| 摘要 |
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 alpha formed between the line L<SUB>1 </SUB>linking the front end section 2 c, 3 c of the boundary section and the center line of the neck, and the tangent L<SUB>2 </SUB>to the front end section of the non-contact surface side, lies in the range 0°<alpha<=45°.
|
