KR20200132062A - Connection bracket replacement window frame - Google Patents

Abstract

The present invention relates to a window frame with a replaceable connection bracket, which is provided with an inner frame having a dent groove with a tube shape formed to be dented on a front surface, detachably and attachably inserts and couples the connection bracket, having a fitting groove on a front surface thereof, into the dent groove of the inner frame, and allows sheets of glass to come into close contact with both surfaces of the fitting groove of the connection bracket for installing an insulator partitioning the sheets of glass, thereby replacing the connection bracket, coupled to the dented groove of the inner frame, to correspond to the shape of the insulator such that the insulators with various shapes can be connected to the inner frame. The present invention can easily replace the connection bracket, connected to the inner fame, to correspond to the shape of the insulator, connect the insulators with various shapes to the inner frame due to replacement of the connection bracket, easily replace the insulator due to replacement of the connection bracket to shorten work time, replace the connection bracket from the inner frame by separation when the connection bracket, into which the insulator is fitted, is damaged to save maintenance costs, and save manufacturing costs by manufacturing the replaceable connection bracket fitted into the inner frame, thereby enhancing product reliability.

Description

Connection bracket replacement window frame

The present invention relates to a window frame, and more particularly, to a connection bracket replacement type window frame that can be replaced by a connection bracket that connects the inner frame and the insulation material to the connection bracket corresponding to the shape of the insulation material.

In general, a wall frame is provided on a wall of a building such as a building, for example, a non-bearing wall such as a curtain wall, and the wall frame is formed in a long bar shape to form a wall structure (for example, an exterior panel of a window or wall. ) Support.

Here, on the wall of a building called a curtain wall, a window is installed that serves to secure a view and illuminate the room by sunlight, and the window is supported by a wall frame that is elongated in a horizontal or vertical direction.

Such curtain walls block rain and wind from the outside of the building and block noise or heat, and are used as a material with a light weight so that the thickness of the pillars or beams of the building is less affected.

Patent Document 1 shows a conventional heat-insulating window, and referring to this, the upper and lower portions are opened in the shape of a hollow tubular body, the rear support member having a pair of insertion grooves facing each other on one side, and the rear support member It consists of a connecting portion inserted into the insertion groove, a rear supporting member and a front supporting member installed opposite to each other, and a heat insulating portion installed to connect between the connecting portion and the front supporting member.

Here, the connection gasket of the connection part is inserted and coupled to the insertion groove of the rear support member, and a connection body is installed at the other end of the connection gasket to connect the connection body and the front support member with a heat insulation part, thereby connecting the connection part and the front support member. It becomes.

That is, after the outside air is transmitted to the front support member, it is blocked from flowing into the room by being blocked by the heat insulating part, and the indoor air is blocked from being discharged to the outside by being blocked by the connection gasket.

However, in Patent Document 1 as described above, since the front shape of the rear support member is determined during the manufacturing process, it is impossible to change the front shape of the rear support member, and the shape is fixed to correspond to the shape of the connection part, so that the installation of a connection part having a different shape It is impossible, and when installing a connection part having a different shape, a rear support member having a shape corresponding to the connection part must be separately manufactured, and the manufacturing cost is increased by manufacturing a rear support member having various shapes. In particular, the front side of the rear support member When the shape is deformed, maintenance costs are increased by replacing the entire rear support member, and thus, reliability of the product is deteriorated.

KR 10-1016315 B1

The present invention is to solve the above-described problems, the object of the present invention is provided with an inner frame having a recessed groove formed in the front in a tubular shape, and forming a fitting groove in the front of the recessed groove of the inner frame By inserting and connecting one connection bracket so that it can be detached and attached, and by attaching the glass to both sides of the connection bracket, and installing an insulation material that partitions the glass, the connection bracket that is coupled to the recessed groove of the inner frame is fitted to the shape of the insulation material. By replacing so as to correspond, it is to provide a connection bracket replacement type window frame that can connect the insulating material having various shapes to the inner frame.

In order to achieve the object of the present invention as described above, the connection bracket replacement type window frame according to the present invention is installed along the open edge of the building in a hollow tubular shape with open upper and lower parts, and is recessed in the front. An inner frame formed with a recessed groove; A connection bracket that is detachably inserted and coupled to the recessed groove of the inner frame and formed with a fitting groove on the front surface thereof; It is fitted into the fitting groove of the connection bracket, and a heat insulating material that partitions the glass by allowing the glass to adhere to both sides thereof.

In the connection bracket replacement type window frame according to the present invention, the inner frame is installed along the open rim of the building in the shape of a hollow tubular body in which the upper and lower portions are opened, and has a recessed groove formed in the front; A connection bracket that is detachably inserted and coupled to the recessed groove of the inner frame and formed with a fitting groove on the front surface thereof; An outer frame installed in an outdoor direction so as to face the inner frame and having a reverse fitting groove opposite to the fitting groove on one surface facing each other with the connection bracket; It characterized in that consisting of; a heat insulating material that is fixed to both ends of each of the fitting groove and the reverse fitting groove to connect between the connection bracket and the outer frame.

In the window frame for replacement of the connection bracket according to the present invention, a locking jaw is protruding from an inner wall of the depression groove of the inner frame, and the connection bracket is inserted into the depression groove on one side thereof, and one end thereof is caught in the locking jaw. It characterized in that it forms a locking protrusion to be fixed.

In the connection bracket replacement type window frame according to the present invention, the locking protrusion is formed to be inclined downward from an upper end to a lower end, and guides the locking protrusion to move in a downwardly inclined direction so that the locking protrusion is engaged with the locking protrusion. It is characterized by further forming an inclined surface.

In the window frame for replacement of the connection bracket according to the present invention, the recessed groove of the inner frame further forms a coupling protrusion protruding in the direction of the locking projection on an inner wall opposite to the locking projection, and the connection bracket includes the locking projection and It is characterized in that it is inserted and coupled to the coupling protrusion on the other side of the opposite side, characterized in that further forming an insertion groove for supporting the locking protrusion to rotate toward the locking projection.

In the window frame for replacement of the connection bracket according to the present invention, a buffer member is further formed between the inner frame and the connection bracket to prevent the vibration of the inner frame from being transmitted to the connection bracket.

In the window frame for replacement of the connection bracket according to the present invention, the buffer member is a plate made of rubber material or a leaf spring bent in a predetermined shape to correspond to a shape of a gap between the inner frame and the connection bracket. .

In the window frame for replacement of the connection bracket according to the present invention, the insulating material is characterized in that at one end, a fitting protrusion to be fitted into the fitting groove of the connection bracket is formed, and a space formed through the upper and lower portions is further formed on the inside. do.

In the window frame for replacement of the connection bracket according to the present invention, the heat insulating material is formed to correspond to each other at both ends to form a fitting protrusion to be fitted into the fitting groove and the reverse fitting groove, and a space portion further formed inside do.

According to the present invention, the connection bracket coupled to the inner frame can be easily replaced to correspond to the shape of the insulation, and insulation having various shapes can be connected to the inner frame due to the replacement of the connection bracket. Work time is shortened because it can be easily replaced, and maintenance costs are reduced by removing and replacing the connection bracket from the inner frame when the connection bracket to which the insulating material is inserted is damaged, and manufacturing cost is reduced by making a replacement connection bracket that is inserted into the inner frame. It is reduced, and thus, there is an advantage in that the reliability of the product is improved.

1 is a perspective view showing a connection bracket replacement type window frame according to a first embodiment of the present invention.
Figure 2 is an exploded perspective view of Figure 1;
3 is a plan view of a window frame for replacement of a connection bracket according to a first embodiment of the present invention.
Figure 4 is a perspective view showing a connection bracket replacement type window frame according to a second embodiment of the present invention.
Figure 5 is an exploded perspective view of Figure 4;
6 is a plan view of a window frame for replacement of a connection bracket according to a second embodiment of the present invention.

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

[First embodiment]

1 to 3, the inner frame 100 is installed along the open edge of the building in the shape of a hollow tubular body in which the upper and lower portions are open, and forms a recessed groove 101 formed in the front.

The inner frame 100 allows the connection bracket 200 to be fitted and fixed in the recessed groove 101.

A locking protrusion 101a is formed on the inner wall of the recessed groove 101 of the inner frame 100.

The locking projections 101a allow the locking projections 101a of the connection bracket 200 to be locked and fixed.

The locking protrusion 101a is formed to be inclined downward from the upper end to the lower end, and guides the locking protrusion 202 to move in a downwardly inclined direction so that the locking protrusion 202 is engaged with the locking protrusion 101a. An inclined surface 101a-1 is further formed.

The inclined surface 101a-1 induces the locking protrusion 202 to slide down in a downwardly inclined direction.

The recessed groove 101 of the inner frame 100 further forms an engaging protrusion 101b protruding in the direction of the locking projection 101a on an inner wall opposite to the locking projection 101a.

The coupling protrusion 101b supports the rotation of the other side of the connection bracket 200 by allowing the insertion groove 203 of the connection bracket 200 to be inserted.

The connection bracket 200 is inserted and coupled to the recessed groove 101 of the inner frame 100 so as to be detachable and attachable, and forms a fitting groove 201 on the front surface thereof.

The connection bracket 200 is installed to be detachable and attachable to the recessed groove 101 to prevent transmission of external shock generated from the inner frame 100, and further, generated from the inner frame 100 It is prevented from being damaged by impact.

It is preferable that the shape of the fitting groove 201 is formed in the same shape as the one end shape of the insulating material 400.

The connection bracket 200 connects the inner frame 100 and the heat insulating material 400 so that the insulating material 400 is positioned in front of the inner frame 100.

The connection bracket 200 is inserted into the recessed groove 101 on one side thereof to form a locking protrusion 202 whose one end is locked to the locking projection 101a.

The locking protrusion 202 is moved to be inclined downward along the inclined surface 101a-1 of the locking projection 101a and is caught by the locking projection 101a.

The connecting bracket 200 is inserted into the engaging protrusion 101b on the other side opposite to the locking protrusion 202, and is inserted to support the locking protrusion 202 to rotate toward the locking protrusion 101a. A groove 203 is further formed.

The insertion groove 203 is preferably formed in a "c" shape so as to surround and cover the coupling protrusion 101b of the inner frame 100.

The insulating material 400 is fitted into the fitting groove 201 of the connection bracket 200, and partitions the glass G by allowing the glass G to be in close contact with both sides.

The insulating material 400 forms a fitting protrusion 401 that is fitted and fixed to the fitting groove 201 of the connection bracket 200 at one end, and further forms a space portion 400a formed through the upper and lower portions thereof.

The space part 400a allows the inside air and outside air transmitted through the insulation 400 to stay at the same time, so that the outside air flows into the room through the insulation 400 or the inside air is outdoor through the insulation 400 To block the emission of

It is preferable that the insulating material 400 is made of polyamide.

A buffer member 500 is further formed between the inner frame 100 and the connection bracket 200 to prevent the vibration of the inner frame 100 from being transmitted to the connection bracket 200.

It is preferable that the buffer member 500 is formed to have a very large gap between the inner frame 100 and the connection bracket 200.

The buffer member 500 is formed of a rubber plate or a leaf spring that is bent in a predetermined shape to correspond to a shape of a gap between the inner frame 100 and the connection bracket 200.

The connection bracket replacement type window frame according to the first embodiment of the present invention configured as described above is used as follows.

In the following description, the glass (G) is in close contact with the heat insulating material 400 through a bonding operation between the glass (G) in close contact with both sides of the heat insulating material 400 and the heat insulating material 400, and in this process The description will be omitted.

First, the inner frame 100 is fixedly installed along the opened edge of the building so that the recessed groove 101 of the inner frame 100 faces the outdoor direction.

And, provided with a connection bracket 200 corresponding to the shape of the insulating material 400 to be installed, the insertion groove 203 of the connection bracket 200 is inserted into the coupling protrusion 101b and coupled to the coupling protrusion ( One end of the connection bracket 200 is rotated based on 101b).

At this time, when one end of the connection bracket 200 is rotated with respect to the engaging protrusion 101b, the locking protrusion 202 is rotated in the direction of the locking protrusion 101a and the inclined surface 101a of the locking protrusion 101a -1), and in that state, the locking protrusion part 202 is moved in a downwardly inclined direction along the inclined surface 101a-1 of the locking protrusion 101a.

Thereafter, the moment the locking projection 202 is positioned below the locking projection 101a, the locking projection 202 is caught in the locking projection 101a, and at the same time, the insertion groove 203 of the connection bracket 200 ) Is inserted and coupled to surround the coupling protrusion 101b, so that the connection bracket 200 is firmly inserted and fixed in the recessed groove 101 of the inner frame 100.

In particular, in the gap between the inner frame 100 and the connection bracket 200, a buffer member 500 that blocks vibration generated in the inner frame 100 from being transmitted to the connection bracket 200 is fitted and fixed. do.

Subsequently, by inserting the fitting protrusion 401 of the insulating material 400 into the fitting groove 201 of the connecting bracket 200, the insulating material 400 is fixed in a direction orthogonal to the connecting bracket 200.

And, the glass (G) is positioned adjacent to each other based on the insulating material 400, but one surface of the glass (G) is in close contact with both sides of the insulating material 400, so that the glass (G) is the insulating material 400 ) Tightly fixed.

At this time, the thickness of the glass (G) is preferably formed to be proportional to the length of the heat insulating material (400).

The window frame configured as described above seals the indoor space and blocks the inflow of outside air into the room.

Here, the outside air is transmitted through the heat insulator 400 and remains in the space part 400a, and the bet is transmitted through the heat insulator 400 and remains in the space part 400a. It remains at the same time in the space part 400a.

At this time, the bet transmitted to the insulating material 400 through the inner frame 100 is blocked from being discharged to the outside by blocking the outside air remaining in the space part 400a, and further, indoors through the insulating material 400 The outside air flowing in the lateral direction is blocked from the inside air remaining in the space part 400a and is prevented from entering the room.

On the other hand, when shock and vibration occurs in the building or shock and vibration occurs in the inner frame 100 due to an external shock, the shock and vibration of the inner frame 100 is caused by the buffer member 500. It is relieved and is blocked from being transmitted to the connection bracket 200, thereby preventing shape deformation and damage to the connection bracket 200 due to shock and vibration of the inner frame 100.

If the connection bracket 200 is damaged and the connection bracket 200 is to be replaced for maintenance or the connection bracket 200 is to be replaced to correspond to the type or shape of the insulating material 400, the The locking protrusion 202 of the connection bracket 200 is separated from the locking protrusion 101a, but in that state, the insertion groove 203 rotates with respect to the engaging protrusion 101b of the inner frame 100 Thus, the connection bracket 200 is separated from the recessed groove 101 of the inner frame 100.

And, the insertion groove 203 of the connection bracket 200 having a fitting groove 201 shape corresponding to the insulating material 400 to be changed in the same manner as described above is coupled to the coupling protrusion 101b, The connection bracket 200 is detached and attached to the recessed groove 101 by allowing the part 202 to be engaged with the locking projection 101a.

[Second Example]

In the following description, the same reference numerals are used for the same configuration as in the first embodiment, and detailed description thereof will be omitted.

4 to 6, the outer frame 300 is installed in the outdoor direction so as to face the inner frame 100, and the fitting groove 201 on one surface facing each other with the connection bracket 200 Inverse fitting grooves 301 opposite are formed.

The outer frame 300 ends the other end of the insulating material 400'.

The outer frame 300 is preferably formed to have the same width as that of the inner frame 100.

The reverse fitting groove 301 may be formed in the same shape as the shape of the fitting groove 201 or may be formed in a shape corresponding to the other end of the insulating material 400'.

The outer frame 300 closes the front or rear edge of the glass G entering between the inner and outer frames 100 and 300.

The insulating material 400' has both ends fitted and fixed to each of the fitting groove 201 and the reverse fitting groove 301 to connect between the connection bracket 200 and the outer frame 300.

The insulating material 400 ′ may have the same shape or different shapes of the fitting grooves 201 formed at both ends thereof.

It is preferable that the insulating material 400 ′ is made of a polyamide material.

The insulating material 400' is formed to correspond to each other at both ends to form a fitting protrusion 401' that is fitted into the fitting groove 201 and the reverse fitting groove 301, and a space portion 400a' therein is further To form.

It is preferable that the space parts 400a' are formed in a pair adjacent to each other so as to face the outdoor and indoor directions.

The space part 400a' located in the indoor direction among the space parts 400a' allows the bet transferred to the insulating material 400' through the inner frame 100 to stay, and in the outdoor direction. The located space part 400a' allows outside air transmitted to the insulating material 400' through the outer frame 300 to stay.

A buffer member 500 is further formed between the inner frame 100 and the connection bracket 200 to prevent the vibration of the inner frame 100 from being transmitted to the connection bracket 200.

It is preferable that the buffer member 500 is formed to have a very large gap between the inner frame 100 and the connection bracket 200.

The buffer member 500 is formed of a rubber plate or a leaf spring that is bent in a predetermined shape to correspond to a shape of a gap between the inner frame 100 and the connection bracket 200.

The connection bracket replacement type window frame according to the second embodiment of the present invention configured as described above is used as follows.

In the following description, the glass (G) that enters between the inner and outer frames (100, 300) and adheres to both sides of the insulating material (400') and the inner and outer frames (100, 300) through a bonding operation As (G) is fixed between the inner and outer frames 100 and 300, a description of this process will be omitted.

First, the inner frame 100 is fixedly installed along the opened edge of the building so that the recessed groove 101 of the inner frame 100 faces the outdoor direction.

And, provided with a connection bracket 200 corresponding to the shape of the insulating material (400') to be installed, the insertion groove 203 of the connection bracket 200 is inserted into the coupling protrusion 101b and coupled to the coupling protrusion. One end of the connection bracket 200 is rotated based on (101b).

At this time, when one end of the connection bracket 200 is rotated with respect to the engaging protrusion 101b, the locking protrusion 202 is rotated in the direction of the locking protrusion 101a and the inclined surface 101a of the locking protrusion 101a -1), and in that state, the locking protrusion 101b is moved in a downwardly inclined direction along the inclined surface 101a-1 of the locking protrusion 101a.

Thereafter, the moment the locking projection 202 is positioned below the locking projection 101a, the locking projection 202 is caught in the locking projection 101a, and at the same time, the insertion groove 203 of the connection bracket 200 ) Is inserted and coupled to surround the coupling protrusion 101b, so that the connection bracket 200 is firmly inserted and fixed in the recessed groove 101 of the inner frame 100.

In particular, a buffer member 500 that blocks vibration of the inner frame 100 from being transmitted to the connection bracket 200 is fitted in the gap between the inner frame 100 and the connection bracket 200.

Subsequently, by inserting the fitting protrusion 401' of the insulating material 400' into the fitting groove 201 of the connection bracket 200, the insulating material 400' is in a direction orthogonal to the connection bracket 200. Keep it fixed.

In addition, the glass (G) is positioned adjacent to each other based on the insulation material (400'), but one side of the glass (G) is in close contact with both sides of the insulation material (400'), so that the glass (G) is the insulation material It is tightly fixed to (400').

At this time, the thickness of the glass (G) is preferably formed to be proportional to the length of the heat insulating material (400').

Thereafter, by inserting and coupling the reverse fitting groove 301 of the outer frame 300 to the fitting protrusion 401' opposite to the fitting protrusion 401' coupled to the inner frame 100, the outer frame 300 By being installed in a direction facing each other with the inner frame 100, the front and rear edges of the glass G are sealed and finished by the inner and outer frames 100 and 300.

Here, the shape of the reverse fitting groove 301 is formed to correspond to the shape of the fitting protrusion 401' of the insulating material 400', and the fitting protrusions 401' formed at both ends of the insulating material 400' are It is preferably formed in the same shape.

The window frame configured as described above seals the indoor space, and thus, the outside air is blocked from entering the room.

Here, the outside air is transmitted through the insulating material 400 ′ and remains in the space part 400a ′ positioned in the outdoor direction, and the bet is transmitted through the insulation material 400 ′ and located in the indoor direction. By remaining in the space part 400a', the inner and outer air remain in each of the space parts 400a' formed adjacent to each other.

At this time, the bet transmitted to the insulating material 400 ′ through the inner frame 100 is blocked from being discharged to the outdoors by blocking the outside air remaining in the outdoor space part 400a ′, and further, the insulating material 400 ′ The outside air flowing in the indoor direction through) is blocked from the inside air remaining in the indoor space part 400a' and is prevented from flowing into the room.

On the other hand, when shock and vibration occurs in the building or shock and vibration occurs in the inner frame 100 due to an external shock, the shock and vibration of the inner frame 100 is caused by the buffer member 500. It is relieved and is blocked from being transmitted to the connection bracket 200, thereby preventing shape deformation and damage to the connection bracket 200 due to shock and vibration of the inner frame 100.

If the connection bracket 200 is damaged and you want to replace the connection bracket 200 for maintenance, or to replace the connection bracket 200 to correspond to the type or shape of the insulation material 400', The locking protrusion 202 of the connection bracket 200 is separated from the locking protrusion 101a, but in that state, the insertion groove 203 rotates based on the engaging protrusion 101b of the inner frame 100 Thus, the connection bracket 200 is separated from the recessed groove 101 of the inner frame 100.

In addition, the insertion groove 203 of the connection bracket 200 having a fitting groove 201 shape corresponding to the insulating material 400 ′ to be changed in the same manner as described above is coupled to the coupling protrusion 101b, It is to remove and attach the connection bracket 200 to the recessed groove 101 so that the locking protrusion 202 is engaged with the locking protrusion 101a.

The structure of inserting and coupling the connection bracket 200 to the recessed groove 101 of the inner frame 100 as described above so as to be detachable and attachable, the connection bracket 200 that is coupled to the inner frame 100 is an insulating material 400 It can be easily replaced to correspond to the shape, and the insulation 400 having various shapes can be connected to the inner frame 100 due to the replacement of the connection bracket 200, and in particular, the insulation 400 by replacement of the connection bracket 200 The working time can be shortened because it can be easily replaced, and maintenance cost is reduced by removing and replacing the connection bracket 200 from the inner frame 100 when the connection bracket 200 into which the insulation material 400 is inserted is damaged.

The connection bracket-replaceable window frame according to the present invention described above is not limited to the above-described embodiment, and those of ordinary skill in the field to which the present invention belongs without departing from the gist of the present invention claimed in the following claims. It has the technical spirit to the extent that anyone can change it in various ways.

100: inner frame 101: recessed groove
101a: locking jaw 101a-1: slope
101b: coupling protrusion 200: connection bracket
201: fitting groove 202: locking projection
203: insertion groove 300: outer frame
301: reverse fitting groove 400: insulation
400': insulation 400a: space
400a': space part 401: fitting projection
401': fitting protrusion 500: buffer member
G: glass

Claims (9)

An inner frame 100 in which the upper and lower portions are opened in a hollow tubular shape and installed along the opened edge of the building and formed with a recessed groove 101 formed in the front;
A connection bracket 200 that is detachably inserted and coupled to the recessed groove 101 of the inner frame 100 and formed with a fitting groove 201 on the front surface thereof;
Insulation material 400 that is fitted into the fitting groove 201 of the connection bracket 200, and partitions the glass (G) by allowing the glass (G) to be in close contact with both sides;
Connection bracket replacement type window frame, characterized in that consisting of. An inner frame 100 in which the upper and lower portions are opened in a hollow tubular shape and installed along the opened edge of the building and formed with a recessed groove 101 formed in the front;
A connection bracket 200 that is detachably inserted and coupled to the recessed groove 101 of the inner frame 100 and formed with a fitting groove 201 on the front surface thereof;
The outer frame 300 which is installed in an outdoor direction so as to face the inner frame 100 and has a reverse fitting groove 301 opposite to the fitting groove 201 on one surface facing each other with the connection bracket 200 );
An insulating material 400' having both ends fitted and fixed to each of the fitting groove 201 and the reverse fitting groove 301 to connect between the connection bracket 200 and the outer frame 300;
Connection bracket replacement type window frame, characterized in that consisting of. The method according to claim 1 or 2,
A locking protrusion 101a is formed on the inner wall of the recessed groove 101 of the inner frame 100,
The connection bracket 200 is inserted into the recessed groove 101 on one side of the connection bracket replacement type window frame, characterized in that the one end forms a locking protrusion 202 that is fixed to the locking projection (101a) . The method of claim 3,
The locking jaw 101a,
The inclined surface 101a-1 is formed to be inclined downward from the top to the bottom, and guides the locking protrusion 202 to move in a downwardly inclined direction so that the locking protrusion 202 is caught on the locking protrusion 101a. Connection bracket replacement type window frame, characterized in that formed further. The method of claim 3,
The recessed groove 101 of the inner frame 100 further forms a coupling protrusion 101b protruding in the direction of the locking projection 101a on the inner wall opposite to the locking projection 101a,
The connecting bracket 200 is inserted into the engaging protrusion 101b on the other side opposite to the locking protrusion 202, and is inserted to support the locking protrusion 202 to rotate toward the locking protrusion 101a. Connection bracket replacement window frame, characterized in that the groove 203 is further formed. The method according to claim 1 or 2,
Connection characterized in that a buffer member 500 is further formed between the inner frame 100 and the connection bracket 200 to prevent the vibration of the inner frame 100 from being transmitted to the connection bracket 200 Bracket interchangeable window frame. The method of claim 6,
The buffer member 500,
A connection bracket replacement type window frame, characterized in that it is a plate made of rubber or a leaf spring bent into a predetermined shape to correspond to a shape of a gap between the inner frame 100 and the connection bracket 200. The method of claim 1,
The insulating material 400,
Replacement of the connection bracket, characterized in that at one end, a fitting protrusion 401 that is fitted and fixed to the fitting groove 201 of the connection bracket 200 is formed, and a space 400a formed through the upper and lower sides is further formed inside. Type window frame. The method of claim 2,
The insulating material 400 ′,
A connection, characterized in that the fitting protrusion 401' is formed to correspond to each other at both ends and is fitted into the fitting groove 201 and the reverse fitting groove 301, and a space portion 400a' is further formed inside Bracket interchangeable window frame.

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