US 12,453,998 B2Granted

Device for the internal bending of pipes for pipelines

AssigneeBendforce GmbH

InventorOliver Baum

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Abstract

The invention relates to a device for the internal bending of pipes (100), in particular of coated pipes, for pipelines with a base body (11) which can be positioned in the pipe and which has on at least one side (12), preferably the underside, at least one support surface (13) with an inner wall (101) of a pipe (100) to be bent, wherein the base body (11) has a support surface (13) opposite, preferably the upper side, on which at least one tool for introducing a bending force into the pipe (100) is movably provided, wherein the tool is movable relative to the base body (11) via at least one actuator (18, 20) for introducing the bending force. The invention provides that the tool is provided as a tool element (21) which has at least two bending force introduction sections (28, 29) for introducing the bending force into the pipe (100), which are each movable relative to the base body (11) by at least one actuator (18, 20).

Claims20

Dependent claims

Device for the internal bending of pipes for pipelines, comprising a base body positioned in a pipe to be bent, the base body comprising

on at least one side, at least one support surface for an inner wall of the pipe;
and
at least one movable tool on a side opposite the support surface for introducing a bending force into the pipe the at least one movable tool being movable relative to the base body via at least one actuator for introducing the bending force;
wherein;
the at least one movable tool comprises a tool element which has at least two bending force introduction sections for introducing the bending force into the pipe, and the bending force introduction sections can be moved relative to the base body by at least one bending force introduction section actuator each;
the at least two bending force introduction sections are disposed in an outer region of the tool element;
and
the tool element includes at least one elastic section between the at least two bending force introduction sections connecting the at least two bending force introduction sections.

5 more elements

Dependencies are inferred from the claim text.