EP 0255740 A1 19880210 - Drive unit for draw benches.
Title (en)
Drive unit for draw benches.
Title (de)
Antrieb für Ziehbänke.
Title (fr)
Entraînement pour bancs d'étirage.
Publication
Application
Priority
IT 8339186 A 19860806
Abstract (en)
Drive unit for draw benches which is suitable to provide carriages (24) bearing draw grippers (27) with a required, coordinated to-and-fro movement, a radial cam (l3) cooperating with each carriage (24) and pressing on a roller (l4) borne on a first shaft (l5) able to move axially with a first rack (l6) with which a pinion (l7) is engaged that is coaxial with and solidly fixed to a gearing-up gear wheel (l8) acting on a second rack (25) included on the carriage (24), a desired preferred ratio existing between the pinion (l7) and the gear wheel (l8), the pinion (l7) and gear wheel (l8) having an axis which is rotary but not displaceable.
IPC 1-7
IPC 8 full level
B21C 1/30 (2006.01)
CPC (source: EP)
B21C 1/30 (2013.01)
Citation (search report)
- [AD] GB 824056 A 19591125 - FRITZ SINGER
- [AD] US 3693395 A 19720926 - GREVEN JOHANN
- [AD] US 2126453 A 19380809 - CRILEY WILLIAM W, et al
- [AD] US 2234728 A 19410311 - GAINES FREDERICK W
- [AD] GB 2018658 A 19791024 - MANNESMANN AG
- [A] DE 444479 C 19270518 - WILHELM HELSPER
- [A] EP 0001073 A1 19790321 - FORST MASCHF OSWALD [DE]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0255740 A1 19880210; EP 0255740 B1 19910327; AT E61950 T1 19910415; DE 3768875 D1 19910502; IT 1201802 B 19890202; IT 8683391 A0 19860806
DOCDB simple family (application)
EP 87201277 A 19870704; AT 87201277 T 19870704; DE 3768875 T 19870704; IT 8339186 A 19860806