JP2022095444A - Drainage member - Google Patents

Drainage member Download PDF

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JP2022095444A
JP2022095444A JP2020208776A JP2020208776A JP2022095444A JP 2022095444 A JP2022095444 A JP 2022095444A JP 2020208776 A JP2020208776 A JP 2020208776A JP 2020208776 A JP2020208776 A JP 2020208776A JP 2022095444 A JP2022095444 A JP 2022095444A
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annular packing
drain plug
drainage member
mounting hole
tank body
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JP7720554B2 (en
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健一 櫻
Kenichi Sakura
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Maruichi Corp
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Maruichi Corp
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Abstract

To provide a drainage member attached to a tank body, that eliminates a step that occurs between a flange part of a drain plug and a recess part of the tank body, and can prevent a positional deviation of an annular packing used for construction.SOLUTION: In a drainage member formed of: a tank body having a mounting hole; a drain plug having a flange part protruding toward the outside of a peripheral edge, and attached to the mounting hole by locking the flange part to a peripheral edge of the mounting hole; and an annular packing arranged between the peripheral edge of the mounting hole of the tank body and the flange part of the drain plug to form a watertight state, a shape of the annular packing is such that a convex part is provided on upper and lower surfaces of the annular packing in a direction of a central axis in the cross-sectional view, and a thin part having a thinned thickness of an outer edge of the annular packing is formed.SELECTED DRAWING: Figure 2

Description

本発明は、槽体の排水栓を水密に槽体に取り付けるための排水部材に関するものである。 The present invention relates to a drainage member for watertightly attaching a drain plug of a tank body to the tank body.

洗面台等、使用によって排水が生じる槽体の排水を処理する為に、槽体には管体等からなる排水部材を利用して配管を行い、槽体内に生じた排水を下水側に排出するように構成している。
ここで、槽体に直接取り付けられる配管部材として、排水栓と呼ばれる部材が知られている。
排水栓は、略円筒形状の管体の上端に、外周方向に延出した鍔部を設けてなり、また鍔部の下方外側面に雄ネジを設けてなる。
排水栓が取り付けられる槽体は、上方が開放した箱体であって、その底面に排水栓を取り付けるための取付孔を設け、該取付孔の周囲に、鍔部を配置するための窪み部を設けてなる。
また、排水栓の雄ネジと螺合する雌ネジを備えた板ナット部材を備えてなる。また、施工完了時に、窪み部と鍔部の間を水密的に接続するための、環状パッキンを備えてなる。
槽体の取付孔に排水栓を取り付ける場合、取付孔周縁の窪み部に、断面長方形形状を環状に形成したゴムなどの弾性素材からなる環状パッキンを用い、排水栓の鍔部下面が、窪み部の上面と、環状パッキンを介して当接するように配置する。即ち、窪み部と鍔部の間に環状パッキンを配置する。この状態から板ナット部材の雌ネジを、排水栓の雄ネジに螺合させることで、鍔部と板ナット部材とが、取付孔周辺を挟持するため、排水栓を槽体の取付孔に取り付けることができる。また、鍔部下面と取付孔上面の間に環状パッキンを配置して当接させることで、槽体と排水栓の間を水密に接続し、漏水が生じないように構成されている。 In order to treat the drainage of the tank body that is generated by use such as a washbasin, piping is performed on the tank body using a drainage member consisting of a pipe body, etc., and the drainage generated in the tank body is discharged to the sewage side. It is configured as follows.
Here, as a piping member directly attached to the tank body, a member called a drain plug is known.
The drain plug is provided with a flange portion extending in the outer peripheral direction at the upper end of a substantially cylindrical tube body, and a male screw is provided on the lower outer surface of the flange portion.
The tank body to which the drain plug is attached is a box body with an open upper part, a mounting hole for mounting the drain plug is provided on the bottom surface thereof, and a recess for arranging the crossguard is provided around the mounting hole. It will be provided.
Further, a plate nut member having a female screw to be screwed with the male screw of the drain plug is provided. Further, when the construction is completed, an annular packing is provided for watertightly connecting the recessed portion and the flange portion.
When attaching a drain plug to the mounting hole of the tank body, use an annular packing made of an elastic material such as rubber having a rectangular cross-section formed in an annular shape in the recessed portion at the periphery of the mounting hole, and the lower surface of the flange of the drain plug is the recessed portion. It is arranged so as to be in contact with the upper surface of the water surface via the annular packing. That is, the annular packing is arranged between the recessed portion and the flange portion. From this state, by screwing the female screw of the plate nut member into the male screw of the drain plug, the collar and the plate nut member sandwich the vicinity of the mounting hole, so that the drain plug is attached to the mounting hole of the tank body. be able to. Further, by arranging an annular packing between the lower surface of the flange portion and the upper surface of the mounting hole and bringing them into contact with each other, the tank body and the drain plug are watertightly connected so that water leakage does not occur.

特開平１０－１６８９７３号公報Japanese Unexamined Patent Publication No. 10-168973

近年、上記排水栓において、意匠性確保の目的のため、鍔部の厚み、特に外径部分の厚みを薄くする形状が提案されている。しかし、図１１や図１２に示した従来の断面が長方形の環状パッキンでは、薄くした排水栓の鍔部と槽体の窪み部に環状パッキンを配置する際に、環状パッキンの厚みにより、図１１に示したように、鍔部と槽体の取付孔周縁の間に段差が生じてしまうという問題があった。 In recent years, for the purpose of ensuring the design of the drain plug, a shape has been proposed in which the thickness of the collar portion, particularly the thickness of the outer diameter portion is reduced. However, in the conventional annular packing having a rectangular cross section shown in FIGS. 11 and 12, when the annular packing is arranged in the narrowed flange portion of the drain plug and the recessed portion of the tank body, the thickness of the annular packing causes FIG. As shown in the above, there is a problem that a step is generated between the flange portion and the peripheral edge of the mounting hole of the tank body.

そこで本発明は上記問題点に鑑み、排水栓の鍔部と槽体の窪み部の間の段差をなくし、且つ、環状パッキンが位置ずれしない排水部材を提供する。 Therefore, in view of the above problems, the present invention provides a drainage member that eliminates a step between the flange portion of the drain plug and the recessed portion of the tank body and that the annular packing does not shift in position.

上記課題を解決するための請求項１に記載の本発明は、
取付孔を備えた槽体と、
周縁の外側に向かって突出した鍔部を備え、該鍔部が前記取付孔の周縁に係止されることで、前記取付孔に取り付けられる排水栓と、
前記槽体の取付孔の周縁と前記排水栓の鍔部の間に配置され、水密な状態を形成する環状パッキンからなる排水部材において、
前記環状パッキンの断面視において、環状パッキンの中心軸方向の上方と下方となる面に凸部を設け、
前記環状パッキンの外縁の厚みを薄くした薄肉部としたことを特徴とする排水部材である。 The present invention according to claim 1 for solving the above problems
A tank body with mounting holes and
A drain plug that is attached to the mounting hole by having a crossguard that protrudes toward the outside of the peripheral edge and is locked to the peripheral edge of the mounting hole.
In a drainage member made of an annular packing, which is arranged between the peripheral edge of the mounting hole of the tank body and the collar of the drain plug and forms a watertight state.
In the cross-sectional view of the annular packing, convex portions are provided on the upper and lower surfaces of the annular packing in the central axis direction.
It is a drainage member characterized by having a thin-walled portion having a thin outer edge of the annular packing.

請求項２に記載の本発明は、前記排水部材において、
前記環状パッキンに応力が生じていない状態において、環状パッキンが、中心軸に垂直な平面を中心とした面対称形状としたことを特徴とする請求項１に記載の排水部材である。 The present invention according to claim 2 is the drainage member.
The drainage member according to claim 1, wherein the annular packing has a plane-symmetrical shape centered on a plane perpendicular to the central axis in a state where no stress is generated in the annular packing.

請求項３に記載の本発明は、前記排水部材において、
前記取付孔の周縁に鍔部を収納する窪み部を設け、
前記環状パッキンの外径が窪み部の内径と略同一であることを特徴とする請求項１又は請求項２に記載の排水部材である。 The present invention according to claim 3 is the drainage member.
A recess for accommodating the crossguard is provided on the periphery of the mounting hole.
The drainage member according to claim 1 or 2, wherein the outer diameter of the annular packing is substantially the same as the inner diameter of the recessed portion.

請求項４に記載の本発明は、前記排水部材において、
前記環状パッキンの内径が排水栓の外径と略同一である請求項１乃至請求項３のいずれか一つに記載の排水部材である。 The present invention according to claim 4 is the drainage member.
The drainage member according to any one of claims 1 to 3, wherein the inner diameter of the annular packing is substantially the same as the outer diameter of the drain plug.

請求項５に記載の本発明は、前記環状パッキンにおいて、断面視ひし形形状としたことを特徴とする請求項１乃至請求項４のいずれか一つに記載の排水部材である。 The present invention according to claim 5 is the drainage member according to any one of claims 1 to 4, characterized in that the annular packing has a diamond-shaped cross-sectional view.

請求項６に記載の本発明は、前記環状パッキンにおいて、断面視十字形状としたことを特徴とする請求項１乃至請求項４のいずれか一つに記載の排水部材である。 The present invention according to claim 6 is the drainage member according to any one of claims 1 to 4, wherein the annular packing has a cross-sectional cross-sectional shape.

上記排水部材によれば、排水栓の鍔部を薄くしたものについて、槽体に取り付けた状態についての環状パッキンの位置ずれ及び排水栓の鍔部と環状パッキンの間に段差が形成されないようにした。 According to the above drainage member, for the thinned drain plug, the position of the annular packing is not displaced when it is attached to the tank body, and a step is not formed between the drain plug collar and the annular packing. ..

第一実施例の排水部材の、施工状態を示す断面図である。It is sectional drawing which shows the construction state of the drainage member of 1st Example. 図１のＡ部拡大図である。It is an enlarged view of the part A of FIG. 第一実施例の排水部材の、部材構成を示す参考図である。It is a reference figure which shows the member composition of the drainage member of 1st Example. 第一実施例の排水部材の、施工途中の状態を示す参考図である。It is a reference figure which shows the state in the middle of construction of the drainage member of 1st Example. 断面十字形状の環状パッキンを使用した排水部材の、施工状態を示す断面図である。It is sectional drawing which shows the construction state of the drainage member which used the circular packing of the cross-shaped cross section. 図５のＢ部拡大図である。FIG. 5 is an enlarged view of part B in FIG. 図５の排水部材の、部材構成を示す参考図である。It is a reference figure which shows the member composition of the drainage member of FIG. 断面三角形状の環状パッキンを使用した排水部材の、施工状態を示す断面図である。It is sectional drawing which shows the construction state of the drainage member which used the annular packing of a triangular shape. 図８の実施例の排水部材の、部材構成を示す参考図である。It is a reference figure which shows the member composition of the drainage member of the Example of FIG. オーバーフロー排水口の排水部材に本発明の環状パッキンを採用した参考図である。It is a reference figure which adopted the annular packing of this invention for the drainage member of an overflow drainage port. 従来の排水部材の、施工状態を示す断面図である。It is sectional drawing which shows the construction state of the conventional drainage member. 図１１の従来例の排水部材の、部材構成を示す参考図である。It is a reference figure which shows the member composition of the drainage member of the conventional example of FIG.

以下、図面を参照しながら本発明の第一実施例の排水部材を説明する。尚、以下に記載する説明は実施形態の理解を容易にするためのものであり、これによって発明が制限して理解されるものではない。 Hereinafter, the drainage member of the first embodiment of the present invention will be described with reference to the drawings. It should be noted that the description described below is for facilitating the understanding of the embodiments, and the invention is not limited and understood by this.

図１～図４に示すように、本発明の排水部材は、槽体１、排水栓２、環状パッキン３、板ナット部材４、配管用の管体（図示せず）から構成される。 As shown in FIGS. 1 to 4, the drainage member of the present invention is composed of a tank body 1, a drain plug 2, an annular packing 3, a plate nut member 4, and a pipe body (not shown) for piping.

槽体１は、浴室に配置される浴槽や洗面所に配置される洗面ボウル等の槽体１であって、上方が開放された箱体形状を成し、その底面に、排水栓２が取り付けられる開口部分である取付孔１ａと、
取付孔１ａの周縁に、後述する排水栓２の鍔部２ａを収納するための窪み部１ｂを有してなる。窪み部１ｂは槽体の底面からすり鉢状に側面に傾斜を備えた、下方に突出した窪み部分であり、突出部分の下端から内径方向に係止部１ｃを設け、該係止部１ｃの中央に取付孔１ａを形成してなる。 The tank body 1 is a tank body 1 such as a bathtub arranged in a bathroom or a washbasin arranged in a washroom, and has a box body shape with an open upper part, and a drain plug 2 is attached to the bottom surface thereof. The mounting hole 1a, which is the opening portion to be formed,
A recessed portion 1b for accommodating the flange portion 2a of the drain plug 2 described later is provided on the peripheral edge of the mounting hole 1a. The recessed portion 1b is a recessed portion protruding downward from the bottom surface of the tank body in a mortar-like shape, and a locking portion 1c is provided in the inner diameter direction from the lower end of the protruding portion, and the center of the locking portion 1c. A mounting hole 1a is formed in the.

排水栓２は、図１～図４に示す通り、円筒状の管体であって、管体の上端に、外周方向に向かって突出した鍔部２ａを周縁に沿って設けてなり、
また、その内部に槽体１から流入した排水が排出される排水部２ｂを有してなる。
また、円筒部分の外側面であって、鍔部２ａの下方外側面に雄ネジ２ｃを設けてなる。
また、本実施例では、意匠性を良好とするため、鍔部２ａは外縁ほど肉厚が薄くなるように構成されている。
排水栓２は、施工完了時、上記鍔部２ａが槽体１の窪み部１ｂに収納された状態で槽体１に取り付けられる。 As shown in FIGS. 1 to 4, the drain plug 2 is a cylindrical pipe body, and a flange portion 2a protruding toward the outer peripheral direction is provided at the upper end of the pipe body along the peripheral edge.
Further, it has a drainage portion 2b in which the drainage that has flowed in from the tank body 1 is discharged.
Further, a male screw 2c is provided on the lower outer surface of the flange portion 2a, which is the outer surface of the cylindrical portion.
Further, in the present embodiment, in order to improve the design, the collar portion 2a is configured so that the wall thickness becomes thinner toward the outer edge.
When the construction is completed, the drain plug 2 is attached to the tank body 1 with the flange portion 2a housed in the recessed portion 1b of the tank body 1.

環状パッキン３は、円環形状のゴム等からなる弾性部材であり、断面視において、図１～図４に示したように断面略ひし形形状を成す。
断面のひし形形状は、中心軸方向の上方と下方に凸部３ａを設け、外縁３ｂ及び内縁３ｃには環状パッキン３の厚みを薄くした薄肉部３ｄを有してなり、また、環状パッキン３に応力がかかっていない場合、図３にあるように、環状パッキン３の凸部３ａが、中心軸に垂直な平面を中心とした面対称形状に形成される。
尚、環状パッキン３の中心軸とは環状パッキン３を底面に配置した時には、垂直方向に中心軸があるものとし、側面に配置したときには水平方向に中心軸があるものとする。
また、環状パッキン３の外径は、窪み部１ｂの内径より若干小さいがほぼ略同一であり、また、環状パッキン３の内径は、排水栓２の外径よりも若干大きいが、ほぼ略同一であるように構成されている。
該環状パッキン３は、施工完了時には槽体１の取付孔１ａの周縁上面と前記排水栓２の鍔部２ａ下面の間に配置され、水密な状態を形成する。 The annular packing 3 is an elastic member made of an annular rubber or the like, and has a substantially diamond-shaped cross section as shown in FIGS. 1 to 4 in a cross-sectional view.
The rhombus shape of the cross section is provided with convex portions 3a above and below in the central axis direction, and the outer edge 3b and the inner edge 3c have a thin portion 3d in which the thickness of the annular packing 3 is reduced, and the annular packing 3 has a thin portion 3d. When no stress is applied, as shown in FIG. 3, the convex portion 3a of the annular packing 3 is formed in a plane-symmetrical shape centered on a plane perpendicular to the central axis.
The central axis of the annular packing 3 is such that when the annular packing 3 is arranged on the bottom surface, the central axis is in the vertical direction, and when the annular packing 3 is arranged on the side surface, the central axis is in the horizontal direction.
Further, the outer diameter of the annular packing 3 is slightly smaller than the inner diameter of the recessed portion 1b but is substantially the same, and the inner diameter of the annular packing 3 is slightly larger than the outer diameter of the drain plug 2 but is substantially the same. It is configured to be.
When the construction is completed, the annular packing 3 is arranged between the upper surface of the peripheral edge of the mounting hole 1a of the tank body 1 and the lower surface of the flange portion 2a of the drain plug 2 to form a watertight state.

板ナット部材４は、内部に排水栓２の雄ネジ２ｃと螺合する雌ネジ４ａを備えたナット部材であって、施工完了時、排水栓２の雄ネジ２ｃと螺合して、鍔部下面とナット部材上面とで取付孔１ａの周縁を挟持して、排水栓２を取付孔１ａに取り付けする。 The plate nut member 4 is a nut member having a female screw 4a screwed with the male screw 2c of the drain plug 2 inside, and when the construction is completed, the plate nut member 4 is screwed with the male screw 2c of the drain plug 2 to form a flange portion. The peripheral edge of the mounting hole 1a is sandwiched between the lower surface and the upper surface of the nut member, and the drain plug 2 is attached to the mounting hole 1a.

以下、排水部材の施工方法について説明する。
まず、排水栓２の円筒部分の周囲であって、鍔部２ａの下方に環状パッキン３を配置する。
次に、取付孔１ａに排水栓２の円筒部分を上方から挿通する。前述の通り、環状パッキン３の外径は、窪み部１ｂの内径より若干小さいがほぼ略同一であり、また、環状パッキン３の内径は、排水栓２の外径よりも若干大きいが、ほぼ略同一であるように構成されている。このため、図４にあるように、環状パッキンの外側面は窪み部１ｂの内側面に、環状パッキン３の内側面は排水栓２の外側面に、それぞれ接して環状パッキン３の移動を防ぐため、施工作業の際に、環状パッキン３が位置ずれを生じることは無く、取付孔１ａと環状パッキン３と排水栓２の鍔部２ａとは、平面視適正な取付状態である同心円状態を維持する。
更に排水栓２を下方に挿通し、排水栓２の鍔部下面が、環状パッキン３の上面に当接し、取付孔１ａ周縁の係止部１ｃ上面が、環状パッキン３の下面に当接するようにする。
この状態でも、位置ずれが起きないことから、取付孔１ａと環状パッキン３と排水栓２の鍔部２ａとは、平面視同心円状態を維持する。
更に、槽体１の下方から、板ナット部材４を排水栓２に挿通し、排水栓２の雄ネジ２ｃに板ナット部材４の雌ネジ４ａを螺合させる。螺合が進むと、板ナット部材４の上面が、取付孔１ａの周縁下方に当接し、更に締め付けを進めることで、図１のように、排水栓２の鍔部２ａと、板ナット部材４とで、取付孔１ａの周縁を挟持して排水栓２の槽体１への取り付けが完了する。この時、前述の通り、環状パッキン３は位置ずれを生じないように構成されているため、取付孔１ａと環状パッキン３と排水栓２の鍔部２ａとは、平面視同心円状態を維持する。施工時に、環状パッキン３が、適正な位置からずれた位置に取り付けられると、排水栓２と槽体１との水密的な当接が不完全となり、漏水が生じることがあるが、本発明では取付孔１ａと環状パッキン３と排水栓２の鍔部２ａとが適正な施工状態である平面視同心円状態にて施工されるため漏水を生じない。
また、この適正な施工状態においては、環状パッキン３の上方の凸部３ａが、全周に亘って鍔部２ａ下面に当接し、下方の凸部３ａが、全周に亘って取付孔１ａ周縁の係止部１ｃ上面に当接し、更に板ナット部材４の螺合によって上下の凸部３ａが強く当接していることで、水密的な接続が行われて漏水が生じない。特に、本発明においては、当接部分を断面視凸部３ａ、平面視においては線状として面ではなく線で当接が行われるようにすることで、この線の部分に当接の応力が集中し、確実な水密が行われるようにしている。
また、本実施例では、環状パッキン３の外縁３ｂ部分を薄肉部３ｄとしている。本発明では、意匠性のため、鍔部２ａの外縁を薄くし、図１、図２のように、槽体の窪み部１ｂ内側面にほぼ接するように構成している。このため、鍔部２ａと窪み部１ｂの交差部分の隙間は相当狭くなっている。従来の断面長方形形状の環状パッキン３を用いると、図１１、図１２のように段差を生じてしまうが、本実施例の環状パッキン３は、外縁３ｂが薄肉部３ｄのため、外縁部では鍔部２ａや窪み部１ｂに干渉しないため段差を生じることなく、意匠的に良好な施工を行うことができる。
更に、排水栓２の下方に図示しないパイプ管等の管体を用いて下水側への配管に接続することで、排水栓２の、槽体１への施工が完了する。 Hereinafter, the construction method of the drainage member will be described.
First, the annular packing 3 is arranged around the cylindrical portion of the drain plug 2 and below the flange portion 2a.
Next, the cylindrical portion of the drain plug 2 is inserted into the mounting hole 1a from above. As described above, the outer diameter of the annular packing 3 is slightly smaller than the inner diameter of the recessed portion 1b but is substantially the same, and the inner diameter of the annular packing 3 is slightly larger than the outer diameter of the drain plug 2, but is substantially the same. It is configured to be the same. Therefore, as shown in FIG. 4, the outer surface of the annular packing is in contact with the inner surface of the recess 1b, and the inner surface of the annular packing 3 is in contact with the outer surface of the drain plug 2 to prevent the annular packing 3 from moving. During the construction work, the annular packing 3 does not shift in position, and the mounting hole 1a, the annular packing 3, and the flange portion 2a of the drain plug 2 maintain a concentric circular state, which is an appropriate mounting state in a plan view. ..
Further, the drain plug 2 is inserted downward so that the lower surface of the flange portion of the drain plug 2 abuts on the upper surface of the annular packing 3 and the upper surface of the locking portion 1c on the periphery of the mounting hole 1a abuts on the lower surface of the annular packing 3. do.
Even in this state, since the misalignment does not occur, the mounting hole 1a, the annular packing 3, and the flange portion 2a of the drain plug 2 maintain a concentric state in a plan view.
Further, the plate nut member 4 is inserted into the drain plug 2 from below the tank body 1, and the female screw 4a of the plate nut member 4 is screwed into the male screw 2c of the drain plug 2. As the screwing progresses, the upper surface of the plate nut member 4 comes into contact with the lower edge of the mounting hole 1a, and further tightening is performed, so that the flange portion 2a of the drain plug 2 and the plate nut member 4 are further tightened. Then, the attachment of the drain plug 2 to the tank body 1 is completed by sandwiching the peripheral edge of the attachment hole 1a. At this time, as described above, since the annular packing 3 is configured so as not to cause a misalignment, the mounting hole 1a, the annular packing 3, and the flange portion 2a of the drain plug 2 maintain a concentric state in a plan view. If the annular packing 3 is attached at a position deviated from an appropriate position during construction, the watertight contact between the drain plug 2 and the tank body 1 may be incomplete and water leakage may occur. Since the mounting hole 1a, the annular packing 3, and the flange portion 2a of the drain plug 2 are constructed in a concentric state in a plan view, which is an appropriate construction state, no water leakage occurs.
Further, in this proper construction state, the upper convex portion 3a of the annular packing 3 abuts on the lower surface of the flange portion 2a over the entire circumference, and the lower convex portion 3a is the peripheral edge of the mounting hole 1a over the entire circumference. In contact with the upper surface of the locking portion 1c of the above, and further, the upper and lower convex portions 3a are strongly in contact with each other by screwing the plate nut member 4, so that a watertight connection is made and water leakage does not occur. In particular, in the present invention, the contact portion is formed as a convex portion 3a in cross-sectional view, and in a plan view, the contact is made by a line instead of a surface, so that the stress of contact is applied to this line portion. Concentrate and ensure watertightness.
Further, in this embodiment, the outer edge 3b portion of the annular packing 3 is a thin-walled portion 3d. In the present invention, for the sake of design, the outer edge of the flange portion 2a is thinned so as to be substantially in contact with the inner side surface of the recessed portion 1b of the tank body as shown in FIGS. 1 and 2. Therefore, the gap at the intersection of the flange portion 2a and the recessed portion 1b is considerably narrowed. When the conventional annular packing 3 having a rectangular cross section is used, a step is generated as shown in FIGS. 11 and 12, but in the annular packing 3 of this embodiment, since the outer edge 3b is a thin wall portion 3d, the outer edge portion has a crossguard. Since it does not interfere with the portion 2a or the recessed portion 1b, it is possible to perform good design work without causing a step.
Further, by connecting the drain plug 2 to the pipe to the sewage side by using a pipe body such as a pipe (not shown) below the drain plug 2, the construction of the drain plug 2 to the tank body 1 is completed.

次に槽体を使用した場合の、排水の流れについて説明する。
槽体１を使用し、槽体１内部に排水が発生すると、排水は、槽体１の底面の排水部２ｂから排水栓２内部を通り配管を通過して下水側に排出される。この時、上記のように、環状パッキン３の上側の凸部３ａと鍔部２ａ下面が、下側の凸部３ａと窪み部１ｂ上面が、それぞれ強い応力で線状部分に集中する形で当接しているため、排水栓２と槽体１の間から水漏れ等の止水不良が発生しない。 Next, the flow of drainage when the tank body is used will be described.
When the tank body 1 is used and drainage is generated inside the tank body 1, the drainage is discharged from the drainage portion 2b on the bottom surface of the tank body 1 to the sewage side through the inside of the drain plug 2 and the pipe. At this time, as described above, the upper convex portion 3a and the lower surface of the flange portion 2a of the annular packing 3 and the upper surface of the lower convex portion 3a and the concave portion 1b are concentrated on the linear portion with strong stress. Since they are in contact with each other, water leakage or other water stoppage failure does not occur between the drain plug 2 and the tank body 1.

上記実施例においては、前記環状パッキン３に応力が生じていない状態において、図３のように、環状パッキン３が、中心軸に垂直な平面を中心とした面対称形状として構成している。このため、施工を行う際、環状パッキン３の入れる方向を誤った、所謂入れ間違いを生じることが無い。尚、図１、図２等に示したひし形構造の環状パッキン３は、中心軸に垂直な平面を中心とした面対称形状とはなっていないが、これは施工時に応力が加わったことで面対称形状であったものが弾性変形を行った結果である。 In the above embodiment, in a state where no stress is generated in the annular packing 3, the annular packing 3 is configured as a plane-symmetrical shape centered on a plane perpendicular to the central axis as shown in FIG. Therefore, during the construction, there is no possibility that the annular packing 3 is inserted in the wrong direction, that is, a so-called incorrect insertion. The annular packing 3 having a diamond-shaped structure shown in FIGS. 1 and 2 does not have a plane-symmetrical shape centered on a plane perpendicular to the central axis, but this is due to stress applied during construction. The symmetrical shape is the result of elastic deformation.

本発明の実施形態は以上であるが、本発明は上記各実施形態の形状に限られるものではなく、発明の要旨を逸脱しない範囲において、種々の設計変更を加えても良い。例えば、環状パッキン３の形状としては、上面及び下面に断面視凸部３ａがあり、また外径側の端部(外縁３ｂ）が薄肉形状であればよいため、図５乃至図７の図面のように、環状パッキン３を断面視十字形状としても良い。この十字形状であっても、環状パッキン３の上面と下面はそれぞれ断面視凸部３ａを備えるため、上方の凸部３ａは排水栓２の鍔部２ａ下面と、下方の凸部３ａは窪み部１ｂ等槽体１の取付孔１ａ周縁の係止部１ｃと、それぞれ線状に当接するため高い止水性を生じる。また、内径側は排水栓２の円筒部分外径と、外径側は窪み部１ｂの内側面と、それぞれほぼ同径に構成することで、排水栓２及び取付孔１ａと同心円状態となるように位置決めできるため、環状パッキン３が位置ずれを起こして漏水を生じる、という問題が生じない。また、環状パッキン３の内径側端部（内縁３ｃ）及び外径側端部（外縁３ｂ）は薄肉状態であり、外径側端部（外縁３ｂ）では施工完了時に鍔部２ａや窪み部１ｂに干渉しないため、従来例のように段差を生じることなく、意匠的に良好な施工を行うことができる。
また、環状パッキン３の形状として、図８、図９に示したように、環状パッキン３の形状を、上面及び下面に断面視凸部３ａがあり、この凸部３ａを外径側の端部とする断面視略三角形形状としても良い。この略三角形形状であっても、環状パッキン３の上面と下面はそれぞれ断面視凸部３ａを備えるため、上方の凸部３ａは排水栓２の鍔部２ａ下面と、下方の凸部３ａは窪み部１ｂ等槽体１の取付孔１ａ周縁の係止部１ｃと、それぞれ線状に当接するため高い止水性を生じる。
また、鍔部２ａや窪み部１ｂの交差する、鍔部２ａの外縁部分には環状パッキン３が存在しないため、従来例のように段差を生じることなく、意匠的に良好な施工を行うことができる。
また、内径側は排水栓２の円筒部分外径とほぼ同径に構成することで、排水栓２と同心円状態となるように位置決めでき、排水栓２と取付孔１ａが同心円に接続される限り、環状パッキン３が位置ずれを起こして漏水を生じる、という問題が生じない。但し、断面視三角形形状の環状パッキン３には槽体１に対しての位置決めの効果が無いため、図１乃至図４の断面視ひし形形状の環状パッキン３や、図５乃至図７の断面視十字形状の環状パッキン３のほうが、より確実な位置決めを行うことができる。
また、環状パッキン３は、槽体１の底面だけではなく、図１０のように、槽体１の側面であって上縁近傍に設けられる、オーバーフロー口１ｄなどの側面の排水口に用いてもよい。 Although the embodiment of the present invention is described above, the present invention is not limited to the shape of each of the above embodiments, and various design changes may be made without departing from the gist of the invention. For example, the shape of the annular packing 3 may be such that the upper surface and the lower surface have a convex portion 3a in cross section and the end portion (outer edge 3b) on the outer diameter side has a thin wall shape. As described above, the annular packing 3 may have a cross-sectional cross-sectional shape. Even in this cross shape, since the upper surface and the lower surface of the annular packing 3 each have a convex portion 3a in cross section, the upper convex portion 3a is the lower surface of the flange portion 2a of the drain plug 2, and the lower convex portion 3a is a recessed portion. Since it abuts linearly with the locking portion 1c on the periphery of the mounting hole 1a of the tank body 1 such as 1b, high water stopping property is generated. Further, the inner diameter side is configured to have substantially the same diameter as the outer diameter of the cylindrical portion of the drain plug 2, and the outer diameter side is configured to have substantially the same diameter as the inner surface of the recessed portion 1b so that the drain plug 2 and the mounting hole 1a are in a concentric state. Therefore, there is no problem that the annular packing 3 is misaligned and water leakage occurs. Further, the inner diameter side end (inner edge 3c) and the outer diameter side end (outer edge 3b) of the annular packing 3 are in a thin state, and the outer diameter side end (outer edge 3b) has a flange portion 2a and a recessed portion 1b at the completion of construction. Since it does not interfere with the above, it is possible to carry out good design construction without causing a step as in the conventional example.
Further, as the shape of the annular packing 3, as shown in FIGS. 8 and 9, the shape of the annular packing 3 has a cross-sectional convex portion 3a on the upper surface and the lower surface, and the convex portion 3a is the end portion on the outer diameter side. The cross-sectional view may be a substantially triangular shape. Even in this substantially triangular shape, since the upper surface and the lower surface of the annular packing 3 each have a convex portion 3a in cross section, the upper convex portion 3a is the lower surface of the flange portion 2a of the drain plug 2, and the lower convex portion 3a is a recess. Since it abuts linearly with the locking portion 1c on the periphery of the mounting hole 1a of the tank body 1 such as the portion 1b, high water stopping property is generated.
Further, since the annular packing 3 does not exist at the outer edge portion of the flange portion 2a where the flange portion 2a and the recess portion 1b intersect, it is possible to perform good design construction without causing a step as in the conventional example. can.
Further, the inner diameter side can be positioned so as to be concentric with the drain plug 2 by configuring the inner diameter side to be substantially the same as the outer diameter of the cylindrical portion of the drain plug 2, as long as the drain plug 2 and the mounting hole 1a are connected to the concentric circle. , There is no problem that the annular packing 3 is misaligned and water leakage occurs. However, since the annular packing 3 having a triangular shape in cross-sectional view has no positioning effect on the tank body 1, the annular packing 3 having a diamond-shaped cross-sectional view of FIGS. 1 to 4 and the cross-sectional view of FIGS. The cross-shaped annular packing 3 can perform more reliable positioning.
Further, the annular packing 3 may be used not only for the bottom surface of the tank body 1 but also for the drainage port on the side surface of the tank body 1 and the side surface such as the overflow port 1d provided near the upper edge as shown in FIG. good.

１ 槽体
１ａ 取付孔
１ｂ 窪み部
１ｃ 係止部
１ｄ オーバーフロー口
２ 排水栓
２ａ 鍔部
２ｂ 排水部
２ｃ 雄ネジ
３ 環状パッキン
３ａ 凸部
３ｂ 外縁
３ｃ 内縁
３ｄ 薄肉部
４ 板ナット部材
４ａ 雌ネジ 1 Tank body 1a Mounting hole 1b Depression 1c Locking part 1d Overflow port 2 Drain plug 2a Crossguard 2b Drain part 2c Male screw 3 Circular packing 3a Convex part 3b Outer edge 3c Inner edge 3d Thin wall part 4 Plate nut member 4a Female screw

Claims (6)

取付孔を備えた槽体と、
周縁の外側に向かって突出した鍔部を備え、該鍔部が前記取付孔の周縁に係止されることで、前記取付孔に取り付けられる排水栓と、
前記槽体の取付孔の周縁と前記排水栓の鍔部の間に配置され、水密な状態を形成する環状パッキンからなる排水部材において、
前記環状パッキンの断面視において、環状パッキンの中心軸方向の上方と下方となる面に凸部を設け、
前記環状パッキンの外縁の厚みを薄くした薄肉部としたことを特徴とする排水部材。 A tank body with mounting holes and
A drain plug that is attached to the mounting hole by having a crossguard that protrudes toward the outside of the peripheral edge and is locked to the peripheral edge of the mounting hole.
In a drainage member made of an annular packing, which is arranged between the peripheral edge of the mounting hole of the tank body and the collar of the drain plug and forms a watertight state.
In the cross-sectional view of the annular packing, convex portions are provided on the upper and lower surfaces of the annular packing in the central axis direction.
A drainage member characterized by having a thin-walled portion with a thin outer edge of the annular packing. 前記排水部材において、
前記環状パッキンに応力が生じていない状態において、環状パッキンが、中心軸に垂直な平面を中心とした面対称形状としたことを特徴とする請求項１に記載の排水部材。 In the drainage member
The drainage member according to claim 1, wherein the annular packing has a plane-symmetrical shape centered on a plane perpendicular to the central axis in a state where no stress is generated in the annular packing. 前記排水部材において、
前記取付孔の周縁に鍔部を収納する窪み部を設け、
前記環状パッキンの外径が窪み部の内径と略同一であることを特徴とする請求項１又は請求項２に記載の排水部材。 In the drainage member
A recess for accommodating the crossguard is provided on the periphery of the mounting hole.
The drainage member according to claim 1 or 2, wherein the outer diameter of the annular packing is substantially the same as the inner diameter of the recessed portion. 前記排水部材において、
前記環状パッキンの内径が排水栓の外径と略同一である請求項１乃至請求項３のいずれか一つに記載の排水部材。 In the drainage member
The drainage member according to any one of claims 1 to 3, wherein the inner diameter of the annular packing is substantially the same as the outer diameter of the drain plug. 前記環状パッキンにおいて、断面視ひし形形状としたことを特徴とする請求項１乃至請求項４のいずれか一つに記載の排水部材。 The drainage member according to any one of claims 1 to 4, wherein the annular packing has a diamond-shaped cross-sectional view. 前記環状パッキンにおいて、断面視十字形状としたことを特徴とする請求項１乃至請求項４のいずれか一つに記載の排水部材。 The drainage member according to any one of claims 1 to 4, wherein the annular packing has a cross-sectional cross-sectional shape.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138253U (en) * 1974-04-30 1975-11-14
JP2002013175A (en) * 2000-06-28 2002-01-18 Shigeru Co Ltd Drain device for sink
JP2009079386A (en) * 2007-09-25 2009-04-16 Maruichi Kk Connection structure
JP2013241749A (en) * 2012-05-18 2013-12-05 Lixil Corp Drain port metal fitting and method for manufacturing the same
JP2013253424A (en) * 2012-06-07 2013-12-19 Toto Ltd Operation device
JP2019056229A (en) * 2017-09-21 2019-04-11 株式会社日本アルファ Drain plug device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138253U (en) * 1974-04-30 1975-11-14
JP2002013175A (en) * 2000-06-28 2002-01-18 Shigeru Co Ltd Drain device for sink
JP2009079386A (en) * 2007-09-25 2009-04-16 Maruichi Kk Connection structure
JP2013241749A (en) * 2012-05-18 2013-12-05 Lixil Corp Drain port metal fitting and method for manufacturing the same
JP2013253424A (en) * 2012-06-07 2013-12-19 Toto Ltd Operation device
JP2019056229A (en) * 2017-09-21 2019-04-11 株式会社日本アルファ Drain plug device

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