KR20200132072A - Door framework structure - Google Patents

Abstract

Disclosed is a frame structure for doors and windows, which provides a foundation in which the doors and the windows are installed. The frame structure for doors and windows includes: a first frame on which a door frame at an outer side of the doors and the windows is mounted; and a second frame having a stepped portion higher than that of the first frame so that a vertical surface in a shape of stairs is formed on the first frame and extended from the first frame in a width direction, wherein the second frame is arranged in an inner direction around an installation surface of the doors and the windows so that a boundary surface of the door frame in contact with the first frame is covered by the vertical surface when the doors and the windows are seen in the inner direction.

Description

Window frame structure {DOOR FRAMEWORK STRUCTURE}

The present invention relates to an empty frame structure for windows and doors, and to an empty frame structure for windows and doors having not only an installation location and a window standard, but also an integrated system can be applied, as well as having a design aesthetic and various functions.

In general, empty frames for windows are used to finish the space between walls, floors, ceilings and windows where windows are installed.

These blank frames for windows are considered to be very important in that they not only have essential functions for building finishes such as insulation effects, but also can realize aesthetic aspects through beautiful designs. 1 to 2 are views showing a separate empty frame and an integrated empty frame, respectively, among the conventionally commercialized empty frames for windows and doors.

In the case of a conventional empty frame, it can be divided into a separate empty frame 20 applied to the window (W, Fig. 1) and an integral empty frame (20D) applied to the door (D, Fig. 2), and is applied according to each use and standard. .

As shown in FIG. 1, the conventional separable empty frame 20 forms an external natural discharge structure through the condensation water discharge hole formed on the inverted slope 22.

However, in the case of the actual use case, in the case of the conventional separable empty frame 20, the inflow of outside air through the condensation water discharge hole as a direct cause of the generation of condensation water around the empty frame in winter, and the decrease in insulation performance due to the lack of a compartment in the empty frame have been pointed out. As a result, an area (S1) where condensation water is generated around the empty frame, and problems such as the growth of mold due to the deepening of the condensation phenomenon occurred.

In addition, in the case of the conventional empty frame 20, a stepped step is formed so that the door frame 10 is caught and fixed in the inner front end region S2 of the portion where the door frame 10 of the window is seated.

The above stepped step is significant in that it is possible to easily set the position of the door frame 10 during window processing, but when hardware is mounted on the lower part of the door frame 10 when the system window is applied, interference between the step and hardware is caused by the stepped area S2. As shown in Fig. 2, it is mainly applied to doors D such as turning doors to which the conventional integrated empty frame (20D) hinge (H) is applied, but silicon Due to the problem that the finishing area (S3) where the finishing (3) should be performed is located deeply in the hinge (H) and the door frame (10D) without being exposed to the outside, there has been a limit to realizing the beautiful finish that the empty frame should have.

Therefore, research and development of a new frame structure for windows and doors that can solve the problems of the conventional blank frame for windows and doors as described above is required.

The problem to be solved by the present invention is to provide an empty frame structure for windows and doors having not only an integrated system, but also design aesthetics and various functions, regardless of the installation location and window standard.

Meanwhile, the technical problem to be solved by the present invention is not limited to the above-described technical problem, and other technical problems that are not mentioned will be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. I will be able to.

In the empty frame structure for windows and doors according to the present invention for solving the above technical problem, in the empty frame structure for windows and doors providing a foundation for installing the windows, the first frame on which the door frame outside the window is seated; And a second frame extending in the width direction from the first frame with a step higher than the first frame so that a stepped vertical surface is formed on the first frame, wherein the second frame The boundary surface of the door frame, which is disposed in the inner direction relative to the surface, and comes into contact with the first frame when the window is viewed from the inner direction may be covered by the vertical surface.

In this case, the empty frame structure for windows is applied to a location including any one of a floor, a ceiling, and a wall, and may be applied in the same form to all locations corresponding to both sides, upper, and lower door frames of the window.

In addition, the first frame may include a sloped surface formed to have an inclination at one end portion along a width direction positioned on the opposite side of the second frame.

In addition, the first frame and the second frame may include a plurality of partition walls that divide each internal space into six or more divided compartments.

On the other hand, the door frame, a first door frame that is fixedly coupled to an edge portion of the window and moves together when the window is opened or closed; And a second door frame that is fixedly coupled to the first frame to support the first door frame when the window is closed, and separate from the first door frame when the window is open.

Here, the second door frame may be coupled to the first frame through screw coupling.

In addition, the second door frame includes a plurality of ribs protruding toward the first frame, and the first frame includes a plurality of protrusions formed at positions corresponding to the ribs so that the ribs are engaged with each other to be coupled. It includes three locking protrusions, and the second door frame may be coupled to the first frame through engagement between the rib and the locking protrusion.

Subsequently, the empty frame structure for windows and doors may include a locking unit that provides a fixing force so that the first door frame can be fixed on the second door frame while the window is closed.

In addition, the empty frame structure for windows and doors may further include a middle frame disposed between the door frame and the first frame.

In this case, the middle frame may be provided to have various heights according to the standard of the window and the door frame, or an installation location.

The middle frame includes a plurality of locking protrusions fixed on the first frame and protruding at positions corresponding to the ribs so that the plurality of ribs are engaged and coupled to each other, and the second door frame It may be coupled to the middle frame through the engagement of the rib and the locking protrusion.

On the other hand, in the empty frame structure for the window, when the window and the door frame have a hinge, the front end of the first frame positioned in a direction in which the window is rotated with respect to the installation surface of the window is the same as the hinge. It can be arranged to be exposed on board or beyond.

Subsequently, the frame structure for windows and doors further includes an expansion unit for combining two or more adjacent blank frame structures for windows and doors through a male and female combination, and expansion coupling for connecting two or more windows through two or more combinations may be possible.

In this case, the expansion unit may include: a first expansion unit inserted and fixed into a lower groove provided in any one of the two or more empty frame structures for windows and doors adjacent to each other; And a second expansion unit inserted and fixed into a lower groove provided in another second frame among two or more empty frame structures for windows and doors adjacent to each other.

In addition, the first expansion unit includes an anchor protruding and having a locking projection, and the second expansion unit includes an anchor hook having a locking projection formed to engage the locking projection of the anchor when the anchor is inserted. Including, the first expansion unit and the second expansion unit may be fixed to each other through a male and female coupling into which the anchor is inserted between the anchor hooks, so that two or more empty frame structures for windows adjacent to each other may be coupled.

The empty frame structure for windows and doors according to the present invention having the above-described configuration has the following effects.

First, it is possible to install windows through an integrated system regardless of the installation location and specifications of the windows through high compatibility.

In addition, when viewed from the inside, the interface between the door frame and the empty frame is not exposed to the outside, thereby providing improved aesthetics.

In addition, condensation water can be easily discharged, prevent the inflow of rainwater, and provide various functions, such as having high insulation properties.

Furthermore, it is possible to provide an extension system in which multiple windows are connected through mutual coupling between blank frames.

Meanwhile, the effects of the present invention are not limited to the above-mentioned effects, and other effects that are not mentioned will be clearly understood by those of ordinary skill in the art from the description of the claims.

1 to 2 show a conventional blank frame for windows and doors that are commercially available.
3 to 4 show the structure of the empty frame for windows and doors according to the present invention.
Figure 5 shows the structure of an empty frame for windows and doors according to the present invention to which a locking unit is applied.
6 to 7 show a method of combining the frame structure for windows and doors and the door frame according to the present invention.
8 to 10 show examples of a frame structure for windows and doors according to the present invention to which a middle frame and a middle frame are applied.
11 shows an example in which the frame structure for windows and doors according to the present invention is applied when the specifications of the windows and doors are changed.
12 shows an example in which the empty frame structure for windows and doors according to the present invention is applied equally regardless of the opening and closing direction of the windows.
13 shows the aesthetic and functional effects that can be provided to the first frame by the shape characteristics when applying the frame structure for windows and doors according to the present invention.
14 to 15 show the configuration of the expansion coupling and expansion unit of the frame structure for windows and doors according to the present invention.

Hereinafter, an embodiment of the present invention in which the object of the present invention may be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same names and the same reference numerals are used for the same components, and additional descriptions thereof will be omitted.

In addition, in describing the present embodiment, the configuration shown in the drawings is only an example to aid understanding of the detailed description, and thus it is specified that the scope of the rights is not limited.

As shown in FIG. 3, the empty frame structure 200 for windows and doors according to this embodiment provides the basis for installing the windows 1 and will be configured to include a first frame 210 and a second frame 220. I can.

The first frame 210 constitutes a part of the empty frame structure 200 for windows and doors, and may have a seating surface on which the door frame 100 forming the outer periphery of the window 1 is mounted.

Here, the door frame 100 is fixedly coupled to the edge portion of the window 1 and is fixedly coupled to the first door frame 110 that moves together when the window 1 is opened and closed, and is fixedly coupled to the seating surface of the first frame 110. 1) In a closed state, the first door frame 110 may be supported, and when the window 1 is open, a second door frame 120 separated from the first door frame 110 may be included.

The second frame 220 may have a step higher than the first frame 210 so that a vertical surface is formed on the seating surface of the first frame 210 and extend in the width direction from the first frame 210.

At this time, the second frame 220 is disposed in the interior (indoor) direction with respect to the installation surface of the window 1, and comes into contact with the first frame 210 when looking at the window 1 from the interior direction. The boundary surface of the door frame 100 may be covered by a vertical surface and may not be exposed to the outside.

That is, the lower boundary surface of the door frame 100 may be covered by the stepped region S4 formed by the step difference between the first frame 210 and the second frame 220 so as to be invisible from the outside.

Through this, the frame structure 200 for windows and doors according to the present embodiment can have a design element that can feel a sense of unity with the door frame 100, and is clean compared to when the interface of the door frame 100 is exposed to the outside. It is possible to provide an aesthetic feeling and a wider sense of space.

Furthermore, through the application of a staircase-shaped design in which the second frame 220 disposed toward the interior side supports the door frame 100 by a step, it is possible to have a solid structure against external wind pressure.

In addition, in the case of the first frame 210, a sloped surface at one end portion along the width direction positioned on the opposite side of the second frame 220, that is, in the outer (outdoor) direction with respect to the installation surface of the window 1 (212) may be formed.

This inclined surface 212 may be formed to have an inclination by a predetermined inclination θ from the seating surface of the first frame 210 on which the door frame 100 is seated, and the condensation formed on the window 1 is the door frame 100 After falling on the first frame 210 along the ), it may flow down to the outside by the inclination of the slope surface 212.

In addition, the empty frame structure 200 for windows and doors according to the present embodiment may include a multi-compartment structure of 6 or more compartments as a configuration for providing improved insulation performance.

More specifically, the first frame 210 and the second frame 220 are provided with a plurality of partition walls 240 dividing each of the inner spaces, and the first frame 210 and the second frame 220 Each internal space may be divided into six or more compartments 242 by a plurality of partition walls 240.

In this way, through the multi-compartment structure of the plurality of compartments 242, the frame structure 200 for windows and doors according to the present embodiment can not only improve insulation performance, but also suppress the occurrence of condensation in winter.

In addition, a reinforcing material may be partially inserted into the compartment 242 so that the strength and durability of the first frame 210 and the second frame 220 may be improved.

And the empty frame structure 200 for windows according to the present embodiment is applied to a location including any one of a floor, a ceiling, and a wall, but is applied in the same form to all locations corresponding to both sides, top, and bottom of the window (1). I can.

As shown in Figure 4, the empty frame structure 200 for windows according to this embodiment does not change the shape or standard even when the window 1 is installed on the wall surface 2 corresponding to the side surface of the turning door in the form of a door. It can be applied with the same system as when it is installed on the floor or ceiling.

In other words, windows (1) and door frames (100) with different specifications using the same system without changing the system according to both when the window (1) is applied as a double-glazed window or a triple-glazed window and that the window (1) is a door type. ) Can provide a foundation on which to be installed.

In particular, in the case of the empty frame structure 200 for windows and doors according to the present embodiment, unlike the conventional empty frame (20D, see FIG. 2), it may be provided to be exposed to the outside of the hinge (H) of the finish area (S5) where the silicon finish (3) should be performed have.

For example, when the window 1 and the door frame 100 have a hinge H, the first frame 210 positioned in the direction in which the window 1 rotates based on the installation surface of the window 1 It may be disposed so that the tip portion is exposed to the outside of the hinge (H) on the same line or more.

Through this, it is possible to secure a work space independent from the frame of the wall surface 2, so that the silicone finish 3 becomes easy, and both the overall finishing process and the construction work can be facilitated.

Further, in the case of the conventional empty frame (20D, see Fig. 2), when applied to the turning door, the door frame 10D of the standard to which the hinge H can be mounted is required, whereas the empty frame structure 200 for windows and doors according to this embodiment is By forming a housing for mounting the hinge (H) directly on the window (1) and door frame (100), there is no need to change the configuration or additional configuration.

And, as shown in Figure 5, the empty frame structure 200 for windows according to the present embodiment has a fixing force so that the first door frame 110 can be fixed on the second door frame 120 when the window 1 is closed. It may be configured to further include a locking unit 140 to provide.

As mentioned above, the door frame 100 is fixedly coupled to the rim of the window 1 and is fixedly coupled to the first door frame 110 moving together when the window 1 is opened and closed, and on the seating surface of the first frame 110. When the window 1 is closed, the first door frame 110 is supported, and when the window 1 is open, a second door frame 120 separated from the first door frame 110 may be included.

The locking unit 140 includes a first guide 142 inserted into a guide slot formed inside the first door frame 110, and a second guide 144 fixed to the inside of the second door frame 120, and a first guide ( A fixing member 146 disposed between the 142 and the second guide 144 may be provided.

At this time, the first guide 142 may be fixed to the inside of the first door frame through the screw member 148 in the state inserted into the guide slot, and similarly, the second guide 144 is also a second guide through the screw member 148. It may be fixed to the inside of the door frame, and the fixing member 146 may be provided to generate a fixing force in a state in which the first guide 142 and the second guide 144 are in contact.

Meanwhile, as shown in FIG. 6, the second door frame 120 of the door frame 100 may be fixed on the first frame 210 through screw 250 coupling.

In addition, as shown in FIG. 7, the second door frame 120 of the door frame 100 may be provided to be fixed on the first frame 210 through mutual coupling of the rib 130 and the locking protrusion 260.

Here, a plurality of ribs 130 may be formed to protrude toward the first frame 210 and may be formed along a boundary surface of the second door frame 120 in contact with the first frame 210.

In addition, a plurality of the locking protrusions 260 may be formed to protrude on the mounting surface of the first frame 210 corresponding to the position of the rib 130 so as to be engaged with the rib 130 to be coupled.

At this time, each end portion of the rib 130 and the locking protrusion 260 is provided with a locking protrusion that can be hooked and fixed to each other, and the second door frame 120 is formed by engaging the rib 130 and the locking protrusion 260. It may be combined on one frame 210.

In addition, as shown in Figure 8, the frame structure for windows and doors according to the present embodiment is disposed between the first frame 210 and the door frame 100 so that the windows 1 and door frames 100 of various standards can be applied. It may be configured to further include the middle frame (300, 400).

These middle frames (300, 400) are provided to have various heights according to the standard or installation location of the window (1) and door frame (100), and between the door frame (100) and the first frame (210) of the window (1) The height and position at which the door frame 100 is mounted on the first frame 210 may be adjusted by being disposed in the door frame 100.

For example, in order to increase the height at which the door frame 100 is seated, a middle frame having a height h1 relatively higher than the step difference between the first frame 210 and the second frame 220 as shown in FIG. 8A ( 300) can be applied.

9 shows an example of applying the empty frame structure 200 for windows and doors including the middle frame 300 to a 70mm system.

When applied to the 70mm system as shown in FIG. 9, the middle frame 300 has a height that is relatively higher than the step difference between the first frame 210 and the second frame 220, and the door frame 100 and the first frame It may be disposed between 210.

At this time, the middle frame 300 is fixed on the first frame 210 and protrudes at a position corresponding to the rib 130 so that the plurality of ribs 130 provided in the second door frame 120 can be engaged and coupled to each other. A plurality of locking protrusions 310 are formed, and the second door frame 120 may be fixed on the middle frame 300 through mutual engagement of the ribs 130 and the locking protrusions 310.

In addition, the middle frame 300 may also include a partition wall 320 that divides the inner space into a plurality of compartments 322.

In the above case, the boundary surface of the door frame 100 may be exposed outside the vertical surface of the step shape by the height of the middle frame 300, and accordingly, the finishing cap and the hardware 30 can be mounted without interference to the vertical surface of the step shape. There will be.

In particular, the middle frame 300 can replace the conventional empty frame 20 (see Fig. 1) when the 70mm system is applied, and unlike the conventional empty frame 20, the door frame 100 of the window 1 is seated. Since there is no configuration that causes interference in the tip region S6 located on the same line as the vertical plane of the step shape, it may be possible to accommodate various hardware products.

On the other hand, in the case of the middle frame 400 having a height h2 relatively lower than the step difference between the frame 210 and the second frame 220 as shown in FIG. 8B, the side door frame 100 of the window 1 ) Can be effective when applied to the wall on which it is mounted.

As shown in FIG. 10, the middle frame 400 applied to the wall surface determines the height and position of the door frame 100 seated on the first frame 210 without exposing the boundary surface of the door frame 100 outside the vertical surface of the step shape. Can be adjusted.

In this case, the middle frame 400 is also fixed on the first frame 210 in the same way as before, and the ribs 130 are engaged with the plurality of ribs 130 provided in the second door frame 120 to be coupled to each other. A plurality of locking protrusions 410 protruding at corresponding positions are provided, and the second door frame 120 may be fixed on the middle frame 400 through mutual engagement of the rib 130 and the locking protrusion 410. have.

In addition, the middle frame 400 may also include a partition wall 420 that divides the inner space into a plurality of compartments 422.

On the other hand, as shown in Fig. 11, when the frame structure 200 for windows and doors according to the present embodiment is applied to an 80mm system, the window 1 and the door frame 500 of the 80mm system standard without the middle frames 300 and 400 It may be provided to be directly seated on the first frame 210.

As described above, the empty frame structure 200 for windows and doors according to the present embodiment includes a door frame 100 having various standards through the addition of stepped steps of the first frame 210 and the second frame 220 and the middle frames 300 and 400. ) Can be applied.

In addition, as shown in Fig. 12, the empty frame structure 200 for windows according to the present embodiment has a system A and an external direction including a door frame 100A in which the window 1 is opened toward the inside. It can be integratedly applied to all of the system B for outside opening including the door frame 100B in which the window 1 is opened.

Further, as shown in FIG. 13, when the slope surface 212 of the first frame 210 is applied to the ceiling of the system for external heating, it may prevent the intrusion of rainwater (RW) that may be introduced from the outside. In addition, when looking at the door frame 100 of the window 1 from the outer wall 2 side, the boundary surface of the door frame 100 can be checked through the gradient surface 212 formed at the front end of the first frame 210. It is possible to provide a more expanded sense of space.

Subsequently, as shown in FIG. 14, the frame structure 200 for windows and doors according to the present embodiment further includes an expansion unit 600 for combining two or more adjacent frame structures 200A and 200B for windows and doors through male and female coupling, and , It may be possible to extend the combination of connecting two or more windows (1) through two or more combinations.

Here, the expansion unit 600 is a first expansion that is inserted and fixed in the lower groove 270 provided in the second frame 210 of any one of two or more window frame structures adjacent to each other as shown in FIG. 15 The unit 610 may include a second expansion unit 620 inserted and fixed in the lower groove 270 provided in the second frame 210 of the other 200B among two or more empty frame structures for windows and doors adjacent to each other. .

At this time, fixing grooves 612 and 622 are formed on both sides of the first expansion unit 610 and the second expansion unit 620, respectively, and fixing grooves are provided on the inner surface of the lower groove 270 of the second frame 210. Fixing protrusions 272 corresponding to 612 and 622 are formed, and when the first expansion unit 610 and the second expansion unit 620 are inserted into the lower groove 270, the fixing protrusion 272 is fixed groove It may be coupled to the lower groove 270 by being hooked and fixed to the 612 and 622 respectively.

In addition, the first expansion unit 610 includes an anchor 614 protruding with a locking protrusion, and the second expansion unit 620 is formed to engage the locking protrusion of the anchor 614 when the anchor 614 is inserted. Each of the jaws may include a pair of anchor hooks 624 disposed to face each other.

As described above, the expansion unit 600 including the first expansion unit 610 and the second expansion unit 620 is fixed to each other through a male and female coupling in which the anchor 614 is inserted between the anchor hook 624, so that two or more adjacent windows It is possible to expand and combine the empty frame structure (200A, 200B).

Through this, the empty frame structure 200 for windows and doors according to the present embodiment not only enables expansion coupling through the inner coupling of the second frame 220, but also the ease of construction and the internal design of the interior design because a coupling member such as screws is not used. It can bring about improvement.

As described above, one embodiment according to the present invention has been looked at, and the fact that the present invention can be embodied in other specific forms without departing from its spirit or scope other than the above-described embodiments is known to those skilled in the art. This is obvious to them.

Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the above description and may be modified within the scope of the appended claims and equivalents thereof.

1: windows
100: door frame
200: empty frame structure for windows and doors
210: first frame
220: second frame
300, 400: middle frame
600: expansion unit

Claims (15)

In the empty frame structure for windows and doors that provide a foundation for installing windows and doors,
A first frame on which a door frame outside the window is mounted; And
And a second frame extending in the width direction from the first frame with a step higher than the first frame so that a stepped vertical surface is formed on the first frame,
The second frame is disposed in an inner direction with respect to the installation surface of the window, and when the window is viewed from the inner direction, the boundary surface of the door frame that comes into contact with the first frame is covered by the vertical surface. With
Frame structure for windows and doors.
The method of claim 1,
The empty frame structure for windows and doors,
It is applied to a location including any one of a floor, a ceiling, and a wall, but it is characterized in that it can be applied in the same form to all locations corresponding to the door frames on both sides of the window, above, and below.
Frame structure for windows and doors.
The method of claim 1,
The first frame,
It characterized in that it comprises a gradient surface formed to have an inclination at one end portion along the width direction positioned on the opposite side of the second frame
Frame structure for windows and doors.
The method of claim 1,
The first frame and the second frame,
It characterized in that it comprises a plurality of partition walls that divide each inner space into six or more divided compartments.
Frame structure for windows and doors.
The method of claim 1,
The door frame,
A first door frame that is fixedly coupled to an edge portion of the window and moves together when the window is opened or closed; And
And a second door frame that is fixedly coupled to the first frame to support the first door frame when the window is closed, and separate from the first door frame when the window is open.
Frame structure for windows and doors.
The method of claim 5,
The second door frame,
Characterized in that it is coupled on the first frame through screwing
Frame structure for windows and doors.
The method of claim 5,
The second door frame,
It includes a plurality of ribs protruding toward the first frame,
The first frame,
And a plurality of locking protrusions protruding at positions corresponding to the ribs so that they can be engaged and coupled with the ribs,
The second door frame is coupled to the first frame through the engagement of the rib and the locking protrusion.
Frame structure for windows and doors.
The method of claim 5,
The empty frame structure for windows and doors,
And a locking unit that provides a fixing force so that the first door frame can be fixed on the second door frame while the window is closed.
Frame structure for windows and doors.
The method of claim 5,
The empty frame structure for windows and doors,
It characterized in that it further comprises a middle frame disposed between the door frame and the first frame
Frame structure for windows and doors.
The method of claim 9,
The middle frame,
It characterized in that it is provided to have various heights according to the standard of the window and the door frame, or the installation location
Frame structure for windows and doors.
The method of claim 10,
The middle frame,
And a plurality of locking protrusions fixed on the first frame and protruding at positions corresponding to the ribs so as to be engaged and coupled with the plurality of ribs,
The second door frame is coupled to the middle frame through the engagement of the rib and the locking protrusion.
Frame structure for windows and doors.
The method of claim 2,
The empty frame structure for windows and doors,
When the window and the door frame have a hinge, the front end of the first frame positioned in the direction in which the window rotates relative to the installation surface of the window is arranged to be exposed to the outside of the same line as the hinge or more Characterized by being
Frame structure for windows and doors.
The method of claim 1,
The empty frame structure for windows and doors,
Further comprising an expansion unit that combines two or more adjacent blank frame structures for windows and doors through a male and female combination,
It characterized in that it is possible to extend the combination of two or more windows through the combination of two or more
Frame structure for windows and doors.
The method of claim 13,
The expansion unit,
A first expansion unit inserted and fixed into a lower groove provided in any one of the two or more empty frame structures for windows and doors adjacent to each other; And
It characterized in that it comprises a second expansion unit inserted and fixed to the lower groove provided in the second frame of the other of two or more adjacent to each other of the frame structure for windows and doors
Frame structure for windows and doors.
The method of claim 14,
The first expansion unit,
Includes an anchor formed protruding and having a locking jaw,
The second expansion unit,
When the anchor is inserted, it includes an anchor hook having a locking jaw formed to engage the locking jaw of the anchor,
The first expansion unit and the second expansion unit are fixed to each other through a male and female coupling into which the anchor is inserted between the anchor hooks, thereby coupling two or more adjacent frame structures for windows and doors.
Frame structure for windows and doors.

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