Device head of a hydraulically actuable tool

Patent metadata

Field	Value
Publication number	US-2023405788-A1
Application number	US-202017754496-A
Country	US
Kind code	A1
Filing date	Oct 8, 2020
Priority date	Oct 11, 2019
Publication date	Dec 21, 2023
Grant date	—

Abstract

A device head of a hydraulically actuatable tool includes an opposing holder which is integrally formed on the device head and which receives a first tool, and including a second tool that can be moved towards the opposing holder by a hydraulic piston. A cylindrical formation formed integrally with the device head and is provided relative to the hydraulic piston. The device head has an integrally formed toothing recess for the angular fixed, but also changeable, arrangement of a retaining rod.

First claim

1 . Device head of a hydraulically actuatable tool, comprising a counter holder, which is formed integrally in one piece on the device head and which has a receptacle for a first tool, and comprising a second tool, which can be moved towards the counter holder by a hydraulic piston, wherein a cylindrical formation likewise integrally in one piece with the device head with respect to the hydraulic piston is provided, wherein further the second tool can be moved between an initial position and an operating end position by the hydraulic piston, wherein the hydraulic piston can act on a piston shaft, which is connected in one piece to a receptacle for the second tool, and the piston shaft can be received completely in the cylindrical formation in the initial position, wherein furthermore the counter holder molds a first tool carrier, and a second tool carrier, which is formed in one piece and of uniform material with the piston shaft extending in the cylindrical formation, can be moved towards the first tool carrier, wherein the tool carrier forms a receptacle for the second tool, which is preferably retained in a replaceable manner, characterized in that the second tool carrier is formed in an essentially elongated rectangular manner with respect to a cross section transversely to a hydraulic piston axis, that longitudinal outer edges, which in the use state run perpendicular, are formed in an elongated rectilinear manner, while shorter outer edges viewed transversely thereto are in each case guided along a curved line, and that this curved line has a common radius, which refers to the axis, wherein a radius dimension is adapted to a diameter dimension of a surrounding jacket wall of the cylindrical formation.

2 . The device head according to claim 1 , wherein the device head further has a toothing recess formed integrally in one piece for the angularly fixed, but changeable arrangement of a retaining rod.

3 . The device head according to claim 2 , wherein in a longitudinal cross section of the device head, the toothing recess is formed in a laterally offset manner, but in overlap to the cylindrical formation.

4 . The device head according to claim 2 , wherein the toothing recess is formed concentrically circumferentially with respect to a central through opening.

5 . The device head according to claim 1 , wherein the second tool can be moved between an initial position and an operating end position by the hydraulic piston, that the piston shaft has a receptacle, which, compared to the piston shaft, is enlarged transversely to a direction of movement of the hydraulic piston and which is assigned to the second tool, and that in the operating end position the receptacle is held transversely to the direction of movement in an undercut formed on the device head.

6 . The device head according to claim 1 , wherein the receptacle for the second tool and the piston shaft are formed in one piece.

7 . The device head according to claim 1 , wherein in the initial position, the receptacle is displaceable transversely to the direction of movement for the assembly and disassembly.

8 . The device head according to claim 1 , wherein the device head is connected to a hydraulic hose, which, for the free movability of the device head as compared to a hydraulic aggregate generating a hydraulic pressure, is connected to the hydraulic aggregate on the other end.

9 . The device head according to claim 1 , wherein the device head is rigidly connected to a body casting tool part.

10 . The device head according to claim 9 , wherein the hydraulic aggregate is arranged in the body casting tool part.

11 . The device head according to claim 1 , wherein the second tool can be moved between an initial position and an operating end position by the hydraulic piston, and that the hydraulic piston is received completely in the cylindrical formation in the initial position.

12 . The device head according to claim 1 , wherein based on the initial position of the hydraulic piston in continuation of a direction of movement of the hydraulic piston from the operating end position into the initial position outside of the region surrounding the hydraulic piston, the cylindrical formation has a connector receptacle for the body casting tool part or the hydraulic hose.

13 . The device head according to claim 12 , wherein the connector receptacle has a free inner diameter, which is larger than the diameter of the cylindrical formation in a region, in which the cylindrical formation surrounds the hydraulic piston in the initial position.

14 . The device head according to claim 1 , wherein the hydraulic piston comprises a piston shaft and a cover part arranged on the end facing away from the second tool.

15 . The device head according to claim 14 , wherein over a portion of its length, the piston shaft is formed as hollow cylinder.

16 . The device head according to claim 15 , wherein a clamping screw retains the cover part by passing through the hollow cylinder.

17 . The device head according to claim 12 , wherein an adapter part can be arranged on the connector receptacle, and that a piston bottom is located opposite a piston-side front surface of the adapter part in the initial position.

Assignees

• Klauke Gmbh Gustav

Inventors

• Lehr Andreas
• Frenken Egbert

Classifications

• H01R43/042

  Hand tools for crimping · CPC title

• B25B27/02

  for connecting objects by press fit or detaching same {(B25D1/16 takes precedence)} · CPC title

• B25F5/02

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

• B21D39/04 Primary

  of tubes with tubes; of tubes with rods {(crimped pipe joints as such F16L13/14)} · CPC title

• B25F5/005 Primary

  Hydraulic driving means · CPC title