Scroll wheel device with a thin film type command switch
A scroll wheel device with a thin film type command switch mainly replaces conventional optical grating switch during rotation of a wheel for outputting a signal. The thin film type command switch is a flexible circuit board, and is provided with a circuit arrangement corresponding to a rotating trajectory of the wheel. The wheel is provided with a pressing portion which is simultaneously driven during rotation of the wheel and pressing the thin film type command switch for outputting different command signals. The thin film type command switch of the present invention can decrease the manufacturing cost and save the installation space of the scroll wheel device.
1. A scroll wheel device with a thin film type command switch comprising:
a supporting seat provided with two frame portions and a rotating space formed between the two frame portions;
a wheel deposed in the rotating space, pivoted on the two frame portions by means of axles, and provided with a pressing portion corresponding to a rotating trajectory of the wheel;
a thin film type command switch disposed and corresponding to the rotating trajectory of the wheel, and comprising a signal portion and a wiring portion extended from the signal portion, wherein the signal portion is pressed by the pressing portion for generating a command signal, and both the signal portion and the wiring portion have a circuit arrangement which is corresponding to the command signal of the wheel;
the thin film type command switch is a flexible circuit board, and the signal portion comprises an upper circuit board and a lower circuit board provided with the circuit arrangement; and
the signal portion further comprises a separating sheet disposed between the upper circuit board and the lower circuit board and having a plurality of pressing holes which are corresponding to the circuit arrangement.
2. The scroll wheel device with a thin film type command switch according to claim 1 , wherein the supporting seat is provided with a terminal for inserting the wiring portion.
3. The scroll wheel device with a thin film type command switch according to claim 1 , wherein the wheel comprises an external rotating body and an internal positioning body, and the pressing portion is disposed on an inner side of the external rotating body, the internal positioning body is provided with a positioning pin for deposing the signal portion.
4. The scroll wheel device with a thin film type command switch according to claim 1 , wherein the scroll wheel device is disposed at a computer mouse.
5. The scroll wheel device with a thin film type command switch according to claim 1 , wherein the scroll wheel device is disposed at a keyboard.
6. A thin film type command switch for providing a wheel with outputting a command signal corresponding to a rotating trajectory of the wheel, wherein:
the thin film type command switch is a flexible circuit board, and provided with a circuit arrangement corresponding to the rotating trajectory of the wheel,
the wheel is provided with a pressing portion simultaneously driven during rotation of the wheel and pressing the thin film type command switch such that the pressing portion contacts the thin film type command switch at different location of the rotating trajectory to output different command signals,
the thin film type command switch comprises a signal portion and a wiring portion extended from the signal portion, wherein the signal portion comprise an upper circuit board and a lower circuit board stacked disposed on thereof; and
the signal portion further comprises a separating sheet disposed between the upper circuit board and the lower circuit board, and having a plurality of pressing holes which are corresponding to the circuit arrangement.