Patent ID: 11912029
Assignee: BROTHER KOGYO KABUSHIKI KAISHA
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 0:
1. A liquid discharging head having a plurality of unit heads,
each of the plurality of unit heads comprising:
a first piezoelectric layer,
a plurality of driving electrodes arranged on a surface of the first piezoelectric layer and to each of which either one of a first potential and a second potential different from the first potential is to be selectively applied, and
a common electrode arranged on an opposite side to the plurality of driving electrodes with respect to the first piezoelectric layer, in the first direction being a thickness direction of the first piezoelectric layer; wherein

the common electrode includes:
a potential receiving part configured to receive either one of the first potential and the second potential; and
an extending part extending, from a connection part between the potential receiving part and the extending part to an end of the extending part, in an extending direction orthogonal to the first direction, so as to overlap with the plurality of driving electrodes in the first direction, the extending direction being a direction from the connection part toward the end of the extending part;

the plurality of unit heads is arranged so that the common electrodes of the plurality of unit heads are adjacent to each other in a second direction orthogonal to the first direction; and
the extending directions of two of the common electrodes adjacent to each other in the second direction are opposite to each other such that the connection part is positioned on one side in the second direction of the end of the extending part in first one of the two of the common electrodes, and the end of the extending part is positioned on the one side in the second direction of the connection part in second one of the two of the common electrodes.