Handle for a hand tool, especially a screwdriver grip

• US 6,606,925 B1
• Filed: 11/06/2000
• Issued: 08/19/2003
• Est. Priority Date: 05/04/1998
• Status: Expired due to Fees

• Current Assignee: Engelbert Gmeilbauer
• Original Assignee: Engelbert Gmeilbauer
• Inventors: Gmeilbauer, Engelbert
• Primary Examiner(s): Smith, James G.
• Application Number:
  US09/674,798
• Time in Patent Office: 1,016 Days
• Field of Search: 811/771, 811/772, 811/775, 811/778.5, 814/89, 814/36, 814/39, D 8/82, D 8/83, D 8/85, D 8/107
• US Class Current: 81/177.1
• CPC Class Codes: B25B 13/461 with concentric driving and driven member
• CPC Class Codes: B25B 15/00 Screwdrivers hand-driven gear-operated B25B17/00; impact screwdrivers B25B19/00; portable power-driven B25B21/00 ; screwdrivers specially adapted for osteosynthesis A61B17/8875
• CPC Class Codes: B25B 23/16 Handles in general B25G
• CPC Class Codes: B25G 1/063 for screwdrivers, wrenches or spanners

Abstract

A handle for hand tool, which handle includes an elongate handle body and at least two polygonal locating shanks provided on the handle body as to tool fasteners onto which commercially available inserts are fittable. The shanks include a first shank arranged on a first end face of the body coaxially with respect to a longitudinal axis of the handle body, and at least one further shank aligned at an angle and at a distance from the first shank in the longitudinal direction.

Claims

1. A handle for a hand tool, consisting of:

an elongate handle body, and three polygonal locating shanks provided on the handle body as tool fastening means onto which commercially available tool inserts are fittable via locator sleeves of the tools, the shanks including a first shank configured as an axial screwdriver shank arranged on a first end face of the body coaxially with respect to a longitudinal axis of the handle body, a second shank configured as a T-shank arranged perpendicular to the longitudinal axis and central to the handle body, and a third shank configured as a revolver shank arranged in a zone of a second end face of the body opposite the first end face at an angle of 90°

to 120°

with respect to the longitudinal axis, the shanks being recessed at least partially in the handle body.

2. A handle as defined in claim 1, wherein the third shank is arranged at an angle of 120°

with respect to the first shank.

3. A handle as defined in claim 1, wherein the shanks have polygonal profiles which interact with corresponding polygonal profiles of locating sleeves of the tool inserts.

4. A handle as defined in claim 3, wherein the polygonal profiles are one of square and hexagonal.

5. A handle as defined in claim 1, wherein the shanks are recessed entirely in the handle body so that end faces of the shanks terminate essentially flush with an outer surface of the handle body, a cylindrical clearance for introducing the tool insert sleeves being respectively provided concentrically around each of the shanks.

6. A handle as defined in claim 1, wherein the first shank protrudes at least partially from the handle body while the second and third shanks are recessed entirely into the handle body.

7. A handle as defined in claim 1, wherein the handle is a single part.

8. A handle as defined in claim 7, wherein the handle is made of one of plastic and metal.

9. A handle as defined in claim 1, wherein the handle body is made of a material which can be shaped and the shanks are made of one of steel and a casting material and are embedded in the material of the handle in a twist-resistant manner.

10. A handle as defined in claim 9, wherein the handle body is made of one of plastic, hard rubber and cast aluminum.

11. A handle as defined in claim 9, wherein the shanks are embedded in the body as polygonal inserts having at least two shanks.

12. A handle as defined in claim 9, wherein the shanks in each case have a polygonal shank end and an anchorage end, the anchorage end having a form which one of has been hammered out wide and flat in a shovel shape and cut open in an axially dovetail shape.

13. A handle as defined in claim 9, wherein the three shanks are combined to from a one-part shank insert having a polygonal steel profile configuration such that the first and second shanks are in each case provided on a correspondingly bent profiled bar, while the third shank is provided on a second profiled bar which is fastened on the first profiled bar by at least one of a form fit, adhesive bonding, and welding.

14. A handle as defined in claim 9, wherein the second and third shanks are combined to form a U-profiled bar, the first shank being a separate element.

15. A handle as defined in claim 14, wherein the shanks of the U-profiled bar are respectively arranged at 90°

to 120°

relative to the longitudinal axis, while the first shank is at an angle of 0°

.

16. A handle as defined in claim 1, wherein an arresting device is respectively set radially into the shanks so as to interact with corresponding recesses in tool insert sleeves.

17. A handle as defined in claim 9, wherein the shanks are separate elements embedded in the body.