JP2011024905A - Heated toilet seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heated toilet seat capable of efficiently heating a sitting surface over the entire width direction thereof and suppressing the temperature irregularities of the sitting surface as well. <P>SOLUTION: The heated toilet seat 2 includes a sitting part 5 in which fitting members 14a and 14b made of a polymer material are integrally provided on both side edge parts in the width direction of a highly heat conductive sitting member 6 whose upper surface part 8 is to be the sitting surface 9, and a toilet seat base 17 disposed below the sitting part 5 and fitted and bonded with the fitting members 14a and 14b of the sitting part 5, and is provided with heating means for heating the sitting surface 9 in a void part 23 formed by the sitting part 5 and the toilet seat base 17. A flat heater 24 is provided as the heating means on the almost entire width direction at least in the lower surface part 10 of the sitting member 6, and a heat radiation member 29 for radiating the heat of the flat heater 24 is provided on the center part 28 in the width direction of the flat heater 24, away from the fitting members 14a and 14b of both side edge parts in the width direction of the sitting member 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a heated toilet seat.

  Conventionally, as a heated toilet seat, a heater that constantly energizes the heater of the heating means to heat the seating surface, and more recently, an instantaneous heating type that energizes and heats the heater only during use to instantly warm the seating surface. Have been proposed (see Patent Documents 1 to 4).

  Such a conventional heating toilet seat has a structure in which a heater for heating the seating member is provided in a hollow portion formed of a highly heat-conductive seating member such as metal and a toilet seat base made of synthetic resin. is doing.

  As a structure for joining such a seating member and a toilet seat base, Patent Document 4 discloses that a fitting member made of a polymer material is integrated with both side edges in the width direction of a metal seating member by insert molding. There has been proposed a structure in which a fitting member is fitted and joined to a toilet seat base. According to this structure, the strength at the joint between the seating member and the toilet seat base can be ensured, and durability against deformation or strain due to heat or the like can be obtained.

JP 2005-110837 A JP 2008-036064 A Japanese Utility Model Publication No. 56-039439 JP 2008-105325 A

  However, in the structure in which the fitting member is integrated with the seating member as in Patent Document 4, when the seating member is heated during use, it is integrated with the seating member in the vicinity of both side edges in the width direction of the seating member. Since the fitted member takes the heat of the seating member, the temperature rise is delayed compared to the central portion of the seating member. Therefore, temperature unevenness occurs in the seating surface in the width direction.

  When a sheet-like heater is provided over the entire lower surface of the seating member as a heating means, the temperature at the center of the seating member, where the temperature rises quickly, is detected, and the temperature at the center of the seating member increases. The energization time at the maximum power consumption to the planar heater is controlled so as not to become too much.

  Therefore, even if the vicinity of both side edges of the seating member is not sufficiently warmed by heat radiation to the fitting member, the maximum power consumption to the planar heater is increased when the central portion of the seating member whose temperature rises quickly rises to a certain temperature. Must be de-energized. Therefore, there was a problem that it was not possible to efficiently heat up to the vicinity of both side edges of the seating member.

  The present invention has been made in view of the circumstances as described above, and provides a heated toilet seat that can be efficiently heated over the entire width direction of the seating surface and can suppress temperature unevenness of the seating surface. Is an issue.

  The present invention is characterized by the following in order to solve the above problems.

  1stly, the heating toilet seat of this invention is the seating part by which the fitting member made from a polymeric material was integrally provided in the both-sides edge of the width direction of the highly heat-conductive seating member from which an upper surface part turns into a seating surface, A toilet seat base disposed at a lower portion of the seating portion and fitted and joined to a fitting member of the seating portion, and a heating portion for heating the seating surface in a hollow portion formed by the seating portion and the toilet seat base. A heating toilet seat provided with a heating means, wherein a planar heater is provided as a heating means over at least the entire width direction of the lower surface portion of the seating member, and the seating member is provided at the center portion in the width direction of the planar heater. A heat dissipating member that dissipates heat from the planar heater is provided apart from the fitting members at both side edges in the width direction.

  Second, in the first heating toilet seat, the seating member is made of metal.

  According to the first and second aspects of the present invention, the sheet heater is provided by disposing the heat dissipating member at the center in the width direction of the sheet heater so as to be separated from the fitting members at both side edges in the width direction of the seating member. Of the heat generated from the whole in the width direction, only the heat generated from the central portion is radiated to the heat radiating member. Therefore, the temperature rise in the central portion of the seating member is suppressed, and the energization time with the maximum power consumption to the planar heater can be lengthened. Therefore, it is possible to sufficiently heat the vicinity of both side edges of the seating member, whose temperature rise is slowed by heat radiation from the seating member to the fitting member, and to efficiently heat the entire seating surface in the width direction. Can do. Furthermore, since the difference in temperature rise between the central part of the seating member and the vicinity of both side edges can be mitigated and the temperature difference can be reduced, the temperature unevenness of the seating surface is also suppressed, giving the user an uncomfortable feeling. Can be prevented.

It is sectional drawing which shows embodiment of the heating toilet seat of this invention. It is a top view of the heating toilet seat of FIG. It is a perspective view of the toilet bowl provided with the heating toilet seat of FIG. It is a graph which shows the electricity supply control sequence of a planar heater.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 is a cross-sectional view showing an embodiment of the heating toilet seat of the present invention, FIG. 2 is a plan view of the heating toilet seat of FIG. 1, and FIG. 3 is a perspective view of a toilet equipped with the heating toilet seat of FIG. 1 shows a cross section taken along line AA in FIG.

  The heating toilet seat 2 of the present embodiment shown in FIGS. 1 and 2 includes a seat portion 5 and a toilet seat base 17 disposed at the lower portion of the seat portion 5, and is a cavity formed by the seat portion 5 and the toilet seat base 17. The part 23 is provided with a planar heater 24 as a heating means for heating the seating part 5.

  The seating portion 5 includes a seating member 6 that is a metal molded product. The seating member 6 has a shape having an opening 7 in the center in plan view as shown in FIG. Further, as shown in FIG. 1, both side edges in the width direction, that is, the inner peripheral edge 11 and the outer peripheral edge 12 are bent downward to form side surfaces so that the cavity 23 is formed inside. is doing.

  As a metal material which comprises the seating member 6, a thing with high heat conductivity, such as aluminum, can be used, for example. Moreover, you may make it provide the surface decoration layer in consideration of surface hardness, chemical-resistant performance, glossiness, etc. on the surface of such a metal material.

  The seat portion 5 further includes fitting members 14 a and 14 b made of a polymer material on the inner peripheral edge portion 11 and the outer peripheral edge portion 12 of the seat member 6.

  The fitting members 14a and 14b are provided integrally with the seating member 6 on the inner surface portions of the inner peripheral edge portion 11 and the outer peripheral edge portion 12 of the seating member 6 by injection molding by injection, and the lower end portion is provided with the fitting portion 15. Is formed.

  As the polymer material constituting the fitting members 14a and 14b, for example, a thermoplastic resin or an elastomer suitable for insert molding by injection can be used.

  The toilet seat base 17 has a plate shape substantially the same as that of the seating portion 5 in plan view, and is a molded product made of synthetic resin. And the fitting part 20 is formed in the both-sides edge part of the width direction, ie, the upper surface side of the inner peripheral edge part 18 and the outer peripheral edge part 19. FIG.

  As a synthetic resin constituting the toilet seat base 17, for example, a polypropylene resin, a polyethylene resin, or the like can be used.

  The seat portion 5 and the toilet seat base 17 are joined by fitting the fitting portion 15 of the seat portion 5 and the fitting portion 20 of the toilet seat base 17 at the inner peripheral edge portions 11 and 18 and the outer peripheral edge portions 12 and 19, respectively. Is done.

  In the present embodiment, a recess 16 is formed in the fitting portion 15 of the seating portion 5, and an end protrusion 21 is formed in the fitting portion 20 of the toilet seat base 17. Then, by inserting the end protrusion 21 into the recess 16 and then filling and welding the resin 22 for secondary molding into the recess 16, the joint between the seat portion 5 having the fitting structure and the toilet seat base 17 is formed. .

  In this way, the seat portion 5 and the toilet seat base 17 are integrated, and a cavity portion 23 is formed inside them. At this time, the planar heater 24 is accommodated in the cavity portion 23 by being installed in advance on the lower surface portion 10 of the seating member 6 before the seat portion 5 and the toilet seat base 17 are joined.

  In the present embodiment, as the planar heater 24, a heater wire 25 that generates heat with high efficiency when energized is disposed in sheet-like insulating layers 26a and 26b on the front and back surfaces.

  The lower surface portion 27 of the planar heater 24 dissipates heat from the planar heater 24 at the central portion 28 in the width direction away from the fitting members 14a and 14b at both side edges in the width direction of the seating member 6. A heat dissipating member 29 is attached.

  As the heat radiating member 29, for example, a metal plate such as copper or aluminum, a material in which a heat radiating fin or the like is formed on these metal plates, a graphite sheet, or the like can be used.

  As shown in FIG. 3, the heating toilet seat 2 of the present embodiment configured as described above is pivotally supported by the rear end portion of the toilet body 3, and the toilet lid 4 is also a rear end portion of the toilet body 3. Is pivotally supported by the shaft. The heated toilet seat 2, the toilet body 3, and the toilet lid 4 constitute a toilet 1.

  When the toilet 1 is used, the seating surface 9 of the heating toilet seat 2 is instantly heated by the heat generated by the planar heater 24.

  Specifically, the toilet body 3 of FIG. 3 includes a control unit (not shown) having a microcomputer or the like. This control unit controls the start and stop of energization of the planar heater 24 according to the energization control sequence stored in the microcomputer, and the presence of the user is detected by a sensor for detecting a human body, a sensor for detecting seating, and the like. When the seating of the user on the heated toilet seat 2 or the like is detected, energization to the planar heater 24 is started.

  In the energization control sequence, as shown in FIG. 4A, after energization of the planar heater 24 is started, the center portion of the seating member 6 whose temperature rise is fast by a temperature detection means (not shown) installed on the seating member 6. Based on the result of detecting the temperature 13, the energization time at the maximum power consumption in the dotted line is controlled so that the temperature of the central portion 13 in the width direction of the seating member 6 does not become too hot. After energization with the maximum power consumption, the energization is stopped via an energization state with lower power consumption.

  At this time, in the present embodiment, since the heat radiating member 29 is provided in the central portion 28 in the width direction of the planar heater 24, the heat generated in the central portion 28 in the width direction of the planar heater 24 is radiated by the heat radiating member 29. The temperature rise of the portion 13 is suppressed, and as shown in FIG. 4A, the energization time at the maximum power consumption of the planar heater 24 is increased as compared to the case of FIG. be able to.

  Therefore, the vicinity of both side edges in the width direction of the seating member 6 where the temperature rise is slowed by heat radiation from the seating member 6 to the fitting members 14a and 14b can be sufficiently heated. The heat dissipating member 29 is provided at the center portion 28 in the width direction of the planar heater 24 so as to be separated from the fitting members 14 a and 14 b at both side edges in the width direction of the seating member 6. The vicinity of both side edges in the direction is heated by strong heat generation from the portion of the planar heater 24 where the heat dissipating member 29 is not provided. Therefore, it is possible to efficiently heat the entire seating surface 9 in the width direction.

  Further, since the difference in temperature rise between the central portion 13 in the width direction of the seating member 6 and the vicinity of both side edges can be alleviated and the temperature difference can be reduced, temperature unevenness of the seating surface 9 is also suppressed, and the user Can prevent discomfort.

  Although the present invention has been described above based on the embodiment, the present invention is not limited to this embodiment, and various modifications can be made without departing from the scope of the present invention.

  For example, a metal molded body is used as the seating member 6 in the present embodiment, but a material other than metal can be used as long as it has high thermal conductivity.

  The fitting structure of the fitting part 15 of the seating part 5 and the fitting part 20 of the toilet seat base 17 may be other than the structure of the recess 16 and the end protrusion 21 as in this embodiment.

  As the planar heater 24, various types of heaters such as those conventionally known can be used as long as they can heat the seating member 6 by generating heat in a planar shape when energized.

2 Heating toilet seat 5 Seating portion 6 Seating member 8 Upper surface portion 9 Seating surface 10 Lower surface portion 13 Central portion 14a, 14b Fitting member 17 Toilet seat base 23 Hollow portion 24 Planar heater 28 Central portion 29 Heat dissipation member

Claims (2)

  A seat part in which a fitting member made of a polymer material is integrally provided on both side edges in the width direction of the seat member having a high thermal conductivity whose upper surface part is a seating surface, and a lower part of the seat part, A toilet seat comprising: a toilet seat base that is fitted and joined to a fitting member; and a heating means for heating a seating surface in a hollow portion formed from the seat portion and the toilet seat base. In addition, a planar heater is provided as a heating means over at least the entire width direction of the lower surface portion of the seating member, and fitting members on both side edges in the width direction of the seating member are provided in the center portion of the width direction of the planar heater. A heating toilet seat, characterized in that a heat dissipating member for dissipating the heat of the planar heater is provided apart from the heater.   The heating toilet seat according to claim 1, wherein the seating member is made of metal.

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