Method of manufacturing a push button keyboard.

摘要

A method of manufacturing one or more push buttons and associated case. The method is executed in two work operations with injection moulding moulds. Button (2) and case (1) are moulded jn the first operation so that the button (2) is cohesive with the case via two joining members (3a, 3b) formed one on either side of the button. In the second operation there is moulded a portion (8) under the button (2) for contact, e g with a connection mat or so-called «keypad», as well as locking lugs (6b) or stop means (61 b) preventing upward mouvement of the button after depression. Pressure is brought to bear on the upper surface of the button to separate it from the case.