MXPA99002926A - Internal mattress wall structures interlockingly engageable with mattress innerspring assemblies - Google Patents

Abstract

Internal mattress wall structures interlocking engageable with mattress innerspring assemblies (12) provide a structurally integrated resilient mattress support edge to which padding upholstery (43) is integrally attached. The wall structures include a main body section with a vertically oriented wall surface and a plurality of parallelflanges (29) which mechanically engage the innerspring assembly by compression fit between the intermediate and terminal convolutions of the perimetrical coils of the innerspring assembly. Corner structures contiguous with side and end wall structures form a contiguous smooth side wall support characteristics comparable to an innerspring assembly.

Description

INTERNAL WALL STRUCTURES OF INTERLOCKED MATTRESS OF ENCLOSURE WITH THE ASSEMBLY OF INTERNAL SPRINGS OF THE MATTRESS DESCRIPTION OF THE INVENTION The present invention is generally related to sleeping mattresses and the internal construction of sleeping mattresses and, more particularly, to sleeping mattresses having internal spring assemblies in the form of interconnected arrangement of spiral springs. Sleeping mattresses and other reflective support structures are commonly constructed with a series of internally interconnected coils or springs, as described, for example, in U.S. Patent No. 4,726,572. Spiral rows are maintained in a parallel alignment by helical wires linked at the tangential points of the adjacent spirals, as are the upper and lower terminal convolutions of the spirals which may have a greater radial extent than the intermediate turns. An edge wire is attached to the spirals around the perimeter of the range of spirals (ie, the "perimeter spirals"), by a clip attached to each spiral, or a helically linked wire coaxially wound with the edge wire to along the length and width of the top and bottom edges of the internal spring assembly, to define the total shape of the mattress, and provide rigidity to the top and bottom edges of the mattress. The connected spirals and the edge wire provide an assembly of internal springs in which the layers of quilting, bunting, marking, and upholstery materials are joined to complete the mattress. The edge wire provides an important lower and upper edge or frame in which the seams of the upholstery material must closely follow in order to give the mattress a proper finished appearance critical to consumer appeal. The edge wire is typically constructed of a wire of much heavier caliber than the spirals, it must be bent to a radius small enough to define the corners of the mattress, and it is difficult to attach to the arrangement of springs. The quilting and upholstery layers are also directly attached to the internal springs assembly by means of arched rings, which is a difficult and inaccurate assembly procedure which very often produces tapered or woolly and uneven edges which moves away from the appearance of the finished product. The edge or the perimeter areas of the mattress of this type of construction are typically subjected to great loads and load cycles resulting from the common tendency of people to sit on the edge when entering or leaving the bed from a prone position, to use the edge as a seat, s to stand on the edge. A person sitting on a relatively small arrangement of assembly spirals of internal springs applies a more concentrated load on the spirals than would a more even distribution of force over a larger number of spirals, such as when the person lies on the mattress in a prone position. Excessive loading on the springs at the edges of the mattress causes accelerated wear which results in a weakening, rounding the upper surface of the mattress. This rounding is accentuated by the pre-existing curvature of the edges of the mattress as a result of many layers of padding which converge at the edges. Many different approaches have been taken to provide extra structural support in the perimeter areas of the support surface of a mattress while maintaining the desired elasticity. Many of these approaches involve simply adding material such as padding or foam to the exterior and / or interior of the assembly of internal springs in the perimeter. For example, U.S. Patent 2,940,089 describes the use of a band or block which is attached to the side faces of the internal springs assembly of a mattress to provide a smooth surface for overlaying the mat. Several fasteners are required to secure the block to the internal spring. US Patent 3,262,135 discloses a rigid edge member (wood) which encloses an array of springs of mattress but which is not directly or integrally attached to the spirals or the assembly of the edge wire. US Pat. No. 3,618,146 discloses a mattress edge stabilizer in the form of foam strips which are inserted between the convolutions of the coils of the internal spring assembly of the mattress, and between the upper and lower edge wires. In another embodiment, a single piece of foam is horizontally sliced at one or more elevations to run on the intermediate convolutions of the lateral spirals. Similarly, US Pat. No. 5,133,116 describes the insertion of an elastic cord between the intermediate convolutions of the peripheral spirals. US Patents 3,848,283 and 4,067,076 each describe the use of pieces of foam held adjacent to the lateral sides of the mattress spiral arrangements but not fully bonded to the coils. And US Patent 5,239,715 discloses a diamond-shaped mattress edge stabilizer positioned adjacent to the inner side sides of the outer rows of spirals. These disclosures do not describe any elastic support elements for the edges of mattresses which also serve as structural elements of the mattress, which are mechanically cluttered with the internal springs assembly and which form completely and integrally walls, edges and structural corners of the interior of the mattress, which can eliminate the need for conventional steel rim wires and to which the mattress and upholstery layers of the mattress can be directly joined. Also, many of the different types of foam pieces proposed for use with internal spring assemblies are in practice very difficult to attach and attach to the internal springs assembly and the mattress material layers. In addition, conventional viscoelastic foams (eg, polyurethane) used in the prior art do not provide the structural support properties of the extruded foam wall structures of the present invention. The present invention solves these and other disadvantages of the prior art by providing a structural elastic edge for the assembly of internal springs of a mattress which intertwines with the perimetric spirals of the internal springs assembly of a mattress and which forms the corners of the mattress. upper and lower edge of the internal spring assembly. According to one aspect of the invention, an internal mattress edge structure includes a main body section having a flat lateral external wall, upper and lower surfaces generally perpendicular to the wall and extending inwardly from the outer face of the wall, the intersections of the upper and lower surfaces with the outer face of the wall defining the upper and lower edges, and parallel rows of tabs attached to and extending laterally inward from the inner side of the main body section, each of the tabs having an extension section and a terminal section attached to the section of extension, the terminal section configured for the mechanical clutch between the convolutions of the perimetric spirals of the internal spring assembly of a mattress, wherein the wall and the upper and lower surface of the main body section of the inner walls and edges of the mattress . According to another aspect of the invention, a structurally integrated mattress includes an assembly of internal springs having a plurality of parallel rows of spirals helically oriented vertically intertwined together with helically cross-linked wires, the mattress to the mattress internal wall structures having a main body section with a vertical wall surface, and the parallel flanges extending laterally from the main body section * opposite the vertical wall surface, each of the parallel flanges having a terminal section mechanically engaged with the convolutions of the perimetric spirals of the internal springs assembly whereby the vertical wall surface is positioned in parallel with the vertical axes of the spirals, and layers of cushioning material and mattress carpet attached to the wall structures. These and other novel aspects of the present invention are here described particularly in detail with specific reference to the accompanying Figures in which like reference numerals refer to similar elements. BRIEF DESCRIPTION OF THE DRAWINGS In the attached Figures: Figure 1 is a cross-sectional view of a side wall area of a mattress constructed with an internal mattress wall structure of the invention; Figure 1A is a cross-sectional view of an end wall area of a mattress constructed with an internal mattress wall structure of the invention; Figure IB is a cross-sectional view of an alternative embodiment of an internal mattress wall structure of the invention engaged with an assembly of internal springs; Figure 1C is a cross-sectional view of an alternative embodiment of an internal mattress wall structure of the present invention; Figure ID is a cross-sectional view of an edge area a mattress constructed with a modality alternative to an internal mattress wall structure of the invention; Figure 2 is a cross-sectional view of an internal mattress side wall structure of the invention; Figure 3 is a cross-sectional view of an end wall area of a mattress incorporating the internal mattress end wall structure of the invention; Figure 4 is a cross-sectional view of the internal mattress end wall structure of the present invention; Figure 5 is a partially cut away elevated view of a mattress incorporating the internal mattress edge structure of the invention; Figure 6 is a cross-sectional view of the internal corner wall structure of the mattress of the invention; Figure 6A is a perspective view of an alternative embodiment of the internal corner wall structure of a mattress of the invention; Figure 7 is a top view of the assembly of internal springs of the clutch mattress with the internal mattress wall structure of the invention; Figure 8 is a combined perspective and a plan view of an alternative embodiment of the internal mattress wall structure of the invention; Figure 9 is a plan view of a corner area of an internal spring assembly engaged with the alternative embodiment of the inner corner wall structure of the mattress of the invention; Figures 10A and 10B are cross-sectional views of an alternative preferred embodiment of the internal wall structures of the mattress of the invention; and Figure 11 is a cross-sectional view of an edge area of a mattress with a single side of the present invention. With reference to Figure 1, a cross section of a mattress, generally indicated at 1, taken along the width of the mattress so that the view is along the length of the mattress is illustrated. The following description is made with general reference to generally rectilinear mattresses having orthogonal end and side walls without taking into account the length of the walls since they can vary between the different conventional mattresses from individual to matrimonial. The present invention relates to mattresses of all sizes. The internal construction of the mattress includes an internal spring assembly, indicated generally at 10, including a plurality of spring coils 11 (hereinafter referred to simply as "spirals"), each having a series of helically intermediate convolutions 12 and upper and lower terminal convolutions, 13 and 14, respectively, each of the convolutions having a general axis and vertically oriented. The coils 11 may be arranged in an internal spring assembly in any way, but most commonly they are arranged in rows to fill substantially the entire area within the generally rectilinear perimeter of a mattress, as described for example in US Patent 4,092,749, hereinafter incorporated by reference, and shown in Figure 8. The terminal convolutions 13 and 14 of each of the spirals are commonly connected by helically cross-linked wires 15 which are bonded in the tangential convolutions of the rows of spirals in adjacent, across the width of the assembly of internal springs 10. A helically crossed end wire is also installed along the terminal convolutions of the coils in the end rows of the internal spring assembly. However, because there can not be any edge wire in the internal spring assembly with which the wall structures of the invention are engaged, there is no helical lateral wire in the terminal convolutions along the side of the assembly of internal springs. Although described in this regard, it is understood that the invention can also be practiced in connection with an assembly of internal springs which is entirely conventional, having upper and lower edge wires, and a wire helically linked in the edge wires and the wires. perimetric spirals. An internal mattress wall structure 20 is interlocked with each of the convolutions of all the spirals along the side walls, end walls and corners of internal spring assemblies to form a substantially continuous wall structure. which surrounds or encloses the assembly of internal springs.The internal mattress wall structure 20 includes the structure which engages the longitudinal side walls of the internal spring assembly in what is referred to herein as, "the internal sidewall mattress structure. 20A "or simply the" side wall structure. "And the structure which engages the end walls of the internal spring assembly is referred to herein as" the internal mattress end wall structure 20B "or simply the" wall structure ". "extreme." As also shown in Figure 2, the internal mattress wall structure 20 includes a main body section 21, a generally flat side wall 22, an upper surface 23 and a lower surface 24 which are generally perpendicular to the side wall 22 to form an upper edge 25 and a lower edge 26, the parallel rows of the flanges 27 attached to and extending laterally inwardly from one side of the other. the main body section composed of the wall 22, each of the flanges 27 having an extension section 28 and a terminal section 29. In some embodiments the extension section 28 is essentially eliminated. The flanges 27 are specially configured for a mechanical clutch with the perimetric spirals of the internal spring assembly by means of a frictional adjustment between the terminal and intermediate convolutions of the perimetric spirals, as specifically shown in a fully engaged position in Figure 1. In this embodiment, the extension section 28 of each of the tabs is conical to generally follow the helical angle between the convolutions of each of the spirals, and the terminal section 29 has a generally rounded cross section to be compressed slightly by the adjacent convolutions, and to facilitate the insertion of the eyelashes between the convolutions of the spirals. The upper and lower surfaces 23 and 24 of the internal side wall structure of the mattress are superposed by the terminal convolutions of the spirals and thereby compressed towards the adjacent intermediate convolution to grip the entire cross section of the wall structure 20 between each of the convolutions of the spirals along the side of the internal spring assembly, from the top to the bottom of the assembly of internal springs and spirals. A substantial space is provided between each of the flanges 27, the extension sections 28 and the end sections 29 in order to achieve the tight mechanical adjustment of the flanges between the spiral convolutions. As also shown in Figures 1 and 2, the upper and lower surface 23 and 24 each additionally includes a flange 30 which protrudes generally perpendicular from the surface and approximately aligned with the terminal sections 29. As shown in FIG. Figure 1, the flange 30 is positioned relative to the end sections 29 to be superimposed by the terminal convolutions of the spirals, thereby further contributing to the interlocking mechanical clutch of the internal mattress wall structure with the internal spring assembly. The flange 30 of the side wall structure 20 shown in Figure 1 mechanically engages with the first few helical turns of the link wire 15. The flange 30 of the end wall structure 20B shown in FIG.

Figure 3 is mechanically clutched against an inner side of the link wire 15. As shown in Figures 1 and 2, when the wall structure is formed of an extruded foam, the side wall 22 may include an internal chamber or slightly concave which is forced outward to a vertical plane by the convergence of the flanges 27 as they are entangled with the convolutions of spiral. As shown imaginatively in Figures 1 and Figures 1A and IB, the side wall 22 can extend vertically beyond the upper and lower surfaces 23 and 24, thereby extending beyond the terminal convolutions of the spirals, for extending the upper and lower surfaces 25 and 26 and edges 25a and 26a, closer to the outer edge (upholstered) mattress. The side wall 22 in this embodiment thus substantially extends over the entire surface area of the finished mattress side walls to thereby create an even more smooth and flat finished appearance to the finished mattress walls, which largely contributes to the attractive mattress consumer. In an alternative embodiment of Figure IB, the upper and lower edges 25A and 26A are enlarged to provide a greater area of horizontal surface to the wall structures, which improves the characteristics of support and facilitate the joining of the material of quilting and upholstery. For a thicker mattress, for example having an internal spring assembly with higher coil springs, and more padding on the sleeping surface, the height or vertical extension of the wall structures 20 can be increased by stacking rows of extruded wall, as shown for example in Figure 1C. An upper wall structure 20u can simply be stacked or interlocked with a lower wall structure 201 to increase the height of the side wall 22 as measured from the upper surface 23 to the lower surface 24. The lowest individual height profiles of the structures 20u and 201 are also advantageous because they are somewhat simpler to manufacture by means of a foam extrusion process than the structures having a larger cross-sectional profile. As shown in Figure ID, space is provided for mounting the handle fitting 49 by means of cuts 48 in the main body section 21 of the wall structure 20, to project them through the side wall 22 and through the material of carpet, at various points around the perimeter of the mattress to fix the handles to the mattress and / or upholstery material. The cuts 48 effectively hide the presence of the accessories 49 for provide a smooth finish appearance to the carpet on the handle H. In each of the embodiments of the wall structures of the invention, it is important to note that as a result of the construction of foam material and the geometry in cross section of the eyelashes interlaced the wall structures have springs and supporting features which are comparable and even superior to the supporting features of the internal spring assembly, so that the sides and edges of a mattress constructed with the wall structures of the invention provide for at least one support the same as the internal spring area of the mattress, and an improved support on the edges of the mattress of the prior art, including those based primarily on an edge wire for the edge support. Also, each of the structures described can be made of closed cell extruded foam such as a polyethylene which has excellent elasticity properties for the described use. The extrusion process forms a hard external film in each of the structures which helps in the mechanical clutch of the structures with an internal spring assembly, that is, the structures can not be easily broken by the inner spring wire. The film also allows the structure maintain the described shapes and configurations throughout the life of the mattress. As shown in Figures 3 and 4, the cross-sectional profile of the inner end wall structure of the mattress 20B, configured to engage with the ends of the internal spring assembly, is slightly different from the side wall structure 20A, in which the lower flange 27 is partially truncated to allow it to be adjusted between the terminal convolution and the adjacent intermediate convolution which are at different elevations than the other convolutions seen on the assembly side, and to allow overlap of the flange 30 in the bottom surface 24 by means of the helical end wire which links the terminal convolutions of the spirals along the end of the internal spring assembly, to further improve the mechanical clutch of the end wall structure 20B with the spring assembly internal. Other cross-sectional profiles of the wall structures are within the field of use of the invention, as illustrated for example by Figures 10A and 10B, wherein the terminal sections 29 are slightly more circular, the tabs 27 minimized and the spaces between the tabs slightly enlarged to provide increased adaptability of the structure to engage with helical spirals of various dimensions. Significantly * there are spaces between each of the flanges 27 and the terminal section 29, to facilitate the clutching of the wall structures with the spirals, and to allow sufficient space for the helical convolutions of the spirals to pass. Also, the flanges 30 are slightly extended to increase the frictional grip force with overlapping end convolutions and helical bond wires. In fact, the wall and corner structure of the invention can be adapted pair *, adjusted with any type of helical spiral arrangement while the flanges are sized to fit between convolutions of the spiral. For example, the main body section 21, on the wall surface 22 and / or the upper and lower flanges 27 which clutch between the intermediate and terminal spiral convolutions may have a larger size - or smaller so that the total height of the wall structure is equal to or greater than that of the perimetric spirals. In practice, the end wall and side structures are easily interlocked with an internal spring assembly simply by aligning the upper and lower edges 25 and 26 with the terminal convolutions of the perimetric spirals, where the flanges 27 are aligned with the spaces between the convolutions of the spirals, and a shock force applied along the linear extension of the vertical wall 22 to force the clutch of the end sections 29 with the convolutions of spirals. In other words, the wall structures are simply clutched by pressure on the perimeter of the internal spring assembly, without the need for special tools, fasteners, or assembly techniques. Referring now to FIGS. 5 and 6, the internal mattress wall structure 20 further includes corner pieces 30, configured to be adjusted by means of pressure and secured in the corner coils of the rectangular internal spring assembly, and for splicing the terminal ends of the side wall and end structures 20A and 20B to form a smooth corner wall in the internal structure of the mattress. The corner pieces of this embodiment have a main body section 31 with an arcuate outer corner wall 32, intersecting internal walls 33, and a generally circular cavity 34 in the main body sized to fit radially in the convolutions of a single spiral in the corner of the assembly of internal springs. As shown in Figure 6, the corner pieces can be formed as a single extruded piece, as will be described below, with the arched corner angle less than ninety degrees, so that the inner walls 33 can be separated to install the piece in the spiral, for which to place the perpendicular internal walls and smooth the outer wall of the junction of the side wall and end structures, to provide a mechanical gripping force of the corner piece on the corner spiral. As shown in Figure 6A, the corner pieces 30 can be alternately formed with vertically extended external arched corner walls 35 to form upper and lower extended arcuate surfaces 36 and 37 which are coplanar with the upper and lower extended surfaces 25 and 26 of the corresponding embodiments of the side wall structures 20. A cut 38 can be formed between the inner walls 33 and the corner walls 35 to facilitate the clutch with the corner coils and with the upper and lower end convolutions of the coils . As shown in Figure 7, the linear length of the side wall structures 20A and the end wall structures 20B can be selectively cut to closely match the length of the ends and sides of the internal spring assembly so that the structures combined clutch all or substantially all in the perimetric spirals, with the ends spliced into the wall structures and the other corner pieces forming a smooth and continuous vertical wall surface 22 around the perimeter of the mattress. As shown in Figures 1, 3 and 5, the corner and wall structures are critical for the proper and integral joints of many layers of cushioning material and mattress upholstery in the internal springs assembly and directly in the corner structures. and wall. As we found in a typical mattress, the multiple layers of material and layer 40 are placed on the terminal convolutions of the spirals and extend towards the edges of the mattress 25 and 26, as clearly defined by the wall structures 20A and 20B. Prior to attaching an outer carpet layer 43, an inner cover 42 is pulled down on the edges 25 and 26, smoothed against the vertical wall surface 22, and stapled directly through the wall surface 22 to the section of main body 21. by means of a series of fasteners 45, which may be for example enlarged staples or barbed tacks or helical pins or the like, which when inserted through the wall surface 22, and through the Film layer of the structure formed in an extrusion manufacturing process, firmly clutter the wall structures to tightly secure the liner and all the quilting layers below it to the internal structure of the mattress. The wide area of The wall surface 22 allows the mattress assembler to optimally select the lining fastening points 42 to place the outer edge of the mattress 46 substantially equidistant from the upper and lower edges 25 and 26 of the wall structures 20. The wall surface 22 with this it makes possible a taped edge with tapestry 47 which is very straight and exact, since it follows the upper and lower edges 25 and 26, or 25a and 26a. The straight taped edge 47 also contributes greatly to the consumer appeal of the finished mattress. As shown for example in Figures 1, 3 and 5, any layer of cushioning material and carpet used in the construction of mattresses can be fixed in various combinations to the structures of the mattress of the invention, including but not limited to the lamination of wool, polyurethane and / or high performance foam, cotton or wadding felt, MT lining, SP3 foam convolution foam fiber padding, or other suitable materials. Figure 8 illustrates an alternative embodiment of the wall structures of the invention in which the flanges 27 are vertically oriented and relatively spaced to fit between and mechanically engage the perimeter spirals. The terminal and extension sections of the eyelashes can be similarly configured as described above, and the body section The main similarly provides the outer wall surface 22 and the upper and lower edges 25 and 26. As shown in Figure 9, the corner piece 30 of this embodiment is simply a short section of the wall structure with two tabs spaced apart for encircling and engaging the corner spiral and its two adjacent coils, to form the smooth arched corner wall 32. As illustrated in Figure 11, because the wall structures of the invention contribute significantly to the supporting characteristics of the invention. In the long term of a mattress thus constructed, the structures 20 can advantageously be incorporated into a mattress on one side, generally indicated at 50, having additional upholstery and cushion materials attached to an upper surface 51, and a generally planar lower surface 52. In this mode, a substantial amount of additional material and padding is attached to the internal structure of the mattress of the same it was as described above with 45 widened staples. Constructed with foam padding and internal springs which do not weaken only the upper surface 51 is used as a sleeping surface. The additional perimetric support provided by the wall structures 20 allows a mattress of one side 50 to have a performance equivalent to a conventional mattress which is regularly flipped over. Also the Removal of padding material and bottom surface carpet reduces the total height of the mattress and provides a more stable fit in the mattress foundation. Any of the corner and wall structures of the invention can be formed by extrusion of extrudable thermoplastic foam materials such as polyethylene, polyethylene-based polymers, including EVA, ionomers and other copolymers and are preferably made from polyurethane foam. closed cells extruded. The thickness, shape and contour of the structures can be selectively varied through the design of extrusion dies and the selection of material. The thickness of the film which forms the structure in the extrusion process can be varied by a degree of extrusion. Materials and additives can be selected to provide any attribute and characteristic of desired edge support such as firmness, compression density, load deflection, fire retardancy or color. Also, the intension allows for the complete removal of the relatively hard edge wires from the internal spring assemblies of the prior art, thereby enabling a mattress constructed in accordance with the invention to be bent along the transverse axis, for example in half, to facilitate handling during transport.

The invention in this way provides improved internal mattress wall structures which are easily assembled with conventional internal spring assemblies by an interlaced clutch without the need for specialized mounting tools or fasteners. The smooth wall surface of the structures provides an optimal area for an integral bonding of the inner cushion layers, as well as well defined upper and lower edges, all of which improve the finished appearance of the upholstered edges of the mattress. Although the invention has been described with reference to certain preferred and alternative embodiments it will be appreciated by those with ordinary skill in the art that many different variations and modifications may be made * to the wall structures and corners described without departing from the basic concepts and principles of the invention, so that any variation and modification is equivalent to the invention as will be defined by the appended claims.

Claims (22)

1. CLAIMS 1. An internally enclosed mattress wall structure with coils of an internal spring assembly to serve as an internal structural component of a mattress, the wall structure characterized in that it comprises: a main body section having a wall surface generally flat, upper and lower surfaces intersecting the wall surface, a series of parallel flanges extending laterally of the main body section away from the wall surface and dimensioned to be inserted between the convolutions of the peripheral coils of an internal spring assembly, each of the tabs being spaced from the adjacent tabs and having end sections configured for an intimate mechanical clutch between the convolutions of the peripheral coils of an internal spring assembly, the flat wall surface of the wall structure is positioned in a perimeter of the internal spring assembly and extends at least from the top of the internal spring assembly to the bottom of the internal spring assembly to serve as a structural wall of a mattress.
2. 2. The wall structure according to claim 1, characterized in that it comprises a flange rising from the upper and lower surface and positioned at a point laterally inward of the wall surface where the terminal convolutions of the coils with which the wall structure engages, overlap the rim on the upper and lower surface.
3. 3. The wall structure of conformity. with claim 1, characterized in that the flanges are tapered to generally form a helical angle of the coils of the internal spring assembly with which the wall structure is engageable.
4. 4. The wall structure according to claim 1, characterized in that the cross-sectional configuration of the terminal sections of the flanges is generally circular.
5. The wall structure according to claim 1, characterized in that the wall surface is internally rounded.
6. The wall structure according to claim 1, characterized in that at least one of the flanges is partially truncated.
7. 7. The wall structure, according to claim 1, constructed of extruded foam.
8. The wall structure according to claim 1, characterized in that the vertical length of the wall surface is at least equal to the dimension of height of the spirals of an assembly of internal springs with which the wall structure is clisable.
9. 9. The wall structure according to claim 1, characterized in that it is engaged in a perimeter of a mounting of internal springs of a mattress.
10. 10. The wall structure according to claim 1, characterized in that it is constructed of molten polymer foam.
11. 11. The wall structure of claim 1, characterized in that it has a generally linear extension engaging with the straight side or the end wall of an assembly of internal springs.
12. The wall structure according to claim 1 characterized in that in an external generally curved configuration and internal cavity generally cylindrical to join a corner spiral of an assembly of internal springs.
13. The wall structure according to claim 1, characterized in that it comprises upper and lower sections which are arranged in relation to the assembly of internal mattress springs to form a continuous side wall of a mounting of internal mattress springs.
14. 14. The wall structure according to claim 1 characterized in that it is mechanically clutched with a mounting of internal springs of a mattress.
15. 15. The wall structure according to claim 14, characterized in that it also comprises mattress material material attached to the wall structure.
16. 16. The wall structure according to claim 1, characterized in that it is constructed of extruded closed cell foam.
17. 17. The wall structure according to claim 1, characterized in that the vertical length of the wall surface is greater than the height dimension of the coils of an internal spring assembly with which the wall structure is engaged.
18. 18. A mattress characterized in that it comprises: an assembly of internal mattress springs having a plurality of interconnected spirals arranged in generally parallel rows, and perimetric springs to define an assembly of generally rectilinear internal springs, an internal mattress wall structure comprising a main body section having a flat wall surface, upper and lower surfaces generally perpendicular to the wall surface, a flange extending from the upper and lower surface and a plurality of parallel flanges extending laterally from the main body section opposite the wall surface the flanges being spaced apart and having terminal sections mechanically engaged with the perimetric spirals of the internal spring assembly, the structure of internally interlocked mattress wall with convolutions of the perimetric spirals of the internal mattress springs assembly by means of the insertion of the wall structure flanges and the flanges between the convolutions of the perimetric spirals, the wall structure in this way positioned so that the flat wall surface is positioned on the perimeter of the internal springs assembly to define an internal perimeter of the mattress, and extending at least from the top of the inner springs assembly to the lower part of the springs assembly. to form upper and lower internal edges of the mattress, and cushioning material and mattress carpet overlaying the assembly of internal springs and the internal mattress wall structure and directly attached to the internal mattress wall structure.
19. 19. The mattress according to claim 18, characterized in that the internal wall structure of The mattress includes a plurality of linear sections of the wall structure with continuous spliced ends by means of which the wall structures substantially enclose an internal spring mounting perimeter.
20. 20. The mattress in accordance with the claim 18 further comprising a corner structure having a main body section with an arcuate wall surface and an opening in the main body section for receiving a corner spiral by means of which the corner structure is engaged in the corner spring.
21. The mattress according to claim 18, characterized in that the cushion and upholstery material of the mattress is attached to the internal mattress wall structure by means of staples which are widened through the material and into the section of the main body.
22. 22. A single-sided mattress having a single padded sleeping surface and a generally flat lower surface, the mattress characterized in that it comprises: an assembly of internal mattress springs having a plurality of interconnected spirals arranged in generally parallel rows, a surface of upper and lower support, and perimetric spirals to define an assembly of internal springs generally rectilinear, an internal mattress wall structure comprising a main body section having a flat wall surface, upper and lower surfaces generally perpendicular to the wall surface, a flange extending from the upper and lower surface, and a series of parallel flanges extending laterally from the main body section opposite the wall surface the flanges being spaced and having a mechanically engaged end section with the peripheral spirals of the internal spring assembly, the internal mattress wall structure interlocked with the convolutions of the peripheral spirals of the assembly of internal springs of the mattress by means of the insertion of flanges of the wall structure and the flanges between the convolutions of the perimetric spirals, the wall structure of this way positioned so that the flat wall surface is positioned on the perimeter of the wall. l assembly of internal springs to define an internal perimeter of the mattress, and extending at least from the top of the internal springs assembly to the lower part of the internal springs assembly to form upper and lower internal edges of the mattress, and the material of carpet and mattress padding is too much to the top surface of the spring mount internal and internal wall structure of the mattress are attached directly to the internal wall structure of the mattress to provide a cushioned sleeping surface, and the mattress mat material closely bonded to the lower surface of the wall structure and the mounting of the mattress. inner spring to form a lower flat mattress.