Abstract: An exemplary pocket spring assembly comprises a plurality of elongate fabric tubes disposed adjacent each other. Each fabric tube has a plurality of pockets, with at least some of the pockets of adjacent fabric tubes being welded together at midpoints on the adjacent pocket. Further, a spring is disposed in each of the pockets.

Abstract: A resilient structure having a fiber batt with coil springs disposed therein and respective coil spring paths. Each of the coil spring paths extending from a respective coil spring and having a profile similar to a cross-sectional profile of the respective coil spring taken in a plane parallel to a length of the coil spring. A method is also provided for heating the coil springs and inserting the coil springs into a side wall of the fiber batt to produce the coil spring paths that have a profile similar to a cross-sectional profile of the respective coil spring taken in a plane parallel to a length of the coil spring.

Abstract: A spring mattress comprising a plurality of interconnected coil springs (1) enclosed in covers (2), known as a pocket-spring mattress, is described, wherein at least two springs that are located adjacent to one another are spaced apart by an interjacent separation distance (SA), said separation distance exceeding approximately 10% of the diameter of the largest one of the spiral turns of the adjacent springs. Also described is a method of manufacturing a corresponding mattress.

Abstract: A multilayered bedding or seating product comprising a spring core made up of an upper layer and a lower layer of pocketed coil springs. Each layer comprises a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a row of interconnected pocketed coil springs. The strings of springs of the upper and lower layers may be secured to at least one scrim sheet therebetween.

Abstract: A pocketed coil spring unit and associated method of assembly combines top and bottom sheets with bonding of the sidewalls of adjacent rows of pocketed coil springs. With this combination, a posturized spring unit is produced in a commercially efficient manufacturing process. The top and bottom sheets extend perpendicularly to the rows of pocketed coil springs and the adjacent rows of pocketed coil springs are bonded on the sidewalls of the fabric pockets in the absence of the top and bottom sheets. As such, the spring unit can be customized for posturization to provide a firmer supporting foundation at the locations of the top and bottom sheets and a more individualized flexible construction in the regions of the inter-row sidewall bonding.

Abstract: A spring unit (2) for incorporation into a bed, divan bed, mattress, or other upholstery unit comprises a first spring (4) and a second spring located (6) within said first spring (4). The first spring (4) may be a pocketted spring, or the second spring may be a pocketted spring, or both of said springs may be pocketted springs, the pockets of said pocketted springs being composed of a woven material and/or a synthetic material.

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.

Abstract: A string (12) of pocketed coil springs (14) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric (16). The springs are maintained in a compressed configuration while a longitudinal seam (54) joins the free edges of the thermally welded fabric (16) together. Subsequently, the compressed springs (14) are allowed to relax into an expanded configuration after which a transverse seam (80) is formed in the fabric (16) between the adjacent springs (14) thereby encapsulating each spring (14) within a fabric pocket (86). The string (12) of pocketed coil springs (14) is advantageously formed without the need for reorienting the springs (14) after being inserted between the plies (24, 26) of the fabric (16) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring (14).

Abstract: The present invention relates to a spring mattress comprising springs enclosed in casings, a so-called pocket mattress, and a method and a device for manufacturing such a mattress. The spring mattress according to the invention comprises a plurality of interconnected coil springs (1) enclosed in casings (2), for at least one of the springs, the casing portions arranged at the spring ends being moved towards each other, through the spring, and interconnected with the aid of connecting means.

Abstract: The article disclosed, with method for its manufacture, is a pocketed-spring construction made by joining juxtaposed subassemblies or modules formed by the interconnection of two rows of pocketed springs at intervals of two springs or more according to the resistance to compression desired. Various module joinder techniques are shown and described.

Abstract: A method of assembling strings of pocketed coil springs into an innerspring assembly which may be used as the core of a mattress, cushion or similar body support foundation uses a fabric material, preferably having an adhesive component, between rows of pocketed coil springs. The adhesive material serves to bond the rows of springs to each other and to position them relative to one another to prevent expansion and/or contraction of the spring assembly.

Abstract: An innerspring assembly includes a first plurality of interconnected strings of pocketed first springs. A second plurality of strings of springs is provided and so incorporated in the innerspring assembly that at least one string of springs of the second plurality is placed between two neighboring strings of the first plurality of interconnected springs, wherein the second springs have a diameter which is smaller than a diameter of the first springs.

Abstract: A coil spring assembly is provided that includes rows of pocketed coil springs, a top securing sheet and a bottom securing sheet. The assembly may be partitioned into sections of varying firmness. The rows of coil springs are positioned between the top and bottom securing sheets. Coil spring assemblies are provided that further include top and bottom securing members that further stabilize the pocketed coil springs.

Abstract: The invention discloses a spring unit for use in a sprung unit such as a bed, divan bed, mattress, or other upholstered unit, the spring unit comprising a pocket of fabric or other suitable material and having at least two sub-pockets, each of said sub-pockets containing a resilient member. The pocket will preferably be divided across, laterally, or diagonally so as to form said at least two sub-pockets. The spring unit may be formed with two sub-pockets or three or more sub-pockets each containing a resilient member. The sub-pockets may be of equal length or of differing lengths, and the resilient members will preferably be springs which may be of equal lengths or of differing lengths and of equal or differing rates of compression. The pocket will be divided by fabric or other suitable material which is integral with the pocket or by discrete piece(s) of fabric or other suitable material secured to said pocket to form said sub-pockets.

Abstract: A spring unit (2) for incorporation into a bed, divan bed, mattress, or other upholstery unit comprises a first spring (4) and a second spring located (6) within said first spring (4). The first spring (4) may be a pocketted spring, or the second spring may be a pocketted spring, or both of said springs may be pocketted springs, the pockets of said pocketted springs being composed of a woven material and/or a synthetic material.

Abstract: The present invention relates to a spring mattress having two superposed layers of springs, which are enclosed in covers, and a method of manufacturing a mattress of this kind. The characterizing features of the invention are that the springs of the upper layer are positioned essentially straight above the corresponding springs in the lower layer, and that the covers are joined together in such a manner that the springs in the lower layer are affected at least to some extent by the spring above, in the upper layer, independently of neighboring springs.

Abstract: A coil spring assembly is provided that includes rows of pocketed coil springs, a top securing sheet and a bottom securing sheet. The assembly may be partitioned into sections of varying firmness. The rows of coil springs are positioned between the top and bottom securing sheets. Coil spring assemblies are provided that further include top and bottom securing members that further stabilize the pocketed coil springs.

Abstract: A pocketed coil spring unit and associated method of assembly combines top and bottom sheets with bonding of the sidewalls of adjacent rows of pocketed coil springs. With this combination, a posturized spring unit is produced in a commercially efficient manufacturing process. The top and bottom sheets extend perpendicularly to the rows of pocketed coil springs and the adjacent rows of pocketed coil springs are bonded on the sidewalls of the fabric pockets in the absence of the top and bottom sheets. As such, the spring unit can be customized for posturization to provide a firmer supporting foundation at the locations of the top and bottom sheets and a more individualized flexible construction in the regions of the inter-row sidewall bonding.

Abstract: A composite mattress is comprised of a rectangular intermediate base with four upper sidewalls extending vertically above the base adjacent the edges of the base forming an upper cavity, four lower sidewalls extending vertically below the base adjacent the edges of the base forming a lower cavity, a spring mattress comprised of a plurality of coil springs individually encased within material pockets positioned in the lower cavity below the base, an air mattress comprised of a plurality of adjustable air cell units formed with independent air cells positioned in the upper cavity above the base, and a cover encasing the entire composite mattress.

Abstract: An exemplary pocket spring assembly comprises a plurality of elongate fabric tubes disposed adjacent each other. Each fabric tube has a plurality of pockets, with at least some of the pockets of adjacent fabric tubes being welded together at midpoints on the adjacent pocket. Further, a spring is disposed in each of the pockets.

Abstract: A method of assembling strings of pocketed coil springs into an innerspring core which may be used as the core of a mattress, cushion or similar body support foundation uses a reinforcing material, preferably having an adhesive component, between rows of pocketed coil springs. The reinforcing, adhesive material serves to bond the rows of springs to each other and to reinforce the pockets to prevent wear between coils in frictional relation.

Abstract: A pocketed coil spring assembly for use in the manufacture of mattresses or cushions or the like comprising a plurality of strips of integrally connected closed fabric pockets each containing one helically coiled wire compression spring having its axis disposed transversely of the strip, and wherein each of the strips contains a single band of interconnected springs formed from a single length of wire into a plurality of interconnected helical coil springs. The springs of the bands may contain inserts such as foam cylinders or pocketed coil springs to impart differing degrees of firmness to different strips. Adjacent coil springs may be separated by multiple transverse lines of attachment in order to posturize the product.

Abstract: A bedding or seating product comprising a spring core made up of a plurality of parallel strings of springs joined to each other. Each of the strings of springs comprises a row of interconnected pocketed coil springs. The pocket of fabric surrounding each of these coil springs is divided into at least two subpockets by at least one line of attachment of opposite sides of the fabric to each other. Each of these subpockets contains one portion of the coil spring, thus resulting in a multilayered product.

Abstract: A method of assembling strings of pocketed coil springs into an innerspring core which may be used as the core of a mattress, cushion or similar body support foundation uses plastic netting reinforced nonwoven webs supplied between a pair of spaced apart heated rolls. Strings of pocketed coil springs are fed in seriatim into the nip between the rolls to heat the netting and activate an integral adhesive to bond the webs to the top and bottom surfaces of the pockets of each string. The core formed thus has reinforced webs on the top and bottom of the strings. The process overcomes the problems encountered when hot melt spraying is utilized to bond the pocketed coil strings together.

Abstract: A pocketed coil spring assembly for use in the manufacture of mattresses or cushions or the like comprising a plurality of strips of integrally connected closed fabric pockets each containing one helically coiled wire compression spring having its axis disposed transversely of the strip, and wherein each of the strips contains a single band of inter-connected springs formed from a single length of wire into a plurality of interconnected helical coil springs. The springs of the bands may contain inserts such as foam cylinders or pocketed coil springs to impart differing degrees of firmness to different strips. Adjacent coil springs may be separated by multiple transverse lines of attachment in order to posturize the product.