Apparatus for continuous pushing out of sheet product from blank

Claim 1

Apparatus for continuous pushing out of at least one sheet product from a blank comprising at least one sheet formed in advance with cut lines corresponding to the contour of the sheet product, said apparatus comprising: a pair of endless moving means (1, 2) having respective spans thereof disposed in opposed relationship and driven in the same direction from one end thereof to the other end, said spans being arranged in mutually converging relationship with respect to said direction; means (14) for supplying the blank (A) between said spans at the one ends thereof so as to be conveyed along the spans; blank holding members (7) secured to one of said endless means (1) in spaced apart relationship with respect to the moving direction thereof and disposed at positions enabling the holding members (7) to abut on that part of the blank (A) outside of said contour (C) of the sheet product at one side of the blank while the blank is being conveyed between said spans; sheet product pushing out members (8) secured to the other endless means (2) in spaced apart relationship with respect to the moving direction thereof and disposed at positions enabling the pushing out members (8) to abut on that part of the blank inside of said contour (C) of the sheet product (B) at the other side of the blank (A) while the blank is being conveyed between said spans; blank backup means (10, 13) yieldably supported on the other endless means (2) at positions opposing said holding members (7), respectively, and cooperating with the holding members to grip the blank (A) therebetween while it is being conveyed between said spans; and sheet product backup means (9, 12) yieldably supported on the one endless means (1) at positions opposing at least some of said pushing out members (8), respectively, and cooperating with the pushing out members to grip the part of the blank inside of said contour (C) while the blank is being conveyed between said spans, the converging relationship between said spans being such that the loci (X, Y) of the blank holding members (7) and the sheet product pushing out members (8) are spaced apart in the region of said one end of the spans and partially overlap each other in the region of said other end, whereby the part (B) of the blank inside of said contour (C) is gradually pushed out from the remaining part (A 1 ) of the blank transversely to said direction with resultant yielding of said blank backup means (10, 13) and said sheet product backup means (9, 12) while the blank is conveyed between the spans.