Push button of relatively large width

摘要

Films having printed contacts are provided for a push button of relatively large width, especially as a space bar for alphanumeric keyboards. A film is equipped with a dome-shaped projection and touching contact is made with the film located underneath when this film dome is pressed down by means of the key. Easy and error-free operation is ensured in that a contact (which is constructed as a film dome) and at least one auxiliary contact (which is constructed to be flat) are arranged underneath the push button.