JP2005172294A - Electric warmer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric warmer which can prevent the movement during use. <P>SOLUTION: An electric warmer comprises a main body comprising a heat generating body 1 and a flexible foam 14 covering the heat generating body 1, and is provided with an air layer 13 having air sealing performance inside a face coming into contact with a floor face 9 when the main body is mounted so that the position deviation of the main body to the floor face 9 during use can be prevented by virtue of the contact between the back face of the main body and the entire floor face. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electric warming tool such as an electric carpet.

  Conventionally, in order to save energy, this type of electric warming tool insulates the floor surface with an airtight air layer (see, for example, Patent Document 1).

  FIG. 3 is an external perspective view of the conventional electric warmer described in Patent Document 1, and FIG. 4 is a cross-sectional configuration diagram of the conventional electric warmer described in Patent Document 1 (the cover is not shown). It is.

In FIG. 3, a heating element 1 as a heat source is bonded and fixed to a front cloth 2, and a felt 4 having a heat insulating function is sandwiched between a backing A 3 and the front cloth 2. A cover 5 with good design is placed on the upper surface. Next, description will be made with reference to the sectional configuration diagram of FIG. Components having the same functions as those in FIG. 3 are given the same numbers. The cover 5 is omitted. In the figure, the backing A3 is composed of a sheet A6 and a sheet B7. The sheet B7 has hemispherical projections on the entire surface, and forms a hemispherical air layer A8 with the sheet A6. The hemispherical tip of the air layer A8 is in contact with the floor surface 9. Thus, by providing the air layer A8 between the heating element 1 and the floor surface 9, more heat is radiated to the floor surface 9 and energy saving is achieved.
Japanese Patent Application Laid-Open No. 11-159779

  However, in the conventional configuration, since the heat insulating material is the felt 4, it is difficult to provide a recess in the felt 4, and the air layer A8 has to be protruded to the outside of the main body. Accordingly, the contact area between the backing material A3 of the electric warming tool (hereinafter referred to as the main body) and the floor surface 9 is remarkably reduced due to the contact at the tip of the hemispherical air layer A8. The positional deviation with respect to the floor surface 9 was remarkable. Each time you walk on the main body, there is a problem that it must be returned to the main body.

  An object of the present invention is to solve the above-described conventional problems, and to provide an electric warming tool capable of preventing the main body in use from being displaced while saving energy.

  In order to solve the above-described conventional problems, conventionally, since the heat insulating material is felt, it is difficult to provide a recess in the felt, and the air layer has to protrude outward. By using a soft foam for the heat insulating material, an air layer having airtightness is provided inside the surface in contact with the floor surface.

  Thus, the back of the main body and the entire floor surface come into contact with each other, so that the position shift of the main body in use with respect to the floor surface can be prevented.

  The electric warming tool of this invention can prevent the position shift with respect to the floor surface of the main body in use by the main body back surface and the whole floor surface contacting.

  1st invention is equipped with the heat generating body and the main body which consists of a soft foam body which covers a heat generating body, and when laying a main body, it is the structure which provided the air layer which has airtightness inside the surface which touches a floor surface. By doing so, the back of the main body and the entire floor surface are in contact with each other while energy saving is achieved using an air layer, thereby preventing the displacement of the main body in use with respect to the floor surface.

  In the second aspect of the invention, in particular, the air layer of the first aspect of the invention is configured to face the heating element, so that an air layer is provided between the floor surface over the entire heating element having the highest temperature. Therefore, the heat radiated to the floor can be effectively cut off, and further energy saving can be achieved.

  In the third invention, in particular, the air layer of the first and second inventions is configured such that the air layer has an appropriate volume when the heat generating body reaches a predetermined temperature. As the air layer expands and the main body is not distorted due to the rise, the sitting comfort does not worsen, and the back of the main body does not become uneven. By being able to do so, it is possible to prevent displacement of the main body in use relative to the floor.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional configuration diagram of an electric warming tool according to a first embodiment of the present invention.

  In FIG. 1, components having the same reference numerals as those described in the background art have the same structure and description thereof is omitted. In FIG. 1, a backing B10 is composed of a sheet C11 having a cylindrical (or hemispherical) convex portion over the entire surface and a sheet D12 in contact with the floor surface 9, and has a cylindrical air layer B13 over the entire surface. doing. Since the soft foam 14 can mix the two liquids and cause a chemical reaction to fill the gap between the front cloth 2 and the backing B10 without any gaps, the air layer B13 of the backing B10 is illustrated inside the main body. It can be configured as follows.

  About the electric warming tool comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, since the air layer B13 is inside the main body, the backing material B10 can be in contact with the entire floor surface 9 while saving energy by the heat insulating effect of the air layer B13.

  As described above, since the air layer B13 is configured inside the main body in the present embodiment, the backing B10 comes into contact with the entire floor surface 9, and the main body in use is displaced from the floor surface 9. Can be prevented. Further, since the air layer B13 is configured inside the main body, the amount of the soft foam 14 corresponding to the volume of the air layer B13 can be reduced, and resource saving can be achieved.

  Further, by adopting a configuration in which the air layer B13 has an appropriate volume when the heating element 1 reaches a predetermined temperature in the present embodiment, the air layer 13 expands due to a rise in the temperature of the heating element 1 and becomes a main body. Since no distortion occurs, sitting comfort does not worsen, and since the surface of the backing B10 does not become uneven, it can be used by maintaining full contact between the backing B10 and the floor 9 It is possible to prevent the displacement of the inside main body with respect to the floor surface.

(Embodiment 2)
FIG. 2 is an external perspective view of the electric warmer according to the second embodiment of the present invention.

  In FIG. 1, components having the same reference numerals as those described in the background art and the first embodiment have the same structure and will not be described. In the figure, an air layer C16 having a shape facing the heating element 1 is provided along the heating element 1 on the backing C15.

  About the electric warming tool comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, since the temperature of the heating element 1 is the highest, the temperature gradient from the heating element 1 toward the floor surface 9 is large, and the heat dissipation in this part is large. Therefore, by providing the air layer C <b> 16 without a gap between the heating element 1 and the floor surface 9, heat radiation can be further suppressed.

  As described above, in the form of the present embodiment, by providing the air layer C16 between the heating element 1 and the floor surface 9 without a gap, the entire portion where the temperature gradient from the heating element 1 toward the floor surface 9 is large. Further, energy saving can be achieved by providing the air layer C16 having a heat insulation effect.

  Further, by adopting a configuration in which the air layer C16 has an appropriate volume when the heating element 1 reaches a predetermined temperature according to the present embodiment, the air layer C16 expands due to the temperature rise of the heating element 1, and the body is expanded. Since no distortion occurs, the sitting comfort does not deteriorate, and the surface of the backing C15 does not become uneven, so that the entire contact between the backing C15 and the floor surface 9 can be maintained. It is possible to prevent the displacement of the inside main body with respect to the floor surface.

  As described above, the electric warming tool according to the present invention combines energy saving by heat insulation of the air layer and prevention of displacement due to the size of the contact surface, so that it is a warming tool to be laid on a surface such as a floor surface. Useful.

Sectional block diagram of the electric warmer in Embodiment 1 of the present invention External appearance perspective view of the electric heating tool in Embodiment 2 of this invention Cross-sectional configuration diagram of a conventional electric warmer External perspective view of a conventional electric warmer

Explanation of symbols

1 Heating Element 9 Floor 13 Space Layer 14 Soft Foam 16 Space Layer

Claims (3)

An electric warming tool comprising: a heating element; and a main body made of a soft foam covering the heating element, wherein an air layer having airtightness is provided inside a surface in contact with the floor surface when the main body is laid on the floor. The electric warmer according to claim 1, wherein the air layer is provided at a position facing the heating element. The electric warmer according to claim 1 or 2, wherein the air layer has an appropriate volume when the heating element reaches a predetermined temperature.

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