Circular coil fastener for attachment to motor vehicle - connects to pressure sensor for contactless transmission of tyre pressure signals

摘要

In the arrangement described the ring coil (4) is rigidly fixed to a pressure sensor (6) and is fitted to the hub (1) of the wheel (2) by means of a cylindrical section with an external diameter approximately corresp. to the internal diameter of the coil. This cylindrical section is made as a concentric strap (3), mounted coaxially on the hub and serving as a sliding seat for the coil which has a moulded projection (9) or projections, engaging with some grooves (8) in the strap and hub to prevent relative rotation. A ring-shaped, elastic fastening element (5) secures the position of the coil when it is pushed on the strap. USE/ADVANTAGE - Simple and safe method of fitting coil so that transmission of signals is not adversely affected.