Patent ID: 6170135
Filing Date: 2001-01-09
Classification: A44B,Y10T

Abstract:
Watertight press fastener part formed of an eyelet part (1 or 3) comprising an eyelet body (2 or 4) or of a ball part (5) comprising a ball body, each of which has an axial opening (10), and a cap rivet (7) which is fixable to a flat material (9) in a watertight manner by riveting, with an elastically deformable sealing element (11 or 12) which makes contact at the flat material (9) and is constructed as a moulded part, wherein the sealing element (1 or 12), being penetrated by the rivet shank (8) of the cap rivet (7), has in the assembled state due to the deformation of the rivet shank a press face (13) which is formed in an analogous manner by deformation and which surrounds the axial opening (10) of the press fastener part and, together with a counter-face (14) at the eyelet part (1, 3) or at the ball part (5), defines the clamping area for the flat material (9), wherein the sealing element (11, 12) comprises a sleeve-shaped portion (15) followed by a radially outwardly extending annular disk-shaped portion (16), wherein the sleeve-shaped portion (15) of the sealing element (11, 12) is provided in the region of its free edge with (20) a radially outwardly directed reinforcement forming a circumferentially extending undercut (22) and the undercut is provided with a circumferentially extending bevel (21) facilitating assembly, proceeding from the free edge and facing the annular disk-shaped portion (16), and wherein the sealing element (11, 12) is configured for purposes of preassembly to be mounted on the eyelet body (2, 4) forming the eyelet part (1, 3) or on the ball body (6) forming the ball part (5) in such that it penetrates the axial opening (10) of the eyelet body (2, 4) or the axial opening (10) of the ball body (6) with the sleeve-shaped portion and, when subsequently riveted with the rivet shank (8) of the cap rivet (7) guided through the sleeve-shaped portion (15), contacts by its annular disk-shaped portion (16) the flat material (9) interposed between the eyelet part or ball part and cap rivet and is configured to be pressed with this flat material (9).