing set is seated; a substantially ring-shaped compression member engageable with the inner bearing race for axially loading the bearing set against the bearing cup and radially affixing the bearing set to a steerer tube of a bicycle front fork, said compression member having a radially projecting portion; a top cap interconnectable with the compression member with a variable spacing between a downward facing contact surface of the top cap and an upward facing surface of the compression member and with which an axial load is applied to the compression member, said top cap having a radially projecting portion which projects in an opposite radial direction relative to the radially projecting portion of the compression member; and at least one shim for selectively adjusting the spacing between the downward facing contact surface of the top cap and the upward facing surface of the compression member; wherein a lost motion mechanism is formed between said radially projecting portion of the compression member and said radially projecting portion of the top cap, said radially projecting portions being movable relative to each other across said variable spacing by an amount determined by the presence or absence of said at least one shim therebetween, and wherein said at least one shim is selectively capturable in said variable spacing for limiting the degree of movement between the compression member and top cap in a manner limiting the distance that the top cap is movable towards the compression member.