公开(公告)号：US20180244006A1

公开(公告)日：2018-08-30

申请号：US15967215

申请日：2018-04-30

Applicant: ContiTech Antriebssysteme GmbH

Inventor： Ymte Greydanus ,  Friedemann Schiffer

IPC: B29D29/08 ,  B29C43/02 ,  B29C35/02

Abstract: A device for making a double-sided toothed belt has an inner mold having teeth and an outer mold. The outer mold includes segments arranged parallel to the longitudinal axis of the inner mold and mutually adjacent. The device has a force transmission element arranged on the radial outer side of the segments. A pressure vessel has a cylindrical wall surrounding the force transmission element. The force transmission element is formed as a bellows fastened with two ends in pressure-tight fashion to the pressure vessel. The force transmission element is arranged in a ring-shaped space formed between the wall of the pressure vessel and the radial outer side of the segments. The pressure vessel has a pressure medium bore which opens into the ring-shaped space radially outside the force transmission element. The segments and the inner mold each have one axial passage bore through which fluid can be conducted.

公开(公告)号：US20180154597A1

公开(公告)日：2018-06-07

申请号：US15884234

申请日：2018-01-30

Applicant: ContiTech Antriebssysteme GmbH

Inventor： Ymte Greydanus ,  Peter Lindemann ,  Tim Fiss

IPC: B29D29/10 ,  B32B37/08 ,  B32B37/10 ,  B32B7/06 ,  B32B37/06

CPC classification number: B29D29/103 ,  B32B7/06 ,  B32B37/06 ,  B32B37/08 ,  B32B37/10 ,  B32B2413/00

Abstract: A method for making a V-ribbed belt is made by inserting a first partial blank in the form of a base tube into a cylindrical vulcanization mold having a negative of a V-ribbed profile. The first partial blank is molded into a surrounding negative and thus provided with the V-ribbed profile without vulcanization. A second partial blank made as a top ply tube with a tension strand is inserted into the virtually completely molded-in base tube and is expanded under heat and pressure so that the top ply tube and the base tube are bonded to one another. Thereafter, the latter is molded into the surrounding negative of the vulcanization mold, and the top ply tube and the base tube are vulcanized to form a V-ribbed blank, whereafter the V-ribbed blank is removed from the vulcanization mold and is fed to the cutting device.

公开(公告)号：US10960621B2

公开(公告)日：2021-03-30

申请号：US15967215

申请日：2018-04-30

Applicant: ContiTech Antriebssysteme GmbH

Inventor： Ymte Greydanus ,  Friedemann Schiffer

IPC: B29D29/08 ,  B29C35/02 ,  B29C43/02 ,  B30B11/00 ,  B29C43/36

Abstract: A device for making a double-sided toothed belt has an inner mold having teeth and an outer mold. The outer mold includes segments arranged parallel to the longitudinal axis of the inner mold and mutually adjacent. The device has a force transmission element arranged on the radial outer side of the segments. A pressure vessel has a cylindrical wall surrounding the force transmission element. The force transmission element is formed as a bellows fastened with two ends in pressure-tight fashion to the pressure vessel. The force transmission element is arranged in a ring-shaped space formed between the wall of the pressure vessel and the radial outer side of the segments. The pressure vessel has a pressure medium bore which opens into the ring-shaped space radially outside the force transmission element. The segments and the inner mold each have one axial passage bore through which fluid can be conducted.