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US 5,476,053 AGranted
Flat sheet hemming method and folding and separating apparatus
AssigneeSew Simple Systems, Inc.
InventorCharles E. Brocklehurst
Life of this patent
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AssigneeSew Simple Systems, Inc.
InventorCharles E. Brocklehurst
Estimating the term…
The edge portion (18) of sheet material moves about a turning plate (65), moving through first and second right angle turns (44) and (45). A turning belt (50) moves in unison with the edge portion (18) through the first two turns, and then moves through third and fourth right angle turns to advance along its return flight. An open ended slot (73) is formed between the first and second right angle turns to allow the turning belt and edge portion to move from beneath the turning plate to above the turning plate, so as to permit the edge portion of the sheet material to always turn in a downward direction as it is being turned over and placed in a folded position. Folding plate (77) guides the sheet material to help form the fold (20) in the sheet material, and separator plate (76) separates the edge portion (18) of the sheet material from the turning belt (50).
A process of automatically and progressively folding a length of flexible sheet material having at least one edge portion and an adjacent body portion by folding the edge portion of the length of flexible sheet material into folded relationship on the adjacent body portion of the sheet material as the sheet material advances generally parallel to the length of the edge portion toward a work station, comprising the steps of:
A process of automatically and progressively folding a length of flexible sheet material having at least one edge portion and an adjacent body portion by folding the edge portion of the segment into folded relationship with the adjacent body portion of the segment, comprising the steps of:
A separator and alignment apparatus for a sheet hemming system for separating a conveyor belt from an open hem of moving sheet material, said apparatus comprising:
A turning plate for progressively turning an edge portion onto an adjacent body portion of a length of flexible sheet material moving generally parallel to the length of the edge portion through a processing path about the turning plate, comprising:
An edge folding assembly for automatically and progressively turning an edge portion of a length of flexible sheet material into folded relationship on the adjacent body portion of the sheet material as the sheet material advances generally parallel to the length of the edge portion toward a work station, comprising:
A separator and alignment apparatus for a sheet hemming system for separating a conveyor belt from an open hem of moving sheet material, said apparatus comprising:
Dependencies are inferred from the claim text.