Global Patent Index - EP 1101580 A2

EP 1101580 A2 2001-05-23 - Punching apparatus and punching method

Title (en)

Punching apparatus and punching method

Title (de)

Vorrichtung sowie Verfahren zum Stanzen

Title (fr)

Dispositif ainsi que procédé de poinçonnage

Publication

EP 1101580 A2 (EN)

Application

EP 00125144 A

Priority

JP 32712699 A

Abstract (en)

In a stamping apparatus, a subtracter 22b and an adder 23b compare an output value of an amplifier 29 which is a signal proportional to ÄTÜ expressing the torque generated at a fulcrum 101 by the reaction force ÄFÜ from the material to be stamped 6, to a pulse . duty setting value stored in a pulse . duty setting section 21b, and a signal in which the difference is added to the pulse . duty setting value, is generated, and a switch 25 inputs the signal into a comparator 24b in order to make the signal the comparison signal to the chopping wave outputted from a chopping wave generation circuit 26' in the PWM pulse generation circuit 26. <IMAGE>

IPC 1-7 (main, further and additional classification)

B26F 1/02; B26D 5/00; B26D 5/16; B26F 1/24

IPC 8 full level (invention and additional information)

B44B 5/00 (2006.01)

CPC (invention and additional information)

B44B 5/0066 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1101580 A2 20010523; EP 1101580 A3 20021211

INPADOC legal status


2004-03-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030612

2003-10-09 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2003-09-03 [AKX] PAYMENT OF DESIGNATION FEES

2002-12-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-12-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI

2002-12-11 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7B 26F 1/02 A, 7B 26F 1/24 B, 7B 26D 5/00 B, 7B 26D 5/16 B, 7B 44B 5/00 B, 7B 44B 3/00 B, 7B 26D 5/12 B

2001-05-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2001-05-23 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI