Auto-folder type cellular phone, has couplers to adjust positions for folder to open and close by varying direction of divided voltage that varies based on sliding switch at operation signal of subscriber by motor driving unit

摘要

The phone has couplers to adjust respective positions for a folder to open and close. A fixed resistance (R1) with a preset value receives a battery voltage. Voltage-dividing resistances divide the voltage when they are connected to the fixed resistance. A motor (M) driving unit opens and closes the folder by varying a direction of divided voltage that varies based on a sliding switch at an operation signal of a subscriber. An elastic unit provides force to couple the couplers. A sliding switch connects the voltage-dividing resistances respectively to the fixed resistance in series by making a sliding motion. A folder is disposed between a pair of hinge shafts of a main body.