WO2014123304A1

WO2014123304A1 - Stopper for door

Info

Publication number: WO2014123304A1
Application number: PCT/KR2013/012047
Authority: WO
Inventors: 박기현; 서덕규; 이상수; 김항섭
Original assignee: (주)메티스
Priority date: 2013-02-06
Filing date: 2013-12-23
Publication date: 2014-08-14
Also published as: KR101282085B1

Abstract

The present invention relates to a stopper for a door. The stopper comprises: a rotary plate rotationally provided at one side of the door so as to rotate vertically and including a support pin protruded from one side thereof; a rotating bar formed to be extended from one side of the rotary plate; a stopper part having one side combined with the rotating bar and moving between a fixed position at which the stopper part rotates with rotary plate and the bottom end portion thereof is supported on the ground and a release position at which the stopper part moves upward from the fixed position such that the supported state is released; a latch provided at one side of the door so as to rotate vertically and having a holding part and a pressing part formed to be spaced from each other at one side thereof and the support pin disposed between the holding part and the pressing part; and a rotational force providing means of which one side is connected to one side of the latch and provides rotational force to the latch, wherein the support pin is formed to have a diameter which is smaller than the distance between the holding part and the pressing part.

Description

Stopper device for the door

The present invention relates to a stopper device for a door, and the stopper part is not supported on the ground even if the height of the ground on which the stopper is supported varies depending on the installation environment while allowing the stopper part to be automatically rotated to significantly improve the convenience of the stopper part. Or it relates to a stopper device for a door that can prevent the rotational force providing means is excessively driven to shorten the life of the rotational force providing means.

In general, the entrance door of a building such as an office or an apartment needs to keep the door open due to pedestrian traffic, indoor ventilation, etc. Conventionally, the opening angle of the door is controlled through a wedge member between the ground and the lower end of the door. By fixing or supporting the support article having a certain weight on one side of the door to keep the door open at any angle.

However, the wedge member is required to be interposed between the ground and the door is not only inconvenient to use the method, but also has a problem that the door is released due to the weak fixing force of the door.

Meanwhile, in the case of the support article, an object having a considerable weight is used to support the door, and if the door is to be kept open or released, it must be moved to another place. This occurred.

The stopper device for the door is used in a more improved manner than the fixing means such as the wedge member or the support article, an example thereof is shown in FIG.

1 is a view showing a state in which a conventional stopper device for the door is installed in the door.

As shown in FIG. 1, the conventional stopper device 100 for a door is fixed to the lower side of the door D and is fixed to the bracket 110, which is formed in a horseshoe shape and hinged to one side of the fixed bracket 110. The stopper part 120 is rotatably installed in the vertical direction.

The conventional door stopper device 100 rotates the door D in a state where the stopper part 120 is folded upward, and then rotates the stopper part 120 downward at an arbitrary position to be opened. The lower end of the stopper part 120 is grounded to the ground so that the open state of the door D is maintained.

However, in the conventional door stopper device 100, the user leans his / her back and grips the attached stopper part 120 of the door D to operate the door stopper D so as to maintain the open state of the door D or the door D. ) Has to be rotated so that the operation of the stopper 120 is not only very cumbersome, but also the user uses the feet to operate the stopper 120 to reduce the hassle while the stopper 120 is damaged or broken. There is a problem that the life is significantly shortened.

In addition, in the conventional door stopper device 100, the user's hand is also contaminated while the user grips it to manipulate the stopper part 120, which is dirty by dust or foreign matter, and thus the user always operates the stopper part 120 after the operation. There was a hassle to wash.

Recently, a door stopper device for automatically turning the stopper part has been developed.

2 is a view schematically showing a conventional automatic stopper device for a door.

As shown in FIG. 2, the conventional automatic stopper device 200 for a door includes a motor 210 fixed to one side of the door D, and a stopper part 220 connected to a rotation shaft of the motor 210 to rotate up and down. When the user turns on the operation switch provided separately, the stopper 220 is rotated downward and supported by the ground as the motor is driven.

However, such a conventional automatic stopper device for a door 200, even though the stopper 220 is supported on the ground, the stopper 220 is supported on the ground when the motor is continuously driven due to inexperienced operation of the user. There was a problem that the life of the motor 210 is significantly shortened while the rotational axis of the motor 210 forcibly rotates in a state.

In order to solve the above problems, an effort has been made to prevent the life of the motor 210 from being shortened by stopping the driving of the motor 210 when the motor 210 rotates by a predetermined angle.

However, as described above, when the rotation angle of the motor 210 is rotated by a predetermined angle and the driving of the motor 210 is stopped, the stopper part 220 rotates only within the preset rotation angle. As the height of the ground gradually decreases as described above, when the height of the ground at which the lower end of the stopper 220 is supported is out of the preset rotation angle of the stopper 220, the lower end of the stopper 220 is not supported by the ground. There was a problem of not functioning properly.

In addition, when the height of the ground on which the lower end of the stopper 220 is supported is higher than the preset stopper support position, the lower end of the stopper 220 is supported on one side of the ground as in the prior art. As the motor 210 is continuously driven to rotate, a problem of shortening the life of the motor 210 has occurred.

The present invention has been made to solve the above problems, the object of the present invention is to allow the stopper portion to be automatically rotated to significantly improve the ease of operation of the stopper portion while the height of the ground on which the stopper is supported according to the installation environment Even if it is different, the stopper is not supported on the ground or the rotational force providing means is driven excessively to provide a door stopper device for preventing the life of the rotational force providing means in advance.

Another object of the present invention, even if the height of the ground on which the stopper is supported in accordance with the installation environment in a state in which the rotation angle of the rotational force providing means is rotated only at a predetermined angle by using the sensor unit, the stopper part is easily supported on the ground. It is possible to provide a stopper device for a door that can prevent the shortening of the life of the rotational force providing means in advance.

According to one side of the present invention for achieving the above object, the rotating plate is installed on one side of the door to be rotated in the vertical direction, and includes a support plate protruding from one side, and extending from one side of the rotation plate. Rotating bar, and one side is coupled to the rotating bar, and when the rotating plate is rotated between the fixed position where the lower end is supported on the ground and the release position is moved upward from the fixed position and supported on the ground is released A stopper part for moving a part is installed to be rotatable in a vertical direction on one side of the door, and a locking part and a pressing part are formed to be spaced apart from each other, and the support pin is disposed between the locking part and the pressing part. A latch and one side is connected to one side of the latch, the rotation to provide a rotation force to the latch Comprising: a providing means, characterized in that the support pin there is provided a door stopper device for being formed to have a diameter smaller than with the engaging portion, the separation distance of the pressing portion.

The stopper plate may have a stopper pin protruding from one side thereof, and the locking part may be disposed between the stopper pin and the support pin.

In addition, the latch has a length longer than the diameter of the support pin on one side is preferably formed with a long hole in which the support pin is placed.

In addition, the rotational force providing means is one side is connected to one side of the latch, a motor for providing a rotational force to the latch, and is installed on one side of the door, the first predetermined when the rotation plate is rotated upward An upper sensor unit for outputting a detection signal when positioned at a reference position, and a lower sensor unit installed at the other side of the door and outputting a detection signal when positioned at a second predetermined reference position when the latch rotates downward; can do.

In addition, the upper sensor unit and the lower sensor unit are respectively installed on one side of the door, the contact portion is installed on one side of the main body, and electrically connected to the rotational force providing means and one side of the main body elastically coupled And, when pressed by either the latch or the pivoting plate, preferably includes a conductive plate contacting the contact.

In addition, the rotation plate may be formed to be flat to the side for pressing the conductive plate of the upper sensor unit is planar.

In addition, the rotation plate is preferably a protrusion formed on one side to press the conductive plate of the upper sensor portion protruding.

According to the present invention as described above, the support pin disposed between the locking portion and the pressing portion is formed to have a diameter smaller than the separation distance between the locking portion and the pressing portion, so that the clearance space is formed between the supporting pin and the locking portion or the support plate and the pressing portion. And the stopper part is automatically rotated as the pivoting plate is rotated together as the locking part is supported by the supporting pin, thereby improving the operability of the stopper part remarkably while maintaining the stopper according to the installation environment. Even if the height is changed, the stopper part is not supported on the ground, or the rotational force providing means is excessively driven, thereby preventing the life of the rotational force providing means in advance.

In addition, according to the present invention, the limit switch is used as the motor is used to lower the manufacturing cost, and thus the height of the ground on which the stopper is supported depends on the installation environment in which the rotation angle of the rotational force providing means is set to rotate only at a predetermined angle. Even if the stopper part is easily supported on the ground, it is possible to prevent the life of the rotational force providing means from being shortened.

1 is a view showing a state in which a conventional stopper device for the door is installed in the door,

2 is a view schematically showing a conventional automatic stopper device for a door;

3 is a perspective view of a stopper device for a door according to an embodiment of the present invention;

Figure 4 is an exploded perspective view of the door stopper device according to an embodiment of the present invention,

5 is a view showing the arrangement of the latch and the rotation plate according to an embodiment of the present invention;

6 is a view showing another shape of the rotation plate according to the embodiment of the present invention;

7 is a view showing a state in which the latch is rotated in accordance with an embodiment of the present invention to press one side of the support pin,

8 is a view showing a state in which the stopper portion is rotated downward according to an embodiment of the present invention;

9 is a view showing a state in which a stopper part is supported on the ground according to an embodiment of the present invention;

10 is a view showing a rotation plate of the stopper device for a door according to another embodiment of the present invention;

11 is a perspective view of a door stopper device according to another embodiment of the present invention;

12 is an exploded perspective view of a stopper device for a door according to another embodiment of the present invention;

13 is a side view of a stopper device for a door according to another embodiment of the present invention;

14 is a view showing a state in which the stopper portion is rotated upwards according to another embodiment of the present invention;

15 is a view showing a state in which the stopper portion is rotated downward according to another embodiment of the present invention.

Figure 16 is a view showing a state in which the stopper portion is rotated downward according to another embodiment of the present invention.

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

Figure 3 is a perspective view of the stopper device for a door according to an embodiment of the present invention, Figure 4 is an exploded perspective view of the stopper device for a door according to an embodiment of the present invention, Figure 5 is an embodiment of the present invention 6 is a view showing an arrangement of the latch and the rotation plate, Figure 6 is a view showing another shape of the rotation plate according to an embodiment of the present invention.

3 to 6, the stopper device for a door according to an embodiment of the present invention is a rotating plate 10, the rotating bar 20, the stopper portion 50, the latch 30 and the turning force It comprises a providing means 40.

Rotating plate 10 is formed in a substantially disk shape and plate member 11 which is rotatably installed on one side of the door (D) and the latch 30 is formed to protrude from one side of the plate member 11 to be described later It comprises a support pin 12 disposed between the portion 32 and the pressing portion 33 and the stopper pin 13 protruding from the other side of the plate member 12, by the latch 30 described later The support pin 12 is pressed to rotate together with the latch 30 and serves to allow the stopper part 50 connected by the pivoting bar 20 to be described later to rotate in the vertical direction.

Wherein the support pin 12 and the stopper pin 13 is pressed by the latch 30, which will be described later, when the plate member 11 is rotated, the area pressed by the latch 30 is formed to be curved so that the latch 30 It is preferable to form a cylindrical shape so that the pressurized state can be naturally maintained.

In addition, the pivoting plate 10 has the stopper portion 50 to be described later in the process of rotating downward by allowing the locking portion 32 to be disposed between the support pin 12 and the stopper pin 13 at a predetermined angle. In this case, the stopper pin 13 is supported on one side of the catching part 32 before the lower end of the stopper part 50 collides with the ground so that damage of the stopper part 50 due to the impact shock can be prevented in advance. It is desirable to.

In addition, the rotation plate 10 and the first conductive plate 43c so as to easily press the first conductive plate 43c of the upper sensor portion 43 to be described later when rotated upward by the latch 30. It is preferable that the corresponding one side is flat and formed flat.

In addition, in one embodiment of the present invention has been described that the one side is planar processing so that the rotating plate 10 can easily press the first conductive plate (43c), the rotating plate 10 of the present invention is necessarily It is not limited, as shown in Figure 5b to protrude the pressing projection 14 on the side where the first conductive plate 43c is in contact with the pressing projection 14 can press the first conductive plate 43c. Of course.

Rotating bar 20 is formed extending in one direction from one side of the rotation plate 10, one side is rotatably coupled to one side of the door (D), the other side is a stopper 50 to be described later coupled to the rotation plate ( When 10) is rotated by the latch 30 serves to transmit the rotational force transmitted from the rotation plate 10 to the stopper 50 while rotating together with the rotation plate 10.

The stopper part 50 is fixedly coupled to one side of the outer surface of the rotation bar 20 and is formed in a horseshoe shape, and when the rotation bar 20 rotates, the support body 51 rotated in the vertical direction of the door D, and the support body is supported. It comprises a soft friction member 52 coupled to the lower end of the body 51, when the support body 51 is rotated downward, the friction member 52 is grounded on one side of the ground to open the door (D) It is responsible for maintaining the state.

Meanwhile, in one embodiment of the present invention, the recess P is formed at one side of the lower side of the door D, and the stopper 50 is received outside by allowing the stopper 50 to be accommodated in the recess P. It is desirable to be exposed and not interfere with the pedestrian.

The latch 30 is formed between the body portion 31 coupled to the rotating shaft of the rotational force providing means 40 to be described later, and protruded outward from one side of the body portion 31 and between the pair of support pins 12. It is configured to include a pressing portion 33 which protrudes outward from the other side of the engaging portion 32 and the body portion 31 to press the conductive plate of the lower sensor portion 44 to be described later.

The latch 30 receives the rotational force from the rotational force providing means 40 and rotates in the vertical direction to press the support pin 12 of the pair of support pins 12 to rotate the rotation plate 10. ) Serves to rotate together in the vertical direction, the operation of the latch 30 will be described in more detail in the operation description to be described later.

The rotational force providing means 40 includes a fixed bracket 41 installed on one side of the door D, a motor 42 installed on one side of the fixed bracket 41, and a rotating plate 10 pivoted upward. In the case where the upper sensor unit 43 and the latch 30 are rotated downward installed on one side of the door (D) in contact with the rotation plate 10 in a predetermined position is in contact with the latch 30 in a predetermined position It is configured to include a lower sensor unit 44 is installed on one side of the door (D), and serves to rotate the latch 30 to a predetermined position by providing a rotation force to the latch (30).

The fixing bracket 41 is formed in a substantially "c" shape, and is fixed to one side of the door D corresponding to the rotation plate 10 to serve to fix the motor 42 to be described later.

The motor 42 is fixedly installed at one side of the fixing bracket 41 and generates a rotational force by receiving power from the outside, and serves to provide the generated rotational force to the latch 30 coupled to one side of the rotation shaft.

The motor 42 may be a step motor 42 (step motor) capable of precise control, but in order to reduce manufacturing costs, a DC motor 42, which is relatively inexpensive than the step motor 42, is used. Preferably, in one embodiment of the present invention will be described as the DC motor 42 is used.

Then, the motor 42 is driven through the operation of the operation switch provided near the handle of the door (D).

The upper sensor part 43 is provided at one side of the first body 43a and the first body 43a which are installed at a position corresponding to the first predetermined reference position when the rotation plate 10 rotates upward. When elastically coupled to one side of the first contact portion 43b and the first body 43a electrically connected to the rotational force providing means 40 and pressed by the pivoting plate 10 to the first contact portion 43b. It comprises a first conductive plate 43c in contact.

The upper sensor unit 43 is the first conductive plate 43c is applied to the first contact portion 43b when the rotating plate 10 is pressed to one side of the first conductive plate 43c while the rotating plate 10 is rotated to the first reference position. It is contacted to output the detection signal.

The lower sensor unit 44 is installed on one side of the second main body 44a and the second main body 44a that is installed at a position corresponding to the second predetermined reference position when the latch 30 rotates downward. The second contact portion 44b electrically connected to the power supply means 40 and the second contact portion 44b when elastically coupled to one side of the second body 44a and pressurized by the rotation plate 10. It is configured to include a second conductive plate 44c.

The lower sensor part 44 contacts the second contact part 44b when the latch 30 is pressed to one side of the second conductive plate 44c while the latch 30 is rotated to the second reference position. And outputs a detection signal.

As described above, the upper sensor unit 43 and the lower sensor unit 44 output a sensing signal when the rotation plate 10 and the latch 30 are located at the first reference position or the second reference position, respectively, and output the detected signals. By applying a signal to the rotational force providing means to stop the driving of the motor 42 serves to rotate the stopper 50 at a predetermined rotation angle.

Meanwhile, in an embodiment of the present invention, the upper sensor part 43 and the lower sensor part 44 are described as including a main body, a contact part, and a conductive plate, but the upper sensor part 43 of the present invention is described. And the lower sensor unit 44 is not necessarily limited to this, if the stopper unit 50 is configured to rotate at a predetermined rotation angle may be any one of a variety of sensors such as optical sensors can be selectively used, of course. to be.

7 is a view illustrating a state in which the latch rotates according to an embodiment of the present invention to press one side of the support pin, and FIG. 8 illustrates a state in which the stopper part rotates downward according to an embodiment of the present invention. 9 is a view showing a state in which the stopper part is supported on the ground according to an embodiment of the present invention.

Referring to Figures 7 to 9 attached to the operation of the door stopper device according to an embodiment of the present invention having such a configuration as follows.

First, when the user turns on the operation switch installed on one side of the door (D), the motor 42 of the rotational force providing means 40 is driven, as shown in Figure 6 as the motor 42 is driven latch ( As the 30 is rotated downward, the latching portion 32 of the latch 30 is supported on one side of the support pin 12.

As the locking part 32 rotates downward while the locking part 32 is supported on one side of the support pin 12, the locking part 32 presses one side of the support pin 12 to rotate the plate 10 to the latch 30. It will be accompanied by a downward meeting.

When the rotation plate 10 is rotated downward by approximately 30 ° to 60 °, as shown in FIG. 7, the locking part 32 is freely rotated downward by the weight of the stopper part 50 and the stopper pin 13 is rotated. As supported by the other side of the), the clearance space (S) is formed between the engaging portion 32 and the support pin 12, and moves downward with the latch (30).

Since the rotating plate 10 is moved downward with the latch 30 while the stopper pin 13 is supported by the other side of the locking portion 32, the lower plate of the stopper 50 is supported by the ground plate The rotation of (10) is stopped.

Here, even when the rotation of the rotation plate 10 is stopped, the latch 30 is further rotated downward by the clearance space S formed between the locking portion 32 and the support pin 12, and the latch 30 is pressed. When the unit 33 presses one side of the conductive plate of the lower sensor unit 44, a detection signal is output from the lower sensor unit 44, and the driving of the motor 42 is stopped according to the output detection signal, thereby latching. The latch 30 also stops the rotation operation while being interrupted by the rotational force provided to the 30.

As described above, the door stopper device according to the embodiment of the present invention has a predetermined latch due to the clearance space formed between the locking part 32 and the support pin 12 even after the lower end of the stopper part 50 is supported on the ground. (30) By providing the rotation section, even if the ground of the installation area is higher than the ground support position of the stopper or the operation of the motor 42 by the user's malfunction, the stopper portion is prevented from generating a load on the motor 42. While providing the operational convenience of the 50, there is a feature that can significantly improve the life of the motor 42, that is, the rotational force providing means 40.

10 is a view showing a rotation plate of the stopper device for a door according to another embodiment of the present invention.

The basic configuration of FIG. 10 is the same as the embodiment of FIGS. 1 to 8 but is formed in a structure capable of pressing the support pin 12 more stably so that the stopper portion 50 can be easily rotated in the vertical direction. will be.

As shown in FIG. 10, unlike the previous embodiment, the latching portion 32 and the pressing portion 33 of the latch 30 are omitted.

Instead, the latch 30 has the same width as the diameter of the support pin 12 on one side, the long hole 34 is formed with a length longer than the diameter of the support pin 12, the support pin (inside the long hole 34) 12) is inserted.

When the latch 30 rotates downward, the upper portion of the inner surface of the latch 30 having the long hole 34, that is, the 'A' region shown in the drawing, presses one side of the support pin 12 to rotate the rotation plate ( 10 and the downward rotation, and when the latch 30 is rotated upward, the lower portion of the inner surface of the latch 30 in which the long hole 34 is formed, that is, the 'B' region shown in the drawing is supported by the support pin 12. By pressing one side of the rotating plate 10 is to be rotated upward accompanied by the stopper 50 to be rotated up and down.

Since the rest of the structure is the same as the above-described basic embodiment, the rest of the description will be omitted.

Figure 11 is a perspective view of a stopper device for a door according to another embodiment of the present invention, Figure 12 is an exploded perspective view of a stopper device for a door according to another embodiment of the present invention, Figure 13 is another embodiment of the present invention 14 is a side view of a stopper device for a door according to an embodiment, and FIG. 14 is a view showing a state in which a stopper part is rotated upwards according to another embodiment of the present invention, and FIGS. It is a figure which shows the state in which the stopper part rotated below.

11 to 16 are the same as the embodiment of FIGS. 3 to 7, except that the latch is rotated by the driving of the support pin to operate the stopper part.

As shown in Figures 10 to 13, unlike the previous embodiment, the rotational force providing means 40 'is fixedly installed on one side of the door, and the plate member 10' is provided with the rotational force providing means 40. ') Is coupled to the rotation axis (R) of.

Here, the plate member 10 'includes a plate member 10' coupled to one side of the rotation shaft R, and a support pin 12 'protruding from one side of the plate member 10'. The support pin 12 'acts to transmit the rotational force to the stopper 50' by pressing one side of the latch 30 'while receiving and rotating the rotational force from the rotational force providing means 40'. .

The latch 30 'is coupled to one side of the outer surface of the rotation bar coupled to one side of the stopper portion 50', and when the plate member 10 'is rotated, one side is pressed by the support pin 12' and the plate member. Receives a rotational force from (10 ') serves to cause the stopper portion 50' to rotate.

More specifically, the latch 30 'includes a body portion 31' coupled to one side of the pivoting bar, and a locking portion 32 'and a body portion 31 protruding outward from one side of the body portion 31'. It is configured to include a pressing portion 33 'protruding outward from the other side of').

In addition, in the present embodiment, the sensor unit 43 'is installed above the latch 30' of one side of the door, and the sensor unit 43 'is the upper sensor unit (Fig. 8 to 11) described above. 43 'or the lower sensor part 43', the main body 43'a fixedly installed above the latch 30 'among one side of the door, and the contact part provided on one side of the main body 43'a. 43'b) and a conductive plate 43'c elastically coupled to one side of the main body 43'a.

Looking at the operation of the door stopper device according to another embodiment of the present invention configured as described above with reference to Figure 12, first, the rotational force providing means 40 'is driven to provide a rotational force providing means 40' When the rotating shaft R is rotated, the plate member 10 'coupled to the rotating shaft R is rotated upward and presses one side of the latching portion 32' of the latch 30 'upward.

Accordingly, as the latch 30 'is rotated upward, the stopper portion 50' is also moved upward with the latch 30 '. When the latch 30' is rotated at an angle, one side of the locking portion 32 'is upward. The conductive plate 43'c of the sensor unit 43 'located at the pressure is pressed, and the conductive plate 43'c is in contact with the contact unit 43'b, and a sensing signal is output. Accordingly, the driving of the rotational force providing means is stopped.

As a result, the rotational force supplied to the plate member 10 'is stopped, and the latch 30' also stops the rotational operation to maintain the stopper portion 50 'rotated upward.

On the other hand, the operation of the stopper portion 50 'is rotated downward, the rotational force providing means 40' is driven to rotate the rotation shaft (R) in the reverse direction in the above-described rotation direction plate member coupled to the rotation shaft (R) 10 ') moves downward to the initial position, wherein the support pin 12' of the plate member 10 'presses one side of the pressing part 33' of the latch 30 'downward. .

Thereafter, when the plate member 10 'is moved to the initial position, the latch 30' free-falls below a predetermined angle, and as the latch 30 'free-falls, the stopper 50' rotates downward. Is supported on the ground.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.

Claims

A pivoting plate rotatably installed in one side of the door and including a support pin protruding from one side;

A rotation bar extending from one side of the rotation plate;

One side is coupled to the pivoting bar, and when the pivoting plate is rotated to move between the fixed position of the lower end is supported on the ground and the release position is moved upward from the fixed position to be released to the ground A stopper portion;

A latch installed rotatably in a vertical direction on one side of the door, the latching portion and the pressing portion being spaced apart from each other, and the support pin being disposed between the locking portion and the pressing portion; And

One side is connected to one side of the latch, including a rotational force providing means for providing a rotational force to the latch,

The support pin is a door stopper device characterized in that it is formed to have a diameter smaller than the separation distance between the locking portion and the pressing portion.
The method of claim 1,

The rotation plate has a stopper pin protruding from one side, the stopper device for a door, characterized in that the engaging portion is disposed between the stopper pin and the support pin.
The method of claim 1,

The latch has a length longer than the diameter of the support pin on one side, the stopper device for a door, characterized in that the long hole is formed that the support pin is inserted.
The method of claim 1,

The rotational force providing means

A motor having one side connected to one side of the latch and providing a rotational force to the latch;

An upper sensor unit installed at one side of the door and outputting a detection signal when the rotation plate is rotated upward and positioned at a first predetermined reference position; And

And a lower sensor unit installed at the other side of the door and outputting a detection signal when the latch is rotated downward and positioned at a second predetermined reference position.
The method of claim 4, wherein

The upper sensor portion and the lower sensor portion, respectively

A main body installed at one side of the door;

A contact portion installed at one side of the main body and electrically connected to the rotational force providing means; And

And a conductive plate elastically coupled to one side of the main body, the conductive plate being in contact with the contact when pressed by any one of the latch and the pivoting plate.
The method of claim 5,

The pivoting plate is a stopper device for a door, characterized in that the one side pressing the conductive plate of the upper sensor portion is formed by flat processing.
The method of claim 5,

The rotating plate is a stopper device for a door, characterized in that the pressing projection is formed on one side for pressing the conductive plate of the upper sensor portion.