EP 2834021 A1 20150211 - DRIVE DEVICE FOR TRANSMITTING MOTION TO A ROLL
Title (en)
DRIVE DEVICE FOR TRANSMITTING MOTION TO A ROLL
Title (de)
ANTRIEBSVORRICHTUNG ZUR ÜBERTRAGUNG VON BEWEGUNG AN EINE ROLLE
Title (fr)
DISPOSITIF D'ENTRAÎNEMENT POUR TRANSMETTRE UN MOUVEMENT À UN CYLINDRE
Publication
Application
Priority
- IT MI20120544 A 20120403
- EP 2013056822 W 20130329
Abstract (en)
[origin: US2013255343A1] A drive shaft for transmitting motion to a roll of a tube rolling stand comprising a telescopic body, a slide and a support base. The telescopic body is fixed by one end with a cardan joint to the drive shaft of the gearbox, and on the other end has a fitting for attaching the roll. The slide is hinged to the support base and may rotate under the bias of a jack to either engage or release the telescopic body. A snap-action locking device, contained within the telescopic body, comprises a cylinder, on which two rocker arms are hinged, and a spring which spreads the rocker arms making the two teeth fit into two holes in the wall of the cylinder, when the drive shaft is at its maximum working length. The carriage has two pistons to work on the two rocker arms thus freeing the locking device and allowing the telescopic sliding of the cylinder in the cylinder and the downward rotation of the drive shaft.
IPC 8 full level
B21B 35/14 (2006.01); F16C 3/03 (2006.01)
CPC (source: EP RU US)
B21B 35/00 (2013.01 - US); B21B 35/14 (2013.01 - EP RU US); B21B 17/00 (2013.01 - EP US); Y10T 29/49544 (2015.01 - EP US)
Citation (search report)
See references of WO 2013149969A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 2013255343 A1 20131003; AR 090570 A1 20141119; CN 104220180 A 20141217; CN 104220180 B 20160302; EP 2834021 A1 20150211; EP 2834021 B1 20170201; IT MI20120544 A1 20131004; RU 2584363 C1 20160520; SA 113340440 B1 20151108; WO 2013149969 A1 20131010
DOCDB simple family (application)
US 201313855097 A 20130402; AR P130101065 A 20130403; CN 201380018761 A 20130329; EP 13718804 A 20130329; EP 2013056822 W 20130329; IT MI20120544 A 20120403; RU 2014144081 A 20130329; SA 113340440 A 20130403