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hex screwdriver

A hexagonal, angled technology used in tooling to drive fasteners that can solve problems such as stripping, failure, and premature fatigue

Active Publication Date: 2022-07-22
SNAP ON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to this point contact engagement, the fastener may become prematurely fatigued, stripped and failed due to the high stress concentration imparted on the hex wall of the fastener at the point of contact

Method used

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Embodiment Construction

[0015] While the invention is susceptible to many different forms of embodiment, embodiments of the invention, including the preferred embodiment, are illustrated in the drawings and will be described in detail herein, with the understanding that this disclosure is to be considered to be of the principles of the invention examples, and are not intended to limit the broad aspects of the invention to the embodiments shown. As used herein, the term "present invention" is not intended to limit the scope of the claimed invention, but is a term used to discuss exemplary embodiments of the present invention for purposes of explanation only.

[0016] The present invention broadly relates to tools such as hex drivers and drill bits suitable for engaging fasteners. In one embodiment, the tool broadly includes an outer geometry adapted to engage the inner wall or plane of the fastener with a larger area than prior designs using point-type contact. This reduces stress on the fastener and...

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Abstract

The present invention relates to tools such as hex drivers and drills suitable for engaging fasteners. The tool includes an outer geometry adapted to engage the inner wall or plane of the fastener with a larger area than existing designs using point-type contact. This reduces stress on the fastener and damage or deformation to the fastener's inner walls.

Description

technical field [0001] This application relates generally to tools for driving fasteners, and more particularly to driving tools, as well as drivers and sockets for tools. Background technique [0002] Various wrenches and tools are commonly used to apply torque to workpieces, such as threaded fasteners. The workpiece can be any number of different sizes and shapes and accessories. Therefore, many tools include a driver suitable for engaging and rotating different workpieces. For example, with a typical bolt or screw with a hex head, the outer wall of the hex-shaped driver engages the hex wall of the fastener in point contact, allowing the tool to apply torque to the workpiece. However, due to this point contact engagement, the fastener may become prematurely fatigued, peeled, and failed due to the high stress concentrations imparted on the hex wall of the fastener at the point of contact. SUMMARY OF THE INVENTION [0003] The present invention broadly relates to tools ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/06
CPCB25B13/065B25B15/008B25B15/001B25B15/004B25B15/005B25B23/0035
Inventor 本杰明·T·舒尔茨
Owner SNAP ON INC