Patent ID: 8330719
Filing Date: 2012-12-11
Classification: G06F

Abstract:
1. A mouse, comprising: a bottom casing, the bottom casing having a retainer plate at a front portion thereof and a backing plate in rear of the retainer plate, the retainer plate defining a location hole thereon, the backing plate defining a receiving recess thereon; a printed circuit board with a controller fixed thereon mounted on the bottom casing, the printed circuit board defining an opening in front of the controller penetrating a front side thereof and a slit positioned between the controller and the opening, the backing plate passing through the slit to lie in front of the controller, the retainer plate located in front of the opening; a roller unit assembled to the bottom casing, the roller unit including a roller bearing, a roller pivotally assembled to the roller bearing, and an encoder fixed to the roller bearing and associated with the roller, the roller bearing having a location post extended forward from a front side thereof to be inserted into the location hole of the retainer plate, and a contact post extended rearward from a rear side thereof to be received in the receiving recess of the backing plate, so as to movably activate the controller; and a top casing coupled with the bottom casing, the top casing defining a through hole thereon for allowing the roller to partially project out therefrom; wherein the roller is capable of being adjusted to a front position of the through hole to make the contact post apart from the controller or adjusted to a rear position of the through hole to make the contact post rearward touch and activate the controller; wherein the roller bearing has a substantially rectangular frame, the location post and the contact post respectively extend from a front side and a rear side of the frame, a pair of support plates extends upwardly from two opposite lateral sides of the frame and each defines a pivot hole thereon, the roller has an axle pivotally engage with the pivot holes of the support plates.