Screwdriver

Details Screwdriver Screwdriver

1999-08-11

2000-07-18

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

81436, 811772, B25B 2300

Patent

active

060891335

ABSTRACT:
The present invention is related to a screwdriver in which a shaft lever with polygon socket is inserted into the central hole of the screwdriver handgrip so that a turning shaft to facilitate force application is plugged from the rear end of the handgrip into the socket in order to perform a rapid rotation of the shaft lever; the other end of the shaft lever can be connected to a extension shaft to be in a coupled state while an application shaft for screwdriver head can be plugged into the inner hole of the extension shaft, and the screwdriver head is inserted into the socket of the application end of the application shaft to perform screwing, wherein the application shaft for screwdriver head can be designed to be section-type, and the application shaft can be stretched inside of the connection inner hole of the extension shaft and shaft lever by means of an engaging member fitted to the outer circumference of the extension shaft so that the exposing length is adjustable; in addition, a freely turning sleeve can be mounted between the handgrip and the extension shaft to be a holding supporting point in performing a rapid screwing.

REFERENCES:
patent: 2592978 (1952-04-01), Trimboli
patent: 5003850 (1991-04-01), Harkins
patent: 5836223 (1998-11-01), Lin

Affiliated with

Also associated with

Rating

Screwdriver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Screwdriver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Screwdriver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2025418