Elevator control switch and position indicator assembly

An elevator control switch assembly, comprising:

• a lens guide having an opening at one end;
• means for mounting said lens guide in an operating panel with its open end facing outwardly;
• switch means mounted in said lens guide, comprising a piezoelectric element for generating an output signal on application of force to said piezoelectric element;
• control means connected to said piezoelectric element for generating an elevator control pulse in response to an output signal from said piezoelectric element;
• push button means mounted in said lens guide for deflecting said piezoelectric element to generate an output signal on application of force to said push button means by an operator, the push button means being movable a predetermined distance between a first inoperative position and a second operative position in which it deflects the piezoelectric element;
• and
• restraining means for limiting movement of said push button means to a predetermined distance sufficient to produce an output signal from said piezoelectric element.