EP 0016267 B1 19830302 - MATERIAL TENSIONING METHOD AND APPARATUS
Title (en)
MATERIAL TENSIONING METHOD AND APPARATUS
Publication
Application
Priority
EP 79300409 A 19790315
Abstract (en)
[origin: EP0016267A1] For subjecting a continuous strip of metallic-material or stock to an applied high tension for a drawing, straightening or stretching process, apparatus is disclosed which comprises a pair of elastic ring-equipped roll assemblies for holding the material there-between under a high tension applied by the roll assemblies. The elastic ring (5,6) of each roll assembly is capable of elastic deformation which elongatesthe area of the ring in contact with the material (13) along the circumference of the ring as applied tension increases, thus increasing the contact area over which the applied force is distributed evenly. This results in a reduction of the force per unit area. Each elastic ring is mounted on a shaft (1,2). at least one of the shafts being drivable, by way of at least three rollers (3,3a 3b; 4, 4a, 4b) which are interposed between the ring (5,6) and shaft (1,2) for axial rotation and two of which (3,3a; 4,4b) are arranged to bridge the ring over the ring contacting area of the material.
IPC 1-7
IPC 8 full level
B21D 3/12 (2006.01); B21F 9/00 (2006.01); B21F 23/00 (2006.01)
CPC (source: EP)
B21D 3/12 (2013.01); B21F 9/00 (2013.01); B21F 23/00 (2013.01); B21F 23/002 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0016267 A1 19801001; EP 0016267 B1 19830302; DE 2964939 D1 19830407
DOCDB simple family (application)
EP 79300409 A 19790315; DE 2964939 T 19790315