JP4395309B2 - Floating bridge bridge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a floating bridge for a floating pier that is bridged between a revetment and a floating pier and is used for getting on and off a person's ship and transporting luggage.
[0002]
[Prior art]
Usually, a bridge is built between a revetment or a wharf (hereinafter simply referred to as a revetment) and a floating pier, and it is used as a connecting bridge for getting on and off a ship moored on the floating pier and loading and unloading luggage. In order to make the slope of the bridge bridge gentle when the height difference between the revetment and sea level is large, or when the tidal level fluctuation is large and the height difference from the revetment becomes large at low tide, ) And (b), the entire length is set long. In the figure, 1 is a floating pier, 2 is a revetment, 3 is a crossover bridge built between the floating pier 1 and revetment 2, and the floating pier 1 is installed in a predetermined water area of the sea surface with steel pipe piles 4, and the tide level changes It floats in a state where it can move up and down according to.
[0003]
When such a long bridge 3 is used, the occupied area of the bridge 3 becomes large and the effective use of the water area is restricted. In order to cope with such a problem, for example, a bridge having a structure shown in Patent Document 1 has been proposed. In the structure disclosed in this publication, an intermediate landing base located above the floating jetty surface is provided on the floating jetty, the first slope is provided between the quay and the intermediate landing base, and the first slope is provided between the intermediate landing base and the floating jetty. Two slopes are attached, and the first and second slopes are inclined in opposite directions.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-140522
[Problems to be solved by the invention]
The crossover bridge according to Patent Document 1 is simply divided into two slopes connected in a V-shape to shorten the linear distance from one end side to the other end of the crossover bridge. ) Is not shortened. Especially for wheelchair users, if the bridge is shortened, the gradient becomes steep and it becomes impossible to move in a wheelchair, and if the bridge is lengthened and the gradient is made gentle, the moving distance becomes long and a heavy burden is imposed. It will be. A steep slope or a long crossover is not preferable for a physically weak person such as an elderly person.
[0006]
The present invention has been made in consideration of such circumstances, and in particular, floaters that have both a short bridge length and a gentle slope that can be easily moved by wheelchair users, elderly people, etc., and can easily carry luggage. The bridge for the pier is provided.
[0007]
[Means for Solving the Problems]
According to the present invention (Claim 1), in a floating pier bridge bridged between a revetment and a floating pier, it is possible to get on and off in a state where the bridge is inclined and bridged between the revetment and the floating pier having a height difference. In order to be able to move between the revetment and the floating pier in a state of being substantially horizontally bridged, a boarding board that is lifted and lowered by a lift is attached to the bridge, and the drive control switch of the lift is connected to the revetment side, It is provided at three places on the floating pier side and the boarding / exiting platform. In such a configuration, a person who travels between the revetment and the floating pier will move on a crossover bridge that has a substantially horizontal or extremely gentle slope by raising and lowering the platform.
[0008]
In this invention (Claim 2), the boarding board is attached to the floating bridge side end part of the bridge. In such a configuration, people who move from the revetment to the floating pier first cross the bridge over the boarding platform in the ascending position (if the elevator is in the descending position, ride it over the crossover bridge) and descend it Let the height of the floating pier surface, then get off the boarding board and move to the floating pier. On the other hand, the person who moves from the floating pier to the revetment first gets on the boarding board at the lowered position (when the boarding board is in the raised position, lowers it) and raises the boarding board to the height of the bank, then it is almost horizontal. Or move to a revetment across a crossover bridge.
[0009]
In this invention (Claim 3), the boarding board is attached to the revetment side edge part of the bridge. In such a configuration, a person who moves from the revetment to the floating pier first gets on the boarding board at the rising position (when the boarding board is at the lowering position, it goes up) and lowers it to approximately the surface of the floating pier. After having the same height, move across the bridge to the floating pier. On the other hand, the person who moves from the floating pier to the revetment first rides over the crossing bridge to the boarding platform in the lowered position (when the boarding platform is in the elevated position, rides down after the crossing bridge) and revets the boarding platform. Raise to height and move to revetment.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
A floating bridge bridge according to the embodiment will be described below.
[0011]
1 (a) and 1 (b), 10 is a floating pier with four steel pipe piles 4 planted on the sea floor and connected at the four corners with a connector 11, and the tide level changes. Along with this, it is levitated and supported by the sea surface so that it can move up and down. 2 is a revetment, and 12 is a crossover bridge between the revetment 2 and the floating pier 10. 13 are handrails provided on the left and right sides of the bridge 12. Reference numeral 14 denotes a fixed boarding platform that is formed at the end of the bridge 12 on the side of the bank 2 to protrude from the bank 2.
[0012]
As shown in FIG. 2, the revetment side end of the bridge 12 is connected to a fixed boarding platform 14 via a hinge mechanism 15 so as to be rotatable. Reference numeral 16 denotes a pair of connecting shafts constituting a hinge, and 17 denotes a tread plate that closes a gap between the fixed boarding platform 14 and the bridge 12, and on the floating pier 10 side via a rotating shaft 31 provided on the back side thereof. Connected to the bridge 12 The portion of the tread board 17 on the fixed boarding board 14 side is only placed on the fixed boarding board 14. Therefore, even if the bridge 12 is rotated by the hinge mechanism 15, the tread plate 17 is always in contact with the fixed boarding platform 14. Reference numeral 18 denotes handrails provided on both sides of the fixed boarding board 14.
[0013]
Reference numeral 19 denotes a boarding / alighting platform formed at the end of the crossover bridge 12 on the side of the floating pier 10, and an elevator 20 is attached between the boarding / alighting platform 19 and the floating pier 10. As shown in FIGS. 3 and 4, the elevator 20 includes an arm 21 connected in an X shape, a hydraulic cylinder 22 that drives the arm 21, and a hydraulic unit 23. The lift of the platform 19 by the elevator 20 shows the maximum height difference between the revetment 2 and the surface of the floating pier 10. The boarding platform 19 is substantially flush with the surface of the floating pier 10 when descending, and rises to a position that is substantially the same height as the revetment 2 or slightly lower (the gradient is extremely small). In FIG. 1 (b), the state of the crossover when rising is indicated by a solid line and when being lowered by a chain line. Drive control switches for the elevator 20, that is, the hydraulic unit 23, are provided at three locations on the revetment 2 side, the floating pier 10 side, and the boarding platform 19. Reference numeral 21 denotes an opening / closing door provided on the boarding / alighting platform, which is closed when the boarding / alighting platform 19 is lifted so as to make the passengers safe. Reference numeral 30 denotes an inclined plate disposed on the floating pier 10 so as to be in contact with the boarding board 19 and eliminates a step between the boarding board 19 and the floating pier 10.
[0014]
A person who wants to move from the revetment 2 to the floating pier 10 operates the revetment side switch to raise the boarding platform 19 when the boarding platform 19 is in the lowered state. The moving person crosses the bridge 12 that is substantially horizontal and moves to the boarding / unloading platform 19, and then operates the switch of the boarding / unloading platform 19 to lower the platform 19. After the boarding platform 19 descends to the lowest position and stops, the door 21 is opened and moved to the floating pier 10. In addition, when the boarding / alighting platform 19 is in the raised position from the beginning, it is not necessary to operate the bank protection switch.
[0015]
In such a configuration, a person who intends to land on the revetment 2 from the floating pier 10 operates the floating pier side switch to lower the landing board 19 when the boarding board 19 is in the rising state. The moving person opens the door 21 and puts it on the boarding platform 19, closes the door 21 and operates the switch of the boarding platform 19 to raise the boarding platform 19. When the boarding platform 19 rises to approximately the same height as the two revetments, it stops and crosses the bridge 12 to land on the revetment.
[0016]
Next, a floating bridge bridge according to another embodiment of the present invention will be described with reference to FIGS. In FIGS. 5A and 5B, reference numeral 23 denotes an elevator provided at the revetment side end of the bridge 12, and the revetment boarding platform 24 moves up and down by the elevator 23. The boarding platform 24 and the bridge 12 are rotatably connected by a hinge mechanism similar to that described above. The end of the bridge 12 on the floating pier side is a free end and is in contact with the surface of the floating pier 10, and slidably moves on the surface of the floating pier 10 as the platform 24 moves up and down. A roller can be provided on this crossover side contact surface, and the crossover end can be moved smoothly with low resistance. Reference numeral 25 denotes a pair of steel guide columns fixed to the side wall of the revetment 2 and has an H-shaped cross section as shown in FIG. A steel support 26 is fitted to the guide column 25 so as to be movable up and down, and is fixed to the boarding platform 24. Reference numeral 27 denotes a chain hoisting machine fixed to the top of the guide column 25, and the lower end of the chain 28 suspended from the chain hoisting machine is connected to the platform 24. The chain hoisting machine 27 functions as an elevator for the boarding platform 24.
[0017]
Thus, the platform 24 can be moved up and down by forward / reverse driving of the chain hoisting machine 27. The lifting height of the boarding platform 24 by this elevation is based on the maximum height difference between the revetment 2 and the floating pier 10, and the platform 24 is substantially the same as or slightly higher than the surface of the floating pier 10 when descending (the gradient is extremely small). ) Position. In FIG.5 (b), the state of the bridge 12 at the time of a fall with a continuous line and the time of a raise with a chain line is shown. The drive control switches of the chain hoisting machine 27 are provided at three locations on the revetment 2 side, the floating pier 10 side, and the boarding platform 24. Reference numeral 29 denotes an opening / closing door provided on the boarding / alighting platform 24, which is closed when the boarding / alighting platform 24 is raised so as to make the passengers safe.
[0018]
In such a configuration, a person who intends to move from the revetment 2 to the floating pier 10 operates the revetment side switch to raise the get-on / off platform 24 to the height of the revetment surface when the boarding / unloading platform 24 is in the lowered state. The moving person transfers to the boarding / alighting platform 24 and operates the switch of the boarding / alighting platform 24 to lower the boarding / alighting platform 24. When the boarding platform 24 is substantially the same height as the floating pier, the switch of the boarding platform 24 is operated to stop the descent, and the door 29 is opened to move to the floating pier 10. Note that when the boarding platform 24 is in the raised position from the beginning, it is not necessary to operate the bank protection switch.
[0019]
A person who intends to land on the revetment 2 from the floating pier 10 operates the floating pier side switch to lower the landing board 24 when the boarding board 24 is in the rising state. The mover crosses the bridge 12 and opens the door 29 and places it on the boarding / alighting platform 24, closes the door 29, and operates the 24 boarding / alighting switches to raise the boarding / alighting platform 24. Stop when the boarding platform 24 rises to the revetment 2 and land on the revetment 2.
[0020]
【The invention's effect】
According to the present invention, it is possible to get on and off in a state where the bridge is inclined and bridged between the seawall and the floating pier with a difference in height, while it is movable between the bank and the floating pier in a state of being bridged substantially horizontally. Therefore, since the boarding board which goes up and down by the elevator is attached to the bridge, the length can be set without taking the slope of the bridge into consideration regardless of the height difference between the revetment and the floating pier. Therefore, the floating pier can be installed as close as possible to the revetment, and the length of the bridge can be shortened accordingly. In addition, since the bridge can be horizontal or extremely gentle, it is possible to cross the bridge without much difficulty, especially for wheelchair users or elderly people such as the physically weak. In addition, it is safe and easy to carry the luggage because there is no burden on the operator. Furthermore, since the drive control switch of the elevator is provided at three locations on the revetment side, the floating pier side, and the boarding / exiting platform, regardless of whether the boarding / elevating state of the boarding / elevating / lowering platform is elevated, Can cross the bridge without borrowing the other side.
[Brief description of the drawings]
1A and 1B are diagrams showing a floating bridge bridge according to an embodiment of the present invention, in which FIG. 1A is a plan view and FIG. 1B is a front view;
FIG. 2 is a plan view showing a portion A in FIG.
FIG. 3 is a front view showing an elevator.
FIG. 4 is a side view showing an elevator.
FIGS. 5A and 5B are diagrams showing a floating bridge bridge according to another embodiment, wherein FIG. 5A is a plan view and FIG. 5B is a front view.
FIG. 6 is a front view showing an elevator portion of the floating bridge bridge.
FIG. 7 is a side view showing an elevator portion of the floating bridge bridge.
FIG. 8 is a plan view showing a portion B in FIG.
9A and 9B are diagrams showing a floating bridge bridge according to a conventional example, where FIG. 9A is a plan view and FIG. 9B is a front view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 10 ... Floating pier 2 ... Revetment 3, 12 ... Cross bridge 14 ... Fixed boarding platform 15 ... Hinge mechanism 19, 24 ... Boarding platform 20, 23 ... Elevator 25 ... Guide support | pillar 27 ... Chain winding machine 28 ... Chain

Claims (3)

In the bridge for floating piers bridged between the revetment and the floating pier, it is possible to get on and off in a state where the bridge is inclined and bridged between the revetment and the floating pier with a difference in elevation, while it is in a state of being bridged substantially horizontally In order to make it possible to move between the revetment and the floating pier, a boarding board that is lifted and lowered by an elevator is attached to the bridge, and the drive control switches of the elevator are 3 on the revetment side, the floating pier side, and the boarding board. A floating bridge for floating piers. The floating bridge crossing bridge according to claim 1, wherein the boarding board is attached to an end of the crossing bridge on the floating pier side. The floating bridge crossing bridge according to claim 1, wherein the boarding board is attached to an end portion of the bridge over the revetment side.

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