JP2000204625A - Structure of bathtub drain valve - Google Patents
Structure of bathtub drain valveInfo
- Publication number
- JP2000204625A JP2000204625A JP11005373A JP537399A JP2000204625A JP 2000204625 A JP2000204625 A JP 2000204625A JP 11005373 A JP11005373 A JP 11005373A JP 537399 A JP537399 A JP 537399A JP 2000204625 A JP2000204625 A JP 2000204625A
- Authority
- JP
- Japan
- Prior art keywords
- bathtub
- bathtub drain
- drain plug
- cylindrical body
- flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Sink And Installation For Waste Water (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、浴槽に用いられる
浴槽用排水栓の構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub drain plug used for a bathtub.
【０００２】[0002]
【従来の技術】従来、浴室の排水口に接続されて用いら
れる浴槽用排水栓は、筒体の一端には、排水口に係止で
きる様に、フランジ部が筒体に直交して設けられ、筒体
の外面には排水配管に接続できる様にネジが刻まれてい
る。そして浴槽用排水栓のネジ部の外径とネジの端の不
完全ネジ部の外径とは、同一の外径であるのが一般的で
ある。浴槽用排水栓は、排水口に挿入されて、排水管と
はネジ接続される構造となっている。そのネジ接続の際
に、浴槽用排水栓には、管軸方向に外力が作用する。外
力は浴槽用排水栓のフランジ部に曲げ応力として作用
し、曲げ応力はフランジ部と筒体との付け根部分に応力
集中として作用する。2. Description of the Related Art Conventionally, a bathtub drain plug used to be connected to a drain port of a bathroom has a flange portion provided at one end of the cylindrical member at right angles to the cylindrical member so as to be able to be engaged with the drain port. On the outer surface of the cylindrical body, a screw is cut so that it can be connected to a drainage pipe. The outside diameter of the thread portion of the bathtub drain plug and the outside diameter of the incomplete thread portion at the end of the screw are generally the same outside diameter. The bathtub drain plug is configured to be inserted into a drain port and to be screw-connected to a drain pipe. At the time of the screw connection, an external force acts on the bathtub drain plug in the pipe axis direction. The external force acts as a bending stress on the flange portion of the bathtub drain plug, and the bending stress acts as a stress concentration on a root portion between the flange portion and the cylindrical body.
【０００３】図４に示す様に、浴槽用排水栓２０は、筒
体２５の一端にフランジ部２３が設けられている。筒体
とフランジ部２３との付け根部２１は、直交して付け根
部２１は小さな円弧状に交差している。更に、付け根部
２１の外径とネジ部２２の外径とは同一外径になされて
いる。As shown in FIG. 4, a bathtub drain plug 20 is provided with a flange portion 23 at one end of a cylindrical body 25. The root 21 of the cylindrical body and the flange 23 is orthogonal to each other, and the root 21 intersects in a small arc shape. Further, the outer diameter of the root portion 21 and the outer diameter of the screw portion 22 are the same.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、浴槽用
排水栓のフランジ部と筒体との付け根部は、直交して形
成されているので、上記付け根部に生じる応力集中によ
って、フランジ部付け根から浴槽用排水栓が割れると言
った問題がある。その為に、不完全ネジ部より上部を厚
肉化することにより浴槽用排水栓の強度アップを計る必
要がある。However, since the base of the bathtub drain plug and the flange and the base of the tubular body are formed at right angles, the concentration of stress generated at the base causes the bathtub to be separated from the base of the flange. There is a problem that the water drain cock breaks. For this reason, it is necessary to increase the strength of the bathtub drain plug by increasing the thickness of the upper part from the incomplete screw part.
【０００５】又、フランジ部付け根の形状はフランジ部
の円弧の終点がフランジ水平部に違和感なくつながって
いる。しかし、このように付け根部が小さな円弧状の交
差では、浴槽用排水栓を浴槽等の排水口にフランジ部を
係止して、ネジ部にトラップやエルボ等の管継ぎ手をネ
ジ込んで締め付けると、フランジ部には曲げ応力が作用
する。その為に、フランジ部の付け根には応力が集中
し、浴槽用排水栓の付け根部に割れが生じるといった問
題がある。[0005] The shape of the root of the flange portion is such that the end point of the arc of the flange portion is smoothly connected to the horizontal portion of the flange. However, in the case of such an arcuate intersection where the base is small, it is necessary to fix the flange part to the drain port of the bathtub etc. with the drain plug for the bathtub and screw the pipe joint such as trap or elbow into the screw part and tighten it. A bending stress acts on the flange portion. Therefore, there is a problem that stress concentrates on the base of the flange portion, and cracks occur at the base of the bathtub drain plug.
【０００６】本発明は、上記のこのような問題点に着眼
してなされたものであり、その目的は、曲げ応力に強い
浴槽用排水栓の構造を提供するものである。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a structure of a bathtub drain plug which is resistant to bending stress.
【０００７】[0007]
【課題を解決するための手段】請求項１記載の本発明の
浴槽用排水栓の構造においては、筒体の一端部には鍔状
になされたフランジ部が設けられ、該筒体の外周面には
ネジ部が設けられた筒体からなる浴槽用排水栓が、浴槽
排水口に、前記浴槽用排水栓のフランジ部を前記浴槽排
水口の縁部に係止させて固定される浴槽用排水栓の構造
であって、該浴槽用排水栓のフランジ部と筒体外周との
付け根部が、円弧状に隆起して、付け根部の外径がネジ
部の外径より大きくなされているものである。According to a first aspect of the present invention, there is provided a drainage plug for a bathtub, wherein a flange-shaped flange is provided at one end of the cylindrical body, and an outer peripheral surface of the cylindrical body is provided. A bathtub drain plug consisting of a cylinder provided with a threaded portion is fixed to the bathtub drain port by fixing the flange portion of the bathtub drain plug to the edge of the bathtub drain port. A plug structure, wherein a root portion between the flange portion and the outer periphery of the cylindrical body of the bathtub drain plug is raised in an arc shape, and an outer diameter of the root portion is made larger than an outer diameter of the screw portion. is there.
【０００８】請求項２記載の本発明の浴槽用排水栓の構
造においては、上記浴槽用排水栓のフランジ部と筒体外
周との付け根部が、円弧状に隆起して、付け根部のフラ
ンジ部の一部が円弧状に切り欠かれているものである。In the structure of the bathtub drain plug according to the second aspect of the present invention, the root portion between the flange portion of the bathtub drain plug and the outer periphery of the cylindrical body is protruded in an arc shape, and the root flange portion is formed. Are cut out in an arc shape.
【０００９】[0009]
【作用】請求項１記載の本発明の浴槽用排水栓の構造に
おいては、該浴槽用排水栓のフランジ部と筒体外周との
付け根部が、円弧状に隆起して、付け根部の外径がネジ
部の外径より大きくなされているので、浴槽用排水栓の
管軸方向に作用する外力の集中するフランジ部と接する
筒体の付け根部の肉厚を厚くして曲げ強度を上げること
ができる。In the construction of the bathtub drain plug according to the first aspect of the present invention, the root portion between the flange portion and the outer periphery of the cylindrical body of the bathtub drain plug rises in an arc shape, and the outer diameter of the root portion is increased. The outer diameter of the thread is larger than the outer diameter of the thread, so it is possible to increase the thickness of the root of the cylindrical body that comes in contact with the flange where the external force acting in the direction of the pipe axis of the bathtub drainage concentrates and increase the bending strength. it can.
【００１０】請求項２記載の本発明の浴槽用排水栓の構
造においては、上記浴槽用排水栓のフランジ部と筒体外
周との付け根部が、円弧状に隆起して、フランジ部の一
部が付け根部付近で円弧状に切り欠かれているので、応
力の集中する付け根部付近のフランジ部分が円弧状に応
力を分散させて応力集中を回避させることが出来る。In the structure of the bathtub drain plug according to the second aspect of the present invention, a root portion between the flange portion of the bathtub drain plug and the outer periphery of the cylindrical body protrudes in an arc shape, and a part of the flange portion. Is notched in the shape of an arc near the base, so that the flange portion near the base where the stress concentrates disperses the stress in an arc, so that stress concentration can be avoided.
【００１１】[0011]
【発明の実施の形態】以下に本発明の実施の形態を図面
を参照して説明する。図１は、本発明の浴槽用排水栓の
浴槽排水口に取り付け状態を示す断面図、図２は、本発
明の浴槽用排水栓の一実施例を示す断面図、図３は、本
発明の浴槽用排水栓の別の実施例を示す断面図、図４
は、従来の浴槽用排水栓を示す断面図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a state in which a bathtub drain plug of the present invention is attached to a bathtub drain port, FIG. 2 is a cross-sectional view showing one embodiment of a bathtub drain plug of the present invention, and FIG. Sectional drawing which shows another Example of the drain plug for bathtubs, FIG.
FIG. 2 is a sectional view showing a conventional bathtub drain plug.
【００１２】図１に示す様に、浴槽用排水栓１０ａは、
浴槽１７に設けられた浴槽排水口１７ａに嵌め込まれて
いる。浴槽用排水栓１０ａの構造は、内周端が内側に折
り曲げられて縁部１７ｂが形成された浴槽排水口１７ａ
に、浴槽用排水栓１０ａのフランジ部１３の係止面１３
ａを前記浴槽排水口１７ａの縁部１７ｂに係止させる。
一方、管継ぎ手１９のネジ部１９ａを浴槽用排水栓１０
ａのネジ部１２にネジ込んで、浴槽用排水栓１０ａの係
止面１３ａと管継ぎ手１９とで浴槽排水口１７ａの縁部
１７ｂを挟む様にして締め込む構造となっている。管継
ぎ手１９と浴槽排水口１７ａの縁部１７ｂとの間にはパ
ッキン１８が介在されてシール処理されている。As shown in FIG. 1, a bathtub drain plug 10a is
It is fitted into a bathtub drain 17 a provided in the bathtub 17. The structure of the bathtub drain plug 10a is a bathtub drain port 17a having an inner peripheral end bent inward to form an edge 17b.
The locking surface 13 of the flange 13 of the bathtub drain plug 10a
a is locked to the edge 17b of the bathtub drain 17a.
On the other hand, the thread portion 19a of the pipe joint 19 is
The threaded portion 12a is screwed into the threaded portion 12, and is fastened so that the edge 17b of the bathtub drain 17a is sandwiched between the locking surface 13a of the bathtub drain plug 10a and the pipe joint 19. A packing 18 is interposed between the pipe joint 19 and the edge portion 17b of the bathtub drain 17a for sealing.
【００１３】図２に示す様に、本発明の浴槽用排水栓１
０ａは、内部が中空な筒体１５から形成されている。浴
槽用排水栓１０ａは浴槽の排水口１７ａに係止できるよ
うに、筒体１５の一端部には、鍔状になされたフランジ
部１３が設けられている。フランジ部１３は、管軸方向
に作用する曲げ応力に耐えられる厚みとなっている。浴
槽用排水栓１０ａのフランジ部１３と筒体１５との付け
根部１１は、円弧を描く様になされている。そのため
に、筒体１５とフランジ部１３との付け根部１１は肉盛
りされた状態になされている。このように付け根部１１
の筒体１５の外径は、ネジ部１２の外径より大きくなさ
れている。As shown in FIG. 2, the drain plug 1 for a bathtub of the present invention is provided.
0a is formed from a hollow cylindrical body 15 inside. A flange portion 13 having a flange shape is provided at one end of the cylindrical body 15 so that the bathtub drain plug 10a can be locked to the drain port 17a of the bathtub. The flange portion 13 has a thickness that can withstand bending stress acting in the tube axis direction. The root portion 11 between the flange portion 13 and the tubular body 15 of the bathtub drain plug 10a draws an arc. For this purpose, the base portion 11 between the cylindrical body 15 and the flange portion 13 is made to be overlaid. Thus, the base 11
The outer diameter of the cylindrical body 15 is larger than the outer diameter of the screw portion 12.
【００１４】フランジ部１３の一面からなる係止面１３
ａは、浴槽の排水口１７ａの縁部１７ｂに係止できるよ
うになされている。該筒体１５の外周面にはネジ部１２
が設けられて、排水配管を接続する管継ぎ手１９に接続
できるようになされている。浴槽用排水栓１０ａは、管
継ぎ手１９をねじ込んで、フランジ部１３の係止面１３
ａを浴槽１７の排水口１７ａの縁部１７ｂに固定されて
いる。この際にフランジ部１３の付け根部１１には管軸
方向に曲げ応力が掛かることになる。An engaging surface 13 formed of one surface of the flange portion 13
a is adapted to be locked to the edge 17b of the drain port 17a of the bathtub. A screw portion 12 is provided on the outer peripheral surface of the cylindrical body 15.
Is provided so that it can be connected to a pipe joint 19 for connecting a drainage pipe. The bathtub drain plug 10 a is screwed into the pipe joint 19 to lock the locking surface 13 of the flange portion 13.
a is fixed to the edge 17b of the drain port 17a of the bathtub 17. At this time, bending stress is applied to the root portion 11 of the flange portion 13 in the tube axis direction.
【００１５】図３に示す様に、浴槽用排水栓１０ｂのフ
ランジ部１３には円弧状に切り欠かれた切り欠き部１４
が設けられている。切り欠き部１４は、筒体１５とフラ
ンジ部１３との付け根部１１が円弧形状になされ、円弧
の延長に設けられている。フランジ部１３と筒体１５と
の付け根部１１に設けられた円弧状の切り欠き部１４に
よって、付け根部１１に掛かる応力を円弧状の周辺に分
散させることができる。このようにして、付け根部１１
に掛かる応力集中を回避して浴槽用排水栓１０ｂの曲げ
強度を増すことができる。As shown in FIG. 3, the flange portion 13 of the bathtub drain plug 10b has a cutout portion 14 cut out in an arc shape.
Is provided. The notch 14 has an arc shape at the base 11 of the cylindrical body 15 and the flange portion 13 and is provided as an extension of the arc. The arc-shaped notch 14 provided at the base 11 of the flange 13 and the cylindrical body 15 allows the stress applied to the base 11 to be dispersed around the arc. In this manner, the base 11
, The bending strength of the bathtub drain plug 10b can be increased.
【００１６】浴槽用排水栓１０ａ、１０ｂの材料は、Ａ
ＢＳからなる合成樹脂で筒体１５とフランジ部１３とは
一体成形で形成されている。浴槽用排水栓１０ａに用い
られる材料は、その他耐熱性の合成樹脂でも良い。The material of the bathtub drain plugs 10a and 10b is A
The cylindrical body 15 and the flange 13 are formed of a synthetic resin made of BS by integral molding. The material used for the bathtub drain plug 10a may be another heat-resistant synthetic resin.
【００１７】上記のように、浴槽用排水栓１０ａの構造
においては、浴槽用排水栓１０ａのフランジ部１３と筒
体１５外周との付け根部１１が、円弧状に隆起して、付
け根部１１の外径がネジ部１２の外径より大きくなされ
ているので、浴槽用排水栓１０ａの管軸方向に作用する
外力の集中するフランジ部１３と接する筒体１５の付け
根部の肉厚を厚くして曲げ強度を上げることができる。As described above, in the structure of the bathtub drain plug 10a, the root portion 11 between the flange portion 13 and the outer periphery of the cylindrical body 15 of the bathtub drain plug 10a rises in an arc shape, and the root portion 11 has Since the outer diameter is larger than the outer diameter of the threaded portion 12, the thickness of the root portion of the cylindrical body 15 which is in contact with the flange portion 13 where external force acting in the pipe axis direction of the bathtub drain plug 10a is concentrated is increased. Bending strength can be increased.
【００１８】又、浴槽用排水栓１０ｂの構造において
は、上記浴槽用排水栓１０ｂのフランジ部１３と筒体１
５外周との付け根部１１が、円弧状に隆起して、フラン
ジ部１３の一部が付け根部１１付近で円弧状に切り欠か
れているので、応力の集中する付け根部１１付近のフラ
ンジ部分が円弧状に応力を分散させて応力集中を回避さ
せることが出来る。In the structure of the bathtub drain plug 10b, the flange portion 13 of the bathtub drain plug 10b and the cylinder 1
5 Since the root 11 with the outer periphery protrudes in an arc shape and a part of the flange portion 13 is cut out in an arc shape near the root 11, the flange portion near the root 11 where the stress is concentrated is The stress can be dispersed in an arc shape to avoid stress concentration.
【００１９】[0019]
【発明の効果】請求項１記載の本発明の浴槽用排水栓の
構造においては、該浴槽用排水栓のフランジ部と筒体外
周との付け根部が、円弧状に隆起して、付け根部の外径
がネジ部の外径より大きくなされているので、浴槽用排
水栓の管軸方向に作用する外力の集中するフランジ部と
接する筒体の付け根部の肉厚を厚くして曲げ強度を上げ
ることができる。In the structure of the drain plug for a bathtub according to the present invention, the base of the flange of the bathtub drain and the outer periphery of the cylindrical body are protruded in an arc shape, and the base of the drain plug is formed. Since the outer diameter is larger than the outer diameter of the threaded part, the bending strength is increased by increasing the thickness of the root of the cylindrical body that comes in contact with the flange part where the external force acting in the direction of the pipe axis of the bathtub drain plug concentrates. be able to.
【００２０】請求項２記載の本発明の浴槽用排水栓の構
造においては、上記浴槽用排水栓のフランジ部と筒体外
周との付け根部が、円弧状に隆起して、フランジ部の一
部が付け根部付近で円弧状に切り欠かれているので、応
力の集中する付け根部付近のフランジ部分が円弧状に応
力を分散させて応力集中を回避させることが出来る。In the structure of the bathtub drain plug according to the second aspect of the present invention, a root portion between the flange portion of the bathtub drain plug and the outer periphery of the cylindrical body is protruded in an arc shape and a part of the flange portion. Is notched in the shape of an arc near the base, so that the flange portion near the base where the stress concentrates disperses the stress in an arc, so that stress concentration can be avoided.
【図１】本発明の浴槽用排水栓の浴槽排水口に取り付け
状態を示す断面図である。FIG. 1 is a sectional view showing a state in which a bathtub drain plug according to the present invention is attached to a bathtub drain port.
【図２】本発明の浴槽用排水栓の一実施例を示す断面図
である。FIG. 2 is a sectional view showing one embodiment of a bathtub drain plug of the present invention.
【図３】本発明の浴槽用排水栓の別の実施例を示す断面
図である。FIG. 3 is a cross-sectional view showing another embodiment of the bathtub drain plug of the present invention.
【図４】従来の浴槽用排水栓を示す断面図である。FIG. 4 is a sectional view showing a conventional bathtub drain plug.
１０ａ、１０ｂ 浴槽用排水栓 １１ 付け根部 １２ ネジ部 １３ フランジ部 １３ａ 係止部 １４ 切り欠き部 １５ 筒体 １７ 浴槽 １７ａ 浴槽排水口 １７ｂ 縁部 １８ パッキン １９ 管継ぎ手 １９ａ 管継ぎ手ネジ部 DESCRIPTION OF SYMBOLS 10a, 10b Drain plug for bathtub 11 Root part 12 Thread part 13 Flange part 13a Locking part 14 Notch part 15 Cylindrical body 17 Bathtub 17a Bathtub drainage port 17b Edge 18 Packing 19 Pipe joint 19a Pipe joint thread
Claims (2)
ジ部が設けられ、該筒体の外周面にはネジ部が設けられ
た筒体からなる浴槽用排水栓が、浴槽排水口に、前記浴
槽用排水栓のフランジ部を前記浴槽排水口の縁部に係止
させて固定される浴槽用排水栓の構造であって、 該浴槽用排水栓のフランジ部と筒体外周との付け根部
が、円弧状に隆起して、付け根部の外径がネジ部の外径
より大きくなされていることを特徴とする浴槽用排水栓
の構造。1. A bathtub drainage plug comprising a cylindrical body provided with a flange-shaped flange at one end of the cylindrical body, and a threaded portion provided on an outer peripheral surface of the cylindrical body. A bathtub drain plug structure in which a flange portion of the bathtub drainage plug is locked to an edge of the bathtub drainage port and fixed, wherein the flange portion of the bathtub drainage plug and an outer periphery of a cylindrical body are formed. A structure of a drain plug for a bath tub, wherein a root portion is raised in an arc shape, and an outer diameter of the root portion is larger than an outer diameter of a screw portion.
周との付け根部が、円弧状に隆起して、付け根部のフラ
ンジ部の一部が円弧状に切り欠かれていることを特徴と
する請求項１記載の浴槽用排水栓の構造。2. A root portion between the flange portion of the bathtub drain plug and the outer periphery of the cylindrical body protrudes in an arc shape, and a part of the flange portion of the root portion is cut off in an arc shape. The structure of the bathtub drain plug according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11005373A JP2000204625A (en) | 1999-01-12 | 1999-01-12 | Structure of bathtub drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11005373A JP2000204625A (en) | 1999-01-12 | 1999-01-12 | Structure of bathtub drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000204625A true JP2000204625A (en) | 2000-07-25 |
Family
ID=11609379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11005373A Pending JP2000204625A (en) | 1999-01-12 | 1999-01-12 | Structure of bathtub drain valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000204625A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002301785B2 (en) * | 2001-11-02 | 2008-09-11 | Starlight Security Systems Pty Ltd | Drainage apparatus and method of installing drainage apparatus |
| JP2018091066A (en) * | 2016-12-05 | 2018-06-14 | 丸一株式会社 | Drainage device |
| JP2019203320A (en) * | 2018-05-24 | 2019-11-28 | 丸一株式会社 | Piping structure |
-
1999
- 1999-01-12 JP JP11005373A patent/JP2000204625A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002301785B2 (en) * | 2001-11-02 | 2008-09-11 | Starlight Security Systems Pty Ltd | Drainage apparatus and method of installing drainage apparatus |
| JP2018091066A (en) * | 2016-12-05 | 2018-06-14 | 丸一株式会社 | Drainage device |
| JP2019203320A (en) * | 2018-05-24 | 2019-11-28 | 丸一株式会社 | Piping structure |
| JP7139003B2 (en) | 2018-05-24 | 2022-09-20 | 丸一株式会社 | piping structure |
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