General purpose hollow wall toggle fastener

Details General purpose hollow wall toggle fastener General purpose hollow wall toggle fastener

1979-05-15

1981-08-25

Wolfe, Robert L.

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

Headed fastener element with nut, washer, securing means or cap

Securing means pivotable about axis transverse to fastener...

411 39, 411346, 411386, 411400, 411427, 411437, F16B 2100

Patent

active

042852641

ABSTRACT:
A hollow wall fastener using a conventional toggle bolt and a toggle anchor which is pointed and which has an open groove for receiving the toggle bolt. An end cap within the anchor has an internally threaded head portion and a frangible portion which allows the head portion to separate from the rest of the end cap when the end of the bolt is threaded into the head portion, thus twisting the frangible portion until it breaks. Thereafter the head portion prevents withdrawal of the toggle bolt from the anchor. The end of the groove has a threaded portion which cooperates with a threaded portion of an aperture opposite the groove to permit the anchor to pivot with respect to the bolt to a position where the bolt is threadably engaged and locked in the threaded portions of the anchor, forming a "T" configuration behind the surface of the hollow wall. Thereafter the bolt may be rotated to draw the anchor tightly against the interior of the hollow wall.

REFERENCES:
patent: 231334 (1880-08-01), Kraus
patent: 4196883 (1980-04-01), Einhorn

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