Expandable collet bodies with sectional finger-based anti-rotation feature, clips inserts and systems thereof
AssigneeCentrix Aerospace LLC
InventorTravis McClure
Life of this patent
Estimating the term…
Abstract
Expandable collet bodies with sectional finger-based anti-rotation features are disclosed. The collet body comprises not only a plurality of gripping finger as a first part of a two-part anti-rotation means (ARM), but also a first part of a two part translation arresting means (TAM), which may or may not be sectional in nature and the TAM prevents over translation of a collet body within the work piece(s), and cooperates with a second part of the TAM associated with a work piece or an auxiliary structure. In this manner, a collet body inserted into a work piece or auxiliary structure will not accidentally be pushed beyond the blind side of the work piece(s) during insertion or initial clamp-up.
Claims8
A fastener comprising:
- a collet body comprising:
- a cylindrical wall portion positioned at an upper end of the collet body and defining a longitudinal axis and having a threaded inner surface and an outer surface which has a circular shape in cross-section that cuts through the longitudinal axis;
- and
- one or more gripping fingers extended longitudinally from the cylindrical wall portion and separated by one or more slots, each finger having a protrusion at a fingertip, the protrusion comprising a plurality of surfaces;
- and
- a sleeve insert, comprising:
- a cylindrical wall;
- a flange extending outwardly from the cylindrical wall;
- a bore defined between a proximal opening and a distal opening;
- a first protuberance disposed within the bore at the distal opening;
- a proximal side including a chamfered surface that is sloped outward, wherein the chamfered surface includes an upper edge and a lower edge that each have a circular profile;
- and
- a distal side including the first protuberance and a second protuberance;
- wherein the first protuberance extends radially inward;
- wherein the first protuberance is an anti-rotation component;
- wherein the proximal opening is sloped inward;
- wherein the first protuberance has a planar lower surface;
- and
- wherein the first protuberance has a pair of opposing angled side surfaces.
A fastener comprising:
- a collet body comprising:
- a cylindrical wall portion positioned at an upper end of the collet body and defining a longitudinal axis and having a threaded inner surface and an outer surface which has a circular shape in cross-section that cuts through the longitudinal axis;
- and
- one or more gripping fingers extended longitudinally from the cylindrical wall portion and separated by one or more slots, each finger having a protrusion at a fingertip, the protrusion comprising a plurality of surfaces;
- and
- a sleeve insert, comprising:
- a cylindrical wall;
- a flange extending outwardly from the cylindrical wall;
- a bore defined between a proximal opening and a distal opening;
- a first protuberance disposed within the bore at the distal opening;
- a proximal side including a chamfered surface that is sloped outward, wherein the chamfered surface includes an upper edge and a lower edge that each have a circular profile;
- and
- a distal side including the first protuberance and a second protuberance;
- wherein the first protuberance extends radially inward;
- wherein the first protuberance is an anti-rotation component;
- wherein the proximal opening is sloped inward;
- wherein the first protuberance and second protuberance are each symmetric about a radially aligned plane;
- and
- wherein the first protuberance has a sloped upper surface.
Dependencies are inferred from the claim text.