Dismountable coupling device for e.g. removable shield on vehicle engine, has stud including housing whose shape is complementary to that of head and part of mouthpiece, and cavity arranged around housing to define vibratory work zone

摘要

The device (10) has a male element (11) formed by a mounting pin (13). A female element (12) has a coupling stud (18) whose body is made of plastic material to form a mechanical elastic connection between construction pieces such as engine and removable shield. The stud has an internal central housing whose shape is complementary to that of a retention head (14) and a part of a truncated middle mouthpiece (16). An annular axial cavity (20) is coaxially arranged around the housing for defining a vibratory work zone (ZT) between the housing and a radial groove (21) of the body.