JP2017046736A - Heated toilet seat device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heated toilet seat device capable of suppressing disconnection of a connection part between a heater wire and a lead wire.SOLUTION: A heated toilet seat device includes: a seat part 230 having a seat face SF and a back face BF opposite to the seat face; a bottom part having an opposing face opposite to the back face in which a space surrounded by the back face and the opposing face is formed by the back face being covered with the opposing face; a heating part 210 having a first foil body 211, a second foil body 212, a linear heater provided between the first foil body and the second foil body, which is provided on the back face; and a lead wire connected to the linear heater, which supplies power to the linear heater. A connection part 270 between the linear heater and the lead wire is covered with the first foil body provided on the back face, and is fixed to the heating part.SELECTED DRAWING: Figure 8

Description

  Aspects of the invention generally relate to a heated toilet seat apparatus.

  There is a heated toilet seat device that warms the seating surface of the toilet seat to an appropriate temperature so that the user does not feel uncomfortable when the user sits on the toilet seat. In the heating toilet seat device, a heating unit such as a heater is built in the toilet seat, and the seating surface is warmed to a necessary temperature by controlling the amount of current supplied to the heating unit by the control unit.

  2. Description of the Related Art In recent years, there has been known a heating toilet seat in which the toilet seat upper plate is made thin so that the heat capacity of the seating portion is reduced and the performance of the heating toilet seat is improved. However, if the seating portion is thin, the strength of the seating portion is reduced, and it becomes difficult to support the weight of the user. Therefore, it has been proposed to provide a holding portion that supports the back surface of the seating portion in the space inside the toilet seat (Patent Document 1). Thereby, even when the seat portion is thin and the heat capacity of the seat portion is reduced, deformation of the seat portion can be suppressed.

  On the other hand, in the heating toilet seat device, the lead wire and the heater wire of the control unit for controlling the energization amount to the heater wire of the heating unit are connected. The connecting portion between the heater wire and the lead wire is disposed on the surface of the heating portion inside the toilet seat. Depending on the arrangement of the connecting portions, there is a problem that the seat portion and the bottom portion of the toilet seat are sandwiched between the seat portion and the bottom portion, resulting in disconnection. In addition, in a heating toilet seat device in which a holding portion that supports the back surface of the seating portion is provided in a space inside the toilet seat as in Patent Document 1, when the seating portion is deformed, a connection portion between the heater wire and the lead wire is not provided. Depending on the fixing position of the connecting part, there is also a problem that the supporting part breaks.

JP 2001-299645 A

  This invention is made | formed based on recognition of this subject, and it aims at providing the heating toilet seat apparatus which can suppress the disconnection of the connection part of a heater wire and a lead wire.

  The first invention has a seating portion having a seating surface and a back surface opposite to the seating surface, a facing surface facing the back surface, and the back surface is covered with the facing surface. Provided between the bottom formed with a space surrounded by the back surface and the facing surface, the first foil body, the second foil body, and the first foil body and the second foil body. And a heating unit provided on the back surface, and a lead wire connected to the linear heater and supplying power to the linear heater. The connecting portion between the linear heater and the lead wire is covered with the first foil body provided on the back surface and fixed to the heating unit. .

  According to this heating toilet seat device, the connecting portion is fixed to the heating portion. For this reason, it is possible to prevent the connection portion from being displaced by the operator and being disconnected between the seating portion and the bottom portion when the seating portion and the bottom portion are assembled.

  In a second aspect based on the first aspect, the first foil body includes an extension portion that does not adhere to the second foil body, and the connection portion folds the extension portion toward the space. In this state, the heated toilet seat device is covered with the first foil body.

  According to this heating toilet seat device, the connecting portion between the linear heater and the lead wire is fixed to the heating portion with a simple structure. In addition, the folded crease serves as a mark, which makes it easier for the operator to determine the fixed position of the connecting portion and improves workability. For this reason, it is possible to prevent the connection portion from being displaced by the operator and being disconnected between the seating portion and the bottom portion when the seating portion and the bottom portion are assembled.

  According to a third invention, in the second invention, a first adhesive is provided between the second foil body and the linear heater, and the first foil body and the back surface A second adhesive is provided therebetween, and a third foil body is provided on the space side of the extension portion, and the third foil body and the second adhesive The heating toilet seat device is characterized in that a third adhesive is provided therebetween.

  According to the heating toilet seat device, the connecting portion can be easily fixed with the third foil body and the third adhesive in a state where the extending portion is folded back to the space side. Therefore, a simple configuration can be formed for the heating unit itself. As a result, it is possible to suppress the connection portion from being displaced by the operator and being connected between the seating portion and the bottom portion and being disconnected between the seating portion and the bottom portion due to the simple configuration. it can.

  A fourth invention is the heating toilet seat device according to any one of the first to third inventions, wherein the space is provided with a load support portion for supporting the seating portion.

  According to this heating toilet seat device, even in the heating toilet seat device provided with the load support portion, the connecting portion between the linear heater and the lead wire can be easily fixed at a position that does not interfere with the load support portion. As a result, it is possible to provide a heated toilet seat device that can suppress disconnection of the connection portion between the heater wire and the lead wire.

  According to the aspect of the present invention, there is provided a heating toilet seat device that is made based on recognition of such a problem and can suppress disconnection of a connection portion between a heater wire and a lead wire.

It is a perspective view showing typically a toilet device provided with a heating toilet seat device concerning an embodiment. It is a block diagram showing typically the control composition of the heating toilet seat device concerning an embodiment. It is an exploded perspective view showing a toilet seat concerning an embodiment typically. It is a fragmentary sectional view showing a part of toilet seat concerning an embodiment typically. It is a top view which represents typically the heating part concerning an embodiment. It is a fragmentary sectional view showing typically a part of heating part concerning an embodiment. It is a top view showing typically the state where the extension part of the heating part concerning an embodiment was turned up, and the state where the 2nd temperature sensing part of the heating part was turned up. It is principal part sectional drawing of the connection part concerning embodiment. It is principal part sectional drawing of the safety device concerning embodiment.

Hereinafter, embodiments will be described with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a perspective view schematically showing a toilet apparatus provided with the heating toilet seat apparatus according to the embodiment.
FIG. 2 is a block diagram schematically illustrating a control configuration of the heating toilet seat device according to the embodiment.

  The toilet apparatus 10 shown in FIG. 1 includes a Western-style seat toilet (hereinafter simply referred to as “toilet bowl”) 800 and a heated toilet seat apparatus 100 provided thereon. The heating toilet seat device 100 includes a toilet seat 200, a toilet lid 300, and a heating toilet seat function unit 400. The toilet lid 300 is provided in the heating toilet seat device 100 as necessary, and can be omitted. The toilet seat 200 and the toilet lid 300 are pivotally supported by the heating toilet seat function unit 400 so as to be freely opened and closed.

  Here, in the specification of the present application, the upper side is “upward” when viewed from the user sitting on the toilet seat 200, and the lower side is “downward” when viewed from the user sitting on the toilet seat 200. Further, the front is viewed as “front” when viewed from the user sitting on the toilet seat 200 with his back to the opened toilet lid 300, and the rear is defined as “rear” when viewed from the user sitting on the toilet seat 200. Further, the right side is “right side” as viewed from the user standing in front of the toilet bowl 800 and the left side is “left side” as viewed from the user standing in front of the toilet bowl 800.

  The toilet bowl 800 has a bowl portion 801. The bowl portion 801 has a concave shape that is recessed downward. The toilet bowl 800 receives excrement such as urine and feces of the user in the bowl portion 801.

  The toilet seat 200 has an opening 200 a that exposes the bowl 801. The toilet seat 200 is provided on the toilet bowl 800 so as to surround the outer edge of the bowl portion 801, and exposes the bowl portion 801 through the opening 200a. Thereby, the user can perform excretion into the bowl portion 801 while sitting on the toilet seat 200. In this example, a so-called O-type toilet seat 200 having a through-hole-shaped opening 200a is shown. The toilet seat 200 is not limited to the O shape, and may be a U shape. The opening 200a is not limited to a through hole shape, and may be a notch shape. The shape of the toilet seat 200 in a use state (a state in which a user can be seated) viewed from above is an annular shape or a U-shape.

  As illustrated in FIG. 2, the toilet seat 200 includes a heating unit 210 and a temperature detection sensor 220. The heating unit 210 is provided inside the toilet seat 200. The heating unit 210 heats the toilet seat 200 from the inside by generating heat in response to energization. The heating unit 210 is a so-called heater. For the heating unit 210, for example, resistance heating means, induction heating means for heating by electromagnetic induction, or the like is used.

  The temperature detection sensor 220 detects the temperature of, for example, a seating surface (surface on which a user's butt is in contact) SF of the toilet seat 200. In the embodiment, the temperature of the toilet seat 200 refers to the temperature of the seating surface SF. The temperature of the seating surface SF may be the temperature of the seating surface SF calculated from the detected temperature in addition to the temperature detected by the temperature detection sensor 220.

  The heating toilet seat function unit 400 includes a control unit 410. The control unit 410 controls the energization amount to the heating unit 210 based on the detection signal from the temperature detection sensor 220. The heated toilet seat function unit 400 further includes, for example, a seating detection sensor 420, a human body detection sensor 430, an entrance detection sensor 440, and a room temperature detection sensor 460. The seating detection sensor 420 detects the seating of the user on the toilet seat 200. The human body detection sensor 430 detects a user in front of the toilet seat 200. The entrance detection sensor 440 detects the user entering the toilet room. The room temperature detection sensor 460 detects the room temperature of the toilet room.

  The seating detection sensor 420 can detect a human body existing above the toilet seat 200 immediately before the user is seated on the toilet seat 200 or a user seated on the toilet seat 200. The seating detection sensor 420 may detect not only a user seated on the toilet seat 200 but also a user existing above the toilet seat 200. As such a seating detection sensor 420, for example, an infrared light projecting / receiving type distance measuring sensor can be used. The seating detection sensor 420 may be a switch that is turned ON / OFF by a load when the user is seated. When the seating detection sensor 420 detects the seating of the user, the seating detection sensor 420 outputs a signal SG3 indicating that the seating has been detected to the control unit 410.

  The human body detection sensor 430 can detect a user in front of the toilet bowl 800, that is, a user present in a position spaced forward from the toilet seat 200. That is, the human body detection sensor 430 can detect a user who enters the toilet room and approaches the toilet seat 200. As such a human body detection sensor 430, for example, an infrared light projecting / receiving distance measuring sensor can be used. When detecting the human body, the human body detection sensor 430 outputs a signal SG1 indicating that the human body has been detected to the control unit 410.

  The entrance detection sensor 440 can detect a user immediately after opening a toilet room door or entering a toilet room and a user existing in front of the door. That is, the entrance detection sensor 440 can detect not only the user who entered the toilet room, but also the user before entering the toilet room, that is, the user existing in front of the door outside the toilet room.

  As such a room entry detection sensor 440, a pyroelectric sensor, a microwave sensor such as a Doppler sensor, or the like can be used. When using a sensor that uses the microwave Doppler effect or a sensor that detects the object to be detected based on the amplitude (intensity) of the microwave transmitted and reflected, the user's The presence can be detected. That is, the user before entering the toilet room can be detected. When detecting the human body, the room entry detection sensor 440 outputs a signal SG2 indicating that the human body has been detected to the control unit 410.

  The room temperature detection sensor 460 detects the room temperature of the toilet room and outputs a signal SG4 including room temperature information to the control unit 410.

  In the toilet apparatus 10 shown in FIG. 1, a recessed portion 441 is formed on the upper surface of the heating toilet seat function unit 400, and an entrance detection sensor 440 and a room temperature detection sensor 460 are provided so as to be partially embedded in the recessed portion 441. It has been.

  When the toilet lid 300 is closed, the room entry detection sensor 440 detects the user's room entry through the transmission window 301 provided near the base. In addition, the seating detection sensor 420 and the human body detection sensor 430 are provided in a central portion in front of the heating toilet seat function unit 400. However, the installation forms of the seating detection sensor 420, the human body detection sensor 430, and the entrance detection sensor 440 are not limited to these, and can be changed as appropriate.

  The room temperature detection sensor 460 is not limited to the inside of the heating toilet seat function unit 400, and may be provided inside the operation unit 600 such as a remote controller provided separately from the heating toilet seat function unit 400, for example. . The room temperature detection sensor 460 only needs to detect the room temperature of the toilet room.

  The heating toilet seat function unit 400 further includes a toilet lid driving device 450 that opens and closes the toilet lid 300. For example, the toilet lid driving device 450 is installed in the vicinity of a position where the toilet lid 300 is pivotally supported with respect to the heating toilet seat function unit 400, and opens and closes the toilet lid 300 according to a signal from the control unit 410.

  The opening / closing operation of the toilet lid 300 may be operated by an operation unit 600 provided separately from the heating toilet seat function unit 400. In this case, the control unit 410 controls the driving of the toilet lid driving device 450 based on the signal transmitted from the operation unit 600, and opens and closes the toilet lid 300.

  Moreover, the heating toilet seat function part 400 may add the function part as a sanitary washing apparatus. That is, the heating toilet seat function unit 400 may appropriately include a sanitary washing function unit having a water discharge nozzle (not shown) that ejects water (hot water or cold water) toward the “butt” of the user sitting on the toilet seat 200. .

  Further, the heating toilet seat function unit 400 includes a “warm air drying function”, a “deodorizing unit”, an “indoor heating unit”, etc., which blow and dry warm air toward the “butt” of the user sitting on the toilet seat 200 These various mechanisms may be provided as appropriate. At this time, an exhaust port 443 from the deodorizing unit and an exhaust port 445 from the indoor heating unit are appropriately provided on the side surface of the heating toilet seat function unit 400. However, the sanitary washing function unit and other additional function units are not necessarily provided.

  The toilet bowl 800 and the heated toilet seat device 100 are controlled by a user instruction received by the operation unit 600. The operation unit 600 includes an opening / closing button for the toilet lid 300, a washing button for flowing washing water to the toilet bowl 800, a button for setting and changing the operation mode, and various settings (setting temperature, standby temperature, water temperature, A button BP for starting water discharge, stopping water discharge, starting water discharge, starting and stopping the drying function, and the like is provided. In addition, the operation unit 600 may be provided with a display unit DP that displays setting contents and operation status, and an output unit OP such as a speaker that notifies the state.

  Control unit 410 stops energization to heating unit 210 or reduces the energization amount when not in use to set the seating surface SF of toilet seat 200 to a lower temperature, and increases the energization amount to heating unit 210 during use. By rapidly heating the seating surface SF of the toilet seat 200, an immediate warming operation mode in which the temperature of the seating surface SF is raised to an appropriate temperature can be executed.

  The control unit 410 detects the user based on the detection result of the human body detection sensor 430 in a standby state in which the energization amount to the heating unit 210 is suppressed. When the human body detection sensor 430 detects a user, the control unit 410 increases the amount of current supplied to the heating unit 210 and heats the temperature of the seating surface SF of the toilet seat 200 to a preset temperature set in advance by the operation unit 600 or the like. .

  At this time, the time from when the user is detected by the human body detection sensor 430 until the user is seated on the toilet seat 200 is obtained in advance by statistics. The controller 410 completes the heating to the set temperature in a time shorter than this time. Thereby, it can suppress that a user sits on the toilet seat 200 with the temperature of the seating surface SF being low. It is possible to suppress the user from experiencing rapid heating from the temperature in the standby state to the set temperature.

  For example, the control unit 410 determines whether or not the temperature of the seating surface SF has increased to the set temperature based on the detection result of the temperature detection sensor 220. When the controller 410 confirms that the temperature has risen to the set temperature, the controller 410 controls the energization amount to the heating unit 210 so that the temperature of the seating surface SF becomes substantially constant at the set temperature. That is, the control unit 410 performs control to keep the temperature of the seating surface SF at the set temperature after raising the temperature of the seating surface SF to the set temperature. Thereby, the toilet seat 200 having a comfortable temperature can be provided to the user.

  Further, for example, the control unit 410 detects that the user has left the toilet seat 200 based on the detection result of the seating detection sensor 420, and in response to this detection, the controller 410 waits for the temperature of the seating surface SF from the set temperature. Reduce to the temperature of.

  The control unit 410 is not limited to the immediate warming operation mode, and may perform a warming operation mode in which, for example, the temperature of the seating surface SF is always kept at a set temperature. For example, the controller 410 may be configured to switch between a plurality of operation modes such as an immediate warm operation mode and a heat retention operation mode.

FIG. 3 is an exploded perspective view schematically illustrating the toilet seat according to the embodiment.
FIG. 4 is a partial cross-sectional view schematically showing a part of the toilet seat according to the embodiment.
FIG. 4 schematically shows a cross section taken along line A1-A2 of FIG.
As illustrated in FIGS. 3 and 4, the toilet seat 200 includes a seating portion 230, a bottom portion 240, and a load support portion 250.

  The seating part 230 has a seating surface SF and a back surface BF on the opposite side of the seating surface SF. The bottom portion 240 has a facing surface FF that faces the back surface BF, and covers the back surface BF with the facing surface FF, thereby forming a space (hereinafter referred to as an internal space SP) surrounded by the back surface BF and the facing surface FF. To do. The load support portion 250 is provided in the internal space SP and supports the seating portion 230.

  As described above, the toilet seat 200 includes the heating unit 210. The heating unit 210 is provided on the back surface BF of the seating unit 230 in the internal space SP. The heating unit 210 has, for example, a sheet shape and is attached to the back surface BF. For example, the heating unit 210 is provided on substantially the entire back surface BF, and warms the entire seating unit 230 from the inside.

  Each of the seating portion 230, the bottom portion 240, and the load support portion 250 has openings 230a, 240a, and 250a. The shape of the seating portion 230 and the bottom portion 240 viewed from above is substantially the same as the shape of the toilet seat 200 viewed from above. That is, the shape of the seating portion 230 and the bottom portion 240 viewed from above is an annular shape or a U shape. The opening 200 a of the toilet seat 200 is formed by the opening 230 a of the seating portion 230 and the opening 240 a of the bottom portion 240.

  In this example, the shape of the load support portion 250 as viewed from above is annular, like the seating portion 230 and the bottom portion 240. For example, the load support portion 250 may be formed in a U shape with respect to the annular seat portion 230 and the bottom portion 240. Further, in this example, one load support portion 250 that is continuous along the outer edges of the seating portion 230 and the bottom portion 240 is provided. Without being limited to this, the load support portion 250 may be divided into a plurality of parts. In other words, the toilet seat 200 may have a plurality of load support portions 250.

  The seating portion 230 has an open box shape that opens downward. The cross-sectional shape of the seating portion 230 is a substantially arc shape. The seating portion 230 has a plate shape curved in an arc shape. The bottom part 240 closes the opening end of the seating part 230. Thereby, the interior space SP is formed by the seating portion 230 and the bottom portion 240. On the contrary, the bottom 240 may be formed in an open box shape opened upward, and the opening end of the bottom 240 may be closed by the seating portion 230. That is, at least one of the seating part 230 and the bottom part 240 is formed in an open box shape, and the other end is closed. As a result, the internal space SP can be formed.

  The seating portion 230 and the bottom portion 240 are joined to each other by, for example, vibration welding. For the seating portion 230 and the bottom portion 240, for example, thermoplastic resin such as polypropylene (PP), ABS (copolymer synthetic resin of acrylonitrile, butadiene and styrene), or polycarbonate (PC) is used. Thereby, vibration welding of the seating part 230 and the bottom part 240 becomes possible. For example, PP is used for the seating portion 230 and the bottom portion 240. Thereby, the manufacturing cost of the toilet seat 200 can be suppressed. Moreover, the material of the bottom part 240 is the same as the material of the seating part 230, for example. Thereby, the seating part 230 and the bottom part 240 can be easily joined by vibration welding. The material of the bottom portion 240 may be different from the material of the seating portion 230.

  The joining of the seating portion 230 and the bottom portion 240 is not limited to vibration welding, but may be another welding method, or adhesion using an adhesive. Or you may attach using holding members, such as a screw, and you may attach by engaging an engaging claw etc. mutually. However, when the bottom portion 240 is attached to the seating portion 230 using screws, engaging claws, etc., the joint surface between the seating portion 230 and the bottom portion 240 is filled with a sealing material or the like, and water or the like does not enter the internal space SP. It is preferable to do so. The internal space SP is preferably sealed.

  The seating portion 230 includes, for example, an annular or U-shaped upper plate portion 231, an outer edge portion 232 that extends downward from the outer edge of the upper plate portion 231, and an inner edge portion 233 that extends downward from the inner edge of the upper plate portion 231. Have.

  The thickness t1 of the upper plate portion 231 is, for example, 1 mm or more and 3 mm or less. More preferably, it is 1.5 mm. Accordingly, it is possible to obtain an appropriate strength in the upper plate portion 231, reduce the heat capacity of the upper plate portion 231, and suppress power consumption accompanying heating of the seating portion 230. In particular, when the seating section 230 is heated in the immediate warming operation mode, by setting the thickness t1 within the above range, the power consumption during rapid heating is suppressed and the time required for temperature rise is shortened. can do.

  The thickness t2 of the outer edge portion 232 is, for example, not less than 4 mm and not more than 8 mm. A thickness t3 of the inner edge portion 233 is, for example, not less than 4 mm and not more than 8 mm. The thicknesses t2 and t3 are more preferably 6 mm. The thickness t2 of the outer edge portion 232 and the thickness t3 of the inner edge portion 233 are set to be thicker than the thickness t1 of the upper plate portion 231. Thereby, for example, when the seating portion 230 and the bottom portion 240 are vibration welded, an appropriate joint surface can be obtained. The seating part 230 and the bottom part 240 can be joined appropriately. Further, by setting the thicknesses t2 and t3 in the above range, an increase in the heat capacity of the seating portion 230 can be suppressed.

  A plurality of attachment portions 240 b for attaching the load support portion 250 are provided on the facing surface FF of the bottom portion 240. Each attachment portion 240b is, for example, a substantially cylindrical boss protruding upward from the facing surface FF. Each attachment part 240b has a screw hole, for example.

  The load support portion 250 has a plurality of attached portions 250 b provided corresponding to the attachment portions 240 b of the bottom portion 240. Each attached portion 250b is, for example, a through hole for inserting a screw. The load support part 250 is attached to the bottom part 240 by, for example, placing it on the facing surface FF and screwing it from above via the attachment parts 240b and the attachment parts 250b.

  Thus, the load support part 250 is attached to the bottom part 240. Therefore, when performing vibration welding between the seating portion 230 and the bottom portion 240, the load support portion 250 moves integrally with the bottom portion 240. In addition, the attachment method of the load support part 250 is not restricted to screwing, and may be any method that can attach the load support part 250 to the bottom part 240.

  For the load support portion 250, for example, a resin material such as PP is used. The material of the load support portion 250 is substantially the same as the material of the bottom portion 240, for example. The material of the load support portion 250 may be different from the material of the bottom portion 240.

  The load support portion 250 includes a first plate portion 251 and a plurality of second plate portions 252. The first plate portion 251 extends in a direction parallel to the back surface BF of the seating portion 230, and partitions a part of the internal space SP up and down. Each second plate portion 252 extends in a direction perpendicular to the facing surface FF of the bottom portion 240. Each of the second plate portions 252 has a lower end 252a that contacts the facing surface FF of the bottom portion 240 and an upper end 252b that is positioned above the first plate portion 251. The upper end 252b of each second plate portion 252 is disposed close to the back surface BF. Each second plate portion 252 partitions, for example, a part of the internal space SP in the horizontal direction.

  A gap is provided between the first plate portion 251 and the back surface BF. Similarly, a gap is provided between each second plate portion 252 and the back surface BF. That is, the 1st board part 251 and each 2nd board part 252 are spaced apart from the back surface BF. The load support part 250 is separated from the back surface BF.

  As described above, a resin material such as a thermoplastic resin is used for the seating portion 230. The seating portion 230 has elasticity and bends downward when the user is seated. Each of the second plate portions 252 abuts the upper end 252b against the back surface BF of the seating portion 230 bent downward. As described above, the load support portion 250 supports the seating portion 230 by the second plate portions 252.

  Here, in the present specification, “extending in the direction” is not limited to the case where it completely coincides with the direction, but includes the case where it has a component extending in the direction. That is, the 1st board part 251 should just have the component extended in the direction parallel to the back surface BF at least. The extending direction of the first plate portion 251 may be inclined with respect to the back surface BF. Each second plate portion 252 only needs to have a component extending in a direction perpendicular to at least the facing surface FF. The extending direction of each second plate portion 252 may be inclined with respect to the direction perpendicular to the facing surface FF. In addition, the extending direction of each second plate portion 252 may be different. In other words, each second plate portion 252 may be parallel or non-parallel.

  Further, in the present specification, “contact” is not limited to direct contact, but also includes mechanical contact via another member. For example, the lower end 252a of the second plate portion 252 may contact the facing surface FF via a sheet-like member (for example, a label) attached to the facing surface FF.

  The first plate portion 251 extends in a direction parallel to the back surface BF and extends along the outer edge of the facing surface FF. The first plate portion 251 is, for example, an annular shape that extends along the outer edge of the facing surface FF. The opening part 250a of the load support part 250 is formed by, for example, the inner edge of the first plate part 251.

  The load support part 250 includes, for example, two second plate parts 252 arranged in the width direction. Here, more specifically, the “width direction” refers to a direction extending along the outer edges of the seating portion 230 and the bottom portion 240 of the first plate portion 251 (a direction perpendicular to the paper surface in FIG. 4) and the vertical direction. It is a vertical direction (the left-right direction in FIG. 4).

  The two second plate portions 252 arranged in the width direction extend along the outer edge of the facing surface FF. Thereby, the internal space SP of the toilet seat 200 is divided into approximately three regions by these two second plate portions 252. That is, the internal space SP includes the first region R1 inside the second plate portion 252 located inside, the second region R2 between the two second plate portions 252 and the second plate portion located outside. And the third region R3 outside the region 252.

  The first region R1 is a region on the inner side of the second plate portion 252 located on the innermost side in the internal space SP. In other words, the first region R1 is the innermost region among the plurality of regions of the inner space SP divided by the plurality of second plate portions 252. The volume of the first region R1 is less than 50% of the volume of the entire internal space SP. In this example, the volume of the first region R1 is less than 30% of the total volume of the internal space SP. The volume of the first region R1 is smaller than the volume of the second region R2 and the volume of the third region R3. The volume of the first region R1 is the smallest among the plurality of regions of the internal space SP divided by the plurality of second plate portions 252. The volume of the inner area of the internal space SP is smaller than the volume of the outer area.

  The load support portion 250 further includes a third plate portion 253 that extends downward from the end portion of the first plate portion 251. The load support portion 250 includes, for example, a pair of third plate portions 253 provided at both ends in the width direction of the first plate portion 251. Both end portions in the width direction of the first plate portion 251 and the respective third plate portions 253 are arranged close to the back surface BF.

  The outer third plate portion 253 of the pair of third plate portions 253 faces a part of the outer edge portion 232 of the seating portion 230. The inner third plate portion 253 faces a part of the inner edge portion 233 of the seating portion 230. The outer third plate portion 253 faces a portion of the heating unit 210 that is attached to the outer edge portion 232. The inner third plate portion 253 faces a portion of the heating unit 210 that is attached to the inner edge 233.

  In addition, a gap is provided between the lower end 253 a of each third plate portion 253 and the facing surface FF of the bottom portion 240. In other words, each third plate portion 253 is separated from the facing surface FF.

  The bottom part 240 has the 4th board part 241 extended upwards from the opposing surface FF. The fourth plate portion 241 is disposed in the vicinity of the third plate portion 253. In this example, a pair of fourth plate portions 241 corresponding to each of the pair of third plate portions 253 is provided on the bottom portion 240. Each fourth plate portion 241 has an upper end 241a located above the lower end 253a of each third plate portion 253. The upper end 241a of the fourth plate part 241 is positioned above at least the lower end 253a of the third plate part 253 that is close thereto.

  Each 3rd board part 253 is provided in the load support part 250 as needed, and can be abbreviate | omitted. Similarly, each 4th board part 241 is provided in the bottom part 240 as needed, and can be abbreviate | omitted. For example, only one of the pair of third plate portions 253 may be provided on the load support portion 250. For example, you may provide the 3rd board part 253 only in the inner part with a large area facing the heating part 210. FIG.

  In this example, a pair of fourth plate portions 241 is provided between the pair of third plate portions 253. On the contrary, a pair of third plate portions 253 may be provided between the pair of fourth plate portions 241. For example, when the first plate portion 251 is U-shaped, the third plate portion 253 and the fourth plate portion 241 may be one continuous member along the edge of the first plate portion 251.

  The distance d1 in the width direction in the orthogonal cross section between the load support portion 250 and the outer edge portion 232 of the seating portion 230 is, for example, 1 mm or more and 5 mm or less. The distance d1 is a distance in the width direction between the third plate portion 253 and the outer edge portion 232, for example. When the third plate portion 253 is omitted, the distance d1 is the distance in the width direction between the end portion in the width direction of the first plate portion 251 and the outer edge portion 232. In other words, the distance d1 is the length of the gap provided between the first plate portion 251 and the back surface BF. By setting the distance d1 to 1 mm or more, for example, contact between the load support portion 250 and the seating portion 230 during vibration welding can be suppressed. By setting the distance d1 to 5 mm or less, for example, air convection in the internal space SP can be suppressed.

  The distance d2 in the width direction in the orthogonal cross section between the load support portion 250 and the inner edge portion 233 of the seating portion 230 is, for example, not less than 1 mm and not more than 5 mm, similarly to the distance d1.

  The vertical distance d3 between the upper end 252b of the second plate portion 252 and the back surface BF is, for example, not less than 1 mm and not more than 3 mm. In other words, the distance d3 is the length of the gap provided between the upper end 252b of the second plate portion 252 and the back surface BF. By setting the distance d3 to be 1 mm or more, for example, contact between the load support portion 250 and the seating portion 230 during vibration welding can be suppressed. By setting the distance d3 to 3 mm or less, for example, excessive bending of the seating portion 230 can be suppressed. For example, breakage of the seating portion 230 can be suppressed.

  The vertical distance d4 between the lower end 253a of the third plate portion 253 and the facing surface FF is, for example, not less than 1 mm and not more than 3 mm. In other words, the distance d4 is the length of the gap provided between the lower end 253a of the third plate portion 253 and the facing surface FF. By setting the distance d4 to be 1 mm or more, for example, contact between the lower end 253a of the third plate portion 253 and the facing surface FF can be suppressed. Moreover, it can suppress that the heat of the heating part 210 escapes downward via the 3rd board part 253. FIG. By setting the distance d4 to 3 mm or less, for example, convection of air in the internal space SP can be suppressed.

  The distance d5 in the width direction between the third plate portion 253 and the fourth plate portion 241 is, for example, 1 mm or more and 3 mm or less. By setting the distance d5 to be 1 mm or more, for example, the heat of the heating unit 210 can be prevented from escaping downward via the third plate portion 253 and the fourth plate portion 241. By setting the distance d5 to 3 mm or less, for example, air convection in the internal space SP can be suppressed.

FIG. 5 is a plan view schematically illustrating the heating unit according to the embodiment.
FIG. 6 is a partial cross-sectional view schematically illustrating a part of the heating unit according to the embodiment.
FIG. 7 is a plan view schematically illustrating a state in which the extending portion of the heating unit according to the embodiment is folded and a state in which the second temperature detecting unit of the heating unit is folded.
FIG. 8 is a cross-sectional view of a main part of the connection portion according to the embodiment.
FIG. 9 is a cross-sectional view of a main part of the safety device according to the embodiment.

  As illustrated in FIGS. 5 and 6, the heating unit 210 includes a first foil body 211, a second foil body 212, and a cord-shaped heating element 214. The heating element 214 is provided between the first foil body 211 and the second foil body 212. As shown in FIG. 7, the heating element 214 is connected to the lead wire 271 through the connection portion 270. The heating element 214 generates heat when power is supplied from the lead wire 271. In the present embodiment, the heating element 214 is a linear heater.

  A first adhesive 216 is provided between the second foil body 212 and the heating element 214 and between the first foil body 211 and the second foil body 212. The first adhesive 216 joins the second foil body 212 and the heating element 214. The first adhesive 216 joins the first foil body 211 and the second foil body 212. As described above, the heating element 214 is bonded and sandwiched between the first foil body 211 and the second foil body 212.

A second adhesive 217 is provided between the first foil body 211 and the back surface BF of the seating portion 230. The second adhesive 217 joins the first foil body 211 and the back surface BF of the seating portion 230. Thereby, the heating unit 210 is provided on the back surface BF of the seating unit 230.
5 and 7 are views seen from the inner space SP side toward the seating portion 230 in a state of being provided on the back surface BF of the seating portion 230. FIG.

  Each of the first foil body 211 and the second foil body 212 is a metal foil. The thermal conductivity of the metal foil is higher than the thermal conductivity of the seating portion 230. Examples of the first foil body 211 and the second foil body 212 include aluminum foil and copper foil.

  As shown in FIG. 5, the heating element 214 meanders between the first foil body 211 and the second foil body 212, and extends over substantially the entire first foil body 211 and the second foil body 212. Be placed. Further, as illustrated in FIG. 4, the heating unit 210 is provided over substantially the entire back surface BF of the seating unit 230. The heating element 214 meanders under the seating portion 230 and is disposed over substantially the entire back surface BF.

  Further, as illustrated in FIG. 5, the heating element 214 is disposed on the back surface BF at a position where it does not contact the upper end 252 b of each second plate portion 252. In other words, the heating element 214 is disposed at a position that does not overlap the second plate portions 252 in the vertical direction. The arrangement pattern of the heating elements 214 is not limited to the example shown in FIG. 5, and can be any pattern that can be arranged over substantially the entire back surface BF of the seating portion 230 and does not contact the upper end 252 b of each second plate portion 252. It's okay. In other words, the shape and arrangement of each second plate portion 252 may be any shape and arrangement that can appropriately support the seating portion 230 and that do not contact the heating element 214. The heating unit 210 is not limited to the one having the cord-like heating element 214, and may be any configuration that is provided on the back surface BF and can heat substantially the entire back surface BF.

  The heating unit 210 includes a central portion 210a, an outer portion 210b, and an inner portion 210c. The central portion 210a faces the upper plate portion 231 of the seating portion 230 in a state where it is bonded to the back surface BF. The outer portion 210b faces the outer edge portion 232 of the seating portion 230 in a state where it is adhered to the back surface BF. The inner portion 210c faces the inner edge portion 233 of the seating portion 230 in a state where it is adhered to the back surface BF.

  The density of the heating element 214 provided in the outer portion 210b is higher than the density of the heating element 214 provided in the central portion 210a. The density of the heating element 214 provided in the inner portion 210c is higher than the density of the heating element 214 provided in the central portion 210a. In other words, the heating element 214 provided in the central portion 210a is not a complicated meandering shape, and the heating element 214 is configured with a simple configuration. Therefore, manufacture and assembly of the heating unit 210 are easy.

  As described above, the thickness t2 of the outer edge portion 232 and the thickness t3 of the inner edge portion 233 are thicker than the thickness t1 of the upper plate portion 231. Therefore, the uniformity of the temperature of the seating portion 230 can be increased by increasing the density of the heating elements 214 of the outer portion 210b and the inner portion 210c than the density of the heating elements 214 of the central portion 210a. For example, it can be heated substantially uniformly over substantially the entire seating portion 230.

  As shown in FIG. 5, the first foil body 211 and two extending portions 272 made of the second adhesive are provided behind the heating unit 210. As shown in FIG. 7, the extended portion 272 is connected to the second portion 270 between the heating element 214 that is a linear heater and the lead wire 271 in the folded state toward the inner space SP. It is fixed at a position where it does not interfere with the plate portion 252. In other words, the connection part 270 is covered with the first foil body 211 and fixed to the heating part 210.

  Specifically, as illustrated in FIG. 8, the connection portion 270 is a state in which the first foil body 211 provided with the second adhesive 217 as the extension portion 272 is folded back to the internal space SP side. And covered with the first foil body. Further, on the inner space SP side of the folded second adhesive 217, the third foil body 213 provided with the third adhesive 218 is provided, and the third adhesive 218 is provided as the second adhesive 217. It is provided so as to face. The connection part 270 is fixed to the heating part 210 with an extension part 272 and a third foil body 213. A connecting portion 270 between the heating element 214 and the lead wire 271 that is a linear heater is formed by soldering, caulking, and covering the heating element 214 and the lead wire 271 with a waterproof tube.

  In addition, the connection part 270 is good also as a structure covered with the 1st foil body 211 in the state fixed to the 1st foil body 211 using the hot-melt-adhesive agent. With this configuration, the connection portion 270 is securely fixed at a position where it does not interfere with each second plate portion 252. Further, when the hot melt adhesive is not used, the connection portion 270 covered with the first foil body 211 can move freely to some extent, so that the workability of the operator's folding work of the extension portion 272 is improved. Will improve.

  On the other hand, as shown in FIG. 5, a temperature measuring unit 263 is provided on the left rear side of the heating unit 210. The temperature measuring unit 263 is formed by a first temperature measuring unit 261, a second temperature measuring unit 262, and a turn-back unit 264. The temperature measuring unit 263 is provided with a safety device 260 (in this embodiment, a thermal fuse) that shuts off the power supply when an abnormal temperature is reached.

  The heating element 214 which is a linear heater of the temperature measuring unit 263 is not a meandering shape described above, but is constituted by a spiral linear heater. The spiral linear heater is composed of four spirals having a substantially round configuration, and is formed in line symmetry with respect to the folded portion 264. Further, the folded portion 264 of the temperature detecting unit 263 is formed substantially parallel to the outer edge of the seating unit 230. Note that the number of spiral linear heaters in the temperature measuring unit 263 is not limited to four and may be plural. Further, the spiral linear heater is not limited to a substantially one-round configuration, and may have a configuration such as a substantially half-circumferential configuration or a substantially two-circular configuration.

  As shown in FIG. 7, the temperature measuring unit 263 is configured such that the second temperature measuring unit 262 is folded back to the inner space SP side with respect to the folded-back unit 264, and the safety device 260 is connected to the first temperature measuring unit 261. The second temperature detecting unit 262 is fixed to the heating unit 210 while being sandwiched between the second temperature measuring unit 262 and the second temperature measuring unit 262. Specifically, as shown in FIG. 9, the safety device 260 is provided in a state sandwiched between the second temperature detection unit 262 and the first temperature detection unit 261, and is folded by the folding unit 264. A fourth foil body 215 provided with a fourth adhesive 219 is provided on the inner space SP side of the second adhesive 217 of the second temperature measuring unit 262. The fourth foil body 215 is provided such that the fourth adhesive 219 is opposed to the second adhesive 217, and is heated by the fourth adhesive 219 and the second adhesive 217. It is fixed to the part 210.

  In addition, you may provide thermally conductive grease between the 1st temperature detection part 261 and the 2nd temperature detection part 262 where the safety device 260 is provided. By providing the thermally conductive grease, the heat of the first temperature measuring unit 261 and the second temperature measuring unit 262 is easily conducted to the safety device 260, and the reliability of the safety device is improved. In addition, between the first temperature measuring unit 261 and the second temperature measuring unit 262 where the safety device 260 is provided, the safety device 260 and the first temperature measuring unit 261 or the second temperature measuring unit 262 are provided. You may provide the double-sided tape which adhere | attaches. By providing the double-faced tape, the safety device 262 is firmly fixed, and the heat of the first temperature measuring unit 261 and the second temperature measuring unit 262 is easily conducted to the safety device 260, and the reliability of the safety device is improved. improves.

  As described above, in the heating toilet seat device 100 according to the present embodiment, the load support portion 250 supports the seating portion 230. Therefore, even when the seating portion 230 is thin and the heat capacity is reduced, the load at the time of sitting is reduced. Sufficient strength can be ensured. And the load support part 250 has the 1st board part 251 extended in the direction parallel to the back surface BF of the seating part 230, and partitions off a part of internal space SP up and down. Thereby, it is possible to easily generate heat in the internal space SP, and it is possible to suppress the downward heat dissipation of the heat of the heating unit 210. Therefore, it is not necessary to separately provide a heat insulating material or the like, and the heat insulating performance can be improved with a simple configuration.

  Further, by providing gaps between the first plate portion 251 and the back surface BF of the load support portion 250 and between the second plate portions 252 and the back surface BF, the heat of the heating unit 210 is increased. Escape to the bottom via 250 can be suppressed.

  Further, by providing a gap as described above and separating the load support part 250 from the seating part 230, the seating part 230 and the bottom part 240 can be appropriately joined by vibration welding.

  Further, by providing the third plate portion 253 in the load support portion 250, it is possible to further suppress the convection of the air in the internal space SP and to easily heat the internal space SP. That is, the heat insulation performance can be further improved.

  Further, by providing a gap between the lower end 253a of the third plate portion 253 and the facing surface FF, it is possible to suppress the heat of the heating portion from escaping downward via the third plate portion 253. Further, when both the lower end 252a of the second plate portion 252 and the lower end 253a of the third plate portion 253 are brought into contact with the facing surface FF, for example, the lower end of the second plate portion 252 due to a dimensional error. There is a concern that 252a may float from the facing surface FF. When the lower end 252a of the second plate portion 252 floats from the facing surface FF, the lower end 252a of the second plate portion 252 abuts against the facing surface FF when seated, which causes noise. Therefore, as described above, by separating the lower end 253a of the third plate portion 253 from the facing surface FF, it is possible to suppress the generation of abnormal noise during sitting.

  Moreover, by providing the 4th board part 241 in the bottom part 240, it can suppress that a heat | fever escapes from the clearance gap between the lower end 253a of the 3rd board part 253, and the opposing surface FF, and can improve heat insulation performance more. .

  Further, by setting the volume of the first region R1 to less than 50% of the total volume of the internal space SP, it is possible to further improve the heat insulation performance of the inner part where the body of the user who is seated is easy to contact.

  Further, by arranging the heating element 214 of the heating unit 210 at a position that does not contact the upper end 252b of the second plate part 252, the heating element 214 is sandwiched between the back surface BF and the upper end 252b of the second plate part 252 when seated. It is possible to prevent the heating element 214 from being disconnected.

  In addition, since the connecting portion 270 is covered with the first foil body 211 and fixed to the heating portion 210, the connecting portion is displaced by an operator and the seating portion 230 and the bottom portion 240 are assembled. In addition, it is possible to prevent the connection part 270 from being sandwiched between the seating part 230 and the bottom part 240 and being disconnected.

  In addition, since the connecting portion 270 is covered with the first foil body 211 and fixed to the heating portion 210 in a state where the extending portion 272 is folded back, the connecting portion 270 has a simple structure and the heating portion 210 Fixed to. In addition, the folded crease serves as a mark, which makes it easier for the operator to determine the fixed position of the connecting portion and improves workability.

  In addition, since the third foil body 213 is provided in the extension part 272, the connection part 217 can be easily fixed to the heating part 210.

  Moreover, since the connection part 270 is fixed to the heating part 210, avoiding the load support part 250, the disconnection of the connection part 270 can be suppressed.

  In addition, since the temperature measuring unit 263 is provided with a plurality of spiral central portions that increase in temperature, the temperature distribution of the entire temperature measuring unit 263 is easily uniformized.

  In addition, since the spiral linear heater of the temperature measuring unit 263 is line-symmetrical at the folding unit 264, the operator can easily fold the second temperature measuring unit 262 based on the folding unit 264, so that workability is improved. As a result, the reliability of the safety device 260 is improved.

  Further, since the folded portion 264 is formed substantially parallel to the outer edge of the seating portion 230, the operator can easily fold the second temperature measuring unit 262 based on the folded portion 264, so that workability is improved and safety is improved. The reliability of the device is improved.

  The spiral linear heater has a substantially one-round configuration, and is not a spiral having a plurality of vortices, so that the temperature measuring unit 263 can be formed with a simple configuration. Therefore, the temperature measuring unit 263 can be formed with a simple configuration.

  DESCRIPTION OF SYMBOLS 10 Toilet apparatus, 100 Heating toilet seat apparatus, 200 Toilet seat, 210 Heating part, 211 1st foil body, 212 2nd foil body, 213 3rd foil body, 214 Heat generating body, 215 4th foil body, 216 1st foil body 1 adhesive, 217 second adhesive, 218 third adhesive, 219 fourth adhesive, 220 temperature detection sensor, 230 seating part, 231 top plate part, 232 outer edge part, 233 inner edge part, 240 bottom part , 241 4th plate portion, 250 load support portion, 251 1st plate portion, 252 2nd plate portion, 253 3rd plate portion, 260 safety device, 261 1st temperature detection portion, 262 2nd temperature detection portion, 263 temperature detection Part, 264 folding part, 270 connection part, 271 lead wire, 272 extension part, 1300 toilet lid, 301 permeation window, 400 heating toilet seat function part, 410 control 410, 420 Seating detection sensor, 430 Human body detection sensor, 440 Entrance detection sensor, 441 Recessed portion, 443 Exhaust port, 445 Discharge port, 460 Room temperature detection sensor, 600 Operation unit, 800 Western-style sitting toilet, 801 Bowl unit, BF Back surface , FF facing surface, SF seating surface, SP internal space

Claims (4)

A seating portion having a seating surface and a back surface opposite to the seating surface;
A bottom portion having a facing surface opposite to the back surface, the bottom surface having a space surrounded by the back surface and the facing surface formed by covering the back surface with the facing surface;
A heating unit provided on the back surface, having a first foil body, a second foil body, and a linear heater provided between the first foil body and the second foil body When,
A lead wire connected to the linear heater and supplying power to the linear heater;
A heating toilet seat device comprising:
A connecting portion between the linear heater and the lead wire is covered with the first foil body provided on the back surface and fixed to the heating unit. The first foil body includes an extension portion that does not adhere to the second foil body,
The heating toilet seat device according to claim 1, wherein the connecting portion is covered with the first foil body in a state where the extending portion is folded back to the space side. A first adhesive is provided between the second foil body and the linear heater,
Between the first foil body and the back surface, a second adhesive is provided,
A third foil body is provided on the space side of the extension part,
The heating toilet seat device according to claim 2, wherein a third adhesive is provided between the third foil body and the second adhesive.   The heating toilet seat device according to any one of claims 1 to 3, wherein a load supporting portion that supports the seating portion is provided in the space.

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