JPH0745643Y2 - Iron lid with frame - Google Patents
Iron lid with frameInfo
- Publication number
- JPH0745643Y2 JPH0745643Y2 JP1990097120U JP9712090U JPH0745643Y2 JP H0745643 Y2 JPH0745643 Y2 JP H0745643Y2 JP 1990097120 U JP1990097120 U JP 1990097120U JP 9712090 U JP9712090 U JP 9712090U JP H0745643 Y2 JPH0745643 Y2 JP H0745643Y2
- Authority
- JP
- Japan
- Prior art keywords
- lid
- frame
- wall
- opening
- lid body
- 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.)
- Expired - Lifetime
Links
Description
【考案の詳細な説明】 (産業上の利用分野) 本考案は2枚の蓋部分が夫々が合わさる辺で接続された
蓋体とこれを支持する枠体とから成る枠付鉄蓋に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a framed iron lid including a lid body in which two lid portions are connected at their respective sides where they meet and a frame body that supports the lid body. is there.
(従来の技術) この種の枠付鉄蓋は、例えばダクタイル鋳鉄等により鋳
造され、消火栓や制水弁その他の機器の設置部位等に使
用されるが、実公昭54-33333号に示されるものは、3角
形状の一対の蓋構成板により、枠体にはまる蓋体を構成
し、各蓋構成板裏面の頂点部又は枠の4隅に設けられた
***部で3点支持される構造を有する。この構造のため
各蓋部分は3点で常に安定に支持されるので、この点で
はがたつきが生じることはない。しかしながら対角線上
で2分されているため接続部分で最も長い辺長を有する
ことになるから、蓋の中央部分にかかる荷重で撓み易
く、これに対抗するため2分線部分の強度を高める構造
を必要とした。また長い辺長から生ずる撓みで両側の支
点に於るずれ量も相対的に大きくなり、そのため摩耗の
進行度合が異なることがあった。なお従来の蓋体の外周
面と枠体の内周面との間には、隙間が設けられ、動き得
るため、自動車の通過などにより横ずれが起り、蓋支点
の摩耗が進み易い問題もあった。(Prior Art) This type of framed iron lid is cast, for example, from ductile cast iron, and is used for the installation site of fire hydrants, water control valves and other equipment. Is a structure in which a pair of triangular lid-constituting plates constitutes a lid that fits in the frame, and three points are supported by the apexes on the back of each lid-constituting plate or the ridges provided at the four corners of the frame. Have. Because of this structure, each lid portion is always supported stably at three points, so rattling does not occur at this point. However, since it is bisected on a diagonal line, it has the longest side length at the connection part, so it is easy to bend under the load applied to the central part of the lid, and in order to counter this, a structure that increases the strength of the bisector line is used. Needed. Further, the amount of deviation at the fulcrums on both sides becomes relatively large due to the bending caused by the long side length, and thus the degree of progress of wear may differ. In addition, since there is a gap between the outer peripheral surface of the conventional lid and the inner peripheral surface of the frame to allow movement, lateral displacement occurs due to passage of an automobile, etc., and there is a problem that the lid fulcrum easily wears. .
これとは別に所謂方形蓋でも、外周を下すぼまりのテー
パ状とし、それに対応するテーパ面を内周に設けた受枠
で受ける構造のものも存在した。ところがこのテーパ受
け型方形蓋は、平受形や3点支持形の方形蓋と異なり、
喰込みにより開蓋しにくくなり易い傾向があった。しか
し、がたつきがないとか、耐久性が良好であるといった
点では前記3点支持蓋よりも優れている。In addition to this, there is also a so-called rectangular lid having a structure in which the outer circumference is tapered with a downward constriction, and a corresponding tapered surface is received by a receiving frame provided on the inner circumference. However, this taper receiving type square lid is different from the flat type and the three point support type square lid.
The bite tended to make it difficult to open the lid. However, it is superior to the three-point support lid in that it has no rattling and has good durability.
(技術的課題) 本考案は前記の事情に鑑みなされたもので、その課題と
するところは所謂方形蓋状の蓋体を枠体にがたなく取付
けられ、喰込みを解除し易くし、摩耗の進行度合を減少
して耐久性を向上することにある。(Technical problem) The present invention has been made in view of the above circumstances, and the problem is that a so-called rectangular lid-shaped lid is attached to the frame without any play, making it easier to release the bite and wear it. Is to improve the durability by reducing the degree of progress.
(技術的手段) 前記課題を解決するため本考案は、平面4角形状を有
し、該形状を2分した2個の蓋部分1、1′が2分線部
2にて接続された蓋体3と、該蓋体で塞がれる開口4を
備えた枠体6とから成り、前記2分線部2は平面長方形
状蓋体3における対角線のように最長部分以外の部位に
設定され、各2分線部2側の面は、蓋上面に対して略直
角に研削加工された壁面7、7′で面接触可能かつ折曲
可能に緩く接続されており、蓋体3は、枠体開口4の上
部より下部が開口内方へ突出するように傾斜した内壁8
に適合する、傾斜した外壁9、9′を外周に有し、これ
ら内壁8と外壁9、9′は共に研削加工され、蓋体3が
前記壁面7、7′の面接触により平面に保たれた状態で
面接触可能に構成するという手段を講じたものである。(Technical Means) In order to solve the above-mentioned problems, the present invention has a lid which has a planar rectangular shape and two lid portions 1 and 1 ′ that divide the shape are connected by a bisecting line portion 2. It is composed of a body 3 and a frame body 6 having an opening 4 which is closed by the lid body, and the bisector 2 is set at a portion other than the longest portion like a diagonal line of the flat rectangular lid body 3, The surface on the side of each bisector 2 is loosely connected so as to be surface-contactable and bendable by wall surfaces 7 and 7'which are ground substantially at right angles to the upper surface of the lid, and the lid body 3 is a frame body. Inner wall 8 inclined so that the lower part of the opening 4 protrudes inward from the upper part
Which has a slanted outer wall 9 and 9 ', which are fitted to the inner wall 8 and outer wall 9 and 9', are ground together so that the lid 3 is kept flat by the surface contact of the wall 7 and 7 '. In this state, the surface contact can be made in the closed state.
(作用) 蓋体3を構成する蓋部分1、1′は平面4角形状の蓋体
3に於る対角線での分割の場合の如く、その蓋体3を2
分する最長部分よりも短い2分線部2で2分されている
ため、蓋中央部にかかる荷重の影響を小さくし、両側の
支点に於るずれ量も従来の所謂3角蓋に比較して減少す
る。各蓋部分1、1′は合わせ部2の研削加工された壁
面7、7′で面接触し、蓋上面の全体が平面的に保たれ
る。(Operation) The lid portions 1 and 1'constituting the lid body 3 are separated from each other by the same manner as in the case of the diagonal division in the lid body 3 having a rectangular shape in the plane.
Since it is bisected by the bisector 2 which is shorter than the longest part to divide, the influence of the load applied to the central part of the lid is reduced, and the amount of deviation at the fulcrums on both sides is also compared to the conventional so-called triangular lid. Decrease. The lid portions 1 and 1'are brought into surface contact with the ground wall surfaces 7 and 7'of the mating portion 2, and the entire top surface of the lid is kept flat.
この状態で、両蓋部分1、1′に設けられている傾斜し
た外壁9、9′が内壁8へ次第に喰込むようになるので
上下方向のがたつきは全く生じなくなる。In this state, the slanted outer walls 9 and 9'provided on both lid portions 1 and 1'become into the inner wall 8 gradually, so that vertical rattling does not occur at all.
他方、開蓋の際は、いずれか一方の蓋部分1、1′をま
ずこじ開けることができ、次いで他方をこじ開け、蓋全
体を折曲げるようにして外すので、過度の喰込みが生じ
ていてもそれを解除するのが容易である。On the other hand, at the time of opening the lid, one of the lid portions 1 and 1'can be first pry open, and then the other can be pry open, and the whole lid is bent and removed, so that even if excessive biting occurs. It is easy to release it.
(実施例) 以下図面を参照して説明する。例示のものは長方形状の
蓋体3とこれに組合わされる長方形状の枠体6とから成
る枠付鉄蓋に係る。(Example) Hereinafter, description will be given with reference to the drawings. The illustrated example relates to a framed iron lid including a rectangular lid body 3 and a rectangular frame body 6 combined with the rectangular lid body 3.
蓋体3は平面長方形状を有し、これをその対角線からず
らせた、より短い辺長の2分線部2で2分し、非3角形
状の蓋部分1、1′を形成している。該2分された各蓋
部分1、1′の斜辺部裏面には補強のため立下り部11、
11′が夫々設けられている。2分線部2の長さが短いの
で、立下り部11、11′の大きさ、強度は従来の3角蓋の
それよりも小さくて良い。各蓋部分1、1′は夫々の立
下り部11、11′に取付けられたボルト12、ナット13によ
り緩く接続され、互いに動き得るが一体のものとして取
扱われる。蓋部分1、1′は夫々の外周部分に沿って、
立下り部11、11′と同様に垂下した立下り枠14、14′を
有し、これは蓋体3が過度に喰い込んだ場合に、枠体6
の開口4の周囲に設けられた支持部5にて受止められ得
る。該支持部5と前記立下り枠14、14′とは第4図に仕
上記号で示すように研削加工された面となっている。The lid body 3 has a planar rectangular shape, and is bisected by a bisector 2 having a shorter side length, which is offset from the diagonal line, to form a non-triangular lid portion 1, 1 '. . On the back surface of the hypotenuse of each of the two divided lid portions 1, 1 ′, a falling portion 11 is provided for reinforcement.
11 'are provided respectively. Since the length of the bisector 2 is short, the size and strength of the falling portions 11 and 11 'may be smaller than that of the conventional triangular lid. Each lid part 1, 1'is loosely connected by bolts 12, nuts 13 mounted on the respective falling parts 11, 11 ', movable with respect to each other but treated as one piece. The lid parts 1, 1'are
Like the falling parts 11 and 11 ', it has hanging falling frames 14 and 14', which, when the lid 3 is excessively bitten into, the frame 6
It can be received by a supporting portion 5 provided around the opening 4. The supporting portion 5 and the falling frames 14 and 14 'are ground surfaces as indicated by finishing symbols in FIG.
両蓋部分1、1′の2分線部2は、蓋上面に対して略直
角に研削加工された壁面7、7′によって接触可能であ
り(第3図仕上記号)、両壁面7、7′より下部の立下
り部11、11′はそれら両壁面7、7′より若干後退して
いて、蓋部分1、1′が僅かな山形にも2分線部2で折
曲がるように設定されている。蓋部分1、1′同士はこ
れと逆つまり谷形にも2分線部2で折曲がることができ
る。この折曲がりにより、蓋体3を枠体6から取外す
際、こじあける作業の容易化を図っている。蓋部分1、
1′の外周面は、下部より上部が外方へ突出するように
傾斜した外壁9、9′をなしており、該外壁9、9′も
研削加工されている(第4図)。The bisectors 2 of both lid portions 1 and 1'can be contacted by wall surfaces 7 and 7'which are ground substantially at right angles to the lid upper surface (finish symbol in FIG. 3). The falling portions 11 and 11 'below ′ are slightly retracted from both wall surfaces 7 and 7 ′, and the lid portions 1 and 1 ′ are set so as to be bent at the bisecting line portion 2 even in a slight mountain shape. ing. The lid portions 1 and 1 ′ can be bent at the bisecting portion 2 in the opposite manner, that is, in a valley shape. Due to this bending, when the lid 3 is detached from the frame 6, the work of prying is facilitated. Lid part 1,
The outer peripheral surface of 1'is formed with outer walls 9, 9'inclined so that the upper part projects outward from the lower part, and the outer walls 9, 9'are also ground (FIG. 4).
枠体6は上述の蓋体3によって塞がれる開口4を有し、
その周囲に蓋体3の前記外壁9、9′を囲む内壁8が形
成されている。この内壁8は上部より下部が開口内方へ
突出するように傾斜した面となっており、この内壁8に
適合する同一傾斜角度で前記外壁9、9′も設けられて
いるものである。ボルト接続で一体化している蓋体3が
枠体6に支持された状態にあるとき、この外壁9、9′
と内壁8とは面接触した状態にあるので、横ずれ力が働
いても蓋体3がずれ動くの余地はない。このような蓋体
3と枠体6の嵌合のために内壁8と外壁9、9′とが夫
々研削加工されているものである。The frame 6 has the opening 4 closed by the lid 3 described above,
An inner wall 8 that surrounds the outer walls 9 and 9'of the lid 3 is formed around it. The inner wall 8 has a surface inclined so that the lower portion projects inward from the upper portion, and the outer walls 9 and 9'are also provided at the same inclination angle that matches the inner wall 8. When the lid body 3 integrated by bolt connection is supported by the frame body 6, the outer walls 9 and 9 '
Since the inner wall 8 and the inner wall 8 are in surface contact with each other, there is no room for the lid 3 to shift even when a lateral shift force is exerted. The inner wall 8 and the outer walls 9 and 9'are ground for fitting the lid 3 and the frame 6 together.
例示の蓋体3は第5図に示すように、比較的対角線dに
近似した2分線部2で2分されているが、第6図に示す
ように矩形に2分することも出来る。さらに第7図に示
すように、4角形の3隅部を含む蓋部分1と1隅部を含
む蓋部分1′の大小2部分に分けること、また第8図に
示すように4角形の長辺の4分の1程の位置で大小二つ
の蓋部分1、1′に分けることも可能である。この場合
小型蓋部分1′の側を開蓋時に先にこじることで開蓋操
作が容易化する。各図中、10は蓋体3を囲む内壁8が形
成された開口上縁、15は蓋体3の夫々の蓋部分1、1′
に形成されたこじり用の切欠、16は同手鉤孔を夫々示
す。As shown in FIG. 5, the illustrated lid body 3 is divided into two parts by the bisector 2 which is relatively close to the diagonal line d, but it can also be divided into a rectangle as shown in FIG. Further, as shown in FIG. 7, it is divided into a large portion 2 and a large portion 2 of a lid portion 1 including one corner portion and a lid portion 1 ′ including one corner portion, and as shown in FIG. It is also possible to divide into two large and small lid portions 1, 1'at a position of about 1/4 of the side. In this case, the lid opening operation is facilitated by prying the small lid portion 1'side first when opening the lid. In each figure, 10 is the upper edge of the opening in which the inner wall 8 surrounding the lid 3 is formed, and 15 is the respective lid portions 1, 1 ′ of the lid 3.
The notches for prying formed in the, and 16 show the hook holes of the same hand, respectively.
(効果) 本考案は以上の如く構成されており、かつ作用するもの
であるから、蓋体3は従来の所謂3角蓋よりも短い2分
線部2で2分され、荷重の影響がより小さく、撓みも少
なく、かつ軽量化が可能となる。本考案の蓋体3は枠体
内壁8と蓋体外壁9、9′との接触により、蓋体3が枠
体6に喰い込んでいるが開蓋作業の際にいずれか一方の
開け易い蓋部分をまずこじ開け、次いで他方の蓋部分を
開くことができるので、喰込みの解除がし易い効果を奏
する。特に蓋体3は傾斜した外壁9、9′で枠体6の傾
斜した内壁8に所謂テーパ嵌合で受支えられ、研削加工
された内壁8に外壁9、9′が喰込んでいるので、横ず
れやがたつきが全くなくなる効果を奏し、かつまた雨
水、土砂の流入を最少限にする。(Effect) Since the present invention is configured and operates as described above, the lid 3 is divided into two parts by the bisector 2 which is shorter than the conventional so-called triangular lid, and the influence of the load is greater. The size is small, the bending is small, and the weight can be reduced. In the lid body 3 of the present invention, the lid body 3 is embedded in the frame body 6 due to the contact between the frame inner wall 8 and the lid outer walls 9, 9 '. Since the portion can be opened first and then the other lid portion can be opened, the effect of easily releasing the bite is obtained. In particular, the lid 3 is supported by the slanted outer walls 9 and 9'on the slanted inner wall 8 of the frame 6 by so-called taper fitting, and the outer wall 9 and 9'is embedded in the ground inner wall 8, It has the effect of eliminating lateral slippage and rattling, and also minimizes the inflow of rainwater and earth and sand.
図面は本考案に係る鉄蓋の実施例に関するもので第1図
は開蓋状態の斜視図、第2図は蓋体の裏面と枠体の上面
をあらわした部分平面図、第3図は蓋部分接続部の断面
図、第4図は部分断面図、第5図、第6図、第7図及び
第8図は2分線の設定例を示す平面図である。 1、1′……蓋部分、2……2分線部、3……蓋体、4
……開口、5……支持部、6……枠体、7、7′……壁
面、8……内壁、9、9′……外壁。The drawings relate to an embodiment of an iron lid according to the present invention. FIG. 1 is a perspective view of an opened lid, FIG. 2 is a partial plan view showing a back surface of a lid and an upper surface of a frame, and FIG. 3 is a lid. FIG. 4 is a cross-sectional view of the partial connection portion, FIG. 4 is a partial cross-sectional view, and FIGS. 5, 6, 7, and 8 are plan views showing setting examples of the bisector. 1, 1 '... Lid part, 2 ... 2 dividing line part, 3 ... Lid body, 4
...... Aperture, 5 ...... Support part, 6 ...... Frame body, 7, 7 '... Wall surface, 8 ... Inner wall, 9, 9' ... Outer wall.
Claims (1)
個の蓋部分1、1′が2分線部2にて接続された蓋体3
と、該蓋体で塞がれる開口4を備えた枠体6とから成
り、前記2分線部2は平面長方形状蓋体3における対角
線のように最長部分以外の部位に設定され、各2分線部
2側の面は、蓋上面に対して略直角に研削加工された壁
面7、7′で面接触可能かつ折曲可能に緩く接続されて
おり、蓋体3は、枠体開口4の上部より下部が開口内方
へ突出するように傾斜した内壁8に適合する、傾斜した
外壁9、9′を外周に有し、これら内壁8と外壁9、
9′は共に研削加工され、蓋体3が前記壁面7、7′の
面接触により平面に保たれた状態で面接触可能に構成さ
れたことを特徴とする枠付鉄蓋。1. A flat quadrangular shape which is divided into two parts.
A lid body 3 in which individual lid portions 1 and 1 ′ are connected by a bisecting line portion 2.
And a frame 6 having an opening 4 which is closed by the lid, and the bisecting line portion 2 is set at a portion other than the longest portion such as a diagonal line of the planar rectangular lid body 3, and each 2 The surface on the side of the dividing line 2 is loosely connected so as to be surface-contactable and bendable by wall surfaces 7 and 7'which are ground substantially at right angles to the lid upper surface, and the lid body 3 is connected to the frame body opening 4 Has inclined outer walls 9 and 9'fitted to the inclined inner wall 8 so that the lower portion thereof protrudes inward from the opening, and these inner and outer walls 9 and 9'are provided.
9'is an iron lid with a frame, which is ground so that the lid body 3 can be surface-contacted while being kept flat by the surface contact of the wall surfaces 7 and 7 '.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990097120U JPH0745643Y2 (en) | 1990-09-14 | 1990-09-14 | Iron lid with frame |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990097120U JPH0745643Y2 (en) | 1990-09-14 | 1990-09-14 | Iron lid with frame |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0453844U JPH0453844U (en) | 1992-05-08 |
JPH0745643Y2 true JPH0745643Y2 (en) | 1995-10-18 |
Family
ID=31837216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990097120U Expired - Lifetime JPH0745643Y2 (en) | 1990-09-14 | 1990-09-14 | Iron lid with frame |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0745643Y2 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5243574Y2 (en) * | 1973-08-09 | 1977-10-03 | ||
JPS5935466U (en) * | 1982-08-26 | 1984-03-05 | 長島鋳物株式会社 | Lid for underground structures |
-
1990
- 1990-09-14 JP JP1990097120U patent/JPH0745643Y2/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
日之出水道株式会社編「新鉄蓋」(昭55−6)日之出水道株式会社P.265−267、275−278 |
Also Published As
Publication number | Publication date |
---|---|
JPH0453844U (en) | 1992-05-08 |
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