Handheld punch tool

Patent metadata

Field	Value
Publication number	US-11292067-B2
Application number	US-201816054343-A
Country	US
Kind code	B2
Filing date	Aug 3, 2018
Priority date	Aug 4, 2017
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A handheld punch tool includes a housing defining a first axis, a motor contained within the housing, the motor having a motor shaft defining a second axis, and a head coupled to the housing and rotatable relative to the housing about a third axis. The head includes a drive member reciprocable along the third axis in response to rotation of the motor shaft about the second axis and a punch coupled to the drive member and reciprocable along a fourth axis in response to reciprocation of the drive member along the third axis. The third axis is perpendicular to the first axis, and the fourth axis is parallel to the third axis such that rotation of the head about the third axis varies a position of the punch relative to the housing.

First claim

What is claimed is:

1. A handheld punch tool comprising:
a housing defining a first axis;
a motor contained within the housing, the motor having a motor shaft defining a second axis;
a drive member reciprocable along a third axis in response to rotation of the motor shaft about the second axis;
a head coupled to the housing and rotatable relative to the housing about the third axis, the head including
a die defining a passageway, and
a punch coupled to the drive member and reciprocable within the passageway along a fourth axis in response to reciprocation of the drive member along the third axis,
wherein the die includes a first opening in communication with the passageway and a second opening in communication with the passageway, the second opening and the first opening positioned on opposite sides of the fourth axis; and

a debris collection container removably coupled to the head, the debris collection container configured to receive chips generated during operation of the handheld punch tool,
wherein the debris collection container is rotatable together with the head about the third axis,
wherein the third axis is perpendicular to the first axis, and
wherein the fourth axis is parallel to the third axis such that rotation of the head about the third axis varies a position of the punch relative to the housing.

2. The handheld punch tool of claim 1 ,
wherein the housing includes a battery receptacle,
wherein the handheld punch tool further comprises a battery pack at least partially insertable into the battery receptacle along the first axis to couple the battery pack to the battery receptacle, and
wherein the battery back is configured to supply power to the motor.

3. The handheld punch tool of claim 1 , further comprising a drive assembly coupling the motor shaft to the drive member, wherein the drive assembly is disposed axially between the motor and the head along the second axis.

4. The handheld punch tool of claim 3 , wherein the head is rotatable relative to the housing between a plurality of rotational positions while the drive member is coupled to the drive assembly.

5. The handheld punch tool of claim 3 , wherein the drive assembly includes:
an output member coupled to the motor shaft, and
an eccentric coupled to the output member,
wherein the eccentric is configured to reciprocate the drive member along the third axis in response to rotation of the output member.

6. The handheld punch tool of claim 1 , wherein the head includes a clamp assembly coupled to the drive member via a C-shaped clip such that the clamp assembly is rotatable about the third axis relative to the drive member.

7. The handheld punch tool of claim 6 , wherein the clamp assembly includes a clamping recess that receives the punch to removably couple the punch to the clamp assembly.

8. The handheld punch tool of claim 1 , wherein the debris collection container is removably coupled to the head in one of a first position in which the debris collection container is configured to receive chips through the first opening, or a second position in which the debris collection container is configured to receive chips through the second opening.

9. The handheld punch tool of claim 8 , further comprising a plug removably coupled to the first opening when the debris collection container is in the second position and to the second opening when the debris collection container is in the first position.

10. The handheld punch tool of claim 1 , further comprising:
a drive assembly coupling the motor shaft to the drive member; and
an auxiliary cutting mechanism coupled to the drive assembly between the motor shaft and the drive member.

11. The handheld punch tool of claim 10 , wherein the drive assembly includes a ring gear rotatable about a fifth axis transverse to the second axis, and wherein the auxiliary cutting mechanism is rotatable about the fifth axis in response to rotation of the ring gear.

12. The handheld punch tool of claim 11 , wherein the drive assembly includes
an input member configured to receive torque from the motor shaft,
a first pinion coupled for co-rotation with the input member, the first pinion meshed with the ring gear to rotate the ring gear about the fifth axis in response to rotation of the first pinion,
an output member having an eccentric configured to reciprocate the drive member in response to rotation of the output member, and
a second pinion coupled for co-rotation with the output member, the second pinion meshed with the ring gear to rotate in response to rotation of the ring gear about the fifth axis and thereby drive the output member.

13. The handheld punch tool of claim 12 , wherein the ring gear is positioned axially between the first pinion and the second pinion along the first axis.

14. The handheld punch tool of claim 10 ,
wherein the housing includes a battery receptacle,
wherein the handheld punch tool further comprises a battery pack at least partially insertable into the battery receptacle along the first axis to couple the battery pack to the battery receptacle, and
wherein the battery back is configured to supply power to the motor.

15. The handheld punch tool of claim 14 , wherein the auxiliary cutting mechanism extends from the housing between the head and the battery receptacle.

16. A handheld punch tool comprising:
a housing defining a first axis;
a motor contained within the housing, the motor having a motor shaft defining a second axis;
a drive member reciprocable along a third axis in response to rotation of the motor shaft about the second axis;
a head coupled to the housing and rotatable relative to the housing about the third axis, the head including
a die defining a passageway, and
a punch coupled to the drive member and reciprocable within the passageway,
wherein the die includes a first opening in communication with the passageway and a second opening in communication with the passageway, the second opening and the first opening positioned on opposite sides of the passageway; and

a debris collection container configured to be removably coupled to the head in each of a first position in which the debris collection container is configured to receive chips generated during operation of the handheld punch tool through the first opening, and a second position in which the debris collection container is configured to receive chips generated during operation of the handheld punch tool through the second opening,
wherein the debris collection container is rotatable together with the head about the third axis in both the first position and the second position.

17. A handheld punch tool comprising:
a housing defining a first axis;
a motor contained within the housing, the motor having a motor shaft defining a second axis;
a drive member reciprocable along a third axis in response to rotation of the motor shaft about the second axis;
a head coupled to the housing and rotatable relative to the housing about the third axis, the head including
a die defining a passageway, and
a punch coupled to the drive member and reciprocable within the passageway,
wherein the die includes a first opening in communication with the passageway and a second opening in communication with the passageway, the second opening and the first opening positioned on opposite sides of the passageway;

a debris collection container configured to be removably coupled to the head in each of a first position in which the debris collection container is configured to receive chips generated during operation of the handheld punch tool thro

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Street William E
• Wekwert James

Classifications

• B21D28/12

  Punching using rotatable carriers · CPC title

• B23D27/04 Primary

  actuated by electric power · CPC title

• B23D15/12

  characterised by drives or gearings therefor · CPC title

• B21D28/26

  in sheets or flat parts · CPC title