MXPA98010138A - Support mattress support module - Google Patents

Abstract

The present invention relates to a support module for use in a spring mattress foundation, for supporting a support surface above a base of a spring mattress, the support module including a substantially horizontal upper base comprising two segments. of wire, each having a predominantly straight wire portion, and curved end portions, each wire segment being separated from the others, and remaining in a common plane, and each end portion being straight in an image relationship of mirror angularly convergent with the otr

Description

SUPPORT MATTRESS SUPPORT MODULE FIELD OF THE PRESENT INVENTION The present invention relates generally to support modules used in a spring mattress foundation (box spring), to rigidly support a support surface at a previously determined separation of a base of the spring mattress.

BACKGROUND OF THE INVENTION Normally, in the process of manufacturing spring mattresses, a first manufacturer builds a spring mattress foundation that includes a support surface and a plurality of support modules. The first manufacturer can also attach a spring mattress base to the support modules. The foundation of the spring mattress is then shipped by the manufacturer to a bed manufacturer, who secures the support modules to a spring mattress base, if this is not done by the first manufacturer, and then applies the upper cushion and a cover to finish the mattress springs. In addition to consumer preference with regard to the strength of spring mattresses, storage and shipping costs are additional factors that control the design of spring mattress foundations, and in particular, the support modules used in the spring mattresses. same. Many different types of support modules are known which can rigidly support a support surface at a predetermined spacing of a spring mattress base, and which can be stored and shipped economically during the manufacturing process. For example, Schultz J.R. and co-workers, U.S. Patent No. 4,377,279, disclose support modules that are hingedly connected to both the support surface and the base of the spring mattress, whereby the foundation of the spring mattress can be collapse for storage and shipment. In addition, the support modules can be configured in a different manner to allow total stiffness, or varying degrees of collapsible compression. In Rodgers et al., U.S. Patent No. 5,346,188, the support modules are hingedly secured to the support surface by the first manufacturer, and the support modules are collapsed against the support surface for storage and shipping. When the spring mattress is to be finished, the bed manufacturer extends and secures the support modules to the base of the spring mattress during the cushioning and covering process, whereby the support modules provide rigid support for the mattress. Support surface above the base of the mattress springs. Schultz J.R. and co-workers, U.S. Patent No. 5,622,357, similarly disclose support modules pivotally secured to the support surface, collapsed for storage and shipping, and subsequently extended and secured to the base of the spring mattress by the manufacturer. of beds, supporting the support modules rigidly to the support surface. Another type of spring mattress foundation is disclosed in Hagemeister et al., US Pat. No. 5,052,064, wherein the support modules are fixed securely to the support surface, whereby, the mattress foundations of resulting springs can be stacked ancillary for shipping and transport. In particular, the support modules are welded to the support surface by the first manufacturer, and are subsequently stapled to the base of the spring mattress by the bed manufacturer. Hagemeister et al., U.S. Patent No. 5,361,434, disclose a similar spring mattress foundation, including elastic support springs located between the support modules, to support in an elastic manner the localized loads that are applied. to the support surface between the localized areas of the support modules. It is an object of the present invention to provide a novel and non-obvious additional type of spring mattress support module, which allows economical storage and shipping of spring mattress foundations to bed manufacturers, as described above.

SUMMARY OF THE PRESENT INVENTION Briefly summarized, the present invention includes a spring mattress foundation having a support surface, such as a wire mesh assembly, and a plurality of non-elastic support modules that firmly support the surface of the mattress. support at a predetermined distance above a spring mattress base. Each support module includes a single wire form having an upper base, a lower base, and four straight legs rigidly connecting the upper and lower bases of the support module. In one features of the present invention, the support module includes two upper wire segments, each having a predominantly straight wire portion, and curved end portions. Each upper wire segment is in a common plane spaced apart from each other, and each portion of straight wire is in an angularly convergent mirror image relationship with the other straight wire portion. In a second feature of the present invention, the lower base includes two predominantly straight wire segments that remain adjacent one to the other, and a predominantly straight crossed wire segment that intersects orthogonally to the adjacent wire segments, and which is fixedly secured to the same. Moreover, the adjacent wire segments are preferably in a parallel relationship and in a common plane with each other, and the crossed wire segment which is secured to both adjacent wire segments, maintains the parallel relationship between them. In still a third feature of the present invention, the lower base is disposed above the upper base, and four straight and rigid legs extend between the upper base and the lower base, the lower base preferably being in a parallel parallel plane with a plane of the upper base. Two of the legs (the first pair) extend in a first support plane from the upper base to the lower base in a mirror image relationship angularly convergent with one another, but separated one from the other, while one of the other two legs (the second pair) extends from the upper base to the lower base towards the first support plane. In still another feature of the present invention, the support modules of the present invention are configured in a spring mattress foundation, wherein the foundation of the spring mattress can be stacked anidably on top of a second identical spring mattress foundation, the lower bases of the spring mattress foundation support modules received through the wire mesh assembly inside the support modules of the second base of the identical spring mattress. In a first embodiment of the present invention, a second leg of the second pair of legs is coplanar with the first leg of the second pair of legs, or both legs are in a second support plane at identically arranged distances from the first pair of legs. The second pair of legs preferably lie in a parallel relationship with one another, and preferably the lower wire segments are of identical lengths, and the first and second curved end portions are of identical lengths. The first support plane also intersects preferably the plane of the upper base at an angle of approximately 85 °, and the second support plane preferably intersects the plane of the upper base at an angle of approximately In a second embodiment of the present invention, the first leg of the second pair of legs is in the second support plane closer to the first pair of legs than the second leg of the second pair of legs, the lower wire segments are of different lengths, and the first end portions Curves are of different lengths. In still a third modality, the second leg of the second pair of legs extends from the upper base to the upper base outside of a coplanar relationship with the first leg of the second pair of legs, the lower wire segments are of an identical length, and the first portions of Extreme curves are of different lengths. The fourth, fifth, and sixth embodiments of the present invention are a mirror of the first, second, and third embodiments of the present invention, with the exception that the second support plane extends from the plane of the upper base in a angle of 90 ° instead of approximately 85 °. Preferably, in each of the embodiments, the support module is a single wire segment. The upper base is welded to the wire mesh assembly, and each upper wire segment is separated from the other upper wire segment, the first end portions being curved thereof closer to each other than the second curved end portions of the wires. same. In addition, the upper wire segments of some of the support modules are welded to at least one transverse wire and at least one longitudinal wire of the wire mesh assembly, and the upper wire segments of the support modules are welded to a wire from the edge of the wire mesh assembly. The support modules are also preferably secured to a spring mattress base, stapling the lower wire segments and the wire segment transverse thereto, whereby the staples securing the lower wire segments are oriented orthogonally to the staples that secure the crossed wire segment.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a first embodiment of the support module of the present invention. Figure 2 is a front elevational view of the support module of Figure 1. Figure 3 is a side elevational view of the support module of Figure 1. Figure 4 is a top plan view of the support module of Figure 1. 1.

Figure 5 is a top plan view of the support module of Figure 1, secured to the transverse wires and to a longitudinal wire of a wire mesh assembly. Figure 6 is a top plan view of the support module of Figure 1, secured to the transverse wires and to an edge wire of a wire mesh assembly. Figure 7 is a perspective view of a second embodiment of the support module of the present invention. Figure 8 is a front elevational view of the support module of Figure 7. Figure 9 is a side elevation view of the support module of Figure 7. Figure 10 is a top plan view of the support module of Figure 7. Figure 11 is a perspective view of a third embodiment of the support module of the present invention. Figure 12 is a front elevated view of the support module of Figure 11. Figure 13 is a side elevational view of the support module of Figure 11. Figure 14 is a top plan view of the support module of Figure 11. The. Figure 15 is a perspective view of a fourth embodiment of the support module of the present invention. Figure 16 is a front elevated view of the support module of Figure 15. Figure 17 is a side elevation view of the support module of Figure 15. Figure 18 is a top plan view of the support module of Figure 15. Figure 19 is a perspective view of a fifth embodiment of the support module of the present invention. Figure 20 is a front elevational view of the support module of Figure 19. Figure 21 is a side elevation view of the support module of Figure 19. Figure 22 is a top plan view of the support module of Figure 19. Figure 23 is a perspective view of a modality of the support module of the present invention. Figure 24 is a front elevated view of the support module of Figure 23. Figure 25 is a side elevation view of the support module of Figure 23. Figure 26 is a top plan view of the support module of Figure 2. 3.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the Figures, the preferred embodiments of the support module of the present invention will be discussed, where like structures will be referred to with like reference numbers. In general, the support module of the present invention is preferably a single length of wire configured to define an upper base, a lower base, and four rigid support legs extending between the upper base and the lower base. A first pair of coplanar legs extend from the upper base to the lower base in a mirror image relationship converging with each other, and a second pair of legs extend from the upper base to the lower base one parallel to the other. , the second pair of legs extending towards the lower base at an inclination with the upper base toward the first pair of legs. The upper base is secured to a support surface of a spring mattress foundation, and the lower base is secured to a spring mattress base, whereby, the support module rigidly supports the mattress support surface of the mattress. springs to a previously defined separation of the base of the spring mattress. With respect to the first preferred embodiment of the support module of the present invention, the upper base 20 consists of two upper wire segments, 22, 24, each having a predominantly straight wire portion 26, 28, and respective first curved end portions 30, 32, and second curved end portions 34, 36. The upper wire segments 22, 24 remain in a common first plane spaced apart from one another, each straight wire portion 26, 28 being in an angularly convergent mirror image relationship with each other, and the corresponding curved end portions of each upper wire segment 22, 24 They are of an identical length. The upper base 20 is designed to support a conventional spring mattress wire mesh assembly 38 that includes the longitudinal wires 40 and the transverse cross wires 42 surrounded by a rectangular edge wire 44. Due to the specific configuration of the segments of upper wire 22, 24, the upper base 20 gives an overall trapezoidal impression, and because of this configuration, the upper base 20 can be oriented in a number of different ways to secure it to rectangular sections 46 formed by the longitudinal wires 40, transverse cross wires 42, and edge wire 44. In particular, the two upper wire segments 22, 24 of the upper base 20 are preferably welded to the longitudinal wires 40 and the transverse cross wires 42 of the wire mesh assembly 38, as well as to the corners and sides of the rectangular edge wire 44, as shown, for example, in the Figures 5 and 6. The lower base 48 of the support module preferably includes two predominantly straight wire segments 50, 52 of an identical length, which remain in a parallel relationship and in a second common plane one with the other, and a segment of predominantly straight cross wire 54 which intersects orthogonally the parallel wire segments 50, 52. The crossed wire segment 54 is welded to the two parallel wire segments 50, 52 near the respective first ends, 56, 58 thereof , to maintain the parallel relationship between them, as well as to provide a rigid bottom base 48 of the support module. In addition, the second common plane of preference is parallel to the first common plane containing the upper base 20 of the support module. Although other fastening methods may be employed, such as metal cross rails formed and notched, the lower base 48 of the support module is preferably secured to a spring mattress base, stapling the parallel wire segments 50, 52, and the cross wire segment 54 thereto, whereby the staples securing the parallel wire segments 52, 50 are oriented orthogonally to the staple securing the cross wire segment 54. This staple orientation resists movement of the lower base 48 of the support module, and in particular, the staples securing the parallel wire segments 50, 52 prevent any rotation of the cross wire segment 54, and the staple of the cross wire segment 54 prevents any rotation of the any of the parallel wire segments 50, 52. The four predominantly straight legs of the support module rigidly support the upper base 20 r above the base lower 48. In particular, a first leg 60 extends from a first curved end portion 30 of an upper wire segment 22 to a second end 62 of a parallel wire segment 50; a second leg 66 extends from the first curved end portion 32 of the other upper wire segment 24 to a second end 64 of the other parallel wire segment 52; a third leg 68 extends from the second curved end portion 34 of the upper wire segment 22, to a first end 70 of the crossed wire segment 54; and a fourth leg 72 extends from the second curved end portion 36 of the second upper wire segment 24, to a second end 74 of the crossed wire segment 54. The third leg 68 and the fourth leg 72 are coplanar, and remain in place. a first support plane intersecting the plane of the upper base at an angle of about 85 °, and the first leg 60 and the second leg 66 are in a second support plane intersecting the plane of the upper base at an angle ß of approximately 75 °. Furthermore, the two parallel legs 60, 66 remain in the second support plane at distances identically arranged respectively from the third leg 68 and the fourth leg 72 in the first support plane, as shown in Figure 3, and the third leg 68 and the fourth leg 72 remain in the second support plane in a mirror image relationship angularly convergent with one another, but separated from each other, as shown in Figure 2. Specifically, the third leg 68 and the fourth 72 form opposite angles o¿ with respect to the second common plane of the support module. In order that the bases of the spring mattress of the present invention are stacked anidably, the two parallel legs 60, 66 extend towards the other two legs 68, 72 in a direction from the upper base 20 towards the lower base 48, and the other two legs 68, 72 extend towards each other in a direction from the upper base 20 towards the lower base 48. This inward inclination of the legs 60, 66, 68, 72 allows nesting support modules of a Spring mattress foundation when stacked for storage and shipping. In particular, when nesting two spring mattress foundations including support modules of the present invention, the lower base 48 and the four legs 60, 66, 68, 72 of a support module can be received through the assembly of wire mesh 38 of another spring mattress foundation of the present invention inside a support module of the other foundation of the mattress of re.sortes. In addition to this nesting, this inclination of the legs 60, 66, 68, 72 allows the legs not only to provide a vertical support of the upper base 20 above the lower base 48, but also to provide support of the upper base 20. against the lateral directional loads applied hopzontally inside the upper base 20. In particular, with reference to Figure 4, the four legs 60, 66, 68, 72 of the support module extend from the four curved end portions 30, 32 , 34, 36 of the two upper wire segments 22, 24 forming the upper base 20 towards the lower base 48. Two of the legs 60, 66 extend in a closely spaced parallel relationship to each other from the first portion of more closely spaced converging end 30, 32 of the upper wire segments 22, 24 to the lower base 48, and remain in a second support plane inclined at an angle ß of about 75 ° with the pl year of the upper base 20, as discussed above. Due to this 75 ° inclination with the plane of the upper base, these two legs 60, 66 are inclined to support the horizontal lateral loads applied within the plane of the upper base in the direction of arrows A in Figure 4, up to a greater degree than the horizontal lateral loads applied in the plane of the upper base in any other direction. In addition, the parallel arrangement of this pair of legs 60, 66 provides an identical double vertical support of a localized area of the wire mesh assembly 38 for a selected vertical reinforcement thereof. The other two legs 68, 72 extend in a first support plane inclined at an angle and approximately 85 ° with the plane of the upper base, and each leg 68, 72 extends at an angle a with the plane of the upper base in a ratio of mirror image with the respective other leg 68, 72, also as discussed above. Due to this orientation of this pair of legs 68, 72, these legs support the upper base 20 against the horizontal lateral loads applied within the plane of the upper base in the directions of arrows B, C in Figure 4, respectively, to a greater degree than the horizontal lateral loads applied within the plane of the base in any other direction. Further, if the inclination of this pair of legs 68, 72 is greater than the inclination of the pair of legs 60, 66, then the horizontal lateral load support of this pair of legs 68, 72 will be greater in their respective directions of the arrows B, C the lateral load support provided by the pair of legs 60, 66 in the direction of the arrows A. In another embodiment of the support module, as shown in Figures 7 to 10, the second leg 76 and the first leg 60, remain coplanar in a second support plane, but second leg 76 is disposed closer to the pair of legs 68, 72 than the first leg 60. This is done by providing different lengths of the curved end portions 30, 80 of the upper wire segments 22, 24, respectively, whereby, the second leg 76 and the first leg 60 extend from the upper base 20 to the lower base 48 in a stepped relationship, as shown in Figure 9. In particular, the module of s The operation of Figures 1 to 4 is modified by increasing the length of the first curved end portion 80 of the upper wire segment 24, and decreasing the length of the lower parallel wire segment 78, in order to reach the support module of the legs. Figures 7 to 10. This embodiment varies the localized vertical support of the wire mesh assembly 38 by the second pair of legs of the support module, that of the embodiment of the support module of Figures 1 to 4. In a third embodiment of the support module of the present invention, as shown in Figures 11 to 14, the angle? of the second leg 82 with the plane of the upper base decreases slightly from 75 °, thereby increasing the support provided against the horizontal lateral load applied in the direction A of Figure 4, against the first curved end portion 32. With In order to perform this decrease in inclination, the length of a parallel wire segment 84 is decreased, compared to the other parallel wire segment 50, while the first curved end portions 30, 32 of the upper wire segments 22 are reduced. , 24 are kept in equal lengths. Accordingly, in this embodiment, the second leg 82 is not coplanar with the first leg 60. The present invention further contemplates the combination of these two previous variations in the support module of Figures 1 to 4. In particular, in this module of support, the angle of the second leg with the plane of the upper base would be different from the angle of the first leg with the plane of the upper base, and the second leg and the first leg would extend from the upper base to the lower base in a tiered relationship not coplanar. In the fourth, fifth, and sixth embodiments of the support module of the present invention, which are found in Figures 15 to 18, 19 to 22, and 23 to 26, respectively, these modalities vary from the modes of the support modules of Figures 1 to 4, 7 to 10, and 11 to 14 only with respect to the angle and formed between the first support plane and the plane of the upper base. Although in the first three modalities, and was approximately 85 °, in the fourth, fifth, and sixth modalities, and is 90 °. Accordingly, the third leg 90 and the fourth leg 92 of the fourth mode, the third leg 94 and the fourth leg 96 of the fourth embodiment, and the third leg 98 and the fourth leg 100 of the fourth embodiment, each provide a maximum localized vertical support of the spring mattress support surface. In addition, it is also contemplated that the modifications of the fourth embodiment may be combined to form the fifth and sixth embodiments, just as the modifications of the first embodiment to form the second and third embodiments, as described above. Now, an ordinary expert in this field will be able to see that, during the assembly of a spring mattress foundation of the present invention, the upper bases of the support modules are welded to the cross wires, the line wires, and the edge wire of the mesh assembly as shown in Figures 5 and 6, for example, and the bottom bases are attached to the slats of a spring mattress frame, stapling or otherwise clamping the wire segments of the base to the splints, as described above. Furthermore, as discussed in the foregoing, each support module provides support in the primary vertical direction, as well as a directional support in the plane of the upper base against lateral loads. Therefore, due to the modular support modules, and the ability of each support module to join the wire mesh assembly in different orientations during spring mattress foundation assembly, several specific support features can be designed. the direction in the foundation of the spring mattress, as desired. Accordingly, it will be readily understood by persons skilled in the art that the present invention is susceptible of wide utility and application. Many embodiments and adaptations of the present invention may be seen other than those described herein, or will be reasonably suggested by the present invention and its foregoing description thereof, without departing from the substance or scope of the present invention. In accordance with the foregoing, while the present invention has been described herein in detail in relation to its preferred embodiment, it should be understood that this description is illustrative and exemplary only of the present invention, and is made solely for purposes of providing a complete and enabling disclosure of the invention. The foregoing description is not intended or to be construed to limit the present invention or to otherwise preclude any other embodiments, adaptations, variations, modifications, and equivalent configurations, the present invention being limited only by the claims appended hereto, and its equivalents.

Claims (28)

NOVELTY OF THE INVENTION Having described the above invention, it is considered as a novelty, and therefore, the content of the following is claimed as property: CLAIMS

1. A support module for use in a spring mattress foundation, for supporting a support surface above a base of a spring mattress, the support module including a top base comprising two wire segments, each having a predominantly straight wire portion, and curved end portions, each wire segment being separated from the others, and remaining in a common plane, and each end portion being straight in an angularly convergent mirror image relationship with the others.

2. A support module according to claim 1, characterized in that it consists of a single section of wire.

3. A support module for use in a spring mattress foundation, for supporting a support surface above a spring mattress base, this support module including a lower base comprising two straight predominant wire segments that remain one adjacent to the other, and a predominantly straight crossed wire segment that intersects the adjacent wire segments, and which is justly secured thereto.

A support module according to claim 3, characterized in that the adjacent wire segments are in a parallel relationship with each other, and in a common plane with each other, and the crossed wire segment intersects orthogonally to the parallel wire segments, and fixedly secured to them, to maintain the parallel relationship between them.

5. A support module according to claim 3, characterized in that it consists of a single section of wire.

6. A support module for use in a spring mattress foundation, for supporting a support surface above a spring mattress base, this support module including an upper base, a lower base disposed in a separate parallel plane with a plane of the upper base, and four predominantly straight legs extending between the upper base and the lower base, a first pair of legs extending in a first support plane from the upper base to the lower base, in a relationship mirror image angularly converging with each other, but spaced apart from one another, and extending a leg of a second pair of legs from the upper base to the lower base, towards the first support plane.

7. A support module according to claim 6, characterized in that it consists of a single section of wire.

8. A support module according to claim 6, characterized in that the first plane intersects orthogonally to the plane of the upper base.

9. A support module according to claim 6, characterized in that the second leg of the second pair of legs extends from the upper base to the lower base, towards the first support plane, and is not coplanar with the first leg of the second pair of legs.

A support module according to claim 6, characterized in that a second leg of the second pair of legs extends from the upper base to the lower base, in a parallel parallel relationship with the first leg of the second pair. of legs, thus leaving the second pair of legs in a second support plane.

11. A support module according to claim 10, characterized in that the first leg of the second pair is closer to the first pair of legs of the second leg of the second pair of legs.

12. A support module according to claim 10, characterized in that the first and second legs of the second pair of legs are in a second support plane, at distances identically arranged from the first and second legs of the first pair, respectively.

13. A support module according to claim 12, characterized in that the first support plane intersects the plane of the upper base at an angle of approximately 85 °. A support module according to claim 12, characterized in that the second support plane intersects the plane of the upper base at an angle of approximately 75 ° C. 15. A foundation of a spring mattress comprising a wire mesh assembly and support modules, each support module including an independent wire form configured to define a top base, a bottom base, and four predominantly straight legs interconnecting to the upper base with the lower base, securing the upper base to the wire mesh assembly, where: a. the upper base comprises two upper wire segments having predominantly straight wire portions, and first and second respective curved end portions, each upper wire segment being separated from the other, and remaining in a common first plane with the first end portions curves that are closer to each other than the second curved end portions thereof, with each portion of the wire being straight in an angularly convergent mirror image relationship with the other portion of straight wire; b. the lower base comprises two predominantly straight lower wire segments that remain in a parallel relationship with each other, and in the common second plane with each other, and a predominantly straight crossed wire segment that orthogonally intersects the next lower wire segments to the first ends of the same, and that is fixedly fixed to them to maintain the parallel relationship between them, the first common plane being parallel with the second common plane; c. a first leg of all four legs extends from the first curved end portion of one of the upper wire segments to a second end of one of the lower wire segments; d. a second leg of all four legs extends from the first curved end portion of the other of the upper wire segments, to a second end of the other of the lower wires; and. a third leg of the four legs extends from the second curved end portion of an upper wire segment, to a first end of the crossed wire segment; and f. a fourth leg of the four legs extends from the second curved end portion of the second upper wire segment, to a second end of the crossed wire segment. 16. A spring mattress foundation according to claim 15, characterized in that the support module consists of a single section of wire. A spring mattress foundation according to claim 15, characterized in that the upper wire segments of the support module are welded to at least one transverse wire, and at least one longitudinal wire of the wire mesh assembly . 18. A spring mattress foundation according to claim 15, characterized in that the upper wire segments of the support module are welded to an edge wire of the wire mesh assembly. 19. A spring mattress foundation according to claim 15, characterized in that at least one support module is secured to a spring mattress base, stapling the lower wire segments and the wire cross segment to the same, whereby the staples securing the lower wire segments are oriented orthogonally to the staple securing the crossed wire segment. 20. A spring mattress foundation according to claim 15, characterized in that all the support modules are configured in such a way that the base of the spring mattress can be stacked anidably on top of a second base of spring mattress. identical, the lower bases of the support modules of the spring mattress base being received through the wire mesh assembly inside the "support modules of the second foundation of the identical spring mattress." 21. A spring mattress foundation according to claim 15, characterized in that the third and fourth legs are in a first support plane, in a mirror image relationship angularly converging with one another, but separated one from the other. of spring mattress in accordance with claim 21, characterized in that the first leg it extends from the upper base to the lower base, towards the first support plane. 23. A spring mattress foundation according to claim 22, characterized in that the second leg extends in a coplanar relationship with the first leg. 24. A spring mattress foundation according to claim 23, characterized in that the first and second legs are in a parallel relationship separated from each other. 25. A spring mattress foundation according to claim 15, characterized in that the lower wire segments are of identical length. 26. A spring mattress foundation according to claim 15, characterized in that the lower wire segments are of different lengths. A spring mattress foundation according to claim 26, characterized in that the first curved end portions are of identical lengths. 28. A spring mattress foundation according to claim 26, characterized in that the first curved end portions are of different lengths. SUMMARY OF THE INVENTION A foundation of an anidable spring mattress includes support modules, each formed of a single length of wire, which define a top base, a bottom base, and four straight legs. The upper base is welded to a wire mesh assembly, and includes two upper wire segments, each having a straight wire portion, and first and second respective curved end portions, with each upper wire segment remaining in a first plane, with the straight wire portions remaining in an angularly convergent mirror image relationship with each other, each upper wire segment being separated from the others, with the first end portions thereof being closer together than the second end portions of the same. The lower base includes two straight lower wire segments that remain in a parallel relationship with each other, and in a second plane with each other, and a straight crossed wire segment that intersects orthogonally to the wire segments lower near their first ends, the first plane being parallel with the second plane. A first leg extends from the first end portion of an upper wire segment, to a second end of a lower wire segment, a second leg extends from the first end portion of the other upper wire segment to a second end of the other lower wire segment; a third leg extends from the second end portion of the first upper wire segment to a first end of the crossed wire segment; and a fourth leg extends from the second end portion of the second upper wire segment to a second end of the crossed wire segment. * * * * *