Hand tool

• US 4,227,430 A
• Filed: 06/04/1979
• Issued: 10/14/1980
• Est. Priority Date: 06/30/1978
• Status: Expired due to Term

• Current Assignee: Ab Bahco Verktyg
• Original Assignee: Ab Bahco Verktyg
• Inventors: Jansson, Conny, Wahlberg, Ulf
• Primary Examiner(s): Smith, James G.
• Application Number:
  US06/045,192
• Time in Patent Office: 498 Days
• Field of Search: 81/177 M, 81/177 N, 145/61 J, 145/62, 145/50 C, 16/110.5, 206/372, 206/376-378
• US Class Current: 81/177.4
• CPC Class Codes: B25G 1/085 for screwdrivers, wrenches or spanners

Abstract

A rotatable hand tool, especially a screwdriver or other rotating tool for screws or nuts. The tool is of the kind having cavities in its handle for storing at least one, or usually several tool bits, which can optionally be attached to a holder attached to and turned by the holder. Such bits can, for example, constitute screwdriver tips, hexagonal socket keys and hexagonal sockets. The handle consists of two main parts, of which one is rotatably enclosed in the other and has cavities arranged in the form of recesses in its periphery, these recesses being accessible by turning the enclosed part so that one of its recesses coincides with an opening in the other part. A limited axial movement between both handle parts and between coacting locking means thereon enables these parts to turn respective to each other in an outer axial position, and is locking them against rotation in an inner axial position of the enclosed part.

Claims

1. A rotatable hand tool, especially a screwdriver, with a handle having a holder (1) for a tool bit (2) at one end and formed with handle cavities (4) for storing at least one such bit (2) which fits the holder (1), characterized in that the handle consists of an outer tubular part (5) also forming one end of the handle, and a rotor (6) accommodated in the tubular part (5), said rotor simultaneously forming the opposing free end of the handle, the cavities (4) being disposed about the rotor (6) and consisting of radial recesses in the periphery thereof, while the tubular part has an opening (12) which, by mutual rotation between the rotor (6) and the tubular part (5) can be localized radially outside an optional recess (4) in the rotor, thereby allowing removal and replacement of a bit from and into the rotor, said rotor (6) being movably connected to the tubular part (5) with limited axial movement, their being coacting locking means (13, 14) on the rotor and in the tubular part disposed such that when rotor and tubular part are pressed axially towards each other, the rotor and tubular part are non-rotatably locked to each other, and when rotor and tubular part are moved slightly in the opposite axial direction said locking means allow the rotor to rotate in relation to the tubular part for adjusting the opening (12) therein the relation to the recesses (4) in the rotor.

2. A tool as claimed in claim 1, characterized in that the rotor (6) forms the free end (15) of the handle, while the tubular part (5) forms the opposite end of the handle, forming the end carrying the holder (1).