KR200180773Y1 - Automatic door - Google Patents

Abstract

The present disclosure relates to an automatic door opening and closing device for allowing both doors to be opened and closed simultaneously according to each rotation direction of one forward and reverse motor, and at the same time, a sensor is installed at a contact portion between each door and a lower end of each door to promote safety.

To this end, the present invention is a rack coupled to the upper portion of each door to be opened and closed in both directions, a drive side pinion and driven pinion for driving the rack, a drive pulley formed coaxially with the drive side pinion, and driven side pinion The drive unit is composed of a relay gear coupled to and a gear, a driven pulley coaxially formed with the relay gear, and a wire rope coupled between the driving pulley and the driven pulley. Rails coupled to the upper positions of the doors of the mounting plate, brackets respectively formed on the left and right sides when viewed from the top of each door, and rollers mounted on the front ends of the brackets and coupled to the rails so as to enable rolling in the direction of opening and closing of the door. It consists of a guide part, which transmits power to the automatic door by a rack-pinion method and a wire rope method. The doors that make up the automatic doors are opened and closed by rolling contact with rollers and rails, so that the large power transfer force by the rack-pinion method and the minimum contact resistance due to the rolling contact between rollers and rails can be utilized. Even if it is large, there is a useful effect that can be opened and closed each door smoothly.

Description

Automatic door opener

The present invention relates to an automatic door opening and closing device, and more specifically, both doors are simultaneously opened and closed according to each rotation direction of one forward and reverse motor, and at the same time, a sensor is installed at the contact portion between each door and the lower end of each door to promote safety. An automatic door opening and closing device is provided.

As is well known, automatic doors are employed in department stores, various public places, large buildings, and the like, and are automatically applied to large factories by detecting a sensor by the upper sensor when a visitor stands in front of the door. .

Such an automatic door includes the apparatus shown in FIG. 1, which will be described as an example of the automatic door according to the prior art.

The automatic door is installed in the rectangular mounting plate 100, the drive motor 101 capable of forward and reverse rotation and the reducer 102 to reduce the rotational force thereof is installed, the visitor close to the door 108 on one side of the mounting plate 100 The control box 103 for controlling the driving motor 101 is installed in accordance with the detection signal by the sensor for sensing, and the chain (on the guide pulley 104 installed on the other side of the output shaft of the reduction gear 102 and the mounting plate 100). 105 and a belt connected to the wire 106 are mounted, and a hanger 107 fixed to the chain 105 to open and close the door 108 when the belt is driven is fixed to a predetermined position on the upper surface of the door 108.

In addition, a separate bracket 109 is provided at the upper end of the door 108, the bracket 109 is coupled to the engaging groove 110 of the lower side of the mounting plate 100, the sliding opening and closing direction is guided while driving the belt. do.

Reference numeral 111 is a guide groove for supporting the lower end when opening and closing the door 108, 112 is a guide roller.

However, the above-described automatic door has a locking groove 110 below the mounting plate 100 where the bracket 109 of the door 108 is driven by a belt supported between the output shaft of the reducer 102 and the guide pulley 104. Sliding along the sliding contact is increased so that the contact resistance is increased, and accordingly a large tension is applied to the belt, this is because the concentrated load repeatedly acts on the guide pulley 104 repeatedly and easily deforms and breaks, and when opening and closing the door 108 The door 108 is lifted due to the impact of contact with the structure, there is a problem that excessive force is applied to the locking groove 110 is easily worn.

In addition, the automatic door is operated only in one direction, so when applied to the automatic door in both directions, two such devices are required, which requires about twice the installation cost and labor, resulting in an increase in manufacturing cost. there was.

The present invention has been devised to solve this problem. In constructing an automatic door that is bidirectional, the bidirectional door is simultaneously driven as a motor, and each door is slid while contacting the rolling clouds along the rails. It is an object of the present invention to provide an automatic door opening and closing device to extend the life of the automatic door by minimizing the number.

In another aspect, the lower end of the automatic door to be guided in contact with the cloud so that the automatic door is opened and closed while maintaining the vertical.

In another aspect, the purpose is to increase the safety and reliability by providing a sensor in the contact portion and the lower portion of each door.

1 is a block diagram of an automatic door opening and closing device according to the prior art.

Figure 2 is an overall configuration of the automatic door opening and closing device according to the present invention.

3 is a detailed view of the driving unit of the automatic door opening and closing apparatus according to the present invention,

Figure 4 is a detailed view of the lower end of the automatic door according to the present invention,

5 is a detailed view of the guide of the lower contact portion of the automatic door according to the present invention,

(a) is a plan view.

(b) is a side view.

<Description of the code | symbol about the principal part of drawing>

1,2: door 3,19,20: sensor

4: motor 5: mounting plate

6,6 ': Lek 7,7': Pinion

8,8 ': pulley 9: wire rope

10,17 Bracket 11,15 Rail

12,16,18: roller 13,14: limit switch

21: relay gear

Automatic door opening and closing device according to the present invention for achieving this object, a sensor for detecting a visitor, each door that is opened and closed in both directions depending on whether the sensor detects the visitor, and a motor for providing the power required to open and close the door; Is provided with an installation plate is installed the motor,

A rack coupled to each of the upper doors, a drive side pinion and a driven pinion for driving the rack, a drive pulley formed coaxially with the drive side pinion, a relay gear coupled to the driven side pinion, A driven pulley coaxially formed with a relay gear, a wire coupled between the driving pulley and the driven pulley to transfer the driving force of the motor connected to the driving pulley to the driven pulley and the driven shaft pinion through the relay gear. Rope drive; Consists of a length of two or more times the sum of the length of each door is coupled to the upper position of each door of the mounting plate, the cross-sectional shape is a 'c' shape of the rail whose opening faces forward, the front of each door top Bore each formed on the left and right sides of the bore, the guide portion is mounted to the front end of the bracket and the roller is coupled to the rail to guide the opening and closing direction of the door; And at least one limit switch provided on the rail to limit the opening and closing length of each door.

Hereinafter, the present invention according to the accompanying drawings and preferred embodiments in detail as follows.

Figure 2 is an overall configuration diagram of the automatic door opening and closing device according to the present invention, Figure 3 is a detailed view of the driving unit of the automatic door opening and closing device according to the present invention, Figure 4 is a detailed view of the lower end of the automatic door according to the present invention, Figure 5 is a detailed view of the guide of the lower contact portion of the automatic door according to the present invention.

Automatic door opening and closing device according to the present invention has a door (1) (2) that is basically opened and closed in both directions, as shown in Figures 2 and 3, and the main sensor (3) located on the upper door to detect visitors On the upper part of the door, the motor 4 driven by the command of the control unit, not shown in the drawing, and the mounting plate 5 on which the motor 4 is installed are mounted on the upper part of the door according to whether the visitor is detected through the main sensor 3. It is provided.

Each door (1) (2) is opened and closed in the opposite direction by receiving a driving force from one motor (4) opening and closing in both directions, respectively, the upper portion of each door (1) (2) 6 ') is provided in the horizontal direction, and the driving side pinion 7 and the driven side pinion 7' for driving the racks 6 and 6 'are formed by the opening and closing lengths of the doors 1 and 2, respectively. Spaced apart and gear-coupled to the upper portion of each of the rack (6) (6 '), the driving pulley (8) is formed coaxially with the driving side pinion (7) and the driven pulley (corresponding to the driving pulley (8) ( 8 ') is formed around the driven pinion 7', and the relay gear 21 for transmitting the driving force of the motor 4 transmitted to the driven pulley 8 'to the driven side pinion 7' is driven driven. It is formed coaxially with 8 'and gear-coupled with the driven pinion 7'.

Further, a wire rope 9 is connected between the drive pulley 8 and the driven pulley 8 'to drive the driving force of the motor 4 connected to the drive pulley 8, the driven pulley 8' and the relay gear. Via 21 to the driven pinion 7 '.

At this time, each door (1) (2) is guided in the opening and closing direction while rolling contact in the rail 11 having a predetermined shape, the rail 11 has a length of more than twice the length of both doors, the cross section 'c' It becomes a shape and its opening part faces forward and is installed in the mounting plate 5 in the horizontal direction.

In addition, brackets 10 are formed on the left and right sides of the upper doors 1 and 2, respectively, and rollers 12 are fitted to the rails 11 at the front ends of the brackets 10, respectively. In order to limit the opening and closing lengths of the doors 1 and 2, the opening detection limit switch 13 and the closing detection limit switch 14 are provided at appropriate positions on the rail 11.

On the other hand, in order to open and close each door (1) (2) while maintaining the vertical need a structure that can guide the lower end of each door (1) (2), as shown in Figures 4 and 5 A rail 15 having an 'H'-shaped cross section is fitted to the lower end of the doors 1 and 2, and the rollers 16 are horizontally connected by the set bolts to the bottom parts corresponding to both sides of the lower ends of the doors. Is inserted into the 'H' shaped lower space so as to contact the lower end of each door (1), (2) guides, and the bottom corresponding to the bottom contact portion of each door (1), (2) front / rear The brackets 17 are fixed by the set bolts symmetrically, and each of the brackets 17 is provided with two rollers 18 which are in rolling contact with each door 1 and 2 in the horizontal direction, respectively. Guide the contact area of the lower part of (2).

In addition, the contact area of each door (1) (2) and the lower part of each door (1) (2) so that even a short person, such as a child, can be detected without being caught between each door (1) (2) One side is further provided with a touch sensor 19 and an optical sensor 20.

The automatic door opening and closing device according to the present invention configured as described above operates as follows.

First, when a visitor or object is detected through each sensor, for example, the main sensor 3, the touch sensor 19, and the light sensor 20 while the bidirectional doors 1 and 2 are closed, the detection signal is displayed on the drawing. It is passed to the control unit, not shown.

The control unit receives this signal and generates a motor drive signal. The motor 4 starts driving by this signal. When the motor 4 rotates counterclockwise, the rotational force is driven on the drive side pinion 7. And the driving pulley 8, the driving side pinion (7) pushes the rack 6 formed in the right door in the right direction to open the right door (2).

In addition, the drive force of the motor 4 is transmitted to the driven pulley 8 'by the wire rope 9 connected to the drive pulley 8, and is a relay gear coaxially formed with the driven pulley 8'. The driving force of the motor 4 is transmitted to the driven pinion 7 'which is finally geared with the relay gear 21, opposite to the rotational direction thereof, and is formed on the left door 1, Since the rack 6 'is pushed to the left, the outer door 1 is also opened.

And, the opening length of each door (1) (2) is limited by each opening detection limit switch 13 provided on both sides of the rail (11) to stop the driving of the motor (4), even in this state each sensor (3) (19) (20) continuously performs the sensing operation. When no more visitors or objects are detected, the motor (4) is driven clockwise to close each door (1) (2). . The closing action of each door (1) (2) is opposite to the opening action, and when each door (1) (2) is completely closed, the closing detection limit switch 14 closes each door (1) (2). By detecting the state, the control unit stops the driving of the motor 4.

At this time, each of the brackets (10) formed on the upper left and right of each door (1) (2) is equipped with a roller 12, the roller 12 is coupled to the rail 11, so each door (1) It is apparent that the roller 12 is guided in rolling contact with the rail 11 when the door 12 is opened and closed. As such, the doors 1 and 2 are guided in rolling contact with the rail 11, thereby providing contact resistance. Is lowered to the minimum, and the power transmission power is increased by the rack-pinion method, so that even when the weight of the door is very heavy, the doors 1 and 2 can be opened and closed smoothly.

In addition, in opening and closing the automatic doors to ensure that each door (1) (2) to open and close while maintaining the vertical is very important in terms of safety and maintenance of life, as described above, the lower end of each door (1) (2) 'H 'H' shape of the roller 16 is inserted into the rail (15) having a cross-sectional cross-section and horizontally connected by a set bolt on the bottom portion corresponding to both sides of the lower end of each door (1), (2) Since it is fitted in the space so as to be in contact with the clouds, when the doors 1 and 2 are opened and closed, both sides of the lower ends of the doors 1 and 2 can be guided in rolling contact with the rollers 16, so that each door 1 The vertical maintenance of (2), as well as the advantage of being able to open and close operation with a relatively low contact resistance, the bottom portion corresponding to the contact portion of the lower end of each door (1) (2) is set symmetrically front / rear The brackets 17 are fixed by bolts, and two brackets 17 are in contact with each other on the sides of the doors 1 and 2, respectively. Since the rollers 18 are formed respectively, the central portions of the doors 1 and 2 can be guided while rolling in contact with the rollers 18, so that the opening and closing operation can be performed with a relatively low contact resistance. Of course, when looking at the entire door, each door (1) (2) can be opened and closed smoothly while maintaining the vertical without distortion.

On the other hand, the most important thing in opening and closing the automatic door is safety in use, and the automatic door is operated by being sandwiched between the doors (1) and (2) which are opened and closed in both directions, but the automatic door is not detected because the child is not able to detect a small child or a low object It is well known that this failure to open and close frequently occurs.

By the way, in the automatic door opening and closing device according to the present invention is provided with a touch sensor 19 on the contact portion between each door (1) (2), if the door is caught between each door (1) (2) during use of the touch sensor ( 19) it is possible to stop the driving of the motor (4) or change the direction of rotation of the motor quickly to sense the safety in use, and the optical sensor 20 on the lower side of each door (1) (2) Since it is equipped with a small child or a low object can be easily detected it is possible to improve the reliability in use.

In addition, since each sensor (3) (19) (20) is always operated regardless of whether the opening and closing operation of each door (1) (2) is completed or performing, it is necessary to perform unnecessary opening and closing operation in using the automatic door. Since the frequency is very small, reliability can be improved and power consumption can be greatly reduced.

As described above, the present invention transmits power to the automatic door by the rack-pinion method and the wire rope method, and the doors constituting the automatic door are opened and closed while rolling in contact with the rollers and the rails. Power transmission and minimum contact resistance due to rolling contact between roller and rail can be utilized, so each door can be opened and closed smoothly even when the weight of the door is very large, and the lower end of each door can also be guided by rolling contact with the roller. Each door can therefore be operated vertically, extending the life of the device. In addition, since the touch sensor and the optical sensor are provided in the contact portion and the lower portion of each door, there is a useful effect to improve the safety and reliability in use.

Claims (3)

Sensor 3 for detecting a visitor, each door (1) (2) opening and closing in both directions depending on whether the sensor 3 is detected, and the power required for opening and closing the door (1) (2) In the automatic door opening and closing device provided with a motor (4) for providing a, and the mounting plate (5) on which the motor (4) is installed, Drives 6 and 6 'coupled to upper portions of the doors 1 and 2, respectively, drive side pinion 7 and driven pinion 7' for driving the racks 6 and 6 '. ), A drive pulley 8 formed coaxially with the drive side pinion 7, a relay gear 21 geared with the driven side pinion 7 ′, and coaxially formed with the relay gear 21. The driven pulley 8 ', which is coupled between the drive pulley 8 and the driven pulley 8', and drives the driving force of the motor 4 connected to the drive pulley 8, is driven by the driven pulley 8 '. And a drive portion made of a wire rope 9 for transmitting to the driven side pinion 7 'through the relay gear 21; The rail is composed of two or more lengths of the sum of the lengths of the doors (1) and (2). (11), the bracket (10) formed on the left and right sides of the front of each of the doors (1) and (2), respectively, is mounted on the front end of the bracket (10) and is coupled to the rail (11) in a cloudable manner. A guide part made of a roller 12 for guiding the opening and closing direction of the doors 1 and 2; And Automatic door opening and closing device, characterized in that it comprises at least one limit switch (13) (14) provided on the rail (11) to limit the opening and closing length of each door (1) (2). The method of claim 1, The lower end of each door (1) (2) is fitted with a rail (15) having a cross-section of the 'H' shape, horizontally by a set bolt on the bottom corresponding to both sides of the lower end of each door (1) (2) The roller 16 connected in the direction is inserted into the 'H'-shaped lower space so as to be in contact with the cloud to guide both sides of the lower ends of the doors 1 and 2, and the doors of the doors 1 and 2 The bracket 17 is fixed to the bottom corresponding to the bottom contact by the set bolts symmetrically in the front and rear, and each bracket 17 has two doors in horizontal contact with the doors 1 and 2 in the horizontal direction. Automatic door opening and closing device, characterized in that the roller (18) is formed to guide the lower end of the contact portion of each door (1) (2). The method of claim 1, Sensors 19 and 20 are further provided at contact portions of the doors 1 and 2 and lower sides of the doors 1 and 2, respectively, and are sandwiched between the doors 1 and 2, respectively. Automatic door opening and closing device, characterized in that it is possible to detect even a short person, such as children.