KR101570829B1 - Door Opening/closing Apparatus by Push or Pull on the Handle, and Door using thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing apparatus and a door using the same, and more particularly, to a door opening and closing apparatus and a door using the door opening / The present invention relates to a door opening / closing device including a locking device and a door using the door opening / closing device, as well as a method of easily opening a door by only one step operation. A drive shaft configured to penetrate through the door in the thickness direction of the door and configured to reciprocate in the thickness direction of the door, the drive shaft having a cylindrical or polygonal shape; A latch driving part having a latch on one side and a latch on the other side; A linear latch shaft configured to be disposed on the other side of the latch drive unit so as to intersect the lateral direction of the drive shaft; And a guide rail provided at one side of the drive shaft in the shape of a slant or a line and provided with a latch shaft to provide at least one of driving and projecting of the latch. According to this, there is an effect that the door can be opened only by a simple operation of one step of pushing or pulling, without grasping or grasping the knob of the door.

Description

(Door Opening / Closing Apparatus by Push or Pull on the Handle, and Door using them)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing apparatus and a door using the same, and more particularly, to a door opening and closing apparatus and a door using the door opening / The present invention relates to a door opening / closing device including a locking device and a door using the door opening / closing device, as well as a method of easily opening a door by only one step operation.

A generally used door opening / closing device is provided with a handle on both sides of a door that can be rotated by a user in a hand and can be rotated in one direction, and the door opening / closing device is operated in accordance with the rotation of the handle installed on the inside or outside, .

In addition, a generally used door opening / closing device is provided with a door lock button at the center of the end portion of the indoor side handle so as to prevent the outdoor side handle from rotating, thereby preventing intrusion into the indoor side from the outdoor side. In order to release the door lock button, the lock state can be released by rotating the indoor side handle to one side, or by inserting and rotating the key into the key lock provided on the outdoor side handle portion.

However, since the conventional door opening / closing apparatus can mostly open and close the door only by rotating operation in one direction, when the handle is held (step 1), force is applied to the handle (step 2) I had to open the door by opening the door (step 4) with 4 steps. Therefore, there is a problem that opening and closing of the door is difficult in a situation where the use of the hand is inconvenient and the use of the hand is difficult. An example of a user with an uncomfortable hand is a user, a child, a patient, or a disabled person holding an object in both hands. An example of a situation in which the hand is difficult to use is an emergency such as a fire situation.

Japanese Patent Laid-Open No. 2010-159613 attempted to solve this problem by providing a push-pull door lock, but the use of the fastening mechanism was too much and the configuration was so complicated that there was a risk of failure and difficulty in installation, There is a problem that the user has to hold the handle, the accuracy of the door operation is difficult to maintain, and the repeatability of the door operation is low.

As a result, a simple and efficient door opening / closing device is required as a device capable of opening and closing the door with only one step operation by simply pushing or pulling the door without holding or grasping the door handle.

PJ 2010-159613 A KR0378754 20

Accordingly, the present invention has been made to solve the above-described problems.

It is an object of the present invention to provide a door opening / closing device capable of easily opening and closing a door with only one step operation by simply pushing or pulling the door handle without grasping or grasping the door handle, .

Hereinafter, specific means for achieving the object of the present invention will be described.

A first object of the present invention is to provide a door opening / closing device which is installed inside a door and is configured so that opening / closing of the door is determined by protrusion or insertion of a latch, the door opening / closing device comprising: A drive shaft configured to be reciprocatingly movable in a cylindrical or polygonal shape; A latch driver configured to be coupled to one side of the latch and to be coupled to the other side of the driving shaft so as to surround a part of the driving shaft and to be movable in a lateral direction of the driving shaft; A linear latch shaft provided on the other side of the latch driving unit and disposed so as to cross the lateral direction of the driving shaft; And a guide rail which is provided at one side of the drive shaft in a slant or arc shape and in which the latch shaft is seated to provide driving of protrusion or insertion into the latch.

A handle coupled to at least one end of the drive shaft and configured to allow a user to push or pull in a direction of the door thickness; And a rose having a through hole formed in at least one of an outer side surface and an inner side surface of the door and configured to allow the drive shaft to pass therethrough and closely contacting one side of the handle to guide the moving direction of the handle can do.

And one end of which is fixed to one side of the through hole of the rose and the other end is fixed to one side of the handle or one side of the drive shaft to provide an elastic force to the drive shaft.

The drive shaft is configured to be rotatable about an axis of the transverse section, and is configured to be rotatable about a center of a cross section of the drive shaft by a user; And a connecting rod connected to the key bundle and inserted into at least one end of the driving shaft to transmit the rotational force of the key bundle to the driving shaft. When the driving shaft rotates and moves out of the predetermined position, So that the movement can not be performed.

A handle coupled to at least one end of the drive shaft and configured to allow a user to push or pull in a direction of the door thickness; A rose having a through hole formed in at least one of an outer side surface and an inner side surface of the door and configured to allow the drive shaft to pass therethrough and being in close contact with one side of the handle to guide the moving direction of the handle; And a drive shaft rotating part provided at both ends of the drive shaft so that the drive shaft can rotate smoothly and at least a part of the cross section of the drive shaft is formed by a curved line and at least one end of the drive shaft And is inserted into the through hole.

And a latch shaft rotatable portion having a curved outer circumference at least a part of a cross section of the portion so that a portion of the drive shaft contacting the latch shaft can rotate smoothly.

The latch shaft is configured to protrude in a lateral direction of the drive shaft on one side of the drive shaft, and the guide rail is provided on at least one surface of the latch drive unit in a slant or arc shape so that the latch shaft is seated . ≪ / RTI >

A second object of the present invention is to provide a door structure comprising: a plate-shaped door body; An opening / closing device installing hole which is a hole provided at one side of the door main body; A hinge shaft provided on the other side of the door body and configured to be used as a rotary shaft of the door body; And a door opening / closing device according to claim 1 installed in the opening / closing device installation port.

As described above, the present invention has the following effects.

First, according to the embodiment of the present invention, the door can be opened only by a simple operation of one step of pushing or pulling without grasping or grasping the knob of the door. This makes it possible to easily open and close the door by using only a part of the body without using the hand, even in the case of an emergency caused by a fire or a user holding a product in both hands, a child, a patient or a disabled person.

Secondly, according to the embodiment of the present invention, it is easy to fit the door handle into the international standard by the driving shaft of the cylindrical or polygonal columnar shape, and it is advantageous for fastening the handle, and the structure of the locking device is advantageous and simplified.

Third, according to an embodiment of the present invention, since the structure is simple and a separate housing is not required, the manufacturing is easy and the manufacturing cost can be reduced.

Fourthly, according to the embodiment of the present invention, since the handle is not rotated, the shape of the handle can be freely freed from the fixed frame of the circular handle such as the conventional door opening / closing device.

Fifthly, according to one embodiment of the present invention, since there is no plurality of fastening mechanisms and its structure is simple, there is an effect that repairing and replacing work in case of breakage is simple and quick.

Sixth, according to an embodiment of the present invention, when the user opens and closes the door, the user's knob contact surface can be minimized, contributing to the promotion of public health.

Seventh, according to one embodiment of the present invention, there is an effect that the configuration is simple, the locking device is stable, and the repeatability is improved.

Eighth, according to one embodiment of the present invention, since the position of the spring is fixed to the inner and outer roses, the accuracy is maintained even in repeated operation of the door opening / closing apparatus, and the driving failure rate is remarkably reduced.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and, together with the description, And shall not be interpreted.
1 is a perspective view of a door opening / closing apparatus according to an embodiment of the present invention;
2 is an exploded perspective view of a door opening and closing apparatus according to an embodiment of the present invention,
3 is a perspective view of a drive shaft according to a first embodiment of the present invention,
4 is a perspective view of a drive shaft according to a second embodiment of the present invention,
5 is a sectional view showing a closed mode according to an embodiment of the present invention,
6 is a cross-sectional view illustrating a first open mode according to an embodiment of the present invention,
7 is a cross-sectional view illustrating a second open mode according to an embodiment of the present invention,
8 illustrates a front view of a lock mode according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following detailed description of the operation principle of the preferred embodiment of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings. Throughout the specification, when a part is connected to another part, it includes not only a case where it is directly connected but also a case where the other part is indirectly connected with another part in between. In addition, the inclusion of an element does not exclude other elements, but may include other elements, unless specifically stated otherwise.

<Door opening / closing device>

FIG. 1 is a perspective view of a door opening and closing apparatus according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a door opening and closing apparatus according to an embodiment of the present invention. 1 and 2, a door opening / closing apparatus 1 according to an embodiment of the present invention includes a drive shaft 10, a latch drive unit 20, a latch shaft 22, a latch bearing 24, A spring house 26, a latch 200, a rose 30, a handle 40, a coupler 50, and the like.

FIG. 3 is a perspective view of a drive shaft according to a first embodiment of the present invention, and FIG. 4 is a perspective view of a drive shaft according to a second embodiment of the present invention. As shown in FIGS. 3 and 4, the drive shaft 10 may be a cylindrical or polygonal columnar body having a space therein. The columnar body improves the durability of the door opening / closing device 1. The door opening / closing device 1 is easily fitted to the standardized opening / closing device inserting hole in the door, and it is also advantageous in fastening the door handle, Since it can rotate itself, the configuration of the connection block and the key block is advantageous, and the configuration is considerably simplified, thereby improving repeatability and repairability. As the drive shaft 10, the octagonal column body is most preferable. This is because it is close to a circular shape so that it is smooth to rotate around the center of the transverse plane and at the same time, the flat surface of the columnar surface has a flat surface facilitating the seating of the latch shaft 22. [

In addition, the drive shaft 10 serves to drive the protrusion of the latch 200 to the outside of the door or the pulling-in of the latch 200 into the door. When the drive shaft 10 is in the correct position, the latch 200 protrudes out of the door. When the drive shaft 10 is pushed or pulled in the thickness direction of the door, the latch 200 is drawn into the door. This driving is enabled by the guide rails 12.

The guide rail 12 may be formed on one side of the drive shaft 10 in a slant or arc shape to induce the movement of the latch shaft 22. The guide rail 12 may be configured in one direction as shown in FIG. 3, or in both directions as shown in FIG. In the case where the guide rail 12 is formed in one direction, it is only possible to push the user from one side or pull the other side, and when the guide rail 12 is formed in both directions, there is an effect that the user can push or pull in both directions.

The guide rail 12 may protrude from the body of the drive shaft 10 in the direction of movement of the latch 200 or may be configured to be recessed in the direction of movement of the latch 200 on the columnar surface of the drive shaft 10. Or the drive shaft 10 is provided with the latch shaft 22 in the radial direction of the drive shaft 10 and the guide rail 12 having a slant or arc shape on at least one surface of the latch drive portion 20, have. The latch shaft 22 is positioned on the valley of the guide rail 12 so that the latch 200 protrudes outside the door and when the drive shaft 10 moves, Or the latch shaft 22 is positioned on the inclined surface of the arc shape, and the latch 200 is drawn into the inside of the door.

The angle formed by the arc line of the guide rail 12 may be an obtuse angle as the distance from the center axis increases, and an acute angle as the distance from the center axis increases. This is to allow the door to open smoothly when the door is opened and to allow the drive shaft (10) to return quickly to the correct position when an external force is removed from the handle of the door.

Due to the guide rails 12, the longitudinal movement of the drive shaft 10 is naturally converted into a lateral motion by the combination of the latch bearing 24, the latch shaft 22, and the latch driver 20, .

The driving shaft 10 may include a locking projection 13, a connecting hole 14, a driving shaft rotating portion 16, and a latch shaft rotating portion 18. The lock projection 13 is configured to protrude at least one side of the drive shaft 10 by a specific length in relation to the door lock mode. The connecting rod hole 14 is formed in such a manner that the connecting rod 100 is inserted into at least one end of the driving shaft 10 so that the inner key 102 or the key roll 104 rotates together with the driving shaft 10 . The drive shaft rotation portion 16 is a circular cross section provided at both ends of the drive shaft 10 in the lock mode of the door and rotates smoothly in the through holes of the inner and outer roses during rotation of the drive shaft 10 in the lock mode . The latch shaft rotation portion 18 is a circular cross section formed in the valley of the guide rail 12 and minimizes the friction with the latch shaft 22 during rotation of the drive shaft 10 in the lock mode, So that it can rotate smoothly. The outer periphery of the drive shaft rotation part 16 and the outer periphery of the latch shaft rotation part 18 may be entirely curved or at least partially curved. A portion of the latch shaft rotating portion 18 may be formed in a plane to fix the latch shaft 22 in a fixed position of the drive shaft 10. [

2, the latch unit according to an embodiment of the present invention includes a latch drive unit 20, a latch shaft 22, a latch bearing 24, a latch spring house 26, and a latch (not shown) 200).

The latch driving unit 20 may have a U-shape and may have a latch 200 connected to one side and a latch shaft 22 on the other side. The latch driving unit 20 may be configured to partially enclose the outer periphery of the driving shaft 10. Two holes or grooves may be provided which are shaped to fit with the outer periphery of the latch shaft 22 so that the latch shaft 22 can be fixed.

The latch shaft 22 is provided on the other side of the latch driving part 20 and is seated on the guide rail 12. The latch shaft 22 is moved by the movement of the drive shaft 10 to provide a driving force to the latch 200. [

The latch bearing 24 is coupled to enclose the latch shaft 22 to facilitate the movement of the latch shaft 22. [ The latch shaft 22 is inserted into the latch bearing 24 without any separate fastening mechanism and is inserted into two holes or grooves provided in the latch driving portion 20 and connected to the latch driving portion 20. [ In addition, by using a general-purpose component such as a snap ring outside the latch drive portion 20, it is possible to prevent the latch bearing 24 and the latch shaft 22 from being held and released from each other.

The latch spring house 26 is a housing of the latch 200, and may have a U-shaped cross section, and an elastic member may be provided therein. A coil spring or the like may be used as the elastic member provided inside, which may be referred to as a latch spring 28. Since the latch spring 28 is compressed, the latch 200 has an elastic force, and the latch shaft 22 connected to the latch 200 and the latch driver 20 also receives an elastic force in one direction. The latch shaft 22 or the latch bearing 24 is brought into close contact with the body of the drive shaft 10 to prevent rotation of the drive shaft 10 at a predetermined position and can be moved in a state of being in close contact with the guide rail 12. [ .

The latch spring 28 is configured to be an elastic member configured to be pushed from one side of the latch 200 or pulled from the other side of the latch 200 so that the latch shaft 22 is in close contact with the body of the drive shaft 10 .

1 and 2, a door opening / closing device 1 according to an embodiment of the present invention is such that a rose 30 and a knob 40 are male and female, To guide the moving direction of the movable member 40, and to prevent the movable member 40 from coming out of the fixed position.

The rose 30 may be fixed symmetrically on the inside and the outside of the door, and may be provided with a hollow rose projection 32 which is formed in a plate shape and protrudes in the thickness direction of the door and is opened at one side. The handle 40 may be inserted into the rose projection 32 or the rose projection 32 may be inserted into the handle 40 and may be configured to guide the movement direction of the handle 40. [ The rose protrusion 32 may be a hollow cylindrical or polygonal column. One side of the rose projecting portion 32 is opened and the other side is provided with a bottom surface 34. A through hole 36 may be formed in one side of the bottom surface 34 so that the drive shaft 10 can pass through.

The through hole 36 or the bottom surface 34 of the rose 30 may be provided with a fixing member 38 for determining the turning radius of the locking projection 13 in the locking mode of the door opening / In an embodiment of the present invention, the drive shaft 10 is configured to be rotatable by 90 degrees.

The bottom surface 34 of the rose 30 may include an elastic member provided to return the handle 40 and the drive shaft 10 to a predetermined position after an external force is applied by a user. . &Lt; / RTI &gt; The rose spring 35 may be composed of an elastic member such as a coil spring and the handle 40 and the drive shaft 10 can always return to the correct position by the elastic force of the rose spring 35. [

The handle 40 is engaged with both longitudinal ends of the drive shaft 10 and can be configured symmetrically on the inside and the outside of the door. So that the force applied to the handle 40 by the user is transmitted to the drive shaft 10 as it is. The shape of the handle 40 can be freely changed depending on the use, and is not limited to the planar shape of the drawings. However, any shape such as a square having a specific size, a conventional circular shape, a lever shape, a circular plate shape, or a square shape may achieve the object of the present invention, but it is preferable that the shape is flat so that the user can easily push and pull the door. At one side of the handle 40, a hollow handle protrusion 42 protruding in the thickness direction of the door and opened at one side may be provided. The handle protrusion 42 may be a hollow cylinder or a polygonal column. The rose projecting portion 32 may be inserted into the handle projection 42 or the handle projection 40 may be inserted into the rose projection 32 to guide the movement direction of the handle 40. [ In addition, the handle projection 42 may be configured to be larger than the diameter of the drive shaft 10 and be configured to receive both ends of the drive shaft 10.

The coupler 50 may be formed of a cylinder having at least a part of both ends for connecting the end of the drive shaft 10 and the handle projection 42 of the handle 40 at least partially. The handle 40 can be directly fastened to the handle with a universal component such as a snap ring, a bolt, and a nut. The driving shaft 10 can be configured to move integrally with the driving shaft 10 with respect to the longitudinal movement of the driving shaft 10 without interfering with the rotation of the driving shaft 10. For this configuration, the drive shaft 10 and the coupler 50 may be coupled with each other with an O-ring or a ball bearing interposed therebetween.

According to an embodiment of the present invention, the object of the present invention can be achieved without a coupler 50. [ The end of the drive shaft 10 may be directly connected to the handle projection 42 of the handle 40 via a ball bearing or the like. That is, the handle protrusion 42 can be configured to move integrally with the drive shaft 10 in the longitudinal direction movement of the drive shaft 10, without interfering with the rotation of the drive shaft 10.

With regard to the closed mode of the door opening / closing apparatus, Fig. 5 is a sectional view showing a closed mode according to an embodiment of the present invention. As shown in FIG. 5, in the closed mode of the door opening / closing device according to the embodiment of the present invention, the latch 200 protrudes to the outside of the door 3. The latch 200 is projected to the outside of the door 3 and the door 3 is closed. In the closed mode, the drive shaft 10 is positioned in the correct position, and the latch shaft 22 is positioned in the valley of the guide rail 12. [ Since the latch spring 28 provided in the latch spring house 26 is compressed, the latch shaft 22 can be configured to be in close contact with the drive shaft 10. [

6 is a cross-sectional view showing a first open mode according to an embodiment of the present invention, in relation to the first open mode of the door opener. As shown in FIG. 6, in the first opening mode of the door opening / closing apparatus according to the embodiment of the present invention, the latch 200 is drawn into the door 3. When the user pushes the handle 40 and opens the door 3. [ The drive shaft 10 is moved in the longitudinal direction by an external force and the latch shaft 22 seated on the valley of the guide rail 12 is displaced from the center of the door opening / And the latch driving unit 20 is positioned such that the latch 200 is drawn into the door 3.

With respect to the second opening mode of the door opening / closing device, Fig. 7 shows a sectional view showing the second opening mode according to an embodiment of the present invention. As shown in FIG. 7, in the second open mode of the door opening / closing apparatus according to an embodiment of the present invention, the latch 200 is drawn into the door 3. Quot; means when the user opens the door 3 while pulling the handle 40. The principle in which the latch 200 is drawn into the inside of the door 3 is the same as the first open mode.

The drive shaft 10 is moved in the direction of the elastic restoring force of the rose spring 35 provided on the bottom surface 34 of the rose 30 when the external force acting on the drive shaft 10 is removed in the first open mode and the second open mode Thereby returning to the correct position. The center of the guide rail 12 coincides with the center of the door opening and closing apparatus 1. The latch shaft 22 seated on the guide rail 12 is fixed to the valley of the guide rail 12, The driving unit 20 is in the closed mode in which the latch 200 is located and stabilized so as to protrude to the outside of the door 3.

8 is a front view showing a lock mode according to an embodiment of the present invention, in connection with the lock mode of the door opener. 8, in the lock mode of the door opening / closing apparatus according to the embodiment of the present invention, when the latch 200 protrudes to the outside of the door, the driving shaft 10 rotates to move the driving shaft 10 in the longitudinal direction . When the user rotates the key bundle using the key, the body of the drive shaft 10 rotates in the same direction due to the rotation of the linkage 100 inserted in the linkage hole 14 of the drive shaft 10. At this time, the lock projection 13 provided at at least one end of the drive shaft 10 also rotates together with the bottom surface 34 of the rose 30 by coming off the through hole 36 of the rose 30, Is fixed in the longitudinal direction or in the longitudinal direction. In this state, even if an external force is applied to the door knob 40 by the user, the drive shaft 10 is not pushed. The rotation radius of the lock projection 13 is determined by a fixing member 38 provided on the bottom surface 34 of the rose 30 and is configured to be rotatable by 90 degrees in one embodiment of the present invention. In order to smooth the rotation of the drive shaft 10 in the lock mode, the drive shaft rotation part 16 and the latch shaft rotation part 18 may be provided on at least one side of the drive shaft 10 with a curved outer periphery.

The key bundle 104 may be constituted by an external key bundle including a common key hole or an external key configured to input a password or a technique of fingerprint recognition, iris recognition, vein recognition, or the like.

<Moon>

The door according to one embodiment of the present invention includes a plate-like door main body, an opening / closing device installation hole provided at one side of the door main body, a hinge shaft provided at the other side of the door main body and configured to be used as a rotary shaft of the door main body, A door opening / closing device may be provided in the opening and closing device mounting opening.

The combination of the above-described components is not limited to the detailed description and the drawings, but may be combined with a bolt and a fastening mechanism such as a snap ring or a rivet. In addition, the material of each constitution may be composed of plastic, wood, metal and the like in accordance with the use of the door opening and closing apparatus. However, in order to prevent abrasion and noise caused by friction between the drive shaft 10 and the respective components caused by the longitudinal movement of the drive shaft 10, it is preferable that the drive shaft 10 is made of reinforced plastic or a soft metal.

As described above, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

1: Door opening / closing device
3: Door
10:
12: Guide rail
13: Locking projection
14: Connecting rod hole
16:
18: Latch shaft rotating part
20:
22: Latch shaft
24: Latch bearing
26: Latch spring house
28: Latch spring
30: Rose
32: rose protrusion
34: bottom surface
35: Rose spring
36: Through hole
38: Fixing member
40: Handle
42: Handle protrusion
50: Coupler
100: Links
102: Internal key
104: A bunch of keys
200: latch

Claims (8)

A door opening / closing apparatus which is installed inside a door and is configured so that opening / closing of the door is determined by protrusion or entry of a latch,
A drive shaft configured to penetrate through the door in a thickness direction of the door, the drive shaft being configured to be reciprocatable in a thickness direction of the door, and configured to have a cylindrical or polygonal shape;
A latch driver configured to be coupled to one side of the latch and to be coupled to the other side of the driving shaft so as to surround a part of the driving shaft and to be movable in a lateral direction of the driving shaft;
A linear latch shaft provided on the other side of the latch driving unit and disposed so as to cross the lateral direction of the driving shaft; And
A guide rail provided at one side of the drive shaft in a shape of a slant line or an arc line and having the latch shaft mounted thereon to provide driving of projection or insertion to the latch;
/ RTI &gt;
Wherein the drive shaft is configured to be rotatable about an axis of the transverse section,
A key bundle configured to be rotatable about a center of a cross section of the drive shaft by a user; And
A link coupled to the key bundle and inserted into at least one end of the drive shaft to transmit rotational force of the key bundle to the drive shaft;
Further comprising:
Wherein when the driving shaft is rotated and deviates from a predetermined position, the driving shaft can not reciprocate.
The method according to claim 1,
A handle coupled to at least one end of the drive shaft and configured to allow a user to push or pull in a direction of thickness of the door; And
A rose having a through hole formed in at least one of an outer side surface and an inner side surface of the door and configured to allow the drive shaft to pass therethrough and being in close contact with one side of the handle to guide the moving direction of the handle;
The door opening / closing device further comprising:
3. The method of claim 2,
A rose spring having one end fixed to one side of the through hole of the rose and the other end fixed to one side of the handle or one side of the drive shaft to provide an elastic force to the drive shaft;
The door opening / closing device further comprising:
delete The method according to claim 1,
A handle coupled to at least one end of the drive shaft and configured to allow a user to push or pull in a direction of thickness of the door;
A rose having a through hole formed in at least one of an outer side surface and an inner side surface of the door and configured to allow the drive shaft to pass therethrough and being in close contact with one side of the handle to guide the moving direction of the handle; And
A drive shaft rotating part provided at both ends of the drive shaft so that the drive shaft can rotate smoothly and at least a part of the cross section of the drive shaft being formed of a curved line;
Further comprising:
Wherein at least one end of the drive shaft is inserted into the through hole of the rose.
The method according to claim 1,
A latch shaft rotatable portion having a curved outer periphery at least a part of a cross section of the portion so that a portion of the drive shaft contacting the latch shaft can rotate smoothly;
The door opening / closing device further comprising:
The method according to claim 1,
Wherein the latch shaft is configured to protrude in a lateral direction of the drive shaft on one side of the drive shaft,
Wherein the guide rail is provided on at least one surface of the latch driving part in a slant or arc shape so that the latch shaft is seated.
A plate-shaped door body;
An opening / closing device installing hole which is a hole provided at one side of the door main body;
A hinge shaft provided on the other side of the door body and configured to be used as a rotary shaft of the door body; And
A door opening / closing device according to claim 1 provided in the opening / closing device installation opening;
A door containing.

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