Fastener tool with locking mechanism

Patent metadata

Field	Value
Publication number	US-12036650-B2
Application number	US-201917621323-A
Country	US
Kind code	B2
Filing date	Nov 29, 2019
Priority date	Nov 29, 2019
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

A fastener tool which contains a motor, a drive mechanism connected to the motor and adapted to drive a piston, and a locking module. The locking module includes a rotating member coupled with the drive mechanism and adapted to rotate with a spindle and define a rotation axis; and a receiving member adapted to engage with the rotating member at and engaging portion. The rotating member includes a latch and a biasing member, wherein the biasing member moveably supports the latch in a direction substantially perpendicular to the rotation axis. Therefore, the locking module provides a locking mechanism that prevents back driving of the fastener tool that increases the lifespan and efficiency of the tool.

First claim

What is claimed is:

1. A fastener tool comprising:
a motor;
a drive mechanism connected to the motor and adapted to drive a piston; and
a locking module comprising a rotating member coupled with the drive mechanism and adapted to rotate with a spindle and defining a rotation axis, and a receiving member adapted to engage with the rotating member at an engaging portion;
the rotating member comprising a latch and a biasing member, wherein the biasing member moveably supports the latch in a direction substantially perpendicular to the rotation axis.

2. The fastener tool of claim 1 , wherein the rotating member and the receiving member are coplanar at least at the engaging portion.

3. The fastener tool of claim 1 , wherein the biasing member biases the latch towards the receiving member.

4. The fastener tool of claim 1 , wherein the latch is continuously pivotable between a first position and a second position about a pivot axis parallel to the rotation axis when the rotating member rotates in a first direction.

5. The fastener tool of claim 4 , wherein the latch locks with the receiving member when the rotating member rotates in a second direction such that the latch is locked in the first position.

6. The fastener tool of claim 1 , wherein the latch defines a longitudinal direction and then the biasing member biases the latch from the longitudinal direction at a biasing angle of at least 10 degrees.

7. The fastener tool of claim 1 , wherein the latch defines a longitudinal direction and then the biasing member biases the latch from the longitudinal direction at a biasing angle of between 10 degrees and 20 degrees.

8. The fastener tool of claim 1 , wherein the biasing member is a coil spring.

9. The fastener tool of claim 1 , wherein the rotating member comprises three said latches.

10. The fastener tool of claim 1 , wherein the receiving member comprises repeating geometric features.

11. The fastener tool of claim 4 , wherein each one of the repeating geometric features are asymmetric such that the rotating member is only rotatable in the first direction.

12. The fastener tool of claim 1 , wherein the piston is accommodated in a high-pressure gas cylinder and suitable for a reciprocating motion within the high-pressure gas cylinder.

13. The fastener tool of claim 1 , wherein the piston is connected to a striking element suitable for striking a workpiece.

14. The fastener tool of claim 1 , wherein the drive mechanism comprises a blade fixed to the piston, and a gear coupled to the motor, the gear comprising a plurality of teeth adapted to engage with a plurality of lugs on the blade such that a rotation of the gear is transformed to a linear movement of the blade.

15. A fastener tool comprising:
a motor;
a drive mechanism connected to the motor and adapted to drive a piston;
a locking module comprising a rotating member coupled with the drive mechanism and adapted to rotate with a spindle and defining a rotation axis, and a receiving member adapted to engage with the rotating member at an engaging portion; and
a latch moveably supported by a biasing member on the rotating member;
wherein the latch and the biasing member are adapted to move with the rotating member.

16. The fastener tool of claim 15 , wherein the rotating member and the receiving member are coplanar at least at the engaging portion.

17. The fastener tool of claim 15 , wherein the biasing member biases the latch towards the receiving member.

18. The fastener tool of claim 15 , wherein the latch is continuously pivotable between a first position and a second position about a pivot axis parallel to the rotation axis when the rotating member rotates in a first direction.

19. The fastener tool of claim 18 , wherein the latch locks with the receiving member when the rotating member rotates in a second direction such that the latch is locked in the first position.

20. The fastener tool of claim 15 , wherein the latch defines a longitudinal direction and then the biasing member biases the latch from the longitudinal direction at a biasing angle of between 10 degrees and 20 degrees.

21. The fastener tool of claim 15 , wherein the biasing member is a coil spring.

22. The fastener tool of claim 15 , wherein the fastener tool comprises three latches.

23. The fastener tool of claim 15 , wherein the receiving member comprises repeating geometric features.

24. The fastener tool of claim 18 , wherein each one of the repeating geometric features are asymmetric such that the rotating member is only rotatable in the first direction.

Assignees

• Techtronic Cordless Gp

Inventors

• Tan Yingxiang
• Lin Hailing
• He Xi

Classifications

• B25C1/06

  operated by electric power · CPC title

• B25C1/047 Primary

  Mechanical details · CPC title