Cutting assembly
AssigneeScott Paper Company
InventorsKenard E. Urion, Douglas R. Cleminshaw
Life of this patent
Estimating the term…
Abstract
A cutting assembly of the type usable for severing a sheet into discrete elements includes an elongate track member having an elongate slot therein. A cutter slide is moveable in the slot and includes downwardly extending projections for both immobilizing and tensioning the sheet locally prior to, and during the severing operation. A method of forming the track, other articles having a segmented upper wall, by injection molding side sections and upper wall segments at an angle relative to the position they assume in the completed article, and thereafter rotating the side sections and upper wall segments about flexible, injection molded hinge sections to complete the formation of the article.
Claims16
A cutting assembly of the type usable for severing a sheet into discrete elements, said assembly including:
- an elongate track member having an elongate slot therein;
- and
- a cutter slide movable in said slot, said cutter slide including first means for forcing sections of the sheet against the track on opposite sides of the slot to immobilize said sheet, and second means for engaging the sheet on opposite sides of the slot to tension immobilized sections of said sheet prior to severing.
A cutting assembly of the type usable for severing a sheet into discrete elements, said assembly including:
- an elongate track member having upper wall segments terminating in spaced-apart inner surfaces that define an elongate slot between them;
- a cutter slide movable in said slot and including a cutting element having a cutting edge for engaging and severing the sheet when said sheet is positioned over the slot in a taut condition, the improvement wherein the cutter slide includes:
- a top wall overlying the cutting element;
- first means directed downwardly from the top wall for forcing sections of the sheet against the track on opposite sides of the slot as the cutter slide is moved to locally immobilize said sheet;
- second means directed downwardly from the top wall for engaging immobilized sections of the sheet on opposite sides of the slot as the cutter slide is moved to tension said sections into a taut condition over the slot;
- said first and second downwardly directed means being aligned with the cutting edge for maintaining the sections of the sheet immobilized and tensioned prior to and during the severing of said sections.
A method of forming a one-piece member having a compartment defined in part by a bottom wall, side sections joined to said bottom wall and a split upper wall formed in two segments, each of said segments being joined to one of said side sections;
- said method including the steps of
- (a) molding the side sections at an angle to the bottom wall and joined to said bottom wall through thin, flexible hinge sections;
- (b) molding both upper wall segments as continuous extensions of respective side sections and at angles relative to their required orientation in the completed member, one upper wall segment and its associated side section being joined to the bottom wall through one flexible hinge section and the other upper wall segment and its respective side section being joined to the bottom wall through the other flexible hinge section;
- and
- (c) rotating the side sections and upper wall segments about the flexible hinge sections to move the upper wall segments into overlying relationship with at least a portion of the bottom wall.
Dependencies are inferred from the claim text.