KR102453024B1 - Two door type hinged door including damping device - Google Patents

Abstract

The present invention relates to a hinged door in which the right door is opened at the same time as the left door is opened. When the left door is opened, the upper left door shaft coupled to the upper edge surface of the left door is rotated, and the left upper door shaft and the right a gear unit in which the upper door shaft protrudes and extends, and a damping device connected to the gear unit reduces rotation of the left door and the right door so that the rotation of the left door and the right door is reduced; An object of the present invention is to provide a simultaneous opening/closing hinged door having a damping device that is easy to assemble and construct on site.
This has the effect of providing user convenience by opening and closing the door on one side by pushing or pulling the door on the other side to open and close in the same direction.
In addition, the damping means formed on the upper part of the one-side door has an effect of providing a buffering effect by slowly rotating the rotation shaft of the one-side door.
In addition, two damping rods provided in the damping device are formed in the form of a spring or a hydraulic shock absorber to perform a forward and backward motion, thereby providing a more stable and durable double-door opening/closing type swinging door including a damping means.

Description

Simultaneous opening/closing type hinged door with damping device for easy assembly and on-site construction {TWO DOOR TYPE HINGED DOOR INCLUDING DAMPING DEVICE}

The present invention relates to a simultaneous opening/closing casement door having a damping device that is easy to assemble and construct on-site. Specifically, the opening/closing type casement door in which each door shaft is rotatably installed on both left and right sides of an upper frame is linked with each other to open and close at the same time It relates to a simultaneous opening/closing type hinged door that has a damping means that exhibits a buffering effect by slowly rotating the rotating shaft of the door, and that is easy to assemble and construct with the door in the field.

In general, in buildings, such as houses, offices, shops, department stores, etc., an entrance door is installed to separate the interior from the exterior or to partition the interior space. As such a door for entry and exit, a sliding door with good airtightness, easy entry and exit, and convenient opening and closing is mainly used.

These current mass-produced products apply only simple dampers using high hardness polyurethane and general molds, and are not provided with springs or buffer members, so they have a structure that is physically disadvantageous in terms of not being able to effectively reduce the final collision speed when opening and closing the door. have

In fact, a total of 8936 door collision accidents received from the Korea Consumer Agency between 2014 and 2018 occurred very frequently. Recently, in order to fundamentally prevent such door collision accidents, “Standards” and mandatory installation of door collision prevention devices have been implemented so far, but the number of cases where such prevention devices are not installed at all or are arbitrarily removed is increasing because these prevention devices are not aesthetically pleasing.

In addition, the double-door type hinged door according to the prior art has a structure in which a pair of doors are opened and closed independently, so that a user's fingers are caught between the pair of doors carelessly or accidentally in the process of opening the door. There was a problem with safety accidents.

Republic of Korea Patent Publication No. 10-2008-0072600 Republic of Korea Utility Model Registration Notice No. 20-0472079 Republic of Korea Patent Registration No. 10-1914225

The present invention has been devised in view of the above problems, and the present invention is to provide convenience formed by opening and closing the other side door that is linked by pushing or pulling the left door or the right door to open and close together in the same direction.

In addition. An object of the present invention is to provide a cushioning effect by slowly rotating the rotation shaft of one side door by a damping device formed on the upper part of the left door or the right door.

In addition, the present invention is formed in the form of a hydraulic shock absorber or elastic spring provided in two damping rods provided in the damping device and performs a forward and backward operation to provide a double-door opening/closing type hinged door including a more stable and durable damping means. have.

In addition, it is to provide a simultaneous opening and closing type hinged door that is easy to assemble and construct with the door in the field.

The present invention is a means for solving the above problems. The present invention is a case in which the right door is opened simultaneously with the opening of the left door. When the left door is opened, the left side coupled to the upper edge surface of the left door the upper door shaft rotates, the gear unit in which the upper left door shaft and the upper right door shaft protrude are operated, and the rotation of the left door and the right door is reduced and buffered by a damping device connected to the gear unit; An object of the present invention is to provide a simultaneous opening and closing type swing door having a damping device that can be easily assembled and constructed on site.

As described above, the present invention has an effect of providing user convenience by opening and closing one side door by pushing or pulling the other side door interlocked to open and close together in the same direction.

In addition, the damping means formed on the upper part of the one-side door has an effect of providing a buffering effect by slowly rotating the rotation shaft of the one-side door.

In addition, the present invention provides an effect of providing a double-door opening/closing type hinged door including two damping rods provided in the damping device in the form of a spring or hydraulic shock absorber to perform a forward/backward operation to provide a more stable and durable interlocking opening/closing and damping means there is

In addition, by forming the upper frame in which the damping device and the gear unit are built-in to be mounted on the upper surface of the door, it is easy to assemble and work in the field, thereby increasing productivity.

1 is a schematic view showing a simultaneous opening and closing type swing door having a damping device that is easy to assemble and construct on site according to a first embodiment of the present invention;
2 is a schematic view showing a simultaneous opening and closing type swing door having a damping device that is easy to assemble and on-site construction according to a second embodiment of the present invention;
3 is a schematic diagram showing a simultaneous opening and closing type swing door having a damping device that is easy to assemble and construct on site according to a third embodiment of the present invention;
4 is a schematic view showing a damping device for a simultaneous opening and closing type swing door having a damping device that is easy to assemble and on-site construction according to the present invention;
5 is a schematic diagram showing the opening and closing state of the simultaneous opening and closing type swing door having a damping device that is easy to assemble and on-site construction of the present invention;
6 is a schematic view showing the upper frame of the simultaneous opening and closing type swinging door having a damping device that is easy to assemble and on-site construction according to the present invention;
7 is a schematic view showing a three-dimensional view of the upper frame of the simultaneous opening and closing type swing door having a damping device that is easy to assemble and on-site construction according to the present invention;

Objects, configurations, effects, and various configurations of the present invention described in this specification are intended to form a smooth understanding through the detailed contents for carrying out the invention related to the accompanying drawings.

In addition, the specific content for carrying out the present invention aims to embody and define the scope of rights according to the applicant's invention in detail, so that the idea of the present invention is sufficiently conveyed to those skilled in the art. will be explained for

In addition, it was written in consideration of the fact that readers with knowledge in the relevant field can recognize the purpose, configuration, and effect of the invention without specific content for carrying out the invention.

In addition, it should be noted in advance that the content that is commonly known in describing the invention and that is recognized as the content according to the commonly used technology that is not significantly related to the invention is not described in order to avoid confusion in describing the present invention. .

Looking at three embodiments according to the present invention,

In the case where the right door 50 is opened simultaneously with the opening of the left door 40,

When the left door 40 is opened,

In the first embodiment, the upper left door shaft 25 coupled to the upper edge surface of the left door 40 is rotated, and the left upper door shaft 25 and the right upper door shaft 35 are protruded and extended. The gear unit 130 is operated, and the damping device 10 connected to the upper part of the gear unit 130 is operated, or

In the second embodiment, the left upper door shaft 25 coupled to the upper edge surface of the left door 40 is rotated, and the left upper door shaft 25 and the right upper door shaft 35 are protruded and extended. At the same time as the gear unit 130 is operated, the damping device 10 connected to the upper left door shaft 25 inside the gear unit 130 is operated, or

As a third embodiment, the left upper door shaft 25 coupled to the upper edge surface of the left door 40 is rotated, and the left upper door shaft 25 and the right upper door shaft 35 are protruded and extended. Among the three embodiments in which the gear unit 130 is operated, and the damping device 10 connected to the upper right door shaft 35 is operated inside the gear unit 130 ,

Choose one,

so that the rotation of the left door 40 and the right door 50 is reduced and buffered; It relates to a simultaneous opening and closing type casement door having a damping device that is easy to assemble and construct on site.

In addition, the upper left door shaft 25 coupled to the upper edge surface of the left door 40 is rotated to operate the gear unit 130,

The gear unit 130 is

The second left shaft 24 connected to the upper left door shaft 25 is rotated, and the first left shaft 22 is rotated by the connecting rod 23 connected to the second left shaft 24, and the The left gear 20 connected to the first left shaft 22 rotates,

The left gear 20 and the right gear 30 connected to each other are rotated, the first right shaft 32 installed under the right gear 30 is rotated, and the first right shaft 32 is rotated. The second right shaft 34 interconnected by the connected connecting rod 33 is operated to rotate,

The upper right door shaft 35 connected to the second right shaft 34 and coupled to the upper edge surface of the right door 50 is rotated to open the right door 50 .

In addition,

The damping means of the damping device 10 is

being chosen

In the first embodiment, the damping shaft 5 connected to the rotation shaft of the left gear 20 is formed to protrude from the inside and the lower end of the damping device 10;

In the second embodiment, the damping shaft (5) connected to the upper left door shaft (25) is formed to protrude from the inside and the lower end of the damping device (10);

In the third embodiment, the damping shaft (5) connected to the upper right door shaft (35) is formed to protrude from the inside and the lower end of the damping device (10);

An upper protruding eccentric cam 1 and a lower protruding eccentric cam 2 are respectively formed on the damping shaft 5 in the damping device 10, and the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 ) by providing a left damping rod part 3 and a right damping rod part 6 that are closely pressed in correspondence with each other,

When the damping shaft 5 is rotated, the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are rotated. This is done so that the rotational force of the damping shaft 5 is reduced and buffered by the contact pressure.

In addition, the damping means of the damping device 10 is

the damping shaft (5) connected to the rotation shaft of the left gear (20) is formed to protrude from the inside and the lower end of the damping device (10);

An upper protruding eccentric cam 1 and a lower protruding eccentric cam 2 are respectively formed on the damping shaft 5 in the damping device 10, and the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 ) by providing a left damping rod part 3 and a right damping rod part 6 that are closely pressed in correspondence with each other,

When the damping shaft 5 is rotated, the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are rotated. This is done so that the rotational force of the damping shaft 5 is reduced and buffered by the contact pressure.

In addition, when the connecting rod 23 is a chain, the outer shape of the first left shaft 22 , the second left shaft 24 , the first right shaft 32 , and the second right shaft 34 is a sprocket. , in the case of a belt, with a belt pulley; it will be done

In addition, the left damping rod part 3 and the right damping rod part 6 are formed of a hydraulic shock absorber or an elastic spring, so that the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are in close contact with each other with a constant pressure. to be; it will be done

In addition, the gear unit 130 and the damping device 10 are formed as one unit built together in the upper frame 100, and the upper left door shaft 25 and the upper right are located on the lower end surface of the unit. The door shaft 35 is formed to protrude and extend,
When assembling, it is coupled to the upper surfaces of the left door 40 and the right door 50 corresponding to the left upper door shaft 25 and the right upper door shaft 35, respectively, so that they can be easily assembled.

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Hereinafter, with reference to FIGS. 1 to 7, a simultaneous opening and closing type hinged door having a damping device for easy assembly and on-site construction according to a preferred embodiment of the present invention will be described in detail.

The present invention relates to a closing door that opens and closes the left door (40) and the right door (50) opens at the same time.

Among the three embodiments, the first embodiment shown in FIG. 1 will be described in detail.

When the user pushes the left door 40 to open it, the left upper door shaft 25 coupled to the groove formed in the upper edge surface of the left door 40 is rotated,

At this time, the gear unit 130 in which the upper left door shaft 25 and the upper right door shaft 35 are protruded is operated, and the damping device 10 connected to the upper part of the gear unit 130 is also simultaneously operated. As a result, the upper right door shaft 35 protruding from the right side of the gear unit 130 rotates, and as shown in FIG. 5 , the right door 50 is moved to the left door 40. It opens and closes in the same way as the opening and closing direction of

so that the rotation of the left door 40 and the right door 50 respectively connected thereto is reduced and buffered; 5, the left door 40 and the right door 50 are opened, and when a user passes, each door is slowly closed by the operation of the gear unit 130 and the damping device 10, It is to bring the safety of the user and the cushioning effect of the door.

In addition, when the second embodiment shown in Fig. 2 is described,

The upper left door shaft 25 coupled to the upper edge surface of the left door 40 rotates, and the upper left door shaft 25 and the right upper door shaft 35 protrude and extend the gear unit 130. is operated and the damping device 10 connected to the upper left door shaft 25 inside the gear unit 130 is operated.

The rotation of the upper left door shaft 25 is reduced by the damping device 10, and the rotation of the upper right door shaft 35 connected to the other side of the gear unit 130 is also reduced by the decrease in rotation. Therefore, even if the user suddenly opens or closes the door, it is responsible for the buffer function of opening and closing the door.

In addition, when the third embodiment shown in Fig. 3 is described,

The upper left door shaft 25 coupled to the upper edge surface of the left door 40 rotates, and the upper left door shaft 25 and the right upper door shaft 35 protrude and extend the gear unit 130. Simultaneously with the operation of the damping device 10 connected to the upper right door shaft 35 inside the gear unit 130 is operated.

The rotation of the upper left door shaft 25 is reduced by the damping device 10, and the rotation of the upper right door shaft 35 connected to the other side of the gear unit 130 is also reduced by the decrease in rotation. Therefore, even if the user suddenly opens or closes the door, it is responsible for the buffer function of opening and closing the door.

In addition, the operation configuration in the gear unit 130 of the present invention will be described in detail as follows.

When the gear unit 130 shown in FIGS. 1 to 3 is described in detail,

The upper left door shaft 25 coupled to the upper edge surface of the left door 40 is rotated, and the gear unit 130 is operated.

The gear unit 130 is

The second left shaft 24 connected to the upper left door shaft 25 is rotated, and the first left shaft 22 is rotated by the connecting rod 23 connected to the second left shaft 24, and the The left gear 20 connected to the first left shaft 22 rotates,

The left gear 20 and the right gear 30 connected to each other are rotated, the first right shaft 32 installed under the right gear 30 is rotated, and the first right shaft 32 is rotated. The second right shaft 34 interconnected by the connected connecting rod 33 is operated to rotate,

At this time, the upper right door shaft 35 connected to the second right shaft 34 is rotated, and the right upper door shaft 35 coupled to the groove formed in the upper edge surface of the right door 50 is rotated. This is done so that the right door 50 is opened.

As shown in Figure 4,

The damping means of the damping device 10 is

The damping shaft 5 connected to the rotation shaft of the left gear 20 is formed to protrude from the inside and the lower end of the damping device 10 .

The damping shaft 5 protrudes and extends downward through the inside of the damping device 10 , and the damping shaft 5 extending in the lower portion is coupled to the center of the left gear 20 , and the left gear (20), or is coupled to the rotation shaft of the left gear (20) is rotated together with the left gear (20), which is a well-known configuration widely used in the coupling relationship of the mechanical components.

When the components formed in the damping device 10 are described in detail,

The damping shaft (5) has an upper protruding eccentric cam (1) and a lower protruding eccentric cam (2), which form separate upper protruding eccentric cams (1) and lower protruding eccentric cams (2). It can be attached to the damping shaft 5, or can be integrally formed when the damping shaft 5 is machined.

The upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are eccentric in the axial direction while rotating. This is to provide a left damping rod part 3 and a right damping rod part 6 that are pressed.

Here, when the damping shaft 5 is rotated, the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are rotated, so the left damping rod part 3 and the right damping rod part 6 corresponding thereto ) so that the rotational force of the damping shaft 5 is reduced and buffered by the close contact pressure.

The configuration in close contact with the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 at the ends of the left damping rod part 3 and the right damping rod part 6 is a spherical bearing or a circular roller, etc. Thus, by the rotation of the eccentric cam, it is driven back and forth to the left or right while being in smooth contact, and the rotation of the damping shaft 5 is reduced to buffer it. Due to this, when the left and right doors are opened and the user passes, the left and right doors are gradually closed.

In addition, when the connecting rod 23 is a chain, the outer shape of the first left shaft 22, the second left shaft 24, the first right shaft 32 and the second right shaft 34 is a sprocket, In the case of a belt, with a belt pulley; It is made, and in addition to the configuration described above, it is a configuration that can selectively apply configurations widely used in the field of machine rotation.

In addition, the left damping rod part 3 and the right damping rod part 6 are formed of a hydraulic shock absorber or an elastic spring, so that the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are in close contact with each other with a constant pressure. to be; it will be done

In addition, as shown in FIGS. 6 and 7 , the gear unit 130 and the damping device 10 are formed as one unit for the convenience and speed of assembly or construction for the finished product of the door, so that the upper frame 100 ), and is characterized in that it is integrally formed as one unit, and the upper left door shaft 25 and the upper right door shaft 35 are formed to protrude and extend on the lower surface of the unit.

The first embodiment is mounted on the upper left gear 20 or the right gear 30, the second embodiment is connected to the upper left door shaft 25, the third embodiment is the upper right The door shaft 35 is connected and mounted.

Since the upper upper door shaft 25 and the right upper door shaft 35 protrude from the left and right sides of the upper frame 100, the upper portions of the left door 40 and the right door 50 formed corresponding thereto are formed. It is made so that it can be easily assembled by being coupled to the coupling groove of the surface.

A left frame 110 and a right frame 110 are attached to the left and right sides of the outermost side of the upper frame 100 to form a door frame.

The specific contents and the configuration shown in the drawings for carrying out the invention described in this specification are only an embodiment of the present invention and do not include all the configurations, effects, and objects of the present invention, so at the time of the present application, the present invention It should be understood that there may be various modifications that can be substituted for the .

1: Top protrusion eccentric cam
2: Bottom protrusion eccentric cam
3: Left damping rod part
5: damping shaft
6: Right damping rod part
10: damping device
20: left gear
22: first left axis
23: connecting rod
24: second left axis
25: upper left door shaft
30: right gear
32: first right axis
33: connecting rod
34: second right axis
35: upper right door shaft
40: left door
50: right door
100: upper frame
110: left and right frame
130: gear unit

Claims (6)

In the case where the right door 50 is opened simultaneously with the opening of the left door 40,
When the left door 40 is opened,
The upper left door shaft 25 coupled to the upper edge surface of the left door 40 is rotated, and the gear unit 130 from which the left upper door shaft 25 and the right upper door shaft 35 are protruded is formed. is operated, and the damping device 10 connected to the upper part of the gear unit 130 is operated;
The upper left door shaft 25 coupled to the upper edge surface of the left door 40 is rotated to operate the gear unit 130,
The gear unit 130 is
The second left shaft 24 connected to the upper left door shaft 25 is rotated, and the first left shaft 22 is rotated by the connecting rod 23 connected to the second left shaft 24, and the The left gear 20 connected to the first left shaft 22 rotates,
The left gear 20 and the right gear 30 connected to each other are rotated, the first right shaft 32 installed under the right gear 30 is rotated, and the first right shaft 32 is rotated. The second right shaft 34 interconnected by the connected connecting rod 33 is operated to rotate,
connected to the second right shaft (34) and coupled to the upper edge surface of the right door (50) by rotating the upper right door shaft (35) to open the right door (50);
The damping means of the damping device 10 is
a damping shaft 5 connected to the rotation shaft of the left gear 20 is formed to protrude from the inside and the lower end of the damping device 10;
An upper protruding eccentric cam 1 and a lower protruding eccentric cam 2 are respectively formed on the damping shaft 5 in the damping device 10, and the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 ) by providing a left damping rod part 3 and a right damping rod part 6 that are closely pressed in correspondence with each other,
When the damping shaft 5 is rotated, the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are rotated. The rotational force of the damping shaft 5 is reduced by the contact pressure so as to be buffered;
The left damping rod part 3 and the right damping rod part 6 are formed of a hydraulic shock absorber or an elastic spring so that the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are in close contact with each other with a predetermined pressure. support;
The gear unit 130 and the damping device 10 are formed as one unit built together in the upper frame 100, and the upper left door shaft 25 and the right upper door shaft are located on the lower surface of the unit. (35) is formed to protrude and extend,
At the time of assembling, it is made to be easily assembled by being coupled to the upper surfaces of the left door 40 and the right door 50 corresponding to the left upper door shaft 25 and the right upper door shaft 35, respectively, so that the assembly and site Simultaneous opening and closing type sliding door with damping device that is easy to install.
In the case where the right door 50 is opened simultaneously with the opening of the left door 40,
When the left door 40 is opened,
The upper left door shaft 25 coupled to the upper edge surface of the left door 40 is rotated, and the gear unit 130 from which the left upper door shaft 25 and the right upper door shaft 35 are protruded is formed. Simultaneously with the operation, the damping device 10 connected to the upper left door shaft 25 inside the gear unit 130 is operated;
The upper left door shaft 25 coupled to the upper edge surface of the left door 40 is rotated to operate the gear unit 130,
The gear unit 130 is
The second left shaft 24 connected to the upper left door shaft 25 is rotated, and the first left shaft 22 is rotated by the connecting rod 23 connected to the second left shaft 24, and the The left gear 20 connected to the first left shaft 22 rotates,
The left gear 20 and the right gear 30 connected to each other are rotated, the first right shaft 32 installed under the right gear 30 is rotated, and the first right shaft 32 is rotated. The second right shaft 34 interconnected by the connected connecting rod 33 is operated to rotate,
connected to the second right shaft (34) and coupled to the upper edge surface of the right door (50) by rotating the upper right door shaft (35) to open the right door (50);
The damping means of the damping device 10 is
a damping shaft (5) connected to the upper left door shaft (25) is formed to protrude from the inside and the lower end of the damping device (10);
An upper protruding eccentric cam 1 and a lower protruding eccentric cam 2 are respectively formed on the damping shaft 5 in the damping device 10, and the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 ) by providing a left damping rod part 3 and a right damping rod part 6 that are closely pressed in correspondence with each other,
When the damping shaft 5 is rotated, the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are rotated. so that the rotational force of the damping shaft 5 is reduced and buffered by the contact pressure;
The left damping rod part 3 and the right damping rod part 6 are formed of a hydraulic shock absorber or an elastic spring so that the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are in close contact with each other with a predetermined pressure; made;
The gear unit 130 and the damping device 10 are formed as one unit built together in the upper frame 100, and the upper left door shaft 25 and the right upper door shaft are located on the lower surface of the unit. (35) is formed so as to protrude;
When assembling, it is coupled to the upper surfaces of the left door 40 and the right door 50 corresponding to the left upper door shaft 25 and the right upper door shaft 35, respectively, so as to be easily assembled; characterized in that Simultaneous opening and closing type hinged door with damping device for easy assembly and on-site construction. In the case where the right door 50 is opened simultaneously with the opening of the left door 40,
When the left door 40 is opened,
The upper left door shaft 25 coupled to the upper edge surface of the left door 40 is rotated, and the gear unit 130 from which the left upper door shaft 25 and the right upper door shaft 35 are protruded is formed. is operated, and the damping device 10 connected to the upper right door shaft 35 is operated inside the gear unit 130;
The upper left door shaft 25 coupled to the upper edge surface of the left door 40 is rotated to operate the gear unit 130,
The gear unit 130 is
The second left shaft 24 connected to the upper left door shaft 25 is rotated, and the first left shaft 22 is rotated by the connecting rod 23 connected to the second left shaft 24, and the The left gear 20 connected to the first left shaft 22 rotates,
The left gear 20 and the right gear 30 connected to each other are rotated, the first right shaft 32 installed under the right gear 30 is rotated, and the first right shaft 32 is rotated. The second right shaft 34 interconnected by the connected connecting rod 33 is operated to rotate,
a right upper door shaft 35 connected to the second right shaft 34 and coupled to an upper edge surface of the right door 50 is rotated to open the right door 50;
The damping means of the damping device 10 is
a damping shaft (5) connected to the upper right door shaft (35) is formed to protrude from the inside and the lower end of the damping device (10);
An upper protruding eccentric cam 1 and a lower protruding eccentric cam 2 are respectively formed on the damping shaft 5 in the damping device 10, and the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 ) by providing a left damping rod part 3 and a right damping rod part 6 that are closely pressed in correspondence with each other,
When the damping shaft 5 is rotated, the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are rotated. It is made so that the rotational force of the damping shaft 5 is reduced and buffered by the contact pressure;
The left damping rod part 3 and the right damping rod part 6 are formed of a hydraulic shock absorber or an elastic spring so that the upper protruding eccentric cam 1 and the lower protruding eccentric cam 2 are in close contact with each other with a predetermined pressure. lose;
The gear unit 130 and the damping device 10 are formed as one unit built together in the upper frame 100, and the upper left door shaft 25 and the right upper door shaft are located on the lower surface of the unit. (35) is formed so as to protrude;
When assembling, it is coupled to the upper surfaces of the left door 40 and the right door 50 corresponding to the left upper door shaft 25 and the right upper door shaft 35, respectively, so as to be easily assembled; characterized in that Simultaneous opening and closing type hinged door with damping device for easy assembly and on-site construction.




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