KR20230163597A - Hoistable car deck panel - Google Patents

Abstract

A deck panel device (100) for a ship (1) is disclosed, the deck panel device (100) comprising a deck panel (110) provided for displacement between a lower and upper position, a winching device (120), It includes a plurality of deck panel attachment points 130 provided to the deck panel 110, and a plurality of upper attachment points 131 provided to the fixed structure 112 of the ship 1. The hoisting device 120 includes a plurality of hoisting restraints 123, each of which has a respective upper attachment point 131 between one assigned deck panel attachment point 130 and one assigned upper attachment point 131. disposed on the drums 122 so that the hoisting restraints 123 can be wound around and released from their respective drums 122, thereby holding the deck panel 110 between its lower and upper positions. It can be displaced.

Description

HOISTABLE CAR DECK PANEL}

The present invention relates generally to a displaceable deck panel device for ships, wherein the deck panels of the device are displaceable between a lower and an upper position. The invention also relates to a system of deck panel devices.

A displaceable deck panel for cargo on board a ship is used to support cargo at a required height in a cargo space on a ship and is formed by a plurality of vertically displaceable deck panels for cargo. The displaceable deck panel is displaced to its desired position, where it can be positioned and supported on deck panel stops. There are two main types of displaceable deck panels for cargo on ships: hoistable deck panels and liftable deck panels.

The simplest displaceable deck panel is a liftable deck panel, which is displaced to the required height by means of a device for lifting the deck panel (usually in the form of a mobile scissor lift). The device for lifting the deck panel is driven from a deck panel located below the displaceable deck panel. Liftable deck panels are a simple and cost-effective construction. Exemplary disadvantages of liftable deck panels include that repositioning larger quantities of deck panels is very time consuming and also deck panel lifts are typically driven by combustion engines, making them difficult for lift operators and other personnel working in the cargo space. It creates a noisy and generally unhealthy work environment. One exemplary liftable deck panel is disclosed in JP 2005 067277A.

An alternative type of displaceable deck panel, namely hoistable deck panel, is generally provided with one centrally placed actuator and hoisting wires placed in the composite structure outside the four corners of the deck panel to ensure uniform hoisting of the deck panel. makes possible. Exemplary disadvantages of rollable deck panels are that they are a complicated solution, are expensive, the wires need to be additionally greased, which results in additional maintenance, and grease spills on sensitive cargo such as automobiles. There is a risk that it will happen. One exemplary retractable deck panel device is disclosed in WO 2002 079025A1.

Flexible solutions for ships are based on displaceable deck panels of different heights, often used in combination with fixed deck panels. Owners of ships therefore choose panels that are cost-effective to manufacture and install but are ineffective when deck panels need to be displaced, which becomes an additional problem when multiple deck panels need to be repositioned; Alternatively, they may be able to be repositioned more quickly, but instead choose expensive deck panels, which involve high maintenance and also risk causing damage to the cargo.

One objective of the present disclosure is to overcome at least partially the above problems, i.e. to propose a displaceable deck panel that is more cost effective than existing rollable deck panels and also more efficient than liftable deck panels. Another object of the present disclosure is to propose a cost-effective system of displaceable deck panel devices. A third object of the present disclosure is to propose a method for upgrading an existing liftable deck panel device to a rollable deck panel device.

The first object is achieved with a deck panel device for ships, the deck panel device comprising:

- deck panels provided for displacement between lower and upper positions;

- winching device,

- a plurality of deck panel attachment points provided on the deck panel, and

- comprising a plurality of upper attachment points adapted to be provided on the fixed structure,

The hoisting device includes a plurality of hoisting mechanisms, each hoisting mechanism including a drive unit, a drum and a hoisting restraint, one deck panel attachment point and one top attachment point being assigned to each hoisting mechanism, the hoisting device having the Attached to one of the

The drive unit is driven and arranged with the drum, and the hoisting restraint is disposed on the drum between the deck panel attachment point and the upper attachment point, so that the hoisting restraint can be wrapped around the drum and released from it, so that the deck panel can be wrapped on its lower side. It can be displaced between the upper and lower positions.

Displaceable between the lower and upper positions means that the deck panel can be displaced by the hoisting device to any position between the lower and upper positions. Additionally, the deck panel may have a lower resting position and an upper resting position, such that the deck panel is positioned in its upper resting position, for example on a deck panel stopper, from the resting position down to the stopper. It must be displaced higher than the upper rest position to be lowered to . Additional resting points may be provided between the upper and lower deck panel positions. Thus, by being displaceable between the lower and upper positions, the deck panel can be displaced in the vertical direction without limiting the specific upper and lower positions as the only possible positions in which the deck panel can be displaced.

Deck panel attachment points are attachment points on the deck panel at which the hoisting restraints interact with the deck panel to induce an uplift force on the deck panel during displacement.

The upper attachment point is an attachment point intended to be provided to the fixed structure to act as a support for the lifting force lifting the deck panel. A fixed structure is part of or fixedly connected to the ship structure or hull.

An exemplary effect of the disclosed deck panel device is that the hoisting device is flexible in that it can be placed, for example, on a fixed structure, on a deck panel or even within or below a deck panel and also maintains a simple assignment of all hoisting restraint support points. will be.

An exemplary simple allocation of the hoisting restraints is that each hoisting restraint extends in one defined plane between the drum, the deck panel attachment point and the upper attachment point. Due to the plurality of attachment points, all planes of the hoisting restraints are arranged parallel to each other, and a simple force distribution on the deck panels is thus achieved. The hoisting mechanism may be arranged so that all planes are parallel to the edges of the deck panels.

According to one exemplary embodiment, one upper attachment point is arranged to be arranged essentially in alignment with one respective deck panel attachment point in a direction perpendicular to the plane of the deck panel. As an exemplary effect of this, the hoisting restraints can be arranged so that during displacement of the deck panel device, only essentially vertical forces act on the attachment points, thereby inducing smaller stresses in the overall device.

According to one exemplary embodiment, the axes of rotation of the drive unit and the drum are coaxial. As an exemplary effect of this, easy construction and compact radial installation space are obtained.

According to an exemplary embodiment of the deck panel device, the hoisting restraints are straps. Straps may also be referred to as slings, web straps, belts, bands, among others, but in the present disclosure, straps will be used and are defined as winching restraints having portions that extend individually in one plane, i.e., flat winching restraints. do. Exemplary straps are made of polymer textiles, natural fiber textiles and composite textiles, that is, polymer, natural and/or metallic fibers. An exemplary effect of having a strap as a lifting restraint is that no grease is required and, due to the flexibility of the flat side of the strap, the risk of cargo damage is reduced, and a reduced drum diameter can be used, so that the overall device is more stable. It can be made compact.

According to one exemplary embodiment of the deck panel device, the drive unit is an electric motor. In one exemplary embodiment, the drive unit is a synchronous reluctance motor. As an exemplary effect of having an electric motor as a drive unit, the electric motor can be made compact and precise control can be easily promoted.

As a further exemplary effect of having a synchronous reluctance motor as the drive unit, the synchronous reluctance motor can be arranged to be controlled in a master/slave configuration, so that maintained accurate control is achieved without any additional sensors. With this configuration, easy control of all drive units is realized, since only one motor needs to be controlled.

According to one exemplary embodiment of the deck panel device, the hoisting device comprises two hoisting devices each provided on mutually opposite deck panel sides, so that each hoisting mechanism is provided with two drums having respective hoisting restraints. .

According to one exemplary embodiment of the deck panel device, the hoisting device comprises four hoists, each provided at a respective corner of the deck panel, e.g. at each deck panel attachment point or anywhere along mutually opposite deck panel sides in pairs. A device comprising, for example, a deck panel attachment point, a top attachment point and a drive unit arranged in a plane parallel to one side of the deck panel.

As an example effect of having four hoisting devices, more flexibility is obtained because one hoisting device can be assigned to each corner and also a relatively small drive unit can be used, thus determining where the hoisting device will be assigned. A high degree of flexibility is achieved in terms of operation.

According to one exemplary embodiment of the deck panel device, more than four hoisting devices are provided, thus increasing the lifting capacity while maintaining flexibility and compactness of the hoisting devices. Exemplary non-limiting embodiments include 6, 8, or 10 hoisting devices.

According to one exemplary embodiment of the deck panel device, one of the attachment points is a roll and the winching restraint extends between the other attachment points via the roll and back to the other attachment point. As an exemplary effect of this, a higher lifting force is obtained.

According to one exemplary embodiment of the deck panel device, the hoisting device is disposed at the deck panel attachment point or upper attachment point. As an exemplary effect of this, high flexibility of the deck panel device is achieved.

One aspect of the present disclosure relates to a system of deck panel devices, wherein the system of deck panel devices includes a plurality of deck panel devices according to example embodiments disclosed herein.

According to one exemplary embodiment of the system of deck panel devices, the deck panel devices are arranged adjacently so that the deck panels are raised to the same height to form one of the decks or a portion of the deck.

One exemplary system of deck panel devices includes a control cabinet for controlling the displacement of a plurality of deck panel devices, the control cabinet having a deck panel device that allows selection of which deck panel device or deck panel devices to control. Includes panel selection control unit.

One aspect of the present disclosure relates to a method of converting a ship's liftable deck panel to a ship's hoistable deck panel, the method comprising:

● providing deck panel attachment points at each corner of the deck panels;

● Providing an upper attachment point to the support structure of the vessel;

● providing at least two hoisting devices on two mutually opposite sides of the deck panel assigned to the deck panel or support structures of the ship, and

● disposing a winching restraint between each drum of the hoisting mechanism, one deck panel attachment point and one upper attachment point;

Thus, the deck panel can be displaced between the lower and upper positions by wrapping the hoisting restraints around and unwinding from their respective drums.

As one exemplary effect of the present method, the liftable deck panels of a ship can be converted to more flexible rollable deck panels quickly, at low cost, and while the deck panels still remain in their position on the ship.

Exemplary embodiments of the method include:

● providing a control cabinet on the support structure of the ship, and

● Connecting the hoisting mechanism to the control cabinet so that the control cabinet can electronically control the hoisting mechanism.

Now, the present invention will be described by way of example with reference to the accompanying drawings.
Figure 1 shows a schematic diagram of the vessel.
Figures 2a-2c show schematic diagrams of the displacement of deck panels.
3A-3B show schematic diagrams of exemplary deck panel devices.
4 shows a schematic diagram of an exemplary system of deck panel equipment.
5A-5B show schematic diagrams of exemplary arrangements of the hoisting mechanism of a deck panel device.

Those skilled in the art will readily appreciate that the various features disclosed in the description may be modified and the various disclosed and/or claimed embodiments may be combined without departing from the scope of the present disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed description of exemplary embodiments of deck panel devices, winching mechanisms, and systems of deck panel devices will now be disclosed. It should be emphasized that the shown embodiments are illustrative only and are in no way intended to limit the scope of the present disclosure.

Figure 1 shows a schematic diagram of a ship 1 on which a deck panel device 100 may be provided. The displaceable deck panel device 100 is typically found on roro-ships.

Figures 2a-c show a deck panel device 100, which has a deck panel 110 that is displaceable in its upper position (Figure 2a), middle position (Figure 2b) and lower position (Figure 2c). . Upon operating the lifting device 120, which is arranged to exert a lifting force between the deck panel 110 and the fixed structure 112 of the vessel 1, the displaceable deck panel 110 is moved between the lower and upper positions. can be displaced from The lifting force supports the deck panel 110 when it is between its resting positions, i.e. between the stoppers 111. In the upper and lower positions, the deck panel 110 is placed on the stopper 111, so that the hoisting device 120 is unloaded when the deck panel 100 is placed in its upper and lower positions. The hoisting device 120 is provided with a hoisting restraint 123, which transmits the lifting force between the fixed structure 112 of the vessel 1 and the deck panel 110.

The deck panel device 100 is controlled from a control cabinet 210 in FIG. 5 , which is provided with controls for controlling at least the upward and downward displacement of the deck panel 110 . The control cabinet 210 is therefore provided with electronic communication means 211 together with a hoisting device 120 for each deck panel 110 . The electronic communication means 211 may be wired or wireless.

Displacement of the deck panel 110 is effected by a hoisting device 120, which is disclosed in more detail with reference to FIGS. 3, 4 and 5.

3A and 3B show two exemplary embodiments of deck panel device 100. The deck panel device 100 in FIG. 3A is provided with a hoisting device 120 having two drive units 121, and the deck panel device 100 in FIG. 3B is provided with a hoisting device 120 with four drive units 121. (120) is provided. In both exemplary embodiments, the deck panel device 100 includes a deck panel 110, a hoisting device 120, a plurality of deck panel attachment points provided on the deck panel 110, and a plurality of upper attachment points 131. This is provided. The upper attachment point 131 is disposed on the fixed structure 112 of the ship 1.

The hoisting device 120 includes a plurality of hoisting mechanisms 129 . Each hoisting mechanism 129 includes at least one hoisting restraint and a drum 122 allocated therefor. In the exemplary embodiment shown in FIG. 3A , each hoisting mechanism 129 is provided with a drive unit 121 which drives two drums 122, each drum having one drum. It is assigned to the lifting restraint department (123). The drive unit is provided in the middle of the mutually opposite sides of the deck panel 110, and the hoisting restraint portion 123 extends along the deck panel side towards the deck panel attachment point. The drive unit 121, the drum 122, and the extension of the hoisting restraint 123 between the drum 122 and the deck panel attachment point 130 are preferably disposed below the deck panel surface.

In the exemplary embodiment shown in FIG. 3B , each lifting mechanism 129 is provided with one drive unit 121 which drives one drum 122 and each drum 122 It is assigned to this one lifting restraint section 123.

In both exemplary embodiments shown in FIGS. 3A and 3B, the drive unit 121 is disposed on the deck panel 120; however, in an alternative arrangement, the drive unit 121 or a portion of the drive unit is located on the ship 1. ) can be placed on the fixed structure 112.

In both exemplary embodiments of deck panel device 100 shown in FIGS. 3A and 3B, the hoisting restraint extends between deck panel attachment point 130 and upper attachment point 131. The hoisting restraints are further attached to each drum 122 provided in driving connection with the drive unit 121 of the hoisting mechanism 129. The hoisting restraint 123 may be arranged to extend once or multiple times between the deck panel attachment point 130 and the upper attachment point 131 without departing from the scope of the present disclosure.

4, an exemplary system 200 of deck panel device 100 is shown. The system 200 includes four deck panels 110_1, 110_2, 110_3, 110_4, which can be individually controlled from the control cabinet 210. The control cabinet 210 is electronically connected to the hoisting device 120 of each deck panel 110_1 - 110_4. The control cabinet 210 includes a deck panel selection control unit 220, which can select which of the deck panels 110_1 - 110_4 is to be controlled. The control cabinet 210 further includes at least upward and downward displacement buttons 230, 240, which cause upward and downward movement of the deck panels 110_1 - 110_4 selected by the deck panel selection control unit 220. Controlled by operation. The control cabinet is preferably arranged on the fixed structure 112 of the vessel 1.

In another embodiment, the system of deck panel devices 200 includes any number of deck panel devices 100. In one embodiment, deck panels 110_1, 110_2, 110_3, 110_4 are arranged to form a deck when deck panels 110_1, 110_2, 110_3, 110_4 are raised to the same height. In another embodiment, the deck panels are arranged so that deck panels 110_1, 110_2, 110_3, 110_4 are raised to the same height to form part of the deck. In another embodiment, a first set of deck panels are placed side by side and any number of subsequent sets are placed in the direction of extension of the vessel 1, so that when raised to the same height they form a deck.

5A and 5B show a partial view of deck panel 110 and an exemplary arrangement of hoisting mechanism 129 is shown. The hoisting mechanism 129 includes a drive unit 121 and a drum 122. The drive unit 121 drives the drum 122 , which in the embodiment shown is arranged coaxially with the drive unit 121 . The drum 122 is attached to the hoisting restraint 123 of the hoisting device 120 so that upon operation of the drive unit 121 the hoisting restraint 123 can be wound around the drum 122 and released from it. . The hoisting device 120 includes a plurality of hoisting mechanisms 129 and a plurality of hoisting restraints 123, so that only one hoisting device 120 and hoisting restraints 123 are shown in FIGS. 5A and 5B. .

In FIG. 5A , the drive unit 121 of the hoisting mechanism 129 is arranged at an upper attachment point 131 on the vessel's fixed structure 112 . The hoisting restraint portion 123 extends from the drum 122 downward to the deck panel attachment point 130 and upward again to the upper attachment point 131. A roll 134 is disposed at the deck panel attachment point 130, and the winching restraint portion 123 is guided around the roll and back up to the upper attachment point 131. The hoisting restraint is fixedly attached to the upper attachment point 131, so that when the hoisting restraint 123 is wound around the drum 122, the deck panel 110 is lifted by the hoisting restraint 123.

In the embodiment of FIG. 5B , the hoisting mechanism 129 is instead attached to the deck panel attachment point 130 so that the roll is positioned at the upper attachment point and the hoisting restraint 123 is guided around that upper attachment point. It can be.

Two exemplary embodiments shown in FIGS. 5A and 5B illustrate the flexibility of the deck panel device 100 shown. Therefore, when retrofitting an existing liftable deck panel to the deck panel device 100 according to the present disclosure, the position of the hoisting mechanism 129 can be selected according to the general ship layout. On the same vessel (1) or even on the same deck panel, the hoisting mechanism (129) can be mounted at either or both the deck panel attachment point (130) and the top attachment point (131) depending on the space available at each pair of attachment points. can be placed in

The hoisting mechanism 129 may be provided with a gearbox 124 between the drum 122 and the drive unit 121 .

High flexibility is achieved through the unique combination of features of the disclosed deck panel device.

Firstly, the use of multiple hoisting mechanisms 129 allows for smaller drive units 121 which can be placed on the deck panels and/or fixed structures 112 of the vessel 1 at different positions. there is.

By having one drive unit at each corner, additional flexibility and a much smaller drive unit are realized.

Another flexibility and compactness enhancement is an exemplary embodiment in which the hoisting restraint 123 is a strap. Since the strap has high flexibility in the direction perpendicular to the plane of its extension, the strap allows for a drum 122 of small diameter. This allows for a compact hoisting mechanism, which requires a much smaller installation space.

Claims (11)

As a deck panel device 100 for a ship 1, the deck panel device 100 includes,
- deck panels 110 provided for displacement between lower and upper positions,
- winching device (120),
- a plurality of deck panel attachment points 130 provided on the deck panel 110, and
- comprising a plurality of upper attachment points (131) adapted to be provided on the fixed structure (112) of the vessel (1),
The hoisting device 120 includes a plurality of hoisting restraints 123,
Each of the hoisting restraints is disposed on a respective drum 122 between one assigned deck panel attachment point 130 and one assigned upper attachment point 131, such that each of the hoisting restraints 123 can be wrapped around drums 122 and unwound from each drum 122 to displace deck panel 110 between lower and upper positions;
The lifting device 120 includes a plurality of lifting mechanisms 129,
Each of the plurality of lifting mechanisms includes a driving unit 121, a drum 122, and a lifting restraint part 123, and the driving unit 121 is driven and connected to each drum 122,
The hoisting restraint portion 123 is a flat-shaped strap having portions that extend individually in one plane. According to paragraph 1,
Deck panel device, wherein the drive unit is an electric motor. According to paragraph 2,
A deck panel device in which electric motors (121) are arranged to be controlled in a master-slave configuration. According to paragraph 1,
The hoisting device (120) is a deck panel device comprising four hoisting mechanisms (129) each provided at each corner of the deck panel (110). According to paragraph 1,
One of the attachment points 130 and 131 is a roll 133, and the lifting restraint extends between the other attachment points 130/131 via the roll 133 and back to the other attachment point 130/131. A deck panel device. According to paragraph 1,
The hoisting mechanism (129) is disposed at the deck panel attachment point (130) or the upper attachment point (131). A system (200) of deck panel devices comprising a plurality of deck panel devices (100) according to claim 1. In clause 7,
The deck panel device (100) is a system (200) of a deck panel device, wherein the deck panels (110_1 - 110_4) are arranged adjacently to form one of the decks or a portion of the deck when raised to the same height. In clause 7,
The system 200 includes a control cabinet 210 for controlling the displacement of a plurality of deck panel devices 100, wherein the control cabinet 210 is configured to control either the deck panel device 100 or the deck panel device. A system (200) of deck panel devices, comprising a deck panel selection control unit (220) that allows selection of which to control (100_1 - 100_4). A method of converting a liftable deck panel of a ship (1) into a hoistable deck panel (100) of a ship (1), comprising:
● Providing a deck panel attachment point (130) at each corner of the deck panel (110),
● Providing a fixed upper attachment point (131) to the support structure of the vessel (1),
● providing at least two hoisting mechanisms (129) on two mutually opposite sides of the deck panel (100), which are assigned to the deck panel (110) or the support structure of the ship (1), and
● By comprising the step of disposing a hoisting restraint (123) between each drum (122) of the hoisting mechanism (129), one deck panel attachment point (130) and one upper attachment point (131),
The deck panel (110) can be displaced between the lower and upper positions by wrapping the lifting restraints (123) around each drum (122) and unwinding them from each drum (122),
The method according to claim 1, wherein the lifting restraint (123) is a flat-shaped strap with portions extending individually in one plane. According to clause 10,
● providing a control cabinet (210) on the support structure of the vessel (1), and
● The method further comprising connecting the hoisting mechanism (129) to the control cabinet (210) so that the control cabinet (210) can electronically control the hoisting mechanism (129).