AU2017235918A1

AU2017235918A1 - Mattress Construction

Info

Publication number: AU2017235918A1
Application number: AU2017235918A
Authority: AU
Inventors: Robert Bruce Simon
Original assignee: Serenity Bedding Pty Ltd
Current assignee: Serenity Bedding Pty Ltd
Priority date: 2012-08-03
Filing date: 2017-09-26
Publication date: 2017-10-19
Also published as: AU2012211337A1

Abstract

A coil spring mattress has spring pockets arranged in bands transversely across the mattress so that a pair of intermediate lumber bands separated by a central hip band offer increased spring resistance over the spring pockets in the central hip band. The perimeter of the mattress has spring pockets which are firmer than the pockets of the lumbar band. The arrangement of bands is symmetrical about the central transverse axis so that the sleeper can lie on the bed in either direction and experience the same support. Figure 1 4 FIRMER 20 Figure 1

Description

Mattress Construction

TECHNICAL FIELD

This invention concerns mattress construction.

BACKGROUND

Coil springs enclosed in spring pockets which are interconnected are used in known mattress construction. If the springs are of uniform compressibility, the sleeper experiences the same comfort or discomfort where ever he/she is on the mattress. Experimentation with the design and build of mattresses suggests that sleepers are always hopeful that mattresses are capable of improving the support they give and the comfort they offer. While mattresses may not be able to cure physical health deficiencies in sleepers they can if unsuitable worsen a sleeper’s physical condition.

SUMMARY OF INVENTION

The apparatus aspect of the invention provides a coil spring mattress having spring pockets arranged in bands transversely across the mattress comprising a pair of intermediate lumbar bands separated by a central hip band, both lumbar bands being of equal width and narrower than the central band and having firmer spring resistance than the central hip band. A torso band lies between one lumbar band and the end of the mattress, and another like torso band lies between the other lumbar band and the opposite end of the mattress.

By arranging the bands symmetrically about the central transverse axis of the mattress, the sleeper lies on the same bands which ever way the mattress lies on the bed.

The mattress perimeter may be defined by spring pockets extending along both sides and both ends. The bands extend across the bed from side to side, that is from the spring pockets down one side to the spring pockets down the opposite side.

The width of the lumbar bands may be 150-160 mm.

The width of the hip band may be 300-320 mm. The torso bands may be about 600 mm wide. The perimeter band may be 70-80 mm across.

The spring wire of the perimeter coil springs may be 1.3 mm in diameter.

The spring wire of the coil springs in the hip band may be 1 mm in diameter.

The spring wire of the coil springs in the lumbar band may be 1.1 mm in diameter. DESCRIPTION OF DRAWINGS

In order that the present invention might be more fully understood, embodiments of the present invention will be described, by way of example only, with reference to the accompanying drawings, in which:

Figure 1 is a diagrammatic plan view of an embodiment of the present invention in the form of a mattress, shown with part of the ticking removed to show the disposition of the various bands; and

Figure 2 is a rough schematic diagram showing a side view of how a user can lie on an embodiment of the mattress with the user’s head at either end of the mattress.

DESCRIPTION OF EMBODIMENTS

In the description of this embodiment, only the spring pocket distribution is described, the additional construction of the mattress being known.

Referring to the drawing, in Figure 2 the perimeter 2 consists of two continuous rows 4, 6 of spring pockets which form a ring around the mattress. The perimeter springs are made of 1.3 mm wire. The hip band 8 is composed of eight rows of spring pockets arranged symmetrically about the mid axis 10 of the bid. These form the rectangular mid zone of the bed. The springs in this band are 1mm in thickness and 40mm in diameter.

On each side of the hip band is a lumbar band 12, 14, each composed of four rows of spring pockets containing springs made of 1.1 mm wire.

The bands 16, 18, which extend from the lumbar bands to the perimeter 2 at the ends of the bed, are the most extensive of all the bands because they support the torso and legs of the sleeper. There are 16 rows of pockets and these have springs which match those in the hip band.

Figure 2 is a rough schematic diagram that shows how a person may lie on an embodiment of the mattress, with the head at either end of the mattress, whichever way the mattress lies.

Figure 2 schematically shows that, whichever way a user lies with the head at either end of the mattress, the user’s hips generally will be found around the centre 20 of the embodiment of the mattress. Hence, accordingly, the soft springs of the hip band 30 are able to support the user’s hips or buttocks, depending on whether the user rests on his back or on his side.

In the embodiment, the width of the hip band is 300-320mm, and the hip band provides an area on which the user’s hip area is able to rest.

In Figure 2, on either side of the hip band 30 are the said lumbar bands. As shown in Figure 2, when a person lies on the bed, these lumbar bands correspond in position to the person’s lumbar area, whether the person lies with the head at one end or the other end of the embodiment of the mattress.

In most people, variance in height of each person derives mostly from variation in the length of legs and in the neck. For example, when a range of people, of differing height, sit on the same chairs, there is actually very little variation in the height of their shoulders when the people are seated in that manner. Hence, the positioning of the hip band and the two lumbar bands, having the measurements of the embodiment, is able to cater for the vast majority of adult users. In the embodiment, an advantage of the said measurement ranges of the hip band and the two lumbar bands is that the arrangement is able to cater for the vast majority of adult users.

The firmer spring resistance of the lumbar bands, positioned on either side of the soft hip band, is able to provide firmer support for the user’s lumbar area (the small of the back). The person’s buttocks or hips would rest on the soft central hip band.

In an exemplary embodiment, the diameter of the coil springs is smaller than customary, namely 40 mm. This gives a greater spring density and allows an improved sensation of support to a sleeper. The hip band has soft springs, the lumbar bands have firmer springs and the perimeter springs are the firmest. With this spring diameter, the lumbar bands each have four side-by-side rows of spring pockets, the hip band has eight rows and the perimeter is two rows across. The difference in firmness is achieved by using different spring wire thickness. The soft springs are made of 1 mm wire, the firmer springs are made of 1.1 mm wire and the firmest springs are made of 1.3 mm wire. Arranging the firmest springs at the perimeter allows the sleeper to sit on the side of the bed without collapsing the edge of the mattress.

Advantageous Effects of Embodiment: 1. Superior spring distribution. 2. Improved zoning in that it does not matter which end of the mattress supports the pillow, the support the sleeper experiences is the same.

It is to be understood that the word “comprising” as used throughout the specification is to be interpreted in its inclusive form, ie. use of the word “comprising” does not exclude the addition of other elements. That is, the word “comprise” and its derivatives will be taken to indicate the inclusion of not only the listed components, steps or features that it directly references, but also other components, steps or features not specifically listed, unless the contrary is expressly stated or the context requires otherwise.

It is to be understood that various modifications of and/or additions to the invention can be made without departing from the basic nature of the invention. These modifications and/or additions are therefore considered to fall within the scope of the invention. It will be appreciated by those skilled in the art that many modifications and variations may be made to the embodiments described herein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A coil spring mattress having a coil spring mattress having spring pockets arranged in bands transversely across the mattress comprising a pair of intermediate lumbar bands separated by a central hip band, both lumbar bands being of equal width and narrower than the central band and having firmer spring resistance than the central hip band.

2. A coil spring mattress as claimed in Claim 1, wherein a torso band lies between one lumbar band and the end of the mattress and another like torso band lies between the other lumbar band and the opposite end of the mattress.

3. A coil spring mattress as claimed in Claim 1 or 2, wherein the bands are arranged symmetrically about the central transverse axis of the mattress so that the sleeper lies on the same mixture of bands whichever way the mattress lies.

4. A coil spring mattress as claimed in any one of Claims 1 to 3, wherein the perimeter of the mattress is defined by a continuous row of spring pockets extending around both sides and both ends of firmer spring resistance than the lumbar bands.

5. A coil spring mattress as claimed in any one of Claims 1 to 4, wherein the bands extend transversely across the bed from one side to the opposite side.

6. A coil spring mattress as claimed in any one of Claims 2 to 5, wherein the width of the lumber bands is 150-160mm.

7. A coil spring mattress as claimed in any one of Claims 1 to 6, wherein the width of the hip band is 300-320 mm.

8. A coil spring mattress as claimed in any one of Claims 2 to 7, wherein the width of the torso bands is 600 mm.

9. A coil spring mattress as claimed in any one of Claims 4 to 8, wherein the width of the perimeter (band) is 70-80 mm.

10. A coil spring mattress as claimed in any one of Claims 1 to 9, wherein the spring wire of the perimeter coil springs is 1.3 mm in diameter.

11. A coil spring mattress as claimed in any one of Claims 1 to 9, wherein the spring wire of the coil springs in the hip band is 1 mm in diameter.

12. A coil spring mattress as claimed in any one of Claims 1 to 9, wherein the spring wire of the coil springs in the lumbar band is 1.1 mm in diameter.