A housing has a wall constituted by a rigid metal plate formed with an array of throughgoing perforations and by a flexible synthetic-resin sheet overlying the inner face of the rigid wall and having a multiplicity of projections each extending through a respective perforation and beyond the outer surface of the rigid plate. Furthermore the flexible sheet may be inwardly deflectable to actuate a switch in the housing.
申请公布号
DE2739137(C2)
申请公布日期
1983.07.14
申请号
DE19772739137
申请日期
1977.08.31
申请人
BRAUN AG, 6000 FRANKFURT, DE
发明人
ULLMANN, ROLAND, 6055 HAUSEN, DE;ZIMMERMANN, KLAUS, 6201 BRAMTHAL, DE
