JP2004027769A

JP2004027769A - Rising/falling gate

Info

Publication number: JP2004027769A
Application number: JP2002189496A
Authority: JP
Inventors: Akio Iida; 飯田　章雄; Yoshio Iida; 飯田　祥雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-28
Filing date: 2002-06-28
Publication date: 2004-01-29
Anticipated expiration: 2022-06-28
Also published as: JP4281942B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steel-made rising/falling gate capable of preventing an accident in which flat plate-like watertight rubber on a side face of a door body causes large bending deformation and a tip part is pulled into a clearance between a side end part of the steel-made door body and side face door stop hardware and is damaged when it rises or falls. <P>SOLUTION: In this rising/falling gate for performing dam-up or discharge of flowing water due to rising or falling of the steel-made door body having the center of rotation on a water way bottom, cross sectional shape of a part in contact with the side face door stop hardware at a tip of the flat plate-like watertight rubber forming watertightness of a side face of the gate by protruding from a side end part of the steel-made door body and coming into contact with a surface of the side face door stop hardware is finished into a semicircular shape. Reinforcing fibers are arranged in U shape on an inner side along outer shape surface on a crossing face of the flat plate-like watertight rubber. Side face watertight rubber is provided to reinforce so that the tip part of the flat plate-like watertight rubber is not pulled into the clearance between the side end part of the steel-made door body and the side face door stop hardware and is not damaged due to friction force with a surface of the side face door stop hardware when it rises and falls. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】この発明は、水路底に回動自由に固定された鋼製扉体が起立すれば流水を堰上げ、倒伏すれば放流するよう機能する鋼製の起伏ゲートに関するものである。
【０００２】
【従来の技術】鋼製の起伏ゲートは、水路底に固定された水平な回転中心によって、鋼製扉体が起立または倒伏するものであり、鋼製扉体は長方形に作られている。したがって、図５に示すように鋼製扉体４３の側端部は鉛直な平面に沿って移動する。このため、鋼製扉体４３の側部の水密を形成するために側面戸当金物４４は平滑な平面のステンレス鋼を張り、これに常に接触するよう鋼製扉体４３の側端部から平板状の水密ゴム４１を突き出す構造が採用されてきた。
【０００３】
【発明が解決しようとする課題】このような構造の側面水密部を備えた鋼製の起伏ゲートにあっては、起立または倒伏する場合に、平板状水密ゴム４１は側面戸当金物４４の接触部から平板の表面に直角方向の摩擦力を受けるため容易に曲げ変形を生じ、先端部４２が鋼製扉体４３の側端部と側面戸当金物４４との隙間に引き込まれて損傷する事故が多く発生した。
【０００４】このため、側面水密ゴム４１と鋼製扉体４３の間にプラスチック板を介在させ、プラスチック板と側面戸当金物４４との隙間がほとんど無いよう調節する等の工夫が実施されたが、このプラスチック板の介在が漏水の原因になるなど改善の必要性が残されていた。
【０００５】
【課題を解決するための手段】この発明では、以上のように損傷しやすい側面水密ゴムの課題を解決するための手段として曲げ変形に対し強い抵抗力を有する側面水密ゴムを使用することとして、平板状水密ゴムの内部に補強繊維を組み込むことにした。すなわち、側面戸当金物に接触しつつ摺動する平板状水密ゴムの先端部は断面を半円状に仕上げたゴム板であり、かつ柔軟であって、側面戸当金物の表面によくなじんで水密を形成するとともに、耐磨耗性に優れている。
【０００６】このような平板状水密ゴムの断面に先端部の内側でＵ字形に曲げた補強繊維を組み込むと、平板状水密ゴムの幅方向の曲げに対する強度が非常に強くなり、鋼製の起伏ゲートが起伏運動を行なう際に大きな摩擦力を受けても、平板状水密ゴムの先端が鋼製扉体の側端と側面戸当金物の表面との間の隙間に引き込まれることに対する抵抗力が飛躍的に向上する。
【０００７】他方、平板状水密ゴムの長さ方向には補強繊維を組み込まないので、平板状水密ゴムの長さ方向の柔軟性、屈曲性は少しも変化がない。したがって、側面水密ゴムと下部水密ゴムとの接続部のなじみがよく、漏水の発生の少ない水密構造を構築することが可能になるのである。
【０００８】
【発明の実施の形態】以下、この発明の起伏ゲートの実施の形態を、図面に基いて詳細に説明する。
【０００９】図１ないし図５はこの発明の起伏ゲートの１実施例を示すものであり、図１は鋼製の起伏ゲートの起立状態の正面図であり、図２は鋼製の起伏ゲートの起立状態の断面図であり、図３は倒伏状態の起伏ゲートの断面図であり、図４はこの発明の水密ゴムを取り付けた鋼製扉体側端部における側面水密部の断面図であり、図５は従来例の水密ゴムを取り付けた鋼製扉体側端部における側面水密部の断面図である。
【００１０】この発明においては図４に示すごとく、鋼製扉体１の側端部の雌ネジ２に押え板３とボルト４によって強固に固定された側面水密ゴム５は先端６の断面形状を半円形に仕上げられて、側面戸当金物７の表面にほどよく接触するよう調整されている。
【００１１】このとき、側面水密ゴム５の断面内部には表面に沿った位置に補強繊維８が組み込まれ、その形状は側面水密ゴム５の先端６の内側でＵ字形に曲げてあるので、側面水密ゴム５の先端６と側面戸当金物７の表面との間に摩擦力が作用しても大きな変形が発生せず、鋼製扉体１の起伏運動が滑らかに行なわれるのである。
【００１２】図１ないし図３に鋼製の起伏ゲートの１実施例を示し、図１は鋼製扉体が起立した状態の正面図を、図２はその断面図を、図３は鋼製扉体が倒伏した状態を示す。
【００１３】図１ないし図３に示すごとく、河床のコンクリート９に並べて設置したアンカーボルト１０と固定台兼用押え板１１によって、３辺が閉じ１辺が開いた平らな長方形として製作したゴム引布製の空気袋１２の開いた辺１３を河床のコンクリート９に押え付けることによって、開いた辺１３を密閉しつつ河床のコンクリート９に固定する。
【００１４】次に、固定台兼用押え板１１の上面にボルト１４と押え板１５によって１辺を固定した定着ゴム板１６の他辺をボルト１７と押え板１８によって、鋼製扉体１の下部の上流面に固定することにより、鋼製扉体１を河床のコンクリート９に強固にかつ起伏自由に繋留すると同時に、鋼製扉体１の下部からの漏水を防止する。
【００１５】また鋼製扉体１の下端には直径が固定台兼用押え板１１の厚さとほぼ等しい直径の丸棒鋼１９を取り付けて、起伏運動に際して定着ゴム板１６に無理な変形が生じないようにする。
【００１６】さらに、空気袋１２に口金２０で接続した空気管２１をコンクリート９に埋設するなどして陸上に導き、手動弁２２、流量調整弁２３を経て空気圧縮機２４に連絡し、あるいは手動弁２５、流量調整弁２６を経て空気放出口２７に連絡する。
【００１７】このように構成した上で空気圧縮機２４で発生させた圧縮空気を流量調整弁２３、手動弁２２、空気管２１、口金２０を経て空気袋１２に送入し、鋼製扉体１を起立させた状態の起伏ゲートの断面図が図２である。下流側のアンカーボルト２８と押え板２９によって一端を固定したゴム引布製の引留帯３０の他端を鋼製扉体１の下流側上部にボルト３１と押え板３２によって固定してあるため、鋼製扉体１の起立運動は引留帯３０に作用する張力によって停止する。
【００１８】このとき、鋼製扉体１の側端部の雌ネジ２にボルト４と押え板３によって固定された側面水密ゴム５の先端６が側面戸当金物７の表面に適当な接触を保ち、側面からの漏水を防止している。
【００１９】他方、手動弁２２を閉じ、手動弁２５を開いて空気袋１２の内部の圧力を有する空気を、口金２０、空気管２１、手動弁２５、流量調整弁２６を経て、空気放出口２７から大気中に放出した結果、鋼製扉体１が倒伏した状態の起伏ゲートの断面図が図３である。
【００２０】このとき、鋼製扉体１の頭部の折曲部３３が、倒伏時に支持台３４に支持されて倒伏が完了し、空気袋１２と引留帯３０は鋼製扉体１の下に格納され、流下物に対し保護されている。
【００２１】以上のように、鋼製扉体１が起立または倒伏する起伏ゲートの側面水密部の断面図が図４に示したものであり、鋼製扉体１が起立運動するとき、側面水密ゴム５の先端６は側面戸当金物７の表面から図面の上から下方に向かう摩擦力を受け、鋼製扉体１の側端部と側面戸当金物７の隙間３５に引き込まれる危険があるけれど、図４においては側面水密ゴム５の内部に組み込んだ補強繊維８によって幅方向の曲げに対する強度が非常に強くなっているから引き込まれることがない。
【００２２】他方、図５に示すように補強繊維の組み込まれていない側面水密ゴム４４を使用した側面水密部においては、先端部４２が鋼製扉体４３と側面戸当金物４４の隙間に引き込まれて大きく変形し、先端部４２が損傷を受ける事故が生じることが多いのである。
【００２３】
【発明の効果】この発明の起伏ゲートにおいては、鋼製扉体の起立または倒伏に際し、側面水密ゴムが鋼製扉体と側面戸当金物との間の隙間に引き込まれて損傷する事故を少なくすることが可能となる。同時に側面水密ゴムが鋼製扉体と側面戸当金物との間の隙間に引き込まれた結果、鋼製扉体と側面水密ゴムとの間の摩擦力が異常に大きくなることがないので、起伏操作の確実性を向上する効果があった。
【００２４】このことは、起伏ゲートの側面水密ゴムを取替える工事の頻度を少なくする経済効果と、起伏ゲートの自重による倒伏能力を確保するために必要な鋼材の重量を軽減する経済効果や引き込まれ防止のために介在させるプラスチック板の省略による経済効果を実現するのである。
【図面の簡単な説明】
【図１】この発明の起伏ゲートの１実施例を示し、起伏ゲートが起立した状態の正面図である。
【図２】その断面図である。
【図３】起伏ゲートが倒伏した状態の断面図である。
【図４】この発明の水密ゴムを取り付けた鋼製扉体側端部における側面水密部の断面図である。
【図５】従来例の水密ゴムを取り付けた鋼製扉体側端部における側面水密部の断面図である。
【符号の説明】
１　鋼製扉体
２　雌ネジ
３　押え板
４　ボルト
５　側面水密ゴム
６　先端
７　側面戸当金物
８　補強繊維
９　コンクリート
１０　アンカーボルト
１１　固定台兼用押え板
１２　空気袋
１３　開いた辺
１４　ボルト
１５　押え板
１６　定着ゴム板
１７　ボルト
１８　押え板
１９　丸棒鋼
２０　口金
２１　空気管
２２　手動弁
２３　流量調整弁
２４　空気圧縮機
２５　手動弁
２６　流量調整弁
２７　空気放出口
２８　アンカーボルト
２９　押え板
３０　引留帯
３１　ボルト
３２　押え板
３３　折曲部
３４　支持台
３５　隙間
４１　水密ゴム
４２　先端部
４３　鋼製扉体
４４　側面戸当金物[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel up-and-down gate which functions to rise running water when a steel door body rotatably fixed to the bottom of a water channel rises and to discharge the water when it falls down. is there.
[0002]
2. Description of the Related Art A steel up-and-down gate is one in which a steel door body stands up or down by a horizontal center of rotation fixed to the bottom of a water channel, and the steel door body is made rectangular. Therefore, as shown in FIG. 5, the side end of the steel door body 43 moves along a vertical plane. For this reason, in order to form the watertightness of the side part of the steel door body 43, the side door metal fitting 44 is made of stainless steel having a smooth flat surface, and a flat plate is formed from the side end of the steel door body 43 so as to always contact the stainless steel. A structure that protrudes a water-tight rubber 41 has been adopted.
[0003]
In the case of a steel undulating gate having a side watertight portion having such a structure, the flat watertight rubber 41 is brought into contact with the side door metal fitting 44 when standing or falling down. Bending is easily caused by receiving the frictional force in the direction perpendicular to the surface of the flat plate from the part, and the tip end part 42 is drawn into the gap between the side end part of the steel door body 43 and the side door fitting 44 and is damaged. Occurred many times.
For this reason, various measures have been taken such as interposing a plastic plate between the side watertight rubber 41 and the steel door body 43 so as to make almost no clearance between the plastic plate and the side door fitting 44. However, there is still a need for improvement such as the presence of the plastic plate causing water leakage.
[0005]
According to the present invention, as a means for solving the problem of the side watertight rubber which is easily damaged as described above, a side watertight rubber having a strong resistance to bending deformation is used. It was decided to incorporate reinforcing fibers inside the flat watertight rubber. That is, the tip of the flat watertight rubber that slides while contacting the side door fitting is a rubber plate having a semicircular cross section and is flexible, and is well adapted to the surface of the side door fitting. It is watertight and has excellent wear resistance.
When a reinforcing fiber bent into a U-shape inside the tip portion is incorporated into the cross section of such a flat watertight rubber, the strength of the flat watertight rubber against bending in the width direction becomes very strong, and the steel undulations are formed. Even if the gate is subjected to a large frictional force when performing the undulating movement, the resistance of the tip of the flat watertight rubber to be drawn into the gap between the side edge of the steel door body and the surface of the side door fitting is reduced. Improve dramatically.
On the other hand, since no reinforcing fibers are incorporated in the longitudinal direction of the flat watertight rubber, the flexibility and flexibility in the longitudinal direction of the flat watertight rubber are not changed at all. Therefore, the connection between the side watertight rubber and the lower watertight rubber is well adapted, and a watertight structure with less water leakage can be constructed.
[0008]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the undulating gate according to the present invention will be described below in detail with reference to the drawings.
FIG. 1 to FIG. 5 show an embodiment of an undulating gate according to the present invention. FIG. 1 is a front view of an upright state of a steel undulating gate, and FIG. FIG. 3 is a cross-sectional view of the up-and-down gate in an upright state, and FIG. 4 is a cross-sectional view of a side water-tight section at a steel door body side end to which the water-tight rubber of the present invention is attached. FIG. 5 is a cross-sectional view of a side watertight portion at a steel door body side end to which a conventional watertight rubber is attached.
In the present invention, as shown in FIG. 4, a side watertight rubber 5 firmly fixed to a female screw 2 at a side end of a steel door body 1 by a pressing plate 3 and a bolt 4 has a cross-sectional shape of a tip 6. It is finished in a semicircle, and is adjusted so as to be in good contact with the surface of the side door fitting 7.
At this time, the reinforcing fiber 8 is incorporated at a position along the surface inside the cross section of the side watertight rubber 5 and its shape is bent into a U shape inside the tip 6 of the side watertight rubber 5. Even if a frictional force acts between the tip 6 of the watertight rubber 5 and the surface of the side door metal fitting 7, no large deformation occurs, and the undulating movement of the steel door 1 is performed smoothly.
1 to 3 show an embodiment of a steel undulating gate. FIG. 1 is a front view of a steel door body in an upright state, FIG. 2 is a sectional view thereof, and FIG. The state where the door body fell down is shown.
As shown in FIGS. 1 to 3, a rubber drawing cloth made as a flat rectangle having three sides closed and one side opened by means of anchor bolts 10 and fixing plate / holding plate 11 arranged side by side on concrete 9 on the riverbed. The open side 13 of the air bag 12 is pressed against the concrete 9 on the riverbed while the open side 13 is pressed against the concrete 9 on the riverbed.
Next, the other side of the fixing rubber plate 16 having one side fixed to the upper surface of the fixing base and holding plate 11 by the bolt 14 and the holding plate 15 is fixed to the lower portion of the steel door body 1 by the bolt 17 and the holding plate 18. Of the steel door 1 is firmly and undulated freely on the concrete 9 of the riverbed, and at the same time, water leakage from the lower part of the steel door 1 is prevented.
At the lower end of the steel door 1, a round bar 19 having a diameter substantially equal to the thickness of the holding plate 11 is attached so as to prevent the fixing rubber plate 16 from being unduly deformed during the undulating movement. To
Further, an air pipe 21 connected to the air bag 12 by a base 20 is buried in the concrete 9 and guided to the land. The air pipe 21 is connected to an air compressor 24 via a manual valve 22 and a flow control valve 23, or is manually operated. The air outlet 27 is communicated via a valve 25 and a flow control valve 26.
With the above construction, the compressed air generated by the air compressor 24 is sent to the air bag 12 through the flow control valve 23, the manual valve 22, the air pipe 21, and the base 20, and the steel door body is provided. FIG. 2 is a cross-sectional view of the undulating gate in a state in which the gate 1 is raised. Since the other end of the rubber-made cloth retention band 30, one end of which is fixed by the downstream anchor bolt 28 and the holding plate 29, is fixed to the upper portion on the downstream side of the steel door 1 by the bolt 31 and the holding plate 32, The standing motion of the door-making body 1 is stopped by the tension acting on the retaining band 30.
At this time, the tip 6 of the side watertight rubber 5 fixed to the female screw 2 at the side end of the steel door body 1 by the bolt 4 and the holding plate 3 makes an appropriate contact with the surface of the side door metal fitting 7. To prevent water leakage from the side.
On the other hand, the manual valve 22 is closed, the manual valve 25 is opened, and the air having the pressure inside the air bag 12 is supplied through the base 20, the air pipe 21, the manual valve 25, and the flow control valve 26 to the air discharge port. FIG. 3 is a cross-sectional view of the undulating gate in a state where the steel door body 1 has been laid down as a result of being released from 27 into the atmosphere.
At this time, the bent portion 33 of the head of the steel door body 1 is supported by the support table 34 when it falls down, and the fall is completed, and the air bag 12 and the retaining band 30 are moved below the steel door body 1. And is protected against runoff.
As described above, FIG. 4 is a cross-sectional view of the side watertight portion of the up / down gate where the steel door 1 stands up or down, and when the steel door 1 moves upright, the side watertightness is obtained. The tip end 6 of the rubber 5 receives a frictional force from the surface of the side door fitting 7 downward from above in the drawing, and may be drawn into the gap 35 between the side end of the steel door body 1 and the side door fitting 7. However, in FIG. 4, since the strength against bending in the width direction is very high due to the reinforcing fibers 8 incorporated in the inside of the side watertight rubber 5, no pull-in occurs.
On the other hand, as shown in FIG. 5, in the side watertight portion using the side watertight rubber 44 in which the reinforcing fiber is not incorporated, the front end portion 42 is drawn into the gap between the steel door body 43 and the side door fitting 44. In many cases, there is an accident that the tip portion 42 is greatly deformed and the tip portion 42 is damaged.
[0023]
According to the up-and-down gate of the present invention, when the steel door is erected or laid down, it is possible to reduce an accident that the side watertight rubber is drawn into the gap between the steel door and the side door hardware and is damaged. It is possible to do. At the same time, the side watertight rubber is drawn into the gap between the steel door body and the side door hardware, so that the frictional force between the steel door body and the side watertight rubber does not become abnormally large. This has the effect of improving the reliability of the operation.
This is an economic effect of reducing the frequency of construction work for replacing the watertight rubber on the side of the undulating gate, and an economic effect of reducing the weight of steel necessary for securing the undulating ability of the undulating gate by its own weight. This achieves the economic effect of omitting the plastic plate interposed for prevention.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of an undulating gate according to the present invention, in a state where the undulating gate is erected.
FIG. 2 is a sectional view of the same.
FIG. 3 is a cross-sectional view showing a state where an undulating gate is laid down.
FIG. 4 is a cross-sectional view of a side watertight portion at a steel door body side end to which the watertight rubber of the present invention is attached.
FIG. 5 is a cross-sectional view of a side watertight portion at a steel door body side end to which a conventional watertight rubber is attached.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Steel door body 2 Female screw 3 Holding plate 4 Bolt 5 Side watertight rubber 6 Tip 7 Side door fitting 8 Reinforcement fiber 9 Concrete 10 Anchor bolt 11 Holding plate serving as fixed base 12 Air bag 13 Open side 14 Bolt 15 Holding plate Reference Signs List 16 fixing rubber plate 17 bolt 18 holding plate 19 round bar 20 cap 21 air pipe 22 manual valve 23 flow control valve 24 air compressor 25 manual valve 26 flow control valve 27 air discharge port 28 anchor bolt 29 holding plate 30 retaining band 31 bolt 32 Holding plate 33 Bent portion 34 Support base 35 Gap 41 Watertight rubber 42 Tip 43 Steel door body 44 Side door hardware

Claims

In an up / down gate that rises or discharges a running water by erecting or falling down a steel door body having a rotation center at the bottom of a water channel, the steel door body protrudes from a side end of the steel door body and comes into contact with a surface of a side door metal fitting. The cross-sectional shape of the part of the tip of the flat watertight rubber that forms the watertightness of the side surface of the undulating gate is made semicircular at the part that contacts the side door hardware, and at the same time, the cross section of the flat watertight rubber is formed along the outer surface of the flat watertight rubber. The reinforcing fibers are arranged in a U-shape on the inside, so that the tip of the flat water-tight rubber is in contact with the side end of the steel door body and the side door fitting due to the frictional force with the surface of the side door fitting during the undulating movement. An up-and-down gate equipped with side watertight rubber reinforced so that it is not damaged by being drawn into the gap between the gate.