Sheet metal insert for foam plastic

Details Sheet metal insert for foam plastic Sheet metal insert for foam plastic

1981-04-22

1984-02-07

Shedd, Wayne L.

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

Having separate expander means

Including sleeve and distinct tapered expander

411 74, 411177, 411180, 411437, F16B 1306

Patent

active

044300336

ABSTRACT:
A one-piece sheet metal insert for use in anchorage and fastening applications. The insert is designed to provide sufficient resistance to axial pull-out loading when utilized in relatively soft material workpieces such as structural foam plastic. The insert is also configured to take the clamp load between its collar and internal thread ribs thereby preventing tensile and compressive forces from being applied to the workpiece material surrounding the insert which commonly cause creep to occur.

REFERENCES:
patent: 2400142 (1946-05-01), Tinnerman
patent: 3910156 (1975-10-01), Soltysik

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