JP7246571B2 - roll-up car deck panel - Google Patents

Description

SUMMARY OF THE INVENTION Generally, the present invention relates to a displaceable deck panel arrangement for marine vessels, wherein a deck panel in the deck panel arrangement is displaceable between a lower position and an upper position. Additionally, the present invention relates to a deck panel system.

The onboard cargo displaceable deck panel is used to support cargo at a desired height in the cargo space onboard the ship and is formed by a plurality of vertically displaceable cargo deck panels. The displaceable deck panel is displaced to the desired position. At that position the deck panel can be placed on and supported by the deck panel stop. The types of displaceable deck panels for on-board cargo are mainly classified into two types: roll-up deck panels and elevating deck panels.

Japanese Patent Application Laid-Open No. 2005-067277 WO2002-079025

The simplest displaceable deck panel is an elevating deck panel, which is displaced to the desired height by a device that elevates the deck panel, usually a mobile scissor lift. A device for raising and lowering the deck panel is driven on the deck panel located below the displaceable deck panel. Lifting deck panels are simple and cost effective constructions. Exemplary drawbacks of liftable deck panels are that large quantities of deck panels can be very time consuming to reposition, and deck panel lifts are typically driven by combustion engines, thus reducing cargo space. High noise levels and an overall unhealthy work environment for elevator operators and other personnel working within. An exemplary elevating deck panel is disclosed in US Pat.

An alternative displaceable deck panel type, i.e. a roll-up deck panel, has one actuator, usually centrally located, and an actuator inside a complex structure to allow the deck panel to be rolled up horizontally. There are hoisting wires that are arranged to exit the four corners of the dovetail deck panel. Exemplary drawbacks of roll-up deck panels are the complexity of the solution, the high cost, and the need to grease the wires. Greaseing the wires requires additional repair costs and risks in the event of grease spills on sensitive cargo such as automobiles. An exemplary roll-up deck panel arrangement is disclosed in US Pat.

Flexible solutions for ships are often based on displaceable deck panels of several heights in combination with fixed deck panels. The shipowner's options are therefore cost effective to manufacture and install, but ineffective when deck panels need to be displaced, and even more problematic when a large number of deck panels need to be rearranged. or a deck panel that can be replaced more quickly, but at the cost of being more expensive, with a higher risk of causing damage to the cargo and, in doing so, higher repair costs.

It is an object of the present disclosure to at least partially overcome the above problems. That is, to present a displaceable deck panel that is more cost effective than existing roll-up deck panels and more efficient than elevating deck panels. Another object of the present disclosure is to present a cost effective displaceable deck panel system. A third object of the present disclosure is to provide a method for retrofitting existing elevating deck panel arrangements to roll-up deck panel arrangements.

The first object is solved by a deck panel arrangement for ships. The deck panel arrangement includes a deck panel provided for displacement between a lower position and an upper position, a winch arrangement, a plurality of deck panel side mounting points provided on the deck panel, and a fixed structure of the vessel. a plurality of upper attachment points adapted to be The winch arrangement comprises a plurality of winch devices, each winch device comprising a drive unit, a drum and a winch restraint. Each winch device is assigned one deck panel side mounting point and one upper side mounting point, the winch arrangement is mounted on one of the deck panel side mounting point and the upper side mounting point, and the drive unit is drivingly arranged on the drum. be. A winch restraint is positioned between the drum and the deck panel side mounting point and the upper mounting point for displacing the deck panel between the lower and upper positions by wrapping the winch restraint around the drum and withdrawing it from the drum. make it possible.

Displaceable between a lower position and an upper position means that the winch arrangement allows the deck panel to be displaced to any position between the lower position and the upper position. Further, the deck panel can have lower and upper rest positions, so that, for example, to place the deck panel on the deck panel stop in the upper rest position, the deck panel must be placed higher than the upper rest position. position and lowered to the stop in the upper rest position. Additional rest points may be provided between the upper and lower positions of the deck panel. Therefore, being displaceable between a lower position and an upper position simply defined that the deck panel could be displaced vertically, and the specific upper and lower positions were defined as the deck panel. as the only possible positions to which the can be displaced.

A deck panel attachment point is an attachment point on the deck panel at which the winch restraint interacts with the deck panel to create a lifting force on the deck panel during displacement of the deck panel.

An upper attachment point is an attachment point adapted to be provided on a fixed structure to act as a support for lifting forces lifting the deck panel. A fixed structure is part of, or fixedly connected to, a ship structure or hull.

An exemplary advantage of the disclosed deck panel arrangement is that the winch device can be positioned, for example, on a fixed structure, on the deck panel, or even in or under the deck panel, and the winch device can be placed on all deck panels. The flexibility is that the assignment of restraint support points can be kept simple.

An exemplary simple allocation of winch restraints is that each winch restraint extends between the drum, the deck panel side mounting point, and the upper mounting point in some defined plane. . Multiple attachment points ensure that all planes of the winch restraint are parallel to each other, which simplifies force distribution on the deck panel. It is also possible to position the winch device so that all planes are parallel to the edge of the deck panel.

An exemplary embodiment provides that one upper attachment point is adapted to be positioned substantially vertically aligned with one each deck panel side attachment point in the plane of the deck panel. . An exemplary advantage of this embodiment is that during displacement of the deck panel arrangement, the winch restraint is set such that substantially only vertical forces act on the attachment points, thereby creating less pressure on the entire arrangement. It can be arranged.

An exemplary embodiment provides that the axes of rotation of the drive unit and the drum are coaxial. Some exemplary advantages of that embodiment are ease of construction and compact radial installation space.

According to one exemplary embodiment of the deck panel arrangement, the winch restraint is a strap. Straps may also be referred to as slings, web straps, belts, bands, among others, but straps are used in this disclosure. A strap is defined as a winch restraint that has separate extensions in a plane, i.e. a flat winch restraint. Exemplary straps are made from woven polymers, woven natural fibers and composite wovens, ie, polymers, natural fibers and/or metallic fibers. Illustrative advantages of having the strap as a winch restraint are that it does not require grease, thereby reducing the risk of damaging the cargo, and that the flat side of the strap is more flexible, allowing for greater flexibility in diameter. A short drum can be used, which makes the whole device more compact.

According to an exemplary embodiment of the deck panel arrangement, the drive unit is an electric motor. In one exemplary embodiment, the drive unit is a synchronous reluctance motor. An exemplary advantage of having an electric motor as the drive unit is that the electric motor can be compact and can be easily controlled accurately.

A further exemplary advantage of having a synchronous reluctance motor as the drive unit is that the synchronous reluctance motor can be configured to be controlled in a master/slave fashion, thereby providing precise control without additional sensors. maintenance is achieved. With such a configuration, only one motor needs to be controlled, so control of all drive devices can be easily realized.

According to one exemplary embodiment of the deck panel arrangement, the winch arrangement comprises two winch devices, each winch device being provided on opposite edges of the deck panel. Each winch arrangement therefore comprises two drums each having a winch restraint.

According to an exemplary embodiment of the deck panel arrangement, the winch arrangement comprises four winch devices, each winch device at each corner of the deck panel, e.g. at each deck panel side attachment point, or e.g. Provided in two pairs of mounting points anywhere along the edges of opposing deck panels such that the mounting points, the upper mounting points and the drive unit are located in one plane parallel to the edges of the deck panels. be done.

An exemplary advantage of having four winch assemblies is greater flexibility by assigning one winch assembly to each corner, and flexibility in where to assign winch placements by allowing the use of relatively small drive units. is higher.

An exemplary embodiment of the deck panel arrangement provides that four or more winch devices are provided, thereby increasing lifting capacity while maintaining winch device flexibility and compactness. Exemplary, non-limiting embodiments include 6, 8, or 10 winch devices.

According to one exemplary embodiment of the deck panel arrangement, one of the attachment points is a roll and the winch restraint extends through the roll between and to the other attachment points. Exist and return. One exemplary advantage of this embodiment is higher lifting force.

According to an exemplary embodiment of the deck panel arrangement, the winch device is located at the deck panel side attachment point or the top attachment point. One exemplary advantage of this embodiment is greater flexibility in deck panel placement.

One aspect of this disclosure relates to a deck panel system that includes multiple deck panel arrangements according to any exemplary embodiment disclosed herein.

According to an exemplary embodiment of the deck panel system, the deck panel arrangement is adjacent such that the deck panels form either one of a deck or part of a deck when raised to the same height. are placed.

One exemplary deck panel system includes one control cabinet for controlling displacement of multiple deck panel arrangements, the control cabinet comprising a deck panel selection control unit for selecting which deck panel arrangement to control. .

One aspect of the present disclosure relates to a method of converting a liftable deck panel of a marine vessel into a rollup deck panel of a marine vessel. The method comprises the steps of providing a deck panel side attachment point at each corner of the deck panel, providing an upper side attachment point on the support structure of the vessel, and providing at least two winch devices on two opposite edges of the deck panel. a step of providing a winch device assigned to either the deck panel or the ship's support structure; positioning a winch restraint between each drum of the winch arrangement, one deck panel side mounting point, and one upper mounting point so that it can be displaced between and upper positions; Prepare.

One exemplary advantage of this method is that a liftable deck panel on a ship can be converted to a more flexible roll-up deck panel quickly and at low cost, yet still with the deck panel in position onboard. is.

The exemplary embodiment of the method further comprises the steps of providing a control cabinet to the ship's support structure and connecting the winch device to the control cabinet such that the control cabinet can electronically control the winch device.

The invention will now be described, by way of example, with reference to the accompanying schematic drawings.

FIG. 1 is a schematic diagram of a vessel. Figures 2a-2c are schematic representations of the displacement of the deck panel. Figures 3a and 3b are schematic diagrams of exemplary deck panel arrangements. FIG. 4 is a schematic diagram of an exemplary deck panel system. Figures 5a and 5b are schematic diagrams of exemplary configurations of the winch apparatus in a deck panel arrangement.

Those skilled in the art will readily appreciate that the various features disclosed herein can be modified, and that the various embodiments disclosed and/or claimed can be combined without departing from the scope of the disclosure. will understand.

Details of exemplary embodiments of deck panel arrangements, winch devices and deck panel systems are disclosed below. It should be emphasized that the illustrated embodiments are used as examples only and are in no way intended to limit the scope of the present disclosure.

FIG. 1 discloses a schematic diagram of a vessel 1 in which a deck panel arrangement 100 can be provided. The displaceable deck panel arrangement 100 is typically provided on RORO vessels.

Figures 2a-2c disclose a deck panel arrangement 100 with a displaceable deck panel 110 in an upper position in Figure 2a, an intermediate position in Figure 2b and a lower position in Figure 2c. Displaceable deck panel 110 is displaced between a lower position and an upper position by actuating winch arrangement 120 configured to exert a lifting force between deck panel 110 and stationary structure 112 of vessel 1 . can be made When the deck panel 110 is between rest positions, ie between stops 111, the lifting force supports the deck panel. In the upper and lower positions of the deck panel 110, the deck panel 110 rests on the stops 111 so that the winch arrangement 120 is released when the deck panel 100 is positioned in the upper or lower position. The winch arrangement 120 includes a winch restraint 123 that transfers lifting forces between the fixed structure 112 of the vessel 1 and the deck panel 110 .

Deck panel arrangement 100 is controlled from control cabinet 210 of FIG. The control cabinet 210 thus comprises electronic communication means 211 with the winch arrangement 120 of each deck panel 110 . Electronic communication means 211 may be wired or wireless.

Displacement of deck panel 110 is provided by winch arrangement 120 . The winch arrangement 120 is disclosed in greater detail in conjunction with FIGS.

3a and 3b disclose two exemplary embodiments of a deck panel arrangement 100. FIG. The deck panel arrangement 100 of FIG. 3a is provided with a winch arrangement 120 comprising two drive units 121 and the deck panel arrangement 100 of FIG. 3b is provided with a winch arrangement 120 comprising four drive units 121. In any exemplary embodiment, the deck panel arrangement 100 comprises a deck panel 110 , a winch arrangement 120 , a plurality of deck panel side attachment points 130 and a plurality of upper side attachment points 131 provided on the deck panel 110 . The upper attachment point 131 is located on the stationary structure 112 of the vessel 1 .

The winch arrangement 120 comprises a plurality of winch devices 129 . Each winch arrangement 129 comprises at least one winch restraint and a drum 122 assigned to the winch restraint. In the exemplary embodiment disclosed in FIG. 3a, each winch device 129 comprises one drive unit 121 driving two drums 122, each drum being assigned to one winch restraint 123 respectively. The drive unit is centrally located on the underside of the deck panel 110 so that the winch restraint 123 extends along the edge of the deck panel toward the deck panel side mounting point. Drive unit 121, drum 122, and the extension of winch restraint 123 between drum 122 and deck panel attachment point 130 are preferably positioned below the deck panel surface.

In the exemplary embodiment disclosed in FIG. 3b, each winch device 129 comprises one drive unit 121 driving one drum 122, each drum 122 being assigned to one winch restraint 123 respectively.

In both of the exemplary embodiments disclosed in Figures 3a and 3b, the drive unit 121 is located on the deck panel 120, although in alternative arrangements the drive unit 121 or some of the drive units may be placed on the ship. 1 fixed structure 112 .

In any exemplary embodiment of the deck panel arrangement 100 disclosed in FIGS. 3a and 3b, the winch restraint extends between the deck panel side attachment point 130 and the upper side attachment point 131. As shown in FIG. Furthermore, a winch restraint is attached to each drum 122 which is provided in driving connection to the drive unit 121 of the winch device 129 . The winch restraint 123 may be configured to extend between the deck panel side mounting point 130 and the upper mounting point 131 once or several times without departing from the scope of this disclosure.

FIG. 4 discloses an exemplary system 200 for deck panel arrangement 100 . The system 200 comprises four deck panels 110_1, 110_2, 110_3, 110_4, which can be individually controlled from the control cabinet 210. A control cabinet 210 is electronically connected to the winch arrangement 120 of each deck panel 110_1-110_4. The control cabinet 210 comprises a deck panel selection control unit 220, which can select which deck panel 110_1-110_4 to control. In addition, the control cabinet 210 includes at least an upward displacement button 230 and a downward displacement button 240, the actuation of which controls the upward and downward movement of the deck panels 110_1-110_4. The vertical movement of the deck panels 110_1-110_4 is selected by the deck panel selection control unit 220. FIG. Preferably, the control cabinet is arranged on a fixed structure 112 of the ship 1 .

In different embodiments, deck panel system 200 may comprise any number of deck panel arrangements 100. FIG. In one embodiment, deck panels 110_1, 110_2, 110_3, 110_4 are arranged to form a deck when lifted to the same height. In another embodiment, the deck panels 110_1, 110_2, 110_3, 110_4 are arranged to form part of the deck when raised to the same height. In yet another embodiment, a first set of deck panels are arranged side by side and any number of second and subsequent sets are arranged in the direction of extension of the vessel 1 such that these sets of deck panels are identical. Forms a deck when lifted to height.

5a and 5b disclose partial views of the deck panel 110, here showing an exemplary configuration of the winch device 129. FIG. A winch device 129 comprises a drive unit 121 and a drum 122 . The drive unit 121 drives a drum 122, which in the disclosed embodiment is coaxially arranged with the drive unit 121. As shown in FIG. The drum 122 is attached to the winch restraint 123 of the winch arrangement 120 such that the winch restraint 123 can be wrapped around and withdrawn from the drum 122 when the drive unit 121 is actuated. The winch arrangement 120 includes multiple winch devices 129 and multiple winch restraints 123 . Therefore, only one winch arrangement 120 and one winch restraint 123 are shown in FIGS. 5a and 5b, respectively.

In Figure 5a the drive unit 121 of the winch device 129 is located at the upper mounting point 131 of the fixed structure 112 of the ship. A winch restraint 123 extends downwardly from the drum 122 to a deck panel side attachment point 130 and upwardly back to an upper attachment point 131 . A roll 133 is positioned at the deck panel side attachment point 130 and the winch restraint 123 turns around the roll 133 back to the upper attachment point 131 . At the upper attachment point 131, the winch restraint 123 is fixedly attached such that the deck panel 110 is lifted by the winch restraint 123 as it is wrapped around the drum 122.

In the embodiment of FIG. 5b, the winch arrangement 129 is instead located at the deck panel side attachment point 130. In the embodiment of FIG. This places the roll at the upper mounting point and allows the winch restraint 123 to turn around the roll.

Two exemplary embodiments disclosed in FIGS. 5a and 5b demonstrate the flexibility of the disclosed deck panel configuration 100. FIG. This flexibility allows winch placement 129 locations to be selected based on typical vessel configurations when retrofitting existing liftable deck panels to a deck panel configuration 100 according to the present disclosure. Within the same vessel 1 or even on the same deck panel, the winch arrangement 129 can be positioned at either or both the deck panel side mounting point 130 and the upper mounting point 131 depending on the space available at each pair of mounting points. can be placed.

A winch arrangement 129 may comprise a gearbox 124 between the drum 122 and the drive unit 121 .

The unique combination of features of the disclosed deck panel construction provides great flexibility.

That is, firstly, when multiple winch devices 129 are used, the drive unit 121 can be made more compact, and the drive unit 121 can be arranged at different positions on the deck panel and/or the fixed structure 112 of the ship 1. be able to.

More flexibility and a more compact drive unit is achieved when having one drive unit at each corner.

In another exemplary embodiment that enhances flexibility and compactness, the winch restraint 123 is a strap. Since the strap is highly flexible in the direction perpendicular to the plane of extension, the diameter of the drum 122 can be reduced. This makes it possible to realize a compact winch device that requires less installation space.

Claims (13)

A deck panel arrangement (100) for a ship (1), said deck panel arrangement (100) comprising:
a deck panel (110) provided to be displaced between a lower position and an upper position;
a winch arrangement (120);
a plurality of deck panel side attachment points (130) provided on the deck panel (110);
a plurality of upper attachment points (131) adapted to be provided on a fixed structure (112) of said vessel (1);
with
The winch arrangement (120) comprises:
a plurality of winch restraints (123), said winch restraints (123) respectively winding said winch restraints (123) on and withdrawing said winch restraints (123) from each of said drums (122), thereby said each said drum (122) and one assigned deck panel side attachment point (130) and one assigned so that the deck panel (110) can be displaced between said lower position and said upper position; said plurality of winch restraints (123) positioned between and at the upper mounting points (131) that are positioned;
A plurality of winch devices (129), each of said winch devices (129) comprising a drive unit (121), said drum (122) and said winch restraint (123), said drive unit comprising: , the plurality of winch devices (129) in driving connection with each of the drums (122);
A deck panel arrangement (100) comprising: The deck panel arrangement of claim 1, wherein said winch restraint (123) is a strap. 3. A deck panel arrangement according to claim 1 or 2, wherein said drive unit is an electric motor, preferably a synchronous reluctance motor. 4. The deck panel arrangement of claim 3, wherein said electric motors are configured to be controlled in a master/slave fashion. A deck panel arrangement according to any preceding claim, wherein said winch arrangement (120) comprises four said winch devices (129) provided at each corner of said deck panel (110). one of said attachment points (130, 131) is a roll (133), said winch restraint extends through said roll (133) to said attachment point (130/131); and A deck panel arrangement as claimed in any preceding claim, extending back to the other said attachment point (130/131). A deck panel arrangement according to any preceding claim, wherein said winch device (129) is located at said deck panel side mounting point (130) or said upper mounting point (131). A deck panel arrangement according to any preceding claim, wherein said winch restraint (123) is a flat winch restraint. A deck panel system (200) comprising a plurality of said deck panel arrangements (100) according to any one of claims 1-8. The deck panel arrangement (100) is arranged adjacently such that the deck panels (110_1-110_4) form either a deck or part of a deck when raised to the same height. 10. The deck panel system (200) of Claim 9. Said system (200) comprises one control cabinet (210) for controlling the displacement of a plurality of said deck panel arrangements (100), said control cabinet (210) controlling any deck panel arrangement (100, 100_1-100_4). 11. A deck panel system (200) according to claim 9 or 10, comprising a deck panel selection control unit (220) capable of selecting whether to control the . A method of retrofitting a liftable deck panel of a ship (1) to a roll-up deck panel arrangement (100) of the ship (1), said method comprising the steps of:
providing a deck panel attachment point (130) at each corner of the deck panel (110);
- fixedly providing an upper attachment point (131) to the support structure of said vessel (1);
- providing at least two winch devices (129) on two opposite edges of said deck panel (110), said winch devices (129) being connected to said deck panel (110) and said vessel (1); a step assigned to one of the support structures of
- enabling said deck panel (110) to be displaced between a lower position and an upper position by wrapping and withdrawing a winch restraint (123) around each drum ( 122 ) ; said winch restraints (123) positioned between each said drum (122) of said winch arrangement (129) and one said deck panel side mounting point (130) and one said upper mounting point (131); and
How to prepare. The method includes
- providing a control cabinet (210) on the support structure of said ship (1);
- connecting said winch device (129) to said control cabinet (210) so that said winch device (129) can be electronically controlled by said control cabinet (210);
13. The method of claim 12, further comprising:

Images