Retractable tool bit having slider type catch mechanism

Details Retractable tool bit having slider type catch mechanism Retractable tool bit having slider type catch mechanism

1991-09-24

1992-12-29

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Means to drive tool

279 79, 279 89, 408239R, 408241R, 901 41, B23B 3110

Patent

active

051746948

ABSTRACT:
A retractable tool bit assembly utilized in conenction with a robotic gripper type and end-effector. The apparatus includes one or more spring loaded nestable or telescoping tubular sections together with a catch mechanism for capturing and holding the tool, such as an allen key, in its retracted position. The innermost tubular section includes a threshold cap and engages and holds the tool. The catch mechanism consists of a slider type mechanism located adjacent a relatively larger outer base sction and includes means for engaging a conically or mushroom shaped rear end portion of the tool when the telescoping sections are moved to a retracted or parked position. The catch mechanism is released upon actuation of a rotary tool drive motor coupled to a circular mount and which holds the base section. When released all the telescoping sections including the tool extends fully outward to a use position.

REFERENCES:
patent: 1259603 (1918-03-01), Conord
patent: 1802053 (1931-04-01), Halborg
patent: 1809273 (1931-06-01), Halborg
patent: 2324852 (1943-07-01), Kopczynski
patent: 2716393 (1955-08-01), Fischer
patent: 2906144 (1959-09-01), McManis
patent: 3762264 (1973-10-01), Scott
patent: 3796464 (1974-03-01), Hansen et al.
patent: 4520550 (1985-06-01), Dunn et al.
patent: 4662771 (1987-05-01), Roe et al.
patent: 4826230 (1989-05-01), Fruchet

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