Pocketed spring core
AssigneeAGRO Federkernproduktions GmbH
InventorWolfgang Grothaus
Life of this patent
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Abstract
A pocketed spring core includes a plurality of springs which are arranged sequentially in rows to form parallel adjoining spring strands, wherein each of the springs is supported in a pocket made of flexible material. A first cover sheet is placed over and connected to the spring strands, and a second cover sheet is placed under the spring strands and connected thereto. At least one of the first and second cover sheets has predetermined regions which are opened in a direction transversely to a longitudinal extension of the spring strands by a plurality of slots to thereby form strips.
Claims26
A pocketed spring core, comprising a plurality of springs arranged sequentially in rows to form parallel adjoining spring strands, wherein each of the springs is supported in a pocket made of flexible material;
- a first cover sheet placed over and connected to the spring strands;
- and a second cover sheet placed under and connected to the spring strands, wherein at least one of the first and second cover sheets has predetermined regions which are opened in a direction transversely to a longitudinal extension of the spring strands by a plurality of slots to thereby form strips, wherein the slots are spaced at a distance which corresponds at least to a distance between two springs of a spring strand.
A pocketed spring core, comprising a plurality of springs arranged sequentially in rows to form parallel adjoining spring strands, wherein each of the springs is supported in a pocket made of flexible material;
- a first cover sheet placed over and connected to the spring strands;
- and a second cover sheet placed under and connected to the spring strands, wherein at least one of the first and second cover sheets has predetermined regions which are opened in a direction transversely to a longitudinal extension of the spring strands by a plurality of slots to thereby form strips, wherein the slots in each of the first and second cover sheets extend partially across the cover sheets.
A pocketed spring core, comprising a plurality of springs arranged sequentially in rows to form parallel adjoining spring strands, wherein each of the springs is supported in a pocket made of flexible material;
- a first cover sheet placed over and connected to the spring strands;
- and a second cover sheet placed under and connected to the spring strands, wherein at least one of the first and second cover sheets has predetermined regions which are opened in a direction transversely to a longitudinal extension of the spring strands by a plurality of slots to thereby form strips, wherein the slots in each of the first and second cover sheets are so dimensioned as to leave an edge at the margin.
A pocketed spring core, comprising a plurality of springs arranged sequentially in rows to form parallel adjoining spring strands, wherein each of the springs is supported in a pocket made of flexible material;
- a first cover sheet placed over and connected to the spring strands;
- and a second cover sheet placed under and connected to the spring strands, wherein at least one of the first and second cover sheets has predetermined regions which are opened in a direction transversely to a longitudinal extension of the spring strands by a plurality of slots to thereby form strips, wherein the slots in each of the first and second cover sheets are so dimensioned as to leave a center web.
A pocketed spring core, comprising a plurality of springs arranged sequentially in rows to form parallel adjoining spring strands, wherein each of the springs is supported in a pocket made of flexible material;
- a first cover sheet placed over and connected to the spring strands;
- and a second cover sheet placed under and connected to the spring strands, wherein at least one of the first and second cover sheets has predetermined regions which are opened in a direction transversely to a longitudinal extension of the spring strands by a plurality of slots to thereby form strips, wherein the slots in each of the first and second cover sheets are so dimensioned as to leave an edge at the margin and a center web.
Dependencies are inferred from the claim text.