EP1500353B1 - Waterbed mattress - Google Patents
Waterbed mattress Download PDFInfo
- Publication number
- EP1500353B1 EP1500353B1 EP03447195A EP03447195A EP1500353B1 EP 1500353 B1 EP1500353 B1 EP 1500353B1 EP 03447195 A EP03447195 A EP 03447195A EP 03447195 A EP03447195 A EP 03447195A EP 1500353 B1 EP1500353 B1 EP 1500353B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mattress
- protrusions
- elasticity
- top wall
- waterbed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000013013 elastic material Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 10
- 239000002657 fibrous material Substances 0.000 claims description 3
- 230000017531 blood circulation Effects 0.000 description 2
- PICXIOQBANWBIZ-UHFFFAOYSA-N zinc;1-oxidopyridine-2-thione Chemical class [Zn+2].[O-]N1C=CC=CC1=S.[O-]N1C=CC=CC1=S PICXIOQBANWBIZ-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/08—Fluid mattresses or cushions
- A47C27/088—Fluid mattresses or cushions incorporating elastic bodies, e.g. foam
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/08—Fluid mattresses or cushions
- A47C27/085—Fluid mattresses or cushions of liquid type, e.g. filled with water or gel
Definitions
- the present invention relates to a waterbed mattress as described in the preamble of the first claim.
- Most waterbed mattress are made of an envelope having a top wall, a bottom wall and side walls formed of a polymeric material, for example polyvinylchloride or polyethylene, which enclose a central storage volume for receiving water.
- the thickness of a waterbed mattress is often about 21 cm. Usually, virtually the entire central volume is filled with water, the filling degree affecting the firmness of the mattress.
- a waterbed mattress is known, the envelope of which is made of a polymeric material.
- the top wall of the waterbed mattress a plurality of expandable folds are formed to allow for a stretching of the top wall when a person lies on it.
- the folds are oriented such that the stretch in width direction of the mattress is larger than the stretch in longitudinal direction.
- the spacing between the folds and the size of the folds is varied. This is done to provide optimum accommodation of heavier as well as of lighter parts of the human body. This is also done to optimise comfort when the mattress is occupied by a lighter and a heavier person.
- the folds are chosen such that the ratio of the surface area of the top wall when pulled taut, to the surface area when not charged, is between 1.03 and 1.3.
- the folds are spaced apart from each other by a distance L from about 0.25 to 4 inch.
- the ratio of the height of the folds to the distance between adjacent folds is between 1/16 and 1. It is alleged that the controlling of these parameters provides an improved lying comfort.
- the folds are arranged in a regular pattern and may have the shape of circular bumps or raised portions. Other suitable shapes are curled looped, swirled, curlique, quilted, box, rectangular and triangular.
- the waterbed mattress disclosed in US-A-5.210.892 presents the disadvantage that the lying comfort provided by it is still insufficient, in particular it does not provide optimum lying comfort to all body parts. There is thus a need to a waterbed mattress which provides for an optimum lying comfort for all body parts, in particular the wider head and shoulder portion, the heavier, but narrower back and hip portion and the leg portion.
- a further waterbed mattress is disclosed in DE 37 23 775.
- the waterbed mattress of the present invention comprises a top wall providing a laying surface, a bottom wall providing a support surface and a plurality of side walls, which together enclose a central storage volume for receiving the water.
- the top wall is made of an elastic material.
- a plurality of expandable folds is formed, such that several parts are created showing a different elasticity.
- the top wall is divided in at least three parts:
- the length of the head and shoulder portion of a human being occupying the first or head part of the mattress is mostly smaller than the length of the legs occupying the third or bottom part of the mattress, and as the length of the back and hip portion is usually in between these two, the length of the different parts of the mattress is chosen such that the first part has a length L1, the second part has a length L2 and the third part has a length L3, L1 being smaller than L2, which in turn is smaller than or equal to L3.
- the elasticity of the top wall or in other words, the ability of the top wall to stretch is in the mattress of this invention provided by the presence of a plurality of protrusions having an elongated, preferably a substantially oval shape.
- the head zone or first part of the top face of the mattress preferably comprises a plurality of first and second protrusions, the first protrusions extending in longitudinal direction of the mattress, the second protrusions extending in cross direction.
- the inventor has observed that the mutual co-operation of the longitudinally and transversally extending protrusions provide the desired elasticity to the mattress and maximum comfort for the head and shoulders.
- the third part comprises a plurality of third and fourth protrusions, the third protrusions having a larger length as compared the fourth protrusions and extending in width direction of the mattress, the fourth protrusions having a smaller length and preferably also a smaller width and extending in height direction of the mattress. In that way a reduced elasticity as compared to the first part of the mattress is obtained.
- the central volume of the waterbed mattress preferably comprises at least at the position of the second part of the top face, an elastic insert comprising a plurality of side by side disposed collapsible elastic bodies, which extend and are collapsible in height direction of the mattress.
- an upward pressure is generated at the position of back and hip part, as a consequence of which the hips receive an upward pressure and the vertebral column is supported so as to extend substantially horizontally in a sideways position of the human body.
- the waterbed mattress shown in figure 1 comprises an envelope of a polymeric material, having
- the waterbed mattress 1 shown in figure 2 comprises an elastic top wall 10.
- the elasticity is at least partly provided by the presence of a plurality of expandable folds in the top wall 10.
- the top wall 10 is divided in at least three parts 16, 17, 18 which run parallel to the transverse direction of the mattress, the three parts having a different elasticity.
- An optimum comfort is provided when the vertebral column, in each laying position of the body, takes a substantially horizontal orientation.
- a first part 16 of the top wall 10 corresponds to the surface part accommodating the head and shoulders of a person occupying the mattress.
- This first part 16 is made of a material having the highest elasticity as the shoulders are the part which extends the most from the body when occupying the mattress in a sideways position. In the sideways position, the pressure exerted by the shoulders per surface area unit will be higher as compared to the position when the body is laying on the back or front side. A larger stretching of the first part 16 will occur, as compared to the back lay position. Because of the elasticity, the top wall will adapt itself automatically to laying position and the weight of the body occupying it.
- the second part 17 corresponds to the surface part accommodating the back part of a person. As it is important that the vertebral column is supported in a substantially horizontal position when sleeping and supported over the entire length, this second part of the mattress is given a limited elasticity, which is substantially less than the elasticity of the first part 16.
- the third part 18 corresponds to the foot-end of the mattress which is provided for accommodating the hips and legs of a body.
- the elasticity of this part 18 is limited as compared to the elasticity of the first part 16. Some elasticity is required so as to keep the vertebral column in the correct, preferably substantially horizontal position, on the other hand the elasticity needs to be limited as the hip and leg part of the body have the largest weight.
- the first part 16 has an elasticity of between 5-40 % preferably 10-40 %, more preferably 15-30 %, most preferably 20-30 %, which means that the length and width of the first part of the top wall can be increased with a maximum of 40 % when occupied by a body.
- the third part 18 preferably has an elasticity of between 5-25 %, more preferably 10-20%.
- the first part 16 of the waterbed mattress has a length L1
- the second part 17 has a length L2
- the third part 18 has a length L3, L1 ⁇ L2 ⁇ L3.
- L1 mostly varies from 40-55 cm, preferably 45-50 cm
- L2 varies from 45-55 cm, preferably from 50-55 cm
- L3 varies from 50-100 cm.
- At least part of the elasticity of the top wall 10 is provided by the presence of a plurality of expandable folds 3-6 (see figure 4) in the top wall.
- Expandable folds can take any shape known to the man skilled in the art, but preferably have the shape of a rounded protrusion so as to provide uniform material strength along the folds combined with optimum elasticity.
- the protrusions 3-6 may however also have an irregular shape if this contributes to providing the envisaged elasticity to the surface part involved.
- the top wall 10 comprises a plurality of protrusions 3-6.
- the protrusions 3-6 have an elongated shape as this allows gradually increasing the elasticity from the edge of the protrusion towards the centre, which contributes to providing an optimum elasticity to the top wall 10.
- the elongated shape also allows achieving an overlapping elasticity between adjacent protrusions 3-6.
- the dimensions of the protrusions 3-6 are not critical to the invention and will generally adapted by the man skilled in the art taking account of the envisaged elasticity of the part involved.
- the shape of the protrusions 3-6 is substantially oval as this provides optimum elasticity.
- the protrusions may however have any other suitable elongated, rounded shape known to the man skilled in the art.
- the first part 16 comprises a plurality of first 3 and second 4 protrusions having approximately the same dimensions.
- the first protrusions 3 extend in longitudinal direction of the mattress 1
- the second protrusions 4 extend in a different direction, preferably in cross direction so as to provide uniform elasticity in longitudinal and transversal direction of the mattress 1.
- the shape and dimension of both the first and second protrusions 3, 4 may be adapted taking into account the envisaged elasticity of the first part 16.
- the third part or foot part 18 of the mattress comprises a plurality of third and fourth protrusions 5, 6, the third protrusions 5 extending in width direction of the mattress, the fourth protrusions 6 extending in longitudinal direction of the mattress 1, the third protrusions 5 having a larger length and width as compared to the fourth protrusions 6.
- two fourth protrusions 6 correspond to one single third protrusion 5. This arrangement assists in limiting the elasticity of the third part 16.
- the length of the first and second protrusions 3,4 will mostly vary from 30-40 mm, preferably 35-37 mm, at a width of 25-35 mm, preferably 30-33 mm.
- the length of the fourth protrusions 6 will mostly be from 25-35 m, preferably 30-33 mm, at a with of 10-20 mm, preferably 15-17 mm.
- the distance between adjacent protrusions 3-6 is not critical to the invention and will be adapted by the man skilled in the art depending on the required elasticity. In general however, the distance between adjacent protrusions will mostly be between 2-10 mm, preferably 5-7 mm.
- a further control of the elasticity of the top wall 10 can be achieved by providing in the central volume 2 of the mattress 1 a spring insert as is shown in figure 5, the presence of which adds to increasing control of the local elasticity and improving the support provided by that specific part of the mattress 1.
- a spring insert may be provided exclusively at the position of the second part 17 of the top wall 10, but also at the position of the first and third part 16, 18.
- the elasticity of the mattress may be adapted so as to allow accommodating bodies with large weight difference, or bodies preferring a different firmness of the mattress.
- the spring insert comprising a plurality of side by side disposed elastic bodies 7, 8, which are collapsible in height direction of the mattress 1.
- the collapsible elastic body 7, 8 comprises a coil of polymeric material enclosing a central space 21 and having a plurality of superposed interconnected bulges 9, at least one of the bulges comprising a vent 19 through which the water contained in the mattress can be displaced, in view of facilitating collapse and stretching of the bodies.
- the bodies 7, 8 should provide limited elasticity, most often the material thickness will be increased. Simultaneously however also the height of the coils may be increased.
- either one single type of elastic bodies 7, 8 may be mounted having the same height, width, material thickness and elasticity. It is however also possible to insert two or more types of elastic bodies of which these properties take different values, or to have a superposition of two or more different types as shown in figure 6a and 6b. Furthermore, also the diameter of the coils may be varied in view of varying the elasticity.
- the second part 17 of the mattress plastic coils may be provided having a material thickness of 0.04-0.08 inch, a height of 1.3-5 inch, an outer diameter of 3.05 inch, and a central hole with a diameter of 1.25 inch, the bulges having a height of 6.25 inch, the vent holes having a diameter of 0.25 inch which may however be smaller or larger.
- coils may be provided having a height of between 0.75-2.5 inch, the other parameters remaining the same.
- coils 7, 8 will be interconnected or received in corresponding recess in the internal volume 2 of the mattress to prevent them from floating.
- the waterbed mattress of this invention may further comprise one or more sheets or layers of a fibrous material 20, which further assist in controlling the elasticity.
- the fibrous material sheets 20 further function as a stabiliser to control water flow within the mattress.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
- The present invention relates to a waterbed mattress as described in the preamble of the first claim.
- Most waterbed mattress are made of an envelope having a top wall, a bottom wall and side walls formed of a polymeric material, for example polyvinylchloride or polyethylene, which enclose a central storage volume for receiving water. The thickness of a waterbed mattress is often about 21 cm. Mostly, virtually the entire central volume is filled with water, the filling degree affecting the firmness of the mattress.
- From US-A-5.210.892 a waterbed mattress is known, the envelope of which is made of a polymeric material. In the top wall of the waterbed mattress a plurality of expandable folds are formed to allow for a stretching of the top wall when a person lies on it. The folds are oriented such that the stretch in width direction of the mattress is larger than the stretch in longitudinal direction. To vary the amount of stretch provided by the folds in different regions of the top wall, the spacing between the folds and the size of the folds is varied. This is done to provide optimum accommodation of heavier as well as of lighter parts of the human body. This is also done to optimise comfort when the mattress is occupied by a lighter and a heavier person.
- In particular in US-A-5.210.892 the folds are chosen such that the ratio of the surface area of the top wall when pulled taut, to the surface area when not charged, is between 1.03 and 1.3. The folds are spaced apart from each other by a distance L from about 0.25 to 4 inch. The ratio of the height of the folds to the distance between adjacent folds is between 1/16 and 1. It is alleged that the controlling of these parameters provides an improved lying comfort. According to an embodiment of US-A-5.210.892, the folds are arranged in a regular pattern and may have the shape of circular bumps or raised portions. Other suitable shapes are curled looped, swirled, curlique, quilted, box, rectangular and triangular.
- However, the waterbed mattress disclosed in US-A-5.210.892 presents the disadvantage that the lying comfort provided by it is still insufficient, in particular it does not provide optimum lying comfort to all body parts. There is thus a need to a waterbed mattress which provides for an optimum lying comfort for all body parts, in particular the wider head and shoulder portion, the heavier, but narrower back and hip portion and the leg portion.
- A further waterbed mattress is disclosed in DE 37 23 775.
- It is therefore the object of this invention to provide a waterbed mattress with a still improved lying comfort.
- This is achieved according to the present invention with the characterising features of the first claim.
- The waterbed mattress of the present invention comprises a top wall providing a laying surface, a bottom wall providing a support surface and a plurality of side walls, which together enclose a central storage volume for receiving the water.
- The top wall is made of an elastic material. In the top wall a plurality of expandable folds is formed, such that several parts are created showing a different elasticity. The top wall is divided in at least three parts:
- 1. the first part (16) corresponding to a surface part having an elasticity of between 5 and 40 % for receiving the head and shoulder portion of a person occupying the mattress. The shoulder portion is given the highest elasticity to provide a maximum comfort when laying sideways. As the shoulders mostly form the widest part of the human body, the shoulders should be capable of being in a countersunk position if a virtually straight position of the vertebral column is aimed at.
- 2. the second part (17) being provided for receiving the back zone,
- 3. the third part (18) corresponding to a surface part for receiving the hip or bottom and leg zone having an elasticity of between 5-25 %. At this position an intermediate elasticity is desired as this forms the heaviest part of the body.
- As the length of the head and shoulder portion of a human being occupying the first or head part of the mattress is mostly smaller than the length of the legs occupying the third or bottom part of the mattress, and as the length of the back and hip portion is usually in between these two, the length of the different parts of the mattress is chosen such that the first part has a length L1, the second part has a length L2 and the third part has a length L3, L1 being smaller than L2, which in turn is smaller than or equal to L3.
- The elasticity of the top wall, or in other words, the ability of the top wall to stretch is in the mattress of this invention provided by the presence of a plurality of protrusions having an elongated, preferably a substantially oval shape.
- To provide optimum contact pressure towards a body occupying the mattress, the head zone or first part of the top face of the mattress preferably comprises a plurality of first and second protrusions, the first protrusions extending in longitudinal direction of the mattress, the second protrusions extending in cross direction. The inventor has observed that the mutual co-operation of the longitudinally and transversally extending protrusions provide the desired elasticity to the mattress and maximum comfort for the head and shoulders.
- The third part comprises a plurality of third and fourth protrusions, the third protrusions having a larger length as compared the fourth protrusions and extending in width direction of the mattress, the fourth protrusions having a smaller length and preferably also a smaller width and extending in height direction of the mattress. In that way a reduced elasticity as compared to the first part of the mattress is obtained.
- To provide optimum body support, the central volume of the waterbed mattress preferably comprises at least at the position of the second part of the top face, an elastic insert comprising a plurality of side by side disposed collapsible elastic bodies, which extend and are collapsible in height direction of the mattress. By the presence of the collapsible bodies, an upward pressure is generated at the position of back and hip part, as a consequence of which the hips receive an upward pressure and the vertebral column is supported so as to extend substantially horizontally in a sideways position of the human body.
- The invention is further elucidated in the appending figures and description of the figures.
- Figure 1 is a perspective of a waterbed mattress in general.
- Figure 2 is a perspective view of a preferred embodiment of the waterbed mattress of this invention, one of the side walls being left out.
- Figure 3 is a perspective view of another preferred embodiment of the waterbed mattress of this invention, one of the side walls again being left out.
- Figure 4 is a view to the top wall of the waterbed mattress of the invention.
- Figure 5a and 5b show a detailed view to a part of the top wall of the waterbed mattress of this invention.
- Figures 6a and 6b show a detail of a spring insert for the waterbed mattress of this invention.
- The waterbed mattress shown in figure 1 comprises an envelope of a polymeric material, having
- a
top wall 10 providing a sleeping or laying surface, - a
bottom wall 11 providing a support surface to the mattress - and four side walls 12-15
- The
waterbed mattress 1 shown in figure 2 comprises anelastic top wall 10. The elasticity is at least partly provided by the presence of a plurality of expandable folds in thetop wall 10. - As can be seen from figure 1, the
top wall 10 is divided in at least threeparts - A
first part 16 of thetop wall 10 corresponds to the surface part accommodating the head and shoulders of a person occupying the mattress. Thisfirst part 16 is made of a material having the highest elasticity as the shoulders are the part which extends the most from the body when occupying the mattress in a sideways position. In the sideways position, the pressure exerted by the shoulders per surface area unit will be higher as compared to the position when the body is laying on the back or front side. A larger stretching of thefirst part 16 will occur, as compared to the back lay position. Because of the elasticity, the top wall will adapt itself automatically to laying position and the weight of the body occupying it. - The
second part 17 corresponds to the surface part accommodating the back part of a person. As it is important that the vertebral column is supported in a substantially horizontal position when sleeping and supported over the entire length, this second part of the mattress is given a limited elasticity, which is substantially less than the elasticity of thefirst part 16. - The
third part 18 corresponds to the foot-end of the mattress which is provided for accommodating the hips and legs of a body. The elasticity of thispart 18 is limited as compared to the elasticity of thefirst part 16. Some elasticity is required so as to keep the vertebral column in the correct, preferably substantially horizontal position, on the other hand the elasticity needs to be limited as the hip and leg part of the body have the largest weight. - Preferably, the
first part 16 has an elasticity of between 5-40 % preferably 10-40 %, more preferably 15-30 %, most preferably 20-30 %, which means that the length and width of the first part of the top wall can be increased with a maximum of 40 % when occupied by a body. The third part 18preferably has an elasticity of between 5-25 %, more preferably 10-20%. - The
first part 16 of the waterbed mattress has a length L1, thesecond part 17 has a length L2 and thethird part 18 has a length L3, L1 < L2 ≤ L3. In a practical situation L1 mostly varies from 40-55 cm, preferably 45-50 cm, L2 varies from 45-55 cm, preferably from 50-55 cm, and L3 varies from 50-100 cm. - At least part of the elasticity of the
top wall 10 is provided by the presence of a plurality of expandable folds 3-6 (see figure 4) in the top wall. Expandable folds can take any shape known to the man skilled in the art, but preferably have the shape of a rounded protrusion so as to provide uniform material strength along the folds combined with optimum elasticity. The protrusions 3-6 may however also have an irregular shape if this contributes to providing the envisaged elasticity to the surface part involved. However, to achieve optimum support for a body combined with a nice aesthetic effect thetop wall 10 comprises a plurality of protrusions 3-6. - It is preferred that the protrusions 3-6 have an elongated shape as this allows gradually increasing the elasticity from the edge of the protrusion towards the centre, which contributes to providing an optimum elasticity to the
top wall 10. The elongated shape also allows achieving an overlapping elasticity between adjacent protrusions 3-6. The dimensions of the protrusions 3-6are not critical to the invention and will generally adapted by the man skilled in the art taking account of the envisaged elasticity of the part involved. - As can be seen from figure 4, it is preferred that the shape of the protrusions 3-6 is substantially oval as this provides optimum elasticity. The protrusions may however have any other suitable elongated, rounded shape known to the man skilled in the art.
- To provide a different elasticity in the first or
head part 16 and the third orfoot part 18 of the mattress, thefirst part 16 comprises a plurality of first 3 and second 4 protrusions having approximately the same dimensions. Thefirst protrusions 3 extend in longitudinal direction of themattress 1, thesecond protrusions 4 extend in a different direction, preferably in cross direction so as to provide uniform elasticity in longitudinal and transversal direction of themattress 1. However, the shape and dimension of both the first andsecond protrusions first part 16. - The third part or
foot part 18 of the mattress comprises a plurality of third andfourth protrusions third protrusions 5 extending in width direction of the mattress, thefourth protrusions 6 extending in longitudinal direction of themattress 1, thethird protrusions 5 having a larger length and width as compared to thefourth protrusions 6. In the embodiment shown in figure 4 twofourth protrusions 6 correspond to one singlethird protrusion 5. This arrangement assists in limiting the elasticity of thethird part 16. - In practise the length of the first and
second protrusions fourth protrusions 6 will mostly be from 25-35 m, preferably 30-33 mm, at a with of 10-20 mm, preferably 15-17 mm. - The distance between adjacent protrusions 3-6 is not critical to the invention and will be adapted by the man skilled in the art depending on the required elasticity. In general however, the distance between adjacent protrusions will mostly be between 2-10 mm, preferably 5-7 mm.
- A further control of the elasticity of the
top wall 10 can be achieved by providing in thecentral volume 2 of the mattress 1 a spring insert as is shown in figure 5, the presence of which adds to increasing control of the local elasticity and improving the support provided by that specific part of themattress 1. A spring insert may be provided exclusively at the position of thesecond part 17 of thetop wall 10, but also at the position of the first andthird part - As can be seen from figure 3, the spring insert comprising a plurality of side by side disposed
elastic bodies mattress 1. In particular the collapsibleelastic body central space 21 and having a plurality of superposedinterconnected bulges 9, at least one of the bulges comprising avent 19 through which the water contained in the mattress can be displaced, in view of facilitating collapse and stretching of the bodies. In case thebodies - Within the part of the
mattress 1 corresponding to the first, second orthird part top wall 10, either one single type ofelastic bodies - For example, in order to provide maximum support in the hip zone, in the
second part 17 of the mattress plastic coils may be provided having a material thickness of 0.04-0.08 inch, a height of 1.3-5 inch, an outer diameter of 3.05 inch, and a central hole with a diameter of 1.25 inch, the bulges having a height of 6.25 inch, the vent holes having a diameter of 0.25 inch which may however be smaller or larger. In thefirst part 16 for example coils may be provided having a height of between 0.75-2.5 inch, the other parameters remaining the same. - Usually the
coils internal volume 2 of the mattress to prevent them from floating. - The waterbed mattress of this invention may further comprise one or more sheets or layers of a
fibrous material 20, which further assist in controlling the elasticity. Thefibrous material sheets 20 further function as a stabiliser to control water flow within the mattress.
Claims (9)
- A waterbed mattress (1) comprising a top wall (10) providing a laying surface, a bottom wall (11) providing a support surface and a plurality of side walls (12, 13, 14, 15), which together enclose a central storage volume (2) for receiving water, the top wall (10) being made of an elastic material, the top wall (10) in width direction thereof being divided in at least three parts (16, 17, 18) in cross direction of the mattress (1), a first part (16) for receiving the head and shoulder portion of a person occupying the mattress, a third part (18) for receiving the leg zone, a second part (17) lying between the first (16) and the third (18) part of the mattress (1) for receiving the back and hip zone, the three parts (16, 17, 18) having a different elasticity so that the first (16) and the third (18) part are more elastic than the second (17) part, the top wall (10) comprising a plurality of protrusions (3, 4, 5, 6) having an elongated shape, characterised in that, the first part (16) corresponds to a surface part having an elasticity of between 5-40 %, preferably 15-30 %, the third part (18) having an elasticity of between 5-25 %, preferably 10-20 %, the elasticity being given as a difference between the width of the mattress in the stretched and the non-stretched condition divided by the width of the mattress in the non-stretched condition, in that the first (16) and the third part (18) comprise a plurality of pairs of protrusions (3, 4, 5, 6), one protrusion (3,6) of the pair of protrusions (3, 4, 5, 6) extending in longitudinal direction of the mattress (1), the other protrusion of the pair of protrusions (3, 4, 5, 6) extending in cross direction (4, 5) and in that the elasticity of each of the first (16), second (17) and third (18) part is selected such that an upward pressure exerted by the waterbed mattress to a person occupying the mattress is between 10-24 mm Hg.
- A waterbed mattress as claimed in claim 1, characterised in that the first part has a length L1, the second part has a length L2 and the third part has a length L3, L1 < L2 ≤ L3.
- A waterbed mattress as claimed in claim 1 or 2, characterised in that the protrusions (3,4,5,6) are substantially oval.
- A waterbed mattress as claimed in any one of claims 1 - 3, characterised in that the first part (16) comprises a plurality of first and second protrusions (3,4) having approximately the same dimensions, the first protrusions (3) extending in longitudinal direction of the mattress, the second protrusions (4) extending in cross direction.
- A waterbed mattress as claimed in any one of claims 1 - 4, characterised in that the third part (18) comprises a plurality of third and fourth protrusions (5,6) the third protrusions (5) extending in width direction of the mattress (1), the fourth protrusions (6) extending in longitudinal direction of the mattress (1), the third protrusions (5) having a larger length and width as compared to the fourth protrusions (6).
- A waterbed mattress as claimed in any one of claims 1 - 5, characterised in that the central storage volume (2) comprises at least at the position of the second part (17) of the top wall (10) an insert comprising a plurality of side by side disposed elastic bodies (7, 8), which are reversibly collapsible in height direction of the mattress (1).
- A waterbed mattress as claimed in anyone of claims 1 - 6, characterised in that the central storage volume (2) comprises at the position of the third part (18) of the top wall (10) a plurality of side by side disposed elastic bodies (7,8), which are reversibly collapsible in height direction of the mattress.
- A waterbed mattress as claimed in claim 7, characterised in that the collapsible elastic body (7, 8) comprises a coil of polymeric material having a plurality of superposed interconnected bulges (9) enclosing a central volume (21), at least one of the bulges comprising a vent (19).
- A waterbed mattress as claimed in claim 8, characterised in that in the central volume (2) one or more sheets of a fibrous material (20) are provided, on top of or below the coils (7, 8) or both.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03447195A EP1500353B1 (en) | 2003-07-23 | 2003-07-23 | Waterbed mattress |
AT03447195T ATE355779T1 (en) | 2003-07-23 | 2003-07-23 | WATERBED MATTRESS |
DE60312314T DE60312314D1 (en) | 2003-07-23 | 2003-07-23 | Waterbed mattress |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03447195A EP1500353B1 (en) | 2003-07-23 | 2003-07-23 | Waterbed mattress |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1500353A1 EP1500353A1 (en) | 2005-01-26 |
EP1500353B1 true EP1500353B1 (en) | 2007-03-07 |
Family
ID=33484105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03447195A Expired - Lifetime EP1500353B1 (en) | 2003-07-23 | 2003-07-23 | Waterbed mattress |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1500353B1 (en) |
AT (1) | ATE355779T1 (en) |
DE (1) | DE60312314D1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1016076A3 (en) * | 2004-06-16 | 2006-02-07 | Sleeping Soc | WATERBED MATTRESS. |
GB201017183D0 (en) | 2010-10-12 | 2010-11-24 | Katan Joseph M | Body support platform |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5195196A (en) * | 1984-03-19 | 1993-03-23 | Land And Sky Manufacturing, Inc. | Sculptured, stretchable waterbed mattress with aesthetic appearance |
NO872745L (en) * | 1986-08-19 | 1988-02-22 | Lynn Duane Larson | COVERAGE FOR WATERSBED MATTRESS. |
US5159725A (en) * | 1992-03-11 | 1992-11-03 | Larson Lynn D | Waterbed mattress with bellows spring insert |
US5253377A (en) * | 1992-03-11 | 1993-10-19 | Larson Lynn D | Waterbed mattress with bellows spring insert |
US5513401A (en) * | 1993-01-15 | 1996-05-07 | France Bed Co., Ltd. | Watermattress apparatus |
-
2003
- 2003-07-23 DE DE60312314T patent/DE60312314D1/en not_active Expired - Lifetime
- 2003-07-23 EP EP03447195A patent/EP1500353B1/en not_active Expired - Lifetime
- 2003-07-23 AT AT03447195T patent/ATE355779T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE355779T1 (en) | 2007-03-15 |
EP1500353A1 (en) | 2005-01-26 |
DE60312314D1 (en) | 2007-04-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0624071B1 (en) | Adjustable cervical pillow | |
US9113732B2 (en) | System and method for an adjustable cervical contour pillow | |
US6131219A (en) | Inflatable pillow | |
US5469590A (en) | Mattress with compressible support members | |
US4592589A (en) | Inflatable-inflated cushion for seat | |
US8695134B2 (en) | Sleep system | |
US11596247B2 (en) | Pillow for healthy ergonomic positioning of the neck and spine | |
US20210127866A1 (en) | Pillow apparatus | |
EP0244212A2 (en) | Air mattress | |
EP3402451B1 (en) | Contoured device for anatomical traction or correction of the spine | |
KR102084281B1 (en) | Therapeutic pillow | |
WO1999029213A1 (en) | Mattress structure | |
WO2010011401A1 (en) | Molded seat cushion with internal shape matching ischial structures | |
US20220016487A1 (en) | Balance training device | |
WO2007111064A1 (en) | Pillow | |
EP1500353B1 (en) | Waterbed mattress | |
US20230020270A1 (en) | Balance training device | |
US5195196A (en) | Sculptured, stretchable waterbed mattress with aesthetic appearance | |
JP2000060704A (en) | Pillow | |
JP2536042Y2 (en) | Air pillow with adjustable shape and height | |
JPH0620412B2 (en) | Snoring pillow | |
KR102548974B1 (en) | Pillow | |
KR20110002819A (en) | Equipped with height-adjustable pillow core | |
KR20150007398A (en) | Fuctional a Pillow | |
JP7482485B2 (en) | pillow |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
AKX | Designation fees paid | ||
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
17P | Request for examination filed |
Effective date: 20050915 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THE SLEEPING SOCIETY |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 Ref country code: CH Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 Ref country code: LI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 60312314 Country of ref document: DE Date of ref document: 20070419 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070607 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070618 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070807 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
EN | Fr: translation not filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070609 |
|
26N | No opposition filed |
Effective date: 20071210 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20070723 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070731 Ref country code: FR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20071026 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070608 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070723 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070723 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20070723 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070607 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070607 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070908 Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20070307 |