Multibit hand tool with improved chuck arrangement

Details Multibit hand tool with improved chuck arrangement Multibit hand tool with improved chuck arrangement

1986-03-28

1988-01-05

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

81490, B25G 108

Patent

active

047167963

ABSTRACT:
A multibit hand tool has a plurality of bits provided in a circular pattern within a handle magazine. A rotatable selector cup at the end of the handle permits selection of a desired bit from the magazine and placement in a chuck in the handle. An elongate slot is provided in the cup to permit the manipulation of the bit. The improvement in this hand tool arrangement comprises an adaptation to the chuck and bit ends so that the selected bit end is readily placed within the chuck. This feature is accomplished by providing a number of operative faces on the bit end equal to the number of bits provided in the handle. Similarly, the chuck has a bore presenting a corresponding plurality of internal operative faces for engaging the bit end.

REFERENCES:
patent: 3405749 (1968-10-01), Butler
patent: 4372361 (1983-02-01), Whiteford
patent: 4463788 (1984-07-01), Corona et al.
patent: 4552043 (1985-11-01), Corona et al.

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