KR102490969B1 - Movable deck lifting apparatus - Google Patents

Abstract

Provided is a movable deck lifting apparatus which is able to adjust the height of several decks at the same time by a simple method. According to the present invention, the movable deck lifting apparatus comprises: a plurality of movable decks successively arranged on the same plane and vertically movably installed; a plurality of lifting wires installed on each of the movable decks, and hanging the movable decks and moving the movable decks up and down, and extended toward an upper side of the movable decks; a driving wire extended along the movable decks and moving straight in a first direction which is a longitudinal direction; one or more wire driving units moving the driving wire straight in the first direction; a moving unit including moving bodies installed on each movable deck and movable in the first direction and connected to the lifting wires, a pair of wedge blocks installed on the moving bodies and pressing the driving wire from both sides with the driving wire in the middle and fixing the driving wire on the moving bodies, a pair of slope guides formed on the moving bodies and storing the wedge blocks, and a fastening unit moving the wedge blocks in the first direction and coupling or decoupling the wedge blocks and the driving wire; and a plurality of sieves guiding the lifting wires to the moving bodies by converting the direction of the lifting wires to be parallel to the driving wire.

Description

Movable deck lifting apparatus {Movable deck lifting apparatus}

The present invention relates to a movable deck lifting device, and more particularly, to a movable deck lifting device capable of simultaneously adjusting the heights of several decks in a simple manner.

A roll-on roll-off vessel is a cargo ship capable of transporting trucks, trailers, or general vehicles. Such a ro-ro ship has a feature that vehicles can directly board and disembark with their own power without using a separate crane. That is, a ro-ro ship means a ship that can load (roll-on) or unload (roll-off) vehicles capable of self-moving on a transport device such as a truck or trailer and load them on or off the ship through an inclined plate.

These ro-ro ships can load and transport vehicles of different sizes and heights, from passenger cars to medium-large heavy equipment. At this time, there is a problem in that the volume of the cargo hold is wasted because the overall height of the passenger car is very low compared to that of medium or large-sized heavy equipment. As a result, a cargo loading amount may be reduced as a whole, resulting in a decrease in transport efficiency.

Therefore, conventionally, in order to increase the volumetric efficiency of the passenger car, a separate lift device is installed in the cargo hold to load the passenger car in multiple stages. However, the conventional deck has a problem in that the height is adjusted using a separate lift device, and the operation is inconvenient and takes a lot of time and money. In addition, when a lift device is installed for each deck, there is a problem in that space is lost due to lift installation and installation costs are excessive.

Republic of Korea Patent Registration No. 10-2316013, (2021. 10. 22)

The technical problem of the present invention is to solve this problem, to provide a movable deck lifting device capable of simultaneously adjusting the height of several decks in a simple manner.

The technical problem of the present invention is not limited to the above-mentioned problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

The movable deck lifting device according to the present invention includes a plurality of movable decks continuously arranged on the same plane and installed to be movable in the vertical direction, a plurality of movable decks are installed for each movable deck to suspend the movable deck and move the movable deck up and down. A lifting wire extending along the movable deck and extending along the movable deck and linearly moving along a first direction, which is a longitudinal direction, and at least one linearly moving the driving wire along the first direction. A wire driver, a movable body installed on each movable deck and movable along the first direction and connected to the lifting wire, and a movable body installed on the movable body and pressing the drive wire from both sides with the drive wire at the center to move the drive wire. A pair of wedge blocks fixed to the body, a pair of inclined guides formed on the moving body and accommodating the wedge blocks, and moving the wedge blocks along the first direction to connect the wedge blocks and the driving wire It includes a moving unit including a fastening unit for coupling or releasing, and a plurality of sheaves for guiding the lifting wire to the moving body by changing a direction in parallel with the driving wire.

The wedge block may be in contact with the inclined guide by forming a recessed groove along the first direction on an inner surface through which the driving wire passes and contacting each other and forming an inclined surface on an outer surface.

The wedge block may further include a friction layer formed of a material having a higher hardness than the drive wire on an inner surface of the recessed groove in contact with the drive wire.

The friction layer may be formed of a powder material using a thermal spray coating method.

The fastening unit includes a fastening driving unit that moves in a straight line and transmits a driving force, and a connecting link connecting the fastening driving unit and the wedge block, so that the wedge block is fitted to the inclined guide or separated from the inclined guide. can

The fastening drive unit includes a drive motor generating driving force, a screw bar connected to the drive motor, a nut block that is helically coupled to the screw bar and moves linearly along the screw bar when the screw bar rotates, and the nut block and the connecting link. It may include an elastic member interposed therebetween to transmit elastic force to the wedge block.

The connection link is connected to the nut block so that play occurs in the longitudinal direction of the screw bar, and the elastic member may transmit elastic force in a direction in which the wedge block is fitted to the inclined guide.

The connecting link has both ends connected to the wedge block and the nut block, respectively, and an intermediate portion between the wedge block and the nut block coupled to the movable body as a rotational axis, so that both ends can rotate around the rotational axis there is.

It may further include a fastening groove formed by indenting or protruding one surface of the wedge block, and a fastening block connected to the connecting link and inserted into the fastening groove to transmit a driving force to the wedge block.

The fastening groove overlaps the drive wire and is formed while sharing a pair of the wedge blocks, and further includes a separation slope having an opposite slope to the slope direction of the slope guide in a direction in which the wedge block is separated from the slope guide. can include

The fastening block is inserted to have a gap inside the fastening groove, and a surface in a direction in which the wedge block is fitted to the inclined guide forms a vertical surface with the driving wire, and the wedge block is separated from the inclined guide. A surface in the direction of separation may form an inclined surface corresponding to the separation inclined surface.

The fastening unit is formed for each pair of the wedge blocks and can drive the wedge blocks independently.

Guide rails installed on both sides of the drive wire in parallel with the drive wire to guide the movement of the movable body, and fixation formed on the movable body and protruding toward the guide rail to fix the movable body to the guide rail It may contain more units.

According to the present invention, the deck can be fixed at a desired height and multi-stage installation is possible, so that the loading space can be efficiently used by adjusting the height of the deck and the number of stages according to the height of the vehicle or cargo.

In particular, since several decks can be driven simultaneously with one or two driving devices, there is an advantage in that the height of the deck can be adjusted very quickly at a low cost. In addition, it is possible to reduce the number of driving devices for driving the deck, it is possible to simplify the configuration of the device, which is advantageous for maintenance, and it is possible to reduce the weight of the entire facility, thereby reducing the overall cost.

Since a separate protruding structure in which the deck is fixed to the drive wire is not required, the deck can be fixed to any position of the drive wire, and the height of the deck can be freely adjusted.

1 is a view showing a state in which a movable deck lift device according to an embodiment of the present invention is installed in a ship.
Figure 2 is a perspective view of the movable deck lift device of Figure 1;
Figure 3 is a bottom perspective view showing the internal structure of the mobile unit.
4 is an exploded perspective view of the internal structure of the mobile unit.
5 is an operation view showing the internal structure and operation of the fastening unit.
6 is an operation diagram of a fixing unit;
7 to 10 are operational views of the movable deck lift device.
11 is a bottom view of a movable deck lift device according to another embodiment of the present invention.
12 is an exploded perspective view of a movable deck lift device according to another embodiment of the present invention.
13 is an operation diagram showing the operation of the movable deck lift device according to another embodiment of the present invention of FIG. 12;

Advantages and features of the present invention and methods for achieving them will become clear with reference to the detailed description of the following embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms, but only the present embodiments make the disclosure of the present invention complete and the common knowledge in the art to which the present invention belongs. It is provided to fully inform the possessor of the scope of the invention, and the invention is defined only by the claims. Like reference numerals designate like elements throughout the specification.

Hereinafter, a movable deck lift device according to the present invention will be described in detail with reference to FIGS. 1 to 13.

1 is a view showing a movable deck lift device according to an embodiment of the present invention installed on a ship, FIG. 2 is a perspective view of the movable deck lift device of FIG. 1, and FIG. 3 shows the internal structure of a mobile unit It is a bottom perspective view, and FIG. 4 is an exploded perspective view of the mobile unit.

1 and 2, the movable deck lift device 1 according to the present invention includes a plurality of movable decks 10 continuously arranged on the same plane and movably installed in the vertical direction, and a movable deck ( A plurality of 10) are installed to suspend the movable deck 10, move the movable deck 10 in the vertical direction, and extend along the lifting wire 20 extending to the upper part of the movable deck 10 and the movable deck 10, A driving wire 30 linearly moving along the first direction, which is the longitudinal direction, and at least one wire driving unit 40 linearly moving the driving wire 30 along the first direction, installed for each movable deck 10, A movable body 110 movable along the first direction and connected to the lifting wire 20, and installed on the movable body 110, the drive wire 30 is moved by pressing the drive wire 30 from both sides with the drive wire 30 in the center. A pair of wedge blocks 120 fixed to the body 110, a pair of inclined guides 130 formed on the moving body 110 and accommodating the wedge blocks 120, and wedge blocks 120 A moving unit 100 including a fastening unit 200 for coupling or disengaging the wedge block 120 and the driving wire 30 by moving in one direction, and the lifting wire 20 parallel to the driving wire 30 It includes a plurality of sheaves 50 that guide the movable body 110 by changing the direction.

The movable deck lift device 1 according to the present invention is a device for dividing a loading space into several floors, and can be installed in various spaces such as ships carrying cargo or warehouses or factories storing various cargoes.

In the present specification, installation in a roll-on roll-off vessel for transporting vehicles will be described as an example.

The movable deck lift device 1 can divide the loading space by elevating and lowering the movable deck 10 according to the height of the loaded vehicle. That is, the movable deck lift device 1 can adjust the height of the movable deck 10 so that the vehicles loaded on the ship A can be divided into several floors and loaded.

The movable deck 10 has a wide plate shape and forms a bottom surface for loading vehicles. A plurality of movable decks 10 may be arranged on the same plane to form one layer, and are installed inside the ship to form a bottom surface supporting the vehicle.

The movable deck 10 may be formed in a size sufficient to support a plurality of vehicles, and may be fixed to the ship A after being raised and lowered to adjust the height. The movable deck 10 has a structure in which a plurality of pieces are disposed on the same plane, and it is possible to move up and down independently of each other. A plurality of these movable decks 10 may constitute one large-area deck, and some may rise or fall to form other layers to form a plurality of layers.

In addition, the movable deck 10 can be configured to overlap each other, so that several can be arranged in a vertical space. Therefore, the movable deck 10 can divide the loading space inside the ship A into several floors by adjusting the elevating position.

The movable deck 10 is driven by lifting wires 20 installed at each corner. The lifting wire 20 supports the movable deck 10 and lifts the movable deck 10 with a driving force transmitted from the wire driving unit 40 . The lifting wires 20 may be formed of metal wires, chains, ropes, etc., and a plurality of them are installed at each corner of the movable deck 10 to maintain balance and support. The lifting wire 20 extends in a vertical direction from the movable deck 10, and the direction is changed through the sheave 50 to be connected to the moving unit 100, respectively. Therefore, each lifting wire 20 interlocks and moves according to the movement of the moving unit 100 .

When the plurality of lifting wires 20 extend from the corners of the movable deck 10 and change directions through the plurality of sheaves 50, they are all arranged in the same direction and coupled to the moving unit 100. That is, the lifting wires 20 are coupled to the moving body 110 of the moving unit 100 in parallel and operated simultaneously.

The plurality of sheaves 50 function to guide the lifting wire 20 extending vertically from the movable deck 10 to the moving body 110 by changing the direction in parallel with the driving wire 30. The sheave 50 may be formed in a circular roller shape to change the direction of the lifting wire 20, and may also rotate along with the movement of the lifting wire 20.

On the other hand, the moving unit 100 serves to transmit the driving force of the driving wire 30 to the plurality of lifting wires 20, slides along the guide rail 60 and is selectively coupled to the driving wire 30. . The structure of the mobile unit 100 will be described later in detail.

The drive wire 30 functions to transmit a driving force for elevating and lowering the movable deck 10 . The driving wire 30 may transmit the driving force generated by the wire driving unit 40 to the movable deck 10 through the moving unit 100 . The driving wire 30 linearly moves in both directions, and a direction in which the driving wire 30 linearly moves is referred to as a first direction. In the specification, 'first direction' refers to the direction in which the drive wire 30 moves, but refers to the direction of movement of the moving unit 100 that moves in the same direction as the direction in which the drive wire 30 moves. may be In addition, the 'first direction' may refer to the length direction of the drive wire 30 or the length direction of the guide rail 60 .

The driving wire 30 serves to transmit the driving force transmitted from the wire driving unit 40 to the plurality of movable decks 10. Thus, the drive wire 30 extends along the plurality of movable decks (10). That is, the drive wire 30 may connect the movable decks 10 continuously arranged in the first direction, and the direction is changed by a separate sheave (not shown) so that the movable deck 10 connected in the other direction can also connect Here, the term 'first direction' does not mean an absolute direction, but rather means a direction in which the drive wire 30 extends, so that a longitudinal direction converted and extended by the sheave can also be viewed as the first direction.

The moving unit 100 is installed for each movable deck 10 and may be selectively coupled to the drive wire 30 . Therefore, all of the movable decks 10 through which the drive wire 30 passes may be simultaneously lifted, and only some of them may be selectively lifted. The coupling method of the drive wire 30 and the moving unit 100 allows each movable deck 10 to be independently lifted.

On the other hand, the drive wire 30 has been described as an example of a rope-shaped structure capable of transmitting only pulling force for convenience of explanation, but is not limited thereto, and includes a rod-shaped structure capable of transmitting not only pulling force but also pushing force. is a term that The driving wire 30 may be any structure capable of transmitting force in a straight line direction, and may be used according to the shape of the wire driving unit 40 .

On the other hand, the wire driving unit 40 functions to provide driving force for linearly moving the driving wire 30, and includes various actuators such as a cylinder-type actuator capable of linear driving or a winch-type actuator that transmits power by winding a line. can do. That is, the wire driving unit 40 is coupled to one end of the driving wire 30, and any structure is possible as long as the driving wire 30 can be moved linearly by pushing or pulling.

Hereinafter, the mobile unit 100 will be described in detail with reference to FIGS. 3 and 4 . The moving unit 100 serves to transmit the driving force of the driving wire 30 to the lifting wire 20, and includes a moving body 110, a wedge block 120, an inclined guide 130, and a fastening unit 200 includes

The movable body 110 accommodates the components of the movable unit 100 and functions as a housing for sliding and moving the components along the guide rail 60 . Both ends of the movable body 110 may be engaged with the guide rail 60 to perform a sliding movement along the first direction. At this time, the plurality of lifting wires 20 are fixed to the moving body 110 in the first direction. Accordingly, as the moving body 110 moves in the first direction, the lifting wire 20 may also move horizontally in the first direction. In addition, the movable body 110 accommodates the wedge block 120, the inclined guide 130, and the fastening unit 200 therein, and the driving wire 30 may pass through the center.

The movable body 110 is not necessarily limited to a box-shaped housing structure accommodating components therein, and may be formed in a block shape in which other components are installed. In addition, the movable body 110 may be formed in various shapes, such as a pair of plates spaced apart in a vertical direction and accommodating the configuration of the movable unit 100 in a space between the spaced apart.

The wedge block 120 is installed on the movable body 110 and functions to fix the driving wire 30 penetrating the movable body 110 to the movable body 110 . A pair of wedge blocks 120 are located on both sides of the drive wire 30 as the center, and can press and fix the drive wire 30 from both sides. The wedge block 120 has a wedge-shaped block shape, the surfaces facing each other are formed horizontally and the outer surface is formed inclined. On the surface of the wedge block 120 facing each other, an indented groove 121 through which the drive wire 30 can pass is formed, and a guide inclined surface 122 formed inclined is formed on the outer surface.

The wedge block 120 may be formed in a wedge shape and gradually narrow in width along the drive wire 30 . The outer surface of the wedge block 120 is formed to be inclined, and is guided by the inclined guide 130. The inclined guides 130 are formed in a rod shape, and a pair are arranged symmetrically with each other so that the width of the wedge block 120 gradually narrows toward the narrowing direction. The wedge block 120 is fitted between the inclined guides 130, and press-fits the drive wire 30 interposed therebetween. When the wedge block 120 separates from the inclined guide 130, the driving wire 30 is also separated from the moving unit 100.

The wedge block 120 is formed with a recessed groove 121 in the center facing each other. The indented groove 121 is formed as a semicircular groove to maximize a contact area with the driving wire 30 . A friction layer 123 is formed on the inner surface of the indented groove 121 . The friction layer 123 prevents the driving wire 30 from slipping between the wedge blocks 120 when the wedge block 120 compresses the driving wire 30 . However, the shape of the indented groove 121 is not limited to a semicircular groove, and the cross-sectional shape may form an angular shape, a spiral groove may be formed to maximize frictional force, or an irregular protruding structure may form an atypical shape. There will be. The shape of the indented groove 121 may be variously designed in consideration of the frictional force between the drive wire 30 and the inner surface.

The friction layer 123 is a layer in which protrusions are formed with small particles, and can increase frictional force with the drive wire 30 . In particular, the friction layer 123 may be formed by a thermal spay coating method. Thermal spray coating is one of the surface modification technologies that improve performance without damaging or deforming the base material. In this thermal spray coating, a thermal spray material in the form of powder or wire is injected into a thermal spraying device that generates a high-temperature heat source such as flame or plasma, changed to a molten or semi-melted state, and then collided with and laminated on the surface of the base material at high speed. It means a technique of forming a coating layer. That is, the friction layer 123 is a film layer formed by melting material powder with a high-temperature heat source and laminating it at high speed in the indented groove 121 of the wedge block 120. The wedge block 120 may be firmly fixed to the driving wire 30 by forming a protrusion on the contact surface between the friction layer 123 and the driving wire 30 . The friction layer 123 may be made of a material having a higher hardness than the drive wire 30, and may be formed by thermal spray coating of metal powder made of a material such as carbon tool steel, stainless steel, nickel chrome steel, or tungsten, for example. . In addition, the friction layer 123 may increase the frictional force through surface treatment in addition to the method of increasing the frictional force by attaching other materials. For example, the entire wedge block 12 may be formed of a material having a higher hardness than the drive wire 30 and the surface may be roughened to form a friction layer, and the surface of the indented groove 121 may be roughened. It may be possible to form a friction layer by increasing the surface hardness through heat treatment or the like.

Meanwhile, the wedge block 120 is fitted into or separated from the inclined guide 130 by the fastening unit 200 . The fastening unit 200 drives the wedge block 120 by applying a driving force to the fastening groove 124 formed in the wedge block 120 .

Referring to Figure 5 will be described in detail with respect to the structure of the wedge block and the fastening unit. 5 is an operation view showing the internal structure and operation of the fastening unit. Figure 5 (a) shows a state of fixing the wedge block to the inclined guide through the fastening unit, Figure 5 (b) shows a state of separating the wedge block from the inclined guide through the fastening unit.

The fastening unit 200 moves the wedge block 120 along the first direction and functions to engage or release the wedge block 120 from the driving wire 30 while fitting or separating the inclined guide 130.

The fastening unit 200 operates the wedge block 120 by moving the fastening block 300 that is inserted into the fastening groove 124 formed in the wedge block 120 and transmits power. The fastening groove 124 is a groove formed in the wedge block 120, and is formed in an angular indentation on one surface exposed to the outside of the wedge block 120, and may be positioned to overlap with the driving wire 30.

The wedge block 120 is formed while sharing the fastening groove 124, and the fastening groove 124 formed in each wedge block 120 may communicate with each other. That is, when the pair of wedge blocks 120 are in contact, the pair of recessed grooves 121 communicate to form one groove, and when the pair of wedge blocks 120 are spaced apart, the pair of recessed grooves (121) may also be spaced together. The fastening groove 124 is formed in a direction perpendicular to the first direction in which the wedge block 120 is coupled to the inclined guide 130. In addition, the fastening groove 124 includes a separation inclined surface 124a having an opposite inclination to the inclined guide 130 in a direction separating the wedge block 120 from the inclined guide 130 . The separation inclined surface 124a may be inclined toward a direction in which the pair of wedge blocks 120 are separated from each other in order to easily separate the pair of wedge blocks 120 from the inclined guide 130 .

The fastening block 300 has a vertical surface 300a formed perpendicular to the direction of fixing the wedge block 120, and an inclined surface 300b formed with the same inclination as the separating inclined surface 124a in the direction of separating the wedge block 120 ) is formed. The vertical surface 300a allows the wedge block 120 to be more strongly fixed to the inclined guide 130, and the separating inclined surface 124a allows the wedge block 120 to easily separate from the inclined guide 130.

The fastening driving unit 210 is located around the wedge block 120 and functions to provide a driving force for reciprocating the wedge block 120. The fastening drive unit 210 is connected to the wedge block 120 and the connecting link 220, and the driving force generated by the fastening drive unit 210 may be transmitted to the wedge block 120 through the connecting link 220. The fastening drive unit 210 includes a drive motor 211 generating a driving force, a screw bar 212 connected to the drive motor 211 and rotating according to the rotation of the drive motor 211, and a screw bar ( A nut block 213 that is spirally coupled to the screw bar 212 and moves linearly along the length direction when the screw bar 212 rotates, and an elastic member 214 that is coupled to the nut block 213 and provides elastic force to the wedge block 120 ).

The screw bar 212 has an axial shape with threads formed on an outer circumferential surface and is horizontally disposed parallel to the first direction. The screw bar 212 rotates in place by the driving motor 211 and functions to transmit rotational force to the nut block 213. The nut block 213 is screwed to the screw bar 212, and when the screw bar 212 rotates, it can reciprocate in the first direction along the outer circumferential surface. The nut block 213 may be formed in a cylindrical shape with threads formed on an inner circumferential surface, and transmits a driving force to the connecting link 220 through an elastic member 214. The elastic member 214 is interposed between the nut block 213 and the connecting link 220, and continuously transmits an elastic force to the connecting link 220 even when the nut block 213 does not transmit a driving force.

One section of the nut block 213 may be recessed, and the elastic member 214 and the connecting link 220 are inserted into the recessed groove of the nut block 213.

First, referring to (a) of FIG. 5, when the drive motor 211 rotates and the screw bar 212 rotates, the nut block 213 advances toward the wedge block 120. At this time, the elastic member 214 is compressed while the elastic force is transmitted to the fastening block 300 through the connecting link 220.

In the fastening block 300, the vertical surface 300a pushes the fastening groove 124 forward, and the wedge block 120 presses and fixes the drive wire 30 while entering between the inclined guides 130. The elastic member 214 continuously provides elastic force so that the fastening block 300 presses the fastening groove 124 even when the driving motor 211 stops driving. In this case, the moving unit 100 is coupled to the driving wire 30 and moves together.

Subsequently, referring to (b) of FIG. 5, when the drive motor 211 rotates and the screw bar 212 rotates in the opposite direction, the nut block 213 moves backward in the opposite direction of the wedge block 120. The nut block 213 directly presses the connecting link 220 to move the fastening block 300 backward. At this time, as the inclined surface 300b of the fastening block 300 presses the separation inclined surface 124a, the wedge block 120 spreads outwards simultaneously with the backward movement. In this case, while the driving wire 30 is separated between the wedge blocks 120, the moving unit 100 and the driving wire 30 are separated from each other and move.

The inclined surface 300b is formed with the same slope as the separating inclined surface 124a and has an opposite slope to that of the guide inclined surface 122, so that force can be effectively transmitted to the separating inclined surface 124a.

Referring to FIG. 6 , the fixing unit 400 is located inside the movable body 110 and protrudes from both sides of the movable body 110 to function as a stopper to fix the position of the movable body 110 . A pair of fixing units 400 may be located on the same line on both sides of the movable body 110 and protrude to the outside, respectively. At this time, the fixing unit 400 may be inserted into the fixture 61 of the guide rail 60 and fixed to one section of the guide rail 60 of the movable body 110 . The fixing unit 400 can be transformed into any other driving method and shape as long as it has a structure capable of fixing the movable body 110 to one section of the guide rail 60.

7 to 10 are operational views of the movable deck lift device.

In Figures 7 to 10 (a) is a diagram showing the movement of the drive wire and the moving unit, (b) is a diagram showing the movement of the drive deck according to the operation of the drive wire and the moving unit.

The first movable unit 100a and the second movable unit 100b are installed on the drive wire 30 to independently raise and lower the first movable deck 10a and the second movable deck 10b. In order to represent the motions of the first moving unit 100a and the second moving unit 100b, arbitrary points where the driving wire 30 passes are indicated as P1, P2, P3, and P4, and the The other two points are labeled R1 and R2.

The first movable unit 100a and the second movable unit 100b, and the first movable deck 10a and the second movable deck 10b are referred to separately for convenience of explanation, and each configuration has been previously described. It is the same as the moving unit 100 and the movable deck 10.

First, referring to FIG. 7( a ), the first moving unit 100a is fixed to the driving wire 30, and the second moving unit 100b is separated from the driving wire 30.

Referring to (b) of FIG. 7, while the first moving unit 100a moves together with the drive wire 30, the first movable deck 10a rises upward, and the second movable deck 10b returns to its original position. is fixed on

Referring to FIG. 8 , both the first moving unit 100a and the second moving unit 100b are separated from the driving wire 30 . Even if the drive wire 30 moves to the right, the first moving unit 100a and the second moving unit 100b remain in place, and the first movable deck 10a and the second movable deck 10b also remain in place. remain stationary.

Referring to FIG. 9 , the first moving unit 100a is continuously separated from the driving wire 30, and the second moving unit 100b is fixed to the driving wire 30 and moves together.

The first movable deck 10a is maintained in a raised state, and the second movable deck 10b is raised. In this way, the first movable deck 10a and the second movable deck 10b can be operated independently.

Referring to FIG. 10, both the first moving unit 100a and the second moving unit 100b are fixed to the drive wire 30 and move to the right at the same time, and the first movable deck 10a and the second movable deck ( 10b) All can descend simultaneously.

11 is a bottom view of a movable deck lift device according to another embodiment of the present invention.

The movable deck lift device according to another embodiment of the present invention is substantially the same as the previous embodiment except that the fastening unit 200-1 is connected to a pair of wedge blocks 120 to drive the wedge blocks 120 Do. In addition, the structure of the fastening unit 200-1 is the same as that previously described, except that the connecting link 220-1 of the fastening unit 200-1 is directly connected to the wedge block 120. .

The fastening unit 200-1 may simultaneously move both wedge blocks 120 forward or backward to couple or separate the drive wire 30 with the wedge block 120. As described in the previous embodiment, when the fastening unit 200 presses the wedge block 120, the elastic force acts to continuously press the wedge block 120.

12 is an exploded perspective view of a movable deck lifting device according to another embodiment of the present invention.

Referring to FIG. 12, the fastening unit 200-2 according to another embodiment of the present invention linearly moves the fastening block 300 using the connecting link 220 ^' rotating around the pivot shaft 223. can make it As described above, the fastening unit 200-2 includes a fastening driving unit 210 ^' and a connecting link 220 ^' . The fastening driving unit 210 ^' is connected to the wedge block 120 and the connecting link 220 ^' , and the driving force generated in the fastening driving unit 210 can be transmitted to the wedge block 120 through the connecting link 220 ^' . . The fastening drive unit 210 ^' is connected to a drive motor 211 ^' generating a driving force and a drive motor 211 ^' and rotates according to the rotation of the drive motor 211 ^' , a shaft-shaped screw bar 212 ^' And, when the screw bar 212 ^' is spirally coupled to the screw bar 212 ^' , the nut block 213 ^' , which moves linearly along the length direction when the screw bar 212 'rotates, and the wedge block 120 coupled to the nut block 213 ^' It includes an elastic member (214 ^' ) that provides elastic force to.

The screw bar 212 ^' has an axial shape having a screw thread formed on an outer circumferential surface thereof, and is disposed horizontally in parallel with the first direction. The screw bar 212 ^' rotates in place by the driving motor 211 ^' and transmits rotational force to the nut block 213 ^' . The nut block 213 ^' is screwed to the screw bar 212 ^' , and may reciprocate in the first direction along the outer circumferential surface of the screw bar 212 ^' . At this time, the nut block 213 ^' may have a dumbbell-like shape in which both ends of a circular axis extending in the first direction are extended. Therefore, the nut block 213 ^' reciprocates according to the rotation of the screw bar 212 ^' , but a separate connecting member 222 may be coupled to the outer circumferential surface of the circular axis of the nut block 213 ^' . The connection member 222 is coupled to be slidably movable on the outer circumferential surface of the circular shaft of the nut block 213 ^' , and can move along the movement direction of the nut block 213 ^' . In addition, the connecting member 222 may be coupled to the nut block 213 ^' so that play occurs between both ends of the nut block 213 ^' . At this time, a spring-shaped elastic member 214 ^' is interposed in the spaced section between the connection member 222 and both ends of the nut block 213 ^' , and the force of the nut block 213 ^' is applied to the elastic member 214 ^' . It can be transmitted to the connecting member 222 through. However, the elastic member 214 ^' may be located only on the side where the fastening driving unit 210 ^' presses the wedge block 120 to be fitted and coupled to the inclined guide 130. Therefore, when the wedge block 120 is fitted to the inclined guide 130, the elastic member 214 ^' can be formed such that force is continuously applied through the elastic force.

The connection link 220 ^' has a function of transmitting the driving force of the fastening drive unit 210 ^' to the wedge block 120. The connecting link 220 ^' is coupled to the circular axis section of the nut block 213 ^' and the connecting member 222 sliding along the outer circumferential surface of the circular shaft, the wedge block 120 and the nut block 213 ^' between the middle It includes a pivoting shaft 223 that is fixed in the part. At this time, an elastic member 214 ^' is interposed between the extended ends of the nut block 213 ^' and the connecting member 222 of the connecting link 220 ^' , connecting the driving force of the fastening drive unit 210 ^' through elastic force. It can be delivered to the link 220 ^' . The link member 221 is configured to connect the wedge block 120 and the nut block 213 ^' , and both ends can be rotated around the pivot shaft 223 located in the middle. When the wedge block 120 is moved in one direction, one end of the link member 221 is pressed and the other end is moved in the opposite direction. That is, the wedge block 120 may move in a direction opposite to the moving direction of the nut block 213 ^' . In particular, one end of the connection link 220 ^' is connected to the fastening block 300 inserted into the wedge block 120, and may press the wedge block 120 through the fastening block 300.

The fastening block 300 is inserted into the fastening groove 124 described above and serves to transmit the driving force of the fastening driving unit 210 ^' to the wedge block 120. The fastening block 300 has a vertical surface 300a formed vertically in the direction of fixing the wedge block 120, and an inclined surface 300b formed with the same inclination as the separating inclined surface 124a in the direction of separating the wedge block 120 ) is formed. Therefore, when the separated inclined surface 124a of the fastening groove 124 is pressed by the spaced inclined surface 300b of the fastening block 300, the separated inclined surface 124a is in contact with the inclined surface 300b and the fastening groove 124 is mutually can be separated The inclined surface 300b may be formed with a slope opposite to that of the guide inclined surface 122 in the same way as the separating inclined surface 124a.

The fastening unit 200-2 may horizontally move the nut block 213 ^' screwed to the outer circumferential surface of the screw bar 212 ^' by rotating the screw bar 212 ^' using the drive motor 211 ^' . . The nut block 213 ^' may have a dumbbell-like shape in which both ends of a circular axis extending in the first direction are extended. An elastic member 214 ^' and a connecting link 220 ^' are inserted into the recessed groove of the nut block 213 ^' . The connecting link 220 ^' serves to connect the fastening block 300 and the nut block 213 ^' . The connecting link 220 ^' has one end coupled to the fastening block 300 and the other end coupled to the outer circumferential surface of the nut block 213 ^' , and may have a curved shape in one section.

A separate connecting member 222 may be coupled to the outer circumferential surface of the circular shaft of the nut block 213 ^' . The connection member 222 is coupled to be slidably movable on the outer circumferential surface of the circular shaft of the nut block 213 ^' , and can move along the movement direction of the nut block 213 ^' . In addition, the connecting member 222 may be coupled to the nut block 213 ^' so that play occurs between both ends of the nut block 213 ^' . At this time, a spring-shaped elastic member 214 ^' is interposed in the spaced section between the connection member 222 and both ends of the nut block 213 ^' , and the force of the nut block 213 ^' is applied to the elastic member 214 ^' . It can be transmitted to the connecting member 222 through. However, the elastic member 214 ^' may be located only on the side where the fastening driving unit 210 ^' presses the wedge block 120 to be fitted and coupled to the inclined guide 130. Therefore, when the wedge block 120 is fitted to the inclined guide 130, the elastic member 214 ^' can be formed such that force is continuously applied through the elastic force.

13 is an operation diagram showing the operation of the movable deck lift device according to another embodiment of the present invention of FIG. 12; Figure 13 (a) is a view showing a state in which the fastening unit fixes the wedge block to the inclined guide, Figure 13 (b) is a view showing a state in which the fastening unit separates the wedge block from the inclined guide.

Referring to FIG. 13 , the fastening unit 200-2 may fix or separate the wedge block 120 from the inclined guide 130 by reciprocating the fastening driving unit 210 ^' in the first direction.

First, referring to FIG. 13 (a), the fastening drive unit 210 ^' presses the wedge block 120 to the left with respect to FIG. 13 (a) along the first direction to drive the wedge block 120 The wire 30 can be fixed. At this time, the nut block 213 ^' of the fastening drive unit 210 ^' can move to the right according to the rotation of the screw bar 212 ^' and pull the connecting member 222. That is, as the nut block 213 ^' presses the connecting member 222 to the right, the fastening block 300 rotates to the left around the rotation axis 223 of the connecting link 220 ^' , and the wedge block 120 ) can be pressurized. In particular, an elastic member 214 ^' is inserted between the nut block 213 ^' and the connecting member 222 on the left side of the connecting member 222, and pressurizes the wedge block 120 in the direction of fixing it using elastic force. there is. Therefore, when fixing the wedge block 120 to the fastening block 300, force can be continuously applied using the elastic force.

Referring to (b) of FIG. 13 , the fastening driving unit 210 ^' may press the wedge block 120 to the right to separate the wedge block 120 and the drive wire 30. At this time, the nut block 213 ^' of the fastening drive unit 210 ^' moves to the left according to the rotation of the screw bar 212 ^' and can pull the connecting member 222 to the left. That is, as the nut block 213 ^' presses the connecting member 222 to the left, the fastening block 300 rotates to the right around the rotation axis 223 of the connecting link 220 ^' , and the wedge block 120 ) can be pressurized. In particular, by pressing the connecting member 222 to the end of the nut block 213 ^' , the wedge block 120 is separated from the drive wire 30 and no longer presses the force. In addition, the fastening block 300 may press the wedge block 120 in a diagonal direction by pressing the inclined surface 124a of the fastening groove 124 with the inclined surface 300b. That is, the fastening block 300 can be easily separated along the inclined guide 130 in the direction of separating the wedge blocks 120 from each other.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art can realize that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. you will be able to understand Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

1: movable deck lifting device 10: movable deck
10a: first movable deck 10b: second movable deck
20: lifting wire 30: drive wire
40: wire driving unit 50: sheave
60: guide rail 61: fixture
100: mobile unit 100a: first mobile unit
100b: second moving unit 110: moving body
120: wedge block 121: indentation hop
122: guide slope 123: friction layer
124: fastening groove 124a: separation slope
130: inclined guide 200, 200-1, 200-2: fastening unit
210, 210 ^' : fastening driving unit 211, 211 ^' : drive motor
212, 212 ^' : screw bar 213, 213 ^' : nut block
214, 214 ^' : elastic member 220, 220 ^' : connection link
221: link member 222: connection member
223: rotation axis 300: fastening block
300a: vertical plane 300b: inclined plane
400: fixed unit A: ship

Claims (13)

A plurality of movable decks continuously arranged on the same plane and movably installed in the vertical direction;
A plurality of wires installed on each movable deck to suspend the movable deck, move the movable deck in a vertical direction, and extend upward to the movable deck;
A drive wire extending along the movable deck and linearly moving along a first direction, which is a longitudinal direction;
at least one wire driver for linearly moving the driving wire along the first direction;
A movable body installed on each movable deck, movable along the first direction, and connected to the lifting wire, installed on the movable body, and pressing the drive wire from both sides with the drive wire at the center to fix the drive wire to the movable body. A pair of wedge blocks, a pair of inclined guides formed on the moving body and accommodating the wedge blocks, and moving the wedge blocks along the first direction to couple or release the wedge blocks and the driving wire A mobile unit including a fastening unit for doing; and
And a plurality of sheaves for guiding the lifting wire to the moving body by changing the direction in parallel with the driving wire,
The fastening unit,
A fastening driving unit that moves in a straight line and transmits a driving force, and a connecting link connecting the fastening driving unit and the wedge block, to insert the wedge block into the inclined guide or to separate it from the inclined guide,
A fastening groove formed by indenting one side of the wedge block;
Further comprising a fastening block connected to the connecting link and inserted into the fastening groove to transmit a driving force to the wedge block,
The fastening groove overlaps the drive wire and is formed while sharing a pair of the wedge blocks, and further includes a separation slope having an inclination opposite to the inclination direction of the inclined guide in a direction in which the wedge block is separated from the inclined guide. include,
The fastening block is inserted so as to have a gap inside the fastening groove, and a surface in a direction in which the wedge block is fitted to the inclined guide forms a vertical surface with the driving wire, and the wedge block is separated from the inclined guide. A movable deck lifting device in which a surface in the direction of separation forms an inclined surface corresponding to the separating inclined surface. According to claim 1,
The wedge block,
A movable deck lifting device in which the driving wire passes and a recessed groove is formed along the first direction on the inner surface contacting each other and an inclined surface is formed on the outer surface to contact the inclined guide. According to claim 2,
The wedge block,
Movable deck lifting device further comprising a friction layer formed of a material having a higher hardness than the drive wire on the inner surface of the indented groove in contact with the drive wire. According to claim 3,
The friction layer is a movable deck lifting device in which a powder material is formed by a thermal spray coating method. delete According to claim 1,
The fastening drive unit,
A driving motor generating a driving force, a screw bar connected to the driving motor, a nut block that is helically coupled to the screw bar and moves linearly along the screw bar when the screw bar rotates, and is interposed between the nut block and the connecting link. Movable deck lifting device including an elastic member that transmits elastic force to the wedge block. According to claim 6,
The connection link is connected to the nut block so that play occurs in the longitudinal direction of the screw bar,
The elastic member is a movable deck lifting device for transmitting an elastic force in a direction in which the wedge block is fitted to the inclined guide. According to claim 6,
The connecting link is
Both ends are connected to the wedge block and the nut block, respectively, and an intermediate portion between the wedge block and the nut block is coupled to the movable body as a rotation axis, and both ends rotate about the rotation axis. Movable deck lifting device. delete delete delete According to claim 1,
The fastening unit,
A movable deck lifting device that is formed for each pair of the wedge blocks and independently drives the wedge blocks. According to claim 1,
Guide rails installed on both sides of the drive wire in parallel with the drive wire to guide the movement of the moving body;
A movable deck lifting device further comprising a fixing unit formed on the movable body and protruding toward the guide rail to fix the movable body to the guide rail.

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