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Drive system with full surface drive contact

A fastener and polygon technology, applied in the field of drive system, which can solve problems such as large hinges, damaged fasteners, fatigue failure, etc.

Active Publication Date: 2017-12-01
ACUMENT INTPROP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increased contact stress at the top of the recess may damage the fastener finish (i.e. coating) and may cause recess failure (reaming)
Increased contact stress (and torsion) on the socket can lead to premature wear, dimple failure and fatigue failure

Method used

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  • Drive system with full surface drive contact
  • Drive system with full surface drive contact
  • Drive system with full surface drive contact

Examples

Experimental program
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Embodiment Construction

[0028] While the invention may be embodied in different forms, specific embodiments are shown in the drawings and described in detail herein, it is to be understood that the disclosure is intended as an illustration of the principles of the invention and is not intended to limit the invention as described. range.

[0029] Various embodiments of the invention are disclosed herein. Each embodiment provides an actuation system with full surface actuation contacts. More specifically, each embodiment includes a fastener, wherein the fastener includes a recess containing a drive surface formed from a polygonal involute or provided in a single arc configuration.

[0030] Regarding the term "involute", an involute is the locus of a point, initially on a base circle, which moves along a tangent circle to a point of tangency of contact such that its straight-line distance is equal to the distance along the arc from the initial point to the corresponding Cut the distance of the instant...

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PUM

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Abstract

A drive system with full surface drive contact. The drive system tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure. An object of an embodiment of the present invention is to provide a drive system with full surface drive contact. An object of an embodiment of the present invention is to provide a drive system that tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure.

Description

[0001] inventor [0002] David C. Goss [0003] Related Applications (Priority Claims) [0004] This application claims the benefit of U.S. Provisional Application No. 62 / 135390, filed March 19, 2015, the contents of which are incorporated herein by reference in their entirety. Background technique [0005] The present invention generally relates to a drive system, such as a drive system including a socket and a fastener, and a punch for forming a recess in a fastener. [0006] Typical fastener driving system designs or geometries create different surface contact patterns between the driving tool (ie socket) and the fastener driving function (ie recess). For example, some drive system geometries produce a "point" contact surface pattern, meaning that when the pulley is rotated to initially contact the recess (near zero reaction torque), it contacts at one point (or at multiple points around the recess) recessed part. [0007] Other drive system geometries produce a "lin...

Claims

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Application Information

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IPC IPC(8): B25B15/00F16B23/00F16B35/04F16B35/06
CPCB25B15/005F16D1/10B25B15/004B21K1/463F16B23/003F16D2001/102B25F5/00
Inventor 戴维·C·高斯
Owner ACUMENT INTPROP LLC
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