KR102608851B1 - Apartment Door Sag Prevention Device - Google Patents

Abstract

The present invention relates to a door sagging prevention device for an apartment complex, comprising: a body in which upper and lower coupling holes formed with spirals protruding from the center of the upper and lower ends are formed on the outer surfaces of the ends; an internal support member mounted on the outside of the body and having a horizontal support jaw formed at the lower end; A close fitting fixture that is supported on the horizontal support ledge, penetrates the inner support, is fixed to the body through a fastener, and has an outer surface in contact with the door or door frame; an upper flat plate located on the upper part of the body and fitted into the upper coupler; A door coupler formed in a right-angled shape, the vertical surface of which is fixed to the door through a fastener, and a coupling hole coupled to the upper coupler of the body is formed inside the horizontal surface; an upper bearing fitted into an upper coupler located above and below the horizontal surface of the door coupler; an upper fixing nut threaded to an upper coupler located at the top of the upper bearing; an upper finishing cap disposed on the upper part of the upper fixing nut and closing the upper coupling hole of the body; a lower flat plate located at the lower part of the body and fitted into the lower coupler; A door frame coupler formed in a right-angled shape, the vertical surface of which is fixed to the door frame through a fastener, and a coupling hole coupled to the lower coupler of the body is formed inside the horizontal surface; a lower bearing fitted into a lower coupler located above and below the horizontal surface of the door frame coupler; a lower fixing nut spirally coupled to the lower coupler located at the lower part of the lower bearing; and a lower closing cap disposed below the lower fixing nut and closing the lower coupler of the body.

Description

Apartment Door Sag Prevention Device}

The present invention relates to a door sagging prevention device for an apartment complex.

A hinged door, which is generally installed at the entrance of a building, is a door that opens and closes by pushing or pulling. It opens and closes by rotating in a large circle around a hinge installed on one side. The load of the relatively heavy door moves in the form of a cantilever. Because of the concentration on the hinges, the door sags slightly over time, making the door's engagement inaccurate, and the gap between the door frame and the door narrows, making it difficult to open and close the door.

The structure of such a general hinged door is shown in Figure 1, and as shown, one side of the door 10 is attached to the square-shaped door frame 11 installed at the entrance of the building by a hinge 12. It is connected, and a door stopper (13) with a handle is installed on the other side, and a locking piece (not shown) that catches the door latch (14) protruding from the door stopper (13) toward the door frame (11) is installed on the door frame (13). It is installed on the inner side of the door 10 and the door frame 11, and a slight gap is formed between the door 10 and the door frame 11 to prevent interference when opening and closing the door 10.

As for general hinged doors with this structure, their weight gradually becomes heavier and reaches tens of kg in accordance with the trend of high-end buildings. In the early stages of construction, the door 10 and the door frame 11 are maintained at regular intervals, but When used for a long period of time, the opposite side of the hinge 12 sags downward due to the weight of the heavy door 10, changing the gap between the door frame 11 and the door 10, making it difficult to open and close the door 10 or causing the door to jam. There was a problem in that the engagement of (13) was inaccurate, resulting in a defect that made it impossible to close the door (10).

To solve this problem, according to Domestic Registered Utility Model Publication No. 20-0269615, a roller that supports the bottom of the door is installed on the lower jaw of the door frame to support the bottom of the door when the door is closed. Prior art 1 has been proposed to prevent sagging.

However, in prior art 1, since the bottom of the door is in direct contact with the roller, as the frequency of opening and closing the door increases, the wear of the lower edge of the door worsens, causing damage to the door, and the roller's Because the gap between the door frame and the door had to be set as large as the height, it was very difficult to apply as it was not aesthetically pleasing, and since the roller was installed at the bottom of the door frame, problems of tripping and falling occurred while passing, especially since the roller was installed at the bottom. Because it was located, there was a problem that it was easily contaminated by foreign substances.

In addition, prior art 1 uses a spacer to adjust the height of the roller, but when the height of the roller needs to be changed, it is inconvenient to replace it with a spacer of an appropriate thickness after loosening the bolt and disassembling it, and height adjustment is not possible. Because it is not continuous, there is a problem in that it becomes difficult to accurately adjust the height if a spacer with a thickness appropriate for the height to be adjusted is not prepared.

Republic of Korea Registered Utility Model Publication No. 20-0269615

The present invention was devised to solve the above problems, and provides a door sagging prevention device for apartment buildings that can prevent the load from being concentrated on one end of the door when the door is installed between the door frame and the door. .

In order to achieve the above object, the door sagging prevention device for apartments includes a body in which upper and lower coupling holes formed with spirals protrude from the outer surfaces of the ends in the center of the upper and lower parts; an internal support member mounted on the outside of the body and having a horizontal support jaw formed at the lower end; A close fitting fixture that is supported on the horizontal support ledge, penetrates the inner support, is fixed to the body through a fastener, and has an outer surface in contact with the door or door frame; an upper flat plate located on the upper part of the body and fitted into the upper coupler; A door coupler formed in a right-angled shape, the vertical surface of which is fixed to the door through a fastener, and a coupling hole coupled to the upper coupler of the body is formed inside the horizontal surface; an upper bearing fitted into an upper coupler located above and below the horizontal surface of the door coupler; an upper fixing nut threaded to an upper coupler located at the top of the upper bearing; an upper finishing cap disposed on the upper part of the upper fixing nut and closing the upper coupling hole of the body; a lower flat plate located at the lower part of the body and fitted into the lower coupler; A door frame coupler formed in a right-angled shape, the vertical surface of which is fixed to the door frame through a fastener, and a coupling hole coupled to the lower coupler of the body is formed inside the horizontal surface; a lower bearing fitted into a lower coupler located above and below the horizontal surface of the door frame coupler; a lower fixing nut spirally coupled to the lower coupler located at the lower part of the lower bearing; and a lower closing cap disposed below the lower fixing nut and closing the lower coupler of the body.

In addition, fitting grooves are formed at intervals in the vertical direction on the outer surface of the close fitting fixture, and horizontal rollers can be installed in each of the fitting grooves.

In addition, the upper part of the body is composed of an auxiliary support part fixed to the door frame and formed with a fitting protrusion on the inside, and an auxiliary support plate whose one end is fixed to the auxiliary support and the other end is coupled to the upper coupler located at the lower part of the upper finishing cap. An upper auxiliary support is mounted on the lower part of the body, and an auxiliary support part is fixed to the door and has a fitting protrusion formed on the inside, and one end is fixed to the auxiliary support and the other end is coupled to the lower coupler located on the upper part of the lower finishing cap. A lower auxiliary support consisting of an auxiliary support plate may be installed.

According to the door sagging prevention device for an apartment complex according to the present invention, it is possible to prevent the load from being concentrated on one end of the door when the door is installed between the door frame and the door, and also prevent the door from sagging in advance. There is a possible effect.

Figure 1 is a diagram showing the combined state of a general door frame and a door.
Figure 2 is a perspective view showing a door sagging prevention device for an apartment complex according to the present invention.
Figure 3 is an exploded perspective view showing a door sagging prevention device for an apartment complex according to the present invention.
Figures 4 and 5 are diagrams showing another embodiment of the door sagging prevention device for an apartment complex according to the present invention.
Figure 6 is a diagram showing an embodiment of a door sagging prevention device for an apartment complex according to the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the invention is defined by the claims. Meanwhile, the terms used in this specification are for describing embodiments and are not intended to limit the present invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” or “comprising” means the presence or presence of one or more other components, steps, operations and/or elements other than the mentioned elements, steps, operations and/or elements. Addition is not ruled out.

Hereinafter, the configuration of the present invention will be described with reference to the attached drawings. Figure 2 is a perspective view showing a door sagging prevention device for an apartment complex according to the present invention, and Figure 3 is a separate view showing the door sagging prevention device for an apartment complex according to the present invention. It is a perspective view.

The invention of the present invention is a door sagging prevention device for an apartment complex that includes a body (20), an internal support member (30), a close fitting fixture (40), an upper flat plate (50), a door coupler (60), an upper bearing (70), and an upper fixing nut. (80), an upper finishing cap 90, a lower flat plate 100, a door frame coupler 110, a lower bearing 120, a lower fixing nut 130, and a lower closing cap 140.

The body 20 is formed to have a predetermined size.

Here, the body 20 may be made of metal in consideration of strength, etc., but will be described as an example in which it is made of synthetic resin in consideration of weight and maintenance costs.

And the body 20 is formed in a cylindrical shape, and upper and lower coupling holes 22 and 23, each of which has a spiral 24 formed on the outer surface of the end, are protruding from the center of the upper and lower parts.

Here, it is revealed that the diameter and length of the upper and lower couplers 22 and 23 may vary depending on the configuration in which they are coupled.

The internal support member 30 is mounted on the outside of the body 20.

And the inner support member 30 is hollow and has a horizontal support ledge 31 formed at its lower end.

Here, the inner support 30 is made of an elastic material such as sponge, silicone, or rubber, and is formed to surround the outer surface of the body 20, so as to absorb the shock transmitted through the close fitting 40 and It plays a role in reducing external forces.

The close fitting fixture 40 is fixed to the body 20.

That is, the close fitting fixture 40 is supported on the horizontal support 31 of the inner support 30, penetrates the inner support 30, and is fixed to the body 20 through a fastener, and the outer surface 41 ) is in contact with the door (1) or the door frame (3).

Specifically, the close fitting fixture 40 is disposed between the door 1 and the door frame 3, and comes into close contact with the door 1 or the door frame 3 when the door 1 rotates.

At this time, the close fitting fixture 40 is made of strong metal or synthetic resin.

The upper flat plate 50 is located on the top of the body 20.

That is, the upper flat plate 50 is formed in a hollow shape and is fitted into the upper coupling hole 22 of the body 20.

Specifically, the upper flat plate 50 is fitted to the upper part of the body 20 to support the body 20, the internal support 30, and the close fitting fixture 40 at the upper part.

The door coupler 60 is coupled to the door 1 and the body 20.

And the door coupler 60 is formed in a right-angled shape, the vertical surface 61 is fixed to the door 1 through a fastener, and the upper coupler 22 of the body 20 is located inside the horizontal surface 62. A coupling hole 63 is formed that is coupled with.

That is, the door coupler 60 is formed in a right-angled shape, so that the vertical surface 61 is coupled to the door 1, and the horizontal surface 62 is coupled to the upper coupler 22 of the body 20.

The upper bearing 70 is mounted on the upper and lower portions of the upper coupler 22 of the body 20, respectively.

Here, it should be noted that the upper bearing 70 is not limited to the drawing and that known bearings can be used.

That is, the upper bearing 70 is disposed at the upper and lower portions of the upper coupler 22 of the body 20 and plays a role in allowing the door 1 to rotate smoothly.

The upper fixing nut 80 is coupled to the body 20.

That is, the upper fixing nut 80 is spirally coupled to the upper coupler 22 of the body 20 located above the upper bearing 70.

The upper closing cap 90 is coupled to the body 20.

That is, the upper finishing cap 90 is disposed on the upper part of the upper fixing nut 80 and is finished by fitting into the upper coupling hole 22 of the body 20.

The lower flat plate 100 is located at the lower part of the body 20.

That is, the lower flat plate 100 is formed in a hollow shape and is fitted into the lower coupling hole 23 of the body 20.

Specifically, the lower flat plate 100 is fitted to the lower part of the body 20 and supports the body 20, the internal support member 30, and the close fitting fixture 40 at the lower part.

The door frame coupler 110 is coupled to the door frame 3 and the body 20.

And the door frame coupler 110 is formed in a right-angled shape, the vertical surface 111 is fixed to the door frame 3 through a fastener, and the lower coupler 23 of the body 20 is located inside the horizontal surface 112. A coupling hole 113 that is combined with is formed.

That is, the door frame coupler 110 is formed in a right-angled shape, so that the vertical surface 111 is coupled to the door frame 3, and the horizontal surface 112 is coupled to the lower coupler 23 of the body 20.

The lower bearing 120 is mounted on the upper and lower portions of the lower coupler 23 of the body 20, respectively.

Here, it should be noted that the lower bearing 120 is not limited to the drawing and that known bearings can be used.

That is, the lower bearing 120 is disposed at the upper and lower portions of the lower coupler 23 of the body 20, and plays a role in allowing the door 1 to rotate smoothly.

The lower fixing nut 130 is coupled to the body 20.

That is, the lower fixing nut 130 is spirally coupled to the lower coupler 23 of the body 20 located below the lower bearing 120.

The lower closing cap 140 is coupled to the body 20.

That is, the lower finishing cap 140 is disposed below the lower fixing nut 130 and is finished by fitting into the lower coupler 23 of the body 20.

Next, FIGS. 4 and 5 illustrate another embodiment of a door sagging prevention device for an apartment complex as follows.

First, the door sagging prevention device 10 for an apartment complex shown in FIG. 4 shows an example in which the horizontal roller 150 is mounted on the outer surface of the close fitting fixture 40.

That is, the door sagging prevention device 10 for an apartment complex forms fitting grooves 42 at intervals in the vertical direction of the outer surface 41 of the close fitting fixture 40, and then forms a horizontal roller 150 in the fitting groove 42. ) are each installed to reduce the load due to contact with the door (1) or door frame (3).

Next, the door sagging prevention device 10 for an apartment complex shown in FIG. 5 can increase strength and durability by combining the upper and lower auxiliary supports 160 and lower auxiliary supports 170 of the body 20. It was made to be so.

For this purpose, an auxiliary support part 161 is fixed to the door frame 3 at the upper part of the body 20 and has a fitting protrusion 162 formed on the inside, and one end is fixed to the fitting protrusion 162 of the auxiliary support part 161. and an upper auxiliary support 160 consisting of an auxiliary support plate 163, the other end of which is coupled to the upper coupler 22 located at the bottom of the upper finishing cap 90, is mounted,

At the lower part of the body 20, an auxiliary support portion 171 is fixed to the door 1 and has a fitting protrusion 172 formed on the inside, and one end is fixed to the fitting protrusion 172 of the auxiliary support portion 171 and the other end is fixed to the door 1. A lower auxiliary support 170 consisting of an auxiliary support plate 173 coupled to the lower coupler 23 located on the upper part of the lower finishing cap 140 is mounted.

That is, the door sagging prevention device 10 for an apartment complex is equipped with an upper auxiliary support 160 and a lower auxiliary support 170 on opposite sides of the door coupler 60 and the door frame coupler 110, respectively, This is to prevent the load from becoming eccentric.

An example of the door sagging prevention device for an apartment complex configured as described above is as follows.

First, it is formed in a right-angled shape, the vertical surface 111 is fixed to the door frame 3 through a fastener, and a coupling hole 113 is coupled to the lower coupling hole 23 of the body 20 inside the horizontal surface 112. ) is formed and then installed on the door frame 3 at intervals.

And the upper and lower couplers 22 and 23, which are formed in a cylindrical shape and have spirals 24 formed on the outer surfaces of the ends in the center of the upper and lower parts, form a protruding body 20, respectively.

Then, a horizontal support 31 is formed at the lower end in a hollow shape outside the body 20, and an internal support 30 made of an elastic material is installed, and then the internal support 30 is horizontally positioned. A close fitting fixture (40) is supported on the support jaw (31), penetrates the internal support member (30), and is fixed to the body (20) through a fastener, and the outer surface (41) is in contact with the door (1) or door frame (3). ) is installed.

Next, after mounting the hollow upper flat plate 50 fitted into the upper coupler 22 to the upper part of the body 20, the body 20 located on the upper part of the upper flat plate 50 Fit the upper bearing (70) into the upper coupling hole (22).

And after mounting the hollow lower flat plate 100 fitted into the lower coupler 23 to the lower part of the body 20, the lower part of the body 20 located on the upper part of the lower flat plate 100 is coupled. The lower bearing 120 is fitted and coupled to the sphere 23.

Next, the lower coupler 23 of the body 20 to which the lower bearing 120 is coupled is fitted into the coupler hole 113 of the door frame coupler 110 fixed to the door frame 3, After fitting the lower bearing 120 into the coupler 23 and fixing it by threading the lower fixing nut 130, the lower closing cap 140 is fitted into the lower coupler 23.

And it is formed in a right angle shape to the upper coupler 22 of the body 20, the vertical surface 61 is fixed to the door 1 through a fastener, and the upper part of the body 20 is inside the horizontal surface 62. The door coupler 60 in which the coupler hole 63 is coupled to the coupler 22 is formed.

That is, after fitting the coupling hole 63 of the door coupler 60 into the upper coupler 22 of the body 20, adjusting the position of the door coupler 60, and then adjusting the position of the door coupler 60, the vertical surface 61 ) to secure the door coupler (60) to the door (1).

Next, the upper bearing 70 is fitted into the upper coupling hole 22 of the body 20 to which the upper bearing 70 is coupled, and then the upper fixing nut 80 is screwed and fixed, and then the upper coupling is connected. When the upper finishing cap 90 is fitted and joined to the sphere 22, the assembly of the door sagging prevention device 10 for an apartment complex is completed.

Here, it is revealed that the assembly sequence of the door sagging prevention device for an apartment complex may proceed differently from the above.

Thereafter, the door sagging prevention device 10 for an apartment complex can be installed between the door 1 and the door frame 3 using the same method as described above.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations can be made by those skilled in the art without departing from the essential characteristics of the present invention.

Accordingly, the embodiments expressed in the present invention do not limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas that are equivalent or within the equivalent scope should be construed as being included in the scope of rights of the present invention.

20: body 22: upper coupler
23: lower coupler 24: spiral
30: Internal support 31: Horizontal support jaw
40: close fitting fixture 41: outer surface
42: Fitting groove
50: upper flat plate
60: Door coupler 61: Vertical surface
62: horizontal plane 63: coupling hole
70: upper bearing
80: upper fixing nut
90: upper closing cap
100: lower flat plate
110: door frame coupler 111: vertical plane
112: horizontal surface 113: coupling hole
120: lower bearing
130: lower fixing nut
140: Lower closing cap
150: horizontal roller
160: upper auxiliary support 161: auxiliary support
162: Fitting projection 163: Auxiliary support plate
170: lower auxiliary support 171: auxiliary support
172: Fitting projection 173: Auxiliary support plate

Claims (3)

A body 20 in which upper and lower coupling spheres 22 and 23 with spirals 24 formed on the outer surfaces of the ends protrude from the center of the upper and lower parts;
an internal support member (30) mounted on the outside of the body (20) and having a horizontal support jaw (31) formed at its lower end;
A close fitting fixture 40 that is supported on the horizontal support ledge 31, penetrates the internal support, and is fixed to the body 20 through a fastener, and the outer surface 41 is in contact with the door 1 or the door frame 3. ;
An upper flat plate (50) located on the upper part of the body (20) and fitted into the upper coupler (22);
It is formed in a right-angled shape, the vertical surface 61 is fixed to the door 1 through a fastener, and a coupling hole 63 is coupled to the upper coupling hole 22 of the body 20 inside the horizontal surface 62. A door coupler formed (60);
An upper bearing (70) fitted into the upper coupler (22) located above and below the horizontal surface (62) of the door coupler (60);
An upper fixing nut (80) threaded to the upper coupler (22) located on the upper part of the upper bearing (70);
An upper finishing cap (90) disposed on the upper part of the upper fixing nut (80) and closing the upper coupler (22) of the body (20);
A lower flat plate 100 located at the lower part of the body 20 and fitted into the lower coupler 23;
It is formed in a right-angled shape, the vertical surface 111 is fixed to the door frame 3 through a fastener, and a coupling hole 113 is coupled to the lower coupling hole 23 of the body 20 inside the horizontal surface 112. A door frame coupler is formed (110);
a lower bearing 120 fitted into the lower coupler 23 located above and below the horizontal surface 112 of the door frame coupler 110;
A lower fixing nut (130) helically coupled to the lower coupler (23) located at the lower part of the lower bearing (120); and
It includes a lower finishing cap 140 disposed below the lower fixing nut 130 and closing the lower coupler 23 of the body 20,
At the upper part of the body 20, there is an auxiliary support part 161 fixed to the door frame 3 and formed with a fitting protrusion 162 on the inside, and one end is fixed to the fitting protrusion 162 of the auxiliary support part 161 and the other end is fixed to the door frame 3. An upper auxiliary support 160 consisting of an auxiliary support plate 163 coupled to the upper coupler 22 located at the lower part of the upper finishing cap 90 is mounted,
At the lower part of the body 20, an auxiliary support portion 171 is fixed to the door 1 and has a fitting protrusion 172 formed on the inside, and one end is fixed to the fitting protrusion 172 of the auxiliary support portion 171 and the other end is fixed to the door 1. A door sagging prevention device for an apartment complex, characterized in that it is equipped with a lower auxiliary support member (170) consisting of an auxiliary support plate (173) coupled to the lower coupler (23) located on the upper part of the lower finishing cap (140).
In claim 1,
A door sagging for an apartment complex, characterized in that fitting grooves 42 are formed at intervals in the vertical direction on the outer surface 41 of the close fitting fixture 40, and horizontal rollers 150 are installed in each of the fitting grooves 42. prevention device.
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