| 摘要 |
PROBLEM TO BE SOLVED: To provide a performing device capable of achieving a performance of rotating a pair of doors in front of a display by a structure configured to easily secure the durability. SOLUTION: The presentation device includes: a first rotatable ring member 30 with the pair of doors 21A and 21B on the front surface; a second rotatable ring member 34 located at the rear of the first ring member 30; a first electric motor 40, a first driving gear 41 and a first driven gear 42 for rotationally driving the first ring member 30 or retaining the first ring member in the stopped state; a second electric motor 50, a second driving gear 51 and a second driven gear 52 for rotationally driving the second ring member 34 or retaining the second ring member in the stopped state; a motor control means for controlling the first and second electric motors 40 and 50; and a transmission means 70 disposed among the first ring member 30, the second ring member 34 and the pair of doors 21A and 21B for converting the relative rotational motion into the opening motion or closing motion of the pair of doors 21A and 21B by first-sixth gears 71-76 and first and second racks 80A and 80B when the relative rotational motion is generated between the first and second ring members 30 and 34 by the motor control means. COPYRIGHT: (C)2011,JPO&INPIT
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