JP2001231661A - Hot-water heating device for bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the effects of keeping one's head cool and feet warm by making a temperature difference between the feet and head part of the body and to prevent the occurrence of a temperate difference between the right and left of the body. SOLUTION: In this hot-water heating device 2 for a bed, a bed upper-surface material 5 is constituted of a hot-water heating panel 4 provided with a hot-water passage 7 on the surface side. In the hot-water passage 7, a plurality of widthwise long passage parts 7a extended in the width direction B of a bed 1 and formed at intervals in the lengthwise direction A of the bed 1 and connecting passage parts 7b to connect the widthwise long passage parts 7a to one another are continuously formed. Hot water enters on the side of the widthwise long passage part 7a located on the foot side of the bed 1 and is discharged on the side of the widthwise long passage part 7a located on the head-part side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water heating apparatus for a bed.

[0002]

2. Description of the Related Art In the current bed market, typical examples of bed heating include a cooling / heating bed disclosed in Japanese Patent Application Laid-Open No. 9-187349 and an electric cooling / heating water circulation mattress disclosed in Japanese Utility Model Registration No. 3029094. I have. In these conventional examples, a bent circulation hot water channel extending in a direction parallel to the body is separated from one end in the width direction of the bed to the other end, and a bent circulation hot water channel located at one end in the width direction of the bed is provided. We put warm water in and do heating.

[0003]

However, in the above-mentioned prior art, the bent circulation hot water passage for passing hot water extends in a direction parallel to the body, so that the head side and the foot side of the body are not connected. Was heated in the same way, and it was not possible to obtain the head cold foot heat effect which is considered to be good for the body. In addition, in the related art, the temperature at one end in the width direction of the bed is high, and the temperature at the other end is low.

The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to produce a temperature difference between the feet and the head of the body so that the temperature of the head can be reduced. Another object of the present invention is to provide a hot water heating apparatus for a bed that can provide a comfortable bed heating system that can obtain an effect and that does not cause a temperature difference between the right and left sides of the body. Another object of the present invention is to provide a hot water heating apparatus for a bed which can create a temperature difference between a foot side and a head side while ensuring uniformity of the surface and preventing an increase in the number of surface materials. However, an object of the present invention is to provide a hot water heating apparatus for a bed in which a futon can be hardly displaced, heating of the upper body side and lower body side can be performed individually, and further, a rise in the temperature of supplied hot water can be suppressed.

[0005]

According to the present invention, there is provided a bed for a bed in which a hot water heating panel provided with a hot water passage on the front side constitutes a bed upper surface member. A hot water heating device, wherein the hot water passage
Is formed in such a manner that a plurality of horizontally long passage portions 7a extending along the width direction B of the bed 1 and spaced apart in the longitudinal direction A of the bed 1 and communication passage portions 7b for connecting the respective horizontally long passage portions 7a to one another are formed continuously. In addition, the horizontal passage 7a located on the foot side of the bed 1 is used as a hot water inlet side, and the horizontal passage 7a located on the head side is used as a warm water outlet side. By doing so, it is possible to create a temperature difference between the feet and the head of the body so that the temperature rises at the feet side of the body and the temperature decreases at the head side, hot water heating with head cold feet heat effect, Further, by extending the horizontally long passage portion 7a in the width direction B of the bed 1, it is possible to simultaneously prevent a temperature difference between the left and right sides of the body.

Further, the present invention relates to a bed hot water heating apparatus in which a bed upper surface member 5 is constituted by a hot water heating panel 4 provided with a hot water passage 7 on the front surface side. And a plurality of panel units 4A and 4B divided in the vertical direction A, and the temperature of the panel unit 4A on the lower body side of the body is higher than the panel unit 4B on the upper body side.
Panel 4A, 4B
It is characterized by providing a control unit 35 for controlling the surface temperature of the device. With this configuration, it is possible to individually heat the upper body side and the lower body side, and perform heating according to the user's preference. It is easy to clarify the temperature difference on the surface, and in particular, it is possible to easily obtain the head cold foot heat effect.

The present invention also relates to a bed hot water heating apparatus in which a hot water heating panel 4 provided with a hot water passage 7 on the surface side constitutes a bed upper surface member 5, wherein the hot water passage 7 is provided in the bed 1 A plurality of horizontally long passages 7a extending along the width direction B of the bed 1 and being spaced apart in the longitudinal direction A of the bed 1 and communication passages 7b for communicating the respective horizontally long passages 7a with each other are formed in a row. The passage 7 is divided into a foot-side hot water passage and a head-side hot water passage, and the temperature of the hot water supplied to the foot-side hot water passage is changed to the temperature of the hot water supplied to the head-side hot water passage. This configuration is characterized in that it is higher than the above, and with this configuration, one piece can be used as the surface material of the hot water heating panel 4, thereby ensuring the uniformity of the surface material and reducing the quantity of the surface material. Steps to prevent increase It is possible to make the temperature difference between the head side.

[0008] The control unit 35 includes a panel unit 4.
It is preferable to control the temperature of the hot water supplied to the hot water passages 7A, 4B.
The temperature of the hot water supplied to the upper body side panel 4B
By increasing the temperature of the hot water supplied to the head, it is possible to prevent erroneous use such as heating only the head.

The surface material of the hot water heating panel 4 is
Preferably, in this case, the hot water heating panel 4
Can be further reduced in weight and thickness, and the futon can be prevented from being shifted by the surface of the tatami mat 6.

It is preferable that the control unit 35 controls the upper body side panel unit 4B so as not to be in the on state where the hot water is supplied when the lower body side panel unit 4A is in the off state where hot water is not supplied. In this case, the surface temperature of the upper body side panel 4B can always be set to be equal to or lower than the surface temperature of the lower body side panel 4A, and erroneous use in which only the upper body side panel 4B is warmed can be reliably prevented.

Heat for exchanging heat between the return pipe 10 for returning the hot water from the hot water heating panel 4 to the heat source unit 8 and the forward pipe 9 for supplying the hot water from the heat source unit 8 to the hot water heating panel 4. It is preferable to provide an exchanger 11, in which case the temperature of the hot water supplied from the heat source device 8 to the hot water heating panel 4 is reduced to some extent by utilizing heat exchange with the hot water returned from the hot water heating panel 4. be able to.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

FIG. 1 is an exploded perspective view of a bed 1 according to the present embodiment. A drawer storage box 12 for storing drawers to be taken in and out from the side of the bed 1 is provided in one half of the base frame 2 having a rectangular shape in a plan view, and a control panel 14 described later is provided in the other half. Is provided. Both side portions of the control panel 14 are supported by a pair of left and right support protrusions 16 (FIG. 6) protruding from surfaces facing the side plate of the base frame 2 and the drawer storage box 12. The upper surface opening of the hollow portion 15 is covered with a lid plate 13 which is attached substantially flush with the upper surface of the drawer storage box 12.
The upper surfaces of the lid plate 13 and the drawer storage box 12 are each lower than the upper end of the base frame 2, and a heat insulating material layer 17 (FIG. 3) extends from the upper surface of the lid plate 13 to the upper surface of the drawer storage box 12. The hot water heating panel 4 is laid on the heat insulating material layer 17. The cover plate 13 is provided with a support projection 16a.
(FIG. 6) is detachably mounted on the control panel 14 so that maintenance of the control box 34 installed on the control panel 14 or the piping portion can be easily performed. In order to facilitate opening and closing operations of the cover plate 13, it is desirable to provide a finger hanging recess on the end surface of the cover plate 13. It is also desirable to provide a similar finger recess on the end face of the hot water heating panel 4.

As shown in FIGS. 3 and 4, the heat-insulating material layer 17 surrounds the outer periphery of the heat-insulating material 18 with a frame material 19, and
The plywood 20 is attached to the entire lower surface of the frame 8 and the frame member 19. On the upper surface of the heat insulating material layer 17, the hot water heating panel 4 which becomes the bed upper surface material 5 is laid. The hot water heating panel 4 is configured by stacking tatami mats 6 on the surface of a panel base material 4a having a hot water passage 7 described later. In the example shown in FIG. 3, the thickness d1 of the plywood 20 is 9 mm, the thickness d2 of the heat insulating material 18 is 15 mm, and the thickness d3 of the panel base material 4a is 11.
Although 5 mm and the thickness d4 of the tatami 6 are set to 10 mm, of course, the values are not limited to these values.

In this embodiment, the hot water heating panel 4 is composed of two panel units 4A and 4B divided in the vertical direction A of the bed 1, as shown in FIGS. . The two panels 4A and 4B have the same structure, size,
The panel unit 4A on the lower body side of the body is disposed on the foot side of the bed 1 and the panel unit 4B on the upper body side
Are arranged on the head side of the bed 1.

As shown in FIG. 5, each of the panels 4A and 4B has a hot water passage 7 formed by digging an upper surface of a panel base material 4a into a concave groove. Alternatively, a hot water pipe 21 made of resin is embedded. The hot water pipe 21 of this example is embedded in the hot water passage 7 so that the upper surface thereof is substantially flush with the upper surface of the panel base material 4a. It is stored in the passage 7 well. The material of the panel substrate 4a is not particularly limited, and may be, for example, a relatively hard material such as plywood or a relatively soft material that can bend slightly.

The hot water passage 7 is composed of the panels 4A and 4B alone.
It is provided for each. In the example shown in FIG. 2, the hot water passage 7 extends along the width direction B of the bed 1 and connects the plurality of horizontally long passage portions 7a and the respective horizontally long passage portions 7a which are separated in the longitudinal direction A of the bed 1 to each other. The communication passage portion 7b is formed in a meandering shape. Further, the horizontally long passage portion 7a located at the foot side of the bed 1 serves as the inlet side of the hot water, and the horizontally long passage portion 7a located at the head side serves as the outlet side of the warm water.

One end of a connection pipe 21a is connected to the inlet side of the warm water of the lower body side panel 4A (also the upper body side panel 4B), and one end of the connection pipe 21b is connected to the outlet of the warm water. Is connected. The other end of the connection pipe 21a is connected to the hot water header 22, the resin pipe 2 shown in FIG.
4 (or a metal tube), a joint member 26, a rubber tube 2
7, the other end of the connection pipe 21b is connected to the return-side hot water header 2 shown in FIG.
3. Resin tube 25 (or metal tube), joint member 2
6. Connected to a hot water plug 29 via a rubber tube 28.

As shown in FIG. 7B, the joint member 26 has an uneven cylindrical portion 26b into which a resin tube 24 (or 25) is fitted, and a straight cylindrical portion into which a rubber tube 27 (or 28) is fitted. 26a, and an uneven cylindrical portion 26b
The resin tube 24 (or 25) does not easily come off because it has an uneven surface. Further, the resin pipe 24
(Or 25) and the rubber tube 27 (or 28) are more difficult to come off by attaching a stop band. Therefore,
Even if it is a tubular body made of a different material such as the resin tube 24 and the rubber tube 27, the structure can be easily and reliably connected.

The outgoing-side hot water header 22 and the returning-side hot water header 23 are installed on the control panel 14 as shown in FIG. Between one end 14a of the control panel 14 and the end plate 2a of the base frame 2 of the bed 1,
An opening 30 that opens downward is provided, and rubber tubes 27 and 28 whose ends are connected to the hot water plug 29 are drawn out of the bed 1 from the opening 30.

The hot water plug 29 can be freely inserted into and removed from an outlet of a hot water supply / discharge box 31 to which the forward pipe 9 and the return pipe 10 from the heat source unit 8 shown in FIG. 2 are connected. By inserting the hot water plug 29 into the outlet, the hot water from the outward pipe 9 is
Through the rubber pipe 27 → the joint member 26 → the resin pipe 24 → the outgoing-side hot water header 22 → the connection pipe 21a to be supplied to the foot side of the panel unit 4A (4B),
In addition, warm water from the head side of the panel unit 4A (4B)
Connection pipe 21b → Return side hot water header 23 → Resin pipe 2
5 → joint member 26 → rubber pipe 28 → return to return pipe 10 via hot water plug 29. This hot water circulation circuit is formed for each of the lower panel 4A and the upper panel 4B.

On the other hand, as shown in FIG. 2, the bed remote controller 33 includes a lower body side operation switch SW1 and an upper body side operation switch SW2.
2 signal lines 32a and 32b are connected to a control unit 35 in a control box 34 installed on the control panel 14,
Furthermore, it is connected to the signal line 32d on the heat source device 8 side via the signal line 32c and the hot water plug 29. Then, the lower body side operation switch SW1 (or the upper body side operation switch SW1)
When 2) is operated, the operation signal is input to the control unit 35, and the operation signal from the control unit 35 is also input to the heat source device 8. The control unit 35 operates the heat source unit 8, and according to the temperature setting of the bed remote controller 33, the control unit 35 energizes the lower body side thermal valve 37 and the upper body side thermal valve 38, and the lower body side panel alone 4A side incoming connection pipe 21a and upper body side panel unit 4B side incoming side connection pipe 21a
Are respectively controlled to open and close.

Thus, a plurality of horizontally long passages 7a extending along the width direction B of the bed 1 are spaced apart in the longitudinal direction A of the bed 1, and the horizontally long passages 7a communicate with each other via the communication passages 7b. As a result, the hot water passage 7 was formed, hot water was supplied from the horizontally long passage portion 7a located on the foot side of the bed 1, and the hot water was returned from the horizontally long passage portion 7a located on the head side.
A temperature difference can be created so that the temperature increases at the foot side of the body and decreases at the head side, so that hot water heating with a head and foot heat effect can be performed. In other words, the temperature is the highest at the foot side of the body, and the foot side to the head side (arrow A ′ in FIG. 2).
(In the direction indicated by), the temperature gradually decreases, so that there is no problem that the head and the whole body are warmed in the same manner. Since it extends in a right angle direction, there is no problem that a temperature difference occurs between the right and left sides of the body. Further, the use of the heat operated valves 37 and 38 makes the switching of the valves quiet and does not hinder sleep. Also, since it is a bed type, it is easy to sleep and get up, and it is easy to use especially for the elderly and physically handicapped. In addition, it has a futon drying effect and an insect repellent effect such as mites by the heat of hot water heating. Furthermore, it is desirable to provide a source of electromagnetic waves and noise such as a pump in a place other than the bed 1, for example, in an outdoor heat source device, etc. With such a configuration, it is possible to reduce the influence of electromagnetic waves, noise, vibration and the like indoors. That can be lost,
It is particularly beneficial because it can prevent adverse effects on the human body while sleeping.

Further, since the surface material of the hot water heating panel 4 is constituted by the tatami mats 6, the weight and thickness can be reduced, and since the tatami mats 6 are provided, the futon is hardly displaced and the usability is improved. Further, since the panel is divided into a plurality of panel units 4A and 4B, the panel units 4A and 4B are reduced in weight to facilitate assembly, improve workability, and can be easily applied to a folding bed.

Further, the hot water heating panel 4 comprises a lower body side panel unit 4A and an upper body side panel unit 4B,
Since the temperature is controlled for each of the panels 4A and 4B, the upper body and the lower body can be individually heated.
Here, when the set temperature of the remote control is the same on the upper body side and the lower body side, the control section 35 supplies electricity to the lower body side thermal valve 37 and the upper body side thermal valve 38 respectively, and both thermal valves 3
7, 38 are opened and closed simultaneously. When open, the hot water in the hot water passage 7 flows and heat from the heat source unit 8 is supplied to the hot water heating panel 4 (panels 4A and 4B), and when closed, the hot water flow in the hot water passage 7 stops and the heat from the heat source unit 8 Heat supply stops. That is, the temperatures of the panel units 4A and 4B are adjusted by adjusting the open and close times of the thermal valves 37 and 38.

If the set temperature of the remote controller is different between the upper body side and the lower body side, the control section 35 supplies electricity to the lower body side thermal valve 37 and the upper body side thermal valve 38 so that each thermal valve 3
7, 38 are opened and closed at different times. Thereby, the temperature of the lower panel 4B is higher than the temperature of the upper panel 4A.
The surface temperature of each panel 4A, 4B can be controlled. In addition to the thermal valves 37 and 38, the flow rate from the heat source unit 8 to the hot water passage 7 may be adjusted by a flow rate adjusting valve to adjust the temperature of the panel units 4A and 4B.

Further, when the lower body side panel unit 4A is in an off state in which hot water is not supplied, the upper body side panel unit 4B is controlled so as not to be in an on state in which hot water is supplied, whereby the upper body side panel unit 4B is controlled. Surface temperature of the lower body side panel 4A can always be set to be lower than the surface temperature of the lower body side panel 4A, and the misuse of heating only the upper body side panel 4B alone can be reliably prevented. Become.

FIG. 2 shows a means for preventing the temperature of the hot water entering the panels 4A and 4B from becoming too high.
As shown in FIG. 3, hot water from the hot water heating panel 4 is supplied to the heat source unit 8.
It is desirable to provide a heat exchanger 11 for exchanging heat between the return pipe 10 returning to the above and the forward pipe 9 supplying hot water from the heat source unit 8 to the hot water heating panel 4. Thereby, the temperature of the hot water supplied from the heat source device 8 to the hot water heating panel 4 can be reduced to some extent by utilizing the heat exchange with the hot water returned from the hot water heating panel 4 to the heat source device 8. The installation place of the heat exchanger 11 is not limited to the example of FIG.

In this embodiment, since the hot water outlet type is used, the bed 1 can be easily moved by removing the hot water plug 29 from the outlet portion of the hot water supply / discharge box 31 when cleaning the bottom and surroundings of the bed 1. Become. That is, there is an advantage that the supply of the hot water from the heat source unit 8 is facilitated and the bed 1 can be easily moved.

Next, modified examples of the hot water passage 7 will be described with reference to FIGS.

FIG. 8 shows that the inlet side A of one hot water passage 7 of the hot water heating panel 4 is moved to the foot side, the outlet side B is moved to the head side, and the inlet side A and the outlet side B are connected to the hot water heating panel. FIG. 9 shows a case in which the hot water inlet side is provided on one side of the hot water heating panel 4 and the hot water outlet side is provided on the other side opposite to the one side. Shows the case where As a modification of FIG. 9, the outlet side of the hot water may be provided on one side of the hot water heating panel 4 and the inlet side of the hot water may be provided on the other side. In each of the modified examples shown in FIGS. 8, 9 and 9, it is possible to set the temperature on the foot side higher than the temperature on the head side by adding warm water from the foot side.

FIG. 10 shows that the inlet side a and the outlet side b of one hot water passage 7 are arranged close to the head side for each of the lower and upper body side panels 4A and 4B, and the panels from the inlet side a. The warm water is poured to the feet and then returned to the head to return the warm water from the outlet. At this time, by making the temperature of the hot water supplied to the lower body side panel unit 4A higher than the temperature of the hot water supplied to the upper body side panel unit 4B, the surface temperature of the lower body side panel unit 4A is raised to the upper body side. Can be higher than the surface temperature of the panel unit 4B.

FIG. 11 shows a plurality of (for example, three) hot water passages 7 formed in the hot water heating panel 4 in parallel with each other in a meandering shape, and each of the inlet sides a of the plurality of hot water passages 7 is provided on the foot side. This shows a case where each outlet side is moved to the head side, and the temperature of the foot side of the hot water heating panel 4 is quickly raised by simultaneously supplying hot water from the foot to the three hot water passages 7. Can be.

FIG. 12 shows a state in which the header portion 70 is arranged close to the foot side of the hot water heating panel 4 and the two hot water passages 7 are provided.
Shows the case formed in parallel with each other and in a meandering shape, the warm water introduced from the inlet side a is flowed to the foot side via the header portion 70, further flowed to the head side, and then returned to the foot side. I have. In addition, by dividing the hot water supplied through the header portion 70 into the two hot water passages 7, a large area on the foot side can be quickly raised. Note that the hot water inlet side A and outlet side B are not specified in the example of FIG.

FIG. 13 shows a single meandering loop-shaped hot water passage 7 formed in each of a plurality of (for example, four) panel units 4A to 4D, and an inlet 50 and an outlet 50 in the middle of each hot water passage 7 respectively. 51 are provided. Inlet connection pipe 21
The hot water from a is supplied into the hot water passage 7 from the inlet 50 of the panel unit 4A located on the foot side. This hot water is
As shown by arrows 3 and 3 in FIG. 3, the water passes through the meandering loop-shaped hot water passage 7, enters the inlet 50 of the adjacent hot water passage 7 of the panel 4C through the feed pipe 21c from the outlet 51, and similarly outputs the outlet 51. Through the adjacent panel 4D and finally the hot water passage 7 of the panel 4B located on the head side.
Of the connecting pipe 21 from the outlet 51
b and is returned to the heat source device. Thereby, the temperature of the hot water can be gradually reduced so that the temperature of the panel 4A on the foot side is the highest and the temperature of the panel 4B on the head side is the lowest. The pipes 21a, 21b, and 21c are provided on the lower surfaces of the panels 4A to 4D.

In each of the above embodiments, the hot water passage 7 is formed in a meandering shape in plan view. However, the shape of the hot water passage 7 is not limited to a meandering shape, and may be, for example, as shown in FIG. It may be formed in the following.

The hot water passages 7 shown in FIGS. 8 to 13 and 16 can be applied to the case where the hot water heating panel 4 is divided into a plurality of panels. Of these, each aspect of the hot water passage 7 in FIGS. 8, 9, 11, and 16 can be applied to the case where the number of the hot water heating panels 4 is one. Hot water heating panel 4
FIG. 14 and FIG. 15 show typical examples of the hot water passage when there is only one sheet.
(B). In FIG. 14, of the one meandering hot water passage 7, the horizontally long passage portion 7 a located on the foot side is the inlet side of the hot water, and the horizontally long passage portion 7 a located on the head side is the outlet side of the hot water. By putting warm water from the entrance side,
A temperature difference can be created so that the temperature on the foot side is high and the temperature on the head side is low. On the other hand, in FIG.
In this case, the hot water passages 7 are independently arranged on the foot side, the head side, and the middle side, and hot water having a temperature difference is supplied to each of the hot water passages 7. A temperature difference can be created so that the temperature is high and the temperature on the head side is low.

As another example, the hot water heating panel 4 is not divided into a plurality of panel units 4A, 4B,. And the temperature of the hot water supplied to the foot-side hot water passage may be made higher than the temperature of the hot water supplied to the head-side hot water passage. is there. One example is shown in FIG. In FIG. 17, 2
The figure shows a case where one panel base material 4a and one tatami mat 6 are combined, and the temperature of hot water supplied to the hot water passage in the panel 4A on the foot side is changed to the temperature in the panel 4B on the head side. By setting the temperature higher than the temperature of the hot water supplied to the hot water passage, a temperature difference can be created between the foot side and the head side. Moreover, the surface material of the hot water heating panel is 1
Since two tatami mats 6 can be used, there is an advantage that no step is formed on the surface of the tatami mats 6, the surface uniformity can be ensured and the number of tatami mats 6 can be prevented from increasing. Note that FIG.
In the above, the case where the panel base material 4a is divided into two pieces has been described. For example, as shown in FIG.
Is divided into three parts, into a panel 4A on the foot side, a panel 4B on the head side, and a panel 4C on the intermediate side, respectively.
The meandering hot water passage 7 may be formed in a plan view.

[0039]

As described above, according to the first aspect of the present invention, there is provided a hot water heating apparatus for a bed in which a hot water heating panel provided with a hot water passage on the surface side constitutes a bed upper surface material. The hot water passage is formed by connecting a plurality of horizontally long passage portions extending along the width direction of the bed and being separated in the longitudinal direction of the bed and a communication passage portion for communicating the respective horizontally long passage portions with each other, Since the horizontal passage located at the foot of the bed is the hot water inlet and the horizontal passage at the head is the hot water outlet, the temperature rises at the foot of the body and the temperature at the head By lowering the temperature difference between the feet and head of the body, it is possible to perform hot water heating with a head cold foot heat effect, and furthermore, by extending the horizontally long passage in the width direction of the bed, Temperature difference between the left and right body Rather, it is those that can provide a comfortable bed heating system.

Further, the invention according to claim 2 is a hot water heating apparatus for a bed in which a hot water heating panel provided with a hot water passage on a front surface side constitutes a bed upper surface material.
The hot water heating panel is composed of a plurality of panels divided in the vertical direction of the bed, and the temperature of the lower body side panel is higher than the temperature of the upper body side panel. Since the control unit that controls the surface temperature is provided, it is possible to individually heat the upper body side and the lower body side, it is possible to heat according to the user's preference, it is easy to clarify the temperature difference on the panel surface, and the head cold foot heat effect A certain hot water heating can be easily realized. Further, by dividing the hot water heating panel into a plurality of panels alone, the weight of the panels alone can be reduced to facilitate assembly and improve workability.

According to a third aspect of the present invention, there is provided a hot water heating apparatus for a bed, wherein a hot water heating panel having a hot water passage provided on a front surface side constitutes a bed upper surface material. A plurality of horizontal passages extending along the width direction and separated in the vertical direction of the bed and a communication passage connecting the horizontal passages to each other are formed in series, and the hot water passage is a foot-side hot water passage. Because the temperature of the hot water supplied to the foot-side hot water passage is higher than the temperature of the hot water supplied to the head-side hot water passage, the hot water heating is performed. A large-sized panel can be used as the panel, so that there is no step due to the division on the surface of the hot water heating panel, and the hot water passage is divided into the foot side and the head side so that one surface material of the hot water heating panel can be used. object Available, thereby while achieving an increase prevention of the quantities in flush with securing and surface material of the surface material,
A temperature difference can be created between the foot side and the head side, and a more comfortable bed heating system can be realized.

According to a fourth aspect of the present invention, in addition to the effect of the second aspect, the control section controls the temperature of the hot water supplied into the hot water passage of each panel alone, so that the lower body side panel alone By setting the temperature of the hot water supplied to the upper body to be higher than the temperature of the hot water supplied to the panel on the upper body side, erroneous use such as heating only the head can be prevented.

According to a fifth aspect of the present invention, in addition to the effects of the first, second, or third aspects, the surface material of the hot water heating panel is formed of tatami mats, so that the hot water heating panel is lighter. It is possible to reduce the size and thickness of the futon and to prevent the futon from shifting due to the tatami mat surface, thereby improving usability.

According to a sixth aspect of the present invention, in addition to the effect of the second or fourth aspect, when the lower body side panel alone is in the off state in which hot water is not supplied, the upper body side panel single unit is controlled. Control so that the hot water is not supplied to the ON state, so that the surface temperature of the upper body side panel alone can always be set to be lower than the surface temperature of the lower body side panel alone, and only the upper body side panel is heated. Misuse can be reliably prevented, making it easier to use, especially for the elderly.

According to the seventh aspect of the present invention, in addition to the effect of the first, second or third aspect, the return pipe for returning hot water from the hot water heating panel to the heat source unit and the hot water from the heat source unit are provided. Is provided with a heat exchanger for performing heat exchange with the forward pipe that supplies the hot water heating panel to the hot water heating panel. The temperature of the hot water supplied to the hot water heating panel can be lowered to some extent, and the surface temperature of the hot water heating panel can be prevented from rising too much.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a flow state of hot water and a wiring state of the same.

FIG. 3 is an explanatory diagram of a hot water heating panel and a heat insulating material layer according to the first embodiment.

FIG. 4 is an exploded perspective view of the heat insulating material layer.

FIG. 5 is a cross-sectional view of the same hot water heating panel.

FIG. 6 is an explanatory diagram of the state of attachment of the control panel and the cover plate as viewed from the line MM in FIG. 1;

7A is a plan view of FIG. 6, and FIG. 7B is an explanatory view of a joint member.

FIG. 8 is an explanatory diagram of a hot water passage of the panel alone.

FIG. 9 is an explanatory view of a modification of the hot water passage of the above.

FIG. 10 is an explanatory view of another modification of the hot water passage according to the first embodiment.

FIG. 11 is an explanatory view of still another modified example of the above hot water passage.

FIG. 12A is an explanatory view of still another modified example of the same hot water passage, and FIG. 12B is an enlarged view of a header portion.

FIG. 13 shows still another modification of the above hot water passage.
(A) is a plan view and (b) is a side view.

FIG. 14 is an explanatory view of still another modification of the hot water passage of the above.

FIG. 15A is an explanatory diagram in the case where the panel substrate is divided into three sheets, and FIG. 15B is an explanatory diagram in the case where the hot water passage in one panel substrate is divided into three.

FIG. 16 is an explanatory view of still another modified example of the above hot water passage.

FIG. 17 is an explanatory view of still another modification of the above-described hot water heating panel.

[Explanation of symbols]

 1 Bed 3 Hot water heating device for bed 4 Hot water heating panel 4A Lower body side panel unit 4B Upper body side panel unit 5 Bed upper surface material 6 Tatami 7 Hot water passage 7a Horizontal passage 7b Communication passage 8 Heat source device 11 Heat exchanger 29 Heat water Plug A Vertical direction B Width direction

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[Procedure amendment]

[Submission date] April 10, 2000 (2004.1.
0)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 2

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction contents]

If the set temperature of the remote controller is different between the upper body side and the lower body side, the control section 35 supplies electricity to the lower body side thermal valve 37 and the upper body side thermal valve 38 so that each thermal valve 3
7, 38 are opened and closed at different times. Thereby, the temperature of the lower panel 4A is higher than the temperature of the upper panel 4B .
The surface temperature of each panel 4A, 4B can be controlled. In addition to the thermal valves 37 and 38, the flow rate from the heat source unit 8 to the hot water passage 7 may be adjusted by a flow rate adjusting valve to adjust the temperature of the panel units 4A and 4B.

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG.

Claims (7)

[Claims] 1. A bed hot water heating device in which a bed upper surface material is constituted by a hot water heating panel provided with a hot water passage on a front surface side, wherein the hot water passage extends along a width direction of the bed; A plurality of horizontally long passages separated in the vertical direction of the bed and a communication passage for connecting the horizontally long passages to each other are formed in a row, and the horizontally long passage located at the foot side of the bed is connected to a hot water inlet side. A hot water heating device for a bed, characterized in that the horizontal passage portion located on the head side is a hot water outlet side. 2. A bed hot water heating apparatus in which a bed upper surface material is constituted by a hot water heating panel provided with a hot water passage on a front surface side, wherein the plurality of hot water heating panels are divided in a vertical direction of the bed. And a control unit that controls the surface temperature of each panel unit so that the temperature of the panel unit on the upper body side is higher than the temperature of the panel unit on the lower body side. Hot water heater for bed. 3. A bed hot water heating device in which a bed upper surface material is constituted by a hot water heating panel provided with a hot water passage on a front surface side, wherein the hot water passage extends along a width direction of the bed; A plurality of horizontally long passages separated in the longitudinal direction of the bed and a communication passage for connecting the horizontally long passages to each other are formed in series, and the hot water passage is a foot-side hot water passage portion and a head-side hot water passage. Divided into aisles and
A hot water heating apparatus for a bed, wherein a temperature of hot water supplied to a foot-side hot water passage is higher than a temperature of hot water supplied to a head-side hot water passage. 4. The hot water heating apparatus for a bed according to claim 2, wherein the control section controls the temperature of the hot water supplied into the hot water passage of each panel alone. 5. The hot water heating apparatus for a bed according to claim 1, wherein the surface material of the hot water heating panel is a tatami mat. 6. The control unit controls the upper body side panel unit so as not to be in the on state where hot water is supplied when the lower body side panel unit is in the off state where hot water is not supplied. The hot water heating device for a bed according to claim 2 or 4. 7. A heat exchanger for performing heat exchange between a return pipe for returning hot water from the hot water heating panel to the heat source unit and an outward pipe for supplying hot water from the heat source unit to the hot water heating panel. The hot water heating apparatus for a bed according to claim 1, wherein the heating apparatus is a bed.