JP6655946B2

JP6655946B2 - Horizontal piping connection structure and toilet facilities

Info

Publication number: JP6655946B2
Application number: JP2015211572A
Authority: JP
Inventors: 嵩正伊奈; 多佳子森; 寿治加藤; 励小島
Original assignee: Lixil Corp
Current assignee: Lixil Corp
Priority date: 2015-10-28
Filing date: 2015-10-28
Publication date: 2020-03-04
Anticipated expiration: 2035-10-28
Also published as: JP2017082903A

Description

本発明は、横配管同士を接続する横配管接続構造、及び、当該横配管接続構造を備えるトイレ設備に関する。 TECHNICAL FIELD The present invention relates to a horizontal pipe connection structure for connecting horizontal pipes, and a toilet facility provided with the horizontal pipe connection structure.

従来より、複数連立するブースを備えたパブリックトイレ設備の各ブースにおいて、トイレ室の壁に取り付けられた壁掛け式の便器装置が知られている（例えば、特許文献１参照）。便器装置は便器本体を有しており、便器本体は、便鉢と、便鉢に排泄された固液混合物としての汚物を便器本体から排出する便器排水路出口とを有している。便器排水路出口の開口部には、蛇腹状を有する蛇腹状管部材の一端部が接続されており、蛇腹状管部材の他端部は、トイレ室の壁の内部において略水平に延びるように配置された排水管（横配管）同士を接続する接続管に接続される。便器装置から蛇腹状管部材及び接続管を通して横配管に流入した汚物は、便器装置から排出される勢いによって、横配管において横配管の上流側から下流側へと流通する。 BACKGROUND ART Conventionally, in each booth of public toilet facilities provided with a plurality of booths, a wall-mounted toilet device attached to a wall of a toilet room is known (for example, see Patent Document 1). The toilet apparatus has a toilet body, and the toilet body has a toilet bowl and an outlet of a toilet drainage channel that discharges, as a solid-liquid mixture, filth excreted in the toilet bowl from the toilet body. One end of a bellows-shaped tubular member having a bellows shape is connected to the opening of the toilet drainage outlet, and the other end of the bellows-like tubular member extends substantially horizontally inside the wall of the toilet room. It is connected to the connecting pipe that connects the arranged drain pipes (horizontal pipes). The filth that has flowed from the toilet device into the horizontal pipe through the bellows-like pipe member and the connection pipe flows from the upstream side to the downstream side of the horizontal pipe in the horizontal pipe due to the force discharged from the toilet device.

特開２０１０−１０１４９５号公報JP 2010-101495 A

横配管は、接続管の内周面に沿って接続管に挿入されることより、接続管に接続される。このため、汚物の流路である、横配管の内周面、及び、接続管の内周面により取り囲まれる空間において、横配管の端部の内周面と接続管の内周面との間に段差が形成されることがある。固体混合物である汚物のうちの固体分や紙は、この段差によって流れが阻害されて引っ掛かり、停滞して流れなくなる。特に、壁掛け便器が、オフィスビルなどの３〜５連立等で並んだトイレブースで使用される場合には、便器装置の使用頻度が戸建の場合よりも多い。このため、横配管の途中で汚物・紙が停滞すると、排水不良（排水管内での詰まり等）の懸念が高まるため、オフィスビル等では、汚物・紙を、階下まで落とす縦管まで、横配管の内部において搬送されることが重要である。 The horizontal pipe is connected to the connection pipe by being inserted into the connection pipe along the inner peripheral surface of the connection pipe. For this reason, in the space surrounded by the inner peripheral surface of the horizontal pipe and the inner peripheral surface of the connecting pipe, which is the flow path of the dirt, the space between the inner peripheral face of the end of the horizontal pipe and the inner peripheral face of the connecting pipe is formed. In some cases, a step is formed. The solid content and paper of the solid mixture, which is a solid mixture, are hindered by the steps and are caught, stagnate and stop flowing. In particular, when the wall-mounted toilet is used in a toilet booth such as an office building, which is arranged in 3 to 5 simultaneous lines, the use frequency of the toilet device is higher than in the case of a detached house. For this reason, if sewage or paper stagnates in the middle of the horizontal piping, there is a greater concern about poor drainage (clogging in the drainage pipe, etc.). It is important that they are conveyed inside.

さらに近年の節水化に伴い水量が減ることにより、汚物・紙を搬送する搬送性能が落ちるため、さらに、汚物・紙が、階下まで落とされる縦管まで搬送されることの重要度が増しており、節水化しても搬送性能を低下しないようにするには、流下する汚物・紙の勢いを殺さずに下流側へ導くことが必要となる。 In addition, since the amount of water decreases with the recent saving of water, the transport performance of filth and paper is reduced, and the importance of the filth and paper being transported to the vertical pipe dropped downstairs is increasing. In order to prevent the conveyance performance from lowering even when water is conserved, it is necessary to guide the water to the downstream side without killing the flow of dirt and paper.

本発明は、横配管の端部の内周面と接続管の内周面との間の段差に汚物等が引っ掛かりにくい、横配管接続構造、及び、トイレ設備を提供することを目的とする。 An object of the present invention is to provide a horizontal pipe connection structure and a toilet facility in which dirt and the like are less likely to be caught on a step between an inner peripheral surface of an end portion of the horizontal pipe and an inner peripheral surface of the connection pipe.

上記目的を達成するため本発明は、一の横配管（例えば、後述の上流側の横配管２００−１）と他の横配管（例えば、後述の下流側の横配管２００−２）とを接続し、前記一の横配管から流通する固液混合物を前記他の横配管へ流通する接続管（例えば、後述の接続管５０）を備え、前記接続管は、中間筒部（例えば、後述の中間筒部５３）を有する筒状部（例えば、後述の筒状部５１）を備え、前記筒状部の一端部は、前記筒状部の内周面に沿って前記一の横配管の端部を挿入可能に、前記筒状部の一端部近傍の部分の内径に対して拡径した内径を有する内周面大径部（例えば、後述の一端部の内周面大径部５１１）を有し、前記筒状部の他端部は、前記筒状部の内周面に沿って前記他の横配管の端部を挿入可能に、前記筒状部の他端部近傍の部分の内径に対して拡径した内径を有する内周面大径部（例えば、後述の他端部の内周面大径部５２１）を有し、前記筒状部の一端部の内周面大径部と他端部の内周面大径部とは、前記中間筒部により接続され、前記筒状部の一端部側の前記中間筒部の一端部の内径は、前記筒状部の他端部側の前記中間筒部の他端部の内径よりも大きく、前記中間筒部の一端部の内周面と、前記筒状部の一端部の前記内周面大径部の内周面とは、一端部側段部（例えば、後述の一端部側段部５０１）を形成し、一端部側段部における段差（例えば、後述の高さの差の値Ｈ１）は、所定の値（例えば、後述の厚さＴ１）未満であり、前記中間筒部の他端部の内周面と、前記筒状部の他端部の前記内周面大径部の内周面とは、他端部側段部（例えば、後述の他端部側段部５０２）を形成し、他端部側段部における段差（例えば、後述の高さの差の値Ｈ２）は、所定の値を超える、横配管接続構造を提供する。 In order to achieve the above object, the present invention connects one horizontal pipe (for example, an upstream horizontal pipe 200-1 described later) to another horizontal pipe (for example, a downstream horizontal pipe 200-2 described later). A connection pipe (for example, a connection pipe 50 described later) for flowing the solid-liquid mixture flowing from the one horizontal pipe to the other horizontal pipe, and the connection pipe is provided with an intermediate cylindrical portion (for example, an intermediate pipe described later). A tubular portion (for example, a tubular portion 51 to be described later) having a tubular portion 53), and one end of the tubular portion is connected to an end of the one horizontal pipe along an inner peripheral surface of the tubular portion. And a large-diameter inner peripheral surface portion (for example, a large-diameter inner peripheral surface portion 511 at one end portion to be described later) having an inner diameter that is larger than an inner diameter of a portion near one end of the cylindrical portion. The other end of the tubular portion is located near the other end of the tubular portion so that an end of the other horizontal pipe can be inserted along the inner peripheral surface of the tubular portion. The inner peripheral surface has a large diameter portion (for example, an inner peripheral surface large diameter portion 521 at the other end, which will be described later) having an inner diameter that is larger than the inner diameter of the portion. The large-diameter portion of the surface and the large-diameter portion of the inner peripheral surface at the other end are connected by the intermediate cylindrical portion, and the inside diameter of one end of the intermediate cylindrical portion on one end side of the cylindrical portion is the cylindrical portion. The inner peripheral surface of one end of the intermediate cylindrical portion is larger than the inner diameter of the other end of the intermediate cylindrical portion on the other end side, and the inner peripheral surface of the inner peripheral surface large-diameter portion at one end of the cylindrical portion. The peripheral surface forms one end side step (for example, one end side step 501 to be described later), and a step (for example, a height difference value H1 to be described later) in the one end side step has a predetermined value. Value (for example, a thickness T1 described later), and the inner peripheral surface of the other end of the intermediate cylindrical portion and the inner peripheral surface of the inner peripheral surface large diameter portion of the other end of the cylindrical portion are , The other end side step (for example, End side stepped portion 502) is formed, step (e.g., at the other end side step, the value H2 of the height difference will be described later) is greater than a predetermined value, to provide a lateral pipe connection structure.

また、前記筒状部の一端部の内周面大径部の内径（例えば、後述の内径Ｄ１２）の値と、前記筒状部の他端部の内周面大径部の内径（例えば、後述の内径Ｄ２２）の値とは、同一であることが好ましい。 Further, the inner diameter of the large diameter portion of the inner peripheral surface at one end of the cylindrical portion (for example, an inner diameter D12 described later) and the inner diameter of the large diameter portion of the inner peripheral surface at the other end of the cylindrical portion (for example, The value of the inner diameter D22) described later is preferably the same.

また、前記中間筒部の内周面は、前記中間筒部の一端部から、前記中間筒部の他端部へ至るまで、一定の割合で縮径していることが好ましい。また、前記接続管は、一端部が前記中間筒部の側面に接続され、他端部から固液混合物が流入して固液混合物を前記筒状部へ流通するガイド部（例えば、後述のガイド部５５）を有し、前記ガイド部の一端部は、前記一の横配管及び他の横配管において流通する固液混合物の流通方向において、前記他端部側段部まで延びていることが好ましい。 Further, it is preferable that the inner peripheral surface of the intermediate cylindrical portion is reduced in diameter at a constant rate from one end of the intermediate cylindrical portion to the other end of the intermediate cylindrical portion. In addition, the connecting pipe has one end connected to the side surface of the intermediate cylindrical portion, and a guide portion (for example, a guide described later) through which the solid-liquid mixture flows in from the other end and flows the solid-liquid mixture to the cylindrical portion. Part 55), and one end of the guide part preferably extends to the step on the other end side in the flow direction of the solid-liquid mixture flowing in the one horizontal pipe and the other horizontal pipe. .

また、本発明は、上記いずれかに記載の横配管接続構造を備え、前記接続管は、便器装置（例えば、後述の便器装置１００）に接続され、前記便器装置から前記接続管へ固液混合物が流入し、前記横配管は、複数の前記便器装置にそれぞれ接続された接続管同士を連結し、前記横配管は、複数の前記横配管の一端部から他端部に向って傾斜して配置されているトイレ設備（例えば、後述のパブリックトイレ設備１）を提供する。 Further, the present invention includes the horizontal pipe connection structure according to any one of the above, wherein the connection pipe is connected to a toilet device (for example, a toilet device 100 described later), and the solid-liquid mixture is supplied from the toilet device to the connection pipe. Flows in, the horizontal pipes connect the connection pipes respectively connected to the plurality of toilet devices, and the horizontal pipes are arranged inclined from one end to the other end of the multiple horizontal pipes. Provided toilet facilities (for example, public toilet facilities 1 described later).

本発明によれば、横配管の端部の内周面と接続管の内周面との間の段差に汚物等が引っ掛かりにくい、横配管接続構造、及び、トイレ設備を提供することができる。 Advantageous Effects of Invention According to the present invention, it is possible to provide a horizontal pipe connection structure and a toilet facility in which dirt and the like are hardly caught on a step between an inner peripheral surface of an end portion of the horizontal pipe and an inner peripheral surface of the connection pipe.

本発明の一実施形態に係る、パブリックトイレ設備１を示す概略図である。It is a schematic diagram showing public toilet equipment 1 concerning one embodiment of the present invention. 本発明の一実施形態に係る、器具としての便器装置１００と横配管２００との接続構造を示す斜視図である。1 is a perspective view showing a connection structure between a toilet device 100 as an instrument and a horizontal pipe 200 according to an embodiment of the present invention. 本発明の一実施形態に係る、排水管接続構造を構成する接続管５０及び蛇腹状管部材７０と、を示す斜視図である。It is a perspective view showing connection pipe 50 and accordion-like pipe member 70 which constitute drainage pipe connection structure concerning one embodiment of the present invention. 本発明の一実施形態に係る、排水管接続構造を構成する接続管５０及び蛇腹状管部材７０と、を示す側面図である。It is a side view showing connection pipe 50 and accordion-like pipe member 70 which constitute drainage pipe connection structure concerning one embodiment of the present invention. 本発明の一実施形態に係る、排水管接続構造を構成する接続管５０及び蛇腹状管部材７０と、を示す正面図である。It is a front view showing connection pipe 50 and accordion-like pipe member 70 which constitute drainage pipe connection structure concerning one embodiment of the present invention. 本発明の一実施形態に係る、排水管接続構造を構成する接続管５０及び蛇腹状管部材７０と、を示す平面図である。It is a top view showing connection pipe 50 and accordion-like pipe member 70 which constitute drainage pipe connection structure concerning one embodiment of the present invention. 本発明の一実施形態に係る、排水管接続構造を構成する接続管５０によって一の横配管２００−１と他の横配管２００−２とが接続されている様子を示す断面図である。It is sectional drawing which shows the mode that one horizontal pipe 200-1 and another horizontal pipe 200-2 are connected by the connection pipe 50 which comprises the drainage pipe connection structure which concerns on one Embodiment of this invention. 本発明の一実施形態に係る、排水管接続構造を構成する接続管５０を示す斜視図である。It is a perspective view showing connection pipe 50 which constitutes a drainage pipe connection structure concerning one embodiment of the present invention.

以下、本発明の一実施形態について、図１〜図８を参照しながら説明する。なお、実施形態においては、接続管５０の筒状部５１からガイド部５５へと向う方向（図３の上方向）を上方向と定義し、その反対の方向を下方向と定義し、これらを左右方向と定義して説明する。 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In the embodiment, the direction from the tubular portion 51 of the connecting pipe 50 to the guide portion 55 (upward in FIG. 3) is defined as an upward direction, and the opposite direction is defined as a downward direction. A description will be given by defining it as the left-right direction.

接続構造によって横配管２００に接続される器具は、便器装置１００であり、便器装置１００は、図１に示すように、複数連立するブース１−１、１−２、１−３を備えたパブリックトイレ設備１の各ブース１−１、１−２、１−３に１つずつ配置された壁掛け式の便器装置である。 The appliance connected to the horizontal piping 200 by the connection structure is the toilet apparatus 100. As shown in FIG. 1, the toilet apparatus 100 includes a public having a plurality of booths 1-1, 1-2, and 1-3. This is a wall-mounted toilet device that is arranged in each booth 1-1, 1-2, 1-3 of the toilet facility 1.

図２に示すように、便器装置１００は、便器本体１０と、便座（図示せず）と、便蓋（図示せず）と、を備える。便座（図示せず）及び便蓋（図示せず）は、便器本体１０の上部に配置され、便器本体１０に対して開閉可能に取り付けられる。なお、便座及び便蓋については、便宜上図示を省略している。 As shown in FIG. 2, the toilet apparatus 100 includes a toilet body 10, a toilet seat (not shown), and a toilet lid (not shown). A toilet seat (not shown) and a toilet lid (not shown) are arranged on the upper part of the toilet main body 10 and attached to the toilet main body 10 so as to be openable and closable. The illustration of the toilet seat and the toilet lid is omitted for convenience.

便器本体１０は、トイレ室の壁１０１１に取り付けられている。便器本体１０は、衛生陶器により形成される。便器本体１０は、図２に示すように、便鉢１１と、吐水口としての第１吐水口（図示せず）と、第２吐水口（図示せず）と、洗浄水導水路（図示せず）と、を有する。洗浄水導水路（図示せず）は、洗浄水を、第１吐水口（図示せず）及び第２吐水口（図示せず）に向けて流通させる。第１吐水口（図示せず）及び第２吐水口（図示せず）は、洗浄水導水路（図示せず）を通して流通された洗浄水を、便鉢１１の内部に吐出する。そして、洗浄水は、便器排水路入口（図示せず）及び便器排水路出口１２１を介して便器装置１００の外部に排出される。 The toilet body 10 is attached to a wall 1011 of a toilet room. The toilet body 10 is formed of sanitary ware. As shown in FIG. 2, the toilet body 10 includes a toilet bowl 11, a first water outlet (not shown) as a water outlet, a second water outlet (not shown), and a flush water conduit (not shown). )). The washing water conduit (not shown) allows the washing water to flow toward the first water outlet (not shown) and the second water outlet (not shown). The first water outlet (not shown) and the second water outlet (not shown) discharge flush water circulated through the flush water conduit (not shown) into the toilet bowl 11. Then, the washing water is discharged to the outside of the toilet device 100 via the toilet drainage channel inlet (not shown) and the toilet drainage channel outlet 121.

本実施形態の接続構造によって便器装置１００に接続される横配管２００は、複数の横配管２００同士が、接続構造を構成する接続管５０により互いに連結され接続された状態とされて、トイレ室の壁１０１１の裏側において、複数連立するブース１−１、１−２、１−３の全てに渡るように、即ち、複数連立するブース１−１、１−２、１−３の一端のブース１−１から他端のブース１−３に至るまで、配置されている。換言すれば、横配管２００は、複数の便器装置１００にそれぞれ接続された接続管５０同士を連結する。 The horizontal pipe 200 connected to the toilet device 100 by the connection structure of the present embodiment is configured such that the plurality of horizontal pipes 200 are connected and connected to each other by the connection pipe 50 forming the connection structure, and On the back side of the wall 1011, the booth 1 at one end of the multiple booths 1-1, 1-2, and 1-3 extends across all of the multiple booths 1-1, 1-2, and 1-3. -1 to the booth 1-3 at the other end. In other words, the horizontal pipe 200 connects the connection pipes 50 connected to the plurality of toilet devices 100, respectively.

横配管２００は、一端側から他端側に向って傾斜して配置されている。このため、接続管５０により互いに接続された横配管２００は、全体として、複数連立するブース１−１、１−２、１−３の一端のブース１−１から他端のブース１−３に至るまで、１／１００程度の勾配で傾斜して配置されている。接続管５０により互いに接続された横配管２００において、傾斜の上端部は、横配管２００を流通する固液混合物としての汚物の流通方向Ａ（以下「流通方向Ａ」と言う）における上流端であり、傾斜の下端部は、流通方向Ａにおける下流端である。下流端は、縦配管３００（図１参照）に接続されており、横配管２００を流通した汚物は、横配管２００の下流端から縦配管３００に流入する。 The horizontal piping 200 is arranged to be inclined from one end to the other end. For this reason, the horizontal pipes 200 connected to each other by the connection pipe 50 are generally connected from the booth 1-1 at one end of the plurality of booths 1-1, 1-2, and 1-3 to the booth 1-3 at the other end. Until that point, they are arranged at an inclination of about 1/100. In the horizontal pipes 200 connected to each other by the connection pipe 50, the upper end of the slope is the upstream end in the flow direction A (hereinafter, referred to as “flow direction A”) of the filth as the solid-liquid mixture flowing through the horizontal pipe 200. The lower end of the slope is the downstream end in the flow direction A. The downstream end is connected to the vertical pipe 300 (see FIG. 1), and the dirt flowing through the horizontal pipe 200 flows into the vertical pipe 300 from the downstream end of the horizontal pipe 200.

図２に示すように、排水管接続構造は、接続管５０と蛇腹状管部材７０とを備えており、横配管接続構造は、接続管５０を備えている。接続管５０は、一の横配管としての流通方向Ａにおける上流側の横配管２００−１と、他の横配管としての流通方向Ａにおける下流側の横配管２００−２とを接続し、上流側の横配管２００−１から流通する固液混合物を下流側の横配管２００−２へ流通する。 As shown in FIG. 2, the drain pipe connection structure includes a connection pipe 50 and a bellows-shaped pipe member 70, and the horizontal pipe connection structure includes the connection pipe 50. The connection pipe 50 connects the upstream horizontal pipe 200-1 in the flow direction A as one horizontal pipe and the downstream horizontal pipe 200-2 in the flow direction A as another horizontal pipe. The solid-liquid mixture flowing from the horizontal pipe 200-1 flows to the horizontal pipe 200-2 on the downstream side.

接続管５０は、一般に「チーズ」と呼ばれており、筒状部５１と、ガイド部５５とを有し、ポリ塩化ビニルにより一体成形されて構成されている。筒状部５１は、円筒形状を有している。図３、図７等に示すように、筒状部５１の一端部及び他端部は、それぞれ内周面大径部５１１、５２１を有しており、筒状部５１の一端部の内周面大径部５１１と他端部の内周面大径部５２１とは、中間筒部５３により接続されている。筒状部５１の一端部の内周面大径部５１１は、筒状部５１の一端部近傍の部分の内径Ｄ１１、即ち、内周面大径部５１１に接続されている中間筒部５３の一端部の内径Ｄ１１に対して拡径した内径Ｄ１２を有している。筒状部５１の他端部の内周面大径部５２１は、筒状部５１の他端部近傍の部分の内径Ｄ２１、即ち、内周面大径部５２１に接続されている中間筒部５３の他端部の内径Ｄ２１に対して拡径した内径Ｄ２２を有している。内径Ｄ１２の値と内径Ｄ２２の値とは、同一である。中間筒部５３の軸方向における長さは、１１３ｍｍ程度であり、中間筒部５３の一端部の内径Ｄ１１は、１０５ｍｍ程度であり、中間筒部５３の他端部の内径Ｄ２１は、９９ｍｍ程度である。 The connection tube 50 is generally called “cheese”, has a tubular portion 51 and a guide portion 55, and is integrally formed of polyvinyl chloride. The tubular portion 51 has a cylindrical shape. As shown in FIG. 3, FIG. 7, etc., one end and the other end of the tubular portion 51 have inner peripheral surface large diameter portions 511 and 521, respectively. The surface large diameter portion 511 and the inner peripheral surface large diameter portion 521 at the other end are connected by an intermediate cylindrical portion 53. The inner peripheral large-diameter portion 511 at one end of the cylindrical portion 51 is the inner diameter D11 of the portion near the one end of the cylindrical portion 51, that is, the intermediate cylindrical portion 53 connected to the inner peripheral large-diameter portion 511. It has an inner diameter D12 which is larger than the inner diameter D11 at one end. The inner peripheral surface large diameter portion 521 at the other end of the cylindrical portion 51 is the inner diameter D21 of the portion near the other end of the cylindrical portion 51, that is, the intermediate cylindrical portion connected to the inner peripheral surface large diameter portion 521. 53 has an inner diameter D22 which is larger than the inner diameter D21 of the other end. The value of the inner diameter D12 and the value of the inner diameter D22 are the same. The length in the axial direction of the intermediate cylinder 53 is about 113 mm, the inner diameter D11 of one end of the intermediate cylinder 53 is about 105 mm, and the inner diameter D21 of the other end of the intermediate cylinder 53 is about 99 mm. is there.

図２、図７に示すように、筒状部５１の一端部の内周面大径部５１１には、筒状部５１の内周面に沿って一の横配管としての、流通方向Ａにおける上流側の横配管２００−１の端部を挿入可能である。筒状部５１の他端部の内周面大径部５２１には、筒状部５１の内周面に沿って他の横配管としての、流通方向Ａにおける下流側の横配管２００−２の端部を挿入可能である。 As shown in FIGS. 2 and 7, the large diameter portion 511 on the inner peripheral surface at one end of the cylindrical portion 51 is formed as one horizontal pipe along the inner peripheral surface of the cylindrical portion 51 in the flow direction A. The end of the upstream horizontal pipe 200-1 can be inserted. In the large-diameter portion 521 on the inner peripheral surface at the other end of the cylindrical portion 51, the other lateral piping along the inner peripheral surface of the cylindrical portion 51 is provided with the horizontal piping 200-2 on the downstream side in the flow direction A. The end can be inserted.

前述のように、内周面大径部５１１、５２１は、内周面大径部５１１に接続されている中間筒部５３の一端部の内径Ｄ１１、内周面大径部５２１に接続されている中間筒部５３の他端部の内径Ｄ２１、に対して、拡径した内径Ｄ１２、Ｄ２２をそれぞれ有している。このため、筒状部５１の一端部の内周面大径部５１１と中間筒部５３の一端部との接続部分は、内径の差による一端部側段部５０１を構成している。同様に、筒状部５１の他端部の内周面大径部５２１と中間筒部５３の他端部との接続部分は、内径の差による他端部側段部５０２を構成している。 As described above, the inner peripheral surface large diameter portions 511 and 521 are connected to the inner diameter D11 and the inner peripheral surface large diameter portion 521 at one end of the intermediate cylindrical portion 53 connected to the inner peripheral surface large diameter portion 511. The inner diameter D12 is larger than the inner diameter D21 of the other end of the intermediate cylindrical portion 53. For this reason, the connecting portion between the large-diameter portion 511 of the inner peripheral surface at one end of the tubular portion 51 and the one end of the intermediate tubular portion 53 constitutes a step 501 on the one end side due to a difference in inner diameter. Similarly, a connection portion between the large-diameter portion 521 on the inner peripheral surface at the other end of the tubular portion 51 and the other end of the intermediate tubular portion 53 constitutes the other-end-side step portion 502 due to the difference in inner diameter. .

中間筒部５３の一端部の内周面の内径Ｄ１１と、筒状部５１の一端部の内周面大径部５１１の内径Ｄ１２との差の１／２の値、即ち、一端部側段部５０１における、中間筒部５３の一端部の内周面と、筒状部の一端部の内周面大径部５１１の内周面と、の高さの差の値Ｈ１は、所定の値未満である。また、中間筒部５３の他端部の内周面の内径Ｄ２１と、筒状部５１の他端部の内周面大径部５２１の内径Ｄ２２との差の１／２の値、即ち、他端部側段部５０２における、中間筒部５３の他端部の内周面と、筒状部５１の他端部の内周面大径部５２１の内周面と、の高さの差の値Ｈ２は、所定の値を超える。ここで、所定の値とは、具体的には、内周面大径部５１１、５２１に挿入される横配管２００の端部の厚さＴ１である（内径とは直径を意味するため、内径の差の１／２の値が内径の差により生ずる一端部側段部５０１、他端部側段部５０２の高さの値Ｈ１、Ｈ２であり、この高さと、横配管２００の端部の厚さＴ１と、を比較する）。例えば、一端部側段部５０１における段差と、他端部側段部５０２における段差との差が３ｍｍ以上あれば、上述の所定の値と、Ｈ１と、Ｈ２との大小関係は担保される。横配管２００としては、「ＪＩＳＫ６７４１」で規定されるポリ塩化ビニルパイプ「ＶＰ１００」が用いられる。 One half of the difference between the inner diameter D11 of the inner peripheral surface at one end of the intermediate cylindrical portion 53 and the inner diameter D12 of the inner peripheral surface large-diameter portion 511 at one end of the cylindrical portion 51, that is, one end side step The value H1 of the height difference between the inner peripheral surface of the one end of the intermediate cylindrical portion 53 and the inner peripheral surface of the large diameter portion 511 of the one end of the cylindrical portion in the portion 501 is a predetermined value. Is less than. Further, a value of １／ of the difference between the inner diameter D21 of the inner peripheral surface at the other end of the intermediate cylindrical portion 53 and the inner diameter D22 of the inner peripheral surface large-diameter portion 521 at the other end of the cylindrical portion 51, that is, Difference in height between the inner peripheral surface of the other end of the intermediate cylindrical portion 53 and the inner peripheral surface of the large diameter portion 521 of the other end of the cylindrical portion 51 in the other end side step portion 502. H2 exceeds a predetermined value. Here, the predetermined value is, specifically, the thickness T1 of the end of the horizontal pipe 200 inserted into the large-diameter portions 511, 521 on the inner peripheral surface. Are the height values H1 and H2 of the one-end-side step 501 and the other-end-side step 502 caused by the difference in inner diameter. Thickness T1). For example, if the difference between the step at the one end side step 501 and the step at the other end side step 502 is 3 mm or more, the magnitude relationship between the above-mentioned predetermined value and H1 and H2 is secured. As the horizontal pipe 200, a polyvinyl chloride pipe "VP100" defined by "JIS K 6741" is used.

図７に示すように、中間筒部５３の一端部（内径Ｄ１１を有する部分）の内周面と中間筒部５３の他端部（内径Ｄ２１を有する部分）の内周面とは、連続的に接続されており、中間筒部５３の内周面は、中間筒部５３の一端部から、中間筒部５３の他端部へ至るまで、一定の割合で縮径している。即ち、中間筒部５３の軸心に沿った断面では、中間筒部５３の内周面は、中間筒部５３の一端部から、中間筒部５３の他端部へ至るまで、一定の割合で縮径するテーパー形状を有している。ここで「連続的に接続」とは、中間筒部５３の一端部の内周面と中間筒部５３の他端部の内周面との間の、中間筒部５３の内周面の部分には、凸部や凹部が形成されて不連続な形状となっておらず、中間筒部５３の軸心に沿った断面で見た場合には、例えば、図７に示すように、一直線状を有していることを意味する。従って、筒状部５１の一端部側の中間筒部５３の一端部の内径Ｄ１１は、筒状部５１の他端部側の中間筒部５３の他端部の内径Ｄ２１よりも大きい。 As shown in FIG. 7, the inner peripheral surface of one end (the portion having the inner diameter D11) of the intermediate cylindrical portion 53 and the inner peripheral surface of the other end (the portion having the inner diameter D21) of the intermediate cylindrical portion 53 are continuous. And the inner peripheral surface of the intermediate cylindrical portion 53 is reduced in diameter at a constant rate from one end of the intermediate cylindrical portion 53 to the other end of the intermediate cylindrical portion 53. That is, in the cross section along the axis of the intermediate cylindrical portion 53, the inner peripheral surface of the intermediate cylindrical portion 53 has a constant ratio from one end of the intermediate cylindrical portion 53 to the other end of the intermediate cylindrical portion 53. It has a tapered shape that reduces the diameter. Here, “continuously connected” means a portion of the inner peripheral surface of the intermediate cylindrical portion 53 between the inner peripheral surface at one end of the intermediate cylindrical portion 53 and the inner peripheral surface at the other end of the intermediate cylindrical portion 53. Is not discontinuous due to the formation of projections and depressions, and when viewed in a cross section along the axis of the intermediate cylindrical portion 53, for example, as shown in FIG. It means that it has. Accordingly, the inner diameter D11 of one end of the intermediate tubular portion 53 at one end of the tubular portion 51 is larger than the inner diameter D21 of the other end of the intermediate tubular portion 53 at the other end of the tubular portion 51.

この構成により、前述のように接続管５０により互いに接続された横配管２００は、全体として流通方向Ａにおける上流側から下流側へ向って下るような勾配を有して傾斜して配置されているが、これに対して中間筒部５３には、この勾配が緩くなるような勾配が設けられている。本実施形態のように、横配管２００の勾配の値が小さい場合には、中間筒部５３において、流通方向Ａにおける下流側から上流側へ向って下るような逆勾配となるが、この場合であっても、逆勾配の値は小さく、また、中間筒部５３は、横配管２００と比較して中間筒部５３の軸方向における長さは短いため、横配管２００における汚物の流れを阻害するには至らない。 With this configuration, the horizontal pipes 200 connected to each other by the connection pipes 50 as described above are arranged so as to have a gradient that descends from the upstream side to the downstream side in the flow direction A as a whole. However, a gradient is provided in the intermediate cylindrical portion 53 so that the gradient is gentle. In the case where the value of the gradient of the horizontal pipe 200 is small as in the present embodiment, the intermediate cylinder 53 has a reverse gradient such that it goes down from the downstream side to the upstream side in the flow direction A. Even if there is, the value of the reverse gradient is small, and the length of the intermediate cylindrical portion 53 in the axial direction of the intermediate cylindrical portion 53 is shorter than that of the horizontal piping 200, so that the flow of dirt in the horizontal piping 200 is obstructed. Does not reach.

図３等に示すように、内周面大径部５１１、５２１の外側面には、目盛り５１３、５２３が形成されている。内周面大径部５１１、５２１の外側面の最上位置に、目盛り５１３、５２３の所定の値を合わせることにより、内周面大径部５１１、５２１を所定の回転角度として、接続管５０に接続される蛇腹状管部材７０の曲り具合を適切にすることができるように構成されている。また、中間筒部５３の側面には、流通方向Ａを示す記載５３５が形成されている。 As shown in FIG. 3 and the like, scales 513 and 523 are formed on the outer surface of the large-diameter portions 511 and 521 on the inner peripheral surface. By adjusting the predetermined values of the scales 513 and 523 to the uppermost position of the outer surfaces of the inner peripheral surface large diameter portions 511 and 521, the inner peripheral surface large diameter portions 511 and 521 are set to a predetermined rotation angle and are connected to the connection pipe 50. The bellows-like tubular member 70 to be connected is configured to be able to appropriately bend. A description 535 indicating the distribution direction A is formed on a side surface of the intermediate cylindrical portion 53.

ガイド部５５は、図７、図８に示すように、筒状部５１の中間筒部５３の側面から、中間筒部５３の外方、且つ、流通方向Ａにおける上流側に斜めに分岐して延びる管状を有しており、筒状部５１の軸心に平行な面で切断されたような形状を有している。従って、ガイド部５５の他端部５５２の開口は、筒状部５１の中間筒部５３の半径方向外方へ向って開口し、長手方向が流通方向Ａに平行な楕円形状を有している。 As shown in FIGS. 7 and 8, the guide portion 55 diagonally branches from the side surface of the intermediate tubular portion 53 of the tubular portion 51 to the outside of the intermediate tubular portion 53 and upstream in the distribution direction A. It has an elongated tubular shape, and has a shape cut like a plane parallel to the axis of the tubular portion 51. Therefore, the opening of the other end portion 552 of the guide portion 55 opens outward in the radial direction of the intermediate tubular portion 53 of the tubular portion 51 and has an elliptical shape whose longitudinal direction is parallel to the flow direction A. .

より詳細には、図７に示すように、ガイド部５５の一端部５５１は、流通方向Ａの下流側において、他端部側段部５０２に至るまで延びている。流通方向Ａの上流側におけるガイド部５５の他端部５５２の開口端縁５５３は、流通方向Ａの上流側における、筒状部５１の一端部の内周面大径部５１１の端縁に至るまで延びている。流通方向Ａの上流側のガイド部５５の側面５５５は、蛇腹状管部材７０の一端開口部７１に流入する汚物の流入方向Ｂ（図７における下方向、以下「流入方向Ｂ」と言う）に対して、流通方向Ａへ汚物の流れを変えるように、流通方向Ａの下流側へ向って傾斜している。これに対して流通方向Ａの下流側のガイド部５５の側面５５６は、ガイド部５５の他端部５５２から流入方向Ｂへ平行に延び、途中から流通方向Ａへ汚物の流れを変えるように、流通方向Ａの下流側へ向って傾斜している。 More specifically, as shown in FIG. 7, the one end 551 of the guide portion 55 extends to the other end side step portion 502 on the downstream side in the flow direction A. The opening edge 553 of the other end portion 552 of the guide portion 55 on the upstream side in the flow direction A reaches the edge of the inner peripheral surface large diameter portion 511 at one end of the cylindrical portion 51 on the upstream side in the flow direction A. Extending to The side surface 555 of the guide portion 55 on the upstream side in the flow direction A is in the inflow direction B (the downward direction in FIG. 7, hereinafter referred to as the “inflow direction B”) of the dirt flowing into the one end opening 71 of the bellows-like tube member 70. On the other hand, it is inclined toward the downstream side in the distribution direction A so as to change the flow of the waste in the distribution direction A. On the other hand, the side surface 556 of the guide portion 55 on the downstream side in the flow direction A extends in parallel from the other end portion 552 of the guide portion 55 in the inflow direction B, and changes the flow of waste in the flow direction A from the middle. It is inclined toward the downstream side in the distribution direction A.

即ち、ガイド部５５の一端部（図７に示すガイド部５５の下端部）は、中間筒部５３の側面に接続され、ガイド部５５の他端部（図７に示すガイド部５５の上端部）は、蛇腹状管部材７０の他端開口部７２が接続され、蛇腹状管部材７０に流入した汚物が、ガイド部５５の他端部からガイド部５５の内部に流入し、ガイド部５５は、汚物を筒状部５１へ流通する。 That is, one end of the guide portion 55 (the lower end of the guide portion 55 shown in FIG. 7) is connected to the side surface of the intermediate cylindrical portion 53, and the other end of the guide portion 55 (the upper end of the guide portion 55 shown in FIG. 7). ), The other end opening 72 of the bellows-like tube member 70 is connected, the dirt flowing into the bellows-like tube member 70 flows into the guide part 55 from the other end of the guide part 55, and the guide part 55 Then, the waste is distributed to the tubular portion 51.

図８に示すように、ガイド部５５の他端部の開口の周縁部には、蛇腹状管部材７０（図７参照）の他端開口部７２が接続されているときに、ガイド部５５の他端部の開口の周縁部から蛇腹状管部材７０の他端開口部７２が外れることを抑制するための滑り止め溝５５７が、ガイド部５５の他端部の開口を一周するように複数形成されている。 As shown in FIG. 8, when the other end opening 72 of the bellows-like tube member 70 (see FIG. 7) is connected to the periphery of the opening at the other end of the guide portion 55, A plurality of non-slip grooves 557 for preventing the other end opening 72 of the bellows-like tube member 70 from coming off the peripheral edge of the opening at the other end are formed so as to go around the opening at the other end of the guide portion 55. Have been.

ガイド部５５の内部空間は、筒状部５１の中間筒部５３の内部空間に連通している。図４に示すように、流通方向Ａにおけるガイド部５５の上流側の外面と、下流側の外面には、リブ５５８、５５９が設けられている。リブ５５８、５５９は、その延長上に筒状部５１の軸心を含む位置関係を有する板状を有しており、ガイド部５５と筒状部５１とを掛け渡すように、ガイド部５５及び筒状部５１と一体成形されて接続されている。 The internal space of the guide portion 55 communicates with the internal space of the intermediate tubular portion 53 of the tubular portion 51. As shown in FIG. 4, ribs 558 and 559 are provided on the outer surface on the upstream side and the outer surface on the downstream side of the guide portion 55 in the flow direction A. Each of the ribs 558 and 559 has a plate shape having a positional relationship including the axis of the tubular portion 51 on an extension thereof, and the guide portions 55 and 55 are provided so as to bridge the guide portion 55 and the tubular portion 51. It is integrally formed with the tubular portion 51 and connected.

図７等に示すように、蛇腹状管部材７０は、一端開口部７１と、他端開口部７２と、蛇腹状を有し一端開口部７１と他端開口部７２とを接続する中間部分７３と、を有しており、ゴムにより一体成形されて構成されている。一端開口部７１は、円環状を有しており、便器装置１００の便器排水路出口１２１（図２参照）に接続されている。他端開口部７２は、楕円環状を有しており、接続管５０のガイド部５５の他端部５５２の開口の周縁部の全体を覆うようにして、ガイド部５５の他端部５５２の開口の周縁部に接続されている。蛇腹状管部材７０は、便器装置１００からの固液混合物としての汚物を接続管５０へ流通する。 As shown in FIG. 7 and the like, the bellows-like tube member 70 has an opening 71 at one end, an opening 72 at the other end, and an intermediate portion 73 having a bellows shape and connecting the opening 71 at the other end and the opening 72 at the other end. And are integrally formed of rubber. The one end opening 71 has an annular shape and is connected to the toilet drain outlet 121 of the toilet device 100 (see FIG. 2). The other end opening 72 has an elliptical ring shape, and covers the entire periphery of the opening of the other end 552 of the guide part 55 of the connection pipe 50 so that the opening of the other end 552 of the guide part 55 is formed. Are connected to the periphery. The bellows-like pipe member 70 circulates the contaminant as the solid-liquid mixture from the toilet device 100 to the connection pipe 50.

より詳細には、一端開口部７１は、一端開口部接続部７１１を有している。一端開口部接続部７１１は、便器装置１００の便器排水路出口１２１に接続可能に構成されており、一端開口部７１の開口端縁７１２からフランジ状に一端開口部７１の略半径方向外方へ広がり、そして更に、一端開口部７１の開口の軸方向へ延びる形状を有している。他端開口部７２は、他端開口部接続部７２１を有している。他端開口部接続部７２１は、接続管５０のガイド部５５の他端部（上端部）に接続可能に構成されており、他端開口部７２の開口端縁７２２からフランジ状に他端開口部７２の略半径方向外方へ広がり、そして更に、他端開口部７２の開口の軸方向へ延びる形状を有している。一端開口部７１の開口は、図６に示すように、流入方向Ｂにおいて（図７参照）、ガイド部５５の一端部寄りの部分の内面（側面５５５）に対向する。 More specifically, the one-end opening 71 has an one-end opening connection part 711. The one-end opening connecting portion 711 is configured to be connectable to the toilet drainage outlet 121 of the toilet device 100, and extends outward from the opening edge 712 of the one-end opening 71 in a flange shape substantially in the radial direction of the one-end opening 71. It has a shape that expands and further extends in the axial direction of the opening of the one end opening 71. The other end opening 72 has an other end opening connection part 721. The other end opening connection portion 721 is configured to be connectable to the other end (upper end) of the guide portion 55 of the connection pipe 50, and is opened in a flange shape from the opening edge 722 of the other end opening 72. It has a shape extending substantially radially outward of the portion 72 and further extending in the axial direction of the opening of the other end opening 72. As shown in FIG. 6, the opening of the one end opening 71 faces the inner surface (side surface 555) of the portion near the one end of the guide portion 55 in the inflow direction B (see FIG. 7).

中間部分７３は、蛇腹部７３１と、傾斜筒部７３５とを有している。蛇腹部７３１は、蛇腹部７３１の軸心方向に直交する方向で切った断面が円形又は楕円形を有する蛇腹状を有している。蛇腹部７３１の下端部は、蛇腹状管部材７０の他端開口部７２の開口端縁７２２に接続されており、蛇腹部７３１の上端部は、傾斜筒部７３５の下端部に接続されている。 The intermediate portion 73 has a bellows portion 731 and an inclined tubular portion 735. The bellows portion 731 has a bellows shape having a circular or elliptical cross section cut in a direction orthogonal to the axial direction of the bellows portion 731. The lower end of the bellows portion 731 is connected to the opening edge 722 of the other end opening 72 of the bellows-like tube member 70, and the upper end of the bellows portion 731 is connected to the lower end of the inclined cylindrical portion 735. .

蛇腹部７３１においては、図４、図７等に示すように、上端部から下端部に向うにつれて、流通方向Ａにおける蛇腹部７３１の上流端部（図７に示す左側の端部）は同一の位置にあるが、流通方向Ａにおける蛇腹部７３１の下流端部は、上端部から下端部に向うにつれて、徐々に流通方向Ａの下流側へ広がる形状を有している。従って、流通方向Ａの上流側における、蛇腹状管部材７０の一端開口部７１の端縁（図７に示す左側の端縁）は、蛇腹状管部材７０の一端開口部７１に流入する固液混合物の流入方向Ｂ（図７に示す下方向）から蛇腹状管部材７０の一端開口部７１を見たときに、流通方向Ａの上流側における、蛇腹状管部材７０の中間部分７３の内方へ突出する蛇腹状管部材７０の中間部分７３の内周面の突出端部（図７に示す中間部分７３の蛇腹部７３１の左側の蛇腹状の内周面のうちの、中間部分７３の内方へ最も突出した部分）、及び、流通方向Ａの上流側における、蛇腹状管部材７０の他端開口部７２の開口端縁７２２（図７に示す左側の開口端縁７２２）に一致する位置関係を有する。 In the bellows portion 731, as shown in FIGS. 4, 7, etc., the upstream end (the left end shown in FIG. 7) of the bellows portion 731 in the flow direction A is the same as going from the upper end to the lower end. Although located at the position, the downstream end of the bellows 731 in the flow direction A has a shape that gradually spreads downstream in the flow direction A from the upper end to the lower end. Therefore, the edge (the left edge shown in FIG. 7) of the one-end opening 71 of the bellows-like tubular member 70 on the upstream side in the flow direction A is solid-liquid flowing into the one-end opening 71 of the bellows-like tubular member 70. When the one end opening 71 of the bellows-like tube member 70 is viewed from the inflow direction B of the mixture (downward direction shown in FIG. 7), the inner side of the intermediate portion 73 of the bellows-like tube member 70 on the upstream side in the flow direction A is seen. The protruding end portion of the inner peripheral surface of the intermediate portion 73 of the bellows-like tube member 70 protruding to the inside (the inner portion 73 of the bellows-like inner peripheral surface on the left side of the bellows portion 731 of the intermediate portion 73 shown in FIG. 7) And a position on the upstream side in the flow direction A, which coincides with the opening edge 722 of the other end opening 72 of the bellows-like pipe member 70 (the left opening edge 722 shown in FIG. 7). Have a relationship.

図５等に示すように、傾斜筒部７３５は、蛇腹部７３１の軸心に対して所定の角度で傾斜する軸心を有する略筒状を有している。従って、図５等に示すように、傾斜筒部７３５の傾斜する方向の側の側面（図５に示す左側の側面）は短く構成され、傾斜筒部７３５の傾斜する方向の側とは反対の側の側面（図５に示す右側の側面）は長く構成されている。長く構成された側面は、部分的に蛇腹状を有している。 As shown in FIG. 5 and the like, the inclined cylinder portion 735 has a substantially cylindrical shape having an axis inclined at a predetermined angle with respect to the axis of the bellows portion 731. Therefore, as shown in FIG. 5 and the like, the side surface (the left side surface shown in FIG. 5) of the inclined cylindrical portion 735 in the inclined direction is configured to be short, and is opposite to the inclined cylindrical portion 735 in the inclined direction. The side surface (the right side surface shown in FIG. 5) is long. The long side surface has a bellows shape partially.

図７等に示すように、蛇腹状管部材７０において、他端開口部７２は一端開口部７１よりも、開口の面積が大きく構成されている。図７に示すように、流通方向Ａの上流側における、蛇腹状管部材７０の一端開口部７１の端縁は、流通方向Ａの上流側における、蛇腹状管部材７０の他端開口部７２が接続される接続管５０の開口部の端縁、即ち、流通方向Ａの上流側におけるガイド部５５の他端部の開口端縁５５３よりも、僅かに流通方向Ａの下流側に位置している。 As shown in FIG. 7 and the like, in the bellows-like tube member 70, the other end opening 72 has a larger opening area than the one end opening 71. As shown in FIG. 7, the end edge of the one end opening 71 of the bellows-like pipe member 70 on the upstream side in the flow direction A is the same as that of the other end opening 72 of the bellows-like tube member 70 on the upstream side in the flow direction A. The edge of the opening of the connection pipe 50 to be connected, that is, the opening edge 553 of the other end of the guide portion 55 on the upstream side in the flow direction A is located slightly downstream in the flow direction A. .

以上の構成を備える本実施形態に係る接続構造を備えるパブリックトイレ設備１における、器具としての便器装置１００からの横配管２００への汚物等の流れについて説明する。
便器装置１００の使用者が便器装置１００を使用し終わると、洗浄水は、洗浄水導水路（図示せず）によって、第１吐水口（図示せず）及び第２吐水口（図示せず）に向けて流通させられ、第１吐水口（図示せず）及び第２吐水口（図示せず）から、便鉢１１の内部に吐出される。そして、洗浄水は、汚物や紙とともに便器排水路入口（図示せず）及び便器排水路出口１２１（図２参照）を介して便器装置１００の外部に排出され、蛇腹状管部材７０の一端開口部７１（図７参照）から蛇腹状管部材７０の内部へ流入する。 In the public toilet facility 1 including the connection structure according to the present embodiment having the above-described configuration, a flow of dirt and the like from the toilet device 100 as an appliance to the horizontal pipe 200 will be described.
When the user of the toilet device 100 finishes using the toilet device 100, the flush water is supplied to the first water outlet (not shown) and the second water outlet (not shown) by the flush water conduit (not shown). And discharged from the first water outlet (not shown) and the second water outlet (not shown) into the toilet bowl 11. Then, the washing water is discharged to the outside of the toilet device 100 through the toilet drain passage inlet (not shown) and the toilet drain passage outlet 121 (see FIG. 2) together with the dirt and paper. From the portion 71 (see FIG. 7), it flows into the inside of the bellows-like tube member 70.

このとき、前述のように、蛇腹状管部材７０の一端開口部７１の端縁は、蛇腹状管部材７０の一端開口部７１に流入する固液混合物の流入方向Ｂ（図７に示す下方向）において、蛇腹状管部材７０の中間部分７３の蛇腹部７３１の内周面、及び、蛇腹状管部材７０の他端開口部７２の開口端縁７２２に一致する位置関係を有するため、蛇腹状管部材７０の一端開口部７１から流入した汚物や紙は、蛇腹部７３１の内周面に直接衝突せずに、蛇腹状管部材７０を流通して通過し、接続管５０のガイド部５５の他端部の開口に流入する。 At this time, as described above, the edge of the one end opening 71 of the bellows-like tube member 70 is in the inflow direction B of the solid-liquid mixture flowing into the one end opening 71 of the bellows-like tube member 70 (the downward direction shown in FIG. 7). ), The inner peripheral surface of the bellows portion 731 of the intermediate portion 73 of the bellows-like tubular member 70 and the opening edge 722 of the other end opening 72 of the bellows-like tubular member 70 have a positional relationship corresponding to the bellows-like shape. The dirt and paper flowing from the one end opening 71 of the pipe member 70 flow through the bellows-like pipe member 70 without directly colliding with the inner peripheral surface of the bellows portion 731, and pass through the guide portion 55 of the connection pipe 50. It flows into the opening at the other end.

ガイド部５５に流入したガイド部５５の側面５５５の内面に衝突することにより、流通方向Ａにおける下流方向へ流れの向きが変えられ、ガイド部５５によって、蛇腹状管部材７０に流入した固液混合物としての洗浄水及び汚物等は、流通方向Ａにおいて蛇腹状管部材７０の他端開口部７２よりも下流側の筒状部５１の部分へ向けて流通し、ガイド部５５の一端部の開口から中間筒部５３へ流入する。この際、ガイド部５５の一端部は、流通方向Ａの下流側において、他端部側段部５０２に至るまで延びているため、ガイド部５５の一端部の開口から中間筒部５３へ流入する洗浄水及び汚物等は、接続管５０の他端部の内周面大径部５２１に接続されて他端部側段部５０２に位置している、流通方向Ａの下流側の横配管２００−２の端部の端縁よりも、流通方向Ａの下流側を狙うように、図７の斜め右下方向へ向って流入する。そして、横配管２００−２へ流入した汚物は、横配管２００−２において流通方向Ａの下流側へ流通し、横配管２００の最下流端部に接続されている縦配管３００へ流通する。 By colliding with the inner surface of the side surface 555 of the guide portion 55 that has flowed into the guide portion 55, the direction of flow is changed in the downstream direction in the flow direction A, and the solid-liquid mixture that has flowed into the bellows-like pipe member 70 by the guide portion 55. Washing water and dirt and the like flow in the flow direction A toward the portion of the tubular portion 51 downstream of the other end opening 72 of the bellows-like tube member 70, and from the opening at one end of the guide portion 55. It flows into the intermediate cylinder 53. At this time, since one end of the guide portion 55 extends to the other end side step portion 502 on the downstream side in the flow direction A, the one end portion of the guide portion 55 flows into the intermediate cylindrical portion 53 from the opening at one end portion of the guide portion 55. The washing water, dirt, and the like are connected to the large-diameter portion 521 on the inner peripheral surface at the other end of the connection pipe 50 and are located at the other end side step portion 502. 7 so as to flow toward the downstream side in the distribution direction A from the edge of the end portion 2 in a diagonally lower right direction in FIG. The filth that has flowed into the horizontal pipe 200-2 flows downstream in the flow direction A in the horizontal pipe 200-2, and flows to the vertical pipe 300 connected to the most downstream end of the horizontal pipe 200.

接続管５０及び横配管２００において汚物等が流通する際には、汚物等は、一端部側段部５０１と他端部側段部５０２とを通過する。この際、一端部側段部５０１においては、流通方向Ａの上流側の横配管２００−１の端部の内周面の内径Ｄ１３は、流通方向Ａの下流側に位置する筒状部５１の内周面（中間筒部５３の内周面）の内径Ｄ１１よりも小さく、流通方向Ａの上流側の横配管２００−１の端部の内周面は、中間筒部５３の端部の半径方向内方に位置している。 When dirt and the like flow through the connection pipe 50 and the horizontal pipe 200, the dirt and the like pass through the one end side step 501 and the other end side step 502. At this time, in the one end side step part 501, the inner diameter D13 of the inner peripheral surface of the end part of the horizontal pipe 200-1 on the upstream side in the flow direction A is the same as the inner diameter D13 of the cylindrical part 51 located on the downstream side in the flow direction A. The inner circumferential surface at the end of the horizontal pipe 200-1 on the upstream side in the flow direction A is smaller than the inner diameter D11 of the inner circumferential surface (the inner circumferential surface of the intermediate cylindrical portion 53). It is located inward in the direction.

また、他端部側段部５０２においては、下流側の横配管２００−２に対して、流通方向Ａの上流側に位置する筒状部５１の内周面の内径Ｄ２１の方が、流通方向Ａの下流側の横配管２００−２の端部の内周面の内径Ｄ１３よりも小さく、横配管２００−２の半径方向内方に位置している。このため、筒状部５１を流れる汚物や紙等は、一端部側段部５０１、他端部側段部５０２において引っ掛かりにくく、横配管２００を通して縦配管３００へ滞りにくく流通しやすい。 Further, in the other end side step portion 502, the inner diameter D21 of the inner peripheral surface of the cylindrical portion 51 located on the upstream side in the flow direction A is larger than the inner diameter D21 in the flow direction with respect to the downstream horizontal pipe 200-2. It is smaller than the inner diameter D13 of the inner peripheral surface at the end of the horizontal pipe 200-2 on the downstream side of A, and is located radially inward of the horizontal pipe 200-2. For this reason, dirt, paper, and the like flowing through the cylindrical portion 51 are less likely to be caught at the one end side step portion 501 and the other end side step portion 502, and are less likely to stagnate into the vertical pipe 300 through the horizontal pipe 200 and flow easily.

上記構成の実施形態による、排水管接続構造、及び、トイレ設備によれば、以下のような効果を得ることができる。
排水管接続構造は、一の横配管２００としての上流側の横配管２００−１と他の横配管２００としての下流側の横配管２００−２とを接続し、上流側の横配管２００−１から流通する固液混合物を下流側の横配管２００−２へ流通する接続管５０と、一端開口部７１と他端開口部７２と蛇腹状を有し一端開口部７１と他端開口部７２とを接続する中間部分７３とを有し、一端開口部７１は便器装置１００に接続され、他端開口部７２は接続管５０に接続され、便器装置１００からの固液混合物を接続管５０へ流通する蛇腹状管部材７０と、を備える。
一の横配管２００及び他の横配管２００において流通する固液混合物の流通方向Ａの上流側における、蛇腹状管部材７０の一端開口部７１の開口端縁７１２は、流通方向Ａの上流側における、蛇腹状管部材７０の他端開口部７２が接続される接続管５０の開口部の開口端縁５５３よりも、流通方向Ａの下流側に位置する。 According to the drain pipe connection structure and the toilet equipment according to the embodiment of the above configuration, the following effects can be obtained.
The drain pipe connection structure connects an upstream horizontal pipe 200-1 as one horizontal pipe 200 and a downstream horizontal pipe 200-2 as another horizontal pipe 200, and forms an upstream horizontal pipe 200-1. The connecting pipe 50 for flowing the solid-liquid mixture flowing from the downstream side to the horizontal pipe 200-2, the one end opening 71, the other end opening 72, the bellows-like shape, and the one end opening 71 and the other end opening 72 The opening 71 is connected to the toilet device 100, the other end 72 is connected to the connecting pipe 50, and the solid-liquid mixture from the toilet device 100 flows to the connecting pipe 50. And a bellows-like tube member 70 that performs the operation.
The opening edge 712 of the one end opening 71 of the bellows-like pipe member 70 on the upstream side in the flow direction A of the solid-liquid mixture flowing in one horizontal pipe 200 and the other horizontal pipe 200 is located on the upstream side in the flow direction A. The other end opening 72 of the bellows-like tube member 70 is located downstream of the opening edge 553 of the opening of the connection pipe 50 to which the connecting pipe 50 is connected.

この構成により、蛇腹状管部材７０に汚物等が流入する際に、蛇腹状管部材７０の蛇腹状の内周面に汚物等が衝突しにくく、水の乱流の発生を抑えることができ、節水化されて汚物等を流す水の量が減少した場合であっても、汚物の流速が低下することを抑えることができる。このため、流下する汚物等の勢いを維持して下流側へ導くことができる。 With this configuration, when dirt or the like flows into the bellows-like tubular member 70, the dirt or the like hardly collides with the bellows-like inner peripheral surface of the bellows-like tubular member 70, and the generation of turbulent water can be suppressed. Even when the amount of water flowing through the waste is reduced due to water saving, it is possible to suppress a decrease in the flow rate of the waste. For this reason, it is possible to maintain the momentum of the falling wastes and the like and guide them to the downstream side.

また、流通方向Ａの上流側における、蛇腹状管部材７０の一端開口部７１の端縁は、蛇腹状管部材７０の一端開口部７１に流入する固液混合物の流入方向Ｂから蛇腹状管部材７０の一端開口部７１を見たときに、流通方向Ａの上流側における、蛇腹状管部材７０の中間部分７３の内方へ突出する蛇腹状管部材７０の中間部分７３の内周面の突出端部、及び、流通方向Ａの上流側における、蛇腹状管部材７０の他端開口部７２の端縁に一致する位置関係を有する。この構成により、蛇腹状管部材７０における流通方向Ａの上流側において蛇腹状管部材７０に流入した汚物等が不必要に上流側へ膨らんで流れることを抑えることができる。このため、流通方向Ａの蛇腹状管部材７０の上流側において、水の乱流の発生を抑えることができる。 Further, on the upstream side in the flow direction A, the edge of the one-end opening 71 of the bellows-like tubular member 70 is connected to the bellows-like tubular member 70 from the inflow direction B of the solid-liquid mixture flowing into the one-end opening 71 of the bellows-like tubular member 70. When the one end opening 71 of the bellows 70 is viewed, the inner peripheral surface of the middle part 73 of the bellows-like tube member 70 protrudes inward of the middle part 73 of the bellows-like tube member 70 on the upstream side in the flow direction A. It has a positional relationship that coincides with the end and the edge of the other end opening 72 of the bellows-like tube member 70 on the upstream side in the flow direction A. With this configuration, it is possible to suppress the undesired swelling and the like flowing into the bellows-like pipe member 70 from flowing unnecessarily bulging to the upstream side in the flow direction A of the bellows-like pipe member 70. For this reason, the generation of turbulent flow of water can be suppressed on the upstream side of the bellows-like pipe member 70 in the flow direction A.

また、接続管５０は、筒状部５１と、ガイド部５５と、を有する。
ガイド部５５の一端部は、筒状部５１の側面に接続され、ガイド部５５の他端部は、蛇腹状管部材７０の他端開口部７２に接続され、流入方向Ｂにおいて、蛇腹状管部材７０の一端開口部７１の開口は、ガイド部５５の一端部寄りの部分の内面（側面５５５）に対向し、ガイド部５５は、蛇腹状管部材７０に流入した固液混合物を、流通方向Ａにおいて蛇腹状管部材７０の他端開口部７２よりも下流側の筒状部５１の部分へ向けて流通する。
筒状部５１の他端部は、筒状部５１の内周面に沿って他の横配管２００の端部を挿入可能に、筒状部５１の他端部近傍の部分の内径に対して拡径した内周面大径部５２１を有し、内周面大径部５２１の内周面と筒状部５１の他端部近傍の部分の内周面（中間筒部５３の内周面）とは、内径の差による他端部側段部５０２を形成する。ガイド部５５の一端部は、流通方向Ａにおいて、他端部側段部５０２まで延びている。 Further, the connection pipe 50 has a tubular portion 51 and a guide portion 55.
One end of the guide portion 55 is connected to the side surface of the tubular portion 51, and the other end of the guide portion 55 is connected to the other end opening 72 of the bellows-like tube member 70. The opening of the one end opening 71 of the member 70 faces the inner surface (side surface 555) of the portion near the one end of the guide portion 55, and the guide portion 55 transfers the solid-liquid mixture flowing into the bellows-like tube member 70 in the flow direction. At A, the fluid flows toward the tubular portion 51 downstream of the other end opening 72 of the bellows-like tubular member 70.
The other end of the tubular portion 51 is inserted into the end of the other horizontal pipe 200 along the inner peripheral surface of the tubular portion 51 so as to be inserted into the inner portion of the portion near the other end of the tubular portion 51. It has an enlarged inner peripheral surface large diameter portion 521, and has an inner peripheral surface of the inner peripheral surface large diameter portion 521 and an inner peripheral surface of a portion near the other end of the cylindrical portion 51 (the inner peripheral surface of the intermediate cylindrical portion 53). ) Forms the other end side step 502 due to the difference in inner diameter. One end of the guide portion 55 extends to the other end side step portion 502 in the flow direction A.

この構成により、ガイド部５５へ流入した汚物等を、ガイド部５５によって案内して、他端部側段部５０２よりも下流側を狙うように、他端部側段部５０２における接続管５０の軸心寄りの方向へ流すことができる。このため、主として汚物等を他端部側段部５０２に衝突するように流さずに、極力他端部側段部５０２を回避するように汚物等を流すことができる。この結果、他端部側段部５０２に汚物等を引っ掛かりにくくすることができる。 With this configuration, the connection pipe 50 at the other end side step portion 502 is guided by the guide portion 55 to guide dirt and the like flowing into the guide portion 55 so as to aim at a downstream side of the other end side step portion 502. It can flow in the direction near the axis. For this reason, it is possible to flow the dirt and the like so as to avoid the other end side step 502 as much as possible without flowing the dirt and the like mainly so as to collide with the other end side step 502. As a result, it is possible to prevent dirt and the like from being easily caught on the other end side step portion 502.

また、パブリックトイレ設備１においては、器具は、便器装置１００を構成し、横配管２００は、複数の便器装置１００にそれぞれ接続された接続管５０同士を連結し、横配管２００は、複数の横配管２００の一端側から他端側に向って下るように傾斜して配置されている。この構成により、使用頻度の高いパブリックトイレ設備１においても、排水不良の懸念が少ない状態で、便器装置１００を使用することができる。 Further, in the public toilet facility 1, the utensil constitutes the toilet device 100, the horizontal pipe 200 connects the connection pipes 50 respectively connected to the plurality of toilet devices 100, and the horizontal pipe 200 includes the plurality of horizontal pipes. The pipe 200 is arranged to be inclined from one end to the other end. With this configuration, the toilet apparatus 100 can be used even in the frequently used public toilet facility 1 in a state where there is little concern about poor drainage.

また、上記構成の実施形態による、横配管接続構造によれば、以下のような効果を得ることができる。
横配管接続構造は、一の横配管２００としての上流側の横配管２００−１と他の横配管２００としての下流側の横配管２００−２とを接続し、上流側の横配管２００−１から流通する固液混合物を下流側の横配管２００−２へ流通する接続管５０を備える。接続管５０は、中間筒部を有する筒状部５１を備えている。筒状部５１の一端部は、筒状部５１の内周面に沿って上流側の横配管２００−１の端部を挿入可能に、筒状部５１の一端部近傍の部分の内径に対して拡径した内径を有する内周面大径部５１１を有している。筒状部５１の他端部は、筒状部５１の内周面に沿って下流側の横配管２００−２の端部を挿入可能に、筒状部５１の他端部近傍の部分の内径に対して拡径した内径を有する内周面大径部５２１を有している。
筒状部５１の一端部の内周面大径部５１１と他端部の内周面大径部５２１とは、中間筒部５３により接続される。筒状部５１の一端部側の中間筒部５３の一端部の内径Ｄ１１は、筒状部５１の他端部側の中間筒部５３の他端部の内径Ｄ２１よりも大きい。中間筒部５３の一端部の内周面と、筒状部５１の一端部の内周面大径部５１１の内周面とは、一端部側段部５０１を形成する。一端部側段部５０１における段差、即ち、中間筒部５３の一端部の内周面の内径Ｄ１１と、筒状部５１の一端部の内周面大径部５１１の内径との差（高さＨ１）は、所定の値未満である。中間筒部５３の他端部の内周面と、筒状部５１の他端部の内周面大径部５２１の内周面とは、他端部側段部５０２を形成する。他端部側段部５０２における段差、即ち、中間筒部５３の他端部の内周面の内径と、筒状部５１の他端部の内周面大径部５２１の内径との差（高さＨ２）は、所定の値を超える。 Further, according to the lateral pipe connection structure according to the embodiment of the above configuration, the following effects can be obtained.
The horizontal pipe connection structure connects an upstream horizontal pipe 200-1 as one horizontal pipe 200 and a downstream horizontal pipe 200-2 as another horizontal pipe 200, and forms an upstream horizontal pipe 200-1. And a connecting pipe 50 for flowing the solid-liquid mixture flowing from the downstream side to the horizontal pipe 200-2 on the downstream side. The connection pipe 50 includes a tubular portion 51 having an intermediate tubular portion. One end of the tubular portion 51 is inserted along the inner peripheral surface of the tubular portion 51 so that the end of the upstream horizontal pipe 200-1 can be inserted into the tubular portion 51 with respect to the inner diameter of the portion near the one end of the tubular portion 51. The inner peripheral surface has a large-diameter portion 511 having an inner diameter that is enlarged. The other end of the tubular portion 51 has an inner diameter near the other end of the tubular portion 51 so that the end of the downstream horizontal pipe 200-2 can be inserted along the inner peripheral surface of the tubular portion 51. The inner peripheral surface has a large-diameter portion 521 having an inner diameter that is larger than the inner diameter.
The inner peripheral large-diameter portion 511 at one end of the cylindrical portion 51 and the inner peripheral large-diameter portion 521 at the other end are connected by an intermediate cylindrical portion 53. An inner diameter D11 of one end of the intermediate tubular portion 53 at one end of the tubular portion 51 is larger than an inner diameter D21 of the other end of the intermediate tubular portion 53 at the other end of the tubular portion 51. The inner peripheral surface at one end of the intermediate cylindrical portion 53 and the inner peripheral surface of the large-diameter portion 511 at one end of the cylindrical portion 51 form an end-side step portion 501. The step in the one end side step portion 501, that is, the difference between the inner diameter D11 of the inner peripheral surface at one end of the intermediate cylindrical portion 53 and the inner diameter of the inner peripheral surface large diameter portion 511 at one end of the cylindrical portion 51 (height) H1) is less than a predetermined value. The inner peripheral surface of the other end portion of the intermediate cylindrical portion 53 and the inner peripheral surface of the inner peripheral surface large-diameter portion 521 of the other end portion of the tubular portion 51 form the other end side step portion 502. The step in the other end side step portion 502, that is, the difference between the inner diameter of the inner peripheral surface of the other end portion of the intermediate cylindrical portion 53 and the inner diameter of the inner peripheral surface large diameter portion 521 of the other end portion of the cylindrical portion 51 ( The height H2) exceeds a predetermined value.

この構成により、所定の値の厚さＴ１を有する上流側の横配管２００−１の端部を筒状部５１の一端部の内周面大径部５１１に挿入すると、上流側の横配管２００−１の端部の内周面と、筒状部５１の一端部近傍の中間筒部５３の内周面とにより段差が生ずる。この段差においては、流通方向Ａの上流側の横配管２００−１の端部の内周面の内径の方が、流通方向Ａの下流側に位置する筒状部５１の内周面（中間筒部５３の内周面）の内径よりも小さく、中間筒部５３の内周面の半径方向内方に位置しているため、上流側の横配管２００−１から流れる汚物や紙等が、この段差に引っ掛かりにくい。 With this configuration, when the end of the upstream side horizontal pipe 200-1 having a thickness T1 of a predetermined value is inserted into the large-diameter inner peripheral surface portion 511 at one end of the cylindrical portion 51, the upstream side horizontal pipe 200 A step is formed between the inner peripheral surface at the end of -1 and the inner peripheral surface of the intermediate cylindrical portion 53 near one end of the cylindrical portion 51. In this step, the inner diameter of the inner peripheral surface at the end of the horizontal pipe 200-1 on the upstream side in the flow direction A is larger than the inner peripheral surface (the intermediate cylinder) of the tubular portion 51 located on the downstream side in the flow direction A. Is smaller than the inner diameter of the inner peripheral surface of the intermediate portion 53 and is located radially inward of the inner peripheral surface of the intermediate cylindrical portion 53. It is hard to be caught on steps.

同様に、所定の値の厚さＴ１を有する下流側の横配管２００−２の端部を筒状部５１の他端部の内周面大径部５２１に挿入すると、下流側の横配管２００−２の端部の内周面と、筒状部５１の他端部近傍の中間筒部５３の内周面とにより段差が形成される。この段差においては、下流側の横配管２００−２に対して、流通方向Ａの上流側に位置する筒状部５１の内周面（中間筒部５３の内周面）の内径の方が、流通方向Ａの下流側の横配管２００−２の端部の内周面の内径よりも小さく、横配管２００及び筒状部５１の半径方向内方に位置しているため、筒状部５１を流れる汚物や紙等が、この段差に引っ掛かりにくい。 Similarly, when the end of the downstream side horizontal pipe 200-2 having a thickness T1 of a predetermined value is inserted into the inner peripheral surface large diameter portion 521 at the other end of the tubular portion 51, the downstream side horizontal pipe 200 A step is formed by the inner peripheral surface at the end of -2 and the inner peripheral surface of the intermediate cylindrical portion 53 near the other end of the cylindrical portion 51. In this step, the inner diameter of the inner peripheral surface of the cylindrical portion 51 (the inner peripheral surface of the intermediate cylindrical portion 53) located on the upstream side in the flow direction A is larger than the inner diameter of the downstream lateral pipe 200-2. Since the inner diameter of the inner peripheral surface of the end of the horizontal pipe 200-2 on the downstream side in the flow direction A is smaller than the inner diameter of the horizontal pipe 200-2 and is located radially inward of the horizontal pipe 200 and the cylindrical part 51, the cylindrical part 51 It is difficult for the flowing dirt and paper to be caught on the steps.

このため、節水化されて汚物等を流す水の量が減少した場合であっても、汚物や紙の流れが、一端部側段部５０１や他端部側段部５０２において阻害されて引っ掛かり、停滞して流れなくなることを抑え、流下する汚物・紙の勢いを殺さず下流側へ導くことができ、縦管まで汚物・紙を搬送されやすくすることができる。 For this reason, even when the amount of water flowing through the wastes is reduced due to water saving, the flow of the wastes and the paper is hindered and caught by the one end side step portion 501 and the other end side step portion 502, It is possible to prevent the stagnation and flow of the sewage and paper from flowing down, and to guide the sewage and paper to the downstream side without killing the momentum of the sewage and paper, thereby facilitating the conveyance of the sewage and paper to the vertical pipe.

また、筒状部５１の一端部の内周面大径部５１１の内径Ｄ１２の値と、筒状部５１の他端部の内周面大径部５２１の内径Ｄ２２の値とは、同一である。このため、所定の値の厚さＴ１と、同一の内径Ｄ１２、Ｄ２２と等しい外径と、をそれぞれ有する上流側の横配管２００−１の端部、下流側の横配管２００−２の端部を、一端部側段部５０１、他端部側段部５０２へそれぞれ挿入することにより、確実に段差に汚物や紙等が引っ掛かりにくい構成とすることができる。 Further, the value of the inner diameter D12 of the inner peripheral surface large diameter portion 511 at one end of the cylindrical portion 51 and the value of the inner diameter D22 of the inner peripheral surface large diameter portion 521 at the other end of the cylindrical portion 51 are the same. is there. For this reason, the end of the upstream side horizontal pipe 200-1 and the end of the downstream side horizontal pipe 200-2 each having a thickness T1 of a predetermined value and an outer diameter equal to the same inner diameter D12, D22. Is inserted into the one end side step portion 501 and the other end side step portion 502, respectively, so that a configuration can be ensured in which dirt, paper, and the like are hardly caught on the step.

また、中間筒部５３の内周面は、中間筒部５３の一端部から、中間筒部５３の他端部へ至るまで、一定の割合で縮径している。このような構成を有し、中間筒部５３において逆勾配を有する場合であっても、中間筒部５３と横配管２００との間の段差に汚物や紙が引っ掛かりやすい場合と比較して、流下する汚物・紙の勢いが大きく損なわれることを抑えることができる。 Further, the inner peripheral surface of the intermediate cylindrical portion 53 is reduced in diameter at a constant rate from one end of the intermediate cylindrical portion 53 to the other end of the intermediate cylindrical portion 53. With such a configuration, even in the case where the intermediate cylinder portion 53 has a reverse gradient, as compared with the case where dirt and paper are likely to be caught on the step between the intermediate cylinder portion 53 and the horizontal pipe 200, It is possible to suppress the momentum of the waste and paper to be greatly impaired.

本発明は上記実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれる。
例えば、接続管、蛇腹状管部材、便器装置、横配管等の構成は、上記実施形態における接続管５０、蛇腹状管部材７０、便器装置１００、横配管２００等の構成に限定されない。例えば、本実施形態においては、便器装置１００は壁掛け式の便器装置により構成されていたが、壁掛け式に限定されない。また、接続管５０は便器装置１００に接続されていたが、接続管が接続される対象は、便器装置に限定されない。 The present invention is not limited to the above embodiment, and includes modifications and improvements as long as the object of the present invention can be achieved.
For example, the configuration of the connection pipe, the bellows-like pipe member, the toilet device, the horizontal piping, and the like are not limited to the configurations of the connection pipe 50, the bellows-like pipe member 70, the toilet device 100, the horizontal piping 200, and the like in the above embodiment. For example, in the present embodiment, the toilet device 100 is configured by a wall-mounted toilet device, but is not limited to a wall-mounted toilet device. In addition, the connection pipe 50 is connected to the toilet device 100, but the connection target of the connection pipe is not limited to the toilet device.

また、流通方向Ａの上流側における、蛇腹状管部材７０の一端開口部７１の端縁は、流通方向Ａの上流側における、蛇腹状管部材７０の他端開口部７２が接続される接続管５０の開口部の端縁、即ち、流通方向Ａの上流側におけるガイド部５５の他端部の開口端縁５５３よりも、僅かに流通方向Ａの下流側に位置していたが、この構成に限定されない。例えば、流通方向Ａの上流側における、蛇腹状管部材７０の一端開口部７１の端縁は、流通方向Ａの上流側における、蛇腹状管部材７０の他端開口部７２が接続される接続管５０の開口部の端縁、即ち、流通方向Ａの上流側におけるガイド部５５の他端部の開口端縁５５３と一致する位置にあってもよい。 Further, an end edge of the one end opening 71 of the bellows-like pipe member 70 on the upstream side in the flow direction A is connected to the other end opening 72 of the bellows-like pipe member 70 on the upstream side in the flow direction A. Although the edge of the opening 50, that is, the opening edge 553 of the other end of the guide portion 55 on the upstream side in the flow direction A, is located slightly downstream in the flow direction A, Not limited. For example, an end edge of one end opening 71 of the bellows-shaped pipe member 70 on the upstream side in the flow direction A is connected to the other end opening 72 of the bellows-shaped pipe member 70 on the upstream side in the flow direction A. The opening may be located at the position corresponding to the edge of the 50 opening, that is, the opening edge 553 of the other end of the guide portion 55 on the upstream side in the flow direction A.

また、例えば、本実施形態においては、流通方向Ａの上流側における、蛇腹状管部材７０の一端開口部７１の端縁（開口端縁７１２）は、蛇腹状管部材７０の一端開口部７１に流入する固液混合物の流入方向Ｂから蛇腹状管部材７０の一端開口部７１を見たときに、流通方向Ａの上流側における、蛇腹状管部材７０の中間部分７３の内方へ突出する蛇腹状管部材７０の中間部分７３の内周面の突出端部、及び、蛇腹状管部材７０の他端開口部７２の端縁（開口端縁７２２）に一致する位置関係を有していたが、この構成に限定されない。
例えば、流通方向Ａの上流側における、蛇腹状管部材７０の一端開口部７１の端縁（開口端縁７１２）は、蛇腹状管部材７０の一端開口部７１に流入する固液混合物の流入方向Ｂから蛇腹状管部材７０の一端開口部７１を見たときに、流通方向Ａの上流側における、蛇腹状管部材７０の中間部分７３の内方へ突出する蛇腹状管部材７０の中間部分７３の内周面の突出端部、又は、蛇腹状管部材７０の他端開口部７２の端縁（開口端縁７２２）に一致する位置関係を有していてもよいし、又は、蛇腹状管部材７０の中間部分７３の内方へ突出する蛇腹状管部材７０の中間部分７３の内周面の突出端部、及び、流通方向Ａの上流側における、蛇腹状管部材７０の他端開口部７２の端縁（開口端縁７２２）が、蛇腹状管部材７０の一端開口部７１の端縁（開口端縁７１２）よりも流通方向Ａの上流側（図７における左側）に位置して、一端開口部７１の端縁（開口端縁７１２）が、蛇腹状管部材７０の中間部分７３の内周面の突出端部、及び、蛇腹状管部材７０の他端開口部７２の開口端縁７２２に重ならない位置関係を有してもよい。 Further, for example, in the present embodiment, the edge (opening edge 712) of the one-end opening 71 of the bellows-like tube member 70 on the upstream side in the flow direction A is connected to the one-end opening 71 of the bellows-like tube member 70. When the one end opening 71 of the bellows-like pipe member 70 is viewed from the inflow direction B of the flowing solid-liquid mixture, the bellows projecting inward from the intermediate portion 73 of the bellows-like pipe member 70 on the upstream side in the flow direction A. It has a positional relationship that matches the protruding end of the inner peripheral surface of the intermediate portion 73 of the tubular member 70 and the edge (opening edge 722) of the other end opening 72 of the bellows-like tubular member 70. However, the present invention is not limited to this configuration.
For example, the end edge (opening edge 712) of the one end opening 71 of the bellows-like pipe member 70 on the upstream side in the flow direction A is the inflow direction of the solid-liquid mixture flowing into the one end opening 71 of the bellows-like tube member 70. When the one end opening 71 of the bellows-like tube member 70 is viewed from B, the intermediate portion 73 of the bellows-like tube member 70 protruding inward from the intermediate portion 73 of the bellows-like tube member 70 on the upstream side in the flow direction A. May have a positional relationship that coincides with the protruding end of the inner peripheral surface or the edge (opening edge 722) of the other end opening 72 of the bellows-like tube member 70, or the bellows-like tube The protruding end of the inner peripheral surface of the intermediate portion 73 of the bellows-like tube member 70 protruding inward from the intermediate portion 73 of the member 70, and the other end opening of the bellows-like tube member 70 on the upstream side in the flow direction A The edge of 72 (opening edge 722) is the one end opening 71 of the bellows-like tube member 70. The edge (opening edge 712) of the one end opening 71 is located on the upstream side (left side in FIG. 7) of the flow direction A from the edge (opening edge 712), and the intermediate portion 73 of the bellows-like tube member 70. And the opening end 722 of the other end opening 72 of the bellows-like pipe member 70 may have a positional relationship that does not overlap.

また、本実施形態では、所定の値は、内周面大径部５１１、５２１に挿入される上流側及び下流側の横配管２００−１、２００−２の端部の厚さＴ１に一致しており、内周面大径部５１１に挿入される上流側の横配管２００−１の端部の厚さＴ１と、内周面大径部５２１に挿入される下流側の横配管２００−２の端部の厚さＴ１とは同一であったが、この構成に限定されない。例えば、一端部の内周面大径部５１１に挿入される上流側の横配管２００−１の端部の厚さと、他端部の内周面大径部５２１に挿入される下流側の横配管２００−２の端部の厚さとは、異なっていてもよい。また、本実施形態では、横配管２００としては、「ＪＩＳＫ６７４１」で規定されるポリ塩化ビニルパイプ「ＶＰ１００」が用いられたが、これに限定されない。例えば、横配管として、「ＶＰ７５」が用いられてもよく、これに応じて、内径Ｄ１１、Ｄ２１の値が適宜設定されてもよい。 In the present embodiment, the predetermined value is equal to the thickness T1 of the ends of the upstream and downstream side horizontal pipes 200-1 and 200-2 inserted into the inner peripheral surface large diameter portions 511 and 521. The thickness T1 of the end of the upstream side horizontal pipe 200-1 inserted into the inner peripheral surface large diameter portion 511, and the downstream side horizontal pipe 200-2 inserted into the inner peripheral surface large diameter portion 521. Is the same as the thickness T1 at the end, but is not limited to this configuration. For example, the thickness of the end of the upstream side horizontal pipe 200-1 inserted into the inner peripheral surface large-diameter portion 511 at one end and the downstream lateral pipe inserted into the inner peripheral surface large-diameter portion 521 at the other end. The thickness of the end of the pipe 200-2 may be different. Further, in the present embodiment, as the horizontal pipe 200, a polyvinyl chloride pipe “VP100” specified by “JIS K 6741” is used, but the present invention is not limited to this. For example, “VP75” may be used as the horizontal pipe, and the values of the inner diameters D11 and D21 may be set as appropriate.

１…パブリックトイレ設備（トイレ設備）
５０…接続管
５１…筒状部
５３…中間筒部
５５…ガイド部
７０…蛇腹状管部材
７１…一端開口部
７２…他端開口部
７３…中間部分
１００…便器装置（器具）
２００…横配管
５０１…一端部側段部
５０２…他端部側段部
５１１、５２１…内周面大径部
５５１…一端部
５５３…開口端縁（端縁）
７１２…開口端縁（端縁）
７２２…開口端縁（端縁）
Ａ…流通方向
Ｂ…流入方向
Ｈ１、Ｈ２…高さの差
Ｔ１…厚さ（所定の値） 1. Public toilet facilities (toilet facilities)
50 ... connecting pipe 51 ... tubular part 53 ... intermediate tubular part 55 ... guide part 70 ... bellows-like pipe member 71 ... one end opening 72 ... other end opening 73 ... middle part 100 ... toilet bowl (apparatus)
200 ... horizontal piping 501 ... one end side step portion 502 ... other end side step portion 511, 521 ... inner peripheral surface large diameter portion 551 ... one end portion 553 ... opening edge (edge)
712: Opening edge (edge)
722: Opening edge (edge)
A: Flow direction B: Inflow direction H1, H2: Height difference T1: Thickness (predetermined value)

Claims

A connecting pipe for connecting one horizontal pipe and another horizontal pipe, and for flowing the solid-liquid mixture flowing from the one horizontal pipe to the other horizontal pipe,
The connection pipe includes a tubular portion having an intermediate tubular portion,
One end of the tubular portion has an inner diameter that is enlarged relative to the inner diameter of one end of the intermediate tubular portion so that the end of the one horizontal pipe can be inserted along the inner peripheral surface of the tubular portion. Having an inner peripheral large diameter portion,
The other end of the tubular portion has an enlarged diameter with respect to the inner diameter of the other end of the intermediate tubular portion so that the end of the other horizontal pipe can be inserted along the inner peripheral surface of the tubular portion . Having an inner peripheral large diameter portion having an inner diameter,
An inner peripheral surface large diameter portion at one end of the cylindrical portion and an inner peripheral surface large diameter portion at the other end are connected by the intermediate cylindrical portion,
The inner diameter of one end of the intermediate cylindrical portion at one end of the cylindrical portion is larger than the inner diameter of the other end of the intermediate cylindrical portion at the other end of the cylindrical portion.
The inner peripheral surface of one end of the intermediate cylindrical portion and the inner peripheral surface of the large diameter portion of the inner peripheral surface at one end of the cylindrical portion form one end side step, and the one end side step Is less than a predetermined value,
The inner peripheral surface of the other end of the intermediate cylindrical portion, and the inner peripheral surface of the inner peripheral surface large diameter portion of the other end of the cylindrical portion form a step on the other end side, the other end The step in the section side section exceeds a predetermined value ,
Said predetermined value, Ru thickness der end of the horizontal piping, horizontal pipe connection structure.

The value of the inner diameter of the large diameter portion of the inner peripheral surface at one end of the cylindrical portion and the value of the inner diameter of the large diameter portion of the inner peripheral surface at the other end of the cylindrical portion are the same. Horizontal piping connection structure.

The inner peripheral surface of the intermediate cylindrical portion is reduced in diameter at a constant rate from one end of the intermediate cylindrical portion to the other end of the intermediate cylindrical portion. Horizontal piping connection structure.

The connection pipe has one end connected to a side surface of the intermediate cylindrical portion, a guide portion through which the solid-liquid mixture flows in from the other end portion and flows the solid-liquid mixture to the cylindrical portion,
The one end of the guide portion extends to the step on the other end side in the flow direction of the solid-liquid mixture flowing in the one horizontal pipe and the other horizontal pipe. Horizontal piping connection structure described in 1.

A lateral piping connection structure according to any one of claims 1 to 4,
The connection pipe is connected to a toilet device, and the solid-liquid mixture flows into the connection pipe from the toilet device,
The horizontal pipe connects the connection pipes respectively connected to the plurality of toilet devices,
The toilet facility, wherein the horizontal piping is arranged to be inclined from one end to the other end of the plurality of horizontal pipings.