Touch screen device
AssigneeAlpine Electronics, Inc.
InventorKazunari Kato
Life of this patent
Estimating the term…
Abstract
A touch screen device includes a motor attached to a movable chassis to support the touch panel, a rotor fixed to the motor shaft, a driven rotor meshing with the rotor, a cam mechanism that converts the rotational driving force of the motor into a driving force in the thrust direction and transmits the driving force to the movable chassis, and a leaf spring elastically urging the touch panel moved by the cam mechanism toward the original position. The cam mechanism includes two wave cam portions that each have a cam surface having a series of wave-like recesses and protrusions arranged along a circumference and, and cam engaging portions that are provided at the axial ends of the rotors and that are in sliding contact with the cam surfaces.
Claims17
A touch screen device comprising:
- a display panel;
- a touch panel disposed in front of the display panel;
- a movable chassis configured to retain the touch panel;
- a stationary chassis configured to support the moveable chassis;
- a vibration imparting mechanism configured to vibrate the movable chassis to impart vibration to the touch panel;
- the vibration imparting mechanism further including:
- a motor having a motor shaft, the motor attached to the movable chassis or the stationary chassis;
- an axis of the motor shaft extending in a thickness direction of the touch panel;
- a cam mechanism configured to convert a rotational driving force of the motor into a driving force in the thickness direction of the touch panel, wherein the driving force is transmitted to the movable chassis;
- and
- an elastically urging portion configured to permit the movable chassis to be reciprocally moved by the cam mechanism, and
- the cam mechanism further including:
- a wave cam portion having a cam surface;
- the cam surface having a plurality of wave-like recesses and protrusions arranged along a circumference of the wave cam portion, the wave-like recesses and protrusions arranged radially relative to the axis of the motor;
- and
- a cam engaging portion configured to slidingly contact the cam surface and is rotatable relative to the wave cam portion, wherein one of the wave cam portion and the cam engaging portion is coupled to the motor shaft, and the other is coupled to the movable chassis or the stationary chassis.
A touch screen device comprising:
- a display panel;
- a touch panel disposed in front of the display panel;
- a movable chassis configured to retain the touch panel;
- a stationary chassis configured to support the moveable chassis;
- a vibration imparting mechanism configured to vibrate the movable chassis to impart vibration to the touch panel;
- the vibration imparting mechanism further including:
- a motor having a motor shaft, the motor attached to the movable chassis or the stationary chassis;
- an axis of the motor shaft extending in a thickness direction of the touch panel;
- a cam mechanism configured to convert a rotational driving force of the motor into a driving force in the thickness direction of the touch panel, wherein the driving force is transmitted to the movable chassis;
- and
- an elastically urging portion configured to permit the movable chassis to be reciprocally moved by the cam mechanism.
Dependencies are inferred from the claim text.