Fastener and fastening system

Patent metadata

Field	Value
Publication number	US-10710146-B2
Application number	US-201715785526-A
Country	US
Kind code	B2
Filing date	Oct 17, 2017
Priority date	Oct 20, 2016
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

A fastening system includes a fastener having a bolt with a pull portion having at least one pull groove, and an outer sleeve having a head with an inner face, the bolt being inserted within the sleeve. The fastening system includes a fastener installation tool having a puller with at least one tooth and a front face. The inner face of the head of the sleeve is angled at an included angle measured transverse to a longitudinal axis of the fastener, while the front face of the puller of the fastener installation tool is angled at an included angle measured transverse to a longitudinal axis of the puller. The included angles are chosen to match or be substantially the same. The front face of the puller of the fastener installation tool is adapted to engage the inner face of the outer sleeve of the fastener when the fastener installation tool engages the fastener, and the inner face of the outer sleeve facilitates the receipt of the front face of the puller and the alignment of the at least one tooth of the puller with the at least one pull groove of the bolt by allowing the puller to shift forward or backward to facilitate such alignment.

First claim

What is claimed is:

1. A fastening system, comprising:
a fastener including a bolt having a shank and a pull portion extending from a first end of the shank and including at least one pull groove, and a sleeve adapted to receive the bolt,
wherein the sleeve includes a body having a first end and a head located at the first end, wherein the head includes a first end having an inner face; and
a fastener installation tool including a puller having a front face and at least one tooth that is adapted to engage the at least one pull groove of the pull portion of the bolt, and
wherein the inner face of the sleeve is adapted to receive and engage the front face of the puller of the fastener installation tool such that the front face of the puller is adapted to stop against the inner face of the head of the sleeve of the fastener and the puller is adapted to shift toward or away from the sleeve and align the at least one tooth of the puller with a corresponding one of the at least one pull groove of the pull portion of the bolt.

2. The fastening system of claim 1 , wherein the inner face of the head of the sleeve of the fastener extends at a first included angle measured transversely from a longitudinal axis of the fastener.

3. The fastening system of claim 2 , wherein the front face of the puller of the fastener installation tool is angled at a second included angle measured transversely from a longitudinal axis of the puller of the fastener installation tool.

4. The fastening system of claim 3 , wherein the first included angle is within a range of about 60 degrees to about 180 degrees.

5. The fastening system of claim 4 , wherein the second included angle is within a range of about 60 degrees to about 180 degrees.

6. The fastening system of claim 2 , wherein the front face is concave in shape.

7. The fastening system of claim 2 , wherein the front face is conical in shape.

8. The fastening system of claim 1 , wherein the at least one pull groove includes a plurality of pull grooves, and wherein the at least one tooth includes a plurality of teeth.

9. The fastening system of claim 8 , wherein each of the plurality of pull grooves is an annular groove.

10. The fastening system of claim 1 , wherein the at least one pull groove is a helical groove.

11. A fastener, comprising:
a bolt having a shank and a pull portion extending from a first end of the shank and including at least one pull groove; and
a sleeve adapted to receive the bolt,
wherein the sleeve includes a body having a first end and a head located at the first end, wherein the head includes a first end having an inner face, and wherein the inner face of the sleeve is adapted to receive and engage a front face of a puller of a fastener installation tool such that the front face of the puller is adapted to stop against the inner face of the head of the sleeve of the fastener and the puller is adapted to shift toward or away from the sleeve and align the at least one tooth of the puller with a corresponding one of the at least one pull groove of the pull portion of the bolt.

12. The fastener of claim 11 , wherein the inner face of the head of the sleeve of the fastener extends at a first included angle measured transversely from a longitudinal axis of the fastener.

13. The fastener of claim 12 , wherein the front face of the puller of the fastener installation tool is angled at a second included angle measured transversely from a longitudinal axis of the puller of the fastener installation tool.

14. The fastener of claim 13 , wherein the first included angle is within a range of about 60 degrees to about 180 degrees.

15. The fastener of claim 14 , wherein the second included angle is within a range of about 60 degrees to about 180 degrees.

16. The fastener of claim 11 , wherein the front face is concave in shape.

17. The fastener of claim 11 , wherein the front face is conical in shape.

18. The fastener of claim 11 , wherein the at least one pull groove includes a plurality of pull grooves, and wherein the at least one tooth includes a plurality of teeth.

19. The fastener of claim 18 , wherein each of the plurality of pull grooves is an annular groove.

20. The fastener of claim 11 , wherein the at least one pull groove is a helical groove.

Assignees

• Arconic Inc

Inventors

• Corbett Robert J
• Leavelle Joseph Z

Classifications

• F16B19/1054 Primary

  the pull-mandrel or the like being frangible · CPC title

• F16B2019/1009

  hollow or single-part rivets fastened by a pull-through mandrel · CPC title

• B21J15/022

  Setting rivets by means of swaged-on locking collars, e.g. lockbolts · CPC title

• B21J15/045 Primary

  and swaging locking means, i.e. locking the broken off mandrel head to the hollow rivet · CPC title

• F16B35/04

  with specially-shaped head or shaft in order to fix the bolt on or in an object (locking the bolt against turning in the object by the use of accessory parts F16B39/00) · CPC title