Portable dieless hand held power tools

Patent metadata

Field	Value
Publication number	US-12244113-B2
Application number	US-201816166407-A
Country	US
Kind code	B2
Filing date	Oct 22, 2018
Priority date	Apr 14, 2016
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

Portable, hand held, battery operated, dieless, hydraulic crimping tools are provided with a working head and a tool frame. The working head has a head frame with an open access to a working area of the working head. The open access may be in the form of a C-shape. The working head has a nest to receive a crimping member. An indentor is attached to a piston within the tool frame. The piston moves the indentor between a home position adjacent the tool frame and an indenting position where the indentor impacts the crimping member.

First claim

What is claimed is:

1. A dieless crimping tool comprising:
a working head including:
a head frame having a nest, an opening permitting access to the nest, the nest being monolithically formed into the head frame and having a substantially flat base portion and a pair of substantially flat side walls extending from the base portion at an angle relative to the base portion, the nest is configured to receive a crimping member, the nest being accessible from the opening such that the crimping member can pass through the opening and be received in the nest;
a monolithically formed movable indentor having a body, a front face extending from the body, and an impact surface having a pair of walls extending from the front face so that the impact surface is spaced away from the front face, wherein a geometry of the indentor substantially aligns with a geometry of the nest such that when the indentor is in an impacting position, the base portion of the nest is configured to receive the impact surface of the indentor and the pair of walls of the impact surface align with the pair of side walls of the nest; and
a carriage positioned within the head frame and having a pair of spaced apart legs integrally formed into or secured to the indentor body, each leg having a track guide arm configured to be operatively coupled to a guide configured to guide movement of the carriage; and

a tool frame including a piston releasably coupled to the indentor to selectively move the carriage along the guide such that the indentor is movable between a home position and the impacting position.

2. The dieless crimping tool according to claim 1 , wherein the head frame comprises a C-shaped head frame with the opening forming a portion of the C-shaped head frame.

3. The dieless crimping tool according to claim 1 , wherein the base portion and the pair of side walls of the nest form a V-shaped structure.

4. The dieless crimping tool according to claim 1 , wherein the head frame includes an I-beam structure comprising an upper flange at least partially adjacent the nest and the indentor guide, and a lower flange.

5. The dieless crimping tool according to claim 1 , wherein the guide comprises a T-shaped guide forming a portion of the head frame.

6. The dieless crimping tool according to claim 5 , wherein the track guide arms are coupled to the T-shaped guide to limit rotational movement of the indentor when the indentor is moved between the home position and the impacting position, and wherein the track guide arms limit the indentor from flexing toward and away from the T-shaped guide when the indentor is moved between the home position and the impacting position.

7. The dieless crimping tool according to claim 1 , wherein the head frame includes at least one break-away region.

8. The dieless crimping tool according to claim 7 , wherein the at least one break-away region comprises an opening in the head frame.

9. The dieless crimping tool according to claim 7 , wherein the at least one break-away region comprises an annealed region of the head frame.

10. A dieless crimping tool comprising:
a working head including:
a monolithically formed indentor having a body, a front face extending from the body, and an impacting surface having a pair of walls extending from the front face so that the impacting surface is spaced away from the front face;
a head frame having an I-beam structure having an upper flange, a lower flange and a web between the upper flange and the lower flange, a nest monolithically formed into the head frame, and an opening in the head frame permitting access to the nest, the nest being positioned adjacent at least a portion of the upper flange, the nest includes a base portion and a pair of substantially flat side walls extending from the base portion at an angle relative to the base portion, the nest is configured to receive a crimping member, wherein a geometry of the nest substantially aligns with a geometry of the indentor such that when the indentor is in an impacting position, the base portion of the nest is configured to receive the impacting surface of the indentor and the pair of side walls of the impacting surface align with the a pair of side walls of the nest;
a carriage positioned within the head frame and adjacent at least a portion of the upper flange, the carriage having a pair of spaced apart legs integrally formed into or secured to the indentor body, each leg having a track guide arm configured to be operatively coupled to a guide configured to guide movement of the carriage; and

a tool frame having a piston releasably coupled to the indentor that selectively moves the carriage along the guide such that the indentor is movable between a home position and the impacting position.

11. The dieless crimping tool according to claim 10 , wherein the head frame comprises a C-shaped head frame with the opening forming a portion of the C-shaped head frame.

12. The dieless crimping tool according to claim 10 , wherein the base portion and pair of side walls extending from the base portion of the nest comprises a V-shaped structure.

13. The dieless crimping tool according to claim 10 , wherein the guide comprises a T-shaped guide forming a portion of the head frame.

14. The dieless crimping tool according to claim 13 , wherein the track guide arms are coupled to the T-shaped guide to limit rotational movement of the indentor when the indentor is moved between the home position and the impacting position, and wherein the track guide arms limit the indentor from flexing toward and away from the T-shaped guide when the indentor is moved between the home position and the impacting position.

15. The dieless crimping tool according to claim 10 , wherein the head frame includes at least one break-away region.

16. The dieless crimping tool according to claim 15 , wherein the at least one break-away region comprises an opening in the head frame.

17. The dieless crimping tool according to claim 15 , wherein the break-away region comprises an annealed region of the head frame.

18. A dieless crimping tool comprising:
a working head having a head frame, a monolithically formed indentor having a body, a front face extending from the body, and an impacting surface having a pair of walls extending from the front face so that the impacting surface is spaced away from the front face and a carriage, the head frame including a nest monolithically formed into the head frame and a breakaway region, the nest includes a substantially flat base portion and a pair of side walls extending from the base portion forming a V-shape structure, the nest is configured to receive a crimping member, wherein a geometry of the nest substantially aligns with a geometry of the indentor such that when the indentor is in an impacting position, the base portion of the nest is configured to receive the impacting surface of the indentor and the pair of side walls of the impacting surface align with the pair of side walls of the nest, wherein the head frame includes an opening permitting the nest to receive crimping members of various sizes, wherein the base and pair of side walls of the nest align one of the crimping members of various sizes received in the nest opening for impacting by the impacting surface of the indentor, wherein the breakaway region is positioned in the head frame adjacent the base portion of the nest and is configured to permit a portion of the head frame to at least partially breakaway from the head frame and bend outwardly away from the opening while maintaining a connection between the bent portio

Assignees

• Hubbell Inc

Inventors

• Lefavour John David
• Faucher Thomas Romeo
• Brown Lawrence

Classifications

• B25F1/00

  Combination or multi-purpose hand tools (associations of tools for different working operations with one portable power-drive means B25F3/00; {combined stapling and punching tools B25C5/0214}) · CPC title

• H01R43/0427

  fluid actuated hand crimping tools · CPC title

• B25B27/146

  Clip clamping hand tools · CPC title

• B25F5/02 Primary

  Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} · CPC title

• B23P11/005

  by expanding or crimping · CPC title