To surely prevent a container from damage in the carrying of the container by bringing a pressing rod for pressing a group of containers loaded on a conveying path with the upright attitude to the downstream side, into contact with a barrel portion of the container of the last row of the group of containers, and planely forming the pressing face to be contacted with the barrel portion.

When a container 7 is to be packaged with a carton 8 conveyed by a conveyor 6, the container 7 is loaded on a horizontal supporting plate 1 as a conveying path with the upright attitude, and pressed to the downstream side by a pressing rod 2. On this occasion, the pressing rod 2 comprises a main body portion 2a made of a rod body having the rectangular cross section extending in the width direction and a shaft portion 2b penetrated through the main body portion, and a plane on the rectangular cross section of the main body portion 2a is used as a pressing face 21 to be contacted with the barrel portion of the container 7. The shaft portion 2b is located higher than the center of gravity of the main body portion 2a, so that the main body portion 2a can be relatively rotated on the shaft portion 2b. Thereby the contact area of the pressing face 21 to the barrel, portion of the container 7 is increased to disperse the pressing force, and the container 7 can be prevented from damaged.