PROBLEM TO BE SOLVED: To provide a vibration-sensitive article fall prevention device that can automatically lift a horizontal member held at a lower position to an upper position in both cases of lateral vibration and longitudinal vibration and can lift the horizontal member to the upper position and hold it at the position even by manually.;SOLUTION: A vibration-sensitive article fall prevention device comprises: a horizontal member 9 that can move upward and downward between prescribed upper and lower positions of a shelf stage 5; a pair of support arms 8 that is connected to both ends of the horizontal member 9 and rotates in a vertical direction; an extension coil spring 30 that energizes the horizontal member 9 upward; a lifting member 36 that uses the extension to lift the horizontal member 9 to an upper position and links the support arms 8 with the extension coil spring 30; an engaging lever 38 that, when the horizontal member 9 is located at the lower position, interrupts upward movement of the lifting member 36, but when the horizontal member 9 is lifted, lifts the horizontal member 9 to the upper position because the engagement with the lifting member 36 is released; and a weight 20 that, when sensing vibration, actuates the engaging lever 38 in a direction for releasing the engagement with the lifting member 36.;COPYRIGHT: (C)2014,JPO&INPIT
展开▼
