Expansion dowel

Details Expansion dowel Expansion dowel

1985-07-08

1987-09-01

Smith, Gary L.

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

Having separate expander means

Frangible member

411 45, 411 61, F16B 1306

Patent

active

046905987

ABSTRACT:
An expansion dowel is made up of an expansion sleeve and an expansion body with a radially outer conically shaped surface. To expand the sleeve, the expansion body is pulled into the leading end of the sleeve. The leading end of the sleeve is connected to the expansion body by two elongated webs. A bridge section on the end of each web forms the connection to the expansion body and the bridge section is breakable under expansion conditions. The expansion dowel can be formed from a single blank of sheet metal in a forming operation.

REFERENCES:
patent: 1062993 (1913-05-01), Newhall
patent: 2293491 (1942-08-01), Cox
patent: 4407618 (1983-10-01), Kimura

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