| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily adjust an operating range between an engaging position at which both sealing bodies hold a cylindrical film between them, and an opening position at which the sealing bodies separates from the cylindrical film, while ensuring a required period of time to hold the film between a pair of sealing bodies. <P>SOLUTION: A sealing device in a bag-making/filling machine includes: a fixing gear 34 and a rotary body 35 arranged on a supporting frame supporting both sealing bodies; a moving gear 40 arranged on the rotary body 35, and rotating twice in the opposite direction from the circumference direction when rotating once in a predetermined direction while being engaged with the fixing gear 34 around the axis of the rotary body 35; an operating body 49 supporting one of the sealing bodies at an eccentric position of the rotary body 35; and an eccentric supporting member 48 turnably supporting the operating body 49 at an eccentric position of the moving gear 40. When both sealing bodies are moved between the engaging position and the opening position while guiding the operating body 49 in a linear direction connecting the turning center of the operating body 49 and the rotating center of the rotary body 35, the operating range of the pair of sealing bodies is made adjustable by changing the separating distance from the turning center of the operating body 49 to the turn-supporting positions of the sealing bodies. <P>COPYRIGHT: (C)2012,JPO&INPIT |
