JP2007185415A - Heating toilet seat device - Google Patents

Heating toilet seat device Download PDF

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Publication number
JP2007185415A
JP2007185415A JP2006007077A JP2006007077A JP2007185415A JP 2007185415 A JP2007185415 A JP 2007185415A JP 2006007077 A JP2006007077 A JP 2006007077A JP 2006007077 A JP2006007077 A JP 2006007077A JP 2007185415 A JP2007185415 A JP 2007185415A
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Prior art keywords
toilet seat
sheet
heating element
seat device
heating
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JP2006007077A
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JP5140928B2 (en
Inventor
Kaori Hayashi
香緒里 林
Hideo Shinoda
英穂 篠田
Eiichi Tanaka
栄一 田中
Noboru Takuri
昇 田栗
Toru Ueno
徹 上野
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority to JP2006007077A priority Critical patent/JP5140928B2/en
Priority to CN2006800371749A priority patent/CN101282673B/en
Priority to KR1020137034449A priority patent/KR101442144B1/en
Priority to PCT/JP2006/320123 priority patent/WO2007040279A1/en
Priority to KR1020087008034A priority patent/KR101441579B1/en
Publication of JP2007185415A publication Critical patent/JP2007185415A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a comfortable and energy-saving toilet seat device capable of absorbing impact caused when a user sits on a toilet seat, providing comfortable feeling to sit even if the user sits thereon over a long time, and avoiding the usage of useless electric power for heating the toilet seat. <P>SOLUTION: The toilet seat is provided with a sitting part which includes an elastic member 13 and a sheet 11 for covering the elastic member 13, so as to be arranged on the upper surface of the toilet seat 6 freely removably mounted on the upper surface of a toilet bowl 10. A sheet heating element 12, which is obtained by forming an electrode 24 and a polymeric resistance body 23 by printing pattern, is stored inside the sitting part. The sheet heating element 12 includes a flexible deformation absorbing means 32 which is changed to meet the flexible deformation of the sitting part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、便器上面に設けられ、使用者の体形に沿うように変形する弾性体層を有する便座装置に関し、特に、ヒータ内蔵構成に関するものである。   The present invention relates to a toilet seat apparatus having an elastic body layer provided on the upper surface of a toilet bowl and deformed so as to conform to a body shape of a user, and more particularly to a heater built-in configuration.

従来、この種の便座装置としては、便座が使用者の皮膚と接触する上面から表皮材、低反発物質からなる層、合成樹脂基材の順に構成されたものが提案されている(例えば、特許文献1参照)。
そして、上記特許文献1のものは、着座時の衝撃を吸収するとともに、着座状態の座り心地のよい便座装置を提供するものである。
また、便座装置の暖房装置としては、図10に示すように環状の便座の裏面に、この裏面の内周縁部と外周縁部にそれぞれループ状に配置されたループ電極層と、これら内外周のループ電極層からそれぞれ複数本ずつ交互にほぼ一定間隔で、対向するループ電極層に向けて枝状に突設された枝電極層と、これら内外周のループ電極層に囲まれた環状の領域に、少なくとも各枝電極層のほぼ全体と重ねて形成された面状発熱体層とが布設された便座ヒータが提案されている(例えば、特許文献2参照)。
特開2005−102809号公報 特開平10−335051号公報
Conventionally, as this type of toilet seat device, an apparatus in which the toilet seat is configured in the order of an upper surface where the toilet seat comes into contact with the user's skin, a skin material, a layer made of a low-rebound material, and a synthetic resin base material has been proposed (for example, a patent) Reference 1).
And the thing of the said patent document 1 provides the toilet seat apparatus with a comfortable seating state while absorbing the impact at the time of seating.
Moreover, as a heating device of the toilet seat device, as shown in FIG. 10, on the back surface of the annular toilet seat, loop electrode layers arranged in a loop shape on the inner peripheral edge portion and the outer peripheral edge portion of the back surface, respectively, A plurality of each of the loop electrode layers are alternately arranged at substantially regular intervals, and branch electrode layers projecting in a branch shape toward the opposing loop electrode layers, and an annular region surrounded by the loop electrode layers on the inner and outer circumferences. There has been proposed a toilet seat heater in which a planar heating element layer formed so as to overlap at least almost the entire branch electrode layer is laid (see, for example, Patent Document 2).
JP 2005-102809 A Japanese Patent Laid-Open No. 10-335051

しかしながら、上記従来の構成において、特許文献1で提案されているように着座時の衝撃を吸収するとともに、着座状態の座り心地のよい便座装置を提供する目的で、便座の着座面に低反発物質からなる弾性部材を配設した構成にあっては、暖房ヒータを内蔵したものはなく、特許文献2で提案されているように便座の裏面側に各種ヒータを取り付ける構成が一般的であった。そして、上記従来技術を組み合わせて、便座の裏面側にヒータを取り付け、着座面に弾性部材を配設した場合、ヒータからの熱は合成樹脂基材、弾性部材を介して着座面に伝達されることになるため、弾性部材が断熱効果を奏することになり、十分な熱が伝達されず、暖房効果を発揮することができないという課題を有していた。   However, in the above conventional configuration, as proposed in Patent Document 1, a low-repulsion substance is applied to the seating surface of the toilet seat in order to absorb a shock at the time of sitting and to provide a comfortable seating device in a seated state. In the configuration in which the elastic member made of is provided, there is no one with a built-in heater, and a configuration in which various heaters are attached to the back side of the toilet seat as proposed in Patent Document 2 has been common. When a heater is attached to the back side of the toilet seat and an elastic member is disposed on the seating surface in combination with the above-described conventional technology, heat from the heater is transmitted to the seating surface via the synthetic resin base material and the elastic member. Therefore, the elastic member has a heat insulating effect, and there is a problem that sufficient heat is not transmitted and the heating effect cannot be exhibited.

また、弾性部材にヒータを内蔵することも考えられるが、この場合の構成としては、カーペットや電気毛布等で採用されているように、ヒータとして紐状ヒータを用いる構成が一般的である。その一例を図8に示すと、使用者の皮膚に接触する便座1の表面から表皮材2、紐状発熱体3、クッション層4、合成樹脂基材5の順に構成されている。しかし、便座ヒータ3が表皮材2と軟質樹脂層4の間に配置され、その便座ヒータ3の形状がチュービングヒータである場合、着座したときに便座にチュービングヒータのところだけ凸になった面が形成され、でこぼこ感が残るとともに、長く座っていると臀部に凸凹の型が残ってしまうなど実用性に欠いていた。また、クッション材にて構成された便座部が柔らかすぎることで剛性不足となり、使用者の体重を十分に支えきれない場合がある等の課題を有していた。   In addition, it is conceivable to incorporate a heater in the elastic member, but as a configuration in this case, a configuration in which a string heater is used as a heater is generally used as in a carpet or an electric blanket. One example is shown in FIG. 8, which is composed of a skin material 2, a string-like heating element 3, a cushion layer 4, and a synthetic resin base material 5 in this order from the surface of the toilet seat 1 that contacts the user's skin. However, when the toilet seat heater 3 is disposed between the skin material 2 and the soft resin layer 4 and the shape of the toilet seat heater 3 is a tubing heater, the surface of the toilet seat that is convex only at the tubing heater when seated is provided. As a result, the impression of bumpiness remained, and when sitting for a long time, a concave and convex mold remained on the buttocks. Moreover, since the toilet seat part comprised with the cushion material was too soft, it became inadequate in rigidity and had the subject that a user's weight could not be fully supported.

本発明は、上記課題を解決するものであり、着座時の衝撃を吸収しつつ、着座状態の座り心地が良く、かつ長時間の着座の際においても人体への影響度が小さいPTCヒータを内蔵した暖房機能付き便座装置を提供することを目的とするものである。   The present invention solves the above-described problems, and incorporates a PTC heater that absorbs an impact at the time of sitting, has a good sitting comfort, and has a small influence on the human body even when sitting for a long time. An object of the present invention is to provide a toilet seat device with a heating function.

前記従来の課題を解決するために、本発明の暖房便座装置は、便器の上面に載置された
便座の上面に、軟質樹脂等の弾性部材と該弾性部材を覆うシートで構成した着座部を形成し、着座部の内部に電極及び高分子抵抗体を印刷パターンで形成したPTC特性を有する面状発熱体を収納し、面状発熱体は、着座部の撓み変形に対して馴染むように変化する撓み変形吸収手段を有する構成としたものである。
In order to solve the above-described conventional problems, the heating toilet seat device according to the present invention includes a seating portion configured by an elastic member such as a soft resin and a sheet covering the elastic member on the upper surface of the toilet seat placed on the upper surface of the toilet. A sheet heating element having a PTC characteristic in which an electrode and a polymer resistor are formed in a printed pattern is housed inside the seating part, and the sheet heating element changes so as to adapt to the bending deformation of the seating part. It is set as the structure which has a bending deformation | transformation absorption means to do.

上記発明によれば、着座面に弾性部材を用いることで、着座時の衝撃を吸収しつつ、着座後の適度なクッション性を確保することができ、長時間座った場合でも臀部への負担を軽減することができる。併せて、印刷パターンで形成したシート状の面状発熱体を採用することで、着座面を形成する弾性部材表面とシートとの間に凹凸面を有することなく、フラットな状態で収納することができるため、良好な着座感を保って暖房用ヒータを内蔵することができるとともに、面状発熱体からの熱がシートを介して直に伝達され、かつ、弾性部材による断熱効果も相俟って、着座面を効率的に暖めることができる。さらに、面状発熱体に撓み変形吸収手段を設けた構成としているため、着座時に弾性部材が変形した場合でも、その変形に馴染むように面状発熱体が変化するため、パターン印刷された電極及び抵抗体に変形ストレスが印加されることがなく耐久性の向上を図ることができる。   According to the above invention, by using an elastic member on the seating surface, it is possible to secure an appropriate cushioning property after sitting while absorbing the impact at the time of sitting, and even when sitting for a long time, the burden on the buttocks Can be reduced. In addition, by adopting a sheet-like sheet heating element formed with a printing pattern, it can be stored in a flat state without an uneven surface between the elastic member surface forming the seating surface and the sheet. Therefore, it is possible to incorporate a heater for heating while maintaining a good seating feeling, heat from the sheet heating element is directly transmitted through the sheet, and a heat insulating effect by the elastic member. The seating surface can be efficiently warmed. Furthermore, since the sheet heating element is provided with a bending deformation absorbing means, even when the elastic member is deformed when seated, the sheet heating element changes so as to be adapted to the deformation. It is possible to improve the durability without applying deformation stress to the resistor.

本発明の暖房便座装置は、弾力性のある軟質部材により、着座時の衝撃を抑えつつ、着座後の適度なクッション性を確保することができ、長時間座った場合でも臀部への負担を軽減することができる。併せて、印刷パターンで形成したシート状の面状発熱体を採用することで、着座面を形成する弾性部材表面とシートとの間に凹凸面を有することなく、フラットな状態で収納することができるため、良好な着座感を保って暖房用ヒータを内蔵することができるとともに、面状発熱体からの熱がシートを介して直に伝達され、かつ、弾性部材による断熱効果も相俟って、着座面を効率的に暖めることができる。さらに、面状発熱体に撓み変形吸収手段を設けた構成としているため、着座時に弾性部材が変形した場合でも、その変形に馴染むように面状発熱体が変化するため、パターン印刷された電極及び抵抗体に変形ストレスが印加されることがなく耐久性の向上を図ることができる。そして、面状発熱体がPTC特性を有することで、所定温度まで急激に加熱し、その後、所定温度を維持するように自己制御を行うため、回路構成の簡素化と省エネルギー効果を確保することができる。   The heating toilet seat device of the present invention can secure an appropriate cushioning property after sitting while suppressing impact at the time of sitting by a flexible soft member, and reduces the burden on the buttocks even when sitting for a long time can do. In addition, by adopting a sheet-like sheet heating element formed with a printing pattern, it can be stored in a flat state without an uneven surface between the elastic member surface forming the seating surface and the sheet. Therefore, it is possible to incorporate a heater for heating while maintaining a good seating feeling, heat from the sheet heating element is directly transmitted through the sheet, and a heat insulating effect by the elastic member. The seating surface can be efficiently warmed. Furthermore, since the sheet heating element is provided with a bending deformation absorbing means, even when the elastic member is deformed at the time of sitting, the sheet heating element changes so as to adapt to the deformation. It is possible to improve the durability without applying deformation stress to the resistor. And, since the planar heating element has PTC characteristics, it is heated rapidly to a predetermined temperature, and then self-control is performed so as to maintain the predetermined temperature. it can.

第1の発明は、便器の上面に着脱自在に装着された便座の上面に、弾性部材と該弾性部材を覆うシートで構成した着座部を形成し、前記着座部の内部に電極及び高分子抵抗体を印刷パターンで形成した面状発熱体を収納し、前記面状発熱体は、着座部の撓み変形に対して馴染むように変化する撓み変形吸収手段を有する構成としたことを特徴とするものである。   According to a first aspect of the present invention, there is provided a seating portion formed of an elastic member and a sheet covering the elastic member on an upper surface of a toilet seat that is detachably mounted on the upper surface of the toilet bowl, and an electrode and a polymer resistor are provided in the seating portion. A sheet heating element formed by a printed pattern is accommodated, and the sheet heating element has a bending deformation absorbing means that changes so as to adapt to the bending deformation of the seating portion. It is.

そして、着座面に弾性部材を用いることで、着座時の衝撃を吸収しつつ、着座後の適度なクッション性を確保することができ、長時間座った場合でも臀部への負担を軽減することができる。併せて、印刷パターンで形成したシート状の面状発熱体を採用することで、着座面を形成する弾性部材表面とシートとの間に凹凸面を有することなく、フラットな状態で収納することができるため、良好な着座感を保って暖房用ヒータを内蔵することができるとともに、面状発熱体からの熱がシートを介して直に伝達され、かつ、弾性部材による断熱効果も相俟って、着座面を効率的に暖めることができる。さらに、面状発熱体に撓み変形吸収手段を設けた構成としているため、着座時に弾性部材が変形した場合でも、その変形に馴染むように面状発熱体が変化するため、パターン印刷された電極及び抵抗体に変形ストレスが印加されることがなく耐久性の向上を図ることができる。また、面状発熱体がPTC特性を有することで、所定温度まで急激に加熱し、その後、所定温度を維持するように自己制御を行うため、回路構成の簡素化と省エネルギー効果を確保することがで
きる。
And, by using an elastic member on the seating surface, it is possible to secure an appropriate cushioning property after sitting while absorbing the impact at the time of sitting, and to reduce the burden on the buttocks even when sitting for a long time it can. In addition, by adopting a sheet-like sheet heating element formed with a printing pattern, it can be stored in a flat state without an uneven surface between the elastic member surface forming the seating surface and the sheet. Therefore, it is possible to incorporate a heater for heating while maintaining a good seating feeling, heat from the sheet heating element is directly transmitted through the sheet, and a heat insulating effect by the elastic member. The seating surface can be efficiently warmed. Furthermore, since the sheet heating element is provided with a bending deformation absorbing means, even when the elastic member is deformed when seated, the sheet heating element changes so as to be adapted to the deformation. It is possible to improve the durability without applying deformation stress to the resistor. In addition, since the planar heating element has PTC characteristics, it is heated rapidly to a predetermined temperature, and then self-control is performed so as to maintain the predetermined temperature, thereby simplifying the circuit configuration and ensuring an energy saving effect. it can.

第2の発明は、特に、第1の発明において、面状発熱体を薄肉の電気絶縁基板上に電極と高分子抵抗体を所定のパターンに印刷して発熱部を形成し、該発熱部を挟むようにポリエステル不織布よりなる被覆材を貼り合わせてシート状に構成したことを特徴とするものである。   According to a second aspect of the invention, in particular, in the first aspect of the invention, a sheet heating element is printed on a thin electrical insulating substrate with electrodes and a polymer resistor in a predetermined pattern to form a heating part. A covering material made of a polyester nonwoven fabric is laminated so as to be sandwiched, and is formed into a sheet shape.

そして、ポリエステル不織布で電極と抵抗体が印刷された電気絶縁基板の両面を覆うように貼り合わせてシート状に構成することで、凹凸面のないフラットな面状発熱体とすることができ、弾性を有する着座部の内面に装着した場合でも良好な着座感を保って均一な暖房感を提供することができるとともに、便座特有の形状に対応した装着構成を確保することができる。   And it can be made into a flat sheet heating element with no uneven surface by bonding it so as to cover both surfaces of the electrically insulating substrate on which the electrode and the resistor are printed with a polyester nonwoven fabric, and it is elastic. Even when the seat is mounted on the inner surface of the seat portion, it is possible to provide a uniform heating feeling while maintaining a good seating feeling, and it is possible to ensure a mounting configuration corresponding to the shape unique to the toilet seat.

第3発明は、特に、第1または第2の発明において、電極を対向した一対の主電極と、該主電極より導出し対向する電極に向かって交互に配列した複数の枝電極で構成し、枝電極は、着座時の撓み方向に対して略直角方向に延設したことを特徴とするものである。   The third invention, in particular, in the first or second invention, comprises a pair of main electrodes opposed to each other and a plurality of branch electrodes that are derived from the main electrodes and alternately arranged toward the opposed electrodes, The branch electrode is characterized by extending in a direction substantially perpendicular to the bending direction at the time of sitting.

そして、複数の枝電極により給電する構成とすることで、着座面を均一に暖めることができ、かつ、枝電極の方向を着座時の撓み方向に対して略直角方向とすることで、撓み変形に対しての影響度を少なくすることができ、抵抗値変化等パターン印刷の信頼性を向上することができる。   In addition, by adopting a configuration in which power is supplied by a plurality of branch electrodes, the seating surface can be uniformly warmed, and the direction of the branch electrodes is set to be substantially perpendicular to the direction of bending at the time of seating, so that the bending deformation occurs. Therefore, the reliability of pattern printing such as a change in resistance value can be improved.

第4の発明は、特に、第3の発明において、着座における人体との接触度合いが少ない部位ほど枝電極の間隔を広げるようにしたことを特徴とするものである。   The fourth invention is characterized in that, in particular, in the third invention, the interval between the branch electrodes is increased in a portion where the degree of contact with the human body in sitting is smaller.

そして、着座時に臀部があまり接触しない部分は枝電極の間隔を広げて温度を低くすることにより省エネを図るようにしたものである。   And the part which a buttocks does not contact so much at the time of seating is intended to save energy by increasing the interval between the branch electrodes and lowering the temperature.

第5の発明は、特に、第1または第2の発明において、撓み変形吸収手段の具体的構成として、面状発熱体の適所にスリット状の切り込みを入れ、一方端を開放して自由端とする構成としたことを特徴とするものである。   According to a fifth aspect of the present invention, in particular, in the first or second aspect, as a specific configuration of the bending deformation absorbing means, a slit-like cut is made at an appropriate position of the planar heating element, and one end is opened to form a free end. It is characterized by having the structure which does.

そして、面状発熱体に一方を開放したスリット状の切り込みを入れることで、該切り込み部で外力に対して柔軟性を持たせることができるとともに、柔らかなシート状の面状発熱体と相俟って、変形具合に馴染んだ形状に変化させることができ、着座時に弾性部材が変形した場合でも、その変形に馴染むように面状発熱体が変化するため、パターン印刷された電極及び抵抗体に変形ストレスが印加されることがなく耐久性の向上を図ることができ、かつ、着座感の向上を図ることができる。   Then, by making a slit-like cut with one side open into the sheet heating element, the cut portion can be made flexible with respect to an external force, and is compatible with the soft sheet-like sheet heating element. Therefore, even if the elastic member is deformed at the time of sitting, the planar heating element changes so as to adapt to the deformation, so that the pattern printed electrodes and resistors can be changed. The durability can be improved without deformation stress being applied, and the seating feeling can be improved.

第6の発明は、特に、第1または第2の発明において、撓み変形吸収手段は、着座時の撓み方向と略同一方向にシート状の面状発熱体の端部からスリット状の切り込みを入れ、一方端を開放して自由端とする構成としたことを特徴とするものである。   According to a sixth aspect of the invention, in particular, in the first or second aspect of the invention, the bending deformation absorbing means inserts a slit-like notch from the end of the sheet-like planar heating element in substantially the same direction as the bending direction at the time of sitting. , One end is opened to be a free end.

そして、面状発熱体に撓み方向と略同一方向に端部からスリット状の切り込みを入れることで、着座時に弾性部材が変形した場合でも、その変形に馴染むように面状発熱体が変化するため、パターン印刷された電極及び抵抗体に変形ストレスが印加されることがなく耐久性の向上を図ることができ、かつ、着座感の向上を図ることができる。   And, by inserting slit-like cuts from the end in the same direction as the bending direction in the planar heating element, even if the elastic member is deformed at the time of sitting, the planar heating element changes so as to adapt to the deformation Further, it is possible to improve the durability without applying deformation stress to the electrode and the resistor printed with the pattern, and to improve the sitting feeling.

第7の発明は、特に、第1または第2の発明において、撓み変形吸収手段は、着座時の撓み方向と略同一方向にシート状の面状発熱体の端部から交互にスリット状の切り込みを
入れ、一方端を開放して自由端とする構成としたことを特徴とするものである。
According to a seventh aspect of the invention, in particular, in the first or second aspect of the invention, the bending deformation absorbing means has slit-like cuts alternately from the end of the sheet-like planar heating element in substantially the same direction as the bending direction when seated. And one end is opened to form a free end.

そして、面状発熱体に端部から交互にスリット状の切り込みを入れることで、着座時に弾性部材が変形した場合でも、その変形に馴染むように面状発熱体が変化するため、パターン印刷された電極及び抵抗体に変形ストレスが印加されることがなく、耐久性の向上を図ることができ、かつ、着座感の向上を図ることができる。   And even if the elastic member is deformed at the time of sitting, the planar heating element changes so as to adapt to the deformation by making slit-like cuts alternately from the end to the planar heating element. Deformation stress is not applied to the electrode and the resistor, durability can be improved, and seating feeling can be improved.

第8の発明は、特に、第1または第2の発明において、高分子抵抗体は、カーボン等の導電性物質に結晶性樹脂を混入してPTC特性を持たせ、着座時に人体との接触度合いが多い部位ほどカーボンを少なく配合したインクにより印刷を施すようにしたことを特徴とするものである。   According to an eighth aspect of the invention, in particular, in the first or second aspect of the invention, the polymer resistor has a PTC characteristic by mixing a crystalline resin into a conductive material such as carbon and has a degree of contact with the human body when seated. It is characterized in that printing is performed with an ink containing a smaller amount of carbon in a portion having a larger amount of carbon.

そして、着座時に臀部との接触度合いが多い部分にカーボン量を少なくして抵抗値を小さくしたインクを印刷することで、温度の立ち上がりを速く、かつ温度を高くして、暖房感を高めるようにしたものである。   And by printing ink with a small amount of carbon and a small resistance value on the part where the degree of contact with the buttocks is high when seated, the temperature rises quickly and the temperature rises to increase the feeling of heating. It is a thing.

第9の発明は、特に、第1または第2の発明において、着座時に人体との接触度合いが多い部位ほど面状発熱体を多層に重ねる構成としたことを特徴とするものである。
そして、着座時に臀部との接触度合いが多い部分に面状発熱体を多層に重ね、温度の立ち上がりを速く、かつ温度を高くして、暖房感を高めるようにしたものである。
The ninth invention is characterized in that, in the first or second invention, in particular, the planar heating element is laminated in multiple layers at a portion having a higher degree of contact with the human body when seated.
And the sheet-like heating element is stacked in a multilayer manner on the portion where the degree of contact with the buttocks is high when sitting, so that the temperature rises quickly and the temperature is raised to enhance the feeling of heating.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(実施の形態1)
図1は本発明の実施の形態1における暖房便座装置の斜視図、図2は同暖房便座装置の便座部の断面図、図3は面状発熱体であるPTCヒータの内部構成図、図4は同暖房便座装置の便座の温度特性を示すグラフ、図5は伸縮性PTC抵抗体の模式図を示すものである。
図に示すように、本発明の第1の実施の形態における暖房便座装置は、着座面を暖房する暖房便座であって、便座6と、便蓋7と、本体8を主構成部材として構成している。
(Embodiment 1)
1 is a perspective view of a heating toilet seat device according to Embodiment 1 of the present invention, FIG. 2 is a sectional view of a toilet seat portion of the heating toilet seat device, FIG. 3 is an internal configuration diagram of a PTC heater that is a planar heating element, and FIG. Is a graph showing the temperature characteristics of the toilet seat of the heating toilet seat device, and FIG. 5 is a schematic diagram of a stretchable PTC resistor.
As shown in the figure, the heating toilet seat device according to the first embodiment of the present invention is a heating toilet seat that heats a seating surface, and includes a toilet seat 6, a toilet lid 7, and a main body 8 as main components. ing.

本体8の内部には、洗浄温水を作り貯湯する熱交換タンク(図示せず)、局部を洗浄する洗浄ノズル(図示せず)、洗浄水の噴出を制御する電磁弁(図示せず)、洗浄後の局部を乾燥する乾燥乾燥ユニット(図示せず)、排便の臭気を脱臭する脱臭ユニット(図示せず)、便座装置の各機能を制御する制御装置9等が内蔵されており、使用者は洗浄ノズルから吐水される温水を局部に当てることにより、用便による汚れを洗い流すことができるものである。   Inside the main body 8, a heat exchange tank (not shown) for creating and storing hot water for washing, a washing nozzle (not shown) for washing the local part, a solenoid valve (not shown) for controlling the ejection of washing water, and washing A drying / drying unit (not shown) for drying the local portion of the back, a deodorizing unit (not shown) for deodorizing the odor of the defecation, a control device 9 for controlling each function of the toilet seat device, and the like are incorporated. By applying the hot water discharged from the washing nozzle to the local area, the dirt due to the toilet can be washed away.

この便座装置は、便器10の上面に戴置した本体8をゴムブッシュ及びボルトを介して便器10に着脱自在に固定し、便座6と便蓋7は本体8に回動自在に枢支している。   In this toilet seat device, a main body 8 placed on the upper surface of the toilet bowl 10 is detachably fixed to the toilet bowl 10 via rubber bushes and bolts, and the toilet seat 6 and the toilet lid 7 are pivotally supported by the main body 8. Yes.

図2に示すように、便座6は上面から、使用者の皮膚と接触する面であり変形自在な軟質で使用者の臀部に馴染むシート状の表皮材11、屈曲変形自在な面状のPTCヒータよりなる面状発熱体12、弾性を備えた軟質樹脂材からなる弾性体層13、硬質樹脂成型品からなる補強部材14、硬質樹脂成型品からなる便座下部部材15の主要部材で構成され、表皮材11と弾性体層13の間に面状発熱体12を装着し着座部を構成している。   As shown in FIG. 2, the toilet seat 6 is a surface in contact with the user's skin from the upper surface, and is a soft sheet that can be deformed and fits the user's buttocks, and a sheet-shaped PTC heater that can be bent and deformed. A sheet heating element 12, an elastic body layer 13 made of a soft resin material having elasticity, a reinforcing member 14 made of a hard resin molded product, and a toilet seat lower member 15 made of a hard resin molded product, A sheet heating element 12 is mounted between the material 11 and the elastic body layer 13 to constitute a seating portion.

補強部材14と便座下部部材15はビス16で螺合してあり、補強部材14は真ん中をビス止めのために平面形状17とし、両側はそれぞれ凸部18として強度を上げている。
そして端部19には便座下部部材15の端部と嵌合するように長手方向に一定間隔で爪を設けてある。補強部材14は便座下部部材15だけでは剛性不足で体重を支えきれないことを想定して設けたものである。従来の便座は上下の樹脂部材を上下ともU字型にして上下のU字部分と逆U字部分の開放面を合わせ面として一体に構成して構造体とすることにより体重を支えるようにしている。
The reinforcing member 14 and the toilet seat lower member 15 are screwed together with a screw 16, and the reinforcing member 14 has a flat shape 17 in the middle for screwing, and both sides have convex portions 18 to increase the strength.
The end 19 is provided with claws at regular intervals in the longitudinal direction so as to be fitted to the end of the toilet seat lower member 15. The reinforcing member 14 is provided on the assumption that the toilet seat lower member 15 alone cannot support the weight due to insufficient rigidity. In the conventional toilet seat, the upper and lower resin members are U-shaped on both the upper and lower sides, and the upper and lower U-shaped parts and the open surface of the inverted U-shaped part are integrally formed as a mating surface to support the weight. Yes.

しかしながら本実施の形態では上部の部材は軟質樹脂である弾性体層13であるため硬質樹脂部材を組み合わせて支えることができないことに対応したもので、便座下部部材15と補強部材14で体重を支えるように構成したものである。   However, in the present embodiment, since the upper member is the elastic body layer 13 made of soft resin, it corresponds to the fact that the hard resin member cannot be supported in combination, and the toilet seat lower member 15 and the reinforcing member 14 support the weight. It is comprised as follows.

また、補強部材14を金属とすることにより一つの便座下部部材15だけでは体重を支えきれないところを、金属の平板、あるいはプレス加工によって構造強化した補強部材14を追加することにより、便座下部部材15の撓みを防止して着座時の便座6の変形を防止することが可能である。   Further, when the reinforcing member 14 is made of metal, the weight of the toilet seat lower member 15 cannot be supported by only one toilet seat lower member 15, and a reinforcing member 14 having a structure reinforced by pressing is added to the toilet seat lower member. Therefore, it is possible to prevent the toilet seat 6 from being deformed when seated.

また、一般的な使用形態において、トイレ(図示せず)のドアを開けたところの対面には、人体の温度を検出したり、反射光を検出したりして人がトイレに入ってきたことを検知する人体検知手段20が設置してあり、人体検知手段20からの信号を受信する受信手段21は本体8の袖部に配置し制御装置9と電気的に繋がっている。人体検知手段20が人体を検知していない状態において便座6に配設された暖房用ヒータは通常通電しないか、極端に室温が低い場合に10W前後の通電を行うことによって、便座表面温度を15℃から20℃程度に保ってある。
本実施の形態では、表皮材11としてPPフィルムを使用している。表皮材11としては0.1mm以下の薄いフィルムで構成され、耐薬品性のある、かつ熱容量の少ないものであれば他の材質によるフィルムでもかまわない。
Also, in a general usage pattern, a person has entered the toilet by detecting the temperature of the human body or detecting reflected light at the face where the door of the toilet (not shown) is opened. A human body detecting means 20 is installed, and a receiving means 21 for receiving a signal from the human body detecting means 20 is disposed on the sleeve portion of the main body 8 and is electrically connected to the control device 9. When the human body detecting means 20 is not detecting a human body, the heater for heating disposed in the toilet seat 6 is not normally energized, or is energized at around 10 W when the room temperature is extremely low, thereby reducing the toilet seat surface temperature to 15 It is kept at about 20 to 20 ° C.
In the present embodiment, a PP film is used as the skin material 11. The skin material 11 may be a film made of another material as long as it is made of a thin film of 0.1 mm or less, has chemical resistance and has a small heat capacity.

面状のPTCヒータよりなる面状発熱体12は、図3に示すように柔軟性フィルム等の薄肉の電気絶縁性基材22に銀ペーストの印刷・乾燥により形成した一対の電極24と、電極24に重なるように高分子抵抗体インクを印刷・乾燥により形成した伸縮性PTC抵抗体23を形成している。そして、電気絶縁性基材22に印刷された電極24、伸縮性PTC抵抗体23を覆うように接着性を有するアクリル系接着剤等の接着性樹脂層を形成したポリエステルフィルム等の薄肉の電気絶縁性オーバコート材25を接着し、その両面をポリエステル不織布(図示せず)でサンドイッチ状に貼り合わせて柔軟性を有したシート状に構成している。この柔軟性を有したシート状に構成することで、着座面を形成する表皮材11と弾性体層13との間に凹凸面を有することなく、フラットな状態で収納することができ、良好な着座感を保って暖房用ヒータを内蔵することができるとともに、面状発熱体12からの熱が表皮材11を介して直に伝達され、かつ、弾性体層13による断熱効果も相俟って、着座面を効率的に暖めることができる。
また、伸縮性PTC抵抗体23は、図5に示すように樹脂とカーボンを混合した粒子26をエラストマー27の中に配合することで、伸縮させた場合においても組成が破壊しない特性を備えている。
As shown in FIG. 3, a sheet heating element 12 composed of a sheet PTC heater includes a pair of electrodes 24 formed by printing and drying a silver paste on a thin-walled electrically insulating base material 22 such as a flexible film, The stretchable PTC resistor 23 is formed by printing and drying the polymer resistor ink so as to overlap with 24. Then, thin electrical insulation such as a polyester film in which an adhesive resin layer such as an acrylic adhesive having adhesion is formed so as to cover the electrode 24 and the stretchable PTC resistor 23 printed on the electrical insulating base 22 The adhesive overcoat material 25 is adhered, and both surfaces thereof are bonded together in a sandwich shape with a polyester nonwoven fabric (not shown) to form a flexible sheet. By constituting in the form of a sheet having this flexibility, it can be stored in a flat state without having an uneven surface between the skin material 11 and the elastic body layer 13 forming the seating surface, and is good. A heater for heating can be built in while maintaining a seating feeling, heat from the sheet heating element 12 is directly transmitted through the skin material 11, and a heat insulating effect by the elastic body layer 13 is combined. The seating surface can be efficiently warmed.
In addition, the stretchable PTC resistor 23 has a characteristic that the composition does not break even when stretched by blending particles 26 in which resin and carbon are mixed in an elastomer 27 as shown in FIG. .

上記構成の面状発熱体であるPTCヒータ12は200Wから500W程度のヒータ容量をもち、AC30V以下またはDC45V以下の電圧で加熱するようにしている。PTCヒータ12は温度が低いときは、伝導性粒子(ここではカーボン)の連鎖が重なっていて電流が通りやすく、温度が高くなると伝導性粒子の連鎖を断ち切り電流を流しにくくするというPTC特性(正温度係数特性)を有している。すなわち、通電直後の立ち上がり時など温度が低いときはハイパワーで発熱し、温度が高くなると自動的にローパワーになるというヒータ特性(自己温度制御特性)を有している。従って、熱容量の少ない薄い表皮材11を介して使い始めにすぐに温度が上がるという速熱性を有しているとともに、所
定温度に上昇した後は、その温度を保持するように電流を制限する省エネ性を有している。なお、面状のPTCヒータ12は通電を制御する制御装置9と電気的に接続してある。
The PTC heater 12 which is a planar heating element having the above configuration has a heater capacity of about 200 W to 500 W, and is heated at a voltage of AC 30 V or less or DC 45 V or less. When the temperature of the PTC heater 12 is low, a chain of conductive particles (in this case, carbon) overlaps and the current easily passes. Temperature coefficient characteristics). That is, it has a heater characteristic (self-temperature control characteristic) that heat is generated at high power when the temperature is low, such as at the start immediately after energization, and automatically becomes low power when the temperature is high. Therefore, it has a rapid heat property that the temperature immediately rises through the thin skin material 11 having a small heat capacity, and after the temperature rises to a predetermined temperature, the current is limited so as to maintain the temperature. It has sex. The planar PTC heater 12 is electrically connected to a control device 9 that controls energization.

着座時に衝撃を吸収する弾性体層13は発泡ポリウレタンを使用しており、主として内部の気泡が繋がった独立気泡構造をとり、ガスの出入りをなくし、空気によるクッション性を持たせているが、適度なクッション性を有するものであれば連続気泡構造のものでもよい。また弾性体層13は補強部材14の周りを覆うように形成してあり、着座したときも臀部が直接、補強部材14に接しないようにしてある。   The elastic layer 13 that absorbs impact when seated uses foamed polyurethane, has a closed cell structure mainly connected with internal bubbles, eliminates gas in and out, and has cushioning by air. As long as it has a good cushioning property, it may have an open cell structure. Further, the elastic layer 13 is formed so as to cover the periphery of the reinforcing member 14 so that the collar portion does not directly contact the reinforcing member 14 when seated.

以上のように構成された便座装置について、以下その動作、作用を説明する。   About the toilet seat apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

まず、人が用を足すためにトイレに入室すると、人体検知手段20が人体を検知し、その信号を本体8に設けてある受信手段21に送信する。受信手段21で受信した信号により制御装置9は面状のPTCヒータ12の通電率を上げて急激な立ち上げを行う。PTCヒータ12は立ち上がり時など温度が低いときはハイパワーで発熱し、温度が高くなると自動的にローパワーになるというPTC特性(自己温度制御特性)を有している。従って熱容量の少ない薄い表皮材11を介して使い始めにすぐに温度が上がるという速熱性を有している。   First, when a person enters the toilet for use, the human body detecting means 20 detects the human body and transmits the signal to the receiving means 21 provided in the main body 8. The control device 9 raises the energization rate of the planar PTC heater 12 by the signal received by the receiving means 21 and performs a rapid start-up. The PTC heater 12 has a PTC characteristic (self-temperature control characteristic) that generates heat with high power when the temperature is low, such as at the time of startup, and automatically becomes low power when the temperature is high. Therefore, it has a rapid heat property that the temperature immediately rises at the beginning of use through the thin skin material 11 having a small heat capacity.

図4は便座6の温度特性を示すものであり、横軸に時間、縦軸に便座表面温度を示しており、便座6の表面温度は10秒以内で35℃前後の温度になることがわかる。便座6の通常温度設定は35℃から40℃程度に設定してあるため便座6に座って冷たいということはない。一般的にPTCヒータが35℃程度に暖まるまでに要する時間と人が服を脱いで便座に座る時間は、ほぼ同程度の数秒から10秒くらいであり、座るときには冷たくない温度となっている。   FIG. 4 shows the temperature characteristics of the toilet seat 6. The horizontal axis shows time, and the vertical axis shows the toilet seat surface temperature. It can be seen that the surface temperature of the toilet seat 6 is about 35 ° C. within 10 seconds. . Since the normal temperature setting of the toilet seat 6 is set to about 35 ° C. to 40 ° C., it does not mean that the user sits on the toilet seat 6 and is cold. In general, the time required for the PTC heater to warm to about 35 ° C. and the time for a person to take off clothes and sit on the toilet seat are about the same number of seconds to about 10 seconds, and the temperature is not cold when sitting.

また、使用者が上記の状態の便座に座ると、クッション性のある弾性体層13と屈曲自在なPTCヒータ12は使用者の臀部に沿って変形することにより、衝撃を受けないで着座することができる。   When the user sits on the toilet seat in the above-described state, the cushioning elastic layer 13 and the bendable PTC heater 12 are deformed along the user's buttocks so that they do not receive an impact. Can do.

本実施の形態のPTCヒ−タ12は、図5に示すように樹脂とカーボンを混合した粒子22をエラストマー23の中に配合することで、伸縮させた場合においても組成が破壊しないことを特徴とした伸縮性PTCとしている。このようにフレキシブル性に富んだ伸縮性のある構成をしているため、5−10%程度の伸びに関しては抵抗体の破壊は起こらない。   The PTC heater 12 of the present embodiment is characterized in that the composition does not break even when expanded and contracted by blending the elastomer 22 with the particles 22 in which resin and carbon are mixed as shown in FIG. The elastic PTC. Since it has a flexible and flexible structure as described above, the resistor does not break when the elongation is about 5 to 10%.

図11に従来の便座装置の撓み特性、図6に本実施の形態の便座装置の撓み特性を示す。図11、図6のグラフは横軸に荷重量、縦軸に撓み量を示し、撓み量についてはマイナス方向に示している。図11、6ともに荷重量が増えれば撓み量が増える構成としている。本実施の形態の便座装置は弾性体層13を設置したことで少しの荷重の差で撓み量が大きく変化する特徴を有している。前記特徴は図6に示す撓み量のグラフの傾きが、図11の撓み量の傾きに比べて大きい事から読み取れる。これらの測定デ−タより、便座装置の撓み量はPTCヒータの伸び量の許容範囲内に入っていることがわかる。   FIG. 11 shows the bending characteristics of a conventional toilet seat apparatus, and FIG. 6 shows the bending characteristics of the toilet seat apparatus of the present embodiment. In the graphs of FIGS. 11 and 6, the horizontal axis indicates the load amount, the vertical axis indicates the deflection amount, and the deflection amount is indicated in the minus direction. 11 and 6, the amount of deflection increases as the load increases. The toilet seat device according to the present embodiment is characterized in that the amount of deflection greatly changes due to a slight difference in load due to the installation of the elastic body layer 13. The characteristic can be read from the fact that the inclination of the deflection amount graph shown in FIG. 6 is larger than the inclination of the deflection amount shown in FIG. From these measurement data, it can be seen that the amount of deflection of the toilet seat device falls within the allowable range of the amount of elongation of the PTC heater.

使用者が着座してからは、所定の設定温度まで便座温度が上がり、その後は一定の温度に保つ。このとき、特に便座面と臀部または大腿部が接触しているところは人体により断熱されているため温度が上がりやすいが、PTCヒ−タ12は温度が高くなると伝導性粒子の連鎖を断ち切り電流を流しにくくするという性質を有しているため、無駄に便座温度を上げすぎることがなく、省エネ効果が高いという利点を有している。   After the user is seated, the toilet seat temperature rises to a predetermined set temperature, and thereafter the temperature is kept constant. At this time, particularly where the toilet seat surface and the buttocks or thighs are in contact with each other, the temperature is likely to rise because the human body insulates, but the PTC heater 12 breaks the chain of conductive particles when the temperature rises. Therefore, the toilet seat temperature is not excessively raised and the energy saving effect is high.

以上のように、本実施の形態においては、表皮材の裏面に屈曲自在なPTCヒータを配設し、その下に弾性体層を設置する構成とすることにより、使用者は着座時の衝撃や冷たさを感じることが少なく、長時間着座しても臀部の血流を妨げることもなく、違和感や疲れを感じない快適な便座装置とすることができる。   As described above, in the present embodiment, a flexible PTC heater is disposed on the back surface of the skin material, and an elastic body layer is disposed under the PTC heater, so that the user can take a shock or It is possible to provide a comfortable toilet seat device that does not feel cold, does not disturb the blood flow of the buttocks even when sitting for a long time, and does not feel uncomfortable or tired.

また、PTCヒータのPTC特性(自己温度制御特性)により、速熱性と昇温後の自己温度制御機能により、無駄な電力の使用を抑え、省エネ効果の高い便座装置を提供することができる。   In addition, the PTC characteristic (self-temperature control characteristic) of the PTC heater can suppress the use of wasteful power and provide a toilet seat device with a high energy saving effect due to the rapid thermal property and the self-temperature control function after the temperature rise.

なお、本実施の形態においては、面状便座ヒータとして伸縮性PTC抵抗体を使用したPTCヒータを使用したが、これに限るものではなく、面状の金属製のヒータや伸縮特性を持たないPTCヒータ等で面状の構成が可能なヒータであれば、本実施の形態と近似の効果を得ることができる。   In the present embodiment, a PTC heater using a stretchable PTC resistor is used as the planar toilet seat heater, but the present invention is not limited to this, and a planar metal heater or a PTC having no stretch characteristic is used. An effect similar to that of the present embodiment can be obtained as long as the heater can have a planar configuration.

また、本実施の形態では表皮材とPTCヒータは別部材で構成したが、表皮材をPTCヒータの柔軟性フィルムで兼ねることも可能である。   In the present embodiment, the skin material and the PTC heater are configured as separate members, but the skin material can also be used as a flexible film of the PTC heater.

また、本実施の形態ではPTCヒータを表皮材と弾性体層の間に介在する構成としたが、面状ヒータの設置場所としては、弾性体層の内部に設置することも可能であり、特に、屈曲性の低い面状ヒータの場合は、弾性体層の内部に設置することにより、着座した状態で面状ヒータの存在を感じることが少なく快適性を高めることができる。   In the present embodiment, the PTC heater is interposed between the skin material and the elastic layer. However, the planar heater can be installed inside the elastic layer, in particular. In the case of a planar heater with low flexibility, it is possible to improve the comfort by lessening the presence of the planar heater in a seated state by being installed inside the elastic layer.

次ぎ、上記構成に示すように着座部に収納された面状発熱体の構成について、具体的な実施形態におけるPTCヒータの印刷パターンについて説明する。   Next, the print pattern of the PTC heater in a specific embodiment will be described with respect to the configuration of the planar heating element housed in the seating portion as shown in the above configuration.

軟質素材を用い弾性を有する便座に人が座った場合、便座が大きく撓む事から、電極の構成として図7に示すように、電源28に接続された幅広の電源路29a、29bを着座面の両側に対向するように配置し、この電源路29a、29bから相対向するように幅の広い一対の主電極30a、30bを配設し、さらに、それぞれの主電極30a、30bから交互に相手側の主電極に向かって複数の枝電極31a、31bを導出して櫛状の電極を構成する。そして、この枝電極31a、31bに重なるようにPTC特性を有する高分子抵抗体23を印刷し、多数の枝電極31a、31bより給電することで、高分子抵抗体23に電流が流れ、上記した如く、立ち上がり時など温度が低いときはハイパワーで発熱し、温度が高くなると自動的にローパワーになるという自己温度制御により、所定の温度に制御される。この主電極30a、30bと枝電極31a、31bで構成した電極24を着座面に均一に配置することにより着座時の臀部に対して均一な暖房感を提供することができる。   When a person sits on an elastic toilet seat using a soft material, the toilet seat is greatly bent. Therefore, as shown in FIG. 7, the power supply channels 29a and 29b connected to the power source 28 are used as seating surfaces. A pair of wide main electrodes 30a, 30b are arranged so as to face each other from the power supply paths 29a, 29b, and the main electrodes 30a, 30b are alternately opposed to each other. A plurality of branch electrodes 31a and 31b are led out toward the main electrode on the side to form a comb-like electrode. Then, the polymer resistor 23 having PTC characteristics is printed so as to overlap with the branch electrodes 31a and 31b, and a current flows through the polymer resistor 23 by supplying power from the multiple branch electrodes 31a and 31b. As described above, the temperature is controlled to a predetermined temperature by self-temperature control in which heat is generated at high power when the temperature is low, such as at the start, and automatically becomes low power when the temperature is high. By uniformly disposing the electrode 24 composed of the main electrodes 30a, 30b and the branch electrodes 31a, 31b on the seating surface, it is possible to provide a uniform feeling of heating to the buttocks when seated.

また、枝電極31a、31bを座った時に着座部が撓む方向に対して略直角方向に延設した配設構成とすることにより、抵抗素子が破壊されることなく耐久性に優れる。   Further, by providing an arrangement configuration that extends in a direction substantially perpendicular to the direction in which the seating portion bends when the branch electrodes 31a and 31b are seated, the resistance element is not destroyed and the durability is excellent.

さらに、本実施の形態のように弾性を有する着座部に面状発熱体12を装着した場合、着座時に人体による荷重がかかった時に変形し、荷重がかからなくなると復元するため、面状発熱体12も着座部の変形に対応して相似の変形をすることが望ましい。   Further, when the planar heating element 12 is attached to the elastic seating portion as in the present embodiment, it is deformed when a load is applied by the human body at the time of sitting, and is restored when no load is applied. It is desirable that the body 12 also undergoes similar deformation corresponding to the deformation of the seating portion.

そこで、本実施の形態では面状発熱体12が上記荷重により変形する形状に馴染むように変化させる撓み変形吸収手段を設けることで、薄肉の電気絶縁基板22上に電極24と高分子抵抗体23を所定のパターンに印刷して形成した発熱部にストレスがかからないようにしたものである。   Therefore, in the present embodiment, the electrode 24 and the polymer resistor 23 are provided on the thin electrical insulating substrate 22 by providing a bending deformation absorbing means for changing the planar heating element 12 so as to adapt to the shape deformed by the load. The heat generating part formed by printing the pattern in a predetermined pattern is not subjected to stress.

その具体的手段として図8に示すように、主電極30a、30bと枝電極31a、31bで構成した電極24間のPTCシートに内側から及び外側からスリット状の切り込み32を入れた構成とし、このスリット状の切り込み32により弾性体13が着座時に不均一に撓んだ場合でもその撓み形状に馴染んでPTCシートが変形することで、印刷面へのストレス印加を抑制するようにしている。また、スリット状の切り込み32は、着座時の撓み方向と略同一方向にシート状の面状発熱体であるPTCシート12の端部からスリット状の切り込みを入れ、一方端を開放して自由端とすることにより、弾性体13の変形に対して印刷面へのストレスを印加させることなく、馴染ませることが可能となり、より柔軟性を持たせることができる。なお、スリット状の切り込み32は、着座時の撓み方向と略同一方向にシート状の面状発熱体12の端部から交互にスリット状の切り込みを入れる方が印刷面へのストレス印加をより低減し、より柔軟性を持たせることができる。   As a specific means, as shown in FIG. 8, the PTC sheet between the electrodes 24 constituted by the main electrodes 30a, 30b and the branch electrodes 31a, 31b is provided with a slit-like cut 32 from the inside and the outside. Even when the elastic body 13 bends unevenly when seated due to the slit-shaped cuts 32, the PTC sheet is deformed in conformity with the bent shape, thereby suppressing the stress application to the printing surface. In addition, the slit-shaped cut 32 is formed in a slit-shaped cut from the end portion of the PTC sheet 12 that is a sheet-like planar heating element in the substantially same direction as the bending direction at the time of sitting, and one end is opened to open a free end. By doing so, it becomes possible to adapt to the deformation of the elastic body 13 without applying stress to the printing surface, and it is possible to provide more flexibility. In addition, the slit-shaped cut 32 reduces the stress application to the printing surface more by cutting the slit-shaped cut alternately from the end of the sheet-like sheet heating element 12 in the same direction as the bending direction at the time of sitting. And more flexible.

以上の構成により、便座に人の体重が加えられた時の撓みによる、PTCヒータへの影響も少なく、また便座の柔軟性も損なわれることがなく、使用者が便座に座った時のヒータによる違和感を解消することができる。   With the above configuration, there is little influence on the PTC heater due to bending when a person's weight is added to the toilet seat, and the flexibility of the toilet seat is not impaired, and the heater when the user sits on the toilet seat Discomfort can be eliminated.

主電極については、便座の外側と内側にそれぞれ設け、例えば、内側をプラス電極、外側をマイナス電極とすることにより、設計しやすくなる。   The main electrode is provided on the outer side and the inner side of the toilet seat, respectively. For example, the inner electrode is a plus electrode and the outer side is a minus electrode, thereby facilitating the design.

(実施の形態2)
図11は本発明の第2の実施の形態における暖房便差装置の電極構成を示す図である。
(Embodiment 2)
FIG. 11 is a diagram showing an electrode configuration of the heating / stool difference device according to the second embodiment of the present invention.

第2の実施の形態は、着座における人体との接触度合いが少ない部位ほど枝電極の間隔Aを広げるようにしたものであり、便座に人が座っている時、接触頻度が少ない場所には、軟質樹脂の便座のため温度は低めに設定していても表面が暖まっていると冷たいと感じないため温度は下げることが可能となる。そこで、便座の温度の下げる方法として、図9のように、着座時に臀部との接触頻度が少ない後方の外周部において枝電極31a、31bの間隔Aを広く設定することで、この部分の温度を下げることができ、省エネ効果を高めることができる。   In the second embodiment, the portion where the degree of contact with the human body in the seating is small is such that the interval A between the branch electrodes is widened, and when a person is sitting on the toilet seat, Even if the temperature is set low due to the toilet seat made of soft resin, if the surface is warm, it does not feel cold, so the temperature can be lowered. Therefore, as a method of lowering the temperature of the toilet seat, as shown in FIG. 9, by setting the interval A between the branch electrodes 31 a and 31 b wide at the rear outer peripheral portion where the contact frequency with the heel portion is low when seated, the temperature of this portion is set. The energy saving effect can be enhanced.

また、PTCヒータの特徴として、PTC特性を有する高分子抵抗体インクの配合を変化させることにより、最高温度、また温度の立ち上がりを変えることができる。高分子抵抗体は樹脂とカーボンから配合され、カーボンを減らすことにより温度は低くなるため、接触頻度の低い場所における高分子抵抗体インクのカーボンの配合を減らすことにより温度は低くなり、省エネ効果を図ることが可能となる。   In addition, as a feature of the PTC heater, the maximum temperature and the rise of temperature can be changed by changing the composition of the polymer resistor ink having PTC characteristics. Polymer resistors are blended from resin and carbon, and the temperature decreases by reducing the carbon. Therefore, reducing the carbon content of the polymer resistor ink in places where contact frequency is low reduces the temperature, resulting in an energy saving effect. It becomes possible to plan.

また、PTCヒータの特徴として、PTCは重ねれば重ねるほど温度は上がることにより、特に接触頻度が多い所には、PTCヒータを重ねて立ち上がりをよくすることが可能となる。   In addition, as a feature of the PTC heater, the temperature increases as the PTCs are stacked, so that it is possible to improve the rise by stacking the PTC heaters particularly in a place where the contact frequency is high.

以上のように、本発明に係る便座装置は、着座時の快適性と暖房機能の省エネ性の効果を備えたものであるので、椅子や座布団等の着座機器の暖房機能などの用途にも適用できる。   As described above, the toilet seat device according to the present invention has the effect of comfort in sitting and the energy saving effect of the heating function, so it can be applied to applications such as the heating function of seating devices such as chairs and cushions. it can.

本発明の実施の形態1における便座装置の斜視図The perspective view of the toilet seat apparatus in Embodiment 1 of this invention 本発明の実施の形態1における便座の断面図Sectional drawing of the toilet seat in Embodiment 1 of this invention 本発明の実施の形態1におけるPTCヒータの内部構成図1 is an internal configuration diagram of a PTC heater in Embodiment 1 of the present invention. 本発明の実施の形態1における便座の温度特性図Temperature characteristic diagram of toilet seat according to Embodiment 1 of the present invention 本発明の実施の形態1における伸縮性PTC抵抗体の模式図Schematic diagram of the stretchable PTC resistor in Embodiment 1 of the present invention 本発明の実施の形態1における便座装置の撓み特性図Flexural characteristic diagram of toilet seat device according to Embodiment 1 of the present invention 本発明の実施の形態1におけるPTCヒータの印刷パターンを示す図The figure which shows the printing pattern of the PTC heater in Embodiment 1 of this invention 本発明の実施の形態1におけるPTCヒータの印刷パターンを示す図The figure which shows the printing pattern of the PTC heater in Embodiment 1 of this invention 本発明の実施の形態1におけるPTCヒータの印刷パターンを示す図The figure which shows the printing pattern of the PTC heater in Embodiment 1 of this invention 従来の便座装置の断面図Sectional view of a conventional toilet seat device 従来の便座装置の撓み特性図Bending characteristic diagram of conventional toilet seat device

符号の説明Explanation of symbols

6 便座
10 便器
11 シート
12 PTCヒータ(面状発熱体)
13 弾性部材
22 柔軟性フィルム
23 伸縮性PTC抵抗体(高分子抵抗体)
24 電極
30 主電極
31 枝電極
32 スリット状切り込み部(撓み変形吸収手段)
6 toilet seat 10 toilet 11 seat 12 PTC heater (planar heating element)
13 Elastic member 22 Flexible film 23 Stretchable PTC resistor (polymer resistor)
24 electrode 30 main electrode 31 branch electrode 32 slit-shaped cut portion (bending deformation absorbing means)

Claims (9)

便器の上面に着脱自在に装着された便座の上面に、弾性部材と該弾性部材を覆うシートで構成した着座部を形成し、前記着座部の内部に電極及び高分子抵抗体を印刷パターンで形成した面状発熱体を収納し、前記面状発熱体は、着座部の撓み変形に対して馴染むように変化する撓み変形吸収手段を有する構成とした暖房便座装置。 A seating portion composed of an elastic member and a sheet covering the elastic member is formed on the upper surface of the toilet seat detachably mounted on the upper surface of the toilet bowl, and an electrode and a polymer resistor are formed in a printed pattern inside the seating portion. A heating toilet seat device configured to store a deformed sheet heating element, and the sheet heating element includes bending deformation absorbing means that changes so as to adjust to the bending deformation of the seating portion. 面状発熱体は、薄肉の電気絶縁基板上に電極と高分子抵抗体を所定のパターンに印刷して発熱部を形成し、該発熱部を挟むようにポリエステル不織布よりなる被覆材を貼り合わせてシート状に構成した請求項1記載の暖房便座装置。 A sheet heating element is formed by printing electrodes and a polymer resistor in a predetermined pattern on a thin electrical insulating substrate to form a heating part, and a covering material made of a polyester nonwoven fabric is laminated so as to sandwich the heating part. The heating toilet seat device according to claim 1 configured in a sheet shape. 電極は、対向した一対の主電極と、該主電極より導出し対向する電極に向かって交互に配列した複数の枝電極よりなり、前記枝電極は、着座時の撓み方向に対して略直角方向に延設した請求項1または2記載の暖房便座装置。 The electrodes are composed of a pair of opposed main electrodes and a plurality of branch electrodes that are led out from the main electrodes and arranged alternately toward the opposed electrodes, and the branch electrodes are substantially perpendicular to the bending direction when seated. The heating toilet seat device according to claim 1 or 2, wherein the heating toilet seat device is extended. 着座における人体との接触度合いが少ない部位ほど枝電極の間隔を広げるようにした請求項3記載の暖房便座装置。 The heating toilet seat device according to claim 3, wherein the interval between the branch electrodes is increased in a portion where the degree of contact with the human body in sitting is small. 撓み変形吸収手段は、面状発熱体の適所にスリット状の切り込みを入れ、一方端を開放して自由端とする構成とした請求項1または2記載の暖房便座装置。 The heating toilet seat device according to claim 1 or 2, wherein the bending deformation absorbing means has a configuration in which a slit-like cut is made at an appropriate position of the planar heating element and one end is opened to be a free end. 撓み変形吸収手段は、着座時の撓み方向と略同一方向にシート状の面状発熱体の端部からスリット状の切り込みを入れ、一方端を開放して自由端とする構成とした請求項1または2記載の暖房便座装置。 The bending deformation absorbing means has a configuration in which a slit-like cut is made from an end portion of the sheet-like planar heating element in the same direction as the bending direction at the time of sitting, and one end is opened to be a free end. Or the heating toilet seat apparatus of 2. 撓み変形吸収手段は、着座時の撓み方向と略同一方向にシート状の面状発熱体の端部から交互にスリット状の切り込みを入れ、一方端を開放して自由端とする構成とした請求項1または2記載の暖房便座装置。 The bending deformation absorbing means has a configuration in which slits are cut alternately from the end of the sheet-like planar heating element in the same direction as the bending direction at the time of sitting, and one end is opened to be a free end. Item 3. A heated toilet seat device according to item 1 or 2. 高分子抵抗体は、カーボン等の導電性物質に結晶性樹脂を混入してPTC特性を持たせ、着座時に人体との接触度合いが少ない部位ほどカーボンを少なく配合したインクにより印刷を施すようにした請求項1または2記載の暖房便座装置。 In the polymer resistor, a crystalline resin is mixed into a conductive substance such as carbon to give PTC characteristics, and the portion having a lower degree of contact with the human body when seated is printed with ink containing less carbon. The heating toilet seat device according to claim 1 or 2. 着座時に人体との接触度合いが多い部位ほど面状発熱体を多層に重ねる構成とした請求項1または2記載の暖房便座装置。 The heating toilet seat device according to claim 1 or 2, wherein the sheet heating element is configured to be stacked in multiple layers at a portion having a higher degree of contact with a human body when seated.
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JP2006007077A JP5140928B2 (en) 2006-01-16 2006-01-16 Heating toilet seat device
CN2006800371749A CN101282673B (en) 2005-10-06 2006-10-06 toilet seat device
KR1020137034449A KR101442144B1 (en) 2005-10-06 2006-10-06 Toilet seat device
PCT/JP2006/320123 WO2007040279A1 (en) 2005-10-06 2006-10-06 Toilet seat device
KR1020087008034A KR101441579B1 (en) 2005-10-06 2006-10-06 Toilet seat device

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JP2009112439A (en) * 2007-11-05 2009-05-28 Shimao Hori Heating toilet seat and toilet bowl
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JP2010063669A (en) * 2008-09-11 2010-03-25 Inax Corp Electromagnetic induction heater

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