Expandable collet bodies with sectional finger-based anti-rotation feature, clips, inserts and systems thereof
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. 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.
1. 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; and
a first protuberance disposed within the bore at the distal opening;
wherein the first protuberance extends radially inward from an interior surface of the cylindrical wall;
wherein the first protuberance is profiled to fit in a space between two gripping fingers in a collet body and prevent rotation of the two gripping fingers of the collet body; and
wherein the proximal opening is sloped inward.
2. The sleeve insert of claim 1 , further comprising:
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 includes a planar lower surface, a sloped upper surface, and two opposing sidewalls that each extend between the planar lower surface and the sloped upper surface;
wherein the second protuberance includes a planar lower surface, a sloped upper surface, and two opposing sidewalls that each extend between the planar lower surface and the sloped upper surface; and
wherein the distal opening includes two opposing curved surfaces.
3. The sleeve insert of claim 2 , wherein the first and second protuberances are each symmetric about a radially aligned plane.
4. The sleeve insert of claim 1 , wherein the first protuberance has a sloped upper surface.
5. The sleeve insert of claim 1 , wherein the first protuberance has a planar lower surface.
6. The sleeve insert of claim 1 , wherein the first protuberance has a pair of opposing angled side surfaces.
7. The sleeve insert of claim 1 , wherein the flange includes a proximal surface with a planar section.
8. The sleeve insert of claim 1 , wherein a periphery of the flange is circular.
9. The sleeve insert of claim 1 , wherein the first protuberance forms a monolithic shape.
10. A sleeve insert in a fastening system, comprising:
a cylindrical wall;
a flange extending outwardly from the cylindrical wall;
a chamfered surface extending from a periphery of the flange;
a sloped surface extending inward from the chamfered surface;
a bore extending between an upper opening and a lower opening;
a first protuberance disposed within the bore at the lower opening and extending radially inward from an inner surface of the bore; and
a second protuberance disposed within the bore at the lower opening and extending radially inward from the inner surface of the bore;
wherein the first and second protuberances are each profiled to fit in a space between two gripping fingers in a collet body and inhibit rotation of the two gripping fingers of the collet body;
wherein the first and second protuberances extend radially inward;
wherein the first protuberance includes a planar lower surface, a sloped upper surface, and two opposing sidewalls that each extend between the planar lower surface and the sloped upper surface;
wherein the second protuberance includes a planar lower surface, a sloped upper surface, and two opposing sidewalls that each extend between the planar lower surface and the sloped upper surface;
wherein the chamfered surface includes an upper edge and a lower edge that each have a circular profile;
wherein a portion of the periphery of the flange has a circular profile;
wherein the first protuberance and the second protuberance are symmetrically arranged in relation to a radially aligned plane; and
wherein the lower opening includes two opposing curved surfaces.
11. The sleeve insert of claim 10 , wherein the first and second protuberances form monolithic shapes.
12. The sleeve insert of claim 10 , wherein the opposing sidewalls are angled towards one another.
13. A sleeve insert in a fastening system, comprising:
a cylindrical wall;
a flange extending outward from the cylindrical wall;
a chamfered surface extending from a periphery of the flange;
a sloped surface extending inward from the chamfered surface;
a bore defined between an upper opening and a lower opening;
a first protuberance disposed within the bore at the lower opening and extending radially inward from an inner surface of the bore; and
a second protuberance disposed within the bore at the lower opening and extending radially inward from an inner surface of the bore;
wherein the first and second protuberances are each profiled to fit in a space between two gripping fingers in a collet body and inhibit rotation of the two gripping fingers of the collet body;
wherein the first and second protuberances extend radially inward;
wherein the first protuberance includes a planar lower surface, a sloped upper surface, and two opposing sidewalls that each extend between the planar lower surface and the sloped upper surface;
wherein the second protuberance includes a planar lower surface, a sloped upper surface, and two opposing sidewalls that each extend between the planar lower surface and the sloped upper surface;
wherein the flange includes a chamfered surface with an upper edge and a lower edge that have a circular profile;
wherein a portion of the periphery of the flange has a circular profile;
wherein the first protuberance and the second protuberance are symmetrically arranged in relation to a radially aligned plane;
wherein the lower opening includes two opposing curved surfaces; and
wherein the opposing sidewalls are angled towards one another.
14. The sleeve insert of claim 13 , wherein the cylindrical wall forms a monolithic structure.
15. The sleeve insert of claim 14 , wherein the lower opening is symmetric about two radially aligned axes.