KR20110073671A - A door opening and closing unit and a sliding door system having a lower driving noise - Google Patents

Abstract

PURPOSE: A modular electric-powered sliding door apparatus and an electric-powered door opening and closing unit with low noise are provided to improve durability by protecting wires using a cable carrier. CONSTITUTION: An electric-powered door opening and closing unit with low noise comprises a base assembly, a motor assembly(200), a tension controller(400), a return shaft, a trolley assembly, a conveyor belt, a limit switch, and a control unit. The base assembly is arranged in an entrance. The motor assembly is installed in one end of the base assembly. The tension controller is installed in the other end of the base assembly. The return shaft is installed inside the base assembly. The trolley assembly is moved along the return shaft. The conveyor belt connects the motor assembly and the tension controller. The limit switch is installed in the base assembly and detects the stopped point of the motor assembly. The control unit controls the operation of the motor assembly based on the signal detected from the limit switch.

Description

Modular electric low noise sliding door device and electric low noise door opening and closing unit {A door opening and closing unit and a sliding door system having a lower driving noise}

The present invention relates to a modular door opening and closing unit configured to open and close the electric sliding door device and the individual door panel, the door panel is excellent in the straightness of the door panel to reduce the opening and closing noise, so as not to interfere with each other Modular, low-noise, highly durable due to the parts being mounted in the right position of the base assembly, manufactured in a compact module form, easy to install, and no need to readjust the parts after installation or after a period of use A sliding door device and an electric low noise door opening and closing unit.

Generally, the sliding door apparatus is divided into a hydraulic type for opening and closing the door panel using a fluid force and an electric type for opening and closing the door panel with a driving force of a DC motor. Among them, the electric type has the advantages of better maintenance and switch response than the hydraulic type, small opening and closing noise of the door panel, small size and light weight and easy installation.

Electric sliding door devices having such advantages are widely used as screen doors of railway stations or subway stations, automatic doors of elevators, entrance doors of public transportation such as railways, subways or buses, and front doors of buildings.

The electric sliding door device has a slightly different configuration for each manufacturer, but generally includes a door panel, starting means such as a sensor or a push button, a DC motor for generating power required for the left and right movement of the door panel, and the like. Driving means, a control unit for controlling the operation of the driving means by a signal of the starting means, a transmission unit for moving the door panel left and right by the power of the driving means, It includes a rail which is a movement path. In addition, the electric sliding door device is installed in the form of constituting a part of a structure such as a building or a railway vehicle through a rectangular frame formed with a door opening and closing by the door panel, the drive means and the control unit, the electric unit, etc. on the upper side of the frame The cover plate is mounted on the upper side of the frame so that these elements are disposed and these components are not exposed to the outside.

Attached Figure 1 shows a conventional example of the door opening and closing unit for the electric sliding door device, the base 20 is coupled to the upper side of the frame 10, the motor 30 is provided on one side of the base and the shaft of the motor Screw 40 connected through the coupling 32, the support means 50 for rotatably supporting the screw, and the transfer nut portion 60 fixed to the upper side of the door panel 14 and movable along the screw ), A cover formed with a control unit 90 for controlling the driving state of the motor in accordance with signals input from the plurality of sensors S1 to S4, and an opening 80 for manual operation of the transfer nut unit. The cover 70 is coupled to the upper side of the cover to conceal the motor and the support means, the transfer nut and the control unit.

The door opening and closing unit for the electric sliding door device of the conventional configuration described above, the transfer nut portion 60 fixed to the upper side of the door panel is moved left and right along the screw 40, the door panel 14 is opened and closed, installation After a certain period of time after completion, the central portion of the screw 40 tends to sag down. As such, when the central portion of the screw 40 sags downward due to its own weight or the load of the door panel, the straightness of the door panel is deteriorated, and thus the opening and closing noise of the door panel is generated, and it can no longer be used. That is, the door opening / closing unit of the above-described configuration uses the elongated screw to incur the cost and driving noise of the screw, and after a certain period of time, it is inconvenient to replace the parts with new ones or reposition the parts. there was.

In addition, most of the electric sliding door device and the door opening and closing unit according to the conventional configuration has a large number of parts, takes a lot of time to assemble, and therefore is not easy to install. there was.

In addition, each part has a tolerance, so that the larger the number of parts, the larger the volume of the device, which has the disadvantage of increasing the height so that a larger installation space can be secured on the upper side of the frame. Attached Figure 2 is a height of the installation space formed on the upper side of the door panel of the electric low noise sliding door device according to the present invention, the door panel of the conventional electric sliding door device is installed a door opening and closing unit different from the configuration of FIG. As a drawing comparing the height of the installation space formed on the upper side, it can be seen that the height difference reaches about 130 mm. This difference in height means, for example, that the width of the cover plate required by the electric sliding door device of the conventional configuration should be much wider than that required by the electric low noise sliding door device according to the present invention, which is an electric sliding door device. This increases the installation cost. In addition, due to the height difference, the height of the structure on which the electric sliding door device is installed must be increased by more or the height of the door panel by that much. When increasing the height of the structure, there is a disadvantage in that the construction cost or manufacturing cost increases. When lowering the height of the user has the disadvantage of causing any inconvenience or trouble to the user's access.

The present invention has been made to solve the problems of the above-described electric sliding door device and the door opening and closing unit of the conventional configuration, excellent straightness of the door panel, almost no opening and closing noise of the door panel, each component The modular electric low noise sliding door device and the electric low noise door opening and closing unit, which are mounted at the proper position of the base assembly and the electric wire is protected by the cable carrier, thereby preventing the parts from interfering with the opening and closing of the door panel, thereby improving the durability of the device. The purpose is to provide.

In addition, the present invention uses an electric low-noise door opening and closing unit assembled in a compact module form of the components, it is easy to install the electric sliding door device in the field, the module does not need to readjust the position of the parts after a certain period of use or after installation is completed Another object is to provide a type electric low noise sliding door device and an electric low noise door opening and closing unit.

In addition, the present invention is another object to provide a modular electric low noise sliding door device that can lower the installation height as a whole than the electric sliding door device according to the conventional configuration without any inconvenience or trouble when the user enters and exits. have.

The present invention is an electric sliding door system installed on the entrance side for the purpose of opening and closing the doorway formed in any structure, such as a building or a railway vehicle, less opening and closing noise of the door panel than the electric sliding door device of the conventional configuration, The installation height is also low, and when applied to subway cars, etc., various benefits can be provided. In addition, the electric low noise sliding door device and the door opening and closing unit according to the present invention has a modular configuration is easy to maintain, the overall compact configuration is less constraints on the installation space. According to the present invention, according to the number of door panels to be controlled, a single type (one side opening and closing type) in which both the tension regulator and the motor assembly are installed in one base assembly, and the tension regulator and the motor assembly in the two base assemblies, respectively It can be provided as a double type (double-sided opening and closing type) distributed arrangement, it can be used to cook according to the application.

The first feature in terms of the configuration of the modular electric low noise sliding door device and the door opening and closing unit according to the present invention is that the linear bush of the trolley assembly is moved along the conveying shaft disposed inside the base assembly, thereby being combined with the trolley assembly. The door panel is configured to open and close left and right. In a preferred embodiment, the conveying shaft is a hollow shaft in the shape of a hollow pipe, so that sagging due to its own weight can be prevented, thereby improving the straightness of the door panel and reducing the opening and closing noise of the door panel. For example, even after a period of time, there is no need to reposition the part. In addition, since there is little friction between the inner surface of the linear bush and the outer surface of the conveying shaft, the door panel can be opened and closed smoothly to reduce the opening and closing noise.

The second feature in terms of the configuration of the modular electric low noise sliding door device and the door opening and closing unit according to the present invention is a trolley assembly described above or a tension regulator described later or a motor assembly for generating a driving force used to open and close the door panel. It is arranged outside of the side block (extrusion) of the base assembly so as to be isolated from other parts. In a preferred embodiment, the base assembly comprises two side blocks arranged at regular intervals, a back plate that is longer in length than the gap between the two side blocks, and a front plate whose length is slightly longer than or equal to the gap between the two side blocks. Since the motor assembly does not protrude toward the width direction of the side block. Therefore, external shock is not directly applied to the motor assembly, and parts do not interfere with each other.

The third feature in terms of the configuration of the modular electric low noise sliding door device and the door opening and closing unit according to the present invention is that it is further provided with a tension regulator for adjusting the tension of the conveyance belt for transmitting the driving force of the motor assembly to the trolley assembly. Is the point. The tensioner and the motor assembly are each disposed at both ends of the base assembly when the base assembly is one, and the farthest between the two when the base assembly is two. The tension regulator and the motor assembly each have a pulley, and a conveyance belt is surrounded around these pulleys. In general, the conveying belt may be loosened and peeled off when used for a certain period of time, but in the case of the present invention, since the distance between both pulleys can be adjusted by a tension regulator, the conveying belt is prevented from being separated.

The fourth feature in terms of the configuration of the modular electric low noise sliding door device and the door opening and closing unit according to the present invention is further provided with a cable carrier for protecting the electric wires of electrical parts (electrical appliances) installed on the door panel side or the base assembly side. Is that it is. In a preferred embodiment of the present invention, one end of the cable carrier is fixed to the side of the trolley assembly from which the electric wire of each electrical component is drawn out and the other end of the cable carrier is fixed to the door mounting bracket side. The use of the cable carrier eliminates the breakage and interference of electric wires that may occur when the door panel is opened and closed, and the durability of the device is improved.

More specifically, the electric low noise door opening and closing unit according to the first embodiment of the present invention is a one-door opening and closing type electric door opening and closing unit installed on the doorway side to open and close the doorway formed in any structure, the base disposed on the doorway side An assembly; A motor assembly mounted to one end of the base assembly; A tension regulator mounted on the other end of the base assembly to face the motor assembly; A conveying shaft installed inside the base assembly; A trolley assembly disposed inside the base assembly to move along the conveying shaft; A transport belt connecting a portion between the motor assembly and the tension regulator, the transport belt being partially fixed to the trolley assembly; A limit switch installed in the base assembly to detect a stop point of the motor assembly such that the trolley assembly moves by a predetermined stroke and then stops; And a control unit controlling the driving of the motor assembly based on the signal of the limit switch. And a control unit.

In addition, the electric low noise door opening and closing unit according to the second embodiment of the present invention is a double-sided opening and closing type electric door opening and closing unit which is installed on the doorway side to open and close the doorway formed in any structure, the door of the doorway to open and close only half of the doorway. A first electric low noise door open / close module installed on either side, and a second electric low noise door open / close module installed on the other side of the door to open and close the other half of the door in conjunction with driving of the first electric low noise door open / close module And a control unit for controlling driving of the first electric low noise door opening and closing module , wherein the first electric low noise door opening and closing module includes a base assembly disposed at one side of the entrance and a motor assembly mounted at one end of the base assembly. And a conveying shaft installed inside the base assembly, and can be moved along the conveying shaft. To be configured to include a limit switch installed in the base assembly for detecting the stop time of the motor assembly so as to stop behind a trolley assembly, and the trolley assembly moves determined by a stroke that is disposed inside the base assembly, a second motor-driven low-noise door The opening and closing module includes a base assembly disposed at the other side of the entrance, a tension regulator mounted at one end of the base assembly, a conveying shaft installed inside the base assembly, and an inner side of the base assembly to be movable along the conveying shaft. And a trolley assembly disposed in the portion, the portion of the conveying belt connecting between the motor assembly and the tensioning regulator so that when the motor assembly is driven, the trolley assemblies of the first and second electric low noise door opening and closing modules move to opposite sides. On, each trolley assembly Is fixed, the control unit based on a signal of the limit switch is characterized in that for controlling the driving of the motor assembly.

The base assembly includes two side blocks spaced by the length of the conveying shaft so that both ends of the conveying shaft can be supported, and a rear side mounted over the two side blocks and having a length longer than the distance between the two side blocks. It may be composed of a plate and a front plate mounted over two side blocks facing the back plate and having a length equal to the distance between the two side blocks.

The motor assembly may include a mounting bracket mounted to the base assembly, a worm gear box coupled to one side of the mounting bracket, a drive motor into which a rotation shaft is inserted into the worm gear box, and a direction perpendicular to the rotation axis of the drive motor. It may be configured to include a drive pulley coupled to the worm gear box so that the driving force of the drive motor can be drawn out, it is possible to use a servo motor coupled to the encoder as a drive motor.

Further, the trolley assembly is in contact with the inner side of the back plate and the front plate of the base assembly, the trolley body having a linear bush into which the transport shaft can be fitted, a mounting hole for fitting the linear bush, and the back plate of the base assembly, respectively ( It may be configured to include at least two cam followers respectively installed at both ends of the trolley body so as to prevent the inclination due to the weight of the door panel installed in the state coupled to the trolley body.

In addition, the tension regulator, two brackets mounted on the base assembly at regular intervals to the left and right, two guard rails fixed between the two brackets at a predetermined interval back and forth, and positioned between the two guard rails, both ends Screw shafts respectively supported by two brackets, an adjusting block coupled to the screw shaft so as to be movable along the screw shaft, and an inner bracket and an adjusting block disposed close to the side block of the base assembly, It may be configured to include a spring to be fitted, and a driven pulley coupled to the control block in a direction perpendicular to the screw axis.

In addition, according to another embodiment of the present invention, the electric low noise door opening and closing unit further comprises a door mounting bracket mounted to the base assembly and a cable carrier having one end fixed to the door mounting bracket and the other end fixed to the trolley assembly. It can be provided.

Therefore, the modular electric low noise sliding door device according to a preferred embodiment of the present invention is characterized in that the door panel can be opened and closed by the aforementioned electric low noise door opening and closing unit.

In the modular electric low noise sliding door device and the door opening and closing unit of the present invention configured as described above, since the linear bush of the trolley assembly coupled to the upper side of the door panel moves smoothly along the hollow shaft-shaped conveying shaft, It has the advantage of low switching noise.

In addition, since the hollow shaft-shaped conveying shaft is light and has a high cross-sectional coefficient, deformation does not occur even after using it for a certain period of time, so that the straightness of the door panel is excellent.

In addition, since each component is mounted at an appropriate position of the base assembly and various wires are protected by the cable carrier, the components do not interfere with each other, and as a result, durability is improved.

In addition, there is an advantage that it is easy to install is manufactured in a compact module form.

In addition, the base assembly on which the various components are mounted is preferably aluminum extrudates, so it is light and durable. Thus, there is no need to reposition parts after a period of use.

Hereinafter, the features and advantages of the modular electric low noise sliding door device and the electric low noise door opening and closing unit according to the present invention will become more apparent by the following detailed description based on the accompanying drawings.

In addition, the terms described in the content of the invention and the claims are to be interpreted in the meaning corresponding to the technical idea of the present invention and the scope of protection of the present invention is not limited to the specific examples below.

Specific Example

3 is a front view schematically showing the exterior of a double-sided open / closed electric low noise sliding door device according to an embodiment of the present invention, and FIGS. 4 to 10 are main parts of FIG. 3 for convenience of description. Are perspective and enlarged views of a part, in a magnified or cross-sectional view.

In FIG. 3, two door panels 800 and 800 are installed at the entrances to open and close an entrance to an arbitrary structure, such as a building, and one of these door panels is operated by a user's operation on both sides. Push button 810 is opened to open. The push button 810 may be omitted depending on the usage environment, and may be changed to open and close the door panel by an infrared sensor.

The lower ends of the door panels 800 and 800 are transport rails to move left or right along a transport rail 900 installed on the bottom surface of the structure in which the modular electric noise-free sliding door device according to the present invention is installed. 900).

The electric low noise door opening and closing unit according to the present embodiment is disposed above the door panels 800 and 800 and is fixed to a rectangular frame (type of door frame) provided for installation of the modular electric low noise sliding door device. When the installation is complete, the electric low noise door opening and closing unit is hidden by the cover plate and is not visible.

Returning to FIG. 3, the double-sided opening and closing type electric low noise door opening and closing unit according to the present embodiment includes a first electric low noise door opening and closing module installed in the door panel 800 opening to the right and a door panel 800 opening to the left. It consists of a second electric low noise door opening and closing module installed.

3, 4 and 6, the first electric low noise door opening and closing module of the present embodiment, the base assembly 100A disposed on the upper side of the right door panel 800 and the right end of the base assembly 100A. The base assembly in the form of the motor assembly 200, the conveying shaft 500 disposed inside the base assembly 100A, and the outer side of the conveying shaft 500 so as to move along the conveying shaft 500. Limit installed on the front side of the base assembly to detect the stop point of the motor assembly 200 so that the trolley assembly 300 disposed inside the 100A and the trolley assembly 300 moves by a predetermined stroke and stopped. It consists of switches 540 and 540. Since the limit switches 540 and 540 and the control unit 700 are electrically connected to each other through the terminal block 530 installed at one side of the base assembly, the control unit is connected to the motor assembly 200 based on the signal of the limit switch. It is possible to control the driving of.

As shown in FIGS. 3, 5, and 7, the second electric low noise door opening / closing module according to the present embodiment is mounted to the base assembly 100B disposed on the upper side of the left door panel 800 and to the left end of the base assembly. The tension regulator 400, the conveying shaft 500 installed inside the base assembly, and the trolley assembly 300 disposed inside the base assembly in a form fitted to the outside of the conveying shaft so as to move along the conveying shaft. Consists of.

Each of the base assembly 100A of the first electric low noise door opening / closing module and the base assembly 100B of the second electric low noise door opening / closing module, as shown in FIGS. Two side blocks 110A, 110A, 110B and 110B, which are spaced by the length of the conveying shaft so that they can be supported, are mounted over the two side blocks and have a length greater than the distance between the two side blocks. It consists of a long back plate (130A) (130B), and a front plate (120A) (120B) mounted over two side blocks facing the back plate and having the same length as the gap between the two side blocks.

Each side block (110A) (110B) is the same in size and shape, and is manufactured in a form close to the "ㅂ" shape as a whole. On the other hand, although each front plate 120A, 120B has the same cross-sectional shape, the shape is finally different from each other by post-processing. For example, the front plate 120A used in the base assembly of the first electric low noise door opening / closing module may have a slit such that a stopper 580 fixed to the trolley assembly 300 may pass through as shown in FIG. 6. Although this is formed, such a slit is not formed in the front plate 120B used for the base assembly of the 2nd electric low noise door opening / closing module.

The stopper 580 is connected to the front plate 120A of the base assembly to detect the stop point of the motor assembly 200 so that the trolley assembly can be automatically stopped after moving the predetermined distance along the conveying shaft 500. In contact with the limit switches 540 and 540 provided at regular intervals, the limit switches generate a signal.

As shown in FIGS. 4, 6, and 9, the motor assembly 200 of the first electric low noise door opening / closing module includes a mounting bracket 240 mounted to the left end of the rear plate 130A of the base assembly, and a mounting bracket ( The worm gear box 230 coupled to one side of the 240, the drive motor 210 is inserted into the rotation shaft into the worm gear box 230, and the drive motor in a direction perpendicular to the rotation axis of the drive motor 210 ( A drive pulley 250 coupled to the worm gear box so that the driving force of the 210 is drawn out, and an encoder for decoding the rotation speed (or rotation speed) of the driving motor 210 and transmitting the result to the control unit 700. It consists of 220.

In addition, as shown in FIG. 10, each of the trolley assemblies 300 of the first and second electric low noise door opening and closing modules includes a linear bush 320 to which a transport shaft can be fitted and a mounting hole for fitting the linear bush. Four cam followers distributed on both ends of the trolley main body 310 and the trolley main body 310 so as to make rolling contact with the rear plate 130A, 130B and the front plate 120A, 120B of the base assembly. 330). 3 to 5 and 8, the upper end of the door panel 800 is bolted to the lower end side of the trolley body 310 protruding below the base assembly 100A and 100B. Therefore, when the trolley assembly moves left and right on the transport shaft 500, the door panel 800 is also moved left and right along the transport rail 900. Furthermore, the trolley assemblies 300 and 300 of each of the first and second electric low noise door opening and closing modules move in opposite directions when the motor assembly 200 is driven, that is, both door panels are opened and closed simultaneously. And a portion of the conveyance belt 510 which is enclosed between the tension regulator 400 is fixed. The conveying belt is an electric element that opens and closes the door panel by converting the rotational movement of the drive motor 210 into a linear motion, so that the conveying belt has an iron core inside the conveying belt, which hardly increases even when used for a long time. An example of the conveyance belt is a timing belt.

3, 5, and 7, the tension regulator 400 installed at the left end of the second electric low noise door opening and closing module is mounted to the left end of the base assembly 130B at regular intervals from side to side. Two brackets 450 and 450, and two guard rails 460 and 460 fixed between the two brackets at a predetermined interval back and forth, and between the two guard rails and having two brackets at both ends. A screw shaft 410 respectively supported on the control shaft, an adjusting block 420 coupled to the screw shaft so as to move along the screw shaft, and an inner bracket and an adjusting block disposed close to the side block 110B of the base assembly; A spring 440 fitted to the outside of the screw shaft, a driven pulley shaft 430 protruding from the control block in a direction perpendicular to the screw shaft, and a driven pulley 520 rotatably mounted to the driven pulley shaft. . The screw shaft may be manually rotated using a spanner, or may be automatically connected to a rotating shaft of the motor. Regardless of the method, when the screw shaft 410 is rotated by a certain amount, the control block 420 coupled to the screw shaft is moved toward the outer bracket along the screw shaft. As a result of this movement, the conveyance belt 510 enclosed between the driven pulley 250 coupled to the control block and the drive pulley 250 on the motor assembly side becomes taut to prevent the detachment of the conveyance belt. In this embodiment, the conveying belt has a tension of 9.8 kgf ± 10%.

In Figure 6, one end of the cable support mounted on the top of the front plate 120A of the base assembly is provided with a disconnect switch 550, which is a modular electric low noise sliding door device and electric low noise according to the present embodiment It is used to change the automatic operation status to manual operation status, for the door opening / closing unit to fail or for regular inspection.

As shown in Figs. 4 to 7, each of the two-sided opening and closing type electric low noise door opening and closing unit can be supported on the wall of any structure or a rectangular frame provided for installation of the electric low noise sliding door device, Door mounting brackets 560 and 560 are mounted on both upper ends of the base assembly, and cable supports 570 are mounted on the upper ends of the front plates 120A and 120B of the respective base assemblies. In addition, a cable carrier 600 having one end fixed to the door mounting bracket and the other end fixed to the trolley assembly is installed. Into the cable carrier 600, a signal line of three or four strands drawn from the terminal block 530 is fitted and protected.

1 is a schematic diagram of an electric sliding door device with an example door opening and closing unit according to a conventional configuration.

Figure 2 is a height of the installation space formed on the upper side of the door panel of the modular electric low noise sliding door device installed door opening and closing unit according to an embodiment of the present invention, the door opening and closing unit of the configuration different from Figure 1 Drawings prepared for the height of the installation space formed on the upper side of the door panel of the electric sliding door device.

Figure 3 is a front view showing a schematic appearance of a double-sided opening and closing modular electric low noise sliding door device according to an embodiment of the present invention.

4 is a schematic view of a low noise door opening and closing unit disposed on the upper side of the door panel of the double-sided opening / closing modular electric low noise sliding door device according to FIG. Omitted perspective view.

5 is a perspective view of the low noise door opening and closing unit disposed on the upper side of the door panel of the double-sided opening / closing modular electric low noise sliding door device according to FIG.

Figure 6 is a perspective view showing a schematic configuration of the electric low noise door opening and closing unit for the right side door panel opening and closing of the modular electric low noise sliding door device of the double-sided opening and closing according to FIG.

Figure 7 is a perspective view showing a schematic configuration of the electric low noise door opening and closing unit for opening and closing the left side door panel of the modular electric low noise sliding door device of both sides opening and closing according to FIG.

8 is a cross-sectional view of a state in which the transport shaft and the trolley assembly of the low noise door opening and closing unit shown in FIG. 4 are assembled;

9 is a perspective view of the motor assembly shown in FIG. 6 seen from the left side;

10 is a perspective view showing a schematic configuration of the trolley assembly shown in FIG.

[Description of Symbols for Main Parts of Drawing]

100A, 100B ... base assembly

110A, 110B ... side block

120A, 120B ... Front plate

130A, 130B ... Backplate

200 ... motor assembly

210 ... driving motor

220.Encoder

230 ... War Gear Box

240 ... mounting bracket

250 ... driven pulley

300 ... trolley assembly

310 ... trolley body

320 ... linear bush

330 ... Cam Followers

400 ... tension regulator

410 ... screw shaft

420 ... control block

430 ... driven pulley shaft

440 ... spring

450 ... bracket

460 ... guard rail

500 ... Return Shaft

510.Return belt

520 ... pulled pulley

530 ... Terminal Blocks

540 ... limit switch

550 ... isolating switch

560 ... door mounting bracket

570 ... cable support

580 ... stopper

600 ... cable carrier

700 ... control unit

800 ... door panel

810 Pushbuttons

900 ... Return rail

Claims (8)

An electric door opening and closing unit of one side opening type installed on the entrance side to open and close the entrance and exit formed in any structure, A base assembly disposed at the doorway side; A motor assembly 200 mounted at one end of the base assembly; A tension regulator 400 mounted to the other end of the base assembly so as to face the motor assembly 200; A conveying shaft 500 installed inside the base assembly; A trolley assembly 300 disposed inside the base assembly to move along the conveyance shaft 500; A conveyance belt 510, a portion of which is fixed to the trolley assembly 300 as a conveyance belt connecting between the motor assembly 200 and the tension regulator 400; A limit switch 540 installed in the base assembly to detect a stop point of the motor assembly such that the trolley assembly 300 moves by a predetermined stroke and then stops; And A control unit 700 for controlling the driving of the motor assembly 200 based on the signal of the limit switch 540; Electric low noise door opening and closing unit comprising a. As a double-sided opening and closing type electric door opening and closing unit installed on the entrance side to open and close the entrance and exit formed in any structure, It is installed on the other side of the doorway to open and close the other half of the doorway in conjunction with the drive of the first electric low-noise door opening and closing module installed on either side of the doorway to open and close only half of the doorway. A second electric low noise door opening and closing module, and a control unit 700 for controlling the drive of the first electric low noise door opening and closing module, The first electric low noise door opening and closing module, A base assembly disposed on either side of the doorway, a motor assembly 200 mounted at one end of the base assembly, a conveying shaft 500 provided inside the base assembly, and a conveying shaft 500 can be moved. The trolley assembly 300 disposed inside the base assembly so that the trolley assembly 300 is moved to a fixed stroke and then the limit switch 540 installed in the base assembly to detect the stop point of the motor assembly 200 so as to stop. ), The second electric low noise door opening and closing module, A base assembly disposed on the other side of the doorway, a tension regulator 400 mounted at one end of the base assembly, a conveying shaft 500 provided inside the base assembly, and movable along the conveying shaft 500. A trolley assembly 300 disposed inside the base assembly, When the motor assembly 200 is driven, the connection between the motor assembly 200 and the tension regulator 400 so that the trolley assemblies 300 and 300 of the first and second electric low noise door opening and closing modules move in opposite directions. To a portion of the conveying belt 510, each trolley assembly 300, 300 is fixed, Motorized low noise door opening and closing unit, characterized in that the control unit 700 controls the drive of the motor assembly 200 based on the signal of the limit switch 540. The method according to claim 1 or 2, The base assembly, Two side blocks arranged at intervals by the length of the transport shaft 500 so that both ends of the transport shaft 500 can be supported; A rear plate mounted over two side blocks and having a length longer than a distance between the two side blocks; And A front plate mounted over two side blocks facing the rear plate and having a length equal to a distance between the two side blocks; Electric low noise door opening and closing unit characterized in that consisting of. The method of claim 3, wherein Motor assembly 200, A mounting bracket 240 mounted to the base assembly, Worm gear box 230 is coupled to one side of the mounting bracket 240, Drive motor 210 and the rotation shaft is inserted into the worm gear box 230, Electric low noise door opening and closing characterized in that it comprises a drive pulley 250 coupled to the worm gear box 230 so that the driving force of the drive motor 210 is drawn out in a direction perpendicular to the rotation axis of the drive motor 210 unit. The method of claim 3, wherein The trolley assembly 300, A linear bush 320 into which the conveying shaft 500 can be fitted, A trolley body 310 in which a mounting hole for fitting the linear bush 320 is formed; An electric low noise door opening and closing unit, comprising: at least two cam followers (330) respectively distributed to both ends of the trolley body (310) so as to be in contact with the rear plate and the front plate of the base assembly. The method of claim 3, wherein Tension regulator 400, Two brackets 450 and 450 mounted to the base assembly at regular intervals from side to side; Two guard rails 460 and 460 fixed between the two brackets 450 and 450 at a predetermined interval back and forth, A screw shaft 410 which is placed between two guard rails 460 and 460 and whose ends are supported by two brackets 450 and 450, respectively, An adjusting block 420 coupled to the screw shaft 410 to move along the screw shaft 410, A spring 440 fitted to the outside of the screw shaft 410 so as to be positioned between the inner bracket 450 and the adjustment block 420 disposed close to the side block of the base assembly, Motorized low noise door opening and closing unit comprising a driven pulley (520) coupled to the control block (420) in a direction perpendicular to the screw shaft (410). The method of claim 3, wherein The electric low noise door opening and closing unit, A door mounting bracket 560 mounted to the base assembly, An electric low noise door opening and closing unit further comprising a cable carrier (600) having one end fixed to the door mounting bracket (560) and the other end fixed to the trolley assembly (300). The modular low noise sliding door device, characterized in that the door panel is opened and closed by the electric low noise door opening and closing unit according to claim 1.

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