Granted Patent B2

US 12,654,215 · App. 18/613,823 · Granted Jun 16, 2026

Inventors: Tobias Heep (Steinbach, DE); Fridtjof Krische (Mainz, DE); Rafael Gottschling (Selters, DE); Lukas Walther (Hünstetten, DE); Klaus Kirschenmann (Wiesbaden, DE); Felix Kraft (Idstein, DE); Yasar Akbaba (Neu-Isenburg, DE); Lukas Diehl (Niedernhausen, DE)

B21D7/06B21D7/085B25F5/001

Abstract

Claims (24)

1 . A portable electric power tool for bending elongate objects comprising:

a housing having a handle portion extending along a first axis;

an electric motor and a transmission at least partially arranged within the handle portion, the electric motor having a motor output shaft extending along the first axis,

a rod extending from a first rod end disposed within the housing to a second rod end disposed outside the housing;

the transmission operably coupled to the rod adjacent the first rod end for converting torque into a linear force to linearly translate the rod within and relative to the housing; and

a bend mechanism having a support portion fixed relative to the housing and a bias portion operatively coupled to the second rod end to effectuate linear movement of the bias portion relative to the support portion in response to the linear translation of the rod for causing force to be applied by the bend mechanism to an elongate object in use at different locations along the length of the elongate object for bending the elongate object.

2 . The portable electric power tool of claim 1 , wherein the rod extends linearly along a second axis; and the transmission includes a bevel gear arrangement for redirecting torque flowing along the first axis and input to the bevel gear arrangement in use so that torque output from the bevel gear arrangement flows along the second axis.

3 . The portable electric power tool of claim 2 , wherein the angle between the first axis and the second axis is between 45 degrees to 145 degrees.

4 . The portable electric power tool of claim 3 , wherein the angle between the first axis and the second axis is approximately 90 degrees.

5 . The portable electric power tool of claim 1 , wherein the electric motor is located entirely within the handle of the tool.

6 . The portable electric power tool of claim 2 , wherein the transmission comprises at least one planetary gear stage for transferring torque from the electric motor along the first axis in use.

7 . The portable electric power tool of claim 6 , wherein the at least one planetary gear stage is at least partially located within the handle.

8 . The portable electric power tool of claim 7 , wherein the at least one planetary gear stage is entirely located within the handle of the tool.

9 . The portable electric power tool of claim 2 , further comprising a battery releasably connected to a base of the handle portion so that a notional line extending between the battery and the motor output shaft extends along the first axis.

10 . The portable electric power tool of claim 1 , wherein the rod extends linearly along the first axis such that the electric motor, the transmission and the bend mechanism are arranged along the first axis in axial sequence one after the other.

11 . The portable electric power tool of claim 10 , further comprising a battery releasably located on the same said first axis.

12 . The portable electric power tool of claim 1 , wherein the support portion defines first and second abutment portions separated by a space between them through which a third abutment portion, defined by the bias portion is moved in use and wherein upon locating the elongate object between the support portion and the bias portion and causing linear movement of the bias portion relative to the support portion in use the first, second and third abutment portions are each caused to exert a force on the elongate object for bending the elongate object.

13 . The portable electric power tool of claim 12 , wherein the distance between the first and second abutment portions is adjustable.

14 . The portable electric power tool of claim 1 , wherein the tool is configured such that linear movement of the bias portion in a first direction relative to the support portion causes bending of the elongate object in use or the tool is configured such that linear movement of the bias portion in a second direction, opposite to the first direction, relative to the support portion causes bending of the elongate object in use.

15 . The portable electric power tool of claim 1 , wherein the electric motor is a brushless DC motor.

16 . The portable electric power tool of claim 1 , wherein the power tool is a rebar bending tool.

17 . The portable electric power tool of claim 1 , wherein the power tool is a linear conduit bending tool.

18 . The portable electric power tool of claim 1 , wherein the power tool is a pipe or tube bending tool.

19 . The portable electric power tool of claim 1 , wherein the bias portion is operably connected to the second rod end by a connector, and a flexible bellow extends from the connector to the housing in surrounding relationship with a portion of the rod.

Assignments (1)

Priority Claims (2)

Continuity (1)

References Cited (22)