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AssigneeRanpak Corp.
InventorsBruno H. Baldacci, John E. Silvis
Estimating the term…
A gear-like stitching assembly adapted for use in a converter mechanism of the type providing for the production of pad-like cushioning dunnage product from sheet-like stock material which is conventionally disposed in multi-ply, roll form for use with the converter mechanism. The stock material is pulled from the stock roll by the converter and the lateral edges of the stock material are rolled inwardly prior to being formed into the pad-like product. The stitching assembly comprises a pair of rotatable gear-like members adapted to be disposed in coacting, meshed condition, and to stitch confronting and generally abutting rolled edge portions of the sheet-like stock material together by coining, as the latter rolled edge portions pass between the members. The teeth of at least one of the members have projections extending outwardly thereform, for perforating the stock material along the central coined section of the pad-like product, to aid the coined section in maintaining the product in its pad-like form. A novel method is also disclosed.
A stitching assembly adapted for use in a converter mechanism which produces pad-like cushioning dunnage product from sheet-like stock material disposed in stock roll form, the converter being operable to cause inward rolling of the lateral edges of said stock material into generally rolled form prior to being formed into the pad-like product, said stitching assembly comprising means for receiving generally abutting rolled edge portions of said stock material, to connect the same together along the generally central section of the produced pad-like product in a direction lengthwise thereof, and for pulling said stock material through the converter and causing its discharge as produced pad-like product therefrom, said stitching assembly comprising:
In a converter mechanism for producing pad-like cushioning dunnage product from sheet-like stock material comprising a support, means on said support for causing inward rolling of the lateral edges of the stock material into generally rolled form, and stitching means on the support adapted to receive confronting rolled edge portions of said stock material, to connect the same along the generally central section of the produced pad-like product in a direction lengthwise thereof, and to pull the stock material through the converter and to cause its discharge as said pad-like product therefrom, said stitching means comprising:
In a method for producing cushioning dunnage product in pad-like form from sheet-like stock material and wherein the product comprises lateral pillow-like portions connected by a central section extending lengthwise of the product, comprising taking at least one web of said stock material and moving it longitudinally while rolling the lateral edges of the web inwardly into generally spiral form and causing such inwardly rolled edge portions to be disposed into generally abutting condition, and then connecting the rolled edge portions together by lengthwise coining thereof along the juncture of said rolled edge portions and transversely of the pad-like product to form the centrally connecting section of the product, and including the step of perforating the stock material along the central connecting section to aid in connecting the lateral rolled edge portions together.
Dependencies are inferred from the claim text.