US Patent 10081404 Holder

A holder for fastening an accessory part to a two-wheeler comprises a base section for fastening the holder to the two-wheeler and a reception section for receiving a spigot-like holding section of the accessory part. In this respect, the reception section has a continuous passage which extends along a passage axis and which has an inlet section at a first end for introducing the holding section of the accessory part into the continuous passage as well as a constriction section at a second end opposite the first end whose cross-section is constricted with respect to the inlet section to limit the introduction of the holding section of the accessory part into the continuous passage.