JP2010082185A - Heated toilet seat device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heated toilet seat device which uniformly heats a toilet seat surface with which the buttocks of a user have contact, and includes a sheet heater to adhere onto the curved surface of a rear surface corresponding to the substantially whole front surface of the toilet seat. <P>SOLUTION: The sheet heater 7 is constituted by covering a heat generation body pattern 15 with an internal insulating sheet 17 and an external insulating sheet 18. In the sheet heater 7, a plurality of cuts 9, 10 are formed in an inner peripheral area 71 and an outer peripheral area 73 in order to follow the shape of the rear surface of a toilet seat body 3. A plurality of projections 77, 78 projecting from a middle area 72 toward the inner peripheral area 71 and the outer peripheral area 73 are formed in the sheet heater 7. Thus, the toilet seat body 3 is warmed by uniform heating. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a heating toilet device, and more particularly, to a heating toilet device that uniformly heats the surface of a toilet seat body on which a seated person sits.

  In general, since the toilet seat is used for a predetermined period of time for a toilet, the inner periphery of the central opening and the outer periphery of the toilet seat form a convex curved surface with a relatively small curvature, and the user (seater) It prevents pain and discomfort in the buttocks and thighs. Further, in the middle of the inner and outer peripheral edges of the toilet seat, since it supports most of the weight in the seating posture of the user, for example, a convex curved surface with a large curvature that is relatively close to a flat surface, such as a seat surface of a chair. It has become. In some cases, it has a shape that does not cause partial pain, fatigue, discomfort, or the like by partially having a concave curved surface.

  In this case, the inner and outer peripheries of the toilet seat and the curvature between them are gradually changed as necessary at each part in consideration of the difference in the body shape of the user and the difference in the sitting posture. And it is devised to improve the comfort of sitting.

  Conventionally, in order to warm the toilet seat having such a shape, a planar heater that generates heat over the entire surface is known. The surface heater has less temperature unevenness, and the thickness of the heater part can be made thinner than a tubing heater covered with a soft electrical insulating resin as a heating element by wrapping a thin nichrome wire around heat resistant fiber etc. Excellent as a heater. However, since the planar heater needs to have a structure in which a planar resistor is covered with an insulating member, the insulating member should be made flexible for complicated concave curved surfaces such as the inner surface of the toilet seat. Even if the followability to the curved surface is improved, the internal resistor is pulled and deformed, and temperature unevenness occurs in the heating of the toilet seat. In this case, if the insulating member is made of a hard material with poor flexibility, the deformation of the resistor can be prevented, but the followability to the curved surface of the back surface of the toilet seat deteriorates, and the inner surface of the inner and outer peripheral edges of the toilet seat deteriorates. For example, the surface heater itself may partially lift from the back surface of the toilet seat or may wrinkle when attached, resulting in uneven surface temperature.

  The conventional heating toilet seat device is provided with a pair of electrodes on both sides of the long side of the elongated sheet heating element, and with the electrodes arranged on the outer peripheral side of the toilet seat, a cut is made to divide the sheet heating element into a plurality of parts, The thing along the concave surface of the back side of a toilet seat is known (for example, patent documents 1).

  In addition, a plurality of radial cuts are alternately formed from the inner and outer edges of the planar heater having a shape substantially equal to the planar shape of the toilet seat, and affixed to the back surface of the toilet seat. Is known in which a complicated and different shape is formed between adjacent cuts along a three-dimensional curved surface on the back surface of the toilet seat (for example, Patent Document 2).

Furthermore, a plurality of planar heaters divided into a plurality of rectangular pieces are arranged in one piece on the toilet seat and formed integrally, and power supplied from the outside is provided on the inner and outer peripheral edges of the toilet seat, and through each pair of annular relay lines, An electrode in which the electrodes of the sheet heater are connected in parallel so that each sheet heater follows the shape of the back surface of the toilet seat is known (for example, Patent Document 3).
Japanese Utility Model Publication No.57-4195 Japanese Utility Model Publication No. 2-19117 JP 2006-122151 A

  However, in the heating toilet seat device shown in Patent Document 1, it is necessary to keep the length between the electrodes of each planar heater divided by cutting. On the other hand, the shape of the toilet seat is mostly widened from the front to the rear. For this reason, in the rear area, there is a range where the planar heater is not provided, and when the user (sitting person) touches the toilet seat, the user may feel cold.

  In the heating toilet seat device shown in Patent Document 2, an inner peripheral edge and an outer peripheral edge are cut alternately so that a single sheet heater becomes a plurality of continuous sheet heater pieces. It must be adapted to the 3D curved surface of the toilet seat. In this case, in order to bend and affix each heater piece of a planar heater along the inner peripheral edge and the outer peripheral side wall, it is necessary to make cuts alternately between the inner peripheral edge and the outer peripheral edge at fine intervals. As a result, the planar heater has a zigzag continuous strip shape, which makes it very difficult to attach the planar heater to the toilet seat. If the sheet heater is cut at relatively rough intervals, the sheet heater can be attached to the back surface of the toilet seat, but the concave shape is formed near the inner and outer peripheral side walls of the toilet seat. Each heater piece of the sheet heater must be bent and pasted on the surface. For this reason, the bonding surface of the planar heater does not sufficiently adapt to the three-dimensional concave surface, and eventually the planar heater is lifted from the back surface or kinked.

  The heating toilet seat device shown in Patent Document 3 is provided with a pair of annular relay lines on the inner and outer peripheral edges of the toilet seat in the same manner as Patent Document 2 in order to energize the small-sided heater divided into a plurality of rectangular pieces. Since a planar heater cannot be disposed in this region, there is a problem that the temperature is low near the side walls of the inner and outer peripheral edges.

  Then, this invention is made | formed in view of an above-described problem, and makes it a subject to heat the toilet seat surface which a user's buttocks touches uniformly. It is another object of the present invention to provide a heating toilet seat device including a sheet heater that can be attached to a concave curved surface on the back surface corresponding to almost the surface of the toilet seat.

  Means taken in order to solve the above-described problems includes a heating element and an insulating member that insulates the heating element, and heating the toilet seat body on which a seated person sits by energizing the heating element. In the heating toilet seat device provided with a sheet heater on the back surface of the toilet seat body, the sheet heater includes an intermediate region located at the center of the toilet seat body, and between the intermediate region and the inner edge of the toilet seat body The heating element continuous to an inner peripheral area and an outer peripheral area between the intermediate area and the outer edge of the toilet seat body is disposed, and the inner peripheral area and the outer peripheral area have a plurality of radial inner peripheral cuts and outer peripheral cuts. In addition, the heating element has a protruding portion that protrudes from the intermediate region to the inner peripheral region and the outer peripheral region.

  In this case, in the heating element, it is preferable that the protruding portion has a rectangular shape and is connected in the intermediate region.

  Moreover, the said protrusion part is good to be provided between the said adjacent outer periphery notch while being provided between the said adjacent outer periphery notches.

  Further, it is preferable that the heating element has radially extending protrusions behind the seating surface of the toilet seat body.

  According to the present invention, when a sheet heater is attached to the back surface of a toilet seat body having a complicated three-dimensional curved surface, even if the toilet seat body is formed with a complicated concave curved surface, a radial inner peripheral cut and an outer peripheral cut are formed. Therefore, each of the cuts absorbs bending and twisting of the planar heater, and the planar heater can be adhered in close contact over the entire concave curved surface of the inner edge and outer edge of the toilet seat body. The heating element can be surely disposed with a planar heater from the middle area to the inner and outer peripheral areas to the inner and outer edges of the toilet seat body by the protruding parts protruding from the center toward both the inner and outer sides. Become. Thereby, since the heat of the planar heater is transmitted over the entire area of the toilet seat body, the inner peripheral edge and the outer peripheral edge of the toilet seat main body can be heated and heated to an appropriate temperature as quickly as the intermediate region. Therefore, the toilet seat surface which a buttocks touches can be heated uniformly, and it can be set as the heating toilet seat apparatus which can affix a planar heater on the concave curved surface of the back surface of a toilet seat main body.

  In this case, if the protruding portion has a rectangular shape and the heating elements are connected in the intermediate region, the intermediate region has a band shape without incision, so when assembling the planar heater to the toilet seat body, perform stable assembly. It is possible to uniformly heat the entire surface of the toilet seat body with a simple configuration by the protrusions in which the entire surface of the toilet seat body has a rectangular shape of a single heating element in the middle region. Therefore, not only when the user is seated, but when the user tries to sit down, even if the user accidentally breaks the posture, the skin touches the outer periphery of the toilet seat body that is rarely touched in the normal seating posture. Even no longer feel uncomfortable.

  Moreover, when a protrusion part is provided between the said outer periphery notches adjacent, and when it is provided between the said adjacent inner periphery notches, a planar heater is affixed on the back surface used as the 3-dimensional curved surface of a toilet seat main body In (1), it is possible to assemble (paste) the toilet seat main body without applying a large stress to the portion of the intermediate region connecting the protruding portion and the adjacent protruding portions.

  Furthermore, if the heating element has radially extending protrusions behind the seating surface of the toilet seat body, the entire surface of the toilet seat body can be heated more uniformly.

  In this case, it is possible to prevent the end portions where the cuts are formed at the time of pasting from being overlapped, and bending and twisting are reliably absorbed by the plurality of cuts, and depending on the deviation of the pasting position of the planar heater, etc. Although bending and twisting may increase, at least a part or all of the start edge of the inner circumferential notch is provided with a substantially triangular cutout shape, and the attachment position of the planar heater itself is within an allowable range. Even when a shift occurs, it is possible to prevent the cut portions of the planar heater in the inner peripheral region from overlapping.

  Further, when the heating element of the planar heater is a conductor made of a metal foil, a thin film resin material having high insulation and strength and appropriate flexibility is used to cover the periphery of the metal foil with an insulating member. In order to make the surface temperature of the toilet seat uniform by attaching a sheet heater covered with a thin film resin material to the metal foil, which is a heating element, to the inner surface of the toilet seat housing, the surface of the toilet seat is adhered as closely as possible. Therefore, a flexible soft resin is desirable. However, the adhesiveness of the planar heater is excellent when it is composed only of a soft resin material, but the planar heater itself bends during the work of attaching the planar heater to a predetermined position on the inner surface of the toilet seat. Therefore, handling such as positioning becomes difficult. Therefore, if at least one of the insulating members is made of a hard thin-film resin material, the flexibility and softness necessary for the adhesion and adhesion of the planar heater and the appropriate rigidity necessary for the handling and positioning of the heater are obtained. Can have.

  In addition, the metal foil is tightly fixed to the surface of the thin film resin material, and a highly penetrating insulating ink having electrical insulation is printed on the metal foil so as to cover the pattern of the metal foil. If a surface heater is constructed by pressing a similar thin film resin material with adhesive on the entire surface, moisture and moisture intrusion around the surface heater inside the toilet seat will be in comparison with the case of normal adhesion alone. The electrical safety against is improved.

Example 1
FIG. 1 shows a perspective view of the heated toilet seat device 100 with the toilet lid 12 opened. 2A is a top view of only the toilet seat body 3 shown in FIG. 1, and FIG. 2B is a front view of only the sectional toilet seat body 3. As shown in FIG. FIG. 3 is an AA cross section shown in FIG.

  As shown in FIG. 1, the warm water flush toilet seat 2 is attached to the toilet 1. The warm water washing toilet seat 2 described in the first embodiment has a heating function and functions as the heating toilet seat device 100. In the rear housing 21 behind the seating surface 30 on which a person (sitting person) is seated, a mechanism for performing local cleaning of the seating person is housed. A pair of hinge portions 4a, 4b of the toilet seat body 3 are provided on the left and right sides on the side surface of the rear housing 21, and the toilet lid 12 is rotatable around the hinge portions 4a, 4b. In addition, the toilet seat body 3 is provided with an operation unit 23 that is manually operated by a seated person, integrally with the rear housing 21 beside the seating surface. The operation unit 23 extends from the rear housing 21 to one side, accommodates a control board (not shown) inside, and has a plurality of operation switches on the upper surface.

  Next, the toilet seat body 3 will be described with reference to FIGS. The toilet seat body 3 is provided with a pair of rubber legs 5 on the lower left and right sides opposite to the seating surface 30, and the rubber legs 5 are integrally disposed on the back surface of the toilet seat body 3 and function as a cushioning material with the toilet 1. To do. The toilet seat body 3 is composed of an upper member 31 made of a resin having a seating surface 30 and a lower member 32 having the same shape as that of the upper member 31 in the vertical direction. As shown in FIG. It becomes the structure joined.

  As shown in FIG. 3, the upper member 31 of the toilet seat main body 3 has an inner peripheral upper member 31 a composed of a small curvature portion (convex surface) on the inner peripheral side of the toilet seat main body 3 and a small curvature on the outer peripheral side of the toilet seat main body 3. An outer peripheral upper member 31b is provided from the portion (convex surface) and the side wall, and an intermediate upper member 31c including a moderately curved portion (convex surface) is provided in the middle thereof. The gentle curvature portion of the intermediate upper member may be not only a convex surface but also a combination of a gentle convex surface and a concave surface.

  The angle (inclination angle) θ formed by the upper inclined surface of the upper member 31 and the horizontal line increases from the AA cross section shown in FIG. The angle is set so as to be maximum at the BB cross section coincident with the center line, and becomes smaller toward the front and becomes minimum near the CC cross section corresponding to the center line in the longitudinal direction. Is set to Among the upper and lower members 31 and 32 of the toilet seat body 31, the upper member 31 is configured by a combination of complicated curved surfaces in consideration of the user's sitting comfort, and the inner surface is also a complicated curved surface.

  Further, as shown in FIG. 3, an inner circumferential groove 36a and an outer circumferential groove 36b are provided at the tips of the inner circumferential upper member 31a and the outer circumferential upper member 31b, respectively. The planar heater 7 is provided so as to reach a bent portion from the intermediate upper member 31c to the inner peripheral upper member 31a and each bent portion from the intermediate upper member 31c to the outer peripheral upper member 31b. Next, the lower member 32 has a substantially flat horseshoe shape, and has an inner peripheral protrusion 32a that fits in the outer peripheral groove 36a on the inner peripheral edge, and an outer peripheral protrusion 32b that fits in the outer peripheral groove 36b on the outer peripheral edge. . A small space is formed on each of the inner peripheral side and the outer peripheral side so as to face the inner peripheral groove 36a of the inner peripheral upper member 31a and the outer peripheral groove 36b of the outer peripheral upper member 31b. In order to prevent intrusion of water, urine and the like, an inner packing 8a and an outer packing 8b are accommodated.

  As shown in FIG. 4, a horseshoe-shaped planar heater 7 is affixed inside the concave surface of the upper member 31 of the toilet seat body 3. In the planar heater 7, an inner peripheral notch 9 provided on the inner periphery and an outer peripheral notch 10 provided on the outer periphery are formed at equal intervals. An overlapping portion 11 of the planar heater 7 is present on the front side of the toilet seat body 3 above (in front of the seating surface 30) shown in FIG. 4, and the planar heater 7 overlaps with a predetermined section in the overlapping portion 11.

  FIG. 5 shows a configuration of the planar heater 7 to be attached to the back surface of the toilet seat body 3. The state before the surface heater 7 is attached to the upper member 31 of the toilet seat body 3 is shown with the side on which the surface heater 7 is attached to the inner surface of the toilet seat being disposed on the lower surface (paper surface direction) and the tip side being disposed upward.

  The outer shape of the planar heater 7 has a horseshoe shape based on a developed shape of a three-dimensional surface (concave surface) inside the upper member 31 of the toilet seat body 3, and the distal ends of the planar heater 7 are separated from each other by a predetermined distance. . When the distance between the left and right tip portions is affixed to the inner surface of the upper member 31, even if a part of the left and right insulating sheet tip portions 74 overlap to form the overlapping portion 11 (FIG. 4), the heating element pattern 15 is overlapped. It is set to a shape that does not become. 5 is a heating element pattern 15 that generates heat when energized, and is formed of a metal thin film such as an aluminum foil or a stainless steel foil. As shown in FIG. 6, the surface is water-tightly covered with two insulating sheets. On the inner periphery of the planar heater 7, for example, a plurality of radial inner peripheral incisions 9 extending from the center position of the seating surface 30 are formed at equal intervals, and an inner peripheral region 71 is formed on the outer periphery. An outer peripheral region 73 having a plurality of outer peripheral cuts 10 at equal intervals is formed.

  It is preferable that the direction of the cut line between the inner peripheral notch 9 and the outer peripheral notch 10 is arranged almost alternately so that they are not aligned in the same linear direction as much as possible. An intermediate region 72 in which neither the inner peripheral notch 9 nor the outer peripheral notch 10 extends is continuously formed at substantially the center of the inner and outer periphery of the planar heater 7.

  The heating element pattern 15 includes an intermediate region between the intermediate region pattern 153 disposed in an arc shape over the entire center of the intermediate region 72 having no cut, and two adjacent inner peripheral cuts 9. Between the inner peripheral area pattern 151 having a rectangular shape (becomes a protruding portion 77) continuously extending from the pattern 153 toward the inner edge 75, and the outer edge from the intermediate area pattern 153 between the two adjacent outer peripheral cuts 10 And the outer peripheral area pattern 152 having a rectangular shape (becomes the projecting portion 78) continuously extending toward 76, and the heating element pattern 15 continues from the outer peripheral area pattern 152 to the inner peripheral area pattern 151. Yes.

  Further, as shown in FIG. 5, the heating element pattern 15 is electrically connected at both ends of the heating element pattern 15 to the two positive and negative electrodes 16 at substantially the center behind the seating surface 30. When the electrode 16 is energized by a heat generation control unit provided in the rear housing 21, the electrode 16 is heated and heated to warm the seating surface 30.

  The planar heater 7 shown in FIG. 5 has a horseshoe shape whose outer shape is based on a developed shape of a solid surface (concave surface) inside the upper member 31 of the toilet seat body 3. Since the sheet heater 7 has the inner peripheral notch 9 and the outer peripheral notch 10 over the entire inner and outer periphery, these notches 9 and 10 are the inner peripheral upper member 31a and the outer peripheral upper member 31b of the upper member 31 in actual bonding. In accordance with the complicated curved surface shape of the back surface of the toilet seat body 3, it can be attached in a wide range up to the inner edge and the outer edge of the back surface of the toilet seat body 3 by appropriately expanding or folding.

  The planar heater 7 has an intermediate region 72 where the inner edge 75 and the outer edge 76 are not cut on the entire circumference of the central portion of the upper member 31, so that the sheet heater 7 does not hang down and has an appropriate rigidity when attached to the back surface of the toilet seat body 3. Can be attached in accordance with the concave shape of the toilet seat body 3, and the workability is excellent.

  Further, as described above, in the planar heater 7, the heating element pattern 15 is adjacent to the intermediate region pattern 153 arranged in an arc shape over the entire center of the intermediate region 72 where there is no cut. The inner peripheral area pattern 151 extending in a rectangular shape from the intermediate area pattern 153 toward the inner peripheral edge between the inner peripheral incisions 9 and the intermediate area pattern 153 between the two adjacent outer peripheral incisions 10. Since the outer peripheral area pattern 152 extending in a rectangular shape toward the outer peripheral edge is formed, the heating element pattern 15 has a rectangular shape over the entire surface area of the seating surface 30 of the toilet seat body 3 where a seated person normally sits. By arranging the protruding portions 77 and 78, a comfortable seating temperature distribution can always be obtained. In this case, one rectangular protrusion 78 is formed between the outer peripheral notches 10 provided at equal intervals, and the inner peripheral protrusion 77 of the inner peripheral notches 9 provided at equal intervals. One is formed between them. The protrusions 77 and 78 are formed to have lines parallel to the lines of the inner and outer peripheral cuts 9 and 10. In this embodiment, the inner and outer peripheral cuts 9 and 10 are formed at equal intervals. However, the present invention is not limited to this, and it may not be equal intervals. Further, there may be portions where the protruding portions 77 and 78 are not formed with respect to the two adjacent inner and outer peripheral cuts 9 and 10, respectively.

  Even if a part of the left and right insulating sheet front end portions 74 overlaps after the surface heater 7 is attached in order from the rear right half or the rear left half at the front end portion of the planar heater 7, the heating element pattern 15 are overlapped to form a shape separated by a predetermined distance where no wrinkles occur. Therefore, when the planar heater 7 is attached to the back surface of the upper member 31 of the toilet seat body 3 as shown in FIG. 4, the resistance value abnormality associated with the deformation of the heating element pattern 15 at the front end portion of the toilet seat is caused at the front end portion of the toilet seat. Abnormal temperature rise can be prevented.

  FIG. 6 shows the configuration of the planar heater 7. In the sheet heater 7, the heating element pattern 15 is bonded to the outer insulating sheet 17, and the inner insulating sheet 18 is provided with the inner adhesive material 19 having a strong fixing force and high electrical insulation on the side where the heating element pattern 15 is bonded. It has a structure that is water-tightly bonded.

  Further, the outer surface of the outer insulating sheet 17 which is the side to be attached to the inner concave surface of the upper member 31 is an external adhesive material 20 having a strong fixing force and high electrical insulation, and the outer side is provided with a release paper 21. This release paper 21 protects the external adhesive material 20 until immediately before the pasting operation. The outer insulating sheet 17 and the inner insulating sheet 18 described above are made of a hard resin sheet such as polyethylene terephthalate (PET) or polyethylene naphthalate (PEN). The heating element pattern 15 is composed of a sheet metal foil resistor formed by a method in which an aluminum foil or a stainless steel foil previously bonded to one of the resin sheets is finished into a predetermined pattern shape by etching or the like.

  As described above, since the outer insulating sheet 17 and the inner insulating sheet 18 employ a hard resin, the outer insulating sheet 17 and the inner insulating sheet 18 have an appropriate rigidity, and the above-described planar heater 7 is attached in accordance with the concave shape of the toilet seat. Excellent workability without sagging.

  Further, since the internal adhesive material 19 has high adhesion and electrical insulation, the inside of the planar heater 7 can be kept watertight even in an environment where water or urine, which is an electrolyte such as a toilet seat, is easily applied. It is possible to ensure electrical safety for the person.

  In order to efficiently transmit the heat generated by the planar heater 7 to the upper member 31 (FIG. 3) on which the user is seated, it is desirable that the external adhesive material 20 has a particularly high thermal conductivity. The internal adhesive 19 has low thermal conductivity so that heat generated by the planar heater 7 is not easily radiated to the internal space surrounded by the upper member 31 and the lower member 32 (FIG. 3) via the inner insulating sheet 18. desirable.

(Example 2)
FIG. 7 shows a second embodiment in which the configuration of the planar heater 7 according to the present invention is modified. FIG. 7 is a modification of the EE cross section of FIG. Since the overall configuration of the heating toilet seat device according to the second embodiment of the present invention is the same as that of the heating toilet seat device 100 according to the first embodiment shown in FIGS. 1 to 5, detailed description of the same parts is omitted. Differences from Example 1 will be mainly described.

  In the second embodiment, the sheet heater 7a has the heating element pattern 15a bonded to the outer insulating sheet 17a, and the surface of the heating element pattern 15a is printed with the electrical insulating ink 22 that is a feature of the second embodiment (for example, screen printing). Etc.). The electrical insulating ink 22 is made of a pigment having both high penetrating power and high electrical insulating properties. Further, the outer insulating sheet 17a, which is the side to be bonded to the inner concave surface of the upper member 31, is structured such that the inner insulating sheet 18a is watertightly bonded to the surface via the inner adhesive material 19a. 21a. The material, characteristics, and structure of the outer insulating sheet 17a and the inner insulating sheet 18a are the same as those in the first embodiment.

  The heating element pattern 15a is the same as that of the first embodiment, and is composed of a sheet metal foil resistor formed by a method in which an aluminum foil or a stainless steel foil previously bonded to one of the resin sheets is finished into a predetermined pattern shape by etching or the like. .

  As described above, the electrical insulating ink 22 is made of a pigment having both high penetrating power and high electrical insulation, and is printed between the outer insulating sheet 17a and the heating element pattern 15a when printed on the outer insulating sheet 17a. Since it penetrates into the formed minute gap and is fixed while filling the minute space, it is possible to more reliably prevent the entry of water, urine and the like from the outside. Thereby, the heating toilet seat apparatus 100 with higher safety | security than before can be provided.

(Example 3)
FIG. 8 is a planar heater 7b of the heating toilet seat device according to the third embodiment of the present invention, and corresponds to the plan view of FIG. The overall configuration of the toilet bowl with a toilet seat using the heating toilet seat device according to the third embodiment of the present invention is the same as that of the first embodiment of the present invention shown in FIGS. The explanation is omitted, and different points are mainly explained.

  The planar heater 7b in FIG. 8 corresponds to FIG. 5 of the first embodiment. As in the first embodiment, the side to be affixed to the inner surface of the toilet seat is the lower surface (paper surface direction), and the tip side is the upper side. The state before affixing to the upper member 31 of the toilet seat main body 3 in the arranged state is shown.

  The outer shape of the planar heater 7b is a horseshoe shape based on the developed shape of the three-dimensional surface (concave surface) inside the upper member 31 of the toilet seat body 3, and the tip of the planar heater 7b is separated by a predetermined distance. It is. The distance between the left and right tip portions is set such that when the left and right insulating sheet tip portions 74a overlap, the heating element pattern 15b does not overlap when pasted on the inner surface of the upper member 31. The solid line of the rectangular sawtooth shape in the figure is the heating element pattern 15b, which is formed of a metal thin film or the like as in the first embodiment, and its surface is covered with two insulating sheets in a watertight manner. . On the inner periphery of the planar heater 7b, an inner peripheral region 71a having a plurality of inner peripheral cutouts 13 forming a long and narrow triangle from the inner edge toward the inside is formed. Further, on the outer periphery, an outer peripheral region 73a having a plurality of outer peripheral notches 14 that form a long and narrow triangle from the outer edge to the inside is formed.

  It is preferable that the inner notches 13 and the outer notches 14 are arranged almost alternately so that the directions of the notches are not aligned in the same linear direction as much as possible. An intermediate region 72a in which neither the inner peripheral notch 13 nor the outer peripheral notch 14 extends is continuously formed at the center position of the planar heater 7b.

  The heating element pattern 15b includes an intermediate region pattern 153b that is arranged in a circular arc continuously in the approximate center of the intermediate region 72a without a notch, and an intermediate region pattern between two adjacent inner peripheral notches 13. An inner peripheral region pattern 151b extending in a rectangular shape from 153b toward the inner peripheral edge, and an outer periphery extending in a rectangular shape from the intermediate region pattern 153b toward the outer peripheral edge between two adjacent outer peripheral cutouts 14 A region pattern 152b is formed.

  The above-described patterns 151b, 152b, 153b of the respective regions are all continuous, and are configured to generate heat by energization from a heat generation control unit (not shown) as in the first embodiment.

  The planar heater 7b has a horseshoe shape whose outer shape is based on the developed shape of the three-dimensional surface (concave surface) inside the upper member 31 of the toilet seat body 3 in the same manner as in the first embodiment. Since the cutouts 14 are provided over the entire circumference, in the actual attachment, these cutout portions are the inner peripheral upper member 31a and the outer peripheral upper member 31b of the upper member 31 as compared with the case of only the cut lines shown in the first embodiment. Since it is easy to expand and fold more appropriately along a complicated curved surface shape such as the above, it is possible to make a more suitable deformation by a complicated concave shape, so that the heating element pattern 15b itself is deformed and an abnormal resistance value occurs. An abnormal temperature rise due to can be prevented more reliably.

  Further, the tip of the planar heater 7b has a shape separated by a predetermined distance, and when pasted from the rear toward the tip, even if a part of the left and right insulating sheet tips 74a overlap, heat is generated. The body pattern 15b itself has an appropriate distance that does not overlap or cause wrinkles.

  Further, since the planar heater 7b has an intermediate region 72a without a cutout corresponding to the entire circumference of the central portion of the upper member 31, when the attaching operation is performed, the rigidity is appropriate as in the first embodiment. And has excellent workability to apply according to the concave shape of the toilet seat.

  Further, similar to the first embodiment, the heating element pattern 15b of the planar heater 7b is adjacent to the intermediate region pattern 153b that is arranged in an arc shape around the entire center of the intermediate region 72a having no notch. Between the two inner peripheral notches 13, the intermediate region pattern 151 b extending in a loop from the intermediate region pattern 153 b toward the inner peripheral edge, and between the two adjacent outer peripheral notches 14, the intermediate region pattern Since the outer peripheral area pattern 152b extends in a loop shape from the outer peripheral edge to the outer peripheral edge, the heating element pattern is arranged over the entire surface area where the user normally sits, and the user is always comfortable. A seating temperature distribution can be obtained.

Example 4
FIG. 9 is a planar heater 7c of the heating toilet seat device according to the fourth embodiment of the present invention, and corresponds to the plan view of FIG. The overall configuration of the toilet seat-equipped toilet using the heated toilet seat device according to the fourth embodiment of the present invention is the same as that of the toilet seat-equipped toilet using the heated toilet seat device according to the first embodiment shown in FIGS.

  The planar heater 7c is in a state before being attached to the upper member 31 of the toilet seat body 3 in which the side to be attached to the inner surface of the toilet seat is downward and the tip side is upward as in the first embodiment.

  The outer shape of the planar heater 7 c has a horseshoe shape based on the developed shape of the solid surface (concave surface) inside the upper member 31 of the toilet seat body 3. The front portion of the planar heater 7c has a V-shaped bridge portion 24 formed integrally with the left and right insulating sheet front end portions 74b so that the heating element patterns 15c are kept apart from each other by a predetermined distance. It is integrally connected from both sides of the bridge portion 24 via the connecting portion 25. The distance between the heating element patterns 15c of the left and right insulating sheet front end portions 74b is such that when they are pasted to the inner surface of the upper member 31 to the end, heat is generated even if part of the insulating sheets 74b at the left and right front end portions overlap. The body pattern 15c is set to a shape that does not overlap.

  The heating element pattern 15c of the planar heater 7c is formed of a metal thin film or the like as in the first embodiment, and its surface is covered with two insulating sheets in a watertight manner. On the inner periphery of the planar heater 7c, an inner peripheral region 71b is formed having a plurality of inner peripheral cutouts 13a radially forming an elongated triangle extending from the inner edge toward the inside. An outer peripheral region 73b having a plurality of outer peripheral cutouts 14a is formed.

  The inner peripheral notches 13a and the outer peripheral notches 14a are alternately arranged so that the directions of the notches are not aligned in the same linear direction as much as possible. The inner peripheral notches 13a and the outer peripheral notches An intermediate region 72b in which none of 14a extends extends continuously at a substantially central portion in the circumferential direction of the planar heater 7c.

  Furthermore, the heating element pattern 15c is formed between the intermediate region pattern 153c arranged in an arc shape over the entire center of the intermediate region 72b without a notch, and two adjacent inner peripheral notches 13a. The inner peripheral area pattern 151c extending in a loop shape from the intermediate area pattern 153c toward the inner peripheral edge and a loop shape extending from the intermediate area pattern 153c toward the outer peripheral edge between the two adjacent outer peripheral cutouts 14a. The outer peripheral area pattern 152c extends.

  The planar heater 7c has a horseshoe shape whose outer shape is based on the developed shape of the three-dimensional surface (concave surface) inside the upper member 31 of the toilet seat body 3, and the inner peripheral notch 13a and the outer peripheral notch 14a are formed on the heater. It has the entire outer shape. As a result, in attaching the planar heater 7c, the inner and outer cutouts 13a and 14a are formed on the inner peripheral upper member 31a and the outer peripheral upper member of the upper member 31 as compared with the case of only the cut line shown in the first embodiment. Since it is easy to expand or fold more appropriately along a complicated curved surface shape such as 31b, it is possible to perform a more suitable deformation by a complicated concave surface shape, and thus the resistance value generated by the deformation of the heating element pattern 15c itself. Abnormal temperature rise due to abnormality can be prevented. The purpose of Example 4 is to further improve the workability of attaching. That is, since the left and right are flexibly connected to the tip of the sheet heater 7c formed in a horseshoe shape whose tip is open to the left and right by the bellows-like bridge member 24 formed integrally with the insulating sheet. At this time, when the planar heater 7c is taken out of the box or the like and placed at a predetermined position, the left and right sides are greatly opened, and the heater itself is not wrinkled or torn.

  In addition, since it is flexibly connected by the bellows-shaped narrowed bridge member 24, in the pasting work process, either one of the left and right heating pattern portions is pasted first, and then the other is pasted. Even in the case of manual work such as sticking, and in the case of simultaneous left and right sticking by an automatic machine, the left and right sides of the heater do not open too much, so that stable sticking work can be performed.

  Further, at the front end of the toilet seat, the heating element patterns 15c are connected by a bridge member 24 formed integrally with the left and right insulating sheet front ends 74b so as to maintain a predetermined distance. In this case, when pasted from the rear end of the toilet seat to the front end side, the heating element pattern 15c is set so as not to overlap even if the insulating sheet front end portion 74b overlaps. There is no.

  Further, as in the first embodiment, the planar heater 7c has an intermediate region 72b without a cutout corresponding to the entire circumference of the central portion of the upper member 31. Similarly, since it has an appropriate rigidity, it is excellent in workability to be pasted according to the concave shape of the toilet seat.

  Further, the heating element pattern 15c of the planar heater 7c includes an intermediate region pattern 153c arranged in an arc shape over the entire circumference of the intermediate region 72b without notches, and two adjacent inner peripheral cuts. 13a between the intermediate region pattern 153c extending from the intermediate region pattern 153c toward the inner peripheral edge in a loop shape, and between the two adjacent outer peripheral cuts 14a, the intermediate region pattern 153c toward the outer peripheral edge. Since the outer peripheral area pattern 152c extends in a loop shape, the heating element pattern is arranged over the entire surface area where the user normally sits, and the user always obtains a comfortable seating temperature distribution. I can do it.

The perspective view of the heating toilet seat apparatus in the state which opened the toilet lid in Example 1 of this invention is shown. (A) is a top view only of the toilet seat main body shown in FIG. 1, (b) shows the front view of only a toilet seat main body. It is AA sectional drawing in (a) of FIG. The top view seen from the back surface of the upper member shown in (b) of FIG. 2 is shown. The partial perspective view seen from the back surface of the toilet seat main body which shows the shape of the heat generating body pattern affixed on the toilet seat main body shown in FIG. 1 is shown. Sectional drawing which shows the structure of a planar heater is shown. Example 2 in which the heating element pattern of the planar heater shown in FIG. 6 is covered with electrically insulating ink is shown. The top view of the planar heater in Example 3 of this invention is shown. The top view of the planar heater in Example 4 of this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Toilet 2 Warm water washing toilet seat 3 Toilet seat main body 7,7a, 7b, 7c Planar heater 9 Inner periphery notch 10 Outer periphery notch 13,13a Inner periphery notch 14,14a Outer periphery notch 15,15a, 15b, 15c Heating element)
16 Electrodes 17 and 17a Outer insulating sheet (insulating member)
18, 18a Inner insulating sheet (insulating member)
19, 19a Internal adhesive material 20, 20a External adhesive material 22 Insulating ink 30 Seating surface 31 Upper member 32 Lower member 71, 71a, 71b Inner peripheral region 72, 72a, 72b Intermediate region 73, 73a, 73b Outer peripheral region 75 Inner peripheral edge (Inner edge)
76 Outer edge (outer edge)
77,78 Projection 100 Heating toilet seat device

Claims (4)

A heating element and an insulating member for insulating the heating element are provided, and a sheet heater for heating the toilet seat body on which a seated person sits by energizing the heating element is provided on the back surface of the toilet seat body In the heated toilet seat device,
The planar heater includes an intermediate region located at the center of the toilet seat body, an inner peripheral region between the intermediate region and the inner edge of the toilet seat body, and an outer peripheral region between the intermediate region and the outer edge of the toilet seat body. A plurality of radial inner peripheral incisions and outer peripheral incisions are formed in the inner peripheral region and the outer peripheral region, and the heating element is connected to the inner peripheral region and the inner peripheral region from the intermediate region. A heating toilet seat device having a protruding portion protruding from the outer peripheral region. The heating toilet seat device according to claim 1, wherein the protruding portion has a rectangular shape, and the heating elements are connected in the intermediate region. The heating toilet seat device according to claim 1 or 2, wherein the protruding portion is provided between the adjacent outer peripheral cuts, and is provided between the adjacent inner peripheral cuts. The heating toilet seat device according to at least one of claims 1 to 3, wherein the heating element has radially extending protrusions behind the seating surface of the toilet seat body.

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