Hydraulic power tool

Patent metadata

Field	Value
Publication number	US-12145243-B2
Application number	US-202117235793-A
Country	US
Kind code	B2
Filing date	Apr 20, 2021
Priority date	Oct 7, 2016
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

A working head for a hydraulic power tool. The working head includes a head frame and a first moveable die head configured to move along the working head frame. The first moveable die head is configured to receive a first moveable die comprising a first body length and a second die head is adapted to receive a second die comprising a second body length. At least one of the moveable die or the stationary die comprises an elongated die.

First claim

The invention claimed is:

1. A working head for a power tool operated by a user on a work piece, the working head comprising:
a stationary die head;
a moveable die head; and
a moveable die formed as a unitary body and configured to be received by the moveable die head;
the moveable die having a first horizontal surface and a second horizontal surface and a curved outer surface, the first horizontal surface including a first alignment feature for alignment of a target location indicating a crimp or cut location of the work piece, and the curved outer surface including a second alignment feature;
the moveable die head having a third alignment feature;
the first alignment feature configured to be a groove, that extends outside of the moveable die head to be visible to the user when the moveable die is seated within the moveable die head; and
the third alignment feature extending longitudinally along a direction of movement of the moveable die and configured to align with the first alignment feature and the second alignment feature; and
the stationary die head further comprising a fourth alignment feature;
wherein the first alignment feature, the second alignment feature, the third alignment feature, and the fourth alignment features are collinear.

2. The working head of claim 1 , wherein the moveable die head includes
a main body;
an upper surface;
a lower surface; and
an end face that is situated at a distal end of the moveable die head, the end face vertically extending along the main body; and
wherein the third alignment feature extends on the end face of the moveable die head.

3. The working head of claim 2 , wherein the third alignment feature extends along the upper surface of the moveable die head.

4. The working head of claim 1 , and further comprising:
a head frame having a guide surface that separates the moveable die head from the stationary die head;
the stationary die head coupled to the head frame, the stationary die head having a vertical face, and an inclined face.

5. The working head of claim 4 , wherein the fourth alignment feature extends along the inclined face.

6. The working head of claim 5 , wherein the fourth alignment feature extends along the vertical face.

7. The working head of claim 4 , wherein the guide surface includes a fifth alignment feature that extends along the guide surface; and
wherein the moveable die head is situated above the guide surface.

8. The working head of claim 1 , wherein at least one of the first alignment feature, the second alignment feature, the third alignment feature, the fourth alignment feature is at least one of colored, painted, laser etched, coated; or labeled with a sticker.

9. The working head of claim 1 , wherein at least one of the first alignment feature, the second alignment feature, the third alignment feature, or the fourth alignment feature is a groove.

10. The working head of claim 1 , wherein at least one of the first alignment feature, the second alignment feature, the third alignment feature, or the fourth alignment feature is a dashed line or a continuous line of constant width, and
wherein the first alignment feature and the second alignment feature are separated by a ledge of the moveable die.

11. The working head of claim 1 , wherein the first alignment feature extends along the entire length of the first horizontal surface.

12. The working head of claim 1 , wherein the moveable die includes a notch;
wherein the moveable die head includes a lip; and
wherein when the moveable die head receives the moveable die, the lip of the moveable die head retains the notch of the moveable die.

13. A working head for a power tool operated by a user on a work piece, the working head comprising:
a moveable die configured to be received by a moveable die head;
the moveable die having a first alignment feature and a second alignment feature, the first alignment feature, for alignment of a target location indicating a crimp or cut location of the work piece, extends outside of the moveable die head to be visible to a user when the moveable die is seated in the moveable die head;
the moveable die head having a third alignment feature on an upper surface of the moveable die head;
a stationary die head having a fourth alignment feature;
the first alignment feature, the second alignment feature, the third alignment feature and the fourth alignment feature each extending in the direction of movement of the moveable die and in a direction perpendicular to the movement of the moveable die;
the first alignment feature being at least one of colored, painted, laser etched, coated, or labeled with a sticker.

14. The working head of claim 13 ,
wherein when the moveable die head receives the moveable die, the first alignment feature aligns with the third alignment feature, and
wherein the first alignment feature and the second alignment feature are separated by a ledge of the moveable die.

15. The working head of claim 14 , and further comprising:
a head frame;
the stationary die head coupled to the head frame, the stationary die head having a vertical face, and an inclined face,
wherein the fourth alignment feature extends along the inclined face.

16. The working head of claim 13 , wherein the first alignment feature is a dashed line or a continuous line of constant width.

17. A working head for a power tool, the working head comprising:
a moveable die received by a moveable die head, the moveable die including:
a die plate that vertically extends;
a first horizontal surface situated at a first end of the die plate, the first horizontal surface extending beyond a thickness of the die plate and including a first alignment feature for alignment of a target crimp, the first alignment feature extends outside of the moveable die head to be visible to a user when the moveable die is seated in the moveable die head;
a second horizontal surface situated at a second end of the die plate, the second horizontal surface extending beyond the thickness of the die plate; and
a curved outer surface extending between the first horizontal surface and the second horizontal surface, the curved outer surface including a second alignment feature that is separated from the first alignment feature at a ledge;

the die plate, the first horizontal surface, and the second horizontal surface collectively define an I-beam structure; and
a distal end surface of the die plate, a distal end surface of the first horizontal surface, and a distal end surface of the second horizontal surface lying in the same plane; and
the curved outer surface opposite the distal end surface of the die plate.

18. The working head of claim 17 , wherein the curved outer surface of the moveable die is dimensioned to be received by a curved die holder surface of the moveable die head, the moveable die head including a third alignment feature configured to be aligned with the first and second alignment features.

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Koski Jonathan
• Marks Troy
• Norquist Eric
• Ballard James
• Kanack Kris

Classifications

• H01R43/048

  Crimping apparatus or processes (H01R43/042 takes precedence) · CPC title

• B21D39/048

  using presses for radially crimping tubular elements · CPC title

• B23P19/04

  for assembling or disassembling parts · CPC title

• B25F3/00

  Associations of tools for different working operations with one portable power-drive means; Adapters therefor · CPC title

• H01R43/0428

  Power-driven hand crimping tools · CPC title