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Combination tool

A technology of combining tools and tool heads, which is used in the manufacture of tools, wrenches, screwdrivers, etc., which can solve the problems of impossible visual inspection of the rotational movement and fit of tools, hindering normal use, and unable to smoothly realize the combined use of machines.

Inactive Publication Date: 2009-06-03
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Furthermore, in order to fit the screwdriver end, the socket of the socket wrench must be moved vertically each time manually against the force of the helical spring for the force-transmitting connection between the socket wrench end and the screwdriver end, which is movable on the shank, which is serious. Interfering with normal use, i.e. the socket of the box wrench remains above the screw head when the tool is rotated, making it impossible to visually check the rotational movement and fit of the tool
Therefore, it cannot be successfully used in combination with the machine

Method used

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  • Combination tool

Examples

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Embodiment Construction

[0015] figure 1 An exploded perspective view of the combination tool 10 according to the invention is shown. The tool shaft 11 is formed from an outer part 13 and an inner part 12 . The inner part 12 has at its end a first tool bit 14 formed on it in the form of a screwdriver bit for Torx screws. The outer part 13 then has at its end a second tool bit 15 formed on it in the form of a hex key. In the area of ​​the shank, the outer side 17 of the inner part 12 and the inner side 18 of the outer part 13 are designed such that a force-transmitting connection can be produced. In this way, a long service life and reliable torque transmission can be guaranteed. Here, this is achieved by a polygonal design in which the outer side 17 and inner side 18 are partly matched to one another. Furthermore, according to the illustrated embodiment of the invention, the combination tool 10 has a lockable fastening element 16 in the form of a pin mechanism 20 with a spring 21 . The pin can be...

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Abstract

The present invention provides a combination tool, including a tool shaft (11) with an inner part (12) and an outer part (13), a first tool head (14) that is integrally formed on the inner part (12) and a differently designed second tool head (15) that is integrally formed on the outer part (13). The tool shaft (11) is realized in such a way that it can be inserted into a machine and features at least one holding element (16) for mounting a tool head (14, 15) thereon in a locking fashion.

Description

technical field [0001] The present invention relates to a combination tool. Background technique [0002] For example, a manual screwdriver in the form of a combination tool which can be used as a screwdriver and socket wrench is known from German publication DE2117797. It introduces a hand tool which, in addition to the screwdriver head, also includes a socket wrench slot connected to it for force transmission. Here, the force of the coil spring installed on the screwdriver handle can be overcome by axial movement. Select which hand tool end to use. [0003] The hitherto known combination of functional ends of different sizes on a hand tool is limited in use because it does not provide a combination of two functional ends for a tool used on a machine (for example an electric machine). Only one such end can be manually selected and used in the hand tool, for example a Phillips or slotted screwdriver end, or an external functional end, for example a polygon socket wrench en...

Claims

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Application Information

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IPC IPC(8): B25B23/16B25B23/00B25B15/02B25B13/06
CPCB25B15/001B25B13/06
Inventor 弗朗兹·迪尔迈克尔·舒马赫格哈德·凯勒
Owner GM GLOBAL TECH OPERATIONS LLC
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