Electrical contact device for the mudguard of a bicycle of layered material composed of synthetic material and at least one metallic foil, all-sidedly enclosed in the synthetic material

摘要

An electrical contacting device (1) for sandwich protectors (2) made of plastic (3, 5) and at least one metal foil (4) enclosed on all sides by the plastic contains a metallic head (6) which has an essentially flat underside (7 ), which is pressed against an outside of the mudguard (2). An extension (8) is formed on the underside (7) of the head (6), which extends at right angles to the underside (7) and penetrates the mudguard (2) in the assembled state, a fastening device () anchored to the extension (8). 17) holds the contacting device in the wheel protector (2). In order to achieve a longer service life of the contact point between the metal foil (4) and the extension (8) of the contacting device (1) and a low contact resistance, only an extension (8) is provided, which is arranged concentrically with the head (6). A plurality of projections (14) are formed on the outer circumference of the extension (8) and run in the longitudinal direction of the extension (8). The fastening device (17) also concentrically surrounds the extension (8).