US 11,986,873 B2
Connecting sheet metal end sections by means of forming
Roland Ruegenberg, Bad Sobernheim (DE)
Appl. No. 16/972,789
Filed by Roland Ruegenberg, Bad Sobernheim (DE)
PCT Filed Jun. 26, 2019, PCT No. PCT/EP2019/067070
§ 371(c)(1), (2) Date Dec. 7, 2020,
PCT Pub. No. WO2020/002466, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 10 2018 115 382.1 (DE), filed on Jun. 26, 2018.
Prior Publication US 2021/0245223 A1, Aug. 12, 2021
Int. Cl. B21D 39/02 (2006.01); B21D 13/02 (2006.01); B21D 5/12 (2006.01)
CPC B21D 13/02 (2013.01) [B21D 39/023 (2013.01); B21D 5/12 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method for connecting two sheet metal end sections that are arranged on top of one another by means of forming, the method comprising:
providing a double sheet metal element, which comprises the two sheet metal end sections arranged on top of one another and extending in an extension plane;
creating a connecting section along a connecting line between the two sheet metal end sections, the connecting line in the extension plane, the creating a connecting section including,
introducing a first depression, which extends along the connecting line, into the double sheet metal element, and
creating a first folded section of the double sheet metal element along the connecting line, wherein two mutually opposing inside walls of the first depression are pressed against one another; and
perpendicularly orienting the connecting section relative to the extension plane of the double sheet metal element by bending over a portion of the double sheet metal element including the connecting section along a first bending axis, the first bending axis extending parallel to the connecting line, so that the connecting section extends perpendicularly to the extension plane.