Tool handle

• US 4,542,667 A
• Filed: 03/12/1984
• Issued: 09/24/1985
• Est. Priority Date: 03/12/1984
• Status: Expired due to Fees

• Current Assignee: Young H. Jang
• Original Assignee: Young H. Jang
• Inventors: Jang, Young H.
• Primary Examiner(s): Jones, Jr., James L.
• Application Number:
  US06/588,220
• Time in Patent Office: 561 Days
• Field of Search: 81/177 E, 81/177 A, 81/177 D, 81/177 PP, 145/61 L, 145/65, 145/77, 145/75, 145/76
• US Class Current: 81/177.2
• CPC Class Codes: B25G 1/005 for screwdrivers, wrenches or spanners with additional levers, e.g. for increasing torque

Abstract

A handle is disclosed herein for detachably connecting with a selected tool having a central rod terminating at one end in a cross bar having pivotally mounted grip members adapted to rotate laterally from opposite sides of a handle body from a storage position to an operative position whereby the members are coextensive in linear alignment. A spring biasing mechanism yieldably urges the members to either of the alternate positions.

Claims

1. A tool handle for applying a twisting or torque loads to a tool, the combination comprising:

an elongated rounded body having opposite ends;

a pair of elongated grip members pivotally carried adjacent one end of said body adapted to be deployed between a storage position substantially parallel to the longitudinal axis of said body and an operative position outwardly and laterally extending from opposite sides of said body;

biasing means operably carried on said body for applying a yieldable pressure or load on said grip members constituting an over-the-center toggle mechanism so as to bias said grip members in either said storage position or said operated position;

load transference means interconnecting said grip members with said body for transferring torque load forces therebetween;

said load transference means includes an elongated rod coaxially disposed along the central longitudinal axis of said body terminating in a cross bar having a yoke provided in the opposite ends of said cross bar;

each of said grip members is pivotally coupled to each of said cross bar yokes respectively so that each of said grip members move between said storage and said operative positions.

2. The invention as defined in claim 1 wherein:

said biasing means includes a bias bar extending across said cross bar yokes and resilient means forcibly urging said bias bar thereagainst in a yieldable manner so as to normally bear against the ends of said grip members.

3. The invention as defined in claim 2 wherein:

said biasing means constitutes an over-the-center toggle mechanism to normally bias said grio members into either of said storage or operative positions wherein the ends of grip members include a flat surface engageable by the opposite ends of said bias bar.

4. The invention as defined in claim 3 wherein:

said body provided with a pair of storage recesses on opposite sides thereof for receiving said grip members respectively in their storage position.

5. The invention as defined in claim 4 wherein:

said body is tapered and said grip member pivotal connections are located adjacent the greater diameter of said body taper so that a portion of the free ends of said grip members reside beyond the periphery of said body; and

said last mentioned portions serving as grasping portions for manually deploying said grip members from said storage position to said operative position.

6. The invention as defined in claim 5 wherein:

said grip member free ends terminate in a slot for insertably accepting a fingernail of the user for starting said last mentioned deployment.