To improve work efficiency without complicating a control system.

This device is provided with: a moving body 14 arranged so as to be guided by a pair of rods 12 and reciprocatable in a first direction X; a conveyer member 16 fixed to the moving body 14 for conveying a conveyed object; a first shaft 18 formed in the moving body 14; a second shaft 24 formed apart from the moving line M of the moving body 14; a rocking arm 30 with one part 31 journalled to the first shaft 18 and the other part 32 linked with the second shaft 24 slidable in the lengthwise direction and rotatable; a third shaft 40 installed between the moving line M and the second shaft 24 and formed rotatably; a driving motor 42 for rotatively driving the third shaft 40; and a lever member 50 with one end part 51 fixed to the third shaft 40 and the other end part 52 slidably and rotatably linked to the rocking arm 30.