Patent ID: 8991951
Filing Date: 2015-03-31
Classification: B60R,F16M

Abstract:
1. A pop-up monitor including a body housing and a monitor frame, which is installed to move in a vertical direction with respect to the body housing, the pop-up monitor comprising: a driving unit comprising a motor, a rotational shaft, and a gear set configured to transfer a rotational motion of the motor to the rotational shaft; a sensor configured to directly sense whether the rotational shaft is rotating and output, in accordance with the direct sensing, a sensing signal indicating whether the rotational shaft is rotating; and a controller configured to control a rotational direction of the motor according to the sensing signal and state information indicating whether the motor rotates, wherein: the gear set is configured to transfer the rotational motion of the motor to the rotational shaft when an external force applied to the monitor is below a predetermined reference force, a compound gear is integrally coupled to the rotational shaft, the sensor is a rotary sensor having a first spur gear, the first spur gear is coupled to a second spur gear disposed on the rotational shaft, the gear set comprises a clutch gear coupled to a worm gear, which is installed on a driving shaft of the motor, the compound gear is coupled to the clutch gear, the clutch gear comprises a first helical gear, disposed in an upper portion of the clutch gear, and a third spur gear disposed in a lower portion of the clutch gear, the first helical gear is coupled to the worm gear installed on the driving shaft and configured to receive motive power from the motor, and the third spur gear is coupled to the compound gear and configured to rotate integrally with the first helical gear to transfer the motive power.