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发明授权
CN101254872B 带翼片的包装膜装置 失效 - 权利终止

带翼片的包装膜装置
摘要：
本发明提供一种能消除切断刀刃按压被从容器拉出的包装膜而将包装膜损伤的“刀刃擦碰”、并且对于左手顺手的人及右手顺手的人双方都没有使用上的不便的改良了的包装膜装置。在包装膜装置中，翼片(50)配置成，包含对置的两个箱端壁(123)之间的距离的2等分线。在设上壁(21)的宽度为A、上壁(21)从水平方向旋转的旋转角为R、从盖前壁上边(242)到刃尖的顶部(221)的尺寸为S、开口(15)的宽度为B、翼片(50)的最大尺寸为H、翼片(50)从垂直方向旋转的旋转角为X时，若旋转角R、X分别取0～45°的某个角度，则尺寸A、S、B、H被选择为，满足S×cosR＝A×sinR+H×cosX、以及H×sinX≤(A×cosR+S×sinR)-B。
摘要（英）：

The invention provides an improved package film device capable of eliminating'edge friction' which is caused by the press of a cutting edge on a package film pulled from a container and damages the package film, and both left-handers and right-handers have no inconvenience in use. In the package film device, a wing (50) is configured to be a bisector including the distance between two opposed boxend walls (123). Given that the width of an upper wall (21) is A, the rotation angle of the upper wall in horizontal direction is R, the size from the upper edge (242) of the front wall of a cover tothe top (221) of an edge is S, the width of an opening (15) is B, the maximum size of the wing (50) is H, the rotation angle of the wing (50) in vertical direction is X, if the rotation angles R and X are respectively an angle of 0 to 45 degrees, the sizes A, S, B and H are selected, satisfying the expressions: S*cosR=A*sinR+H*cosX and H*sinX<=(A*cosR*sinR)-B.

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