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US 5,308,185 AGranted
Method and means of fastening two parts with an internally threaded folded fastener
OwnerCharles E. Laueinventor
Life of this patent
Estimating the term…
Abstract
Two mechanical components are interconnected, for example, the two principal parts of a pedal rod by forming the clevis with a progressive die so that threaded portions are provided on opposite sides of an opening and are formed and shaped strictly by compression without rotation. The work piece is then folded so that the threaded portions are in register and the shaft part of the pedal rod is threaded in place and adjusted to take up the tolerances in the linkage. The two parts are locked together either by crimping, spot welding or by a lock nut, or by joining out of sync thread segments.
Claims12
In combination, a first part comprising a strip form ductile metal member of
- elongated configuration having spaced apart surfaces with each of said surfaces being means for deformably displacing to form projections extending upwardly from said surfaces and recesses extending into said surfaces thereby to provide thread portions which are press formed without rotation,
- said first part having an opening extending therethrough at a location between said thread portions,
- said first part being folded back upon itself on fold lines extending laterally of said first part on opposite longitudinal sides of said opening,
- said first part being folded so that said threaded portions in said spaced apart surfaces are placed in complemental registration with one another, said spaced apart surfaces being means for cooperating with one another to form a threaded bore inwardly of said opening and,
- a second part comprising an externally threaded cylindrical part sized and shaped to be received in said opening and engaging said first part in threaded engagement with said threaded portions.
2 more elements
A pedal rod comprising,
- a shaft part and a head part being means for connecting together in adjustable relationship to take up the tolerances in a linkage,
- said shaft part comprising a rod-like element having a ball formed at one end,
- said shaft part having a circumferentially extending shoulder formed at an intermediate portion thereof to bottom a spring, and
- an externally threaded shank portion formed at its other end being means for attachment to the head part,
- said head part comprising a sheet form member having first and second legs folded back upon itself to form a flat shoulder at one end through which extends an opening sized to receive said shank of said shaft part, and disposing said legs in parallel relation to one another,
- each of said legs having a threaded portion formed therein by compression without rotation so that the two legs together cooperate to form a threaded bore being means for receiving the shank of the shaft part in threaded assembly,
- whereby the two parts of the pedal rod can be longitudinally adjusted with respect to one another by threaded rotation,
- each of said legs being formed to include alternate recesses and ears so that upon folding of the legs, the ears and recesses may be fitted together to be means for assisting in locking the two parts in final assembly with one another.
5 more elements
A pedal rod comprising;
- a shaft part and a head part being means for connecting together in adjustable relationship to take up the tolerances in a linkage,
- said shaft part comprising a rod-like element having a ball formed at one end, an externally threaded shank portion formed at its other end being means for attachment to the head part,
- said head part comprising a sheet form member having first and second legs folded back upon itself to form a flat shoulder at one end through which extends an opening sized to receive said shank of said shaft part, and disposing said legs in parallel relation to one another to form a clevis part,
- each of said legs having a threaded portion formed therein by compression without rotation so that the two legs together cooperate to form a threaded bore being means for receiving the shank of the shaft part and threaded assembly,
- whereby the two parts of the pedal rod can be longitudinally adjusted with respect to one another by threaded rotation, and means for locking the parts in firm assembly with one another.
2 more elements
Dependencies are inferred from the claim text.