Abstract: A container lid (2) can be removed from a mouth-neck section (106) of a container without the need for a tool. Following the breakage of a breakable thin-walled line (70) in a transition region (52), the breakage of a breakable thin-walled connection wall (68) in a side wall separation region (54) can be started sufficiently smoothly in the container lid (2). For this purpose, the breakable thin-walled line (70) formed in a side wall (10) in the transition region (52) is brought into a form in which at least a part thereof extends obliquely downwardly in a counterclockwise direction.

Abstract: A container lid (2) can be removed from a mouth-neck section (106) of a container without the need for a tool. Following the breakage of a breakable thin-walled line (70) in a transition region (52), the breakage of a breakable thin-walled connection wall (68) in a side wall separation region (54) can be started sufficiently smoothly in the container lid (2). For this purpose, the breakable thin-walled line (70) formed in a side wall (10) in the transition region (52) is brought into a form in which at least a part thereof extends obliquely downwardly in a counterclockwise direction.

Abstract: A bottle turn prevention mechanism for neck grippers which hold a neck of a bottle 1 from both sides by means of neck grippers 2, 3, wherein contacting sections which contact the neck are continuous with non-contacting sections which do not contact the neck, boundary sections where the non-contacting sections change into the contacting sections in the direction of the rotational force which the bottle receives during capping are formed in acute-angled shapes with respect to the outer circumferential surface of the neck, and this acute-angled shape is formed in such a manner that the angle ? formed between the line L1 linking the front end section 2c, 3c of the boundary section and the center line of the neck, and the tangent L2 to the front end section of the non-contact surface side, lies in the range 0°<??45°.