JPH06173331A - Drainage basin - Google Patents
Drainage basinInfo
- Publication number
- JPH06173331A JPH06173331A JP32791092A JP32791092A JPH06173331A JP H06173331 A JPH06173331 A JP H06173331A JP 32791092 A JP32791092 A JP 32791092A JP 32791092 A JP32791092 A JP 32791092A JP H06173331 A JPH06173331 A JP H06173331A
- Authority
- JP
- Japan
- Prior art keywords
- drainage basin
- closing plate
- drainage
- basin
- inlet
- 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
- Sewage (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は複数個の流入口を有する
排水桝に関する。FIELD OF THE INVENTION The present invention relates to a drainage basin having a plurality of inlets.
【０００２】[0002]
【従来の技術】従来、宅地内の家屋等がまだ建築されて
いない場合の下水道工事に際しては、まず、複数個の流
入口を有する排水桝、例えば図６に示す公共桝１の流出
口２を取付管（図示せず）を介して下水道本管（図示せ
ず）に接続して所定位置に設置し、公共桝本体３の側部
に突設した複数個の流入口４に、外周に弾性リング５を
嵌着したプラグ６をそれぞれ嵌挿して閉塞し、掃除口７
にパイプ（図示せず）を接続し、地表面まで立ち上げた
パイプの上端を（図示せず）蓋体にて閉塞して、公共桝
１を埋め戻す。次いで、宅地内に家屋等が建築され排水
本管（図示せず）の接続位置が決まったときに、公共桝
１の接続位置近傍を掘削し、この接続位置の流入口４の
プラグ６を外してこの流入口４に家屋等から導出された
排水本管を接続し、残りの流入口４にはプラグ６を嵌挿
したまま周囲に土砂を埋め戻し、公共桝１を埋設してい
る。2. Description of the Related Art Conventionally, in the case of sewer construction in the case where a house or the like in a residential land has not yet been constructed, first, a drainage basin having a plurality of inlets, for example, an outlet 2 of a public basin 1 shown in FIG. It is connected to a sewer main pipe (not shown) via a mounting pipe (not shown) and installed at a predetermined position. A plurality of inflow ports 4 projecting from the side of the public basin body 3 are elastic at the outer circumference. The plugs 6 to which the rings 5 are fitted are respectively inserted and closed, and the cleaning port 7
A pipe (not shown) is connected to, and the upper end of the pipe raised to the ground surface is closed with a lid (not shown) to backfill the public basin 1. Next, when a house or the like is built in the residential area and the connection position of the drainage main (not shown) is determined, the vicinity of the connection position of the public basin 1 is excavated, and the plug 6 of the inflow port 4 at this connection position is removed. A drainage main derived from a house or the like is connected to the lever inlet 4, and the public inlet 1 is buried by filling the surrounding inlet 4 with earth and sand while the plug 6 is still inserted.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来の構造の公共桝１では余分なプラグ６の使用が前提と
され、幾つかのプラグ６がそのまま埋設されてしまうた
め、公共桝１のコストがかさむという問題を有してい
る。特に、図６に示すように、汚物の溜りや引っ掛かり
をなくすためにプラグ６は、奥端面８が公共桝本体３の
内面に連続するように彎曲状に形成されているので、プ
ラグ６の製造コストが余分にかさみ、公共桝１のコスト
が一層かさむという問題を有している。However, in the public tub 1 having the above-mentioned conventional structure, it is premised that the extra plugs 6 are used, and some plugs 6 are buried as they are, so that the cost of the public tub 1 is reduced. It has the problem of being bulky. In particular, as shown in FIG. 6, the plug 6 is formed in a curved shape so that the rear end surface 8 is continuous with the inner surface of the public tub main body 3 in order to eliminate accumulation of filth and catching. There is a problem that the cost is excessive and the cost of the public basin 1 is further increased.
【０００４】本発明は、上記問題点に鑑みなされたもの
で、余分なプラグを用いることなく、流入口に接続され
る上流側の管体の位置が決まらない時点で排水桝を予め
所定位置に設置して工事を行うことができ、コストを低
減した排水桝を提供することを目的とする。The present invention has been made in view of the above-mentioned problems, and when the position of the upstream pipe connected to the inflow port is not determined without using an extra plug, the drainage basin is set to a predetermined position in advance. The purpose is to provide a drainage basin that can be installed and constructed at a reduced cost.
【０００５】[0005]
【課題を解決するための手段】請求項１記載の発明の排
水桝は、略筒状の排水桝本体の上部に掃除口を突設し、
側部に複数個の流入口を突設し、他側部または底部に流
出口を突設した排水桝において、前記複数個の流入口の
うち全部または一部の流入口の基端部にこの流入口を閉
塞する薄厚の閉塞板を一体に形成し、かつ、この閉塞板
の内面を前記排水桝本体の側部内面と同一面状に連続し
て形成したものである。The drainage basin of the invention as set forth in claim 1 has a cleaning port projectingly provided on an upper portion of a main body of the drainage basin having a substantially cylindrical shape,
In a drainage basin in which a plurality of inflow ports are projected on the side part and outflow ports are projected on the other side part or the bottom part, all or some of the plurality of inflow ports are provided at the base end part of the inflow port. A thin closing plate that closes the inlet is integrally formed, and the inner surface of the closing plate is continuously formed in the same plane as the side inner surface of the drainage basin body.
【０００６】請求項２記載の発明の排水桝は、請求項１
記載の発明の排水桝において、閉塞板の外面の中央部に
ホールソーのドリル部先端に係合される係合凹部を形成
したものである。The drainage basin of the invention of claim 2 is the same as that of claim 1.
In the drainage basin of the invention described above, an engaging recess for engaging the tip of the drill portion of the hole saw is formed in the central portion of the outer surface of the closing plate.
【０００７】請求項３記載の発明の排水桝は、請求項１
記載の発明の排水桝において、閉塞板の周縁にノックア
ウト用凹溝を形成したものである。The drainage basin of the invention of claim 3 is the same as that of claim 1.
In the drainage basin of the invention described above, a knockout groove is formed in the peripheral edge of the closing plate.
【０００８】[0008]
【作用】請求項１記載の発明は、まず、流出口を下流側
の管体に接続して排水桝を所定位置に設置し、次いで、
宅地内の家屋等が建築されるなどして上流側の管体の接
続位置が決まったときに、この位置の流入口に形成した
薄厚の閉塞板を破断して開口し、この流入口に上流側の
管体を接続し、他の流入口には閉塞板を残したまま周囲
に土砂を埋め戻し、排水桝を埋設する。このため、余分
なプラグを用いることなく、流入口に接続される上流側
の管体の位置が決まらない時点で排水桝を予め所定位置
に設置して工事を行うことができ、排水桝のコストを低
減できる。According to the first aspect of the present invention, first, the outlet is connected to the pipe on the downstream side, and the drainage basin is installed at a predetermined position.
When the connection position of the pipe on the upstream side is decided due to the construction of a house in the residential area, etc., the thin blocking plate formed at the inlet of this position is broken and opened, and the upstream side to this inlet Connect the pipe on the side, fill the surrounding area with earth and sand while leaving a blocking plate at the other inlet, and bury a drainage basin. Therefore, without using an extra plug, it is possible to install the drainage basin in a predetermined position in advance when the position of the upstream pipe connected to the inlet is not determined, and the construction cost can be improved. Can be reduced.
【０００９】また、流入口の内面を排水桝本体の側部内
面と同一面状に連続して形成したので、閉塞板をそのま
ま残した流入口側の排水桝本体の側部内面は閉塞板と滑
らかに連続し、汚物の溜まりや引っ掛かりが防止され、
詰まりが防止される。Further, since the inner surface of the inflow port is continuously formed so as to be flush with the inner surface of the side of the drainage basin body, the inner surface of the side of the drainage basin body on the inflow port side with the blocking plate left is a blocking plate. Continuing smoothly, preventing accumulation of filth and catching,
Prevents clogging.
【００１０】請求項２記載の発明は、ホールソーで閉塞
板を破断する際に、閉塞板の中央部に形成された係合凹
部にホールソーのドリル部先端を係合することにより、
ホールソーの位置決めが容易になる。According to the second aspect of the present invention, when the closing plate is broken by the hole saw, the tip of the drill portion of the hole saw is engaged with the engaging recess formed in the central portion of the closing plate.
Positioning of the hole saw becomes easy.
【００１１】請求項３記載の発明は、カッターナイフな
どで閉塞板を破断する際に、カッターナイフなどで閉塞
板の周縁のノックアウト用凹溝を切断すると、破断作業
が容易になる。According to the third aspect of the present invention, when the closing plate is broken with a cutter knife or the like, the breaking work is facilitated by cutting the knockout groove on the peripheral edge of the closing plate with the cutter knife or the like.
【００１２】[0012]
【実施例】以下、本発明の排水桝の一実施例を図面を参
照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the drainage basin of the present invention will be described below with reference to the drawings.
【００１３】図１および図２において、11は塩化ビニル
樹脂などの合成樹脂にて一体的に成形された排水桝、例
えば公共桝で、この公共桝11は底部が閉塞された略円筒
状の公共桝本体12を有し、この公共桝本体12の上部には
掃除口13が突設され、側部には３個の流入口14（14a ，
14b ，14c ）と流出口15とが互いに略直交方向に突設さ
れている。In FIG. 1 and FIG. 2, 11 is a drainage basin integrally molded with a synthetic resin such as vinyl chloride resin, for example, a public basin, and this public basin 11 is a substantially cylindrical public basin with a closed bottom. It has a basin body 12, a cleaning port 13 is provided on the upper part of the public basin body 12, and three inlets 14 (14a, 14a,
14b, 14c) and the outlet 15 are provided so as to project in a direction substantially orthogonal to each other.
【００１４】また、各流入口14と流出口15の開口側はそ
れぞれ拡径されて受口に形成され、各受口の基端部側に
は管体を係止するストッパー16がそれぞれ環状に形成さ
れている。Further, the opening sides of the respective inlets 14 and the outlets 15 are respectively expanded to form receiving ports, and stoppers 16 for locking the pipes are annularly formed on the base end side of each receiving port. Has been formed.
【００１５】そして、図２および図３に示すように、各
流入口14の基端部には略円形状でやや彎曲した薄厚の閉
塞板17が各流入口14を閉塞するようにそれぞれ公共桝本
体12と一体的に形成され、この閉塞板17の内面17a は公
共桝本体12の側部内面12a と同一面状に連続して形成さ
れている。As shown in FIGS. 2 and 3, at the base end of each inflow port 14, a substantially circular and slightly curved thin-walled closing plate 17 closes each inflow port 14 so as to close each inflow port 14. The closing plate 17 is integrally formed with the main body 12, and the inner surface 17a of the closing plate 17 is formed continuously with the side inner surface 12a of the public tub main body 12 in the same plane.
【００１６】また、各閉塞板17の流入側面すなわち外面
の中央部には断面略Ｖ字状の係合凹部18が凹設され、こ
の係合凹部18にホールソーのドリル部先端を係合できる
ようになっている。さらに、各閉塞板17の外面の周縁に
はノックアウト用凹溝19が環状に凹設されている。Further, an engaging recess 18 having a substantially V-shaped cross section is provided in the center of the inflow side surface, that is, the outer surface of each closing plate 17, so that the tip of the drill portion of the hole saw can be engaged with this engaging recess 18. It has become. Further, a knockout groove 19 is annularly provided in the outer peripheral edge of each closing plate 17.
【００１７】次に、この実施例の作用について説明す
る。Next, the operation of this embodiment will be described.
【００１８】まず、公道下に埋設された下水道本管（図
示せず）に下流側が接続された取付管（図示せず）に、
公共桝11の流出口15を嵌合接着して接続し、掃除口13に
パイプ（図示せず）を嵌合接続し、地表面まで立ち上げ
たパイプの上端開口部を蓋体（図示せず）にて閉塞し、
公共桝11を埋め戻して、公共桝11を宅地内の所定位置に
設置する。First, to a mounting pipe (not shown) whose downstream side is connected to a sewer main (not shown) buried under a public road,
The outlet 15 of the public basin 11 is connected by fitting and bonding, the pipe (not shown) is fitted and connected to the cleaning port 13, and the upper end opening of the pipe that has been raised to the ground surface is covered (not shown). )
The public cell 11 is backfilled and the public cell 11 is installed at a predetermined position in the residential area.
【００１９】次いで、宅地内の家屋等が建築され上流側
の宅地内の排水本管（図示せず）との接続位置が決まっ
たときに、公共桝11の接続位置近傍を掘削し、この接続
位置に合わせて流入口14a ，14b ，14c のうちいずれか
を選択して、例えば流入口14a の閉塞板17を破断して開
口する。次に、開口した流入口14a に排水本管を嵌合接
着して接続し、他の流入口14b ，14c の各閉塞板17をそ
のまま残した状態で、周囲に土砂を埋め戻し、公共桝11
を埋設する。Next, when a house or the like in the residential land is constructed and the connection position with the drainage main (not shown) in the upstream residential land is determined, the vicinity of the public rod 11 is excavated and the connection is established. One of the inlets 14a, 14b, 14c is selected in accordance with the position, and for example, the closing plate 17 of the inlet 14a is broken and opened. Next, the drainage main is fitted and bonded to the opened inlet 14a, and the respective closing plates 17 of the other inlets 14b and 14c are left as they are, and the surroundings are backfilled with earth and sand and the public mud 11
To bury.
【００２０】このように、余分なプラグを用いることな
く、上流側の宅地内の排水本管の接続位置がまだ決まら
ない時点で、公共桝11を所定場所に予め設置して工事が
でき、公共桝11のコストを低減できる。As described above, without using an extra plug, when the connection position of the drainage main in the residential area on the upstream side is not decided yet, the public cell 11 can be preliminarily installed at a predetermined location for construction work. The cost of the grid 11 can be reduced.
【００２１】また、閉塞板17の内面17a を公共桝本体12
の側部内面12a と同一面状に連続して形成しているの
で、閉塞板17を残したまま埋設された流入口14b ，14c
側の公共桝本体12の側部内面12a は上部から下部に至る
まで閉塞板17と滑らかに連続し、汚物の溜まりや引っ掛
かりを防止でき、詰まりを防止できる。Further, the inner surface 17a of the closing plate 17 is connected to the public container main body 12
Since it is continuously formed in the same plane as the side inner surface 12a, the inlets 14b and 14c are buried while the blocking plate 17 remains.
The side inner surface 12a of the public tub main body 12 on the side is smoothly continuous with the closing plate 17 from the upper part to the lower part, and it is possible to prevent accumulation and catching of filth and to prevent clogging.
【００２２】なお、閉塞板17の破断作業の際に、例え
ば、ホールソーのドリル部先端を閉塞板17の中央部に設
けた係合凹部18に係合すると、ホールソーの閉塞板17に
対する位置決めが容易になり、閉塞板17の破断作業がし
易くなる。When the closing plate 17 is broken, for example, if the tip of the drill portion of the hole saw is engaged with the engaging recess 18 provided in the central portion of the closing plate 17, the hole saw can be easily positioned with respect to the closing plate 17. Therefore, the breaking work of the closing plate 17 is facilitated.
【００２３】あるいは、流入口14の大きさに合致したホ
ールソーが現場にない場合など、例えばカッターナイフ
などを用いて閉塞板17を破断する場合は、カッターナイ
フなどで閉塞板17の周縁に凹設したノックアウト用凹溝
19を切断すると、このノックアウト用凹溝19を容易に切
断することができ、閉塞板17の破断作業がし易くなる。Alternatively, when there is no hole saw matching the size of the inflow port 14 at the site, for example, when the closing plate 17 is broken using a cutter knife or the like, a recess is provided in the peripheral edge of the closing plate 17 with a cutter knife or the like. Recessed groove for knockout
When the cutout 19 is cut, the knockout recessed groove 19 can be cut easily, and the work of breaking the closing plate 17 is facilitated.
【００２４】次に、本発明の排水桝の他の実施例を図４
および図５について説明する。Next, another embodiment of the drainage basin of the present invention is shown in FIG.
And FIG. 5 is demonstrated.
【００２５】21は塩化ビニル樹脂などの合成樹脂にて一
体的に成形された排水桝で、この排水桝21は底部が閉塞
された略円筒状の排水桝本体22を有し、この排水桝本体
22の上部には掃除口23が突設され、一側部には排水本管
が接続される流出口24が突設され、他側部には宅地内の
排水本管が接続される流入口25a が突設され、さらにこ
の流入口25a に対して略45°方向に枝管としての流入口
25b ，25c が左右側（図４の上側および下側）にそれぞ
れ突設されている。Reference numeral 21 is a drainage basin integrally formed of a synthetic resin such as vinyl chloride resin, and this drainage basin 21 has a substantially cylindrical drainage basin body 22 with a closed bottom portion.
A cleaning port 23 is provided on the upper part of 22 and an outlet 24 to which the drainage main is connected is provided on one side, and an inlet 24 to which the drainage main in the residential land is connected is provided on the other side. 25a is projectingly provided, and the inlet as a branch pipe is provided at an angle of approximately 45 ° with respect to the inlet 25a.
25b and 25c are provided on the left and right sides (upper side and lower side in FIG. 4), respectively.
【００２６】また、流入口25b ，25c の基端部は、図３
の閉塞板17と略同一構造を有し、やや彎曲した薄厚の閉
塞板26にて閉塞されている。なお、この閉塞板26は流入
口25b ，25c の流入側から見ると略円形状になってい
る。The base ends of the inflow ports 25b and 25c are shown in FIG.
The closing plate 17 has substantially the same structure as the closing plate 17 and is closed by a slightly curved thin plate 26. The blocking plate 26 has a substantially circular shape when viewed from the inflow side of the inflow ports 25b and 25c.
【００２７】次に、本実施例の作用について説明する。Next, the operation of this embodiment will be described.
【００２８】まず、家屋等から導出した排水管（図示せ
ず）の位置および宅地内の排水本管（図示せず）の流れ
方向に合わせて、流入口25b ，25c のいずれかを選択
し、例えば流入口25b の閉塞板26を破断して開口する。
次いで、流入口25c の閉塞板26をそのまま残した状態
で、排水桝21の流出口24を宅地内の排水本管の下流側に
流入口25a を排水本管の上流側にそれぞれ嵌合接着し、
流入口25b に家屋等から導出した排水管を嵌合接着し、
掃除口23にパイプ（図示せず）を嵌合接続し、地表面ま
で立ち上げたパイプの上端開口部を蓋体にて閉塞し、周
囲に土砂を埋め戻し、排水桝21を設置する。First, one of the inlets 25b and 25c is selected according to the position of the drainage pipe (not shown) derived from the house or the like and the flow direction of the drainage main (not shown) in the residential area. For example, the closing plate 26 at the inflow port 25b is broken and opened.
Then, while leaving the closing plate 26 of the inlet 25c as it is, the outlet 24 of the drainage basin 21 is fitted and bonded to the downstream side of the drainage main in the residential land and the inlet 25a is fitted to the upstream side of the drainage main. ,
Fit a drain pipe derived from a house, etc. into the inlet 25b and bond it,
A pipe (not shown) is fitted and connected to the cleaning port 23, the upper end opening of the pipe that has been raised to the ground surface is closed with a lid, earth and sand are backfilled around, and a drainage basin 21 is installed.
【００２９】従来は、２種類の排水桝（図示せず）、す
なわち、２個の流入口25a ，25b を有する45°Ｙ型排水
桝と２個の流入口25a ，25c を有する45°Ｙ型排水桝を
それぞれ準備しておき、設置現場で、家屋等から導出し
た排水管の位置および宅地内の排水本管の流れ方向に合
わせて、いずれかの排水桝を選択して設置していたが、
本実施例では、１個の排水桝で、従来の２種類の排水桝
を兼用でき、排水桝の在庫管理が容易になるとともに、
金型を１個節約できるので、製造コストが低減する。Conventionally, two types of drainage basins (not shown), that is, a 45 ° Y type drainage basin having two inlets 25a and 25b and a 45 ° Y type having two inlets 25a and 25c. We prepared each drainage basin, and at the installation site, we selected and installed one of the drainage basins according to the position of the drainage pipe derived from the house and the flow direction of the drainage main in the residential land. ,
In this embodiment, one drainage basin can also serve as two types of conventional drainage basins, which facilitates inventory management of drainage basins.
Since one die can be saved, the manufacturing cost is reduced.
【００３０】また、排水桝21では、図１ないし図３に示
す公共桝11と同様に、ホールソーのドリル先端部を閉塞
板26の係合凹部（図示せず）に係合するとホールソーの
位置決めが容易になり、カッターナイフなどで閉塞板26
のノックアウト用凹溝19を切断すると容易に切断するこ
とができ、さらに、閉塞板26を残したまま埋設された流
入口25c 側の排水桝本体22の側部内面22a は閉塞板26と
滑らかに連続し、汚物の溜まりや引っ掛かりを防止で
き、詰まりを防止できる。Further, in the drainage basin 21, similarly to the public basin 11 shown in FIGS. 1 to 3, when the drill tip of the hole saw is engaged with the engaging recess (not shown) of the closing plate 26, the positioning of the hole saw is performed. It will be easier and the closure plate 26 with a cutter knife etc.
It can be easily cut by cutting the knock-out recessed groove 19 of, and the side inner surface 22a of the drainage basin body 22 on the side of the inlet 25c which is buried with the closing plate 26 left smoothly with the closing plate 26. Continuously, it is possible to prevent accumulation and catching of filth and prevent clogging.
【００３１】なお、図３では、ノックアウト用凹溝19を
閉塞板17の外面のみの周縁に凹設したものについて説明
したが、ノックアウト用凹溝19を外面の周縁のみでなく
内面と外面との両面の周縁に凹設することができる。ま
た、図３では、閉塞板17に係合凹部18とノックアウト用
凹溝19の両者を設けたものについて説明したが、例えば
閉塞板17の破断に用いる手段が予め定まっている場合に
は、係合凹部18およびノックアウト用凹溝19のいずれか
一方のみを閉塞板17に設けることができる。In FIG. 3, a description has been given of the case where the knockout concave groove 19 is provided in the peripheral edge of only the outer surface of the closing plate 17, but the knockout concave groove 19 is formed not only on the outer peripheral edge but also on the inner surface and the outer surface. It can be recessed on the periphery of both sides. Further, in FIG. 3, the description has been given of the case where the closing recess 17 and the knock-out recess groove 19 are provided in the closing plate 17, but, for example, when the means used for breaking the closing plate 17 is predetermined, Only one of the fitting recess 18 and the knockout recess 19 can be provided in the closing plate 17.
【００３２】また、各実施例では、流出口を排水桝本体
の側部に突設したものについて説明したが、本発明はこ
れに限られるものではなく、流出口を排水桝本体の底部
に突設した排水桝にも適用できる。Further, in each of the embodiments, the description has been given of the case where the outlet is provided on the side of the drainage container main body, but the present invention is not limited to this, and the outlet is projected on the bottom of the drainage pipe main body. It can also be applied to installed drainage basins.
【００３３】[0033]
【発明の効果】請求項１記載の発明によれば、余分なプ
ラグを用いることなく、流入口に接続される上流側の管
体の位置が決まらない時点で、排水桝を予め所定位置に
設置して工事を行うことができ、排水桝のコストを低減
できる。また、閉塞板をそのまま残した流入口側の排水
桝本体の側部内面は閉塞板と滑らかに連続するため、汚
物の溜まりや引っ掛かりを防止でき、詰まりを防止でき
る。According to the first aspect of the present invention, the drainage basin is installed in advance at a predetermined position when the position of the upstream pipe connected to the inlet is not determined without using an extra plug. Construction can be performed and the cost of the drainage basin can be reduced. Further, since the inner surface of the side portion of the drainage basin body on the inlet side where the closing plate is left as it is is continuously continuous with the closing plate, it is possible to prevent accumulation of filth and catching, and to prevent clogging.
【００３４】また、１個の排水桝で複数種の排水桝を兼
用でき、在庫管理が容易になる。Further, one drainage basin can also serve as a plurality of types of drainage basins, which facilitates inventory management.
【００３５】請求項２記載の発明によれば、ホールソー
で閉塞板を破断する際に、閉塞板の中央部に形成された
係合凹部にホールソーのドリル部先端を係合することに
より、ホールソーの位置決めを容易にできる。According to the second aspect of the present invention, when the blocking plate is broken by the hole saw, the tip of the drill portion of the hole saw is engaged with the engaging recess formed in the central portion of the blocking plate. Easy positioning.
【００３６】請求項３記載の発明によれば、カッターナ
イフなどで閉塞板を破断する際に、カッターナイフなど
で閉塞板の周縁のノックアウト用凹溝を切断すると、破
断作業を容易にできる。According to the third aspect of the present invention, when the closing plate is broken with a cutter knife or the like, the breaking operation can be facilitated by cutting the knockout groove on the peripheral edge of the closing plate with the cutter knife or the like.
【図１】本発明の排水桝の一実施例を示す平面図であ
る。FIG. 1 is a plan view showing an embodiment of a drainage basin of the present invention.
【図２】図１のＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.
【図３】図２の一部拡大図である。FIG. 3 is a partially enlarged view of FIG.
【図４】本発明の排水桝の他の実施例を示す平面図であ
る。FIG. 4 is a plan view showing another embodiment of the drainage basin of the present invention.
【図５】図４のＢ−Ｂ線断面図である。5 is a sectional view taken along line BB of FIG.
【図６】従来の排水桝の縦断面図である。FIG. 6 is a vertical sectional view of a conventional drainage basin.
11 排水桝としての公共桝 12 排水桝本体としての公共桝本体 12a 側部内面 13 掃除口 14，14a ，14b ，14c 流入口 15 流出口 17 閉塞板 17a 内面 18 係合凹部 19 ノックアウト用凹溝 11 Public basin as drainage basin 12 Public basin as drainage basin main body 12a Side inner surface 13 Cleaning ports 14, 14a, 14b, 14c Inlet 15 Outlet 17 Closure plate 17a Inner surface 18 Engagement recess 19 Knockout groove for knockout
Claims (3)
設し、側部に複数個の流入口を突設し、他側部または底
部に流出口を突設した排水桝において、 前記複数個の流入口のうち全部または一部の流入口の基
端部にこの流入口を閉塞する薄厚の閉塞板を一体に形成
し、かつ、 この閉塞板の内面を前記排水桝本体の側部内面と同一面
状に連続して形成したことを特徴とする合成樹脂製の排
水桝。1. A drainage basin having a substantially cylindrical drainage basin main body having a cleaning port projecting from the upper portion thereof, a plurality of inflow ports projecting from the side portion thereof, and an outflow port projecting from the other side portion or the bottom thereof. A thin blocking plate that closes the inflow port is integrally formed at the base end of all or some of the plurality of inflow ports, and the inner surface of the blocking plate is formed on the inner surface of the drainage basin body. A drainage basin made of synthetic resin, which is formed continuously with the same inner surface as the side portion.
リル部先端に係合される係合凹部を形成したことを特徴
とする請求項１記載の合成樹脂製の排水桝。2. A drainage basin made of synthetic resin according to claim 1, characterized in that an engaging recess for engaging a tip of a drill portion of a hole saw is formed in a central portion of an outer surface of the closing plate.
成したことを特徴とする請求項１記載の合成樹脂製の排
水桝。3. The drainage basin made of synthetic resin according to claim 1, wherein a recessed groove for knockout is formed on the peripheral edge of the closing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32791092A JPH06173331A (en) | 1992-12-08 | 1992-12-08 | Drainage basin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32791092A JPH06173331A (en) | 1992-12-08 | 1992-12-08 | Drainage basin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06173331A true JPH06173331A (en) | 1994-06-21 |
Family
ID=18204364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32791092A Pending JPH06173331A (en) | 1992-12-08 | 1992-12-08 | Drainage basin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06173331A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009270385A (en) * | 2008-05-09 | 2009-11-19 | Mitsubishi Plastics Inc | Drain pit and its manufacturing method |
-
1992
- 1992-12-08 JP JP32791092A patent/JPH06173331A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009270385A (en) * | 2008-05-09 | 2009-11-19 | Mitsubishi Plastics Inc | Drain pit and its manufacturing method |
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