Rivet made of plastic material for securing a plate-like workpie

Details Rivet made of plastic material for securing a plate-like workpie Rivet made of plastic material for securing a plate-like workpie

1995-02-15

1996-07-30

Wilson, Neill R.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having separate expander means

Including sleeve and distinct tapered expander

411 41, 411 48, 411 60, 24297, F16B 1306, A44B 104

Patent

active

055405282

ABSTRACT:
A rivet made of plastic material for securing a plate-like workpiece to a support assembly with an approximately plane surface comprises a shank having a hollow axial passage and at least two axially parallel slots open towards the free end of the shank, the shank portions formed thereby comprising at the outer sides thereof ramp-like portions projecting obliquely outwardly and downwardly, with the axial passage tapering towards the free end of the shank, a first plate-shaped flange at the other end of the shank, the flange having at its under-surface an annular relatively sharp sealing edge engaging the surface of the support assembly when the shank is inserted into an opening of the support assembly, a second plate-shaped flange upon the side of the first flange opposite to the shank and axially spaced thereform, and an expansion member having an annular sealing rib at its upper end, the annular sealing rib being sealingly engaged with the axial passage, when the expansion member is driven into the passage.

REFERENCES:
patent: 4114509 (1978-09-01), Poe
patent: 4715095 (1987-12-01), Takahashi
patent: 4861208 (1989-08-01), Boundy
patent: 4878791 (1989-11-01), Kurihara et al.
patent: 4987656 (1991-01-01), Sato
patent: 5173026 (1992-12-01), Cordola et al.

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