Lock device for rotatable tool driving head

Details Lock device for rotatable tool driving head Lock device for rotatable tool driving head

1999-08-18

2000-08-22

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

811778, B25B 1300

Patent

active

061054739

ABSTRACT:
A tool includes a driving head pivotally coupled to a tool member at a pivotal coupler, and a barrel slidably engaged on the tool member and slidable to engage onto the driving head and to lock the driving head to the tool member and to prevent the driving head from rotating relative to the tool member about the pivotal coupler. The driving head may be rotated relative to the tool member about the pivotal coupler when the barrel is disengaged from the driving head. A pin is rotatably engaged through a channel of the pivotal coupler which is extended from the tool member.

REFERENCES:
patent: 3855884 (1974-12-01), McPeak
patent: 4065941 (1978-01-01), Aoki
patent: 4807499 (1989-02-01), Martinez
patent: 4936701 (1990-06-01), Allen et al.
patent: 5236289 (1993-08-01), Salyer

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