EP 1097801 A1 20010509 - Piezoelectric press drive with hydraulic transmission device

Title (en)

Piezoelectric press drive with hydraulic transmission device

Title (de)

Piezoelektrischer Pressenantrieb mit hydraulischer Übertragungsanordnung

Title (fr)

Entraînement piézoélectrique de presse avec dispositif de transmission hydraulique

Publication

EP 1097801 A1 20010509 (EN)

Application

EP 00123428 A 20001102

Priority

DE 19953244 A 19991104

Abstract (en)

The invention relates to a press, more particularly for cutting and moulding miniature components, with a reciprocating die (9). In order to provide a small and compact press, which can be economically manufactured, the drive of the die (9) is effected by at least one piezoactor (18, 19). In addition, a more particularly hydraulic transmission device (14) is arranged between the piezoactor (18, 19) and the die (9). <IMAGE>

IPC 1-7

B30B 1/00; H01L 41/04

IPC 8 full level

B30B 1/00 (2006.01); H02N 2/02 (2006.01)

CPC (source: EP)

B30B 1/00 (2013.01); B30B 1/007 (2013.01)

Citation (search report)

[XY] JP S60177897 A 19850911 - NIPPON TELEGRAPH & TELEPHONE
[Y] US 5095725 A 19920317 - WADA TATUYA [JP], et al
[A] US 5138217 A 19920811 - WADA TATUYA [JP], et al
[A] CH 671187 A5 19890815 - AUTOPHON ASCOM AG
[A] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 12 29 October 1999 (1999-10-29)
[A] PATENT ABSTRACTS OF JAPAN vol. 013, no. 094 (M - 804) 6 March 1989 (1989-03-06)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

EP 1097801 A1 20010509; DE 19953244 A1 20010517

DOCDB simple family (application)

EP 00123428 A 20001102; DE 19953244 A 19991104