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JP5954658B2 - Toilet seat manufacturing method - Google Patents
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JP5954658B2 - Toilet seat manufacturing method - Google Patents

Toilet seat manufacturing method Download PDF

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Publication number
JP5954658B2
JP5954658B2 JP2012157507A JP2012157507A JP5954658B2 JP 5954658 B2 JP5954658 B2 JP 5954658B2 JP 2012157507 A JP2012157507 A JP 2012157507A JP 2012157507 A JP2012157507 A JP 2012157507A JP 5954658 B2 JP5954658 B2 JP 5954658B2
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Prior art keywords
seat
bottom end
support
peripheral end
outer peripheral
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JP2014018283A (en
Inventor
小森　智景
智景 小森
規雄 東
規雄 東
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Panasonic Intellectual Property Management Co Ltd
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Panasonic Intellectual Property Management Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/543—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81425—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being stepped, e.g. comprising a shoulder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/769—Sanitary equipment
    • B29L2031/7694—Closets, toilets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/771—Seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/779—Heating equipment

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Toilet Supplies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

本発明は、便座の製造方法に関するものである。 The present invention relates to the production how the toilet seat.

従来から、振動溶着による便座の製造方法が知られている（例えば特許文献１参照）。特許文献１に記載されている便座の製造方法は、座部を底部に振動溶着により接合し、便座を形成している。   Conventionally, a method for manufacturing a toilet seat by vibration welding is known (see, for example, Patent Document 1). In the method for manufacturing a toilet seat described in Patent Document 1, the seat portion is joined to the bottom portion by vibration welding to form a toilet seat.

特開平１０−１６５３３１号公報Japanese Patent Laid-Open No. 10-165331

ところで、便器では、便座にかかる荷重を、便座を厚肉にすることにより支えていた。しかし、厚肉の便座では、便座が臀部に沿って撓まないため、座り心地が悪くなり、またヒータで便座を温める際、便座が温まり難くなっていた。そこで、便座を薄肉にし、便座を撓み易くすることにより、便座の形状を臀部に沿わせるようにし、またヒータの熱が便座に熱伝導し易くなるようにした。しかし、便座が薄肉であると、便座にかかる荷重を支持できない虞があるため、便座の内部に便座を支持する支持部６３が配設されることになった。   By the way, in the toilet bowl, the load applied to the toilet seat is supported by making the toilet seat thick. However, in the thick toilet seat, the toilet seat does not bend along the buttocks, so the seating comfort is poor, and when the toilet seat is warmed by the heater, the toilet seat is difficult to warm up. Therefore, by making the toilet seat thin and making it easy to bend, the shape of the toilet seat is made to conform to the buttocks, and the heat of the heater is easily conducted to the toilet seat. However, if the toilet seat is thin, there is a possibility that the load applied to the toilet seat cannot be supported. Therefore, the support portion 63 that supports the toilet seat is disposed inside the toilet seat.

支持部６３が配設される便座の製造方法について示す。まず、図４（ａ）に示すように、座部６１を座面支持具６６に設置する。前記座部６１の裏面にヒータ６４を接着し、ヒータ６４の裏面に緩衝材６５を接着し、そして支持部６３を緩衝材６５の裏に座部６１を密着させて配設する。次に、図４（ｂ）に示すように、底部６２の端部と座部６１と支持部６３の端部を合せるように、底部６２を嵌め込んだ振動冶具６７を座面支持具６６に載置する。そして、加圧し振動溶着を行うことにより、底部６２の端部と座部６１と支持部６３の端部が固定され、図４（ｃ）に示すような便座を設けることができていた。   A method for manufacturing a toilet seat on which the support portion 63 is disposed will be described. First, as shown in FIG. 4A, the seat portion 61 is installed on the seat surface support 66. The heater 64 is bonded to the back surface of the seat portion 61, the buffer material 65 is bonded to the back surface of the heater 64, and the support portion 63 is disposed in close contact with the back surface of the buffer material 65. Next, as shown in FIG. 4B, the vibration jig 67 in which the bottom 62 is fitted so that the end of the bottom 62 and the end of the seat 61 and the support 63 are aligned is attached to the seat support 66. Place. By pressurizing and performing vibration welding, the end of the bottom 62, the seat 61, and the end of the support 63 are fixed, and a toilet seat as shown in FIG. 4C can be provided.

このとき、便座の内部に、荷重を支持する支持部６３、ヒータ６４、緩衝材６５といった成形品を配設する際、支持部６３はヒータ６４と緩衝材６５を介して座部６１と密着して配設される必要があった。支持部６３と座部６１が密着して配設された後、振動溶着で座部６１と支持部６３と底部６２とを固定することにより、望ましい便座を得ることができる。しかしながら、支持部６３と座部６１を密着させるには、座部６１に対して支持部６３の形状が一致していなくてはならず、支持部６３と座部６１の高い寸法精度が要求されていた。その高い寸法精度を達成し難いため、支持部６３と座部６１とが全周に亘って形状を一致させることは困難であった。   At this time, when the molded product such as the support portion 63 that supports the load, the heater 64, and the cushioning material 65 is disposed inside the toilet seat, the support portion 63 is in close contact with the seat portion 61 via the heater 64 and the cushioning material 65. It was necessary to be arranged. After the support part 63 and the seat part 61 are disposed in close contact with each other, a desired toilet seat can be obtained by fixing the seat part 61, the support part 63, and the bottom part 62 by vibration welding. However, in order to bring the support portion 63 and the seat portion 61 into close contact with each other, the shape of the support portion 63 must match the seat portion 61, and high dimensional accuracy of the support portion 63 and the seat portion 61 is required. It was. Since it is difficult to achieve the high dimensional accuracy, it is difficult for the support portion 63 and the seat portion 61 to have the same shape over the entire circumference.

本発明は上記従来の問題点に鑑みて発明したものであって、その目的とするところは、支持部と座部の形状の誤差を自動で吸収する便座の製造方法を提供することを課題とするものである。   The present invention was invented in view of the above-mentioned conventional problems, and the object of the present invention is to provide a toilet seat manufacturing method that automatically absorbs errors in the shapes of the support section and the seat section. To do.

上記課題を解決するために、本発明は、以下のような構成とする。   In order to solve the above problems, the present invention has the following configuration.

便座の製造方法は、平面視環状をしてその周方向に垂直な断面において上方に凸となり、上面が座面となる座部と、平面視環状をして、前記座部の平面視における内周端に位置する底端面と外周端に位置する底端面とに振動溶着により固定される底部と、前記座部の前記内周端と前記外周端との間の裏面に設けられるヒータと、前記座部の前記内周端と前記外周端との間の前記裏面に前記ヒータを介して設けられる緩衝材と、平面視環状をしてその周方向に垂直な断面において上方に凸となり、上面が前記座部の前記裏面に設けられる前記緩衝材に沿う支持面となり、平面視における内周端に位置する底端面と外周端に位置する底端面とが振動溶着により前記底部に固定される支持部と、を備えた便座の製造方法であって、前記座部は、前記ヒータと前記緩衝材が設けられた状態で、振動溶着の加圧に対する耐変形性を付与する座面支持具により前記座面が支持され、前記支持部は、その前記内周端に位置する前記底端面が、内周側に行く程前記支持面と反対側に位置するように傾斜し、且つ、前記支持部の前記外周端に位置する前記底端面が、外周側へ行く程前記支持面と反対側に位置するように傾斜し、前記支持部は、その前記内周端に位置する底端部の周方向の一部に周方向に分断する切欠を備え、前記支持部の前記外周端に位置する底端部の周方向の一部に周方向に分断する切欠を備え、前記支持部は、その前記支持面が前記座部に設けられた前記緩衝材に沿うように前記座部内に配置され、前記支持部の前記内周端に位置する前記底端部が前記座部の前記内周端に位置する底端部と隣接し、且つ、前記支持部の前記外周端に位置する前記底端部が前記座部の前記外周端に位置する底端部と隣接するように配置され、前記支持部の前記内周端に位置する傾斜した前記底端面および前記支持部の前記外周端に位置する傾斜した前記底端面に前記底部が加圧されて、前記支持部の前記内周端に位置する前記底端部が前記座部の前記内周端に位置する前記底端部に圧接し、且つ、前記支持部の前記外周端に位置する前記底端部が前記座部の前記外周端に位置する前記底端部に圧接した状態で、前記座部の前記底端面および前記支持部の前記底端面が前記底部に振動溶着により固定されることを特徴とする。 The toilet seat is manufactured in a plan view ring-shaped and convex upward in a cross section perpendicular to the circumferential direction thereof, and the upper surface is a seat surface. A bottom portion fixed by vibration welding to a bottom end surface located at a peripheral end and a bottom end surface located at an outer peripheral end; a heater provided on a back surface between the inner peripheral end and the outer peripheral end of the seat; A cushioning material provided via the heater on the back surface between the inner peripheral end and the outer peripheral end of the seat portion, and a circular shape in plan view, and the upper surface is convex upward in a cross section perpendicular to the circumferential direction. A support surface along the cushioning material provided on the back surface of the seat portion, and a bottom end surface located at the inner peripheral end and a bottom end surface located at the outer peripheral end in plan view are fixed to the bottom portion by vibration welding A toilet seat manufacturing method comprising: The seating surface is supported by a seating surface support device that imparts deformation resistance against vibration welding pressurization in a state where the data buffer and the buffer material are provided, and the support portion is located at the inner peripheral end thereof. said bottom end face, inclined so as to be positioned opposite to the support surface enough to go to the inner peripheral side, and the bottom end surface located on the outer peripheral edge of the support portion, the support enough to go outside peripheral side The support portion is inclined so as to be located on the opposite side of the surface, and the support portion includes a notch that is divided in the circumferential direction at a portion of the bottom end portion located at the inner peripheral end thereof in the circumferential direction, and the outer periphery of the support portion A notch that divides in the circumferential direction at a part of the circumferential direction of the bottom end portion located at the end, and the support portion is arranged in the seat portion so that the support surface is along the cushioning material provided in the seat portion. And the bottom end portion located at the inner peripheral end of the support portion is located at the inner peripheral end of the seat portion. The bottom end portion adjacent to the bottom end portion and located at the outer peripheral end of the support portion is disposed adjacent to the bottom end portion located at the outer peripheral end of the seat portion, and the support portion The bottom end positioned at the inner peripheral end of the support portion by pressurizing the inclined bottom end surface positioned at the inner peripheral end and the inclined bottom end surface positioned at the outer peripheral end of the support portion. The bottom portion is in pressure contact with the bottom end portion positioned at the inner peripheral end of the seat portion, and the bottom end portion positioned at the outer peripheral end of the support portion is positioned at the outer peripheral end of the seat portion. The bottom end surface of the seat portion and the bottom end surface of the support portion are fixed to the bottom portion by vibration welding in a state of being pressed against the end portion.

また、前記座部の前記内周端に位置する前記底端面が、前記内周側に行く程前記座面側に位置するように傾斜し、前記座部の前記外周端に位置する前記底端面が、前記外周側に行く程前記座面側に位置するように傾斜していることが好ましい。   In addition, the bottom end surface located at the outer peripheral end of the seat portion is inclined such that the bottom end surface located at the inner peripheral end of the seat portion is positioned closer to the seat surface side toward the inner peripheral side. However, it is preferable that it inclines so that it may be located in the said seat surface side, so that it goes to the said outer peripheral side.

本発明の便座の製造方法は、支持部と座部の形状の誤差を自動で吸収することができる。   The toilet seat manufacturing method of the present invention can automatically absorb errors in the shapes of the support portion and the seat portion.

本実施形態の底部を除いた便座の下面図である。It is a bottom view of the toilet seat except the bottom part of this embodiment. 切欠の先端の形状を示したもので、（ａ）は先端を円状にした斜視図であり、（ｂ）は先端を滑らかにした斜視図である。The shape of the front end of the notch is shown, (a) is a perspective view with a circular tip, and (b) is a perspective view with a smooth front end. （ａ）は座面支持具に座部とヒータと緩衝材とを配設し、支持部を配設する前の断面図であり、（ｂ）は振動冶具に底部を嵌め込んだものを上方から座部や支持部に載置させた断面図あり、（ｃ）は振動溶着により形成される便座の断面図である。(A) is a cross-sectional view of a seating surface support provided with a seat, a heater, and a cushioning material, and before the support is provided, and (b) is a top view of a vibration jig fitted with a bottom. FIG. 4C is a cross-sectional view of the toilet seat formed by vibration welding. 従来例の図であり、（ａ）は座面支持具に座部とヒータと緩衝材とを配設し、支持部を配設する前の断面図であり、（ｂ）は振動冶具に底部を嵌め込んだものを上方から座部や支持部に載置させた断面図あり、（ｃ）は振動溶着により形成される便座の断面図である。It is a figure of a prior art example, (a) arrange | positions a seat part, a heater, and a shock absorbing material in a seat surface support tool, and is sectional drawing before arrange | positioning a support part, (b) is a bottom part in a vibration jig. 1 is a cross-sectional view of the seat fitted with a seat portion and a support portion from above, and FIG. 3C is a cross-sectional view of a toilet seat formed by vibration welding.

以下、本発明を添付図面に示す実施形態に基いて説明する。   Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

本実施形態の便器に取付けられる便座４は、座部２と、底部３と、ヒータ４１と、緩衝材４２と、支持部１と、で形成される。   The toilet seat 4 attached to the toilet of this embodiment is formed by the seat portion 2, the bottom portion 3, the heater 41, the cushioning material 42, and the support portion 1.

座部２は、合成樹脂によって形成され、平面視環状をしてその周方向に垂直な断面において上方に凸となり、上面が座面２１となっている。本実施形態では、図３に示すように、座部２の内周端に位置する底端面２２ａは、内周側へ行く程座面２１側に位置するように傾斜し、座部２の外周端に位置する底端面２２ｂは、外周側へ行く程座面２１側に位置するように傾斜している。傾斜については後で詳述する。   The seat portion 2 is made of synthetic resin, has a ring shape in plan view, is convex upward in a cross section perpendicular to the circumferential direction, and the upper surface is a seat surface 21. In the present embodiment, as shown in FIG. 3, the bottom end surface 22 a positioned at the inner peripheral end of the seat portion 2 is inclined so as to be positioned closer to the seat surface 21 toward the inner peripheral side, and the outer periphery of the seat portion 2. The bottom end surface 22b positioned at the end is inclined so as to be positioned closer to the seat surface 21 as it goes to the outer peripheral side. The inclination will be described later in detail.

底部３は、合成樹脂により形成され、平面視環状をしてその周方向に垂直な断面においてＵ字状になっている。   The bottom 3 is made of synthetic resin and has a U shape in a cross section perpendicular to the circumferential direction of the ring when viewed from above.

ヒータ４１は、座部２の内周端と座部２の外周端との間の裏面に設けられる。ヒータ４１は、ニクロム線等の電熱線やいわゆるＰＴＣヒータやマイクロチュービングヒータが適宜用いられる。   The heater 41 is provided on the back surface between the inner peripheral end of the seat portion 2 and the outer peripheral end of the seat portion 2. As the heater 41, a heating wire such as a nichrome wire, a so-called PTC heater, or a microtubing heater is appropriately used.

緩衝材４２は、座部２の内周端と座部２の外周端との間の裏面にヒータ４１を介して設けられ、便座４に荷重がかかった際にヒータ４１を保護するために配設されている。緩衝材４２は、ゴム等の弾性に富んだ部材で形成され、且つ熱に耐性を持つ材質であることが好ましい。   The cushioning material 42 is provided on the back surface between the inner peripheral end of the seat 2 and the outer peripheral end of the seat 2 via a heater 41, and is arranged to protect the heater 41 when a load is applied to the toilet seat 4. It is installed. The cushioning material 42 is preferably made of a material rich in elasticity such as rubber and has a heat resistance.

支持部１は、合成樹脂により形成され、便座４に荷重がかかった際に、荷重を支えるためのものであり、平面視環状をしてその周方向に垂直な断面において上方に凸となっている。支持部１の上面は、座部２の裏面に設けられる緩衝材４２に沿う支持面１１となっている。   The support portion 1 is made of synthetic resin and is used to support a load when a load is applied to the toilet seat 4. The support portion 1 has an annular shape in plan view and is convex upward in a cross section perpendicular to the circumferential direction. Yes. The upper surface of the support portion 1 is a support surface 11 along the cushioning material 42 provided on the back surface of the seat portion 2.

図３に示すように支持部１の内周端に位置する底端面１２ａは、内周側へ行く程支持面１１と反対側に位置するように傾斜し、支持部１の外周端に位置する底端面１２ｂは、外周側へ行く程支持面１１と反対側に位置するように傾斜している。傾斜については後で詳述する。   As shown in FIG. 3, the bottom end surface 12 a located at the inner peripheral end of the support portion 1 is inclined so as to be located on the opposite side of the support surface 11 toward the inner peripheral side, and is located at the outer peripheral end of the support portion 1. The bottom end surface 12b is inclined so as to be located on the side opposite to the support surface 11 as it goes to the outer peripheral side. The inclination will be described later in detail.

図１に示すように、支持部１の内周端に位置する底端部１３ａの周方向の一部に周方向に分断する切欠１４が備えられている。また、支持部１の外周端に位置する底端部１３ｂの周方向の一部に周方向に分断する切欠１４が備えられている。切欠１４は、本実施形態では図１に示すように、支持部１の中央近傍まで設けられており、また切欠１４は支持部１の周方向に複数設けられている。切欠１４については後に詳述する。   As shown in FIG. 1, a notch 14 that is divided in the circumferential direction is provided at a part in the circumferential direction of the bottom end portion 13 a located at the inner circumferential end of the support portion 1. Further, a notch 14 that is divided in the circumferential direction is provided in a part of the bottom end portion 13 b located at the outer peripheral end of the support portion 1 in the circumferential direction. In this embodiment, as shown in FIG. 1, the notches 14 are provided up to the vicinity of the center of the support portion 1, and a plurality of notches 14 are provided in the circumferential direction of the support portion 1. The notch 14 will be described in detail later.

図１に示すように、支持部１の内周端に位置する底端部１３ａの周方向の一部に周方向に垂直な方向にリブ１５が設けられている。また、支持部１の外周端に位置する底端部１３ｂの周方向の一部に周方向に周方向に垂直なリブ１５が設けられている。   As shown in FIG. 1, a rib 15 is provided in a direction perpendicular to the circumferential direction at a part of the circumferential direction of the bottom end portion 13 a located at the inner circumferential end of the support portion 1. Further, ribs 15 that are perpendicular to the circumferential direction are provided in part of the circumferential direction of the bottom end portion 13 b located at the outer peripheral end of the support portion 1.

振動溶着を行う冶具は、振動冶具５１と座面支持具５２とで形成されている。   A jig for performing vibration welding is formed of a vibration jig 51 and a seating surface support 52.

振動冶具５１は底部３に沿うような凹面を有し、凹面に底部３の下面が嵌め込まれて、振動冶具５１に底部３が固定される。   The vibration jig 51 has a concave surface along the bottom portion 3, and the bottom surface of the bottom portion 3 is fitted into the concave surface, and the bottom portion 3 is fixed to the vibration jig 51.

座面支持具５２は座面２１に沿うような凹面を有し、ヒータ４１と緩衝材４２が座部２に設けられた状態で、振動溶着の加圧に対する耐変形性を付与し、座面２１と当接することにより座部２が支持されている。なお、本実施形態では、ヒータ４１と緩衝材４２は接着剤等で接着されるが、これに限定されない。   The seating surface support 52 has a concave surface along the seating surface 21, and in the state in which the heater 41 and the cushioning material 42 are provided on the seating portion 2, imparts deformation resistance against the pressure of vibration welding, and the seating surface The seat 2 is supported by abutting on the seat 21. In the present embodiment, the heater 41 and the buffer material 42 are bonded with an adhesive or the like, but the present invention is not limited to this.

支持部１は、支持面１１が座部２に設けられた緩衝材４２に沿うように座部２内に配置される。支持部１の内周端の底端部１３ａが座部２の内周端の底端部２３ａと隣接し、支持部１の外周端の底端部１３ｂが座部２の外周端の底端部２３ｂに隣接するように配置される。   The support portion 1 is disposed in the seat portion 2 such that the support surface 11 is along the cushioning material 42 provided on the seat portion 2. The bottom end portion 13a of the inner peripheral end of the support portion 1 is adjacent to the bottom end portion 23a of the inner peripheral end of the seat portion 2, and the bottom end portion 13b of the outer peripheral end of the support portion 1 is the bottom end of the outer peripheral end of the seat portion 2. It arrange | positions so that the part 23b may be adjoined.

底部３が取付けられた振動冶具５１を、座部２とヒータ４１と緩衝材４２と支持部１とが取付けられた座面支持具５２の上方から覆うように載置する。そして、振動冶具５１を加圧していく。底部３の内周端の底端面３１ａと、支持部１の内周端の傾斜した底端面１２ａと座部２の内周端の傾斜した底端面２２ａと、が加圧される。また、底部３の外周端の底端面３１ｂと、支持部１の外周端の傾斜した底端面１２ｂと座部２の外周端の傾斜した底端面２２ｂと、が加圧される。上述した傾斜が設けられていることにより、振動溶着により固定される際、加圧力が傾斜により左右方向に押し広げられる方向の力に変換され、支持部１と座部２の傾斜が左右方向に広げられる。そして、支持部１の内周端の底端部１３ａが座部２の内周端の底端部２３ａに圧接し、支持部１の外周端の底端部１３ｂが座部２の外周端の底端部２３ｂに圧接する。支持部１が加圧され部材と圧接する際、切欠１４の支持部１の中心方向の先端が角張っていると応力集中が起こり支持部１が割れ易くなる。従って、図２（ａ）に示すように先端の形状を円にしたり、図２（ｂ）に示すように角を滑らかにしたりしている。これらの圧接した状態で、座部２の底端面２２と支持部１の底端面１２と底部３の底端面３１とが振動溶着により固定される。   The vibration jig 51 to which the bottom portion 3 is attached is placed so as to cover from above the seat surface support 52 to which the seat portion 2, the heater 41, the cushioning material 42, and the support portion 1 are attached. Then, the vibration jig 51 is pressurized. The bottom end surface 31a at the inner peripheral end of the bottom portion 3, the inclined bottom end surface 12a at the inner peripheral end of the support portion 1, and the inclined bottom end surface 22a at the inner peripheral end of the seat portion 2 are pressurized. Further, the bottom end surface 31 b at the outer peripheral end of the bottom portion 3, the inclined bottom end surface 12 b at the outer peripheral end of the support portion 1, and the inclined bottom end surface 22 b at the outer peripheral end of the seat portion 2 are pressurized. By being provided with the above-described inclination, when being fixed by vibration welding, the applied pressure is converted into a force in a direction to be expanded in the left-right direction by the inclination, and the inclination of the support portion 1 and the seat portion 2 is changed in the left-right direction. Can be spread. The bottom end portion 13a of the inner peripheral end of the support portion 1 is in pressure contact with the bottom end portion 23a of the inner peripheral end of the seat portion 2, and the bottom end portion 13b of the outer peripheral end of the support portion 1 is the outer end of the seat portion 2. Press contact with the bottom end 23b. When the support portion 1 is pressed and pressed against the member, if the tip of the notch 14 in the center direction of the support portion 1 is square, stress concentration occurs and the support portion 1 is easily cracked. Therefore, the shape of the tip is a circle as shown in FIG. 2A, or the corner is smoothed as shown in FIG. 2B. With these pressure contacted, the bottom end surface 22 of the seat portion 2, the bottom end surface 12 of the support portion 1, and the bottom end surface 31 of the bottom portion 3 are fixed by vibration welding.

以上より、上記した便座４の製造方法によれば、支持部１に切欠１４を設けることにより、支持部１が切欠１４を持たない場合よりも支持部１の形状を変形させることができる。そして、切欠１４が多数設けられている場合、支持部１が複数に分断されている。そのため、座部２と支持部１と底部３とが振動溶着で固定される際、支持部１が分断されている部分毎に座部２に沿うように変形することができる。従って、支持部１と座部２に寸法誤差があっても、支持部１と座部２とは密着させることができる。   As described above, according to the method for manufacturing the toilet seat 4 described above, by providing the support portion 1 with the notches 14, the shape of the support portion 1 can be deformed more than when the support portion 1 does not have the notches 14. And when many notches 14 are provided, the support part 1 is divided | segmented into plurality. Therefore, when the seat part 2, the support part 1, and the bottom part 3 are fixed by vibration welding, it can deform | transform so that the part along which the support part 1 is divided | segmented may be along the seat part 2. FIG. Therefore, even if there is a dimensional error between the support part 1 and the seat part 2, the support part 1 and the seat part 2 can be brought into close contact with each other.

また、支持部１の底端面１２ａの傾斜と座部２の底端面２２ａの傾斜と、支持部１の底端面１２ｂの傾斜と座部２の底端面２２ｂの傾斜と、が設けられていることにより、振動冶具５１を介しての加圧により、上記した傾斜が左右方向に広げられる。従って、支持部１と座部２とを密着させることができる。   In addition, an inclination of the bottom end surface 12a of the support portion 1 and an inclination of the bottom end surface 22a of the seat portion 2, and an inclination of the bottom end surface 12b of the support portion 1 and an inclination of the bottom end surface 22b of the seat portion 2 are provided. Thus, the inclination described above is expanded in the left-right direction by pressurization through the vibration jig 51. Therefore, the support part 1 and the seat part 2 can be stuck.

１ 支持部
１１ 支持面
１２ 底端面
１２ａ 底端面
１２ｂ 底端面
１３ａ 底端面
１３ｂ 底端面
１４ 切欠
１５ リブ
２ 座部
３ 底部
４ 便座 DESCRIPTION OF SYMBOLS 1 Support part 11 Support surface 12 Bottom end face 12a Bottom end face 12b Bottom end face 13a Bottom end face 13b Bottom end face 14 Notch 15 Rib 2 Seat part 3 Bottom part 4 Toilet seat

Claims (2)

平面視環状をしてその周方向に垂直な断面において上方に凸となり、上面が座面となる座部と、
平面視環状をして、前記座部の平面視における内周端に位置する底端面と外周端に位置する底端面とに振動溶着により固定される底部と、
前記座部の前記内周端と前記外周端との間の裏面に設けられるヒータと、
前記座部の前記内周端と前記外周端との間の前記裏面に前記ヒータを介して設けられる緩衝材と、
平面視環状をしてその周方向に垂直な断面において上方に凸となり、上面が前記座部の前記裏面に設けられる前記緩衝材に沿う支持面となり、平面視における内周端に位置する底端面と外周端に位置する底端面とが振動溶着により前記底部に固定される支持部と、を備えた便座の製造方法であって、
前記座部は、前記ヒータと前記緩衝材が設けられた状態で、振動溶着の加圧に対する耐変形性を付与する座面支持具により前記座面が支持され、
前記支持部は、その前記内周端に位置する前記底端面が、内周側に行く程前記支持面と反対側に位置するように傾斜し、且つ、前記支持部の前記外周端に位置する前記底端面が、外周側へ行く程前記支持面と反対側に位置するように傾斜し、
前記支持部は、その前記内周端に位置する底端部の周方向の一部に周方向に分断する切欠を備え、前記支持部の前記外周端に位置する底端部の周方向の一部に周方向に分断する切欠を備え、
前記支持部は、その前記支持面が前記座部に設けられた前記緩衝材に沿うように前記座部内に配置され、前記支持部の前記内周端に位置する前記底端部が前記座部の前記内周端に位置する底端部と隣接し、且つ、前記支持部の前記外周端に位置する前記底端部が前記座部の前記外周端に位置する底端部と隣接するように配置され、
前記支持部の前記内周端に位置する傾斜した前記底端面および前記支持部の前記外周端に位置する傾斜した前記底端面に前記底部が加圧されて、前記支持部の前記内周端に位置する前記底端部が前記座部の前記内周端に位置する前記底端部に圧接し、且つ、前記支持部の前記外周端に位置する前記底端部が前記座部の前記外周端に位置する前記底端部に圧接した状態で、前記座部の前記底端面および前記支持部の前記底端面が前記底部に振動溶着により固定されることを特徴とする便座の製造方法。 In a cross-section perpendicular to the circumferential direction in a ring shape in plan view, the seat is convex upward, and the upper surface is a seat surface;
A bottom portion that has a ring shape in plan view and is fixed by vibration welding to a bottom end surface located at an inner peripheral end and a bottom end surface located at an outer peripheral end in a plan view of the seat;
A heater provided on the back surface between the inner peripheral end and the outer peripheral end of the seat;
A cushioning material provided via the heater on the back surface between the inner peripheral end and the outer peripheral end of the seat;
A bottom end surface located in an inner peripheral end in a plan view, having a ring shape in a plan view and projecting upward in a cross section perpendicular to the circumferential direction thereof, and an upper surface serving as a support surface along the cushioning material provided on the back surface of the seat portion And a support part fixed to the bottom part by vibration welding with a bottom end surface located at the outer peripheral end, and a method of manufacturing a toilet seat,
In the state where the heater and the cushioning material are provided, the seat portion is supported by a seat surface support that imparts deformation resistance to pressurization of vibration welding,
The support portion is inclined so that the bottom end surface located at the inner peripheral end thereof is located on the opposite side of the support surface toward the inner peripheral side , and is located at the outer peripheral end of the support portion. It said bottom edge is inclined so as to be positioned opposite to the support surface enough to go outside peripheral side,
The support portion includes a notch that divides in the circumferential direction at a part of the circumferential direction of the bottom end portion that is located at the inner circumferential end thereof, and one circumferential direction of the bottom end portion that is located at the outer circumferential end of the support portion. The part has a notch that divides in the circumferential direction,
The support portion is disposed in the seat portion so that the support surface thereof is along the cushioning material provided in the seat portion, and the bottom end portion located at the inner peripheral end of the support portion is the seat portion. And the bottom end portion located at the outer peripheral end of the support portion is adjacent to the bottom end portion located at the outer peripheral end of the seat portion. Arranged,
The bottom is pressed against the inclined bottom end surface positioned at the inner peripheral end of the support portion and the inclined bottom end surface positioned at the outer peripheral end of the support portion, and is applied to the inner peripheral end of the support portion. The bottom end portion positioned is in pressure contact with the bottom end portion positioned at the inner peripheral end of the seat portion, and the bottom end portion positioned at the outer peripheral end of the support portion is the outer peripheral end of the seat portion. A method of manufacturing a toilet seat, wherein the bottom end surface of the seat portion and the bottom end surface of the support portion are fixed to the bottom portion by vibration welding in a state where the bottom end portion is in pressure contact with the bottom end portion. 前記座部の前記内周端に位置する前記底端面が、前記内周側に行く程前記座面側に位置するように傾斜し、前記座部の前記外周端に位置する前記底端面が、前記外周側に行く程前記座面側に位置するように傾斜していることを特徴とする請求項１記載の便座の製造方法。 The bottom end surface positioned at the inner peripheral end of the seat portion is inclined so as to be positioned closer to the seat surface side toward the inner peripheral side, and the bottom end surface positioned at the outer peripheral end of the seat portion is 2. The toilet seat manufacturing method according to claim 1, wherein the toilet seat is inclined so as to be positioned closer to the seat surface as it goes to the outer peripheral side .
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CN110450425A (en) * 2019-07-25 2019-11-15 江门市蓝比斯智能科技有限公司 Toilet seat vibration welding process and its mold
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