Hand tool with axially repositionable shaft

Details Hand tool with axially repositionable shaft Hand tool with axially repositionable shaft

1997-05-19

1999-08-03

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

811771, B25B 2316

Patent

active

059310650

ABSTRACT:
A hand tool for providing telescoping and axial repositioning of an elongate shaft relative to a handle. The handle includes a first closed end and a second open end which defines a hollowed and axially extending interior within which is securably mounted an intermediate sleeve. The elongate shaft includes a first end which is inserted within the handle and sleeve and a second fastener bit engaging end. A plurality of individual apertures are formed along a selected surface of the elongate shaft and are arranged in axially and spaced apart fashion. A lever mechanism is mounted within apertures in the handle and sleeve and includes a detent which seats within a selected one of the individual apertures in the shaft to maintain the shaft in a locked position. A spring biases the detent in the locked position and is counteracted by a trigger which is depressed to unseat the detent from its associated aperture and to permit the elongate shaft to be axially repositioned and the detent subsequently reseated in a further selected aperture of the shaft which defines a desired and axially repositioned length of the shaft.

REFERENCES:
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patent: 2592978 (1952-04-01), Trimboli
patent: 2758494 (1956-08-01), Jenkins
patent: 2869410 (1959-01-01), Prichard
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patent: 4602890 (1986-07-01), Duda
patent: 5033337 (1991-07-01), Thomas, III
patent: 5099721 (1992-03-01), Reddy, Jr.
patent: 5109737 (1992-05-01), Raber
patent: 5431075 (1995-07-01), Cruz et al.
patent: 5533429 (1996-07-01), Kozak

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