| 摘要 |
PURPOSE:To obtain a vessel lidded with a film given sufficient tension by providing a device for imparting a tension to a strip of film drawn from a roll of film. CONSTITUTION:To the upper side of a flange 2, 3 formed from the upper edge of a vessel 1 outward a film lid 4 is attached in such a manner as to close the opening bounded by the flange 2, 3; at this time, a roll of film 75 is supported by a film-roll support 71 in a rotatable manner, and a conveyance device D conveys the vessel 1 together with the film 76, which is in the form of strip, with the film 76 on the flange 2, 3 of the vessel 1. A presser 80 presses the vessel 1 and the strip of film 76 in a manner of positioning. A tension- imparting device 73, 74 imparts a tension to the strip of film 76 drawn from a roll of film 75. Furthermore, a brake 72 is provided to the film-roll support 71 so that the rotation of the roll of film 75 can be stopped. |
