Patent ID: 7520692

Claim:
A detachable fastening apparatus for fastening an accessory to a front fork of a bicycle, the apparatus comprising: a) a packing device having: i) a thrust member having ribs; ii) a contracting sleeve having slots that receive the ribs; iii) a base; iv) a rotary latch disk having a handle and a plurality of hook shaped latch elements; v) an elastic element; vi) an anchor seat having notches; and vii) a bolt extending through the thrust member, contracting sleeve, base, rotary latch disk, elastic element and anchor seat, the bolt having a nut threadably tightened thereon to clamp the packing device and force the thrust member into the contracting sleeve to expand the contracting sleeve outward to fixedly wedge within the front fork; b) a coupling dock for supporting the accessory when located thereon, the coupling dock having a circular recess to receive the anchor seat, and further having retaining lugs to receive the notches, and further having holding troughs for receiving the latch elements; the rotary latch disk being rotatable between fastened and unfastened positions relative to the coupling dock to form a bayonet connection, wherein, when the rotary latch disk is rotated to the fastened position, the rotary latch disk and the coupling dock are connected together, wherein, when the rotary latch disk is rotated to the unfastened position, the rotary latch disk and the coupling dock capable of being separated.