JP5736411B2 - Floating pier - Google Patents

Description

  The present invention relates to a floating pier used in a state of being floated on a water surface at a revetment.

  Floating piers are installed on the revetments of harbors, rivers, etc., for docking and mooring small ships. As such a floating pier, a floating body structure conventionally comprising a main body having a hollow portion formed by arranging a plurality of plate members in Patent Document 1 and a foamed resin member accommodated in the hollow portion of the main body. Things are disclosed.

  In recent years, floating structures have come to be used in various water sports such as simple ship piers, rowing boats, canoeing and sailing. It is also expected to be used in flood-affected areas and as floating waves.

Japanese Patent No. 4143701

  However, when a floating pier is installed on the revetment, a space dedicated to the floating pier is required in the port and river, which hinders ship operation. Therefore, the inventor has worked on the development of a floating pier that is deployed when necessary and stored when not needed.

  This invention is made | formed in view of this situation, and makes it a subject to provide the storable floating pier.

(1) The floating pier of the first invention comprises a guide rail that can be fixed to the revetment, a substantially flat surface that floats on the water surface in the expanded state and faces upward, and is separated from the revetment. A floating body structure having a side surface extending in a direction to be moved, and one end connected to the side surface of the floating body structure and the other end supported to be movable up and down with respect to the guide rail. An opening / closing member capable of opening and closing the floating structure and closing it to the retracted state, and one end of the opening / closing member is freely rotatable on the side surface of the floating structure The first link member is connected, and the second link member is rotatably connected to the other end of the first link member and the other end is supported by the guide rail so as to be vertically movable. And

  According to the said structure, the floating body structure is supported by the opening / closing member so that opening and closing is possible with respect to the guide rail fixed to the revetment. For this reason, the floating structure can be expanded when necessary and stored when not necessary. For example, in the case of a small ship, the floating structure is deployed and the small ship is moored to the floating structure. In the case of a large ship, the floating structure is stored and the large ship is moored directly on the revetment. Can be made.

  The other end of the opening / closing member is supported by the guide rail so as to be movable up and down. For this reason, the floating structure can be moved up and down according to the rise and fall of the water surface.

  Since the floating structure is held on the revetment by the guide rail and the opening and closing member, the structure is simple. It is easy to mount floating structures on the revetment.

With a fixable said guide rails to protect coast and sides extending in a direction away from the revetment constitute the edges of the substantially flat surface and the surface facing upward floating on the water surface when the unfolded state The floating structure and the one end are connected to the side surface of the floating structure and the other end is supported so as to be movable up and down with respect to the guide rail. And the opening and closing member that can be closed and put into a retracted state .

  One end of the opening / closing member is connected to the side surface of the floating structure, and the other end of the opening / closing member is supported by the guide rail so as to move up and down along the guide rail. For this reason, when a floating structure is developed, it does not become an obstacle to traffic on the floating structure.

  Here, one end of the opening / closing member may be connected to any position on the side surface of the floating structure. Here, the side surface of the floating body structure to which the opening / closing member is connected refers to a side surface that forms an edge of the surface facing upward when in the unfolded state and extends in a direction away from the revetment. The opening / closing member is preferably connected to the side of the revetment on this side. In this case, when the floating body structure is deployed, the opening / closing member is unlikely to protrude thereon, and it is difficult for people and vehicles to pass. The revetment side of the side surface of the floating structure is defined as the distance between the one end of the side close to the revetment on the side of the floating structure and the other end on the offshore side far from the revetment. It is a position closer to one end of the side surface than the other end portion of the side surface.

  The entire floating body structure may be an integral product, or may be configured by arranging a plurality of floating bodies.

Before SL closing member includes a first link member having one end pivotally connected to the side surface of the water floating structure, the other end is rotatably connected to one end pivoted to the other end of the first link member And a second link member supported by the guide rail so as to be movable up and down . In this case, the floating structure can be opened and closed with a simple configuration.

  The other end of the second link member may be connected to a lifting member that can move the other end up and down. When the floating structure is in the unfolded state, the lifting member is lowered to lower the floating structure on the water surface. Can be retained.

( 2) The floating pier of the second invention comprises a guide rail that can be fixed to the revetment, a substantially flat surface that floats on the water surface in the expanded state and faces upward, and is separated from the revetment. A floating body structure having a side surface extending in a direction to be moved, and one end connected to the side surface of the floating body structure and the other end supported to be movable up and down with respect to the guide rail. An opening / closing member capable of opening and closing the floating structure and closing it to the retracted state, and one end of the opening / closing member is freely rotatable on the side surface of the floating structure wherein the concatenated other end comprising said and vertically movably supported connection member to the guide rail, the first lifting member which lifting the other end of the connecting member capable of moving up and down along the guide rail And Also in this case, the floating structure can be opened and closed with a simple configuration. The connecting member is raised and lowered along the guide rail by the first lifting member. For this reason, at the time of storage, the floating structure can be pulled up above the water surface and held on the guide rail.

( 3) In the first or second invention, it is preferable that the floating structure is extended along the revetment. In this case, a floating structure can be arranged along the revetment.

( 4) The floating pier of the third invention includes a guide rail that can be fixed to the revetment, a floating structure floating on the water surface in the unfolded state, one end connected to the floating structure, and the other end connected to the floating structure. An open / close member capable of opening and closing the floating body structure to be closed and retracted by being supported so as to be movable up and down with respect to the guide rail, and the floating body In the structure, a plurality of floating bodies are arranged in series, and one end of each opening and closing member is connected to each of the left and right side surfaces extending in a direction away from the revetment of each floating body, and connected to each side surface of each floating body the other end of the closing member which is is characterized in that it is supported on each of the guide rails. In this case, each floating body constituting the floating body structure is supported on the guide rail by the opening / closing members connected to the left and right side surfaces thereof. For this reason, the floating body can be stably held on the revetment.

( 5) In the third invention, it is preferable that a concave portion for accommodating the opening / closing member is formed on a side surface of the floating body. Since the opening / closing member is accommodated in the recess formed on the side surface of the floating body, the floating bodies can be arranged continuously. For this reason, it becomes easy for a person or a vehicle to pass on the floating body structure in which the floating bodies are continuously arranged.

( 6) The floating pier of the fourth invention includes a guide rail that can be fixed to the revetment, a floating structure that floats on the water surface in the unfolded state, one end connected to the floating structure, and the other end that is An opening / closing member capable of opening and closing the floating structure and closing it to a retracted state by being supported so as to be movable up and down with respect to the guide rail. Has a pivot support part that pivotably supports the floating structure, and is supported by the guide rail so as to be movable, and is guided by the guide rail to move up and down . A second lifting member that lifts the floating structure so as to move up and down, and a holding portion that is fixed to the floating structure and holds the second lifting member, and the floating structure is unused. Sometimes The second floating member is lifted to lift the floating body structure to place the floating body structure on the carriage. When the floating body structure is used, the second floating member is The floating structure is pulled out to float on the water.

  The carriage can move only in the direction in which the guide rail extends. For this reason, the carriage does not leave the guide rail. On the other hand, the floating structure is arranged on the carriage when retracted, but when deployed, the floating structure floats on the water away from the carriage.

  When the floating structure is not in use, the carriage is lifted along the guide rail. The trolley is mounted with a floating structure and is in a retracted state. When using a floating structure, pull the cart down. The floating body structure mounted on the carriage is supported by the rotation support portion and floats on the surface of the water, and the floating structure is in a deployed state.

Before SL closing member further the includes a second lifting member lifting water floating construction a vertically movable, and a holding portion for holding the water floating structure second of said lifting member is fixed to, When the floating structure is not in use, the floating structure is placed on the carriage by lifting the second floating member and lifting the floating structure. When the floating structure is in use, Then, the second lifting member is pulled out to float the floating structure on the water .

  When not in use, the floating structure is pulled up and stored by the second lifting member. When the second lifting member is pulled up, the carriage on which the floating structure is placed moves up and down on the guide rail. For this reason, the floating structure can be smoothly pulled up along the guide rail. In use, the floating structure is lowered by the second lifting member, and the floating structure is floated and deployed. In this way, the floating structure can be stored or deployed with a simple configuration.

( 7) In the first to fourth inventions, the guide rail preferably extends in a direction inclined with respect to the revetment. One end of the guide rail is close to the revetment, and the other end of the guide rail is located farther from the revetment than one end. The floating structure when not in use is stably supported with respect to the guide rail.

( 8) In the first to fourth aspects of the invention, the floating body structure has a long plate shape and has a pair of first grooves extending from both sides in the width direction so as to face each other in the width direction at both ends. A resin plate member having a short plate shape and a pair of second grooves facing each other from both sides in the width direction and extending toward the center in the width direction, respectively. A pair of the plate members are arranged vertically apart from each other, a pair of the connecting plates are arranged on both sides of the plate member so as to intersect the plate members, and the second groove is assembled in the first groove. By attaching, a plurality of unit frame bodies in which a pair of the plate members are fixed by the pair of connection plates are arranged in the width direction of the plate members, and the adjacent plate members are continuously connected by the connection plates. A body having a hollow portion surrounded by a plurality of pairs of plate members and a plurality of pairs of connecting plates, It is preferable to consist of the resin foam arrange | positioned in this hollow part.

  Since the floating body structure has an appropriate mass and an appropriate balance with buoyancy, it floats stably on the surface of the water. For this reason, even if an object having a certain amount of mass is placed on the floating structure, the floating structure can float stably without sinking in water.

  The plate member preferably has thick portions at both ends. It is preferable that each surface of the connecting plate exposed on each surface of the main body is flush with the surface of the plate member. It is preferable to further include a rod-shaped fastening member that fixes a state in which a plurality of the unit frame bodies are arranged in the width direction of the plate member. It is preferable that the fastening member is disposed at a depth from the surface of the main body. It is preferable that a plurality of the main bodies are arranged on the water surface, and the adjacent main bodies are connected to each other using the fastening member.

( 9) In the first to fourth inventions, when the floating structure is stored, a fender is fixed to the surface of the floating structure facing the offshore side opposite to the revetment. It is preferable. When the floating structure is stored, even if the ship hits the floating structure, the impact is mitigated by the fender fixed to the floating structure, and damage to the floating structure can be prevented.

  According to the present invention, the floating structure is held by the opening / closing member and the guide rail so as to be openable / closable and vertically movable. Therefore, a retractable floating pier can be provided.

It is a perspective view of the floating jetty of the 1st Embodiment of this invention. It is an enlarged side view of the floating pier in the retracted state of the first embodiment. It is the top view (a), side view (b), front view (c), and back view (d) of the floating pier in the unfolded state of the first embodiment. It is the top view (a), side view (b), front view (c), and back view (d) of the floating pier in the retracted state of the first embodiment. It is a perspective view of the floating body structure of a 1st embodiment. It is a disassembled perspective view of the main body of the floating body structure of 1st Embodiment. It is sectional drawing of the floating body structure of 1st Embodiment. It is a perspective view of the board member and connection board which were used for the floating body structure of other modes of a 1st embodiment. It is a principal part perspective view of the floating body structure of the other aspect of 1st Embodiment. It is a perspective view of the fastening member used for the floating body structure of other modes of a 1st embodiment. It is sectional drawing of the floating body structure of the other aspect of 1st Embodiment. It is a principal part front view which shows the connection structure of the floating body structure of 1st Embodiment. It is a perspective view of the board member and connection board which were used for the floating body structure of other modes of a 1st embodiment. It is a side view of the floating pier of the other aspect of 1st Embodiment, Comprising: (a) shows a state when a floating body structure is developed, (b) shows a state when a floating body structure is stored Indicates. It is a top view of the floating pier in the expansion | deployment state of the other aspect of 1st Embodiment. It is a side view of the floating pier in the retracted state of the second embodiment. It is a side view of the floating pier in the expansion | deployment state of 2nd Embodiment. It is a front view of the guide rail of 2nd Embodiment. It is a reverse view of the floating body structure of 2nd Embodiment. 20A is an enlarged view of the rear surface of the front center portion of FIG. 19, and FIG. 20B is a cross-sectional view taken along line AA of FIG. 20A. FIG. 21A is an enlarged view of the rear surface of the central portion on the rear side in FIG. 19, and FIG. 21B is a cross-sectional view taken along the line BB in FIG. It is a perspective view of the trolley | bogie of 2nd Embodiment. It is a front view of the guide rail provided with the trolley | bogie. It is CC sectional view taken on the line of FIG. It is a side view of the floating pier of the modification of 2nd Embodiment.

  As shown in FIG. 1, the floating pier according to the first embodiment of the present invention includes a guide rail 2 that can be fixed to the revetment 1, a floating structure 3, a guide rail 2, and a floating structure 3. And an opening / closing member 5 for connecting between them.

  The guide rail 2 is made of metal and has a long shape, and is fixed to the revetment 1 with its extending direction directed in the vertical direction. In order to fix the guide rail 2 to the revetment 1, a bolt hole is formed at a predetermined position of the guide rail 2, a bolt is inserted into the bolt hole, and further, the tip of the bolt is driven into the revetment 1 and then tightened with a nut. The length of the guide rail 2 is the water surface W.W. L. Is located at the uppermost position, the water floating structure 3 accommodated in the water surface W. L. It can be raised to a height that does not touch the surface. A plurality of guide rails 2 are arranged in parallel on the revetment 1. In the present embodiment, as shown in FIG. 1, the upper end of the guide rail 2 is located at the top of the revetment 1, but is not limited to this, and is located at a position lower than the top of the revetment 1. It may also be located higher than the top of revetment 1.

  The floating body structure 3 includes a plurality of floating bodies 30 arranged in a row. When in the unfolded state, the plurality of floating bodies 30 have their surfaces facing each other at the same height. Each floating body 30 is supported by the guide rail 2 via the opening / closing member 5 connected to the left and right side surfaces 30b.

  As shown in FIG. 2, the opening / closing member 5 includes a first link member 51 and a second link member 52 made of metal. The opening / closing member 5 is accommodated in a concave portion 30 a formed on the revetment side of the side surface 30 b of the floating body 30. The concave portion 30a has a shape in which a revetment side portion of a side surface 30b extending in a direction away from the revetment 1 of the floating body 30 is cut out in a step shape. The concave portion 30a does not hinder the rotation of the opening and closing member 5, and the opening and closing member 5 has a depth equal to or slightly larger than the thickness of 5.

  One end of the first link member 51 is provided with a rotating shaft 51a. The rotation shaft 51a is rotatably fitted in a fitting hole formed in the recess 30a of the side surface 30b of the floating body 30. The other end of the first link member 51 is formed with a connecting hole 51b. A rotation shaft 52a formed at one end of the second link member 52 is fitted in the connection hole 51b so as to be freely rotatable. On the other end of the second link member 52, a sliding protrusion 52b is formed. The sliding protrusion 52b is slidably engaged with the guide groove 20 formed in the guide rail 2.

  An extendable drive cylinder 55 is connected between one end of the first link member 51 and the other end of the second link member 52. The drive cylinder 55 is, for example, a hydraulic cylinder or a hydraulic cylinder. The drive cylinder 55 is provided with a control unit (not shown). In response to the operation command from the control unit, the drive cylinder 55 expands and contracts.

  Further, the drive cylinder 55 is used in combination with an urging spring to perform either the direction of contraction or the direction of extension between the one end of the first link member 51 and the other end of the second link member 52 by the urging force. The other can be performed by the driving force of the driving cylinder 55. In this case, the drive cylinder 55 may be either single acting or double acting.

  When the floating body 30 is deployed, the drive cylinder 55 is extended. As a result, as shown in FIG. 3, the space between one end of the first link member 51 and the other end of the second link member 52 is widened so that the first link member 51 and the second link member 52 are substantially linear. extend. When the floating body 30 is deployed, the floating body 30 floats on the water surface by its buoyancy and moves up and down along the guide rail 2 while being supported by the opening / closing member 5 engaged with the guide rail 2 as the water surface rises and falls. To do. As shown in FIG. 2, when the floating body 30 is accommodated, the length of the drive cylinder 55 is shortened. As a result, as shown in FIG. 4, the gap between one end of the first link member 51 and the other end of the second link member 52 is narrowed, and the angle between the first link member 51 and the second link member 52 is substantially perpendicular. To. 3 and 4, the drive cylinder 55 is omitted.

  As shown in FIG. 5, each floating body 30 constituting the floating body structure 3 has a rectangular shape having a length of 2000 mm, a width of 2000 mm, and a thickness of 300 mm. In the floating body 30, a polypropylene plate member 7 and a polypropylene connecting plate 8 are assembled in a braided structure, and a resin foam 31 made of expanded polystyrene is accommodated therein.

  As shown in FIG. 6, the plate member 7 is a long plate-like plate portion 70 having a width of 250 mm and a thickness of 40 mm, and is formed at both ends of the plate portion 70 so that the surface is flush with the surface of the plate portion 70. None Thick portion 71 having a maximum thickness of 100 mm protruding to the back surface side, and a head having a thickness of 40 mm having a surface having the same shape as the end surface of the thick portion 71 formed at a position 40 mm away from the end surface of the thick portion 71. It is comprised from the part 72 and the neck part 73 of thickness 40mm which connects the thick part 71 and the head 72. As shown in FIG. A slit 75 having a width of 40 mm and a depth of 60 mm is formed between the thick portion 71 and the head 72, and the back surface of the neck portion 73 is flush with the back surface of the thick portion 71. A first groove 74 having a width of 40 mm and a depth of 60 mm communicating with the slit 75 is formed on both sides of the neck portion 73.

  The connecting plate 8 is formed of a prismatic central portion 80 having a length of 100 mm, a width of 250 mm, and a thickness of 80 mm, and a pair of 60 mm, a width of 250 mm, and a thickness of 40 mm. The side part 81 and the central part 80 and the neck part 82 having a thickness of 40 mm for connecting the side part 81 are configured. The side portion 81 and the neck portion 82 constitute a flat surface that is flush with the back surface of the central portion 80, and the surface of the central portion 80 is one step higher than the side portion 81 and the neck portion 82. A second groove 83 having a width of 40 mm and a depth of 60 mm is formed on both sides of each neck portion 82.

  As shown in FIG. 6, the plate member 7 and the connecting plate 8 are assembled as follows. First, the two plate members 7 are arranged up and down so that the back surfaces having the thick portions 71 face each other, and the resin foam 31 molded into a predetermined shape is arranged therebetween. Next, the connecting plate 8 is prepared, the upper and lower second grooves 83 are aligned with the upper and lower first grooves 74, and the upper and lower side portions 81 are inserted into the upper and lower slits 75, respectively. As a result, half of the connecting plate 8 is assembled to the plate member 7. By performing this on both sides in the longitudinal direction and the width direction of the plate member 7, a unit frame body in which the two plate members 7 and the four connecting plates 8 are assembled is formed.

  In this unit frame body, as shown in FIG. 7, the side portions 82 of the two connecting plates 8 are arranged in a state where each of the side portions 82 abuts each other in the slit 75, and the neck portion 73 engages with the second groove 83. The neck portion 82 is engaged with the first groove 74. The surfaces of the head 72 and the central portion 80 are flush with each other.

  Then, by attaching the next two upper and lower plate members 7 to the four connecting plates 8 projecting halfway in the width direction from the plate member 7, and further attaching the next connecting plate 8, the unit frame body is When connected one after another and assembling a predetermined number, a main body 35 shown in FIG. 5 is formed.

  The main body 35 is plate-like as a whole, and the front and back surfaces and the left and right side surfaces are all flush with each other. There is no part. The left and right ends are heavy due to the presence of the thick portion 71 and the connecting plate 8, and the resin foam 31 is disposed in a large volume in the inside to be lightweight. And when floating on the water, the entire back surface comes into contact with the water surface, so high buoyancy can be secured, and the weight is also moderate, so about 100 mm of the total thickness of 300 mm is submerged in water and about 200 mm is on the water surface Exists. Therefore, the height above the water surface can be ensured while being thin, and it is optimal for getting on and off a boat. In addition, since the weight is moderate, it is possible to avoid a problem that the other end is lifted and tilted even when a load is biased at one end when a person gets on, and the stability is high.

  By the way, in the said main body 35, the connection board 8 protrudes in the end surface, and the resin foam 31 is exposed. Therefore, as shown in FIG. 8, if a terminal connecting plate 8 ′ having a shape obtained by cutting the connecting plate 8 in half is formed, there can be no protrusion from the end face. Further, as shown in FIG. 9, it is also preferable that a terminal member 89 having engaging portions 87 and 88 that engage with the connecting plate 8 is assembled to the terminal of the main body 35. Thereby, since the surface exposed to the terminal of the resin foam 31 can be covered and the entire surface can be made of the same material, a sense of unity is improved and design is also improved. The terminal member 89 is composed of 4 pieces and is made of the same material as the main body 35.

  Moreover, in the said main body 35, when the engagement strength of the board member 7 and the connection board 8 is weak, isolation | separation may arise between both. Therefore, it is preferable to fasten the main body 35 and the terminal member 89 using a metal brace as shown in FIG. In the metal brace, two horizontal braces 90 and two vertical braces 91 are arranged in the upper and lower portions in the main body 35. Since the end portions of the horizontal brace 90 and the vertical brace 91 penetrate the two projections 86 provided on the terminal member 89 and project to the outside, a substantially L-shaped metal fitting 92 is disposed so as to cover the projection 86. And the main body 35 and the terminal member 89 are firmly fastened by letting the protrusion end part penetrate the through-hole of the metal fitting 92 and fastening with the nut 93 from the outside. In addition, as shown in FIG. 11, the through groove 84 may be formed on the surface of the central portion 85 of all the connecting plates 8, and the vertical brace 91 may be arranged along the through groove 84.

  Further, when the main bodies 35 are connected to be long or wide, the protruding end portion of the horizontal brace 90 or the vertical brace 91 shown in FIG. A pair of main bodies 35 can be connected to each other using a nut (not shown). Thereby, the unit which consists of the main body 35 and the terminal member 89 of the both ends can be freely connected vertically and horizontally. In this case, since the horizontal brace 90 or the vertical brace 91 protrudes above the main body 35, the other main body 35 can be easily connected to the main body 35 in a state of riding on the one main body 35. Moreover, since the protrusion 86 of the terminal member 89 is formed in the back from the outer peripheral surface of the main body 35, a metal brace does not protrude outside and there is no possibility that a ship etc. will be damaged.

  Further, when the metal braces protruding below the terminal member 89 are also connected by the connecting metal fitting 95, the positions of the lower protrusion 86 and the upper protrusion 86 are shifted as seen from above, so that the person can move the body. Both nuts can be easily operated in the state of riding on 35. Using the connecting bracket 95 or a metal brace protruding therefrom, it is possible to moor a plurality of connected units on a quay or the like, or to attach an old tire or the like to alleviate the impact caused by a collision with a ship or the like. is there.

  In the above-described embodiment, the shape of the plate member 7 and the connecting plate 8 is devised so that no convex portion exists on the surface of the main body 35, but the plate member 41 and the connecting plate 42 as shown in FIG. 13 are used. It may be assembled. In this case, since the side portion 43 of the connecting plate 42 continuously protrudes from the upper and lower surfaces of the main body 35, the side portion 43 functions as a fence that prevents the articles placed on the surface of the plate member 41 from falling.

  When the floating body 30 is in the retracted state, two long fenders 6 are fixed on the surface of the floating body 30 facing the coast opposite to the revetment 1 at positions spaced apart from each other in parallel. ing. The fender 6 is made of a resilient material such as rubber and relieves the impact when the ship collides with the floating structure 3.

  In the present embodiment, the floating structure 3 is supported by the guide rail 2 via the opening / closing member 5 so as to be opened and closed. For this reason, the floating body structure 3 can be expanded when necessary, and stored when not necessary.

  The sliding protrusion 52b of the second link member 52 is connected to the guide rail 2 so as to be movable up and down. For this reason, the floating structure 3 can be moved up and down as the water surface rises and falls.

  The floating structure 3 is moored on the revetment by the guide rail 2 and the opening / closing member 5. For this reason, the structure is simple. The mounting work of the floating structure 3 on the revetment 1 is also easy.

  The opening / closing member 5 is a link mechanism including a first link member 51 and a second link member 52. For this reason, a floating structure can be opened and closed with a simple configuration. In addition, since the opening / closing member 5 is opened and closed using the drive cylinder 55, the opening / closing operation of the floating structure 3 is easy. Further, the first and second link members 51 and 52 extend substantially parallel to the extending direction of the side surface 30b of the floating body 30 when the floating body 30 is deployed. For this reason, it does not hinder a person or vehicle passing on the floating body 30.

  In the floating body structure 3, a plurality of floating bodies 30 are arranged in series, and a plurality of guide rails 2 are arranged in pairs along the extending direction of the floating body structure 3. For this reason, the floating body structure 3 extending along the revetment 1 is supported by the plurality of opening / closing members 5 and the guide rail 2. Therefore, the floating structure 3 can be stably held on the revetment 1.

  The opening / closing member 5 is connected to the revetment 1 side of the side surface 30b extending in a direction away from the revetment 1 of the floating body 30. For this reason, as shown in FIG. 3, the amount of protrusion of the opening / closing member 5 to the surface of the floating body 30 in the unfolded state is small and slightly protrudes to the end portion on the revetment side. For this reason, the opening / closing member is unlikely to obstruct the passage of people or vehicles.

  The rotation shaft 51a of the first link member 51 of the opening / closing member 5 is connected to the recess 30a formed on the side surface 30b of the floating body 30, and the opening / closing member 5 is accommodated in the recess 30a. For this reason, the offshore sides of the side surfaces of the floating bodies 30 are brought into contact with each other, and the floating bodies 30 can be continuously arranged. For this reason, it becomes easy for a person or a vehicle to pass on the floating body structure 3 in which the floating bodies 30 are continuously arranged.

  Each floating body 30 constituting the floating structure 3 continuously connects a pair of upper and lower plate members 7 and a connecting plate 8 disposed on the left and right in the longitudinal direction of the floating structure 3. The main body 35 having a hollow portion is formed by passing, and the resin foam 31 is disposed in the hollow of the main body 35. For this reason, the floating body 30 has an appropriate mass to some extent, and the balance with the buoyancy is also appropriate. For this reason, even if an object having a certain mass is placed on the floating body 30, the floating body 30 can float in a well-balanced manner without sinking in water.

  Further, the length in the extending direction of the main body 35 of the floating structure 3 can be adjusted by the number of the plate members 7 and the connecting plates 8. Therefore, design freedom is high. The main body 35 can be easily formed simply by combining the plate member 7 and the connecting plate 8, and it is only necessary to manufacture a large number of the plate member 7 and connecting plate 8 in advance. It becomes. In addition, each surface of the connecting plate 8 that is exposed can be easily made flush with the surface of the plate member 7, so that no convex portions are formed on the surface of the main body 35, and the side surfaces of the main bodies 35 are in close contact during connection. Steps and gaps are also prevented. Therefore, it is possible to prevent obstacles to walking and obstacles to the ship. Moreover, since the main body 35 can be manufactured from a thermoplastic resin and the resin foam 31 can also be manufactured from a thermoplastic resin, it is excellent in recyclability.

  In the present embodiment, polypropylene is used as the plate member 7 and the connecting plate 8 of the floating body 30, but the plate member 7 and the connecting plate 8 can be manufactured from various resin materials such as PE and ABS. As the molding method, injection molding, press molding, or the like can be used. It is also preferable to mold using a recycled resin. The resin foam 31 uses foamed polystyrene, but the resin foam 31 can also be formed from various foamed resins such as foamed polypropylene and foamed urethane.

  In this embodiment, although the 1st link member 51 and the 2nd link member 52 were used as the opening / closing member 5, as shown in FIG.14, FIG.15, as the opening / closing member, it is in the bank protection 1 side of the side surface 30b of the floating body 30. A connecting member 57 that is rotatably connected may be used. The connecting member 57 is a long member and is accommodated in a recess 30 a formed on the side of the side of the floating body 30 on the bank protection side. A rotating shaft 57 a is projected from one end of the connecting member 57. The rotation shaft 57a is rotatably fitted in a fitting hole formed in the recess 30a on the side surface of the floating body 30. On the other end of the connecting member 57 near the revetment 1, a sliding projection 57b is provided. The sliding protrusion 57b is slidably engaged with the guide groove 20 formed in the guide rail 2. Grooves 57c extending in the circumferential direction are formed on the outer peripheral surface of the sliding protrusion 57b. A lifting member 23 such as a chain, a wire, or a rope is wound around the groove 57c. The lifting member 23 is inserted through the guide groove 20 and is held by a winding device 25 installed on the revetment 1 above. A side surface of the floating body 30 facing the revetment 1 is covered with a string-proof material 36 except for a portion facing the guide rail 2. Further, a rotatable roller 65 is provided at a portion of the floating body 30 facing the guide rail 2. The roller 65 is in contact with the outer surface of the guide rail 2 and rotates to smoothly move the floating body 30 up and down relative to the guide rail 2.

  As shown in FIGS. 14A and 15, when the floating body 30 is deployed, the lifting member 25 is lowered downward by the hoisting device 25, and each floating body 30 is lowered to the water surface together with the connecting member 57. As shown in FIG. 14B, when the floating body 30 is accommodated, the lifting member 23 is raised by the winding device 25 to suspend each floating body 30. Also in this case, since the connecting member 57 extends substantially parallel to the extending direction of the side surface of the floating body 30 when the floating body 30 is deployed, it does not hinder a person or vehicle passing on the floating body.

  14 is connected to the sliding protrusion 52b of the second link member 52 of the embodiment shown in FIG. It is also possible to move up and down along the guide rail 2.

  In the above embodiment, the open / close members 5 are connected to the left and right side surfaces of each floating body 30, but one open / close member is connected to both side surfaces facing each other in the adjacent floating body 30. It is also possible to support the other end of 5 on the guide rail 2 so as to be movable up and down. In this case, the number of the opening / closing members and the guide rails can be halved compared to the case where the opening / closing members and the guide rails are arranged on the left and right side surfaces of each floating body.

  As shown in FIGS. 16 and 17, the floating pier of the second embodiment includes a guide rail 2 that can be fixed to the revetment 1, a floating structure 3, and a guide rail 2 and a floating structure 3. And an opening / closing member 5 for connecting the two. The opening / closing member 5 includes a carriage 6, a lifting member 23, and stop rollers 48 and 49 as holding portions.

  The guide rail 2 is made of metal and has a long shape, and extends in a direction inclined with respect to the revetment 1. In order to fix the guide rail 2 to the revetment 1, one end of the support member 21 is connected to two places in the extending direction of the guide rail 2. The other end of each support member 21 is fixed to the revetment 1. Among the support materials 21 fixed in two places, the support material 21 disposed on the upper side is shorter than the support plate 21 disposed on the lower side. For this reason, the guide rail 2 is inclined and fixed to the revetment 1 at a predetermined inclination angle θ. The inclination angle θ of the guide rail 2 with respect to the revetment 1 is preferably more than 0 ° and not more than 20 °. When it is larger than 20 °, the floating structure 3 is stably supported by the guide rail 2, while the lower side of the guide rail 2 is separated from the revetment 1, and the guide rail 2 is stably fixed to the revetment 1. May be difficult to do.

  The floating body structure 3 is composed of one floating body 30 in the present embodiment. The configuration of the floating body 30 is the same as that of the first embodiment. At the time of storage, the guide rails 2 are disposed in the vicinity of both the left and right sides of the bottom of the floating body 30. As shown in FIG. 18, the pair of guide rails 2 are connected by a plurality of connecting members 22 at a predetermined interval. Between the connecting members 22 in the pair of guide rails 2, two reinforcing members 22 a intersecting in an X shape are connected to increase the strength of the guide rails 2. The two reinforcing members 22a have notches (not shown) formed in the intersecting portions 24, and are intersected in the X shape by being fitted into the notches. Furthermore, the bottom plate 25 is welded to the bottom of the intersecting portion 24 in order to improve the strength.

  As shown in FIGS. 19 and 20, a U-shaped fixing member 41 is fastened with a bolt at the center of the side surface of the floating body 30 that faces the revetment 1 during storage. A pair of first projecting portions 42 projecting in a triangular shape from the fixing member 41 toward the revetment 1 project in the left-right direction on the paper surface of FIG. Guide rollers 43 and 44 are rotatably supported near the top and the lower edge of the pair of first protrusions 42. A shaft portion 45 projects from the top of the first protrusion 42 toward the outside in the axial direction. The shaft portion 45 is disposed at a position facing away from the guide roller 43 provided on the top portion.

  Further, as shown in FIGS. 19 and 21, a U-shaped fixing member 46 is fastened with a bolt at the center of the side surface arranged on the offshore side of the floating body 30 during deployment. A pair of second projecting portions 47 projecting in a parallelogram shape from the fixing member 46 toward the revetment 1 project in the left-right direction on the paper surface of FIG. An upper stop roller 48 and a lower stop roller 49 are rotatably supported side by side along the vertical direction at the peripheral edge of the pair of second protrusions 47. The stop rollers 48 and 49 correspond to a holding portion that holds the lifting member 23 of the present invention. Each of the stop rollers 48 and 49 is arranged between the second protrusions 47, and is composed of rollers 48a and 49a having tapered surfaces that gradually decrease in the radial direction toward the left and right central portions in FIG. Yes. The lifting member 23 is sandwiched and fixed between the rollers 48 a and 49 a, and the lifting member 23 is held by the floating body 30. The lifting member 23 is a wire. A weight 23 d is connected to the tip of the lifting member 23.

  At the time of storage, the floating body 30 is disposed on the carriage 6. As shown in FIG. 22, the cart 6 is made of metal. The cart 6 includes a quadrangular frame 61, a reinforcing member 62 that diagonally connects between corner portions of the frame 61, and a support member 63 that is fixed at the center in the left-right direction. On the left side of the frame 61, rollers 64a and 66a are rotatably supported at the front and rear, respectively. A front roller (not shown) and a rear roller 66b are rotatably supported on the right side of the frame 61. As shown in FIG. 24, the left and right rollers 64a and 66a at the front and rear are fitted to the left guide rail 2 having a U-shaped cross section and are held so as to be movable in the extending direction. The front roller (not shown) and the rear roller 66b are fitted to the right guide rail 2 having a U-shaped cross section and are held so as to be movable in the extending direction.

  As shown in FIGS. 20 and 22, a pair of bearing portions 67 project from the front side of the support member 63 at the center of the carriage 6. Between the pair of bearing portions 67, a first protrusion 42 fixed to the floating body 30 is disposed. The shaft portion 45 of the first projecting portion 42 is fitted into a through hole 67 a formed in the bearing portion 67, and is held so as not to fall off by a bolt 45 a fixed to the tip of the shaft portion 45.

  The operation of the floating pier of this embodiment will be described. As shown in FIG. 16, when the floating body structure 3 is not used, the lifting member 23 is wound up by the manual lifting device 25 to lift the floating structure 3. The cart 6 on which the floating body structure 3 is placed is guided by the guide rail 2 and rises. The floating body structure 3 is moved upward. When the hoisting device 25 is stopped, the ascent of the floating structure 3 is stopped.

  As shown in FIG. 17, when the floating body structure 3 is used, the lifting member 23 is unwound by the hoisting device 25. The floating body structure 3 descends along the guide rail 2 while riding on the carriage 6. When lowered to the water surface W.L., the floating structure 3 floats on the water surface W.L. due to its own buoyancy, and is deployed parallel to the water surface W.L. Since the 1st protrusion part provided in the front side of the floating body structure 3 is rotatably supported by the bearing part 67 of the trolley | bogie 6, the floating body structure 3 is the trolley | bogie 6 even if it floats on the water surface WL. It is connected. The carriage 6 is held on the guide rail 2. For this reason, the floating structure 3 is developed on the water surface W.L. while being supported by the guide rail 2.

  In the present embodiment, the guide rail 2 extends in a direction inclined with respect to the revetment 1. The floating structure 3 when not in use is stably supported with respect to the guide rail 2.

  The opening / closing member 5 includes a carriage 6, a lifting member 23 that lifts the floating body structure 3, and stopper rollers 48 and 49 (holding portions) that hold the lifting member 23 fixed to the floating structure 3. When not in use, the floating structure 3 is pulled up and stored by the lifting member 23. By further lifting the lifting member 23, the floating structure 3 can be lifted along the guide rail 2. At the time of use, the floating body structure 3 is lowered by the lifting member 23, and the floating structure 3 is floated and deployed. In this way, the floating structure 3 can be stored or deployed with a simple configuration.

  The opening / closing member 5 includes a carriage 6 that is movably supported by the guide rail 2 and is movable only in the extending direction of the guide rail 2. The carriage 6 is movably fitted to the guide rail 2 and does not leave the guide rail 2. On the other hand, the floating structure 3 is disposed on the carriage 6 when stored, but the floating structure 3 floats on the water away from the carriage 6 when deployed. When the lifting member 23 is pulled up, the floating structure 3 is placed on the carriage 6. When the lifting member 23 is pulled up, the cart 6 on which the floating body structure 3 is placed rises on the guide rail 2. For this reason, the floating structure 3 can be smoothly pulled up along the guide rail 2.

  The cart 6 has a bearing portion 67 that rotatably supports the floating structure 3. The floating body structure 3 is supported by the carriage 6 when deployed. The carriage 6 is disposed so as to be movable only in the extending direction of the guide rail 2 with respect to the guide rail 2. For this reason, the floating structure 3 is supported with respect to the guide rail 2 at the time of expansion | deployment. Therefore, the floating structure 3 is stably supported by the guide rail 2 even under a load such as a wave or wind.

  In the modification of the second embodiment, as shown in FIG. 25, the inclination angle θ of the guide rail 2 can be changed. The floating pier of this modification includes a support member 28 fixed to the revetment 1 and extending vertically on the revetment 1, a guide rail 2 rotatably supported on the upper end of the support member 28, and a support member 28. And a guide member 2 that can extend and contract between the guide rail 2. At the upper end portion of the guide rail 2, a rotation support portion 27 that is rotatably supported by the upper end portion of the support member 28 is provided. One end of the connecting member 29 is suspended by a wire 28 a inserted into the support member 28. The other end of the connecting member 29 is suspended by a wire 28b inserted through the guide rail 2. By adjusting the lengths of the wires 28a and 28b with the winding device 25 on the revetment 1, the vertical position of the connecting member 29 is adjusted.

  The connecting member 29 is made of a screw jack and can expand and contract itself. The connecting member 29 is always held horizontally by adjusting the pull-out amount of the lifting member 23.

  As the connecting member 29 expands and contracts, the inclination angle θ of the guide rail 2 with respect to the revetment 1 is changed. The connecting member 29 is, for example, a screw jack. When the connecting member 29 is extended, the inclination angle θ of the guide rail 2 with respect to the revetment 1 increases, and when the connecting member 29 is shortened, the inclination angle θ of the guide rail 2 with respect to the revetment 1 decreases.

  Further, the lifting member 23 that lifts the floating structure 3 is supported by a winding device 25 on the revetment 1. In this modification, the hoisting device 25 is of a motor type and automatically hoists or pulls down the hoisting member 23 and the wires 28a and 28b connected to the connecting member 29.

  In the second embodiment and this modification, the floating body 30 is configured by only one floating body 30, but the floating body structure 3 may be configured by a plurality of floating bodies 30. In this case, the cart 6 corresponding to the number of the floating bodies 30 and the guide rail 2 that supports the cart 6 so as to be movable up and down are used.

1: revetment , 2 : guide rail, 20: guide groove, 23: lifting member (first lifting member, second lifting member), 25: hoisting device, 28a, 28b: wire, 3: floating body structure, 5: Opening and closing member, 6: Bogie, 7: Plate member, 8: Connecting plate, 30: Floating body, 30a: Recessed part, 30b: Side surface, 31: Resin foam, 35: Main body, 36: String protection material, 55: Drive Cylinder, 57: connecting member.

Claims (9)

A guide rail that can be fixed to the revetment,
A floating body structure having a substantially flat surface that floats on the water surface in an expanded state and faces upward, and a side surface that forms an edge of the surface and extends in a direction away from the revetment;
One end is connected to the side surface of the floating structure, and the other end is supported so as to be movable up and down with respect to the guide rail, so that the floating structure is opened and closed to be stored. And an opening and closing member that can be
The opening / closing member has a first link member having one end rotatably connected to the side surface of the floating structure, and one end rotatably connected to the other end of the first link member. A floating pier characterized by comprising a second link member supported by a guide rail so as to be movable up and down . A guide rail that can be fixed to the revetment,
A floating body structure having a substantially flat surface that floats on the water surface in an expanded state and faces upward, and a side surface that forms an edge of the surface and extends in a direction away from the revetment;
One end is connected to the side surface of the floating structure, and the other end is supported so as to be movable up and down with respect to the guide rail, so that the floating structure is opened and closed to be stored. And an opening and closing member that can be
The opening / closing member has one end pivotably connected to the side surface of the floating structure and the other end supported by the guide rail so as to be movable up and down, and the other end of the connecting member is lifted A floating pier characterized by comprising a first lifting member that can be raised and lowered along the guide rail . The floating pier according to claim 1 or 2 , wherein the floating structure is extended along the revetment. A guide rail that can be fixed to the revetment,
A floating structure that floats on the surface of the water when deployed,
One end is connected to the floating body structure and the other end is supported so as to be movable up and down with respect to the guide rail, so that the floating body structure is opened and closed or closed. An openable / closable member,
In the floating body structure, a plurality of floating bodies are arranged in series, and one ends of the opening and closing members are respectively connected to the left and right side surfaces extending in a direction away from the revetment of each floating body. The other end of the opening / closing member connected to a side surface is supported by the guide rail, respectively . The floating pier according to claim 4 , wherein a concave portion for accommodating the opening / closing member is formed on the side surface of the floating body. A guide rail that can be fixed to the revetment,
A floating structure that floats on the surface of the water when deployed,
One end is connected to the floating body structure and the other end is supported so as to be movable up and down with respect to the guide rail, so that the floating body structure is opened and closed or closed. An openable / closable member,
The opening / closing member includes a carriage that has a pivot support portion that pivotally supports the floating structure, and is supported by the guide rail so as to be movable, and is guided by the guide rail to move up and down.
The opening / closing member further includes a second lifting member that lifts the floating structure so as to be movable up and down, and a holding portion that is fixed to the floating structure and holds the second lifting member.
When the floating structure is not used, the floating structure is placed on the carriage by lifting the second floating member and lifting the floating structure.
A floating pier characterized in that when the floating structure is in use, the second lifting member is pulled out to float the floating structure on the water . The guide rail, floating piers according to claim 1 which extends in a direction inclined with respect to the revetment. The floating body structure has a long plate shape, a resin plate member having a pair of first grooves at both ends facing each other from both sides in the width direction and extending toward the center in the width direction, and a short plate shape. None, having a pair of second grooves facing each other from both sides in the width direction and extending toward the center in the width direction, respectively, and a resin-made connecting plate,
A pair of the plate members are arranged vertically apart from each other, a pair of the connecting plates are arranged on both sides of the plate member so as to intersect the plate members, and the second groove is assembled in the first groove. By attaching, a plurality of unit frame bodies in which a pair of the plate members are fixed by the pair of connection plates are arranged in the width direction of the plate members, and the adjacent plate members are continuously connected by the connection plates. A main body having a hollow portion surrounded by a plurality of pairs of the plate members and a plurality of pairs of the connecting plates;
The floating bridge according to any one of claims 1 to 7 , further comprising a resin foam disposed in the hollow portion of the main body. When storing the water floating structure, on the surface of the water floating structure facing the offshore side opposite the seawall, according to any one of claims 1 to 8, fender is fixed Floating pier.

Images