Apparatus for making bags from soft tapes of synthetic resins

Claim 3

The apparatus of claim 1 wherein said frill-imparting means is composed of two rotatable, horizontally opposed shafts arranged such that the tape is adapted to pass therebetween and each having a plurality of wheels fixed at predetermined intervals, the wheels being positioned such that a wheel fixed to one shaft adapted to engage one side of the tape is interposed between two wheels fixed to the other shaft adapted to engage the opposite side of the tape, whereby frills are imparted to the tape in its longitudinal direction.

Claim 4

The apparatus of claim 1 wherein said cutting device comprises a stationary frame including a pair of spaced-apart guide rails disposed on one side of the tape, a rack disposed on the same side of the tape and extending substantially at right angles to the vertical and parallel to said tape, and a cutting stand disposed with respect to said guide rails and rack on the opposite side of the tape; a motor whose extended portion has a rotatable shaft slideably supported by said guide rails in a direction substantially vertical; a pinion fixed to said extended portion to be in mesh with said rack; a rotatable blade fixed to said extended portion; a groove being formed in said cutting stand to extend in a direction at right angles to the vertical and parallel to said tape to correspond to the position of said rotatable blade; whereby said rotatable blade is rotated and displaced along said groove when said shaft is rotated by said motor so that the tape is cut by the cutting edge of said rotatable blade.