JPH08205964A - Warming chair - Google Patents

Abstract

PURPOSE: To use a midnight power profitably by designing a chair so as not to impair a cushioning function provided in a chair itself and simultaneously employing a regenerative system by remarking such characteristic that phase change occurs between a solid phase and a liquid phase in a latent heat regenera tor and effectively using such characteristic. CONSTITUTION: Such constitution is employed that the latent heat regenerator W is arranged in the inside of the chair S so as to face with a seat face 1, and also, a heating means H in which the phase change from the solid phase to the liquid phase in the latent regenerator W occurs is installed in the lower part of the latent heat regenerator W. An electric heater is suitable for the heating means H.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage type heating chair in which a heat storage body is incorporated in a chair, and in particular, as a heat storage body, the characteristics of a latent heat storage body that changes in phase between a solid phase and a liquid phase are utilized. However, the present invention relates to a heating chair designed so as not to impair the cushioning function of the chair itself.

[0002]

BACKGROUND OF THE INVENTION In the air conditioning of large spaces such as stadiums and gymnasiums, particularly when heating is performed, conventionally, a method has been adopted in which warm air is blown from a portion such as a floor or a wall surface. However, in this method, since the space without a person is heated, it is wasteful and inefficient.
In particular, in the case of heating, warm air moves upward, and the larger the space, the lower the efficiency. In addition, the method of blowing hot air from the floor is not a preferable heating method because dust and dirt are blown up. Further, as in an indoor ice skating rink, there is a problem in that it cannot be used because it may affect the competition due to a rise in room temperature due to warm air.

[0003]

[Measures to be Solved by the Invention] As a measure against this point,
For example, an electric wire heater is embedded in the seat part of the chair to heat the chair by directly heating it.
There is also a so-called local heating method. According to this method, only the seat portion can be warmed, which is very convenient. However, on the other hand, there are the following problems. First of all, when a heating wire heater or the like is embedded in the seat portion, a protective structure must be provided so that the heating wire heater is not deformed or broken, so that the cushioning function of the seat portion is impaired. That is, there is a problem that the sitting comfort is reduced. Second, in the case of a system that uses electricity directly for heating, such as a heating wire heater, it is not possible to use the late-night electricity for the bottom charge, and there is a risk of overheating during use.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above points, and pays attention to the characteristic of a latent heat storage material that undergoes a phase change between a solid phase and a liquid phase, and makes effective use of this characteristic. ,
The purpose of the present invention is to provide a heating chair that makes it possible to economically use late-night electricity by devising the cushioning function of the chair itself so as not to damage it, and at the same time to store heat, while solving the problem of overheating. And

[0005]

In the heating chair of the present invention, the latent heat storage body is arranged inside the chair so as to face the seating surface, and the latent heat storage body is provided below the latent heat storage body. The heating means for converting the solid phase to the liquid phase is provided. The latent heat storage body heated by the heating means,
Along with the heating, the solid phase changes to the liquid phase to store heat.
At this time, the latent heat storage body becomes liquid, and since this latent heat storage body is arranged so as to face the seat surface inside the chair, the seat surface itself bends downward so as to be curved due to the weight of the seated person. Therefore, the chair can be configured so as not to impair the cushioning effect of the chair, and the sitting comfort can be improved.

Further, in the heating chair according to the present invention, when the backrest portion integrated with the seat portion is provided, the latent heat storage body is arranged in the backrest portion so as to face the backrest surface, and behind the latent heat storage body. In addition, it is also preferable to adopt a configuration in which a heating means for converting the latent heat storage body into a liquid phase from a solid phase is provided. With this arrangement, not only can the backrest portion be provided with a heating function, but also the backrest portion can be prevented from impairing the cushioning action, like the seat portion. Furthermore, by disposing the latent heat storage body also on the backrest, the amount of heat storage can be increased accordingly.

[0007] Here, as the heating means for heating the latent heat storage body, late night electric power of the bottom charge can be used, and moreover,
It is preferable to use an electric heater that requires simple wiring.
Further, when using the electric heater, it is also preferable to use a planar heating element having a high heating efficiency for the latent heat storage body.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a partial sectional side view showing a first embodiment of the present invention. In the figure, reference sign F is a floor of, for example, a stadium or a gymnasium. On the floor F, the chair S including the seat portion 10 and the backrest portion 20 is provided with legs 30
It is installed using. Here, a main body of the seat portion 10 and the backrest portion 20 is made of resin, and a so-called blow-molded chair, which is integrally molded by a method such as blow molding so as to have a hollow portion inside, is shown.
Of course, it can also be formed by another processing method or material.

The seating surface 11 of the seat portion 10 and the backrest surface 21 of the backrest portion 20 are designed so as to have a cushioning effect so that they are comfortable to sit on. Therefore, those portions are formed slightly thinner than the other portions.

A latent heat storage body W is arranged inside the chair S, that is, inside the seat portion 10 and the backrest portion 20 in this embodiment. The latent heat storage body W is arranged so as to be located on the back surface side of the seat surface 11 and the backrest surface 21. A heating means H is provided below the latent heat storage body W in the seat portion 10 and behind the latent heat storage body W in the backrest portion 20. As the heating means H, a heating wire heater having a relatively large diameter is used here.

The latent heat storage body W is a solid phase, including that it is relatively easy to handle and a considerable amount of heat can be obtained.
Those that generate heat of fusion due to phase change between liquid phases are used. The latent heat storage body W is based on the principle of melting a substance to store heat, and conversely solidifying the heat to radiate the heat.
For example, sodium sulfate, calcium chloride, sodium thiosulfate, calcium nitrate, barium hydroxide or the like can be used alone, or a mixture thereof can be used. However, considering that it is used for a heating chair, for example, one having a melting temperature of about 30 to 50 ° C., more preferably about 35 to 40 ° C. is preferably used. In the figure, reference numeral 40 indicates a connecting mechanism between the chair S and the leg 30, reference numeral 50 indicates a heat insulating material, and reference numeral 60 indicates a temperature control sensor. The temperature control sensor 60 is used to measure the temperature of the latent heat storage body W itself, the amount of heat storage based on a temperature change, and the like, and to control them.

In the heating chair having such a structure, the night heat is used to store heat in the latent heat storage body W at night, and heat is dissipated in the daytime to heat the chair S at a necessary time. When the chair S is used, the latent heat storage body W radiates heat in a liquefied state, so that the seat surface 11 and the backrest surface 21 are
Is sufficiently unaffected by the latent heat storage body W to sufficiently exhibit the original cushioning effect of the blow-molded chair. As a matter of course, it is possible to store heat in the latent heat storage body W to heat the latent heat storage body W by energizing it in the daytime as necessary.

FIG. 2 shows a second embodiment of the present invention. In this embodiment, only the seat portion 100 of the chair S is provided with a heating function, and this is an example applied to a so-called pad type chair. That is, a recess 110 is provided in the seat portion 100, an internal hollow seat pad 120 having a size that fits in the recess 110 is provided, and a latent heat storage body W is disposed in the seat pad 120. The configuration is such that a heating wire heater H is provided in the lower part.
Therefore, in this embodiment, the surface of the seat pad 120 becomes the seat surface 121. Further, the heat insulating material 50 is provided in the seat portion 100 other than the seat pad 120 here.

When the chair S is constructed as described above, the heating function portion of the chair can be constructed as a separate body, so that the manufacturability is particularly good, and the replacement and maintenance of the seat pad 120 is also very easy. It becomes convenient. Further, the seat pad 120 can be used by being replaced with a normal pad, for example, at times other than winter, if necessary.

Although the heat insulating material 50 is provided inside the chair S in the above embodiments, it may be provided outside. In addition to the heating of the chair itself, the heat insulating material 5
0 may not be provided. Further, in the embodiment, the example in which the heating wire heater H is used as the heating means has been shown, but it is more effective to increase the heating effect of the latent heat storage body W by using, for example, a planar heating element.

Further, in the embodiment shown in the drawings, the latent heat storage body W is arranged so as to cover substantially the entire seat surface 11 and / or the backrest surface 21, but, for example, in the central portion of the seat surface 11 and the backrest surface 21. It can also be arranged partially.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view showing a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional side view showing a second embodiment of the present invention.

[Explanation of symbols]

 11 Seating surface 21 Backrest surface W Latent heat storage body H Electric heater (heating means)

Claims (3)

[Claims] 1. A heating means for arranging a latent heat storage body inside a chair so as to face a seating surface, and further, below the latent heat storage body, a heating means for phase-converting the latent heat storage body from a solid phase to a liquid phase is provided. The heating chair, which is characterized by that. 2. The chair further comprises a backrest portion integrated with a seat portion, and a latent heat storage body is arranged in the backrest portion so as to face the backrest surface, and the latent heat storage body is provided behind the latent heat storage body. The heating / cooling chair according to claim 1, further comprising heating means for converting the solid phase from a solid phase into a liquid phase. 3. The heating chair according to claim 1, wherein the heating means is an electric heater.