TOUCH CONTROL APPARATUS FOR ELECTRONIC KEYBOARD INSTRUMENT

摘要

The touch control apparatus comprises a sensor with an elongated insulating sheet (22) having a set of first and second conductive pattern films (24)(25) on a surface. The insulating sheet is folded and the set of first and second conductive pattern films are formed to be spaced apart from each other. A pressure-sensitive element (23) samdwiched in a space defined by the folded sheet so as to be in contact with the conductive pattern films. The pressure-sensitive element is operated such that electrical characteristics change according to a pressure applied to generate an output. The output is extracted by the set of conductive pattern films. Th position of the pressure-sensitive element sandwiched by the sheet is regulated with respect to the sheet.