Portable drill with built-in chuck key

Details Portable drill with built-in chuck key Portable drill with built-in chuck key

1980-03-31

1982-04-13

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

Tool-support

With tool-retaining means

81 90A, 279 1K, 408241R, B23B 4500

Patent

active

043245129

ABSTRACT:
A power tool such as a drill, for example, including a modified Jacobs chuck and incorporating a chuck key permanently mounted in the power tool housing and a main shaft locking device for locking the main shaft when the chuck key is used to manipulate, i.e., open or close, the chuck and spring biasing means for normally retaining the main shaft locking device and the chuck key out of the operating position so that the tool can operate freely.

REFERENCES:
patent: 2119986 (1938-06-01), Dremel
patent: 2211216 (1940-08-01), Oster
patent: 2807732 (1957-09-01), Kurtovich
patent: 3728038 (1973-04-01), Gage
patent: 3872951 (1975-03-01), Hastings, Jr.

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