Continuous sheet pleating device for making overlapping pleats and arrangements for making areas with no pleats and method of making pleats
AssigneesGilbert Capy, Akiva Buchberg
InventorGilbert Capy
Life of this patent
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Abstract
The device includes a toothed wheel on which pleats of a sheet 10 are preformed, in some cases with the aid of a second toothed wheel 31, and a device for holding by a vacuum; then the preformed pleats are transferred to a pleat gathering wheel 13 either directly or through the medium of a pleat pressing wheel, where they are laid down then fixed to form a pleated sheet 23. The toothed wheels 5 and 31 and the pleat pressing wheel and/or the pleat gathering wheel 13 can be arranged to produce areas with no pleats at regular intervals.
Claims24
A sheet pleating device comprising:
- a first tooth wheel having a plurality of forming teeth disposed preferably on the tooth wheel and rotating at a first speed;
- conforming means cooperating with said tooth wheel to continuously conform a sheet to said forming teeth to form folds spaced at a first distance;
- and
- pleat gathering means for collecting folds and including a member moving at a speed different from said first speed to collect said folds and space them at a second distance different from said first distance to produce a continuous ribbon of pleats, wherein said pleat gathering means further includes flattening means for flattening said folds side by side in an overlapping relationship.
A method of generating a continuous ribbon of pleats comprising the steps of:
- training a continuous sheet around a toothed wheel;
- forcing said sheet between the teeth of said tooth wheel to generate folds spaced at a first distance;
- gathering said folds by reducing the spacing between said folds from said first distance;
- and
- pressing said folds to form pleats.
A device for pleating a continuous flexible sheet of flexible material, said device comprising:
- a tooth wheel having a plurality of teeth moving at a first speed;
- conforming means cooperating with said tooth wheel to fold said sheets into a first set of sheet segments and a second set of sheet segments;
- pleat gathering means positioned to receive said sheet segments from said tooth wheel, said gathering means including a member moving at a second speed slower than said first speed to gather said sheet segments with two segments of said first set being in contact with each other to form folds and being separated by sheet segments of said second set;
- and
- flattening means for flattening said folds in an overlapping fashion to form a continuous ribbon of pleats.
Dependencies are inferred from the claim text.