MATTRESS WITH MICRO-COIL SUPPORTED LUMBAR ZONE
A mattress including an inner spring assembly, a panel of micro-coils, and a quilted panel is disclosed. The innerspring assembly includes a plurality of spring elements and defines a support surface. The spring elements are arranged in rows defining upper, central, and lower spring structure areas. The panel of micro-coils is positioned over the support surface in the central spring structure area. The quilted panel includes a ticking material, a backing material, and a support material having a degree of compression provided between the ticking and backing materials. The ticking material, the support material and the backing material are all quilted together with an increased amount of stitching in a center section of the quilted panel aligned with the central spring structure such that the support material pre-compresses in the center section thereby defining a pocket. The panel of micro-coils is provided in alignment with the pocket.
This application claims priority to U.S. Provisional Application 63/483,656, filed Feb. 7, 2023 and U.S. Provisional Application 63/510,506, filed Jun. 27, 2023, both of which are incorporated by reference herein in their entirety.
FIELDThe present invention relates to mattress structures and in particular to a mattress spring structure with an improved lumbar zone support.
BACKGROUNDSome mattress technologies provide somewhat uniform support using a combination of inner springs and one or more foam layers provided under a mattress cover. However, uniform support presents a problem, because the weight distribution of the human body is not at all uniform. In fact, the lumbar region is where approximately 70 percent of the body weight of a sleeper lies. Although weight distribution of a sleeper is, of course, different from person to person, for a large majority, a sleeper's hips or buttocks will tend to sink excessively far into such mattresses as the foam layers breakdown from normal use over time. This problem is exacerbated when the mattress is used by two persons sleeping together.
This deficiency in support will tend to reduce the sleeper's comfort, to a greater or lesser degree depending on the person. However, a more important effect is that this deficiency in support may permit a person to sleep in a condition of postural misalignment. Spinal alignment, in a good sleeping posture, should be the same as that in a good standing posture. Thus a sleeper should be supported so that his or her spine will be laterally straight, and will be curved with no more (and no less) than normal lumber and thoracic arch and pelvic tilt. Distortions of this sleeping posture will produce immediate or gradual discomfort, and may also lead to backaches, or to vague discomforts which reduce the sleeper's overall level of health and well-being.
SUMMARYThe present invention overcomes these and other disadvantages of the prior art by providing an improved bedding structure, in which added lumbar support is provided under a quilted zoned topper that is used in making a mattress cover. This innovative structure includes a panel of micro-coils positioned only in a central region of the mattress and provides advantages of better postural support, and/or reduced manufacturing costs, and/or better in-service durability, and/or extra thermal insulation and padding and/or better comfort. This invention provides a method of offering variable support over the surface of a mattress by a simpler and therefore less expensive means.
According to at least one embodiment, a mattress is disclosed. The mattress comprises an innerspring assembly having a plurality of spring elements and defining a support surface, the spring elements arranged in rows defining upper, central, and lower spring structure areas, a panel of micro-coils positioned over the support surface in the central spring structure area, and a quilted panel. The quilted panel includes a ticking material, a backing material, and a support material having a degree of compression provided between the ticking and backing materials. The ticking material, the support material and the backing material all are quilted together by a stitching pattern providing an increased amount of stitching in a center section of the quilted panel aligned with the central spring structure area than adjacent head and foot sections of the quilted panel aligned with the upper and lower spring structure areas such that the support material pre-compresses in the center section thereby defining a pocket The quilted panel is provided over the panel of micro-coils such that the panel of micro-coils is provided in alignment with the pocket.
These and additional objects and advantages provided by the embodiments of the present invention will be more fully understood in view of the following detailed description and the accompanying Figures, wherein like reference numerals refer to like parts.
In the accompanying Figures:
The numerous innovative teachings of the present application will be described with particular reference to certain preferred embodiments. However, it should be understood that these classes of embodiments provide only a few examples of the many advantageous uses of the innovative teachings herein. In general, statements made in the specification of the present application do not necessarily delimit any of the various claimed inventions. Moreover, some statements may apply to some inventive features but not to others.
The mattress 10 comprises a multilayer structure formed from a plurality of distinct layers. Specifically, the mattress 10 comprise an innerspring assembly 42, a panel of micro-coils 30, a quilted panel 12. The innerspring assembly 42 is includes a plurality of spring elements 40 and defines a support surface 45. Further, the plurality of spring elements 40 forming the innerspring assembly 42 are arranged in rows defining an upper spring structure area 74, a central spring structure area 72, and a lower spring structure area 76. The panel of micro-coils 30 is positioned over the support surface 45 in the central spring structure area 72. The quilted panel 12 includes a ticking material 22, a backing material 24, and a support material 26 having a degree of compression provided between the ticking material 22 and the backing material 24. The ticking material 22, the support material 26 and the backing material 24 are all quilted together by a stitching pattern providing an increased amount of stitching in a center section 14 of the quilted panel 12 aligned with the central spring structure area 72 than adjacent head 18 and foot 20 sections of the quilted panel 12 aligned with the upper spring structure area 74 and the lower spring structure area 76 such that the support material 26 pre-compresses in the center section 14 thereby defining a pocket 28. The quilted panel 12 is provided over the panel of micro-coils 30 such that the panel of micro-coils 30 is provided in alignment with the pocket 28.
Having generally described the mattress 10, the various components and layers of the mattress 10 will be disclosed in greater detail.
With reference to the
As shown in
The mattress 10 includes the panel of micro-coils 30 positioned over the support surface 45 in the central spring structure area 72. The panel of micro-coils 30 add support and responsiveness to the central spring structure area 72 of the mattress 10. The added support and responsiveness is desirable as such region supports a bulk of the body weight, thus providing more support for the heaviest parts of the sleeper's body and relieving pressure on the lower back. Inclusion of the panel of micro-coils 30 enhances the sleep surface by increasing coil counts with the micro-coils in addition to the innerspring assembly 42. The panel of micro-coils 30 also improve air circulation within the mattress 10 to deliver improved comfort for the sleeper.
According to one or more embodiments, the panel of micro-coils 30 is formed from a plurality of small spring coils arranged in a grid and encased in a non-woven fabric. The non-woven fabric forms an encasement of each spring coil individually. As seen in
In one or more embodiments, the panel of micro-coils 30 represents approximately ⅓ of the mattress 10. In other embodiment, the panel of micro-coils 30 may range in size from about ¼ to about ½ of the mattress 10. In other words, the panel of micro-coils 30 can range in size from about ¼ to about ½ of the total area of the quilted panel 12 and/or the mattress 10 in top view. As such, it is noted that the panel of micro-coils 30 does not extend across an entirety or substantial entirety of the mattress 10 and is limited to areas specifically for lumbar support.
In one or more embodiments, and with reference to
In various embodiments, the one or more foam layers 50 have a total thickness ranging from ¼ inch to 6 inch, ½ inch to 4 inch, ½ inch to 2 inch or approximately ¾ inch, whereby the quilted panel 12 has an uncompressed overall thickness of approximately an inch. The individual layers of the one or more foam layers 50, including the cooling foam layer 52, the memory foam layer 54, and the open-celled foam layer 56, may be divided between the total thickness of the one or more foam layers 50. For example, an individual foam layer of the one or more foam layers 50 may have a thickness ranging from ½ inch to 1 inch or a thickness of ¾ inch. Further, in one or more embodiments, the one or more foam layers 50 extend substantially across the entire width and length of the mattress 10. However, it is noted that a particular layer of the one or more foam layers 50 may or may not be homogenous across the entire width and length of the mattress 10 and make have cuts, change in thickness, or change in composition in various regions.
In one or more embodiments, the cooling foam layer 52, may be formed from a gel memory foam which includes thermal gel or phase-changing gel. A gel memory foam is naturally cool to the touch. A phase-changing gel transitions from a solid to a liquid when the temperature of the phase-changing gel increases. Inclusion of thermal gel or phase-changing gel adsorbs heat reducing temperature rise of the mattress 10. Both of these gels are designed to draw heat away from the sleeper, resulting in a more comfortable surface temperature for the mattress 10.
In one or more embodiments, the memory foam layer 54 is a polyurethane foam. Further, in various embodiments, the memory foam 54 may have a density in the approximate range of 1.8 to 4.0 pounds per cubic foot, 2.0 to 4.0 pounds per cubic foot, 2.6 to 3.4 pounds per cubic foot, or approximately 3 pounds per cubic foot. In one or more embodiments, the memory foam layer 54 has an indentation load deflection ILD rating greater than 60.
In one or more embodiments, the open-cell foam layer 56 provides a ventilated foam layer which increases airflow through the layers of the mattress 10. Specifically, the open-cell structure may provided increased airflow and responds more rapidly to compression than traditional memory foam such as memory foam layer 54. Further, the open-cell foam layer 56 is a breathable which optimizes air flow and boosts temperature regulation. The open-cell foam 56 may be formed from the same materials as the memory foam layer 54 but include open-cells or air pockets that allow for ventilation and air flow throughout the mattress 10, which helps disperse heat.
In one or more embodiments, and with reference to
In accordance with various embodiments, one or both of the upper foam spacer layer 32 and the lower foam spacer layer 33 comprise a thickness of 0.25 inch to 2 inch, 0.5 inch to 2 inch, 0.25 inch to 1 inch, or 0.5 inch to 1 inch. Further, in one or more embodiments, the thickness of the upper foam spacer layer 32 and the lower foam spacer layer 33 may be constrained to be less than the thickness or height of the panel of micro-coils 30 such that the upper foam spacer layer 32 and the lower foam spacer layer 33 provide structures in the upper spring structure area 74 and the lower spring structure area 76 to account for the added height of the panel of micro-coils 30 in the upper central spring structure area 72. However, it is noted that the thickness of the upper foam spacer layer 32 and the lower foam spacer layer 33 does not need to match that of the panel of micro-coils 30 as the panel of micro-coils 30 extends into the pocket 28 of the quilted panel 12.
In the illustrated embodiment of
In one or more embodiments and as illustrated in
In one or more embodiments, and with reference to
In one or more embodiments and as illustrated in
In one or more embodiments and with reference to
The strengthening structure 80 includes the plurality of elongated support elements 84 located within said frame member 82 and received against the spring elements 40 encircled by the frame member 82. The elongated support elements 84, in one or more embodiments, may be a polyethylene coated 14 gauge wire, however, other gauges and bar-types may be suitably used for the purpose described herein. The elongated support elements 84 have opposing ends which connect to the frame member 82 at corners 86, such as by a weld or any other mounting means such as a ring or a wire wrap. Further, the elongated support elements 84 may be connected to the frame member 82 by hog rings, windings, or combinations thereof.
Although the quilted panel 12, the panel of micro-coils 30, and the one or more foam layers 50 are provided to both top and bottom sides of the mattress 10 in
Furthermore, although the mattress 10 is depicted in
In one or more embodiments and with reference to
It should be apparent to those skilled in the art that various modifications and variations may be made to the embodiments described within without departing from the spirit and scope of the claimed subject matter. Thus, it is intended that the specification cover the modifications and variations of the various embodiments described within provided such modification and variations come within the scope of the appended claims and their equivalents.
As used throughout, the singular forms “a,” “an” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to “a” component includes aspects having two or more such components, unless the context clearly indicates otherwise.
It should be understood that any two quantitative values assigned to a property or measurement may constitute a range of that property or measurement, and all combinations of ranges formed from all stated quantitative values of a given property or measurement are contemplated in this disclosure.
As used here and in the appended claims, the words “comprise,” “has,” and “include” and all grammatical variations thereof are each intended to have an open, non-limiting meaning that does not exclude additional elements or steps.
Having described the subject matter of the present disclosure in detail and by reference to specific embodiments thereof, it is noted that the various details disclosed within should not be taken to imply that these details relate to elements that are essential components of the various embodiments described within, even in cases where a particular element is illustrated in each of the drawings that accompany the present description. Further, it should be apparent that modifications and variations are possible without departing from the scope of the present disclosure, including, but not limited to, embodiments defined in the appended claims. More specifically, although some aspects of the present disclosure are identified as particularly advantageous, it is contemplated that the present disclosure is not necessarily limited to these aspects.
Claims
1. A mattress comprising:
- an innerspring assembly having a plurality of spring elements and defining a support surface, the spring elements arranged in rows defining upper, central, and lower spring structure areas;
- a panel of micro-coils positioned over the support surface in the central spring structure area; and
- a quilted panel having a ticking material, a backing material, and a support material having a degree of compression provided between the ticking and backing materials, the ticking material, the support material and the backing material all being quilted together by a stitching pattern providing an increased amount of stitching in a center section of the quilted panel aligned with the central spring structure area than adjacent head and foot sections of the quilted panel aligned with the upper and lower spring structure areas such that the support material pre-compresses in the center section thereby defining a pocket, wherein the quilted panel is provided over the panel of micro-coils such that the panel of micro-coils is provided in alignment with the pocket.
2. The mattress of claim 1, wherein the panel of micro-coils ranges in size from about ¼ to about ½ of a total area of the mattress.
3. The mattress of claim 1, wherein the innerspring assembly comprises a plurality of spring elements held in an array by interconnection with wires.
4. The mattress of claim 1, wherein the innerspring assembly comprises a plurality of spring elements held in an array by a fabric sleeve individually encasing each spring element.
5. The mattress of claim 1, wherein the mattress additionally comprises one or more foam layers positioned between the support surface and the quilted panel.
6. The mattress of claim 5, wherein the one or more foam layers positioned between the support surface and the quilted panel are formed from one or more of a cooling foam, an open-celled foam, and a memory foam.
7. The mattress of claim 1, wherein an upper foam spacer layer is provided over the support surface in the upper spring structure area adjacent the panel of micro-coils and a lower foam spacer layer is provided over the support surface in the lower spring structure area adjacent the panel of micro-coils.
8. The mattress of clam 7, wherein the upper foam spacer layer and the lower foam spacer layer comprise a thickness of 0.5 inch to 1 inch.
9. The mattress of claim 1, wherein the mattress further comprises a border frame comprising a metal rod defining an outer perimeter of the mattress.
10. The mattress of claim 1, wherein the mattress further comprises:
- a strengthening structure provided between the support surface and the panel of micro-coils in the central spring structure area, said strengthening structure having a frame member encircling a major portion of the central spring structure area, and a plurality of elongated support elements located within said frame member and received against the spring elements encircled by the frame member.
11. The mattress of claim 9, wherein the mattress further comprises:
- a strengthening structure provided between the support surface and the panel of micro-coils in the central spring structure area, said strengthening structure having a frame member encircling a major portion of the central spring structure area, and a plurality of elongated support elements located within said frame member and received against the spring elements encircled by the frame member.
12. The mattress of claim 1, wherein the mattress is hinged to allow folding of the mattress.
13. The mattress of claim 1, wherein the ticking material comprises an upholstery ticking.
14. The mattress of claim 1, wherein the backing material comprises a non-woven fabric.
15. The mattress of claim 1, wherein the support material comprises a polymer foam or fill layer.
16. The mattress of claim 1, wherein the stitching pattern is selected from a star pattern, a circle pattern, a swoop pattern, a ribbon pattern, a 213 pattern, and a 301 pattern.
17. The mattress of claim 6, wherein the mattress includes a memory foam layer.
18. The mattress of claim 17, wherein the memory foam layer is a polyurethane foam with a bulk density ranging from about 2.6 to about 4.0 pounds per cubic foot.
19. The mattress of claim 6, wherein the mattress includes a cooling foam layer.
20. The mattress of claim 6, wherein the mattress includes an open-celled foam layer.
Type: Application
Filed: Jan 24, 2024
Publication Date: Aug 8, 2024
Inventors: Philip Lane Carlitz (Glencoe, IL), Stuart Scott Carlitz (Yardley, PA)
Application Number: 18/421,456