Patent ID: 7985044
Filing Date: 2011-07-26
Classification: B65G

Abstract:
1. A heavy article inversion device including: a base; a pair of inversion boards, each being capable of being revolved rotating between its horizontal state and the angle of revolution of less than 180 degrees from the horizontal state about a common rotary shaft supported in the center of the base; a pair of cam plates, each being fixed to each respective one of the pair of inversion boards and having its proximal end side rotatably mounted to the common rotary shaft and having the curved lower outer circumferential surface extending from the proximal end side toward the radial outside end; and a pair of linear drive mechanisms mounted on the side of the radial outside end of the base and so arranged on either side of the common rotary shaft therebetween as to face opposite each other, each one of the pair of linear drive mechanism including a cylinder and a rod operatively being moved out of and moved back into the corresponding cylinder, each one of the pair of linear drive mechanisms being operated to: cause the tip side of the respective rod to engage the curved lower outer circumferential surface on the radial outside end of the respective cam plate when the rod is moved back into the corresponding cylinder so that the corresponding inversion board can be placed in its horizontal state, and the heavy article inversion device further includes: a pair of inversion board restoring drive mechanisms, each having its tip side fixed to the radial outside end of the corresponding inversion board and having its proximal end side fixed to the radial outside end of the base, each one of the pair of inversion board restoring drive mechanisms being operated to cause the respective rod of the linear drive mechanism to be moved out of and moved back into the corresponding cylinder from the obliquely downward direction toward the direction of the common rotary shaft.