KR100930021B1 - Up / down retractable elevator door device - Google Patents

Abstract

According to the present invention, a driving motor is installed on an upper portion of the elevator car, and the first shaft is rotated forward / backward by the driving motor, and horizontally installed on the upper portion of the elevator car, the first shaft having integrally formed sprockets at both ends thereof. In the lower part, the first shaft and the second shaft, which are integrally formed with sprockets at both ends so as to be connected and rotated by a chain, are horizontally installed, and both front sides of the lift car door and rear sides of the landing doors installed on each floor, respectively. The first and second shafts are rotated forward / reversely by the driving motor to rotate the chain connected therebetween, so that the bracket integrally formed on the chain is caught by the hanging car door and the lifting car door. The landing door is supported to ascend to a certain height so that the hoisting car is opened, and when the boarding is completed, the driving motor rotates in reverse to the first and second shafts. By rotating the shaft and the chain in the reverse direction, the elevator car door and the landing door can be closed at the same time as the bracket supporting the hanger descends, thereby eliminating the need to install a large number of separate driving motors in the elevator car on each floor. One drive motor installed can open and close the lifting car door and landing door at the same time, simplifying the construction process of the elevator, reducing manufacturing cost, shortening the air, and reducing the power applied to reduce the cost. It is intended to provide a door device for an up / down retractable elevator.

Description

Door device for elevator, top / bottom retractable type {Door device for elevator which is open and close by top and bottom}

The present invention relates to an up / down open / close door device installed in front of an elevator car and each floor of an elevator installed in a building, and more specifically, the elevator car door and a landing door of each floor are installed on an upper part of the elevator car. It can be opened and closed by a single driving motor, which simplifies the elevator construction process and required parts to shorten the air, and can dramatically reduce the cost and management and maintenance costs for construction. It relates to a door device.

As is well known, the elevator is a device that allows the passengers or cargo to move smoothly and quickly as the elevator car moves up and down along the hoistway formed inside the building. The landing car door is installed and the landing door is installed in the landing hall for the safety of the waiter. After the floor car is moved, the lifting car door is opened and at the same time the landing door is opened to make boarding and getting off.

As described above, the doors installed in the landing and the hoistway are divided into two types, the left / right open type and the up / down open type. The conventional up / down open / close door device according to the present invention is driven at the upper part of the hoist car. The motor car was installed to open and close the lift car doors, and each drive motor was installed on each floor of the hoistway to open and close the landing doors to allow boarding.

That is, when the hoist car arrives at the target floor, the driving motor installed in the hoist car operates to lift the hoist car door upward, and at the same time, the hoist motor installed in the hoistway also actuates the hoist door to make the boarding. The elevator car door and the landing door is lowered by the reverse rotation of the drive motor of the elevator car is movable.

However, in order to apply power to the driving motor to open and close the landing doors at each platform, power lines must be installed on each floor, so separate electrical equipment must be provided. There was a problem to raise the, the power consumption of the operation of the drive motor installed in each floor was consumed as well as the cost burden of maintenance.

On the other hand, the configuration of Patent Registration No. 10-0240962 (elevator door opening and closing door control device) has been proposed in recent years to solve the above problems, such as receiving the car door position signal from the car door position switch and transmit it, etc. A control panel for overall control of the system; Controls the boarding door motor according to the door driving command of the control panel, and compares the boarding door position signal from the boarding door position switch with the car door position signal from the control panel by comparing means and controls the opening and closing of the boarding door accordingly. It is characterized by consisting of a plurality of elevator door control unit on each floor, such elevator up and down door opening and closing door control device receives both the car door position signal and the lift door position signal from the car door control unit or the lift door control unit to compare the corresponding By adjusting and controlling the speed of the door, it is possible to reduce the speed deviation between the car door and the boarding door, thereby preventing the safety accidents such as cargo or passengers getting stuck in the car door. This situation is not harvested.

In order to solve the above problems, the present invention installs a driving motor on the upper part of the elevator car, and is rotated forward and backward by the driving motor, and the first shaft formed integrally with the sprocket at both ends is horizontally on the upper part of the elevator car. Installed on the lower side of the elevator car and horizontally installed second shafts having sprockets integrally formed at both ends thereof so as to be connected and rotated by the first shaft and the chain, and installed on both sides of the elevator car door and on each floor. Hangers are formed on both sides of the rear side of the landing door, and the first and second shafts are rotated forward / reversely by the driving motor to rotate the chain connected therebetween, thereby forming the bracket integrally with the chain. Support the elevator car and the landing door to rise to a certain height so that the elevator car is opened, and when the boarding is completed The drive motor rotates in the reverse direction to rotate the first and second shafts and the chain in the reverse direction so that the lifting car door and the landing door can be closed at the same time as the bracket supporting the hanger is lowered, so that the landing door of the conventional floor can be separately It is possible to simultaneously open and close the lift car door and the landing door by one drive motor installed on the lift car without installing a large number of drive motors. It is possible to reduce the power applied to reduce the cost to provide a door device for up and down open and close elevators.

In order to achieve the above object, the present invention is applied to the elevator to facilitate the inter-floor movement of passengers or cargoes by moving the elevator car along the hoistway formed inside the building, the front and rear opening and closing type in front of the elevator car In the door door for elevator doors installed in the upper and lower control doors to control the landing door is installed in the upper and lower retractable for safety in the platform of each floor, the power is installed on the upper of the elevator car is applied from the outside A drive motor rotated forward / backward by; A first shaft installed at a central portion thereof so as to be connected to the drive motor by a chain, and having a sprocket integrally mounted at both ends thereof, the first shaft being rotatably installed at an upper portion of the elevator car; A second shaft which is integrally mounted at both ends thereof so as to rotate in association with the first shaft, the second shaft being rotatably installed at a lower portion of the hoisting car; A chain connected to each of the sprockets installed at both ends of the first and second shafts to transmit power, and one side of which is integrally provided with a bracket of a predetermined type with a magnet attached thereto; Hanging by the bracket installed in the chain is characterized in that it is formed to protrude a predetermined length on each side of the front both sides of the lifting car door and the rear side of the landing door so that the lifting car door and the landing door can be lifted / lowered at the same time.

In addition, the present invention, the first to fourth guide pulley rotatably installed on both sides of the upper side of the lifting car door and the upper side of the landing door of each floor of the building, and separate first to fourth wire ropes having a predetermined length. It is provided separately, one end of the first wire rope is fixed to one side of the lower end of the lifting car door. The other end is provided on the balance weight is installed on the other side of the elevator car via the first and second guide pulley Firmly fixed and installed, one end of the second wire rope is fixed and installed at the lower end of the other side of the lifting car door, and the other end is firmly fixed and installed on the counterweight via the second guide pulley, One end of the three-wire rope is fixed and installed at the lower end of one side of the landing door, and the other end is firmly fixed and installed on the balance weight installed on the guide of the hoistway via the third and fourth guide pulleys. One end of the rope is fixed and installed at the other end of the landing door, and the other end is firmly fixed and installed on the balance weight via the fourth guide pulley, and the lifting car door and the landing door are lifted and lowered by the balance weight. It is characterized in that the smooth.

As described above, by providing the door device for the up / down opening / closing elevator of the present invention, the lifting car door and the landing hall by one driving motor installed on the landing car without installing separate driving motors in the landing halls of the conventional floors, respectively. The door can be opened and closed at the same time to simplify the elevator construction process to reduce the manufacturing cost as well as to shorten the air, it is a useful invention that can reduce the cost by reducing the applied power.

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

1 is a front view illustrating a state in which the door apparatus is installed according to the present invention, and FIG. 2 is a side view illustrating the state in which the door apparatus is installed according to the present invention, and FIG. 3 shows an operating state of the present invention. FIG. 4 is a front view illustrating another embodiment of the present invention, FIG. 5 is a side view illustrating another embodiment of the present invention, and FIG. 6 is an operational state of FIGS. 4 to 5. It is an example of the front shown.

The door device for the up / down open / close elevators according to the present invention includes a hoist car door 100 installed in front of the hoist car 10, a hoist door 200 installed in the hoist hall 20 of each floor, and a driving motor 300. The first and second shafts 400, 500, the chain 600, and the hook 700, 800 are large.

As shown in FIGS. 1 and 2, the elevating car door 100 has one or two opening / closing manners in order to allow the occupant or cargo to enter and exit and protect the inside of the elevating car 10. Is provided as a door to be installed in front of the elevator car 10, it is preferably used as a freight transport elevator.

The landing door 200 is installed between the landing 20 and the hoistway (1) to provide a safe or occupant waiting on the hoistway or cargo, one or two doors in the opening and closing manner to provide a landing Install it on

The drive motor 300 is a predetermined power is generated by the power applied to the forward / reverse rotation to raise or lower the lifting car door 100 and the landing door 200, of the lifting car 10 It can be installed horizontally in the upper center part.

The first shaft 400 is rotated at the same time according to the driving of the drive motor 300, is provided in the form of a metal rod having a predetermined length, the central portion of the chain 310 is provided separately from the drive motor 300 Sprocket 410 is installed to be connected to the), and the sprocket 420 is firmly mounted on both ends thereof, so that the sprocket 410 is installed horizontally so as to be rotatable at an upper predetermined height of the elevator car 10.

The second shaft 500 is rotated at the same time according to the driving of the first shaft 400, it is provided in the form of a metal rod having a predetermined length, both ends of the separate sprocket 510 is firmly mounted What is necessary is just to install so that the lower part of the elevator car 10 can rotate.

Both sides of the chain 600 are vertically wound on sprockets 420 and 510 mounted at both ends of the first and second shafts 400 and 500, respectively, to transmit power of the driving motor 300. As a typical example, an angle bracket 610 is installed at a predetermined position of the chain 600 so as to be grounded with the hanger 700, and the magnet 620 having a predetermined size having excellent magnetic force. ) Is to be integrally fastened.

The hangers 700 and 800 are formed by protruding predetermined lengths of metal plates of predetermined sizes on both sides of the front surface of the lifting car door 100 and both sides of the rear surface of the landing door 200, respectively. As the bracket 610 installed on the chain 600 rotates by driving of the driving motor 300, the lifting car door 100 is pushed upward while being in contact with the bottom surfaces of the hangers 700 and 800. And the landing door 200 is raised at the same time is to open the elevator car 10.

On the other hand, Figures 4 and 5 are respectively installed in the elevator car 10 and the platform 20 of each floor in order to facilitate the lifting / lowering of the elevator car door 100 and the landing door 200, its configuration The first to fourth guide pulley 110, 120, 210, 220 and the first to fourth wire rope 130, 140, 230, 240, balance weight 150, 250 It is composed.

The first and second guide pulleys 110 and 120 guide the first and second wire ropes 130 and 140 and at the same time easily change the traveling direction. What is necessary is to install each of the upper part of 10), that is, rotatably so that a predetermined height is maintained at both upper sides of the lifting car door 100.

The first and second wire ropes 130 and 140 are conventionally formed to have a predetermined length by twisting a plurality of steel wires, and one end of the first wire rope 130 provided is the lifting car door ( It is fixed to one side lower end of the 100, the other end is to be extended downward through the first and second guide pulleys (110, 120) to be firmly fixed to the upper portion of the balance weight 150, the second wire One end of the rope 140 is fixed to the other side lower end of the elevating car door 100, the other end is extended downward through the second guide pulley 120 to be firmly fixed to the upper portion of the balance weight 150 will be.

The third and fourth guide pulleys 210 and 220 guide the third and fourth wire ropes 230 and 240 and make it possible to easily change the traveling direction, respectively. What is necessary is to install each of the upper part of 20), that is, rotatably so that a predetermined height may be maintained on both sides of the upper door of the landing door 200.

The third and fourth wire ropes 230 and 240 are conventionally formed to have a predetermined length by twisting a plurality of steel wires, and one end of the provided third wire rope 230 is the landing door 200. Fixed at one side lower end, the other end is to be extended downward through the third and fourth guide pulleys 210 and 220 to be firmly fixed to the upper portion of the balance weight 250, the fourth wire rope One end of the 240 is fixed to the lower end of the other side of the landing door 200, the other end is extended downward through the fourth guide pulley 220 is to be firmly fixed to the upper portion of the balance weight 250, It is preferable to install the guide rails (not shown) at predetermined positions of the other side of the hoisting car and the hoistway so that the balance weight can be safely lifted / lowered.

As shown in FIG. 3, the operation of the present invention in a state in which a plurality of components are installed is first performed by the control unit (not shown) when the car 10 moves along the hoistway 1 to the target floor. When the power is applied to the driving motor 300 and operated, the first shaft 400 connected by the chain 310 and the sprocket 410 rotates in the forward direction, and the sprockets installed at both ends of the first shaft 400 The second shaft 500 installed at both ends of the sprockets 510 and 520 that are connected and rotated by the 420 and 430 and the chain 600 are rotated at the same time, and the brackets installed in the rotating chain 600 ( 610 is in contact with the hooks 700, 800 provided on both sides of the lifting car door 100 and the landing door 200, respectively, and lifts the lifting car door 100 and the landing door 200 at the same time. To open the front of the car 10 so that it can be boarded and unloaded The.

At this time, as shown in FIG. 6, the first and second wire ropes, each of which has one end fixed to both lower sides of the lifting car door, are guided by the first and second guide pulleys or the second guide pulley, and the balance is further lowered. By reducing the weight load of the elevating car door and at the same time, the third and fourth wire ropes each of which is fixed to both sides of the lower side of the elevating door are guided down by the third and fourth guide pulleys By reducing the weight load of the landing door, the opening of the lifting car can be easily performed.

Subsequently, when the driving motor is reversely rotated, the first and second shafts and the chain are reversely rotated so that the bracket installed on the chain is lowered, and the hanger formed of the metal plate is lowered along the bracket by the magnetic force of the magnet installed on the bracket. The elevator car door and the landing door is simultaneously lowered so that the front of the elevator car is closed.

At this time, the first and second wire ropes, each of which has one end fixed to both lower sides of the elevating car door, are guided by the first and second guide pulleys or the second guide pulley to increase the balance, thereby increasing the weight load of the elevating car door. At the same time, the third and fourth wire ropes, each of which has one end fixed to both lower sides of the landing door, are guided by the third and fourth guide pulleys to increase the balance, thereby reducing the weight load of the landing door. By closing, the elevator car can be easily closed.

1 is an exemplary front view of a state in which a door apparatus according to the present invention is installed.

Figure 2 is an exemplary side view of a door device installed state according to the present invention.

Figure 3 is an exemplary front view showing an operating state of the present invention.

Figure 4 is an exemplary front view showing another embodiment of the present invention.

Figure 5 is an exemplary side view showing another embodiment of the present invention.

Figure 6 is an exemplary front view showing the operating state of Figures 4 to 5.

     *** Description of the symbols for the main parts of the drawings ***

       10: elevator car 100: elevator car door

 110, 120: first and second guide pulley 130, 140: first and second wire rope

 150, 250: Balance weight 200: Platform door

 210, 220: 3rd and 4th guide pulley 230, 240: 3rd and 4th wire rope

      300: drive motor 310, 600: chain

 400, 500: First and second shafts 610: Brackets

 700, 800: Hanger

Claims (2)

The elevator car 10 is applied to the elevator to facilitate the inter-floor movement of passengers or cargoes by lifting and lowering along the hoistway 1 formed inside the building, and in the up / down opening and closing manner in front of the hoist car 10. In the elevator car door 100 to be installed and the elevator door device for controlling the landing door 200 is installed in the upper and lower retractable for safety in the platform of each floor, A driving motor 300 installed at an upper portion of the hoisting car 10 to be rotated forward / backward by power applied from the outside; The sprocket 410 is installed at the center portion so that the drive motor 300 and the chain 310 can be connected to each other. The sprockets 420 and 430 are integrally mounted at both ends of the elevator car 10. A first shaft 400 rotatably installed at an upper portion thereof; The second shaft 500 and the sprocket 510 and 520 are integrally mounted at both ends so as to be rotated in association with the first shaft 400 so as to be rotatable in the lower portion of the elevator car 10. ; The sprockets 420, 430, 510 and 520, which are installed at both ends of the first and second shafts 400 and 500, respectively, are connected to each other to transmit power, and one side has a magnet 620 attached thereto. The chain 600 and the bracket 610 is integrally installed; It is caught by the bracket 610 installed in the chain 600 and the lifting car door 100 and the landing door 200 can be simultaneously lifted / lowered on both sides of the lifting car door 100 and the landing door 200 Up and down retractable elevator door device, characterized in that formed on both sides of the back of the hanger (700) (800) to protrude a certain length. The first and fourth guide pulleys 110, 120, 210, and 220 of claim 1, wherein the first to fourth guide pulleys 110, 120, 210, and 220 are respectively provided on both upper sides of the elevator car door 100 and upper sides of the landing door 200 of each floor of the building. It is installed to be rotatable, and separately provided separate first to fourth wire ropes 130 (140, 230, 240), One end of the first wire rope 130 is fixed and installed on one side lower end of the lifting car door 100, the other end of the lifting car 10 via the first and second guide pulleys 110 and 120. Firmly fixed and installed on the balance weight 150 is installed on the other side of the), One end of the second wire rope 140 is fixed to the bottom of the other side of the lifting car door 10. The other end is firmly fixed on the balance weight 150 via the second guide pulley 120. Install it, One end of the third wire rope 230 is fixed and installed at one side lower end of the landing door 200, the other end of the guide of the hoistway (1) via the third and fourth guide pulleys (210, 220) Firmly fixed and installed on the balance weight 250 installed on, One end of the fourth wire rope 240 is fixed and installed at the lower end of the other side of the landing door 100, the other end is firmly fixed and installed on the balance weight 250 via the fourth guide pulley 220. Up and down the elevator door device, characterized in that the lifting car door and the landing door by the balance weight (250) to smoothly move up and down.

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