Fastener and fastener installation tool

Patent metadata

Field	Value
Publication number	US-9488213-B2
Application number	US-201514601453-A
Country	US
Kind code	B2
Filing date	Jan 21, 2015
Priority date	Jan 30, 2014
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

A fastening system including a fastener and a fastener installation tool. The fastener includes a pin member having an elongated shank portion with a threaded portion, a stop shoulder located at an end of the threaded portion, and a pull portion extending from the stop shoulder. The stop shoulder includes an inner annular wall extending longitudinally from the end of the threaded portion, and an inner face extending outwardly and obliquely from the shank portion. The inner annular wall and the inner face form an annular receiving area. The fastener installation tool includes a puller having a front face. The receiving area of the fastener is adapted to receive the front face of the fastener installation tool when the puller engages the pull portion of the pin member.

First claim

What is claimed is:

1. A fastening system, comprising:
a fastener having a pin member including an elongated shank portion having a threaded portion, a stop shoulder located at an end of the threaded portion, and a pull portion extended from the stop shoulder, wherein the stop shoulder includes an inner annular wall extending longitudinally from the end of the threaded portion, and an inner face extending outwardly and obliquely from the shank portion, wherein the inner annular wall and the inner face form an annular receiving area; and
a fastener installation tool having a puller with a front face, wherein the receiving area of the fastener receives the front face of the fastener installation tool when the puller engages the pull portion of the pin member.

2. The fastening system of claim 1 , wherein the inner face of the stop shoulder of the pin member extends at a first angle measured transversely from a longitudinal axis of the pin member.

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

4. The fastening system of claim 3 , wherein the second angle is chosen to be substantially the same as the first angle.

5. The fastening system of claim 4 , wherein the first angle is within a range of about 110 degrees to about 170 degrees.

6. The fastening system of claim 5 , wherein the second angle is within a range of about 110 degrees to about 170 degrees.

7. The fastening system of claim 4 , wherein the pull portion of the pin member includes at least one pull groove, and the puller of the fastener installation tool includes at least one tooth that is sized and shaped to engage the at least one pull groove of the pull portion of the pin member.

8. The fastening system of claim 7 , wherein the pull portion of the pin member includes a plurality of pull grooves, and the puller of the fastener installation tool includes a plurality of teeth that is sized and shaped to engage the plurality of pull grooves of the pull portion of the pin member.

9. The fastening system of claim 4 , wherein the inner annular wall and the inner face of the stop shoulder are joined to one another by a radiused portion.

10. The fastening system of claim 4 , further comprising a collar adapted to be swaged onto the threaded portion of the pin member.

11. The fastening system of claim 4 , wherein the pull portion of the pin member includes a breakneck groove located intermediate the stop shoulder and the pull portion of the pin member, wherein the pull portion is adapted to break off from the shank of the pin member at the breakneck groove when a sufficient axial force is applied to the pin member.

12. A fastener, comprising:
a pin member including an elongated shank portion having a threaded portion, a stop shoulder located at an end of the threaded portion, and a pull portion extending from the stop shoulder, wherein the stop shoulder includes an inner annular wall extending longitudinally from the end of the threaded portion, and an inner face extending outwardly and obliquely from the shank portion,
wherein the inner annular wall and the inner face form an annular receiving area that receives a front face of a puller of a fastener installation tool when the puller engages the pull portion of the pin member.

13. The fastener of claim 12 , wherein the inner face of the stop shoulder of the pin member extends at a first angle measured transversely from a longitudinal axis of the pin member.

14. The fastener of claim 13 , wherein the front face of the puller of the fastener installation tool is angled at a second angle measured transverse to a longitudinal axis of the puller.

15. The fastener of claim 14 , wherein the second angle is chosen to be substantially the same as the first angle.

16. The fastener of claim 15 , wherein the first angle is within a range of about 110 degrees to about 170 degrees.

17. The fastener of claim 16 , wherein the second angle is within a range of about 110 degrees to about 170 degrees.

18. The fastener of claim 15 , wherein the pull portion of the pin member includes at least one pull groove, and the puller of the fastener installation tool includes at least one tooth that is sized and shaped to engage the at least one pull groove of the pull portion of the pin member.

19. The fastener of claim 18 , wherein the pull portion of the pin member includes a plurality of pull grooves, and the puller of the fastener installation tool includes a plurality of teeth that is sized and shaped to engage the plurality of pull grooves of the pull portion of the pin member.

20. The fastener of claim 15 , wherein the inner annular wall and the inner face of the stop shoulder are joined to one another by a radiused portion.

21. The fastener of claim 15 , further comprising a collar adapted to be swaged onto the threaded portion of the pin member.

22. The fastener of claim 15 , wherein the pull portion of the pin member includes a breakneck groove located intermediate the stop shoulder and the pull portion of the pin member, wherein the pull portion is adapted to break off from the shank of the pin member at the breakneck groove when a sufficient axial force is applied to the pin member.

Assignees

• Alcoa Inc

Inventors

• Corbett Robert J

Classifications

• F16B19/1063

  with a sleeve or collar sliding over the hollow rivet body during the pulling operation · CPC title

• B21J15/022 Primary

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

• F16B19/05

  Bolts fastening by swaged-on collars (F16B19/08 takes precedence) · CPC title

• F16B35/04 Primary

  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

• B21J15/043

  by pulling a mandrel · CPC title