Hole-drilling and fastener-driving combination tool

Details Hole-drilling and fastener-driving combination tool Hole-drilling and fastener-driving combination tool

1979-03-23

1980-08-26

Simpson, Othell M.

Compound tools

Wrench

30158, B25F 300

Patent

active

042187940

ABSTRACT:
A combination tool capable of drilling a hole in a workpiece, driving a fastener into that hole, and withstanding the vibrational environment of a rotary hammer is provided. An adaptor having a tapered portion which is inserted in the chuck of a power tool, such as a rotary hammer, has a polygonal drive transmitting configuration on its other end. A longitudinal bore extending at least partially along the axis of the adaptor receives a drill bit. The bit and bore have mating external and internal tapers to insure driving engagement. Once the bit has drilled a hole in a workpiece, a drive collar is slipped onto the polygonal drive transmitting portion of the adaptor and the fastener-engaging recess thereof used to drive a self-tapping fastener into that hole.

REFERENCES:
patent: 260314 (1882-06-01), Parks et al.
patent: 986829 (1911-03-01), Kasperson
patent: 1209362 (1916-12-01), Turner
patent: 2482995 (1949-09-01), Willis
patent: 3484114 (1969-12-01), Rodin
patent: 3932904 (1976-01-01), Nilsson
patent: 3965510 (1976-06-01), Ernst
patent: 3973784 (1976-08-01), Smith
patent: 4007795 (1977-02-01), Gawron
patent: 4107800 (1978-08-01), Jorgensen

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