JP2012211445A - Ship embarkation/disembarkation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ship embarkation/disembarkation device easy to handle and excellent in safety.SOLUTION: A ship embarkation/disembarkation device is equipped with a communication bridge 7 of which one end is supported by a support 5 supported on a body carriage 3. The body carriage 3 has a frame 9 mounted with casters 13 at its bottom and two rails 11 mounted on the upper part of the frame. The two rails are horizontally installed in parallel such that grooves 27 each formed by bending both ends of each plate in the same direction face each other. The support 5 has a traveling carriage 29 moving along the two rails and a rotor 31 supported by the traveling carriage. The traveling carriage has a plurality of axles 35 each having both ends accommodated in the grooves 27 of the rails 11. The rotor 31 is supported so as to be rotatable around a shaft 43 orthogonal to a horizontal direction provided in the upper part of the traveling carriage. The communication bridge 7 is formed such that its base end side is supported to be rotatable around a horizontal shaft provided in the rotor and its front end side can be locked to a ship.

Description

  The present invention relates to a ship getting on / off device that bridges a ship and land.

  A connecting bridge for people to pass is passed between the ship on the shore and the land. In general, one end of the connecting bridge is supported by a gantry built on land, and the other end is installed or hooked at a predetermined position of a ship and is suspended by a wire unwound from a hoist.

  In this type of connecting bridge, one end of the connecting bridge is supported so as to be rotatable around a horizontal axis provided on a land base, and a wheel is provided at the lower part of the other end, and the wheel is grounded on the upper surface of the ship. There is a known structure (see Patent Document 1). When the ship swings up and down due to tides, etc., the connecting bridge with such a structure swings up and down around the horizontal axis as the other wheel rolls on the upper surface of the ship. It is like that.

  On the other hand, in addition to such vertical swinging of a ship, there is known a structure of a connecting bridge that operates following a horizontal (front / rear / left / right) movement (see Patent Document 2). One end of this connecting bridge is supported by a turntable provided on a gantry on land, and can be rotated in the horizontal direction integrally with the turntable, and around a horizontal axis connected to the turntable. It is designed to rotate up and down. The connecting bridge includes a fixed bridge supported by the turntable and a moving bridge that is slidably housed inside the fixed bridge. The other end of the connecting bridge is hooked to a fixed base installed on the ship deck.

  The connecting bridge configured in this manner is rotated around the horizontal axis when the ship swings in the vertical direction, and swings up and down. Turn horizontally. Further, when the ship moves in a direction perpendicular to the direction in which the ship moves forward and backward, for example, in a direction away from the land, the moving bridge slides in a direction away from the fixed bridge, so that the total length of the connecting bridge is increased. As described above, the connecting bridge moves following the vertical swing or horizontal movement of the moored ship, so that it is possible to prevent the fall of the person by suppressing the inclination of the connecting bridge.

Registered Utility Model No. 3159118 JP 2009-281065 A

  By the way, each of the connecting bridges of Patent Documents 1 and 2 has a structure in which one end is supported by a gantry on the land and is fixed to the land. The connecting bridge fixed to the land in this way is usually used for getting on and off a relatively large ship.

  On the other hand, when getting on and off a relatively small ship such as a coastal ship, the distance between the moored ship and the land is short and the amount of cargo is relatively small. A simple plate material such as a walk board that bridges between the ship and the land is used as a communication passage.

  However, such a communication path cannot cope with the movement of the ship in the vertical direction or the horizontal direction, and becomes unstable when the ship moves, so that safety becomes a problem. Therefore, there is a need for a connecting bridge that can be used for getting on and off a relatively small ship, is easy to handle, and has high safety.

  An object of the present invention is to provide a marine boarding / alighting device that is easy to handle, highly versatile, and highly safe.

  The ship boarding / exiting device of the present invention bridges between a ship and land, and in order to solve the above problems, a main body carriage, a support body supported on the main body carriage, and one end of the support body. And a connecting bridge to be supported. Here, the main body cart has a frame with a wheel attached to the bottom and two rails attached to the top of the frame, and the two rails are formed by bending both ends of the plate material in the same direction. The grooves to be formed are installed in parallel and horizontally so as to face each other. The support body includes a traveling carriage that moves along two rails and a rotating body that is supported by the traveling carriage. The traveling carriage includes both ends or axles of a plurality of axles that are parallel to the traveling carriage. Wheels provided on both ends of the vehicle are respectively accommodated in the groove of the rail, and the rotating body is rotatably supported around an axis orthogonal to the horizontal direction provided in the upper part of the traveling carriage. The connecting bridge is formed so that the base end side thereof is rotatably supported around a horizontal axis provided on the rotating body, and the tip end side is hookable on the ship.

  In this way, the center of gravity of the entire apparatus can be stabilized by supporting the support body on the main body carriage and providing the support body with all the functions of moving the connecting bridge. Thereby, since it becomes possible to move the land while supporting the connecting bridge, it is possible to adjust the installation position of the connecting bridge according to the position where the ship is moored or the like. Therefore, compared with the connecting bridge fixed to the land, it is excellent in handleability and can have versatility.

  In addition, when the ship swings in the vertical direction, one end of the connecting bridge rotates around the horizontal axis provided on the rotating body, and when the ship moves in a direction in which the ship moves forward and backward, it is provided at the top of the traveling carriage. A rail on which a traveling carriage that supports the rotating body is arranged toward the direction of the ship when the rotating body rotates around an axis orthogonal to the horizontal direction and moves in a direction orthogonal to the direction in which the ship advances and retreats. Move along the groove. Therefore, even if the vessel moves in either the vertical direction or the horizontal direction, the connecting bridge can be moved following the movement of the vessel, so that the connecting bridge can be prevented from being damaged or a passerby to fall over. And high safety can be maintained.

  In this case, the connecting bridge includes a plurality of frames extending in parallel in pairs in the longitudinal direction and a plurality of frames that are supported between the frames and that maintain a horizontal state regardless of the rotation of the connecting bridge. Steps are provided, and the steps are provided stepwise in the longitudinal direction.

  According to this, even when the connecting bridge rotates up and down, since the steps constituting the passage of the connecting bridge are kept horizontal, it is possible to prevent the passers-by from falling and to pass smoothly.

  In addition, the connecting bridge is provided with a hooking member that is hooked to the ship on the bottom surface on the tip side, and this hooking member has two flat projections in a direction perpendicular to the longitudinal direction of the connecting bridge. It is assumed that the two protrusions are formed so as to face each other at an angle of a right angle or less with respect to the opposing surfaces facing each other and the bottom surface inside the opposing surfaces.

  According to this, for example, with respect to the frame material standing on the deck of the ship, etc., only the top portion of the connecting bridge is covered from above the frame material so that the frame material is positioned between the two projections. The tip of the connecting bridge can be hooked to the frame with a simple operation. Further, since the two projecting portions are formed such that the opposing surfaces facing each other and the bottom surface therebetween are formed at an angle of a right angle or less, for example, when the connecting bridge is obliquely passed from above or below to the frame material Since the frame member is hooked between any one of the protrusions and the bottom surface, the frame member can be prevented from dropping from the protrusions.

  In addition, the connecting bridge is supported by being suspended by a wire hung through the upper part of a support erected on the main body carriage, and the main body carriage is provided with a hoisting machine for winding and lowering the wire. Shall be.

  In this way, when the connecting bridge is bridged between the land and the ship by suspending the connecting bridge with wires, or when the traveling carriage is moved by lifting the connecting bridge, only the hoisting machine is operated. Because the bridge can be raised and lowered, the operation becomes easy.

  Also, the main body carriage is provided with an L-shaped bracket that is hooked on a convex edge provided on the land, and the base end side of the bracket is rotatably supported around the horizontal axis of the main body carriage. And

  According to this, the main body cart is fixed to the land by rotating the L-shaped metal fitting around the horizontal axis and hooking the metal fitting on the curb so that the curb is interposed between the main car and the metal fitting. can do. In addition, a metal fitting can be easily removed from a curb stone by rotating around a horizontal axis.

  According to the present invention, it is possible to provide a ship boarding / alighting device that is easy to handle, highly versatile, and highly safe.

It is a side view explaining the structure of the ship boarding / alighting apparatus which concerns on this invention. It is a top view explaining the structure of the ship boarding / alighting device which concerns on this invention. It is a rear view explaining the structure of the ship boarding / alighting device which concerns on this invention. It is an assembly drawing explaining the structure of the ship boarding / alighting device which concerns on this invention. FIG. 5 is a cross-sectional view of the traveling carriage of FIG. 4 as viewed from the rail extending direction when the traveling carriage is supported by the rail. It is a figure when connecting a bridge over a ship at low tide. It is a figure when connecting a bridge over a ship at the time of high tide.

  Hereinafter, an embodiment of a ship getting on and off apparatus according to the present invention will be specifically described with reference to FIGS. 1 to 5.

  The marine boarding / alighting device 1 according to this embodiment includes a main body cart 3, a support 5 supported on the main body cart 3, and a connecting bridge 7 that is cantilevered on the support 5.

  As shown in FIG. 4, the main body cart 3 includes two frames 9, two rails 11 attached to the upper portions of both frames 9, and casters 13 respectively attached to the bottom surfaces of both ends of both frames 9. It is prepared for. The frame 9 is made of a general steel material such as groove steel. Each frame 9 is arranged in parallel with each other, and two rails 11 are attached to the upper surfaces thereof so as to be orthogonal to the longitudinal direction thereof. The frame 9 and the rail 11 are fixed to each other by welding or the like.

  The bottom surface of each frame 9 is provided with two fork pockets 15 each having a predetermined length of a rectangular cross section into which a fork of a forklift is inserted. A receiving member 17 that supports the cover plate 19 (FIG. 2) is provided on the surfaces of the two frames 9 facing each other. The receiving member 17 is made of angle steel with an L-shaped cross section.

  A cover plate 97 (FIG. 2) having a predetermined size (width) is provided on the upper surface of the rail 11 and serves as a scaffold for passers-by who cross the connecting bridge 7. In addition, a column 21 extending in a direction orthogonal to the horizontal direction is connected to one end of the upper surface of the main body carriage 3 (outside the region sandwiched between the two rails 11). A pipe-shaped auxiliary member 23 extending upward from the surrounding cover plate 19 is connected to two places in the height direction of the column 21 in a bent state. The auxiliary member 23 reinforces the column and is a handrail. A hoisting machine 25 around which a wire is wound is attached to the support column 21. The hoisting machine 25 may be either an electric type or a manual type as long as the wire can be wound and unwound.

  The rail 11 fixed to the upper surface of the frame 9 is formed by bending both sides of a rectangular plate material in the same direction, and a groove 27 is formed along the longitudinal direction of the rail 11 inside the bent portion. The two rails 11 are horizontally arranged with the grooves 27 facing each other in parallel.

  The support 5 includes a traveling carriage 29 that travels along the rail 11 and a rotating body 31 that is rotatably supported on the traveling carriage 29. The traveling carriage 29 includes a support frame 33 and two axles 35 that are pivotally supported by the support frame 33. The support frame 33 is formed by bending both sides of a rectangular plate material in the same direction. The two axles 35 are inserted through through-holes 37 formed on both sides of the support frame 33 that are bent, and are arranged parallel to each other (FIG. 5). A flanged wheel 39 having an outer diameter larger than the diameter of the through hole 37 is attached to both end sides of the axle 35 protruding from the through hole 37. As for the wheel 39 with a flange, the part used as a flange and the part used as a wheel are integrally formed with resin etc., and the cross section of the axial direction has comprised trapezoid shape.

  The support frame 33 is provided with a flat support surface 41 on the inner side of two opposing surfaces in which the through holes 37 are formed, and the support surface 41 is provided with a columnar shaft 43 that protrudes perpendicularly from the surface. It has been. The shaft 43 is fixed to the support surface 41 with a known configuration, but may be formed integrally with the support surface 41.

  The rotating body 31 is formed in a substantially rectangular parallelepiped box shape. A shaft hole 47 into which a shaft 43 protruding from the traveling carriage 29 is inserted is provided on the bottom surface 45 of the rotating body 31 facing the traveling carriage 29. In FIG. 4, the internal structure of the rotating body 31 is omitted, but the shaft hole 47 is based on the insertion depth when the shaft 43 is inserted into the shaft hole 47, the outer diameter of the shaft 43, and the like. A cylindrical space to be set is formed.

  The rotating body 31 has two plate-like protrusions along two opposing side surfaces (the front and back surfaces in FIG. 4) and the front side surface (the right side surface in FIG. 4) connected to these side surfaces. A portion 49 is provided so as to protrude from the upper surface 51 facing the bottom surface 45. The two protrusions 49 extend in parallel to each other, and are provided with upper shaft holes 53 at coaxial positions. In addition, lower shaft holes 55 are respectively provided at two coaxial side surfaces on the two opposing side surfaces (the front and rear surfaces in FIG. 4) of the rotating body 31.

  On the other hand, a ring-shaped lubricating member 57 having a predetermined thickness is provided on the support surface 41 of the traveling carriage 29 so as to surround the shaft 43. The lubrication member 57 is formed of a synthetic resin (for example, polyacetal resin) having a small frictional resistance and has an outer shape that is circular or rectangular, and the upper surface thereof has a stepped structure positioned above the support surface 41. ing. The lubricating member 57 may be disposed on the support surface 41 or may be embedded in a part of the support surface 41. Further, the lubricating member 57 does not need to be ring-shaped, and may be a rectangle provided on the entire upper surface of the support surface 41, for example.

  Next, a procedure for assembling the main body carriage 3, the traveling carriage 29, and the rotating body 31 will be described.

  First, in the traveling carriage 29, the axle 35 is passed through the through hole 37 of the support frame 33. A flanged wheel 39 is attached to each side of the axle 35 coming out of the through hole 37 with the flange side inside.

  In the traveling carriage 29 assembled in this manner, flanged wheels 39 on both sides of one axle 35 are respectively inserted into the grooves 27 of the rail 11 (FIG. 5), and subsequently, flanges on both sides of the other axle 35 are attached. When the wheel 39 is inserted into the groove 27 of the rail 11, the vehicle can travel along the rail 11. In addition, the both ends of the rail 11 can prevent the traveling carriage 29 from coming off the groove 27 of the rail 11 by sealing the groove 27 portion by a known method.

  Next, the rotating body 31 is attached on the traveling carriage 29 attached to the rail 11. Specifically, while holding the rotating body 31, the rotating body 31 is moved downward in a state where the shaft hole 47 of the rotating body 31 and the shaft 43 of the traveling carriage 29 are aligned. By doing so, the rotating body 31 has the bottom surface 45 in contact with the lubricating member 57 and the shaft 43 is inserted deeply into the shaft hole 47. As a result, on the lubricating member 57, around the shaft 43. It will be in the state supported so that rotation was possible.

  Thus, the connecting bridge 7 is supported on the rotating body 31 supported by the traveling carriage 29. About the structure of the connecting bridge 7, since a well-known structure (for example, patent document 1) is employ | adopted, it demonstrates easily and demonstrates focusing on a characteristic part.

  As shown in FIG. 1, the connecting bridge 7 of this embodiment includes a main frame 61, a subframe 63, and a plurality of steps 65. The main frame 61 is provided in a pair of left and right, and its base end portion is inserted around the upper shaft hole 53 of the protrusion 49 of the rotating body 31 and can rotate around the axis of the upper support shaft 67 extending in the horizontal direction. Is attached. The main frame 61 is formed by bending a part of its longitudinal direction downward at a predetermined angle. Between the pair of main frames 61, a step-like communication passage composed of a plurality of steps 65 is formed.

  The step 65 is formed of a planar step body 69 serving as a scaffold and support legs 71 depending from the left and right lower surfaces of the step body 69. The step body 69 enters between the pair of main frames 61, and both support legs The upper portion of 71 is pivotally supported on the main frame 61 by a main support shaft 73.

  On the other hand, on the inner side of the main frame 61 and on the outer side of the support legs 71, a pair of left and right subframes 63 are provided extending in parallel with the main frame 61. The sub-frame 63 is provided to always keep the step 65 in a horizontal state, and a base end portion of the sub-frame 63 is inserted into the lower shaft hole 55 of the rotating body 31 and extends in the horizontal direction. It is attached so as to be rotatable around 75 axes. Similarly to the main frame 61, the subframe 63 is formed by bending a part in the longitudinal direction downward at a predetermined angle.

  The lower ends of the support legs 71 of the step 65 are pivotally supported on the subframe 63 by the subsupport shaft 77 so as to be rotatable. As a result, a parallelogram is formed between the upper support shaft 67 and the lower support shaft 75 which are the rotation centers of the frames 61 and 63, and the main support shaft 73 and the sub support shaft 77 on which the step 65 side is supported. Even when the frames 61 and 63 rotate up and down, the horizontal state of the step body 69 is maintained.

  As shown in FIG. 1, a plurality of poles 79 are erected on the subframe 63 at intervals in the longitudinal direction. Relay portions 83a and 83b through which wires 81 are inserted are respectively provided at the top and intermediate portions of each pole 79. The wires 81 inserted through the relay portions 83a and 83b are connected to the distal end portion and the proximal end of the subframe 63, respectively. It is stretched through the relay parts 85a and 85b provided in each part. On the other hand, the wire 82 unwound from the hoisting machine 25 is wound around the subframe 63 and the like of the connecting bridge 7 via a relay portion 87 (for example, a pulley) provided at the top of the support column 21. For this reason, the connecting bridge 7 can be raised and lowered by winding and unwinding the hoisting machine 25.

  The connecting bridge 7 configured in this manner is supported at the base end portion by the rotating body 31, while the tip end portion is hooked on a frame member or the like installed on the deck of the ship. Here, on the bottom surface of the front end portion of the connecting bridge 7, a latching member 89 that is latched by a frame member or the like is provided. The latching member 89 is composed of two flat projections 89a and 89b, which are arranged to face each other with an interval in a direction orthogonal to the longitudinal direction of the connecting bridge 7.

  In the present embodiment, the projecting portion 89a on the proximal end side of the connecting bridge 7 projects substantially perpendicularly from the bottom surface of the subframe 63, but the projecting portion 89b on the distal end side is slightly inward toward the projecting portion 89a. That is, the opposing surfaces of the two projecting portions 89a and 89b and the bottom surface inside the opposing surfaces protrude so as to have an acute angle. In addition, a plate-like member made of resin, elastic material, or the like is affixed to the surface where the projecting portion 89a and the projecting portion 89b face each other in order to prevent damage to the ship's fixing base. .

  The ship boarding / exiting device 1 configured as described above is required to move on the land such as a quay or a jetty without falling down while supporting the connecting bridge 7. For this reason, the ship boarding / exiting device 1 according to the present embodiment has a structure in which the support body 5 is supported on the main body carriage 3, that is, the traveling carriage 29 and the rotating body 31 are sequentially stacked on the main body carriage 3. The center of gravity is stabilized by collecting the center of gravity. Further, the main body carriage 3, the traveling carriage 29, the rotating body 31 and the like are formed of a material having a relatively large specific gravity such as an SS material, while the connecting bridge 7 is formed of a material having a relatively low specific gravity such as an aluminum material, By attaching a counterweight made of a flat bar or the like between two fork pockets 15 on the lower surface of the two frames 9, the center of gravity is further stabilized. Therefore, even when the connecting bridge 7 which is the most unstable state is tilted horizontally, it is possible to prevent the fall.

  Further, when the ship getting on / off apparatus 1 is moved on land, the wire 82 is wound up by the hoisting machine 25 and the connecting bridge 7 is lifted to a predetermined angle (for example, lifted so as to extend right above). Even in the area, the land can be moved efficiently and the stability during movement can be improved. Thus, according to this embodiment, since the installation position of the connecting bridge 7 can be freely moved according to the mooring position of the ship, etc., it is possible to provide a highly versatile connecting passage with excellent handling properties. it can. Further, since the fork pockets 15 are provided under the two frames 9, the ship getting on / off device 1 can be transported to a desired position with the forks of the forklifts being inserted into the respective fork pockets 15. .

  On the other hand, when the connecting bridge 7 is bridged between the land and the ship, for example, the main body cart 3 is arranged so that the direction in which the ship advances and retreats and the direction in which the rail 11 extends are orthogonal to each other. Here, as shown in FIG. 1, one end of an L-shaped metal fitting 91 is supported on the main body cart 3 so as to be rotatable around a horizontal axis. Therefore, as shown in FIG. 6, the main body cart 3 is curbed by hooking the metal fitting 91 on the curb 93 or the like standing up along the quay and interposing the curb between the main body cart 3 and the metal fitting 91. It can be securely fixed to the same.

  The ship getting on / off device 1 thus fixed to the curb 93 or the like suspends the connecting bridge 7 by rewinding the wire 82 by the hoisting machine 25, and is hooked on the tip side of the connecting bridge 7. The member 89 is hooked at a predetermined position of the ship.

  Here, the operation of the connecting bridge 7 accompanying the movement of the ship will be described. First, when the ship moves in a forward and backward direction with the connecting bridge 7 being bridged, the rotating body 31 rotates around the shaft 43 provided on the traveling carriage 29 following the movement of the ship. Move. When the ship moves in a direction orthogonal to the forward and backward movement direction, the traveling carriage 29 that supports the rotating body 31 moves along the groove 27 of the rail 11 following the movement of the ship. Since the rotation of the rotating body 31 and the movement of the traveling carriage 29 along the rail 11 are independent of each other, for example, when the ship moves obliquely with respect to the traveling direction, the traveling carriage that travels Rotating body 31 rotates on 29.

  On the other hand, when the ship swings in the vertical direction, the base end portion of the connecting bridge 7 follows the movement of the ship and moves in the vertical direction around the upper support shaft 67 and the lower support shaft 75 of the rotating body 31. To turn. Since the rotation of the base end portion of the connecting bridge 7 is independent of the movement of the traveling carriage 29 and the rotating body 31, the connecting bridge 7 rotates regardless of the operation of the traveling carriage 29 and the rotating body 31. .

  Thus, since the ship getting-on / off device 1 of this embodiment can move the connecting bridge 7 following the movement of the ship regardless of the horizontal direction or the vertical direction, the passerby can move. High safety can be maintained.

  Next, the operation of the latching member 89 provided at the distal end portion of the connecting bridge 7 will be described in association with the vertical movement of the ship. 6 and 7 show a state in which the hooking member 89 of the connecting bridge 7 is hooked to the frame member 95 provided on the deck of the ship. In the figure, the ship is omitted.

  As shown in FIG. 6, when the frame member 95 of the ship is at a position lower than the quay due to low tide or the like, the connecting passage of the connecting bridge 7 extends substantially horizontally from the base end portion to the bent portion, and beyond that Is inclined toward the sea surface. The frame member 95 is in contact with the inner surface of the protrusion 89a at the tip of the connecting bridge 7.

  On the other hand, as shown in FIG. 7, when the frame member 95 of the ship is at a position higher than the quay due to high tide or the like, the connecting bridge 7 is lifted by the ship from the state of FIG. It is inclined toward. The frame member 95 is in contact with the inner surface of the projection 89b at the tip of the connecting bridge 7.

  Thus, in this embodiment, since the two projection parts 89a and 89b are provided in the front-end | tip part of the connection bridge 7, only the front end side of the connection bridge 7 is covered with the frame material 95 of a ship from the top. It can be easily hooked up. 6 and 7, when the connecting bridge 7 is passed obliquely from above or below to the frame member 95, one of the two protrusions 89a and 89b is selected depending on the height of the frame member 95. One of them is brought into contact with the frame member 95 and hooked. In particular, in this embodiment, since the angle between the inwardly extending projection 89b and the bottom surface is narrow, the connecting bridge 7 is passed from the diagonally lower side to the frame member 95 as shown in FIG. The frame material 95 is latched in the narrow area | region, and it can suppress that the frame material 95 falls from the latching member 89. FIG. For this reason, in order to enhance the latching effect of the frame member 95 by the latching member 89, it is preferable that both the projecting portions 89a and 89b extend inward.

  According to the marine boarding / alighting device 1 of the present embodiment, the connecting bridge 7 can be moved following the movement of the marine vessel in the vertical direction or the horizontal direction, so that the safety of passers-by can be improved. Further, since the traveling carriage 29 and the rotating body 31 both move in a predetermined manner while being supported on the main body carriage 3, the center of gravity can be stabilized, and as a result, while supporting the connecting bridge 7, Can be moved. Therefore, according to this embodiment, for example, the mooring position is likely to fluctuate, and in a relatively small ship or the like, the installation position of the connecting bridge 7 can be freely adjusted according to the mooring position or the like of the ship. It is excellent in handleability and can be suitably used.

  Further, in the present embodiment, as shown in FIG. 2, the first scaffold for the passerby is formed by passing the cover plate 19 between the receiving members 17 provided on the two frames 9. By enclosing the upper surface portion of the rail 11 (excluding the portion through which the support frame 33 passes) with the cover plate 97, a second scaffold at a higher position is formed. Furthermore, by using the upper surface 51 of the rotating body 31 as a third scaffold, the first to third scaffolds are formed in a stepped shape. For this reason, the user who crosses a ship from a quay can go smoothly to the connecting passage of the connecting bridge 7 by going up this stairs.

  As mentioned above, although embodiment of this invention has been explained in full detail with drawing, the said embodiment is only an illustration of this invention and this invention is not limited only to the structure of the said embodiment. Needless to say, changes in design and the like within the scope of the present invention are included in the present invention.

  For example, the connection bridge 7 has been described as an example in which a plurality of steps 65 in which the horizontal state is maintained are arranged in a staircase shape. However, for example, if the connection passage has a relatively short overall length, the connection bridge 7 is connected on a flat surface. You may make it form a channel | path.

1 Ship getting on and off device 1
DESCRIPTION OF SYMBOLS 3 Main body trolley 5 Support body 7 Connecting bridge 9 Frame 11 Rail 13 Caster 25 Hoisting machine 27 Groove 29 Traveling trolley 31 Rotating body 35 Axle 39 Wheel with flange 43 Shaft 89 Latching member 89a, 89b Protrusion 91 Metal fittings

Claims (5)

A ship getting on and off device that bridges between a ship and land,
A main body carriage, a support supported on the main body carriage, and a connecting bridge supported at one end by the support;
The main body carriage has a frame with a wheel attached to the bottom and two rails attached to the top of the frame, and the two rails are formed by bending both ends of a plate material in the same direction. Are installed in parallel and horizontally so that the grooves are facing each other,
The support includes a traveling carriage that moves along the two rails, and a rotating body that is supported by the traveling carriage. The traveling carriage includes a plurality of parallel axles that the traveling carriage includes. Wheels provided at both ends or both ends of the axle are respectively accommodated in the grooves of the rail, and the rotating body is rotatably supported around an axis perpendicular to the horizontal direction provided at the upper portion of the traveling carriage. Being
The connecting bridge is a marine boarding / alighting device in which a base end side is rotatably supported around a horizontal axis provided in the rotating body and a distal end side is formed to be hookable on the marine vessel.   The connecting bridge includes a pair of frames extending in parallel in a longitudinal direction, and a plurality of steps supported between the frames and maintained in a horizontal state regardless of the rotation of the connecting bridge. The ship boarding / alighting device according to claim 1, wherein the step is provided in a stepped manner in the longitudinal direction.   The connecting bridge is provided with a hooking member that is hooked to the ship on the bottom surface on the tip side thereof, and the hooking member has two flat projections in a direction perpendicular to the longitudinal direction of the connecting bridge. The two protrusions are formed so as to be opposed to each other at an interval, and the opposing surfaces facing each other and the bottom surface inside the opposing surfaces are formed at an angle of less than a right angle. The ship getting-on / off device as described.   The connecting bridge is supported by being suspended by a wire hung through an upper portion of a support column installed on the main body carriage, and the main body carriage is provided with a hoisting machine for winding and lowering the wire. The ship boarding / alighting device according to any one of claims 1 to 3.   The main body carriage is provided with an L-shaped metal fitting that is hooked on a convex edge provided on the land, and the base end side of the metal carriage is supported rotatably around the horizontal axis of the main body carriage. The ship boarding / alighting device according to any one of claims 1 to 4.

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