Patent ID: 7388575
Filing Date: 2008-06-17
Classification: G06F,H01H

Abstract:
1. A mechanical wheel instruction apparatus, comprising: a wheel having a rotation side, convex sections located on the perimeter of the rotation side in an equally spaced manner, every two neighboring convex sections being interposed by a concave section; and a base board for generating instruction signals corresponding to rotation of the wheel being electrically connected to a contact leg assembly which includes a forward contact leg and a reverse contact leg located on the convex sections and a common contact leg located on the concave section between the forward contact leg and the reverse contact leg; wherein the common contact leg is pushed by a upper convex section to contact the forward contact leg to output a forward rotation instruction when the wheel is subject to a force and rotates clockwise, and the common contact leg is pushed by a lower convex section to contact the reverse contact leg to output a reverse rotation instruction when the wheel is subject to a force and rotates counterclockwise.