JP2009132447A - Simple opening/closing device for manhole - Google Patents

Simple opening/closing device for manhole Download PDF

Info

Publication number
JP2009132447A
JP2009132447A JP2008083248A JP2008083248A JP2009132447A JP 2009132447 A JP2009132447 A JP 2009132447A JP 2008083248 A JP2008083248 A JP 2008083248A JP 2008083248 A JP2008083248 A JP 2008083248A JP 2009132447 A JP2009132447 A JP 2009132447A
Authority
JP
Japan
Prior art keywords
lid
manhole
leg
members
flange
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2008083248A
Other languages
Japanese (ja)
Other versions
JP5068208B2 (en
Inventor
Kazuo Omori
和夫 大森
Yutaka Yaginuma
豊 柳沼
Koji Ota
耕司 太田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ikebukuro Horo Kogyo Co Ltd
NGK Insulators Ltd
Original Assignee
Ikebukuro Horo Kogyo Co Ltd
NGK Insulators Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ikebukuro Horo Kogyo Co Ltd, NGK Insulators Ltd filed Critical Ikebukuro Horo Kogyo Co Ltd
Priority to JP2008083248A priority Critical patent/JP5068208B2/en
Publication of JP2009132447A publication Critical patent/JP2009132447A/en
Application granted granted Critical
Publication of JP5068208B2 publication Critical patent/JP5068208B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide inexpensive opening/closing means for a manhole lid which has an excellent sealing property and an excellent lock property (fixing property), has safety, and enables work to be carried out simply, rapidly, and with reduced labor. <P>SOLUTION: A simple opening/closing device 1 for a manhole includes four leg members 2 fixed to the lid 8 only on the circumferential edge side of the manhole lid 8 and each having a tilted surface 21 which goes down from a central side to the circumferential edge side at an upper surface on the circumferential edge side, four arm members 3, one trunk member 4 having an elevating mechanism for the arm members 3, and hook members 5 which each has a smooth protruded part 52 at a position where the side surface of each hook member on the central side of the lid 8 slides on the tilted surface 21 of the leg member 2 when the lid 8 is opened/closed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、マンホールの蓋を開閉するための装置に関する。   The present invention relates to an apparatus for opening and closing a manhole cover.

医薬、食品、石油、水処理等の産業分野のプラントでは、各種の化学反応層等として大型の容器が使用される。そして、そこには、内部点検用、充填材等の出入用等のために蓋の付いたマンホールが設けられている。このマンホールには、蓋を固定する手段として、大別してボルトナットタイプとクランプタイプのものがあることが知られる。一般に、後者は、開閉し易いが、前者に比すれば、不用意に開いてしまうおそれがあり、構造は複雑になり易い。多くの場合、密閉性、安全性が求められること、及び、廉価であることから、プラントで使用される容器では、マンホールの蓋を固定する手段として、前者が採用される。このタイプのマンホールでは、蓋は、ボルトとナットで、フランジにきつく締め付けられる。   In plants in the industrial field such as medicine, food, oil, and water treatment, large containers are used as various chemical reaction layers. In addition, a manhole with a lid is provided for internal inspection and for entering and exiting fillers. It is known that the manhole is roughly classified into a bolt nut type and a clamp type as means for fixing the lid. In general, the latter is easy to open and close, but compared to the former, the latter may be opened carelessly and the structure tends to be complicated. In many cases, since the sealing and safety are required and the cost is low, the former is adopted as a means for fixing the manhole cover in the container used in the plant. In this type of manhole, the lid is tightened to the flange with bolts and nuts.

しかし、容器内の点検を頻繁に行う場合には、ボルト又はナットを回しこれらを取り外す作業に多大な手間を要することから、蓋の開閉にかかる労力の低減が望まれる。又、プラントにおける容器及びマンホールの数や、マンホールの径が大きい場合にボルトとナットも相当数に及ぶことを考慮すれば、蓋の開閉が半年乃至一年に一度の作業である場合においても、蓋の開閉は、より簡便、迅速に行えることが好ましい。   However, if the inside of the container is frequently inspected, it takes a lot of labor to turn the bolts or nuts and remove them, and therefore it is desired to reduce the labor required to open and close the lid. In addition, considering that the number of containers and manholes in the plant and the number of bolts and nuts when the diameter of the manhole is large, opening and closing of the lid is a work every six months to once a year, It is preferable that the lid can be opened and closed more easily and quickly.

そこで、従来より、特に密閉性、施錠性(固定性)を高めたクランプタイプのマンホールが提案されている(特許文献1〜4を参照)。
特開平7−253497号公報 特開平10−101108号公報 特開2001−354251号公報 特開2004−182318号公報
In view of this, clamp type manholes have been proposed (see Patent Documents 1 to 4) that have particularly improved hermeticity and lockability (fixability).
JP-A-7-253497 JP-A-10-101108 JP 2001-354251 A JP 2004-182318 A

本発明は、上記のような技術背景の下、先行技術と同様に、密閉性、施錠性(固定性)に優れ、安全であり、簡便に、迅速に、少ない労力で作業を行うことが可能な、廉価なマンホールの蓋の開閉手段を提供することを課題とする。研究がなされた結果、以下に示す手段によって、この課題を解決し得ることが見出された。   The present invention is based on the above technical background and, like the prior art, is excellent in hermeticity, lockability (fixability), safe, simple, quick, and capable of performing work with little effort. Another object of the present invention is to provide an inexpensive manhole cover opening and closing means. As a result of research, it was found that this problem can be solved by the following means.

即ち、本発明によれば、マンホールの蓋の表面の側に、蓋の中央の側から周縁の側へ向けて配設され、周縁の側のみにおいて蓋に固定されるとともに、周縁の側の上面に、中央の側から周縁の側へ向けて下る傾斜面を有する、複数の脚部材と、脚部材の上方に、脚部材と組で併設される、複数の腕部材と、蓋の中央に配設されて、複数の脚部材に支持され且つ複数の腕部材を支持するとともに、腕部材の昇降機構を備える、一の胴部材と、腕部材に、軸を介して回転可能に取り付けられるとともに、先端がマンホールのフランジの裏面を係止可能に曲折し、且つ、蓋の中央の側の側面であって蓋の開閉時に脚部材の傾斜面と摺動する位置が滑らかな凸状を呈する、鉤部材と、を具備するマンホール用簡易開閉装置が提供される。   That is, according to the present invention, the manhole is disposed on the surface side of the lid from the center side of the lid toward the peripheral side, and is fixed to the lid only on the peripheral side, and the upper surface on the peripheral side. In addition, a plurality of leg members having inclined surfaces descending from the central side toward the peripheral side, a plurality of arm members provided in pairs with the leg members above the leg members, and a center of the lid It is provided, and is supported by a plurality of leg members and supports a plurality of arm members, and is provided with an arm member elevating mechanism, and is attached to the arm member so as to be rotatable via a shaft, The tip bends so that the back surface of the flange of the manhole can be locked, and the side surface on the center side of the lid and slides with the inclined surface of the leg member when the lid is opened and closed has a smooth convex shape. And a simple opening / closing device for manholes.

脚部材に備わる傾斜面の傾斜角度(水平面に対する角度)は、45°以上であることが好ましい。より好ましい傾斜角度は、55°以上65°以下である。   The inclination angle of the inclined surface provided to the leg member (angle with respect to the horizontal plane) is preferably 45 ° or more. A more preferable inclination angle is not less than 55 ° and not more than 65 °.

本発明に係るマンホール用簡易開閉装置においては、鉤部材が、弾性部材を介して、腕部材に吊持されることが好ましい。即ち、鉤部材は、腕部材に軸を介して取り付けられる他に、弾性部材によっても吊持されていることが好ましい。弾性部材としては、例えば、コイルバネ等のバネを用いることが出来る。   In the simple opening / closing device for manholes according to the present invention, it is preferable that the flange member is suspended from the arm member via the elastic member. That is, it is preferable that the collar member is suspended by an elastic member in addition to being attached to the arm member via the shaft. For example, a spring such as a coil spring can be used as the elastic member.

鉤部材は、腕部材毎に設けられるから、腕部材と同じく、複数、具備される。本発明に係るマンホール用簡易開閉装置においては、脚部材、腕部材、及び鉤部材の数が、4以上であることが好ましい。より好ましい数は4である。この場合において、上記鉤部材の先端に、マンホールのフランジの裏面と接するその先端の位置を調整可能な、位置決め機構を備えることが好ましい。   Since the heel member is provided for each arm member, a plurality of heel members are provided in the same manner as the arm member. In the simple opening / closing device for manholes according to the present invention, the number of leg members, arm members, and heel members is preferably 4 or more. A more preferred number is 4. In this case, it is preferable to provide a positioning mechanism that can adjust the position of the front end of the flange member in contact with the rear surface of the flange of the manhole.

本発明に係るマンホール用簡易開閉装置においては、昇降機構を不動作にする施錠機構を備えることが好ましい。   In the simple opening / closing device for manholes according to the present invention, it is preferable to include a locking mechanism that disables the lifting mechanism.

本発明に係るマンホール用簡易開閉装置においては、鉤部材を腕部材に取り付ける軸が、傾斜面より、蓋の中央の側に位置して配設されることが好ましい。   In the simple opening / closing device for manholes according to the present invention, it is preferable that the shaft for attaching the collar member to the arm member is disposed on the center side of the lid from the inclined surface.

本発明に係るマンホール用簡易開閉装置は、胴部材に備わる昇降機構によって、腕部材を下げると、鉤部材がフランジの裏面を押圧する力が消失し、マンホールのフランジから蓋を外すことが可能になる。他方、腕部材を上げると、鉤部材がフランジの裏面を押圧し、マンホールのフランジに蓋が固定される。このように、本発明に係るマンホール用簡易開閉装置によれば、腕部材を昇降させるという少ない労力で、簡便に、迅速に、マンホールの蓋を開閉させることが可能である。   The simple opening / closing device for manholes according to the present invention can remove the lid from the flange of the manhole when the arm member is lowered by the elevating mechanism provided on the trunk member, and the force with which the flange member presses the back surface of the flange disappears. Become. On the other hand, when the arm member is raised, the flange member presses the back surface of the flange, and the lid is fixed to the flange of the manhole. As described above, according to the simple opening / closing device for manholes according to the present invention, the manhole cover can be opened and closed easily and quickly with a small effort of lifting and lowering the arm member.

本発明に係るマンホール用簡易開閉装置は、クランプタイプであるが、胴部材、脚部材、腕部材、及び鉤部材からなる簡素なものである。梃子の作用を発現させるような複雑な機構を備えていない。従って、壊れ難く、廉価に作製し得るものといえる。   The simple opening / closing device for manholes according to the present invention is a clamp type, but is a simple one comprising a trunk member, leg members, arm members, and a collar member. It does not have a complicated mechanism to express the action of the eggplant. Therefore, it can be said that it is hard to break and can be manufactured inexpensively.

本発明に係るマンホール用簡易開閉装置では、腕部材を下げると、それに軸を介して回転可能に取り付けられた鉤部材も下がって、上記の通りフランジの裏面を押圧する力が消失するとともに、鉤部材の蓋の中央の側の側面であって滑らかな凸状を呈する部分が、脚部材の傾斜面を摺動して移動し、この脚部材の傾斜面で押されて、回転可能な鉤部材は、外側に自然に開く。従って、本発明に係るマンホール用簡易開閉装置は、蓋に固定されるものであるが、蓋を開閉させるにあたり、障害にならず、円滑にマンホールの蓋を開閉させることが可能である。   In the simple opening / closing device for manhole according to the present invention, when the arm member is lowered, the collar member rotatably attached to the arm member also descends, and the force for pressing the back surface of the flange disappears as described above. The side surface of the center side of the cover of the member, which has a smooth convex shape, slides and moves on the inclined surface of the leg member, and is pressed by the inclined surface of the leg member so as to be rotatable. Opens naturally to the outside. Therefore, the simple opening / closing device for manholes according to the present invention is fixed to the lid, but when opening / closing the lid, it is possible to smoothly open / close the manhole lid without causing an obstacle.

本発明に係るマンホール用簡易開閉装置は、蓋の周縁の側のみにおいて脚部材が蓋に固定されており、蓋の中央に固定されていない。他にマンホールの蓋及びフランジに固定される部分もない。マンホールのフランジに蓋が固定されるときにおいて、力がかかるのは、蓋の周縁の側において、鉤部の曲折した先端と、蓋に固定された脚部材と、の間だけである。従って、蓋が変形するおそれはなく、密閉性に優れ、安全である。   In the simple opening / closing device for manholes according to the present invention, the leg member is fixed to the lid only on the peripheral side of the lid, and is not fixed to the center of the lid. There are no other parts fixed to the manhole cover and flange. When the lid is fixed to the flange of the manhole, the force is applied only between the bent tip of the collar and the leg member fixed to the lid on the peripheral edge side of the lid. Therefore, there is no possibility that the lid is deformed, and the lid is excellent in sealing performance and safe.

本発明に係るマンホール用簡易開閉装置は、その好ましい態様において、脚部材、腕部材、及び鉤部材の数が、4以上であるので、3以下の場合に比して、鉤部材がフランジの裏面を押圧する力、あるいはそのために胴部材に備わる昇降機構を操作する力は、少なくて済む。又、マンホールの蓋及びフランジが、円形ではない場合、例えば楕円形、四角形等の場合に、3以下の場合に比して、マンホールのフランジに蓋を確りと固定し易い。   In a preferred embodiment of the simple opening / closing device for manholes according to the present invention, the number of leg members, arm members, and heel members is 4 or more, so that the heel member is the back surface of the flange as compared with the case of 3 or less. The force for pressing the lever or the force for operating the lifting mechanism provided for the body member for that purpose can be reduced. Further, when the manhole cover and the flange are not circular, for example, in the case of an ellipse, a quadrangle, etc., it is easier to securely fix the cover to the manhole flange than in the case of 3 or less.

そして、脚部材、腕部材、及び鉤部材の数が4以上の場合には、3つで位置決めがなされてしまい、1つが遊んでしまう(はたらかない)おそれがあるが、本発明に係るマンホール用簡易開閉装置では、その好ましい態様において、鉤部材の先端に、マンホールのフランジの裏面と接するその先端の位置を調整可能な、位置決め機構を備えるので、4以上の脚部材、腕部材、及び鉤部材を、全て、マンホールのフランジに蓋を固定させるべく、はたらかせることが出来る。   When the number of leg members, arm members, and heel members is four or more, there is a possibility that positioning will be performed with three, and one may play (do not work), but the manhole according to the present invention. In the preferred opening / closing device for use, in the preferred embodiment, the tip of the collar member is provided with a positioning mechanism that can adjust the position of the tip of the collar member in contact with the back surface of the flange of the manhole. All members can be worked to secure the lid to the flange of the manhole.

本発明に係るマンホール用簡易開閉装置は、その好ましい態様において、昇降機構を不動作にする施錠機構を備えているので、意図せず、腕部材が下がり、鉤部材が下がることがない。従って、鉤部の曲折した先端と、蓋に固定された脚部材と、で蓋とフランジとは確りと固定され、不用意に蓋が開いてしまうおそれはなく、施錠性(固定性)に優れ、安全である。   In the preferable mode, the simple opening / closing device for manholes according to the present invention includes a locking mechanism that disables the elevating mechanism. Therefore, the arm member is not unintentionally lowered and the eaves member is not lowered. Therefore, the lid and flange are firmly fixed by the bent tip of the buttocks and the leg member fixed to the lid, and there is no risk that the lid will open carelessly, and it has excellent lockability (fixability). , Safe.

本発明に係るマンホール用簡易開閉装置は、その好ましい態様において、鉤部材を腕部材に取り付ける軸が、傾斜面より、蓋の中央の側に位置して配設されるので、鉤部材の蓋の中央の側の側面であって滑らかな凸状を呈する部分が、脚部材の傾斜面を、より少ない抵抗で、摺動して移動する。その結果、脚部材の傾斜面の摩耗が低減されるとともに、胴部材に備わる昇降機構に要する力が低減される。   In a preferred embodiment of the simple opening / closing device for manholes according to the present invention, the shaft for attaching the collar member to the arm member is disposed on the center side of the lid from the inclined surface. A portion that is a side surface on the center side and has a smooth convex shape slides and moves on the inclined surface of the leg member with less resistance. As a result, wear on the inclined surface of the leg member is reduced, and the force required for the lifting mechanism provided in the trunk member is reduced.

以下、本発明について、適宜、図面を参酌しながら、実施形態を説明するが、本発明はこれらに限定されて解釈されるべきものではない。本発明の要旨を損なわない範囲で、当業者の知識に基づいて、種々の変更、修正、改良、置換を加え得るものである。例えば、図面は、好適な本発明の実施形態を表すものであるが、本発明は図面に表される態様や図面に示される情報により制限されない。本発明を実施し又は検証する上では、本明細書中に記述されたものと同様の手段若しくは均等な手段が適用され得るが、好適な手段は、以下に記述される手段である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings as appropriate, but the present invention should not be construed as being limited thereto. Various changes, modifications, improvements, and substitutions can be added based on the knowledge of those skilled in the art without departing from the scope of the present invention. For example, the drawings show preferred embodiments of the present invention, but the present invention is not limited by the modes shown in the drawings or the information shown in the drawings. In practicing or verifying the present invention, the same means as described in this specification or equivalent means can be applied, but preferred means are those described below.

先ず、本発明に係るマンホール用簡易開閉装置の構成要素について説明する。図1〜図3は、本発明に係るマンホール用簡易開閉装置の一の実施形態を示す図であり、マンホールの蓋及びフランジとともに表した図である。図1は、平面図であり、図2は図1におけるAA断面を表す矢視図であり、図3は図1におけるBB断面を表す矢視図である。   First, components of the simple opening / closing device for manholes according to the present invention will be described. 1-3 is a figure which shows one Embodiment of the simple opening / closing apparatus for manholes which concerns on this invention, and is the figure represented with the cover and flange of the manhole. 1 is a plan view, FIG. 2 is an arrow view showing an AA section in FIG. 1, and FIG. 3 is an arrow view showing a BB section in FIG.

図1〜図3に示されるマンホール用簡易開閉装置1は、4つの脚部材2、4つの腕部材3、4つの鉤部材5、及び1つの胴部材4を具備する。本明細書では、本発明に係るマンホール用簡易開閉装置の各部分の名称につき、人間の各部分の名称を模して付している。特に、図2において、脚部材2が脚であり、腕部材3が腕であり、鉤部材5が手であり、胴部材4が胴であり、人間が股を広げて、踏ん張っている様子を思い浮かべると、本発明に係るマンホール用簡易開閉装置を理解し易い。尚、リフター7は、容器のマンホール以外の部分に固定されて、蓋8を持ち上げ得る機器である(図3を参照)。   A simple manhole opening / closing device 1 shown in FIGS. 1 to 3 includes four leg members 2, four arm members 3, four flange members 5, and one trunk member 4. In this specification, the names of the respective parts of the human are simplified and attached to the names of the parts of the simple opening / closing device for manholes according to the present invention. In particular, in FIG. 2, the leg member 2 is a leg, the arm member 3 is an arm, the heel member 5 is a hand, the torso member 4 is a torso, and a person is standing with his crotch open. It is easy to understand the simple opening / closing device for manholes according to the present invention. The lifter 7 is a device that is fixed to a portion of the container other than the manhole and can lift the lid 8 (see FIG. 3).

脚部材2は、それぞれ、マンホールの蓋8の表面の側に、蓋8の中央の側から周縁の側へ向けて放射状に配設されている。脚部材2は、蓋8の周縁の側のみにおいて蓋8に固定され、中央の側では蓋8に接してはいない。そして、脚部材2は、その上面であって蓋8の周縁の側に、傾斜面21を有している。この傾斜面21は、蓋8の中央の側から周縁の側へ向けて下るように傾斜している面である。   The leg members 2 are respectively arranged radially on the surface side of the manhole cover 8 from the center side of the cover 8 toward the peripheral side. The leg member 2 is fixed to the lid 8 only on the peripheral side of the lid 8 and is not in contact with the lid 8 on the center side. The leg member 2 has an inclined surface 21 on the upper surface thereof and on the peripheral edge side of the lid 8. The inclined surface 21 is a surface inclined so as to descend from the center side of the lid 8 toward the peripheral side.

胴部材4は、蓋8の中央に配設される。胴部材4は、肩部41、骨部42、及び腰部43を備え、腰部43が4つの脚部材2によって固定され支持されている。一方、肩部41は4つの腕部材3を固定し支持している。   The body member 4 is disposed at the center of the lid 8. The body member 4 includes a shoulder portion 41, a bone portion 42, and a waist portion 43, and the waist portion 43 is fixed and supported by the four leg members 2. On the other hand, the shoulder 41 fixes and supports the four arm members 3.

骨部42と肩部41とは、ボルト(骨部42)とナット(肩部41)の関係にある。ねじ溝がきられた骨部42(ボルト)は、腰部43に設けられた軸受けによって回転可能に設けられており、骨部42の頂に設けられたハンドル44を回して回転させることが出来る。骨部42を回転させると、骨部のねじ溝に対応したねじ溝が備わる肩部41(ナット)も、回転しようとするが、肩部41に固定された腕部材3のストッパ32で回転が止められ、腕部材3及び肩部41は、回転せずに、骨部42を上下に移動するようになる。これが胴部材4に備わる腕部材3の昇降機構である。尚、骨部42を回転させるための軸受けは、2以上設けることが好ましい。例えば、この軸受けは、腰部43において、骨部42の最下部に当たる位置と、その少し上側で骨部42を挟み込む位置に、設けることが出来る。このように軸受けを2以上設けると、骨部42を下方向へ押さえ込む荷重と上方へ引き上げる荷重の両方の荷重を受け止められるので、骨部42の軸振れが防止され、安定した骨部42の回転が実現される。   The bone part 42 and the shoulder part 41 are in a relationship of a bolt (bone part 42) and a nut (shoulder part 41). The bone portion 42 (bolt) having a thread groove is rotatably provided by a bearing provided on the waist portion 43, and a handle 44 provided on the top of the bone portion 42 can be rotated to rotate. When the bone portion 42 is rotated, the shoulder portion 41 (nut) provided with a screw groove corresponding to the screw groove of the bone portion also tries to rotate, but is rotated by the stopper 32 of the arm member 3 fixed to the shoulder portion 41. The arm member 3 and the shoulder portion 41 move up and down the bone portion 42 without rotating. This is the lifting mechanism of the arm member 3 provided in the trunk member 4. Two or more bearings for rotating the bone part 42 are preferably provided. For example, this bearing can be provided at a position where the lower end of the bone portion 42 hits the lower portion of the waist 43 and a position where the bone portion 42 is sandwiched slightly above. If two or more bearings are provided in this way, both the load for pressing the bone part 42 downward and the load for lifting the bone part 42 can be received, so that the shaft part of the bone part 42 can be prevented from swinging and the bone part 42 can be rotated stably. Is realized.

既述のように、昇降機構によって、腕部材を下げると、鉤部材がフランジの裏面を押圧する力が消失し、マンホールのフランジから蓋を外すことが可能になり、腕部材を上げると、鉤部材がフランジの裏面を押圧し、マンホールのフランジに蓋が固定されるので、昇降機構の役割は重要である。マンホールのフランジに蓋を確りと固定するためには、骨部42(ボルト)のねじ溝のピッチは、骨部42(ボルト)の直径の15%以上20%以下であることが好ましい。尚、ロックピン45(施錠機構)によって骨部42の回転を止めることにより、この昇降機構を容易に不動作にすることが可能である。   As described above, when the arm member is lowered by the elevating mechanism, the force by which the collar member presses the back surface of the flange disappears, and it becomes possible to remove the lid from the flange of the manhole. Since the member presses the back surface of the flange and the lid is fixed to the flange of the manhole, the role of the lifting mechanism is important. In order to securely fix the lid to the flange of the manhole, the pitch of the thread groove of the bone part 42 (bolt) is preferably 15% or more and 20% or less of the diameter of the bone part 42 (bolt). In addition, by stopping the rotation of the bone part 42 by the lock pin 45 (locking mechanism), it is possible to easily disable the lifting mechanism.

又、ハンドル44を回す回転トルク(締付トルク)を管理することが好ましい。そして、そのためには、骨部42を面取りすることが望ましい。トルク管理のためのトルクレンチが掛け易くなるからである。   Moreover, it is preferable to manage the rotational torque (tightening torque) for turning the handle 44. For that purpose, it is desirable to chamfer the bone part 42. This is because a torque wrench for torque management can be easily applied.

腕部材3は、脚部材2の上方に、脚部材2と、組で併設されている。そして、腕部材3の先端には(蓋8の周縁の側には)、鉤部材5が、軸31を介して回転可能に取り付けられている。鉤部材5と腕部材3との間には、バネ33が備わる。このバネ33は、マンホールが水平に設けられている場合には、特段に機能しないが、マンホールが傾斜して設けられている場合に、鉤部材5が自重で開きすぎることを防止する。   The arm member 3 is provided side by side with the leg member 2 above the leg member 2. And the collar member 5 is attached to the front-end | tip of the arm member 3 (on the peripheral edge side of the lid | cover 8) via the axis | shaft 31 so that rotation is possible. A spring 33 is provided between the collar member 5 and the arm member 3. The spring 33 does not function particularly when the manhole is provided horizontally, but prevents the eaves member 5 from opening too much by its own weight when the manhole is provided inclined.

鉤部材5の先端には、マンホールのフランジ9の裏面を係止可能に曲折した係止部51が備わり、鉤部材5における蓋8の中央の側の側面には凸状部52が備わる。この凸状部52は、蓋8の開閉時に、脚部材2の傾斜面21と摺動するものであり、そうなるような位置に、滑らかな形状で設けられている。又、鉤部材5の先端には、位置決め機構53を備える。この位置決め機構53は、鉤部材5の先端に固定されたナットと、それに対応したボルトで構成することが出来る。ボルトを回すことによって、容易に、マンホールのフランジ9の裏面と接する鉤部材5の先端の位置を、調整することが可能である。   At the front end of the flange member 5, there is provided a locking portion 51 that is bent so that the back surface of the flange 9 of the manhole can be locked, and a convex portion 52 is provided on the side surface of the lid member 5 on the center side. The convex portion 52 slides on the inclined surface 21 of the leg member 2 when the lid 8 is opened and closed, and is provided in a smooth shape at such a position. Further, a positioning mechanism 53 is provided at the tip of the collar member 5. The positioning mechanism 53 can be constituted by a nut fixed to the tip of the flange member 5 and a bolt corresponding to the nut. By turning the bolt, it is possible to easily adjust the position of the tip of the flange member 5 that contacts the back surface of the flange 9 of the manhole.

図4は、本発明に係るマンホール用簡易開閉装置の他の実施形態を示す図であり、既述の図2に対応する図である。図4に示されるマンホール用簡易開閉装置は、図2に示されるマンホール用簡易開閉装置1とは、鉤部材5を腕部材3に取り付ける軸31が、傾斜面21より、蓋8の中央の側に位置して配設される点で異なる。このような態様によれば、凸状部52が、脚部材2の傾斜面21を、より滑らかに摺動して移動するようになるので、傾斜面21が摩耗し難くなり、且つ、ハンドル44を回す力も少なくて済む。   FIG. 4 is a view showing another embodiment of the simple opening / closing device for manholes according to the present invention, and corresponds to FIG. 2 described above. The manhole simple opening / closing device shown in FIG. 4 is different from the manhole simple opening / closing device 1 shown in FIG. 2 in that the shaft 31 for attaching the collar member 5 to the arm member 3 is located on the center side of the lid 8 from the inclined surface 21. It is different in that it is located at the position. According to such an aspect, since the convex part 52 slides and moves more smoothly on the inclined surface 21 of the leg member 2, the inclined surface 21 is less likely to be worn and the handle 44. The power to turn is small.

次に、本発明に係るマンホール用簡易開閉装置の使用方法(動作)について、図1〜図3(特に図2)を参照して、説明する。本発明に係るマンホール用簡易開閉装置の操作は、マンホールの蓋8に固定した後は、ハンドル44を回すだけである。   Next, the usage method (operation | movement) of the simple opening / closing apparatus for manholes which concerns on this invention is demonstrated with reference to FIGS. 1-3 (especially FIG. 2). The manhole simple opening / closing device according to the present invention is operated by simply turning the handle 44 after being fixed to the manhole cover 8.

先ず、蓋8が閉じた状態から、ハンドル44を一の方向に回すと、骨部42が回転し、他方、肩部41は回転せず、下がり、それとともに腕部材3も下がる。そうすると、鉤部材5も下がり、鉤部材5がフランジ9の裏面を押圧する力が消失し、併せて、凸状部52が傾斜面21に当接しつつ摺動し、鉤部材5を外側に開かせる。これで、蓋8は容易に開き得る状態になっている。後は、リフター7を使用して、現に、蓋8を開けばよい。   First, when the handle 44 is turned in one direction from the state in which the lid 8 is closed, the bone portion 42 is rotated, while the shoulder portion 41 is not rotated but lowered, and the arm member 3 is also lowered. Then, the collar member 5 is also lowered, and the force with which the collar member 5 presses the back surface of the flange 9 disappears. At the same time, the convex portion 52 slides while coming into contact with the inclined surface 21 to open the collar member 5 outward. Make it. The lid 8 is now ready to open. After that, the lid 8 is actually opened using the lifter 7.

次に、蓋8が開き得る状態から、ハンドル44を他の方向に回すと、骨部42が回転し、他方、肩部41は回転せず、上がり、それとともに腕部材3も上がる。そうすると、凸状部52が摺動して傾斜面21に当接しなくなり、鉤部材5を外側に開かせる力ははたらかなくなる。そうすると、鉤部材5は、自重によって、その係止部51がフランジ9の裏面と対面する位置に戻る。併せて、鉤部材5も上がるので、鉤部材5がフランジ9の裏面を押圧する力が発生し、蓋8は、この力によって、閉じて、開かない状態になる。後は、ロックピン45を操作して、ハンドル44(骨部42)の回転を止めておけばよい。   Next, when the handle 44 is turned in the other direction from the state in which the lid 8 can be opened, the bone portion 42 is rotated, while the shoulder portion 41 is not rotated but is raised, and the arm member 3 is also raised. If it does so, the convex-shaped part 52 will not slide and contact | abut on the inclined surface 21, and the force which opens the collar member 5 outside will not work. Then, the hook member 5 returns to the position where the locking portion 51 faces the back surface of the flange 9 by its own weight. At the same time, the eaves member 5 is also raised, so that a force that the eaves member 5 presses the back surface of the flange 9 is generated, and the lid 8 is closed and not opened by this force. Thereafter, the lock pin 45 may be operated to stop the rotation of the handle 44 (bone part 42).

次に、本発明に係るマンホール用簡易開閉装置の作製方法について説明する。本発明に係るマンホール用簡易開閉装置は、対象となるマンホールの形状、大きさに合わせて、設計し、作製される。鋼、ステンレス、アルミニウム合金等の金属材料を加工するとともに、市販されている軸受け、ボルト、ナット、バネ等の材料を利用して、組み立てることによって、作製することが可能である。使用時には、マンホールの蓋に固定することが必要である。   Next, the manufacturing method of the simple opening / closing apparatus for manholes based on this invention is demonstrated. The simple opening / closing device for manholes according to the present invention is designed and manufactured according to the shape and size of the target manhole. It can be manufactured by processing metal materials such as steel, stainless steel, and aluminum alloy and assembling them using commercially available materials such as bearings, bolts, nuts, and springs. In use, it is necessary to fix to the manhole cover.

本発明に係るマンホール用簡易開閉装置は、あらゆるマンホールについて、蓋を開閉させる手段として利用することが出来る。特に、医薬、食品、石油、水処理等の産業分野のプラントで使用される容器のマンホールの蓋を開閉させる手段として、好適に利用される。   The simple opening / closing device for manholes according to the present invention can be used as means for opening and closing the lid for all manholes. In particular, it is preferably used as a means for opening and closing a manhole cover of a container used in a plant in an industrial field such as medicine, food, oil, and water treatment.

本発明に係るマンホール用簡易開閉装置の一の実施形態を示す図であり、マンホールの蓋及びフランジとともに表した平面図である。It is a figure which shows one Embodiment of the simple opening / closing apparatus for manholes which concerns on this invention, and is the top view represented with the cover and flange of the manhole. 図1におけるAA断面を表す矢視図である。It is an arrow view showing the AA cross section in FIG. 図1におけるBB断面を表す矢視図である。It is an arrow line view showing the BB cross section in FIG. 本発明に係るマンホール用簡易開閉装置の他の実施形態を示す図であり、マンホールの蓋及びフランジとともに表した平面図である。It is a figure which shows other embodiment of the simple opening / closing apparatus for manholes which concerns on this invention, and is the top view represented with the cover and flange of the manhole.

符号の説明Explanation of symbols

1:マンホール用簡易開閉装置、2:脚部材、3:腕部材、4:胴部材、5:鉤部材、8:蓋、9:フランジ、21:傾斜面、52:凸状部。 1: Simple opening / closing device for manhole, 2: leg member, 3: arm member, 4: trunk member, 5: flange member, 8: lid, 9: flange, 21: inclined surface, 52: convex portion.

Claims (6)

マンホールの蓋の表面の側に、前記蓋の中央の側から周縁の側へ向けて配設され、前記周縁の側のみにおいて前記蓋に固定されるとともに、前記周縁の側の上面に、中央の側から周縁の側へ向けて下る傾斜面を有する、複数の脚部材と、
前記脚部材の上方に、脚部材と組で併設される、複数の腕部材と、
前記蓋の中央に配設されて、前記複数の脚部材に支持され且つ前記複数の腕部材を支持するとともに、前記腕部材の昇降機構を備える、一の胴部材と、
前記腕部材に、軸を介して回転可能に取り付けられるとともに、先端がマンホールのフランジの裏面を係止可能に曲折し、且つ、前記蓋の中央の側の側面であって蓋の開閉時に前記脚部材の傾斜面と摺動する位置が滑らかな凸状を呈する、鉤部材と、
を具備するマンホール用簡易開閉装置。
On the surface side of the lid of the manhole, it is arranged from the central side of the lid toward the peripheral side, and is fixed to the lid only on the peripheral side, and on the upper surface of the peripheral side, A plurality of leg members having inclined surfaces that descend from the side toward the peripheral side;
Above the leg member, a plurality of arm members provided in a set with the leg member; and
One trunk member disposed in the center of the lid, supported by the plurality of leg members and supporting the plurality of arm members, and comprising a lifting mechanism for the arm members;
The arm member is rotatably attached to the arm member via a shaft, the tip is bent so that the back surface of the flange of the manhole can be locked, and the leg is a side surface on the center side of the lid, and the leg is opened and closed. A scissors member that has a smooth convex shape at a position sliding with the inclined surface of the member;
A simple opening / closing device for manholes.
前記鉤部材が、弾性部材を介して、前記腕部材に吊持される請求項1に記載のマンホール用簡易開閉装置。   The simple opening / closing device for manholes according to claim 1, wherein the flange member is suspended from the arm member via an elastic member. 前記脚部材、腕部材、及び鉤部材の数が、4以上である請求項1又は2に記載のマンホール用簡易開閉装置。   The simple opening / closing device for manholes according to claim 1 or 2, wherein the number of the leg members, arm members, and heel members is four or more. 前記鉤部材の先端に、マンホールのフランジの裏面と接する前記先端の位置を調整可能な、位置決め機構を備える請求項3に記載のマンホール用簡易開閉装置。   The simple opening / closing apparatus for manholes of Claim 3 provided with the positioning mechanism which can adjust the position of the said front-end | tip which contact | connects the back surface of the flange of a manhole at the front-end | tip of the said collar member. 前記昇降機構を不動作にする施錠機構を備える請求項1〜4の何れか一項に記載のマンホール用簡易開閉装置。   The simple opening / closing apparatus for manholes as described in any one of Claims 1-4 provided with the locking mechanism which makes the said raising / lowering mechanism non-operation. 鉤部材を腕部材に取り付ける前記軸が、前記傾斜面より、前記蓋の中央の側に位置して配設される請求項1〜5の何れか一項に記載のマンホール用簡易開閉装置。   The simple opening / closing device for manholes according to any one of claims 1 to 5, wherein the shaft for attaching the flange member to the arm member is disposed at a position closer to the center of the lid than the inclined surface.
JP2008083248A 2007-11-05 2008-03-27 Simple opening and closing device for manhole Active JP5068208B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008083248A JP5068208B2 (en) 2007-11-05 2008-03-27 Simple opening and closing device for manhole

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007287542 2007-11-05
JP2007287542 2007-11-05
JP2008083248A JP5068208B2 (en) 2007-11-05 2008-03-27 Simple opening and closing device for manhole

Publications (2)

Publication Number Publication Date
JP2009132447A true JP2009132447A (en) 2009-06-18
JP5068208B2 JP5068208B2 (en) 2012-11-07

Family

ID=40864754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008083248A Active JP5068208B2 (en) 2007-11-05 2008-03-27 Simple opening and closing device for manhole

Country Status (1)

Country Link
JP (1) JP5068208B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013139318A1 (en) * 2012-03-17 2013-09-26 Guardia Turnavision UG (haftungsbeschränkt) Safety cross for securing temporary openings
WO2016004378A1 (en) 2014-07-03 2016-01-07 Baier Marine Company, Inc. Manway cover
CN106226091A (en) * 2016-07-21 2016-12-14 浙江吉利控股集团有限公司 A kind of air-cushion inflator device for detecting performance
KR101924373B1 (en) 2017-04-04 2018-12-03 이창남 Open and closing device for storage vessel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10101108A (en) * 1996-10-02 1998-04-21 Chikamitsu Kawakami Lock mechanism of lid
JP2001354251A (en) * 2000-06-13 2001-12-25 Chikamitsu Kawakami Locking mechanism of lid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10101108A (en) * 1996-10-02 1998-04-21 Chikamitsu Kawakami Lock mechanism of lid
JP2001354251A (en) * 2000-06-13 2001-12-25 Chikamitsu Kawakami Locking mechanism of lid

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013139318A1 (en) * 2012-03-17 2013-09-26 Guardia Turnavision UG (haftungsbeschränkt) Safety cross for securing temporary openings
WO2016004378A1 (en) 2014-07-03 2016-01-07 Baier Marine Company, Inc. Manway cover
KR20170026589A (en) * 2014-07-03 2017-03-08 베이어 마린 컴퍼니 인코포레이티드 Manway cover
EP3164546A4 (en) * 2014-07-03 2018-02-21 Baier Marine Company, Inc. Manway cover
KR102241157B1 (en) * 2014-07-03 2021-04-16 베이어 마린 컴퍼니 인코포레이티드 Manway cover
CN106226091A (en) * 2016-07-21 2016-12-14 浙江吉利控股集团有限公司 A kind of air-cushion inflator device for detecting performance
KR101924373B1 (en) 2017-04-04 2018-12-03 이창남 Open and closing device for storage vessel

Also Published As

Publication number Publication date
JP5068208B2 (en) 2012-11-07

Similar Documents

Publication Publication Date Title
JP5068208B2 (en) Simple opening and closing device for manhole
US9188151B2 (en) Eye bolt
CN105339235B (en) Transfer
JP2007229137A (en) Pressure cooker
EP3058140B1 (en) Cover of traps or manholes equipped with a mechanism for lifting and horizontally translating the cover
CN105982412A (en) Installation construction of handle
US7789543B2 (en) Handle for light fixture
CN206502541U (en) Crane support automatic turning device
CN205521454U (en) A anchor clamps that is used for automatic dismouting container lockpin
JP2007523302A5 (en)
JP2011087732A (en) Bed
CN207363396U (en) Knob assembly in a kind of
JP2010048377A (en) Opening/closing type eye bolt
JP7319497B2 (en) Steel plate holding device
KR20120025748A (en) Sliding hatch cover and opening method
US3139268A (en) Ratchet lever hoist
CN209557684U (en) A kind of laborsaving light and handy wafer type butterfly valve
KR20090001211U (en) Apparatus for fastening a heavy bolt
KR20110081410A (en) Cooking container
US20120134773A1 (en) Lifting clamp
CN209235763U (en) Connection structure and cooking appliance
RU2344236C1 (en) Hatch lid opening device for inspection pit
US20050198838A1 (en) Manual can opener with crank handle
KR101256020B1 (en) Moving device of manhole cover for opening and shutting flank of tank
CN205915350U (en) Manipulator

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20101111

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120717

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120724

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120814

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150824

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Ref document number: 5068208

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350