Key locking stud installation tool

Patent metadata

Field	Value
Publication number	US-10882170-B2
Application number	US-201815915580-A
Country	US
Kind code	B2
Filing date	Mar 8, 2018
Priority date	Mar 8, 2018
Publication date	Jan 5, 2021
Grant date	Jan 5, 2021

Abstract

A tool for installing a stud having a plurality of locking keys into a workpiece bore includes a main body, an actuator within the main body, a nosepiece adjacent the main body and having an anvil portion, and a mandrel disposed within the nosepiece. The actuator includes a movable piston, a shaft extending axially from the piston, and a coupler on a shaft end opposite the piston. The mandrel includes a threaded head portion and a body portion, and is releasably secured to the coupler.

First claim

The invention claimed is:

1. A tool for installing a stud having a plurality of locking keys into a workpiece bore, the tool comprising: a main body; an actuator within the main body, the actuator comprising: a movable piston; a shaft extending axially from the piston; and a female coupler on a shaft end opposite the piston, the female coupler comprising a spring-biased release sleeve; a nosepiece adjacent the main body and having an anvil portion; and a mandrel disposed within with the nosepiece, the mandrel comprising: a threaded head portion; and a body portion; wherein the mandrel is releasably secured to the female coupler; wherein the release sleeve has a first position allowing a radial movement of a locking member and a second position blocking said movement; and wherein the mandrel is freely rotatable about an axis of the tool when the release sleeve is in the second position.

2. The tool of claim 1 , wherein the female coupler further comprises the locking member.

3. The tool of claim 2 , wherein the mandrel body portion comprises a necked-down region.

4. The tool of claim 3 , wherein a shape of the necked-down region corresponds to a shape of the locking member.

5. The tool of claim 1 , wherein the actuator is a pneumatic actuator.

6. The tool of claim 1 , wherein the nosepiece is releasably secured to the main body.

7. An installation assembly comprising:
the tool of claim 1 ;
a stud threadedly engaged with the mandrel head portion;
a washer surrounding a stud shank portion.

8. The assembly of claim 7 , wherein the stud comprises a plurality of locking keys.

9. The assembly of claim 7 , wherein the mandrel secures the stud to the tool.

10. A tool for installing a stud having a plurality of locking keys into a workpiece bore, the tool comprising: a main body; an actuator within the main body, the actuator comprising: a movable piston, a shaft extending axially from the piston; and a female coupler on a shaft end opposite the piston, the female coupler comprising a spring-biased release sleeve; a nosepiece adjacent the main body and having an anvil portion; and a mandrel disposed within with the nosepiece, the mandrel comprising: a threaded head portion; and a body portion; wherein the mandrel is releasably secured to the female coupler; wherein the release sleeve has a first position allowing a radial movement of a locking member and a second position blocking said movement; and wherein the female coupler further comprises a lever extending through a nosepiece slot to permit movement of the lever to shift the release sleeve from the second position to the first position.

11. The tool of claim 10 , wherein the female coupler further comprises the locking member.

12. The tool of claim 11 , wherein the mandrel body portion comprises a necked-down region.

13. The tool of claim 12 , wherein a shape of the necked-down region corresponds to a shape of the locking member.

14. The tool of claim 10 , wherein the actuator is a pneumatic actuator.

15. The tool of claim 10 , wherein the nosepiece is releasably secured to the main body.

16. An installation assembly comprising:
the tool of claim 10 ;
a stud threadedly engaged with the mandrel head portion;
a washer surrounding a stud shank portion.

17. The assembly of claim 16 , wherein the stud comprises a plurality of locking keys.

18. The assembly of claim 16 , wherein the mandrel secures the stud to the tool.

Assignees

• United Technologies Corp

Inventors

• Welch Derek T
• Tucker Ricky D

Classifications

• B25B27/0014

  motor-driven · CPC title

• B25B31/00 Primary

  Hand tools for applying fasteners (nailing or stapling tools B25C) · CPC title

• B25B28/00 Primary

  Portable power-driven joining or separation tools (B25B21/00 takes precedence) · CPC title

• B25D2222/21

  Metals · CPC title

• B25D9/06

  Means for driving the impulse member · CPC title