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AssigneeA Harrison (Bedding) Limited
InventorsSimon Paul Spinks, David Clare
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A method and apparatus for the production of a pocketed spring unit, the method comprising the steps of compressing and feeding a plurality of springs (42) into troughs (2A, 4A) or castellations in opposed conveyor belts (2,4), moving said springs (42) from said troughs (2A, 4A) or castellations to a position between upper and lower layers of fabric or other material (16A, 18A), step-wise advancing said material (16A, 18A) and said springs (42) in the direction of the output of the apparatus and welding together said lengths of fabric or other material (16A, 18A) at each step-wise advancement by a plurality of sequentially controlled welding anvils (10) so as to form a plurality of discrete pockets (46) each containing a spring (42). Apparatus for carrying out the method is disclosed.
A method for the production of a pocketed spring unit comprising the steps of compressing and feeding a plurality of springs into troughs or castellations in opposed conveyor belts, moving said springs from said troughs or casetellations to a position between upper and lower layers of fabric or other material step-wise advancing said material and said springs in the direction of the output of the apparatus and welding together said lengths of fabric or other material at each step-wise advancement by a plurality of sequentially controlled welding anvils so as to form a plurality of discrete pockets each containing a spring.
Apparatus for forming a pocketed spring unit comprising means for compressing and feeding springs between opposed conveyor belts, means for moving said compressed springs from between said conveyor belts in the direction of the output of the apparatus to positions between upper and lower lengths of fabric or other material, means for sequentially advancing said lengths and said springs in said direction, and welding means for sequentially welding together said lengths so as to form a plurality of discrete pockets each containing a spring.
Dependencies are inferred from the claim text.