EP 1048086 A1 20001102 - PIEZOELECTRIC DRIVE DEVICE
Title (en)
PIEZOELECTRIC DRIVE DEVICE
Title (de)
PIEZOELEKTRISCHE ANTRIEBSVORRICHTUNG
Title (fr)
DISPOSITIF D'ENTRAINEMENT PIEZOELECTRIQUE
Publication
Application
Priority
- DE 19845134 A 19981001
- EP 9907484 W 19990930
Abstract (en)
[origin: DE19845134A1] The invention relates to a drive device having at least one substantially parallelepiped piezoelectric element and means for generating oscillation of the piezoelectric element in a plane of oscillation (x/y planes), wherein a tappet for exerting an impact force in an impact direction (x direction) is provided on at least one outer surface of the piezoelectric element. In order to improve effectiveness, a single central suspension element is provided inside the piezoelement in the center of the piezoelement that exerts a prestressing force on the piezoelectric element in the direction of impact.
IPC 1-7
IPC 8 full level
B26B 19/28 (2006.01); G11B 21/02 (2006.01); H01L 41/09 (2006.01); H02N 2/00 (2006.01)
CPC (source: EP)
H02N 2/004 (2013.01); H02N 2/0055 (2013.01); H02N 2/026 (2013.01); H10N 30/2023 (2023.02)
Citation (search report)
See references of WO 0021145A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19845134 A1 20000406; AU 1033500 A 20000426; CN 1289458 A 20010328; EP 1048086 A1 20001102; JP 2002528021 A 20020827; WO 0021145 A1 20000413
DOCDB simple family (application)
DE 19845134 A 19981001; AU 1033500 A 19990930; CN 99802571 A 19990930; EP 9907484 W 19990930; EP 99953750 A 19990930; JP 2000575175 A 19990930