Methods and apparatus for an enhanced driving bit
First Claim
1. A driver bit for a fastener, comprising:
- a body having;
a shank portion at a first end of the body;
a mid-body section extending from the shank portion;
a driving portion extending from the mid-body section to a second end of the body, wherein the driving portion comprises;
a shoulder surface tapering from the mid-body portion towards a longitudinal axis of the body by an angle between about thirty degrees and about eighty degrees relative to a sidewall of the mid-body portion; and
a plurality of driving surfaces extending along the longitudinal axis from the shoulder surface to the second end of the body, wherein the plurality of driving surfaces comprise a length of less than two tenths of an inch.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods and apparatus for an enhanced driving bit according to various aspects of the present technology include a bit comprising a plurality of driving surfaces having a limited length and a shoulder portion positioned between the driving surfaces and a mid-body portion of the bit. The length of the driving surfaces is selected to allow complete insertion into a recessed socket area of a fastener such that the entire driving surface is positioned within the recessed socket area. The shoulder surface is configured to distribute localized stresses away from the driving surfaces to the mid-body portion more efficiently to reduce a potential for breakage of the driving surfaces during use.
16 Citations
22 Claims
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1. A driver bit for a fastener, comprising:
a body having; a shank portion at a first end of the body; a mid-body section extending from the shank portion; a driving portion extending from the mid-body section to a second end of the body, wherein the driving portion comprises; a shoulder surface tapering from the mid-body portion towards a longitudinal axis of the body by an angle between about thirty degrees and about eighty degrees relative to a sidewall of the mid-body portion; and a plurality of driving surfaces extending along the longitudinal axis from the shoulder surface to the second end of the body, wherein the plurality of driving surfaces comprise a length of less than two tenths of an inch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A driver bit for a fastener, comprising:
a body having; a shank portion at a first end of the body; a mid-body section extending from the shank portion; a driving portion extending from the mid-body section to a second end of the body, wherein the driving portion comprises; a shoulder surface tapering from the mid-body portion towards a longitudinal axis of the body by an angle between about thirty degrees and about eighty degrees relative to a sidewall of the mid-body portion to form a first length; and a plurality of driving surfaces extending along the longitudinal axis from the shoulder surface to the second end of the body, wherein the plurality of driving surfaces comprise a second length of between about one-half and one and one-half times that of the first length. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of forming a driver bit, comprising:
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forming a drive for a hammer, wherein the drive comprises; a plurality of driving surfaces extending from an end of the body along a longitudinal axis of the drive, wherein each of the plurality of driving surfaces comprises a length of less than about two tenths of an inch; and a shoulder surface tapering from plurality of driving surfaces away from the longitudinal axis of the drive by an angle between about sixty degrees and about eighty degrees relative to a sidewall of the drive; coupling the drive and hammer to a header machine; cutting a wire blank to a pre-determined length; positioning the cut wire blank adjacent to a die; heating the cut wire blank; and inserting the heated wire blank into the drive in a blow from the header machine, wherein the drive forms the driving portion. - View Dependent Claims (20, 21, 22)
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Specification