Vessel passage gate

Abstract

To provide a climb-over gate in which a fence is positioned above the water surface and which allows small boats to easily pass through.SOLUTION: A vessel passage gate 1 of the present invention allows a vessel 3 to pass over a fence 45 located above the water surface M, and includes a pair of left and right inner upper and lower frames 41, 41 supporting at least the sides of the fence 45, central roller frames 31, 31 extending from each inner upper and lower frame in a direction intersecting the direction of travel of a vessel and connected to central roller switches 10, 10 located near the front and rear of the fence, and outer roller switches 20, 20 located outside each central roller switch at a distance. The central roller switch and the outer roller switches have a propeller passage section 5 consisting of a gap in the center of the fence 45 in the left-right direction. The outer roller switch 20 is movable back and forth from a spaced position to an abutting position where it abuts against the central roller switch 10.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a boat gate having a driftwood stopper for use in dams, rivers, lakes and marshes, and the sea. [Background technology]

[0002] Conventionally, there are vessel gates that separate water areas on the water, and some vessels can pass through by opening and closing doors or climbing over the doors when traveling by vessel. Among these, there are those that push down the doors with the vessel and move forward (Patent Document 1) and those that run over with the vessel (Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-328343 [Patent Document 2] Patent No. 6506465 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the vessel gate in Patent Document 1 rotates and submerges the gate body using abutments that protrude forward and backward from the gate body in the direction of travel of the vessel, so rotating the gate body until it is submerged by these abutments causes a considerable impact on the vessel, making it difficult to rotate and submerge the gate without a large propulsive force.In particular, vessels often decelerate when passing through a vessel gate, and small vessels used in bodies of water such as dam lakes and rivers may not have enough propulsive force to rotate and submerge the gate body.

[0005] Furthermore, although the type of fence described in Patent Document 2 that allows small boats to climb over a door is easy for them to pass through, there is no part at the top center of the fence that is higher than the water surface, and driftwood and other objects can get caught on it and block it.

[0006] In view of the above problems, the present invention aims to provide a climb-over gate in which the fence is positioned above the water surface, making it easy for small boats to pass through. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention provides a vessel gate that allows a vessel hull to climb over a fence located above the water surface, The fence comprises a pair of left and right inner upper and lower frames supporting at least the sides of the fence, central roller switches connected to central roller frames extending from each of the inner upper and lower frames in a direction intersecting the direction of travel of the hull and arranged in the vicinity of the front and rear of the fence, and outer roller switches arranged outside and spaced from each of the central roller switches, The central roller switch and the outer roller switch have a propeller passage portion formed of a gap at the center of the fence in the left-right direction, The outer roller switch is characterized in that it is movable back and forth from a spaced position to a contact position where it contacts the central roller switch.

[0008] The device also includes a pair of left and right and front and rear inclined frames that are connected below the connection position of the pair of left and right inner upper and lower frames and the central roller frame and are inclined upward, and an outer roller frame that extends from the tip of the inclined frame in a direction that intersects with the traveling direction of the hull, and an outer roller switch is connected to the outer roller frame, It is preferable to provide a guide member having a long hole that spans between the pair of inclined frames arranged at the front and rear.

[0009] Furthermore, when the outer roller switch and the central roller switch are in contact with each other in a side view, the line that connects the upper end of the fence to the circumferential surface of the outer roller switch and that has the smallest inclination angle from the horizontal line is set as the reference line, It is preferable that the central roller switch is located on the traveling direction side of the reference line.

[0010] The pair of left and right inner upper and lower frames are pivotally supported at pivotal positions on the upper and lower main frames so as to be swingable about an axial direction intersecting the direction of travel of the hull at a predetermined height, It is preferable that the central roller switch and the outer roller switch, which are located above the pivotal support position, are made of floating bodies, and that a sinker is disposed on the inner upper and lower frames below the pivotal support position. [Effects of the Invention]

[0011] According to the invention described in claim 1, the fence is positioned above the water surface, eliminating problems such as driftwood getting caught, and the gate is swung by a central roller switch and an outer roller switch, which are positioned with an axis intersecting the direction of travel, reducing the impact on the hull. Furthermore, when the outer roller switch initially makes contact with the lower bow of the hull, it rotates and moves toward the central roller switch, and when it comes into contact with the central roller switch, it swung the gate and cleared it, so it does not simply push down the gate body, but allows passage even with low propulsion.

[0012] Furthermore, according to the invention described in claim 2, a guide member with a long hole is arranged to span a pair of front and rear outer roller switches, thereby guiding the outer roller switches to a position where they abut against the central roller switch, and by positioning the outer roller switches at a predetermined position in the normal state, the upper end position of the fence can also be maintained.

[0013] Furthermore, according to the invention described in claim 3, the central roller switch is positioned on the traveling side of the reference line, so that the central roller switch, which rotates in the reverse direction when running over, does not come into contact with the hull, and it is possible to swing the passage gate and get over it with little propulsion force.

[0014] Furthermore, according to the invention described in claim 4, the fence can be rotated on a horizontal axis located near the center of the inner upper and lower frames, and a roller switch consisting of a sinker hanging from the lower end of the inner upper and lower frames and a float located above the inner upper and lower frames allows the passage gate to automatically return to its normal state after passage. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 2 is an overall front view of the vessel gate of the present embodiment. [Figure 2] FIG. 2 is an overall plan view of the vessel gate of the present embodiment. [Figure 3] FIG. 2 is a front view of a state in which the outer roller switch is removed from the state shown in FIG. 1. [Figure 4] 1A and 1B are side views of the vessel passage gate with the main frame removed, where (a) is a side view in the normal state and (b) is an enlarged side view of the abutting state. [Figure 5] 1A and 1B are enlarged views showing the swinging state of the vessel passage gate of this embodiment, in which FIG. 1A shows the state in which the gate is in contact with the roller switch, and FIG. 1B shows the state in which the gate is in contact with the roller switch and pushed in the direction of travel. [Figure 6] 1 shows the swinging state of the pass gate of this embodiment, where (a) shows the state where the bow of the ship has run up onto the pass gate, and (b) shows the state where the stern of the ship has run up onto the pass gate. [Figure 7] 1 shows the swinging state of the passage gate of this embodiment, where (a) shows the state when a ship has passed through the passage gate, and (b) shows the state when the passage gate has returned from the state shown in (a). DETAILED DESCRIPTION OF THE INVENTION

[0016] An example of a vessel gate 1 that allows a vessel hull to pass over the top of a fence according to an embodiment of the present invention will be described in detail with reference to the drawings. In this description, the forward direction of the vessel hull 3 as viewed from the front is referred to as the "front," and the rearward direction as the "rear." The top, bottom, left, and right directions in the front view of Figure 1 are referred to as "up," "down," "left," and "right." The "outside" refers to the side away from the center of the fence, and the "inside" refers to the opposite side. Furthermore, the "normal state" refers to the state shown in Figures 1-4 and 5(a) when the vessel gate 1 is closed, and the "contact state" refers to the state in which the outer roller switch has moved and is in contact with the center roller switch, as shown in Figure 5(b).

[0017] The vessel gate 1 used in this embodiment is installed in a part of a partition fence that separates a certain area of ​​a dam, river, lake, or sea. As shown in FIG. 1, the vessel gate 1 is located within a U-shaped main frame 50 consisting of left and right upper and lower main frames 51, 51 extending vertically, and left and right main frames 52 connecting the lower ends of the two upper and lower main frames. Although details are omitted, partition fences 53, 53 are installed on both the left and right sides of the upper and lower main frames 51, 51 shown in FIG. 1. In this description, the partition fences and fences are made of mesh.

[0018] Floating bodies 54, 54 are arranged on the front and rear of both the left and right sides of the upper and lower main frames 51, 51, respectively, so that the frames and the passage gate 1 are positioned on the water surface M. Marker poles 57, 57 are installed on both sides of the floating bodies 54, 54, protruding upward.

[0019] The fences 45, 46 of the vessel gate 1 are connected via an inner frame 40 located inside the main frame 50. The inner frame 40 consists of inner upper and lower frames 41, 41 extending vertically between the left and right upper main frames 51, 51, and inner left and right frames 42 connecting the upper and lower frames 41 horizontally. The inner left and right frames 42 include an upper frame that spans the upper ends of the inner upper and lower frames 41, 41, and an inner left and right frame that spans the left and right at a pivot support position 55 located slightly below the vertical center and pivotally supports the upper and lower main frames 51, 51. The upper fence 45 is a mesh-like structure stretched between the left and right inner upper and lower frames 41, 41 and the upper and lower inner left and right frames 42, 42, while the lower fence 46 hangs down from the lower inner left and right frames 42, 42. Front and rear main frames 56, 56 extending longitudinally from the upper and lower main frames 51, 51 are located at the pivot support position 55 (see Figure 4(a)).

[0020] As shown in Figures 1 and 2, the vessel passage gate 1 is equipped with central roller switches 10 and outer roller switches 20. Both switches are located lower than the upper end of the fence 45 (upper inner left and right frames 42) in a front view, and are arranged in pairs on the left and right on both sides of the propeller passage section 5, which is a central gap in a front view. In addition, they are arranged in pairs at the front and rear so as to be approximately parallel to the inner upper and lower frames 41 in a plan view. The central roller switches 10 and outer roller switches 20 are both rotatably supported by roller frame members 30 that extend in a direction intersecting the direction of travel of the hull 3, and do not protrude from the gate, so that they will not be subjected to strong impacts even if they come into contact with the hull 3.

[0021] As shown in Figure 1-4, the inner upper and lower frames 41, 41 are pivotally supported by the upper and lower main frames 51, 51 of the main frame 50 at pivotal positions 55 on horizontal axes that intersect with the direction of travel of the hull, allowing them to swing back and forth in the direction of travel and the opposite direction. The outer roller switches 20, 20 are connected to inclined frames 43, 43 that are pivotally supported at the pivotal positions 55 of the inner upper and lower frames 41, 41 so as to be able to swing independently in the direction of travel and the opposite direction.

[0022] In a side view, the inclined frames 43, 43 extend upward from the pivot support position 55 at their base end while being inclined forward and backward rather than vertically, and are provided with outer roller frames 32, 32 extending horizontally at their tips (see Figure 1). While the inner vertical frames 41, 41 are pivotally supported at the pivot support position 55 so that they can swing, the inclined frames 43, 43 are pivotally supported separately from the inner vertical frames 41, 41, and can swing independently of the swinging of the inner vertical frames 41, 41. Sinkers 44, 44 of a predetermined weight are disposed at the lower ends of the inner vertical frames 41, 41.

[0023] The inclined frames 43, 43 are arranged in pairs at the front and rear of the vessel gate 1, and guide members 47, 47 are provided to guide the swinging of the front and rear inclined frames 43, 43 in the direction of travel and the opposite direction. The guide members 47, 47 are connected to the upper and lower main frames 51, 51, and have elongated holes with their longitudinal directions in the direction of travel and the opposite direction, through which the inclined frames 43, 43 pass. These guide members 47, 47 guide the swinging of the outer roller switches 20, 20 (described below) in the direction of travel and the opposite direction, preventing them from shifting left and right, and the tip ends of the elongated holes act as stoppers, so that when the inclined frames 43, 43 are not swinging, their longitudinal directions are stopped at a position where they are inclined relative to the inner upper and lower frames 41, 41.

[0024] The outer roller switches 20, 20 and the central roller switches 10, 10 of this embodiment are both cylindrical members that extend left and right around an axis (outer roller frames 32, 32 and central roller frames 31, 31) that intersects with the direction of travel of the hull 3 and can rotate in the direction of travel. Each roller switch is composed of a roughly cylindrical float made primarily of a synthetic resin material such as polystyrene foam to provide buoyancy, and an outer skin made of urethane resin that covers the float.

[0025] The central roller switches 10, 10 are arranged in a pair near the upper fence 45, one in front of the other, with the fence 45 sandwiched between them, and the outer roller switches 20, 20 are positioned outside and at a lower position than the central roller switches 10, 10 so as to be spaced apart from each other. Specifically, the central roller switches 10, 10 are positioned so that the lower edges of the central roller switches 10, 10 are lower than the upper edges of the outer roller switches 20, 20 in a front view (see FIG. 1).

[0026] The outer roller switches 20 are arranged so that they can move from a normal position to an abutment position. In other words, in the normal position, the outer roller switches 20 are positioned outboard of the central roller switches 10 by the inclined frames 43, but when they abut and are pushed by the bow of the hull 3, the hull 3 rotates the outer roller switches 20 and pushes them in the direction of travel so that they ride up. As a result, the outer roller switches 20 are raised while being guided by the guide members 47, and move to the abutment position where they abut against the central roller switches 10.

[0027] As shown in Figure 4(b), when the outer roller switches 20, 20 are in contact with each other, the line with the lowest inclination among the lines connecting the upper end of the fence 45 (inner upper and lower frames 41) and the circumferential surfaces of the outer roller switches 20, 20 in a side view is defined as the reference line P. The central roller switches 10, 10 are located on the direction of travel side of the reference line P. The reference line P is the position where the outer roller switch 20 and the hull 3 come into contact, and if the central roller switch 10 is located forward of the line connecting the upper end of the fence 45, the hull 3 will not come into contact with the central roller switch 10.

[0028] 4(a) and 4(b), when the hull 3 abuts against the outer roller switch 20 and propels forward, the outer roller switch 20 rotates clockwise. When the outer roller switch 20 abuts against the central roller switch 10, the central roller switch 10 follows the rotation of the outer roller switch 20 and rotates counterclockwise. The central roller switches 10, 10 are not in direct contact with the fence 45, and because the hull 3 does not abut against the central roller switch 10, which rotates in the opposite direction to the direction of travel, it is possible to pass through the passage gate 1 with little propulsive force.

[0029] Furthermore, the central roller switches 10, 10 and the outer roller switches 20, 20 are arranged to have a propeller passage section 5 near the center of the passage gate 1, which is a space with a width at least equal to or greater than the width of the propeller section 4, so that they do not come into contact with the propeller section 4 located at the lower rear of the hull 3 near the center of the passage gate 1. The outer roller switches 20, 20 are aligned with the upper parts of the floating bodies 54, 54 on both sides, so that the outer roller switches 20, 20 are located at the water surface M of the installation water area. In other words, the central roller switches 10, 10 are positioned above the water surface M.

[0030] The following describes the state in which the vessel passes through the passage gate 1 of this embodiment by swinging it. First, as shown in Figure 5(a), the vessel 3 advances toward the space between the marker poles 57, 57 of the passage gate 1. At this time, the vessel gate 1 is not in contact with the vessel 3, and the outer roller switches 20, 20 are in their normal positions.

[0031] Next, as shown in Figure 5(b), the inclined portion of the bow of the hull 3 comes into contact with the outer roller switch 20. As the hull 3 continues to move forward while in contact, the outer roller switch 20 moves toward and comes into contact with the central roller switch 10 while being guided by the guide members 47, 47. As described above, the outer roller switch 20 rotates clockwise in the direction of travel, which reduces the impact upon contact and enables operation with less propulsive force.

[0032] As shown in Figure 6(a), when the hull 3 is further advanced in the direction of travel, it swings significantly and runs up onto the passage gate 1. As shown in Figure 6(b), the hull 3 continues to move forward while swinging and running up onto the passage gate 1. At this time, it is the outer roller switch 20 that is in contact with the hull 3, and the propeller section 4 of the hull 3 can pass through the passage gate 1 without contacting it via the central propeller passage section 5.

[0033] As shown in Figure 7(a), when a ship 3 passes through, the outer roller switches 20, 20 of the passage gate 1 use floats, so the outer roller switches 20 operate to return to the water surface. Then, as shown in Figure 7(b), the outer roller switches 20, 20 and the central roller switches 10, 10 rise due to their buoyancy, and the weight of the sinker 44 operates to close the passage gate 1, returning it to its normal closed state. [Explanation of symbols]

[0034] 1...passage gate, 2...hull, 4...propeller section, 5...propeller passage section, 10...central roller switch, 20...outer roller switch, 30...frame member, 31...central roller frame, 32...outer roller frame, 40...inner frame, 41...inner upper and lower frames, 42...inner left and right frames, 43...inclined frame, 44...sinker, 45...fence, 46...fence, 47...guide member, 50...main frame, 51...upper and lower main frames, 52...left and right main frames, 54...float, 55...axis support position, 56...front and rear main frames, 57...marker pole, M...water surface, P...reference line.

Claims

1. A vessel gate that allows a vessel to climb over a fence located above the water surface. The fence comprises a pair of left and right inner upper and lower frames supporting at least the sides of the fence, central roller switches connected to central roller frames extending from each of the inner upper and lower frames in a direction intersecting the direction of travel of the hull and arranged in the vicinity of the front and rear of the fence, and outer roller switches arranged outside and spaced from each of the central roller switches, The central roller switch and the outer roller switch have a propeller passage portion formed of a gap at the center of the fence in the left-right direction, The outer roller switch is movable back and forth from a spaced position to a contact position where it contacts the central roller switch.

2. The device comprises a pair of left and right and front and rear inclined frames that are connected below the connection position of a pair of left and right inner upper and lower frames and a central roller frame and are inclined upward, and an outer roller frame that extends from the tip of the inclined frame in a direction that intersects with the traveling direction of the hull, and an outer roller switch is connected to the outer roller frame, 2. The vessel gate according to claim 1, further comprising a guide member having an elongated hole that spans between the pair of inclined frames arranged at the front and rear.

3. When the outer roller switch and the central roller switch are in contact with each other in a side view, the line that connects the top end of the fence to the circumferential surface of the outer roller switch and that has the smallest inclination angle from the horizontal line is set as the reference line, 3. The vessel gate according to claim 2, wherein the central roller switch is located on the traveling direction side of the reference line.

4. The pair of left and right inner upper and lower frames are pivotally supported at pivot positions on the upper and lower main frames so as to be swingable about an axial direction intersecting the direction of travel of the hull at a predetermined height, A vessel gate as described in any one of claims 1, 2 or 3, characterized in that the central roller switch and the outer roller switch located above the pivot position are made of floating bodies, and a sinker is placed on the inner upper and lower frames below the pivot position.

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