The present invention relates to mattresses and, more particularly, to a mattress assembly having a foam body and segmented border wires.
Typically, a conventional coiled spring mattress has a supporting core including a rectangular array of coiled springs in side-by-side relation that are usually joined together by a clip or ferrule. Sometimes each coiled spring is encased in a fabric wrapping or pocket that may be sewn or glued to an adjoining spring wrapping. To provide some rigidity or stability along the top and bottom edge rims of the mattress, heavy gauge border wires are attached to the lateral edges of the outermost springs. Optionally extending between the border wires are a plurality of butterfly-shaped edge springs providing additional edge support and preventing sagging. This spring structure is encased in an outer upholstery-type fabric cover.
Usually disposed between the springs and top quilted ticking of the cover is a comfort layer that may include fiber padding, insulation, polyurethane foam, and other similar materials. These materials provide comfort for a person lying on the mattress by separating him from the springs, wires and connecting parts making up the supporting core. The mattress is often placed on a foundation, box spring or other support that raises it off the floor.
Also presently available are foam mattresses and air mattresses that do not employ springs. The supporting core can include an upper padded layer, a gel foam layer, a memory foam layer, and a high-density foam base. While foam mattresses and air mattresses are also encased in an outer cover, they do not employ border wires or edge support springs.
Mattresses come in a variety of standard sizes beginning with a twin bed having a size of 34 inches wide by 74 inches long up to a king size bed having a size 76 inches wide by 80 inches long. Mattresses may vary in thickness from about 6 inches to 18 inches or more. Depending on construction and the material used, smaller sizes may weigh less than 50 pounds, but larger sizes may weigh 100 pounds or more.
Mattresses, whether they be single, double, queen, or king size, are large and heavy and they are also flexible and floppy. They are manufactured and shipped as a single unit. Typically, they cannot be disassembled, folded, or otherwise compacted so they can be easily shipped or transported. A person often requires the help of an additional person to move a mattress and they will still have difficulty moving the mattress when navigating small doorways, narrow hallways, stairways, elevators, and the like. Since they will not fit into cars, they are often tied down onto the car's roof or require that a truck or trailer be employed.
A recent trend is selling foam mattresses rolled up in a shipping carton. Although this addresses some of the portability and handling challenges, these products lack a firm edge and the ability to customize the “his and hers” sleep surface.
In addition, mattresses are made to have a uniform firmness over their entire area. If two people are sleeping in a bed, they have to agree upon the type of mattress (coiled spring or foam) and the firmness of the mattress at the time of purchase.
The present invention is directed to overcoming one or more of the problems as set forth above.
It is one object of the present invention to provide a mattress assembly that can be easily moved.
It is another object of the present invention to provide a mattress assembly that can be customized.
A feature of the mattress assembly disclosed herein is that relatively short wire segments are joined together end-to-end by releasable connectors to form a single continuous border wire at the top and bottom borders of the mattress.
Another feature of the mattress assembly disclosed herein is that bands with through-holes are attached to the edges of the supporting core structure so that the border wire segments can be passed through the bands and thereby be attached to the mattress border.
In one use of the mattress assembly shown herein, two mattress assemblies can be joined together to form a larger mattress.
A further feature of the mattress assembly is that the segmented border wire can be used with foam cores or in combination with spring cores.
An additional feature is that edge support springs having mounting sleeves can be positioned between the top and bottom border wires segments during assembly.
In one aspect of the invention, only four border wires are employed around the mattress core each having a long straight length, a short straight length and joined by an intermediate 90° corner, with the short length having a length only long enough to extend into and fixed to the connector.
In another aspect of the invention, an elongate union is provided to join two mattresses together, the mattresses having opposed laterally extending slides and the union having opposed slots sized and shaped to mate with the slides and hold the mattresses in side-by-side relation.
In another aspect of the invention, a kit is provided that contains border wire segments, connectors, optional edge springs, and a mattress core or cores packaged in a compact shipping container that enables a user to join two mattresses together, for example, two foam mattresses or a foam mattress and a spring mattress.
The details of construction and operation of the invention are more fully described with reference to the accompanying drawings which form a part hereof and in which like reference numerals refer to like parts throughout.
In the drawings:
All figures are drawn for ease of explanation of the basic teachings of the present invention only; the extensions of the figures with respect to number, position, relationship, and dimensions of the parts to form the preferred embodiment will be explained or will be within the skill of the art after the following teachings of the present invention have been read and understood.
While the present invention is susceptible of embodiment in many different forms, there are shown in the drawings and will be described herein in detail specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the specific embodiments illustrated.
As seen in
The coiled springs 24 are arranged in a rectangular matrix with the upper spring turns forming the top of the core and the lower spring turns forming the bottom of the core. The outer rows of springs 24 define a length between the head end 29 and the foot end 30 and a width between the lateral peripheral sides 31. The depth of the mattress core is defined by the height of the coiled springs 24. The rims or edges of the mattress are defined by the top and bottom borders 33a and 33b where the top and bottom sides intersect the ends and sides.
Adjoining springs 24 may be independent of one another, or fixed together, or encased in fabric sleeves 34 as shown in
In
Each of the generally rectangularly-shaped border wires 25 and 26 is constructed from a plurality of separable short segments, collectively designated 38, made of heavy gauge wire. Each border wire segment 38 is preferably between 3 and 6 feet in length, but may be shorter or longer. Intermediate each pair of adjoining segments 38 is a releasable coupling connector, collectively designated 40, aligning and fixedly holding the connecting ends of the border segments in end-to-end relation. When all of the segments 38, which are made up of straight segments 38a and corner segments 38b bent at a 90° angle, are joined together, they form a single continuous border wire surrounding the upper and lower edges of the mattress. The corner segments have a curved or arcuate center portion subtending a 90° arc and straight end portions extending tangentially from each end of the center segment. Preferably, the straight end portions have a length only sufficient to be inserted into the end of a connector and fixed therein so as to minimize the width of the corner segment.
The releasable connectors 40 may take the form of locking ferrules, couplers, sleeves, loops, push-in fittings, coupling nuts, turnbuckles, or the like. It is understood that the connectors 40 couple the border wire segments 38 in end-to-end relation and should be releasable to allow for possible later disassembly of the border wire.
The vertically-oriented double butterfly edge springs 27, described in greater detail hereinafter, are located between the top and bottom border wires 25 and 26 to provide edge support.
To assemble the supporting structure and form a single unit, individual border wire segments 38 are inserted through the spring bands 37 and through the sleeves in the butterfly springs 27 with adjacent border wire segments 38 being joined by a connector 40. Preferably, the bands 37 have an opening sufficiently large relative to the border wire diameter to allow the border wire segments 38 to easily pass through, but are not so large as to allow the border wire segments to move away from a position adjoining the mattress borders.
The border wires 25 and 26 provides a firm, well-defined edge on the mattress border and the butterfly edge springs 27 provide edge stability to prevent sagging at the edge. The butterfly springs 27 are spaced around and outward of the sides of the mattress core and are vertically positioned intermediate the upper and lower border wires.
When the mattress structure has been assembled, it is encased in a fabric outer cover 22. The cover 22 is closed by suitable fastener means, such as a zipper or Velcro (not shown). The cover includes a padding layer and a finishing upholstery fabric layer.
Referring to
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Where a foam massage having long loops is joined to a spring mattress having narrow rings, the narrow rings may be positioned in the narrow gaps between the loop bands without folding them out of the way.
The construction of a butterfly edge support spring 27 is best seen in
In
In
In
An elongate connector, or union 110, which may be formed from extruded plastic, joins two slide strips together. The flat union 110 has a narrow center portion 111 with longitudinal slots, or grooves 112, defined along the two opposed peripheral sides having a size and configuration substantially similar to the head portion 107 of the strip. Each groove 112 is defined by an internal circular channel and an opening extending from the channel to the outer edge at the side of the strip.
As illustrated herein, the mattresses are manufactured with the elongate strips 102 in place, or added to the mattress at a later time. The head portion 107 of the strip has a circular profile and the grooves 112 of the union 110 have C-shaped profiles, such that when mated the head portions 107 are held within the grooves 112 with the flat neck portions 106 extending through the narrow groove openings. Connection is made by the user by sliding the head portions 107 into the ends of the groove channels until the union 110 is completely mated. It is understood that the parts may have a profile differing from the profiles shown provided they have configurations of a size and shape enabling a secured connection.
In
As best seen in
It is contemplated that various types of mattress cores may be joined together side-by-side with each user lying on his or her mattress type whether it have spring core (hard, soft or medium), a foam core, air core, water core, or some other type of support. This can be accomplished if the individual mattress cores are provided with edge bands as described above. When purchased separately, connecting parts, such as border wires, connectors, etc., need not be provided. However, to enable aftermarket connections to mattresses having bands installed, a kit may be provided. A kit might include a plurality of border wire segments, connectors for joining the segments together, and optionally butterfly edge springs. The kit enables two mattresses to be joined, for example, two foam mattresses, a foam mattress and a spring mattress, or other configurations.
While specific embodiments of the invention are illustrated herein, it is understood that the mattress assembly may be broken down into smaller or compactable components that are more easily transported. Also, two mattresses may be joined together with each having a different construction. For instance, the two mattresses may have a different firmness or they may be of different construction, one with a spring core and one with a foam core. A large mattress is thereby constructed for the specific desires and requirements of the individual end user or users.
From the foregoing, it will be observed that numerous variations and modifications may be effected without departing from the spirit and scope of the invention. It will also be observed that the various elements of the invention may be in any number of combinations, and that all of the combinations are not enumerated here. It will be understood that no limitation with respect to the specific apparatus illustrated herein is intended or should be inferred. While specific embodiments of the invention have been disclosed, one of ordinary skill in the art will recognize that one can modify the materials, dimensions and particulars of the embodiments without straying from the inventive concept.
Other aspects, objects and advantages of this invention can be obtained from a study of the drawings and the foregoing disclosure.
It should be understood that the terms “top,” “bottom,” “upper,” “lower,” “inner,” “outer,” “end,” “side,” “first,” “second,” “height,” “width,” “length,” and similar terms as used herein, have reference only to the structure shown in the drawings and are utilized only to facilitate describing the invention. The terms and expressions employed herein have been used as terms of description and not of limitation.
As used herein, the term “adjoin” shall mean “to be close to or in contact with”; the term “within” shall mean “to be partially or completely inside of”; the term “axial” refers to a direction that is substantially straight; the term “transverse” refers to a direction other than the axial direction (e.g., orthogonal or nonorthogonal).
This application is a division of and claims the benefit and priority from U.S. Nonprovisional application Ser. No. 15/420,672, filed Jan. 31, 2017, the disclosure of which is herein incorporated by reference in its entirety.
Number | Name | Date | Kind |
---|---|---|---|
1528066 | McIntire | Mar 1925 | A |
1889263 | Reed | Nov 1932 | A |
1933816 | Meutsch | Nov 1933 | A |
2065423 | Bronstein | Dec 1936 | A |
5289600 | Schermel | Mar 1994 | A |
5370373 | Bruner et al. | Dec 1994 | A |
5636396 | Workman et al. | Jun 1997 | A |
5924150 | Workman | Jul 1999 | A |
5970547 | Cavazos | Oct 1999 | A |
6233760 | Cavazos | May 2001 | B1 |
6842927 | England | Jan 2005 | B2 |
7017997 | Takezawa | Mar 2006 | B2 |
7287291 | Carlitz | Oct 2007 | B2 |
7917980 | Kluft | Apr 2011 | B2 |
8935819 | Hartley | Jan 2015 | B1 |
20040074005 | Kuchel | Apr 2004 | A1 |
20090013476 | Rinchetti | Jan 2009 | A1 |
20090038080 | Grigg | Feb 2009 | A1 |
20150296995 | Krim et al. | Oct 2015 | A1 |
Number | Date | Country |
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101000507 | Jul 2010 | KR |
Entry |
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KR101000507 English Translation (Year: 2010). |
Number | Date | Country | |
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Parent | 15420672 | Jan 2017 | US |
Child | 16570828 | US |