Pressing tool with axial stroke working in opposite directions

Patent metadata

Field	Value
Publication number	US-10442064-B2
Application number	US-201514937176-A
Country	US
Kind code	B2
Filing date	Nov 10, 2015
Priority date	Nov 13, 2014
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

A pressing tool for producing a non-detachable pipe connection, including holding means for holding the periphery of at least one first tubular or sleeve-shaped connection element and including sliding means for peripherally holding and axially displacing at least one second tubular or sleeve-shaped connection element. The sliding means is movable along a first axial operating direction towards the holding means to press two interengaging tubular or sleeve-shaped connection elements. The pressing tool easily allows pipe connections to be produced in a more flexible and efficient way in that the sliding means are movable towards the holding means along a second axial operating direction opposite the first axial operating direction to press two interengaging tubular or sleeve-shaped connection elements.

First claim

The invention claimed is:

1. A pressing tool for producing a non-detachable pipe connection, comprising:
a holding element for holding a periphery of at least one first tubular or sleeve-shaped connection element and
a sliding element for peripherally holding and axially displacing at least one second tubular or sleeve-shaped connection element,
wherein the sliding element is movable along a first axial operating direction toward the holding element to press two interengaging tubular or sleeve-shaped connection elements,
wherein the sliding element is movable toward the holding element along a second axial operating direction opposite the first axial operating direction to press two interengaging tubular or sleeve-shaped connection elements,
wherein the sliding element has at least one first slide unit and at least one second slide unit,
wherein the slide units are axially displaceable in opposite directions and are configured to slide relative the holding element in opposite operating directions,
wherein the slide units are guided along at least one common axis, and
wherein the slide units are arranged next to each other in a starting position.

2. The pressing tool according to claim 1 , wherein the slide units are pretensioned resiliently against one another.

3. The pressing tool according to claim 1 ,
wherein the holding element has a first holding unit and a second holding unit which is arranged at a distance from the first holding unit,
wherein the sliding element is arranged between the first holding unit and the second holding unit, and
wherein the first holding unit is configured to prevent movement of the at least one first tubular or sleeve-shaped connection element in the first axial operating direction and the second holding unit is configured to prevent movement of the at least one first tubular or sleeve-shaped connection element in the second axial operating direction.

4. The pressing tool according to claim 3 ,
wherein a first spring unit is arranged between the first holding unit and the first slide unit, and
wherein a second spring unit is arranged between the second holding unit and the second slide unit.

5. The pressing tool according to claim 1 , further comprising:
at least one swivel element configured to swivel transversely to the axial operating directions,
wherein the holding element and the sliding element are provided on the at least one swivel element.

6. The pressing tool according to claim 1 , wherein
wherein a pressing element is provided for displacing the sliding element along the axial operating directions, wherein
wherein the pressing element and the sliding element have mutually associated slide surfaces, and wherein
wherein the slide surfaces are configured to transform a movement of the pressing element transversely to the axial operating directions into an axial displacement of the sliding element, and
wherein first slide surfaces are provided to displace the sliding element in the first axial operating direction and second slide surfaces are provided to displace the sliding element in the second axial operating direction.

7. The pressing tool according to claim 6 , further comprising:
at least one swivel element configured to swivel transversely to the axial operating directions,
wherein the pressing element is provided on the at least one swivel element.

8. The pressing tool according to claim 6 ,
wherein the pressing element has pressing portions which taper in a wedge shape in a direction of the sliding element and on which the first and second slide surfaces of the pressing element are formed,
wherein the sliding element is arranged between the pressing portions, and
wherein the pressing portions at least partly encompass the sliding element in a plane transverse to the axial operating directions.

9. The pressing tool according to claim 1 ,
wherein at least one of the holding element, the sliding element, or the pressing element are configured to be mirror-symmetrical with respect to a radial tool plane, and
wherein the radial tool plane extends transversely to the axial operating directions.

10. The pressing tool according to claim 1 , wherein
at least one of the holding element, the sliding element, or the pressing element are configured to be mirror-symmetrical with respect to an axial tool plane, and
wherein the axial tool plane extends along the axial operating directions.

11. A pressing tool for producing a non-detachable pipe connection, comprising:
a holding element for holding a periphery of at least one first tubular or sleeve-shaped connection element and
a sliding element for peripherally holding and axially displacing at least one second tubular or sleeve-shaped connection element,
wherein the sliding element is movable along a first axial operating direction parallel to an axis of the connection element toward the holding element to press two interengaging tubular or sleeve-shaped connection elements,
wherein the sliding element is movable toward the holding element along a second axial operating direction opposite the first axial operating direction to press two interengaging tubular or sleeve-shaped connection elements,
wherein the sliding element has at least one switchable slide unit, and
wherein the slide unit is, in a first switch position, movable into the first axial operating direction of the pressing tool and, in a second switch position, is movable into the second axial operating direction of the pressing tool.

12. The pressing tool according to claim 11 ,
wherein the switchable slide unit sits on at least one bolt, and,
wherein the slide unit together with the bolt are movable out of the first switch position and into the second switch position.

13. A system for producing a non-detachable pipe connection, comprising:
a first connection element for receiving an end of a pipe to be connected,
a second connection element associated with the first connection element and configured to be axially pushed onto the first connection element, and
a pressing tool for pressing the connection elements,
wherein the pressing tool is configured according to claim 1 .

Assignees

• Viega Tech Gmbh & Co Kg

Inventors

• Hofmann Frank

Classifications

• B25B27/10 Primary

  inserting fittings into hoses · CPC title

• F16L21/002

  Sleeves or nipples for pipes of the same diameter; Reduction pieces (F16L27/00, F16L37/00 take precedence; with elastic sealing rings F16L21/022) · CPC title

• F16L13/08

  Soldered joints · CPC title

• F16L13/141

  by crimping or rolling from the outside · CPC title

• F16L2013/145

  Tools specially adapted therefor · CPC title