EP2957191B1 - A top mattress - Google Patents

A top mattress Download PDF

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Publication number
EP2957191B1
EP2957191B1 EP15172536.3A EP15172536A EP2957191B1 EP 2957191 B1 EP2957191 B1 EP 2957191B1 EP 15172536 A EP15172536 A EP 15172536A EP 2957191 B1 EP2957191 B1 EP 2957191B1
Authority
EP
European Patent Office
Prior art keywords
mattress
air
suction device
temperature
layer
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.)
Active
Application number
EP15172536.3A
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German (de)
English (en)
French (fr)
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EP2957191A1 (en
Inventor
Stefan Larsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Publication date
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Priority to PL15172536T priority Critical patent/PL2957191T3/pl
Publication of EP2957191A1 publication Critical patent/EP2957191A1/en
Application granted granted Critical
Publication of EP2957191B1 publication Critical patent/EP2957191B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/04—Devices for ventilating, cooling or heating
    • A47C21/042—Devices for ventilating, cooling or heating for ventilating or cooling
    • A47C21/044—Devices for ventilating, cooling or heating for ventilating or cooling with active means, e.g. by using air blowers or liquid pumps

Definitions

  • the present invention relates to a top mattress configured to provide upper support surfaces through an upper limitation thereof for and carry a person lying on the mattress, in which at least parts of said upper limitation forming said support surfaces are designed to have a good ability to let air through.
  • the humid environment formed next to said upper support surfaces of the mattress means that depositions of cuticle from the person lying on the mattress gets moist and soft and perfectly suited as nutrition for mites, which may live and propagate in this environment.
  • the excrement of such mites are strongly allergenic.
  • Another serious problem is that when persons have to stay on said mattress for a longer time since they are bound to a bed for different reasons, such as a temporarily or a lengthy disease, unpleasant odours then usually occur from the space above the mattress.
  • a bed solving the above problems with heat and moisture is known through US 2003/019044 A1 .
  • bed air is drawn more or less vertically through the mattress into a rectangular opening defined by through-holes in the bed.
  • the suction device is located in a large box at the bottom of the bed. This means that the air is drawn under a blanket possibly used by a person lying on the mattress of the bed and further down under the body and through the mattress into the bed, which tends to make the feet and the calves of a person cold, which is experienced as unpleasant.
  • the object of the present invention is to provide a top mattress solving the problem mentioned above of a bed defined in US 2003/019044 A1 .
  • This object is according to the invention obtained by providing a top mattress with the features listed in claim 1.
  • air will be drawn into the mattress in said restricted region near the trunk and the head of a person lying on the mattress and then be transported between the first air-tight layer and the lower second air-tight layer closely under the contact surface of the body with the mattress to the foot end of the mattress and down into the suction device under the feet of a person lying on the mattress.
  • the mattress and the upper surface of a bed onto which the mattress may be placed will be heated in the foot end of the mattress by the fact that heated air from the trunk and the head of the person will pass just below said contact surface and down into the suction device below the feet of the person. Accordingly, the unpleasant feeling of cold feet and calves will be eliminated while taking care of heat and moisture in the same appropriate way as achieved by the said bed.
  • the mattress comprises an arrangement configured to control the power supplied to said suction device.
  • Such an arrangement makes it possible to adapt the operation of a suction device to various parameters, such as the room temperature in the free space around the mattress, the person using the mattress etc.
  • said suction device is configured to assume a state of low power operation or a state of active operation.
  • the state of low power operation may be assumed when there is no need for lowering the temperature in the region of said upper support surfaces of the mattress but only a wish to keep these regions dry, and for instance when no person is lying on the mattress.
  • Said suction device is according to another embodiment to the invention configured to run continuously. This means that said upper support surfaces and the surrounding thereof may be continuously kept dry while for instance being in said state of low power operation when no person is resting on the mattress for saving energy and be kept dry and at a desired temperature when a person is resting on the mattress.
  • the mattress comprises a first temperature sensor configured to sense the temperature of air sucked through the mattress by said suction device and a second temperature sensor configured to sense the room temperature in a free space surrounding the mattress, and said arrangement is configured to control said suction device depending upon information from said first and second sensors. This means that the suction device may be controlled to obtain an optimum relationship between said two temperatures sensed.
  • said arrangement is configured to control said suction device to change from said low power operation state to said active operation state when the temperature sensed by said first temperature sensor exceeds the temperature sensed by said second temperature sensor by a predetermined value, such as 1°C, 2°C or 3°C.
  • a predetermined value such as 1°C, 2°C or 3°C.
  • the arrangement comprises means allowing an adjustment of a target temperature of the air sensed by said first temperature sensor to be reached by the operation of the suction device once the suction device has assumed said active operation state.
  • said means allowing an adjustment of said target temperature is configured to allow an adjustment of said target temperature to a value of 25-35°C. This results in a possibility to adjust the cooling effect obtained through said suction according to the individual wishes of the persons using the mattress and other conditions, such as clothing of said person.
  • said suction device comprises a fan member having a number or revolutions depending upon the power supplied thereto.
  • the mattress comprises at least one channel connected to the exhaust side of the fan member, defined by sound absorbing material, for example polyurethane, so as to suppress noises generated by the operation of said fan member. This means that the suction device may be operated at a rather high level without disturbing a person lying on the mattress and trying to sleep.
  • said at least one channel extends from said fan member located centrally at the foot end of the mattress inside the mattress transversally with respect to the longitudinal direction of the mattress for letting air out through lateral surfaces and/or bottom surfaces and/or the end surface at the foot end of the mattress.
  • the mattress is turnable by 180° about the longitudinal axis thereof so as to make a bottom surface thereof located opposite to said upper support surface to act as an alternative upper support surface
  • at least parts of an alternative upper limitation of the mattress so formed are designed to have a good ability to let air through and have a similar construction as the upper limitation of the ordinary upper support surface of the mattress
  • said opening connected to the exhaust side of the suction device is connected to the inner side of the mattress so as to blow air out through said alternative upper support surfaces in a turned state of the mattress.
  • Which of the two large surfaces of the mattress to be used as support surface may then be selected depending upon the temperature in the room where the mattress is located and the physiological and psychological characteristics of said person.
  • To use the mattress for blowing air onto a person resting thereon is desired when it is extremely hot in the room where the mattress is used.
  • the mattress comprises a cavity arranged at a head end of the mattress and opening laterally, and this cavity is configured to receive an arrangement for regulating the power of said suction device, power means and cabling at least during transport of the mattress.
  • the mattress includes an elastic bag-like covering 2 of textile being air-permeable, soft and wear resistant and surrounding the rest of the mattress for keeping the different parts thereof protected.
  • the covering 2 may be opened to get access to the interior thereof through a zipper 30.
  • a layer 3 of open foam is arranged under the top part of said covering 2.
  • This layer is made of a soft and elastic material having an open structure with a good air-permeability both horizontally and vertically, such as reticulated polyurethane foam.
  • An air-tight and elastic layer 4a is arranged under the layer 3 of open foam.
  • the layer 4a is provided with through-holes 6 in a restricted region substantially corresponding to parts of upper support surfaces 7 of the mattress adapted to receive and support the trunk and the head of a person lying on the mattress.
  • a further layer 5 with a good air-permeability is arranged under the layer 4a and functions as a channel layer.
  • This layer 5 may have the properties as the layer 3 but is preferably slightly harder for not being obstructed by the pressure of a body resting on the mattress and the negative air pressure caused by a suction device disclosed further below.
  • a further air-tight layer 4b is arranged under the layer 5 and this layer has an opening 8 at the foot end 9 of the mattress.
  • a suction device in the form of a fan member 10 is arranged in a foam block 11 with a rather high density for good sound silencing properties with the suction side connected to said lower opening 8 of the air-tight layer 4b.
  • the fan member 10 has circumferential exhaust openings 12 connected to two channels 13 arranged in said foam block 11 and having an extension including turns so as to suppress noises generated by the operation of the fan member 10.
  • the channels 13 extend from the fan member 10 located centrally transversely with respect to the longitudinal direction of the mattress and end close to opposite lateral sides of the mattress for letting air out through lateral surfaces, bottom surfaces (air-permeable bottom plate 17) and end surfaces at the foot end of the mattress as shown through the arrows A in Figs 2 and 3 .
  • a mid portion 15 of the mattress includes pocket springs 16 for supporting the upper parts of the mattress and making it comfortable for a person lying on the mattress.
  • the mattress further comprises a foam block 19 of medium hardness at the head end 20 and having a cavity 21 opening laterally for receiving an arrangement 22 for regulating the power of the fan member 10, power means 23 and cabling 24 at least during transport of the mattress.
  • the power means 23 includes preferably a transformer and rectifier for delivering a direct voltage of for instance 12V to said arrangement 22 controlling the power supplied to the fan member.
  • the fan member may just as well be connected to a 12V battery would it be desired to use the mattress for instance onboard a boat.
  • the fan member is preferably configured to run continuously either in a state of low power operation, for instance 2W, or a state of active operation at a power of for instance up to 15W.
  • the mattress further comprises a first temperature sensor 25 configured to sense the temperature of the air sucked through the mattress and is here arranged inside the house of the fan member 10 on a circuit-card with a micro processor controlling the fan member, and a second temperature sensor 26 configured to sense the room temperature in the free space surrounding the mattress.
  • the arrangement 22 may be configured to control the fan member 10 to change from said low power operation state to said active operation state when the temperature sensed by the first temperature sensor 25 exceeds the temperature sensed by the second temperature sensor by a predetermined value, such as 1°C, 2°C or 3°C.
  • Said micro processor receives temperature information from the two sensors 25, 26 and is programmed to control the fan member to change to active operation state when the temperature difference sensed exceeds for instance 3°C and then change back to low power operation state when said difference falls below 3°C again.
  • the arrangement is provided with means 27 allowing adjustment of a target temperature of the air sensed by said first temperature sensor once the suction device has changed from low power operation to active operation state. This target temperature may be well above the temperature at which said state change appears and thus be individually controlled by acting upon said means 27 according to the wishes of the person using the mattress.
  • the state change will take place at a temperature of 24°C sensed by the first temperature sensor, and the fan member 10 may then be controlled towards a target temperature of for instance 30°C of the air reaching said first temperature sensor. Accordingly, the fan member will run at low power operation when no person is lying on the mattress and the temperature sensors will show the same temperature and then keep the upper support surfaces of the mattress dry and cool. When a person lies down on the mattress the temperature sensed by the first temperature sensor will increase and when it reaches a predetermined value the arrangement will switch the fan member to said active operation state.
  • said target temperature is adjusted to be very low, for instance 25°C, whereas it may be adjusted to be 35°C if the person wishes to have a weak cooling effect.
  • the arrangement may through said means 27 also be controlled to override any information from said temperature sensors in positions of a minimum and a maximum power supplied to the fan member obtained by hand control of a person using the mattress.
  • the mattress of this embodiment may have a weight of 10 kg and a thickness of 9 cm and be rolled together into a roll with a diameter of approximately 45 cm, which may be carried along in a suitable bag 28 as schematically illustrated in Fig 4 .
  • Said arrangement 22 may also be provided with a timer making it possible to the person to obtain a switching of the power supplied to the fan member to a lower power, for instance two hours before the person is expected to wake up, for slightly increasing the temperature sensed by the person when waking up.
  • the mattress may also have a microphone 31 and an accelerometer 32 connected to the arrangement or adapted to communicate with a smart phone through a suitable app. This makes it possible also for hospitals to lend the mattress to people having sleeping problems so as to collect data during their sleep for analysis.
  • the first temperature sensor may be supplemented by a moisture sensor sensing the moisture degree of the air sucked by the fan member and increasing the power of the fan member when the moisture degree of said air sucked through the fan member is abnormally high so as to reduce unpleasant experience of sweat from the body of a person resting on the mattress.
  • a moisture sensor may be used for refining the regulation of the suction device.
  • the pocket springs in the mid portion may be replaced by a thicker, for instance 35 mm, foam layer having an open structure.
  • the suction device of the mattress may have more than one fan member, and such fan members may be arranged in any conceivable way, such as in series or in parallel.
  • the mattress comprises a suction device
  • the mattress is provided with more than one fan member.
  • Two fan members may for example be arranged in parallel or in series for increasing the power of the suction device. It would then also be possible to have one fan member for drawing air from an upper support surface of the mattress and one for blowing out air through an upper support surface of the mattress. These may then be controlled so that the one blowing is switched on when the one sucking does not manage to keep the temperature below a predetermined level. One of the fan members will then operate at the time.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
EP15172536.3A 2014-06-17 2015-06-17 A top mattress Active EP2957191B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15172536T PL2957191T3 (pl) 2014-06-17 2015-06-17 Materac wierzchni

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1450752 2014-06-17

Publications (2)

Publication Number Publication Date
EP2957191A1 EP2957191A1 (en) 2015-12-23
EP2957191B1 true EP2957191B1 (en) 2019-02-27

Family

ID=53442588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15172536.3A Active EP2957191B1 (en) 2014-06-17 2015-06-17 A top mattress

Country Status (3)

Country Link
EP (1) EP2957191B1 (pl)
ES (1) ES2726903T3 (pl)
PL (1) PL2957191T3 (pl)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9888785B2 (en) 2014-04-21 2018-02-13 Casper Sleep Inc. Mattress
AU2015392446A1 (en) * 2015-04-23 2017-11-09 Tempur-Pedic Management, Llc Support cushions and methods for active ventilation of same
CN111163666A (zh) 2017-08-14 2020-05-15 佳思铂眠公司 包含人体工学和硬度调节的内骨架的床垫
WO2019209733A1 (en) 2018-04-23 2019-10-31 Casper Sleep Inc. Temperature-regulating mattress
USD908398S1 (en) 2019-08-27 2021-01-26 Casper Sleep Inc. Mattress
USD927889S1 (en) 2019-10-16 2021-08-17 Casper Sleep Inc. Mattress layer
CN111166100B (zh) * 2020-03-11 2024-10-15 江西蓝臻智能科技有限公司 一种多功能智能床垫

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493067A (en) 1945-09-08 1950-01-03 Louis J Goldsmith Mattress
SE522212C2 (sv) * 2000-03-09 2004-01-20 Stjernfjaedrar Ab Ventilerad säng med temperaturstyrning
JP4961522B2 (ja) * 2008-09-21 2012-06-27 善雄 鈴木 エコスリープ寝具

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2957191A1 (en) 2015-12-23
ES2726903T3 (es) 2019-10-10
PL2957191T3 (pl) 2019-08-30

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