JP2010075377A - Temperature-regulating mattress - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temperature-regulating mattress which can improve thermosensitivity of the body on the mattress. <P>SOLUTION: In a mattress 1, an air circulation passage 60 which has a front-side passage 61 formed along the front of the area of the mattress 1 on which a person lies as a part of pathways and circulates air is formed. A gas-permeable fiber layer 8 is formed in the front-side passage 61, an airtight mattress cover 11 which covers the top of the gas-permeable fiber layer 8 is attached and the mattress cover 11 forms a passage wall on the front-side passage 61. To the bottom wall of the front-side passage 61 corresponding to at least one partial location of the lower back and the legs of the body 9 lying on the mattress 1, a ventilation adjusting means 27 which turns the air flow passing through the front-side passage 61 to upward and makes the air flow collide with the mattress cover 11 of the top wall of the air circulation passage is formed by making the bottom wall of the front-side passage 61 high and vertical width of the front-side passage 61 narrow. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention can be used as a mattress for bedding such as a bed for sleep, or as a non-sleep mattress such as a bed for rehabilitation, medical treatment, an operating table, a neonatal intensive care, a sofa bed, etc. The present invention relates to a temperature control mattress provided with

  Due to the recent declining birthrate and aging population, an increasing number of people are hindering the maintenance and improvement of their healthy condition. In addition, even if they are generally healthy, there are an increasing number of people who complain of disabilities such as knees and feet that cool locally even in summer, and people who complain of sleep disorders caused by this. Furthermore, according to the recent 24-hour society as a whole and the night pattern of life patterns, the number of people who cannot maintain good sleep and suffer from insomnia or some sleep disorder is increasing.

  People who suffer from physical condition or cool locally may use supporters with built-in heaters, hot baths, hot compresses and massage devices in daily life to increase metabolism and promote blood circulation. Etc. are used to relieve symptoms of the affected area causing coldness and pain.

  However, the treatment for alleviating the above pain symptoms is generally performed in a sitting position or standing position, and warms or cools the affected area while sleeping or lying on the body, etc. The temperature was not adjusted, and it was inconvenient for elderly people who were unable to move due to aging or who had a difficult sitting posture. In addition, there was no other means to relieve the pain in the affected area in the lying state, but the electric blanket is a means of heating the whole body, which is inconvenient for people who appeal for local coldness in summer. It was something.

  In general, heating means such as electric blankets and supporters are a combination of a cloth, a rubber-cloth composite, and a heater, and the function is only for heating. Since it is difficult to maintain and the heat capacity of the part in contact with the body is large, accidents such as low temperature burns may occur.

  On the other hand, people who are unable to maintain good sleep according to the 24 hours of society as a whole and the night pattern of their daily life, such as taking sleeping pills, taking a warm bath before going to bed, doing light exercise, etc. Trying to get good sleep by raising body temperature before going to bed. In other words, as a means of taking a good sleep, in order to effectively cool the deep body temperature including the brain, which is a necessary condition at the time of sleep, enter a warm bath at a temperature of about 40 ° C. before sleep, or generate heat by exercise The body is warmed by expanding the peripheral blood vessels, the peripheral blood vessels are expanded, and the deep body temperature is rapidly lowered by promoting the heat dissipation, so that a smooth sleep is performed.

  However, it is often difficult for an elderly person, particularly an elderly person who complains of sleep disorder, to always enter a warm bath. In addition, sleep disorders in the elderly include temperature sensing functions of peripheral tissues due to aging, temperature sensing functions of cold cells, etc., and the nerve tissues themselves that transmit this to the thermoregulatory center of the hypothalamus, as well as melatonin, etc. Occasionally, the amount of hormones secreted in the brain that lower the body temperature is so small that the body temperature cannot be lowered. There was also a problem.

  In response to such a problem, a temperature-adjustable mattress that can warm and cool the body of a person or the like lying on the mattress as a whole has been proposed (see, for example, Patent Documents 1 and 2).

  This temperature control mattress circulates temperature-controlled air inside a mattress main body made of urethane foam, hard cotton or the like, and heat exchanges between the body on the mattress and the air at the upper surface portion. A specific configuration example is shown in FIG.

  As shown in the figure, this temperature control mattress 1 has a mattress main body 71 made of a four-layer urethane foam laminate and a mattress cover 11 provided on the upper side, and the mattress cover 11 has an opening. 55 is formed. The mattress main body 71 includes the first layer 3, the second layer 4, the third layer 5, and the fourth layer 6 in order from the top. The first layer 3 has a frame member 7 of a frame-like heat insulating material with the horizontal direction as the frame surface, and a breathable fiber layer 8 is accommodated and fixed in the frame of the frame member 7. The breathable fiber layer 8 forms a heat exchange layer that performs heat exchange with the body 9 in this portion.

  Further, in this example, the third layer 5 has an air passage 12 formed in a region corresponding to the heat exchange layer (breathable fiber layer 8), and the third layer 5 is located at a position corresponding to the front end side of the air passage 12. The second layer 4 is formed with a blower port 15 that allows the air passage 12 and the breathable fiber layer 8 to communicate with each other and sends the air that has passed through the air passage 12 to the breathable fiber layer 8 side. A unit accommodating portion 19 is formed on the proximal end side of the air passage 12, and the temperature adjusting unit 2 is accommodated in the unit accommodating portion 19. An intake groove 28 is formed in the second layer 4 so as to correspond to the intake port 10 of the temperature control unit 2.

  In the temperature control mattress 1, air is circulated through the air passage 12 and the heat exchange layer 3a as shown by an arrow A by performing air suction and air blowing by the temperature control unit 2. Further, by providing means for adjusting the temperature of the air in the temperature adjusting unit 2, the temperature of the air sent from the temperature adjusting unit 2 can be adjusted. The temperature adjusting unit 2 sucks indoor air as shown by an arrow B in the figure and exhausts heat as shown by an arrow B 'in the figure.

JP 2007-007378 A Japanese Patent Application No. 2007-138089

  By the way, in the temperature control mattress 1, heat exchange between the mattress 1 and the body 9 is performed at a contact portion of the body 9 on the mattress, and the heat exchange is performed on the head that does not directly contact the temperature control mattress 1. It is performed between the first and the mattress cover 11 on the upper side of the breathable fiber layer 8 through which air circulates, the back, waist, and thighs except the part. However, among these, the foot portion has a problem that it is hard to feel the temperature of the circulating air compared to the back and the waist portion, and it is difficult to feel coolness in the cooling operation and warmth in the heating operation.

  Especially for those with coldness who have insufficient blood circulation to the foot due to some cause, even though the mattress surface temperature of the foot is heated to the same temperature as the body part, it is difficult to feel warmth and complain of coldness There was a problem that there were many.

  For example, even in the summer, severe people with a relatively strong cold sensation will sleep if the entire body is hot but the feet are cold and the indoor environment is cooled, but only the feet are not heated. Often difficult. For this reason, it is necessary for such people to actively warm only their feet, for example, with an electric blanket, for several tens of minutes when bed is placed.

  Therefore, in order to deal with such complaints, Patent Document 2 proposes that the temperature control portion of the mattress is divided into a back portion and a foot portion, and each is operated using a separate temperature control unit. Yes. However, doing so has a problem in practical use since it leads to a significant increase in cost.

  Further, the proposed temperature control mattress has a structure in which the entire mattress is hermetically sealed with the mattress cover 11 and the temperature control method is internal air circulation, so that it is efficient and can reduce power consumption. On the other hand, if water is spilled on the mattress or if the mattress has been used for many years, it is difficult to remove moisture that gradually enters the mattress from the body 9 by transpiration. was there.

  Furthermore, in the proposed temperature control mattress, as one of the operation modes, there is a drying operation for removing water vapor or the like released from the body in the mattress. However, the following problems are associated with this drying operation. May occur. In other words, in this drying operation, high-temperature air, for example, 40 ° C. to 45 ° C. is blown into the mattress for several hours, so that the humidity in the mattress is passed through the mattress cover or the mattress cover is removed. However, if a Peltier element attached to a pedestal or the like is used to blow the high-temperature air, the surface on the heating side of the Peltier element (the surface opposite to the pedestal) should be 40 ° C. or higher. In this case, the pedestal side mounting surface of the Peltier element becomes a cooling surface, which is about 0 to 10 ° C., so the moisture contained in the air near the pedestal becomes less than the dew point, causing condensation and water drops in the case There was a problem that the heat regulation element or the circuit board deteriorated and the reliability of the temperature control function was lowered.

  The present invention has been made in order to solve the above-mentioned problems, and the object of the present invention is to feel cool or warm in the body part on the mattress as well as in the back part and the waist part in the foot part. It is desirable to provide a highly reliable temperature control mattress with a simple configuration capable of removing high-humidity air that has entered the inside of the mattress.

  In order to achieve the above object, the present invention has the following configuration as means for solving the above problems. That is, according to the first aspect of the present invention, an air circulation passage that circulates air having a surface-side passage formed along the surface side of the region where the person of the mattress lies as a partial path is formed in the mattress. A breathable fiber layer is provided in the surface side passage, an airtight cover member is provided to cover the upper side of the breathable fiber layer, and the cover member forms a passage wall on the upper side of the surface side passage. And the bottom wall side of the surface side passage corresponding to the position of at least one of the waist and feet of the body lying on the mattress, the bottom wall surface of the surface side passage is raised and the vertical direction of the surface side passage is The air flow adjusting means is provided to change the direction of the air passing through the surface side passage upward by reducing the width of the air flow so that the air flow collides with the cover member of the upper wall surface of the air circulation passage.

  Further, in the second invention, in addition to the configuration of the first invention, a breathable fiber layer forming a portion corresponding to the lower side of at least one partial position of the waist and feet of the body on the mattress, A configuration in which the hardness is lower than that of the breathable fiber layer in other portions is used as a means for solving the problem.

  Furthermore, in addition to the configuration of the first or second invention, the third invention is provided on the bottom wall side of the surface side passage corresponding to the position of at least one of the waist part and the foot part of the body lying on the mattress. A heating means for increasing the temperature of the air flowing through the surface-side passage is provided, and the heating means serves as a means for solving the problem with a configuration also serving as a ventilation adjusting means.

  Further, the fourth aspect of the invention includes, in addition to the configuration of the first, second, or third aspect of the invention, an air lead-out portion that leads the air out from the air circulation passage, and an air introduction that introduces outside air into the air circulation passage. And introducing outside air from the air introduction part and derivation of air from the air lead-out part to the outside while circulating the air in the air circulation path. A configuration having an air exchange function for exchanging air and outside air serves as means for solving the problem.

  Furthermore, in addition to the configuration of the fourth invention, the fifth invention is a first switching valve that switches between the presence and absence of introduction of outside air from the air introduction portion at the communication portion between the air circulation passage and the air introduction portion. And a second switching valve for switching presence / absence of the derivation of air from the air derivation unit is provided at a communication portion between the air circulation passage and the air derivation unit, and the first and second switching An operation for controlling the valve, exchanging the air in the air circulation passage by circulating the air in the air circulation passage and exchanging the air in the air circulation passage and the outside air, and without introducing and deriving the air. It has an operation switching control means for switching between the operation of circulating the air in the air circulation passage.

  Furthermore, the sixth invention has humidity detection means for detecting the humidity of the air in the air circulation passage in addition to the configuration of the fifth invention, and the detected humidity detected by the humidity detection means is predetermined. And a humidity adjusting means for exchanging the air in the air circulation passage with the outside air by the operation switching control means to adjust the humidity of the air in the air circulation passage to be reduced when the set threshold value is exceeded. It is characterized by.

  Further, according to a seventh aspect of the invention, in addition to the configuration of the fourth aspect of the invention, the cover member is formed with openings at intervals in the air flow direction passing through the surface side passage and passes through the surface side passage. An opening formed on the upstream side of the air flow forms an air outlet portion, and an opening formed on the downstream side of the air flow forms an air introduction portion, and the opening of the cover member is formed An airtight lid member is detachably provided on the upper side of the region.

  Furthermore, the eighth invention is provided with temperature adjusting means for adjusting the temperature of the air circulating in the air circulation passage in addition to the structure of any one of the first to seventh inventions, The adjusting means includes a thermoelectric conversion element and a heater, and heater driving means for driving the heater to suppress the occurrence of dew condensation in the temperature adjusting means is provided.

  According to the present invention, a surface-side passage is formed along a surface side of a region where a person lies as a partial route of an air circulation passage for circulating air in the mattress, and an upper passage wall of the surface-side passage is hermetically sealed. The bottom wall of the air circulation passage is raised on the bottom wall side of the surface side passage corresponding to the position of at least one of the waist and feet of the body lying on the mattress. Airflow adjusting means is provided for converting the direction of the air passing through the surface-side passage upward so that the airflow collides with the cover member on the upper wall surface of the air circulation passage by reducing the vertical width of the surface-side passage. Therefore, the air can collide with the cover member at the partial position to efficiently warm or cool the partial position.

  Therefore, in the configuration in which the circulating air is uniformly flowed as a whole, the ventilation adjusting means is provided at a position corresponding to the foot portion even in the foot portion where it is difficult to feel the temperature of the circulating air as compared with the back and waist portions. According to the present invention, with a simple configuration, it can be felt sufficiently warm in the heating operation, and can be sufficiently cool in the cooling operation. Further, if the ventilation adjusting means is provided at a position corresponding to the waist, for example, in the heating operation, the waist can be warmed with priority, and in the cooling operation, the cool feeling at the waist can be enhanced.

  In addition, one of the reasons why the feet are difficult to feel the warmth and coolness of the circulating air is that the weight of the feet in the lying position is light, so there is less contact pressure with the mattress and less sinking. There is. On the other hand, in the present invention, by forming the breathable fiber layer forming the portion corresponding to the lower side of the foot portion of the body on the mattress lower than the breathable fiber layer of the other portion, The sinking of can be increased. Therefore, with this configuration, it is possible to make the foot feel sufficiently warm in the heating operation and feel cool enough in the cooling operation.

  Also, if the breathable fiber layer forming the part corresponding to the lower side of the waist of the body on the mattress is formed to be lower in hardness than the breathable fiber layer of other parts, for example, in the heating operation, the waist is focused on It can be warm, and in the cooling operation, the waist can feel sufficiently cool. In addition, when the body lies on the mattress, the part corresponding to the lower side of the lumbar part sinks more than the part corresponding to the lower side of the foot part, so a part corresponding to the lower side of the lumbar part is formed. When the breathable fiber layer to be formed is lower in hardness than the breathable fiber layers of other parts, it is better to form it a little harder than the breathable fiber layer that forms parts corresponding to the feet.

  Furthermore, by providing a heating means also serving as a ventilation adjusting means on the bottom wall side of the surface side passage corresponding to the position of at least one of the waist part and the foot part of the body lying on the mattress, it is possible to more efficiently The partial position can be warmed.

  Further, in the present invention, an air exchanging function for exchanging the air in the air circulation passage and the outside air by providing an air lead-out portion for leading out air from the air circulation passage and an air introduction portion for introducing air into the air circulation passage. In the configuration having the above, the air in the mattress can be easily kept in a dry state by exchanging with the outside air.

  Further, the first switching valve provided at the communication portion between the air circulation passage and the air introduction portion and the second switching valve provided at the communication portion between the air circulation passage and the air outlet portion are controlled by the operation switching means. The operation of exchanging the air in the air circulation passage by exchanging the air and the outside air while circulating the air in the air circulation passage, and the air circulation passage without introducing and deriving the air According to the configuration for switching between the operation of circulating the air in the interior, efficient heat exchange with the body on the mattress by only the air circulation operation in the mattress is performed by controlling the first and second switching valves and the air circulation. And exchange of circulating air and outside air can be performed appropriately.

  Further, the humidity of the air in the air circulation passage is detected, and when the detected humidity exceeds a preset threshold value, the air in the air circulation passage is exchanged with the outside air by the operation switching control means. For those that have a configuration that adjusts the humidity of the air in the passage to decrease, the humidity inside the mattress can be less than the set threshold, so that the inside of the mattress is moistened by incontinence or spilling water, etc. Not only can this be prevented, but the interior of the mattress can always be dried and cleaned even in a hot and humid environment where the mattress is installed.

  Furthermore, by forming an opening in the cover member, forming the opening as an air outlet portion and an air introduction portion, and providing an airtight lid member on the upper side of the opening formation region of the cover member, Since the air in the mattress can be appropriately exchanged with a simple configuration, it is more economical.

  Embodiments according to the present invention will be described below with reference to the drawings. In the description of the present embodiment, the same reference numerals are assigned to the same name portions as those in the conventional example, and the duplicate description is omitted or simplified.

  FIG. 1 schematically shows the configuration and operation of a temperature control mattress according to a first embodiment of the present invention together with a human body 9 lying on the temperature control mattress 1. FIG. 2 is a schematic exploded perspective view showing the configuration of the temperature control mattress 1 of the present embodiment.

  As shown in these drawings, the temperature control mattress 1 of the present embodiment is similar to the conventional example in that a mattress body 71 made of a four-layer urethane foam laminate and a cover member provided on the upper side thereof are used. A mattress cover 11 is provided. The mattress cover 11 has airtightness. As shown in FIG. 1, the mattress cover 11 has an opening 55 as in the first and mattress covers 11a and 12b in the conventional example. In FIG. 2, the opening 55 is not shown.

  The frame member 7 forming the first layer 3 of the mattress body 71 is made of, for example, a semi-rigid highly elastic urethane foam. The breathable fiber layer 8 forming the first layer 3 is formed of a material having a high air flow property such as a three-dimensional woven fabric. For example, a three-dimensional nonwoven fabric such as a polyester having a thickness of 30 mm is given as a specific example. Examples of the structure include a fabric formed by three-dimensionally weaving fibers such as polyamide and polyester (for example, fibers having a diameter of 0.5 mm or less).

  The second layer 4 is formed of urethane foam or the like, and the third layer 5 is made of, for example, semi-rigid urethane foam having a thickness of 60 to 80 mm. In the present embodiment, the air passage 12 has a T-shape, and the second layer 4 has four circular shapes corresponding to the position on the front end side of the air passage 12 (the branch passage 14). A blower port 15 is formed. In the present embodiment example, by providing a plurality of air blowing ports 15 at intervals above each other in the upper part of the branch passage 14 branched in a T-shape, the air passage 12 provided in the groove shape is provided. The wind is spread in the width direction of the mattress and adjusted so that the air volume is uniform.

  In the present embodiment, the inner wall of the frame member 7, the mattress cover 11, and the upper surface wall of the second layer 4 are formed along the surface side of the region where the person lies on the temperature control mattress 1. A front surface side passage 61 (see FIG. 1) is formed. The air-permeable fiber layer 8 is provided in the surface-side passage 61, and the mattress cover 11 on the upper side of the air-permeable fiber layer 8 forms a passage wall on the upper side of the surface-side passage 61. Yes. The surface side passage 61 and the air passage 12 below the second layer 4 communicate with each other via the air blowing port 15 and the intake groove 28, and as shown by an arrow A in FIG. 12, an air circulation passage 60 that circulates in order through the air blowing port 15, the front surface side passage 61, and the intake groove 28 is formed. That is, the surface side passage 61 is formed as a part of the air circulation passage 60.

  Note that the notation of the first layer, the second layer, the third layer, and the fourth layer used here is used for ease of explanation, and the temperature control mattress of the present invention is not necessarily horizontal. A plurality of layers need not be stacked in the direction, and may be formed by cutting out blocks, for example. That is, an air circulation passage 60 that circulates air is formed in the mattress, as a partial path, having a surface-side passage 61 formed along the surface side of the region where the person of the temperature control mattress 1 lies. Just do it. Further, the user may be provided with sheets or the like on the outer peripheral side of the mattress cover 11 as necessary.

  The characteristic feature of the present embodiment is that ventilation is provided on the bottom wall side of the surface side passage 61 corresponding to the position of at least one of the waist part and the foot part (here, the foot part) of the body 9 lying on the mattress 1. The adjustment means 27 is provided. This air flow adjusting means 27 has a slope on the upstream side (the left end side in FIG. 1) of the air flow, and raises the bottom wall surface of the surface side passage 61 to reduce the vertical width of the surface side passage 61. Thus, the direction of the air passing through the surface side passage 61 is changed upward, and the air flow collides with the mattress cover 11 on the upper wall surface of the air circulation passage.

  The air flow adjusting means 27 is made of a flexible heat insulating material, such as polyethylene or polyurethane foam. In this embodiment, the air flow adjusting means 27 corresponds to the leg width of the surface side passage 61 in the vertical direction. It narrows at the part and functions to be directed toward the upper side, which is the foot side of the mattress cover 11. The ventilation adjusting means 27 is fixed to the second layer 4 by fixing means (not shown) such as adhesion and adhesion, and the ventilation adjusting means 27 is located at a position corresponding to the intake groove 28 of the second layer 4. An inlet 20 is provided.

  As shown by the arrows in FIG. 1, the air blown from the temperature control unit 2 passes through the air passage 12, rises to the mattress surface side near the head of the body (human body) 9, Although entering the air-permeable fiber layer 8 of the passage 61 and proceeding in the air-permeable fiber layer 8 in the horizontal direction toward the end of the mattress, in the present embodiment example, unlike the conventional case, the air flow adjusting means 27 is present. As a result, the air travels as shown by the arrows in FIGS.

  That is, the air passing through the breathable fiber layer 8 (temperature-adjusted air) is directed upward on the front side of the region where the ventilation adjusting means 27 is disposed (see the portion indicated by B in FIGS. 1 and 3). The flow path is narrowed, turbulent, and collides with the mattress cover 11. As a result, heat exchange between the circulating air and the foot portion can be greatly improved, and heat sensitivity in the foot portion can be improved, so that the foot portion is also warm and cool as in the back. It is possible to realize a comfortable temperature control mattress 1 that can be easily felt.

  The shape of the air flow adjusting means 27 is not necessarily the shape shown in FIGS. 1 and 3, and the airflow flowing through the breathable fiber layer 8 lies on the portion of the mattress cover 11 on which the foot is placed (the mattress 1 lies). The ventilation area is reduced at the position of the breathable fiber layer 8 corresponding to the lower side of the foot so that the heat exchange capability is easily exerted. The airflow may be converted upward to collide with the mattress cover 11.

  As another example of the air flow adjusting means 27, for example, as shown in FIG. 4A, the cross section is substantially rectangular, as shown in FIG. 4B, the upper surface is curved, and FIG. ), The cross section is almost rectangular, but it is possible to squeeze both sides to make the air flow easily in the center. Further, the portion where the intake groove 20 is formed is not necessarily provided integrally with the air flow adjusting means 27 and may be a separate part. 4A to 4C, a perspective view of an example of the air flow adjusting means 27 is shown on the upper side, and the air flow adjusting means 27 is provided on the lower side. A cross-sectional view schematically showing the flow of air through the surface side passage 61 is shown.

  In addition, despite the fact that the surface temperature of the mattress is almost the same, one of the reasons why it is difficult to feel warmth at the feet compared to the back etc. when lying down is that the blood flow from the heart is from the heart. This is due to weakness in the farthest foot, lack of blood flow, and imperfection of autonomic nerves that control the expansion and contraction of skin blood vessels according to the temperature. The weight of the foot part in a lying posture is light. Specifically, in general, when a person is lying on his back, the weight on each part is 8 on the head (pillow), 33 on the back, 44 on the buttocks, It is said that it is applied to the part at a rate of 15, and the weight applied to the foot part is small. In this way, because the weight applied to the foot is small, the contact pressure with the mattress is small, the sinking is small, and the contact area of the foot itself is considerably less than the back part etc. It is hard to feel warmth.

  Therefore, in this embodiment, the hardness of the breathable fiber layer 8 that forms a portion corresponding to the lower side of the foot portion of the body 9 lying on the mattress is lower than that of the breathable fiber layer 8 in other portions. (For example, by making the gap between the fibers larger than other parts to make the hardness low), the sinking in the foot part is increased, and the heat exchange between the circulating air and the foot part is further increased. Since it is improved, it is possible to further feel warmth and coolness in the foot, and to realize a more comfortable temperature control mattress 1.

  Further, the configuration of the temperature control unit 2 applied to the present embodiment is not particularly limited. For example, the temperature control unit 2 having the structure shown in FIG. 5 can be applied. The temperature adjustment unit 2 includes an air circulation means 16 that circulates air inside the mattress through an air circulation passage 60 and a temperature adjustment means 17 that adjusts the temperature of the air circulated by the air circulation means 16. It is accommodated and formed in the case 18.

  The air circulation means 16 is made of, for example, a sirocco fan, and sucks air and blows air so that the temperature-adjusted air is passed from the air passage 12 to the surface side passage 61 below the body 9 (that is, a breathable fiber layer). 8) and air exchanged with the body 9 is returned from the intake groove 28 to the intake port 21 through the intake port 10 to circulate the air. In this air circulation, when the body 9 is on (lays down) on the mattress, the body 9 and the internal circulating air are passed through the mattress cover 11 and a pad (not shown) placed thereon. Heat exchange between the two.

  The temperature adjusting means 17 includes a heat exchange element 22, a circulation heat sink 23 that circulates air inside, a heat pipe 24, a heat exhaust heat sink 25, and a heat exhaust fan 26, and circulates with the heat exchange element 22 in the case 18. A case inner partition wall 19 is provided between the region where the heat sink 23 is disposed and the region where the exhaust heat sink 25 and the exhaust heat fan 26 are disposed so that the internal circulating air and the exhaust heat air do not mix with each other. Further, the heat generated by the operation of the heat exchange element 22 takes in outside air from the outside air intake 45 provided in the case 18 shown in FIG. It is removed by being discharged from 44 (see arrows B and B ′ in FIG. 2).

  The heat exchange element 22 can be constituted by a Peltier element 83 as a thermoelectric conversion element, for example, but as shown in the schematic diagrams of FIGS. 5 and 18B, the Peltier element 83, the heater 81, It is preferable that the heater 81 is disposed on the lower surface of the lower pedestal 82 on which the Peltier element 83 is disposed. In this case, for example, a polyimide heater formed by combining a metal foil resistance with a polyimide resin, a sheet-like silicon rubber heater with a built-in resistance wire in a planar shape, or the like is applied as the heater 81.

  When the heater 81 is provided together with the Peltier element 83, the following effects can be obtained. That is, as shown in FIG. 18A, when the heat exchange element 22 is configured by the Peltier element 83 without providing the heater 81, for example, the air circulating through the air circulation path to dry the inside of the mattress is used. When the temperature is 40 ° C. or higher, the temperature of the circulating heat sink 23 (point A temperature in the figure) reaches, for example, 42 ° C., and the lower pedestal 82 that is the lower surface of the heat exchange element 22 is cooled by the Peltier effect. When the temperature is about ° C., the temperature of the lower pedestal 82 (point B temperature in the figure) falls to 10 ° C. or less, and condensation occurs (see the graph of FIG. 18A).

  On the other hand, as shown in FIG. 18B, when the heater 81 is disposed on the lower surface of the lower pedestal 82 and is appropriately driven, the temperature of the lower pedestal 82 is apparent from the graph of FIG. 18B. (Point B temperature in the figure) can be raised, so that the occurrence of the condensation can be suppressed, the heat exchange element and the circuit board can be prevented from being deteriorated, and the reliability of the temperature adjustment function can be improved. For example, the heater driving means for driving the heater 81 may control the driving of the heater 81 so that the heater 81 is always turned on during the heating operation by the heat conversion element 22, but for example, the temperature of the lower pedestal 82 (see FIG. When the temperature of point B is 5 ° C. lower than room temperature, it may be set to be turned on by microcomputer control, and the heater 81 is driven so that condensation can be suppressed. To do. Further, the arrangement position of the heater 81 is set as appropriate. Even if the heater 81 is arranged on the same plane as the Peltier element 83 as shown in the schematic diagram of FIG. Can be played.

  Next, a second embodiment of the temperature control mattress according to the present invention will be described. Note that, for each embodiment described below, starting with the second embodiment, the same reference numerals are given to the same names as those in the first embodiment, and the duplicated explanation is omitted or simplified.

  As shown in the exploded perspective view of FIG. 6, the main configuration of the second embodiment is configured in substantially the same manner as the first embodiment, and the second embodiment is the first embodiment. The difference is that the temperature control unit 2 is detachably provided outside the mattress body 71. With this configuration, in the second embodiment, the suction groove 20 of the air flow adjusting means 27 and the intake groove 28 of the second layer 4 provided in the first embodiment are not provided.

  In the second embodiment, the temperature adjustment unit 2 is connected to the third layer 5 of the mattress main body 71 via the ventilation connection member 30 and a pair of hose connection means 29. The connection means 29 is connected to the ventilation connection member 30 through the connection portion 63, and is connected to the temperature adjustment unit 2 through the intake connector 33 and the circulation connector 34. The ventilation connection member 30 is made of, for example, hard urethane, has a ventilation path inside, and is press-fitted and attached to a ventilation connection part attachment part 64 provided at an end of the mattress main body 71. The exhaust heat treatment in the second embodiment is performed through the outside air intake 45 and the exhaust heat port 44 provided on the case side surface of the temperature control unit 2.

  FIG. 7 is a cross-sectional view for explaining the details of ventilation circulation in the temperature control mattress of the second embodiment. As shown in the figure, in the second embodiment, the cross section of the air flow adjusting means 27 is a right triangle, and the air flow adjusting means 27 passes through the breathable fiber layer 8 and the flow of air. It has a slope that faces upward from the upstream side toward the downstream side.

  In the second embodiment, the air supplied from the temperature adjustment unit 2 is introduced into the air passage 12 via the ventilation connection member 30. Then, the air passage 12 proceeds toward the left side as indicated by an arrow in the figure, and is introduced into the breathable fiber layer 8 from the blower opening 15 at the end portion. Then, the air-permeable fiber layer 8 advances straight along the mattress surface toward the right side of the figure and passes through the upper side of the air flow adjusting means 27, so that the flow path is narrowed upward and turbulent. Collides with cover 11. Thereafter, the air returns to the temperature control unit 2 through the ventilation connection member 30. The second embodiment can also achieve the same effects as the first embodiment.

  Next, a third embodiment of the temperature control mattress according to the present invention will be described. As shown in the longitudinal sectional view of FIG. 8A and the transverse sectional view of FIG. 8B, the temperature control mattress of the third embodiment is configured in substantially the same manner as the first embodiment, The characteristic configuration of the third embodiment is that the air flow adjusting means 27 is formed by the heating means 32 for increasing the temperature of the air flowing through the surface side passage 61. That is, in the third embodiment, the heating means 32 is provided on the bottom wall side of the surface-side passage 61 corresponding to the foot portion of the body lying on the mattress, and the heating means 32 also serves as the ventilation adjusting means 27. It is said.

  The heating means 32 has a sheet-type heater, for example, a cord heater wire formed by insulating coating a nichrome wire is covered with a non-woven fabric of flame retardant polyester, and further a waterproof film is attached to the upper portion to waterproof. It is formed as a configuration. The heating means 32 is fixed to the upper portion of the second layer 4 by adhesion, and a lead wire 46 such as a lead wire connected to the heating means 32 is drawn out from the side portion of the temperature control mattress 1. Further, by providing the heating means 32 so as to be shifted from the intake groove 28 of the second layer 4, the air that has passed through the upper side of the warming means 32 passes through the intake groove 28 from the breathable fiber layer 8 and is a temperature adjustment unit. Return to 2. If a temperature sensitive element such as a thermistor is provided under the breathable fiber layer 8 and the heater temperature is controlled, more comfortable temperature adjustment is possible.

  Note that the heating means 32 can be operated alone before the ventilation control by the temperature control unit 2 or when the feet feel cold in summer. By heating the mattress cover surface temperature at the portion corresponding to the feet to a relatively high temperature of about 40 to 45 ° C. in a short time by the heating means 32, the inside of the pad and the comforter on the mattress is rapidly heated. Can improve comfort at bedtime.

  In addition, as described above, the breathable fiber layer 8 is a three-dimensional structure of fibers having a diameter of 0.5 mm or less, and the heat conductivity of the breathable fiber layer 8 itself is low. As in the example, when the heating means 32 is built in the mattress and the breathable fiber layer 8 having a thickness of 20 mm or more is provided on the heating means 32, the heating means 32 is discharged from the heating means 32. The heat to be transmitted is transmitted to the body 9 not by heat conduction but by radiation or air convection between the heating means 32 and the mattress cover 11.

  Therefore, the effects and advantages of providing the heating means 32 in the manner as in the third embodiment include the following. First, the electric blanket that warms the body by direct contact with the body dries the blanket material made of fibers such as heater wire and blanket materials such as acrylic and polyester, and static electricity is generated between the skin and the skin. In contrast to the generation of the skin itself and the drying of the skin itself, the configuration as in the third embodiment is less dry due to the presence of air in the mattress containing moisture in the heat transfer path, Virtually no drying is observed.

  Second, in general, people who are chilled complain of chilling are usually 10 to 20 minutes after bedtime, especially when their feet touch a futon or mattress immediately after bedtime, and the surrounding environment is reduced for a short time. If the temperature is relatively high, no heating means is required thereafter. Therefore, even in winter, electric blankets and anchors on the mattress are only needed for a short time, and it is only an obstacle to leave the electric blankets and anchors on the mattress after this time has passed. In that respect, a mattress form incorporating the heating means 32 is preferable.

  Thirdly, in the structure in which the heating means 32 is built in the mattress, the heater wire and the body 9 are not in direct contact with each other.

  The configuration of the heating means 32 is not particularly limited, and is set as appropriate. The heater surface or the entire surface is covered with a bore or a pile, like an electric blanket. Also good. Also, the heating means 32 is not provided alone, and an insulating plate member 43 such as polyurethane foam is bonded to the lower part of the heating means 32 such as a heater as shown in FIG. It is good also as a thing suitable for the ventilation adjustment means 27. FIG. 8C schematically shows the state of heat transfer from the heating means 32 when the ventilation adjusting means 27 having the configuration shown in FIG. 9 is applied in the third embodiment.

  Next, a fourth embodiment of the temperature control mattress according to the present invention will be described. The fourth embodiment is configured in substantially the same way as the second embodiment, and the fourth embodiment is different from the second embodiment in that the temperature is different as shown in FIG. A configuration having an air exchange function is provided in the adjustment unit 2.

  In the fourth embodiment, in the temperature adjustment unit 2, an air outlet part (air outlet path) 68 for leading air out from the air circulation path 60 and an air introduction part for introducing outside air into the air circulation path 60. (Air introduction path) 69 is connected, and a first switching valve 35a for switching the presence / absence of introduction of outside air from the air introduction section 69 is provided at a communication portion between the air circulation passage 60 and the air introduction section 69. A second switching valve 35b is provided at a communication portion between the air circulation passage 60 and the air outlet 68 so as to switch whether or not air is led out from the air outlet 68. The first and second switching valves 35a and 35b are formed by, for example, a three-way cock or the like, and the switching is controlled electrically or mechanically.

  As described below, the air exchange function performs the derivation of the air from the air lead-out path 68 to the outside and the introduction of the outside air from the air introduction path 69 while circulating the air in the air circulation passage 60. This is a function of exchanging the air in the air circulation passage 60 and the outside air. That is, in the fourth embodiment, the first and second switching valves 35a and 35b are controlled, and air is introduced and led out while circulating the air in the air circulation passage 60, so that the air in the air circulation passage 60 is circulated. Operation switching control means (not shown) is provided for switching between the operation of exchanging air and outside air and the operation of circulating the air in the air circulation passage 60 without introducing and deriving air. According to the control of the switching control means, the operation is performed as shown in FIGS. 10 (a) and 10 (b).

  FIG. 10 (a) shows the operation during normal operation (during operation without air exchange). In this case, the air that circulates through the air circulation passage 60 and returns to the temperature control unit 2 is shown in FIG. As shown by the arrow A in the figure, the air circulation means 16 sends the heat to the circulation heat sink 23, the heat exchange element 22 and the circulation heat sink 23 exchange heat, and the air circulation path 60 returns. When the cooling operation is performed by using a Peltier element or the like for the heat exchange element 22 that is thermally connected to the circulation heat sink 23, the heat taken from the body 9 by the cooling uses the exhaust heat sink 25 and the exhaust heat fan 26. Then, it is removed from the heat exhaust port 44 provided in the case 18. In addition, the code | symbol 47 shows a heat exchanger in the figure.

  FIG. 10 (b) shows the air circulation state during the drying operation for removing the moisture inside the mattress. In this case, the air that has circulated through the air circulation passage 60 and returned to the temperature adjustment unit 2 is discharged from the first switching valve 35a through the air outlet 68 to the outside of the piping system. Further, the second switching valve 35b is controlled so that the outside air enters from the air introduction portion 69 toward the inside of the piping system, and the outside air is introduced as shown by an arrow A, and this outside air is at an optimum temperature for drying. For example, it is heated by passing through the circulation heat sink 23 whose temperature is controlled to 45 ° C. and sent to the air circulation passage 60. Then, the air circulates inside the mattress main body 710 through the air circulation passage 60, dries the inside of the mattress, and discharges excess moisture out of the mattress system.

  By providing an air exchange configuration as in the fourth embodiment, moisture inside the mattress is released from the body, accidentally spilled water, etc., the inside of the mattress becomes highly humid, dewed, mold, Etc. can be prevented from growing.

  FIGS. 11A and 11B are explanatory diagrams of a temperature adjustment unit 2 provided in a modification of the fourth embodiment, and this example differs from the fourth embodiment in that the temperature is In the passage through which the air in the adjustment unit 2 passes, a drying means 38 made of a cylinder or the like containing water absorption means such as silica gel is provided on the front side (upstream side of the air flow) of the first switching valve 35a. It is. As described above, when the drying means 38 is provided, for example, in a normal operation (when air is not exchanged), the temperature adjustment unit passes through the air circulation passage 60 as shown in FIG. The air that has returned to 2 is constantly dried by passing through the drying means 38, and then returned to the air passage 10 from the temperature control unit 2, so that the air circulating in the mattress can be constantly dried.

  In addition, when water absorption means such as silica gel built in the drying means 38 is insufficient for the water absorption / drying function due to long-term use, the adsorbed moisture is released from the drying means 38 to the outside. The heat sink 23 is blown at a higher temperature, for example 50 ° C., and the air is discharged out of the circulation system in the mattress as shown in FIG. As a result, the drying means 38 itself is also dried, and moisture can be discharged out of the internal circulation system. In FIG. 11, reference numeral 39 denotes a temperature sensor.

  In the fourth embodiment and its modifications, humidity detecting means for detecting the humidity of the air in the air circulation passage 60 may be provided in the middle of the air circulation system, for example. In this case, the detected humidity detected by the humidity detecting means is monitored, and when the detected humidity exceeds a predetermined threshold value, the air in the air circulation passage is exchanged with outside air by the operation switching control means. And it is good to provide the humidity adjustment means which adjusts the humidity of the air in this air circulation passage in the direction made small.

  In the fourth embodiment and its modification, as shown in FIGS. 10 and 11, the first and second switching valves 35 a and 35 b are provided in the temperature adjustment unit 2. The first and second switching valves 35a and 35b may be disposed outside the case. If it does in this way, when switching the 1st and 2nd switching valve 35a, 35b by manual, it has the advantage that the switching operation | work is easy.

  Next, a fifth embodiment of the temperature control mattress according to the present invention will be described. Like the fourth embodiment, the fifth embodiment has an air exchange configuration, but this air exchange configuration is simpler and more economical than the fourth embodiment.

  That is, in the fifth embodiment, the basic configuration is substantially the same as that of the second embodiment. However, in the fifth embodiment, as shown in FIG. An air exchange configuration in which openings 42a and 42b are formed at intervals in the flow direction of the air passing through the side passage 61, and the air in the air circulation passage 60 can be exchanged with the outside air using the openings 42a and 42b. Is forming.

  In the fifth embodiment, an opening 42a formed on the upstream side of the air flow passing through the surface-side passage 61 forms an air outlet, and an opening 42b formed on the downstream side of the air flow The air introduction portion is configured to allow air inside and outside the mattress to flow through the openings 42a and 42b. In addition, if the opening parts 42a and 42b are provided on substantially the upper side of the air blowing port 15 provided in the second layer 4, ventilation becomes possible efficiently.

  Further, an airtight lid member 40 is detachably provided above the formation region of the openings 42a and 42b. The lid member 40 has, for example, a size of about 10 cm square, is made of substantially the same woven fabric as the mattress cover material, and is formed by providing, for example, a planar fastener (magic tape) on the back surface thereof. Fixing means 41 made of a sheet-like fastener that is paired with the lid member 40 is attached to the mattress cover 11 on the outer peripheral side of the openings 42a and 42b by sewing. Note that Velcro is a registered trademark, and the same applies to those described below.

  In addition, it is desirable in terms of external appearance that the openings 42a and 42b of the mattress cover should be provided with a highly breathable fiber material such as a cotton knit material or a mesh material on a hole opened by punching or the like. The lid member 40 does not need to be completely separated from the mattress cover 11 and may be partially fixed by sewing, or may be detachably fixed by a hook or hook instead of the magic tape.

  In the fifth embodiment, as shown in FIG. 13A, during normal operation, air is passed through the air circulation passage 60 in the state where the lid member 40 is fixed by the fixing means 41, as in the second embodiment. Circulate. Moreover, at the time of a drying operation, as shown in FIG.13 (b), the cover member 40 is removed and air is circulated, exchanging the air in the air circulation path 60 with external air.

  During the drying operation, the temperature of the air sent from the temperature control unit 2 is preferably about 40 to 45 ° C. in order to enhance the dehumidifying effect. Then, the high-temperature and high-humidity air sent from the temperature control unit 2 is led out as an exhaust airflow upward from the opening 42a. At this time, the interior of the mattress is somewhat negative pressure, so that the room air is The internal air that is introduced from the opening 42b as an intruding air flow and passes through the air circulation passage 60 becomes dry.

  FIG. 14 shows a sixth embodiment of the temperature control mattress 1. The sixth embodiment has a simple configuration, but further enhances warmth and coolness in bedtime. It is a temperature control mattress that can provide a safe temperature environment during sleep.

  The temperature control mattress 1 is provided with a planar ventilation means 49 having a plurality of air outlets (openings) 50 on the mattress cover 11 in order to rapidly cool or warm the body 9 at the time of going to bed. Is formed. The planar ventilation means 49 is connected to the temperature adjustment unit 2 via the ventilation connection member 51 and the connection means 52. And it is set as the structure which has the ventilation driving | operation function which blows the air temperature-controlled by the temperature control unit 2 from the temperature control unit 2 to the planar ventilation means 49 via the connection means 52 and the ventilation connection member 51. In the figure, reference numerals 53 and 54 denote ventilation connection connectors.

  The planar ventilation means 49 is formed, for example, by covering the breathable fiber layer 80 with an outer skin 57 in an airtight manner. As an example applied to the air-permeable fiber layer 80 of the planar ventilation means 49, for example, Fusion (Fusion is a registered trademark) of Asahi Kasei Fibers Corporation and the like can be mentioned. The planar ventilation means 49 is provided separately or integrally on the mattress cover 11. When the planar ventilation means 49 is provided integrally on the mattress cover 11, the planar ventilation means 49 can be fixed by sewing or the like.

  In the sixth embodiment, for example, at the time of going to bed, first, air blown into the planar ventilation means 49 is sent toward the body 9 from a plurality of air blowing ports 50 as shown in FIG. Thus, the coolness of the body 9 can be increased. At this time, as indicated by an arrow A in FIG. 16A, in the temperature adjustment unit 2, air is sent to the planar ventilation means 49 through the connection means 52 while taking in outside air from the air introduction portion 69. .

  Thereafter, after a certain time has passed, the air from the temperature control unit 2 is sent to the air circulation passage 60 via the connection means 29 and circulated in the air circulation passage 60 in the same manner as in the fourth embodiment. By doing so, the temperature of the body 9 is adjusted. At this time, an air flow as shown by an arrow A in FIG. That is, as shown in FIGS. 16A and 16B, in the temperature adjustment unit 2, the air circulation switching means 48 formed by, for example, a three-way cock or the like is appropriately switched between the air blowing operation and the air circulation operation. The air whose temperature has been adjusted by the temperature adjusting unit 2 is sent to one of the connecting means 29 and 52.

  By performing the air circulation operation by the air circulation passage 60 after the air blowing operation from the air outlet 50 as in the sixth embodiment, the following effects can be achieved. In other words, since the wind is blown directly on the body 9 in the air blowing operation, especially when the heat is severe, the body 9 on the mattress 1 is pleasantly chilled while being received by the fan. In many cases, however, the amount of heat removed becomes excessive, and troubles due to cooling tend to occur. On the other hand, if the air circulation operation is performed instead of the air blowing operation after the air blowing operation is performed for a certain time, such excessive cooling can be prevented.

  Further, during the cooling operation by the air blowing operation from the air blowing port 50, the indoor air is directly taken into the temperature control unit 2 and heat exchange is performed, so that the energy for cooling the room temperature air is substantially, for example, 200W or more. Further, there is a problem that the room temperature rises due to the release of the energy into the room. Considering these things, it is preferable to switch to circulation operation by setting the air blowing operation to 30 minutes or less.

  In addition, this invention is not limited to each said embodiment, Various aspects can be taken. For example, in each of the above-described embodiments, the temperature adjustment mattress 1 is provided with the ventilation adjustment means 27 at a position corresponding to the foot portion, for example, for a cold person who has a strong feeling of cooling on the foot portion. Thus, the ventilation adjusting means 27 may be provided on the bottom wall side of the surface side passage 61 at a position corresponding to the waist in the breathable fiber layer 8. Moreover, you may provide the ventilation adjustment means 27 in the position corresponding to the partial position of both a foot | leg part and a waist | hip | lumbar part.

  In each of the above embodiments, the temperature control unit 2 is detachably fixed to the third layer 5, but the temperature control unit 2 and the air circulation unit 67 are fixed to the third layer 5 without being detachable. May be.

  Further, in the configuration in which the heating means 32 is provided on the bottom wall side of the surface side passage 61 as in the third embodiment, the heating means 32 is formed by a sheet-like heater or the like, and the heating means 32 controls ventilation. You may form the temperature control mattress 1 of the structure which does not function as the means 27. FIG. In this case, although the temperature adjustment unit 1 is not effective by the ventilation adjustment means 27, the heating means 32 allows the portions corresponding to the partial positions of the legs and waist of the body 9 lying on the mattress with the simple structure. If appropriate, it can be locally warmed.

  Further, as an example of heating the feet and waist, as shown in FIG. 17, a configuration in which heating means 32 such as a sheet-type heater is incorporated alone in a mattress 101 not provided with a ventilation circulation function. Can also be given. In this example, during the heating operation, the surface temperature of the mattress cover 11 immediately above the region where the heating means 32 is disposed is set to about 40 to 45 ° C. using a temperature detection means and a temperature control means (not shown). Warm to a relatively high temperature. If it does in this way, compared with the structure which has a ventilation circulation function, it can comprise economically.

  In this way, in the configuration that does not have the ventilation circulation function, since it has a simple structure, a part that feels cold or pain, for example, a foot, a knee, and a waist, each one, a plurality of A heating means may be arranged. In the example shown in FIG. 17, the second layer 4 is provided below the upper layer (first layer 3) constituted by the frame member 7 made of hard cotton or the like in a frame shape and the breathable fiber layer 8. Although provided, other integration methods may be used, such as laminating the upper layer in a planar shape without forming the frame shape.

1 is an exploded view schematically showing a cross-sectional configuration of a temperature control mattress according to a first embodiment of the present invention together with a body lying on the mattress. It is a typical disassembled perspective view which shows schematic structure of the temperature control mattress of the example of 1st Embodiment. It is typical sectional drawing for demonstrating the effect of the ventilation control means in the temperature control mattress of the example of 1st Embodiment. The perspective view which shows the other example of the ventilation control means applied to the temperature control mattress of this invention, and sectional drawing which shows typically the flow of the air in a breathable fiber layer at the time of providing the ventilation control means of each example It is. It is explanatory drawing which shows an example of the unit for air circulation provided in the example of 1st Embodiment. It is a typical perspective exploded explanatory view showing a 2nd embodiment of a temperature control mattress concerning the present invention. It is sectional drawing which shows typically the ventilation structure in the temperature control mattress of 2nd Embodiment. It is the longitudinal cross-sectional view (a), horizontal cross-sectional view (b), and operation | movement explanatory drawing (c) which show typically the structure of 3rd Embodiment of the temperature control mattress which concerns on this invention. It is a perspective exploded view which shows typically the composition of the ventilation regulation means provided in the modification of the example of the 3rd embodiment. It is typical sectional explanatory drawing which shows the air exchange structure provided in the 4th Example of the temperature control mattress which concerns on this invention. It is typical cross-sectional explanatory drawing which shows the air exchange structure in the modification of the example of 4th Embodiment. It is typical disassembly explanatory drawing which shows the structure of 5th Example of the temperature control mattress which concerns on this invention. It is typical sectional explanatory drawing which shows operation | movement of the example of 5th Embodiment. It is typical disassembly explanatory drawing which shows the structure of the 6th Example of the temperature control mattress which concerns on this invention. It is typical disassembly explanatory drawing which shows an example of operation | movement of the example of 6th Embodiment with sectional drawing. It is explanatory drawing which shows the structure and operation | movement of the temperature control unit in the temperature control mattress of 6th Embodiment. They are a typical longitudinal cross-sectional view (a) and a cross-sectional view (b) for demonstrating the example of the mattress formed by providing a heating means in the foot | leg part position of the body lying on a mattress. It is the model and graph for demonstrating the effect which provides a heater in the heat exchange element in the unit for air circulation provided in a temperature control mattress. It is a typical perspective view for demonstrating an example of the temperature control mattress proposed conventionally.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Temperature control mattress 2 Temperature control unit 8 Venting fiber layer 9 Body 12 Air passage 16 Air circulation means 32 Heating means 35a 1st switching valve 35b 2nd switching valve 42a, 42b Opening part 48 Blasting circulation switching means 49 Planar shape Ventilation means 60 Air circulation passage 61 Surface side passage 68 Air outlet portion 69 Air introduction portion 71 Mattress body 80 Breathable fiber layer

Claims (8)

  An air circulation passage that circulates air is formed in the mattress with a surface-side passage formed along the surface side of the region where the person of the mattress lies as a part of the passage, and the air-permeable passage is formed in the surface-side passage. A fiber layer is provided, and an airtight cover member is provided to cover the upper side of the breathable fiber layer, and the cover member forms a passage wall on the upper side of the surface side passage, and the body layer lying on the mattress On the bottom wall side of the surface-side passage corresponding to at least one partial position of the waist and the foot, the bottom wall surface of the surface-side passage is raised to reduce the vertical width of the surface-side passage. A temperature control mattress comprising air flow adjusting means for converting the direction of air passing through the surface side passage upward and causing the air flow to collide with a cover member on the upper wall surface of the air circulation passage.   The breathable fiber layer that forms a portion corresponding to the lower side of at least one of the waist and foot portions of the body on the mattress has a lower hardness than the breathable fiber layer of the other portion. The temperature control mattress according to claim 1, wherein   Heating means for increasing the temperature of air flowing through the surface side passage is provided on the bottom wall side of the surface side passage corresponding to the position of at least one of the waist and feet of the body lying on the mattress, The temperature control mattress according to claim 1 or 2, wherein the heating means also serves as a ventilation control means.   An air outlet for leading air out from the air circulation passage and an air introduction portion for introducing outside air into the air circulation passage, and the outside air from the air introduction portion while circulating the air in the air circulation passage 2. An air exchange function for exchanging the air in the air circulation passage and the outside air by introducing the air and conducting the air from the air lead-out portion to the outside. The temperature control mattress according to claim 2 or claim 3.   A communication portion between the air circulation passage and the air introduction portion is provided with a first switching valve that switches whether or not outside air is introduced from the air introduction portion, and the communication portion between the air circulation passage and the air outlet portion includes the first switching valve. A second switching valve for switching whether or not air is derived from the air deriving unit is provided, and controls the first and second switching valves to introduce air while circulating air in the air circulation passage. And an operation switching control means for switching between the operation of exchanging the air in the air circulation passage and the outside air and the operation of circulating the air in the air circulation passage without introducing and deriving the air. The temperature-control mattress according to claim 4.   Humidity detection means for detecting the humidity of the air in the air circulation passage, and when the detected humidity detected by the humidity detection means exceeds a preset threshold value, the air circulation passage is operated by the operation switching control means. 6. The temperature adjusting mattress according to claim 5, further comprising humidity adjusting means for adjusting the humidity of the air in the air circulation passage to be reduced by exchanging the inside air with outside air.   The cover member is formed with openings in the air flow direction through the surface side passage with a space therebetween, and the opening formed on the upstream side of the air flow through the surface side passage forms an air outlet portion. An opening formed on the downstream side of the air flow forms an air introduction portion, and an airtight lid member is detachably provided above the opening formation region of the cover member. The temperature control mattress according to claim 4, wherein:   Temperature adjusting means for adjusting the temperature of the air circulating in the air circulation passage is provided, the temperature adjusting means has a thermoelectric conversion element and a heater, and the heater is driven to form condensation in the temperature adjusting means. The temperature control mattress according to any one of claims 1 to 7, further comprising a heater driving unit that suppresses the occurrence of the above.

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