JPH06158673A - Manhole cover - Google Patents
Manhole coverInfo
- Publication number
- JPH06158673A JPH06158673A JP4339605A JP33960592A JPH06158673A JP H06158673 A JPH06158673 A JP H06158673A JP 4339605 A JP4339605 A JP 4339605A JP 33960592 A JP33960592 A JP 33960592A JP H06158673 A JPH06158673 A JP H06158673A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- receiving frame
- manhole
- lid
- lock mechanism
- 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.)
- Granted
Links
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、上，下水道や地下電力
線等の地中構造物に作業員等が出入りする際に用いられ
るマンホールに係り、特に、密閉型でかつロック型のも
のに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole used when a worker or the like enters or leaves an underground structure such as a water supply system, a sewer system or an underground power line, and more particularly to a hermetically sealed and lock type manhole.
【０００２】[0002]
【従来の技術】従来、密閉型のマンホールとしては、受
枠の内周壁を下方に行くに従って先細りとなるテーパ面
に形成するとともに、蓋体の外周壁をそのテーパ面に合
致するテーパ面に形成し、受枠に蓋体を完全に一致させ
て、マンホール内部に外部から液体（水）が入らないよ
うにしている。2. Description of the Related Art Conventionally, as a closed type manhole, an inner peripheral wall of a receiving frame is formed in a tapered surface which is tapered as it goes downward, and an outer peripheral wall of a lid is formed in a tapered surface matching the tapered surface. The lid is completely aligned with the receiving frame to prevent liquid (water) from entering the manhole from the outside.
【０００３】また、従来のロック型（施錠型）のマンホ
ールとしては、蓋体の一端側を受枠にヒンジ機構を介し
て回動自在に結合するとともに、他端側にロック機構を
設けて施錠できるようにし、不用意に蓋が開かれないよ
うにしている（例えば、実公昭５８−３８９２号公
報）。Further, as a conventional lock type (locking type) manhole, one end of the lid is rotatably coupled to a receiving frame via a hinge mechanism, and a lock mechanism is provided on the other end to lock the manhole. Thus, the lid is prevented from being opened carelessly (for example, Japanese Utility Model Publication No. 58-3892).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の密閉型のマンホールにロック機構を組込んで、密閉
型でかつロック型としたときは、密閉の効果が低下する
欠点があった。However, when the lock mechanism is incorporated into the above-mentioned conventional closed type manhole to make it a closed type and a lock type, there is a drawback that the sealing effect is lowered.
【０００５】なぜならば、ロック機構の操作は、蓋体の
外側から行われるために、ロック機構の一部が蓋体の外
側に位置していなければならず、ロック機構を介してマ
ンホール内部に水が漏れるからである。Because the operation of the lock mechanism is performed from the outside of the lid body, a part of the lock mechanism must be located outside the lid body, and water can be introduced into the manhole through the lock mechanism. Is leaked.
【０００６】このような欠点を解決するために、ロック
機構を水密構造とすることも考えられるが、水密構造に
すると、ロック機構の各部品を精密加工をしなければな
らずコスト高になる新たな問題点が発生する。In order to solve such a drawback, it is conceivable that the lock mechanism has a watertight structure. However, if the watertight structure is adopted, each part of the lock mechanism must be precisely machined, resulting in a high cost. Problem occurs.
【０００７】しかも、マンホールの性質上、外圧が加わ
るために、精密なロック機構に形成しても、すぐに隙間
が生じて水密性が失われるおそれがある。In addition, due to the external pressure applied due to the nature of the manhole, a watertightness may be lost due to a gap immediately formed even if a precise lock mechanism is formed.
【０００８】そこで、本発明は、上記欠点を解決するた
めになされたものであって、その目的は、密閉型でかつ
ロック型のマンホールを簡単な構造で安価で製造するこ
とができるマンホールを提供することにある。Therefore, the present invention has been made in order to solve the above-mentioned drawbacks, and an object thereof is to provide a manhole capable of manufacturing a closed and lock type manhole with a simple structure at a low cost. To do.
【０００９】[0009]
【課題を解決するための手段】本発明に係るマンホール
は、上記目的を達成するために、受枠の内周壁に下方に
行くに従って先細りとなるテーパ面を有するとともに、
蓋体の外周面にその受枠のテーパ面に合致するテーパ面
を有し、かつその蓋体の一端側をその受枠に回転自在に
結合するとともに、その蓋体の他端側とその受枠との間
にロック機構を設けたマンホールにおいて、前記蓋体の
他端側の上部には水密状にキャップ部材を設けるととも
に、そのキャップ部材の下方には、前記ロック機構の操
作部を設けたことを特徴としている。また、蓋体の他端
側には、上部のみ開口し、かつ受枠側はその蓋体の外周
面と一体的に構成されている袋状の鉤穴が設けられてい
ることを特徴としている。In order to achieve the above-mentioned object, a manhole according to the present invention has a tapered surface on the inner peripheral wall of the receiving frame which tapers downward,
The outer peripheral surface of the lid has a tapered surface that matches the tapered surface of the receiving frame, and one end side of the lid is rotatably coupled to the receiving frame, and the other end side of the lid and the receiving frame are In a manhole having a lock mechanism provided therebetween, a watertight cap member is provided on the other end of the lid body, and an operating portion of the lock mechanism is provided below the cap member. I am trying. Further, the other end of the lid is characterized by being provided with a bag-shaped hook hole which is open only at the upper portion and is formed integrally with the outer peripheral surface of the lid on the receiving frame side.
【００１０】[0010]
【作用】上記構成において、受枠と蓋体とはテーパ面で
合致して水密状に保たれるとともに、ロック機構の操作
部も水密状のキャップ部材で覆われる。従って、マンホ
ール内部は、外部と連通するところがない。また、ロッ
ク機構は、キャップ部材を外して操作される。In the above structure, the receiving frame and the lid body are matched with each other by the tapered surfaces to be kept watertight, and the operation portion of the lock mechanism is also covered with the watertight cap member. Therefore, the inside of the manhole does not communicate with the outside. Further, the lock mechanism is operated by removing the cap member.
【００１１】[0011]
【実施例】以下、本発明の実施例を図面に基いて説明す
る。図１は一実施例に係るマンホールの平面図、図２は
図１のＡ−Ａ線拡大断面図、図３は図１のＢ−Ｂ線拡大
断面図である。Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view of a manhole according to an embodiment, FIG. 2 is an enlarged sectional view taken along the line AA of FIG. 1, and FIG. 3 is an enlarged sectional view taken along the line BB of FIG.
【００１２】受枠１の内周壁１ａは、下方に行くに従っ
て先細りとなるテーパ面に形成されている。そして、こ
の受枠１に挿入される蓋体２の外周壁２ａは、受枠１の
テーパ面に合致するテーパ面が形成されている。従っ
て、受枠１に蓋体２が挿入されたときは、受枠１と蓋体
２とは水密状に保たれる。The inner peripheral wall 1a of the receiving frame 1 is formed into a tapered surface which tapers downward. The outer peripheral wall 2a of the lid 2 inserted into the receiving frame 1 has a tapered surface that matches the tapered surface of the receiving frame 1. Therefore, when the lid 2 is inserted into the receiving frame 1, the receiving frame 1 and the lid 2 are kept watertight.
【００１３】蓋体２の一端側（図１において右側）は、
図示しないが周知のヒンジ機構を介して受枠１と回動自
在に結合されている。すなわち、そのヒンジ機構は、受
枠１の内側に穴あきの突片が一体的に設けられていると
ともに、その突片の穴に蓋体２の裏側に一体的に設けら
れた係止片が挿入されるように構成されている。One end side (right side in FIG. 1) of the lid body 2 is
Although not shown, it is rotatably connected to the receiving frame 1 via a well-known hinge mechanism. That is, in the hinge mechanism, a projecting piece having a hole is integrally provided inside the receiving frame 1, and a locking piece integrally provided on the back side of the lid body 2 is inserted into the hole of the projecting piece. Is configured to.
【００１４】蓋体２の他端側（図１において左側）の上
部にはキャップ部材３が設けられている。このキャップ
部材３は、Ｏリング４を備えた雄ねじ５から構成されて
いる。従って、蓋体２には、その雄ねじ５に対応する雌
ねじを有する貫通孔６が設けられており、しかも、キャ
ップ部材３は専用工具（図示せず）を用いて取外しでき
るように構成されている。A cap member 3 is provided on the other end of the lid 2 (on the left side in FIG. 1). The cap member 3 is composed of a male screw 5 having an O-ring 4. Therefore, the lid body 2 is provided with a through hole 6 having a female thread corresponding to the male thread 5, and the cap member 3 can be removed by using a dedicated tool (not shown). .
【００１５】ロック機構Ｒは、キャップ部材３の下方に
位置する蓋体２と一体的に形成された取付片７に設けら
れている。すなわち、このロック機構Ｒは、取付片７に
回動自在に設けられるとともに、下方に垂架するボルト
（本発明の操作部に該当する）８と、ボルト８の下端に
固定され、かつ水平方向に伸びる係止片９とを有してい
る。そして、この係止片９は、ボルト９の回りに設けら
れたリング部材１０により、取付片７との間隔が所定距
離に保たれているとともに、リング部材１０の回りに配
置されたコイルばね１１により、常時、下方へ付勢され
るように構成されている。The lock mechanism R is provided on a mounting piece 7 formed integrally with the lid body 2 located below the cap member 3. That is, the lock mechanism R is rotatably provided on the mounting piece 7, is vertically suspended, and is fixed to the lower end of the bolt 8 (corresponding to the operating portion of the present invention) 8 and in the horizontal direction. It has a locking piece 9 extending to. The locking piece 9 is kept at a predetermined distance from the mounting piece 7 by a ring member 10 provided around the bolt 9, and a coil spring 11 arranged around the ring member 10. Thus, it is configured to be constantly urged downward.
【００１６】ロック機構Ｒは、キャップ部材３を専用工
具を用いて蓋体２から外し、ボルト８の頭部に設けられ
ている凹部８ａに操作棒（図示せず）を挿入して回動さ
せると、係止片９が受枠１の内側下部に設けられた係合
部１ｂに出入りし、施錠，解錠が行われる。In the lock mechanism R, the cap member 3 is removed from the lid body 2 by using a dedicated tool, and an operating rod (not shown) is inserted into a recess 8a provided in the head of the bolt 8 to rotate it. Then, the locking piece 9 moves in and out of the engaging portion 1b provided on the lower inside of the receiving frame 1, and locking and unlocking is performed.
【００１７】ロック機構Ｒを解錠して蓋体２を開けると
きは、ロック機構Ｒの隣りに設けられた鉤穴１１に、図
示しない専用の工具を係合させて行われる。この鉤穴１
１は、上部のみ開口した袋状を呈している。しかも、鉤
穴１１の受枠１側は蓋体２の外周壁２ａと連続したテー
パ面に形成されている。したがって、この鉤穴１１部分
からマンホール内に水が浸入するおそれがない。When the lock mechanism R is unlocked and the lid 2 is opened, a hooking hole 11 provided next to the lock mechanism R is engaged with a dedicated tool (not shown). This hook hole 1
No. 1 has a bag shape with only the upper part opened. Moreover, the receiving hole 1 side of the hook hole 11 is formed as a tapered surface continuous with the outer peripheral wall 2a of the lid 2. Therefore, there is no possibility that water will enter the manhole through the hook hole 11.
【００１８】以上のように、本実施例に係るマンホール
は、受枠１と蓋体２とはテーパ面で水密に合致されると
ともに、ロック機構Ｒもキャップ部材３で水密的に覆わ
れるので、マンホールの外部から内部に水が漏れるおそ
れがない。As described above, in the manhole according to the present embodiment, the receiving frame 1 and the lid body 2 are made watertight by the tapered surfaces, and the lock mechanism R is also watertightly covered by the cap member 3. There is no risk of water leaking from outside to inside.
【００１９】[0019]
【発明の効果】本発明に係るマンホールは、受枠の内周
壁に下方に行くに従って先細りとなるテーパ面を有する
とともに、蓋体の外周面にその受枠のテーパ面に合致す
るテーパ面を有し、かつその蓋体の一端側をその受枠に
回転自在に結合するとともに、その蓋体の他端側とその
受枠との間にロック機構を設けたマンホールにおいて、
前記蓋体の他端側の上部には水密状にキャップ部材を設
けるとともに、そのキャップ部材の下方には、前記ロッ
ク機構の操作部を設けたので、密閉型のマンホールにロ
ック機構を付加しても密閉性が失われることがなく、ま
た、鉤穴は袋状なので、ここからの水の浸入のおそれも
ない。しかも構造が簡単であるので安価に製造すること
ができる。The manhole according to the present invention has a taper surface on the inner peripheral wall of the receiving frame which tapers downward, and a taper surface on the outer peripheral surface of the lid body which matches the taper surface of the receiving frame. And in a manhole in which one end side of the lid body is rotatably coupled to the receiving frame, and a lock mechanism is provided between the other end side of the lid body and the receiving frame,
A watertight cap member is provided on the other end of the lid, and an operating portion of the lock mechanism is provided below the cap member. Therefore, a lock mechanism is added to the sealed manhole. Also, the airtightness is not lost, and since the hook holes are bag-shaped, there is no risk of water ingress from here. Moreover, since the structure is simple, it can be manufactured at low cost.
【図１】本発明の一実施例に係るマンホールの平面図で
ある。FIG. 1 is a plan view of a manhole according to an embodiment of the present invention.
【図２】図１のＡ−Ａ線拡大断面図である。FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.
【図３】図１のＢ−Ｂ線拡大断面図である。FIG. 3 is an enlarged sectional view taken along line BB of FIG.
１ 受枠 １ａ 内周壁 ２ 蓋体 ２ａ 外周壁 ３ キャップ部材 ８ ボルト（操作部） １１ 鉤穴 Ｒ ロック機構 DESCRIPTION OF SYMBOLS 1 Receiving frame 1a Inner peripheral wall 2 Lid 2a Outer peripheral wall 3 Cap member 8 Bolt (operating part) 11 Hook hole R Lock mechanism
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年１月１３日[Submission date] January 13, 1993
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】発明の名称[Name of item to be amended] Title of invention
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【発明の名称】 マンホール蓋[Title of Invention] Manhole cover
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Name of item to be amended] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【特許請求の範囲】[Claims]
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００１[Correction target item name] 0001
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００１】[0001]
【産業上の利用分野】本発明は、上，下水道や地下電力
線等の地中構造物に作業員等が出入りする際に用いられ
るマンホール蓋に係り、特に、密閉型でかつロック型の
ものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole cover used when workers enter and exit underground structures such as waterworks, sewers and underground power lines, and more particularly to a hermetically sealed and lockable manhole cover. .
【手続補正５】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００２[Name of item to be corrected] 0002
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００２】[0002]
【従来の技術】従来、密閉型のマンホール蓋としては、
受枠の内周壁を下方に行くに従って先細りとなるテーパ
面に形成するとともに、蓋体の外周壁をそのテーパ面に
合致するテーパ面に形成し、受枠に蓋体を完全に一致さ
せて、マンホール内部に外部から液体（水）が入らない
ようにしている。2. Description of the Related Art Conventionally, as a closed type manhole cover ,
The inner peripheral wall of the receiving frame is tapered toward the bottom, and the outer peripheral wall of the lid is formed into a tapered surface that matches the tapered surface. The liquid (water) is prevented from entering from the outside.
【手続補正６】[Procedure correction 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００３[Name of item to be corrected] 0003
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００３】また、従来のロック型（施錠型）のマンホ
ール蓋としては、蓋体の一端側を受枠にヒンジ機構を介
して回動自在に結合するとともに、他端側にロック機構
を設けて施錠できるようにし、不用意に蓋が開かれない
ようにしている（例えば、実公昭５８−３８９２号公
報）。Further, as a conventional lock type (locking type) manhole cover , one end side of the cover body is rotatably coupled to a receiving frame via a hinge mechanism, and a lock mechanism is provided at the other end side to lock. This is done so that the lid is not opened carelessly (for example, Japanese Utility Model Publication No. 58-3892).
【手続補正７】[Procedure Amendment 7]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００４[Correction target item name] 0004
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記従
来の密閉型のマンホール蓋にロック機構を組込んで、密
閉型でかつロック型としたときは、密閉の効果が低下す
る欠点があった。However, when the lock mechanism is incorporated into the above-mentioned conventional closed type manhole cover to make it a closed type and a lock type, there is a drawback that the sealing effect is lowered.
【手続補正８】[Procedure Amendment 8]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００８[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００８】そこで、本発明は、上記欠点を解決するた
めになされたものであって、その目的は、密閉型でかつ
ロック型のマンホール蓋を簡単な構造で安価で製造する
ことができるマンホールを提供することにある。Therefore, the present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide a manhole capable of manufacturing a hermetically-sealed and lock-type manhole cover with a simple structure at a low cost. To provide.
【手続補正９】[Procedure Amendment 9]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００９[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００９】[0009]
【課題を解決するための手段】本発明に係るマンホール
蓋は、上記目的を達成するために、受枠の内周壁に下方
に行くに従って先細りとなるテーパ面を有するととも
に、蓋体の外周面にその受枠のテーパ面に合致するテー
パ面を有し、かつその蓋体の一端側をその受枠に回転自
在に結合するとともに、その蓋体の他端側とその受枠と
の間にロック機構を設けたマンホール蓋において、前記
蓋体の他端側の上部には水密状にキャップ部材を設ける
とともに、そのキャップ部材の下方には、前記ロック機
構の操作部を設けたことを特徴としている。また、蓋体
の他端側には、上部のみ開口し、かつ受枠側はその蓋体
の外周面と一体的に構成されている袋状の鉤穴が設けら
れていることを特徴としている。Manhole according to the present invention
In order to achieve the above-mentioned object, the lid has a taper surface on the inner peripheral wall of the receiving frame that tapers downward, and a taper surface on the outer peripheral surface of the lid body that matches the taper surface of the receiving frame, and In a manhole cover in which one end side of the lid is rotatably coupled to the receiving frame, and a lock mechanism is provided between the other end side of the lid and the receiving frame, the manhole lid is provided above the other end side of the lid. Is characterized in that a cap member is provided in a watertight manner, and an operating portion of the lock mechanism is provided below the cap member. Further, the other end of the lid is characterized by being provided with a bag-shaped hook hole which is open only at the upper portion and is formed integrally with the outer peripheral surface of the lid on the receiving frame side.
【手続補正１０】[Procedure Amendment 10]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１１[Correction target item name] 0011
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１１】[0011]
【実施例】以下、本発明の実施例を図面に基いて説明す
る。図１は一実施例に係るマンホール蓋の平面図、図２
は図１のＡ−Ａ線拡大断面図、図３は図１のＢ−Ｂ線拡
大断面図である。Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view of a manhole cover according to an embodiment, FIG.
1 is an enlarged sectional view taken along the line AA of FIG. 1, and FIG. 3 is an enlarged sectional view taken along the line BB of FIG.
【手続補正１１】[Procedure Amendment 11]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１８[Correction target item name] 0018
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１８】以上のように、本実施例に係るマンホール
蓋は、受枠１と蓋体２とはテーパ面で水密に合致される
とともに、ロック機構Ｒもキャップ部材３で水密的に覆
われるので、マンホール蓋の外部から内部に水が漏れる
おそれがない。As described above, the manhole according to this embodiment
In the lid , the receiving frame 1 and the lid body 2 are fitted in a watertight manner by the tapered surfaces, and the lock mechanism R is also watertightly covered by the cap member 3, so that there is no possibility of water leaking from the outside to the inside of the manhole lid .
【手続補正１２】[Procedure Amendment 12]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１９[Correction target item name] 0019
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１９】[0019]
【発明の効果】本発明に係るマンホール蓋は、受枠の内
周壁に下方に行くに従って先細りとなるテーパ面を有す
るとともに、蓋体の外周面にその受枠のテーパ面に合致
するテーパ面を有し、かつその蓋体の一端側をその受枠
に回転自在に結合するとともに、その蓋体の他端側とそ
の受枠との間にロック機構を設けたマンホール蓋におい
て、前記蓋体の他端側の上部には水密状にキャップ部材
を設けるとともに、そのキャップ部材の下方には、前記
ロック機構の操作部を設けたので、密閉型のマンホール
蓋にロック機構を付加しても密閉性が失われることがな
く、また、鉤穴は袋状なので、ここからの水の浸入のお
それもない。しかも構造が簡単であるので安価に製造す
ることができる。According to the manhole cover of the present invention, the inner peripheral wall of the receiving frame has a taper surface which is tapered toward the lower side, and the outer peripheral surface of the lid body has a taper surface which matches the taper surface of the receiving frame. In addition, in the manhole cover in which one end side of the lid is rotatably coupled to the receiving frame, and a lock mechanism is provided between the other end side of the lid and the receiving frame, the lid is provided. Since a cap member is provided in a watertight manner on the other end side of the above, and the operating portion of the lock mechanism is provided below the cap member, a sealed manhole is provided.
Even if a lock mechanism is added to the lid , the airtightness is not lost, and since the hook hole has a bag shape, there is no risk of water intruding from here. Moreover, since the structure is simple, it can be manufactured at low cost.
【手続補正１３】[Procedure Amendment 13]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】図面の簡単な説明[Name of item to be corrected] Brief description of the drawing
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の一実施例に係るマンホール蓋の平面図
である。FIG. 1 is a plan view of a manhole cover according to an embodiment of the present invention.
【図２】図１のＡ−Ａ線拡大断面図である。FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.
【図３】図１のＢ−Ｂ線拡大断面図である。FIG. 3 is an enlarged sectional view taken along line BB of FIG.
【符号の説明】 １ 受枠 １ａ 内周壁 ２ 蓋体 ２ａ 外周壁 ３ キャップ部材 ８ ボルト（操作部） １１ 鉤穴 Ｒ ロック機構[Explanation of reference numerals] 1 receiving frame 1a inner peripheral wall 2 lid 2a outer peripheral wall 3 cap member 8 bolt (operating portion) 11 hook hole R lock mechanism
Claims (2)
りとなるテーパ面を有するとともに、蓋体の外周面にそ
の受枠のテーパ面に合致するテーパ面を有し、かつその
蓋体の一端側をその受枠に回転自在に結合するととも
に、その蓋体の他端側とその受枠との間にロック機構を
設けたマンホールにおいて、 前記蓋体の他端側の上部には水密状にキャップ部材を設
けるとともに、そのキャップ部材の下方には、前記ロッ
ク機構の操作部を設けたことを特徴とするマンホール。1. An inner peripheral wall of a receiving frame has a taper surface which is tapered toward the lower side, and an outer peripheral surface of a lid body has a taper surface matching the taper surface of the receiving frame, and one end side of the lid body. In a manhole in which the lock mechanism is rotatably coupled to the receiving frame and a lock mechanism is provided between the other end side of the lid body and the receiving frame, and a watertight cap member is provided on the other end side of the lid body. A manhole, wherein the manhole is provided and below the cap member, an operating portion of the lock mechanism is provided.
つ受枠側はその蓋体の外周面と一体的に構成されている
袋状の鉤穴が設けられていることを特徴とする請求項１
記載のマンホール。2. A bag-shaped hook hole is provided on the other end side of the lid body, and only the upper portion is opened, and the receiving frame side is integrally formed with the outer peripheral surface of the lid body. Claim 1
The listed manhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4339605A JP3041148B2 (en) | 1992-11-25 | 1992-11-25 | Sealed manhole cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4339605A JP3041148B2 (en) | 1992-11-25 | 1992-11-25 | Sealed manhole cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06158673A true JPH06158673A (en) | 1994-06-07 |
| JP3041148B2 JP3041148B2 (en) | 2000-05-15 |
Family
ID=18329070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4339605A Expired - Lifetime JP3041148B2 (en) | 1992-11-25 | 1992-11-25 | Sealed manhole cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3041148B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688806B2 (en) * | 2001-08-21 | 2004-02-10 | Huan-Chang Kuan | Jump-proof manhole-handhole |
| US7144189B1 (en) | 2002-09-06 | 2006-12-05 | Brad Bongiovanni | Locking cover for wells and underground tanks |
| KR100684463B1 (en) * | 2005-11-10 | 2007-02-22 | 이재덕 | The manhole that the level control is possible |
| JP2014173365A (en) * | 2013-03-11 | 2014-09-22 | Emergency:Kk | Manhole cover device |
| KR200483387Y1 (en) * | 2016-01-05 | 2017-05-08 | 정문식 | Manhole Inner Cover |
-
1992
- 1992-11-25 JP JP4339605A patent/JP3041148B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6688806B2 (en) * | 2001-08-21 | 2004-02-10 | Huan-Chang Kuan | Jump-proof manhole-handhole |
| US7144189B1 (en) | 2002-09-06 | 2006-12-05 | Brad Bongiovanni | Locking cover for wells and underground tanks |
| US7726902B1 (en) | 2002-09-06 | 2010-06-01 | Brad Bongiovanni | Locking cover for wells and underground tanks |
| KR100684463B1 (en) * | 2005-11-10 | 2007-02-22 | 이재덕 | The manhole that the level control is possible |
| JP2014173365A (en) * | 2013-03-11 | 2014-09-22 | Emergency:Kk | Manhole cover device |
| KR200483387Y1 (en) * | 2016-01-05 | 2017-05-08 | 정문식 | Manhole Inner Cover |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3041148B2 (en) | 2000-05-15 |
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