JP3715974B2 - Bandai device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ladder apparatus, and more particularly, to a ladder apparatus that is installed in a ship and used for raising and lowering personnel and carrying in / out articles.
[0002]
[Prior art]
In cargo ships and other various ships, a ladder device (also called a ladder or a lap) is used that is lowered and lowered obliquely downward along the side of the ship from the deck of the ship when a person gets on and off the ship.
Even if the height difference from the deck of the ship to the quay changes, the ladder device can be easily handled by changing the inclination angle of the ladder device and adjusting the height position on the lower end side. It is also useful when transferring from a ship's deck to another boat. The ladder device is accommodated and installed on the deck of the ship when not in use, and is moved outward from the side of the ship only during use.
[0003]
Passenger boarding passenger entrances and ferry car entrances may have special boarding facilities on both the ship side and the dedicated quay side, which are usually at the same height as the quay side. It is difficult to provide such a large-scale dedicated facility for the ship. For non-regular ships and cargo ships, special quay facilities cannot be used. When it is necessary to cope with the difference in the usage environment such as the positional relationship with the quay, the ladder device as described above is required.
Various ladder devices having a structure suitable for such usage and required functions have been developed.
[0004]
In Patent Document 1 relating to the application of the present patent applicant, after the ladder mounted on the ship is moved in parallel to the outside of the saddle side, the crane-like swivel arm with the tip of the ladder suspended is horizontally swiveled. At the same time, a ladder device has been proposed in which a suspension wire is drawn out so that the tip of the ladder reaches the quay far from the shore side. In this prior art, a mechanism that interlocks the complex operations of Bandai described above can be combined to achieve the target operation relatively easily and reliably.
[0005]
[Patent Document 1]
Japanese Patent No. 2698736
[0006]
[Problems to be solved by the invention]
Although the technique of the said patent document 1 can respond to the fluctuation | variation of the distance between the shore of a ship and a quay, compared with a normal ladder apparatus, an apparatus structure becomes complicated and the occupation space required for installation also becomes large.
Specifically, as the operation of the Bandai, it is necessary to make a large turn in both the vertical direction and the horizontal direction on the other end side arranged on the quay side with one end arranged on the ship side as a base point. A large swivel arm device that can hang the entire Bandai and swivel horizontally must be installed on the ship. In particular, in the technique of Patent Document 1, since the entire ladder is translated from the deck to the outside of the saddle side, a complicated operation of turning the ladder horizontally and downward is performed, so that the operation mechanism becomes complicated. ing.
[0007]
In addition, when ascending and descending the ladder spanned to the quay far from the quayside, it is necessary to ascend and descend the ladder stairs on the seaside with no structures on the left and right sides and below the quayside between the quayside and the quayside. It gives a strong sense of anxiety if not used.
An object of the present invention is to provide a ladder apparatus that can easily cope with changes in usage conditions such as a positional relationship with a quay and is structurally simple and easy to manufacture and use.
[0008]
[Means for Solving the Problems]
The ladder apparatus according to the present invention is a ladder apparatus installed on a ship, and is a state in which the whole is housed in a ship, and a state in which the upper end side is connected to the ship and the lower end side extends obliquely downward along the ship's saddle side. A ladder main body having a ladder stage that can move up and down in a state of extending obliquely downward, and swings horizontally with one end side pivotally supported on the lower end side of the ladder main body as a base point , Bandai body Parallel to the top surface And a state that overlaps , For Bandai body The tip side is in the crossing direction To the side Overhang An auxiliary ladder that is movable between an extended state and the auxiliary ladder, Along the length direction Between the ladder stage that can be moved up and down following the ladder stage of the ladder main body in an overlapped state, the state that forms a flat walking surface covering the ladder stage, and the state that stands along the side of the auxiliary ladder and exposes the ladder stage With a movable walking board
.
[0009]
[Ship and Bandai Equipment]
The present invention can be applied to various ordinary ships used for various purposes. For example, a cargo ship, a passenger ship, various work ships, etc. are mentioned.
The basic arrangement structure of the ladder device may be the same as that of a ladder device installed in a normal ship. The Bandai device is installed along the left and right sides of the ship or along the stern side of the stern. In some cases, a ladder device is provided at a plurality of locations on the ship.
The Bandai device functions to allow people to walk up and down on foot between the ship and the quay. Here, the quay is a narrow quay constructed with concrete as a port facility, a pier structure made of wooden or steel frames, a floating pier, and a small boat deck attached to a ship. It is included in the concept of the quay in the sense of a structure that does.
[0010]
The ladder device needs to have a length corresponding to the expected height difference between the deck of the ship on which the ladder device is installed and the quay where the ship is in contact. For example, it can set to the dimension which can respond to the height from the installation place of a ladder apparatus to a water line.
[Bandai body]
Basically, a structure that is common to the ladder in a normal ladder apparatus is adopted.
The entire Bandai body is housed in the ship when not in use. It can be stored on the deck of the ship or in the middle of the ship. When the Bandai main body is used, the upper end side is connected to the ship, and the lower end side is arranged in a state extending obliquely downward along the ship's side.
[0011]
The ladder main body has a ladder stage that allows personnel to move up and down while the tip side is lowered obliquely downward along the heel side. The ladder step may be a flat step plate shape or a curved plate shape curved in the depth direction. The curved plate-like ladder stage is easy to move up and down by stepping on the ladder stage even if the inclination angle of the ladder main body changes. The ladder stage can be provided with a non-slip sheet or a non-slip treatment. A handrail pillar can be installed on the side of the Bandai body. A handrail cable can be stretched over the handrail pillar. A lighting device can also be installed. In addition, facilities and structures for assisting the raising and lowering of the Bandai body can be provided.
[0012]
The Bandai body is configured to be able to transition between the state of being accommodated in the ship and the state of being lowered obliquely along the outside of the shore side.
The same technique as that of a normal ladder apparatus can be applied to the arrangement structure of the banded body in the accommodation state, the transition operation, and the use state. For example, it is possible to adopt a structure in which a ladder main body accommodated along the saddle side in a horizontal state is translated to shift to the outside of the saddle side, and then one end of the ladder main body is lowered to shift to a use state. The main body of the Bandai is stood and accommodated while extending along the side of the ship inside the ship, and by tilting the main body of the ship, the main body of the band extends in parallel along the outer side of the side of the ship. It is also possible to adopt a structure in which it is lowered and shifted to a use state. The shifting operation of the Bandai body is performed using a winch device, a David device, a crane device, a slide rail, a turntable, a link mechanism and the like installed on the ship.
[0013]
[Auxiliary Bandai]
Located at the end of the Bandai body. Connect between Bandai body and quay.
The auxiliary ladder is pivotable in a horizontal direction with the one end side pivotally supported on the lower end side of the main body of the main band as a base, and is capable of transition between a state of being overlapped with the main body of the main ladder and a state of extending sideways with respect to the main body of the main ladder. is there.
As the basic structure of the auxiliary ladder, the same technology as that of the main body of the ladder or a normal ladder can be applied. The auxiliary ladder can be attached to the main body by using a rotating bearing structure or a turntable structure so that it can be turned horizontally. Further, by providing a hinge mechanism that can pivot in the vertical direction at the end of the auxiliary ladder, it is possible to change the vertical inclination angle of the auxiliary ladder with respect to the end of the ladder main body. The auxiliary ladder can maintain a horizontal state with respect to the inclined ladder body.
[0014]
The auxiliary ladder includes a ladder stage that can be moved up and down following the ladder stage of the ladder main body in a state of overlapping with the main body of the ladder. The basic structure of the ladder stage of the auxiliary ladder is also the same as that of the ladder main body.
<Moveable walking board>
It is possible to shift between a state in which the ladder step is covered and a flat walking surface is formed and a state in which the ladder step is exposed along the side of the auxiliary ladder.
The movable walking board is composed of a plate material having mechanical strength such as a steel plate that can withstand the treading pressure. It is also possible to use a punching metal, a mesh plate, a lattice frame plate or the like having a space penetrating the front and back, a surface having a non-slip irregularity, a surface having a non-slip layer such as rubber.
[0015]
The movable walking board is attached to the side of the auxiliary ladder via a hinge mechanism, a slewing bearing mechanism, or the like, and can move between a state where the ladder step is covered and a state where the ladder step is exposed. The movable walking board is divided into two in the width direction, and the divided half parts can be respectively attached to the sides on both sides of the auxiliary ladder. The entire movable walking board may be attached to one side of the auxiliary ladder. In the length direction of the auxiliary ladder, the movable walking board may be continuous or divided into a plurality of pieces. The movable walking board divided in the length direction is lightweight and easy to lift during the above-described transition operation.
[0016]
Handrail pillars and handrails can also be provided on the auxiliary Bandai. A grounding roller can be provided on the bottom surface of the auxiliary ladder to slide on the quay.
[Zhangde Bandai]
It has a function of connecting the Bandai body and the ship in a state where the Bandai body is arranged outside the shore side. Facilitates the passage between the Bandai body and the ship.
The upper end side of the Bandai main body is connected and supported on one end side, and the other end side is connected to the ship. Basically, it has the same structure as a normal Bandai. Usually, it extends in a direction orthogonal to the Bandai body.
[0017]
The overhanging ladder can be moved between a state in which one end connected to the main body of the ladder is accommodated in the ship and a state in which the protruding part protrudes to the side of the ship. The end on the ship side of the stretched ladder is always arranged on the ship side inside the anchor side. As a structure that enables such a transition, the end of the overhanging ladder on the ship side can be attached to the ship side via a hinge mechanism that can pivot in the vertical direction. The transition is made possible by the fact that the Bandai main body side of the overhang Bandai turns up and down. The transition operation described above is also possible when the overhanging ladder is provided with a sliding structure that advances and retreats from the inside of the ship to the outside of the shore. The overhanging ladder may turn horizontally with the bearing structure in the ship as a base point, and the turning tip side may shift from the inside of the ship to the outside of the dredging side.
[0018]
The Bandai main body can be connected to the overhang Bandai so as to be horizontally rotatable. In this case, a part of the main body of the ladder that is connected to the overhanging ladder includes a turntable structure that can be turned horizontally, and a hinge that allows downward turning before the connecting part of the overhanging ladder. A mechanism or the like may be provided. If such a horizontal turning structure is provided, it is easy to horizontally place the ladder main body and arrange it so as to follow the inclination or curved shape of the side with respect to the ship axis direction. It is also possible to arrange the lower end side of the Bandai main body at a position far away from the saddle side to some extent.
(Horizontal plane)
A horizontal plane can be formed at the lower end side of the main body of the ladder so that the horizontal plane can be configured even when the entire main body of the ladder extends obliquely downward along the side of the ship, and a horizontal plane portion is provided that supports one end side of the auxiliary ladder so as to be pivotable in the horizontal direction. it can.
[0019]
By having the horizontal plane part, the horizontal turning operation of the auxiliary ladder becomes easy. Since the auxiliary ladder can always be used in a horizontal state, it becomes easy to pass.
If a hinge mechanism that can be swung up and down is provided between the horizontal surface and the upper part of the main body, the horizontal surface can always be kept horizontal regardless of the inclination angle of the main body. Become.
A turntable structure can be provided as a structure for supporting the auxiliary ladder so as to be horizontally rotatable.
If the horizontal plane can be directly grounded to the quay, personnel articles can be raised and lowered without using an auxiliary ladder. If the distance between the ship's quayside and the quay is small, the horizontal plane can reach the quay by simply lowering the main body of the ladder diagonally downward.
[0020]
When the horizontal surface portion is directly grounded to the quay, if the ground roller is provided on the lower surface side of the horizontal surface, the sliding with the quay can be performed smoothly.
[Auxiliary Bandai Davit Device]
A davit device can be provided as a mechanism for performing the operation of the auxiliary ladder.
Basically, a davit device having the same structure as that of a davit device installed in a normal ship can be used.
The davit device has a function of winding and unwinding a hanging rope made of a wire rope or the like. The davit device can be provided with a boom that can pivot in the horizontal direction. The tip of the suspension rope suspended from the tip of the boom is attached to the auxiliary ladder via the pulley and sheave mechanism. By the horizontal turning of the boom, the auxiliary ladder can be turned in the horizontal direction with respect to the main body of the ladder. The length of the suspension rope from the tip of the boom to the auxiliary ladder can be adjusted as the tip of the main body is moved up and down.
[0021]
[Handrail device]
The auxiliary ladder can be further provided with handrail pillars that are arranged along the both sides of the handrail so as to stand up and down and handrails that are stretched over the handrail pillars.
As a handrail column that can stand up and down, one having a structure similar to that used in a normal ladder apparatus can be adopted. Usually, the base part of the handrail pillar made of steel or wood is connected to the auxiliary ladder by a hinge mechanism. The hinge mechanism can be provided with a stopper that can position the handrail column in the standing state and the lying state.
If the handrail pillar can stand up and down freely, the handrail pillar is erected to perform a traffic assist function when used in a state where the auxiliary ladder is swung horizontally with respect to the main body of the ladder. When the auxiliary ladder is overlapped with the main body of the ladder, the handrail pillar of the auxiliary ladder may be brought down. Even when the main body and the auxiliary ladder are stored on the ship, if the handrail pillar of the auxiliary ladder is placed in a tilted state, the thickness of the entire ladder device can be reduced and stored in a compact manner. .
[0022]
The handrail column can be provided with a metal fitting or an engaging portion through which the handrail cable can be inserted or fixed.
[Containment structure for Bandai device]
When the ladder device is not used, as an accommodation structure when the ladder device is accommodated in the ship, one end of the overhanging ladder can be attached to the ship with a hinge mechanism that can pivot in the vertical direction.
When the Bandai body is arranged on the same plane as the overhanging Bandai and the auxiliary Bandai is placed on the Bandai body, the whole becomes an L-shaped board. When the overhanging ladder is swung upward to be in an upright state, the surface of the L-shaped disk-like body becomes vertical and is arranged on the inner side of the ship's side. If the Bandai main body is fixed to the support pillar installed in the ship, the L-shaped board is fixed in the standing state.
[0023]
With such an accommodation structure, the accommodation space on the ship occupies only a width that is the sum of the thicknesses of the ladder main body and the auxiliary ladder, and can be accommodated extremely compactly. The transition from the housed state to the used state can be performed easily and quickly because basically only the swiveling operation of the overhanging ladder is required.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment shown in FIGS. 1 to 11 schematically shows the structure of the ladder apparatus in a state in which the structure is simplified in order to make the basic functions easy to understand. There are places where the details of the mechanism structure are simplified or omitted, or the dimensional ratio is changed.
[Overall structure]
As shown in FIGS. 1 to 3, the ladder device provided on the deck 12 of the ship 10 includes an overhanging ladder 20, a ladder main body 30, and an auxiliary ladder 40. The overhanging bridge 20 protruding from the deck 12, the bridge main body 30 extending from the front end of the overhanging ladder 20 along the side 14, and the state where the front end reaches the quay Q by turning from the state of being stacked on the main body 30. The auxiliary ladder 40 that can be transferred to the berth enables the ship 10 and the quay Q to pass.
[0025]
As shown in FIG. 1, on the deck 12, a winch device 50 that winds and unwinds a suspension wire 52 that moves up and down the ladder main body 30, and a davit that winds and unwinds a suspension wire 62 that rotates the auxiliary ladder 40. Equipment attached to the ladder device, such as the device 60 and the support column 70 for fixing and supporting the ladder device, is installed.
[Zhangdee Bandai and Bandai body]
The overhanging ladder 20 and the ladder main body 30 basically have the same structure as a normal ladder device.
[0026]
As shown in FIG. 6B, the overhanging ladder 20 is attached so that one end side thereof is turnable in the vertical direction with respect to the deck 12. When the Bandai device is not in use, it is housed vertically. When using the ladder device, the overhanging ladder 20 is brought down to a horizontal state. In this state, the tip of the overhanging ladder 20 projects outward from the heel side 14.
The upper surface of the overhanging ladder 20 has a flat passage shape, and handrail pillars and handrails are attached to necessary portions such as both sides.
As shown in FIG. 1, a ladder main body 30 is supported on the distal end side of the overhanging ladder 20. An attachment surface 31 provided at an end of the ladder main body 30 is attached to the overhanging ladder 20 so as to be horizontally turnable within a certain angle range. Thereby, it becomes easy to arrange the ladder main body 30 along the curved shape of the heel side 14.
[0027]
As shown in FIG. 2, with respect to the mounting surface 31 supported by the overhanging ladder 20, the central portion of the ladder main body 30 can be bent downward via a hinge structure.
As shown in FIG. 10, the ladder main body 30 is provided with ladder steps 38 that allow a person to move up and down while the ladder main body 30 is inclined with a predetermined pitch interval. The ladder stage 38 has a rectangular plate shape extending in the width direction of the ladder main body 30 with a slightly curved cross-sectional shape. Since the ladder step 38 is curved, even if the inclination angle of the ladder main body 30 changes within a certain range, the ladder step 38 can be easily moved up and down by stepping on the ladder step 38.
At the lower end of the ladder main body 30, similarly to the mounting surface 31, there is a horizontal plane portion 32 that is flexibly attached to the central portion of the ladder main body 30 via a hinge structure. An auxiliary ladder 40 is attached to the horizontal plane portion 32. Moreover, when the ship's 10 side 14 is close to the quay Q, the horizontal surface part 32 can be directly grounded to the quay Q and used for traffic.
[0028]
In the main body 30, handrail pillars 37 are arranged at regular intervals along both sides, and a handrail cable 39 is stretched over each handrail pillar 37.
As shown in FIGS. 1 and 2, suspension wires 52 are attached to both the left and right sides on the side of the main body 30 in the length direction and slightly closer to the tip than the center, and the suspension wires 52 are the winch device 50 of the deck 12. Driven. The arrangement path of the suspension wire 52 from the winch device 50 to the ladder main body 30 is not shown, but the ladder main body 30 is suspended along the saddle side 14 via a normal pulley mechanism, a sheave device, etc. The tip end side of 30 can be inclined downward at an arbitrary angle.
[0029]
[Auxiliary Bandai]
The auxiliary ladder 40 is in a state of being overlapped along the upper surface of the ladder main body 30 (FIG. 1 and the like), and a state in which the tip side is turned horizontally from the lower end of the ladder main body 30 to reach the quay Q (such as FIG. 3) Can be transitioned between.
As shown in FIG. 10, the horizontal surface portion 32 provided on the front end side of the ladder main body 30 is provided with a turntable-like turning plate 33 that can turn horizontally, and the hinge structure that can turn the turning plate 33 in the vertical direction. Auxiliary ladder 40 is attached via 34. As a result, the auxiliary ladder 40 can be swung horizontally with respect to the horizontal surface portion 32 at the tip of the ladder main body 30 and can be stacked on the inclined ladder main body 30.
[0030]
The auxiliary ladder 40 is also provided with a ladder step 46 as in the case of the ladder main body 30. Therefore, the ladder main body 30 in a state where the auxiliary ladder 40 overlaps can be stepped up and down by stepping on the ladder stage 46 of the auxiliary ladder 40 and the ladder stage 38 of the ladder main body 30.
As shown in FIG. 4, the auxiliary ladder 40 has a movable walking board 42 on the upper surface side of the ladder stage 46. The movable walking board 42 is made of a steel plate or the like, and is arranged in a belt shape along both sides of the auxiliary ladder 40. The lower sides of the left and right movable walking plates 42 can be opened and closed by turning in the vertical direction on the side sides of the auxiliary ladder 40 via a hinge mechanism. In a state where the movable walking plate 42 is tilted and leveled, a flat walking surface is formed on the upper surface of the auxiliary ladder 40. In a state where the movable walking plate 42 is set to the left and right, the ladder step 46 is exposed, and the raising / lowering operation using the ladder step 46 becomes possible.
[0031]
On both sides of the auxiliary ladder 40, handrail pillars 44 and handrail ropes 45 similar to the ladder main body 20 are provided.
As shown in detail in FIG. 5, the handrail column 44 includes a hinge portion 44 a on the base side, and can shift between a state in which the handrail column 44 lies horizontally on the upper surface of the auxiliary ladder 40 and a state in which the handrail column 44 stands up vertically. Only when the auxiliary ladder 40 is used, the handrail pillars 44 are erected, and are stretched over the whole through the handrail ropes 45 to the rope loops 44b provided in each handrail pillar 44. The structure of the handrail pillar 44 described here is common to the handrail pillar 37 of the ladder main body 30 and the handrail pillar of the overhanging ladder.
[0032]
As shown in FIG. 3, the tip of the auxiliary ladder 40 has a ground roller 41, and the ground roller 41 is in sliding contact with the quay Q. Even if the ship 10 sways due to waves or the like, the auxiliary ladder 40 moves smoothly by the ground roller 41 and the ground contact state to the quay Q can be maintained.
[Containment state of Bandai device]
When the boarding device is not used, such as when the ship 10 is sailing, it is accommodated in the form shown in FIGS.
In each Bandai 20, 30, 40, the handrail pillars 37, 44 are left in a tilted state. The auxiliary ladder 40 is placed on the ladder main body 30 by defeating the movable walking plate 42. The Bandai main body 30 is linearly extended from the mounting surface 31 through the central portion to the horizontal surface portion 32 at the tip. As shown in FIG. 6A, the entire overhanging ladder 20, the ladder main body 30, and the auxiliary ladder 40 are formed as a single board. As shown in FIG. 1, the whole comprises a substantially L-shaped board. The suspension wire 62 is removed from the auxiliary ladder 40 or rewound onto the davit device 60.
[0033]
As shown in FIG. 6B, the overhanging ladder 20 is raised from the horizontal state to the vertical state. The Bandai main body 30 is pressed against the upper and lower support arms 72, 72 protruding horizontally from the support pillar 70. The Bandai main body 30 is fixed to the support arm 72 by fixing means such as bolt fastening. The davit device 60 is returned to a predetermined position on the deck 12 inside the heel side 14.
In this accommodated state, the entire ladder device can be placed inside the ship 10. Since the board-shaped body having a substantially L-shape with each of the ladders 20 to 40 being stacked is accommodated with the surface of the board-shaped body upright, the horizontal thickness is very thin, and the space that occupies the deck 12 is large. Less is enough.
[0034]
[Use of Bandai device]
In order to use the ladder device, first, the restraint of the ladder main body 30 by the support pillar 70 is released from the accommodated state shown in FIG. Defeat Zhangde Bandai 30 to a horizontal position. A suspension wire 52 connected to the winch device 50 is attached to the main body 30 from the stage of the housed state. The auxiliary ladder 40 is not connected to the suspension wire 62 of the davit device 60.
As shown in FIG. 1, the ladder main body 30 on which the auxiliary ladder 40 is stacked is disposed outside the ship 10 along the shore side 14.
[0035]
As shown in FIG. 2, the winch device 50 is operated to feed out the suspension wire 52, and the distal end side of the ladder main body 30 is inclined obliquely downward along the heel side 14. Lower the tip of the Bandai body 30 to the same height as the ground of the quay Q. The horizontal surface portion 32 of the ladder main body 30 is bent with respect to the inclined ladder main body 30 to maintain a horizontal state. The auxiliary ladder 40 is maintained in a state where it is overlapped with the ladder main body 30.
The suspension wire 62 drawn out from the davit device 60 is connected to the auxiliary ladder 40, and the davit device 60 is operated to operate the auxiliary ladder 40. First, the suspension wire 62 is pulled back and the auxiliary ladder 40 is slightly lifted, and then the operating arm of the davit device 60 is swung from a state parallel to the ladder main body 30 in a crossing direction. The auxiliary ladder 40 turns simultaneously with the turning of the davit device 60. As shown in FIG. 1 and FIG. 3, the auxiliary ladder 40 is in a state orthogonal to the ladder main body 30, and the ground roller 41 provided at the tip of the auxiliary ladder 40 reaches the ground surface of the quay Q and comes into contact with the ground. The auxiliary ladder 40 is in contact with the quay Q in a slightly inclined state in which the tip side is slightly lowered although it is in a substantially horizontal state.
[0036]
As shown in FIG. 5, the handrail column 44 of the auxiliary ladder 40 is raised and the handrail cable 45 is stretched over. Also in the Bandai main body 30, the handrail post 37 is erected and the handrail cable 38 is stretched over. A handrail column is also set up for the stretched bridge 20 and a handrail is stretched over.
As shown in FIG. 4, since the movable walking board 42 of the auxiliary ladder 40 is turned down, the movable walking board 42 of the substantially flat auxiliary ladder 40 can be walked from the quay Q. After moving from the auxiliary ladder 40 to the ladder main body 30, it is possible to climb on the ladder main body 30 by stepping on the ladder steps 38 of the inclined ladder main body 30. It is possible to board the deck 12 of the ship 10 from the main body 30 through the extended bridge 20. Of course, it is easy to get off the quay Q from the deck 12 through the overhanging ladder 20, the ladder main body 30, and the auxiliary ladder 40.
[0037]
In such a use state, as long as the horizontal distance between the ship 10 and the quay Q is within a range in which the auxiliary ladder 40 can be bridged, personnel can pass through the ladder device. Since the ladder main body 30 only needs to be arranged along the saddle side 14, the ladder main body 30 in an inclined state can be moved up and down safely and reliably with the saddle side 14 existing on the immediate side. The place where you reach the quay Q away from the quay side 14 uses a flat and easy-to-walk movable walking board of the auxiliary ladder 40 in a horizontal state, so even if the shore side 14 is not on the immediate side, it is easy to pass and give anxiety There is no.
The Bandai main body 30 basically only needs to perform a relatively simple operation of lowering the tip side downward. There is no need for complicated operations such as making a large turn in the horizontal direction simultaneously with tilting. Therefore, the operation mechanism and support mechanism of the Bandai main body 30 can be simplified. Since the auxiliary ladder 40 extending to the quay Q is smaller and lighter than the ladder main body 30, it is not so difficult to perform a horizontal turning operation using the davit device 60 or the like.
[0038]
[When not using auxiliary Bandai>
The usage pattern shown in FIGS. 8 to 10 allows the main body 30 to reach the quay Q directly.
As shown in FIG. 9, the distance between the side 14 of the ship 10 and the quay Q is approaching.
In the case of such a state, it reaches the top of the quay Q just by lowering the tip of the ladder main body 30 obliquely downward as in the case of a normal ladder. What is necessary is just to earth | ground the horizontal surface part 32 which has the front-end | tip of the Bandai main body 30 on the upper surface of the quay Q.
As shown in FIG. 10, the horizontal surface portion 32 turns in the vertical direction with respect to the upper portion of the ladder main body 30 and is in a state parallel to the quay Q. A grounding roller 36 is provided at the root portion of the main body 30 to which the horizontal surface portion 32 is attached, and can slide on the upper surface of the quay Q.
[0039]
The auxiliary ladder 40 is placed on the upper surface of the ladder main body 30. Furthermore, the movable walking plate 42 of the auxiliary ladder 40 is fixed in a state where it is raised along the side of the auxiliary ladder 40. A ladder step 46 is exposed at the center of the auxiliary ladder 40.
In order to pass between the ship 10 and the quay Q, it is possible to go up and down by stepping on the ladder stage 46 of the auxiliary ladder 40 from the ladder stage 38 of the ladder main body 30. If the upper surface of the auxiliary ladder 40 is covered with the movable walking plate 42, it is necessary to move up and down the inclined surface, which is slippery and dangerous, but if the ladder step 46 exists in place of the movable walking plate 42, Like normal Bandai, it can be moved up and down easily.
[0040]
【The invention's effect】
The ladder device according to the present invention is provided with an auxiliary ladder that pivots in the horizontal direction and extends to the side of the ladder main body at the tip of the ladder main body so that the tip of the auxiliary ladder reaches the quay far from the shore side. , Boarding and unloading of personnel goods can be performed. The Bandai body itself is placed in a stable state along the side of the ship, so that the Bandai body in an inclined state can be lifted and lowered safely. The auxiliary ladder from the quay side to the quay does not have a large slope, and since it is a short distance, there is no problem even if it moves away from the quay side to the quay.
[0041]
The operation of the main body of the Bandai is not much different from that of a normal Bandai device, it is only necessary to move from the ship to the outside on the side of the ship and to turn diagonally downward along the side of the ship. On the other hand, since only the horizontal turning is performed, the operation mechanism of the main body and the auxiliary ladder may be relatively simple, and the apparatus structure is not complicated and enlarged.
In particular, in a state where the auxiliary ladder is horizontally swung from the main body of the ladder, a flat walking surface can be configured by the movable walking board provided in the auxiliary ladder, so that the movement to the quay far from the shore side can be performed more safely.
[0042]
In a state where the auxiliary ladder is overlaid on the main body of the ladder, if the movable walk plate is moved to expose the ladder stage, the ladder stage of the main body of the ladder and the ladder stage of the auxiliary ladder are integrated. In this state, when the tip of the ladder main body arranged obliquely downward along the side of the pier reaches the quay, the ship and the quay can be connected to each other by using the ladder main body and the ladder step of the auxiliary ladder without using the auxiliary ladder. You can get on and off.
Therefore, the ladder apparatus of the present invention can easily cope with both the case where the ship's shore side is far from the quay and the case where the ship's shore side is close to the quay. It is possible to perform the movement of various personnel items. It is extremely useful as a ladder device for irregular ships and cargo ships where the distance from the ship to the quay is not fixed.
[Brief description of the drawings]
FIG. 1 is a plan view in a use state of a ladder device representing an embodiment of the present invention.
[Fig. 2] Front view seen from the side of the ship
FIG. 3 is a side view of the main part viewed from the axial direction of the ship.
[Fig. 4] Cross section of auxiliary band
FIG. 5 is a side view showing a handrail structure of the Bandai body.
FIG. 6 is a plan view showing a storage state of the Bandai device.
FIG. 7 is a front view as seen from the side of the ship.
FIG. 8 is a front view of the ship as viewed from the side when the auxiliary ladder is not used.
FIG. 9 is a side view as seen from the axial direction of the ship.
FIG. 10 is a cross-sectional view of the auxiliary ladder part.
[Explanation of symbols]
10 Ship
12 deck
14 Minato side
20 Zhangde Bandai
30 Bandai body
38 ladder steps
40 Auxiliary Bandai
42 Movable walking board
46 Ladder steps
Q Quay

Claims (5)

A ladder device installed on a ship,
Transition is possible between a state where the whole is accommodated in the ship and a state where the upper end side is connected to the ship and the lower end side extends obliquely downward along the side of the ship, and can be moved up and down while extending obliquely downward. Bandai body with a ladder stage,
In a state of turning in the horizontal direction with the one end side pivotally supported on the lower end side of the ladder body as a base, and overlapping the upper surface of the ladder body in parallel along the length direction, and in a direction intersecting with the ladder body Auxiliary ladder that can move between the state where the tip side protrudes sideways and extends , and
The auxiliary ladder includes a ladder stage that can be moved up and down following the ladder stage of the ladder main body in a state of being overlapped with the ladder main body along a length direction, a state in which a flat walking surface is formed covering the ladder stage, and A ladder device comprising a movable walking board that is movable along a state of standing along a side and exposing a ladder step. The upper end side of the ladder main body is connected and supported at one end side, the other end side is connected to the ship, and the extension is freely movable between the state where the one end side is housed in the ship and the state where the one end side protrudes toward the ship side. The Bandai device according to claim 1, further comprising a Bandai. A horizontal plane portion that can form a horizontal plane at the lower end side of the main body of the ladder, and can support a horizontal plane of one end side of the auxiliary ladder in a state where the entire main body of the ladder extends obliquely downward along the side of the ship. The ladder apparatus according to claim 1, further comprising: A suspension line for lifting the auxiliary ladder;
The ladder apparatus according to any one of claims 1 to 3, further comprising a davit device that has a boom that is disposed on the ship and that is pivotable in a horizontal direction, and that winds and feeds the suspension rope suspended from the tip of the boom. The ladder according to any one of claims 1 to 4, wherein the auxiliary ladder further includes a handrail column which is arranged along the both sides of the handrail so as to stand up and down, and a handrail cable stretched over each handrail column. apparatus.

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