Exhaust element fixing device for heat engine of motor vehicle, has retaining unit for retaining wedge in position away from support unit against traction exerted on wedge, when traction force is less than determined value

摘要

The device (3) has a mobile wedge (6) placed between a support (4) and an exhaust element (11). A strap (7) fixes the exhaust element on the support. The strap comprises an end (70) integrated to the support or a support unit (5), and another end (70') movably integrated to the wedge. An exertion unit (73) exerts traction on the wedge for maintaining the wedge in connection with the support unit. A retaining unit retains the wedge in a position away from the support unit against traction exerted on the wedge, when traction force is less than a determined value.