EP 0298056 A3 19900829 - BENDING PRESS FOR SHEETS
Title (en)
BENDING PRESS FOR SHEETS
Publication
Application
Priority
IT 8557287 A 19870703
Abstract (en)
[origin: JPS6448622A] PURPOSE: To simplify a device structure by providing a cutter block between upper and lower counterblades and supporting and driving them with one or more fluid-actuated cylinders. CONSTITUTION: Upper and lower counterblades 5, 1 are provided in a press and a cutter block 6 is positioned with respect to the two counterblades 5, 1. The cutter block 6 is provided with a lower blade 8 for upwardly folding and an upper blade 7 for downwardly folding. Furthermore, the block 6 is supported with one or more fluid-actuated cylinders 9 having a shaft 10 and folding is performed with the shaft 10 through an eccentric structure 12 by inserting and supporting a plate between the upper and lower counterblades 5, 1. The device structure is simplified because it is formed of a small number of parts hereby.
IPC 1-7
IPC 8 full level
B21D 5/04 (2006.01)
CPC (source: EP US)
B21D 5/045 (2013.01 - EP US)
Citation (search report)
- [Y] CH 216009 A 19410731 - RUF WALTER [CH]
- [Y] EP 0022122 A1 19810107 - VOEST ALPINE AG [AT]
- [Y] US 4671094 A 19870609 - BREAK DOUGLAS G [US]
- [A] DE 3530513 A1 19860612 - VOEST ALPINE AG [AT]
- [A] EP 0023894 A1 19810211 - SALVAGNINI TRANSFERICA SPA [IT]
- [A] FR 1160321 A 19580711
- [A] GB 2004216 A 19790328 - SALVAGNINI TRANSFERICA SPA
- [A] EP 0077314 A1 19830420 - VOEST ALPINE AG [AT]
- [A] GB 951895 A 19640311 - OLIVER MACHINERY CO
- [A] US 2552616 A 19510515 - BATH CYRIL J
- [A] PATENT ABSTRACTS OF JAPAN, vol. 10, no. 299 (M-524)[2355], 11 octobre 1986; & JP-A-61 111 736 (MARU KIKAI KOGYO K.K.) 29-05-1986
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0298056 A2 19890104; EP 0298056 A3 19900829; EP 0298056 B1 19921111; AT E82167 T1 19921115; DE 3875819 D1 19921217; DE 3875819 T2 19930513; ES 2036715 T3 19930601; IT 1222347 B 19900905; IT 8785572 A0 19870703; JP H084838 B2 19960124; JP S6448622 A 19890223; US 4836004 A 19890606
DOCDB simple family (application)
EP 88830283 A 19880701; AT 88830283 T 19880701; DE 3875819 T 19880701; ES 88830283 T 19880701; IT 8557287 A 19870703; JP 16578888 A 19880702; US 21441388 A 19880701