KR20100020053A - Double deck elevator - Google Patents

Abstract

PURPOSE: A double deck elevator is provided to form a driving apparatus using a chain to differentiate the heights of two elevator cars. CONSTITUTION: A double deck elevator has a 2:1 roping structure in which one end of a chain passes through a first and a second pulley of an upper car upper frame(12) while being fixed on one side of an upper support member(34), through a sprocket of a drive unit installed on the other side of the upper support member, and then through a second and a first pulley of a lower car upper frame(22) and the other end of the chain is fixed to one side of the upper support member. The interval between an upper car and a lower car is regulated according to clockwise and counterclockwise rotation of the drive unit.

Description

Double Deck Elevator with Floor Alignment {DOUBLE DECK ELEVATOR}

The present invention relates to a double deck elevator having a floor fitting function, and more particularly, is provided with a chain-aligned floor drive for changing the height between two cars when there is a height difference in each floor. In addition, the present invention relates to a double deck elevator having a floor alignment function equipped with an emergency stop device that can safely stop the car when the drive chain is cut.

      In general, various types of high-rise buildings built for residential or business use are equipped with elevator devices to help passengers move vertically. In recent years, elevators are designed to increase transportation capacity within a single hoistway due to the high rise of buildings. There are also double deck elevator cars, which consist of two floors of upper and lower cars, which can serve two floors of a building simultaneously.

      On the other hand, Figure 1 is a view showing a state of adjusting the distance between a pair of cars by moving only one car in a conventional double deck elevator, Figures 2 and 3 is a direct way between a pair of cars in a conventional double deck elevator Figure 4 is a view showing a state of adjusting the spacing, Figure 4 is a diagram showing a state of adjusting the distance between a pair of cars in an indirect manner in a conventional double deck elevator, Figure 5 is a safety device provided in a conventional double-tech elevator It is a figure which shows.

      That is, the pair of elevator cars provided in the double deck elevator as described above is configured to adjust the distance between the pair of cars through various methods when there is a difference in height for each floor of the building, as shown in FIG. As described above, the upper car 1 of the pair of elevator cars is fixed and only the lower car 2 is moved through the predetermined height adjusting device 3 to adjust the distance between the pair of cars, or As shown in FIGS. 2 to 4, the distance between the pair of elevator cars is adjusted through direct or indirect methods, while the elevator 9 is cut in the indirect manner as shown in FIG. 5. A safety device 8 is provided to prevent the car 1, 2 from falling.

      In the direct method, as shown in Korean Patent Application No. 1998-12958 of FIG. 2, a pantograph 4 and a screw and nut driving unit 5 are configured to operate the upper car 1 and the lower car 2. Or as shown in Korean Patent Application No. 2000-30758 of FIG. 3, the screw and nut drive unit 6 is configured to operate the upper car 1 and the lower car 2 alone.

      In addition, the indirect system is configured to operate the upper car 1 and the lower car 2 by using a speed reducer and a wire rope 7 as shown in international patent application WO 2004/087552 A1 of FIG. 4.

      In adjusting the distance between a pair of elevator cars by the direct method and the indirect method, the upper and lower cars are interconnected as compared to the method of adjusting the distance by moving only one of the upper and lower cars. Since the upper and lower cars are moved in opposite directions, the speed of adjusting the spacing is twice as fast as moving only one car, and the capacity of the driving device is considerably reduced.

       However, in the conventional double deck elevator, in the case of the direct method, since the size of the driving device is large, it takes up a lot of installation space and hangs directly on the upper and lower cars. Therefore, the problem of having to install precisely occurs, and the power source (motor) is separated. This can cause overloads, which can cause shocks when starting or when two power sources are not synchronized.

      In addition, in the case of the indirect method, a large number of ropes must be used as the 1: 1 roping method, and when the diameter of the rope is large, a problem arises in that a large diameter of the pulley is required.

      In addition, in the case of the indirect method, in order to prevent each car from falling in preparation for cutting the rope, a safety device for operating the emergency stop device by detecting the rope being loosened should be provided. There is a complicated problem, and the safety device also has a problem in that only an odd number such as 1: 1 or 3: 1 needs to be performed.

Accordingly, the present invention has been made to solve the above-described problems, the present invention is a drive device that can change the height between the two elevator car when there is a height difference for each floor in the double deck elevator It is a double structure with floor fitting function that is equipped with an emergency stop device to simplify the structure and installation parts, minimize installation space, and prevent the car from falling when cutting the chain. The purpose is to provide a deck elevator.

      Double deck elevator having a floor alignment function according to an embodiment of the present invention for achieving the above object, a pair of side members are installed vertically, both ends are coupled to the upper end of the side member main rope The main frame is composed of an upper member, a lower upper support member, a lower member coupled to both ends of the lower side of the side member, and an intermediate support member horizontally installed at the center of the pair of side members. Is provided; Upper and lower cars, respectively, are installed in a state in which the upper and lower cars are movable up and down along the guide rails with respect to the intermediate support member; A pair of pulleys are respectively installed on the upper body of the upper car and the lower car, and one end of the chain is supported by the first and second pulleys of the upper car upper body of the upper support member while being fixed to one side of the upper support member. A 2: 1 roping structure is applied in which the other end of the chain is fixed to one side of the upper support member via the second pulley and the first pulley of the lower car upper body after passing through the sprocket of the drive unit installed on the other side; According to the forward or reverse rotation of the drive unit is characterized in that the gap between the upper car and the lower car is configured to open or narrow.

      Preferably, the pair of pulleys installed on the upper body of the lower car is installed on both ends of the upper body of the upper car, and formed so as to correspond to the protrusion of the guide member provided along the side member of the main frame, It is characterized in that the chain is configured to be installed along both sides of the guide rail.

      More preferably, the chain can be replaced with a belt or rope.

      In addition, an operating lever of the emergency stop device is installed on one side of the upper car and the lower car, respectively, and both ends of the operating rope passing through the pulley of the upper support member are connected to the operating lever, respectively, and gravity caused by cutting of the main chain. When the upper and lower cars fall by the operating lever is pulled upwards to operate the emergency stop device is characterized in that the emergency stop device is configured to prevent the fall of the upper and lower cars while pressing the rail.

 Double deck elevator having a floor alignment function according to another embodiment of the present invention, a pair of side members are installed vertically, the upper member is coupled to both ends of the upper end of the side member and the main rope is installed, the lower side A main frame including an upper support member, a lower member coupled to both ends at a lower end of the side member, and an intermediate support member horizontally installed at a center portion of the pair of side members; Upper and lower cars, respectively, are installed in a state in which the upper and lower cars are movable up and down along the guide rails with respect to the intermediate support member; A pair of pulleys are installed on the upper body of the upper car and the lower car, and a pair of pulleys are installed on the upper support member and the intermediate support member, respectively, and one end of the chain is fixed to one side of the upper support member. The sprocket of the drive unit installed on the other side of the upper support member after sequentially passing through the first pulley of the lower car upper body and the first pulley of the intermediate support member, the second pulley of the intermediate support member and the second pulley of the lower car upper body Through the second pulley of the upper car upper body and the second pulley of the upper support member and the first pulley of the upper support member and the first pulley of the upper car upper body sequentially through the other end of the chain of the upper support member A 4: 1 roping structure fixed to one side is applied; According to the forward or reverse rotation of the drive unit is characterized in that the gap between the upper car and the lower car is configured to open or narrow.

In addition, the double deck elevator having a floor alignment function according to another embodiment of the present invention, a pair of side members are installed vertically, the upper member is coupled to both ends of the upper end of the side member and the main rope is installed; A main frame including a lower upper support member, a lower member coupled to both ends of a lower end of the side member, and an intermediate support member horizontally installed at a center portion of the pair of side members; Upper and lower cars, respectively, are installed in a state in which the upper and lower cars are movable up and down along the guide rails with respect to the intermediate support member; Four pulleys are respectively installed on the upper body of the upper car and the lower car, and a pair of pulleys are respectively provided on the upper support member and the intermediate support member, and one end of the chain is fixed to one side of the upper support member. The first pulley of the lower car upper body and the first pulley of the intermediate support member and the second pulley of the lower car upper body and the third pulley of the lower car upper body and the second pulley and the lower car upper body of the intermediate support member The fourth pulley of the upper car upper body, the second pulley of the upper car upper body and the third pulley of the upper car upper body and the upper car of the upper car upper body through the sprocket of the drive unit installed on the other side of the upper support member after passing through the fourth pulley sequentially. 6: 1 roping in which the other end of the chain is fixed to one side of the upper support member via the second pulley of the upper body and the first pulley of the upper support member and the first pulley of the upper car upper body in sequence Joe is applied; According to the forward or reverse rotation of the drive unit is characterized in that the gap between the upper car and the lower car is configured to open or narrow.

      According to the present invention made as described above, in implementing the floor alignment function provided in the conventional double-deck elevator, it has the effect of eliminating the problem of having a bulky and complicated structure and precise adjustment, Through this, it is possible to secure a sufficient repair space on the upper side of the elevator car, and also to improve the economics by simplifying the device and parts.

      In addition, since the structure of the emergency stop device for preventing the fall of the elevator car due to the cutting of the chain or rope also has a very simple structure, it is possible to provide convenience such as simplifying parts, installation and maintenance. Will also be.

      Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

      6a and 6b is a front view and a perspective view showing a configuration of a double deck elevator having a floor alignment function according to an embodiment of the present invention, Figures 7a and 7b has a floor alignment function according to an embodiment of the present invention Front and perspective views showing the rope structure of the double deck elevator, Figure 8 is a partial plan cross-sectional view showing the rope structure of the double deck elevator having a floor fitting function according to an embodiment of the present invention, Figure 9 is an embodiment of the present invention 10A and 10B are perspective views illustrating an emergency stop device of the double deck elevator having a floor fitting function according to an embodiment of the present invention. It is a perspective view showing.

First, in a double deck elevator having a floor fitting function according to an embodiment of the present invention, a main frame 30 provided with a pair of elevator cars including an upper car 10 and a lower car 20 is installed in a hoistway. In addition, the upper car 10 and the lower car 20 installed in the mainframe 30 are achieved by opening or narrowing the space between each other through a specific rope structure through the chain 40.

To this end, one end of the main rope 92 wound and moved around the elevator main sheave 90 is coupled to the upper end of the main frame 30, and the balance weight 94 is coupled to the other end of the main rope. The main frame 30 has a pair of side members 32 installed vertically, and an upper member in which the main rope 92 is installed at the center thereof while both ends are coupled to an upper end of the side member 32. 31, an upper support member 34 positioned below the upper member 31, a lower member 36 having both ends coupled to a lower end of the side member 32, and the pair of side members ( It comprises a middle support member 38 is installed horizontally in the center portion of the 32.

In addition, an upper car 10 and a lower car 20 are provided along the inner surface of the pair of side members 32, respectively, on the upper and lower portions of the main support member 38 of the main frame 30. It is installed in the state capable of moving up and down along the respective guide rails 32a, the upper car 10 and the lower car 20 is provided with upper portions of the upper body 12, 22 on its upper side.

In addition, in order to selectively adjust the distance between the upper car 10 and the lower car 20 installed in the main frame 30, the upper body 12 and the lower car 20 of the upper car 10 A pair of pulleys 12a, 12b, 22a, and 22b are respectively installed on the upper body 22 of the upper body 22, and both ends of the chain 40 are fixed to one side of the upper support member 34 of the main frame 30. The other side of the upper support member 34 is provided with a sprocket 52 on one side of the drive unit 50 while the drive unit 50 made of a motor is installed.

Accordingly, the chain 40 having one end fixed to one side of the upper support member 34 passes through the first pulley 12a and the second pulley 12b of the upper car upper body 12 and the upper support member ( 32) After passing through the sprocket 52 of the drive unit 50 installed on the other side, the second pulley 22b and the first pulley 22a of the lower car upper body 22 are sequentially passed, and then again the chain 40 The other end is fixed to one side of the upper support member 34, by connecting the upper car 10 and the lower car 20 in a linkable state in a 2: 1 roping structure, the forward rotation of the drive unit 50 Alternatively, the gap between the upper and lower cars 10 and 20 may be widened or narrowed according to the reverse rotation.

At this time, as shown in Figure 8, the pair of pulleys (22a, 22b) installed in the upper body stand 22 of the lower car 20 is installed on both end sides of the upper body stand 22, respectively, It is formed so as to correspond to the projecting portion of the guide member 32a provided along the side member 32 of the main frame 30, it is installed so that the chain 40 is lowered along both sides of the guide rail 32a In addition, the maintenance space on the upper side of the elevator car is secured to the maximum and is configured to increase space utilization.

In addition, since both ends of the chain 40 are collected at one side of the upper support member 34 of the main frame 30, tension adjustment or maintenance work of the chain 40 can be easily performed, and the chain 40 Since the elongation is less than that of the wire rope or the belt, the level difference generated by the load of the elevator car passenger can be minimized.

In addition, a double deck elevator having a floor fitting function according to the present invention is provided with a safety device for preparing the cutting of the chain 40. For this purpose, the upper car 10 and the lower car 20 are guided in an emergency. An emergency stop device 60 as described above is configured to press the rail 32a so that the car does not fall.

      At this time, in order to operate the emergency stop device 60 of the upper car 10 and the lower car 20 at the time of the fall of the elevator car, the emergency stop on each side of the upper car 10 and the lower car 20, respectively. With the operating lever 62 for operating the device 60 installed, the operating lever 62 is connected to both ends of the operating rope 64 via the pulley 66 of the upper support member 34, respectively. do.

      Accordingly, the operation lever 62 is pulled upward when the upper and lower cars 10 and 20 fall due to gravity due to the cutting of the chain 40 to operate the emergency stop device 60 so as to operate the emergency stop device 60. The pair of pressing portions 68 of the emergency stop device 60 can prevent the fall of the upper and lower cars 10 and 20 while pressing the guide rails 32a at points corresponding thereto from both sides.

      On the other hand, as shown in Figure 11 and 12, the double deck elevator having a floor alignment function according to the present invention may be configured to have a 4: 1 or 6: 1 roping structure.

That is, in order to apply a 4: 1 roping structure, a pair of pulleys 12a, 12b, 22a, and 22b are installed on the upper body of the upper and lower cars, respectively. With the pair of pulleys 34a, 34b, 38a and 38b installed, one end of the chain 40 is fixed to one side of the upper support member and the first pulley 22a and the intermediate support member of the lower car upper body. After passing through the first pulley (38a) and the second pulley (38b) of the intermediate support member and the second pulley (22b) of the lower car upper body in sequence, the sprocket 52 of the drive unit installed on the other side of the upper support member The second pulley 12b of the upper car upper body and the second pulley 12b of the upper support member, the first pulley 12a of the upper support member and the first pulley 12a of the upper car upper body are sequentially Via the other end of the chain 40 is configured to be fixed to one side of the upper support member.

In addition, in order to apply a 6: 1 roping structure, four pulleys 12a, 12b, 12c, 12d, 22a, 22b, 22c, and 22d are respectively installed on the upper body of the upper car and the lower car. Each of the member and the intermediate support member are provided with a pair of pulleys 34a, 34b, 38a, and 38b, respectively, and one end of the chain 40 is fixed to one side of the upper support member. Pulley 22a, the first pulley 38a of the intermediate support member, the second pulley 22b of the lower car upper body, the third pulley 22c of the lower car upper body, and the second pulley 38b of the intermediate support member. And the fourth pulley 12d of the upper car upper body and the upper support member through the sprocket 52 of the driving unit installed on the other side of the upper support member after sequentially passing through the fourth pulley 22d of the lower car upper body. Of the second pulley 34b and the third pulley 12c of the upper car upper body and the second pulley 12b of the upper car upper body and the upper support member. The other end of the chain 40 is sequentially fixed to one side of the upper support member via the first pulley 34a and the first pulley 12a of the upper car upper body.

      In addition, the medium for connecting a pair of elevator cars to which a certain roping structure is applied may be replaced by a wire rope 70 or a belt 80 as shown in FIGS. 13A and 13B in addition to the chain described above. Of course.

      Next, the operation of the present invention configured as described above will be described in detail with reference to the drawings.

      First, the double deck elevator having a floor fitting function according to the present invention, the upper car 10 and the main frame 30 moved up and down along the hoistway in a state connected to one end of the main rope 92 and The lower car 20 is optionally adapted to adjust its spacing.

      The double tech elevator moves the main rope 92 while the main sheave 90 of the hoisting machine rotates under the control of a control means corresponding to a call input button operation of a passenger. As the main frame 30 connected to one end and the balance weight 94 connected to the other end is moved up and down, the main frame 30 is moved to the corresponding point according to the call of the passenger, the main frame 30 according to the present invention As the) moves to the corresponding point, the distance between the upper car 10 and the lower car 20 is adjusted according to the height between the floors on which the upper car 10 and the lower car 20 are located.

      That is, the main frame 30 is moved to a predetermined position and at the same time the driving unit 50 is operated under the control of the control means according to the interlayer height information of the corresponding point, according to the one-way rotation of the driving unit 50 As the drive sprocket 52 is interlocked, the chain 40 passing through the plurality of pulleys is moved to one side to raise the upper car 10, and at the same time, lower the lower car 20 so that the gap between the upper and lower cars is increased. Got to happen.

      In addition, according to the reverse rotation of the drive unit 50 under the control of the control means, while the drive unit sprocket 52 interlocks, the chain 40 via the plurality of pulleys is moved to the other side to lower the upper car 10. Simultaneously, the lower car 20 is raised to narrow the gap between the upper and lower cars.

      Accordingly, the pair of elevator cars installed in the main frame 30 can be adjusted to the distance between each other according to the height information of the floor of the corresponding point, wherein the speed of one car and the relative of the upper and lower cars The speed is doubled so that adjustments can be made quickly to the floor height.

      In addition, by equalizing the weight of the upper car 10 and the lower car 20, it is possible to minimize the power loss due to the weight of the car by driving only the difference in the rated load on each car.

      On the other hand, the double deck elevator having a floor fitting function according to the present invention is provided with a safety device for preventing the fall of the elevator car when cutting the chain or rope, that is, the upper car 10 and the lower car 20 on one side Both ends of the operating rope 64 provided with an operating lever 62 and passing through the pulley 66 fixed to the upper support member 34 of the main frame 30 are connected to the respective operating levers 62. .

      Normally, as the upper car 10 and the lower car 20 move, the operating rope 64 moves up or down naturally, but when the chain or rope is cut, the upper car 10 and the lower car The car 20 is lowered by gravity, and the operating rope 64 is fixed so as not to move in any direction so that the operating lever 62 is pulled upward, the upper car 10 and the lower car 20 The emergency stop device (60) provided in the) will be operated.

      Accordingly, the emergency stop device 60 as described above is controlled so that a pair of pressing portions 68 tightly presses the guide rail 32a to prevent the upper and lower cars 10 and 20 from falling. As a result, the elevator car can be prevented from falling.

      Meanwhile, in another embodiment and another embodiment of the present invention shown in FIGS. 11 and 12, a specific roping structure is sequentially passed through a plurality of pulleys according to forward and reverse rotations of the driving unit under control of the control means. As the chain 40 is moved, the gap between the upper and lower cars 10 and 20 can be widened or narrowed.

      In addition, even if the modified embodiments different from the contents described in the present invention should not be understood individually from the technical spirit or prospects of the present invention, of course, it is within the claims attached to the present invention.

      1 is a view showing a state of adjusting the distance between a pair of cars by moving only one car in a conventional double deck elevator,

      2 and 3 is a view showing a state of adjusting the distance between a pair of cars in a direct manner in a conventional double deck elevator,

      4 is a view showing a state of adjusting the distance between a pair of cars in an indirect manner in a conventional double deck elevator,

      5 is a view showing a safety device provided in a conventional double-tech elevator,

      6a and 6b is a front view and a perspective view showing the configuration of a double deck elevator having a floor alignment function according to an embodiment of the present invention,

      7a and 7b is a front view and a perspective view showing the roping structure of the double deck elevator having a floor alignment function according to an embodiment of the present invention,

      8 is a partial cross-sectional view showing a roping structure of a double deck elevator having a floor fitting function according to an embodiment of the present invention;

      9 is a perspective view showing the configuration of an emergency stop device for a double deck elevator having a floor alignment function according to an embodiment of the present invention,

      10A and 10B are perspective views showing an operating state of an emergency stop device of a double deck elevator having a floor fitting function according to an embodiment of the present invention;

      11 is a view schematically showing the configuration of a double deck elevator having a floor alignment function according to another embodiment of the present invention,

      12 is a view schematically showing the configuration of a double deck elevator having a floor alignment function according to another embodiment of the present invention,

      13A and 13B are views schematically showing a state in which a wire rope or a chain is applied to a double deck elevator having a floor fitting function according to the present invention.

      Explanation of symbols on the main parts of the drawings

10: upper car, 12: upper car upper stem,

20: lower car, 22: lower car upper stem,

30: mainframe, 31: upper member,

32: side member, 32a: guide rail,

34: upper support member, 36: lower member,

38: intermediate support member, 40: chain,

50: drive part, 52: sprocket,

60: emergency stop device, 62: operating lever,

64: working rope, 66: pulley,

68: pressurization, 70: wire rope,

80: belt, 90: main sheave,

92: main rope, 94: counterweight,

12a, 12b, 12c, 12d, 22a, 22b, 22c, 22d, 34a, 34b, 38a, 38b: pulley.

Claims (6)

A pair of side members installed vertically, the upper member is coupled to the upper end of the side member and the main rope is installed, the upper support member of the lower side, the lower member is coupled to both ends of the lower end of the side member And a main frame formed of an intermediate support member horizontally installed at a center portion of the pair of side members; Upper and lower cars, respectively, are installed in a state in which the upper and lower cars are movable up and down along the guide rails with respect to the intermediate support member; A pair of pulleys are respectively installed on the upper body of the upper car and the lower car, and one end of the chain is supported by the first and second pulleys of the upper car upper body of the upper support member while being fixed to one side of the upper support member. A 2: 1 roping structure is applied in which the other end of the chain is fixed to one side of the upper support member via the second pulley and the first pulley of the lower car upper body after passing through the sprocket of the drive unit installed on the other side; The double deck elevator having a floor fitting function, characterized in that configured to open or narrow the space between the upper and lower cars in accordance with the forward or reverse rotation of the drive unit.       The method of claim 1,      The pair of pulleys installed on the upper body of the lower car are installed on both ends of the upper body of the lower car, and are formed to be concave to correspond to the protrusion of the guide member provided along the side member of the main frame. Double deck elevator with floor alignment function, characterized in that the chain is configured to be installed along both sides of the.       The method of claim 1,       Double deck elevator with floor fitting, characterized in that the chain can be replaced by a belt or rope.       The method of claim 1,       One side of the upper car and the lower car is provided with an operating lever of the emergency stop device, respectively, and the operating lever is connected to both ends of the operating rope via the pulley of the upper support member, respectively, by gravity due to the cutting of the main chain When the upper and lower cars fall, the operation lever is pulled upwards to operate the emergency stop device so that the emergency stop device pressurizes the rails and is configured to prevent the fall of the upper and lower cars. Having a double deck elevator. A pair of side members installed vertically, the upper member is coupled to the upper end of the side member and the main rope is installed, the upper support member of the lower side, the lower member is coupled to both ends of the lower end of the side member And a main frame formed of an intermediate support member horizontally installed at a center portion of the pair of side members; Upper and lower cars, respectively, are installed in a state in which the upper and lower cars are movable up and down along the guide rails with respect to the intermediate support member; A pair of pulleys are installed on the upper body of the upper car and the lower car, and a pair of pulleys are installed on the upper support member and the intermediate support member, respectively, and one end of the chain is fixed to one side of the upper support member. The sprocket of the drive unit installed on the other side of the upper support member after sequentially passing through the first pulley of the lower car upper body and the first pulley of the intermediate support member, the second pulley of the intermediate support member and the second pulley of the lower car upper body Through the second pulley of the upper car upper body and the second pulley of the upper support member and the first pulley of the upper support member and the first pulley of the upper car upper body sequentially through the other end of the chain of the upper support member A 4: 1 roping structure fixed to one side is applied; The double deck elevator having a floor fitting function, characterized in that configured to open or narrow the space between the upper and lower cars in accordance with the forward or reverse rotation of the drive unit. A pair of side members installed vertically, the upper member is coupled to the upper end of the side member and the main rope is installed, the upper support member of the lower side, the lower member is coupled to both ends of the lower end of the side member And a main frame formed of an intermediate support member horizontally installed at a center portion of the pair of side members; Upper and lower cars, respectively, are installed in a state in which the upper and lower cars are movable up and down along the guide rails with respect to the intermediate support member; Four pulleys are installed on the upper body of the upper car and the lower car, and a pair of pulleys are installed on the upper support member and the intermediate support member, respectively, and one end of the chain is fixed to one side of the upper support member. The first pulley of the lower car upper body and the first pulley of the intermediate support member and the second pulley of the lower car upper body and the third pulley of the lower car upper body and the second pulley and the lower car upper body of the intermediate support member After passing through the four pulleys in sequence, the fourth pulley of the upper car upper body and the second pulley of the upper car upper body and the third pulley and the upper car upper body of the upper car upper body through the sprocket of the drive unit installed on the other side of the upper support member 6: 1 roping in which the other end of the chain is fixed to one side of the upper support member via the second pulley of the body and the first pulley of the upper support member and the first pulley of the upper car upper body in sequence Joe is applied; The double deck elevator having a floor fitting function, characterized in that configured to open or narrow the space between the upper and lower cars in accordance with the forward or reverse rotation of the drive unit.

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