Patent ID: 9004471
Filing Date: 2015-04-14
Classification: B62D,B66F

Abstract:
1. A workpiece elevating support device comprising: a pair of left and right center-folding double link mechanisms arranged in parallel on a base; a pair of left and right workpiece supports supporting both lateral side portions of a workpiece and being long in a front-rear direction; and; a lock means, wherein the center-folding double link mechanisms are each composed of an intermediate link member, a lower parallel link interposed between the intermediate link member and the base, an upper link member supporting a longitudinal intermediate position of one of the workpiece supports, and an upper parallel link interposed between the intermediate link member and the upper link member, and the link mechanisms can rise and fall between a folded fallen-down posture of being folded and fallen down on the base and an expanding-rising posture of vertically raising the workpiece supports to a predetermined height, and the lock means holds each of the center-folding double link mechanisms in the expanding-rising posture, and a lifter is arranged outside the base, and the lifter has left and right pairs of front and rear forks supporting the pair of left and right workpiece supports at both front and rear sides of each center-folding double link mechanism, and by vertical elevation of the forks, the workpiece supports are configured to vertically and parallelly elevate between a lowest position wherein each center-folding double link mechanism is in the folded fallen-down posture and a highest position wherein each center-folding double link mechanism is in the expanding-rising posture and is held by the lock means, and each center-folding double link mechanism in the expanding-rising posture held by the lock means is configured to support the workpiece support without support by the forks, at the highest position.