Mini-keyboard with input pin for electronic apparatus, such as mobile telephones, has tip of input pin integrated in compression mechanism of ball pen

摘要

Cap- or prism-shaped depressions with deep located contacts (2) are fitted on a platelet, or finger keys (4), which are actuated by a pin, whose tip is spherical, or conical. The tip is so dimensioned that it is guided to the contact position via the depression. The tip of the input pin is integrated in the compression mechanism of a ball pen (5). The clip of the ball pen may have a finger depression for better handling or precision with respect to the mini-keyboard.