Back to results
US 5,344,267 AGranted
Self-drilling blind rivet
OwnerSven E. J. Stenberg, Curt G. Nordstrominventors
Life of this patent
Estimating the term…
Abstract
A self-drilling blind rivet comprising a rivet sleeve and an upsetting pin passing the rivet sleeve at least partly and projecting from one end of the rivet sleeve. A drill bit is attached to the other end of the rivet sleeve either directly on the sleeve or on one end of the upsetting pin.
Claims32
A self-drilling blind rivet comprising:
- a longitudinally extending sleeve having a longitudinally extending central hole which opens at a first end of said sleeve;
- an upsetting pin axially received in said hole and extending out of said hole through said first end, so as to have an internal portion disposed in said hole, and an external portion disposed out of said hole beyond said first end;
- grippable means of non-circular transverse cross-sectional shape provided on one of said sleeve and said pin to form a rotatable member, said grippable means being accessible to a turning tool from externally of said hole, for bodily rotating said rotatable member about the longitudinal axis of said sleeve and said pin;
- and
- a drill bit mounted in a slot provided on said rotatable member so as to protrude axially beyond a second end of said sleeve opposite from said first end, said drill bit being a planar drill bit that is made of a harder material than both said sleeve and said pin, said slot having axially extending side walls and a transverse bottom wall, said bottom wall having a V-shape projection which mates with a V-shaped gap in said drill bit, and opposed, clamping projections provided on the side walls extending transversely into the slot for engaging clamping recesses in the drill bit to secure said drill bit in said slot.
2 more elements
A self-drilling blind rivet comprising:
- a first member constituted by a longitudinally extending sleeve having a longitudinally extending central cavity which opens at a first end of said sleeve;
- a second member constituted by an upsetting pin axially received in said cavity and extending out of said cavity through said first end, so as to have an internal portion disposed in said cavity, and an external portion disposed out of said cavity beyond said first end;
- grippable means provided on one of said first and second members so as to be accessible to a turning tool from externally of said cavity, for bodily rotating said member having grippable means about the longitudinal axis of said first and second members;
- and
- a drill blade, having planar, axially extending sides, mounted in a slot provided on said member having grippable means so as to protrude axially beyond second end of said sleeve opposite said first end, said drill blade being formed of a material that is more durable than both the material of which said sleeve is made and the material of which said pin is made, when used as a drill blade;
- said drill blade having a V-shaped gap that mates with a V-shaped projection projecting from said member having grippable means into said slot, said drill blade having opposed recesses that engage opposed, transverse clamping projections on said member having grippable means extending in the slot to secure said drill blade to said one member.
3 more elements
A self-drilling blind rivet comprising:
- a rivet sleeve having oppositely positioned first and second ends, said rivet sleeve having a bore that extends at least part of the way therethrough, the bore opening to the second end of the rivet sleeve;
- an upsetting pin having first and second ends, a portion of said upsetting pin being positioned in the bore in the rivet sleeve and the second end of the upsetting pin extending out of the second end of the rivet sleeve;
- and
- a drill bit mounted in a slot formed on one of said first end of the rivet sleeve and said first end of the upsetting pin, said drill bit being a planar drill bit which is fabricated of a material that is different from the material from which the upsetting pin and the rivet sleeve are fabricated;
- said slot having axially extending side walls and a transverse bottom wall, said bottom wall having a V-shaped axial projection which mates with a V-shaped gap in a mounting end of said drill bit, said side walls having opposed, clamping projections extending transversely into the slot for engaging clamping recesses in the drill bit to secure said drill bit in said slot.
2 more elements
Dependencies are inferred from the claim text.