Patent ID: 6280132
Filing Date: 2001-08-28
Classification: F02F,F02M,F16B,Y10S

Abstract:
A fastening arrangement for securing an assembly part (40) on a carrier part (50), comprising:at least one fastening screw (10) including a screw head (11) with engaging surfaces for interacting with a tool, a screw shank (13), at least one radial projection (14) on the screw shank (13) at a spaced distance from the screw head (11) and a thread (15) located between the radial projection (14) and an end of the shank remote from the screw head (11),a sleeve (20) formed as a single unitary piece having an inner diameter along its entire length which corresponds at least to an outer diameter of the radial projection (14) and of the thread, said sleeve including a radially inward projection (22) formed with an inner diameter smaller than the diameter of the radial projection (14) but at least as large as the outer diameter of the screw shank (13) between the screw head (11) and the radial projection (14), an upper end of the sleeve comprises a head flange (23) and a lower end of the sleeve includes a foot flange (24) extending only outwardly, said fastening screw (10) is inserted into the sleeve such that the radially inward projection (22) is snapped over the radial projection (14) of the fastening screw (10) to locate the screw head (11) adjacent an outer side of the head flange (23),a flexible assembly ring (30) having an inner diameter smaller than an outer diameter of each of the head flange (23) and the foot flange (24), said assembly ring mounted on said sleeve between the head flange (23) and the foot flange (24) and the height of the sleeve between the head and foot flanges is at least double the height of the assembly ring and wherein an outer diameter of the assembly ring is less than the outer diameter of the head flange and an axial length of the assembly ring is greater than an axial thickness thereof.