WO2020039698A1

WO2020039698A1 - Flap gate

Info

Publication number: WO2020039698A1
Application number: PCT/JP2019/022868
Authority: WO
Inventors: 俊明森井; 京一仲保; 幸男勝田; 暢板垣
Original assignee: 日立造船株式会社
Priority date: 2018-08-23
Filing date: 2019-06-10
Publication date: 2020-02-27
Also published as: JP7038025B2; JP2020029713A

Abstract

A flap gate 1 comprises: a door body 10 that turns about a base-end side and stands upright; side waterproof rubbers 30 that are attached to both widthwise ends of the door body 10 and that come into contact with side doorstops 21; and an upper waterproof rubber 40 which is attached to an upper doorstop 22, and with which a tip end 14 of the door body 10, which is positioned in the same plane as an upper surface 11 of the door body 10 when the door body 10 lays flat, comes into contact when the door body 10 stands upright. The side waterproof rubbers 30 are attached up to the position of the tip end 14 of the door body 10, an end part of the door body 10 on the tip end 14-side thereof is attached to as to be in the same plane as the upper surface 11, and both ends of the upper waterproof rubber 40 in the widthwise direction of the door body 10 are configured so as to come into contact with end parts 34 of the side waterproof rubbers 30 on the tip end 14-side of the door body 10 when the door body 10 stands upright.

Description

Undulating gate

This application relates to an undulating gate.

起 Conventionally, ups and downs gates for preventing inundation by floods and tsunamis have been known. For example, the undulating gate disclosed in Patent Literature 1 includes a door that rises due to buoyancy of water when flooded. And the height of the door body at the time of standing is designed so that it may become higher than an assumed water level. In other words, in this undulating gate, a method of providing water-tight rubber on three sides, that is, on both sides and the bottom of the door body (a three-way water-tight method) is employed.

JP 2012-241449 A

On the other hand, in some areas, construction of seawalls in anticipation of large tsunamis is planned. When such a seawall is constructed, there is a demand to move between inside and outside the seawall. In response to such a demand, it is conceivable to provide an opening through which vehicles and the like can pass in a part of the seawall, and to install an undulating gate in the opening. In this case, it is necessary to adopt a watertight structure (four-way watertight system) in which the door is sealed on both sides, the bottom and the top of the door. However, in an up-and-down gate in which the vehicle passes through the upper surface of the door when the vehicle falls down, if the water-tight rubber is provided on the upper portion of the door, the water-tight rubber on the upper portion of the door may be damaged by the traffic of the vehicle.

The technology disclosed in the present application has been made in view of such circumstances, and its purpose is to secure the upper watertightness of the door body while preventing damage to the upper watertight rubber due to traffic of vehicles and the like when falling down. It is to provide an undulating gate that can be used.

起 The undulating gate of the present application includes a door body, a side door stop and an upper door stop, a side watertight rubber, and an upper watertight rubber. The door body is turned upright around a base end side. The side watertight rubber is attached to both ends in the width direction of the door body, and is in contact with the side door stop. The upper watertight rubber is attached to the upper door stop, and when the door stands up, the tip of the door located on the same plane as the upper surface of the door when it falls down comes into contact.

側 The side watertight rubber is attached up to the position of the tip of the door, and is attached such that the end on the tip side of the door is flush with the upper surface. Both ends in the width direction of the door body of the upper watertight rubber are configured to contact end portions of the side watertight rubber on the tip side of the door body when the door body stands up.

According to the undulating gate of the present application, it is possible to secure the upper watertightness of the door body while preventing damage to the upper watertight rubber due to the passage of a vehicle or the like when falling down.

FIG. 1 is a diagram illustrating a schematic configuration of an undulating gate according to an embodiment when the undulating gate is laid down, as viewed from an upstream side. FIG. 2 is a cross-sectional view illustrating a schematic configuration when the undulating gate according to the embodiment is erected. FIG. 3 is a diagram showing the door body and the side watertight rubber at the time of falling down as viewed from the side. FIG. 4 is a plan view showing the side portion and the side watertight rubber of the door body when it is lying down. FIG. 5 is a cross-sectional view taken along line AA shown in FIGS. FIG. 6 is a sectional view taken along line BB shown in FIGS. FIG. 7 is a sectional view taken along the line CC shown in FIGS. 3 and 4. FIG. 8 is a view showing the views shown in FIGS. 3 and 4 as viewed from the front end side of the door body. FIG. 9 is a cross-sectional view showing the state of contact between the tip of the door body and the upper watertight rubber at the time of standing. FIG. 10 is a perspective view showing a main part of the upper watertight rubber when viewed from below. FIG. 11 is a perspective view showing the state of contact between the side watertight rubber and the upper watertight rubber when standing up, as viewed from above.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the following embodiments are essentially preferable examples, and are not intended to limit the scope of the technology disclosed in the present application, its application, or its use.

起 The undulating gate 1 of the present embodiment is installed on a road surface R of a tunnel-shaped opening provided in a seawall, for example, to prevent water from entering due to a tsunami. The opening is formed in a substantially rectangular shape, and is used for vehicles and the like to move in and out of the seawall. The up-and-down gate 1 is a floating up-and-down gate that automatically performs a rising operation and a falling operation by using water to enter.

As shown in FIGS. 1 and 2, the undulating gate 1 includes a door body 10, a door stop (side door stop 21, upper door stop 22), a storage section 23, and a watertight rubber (side watertight rubber 30, A bottom watertight rubber (not shown) and an upper watertight rubber 40). In FIG. 2, water enters from the right side. In addition, “upstream side” and “downstream side” described below mean the upstream side (right side in FIG. 2) and the downstream side (left side in FIG. 2) in the water intrusion direction.

The door body 10 is formed in a slightly flat and substantially rectangular body, and is turned around the base end side and rises. Specifically, the door body 10 has a rotation shaft 13 on the base end side, and is provided rotatably about the rotation shaft 13. The door body 10 performs a standing operation by rotating counterclockwise in FIG. 2, and performs a falling operation by rotating clockwise in FIG. The door body 10 is normally in a lying state (the state shown in FIG. 1), and in an emergency (that is, when water has entered), the door body 10 rotates from the falling state by the buoyancy of the intruding water and stands up. It is configured as follows. That is, the door body 10 starts the standing operation using the intruding water.

The storage section 23 is formed in a concave shape on the road surface R. The storage unit 23 is formed in a rectangular shape larger than the door body 10 in a plan view, and stores the door body 10 that has fallen down. When the door body 10 is stored in the storage unit 23, that is, when the door body 10 is folded down, the upper surface 11 of the door body 10 (main body 11) and the road surface R are substantially flush. The door body 10 is stored in a state where the base end is located on the downstream side and the tip end 14 is located on the upstream side. In normal times, vehicles and people passing on the road surface R pass on the upper surface 11 of the door body 10. The “upper surface of the door body” according to the claims of the present application intends the upper surface 11 of the door body 10 at the time of falling down (downward state). The upper surface 11 of the door body 10 is a substantially flat surface.

The side door stops 21 are provided on both sides of the door body 10, that is, on the left and right side walls of the opening described above. The upper door stop 22 is provided above the door body 10, that is, on the ceiling wall of the opening. The side door stop 21 extends in the vertical direction, and the upper door stop 22 extends in the horizontal direction (i.e., the left-right direction in FIG. 1, the width direction of the door body 10).

The watertight rubber (side watertight rubber 30, bottom watertight rubber (not shown), upper watertight rubber 40) makes the door body 10 and the door stop watertight.

As shown in FIGS. 3 and 4, the side watertight rubbers 30 are attached to both ends in the width direction of the door body 10 on the upper surface 11 of the door body 10 when it falls down. The side watertight rubber 30 is attached to substantially the entire area of the upper surface 11 of the door body 10 in a direction perpendicular to the width direction (hereinafter, also referred to as a height direction). That is, the side watertight rubber 30 is attached from the base end side of the door body 10 to the position of the tip end 14. The side watertight rubber 30 is pressed against the upper surface 11 of the door body 10 from above by a pressing plate 35. The side watertight rubber 30 is provided to protrude from both ends in the width direction of the door body 10 and comes into contact with the side door stop 21 (see FIG. 5 and the like).

断面 The side watertight rubber 30 has a different cross-sectional shape (cross-sectional shape cut in the width direction of the door body 10) depending on the position of the door body 10 in the height direction. Further, the side watertight rubber 30 is attached such that the end on the tip end 14 side of the door body 10 in the height direction of the door body 10 is flush with the upper surface 11 of the door body 10.

Specifically, the side watertight rubber 30 includes a curved portion 32 and a flat portion 33. The curved portion 32 and the flat portion 33 are formed continuously with each other. The side watertight rubber 30 is divided into five sections W1 to W5 in the height direction of the door body 10. The curved portion 32 is located in the sections W1 to W4, and the flat portion 33 is located in the section W5. Here, the description of the portion of the side watertight rubber 30 that engages with the bottom watertight rubber located on the base end side will be omitted.

The flat portion 33 is formed in a flat plate shape with a constant cross section (see FIG. 7). However, the flat part 33 is formed in a convex arc shape at the tip contacting the side door stop 21. The bending portion 32 has a front end portion that is in contact with the side door stop 21 and is curved (see FIG. 5 and the like). The curved portion 32 has a shape in which a plate-like member is apparently bent, and is manufactured by, for example, mold forming.

As shown in FIG. 5, in the section W <b> 1, the curved portion 32 (side watertight rubber 30) and the pressing plate 35 are sequentially provided on the upper surface 11 of the door body 10. The curved portion 32 is in contact with the side door stop 21. As shown in FIGS. 6 to 8, in the sections W3 to W5, recessed steps 15 are provided at both ends in the width direction of the door 10 on the upper surface 11 of the door 10. That is, a portion of the upper surface 11 of the door body 10 to which the side watertight rubber 30 is attached is concave. In the sections W3 to W5, the depth of the step 15 is constant. Note that the section W2 is a section in which the depth of the step portion 15 increases toward the front end 14 of the door body 10.

区間 As shown in FIG. 6, in the section W3, the curved portion 32 (side watertight rubber 30) is attached to the step portion 15 of the door body 10, and the pressing plate 35 is provided thereon. The curved portion 32 has a portion attached to the step portion 15 flush with the upper surface 11 of the door body 10. In the curved portion 32 of the section W <b> 4, the size of the distal end portion decreases toward the distal end 14 side of the door body 10 and is connected to the flat portion 33.

As shown in FIGS. 7 and 8, in the section W <b> 5, the flat portion 33 (the side watertight rubber 30) is attached to the step portion 15 of the door body 10, and the holding plate 35 is provided thereon. The upper surface of the flat portion 33 is flush with the upper surface 11 of the door body 10. In this way, the end (flat portion 33) of the side watertight rubber 30 on the front end 14 side of the door body 10 is attached so as to be flush with the upper surface 11 of the door body 10. Further, at least a part of the side watertight rubber 30 other than the end (flat portion 33) on the front end 14 side of the door body 10 is attached to the upper surface 11 of the door body 10.

The upper watertight rubber 40 is attached to the lower surface of the upper door stop 22 and extends in the width direction of the door body 10. The upper watertight rubber 40 has rubber contact portions 42 at both ends in the width direction of the door body 10 and a door body contact portion 41 between them.

扉 As shown in FIGS. 9 to 11, the door contact part 41 is formed in a convex shape, and both sides in the upstream and downstream directions are fixed by pressing

plates

45 and 46. The door contact portion 41 is a portion where the tip 14 of the door 10 contacts when the door 10 stands up. The tip 14 of the door body 10 is located on the same plane as the upper surface 11 of the door body 10. The rubber contact portion 42 is a portion that comes into contact with the end 34 (the end 34 of the flat portion 33) of the side watertight rubber 30 on the tip 14 side of the door 10 when the door 10 stands up.

As shown in FIG. 10, in the upper watertight rubber 40, a portion where the tip 14 of the door body 10 and the end 34 of the side watertight rubber 30 (the flat portion 33) are in contact is formed as one continuous watertight line X. . Specifically, the first portion 41a formed in the door contact portion 41 of the watertight line X is a portion where the front end 14 of the door 10 contacts, and is formed linearly. The second portion 42a formed in the rubber contact portion 42 of the watertight line X is a portion of the end 34 of the side watertight rubber 30 (the flat portion 33) where the first portion 34a is in contact with the first portion 34a. Similarly, it is formed linearly. The third portion 42b formed in the rubber contact portion 42 of the watertight line X is a portion where the second portion 34b of the end portion 34 of the side watertight rubber 30 (the flat portion 33) is in contact, and the second portion It is formed in a curved shape according to the deformation of 34b. The portion 42c of the rubber contact portion 42 is a portion cut out so as not to interfere with the slope 35a of the pressing plate 35 from the viewpoint of ensuring better watertightness. Therefore, it is desirable that the portion 42c and the slope 35a do not contact each other, but they may contact each other as long as good watertightness can be ensured. The watertight line Y is a portion where the side watertight rubber 30 contacts the side door stop 21 and is continuous with the third portion 42b of the above watertight line X, and is one watertight line continuous with the watertight line X. Is formed.

As described above, in the up-and-down gate 1 of the above embodiment, the side watertight rubber 30 attached to both widthwise ends of the door body 10 and the upper door stop 22 are attached to the door 10 when the door body 10 stands up. An upper watertight rubber is provided which is in contact with the front end 14 of the door body 10 located on the same plane as the upper surface 11 of the body 10. The side watertight rubber 30 is attached up to the position of the front end 14 of the door body 10, and the end (flat portion 33) of the door body 10 on the front end 14 side in the height direction of the door body 10 is connected to the door body 10. It is mounted so as to be flush with the upper surface 11 of the main body. Further, the rubber contact portion 42 of the upper watertight rubber 40 is configured to come into contact with the end 34 of the side watertight rubber 30 when the door body 10 stands up.

According to the above configuration, since the upper watertight rubber 40 is provided not on the door body 10 but on the upper door stop 22, it is possible to prevent the upper watertight rubber 40 from being damaged due to the passage of a vehicle or the like when the door body 10 falls down. can do. Further, according to the above configuration, in the upper watertight rubber 40, a portion where the tip 14 of the door body 10 and the end 34 of the side watertight rubber 30 (the flat portion 33) are in contact is formed as one continuous watertight line X. be able to. Therefore, the upper watertightness can be sufficiently ensured.

Further, in the undulating gate 1 of the above embodiment, the end (flat portion 33) of the side watertight rubber 30 on the tip 14 side of the door body 10 is flush with the upper surface 11 of the door body 10. A recessed step portion 15 is provided so as to be united. Therefore, it is possible to secure the watertightness of the upper portion with a simple configuration.

According to the undulating gate 1 of the above embodiment, the end (flat portion 33) of the side watertight rubber 30 on the front end 14 side of the door body 10 is formed in a flat plate shape. Therefore, one continuous watertight line X described above can be easily formed.

As described above, the technology disclosed in the present application is useful for undulating gates.

DESCRIPTION OF SYMBOLS 1 Undulating gate 10 Door body 11 Upper surface 14 Front end 15 Step part 21 Side door 22 Upper door 30 Side watertight rubber 33 Flat part (side watertight rubber)
34 End 41 Door contact part (upper watertight rubber)
42 Rubber contact (upper watertight rubber)

Claims

A door that pivots around the base end and stands up;
Side door and top door stop,
Attached to both ends in the width direction of the door body, a side watertight rubber contacting the side door stop,
An upper watertight rubber attached to the upper door stop, wherein when the door body stands up, the tip of the door body located on the same plane as the upper surface of the door body when lying down is in contact with the door body,
The side watertight rubber is attached to a position of the tip of the door body, and an end of the tip side of the door body is attached so as to be flush with the upper surface,
Both ends of the upper watertight rubber in the width direction of the door are configured to be in contact with the ends of the side watertight rubber on the tip side of the door when the door is erected. Undulating gate featured.
The undulating gate according to claim 1,
The upper surface of the door body is provided with a recessed step portion that is attached so that the end of the side watertight rubber on the tip side of the door body is flush with the upper surface. Undulating gate.
The undulating gate according to claim 1 or 2,
An up-and-down gate, wherein an end of the side watertight rubber on a tip end side of the door is formed in a flat plate shape.