To eliminate any tangle in link operations by making a container go up and down in keeping approximately a horizontal attitude intact by means of pseudoparallel link mechanism, having the container turned over and discharged at a position got beyond a top dead center, and stabilizing its rotation in and around the top dead center of this pseudoparallel link mechanism.

An interval of tip parts between both upper and lower links 4 and 5 vertically rotating, with two fixed link fulcrums 2 and 3 at both vertical positions to a frame 1 is connected by a movable link 6 through two hinges 7 and 8, thereby forming a pseudoparallel link mechanism composed of the following formation that the sum total of lower link length and movable link length is made larger than that of fixed link length and upper link length between both these fixed link fulcrums 2 and 3, and in this constitution, a container 9 is held in the tip pat, and it is lifted and rotated within a turning area going beyond a vertical top dead center Y from the top of the floor.