| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a bag opening holder that facilitates filling of a wide and thin rectangular packaged object such as a book.SOLUTION: The bag opening holder comprises an opening mechanism 79 that holds a bag mouth of a packaging bag 20 in an open state in order to fill a packaged object while following rotation of a rotor provided with a plurality of clamps for holding the packaging bag, where one pair is arranged as one set. In the opening mechanism 79 a pair of turning shafts 73 and 74 turning in opposite directions from each other is provided at an arm 62 provided on a normal and reverse rotation shaft 60 concentric with a center shaft 61 of the rotor. In the turning shafts 73 and 74 are provided opening members 71 and 72 that expand the bag mouth in a radial direction of the rotor. The opening members 71 and 72 comprise a pair of opening/closing plates that is turned in a direction of crossing the radial direction of the rotor 66 and expand the bag mouth in a direction of crossing a direction of opening the opening members 71 and 72.</p> |
