KR102664634B1 - Window system with improved airtightness - Google Patents

Abstract

The present invention relates to a window system with improved airtightness, which is formed of a first frame 111, a second frame 113, a third frame 115, and a fourth frame 117 to connect the window and the wall, The first frame 111 and the second frame 113 are horizontal frames, and the window frame 110 is formed with irregularities and moving rails on the rails to fix the upper and lower sides of the first window 120, respectively. ; A first window 120 installed and fixed so that the unevenness of the first frame 111 and the second frame 113 is in close contact with the frame of the first window 120; and a second window 130 that slides along the moving rail, wherein a space H is formed between the second window 130 and the first window 120, which is fixed before sliding, while sliding. It is characterized in that it is in close contact, and the first window 120 includes a first close contact frame 123 that is coupled to one side of the first window body 121 and closes the vertical support wall, and the first close contact frame A first multi-stage portion 1236 having an inclined surface is formed at (123), so that the second window 130 slides and comes into close contact with the second close frame 133, and the second window 130 is the second window 130. The second window 130 may be formed to be movable perpendicular to the moving direction in which the moving guide unit 140 and the lower roller 150 located on the upper side of the window 130 slide along the rail.

Description

Window system with improved airtightness}

The present invention relates to a window system, and more specifically, to improve the structure to ensure close contact between a window frame and a sliding window, and to prevent air from passing between the sliding window and a fixed window, thereby blocking outdoor air. The purpose is to provide a window system with improved airtightness.

Windows protect the interior of a building from rain, wind, or snow, block heat transfer between the inside and outside of the building, and are used for lighting or ventilation. These windows are generally installed in openings formed in the inner or outer walls of the building. It consists of a window frame and at least one pair of windows (hereinafter referred to as 'window frames') that are installed inside the window frame and open and close by sliding.

In general, window frames are made of wood or aluminum, and to compensate for the shortcomings of window frames, these frames are mainly made of plastic (synthetic resin). In this way, window frames and window frames made of plastic are cheaper than those made of wood. It is inexpensive, lightweight, and easier to manufacture than aluminum windows.

Even if these windows are made of the same material as the frame or a different material, they must not interfere with each other when sliding a pair of windows, resulting in a slight gap between the vertical frames. In this way, problems arise where outside air containing fine dust flows into the room or indoor air leaks through the gap between the frame and the sliding window.

KR 20-0449143 Y KR 10-2012-0082552 A

The purpose of the present invention is to solve the above problems, and to provide a window system with improved airtightness that improves the structure to ensure close contact between the window frame and the sliding window and to prevent air from passing between the sliding window and the fixed window. It is provided.

Another object of the present invention is to provide a window system that can improve appearance and airtightness by covering the upper part of the frame rail with a rail cover to prevent dust or foreign substances from accumulating in the space between the window frame rail and the outdoor rail.

In order to achieve the above object, the window system with improved airtightness according to an embodiment of the present invention is formed of a first frame 111, a second frame 113, a third frame 115, and a fourth frame 117. The window and the wall are connected, and the first frame 111 and the second frame 113 are horizontal frames, and each has irregularities and moving rails on the rail to fix the upper and lower sides of the first window 120. A window frame 110 is formed; A first window 120 installed and fixed so that the unevenness of the first frame 111 and the second frame 113 is in close contact with the frame of the first window 120; and a second window 130 that slides along the moving rail, wherein a space H is formed between the second window 130 and the first window 120, which is fixed before sliding, while sliding. It is characterized in that it is in close contact, and the first window 120 includes a first close contact frame 123 that is coupled to one side of the first window body 121 and closes the vertical support wall, and the first close contact frame A first multi-stage portion 1236 having an inclined surface is formed at (123), so that the second window 130 slides and comes into close contact with the second close frame 133, and the second window 130 is the second window 130. The second window 130 may be formed to be movable perpendicular to the moving direction in which the moving guide unit 140 and the lower roller unit 150 located on the upper side of the window 130 slide along the rail.

The first close contact frame 123 is coupled to one side of the first window body 121 to finish the vertical support wall, and includes a first close contact body 1231 that becomes the main body of the first close contact frame 123; a first close contact protrusion 1232 formed to secure the first close contact body 1231 to the first window body 121; a first close connection portion 1233 that is bent and connected to the first close connection body 1231 and is formed to surround a portion of the frame adjacent to the second window 130, which is the rear side of the first window body 121; a first sealing insertion portion 1234 into which a sealing member (mohair) is inserted to improve airtightness of an area where the second window 130 slides and overlaps; A first close extension portion 1235 that extends from the first close connection portion 1233 and comes into close contact with the frame of the second window 130 that overlaps as the second window 130 slides, and the first close contact extension portion. It includes a first multi-stage portion 1236 having an inclined surface on the rear surface of 1235, wherein the first multi-stage portion 1236 has at least 2 to 5 step surfaces formed on the inclined surface, a bulging surface and a concave surface. It may be formed in such a way that the entering surfaces intersect.

The second close contact frame 133 is coupled to one side of the second window body 131 to finish the vertical support wall, and includes a second close contact body 1331 that becomes the main body of the second close contact frame 133; a second close contact protrusion 1332 formed to fix the second close contact body 1331 to the second window body 131; a second close connection portion 1333 that is bent and connected to the second close body 1331 and is formed to surround a portion of the frame adjacent to the first window 120, which is the rear side of the second window body 131; a second sealing insertion portion 1334 into which a sealing member (mohair) is inserted to improve airtightness with the area overlapping the fixed first window 120 while the second window 130 is slidably moved; A second close contact extension 1335 that extends from the second close connection portion 1333 and slides and comes into close contact with the surface overlapping the fixed first window 120, and the second close contact extension 1335 is on the back. It includes a second multi-stage portion 1336 having an inclined surface, wherein the second multi-stage portion 1336 has at least 2 to 5 step surfaces formed on the inclined surface, and the step surfaces have a bulging surface and a concave surface. It is characterized in that it is formed to intersect, and the step surface of the second multi-stage portion 1336 is formed to be in close contact with the first multi-stage portion 1236 of the fixed first window 120 while sliding. can be formed.

The moving guide part 140 is formed on the upper part of the second window 130 to be movable along the rail of the first frame 111, and has a Π shape that the rail of the first frame 111 accommodates in the internal space. A space is formed, and the second window 130 may be formed to slide along the rail.

The lower roller part 150 is coupled to the lower part of the second window 130 and includes a sliding part 151 and a gap adjustment part 153 to slide along the rail 1132 of the second frame 113, The sliding part 151 is located on the rail 1132 of the second frame 113 and has at least two rollers 1513 formed to move along the rail 1132, and the upper part of the roller fixing part 1511 It is characterized in that the clearance correction unit 1514 is fixed to enable the position of the second window 130 to be changed perpendicular to the sliding direction, and the gap adjustment unit 153 is formed in a T shape, and has a T inside. The sliding part 151 is inserted and fastened into the space of the shape, and when the gap (H) between the second window 130 and the first window 120 narrows while sliding, it moves vertically on the rail by the narrowing gap. It may be formed to be moved in one direction.

It includes installing a rail cover 160 in an area excluding the fixedly installed first window 120,

The rail cover 160 has a first surface 1601 having a curved surface, and a second surface 1602 that is bent and extended from the first surface 1601 and adjacent to the outer surface 1134 of the window frame 1131. , a third surface 1603 corresponding to the fixing rails 1135, 1136, 1137, and 1138 that are bent and extended from the second surface 1602 and on which the first window 120 is fixed. It may be formed to include a fourth surface 1604 that is bent and extended and adjacent to the second window 130.

The window system with improved airtightness of the present invention has the effect of completely blocking outside air and indoor air by improving the window frame and naturally bringing the space between the windows and the space between the window and the frame into close contact with the movement of the sliding window.

In addition, the window system with improved airtightness of the present invention has the advantage of improving user convenience by improving the structure so that the space between the fixed window and the sliding window is brought into close contact while moving along the frame rail through the roller parts of the window.

In addition, the present invention can provide a clean appearance by tightly fixing the rail cover from the window frame rail to the outdoor rail where the window is not placed, preventing foreign substances such as fine dust and insects from accumulating.

Figure 1 is a perspective view of a window system with improved airtightness according to an embodiment of the present invention.
Figure 2 is a cross-sectional view for explaining the clearance (H) seen on the first frame before the first window and the second window are brought into close contact in one embodiment of the present invention.
FIG. 3 is a cross-sectional view taken along line A-A' in FIG. 1 where the first window and the second window are in close contact.
Figure 4a is a cross-sectional view of the moving guide part of the second window in Figure 1.
Figure 4b is an exploded view of the moving guide part in Figure 4a.
FIG. 5A is a cross-sectional view of the lower roller portion of the second window in FIG. 1.
Figure 5b is an exploded view of the lower roller part in Figure 5a.
Figure 5c is a combined side view of the lower roller part of Figure 5b.
Figure 6 is a cross-sectional view showing an example of a rail cover being coupled to the cross-sectional view of the window frame rail B-B' in Figure 1.

The purpose and effects of the present invention, and technical configurations for achieving the same, will become clear by referring to the embodiments described in detail together with the accompanying drawings. However, this is not intended to limit the present disclosure to equivalent embodiments, and the present invention should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

In describing the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

Additionally, the embodiments of the present invention described with reference to the perspective view specifically represent ideal embodiments of the present invention. As a result, various variations in the illustrations, for example variations in manufacturing methods and/or specifications, are expected. Accordingly, the embodiment is not limited to the specific shape of the illustrated area and also includes changes in shape due to manufacturing, for example. For example, areas shown or described as flat may generally have rough/rough and non-linear characteristics. Additionally, portions shown as having sharp angles may be rounded. Accordingly, the areas shown in the drawings are only approximate in nature, and their shapes are not intended to illustrate the exact shape of the areas, nor are they intended to narrow the scope of the present invention.

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

Figure 1 is a perspective view of a window system with improved airtightness according to an embodiment of the present invention. Figure 2 is a cross-sectional view for explaining the clearance (H) seen on the first frame 111 before the first window 120 and the second window 130 are brought into close contact in one embodiment of the present invention, and Figure 3 is In Figure 1, it is a cross-sectional view taken along line A-A' where the first window 120 and the second window 130 are in close contact.

The window system 100 with improved airtightness of the present invention includes a window frame 110, a first window 120, a second window 130, a moving guide part 140, a lower roller part 150, and a rail cover (160). ) includes. The window system 100 improves airtightness by tightly contacting the space created between the first window 120 and the second window 130 with the second window 130, which moves in the sliding direction. In addition, the window frame 110 has an improved structure so that the fixed first window 120 and the sliding second window 130 are in close contact, so that the window system 100 blocks outdoor air and indoor air.

The window frame 110 includes a first frame 111, a second frame 113, a third frame 115, and a fourth frame 117. The window frame 110 is a component that connects the window and the wall and improves the airtightness of the window system 100, and is formed so that the window can slide left and right.

The first frame 111 and the second frame 113 are horizontal frames, and the movement guide part of the second window 130 and the irregularities on the rail so that the upper and lower sides of the first window 120 are fixed ( Moving rails are formed so that the 140) and lower roller parts 150 slide along the rails. The first frame 111 and the second frame 113 are installed so that their upper and lower parts are in close contact with the first window 120, thereby improving airtightness.

The third frame 115 and fourth frame 117 are vertical frames that connect both ends of the first frame 111 and the second frame 113. The third frame 115 includes a sealing member (mohair) to be in close contact with one vertical side of the first window 120. The fourth frame 117 is in close contact with one vertical side of the second window 130. The inside of the fourth frame 117 includes a finishing protrusion 119 for controlling the moving direction of the sliding second window 130. The finishing protrusion 119 allows the second window 130 to be closed by being pushed toward the first window 120 while moving along the moving rail. The finishing protrusion 119 may be formed in a vertical longitudinal direction on the inside of the fourth frame 117, or may be formed to be disposed in each part, such as the upper/middle part/lower part.

The first window 120 is a fixed window, and is installed so that the unevenness of the first frame 111 and the second frame 113 is in close contact with the frame of the first window 120. The first window 120 includes a first window body 121 and a first close frame 123.

The first window body 121 is a support wall that supports a glass window at the center, and can be fixed between the glass window and the support wall with a bonding member such as silicon to form a window. The first window body 121 refers to a vertical support wall in the first window 120.

The first close frame 123 is coupled to one side of the first window body 121 and closes the vertical support wall. The first close frame 123 includes a first close body 1231, a first close protrusion 1232, a first close connection portion 1233, a first closed insertion portion 1234, and a first close contact extension portion 1235. and a first multi-stage portion 1236.

The first close contact body 1231 closes the first window body 121 and becomes the main body of the first close contact frame 123.

The first close contact protrusion 1232 is a fastening protrusion formed to secure the first close contact body 1231 to the first window body 121. The first contact protrusion 1232 is formed on the back of the first contact body 1231 and is inserted into a fastening groove formed in the first window body 121.

The first close connection portion 1233 is bent and connected to the first close body 1231 and is formed to surround the back side of the first window body 121, that is, a portion of the frame adjacent to the second window 130. The first close connection portion 1233 comes into close contact with the surface where the second window 130 overlaps as the second window 130 slides, thereby improving airtightness between the windows.

A sealing member (mohair) is inserted into the first sealing insertion portion 1234 to improve the airtightness of the area where the second window 130 overlaps by sliding.

The first close extension portion 1235 extends from the first close connection portion 1233 and comes into close contact with the overlapping surface of the second window 130 as it slides. In addition, the first close extension portion 1235 includes a first multi-stage portion 1236 having an inclined surface on its rear surface. The first multi-stage portion 1236 has at least 2 to 5 stepped surfaces formed on an inclined surface. The step surface may be formed so that a bulging surface and a concave surface intersect. The stepped surface of the first multi-stage portion 1236 is configured to be sealed by contacting the second multi-stage portion 1336, which will be described below, while the second window 130 slides.

The second window 130 is a sliding window that connects or disconnects the indoor and outdoor spaces. Before sliding (opening the window), the second window 130 forms a gap (H) between the fixed first window 120, and while sliding (closing the window), this gap (H) is brought into close contact, thereby maintaining airtightness. improves The second window 130 includes a second window body 131 and a second close frame 133.

The second window body 131 is a support wall that supports a glass window at the center, and can be fixed between the glass window and the support wall with a bonding member such as silicon to form a window. The second window body 131 refers to a vertical support wall in the second window 130.

The second close frame 133 is coupled to one side of the second window body 131 and closes the vertical support wall. The second close contact frame 133 includes a second close body 1331, a second close protrusion 1332, a second close connection portion 1333, a second sealed insertion portion 1334, and a second close contact extension portion 1335. and a second multi-stage portion 1336.

The second close contact body 1331 closes the second window body 131 and becomes the main body of the second close contact frame 133.

The second close contact protrusion 1332 is a fastening protrusion formed to fix the second close contact body 1331 to the second window body 131. The second contact protrusion 1332 is formed on the rear surface of the second contact body 1331 and is inserted into the fastening groove formed in the second window body 131.

The second close connection portion 1333 is bent and connected to the second close body 1331 and is formed to surround the back side of the second window body 131, that is, a portion of the frame adjacent to the first window 120. The second close connection portion 1233 slides and comes into close contact with the surface overlapping the fixed first window 130, thereby improving airtightness between the windows.

The second sealing insertion part 1334 slides and a sealing member (mohair) is inserted to improve airtightness with the area overlapping with the fixed first window 120.

The second close extension portion 1335 extends from the second close connection portion 1333 and comes into close contact with the surface overlapping the fixed first window 120 while sliding. In addition, the second close contact extension 1335 includes a second multi-stage portion 1336 having an inclined surface on its rear surface. The second multi-stage portion 1336 has at least 2 to 5 step surfaces formed on an inclined surface. The step surface may be formed so that a bulging surface and a concave surface intersect. The step surface of the second multi-stage portion 1336 slides and comes into contact with the first multi-stage portion 1236 of the fixed first window 120, thereby improving airtightness.

FIG. 4A is a cross-sectional view of the movement guide unit 140 of the second window 130 in FIG. 1, and FIG. 4B is an exploded view of the movement guide unit 140 in FIG. 4A.

The moving guide part 140 is formed on the upper part of the second window 130 to be movable along the rail of the first frame 111. The movement guide unit 140 includes a first movement guide unit 141 and a second movement guide unit 145.

The first moving guide portion 141 includes a Π-shaped first moving guide body 1411, a sealing member insertion groove 1412, a first protrusion 1413, a second protrusion 1414, and a first extension portion 1415. ), a second extension 1416, and a moving hole 1419. The first moving guide unit 141 accommodates the rail of the first frame 111 and moves along the rail. The first moving guide part 141 is formed in a Π shape and is inserted into the second window 130 moving along the rail to bring it into close contact with the first frame 111.

The first moving guide body 1411 has a Π shape, forming a space in its internal space to accommodate the rail of the first frame 111, and allowing the second window 130 to slide along the rail. The first moving guide body 1411 further includes a sealing member insertion groove 1412 into which a sealing member (not shown) can be inserted and fixed to block the space between the rails.

The first protrusion 1413 and the second protrusion 1414 are connected to the inside of the second window 130 by a spring 1417. The second protrusion 1414 protrudes more than the first protrusion 1413 so that the second window 130 slides and comes into close contact with the first window 120 based on the rail, or moves in the opposite direction to move the second window 130 toward the first window 120. When moving away from the side, it can stably respond to the elastic compression/elastic deformation of the spring 1417. That is, when the spring 1417 coupled to the first protrusion 1413 shows elastic deformation (stretching), it is compressed by the spring 1417 coupled to the second protrusion 1414 to open and close the second window 130. As it naturally slides, it becomes adjacent to or moves away from the first window 120.

The first extension 1415 and the second extension 1416 close the window frame of the second window 130. The second extension part 1416 may be formed to be longer than the first extension part 1415. The first extension 1415 and the second extension 1416 are formed adjacent to the inner side of the rail of the first frame 111 after inserting the second window 130 into the rail of the first frame 111. You can. The first extension 1415 and the second extension 1416 allow the inner surfaces of the rails of the first frame 111 to be adjacent to each other, thereby increasing airtightness by blocking air from entering the room from the outside. Additionally, a sealing member (mohair) may be added between the first extension 1415 and the second extension 1416 on the inner side of the rail of the first frame 111.

The moving hole 1419 is connected through the guide bar 1456 of the second moving guide part 145. When the second window 130 opens and closes toward the first window 120, the first guy portion 141 moves along the rail of the first frame 111, thereby limiting the vertical movement of the rail. . The moving hole 1419 enables position correction in the vertical direction of the rail.

The second movable guide part 145 includes a second movable guide body 1451, a third protrusion 1452, a fixed extension part 1453, a fixing hole 1455, and a guide bar 1456. The second moving guide unit 145 is connected to the first moving guide unit 141 and a guide bar 1456.

The second moving guide body 1451 is disposed between the first moving guide part 141 and the second window 130, and has a through hole at the center of the fixed extension part 1453 in the frame of the second window 130. Insert a bolt into the fixing hole (1455) and fix it.

The third protrusion 1452 protrudes and extends in the inner direction of the second moving guide body 1451 to fix the guide bar 1456 by being disposed perpendicular to the longitudinal direction of the rail of the first frame 111.

Therefore, the second moving guide body 1451 moves in the longitudinal direction of the rail of the first frame 111 according to the movement of the second window 130 and overlaps with the first window 120 to move in the vertical direction of the rail. It moves.

Figure 5a is a cross-sectional view of the lower roller part 150 of the second window 130 in Figure 1, Figure 5b is an exploded view of the lower roller part 150 in Figure 5a, and Figure 5c is a lower roller part 150 in Figure 5b. ) is a combined side view.

The lower roller unit 150 includes a sliding unit 151 and a gap adjustment unit 153. The lower roller unit 150 is coupled to the lower part of the second window 130 and slides along the rail 1132 of the second frame 113. At this time, the lower roller part 150 moves the step surface of the second multi-stage part 1336 formed on the second window 130 during the sliding process, thereby moving the fixed first multi-stage part 1236 of the first window 120. ) and move perpendicular to the sliding direction so that the gap (H) can be narrowed.

The sliding part 151 is located on the rail 1132 of the second frame 113 and has at least two rollers 1513 formed to move along the rail 1132. The rollers 1513 are connected to each other by a roller fixing part 1511.

A gap correction unit 1514 is fixed to the upper part of the roller fixing unit 1511 to enable the position of the second window 130 to be changed perpendicular to the sliding direction. The clearance correction unit 1514 is characterized in that it is formed wider than the cross section of the roller fixing unit 1511 because it includes a distance by which the second window 130 can be moved perpendicular to the sliding direction. The clearance correction unit 1514 includes a first clearance extension 1515 and a second clearance extension 1516 extending vertically at both ends. A fixing hole 1517 for inserting the moving bar 1518 therein is formed in the first clearance extension 1515 and the second clearance extension 1516, respectively. The moving bar 1518 further includes an auxiliary roller 1519. The auxiliary roller 1519 rotates in a direction perpendicular to the rotation of the two rollers 1513 formed to move along the rail 1132. The auxiliary roller 1519 guides the gap adjustment unit 153 to move according to the direction of rotation.

The gap adjustment part 153 is formed in a T shape, and a sliding part 151 is inserted and fastened into the T-shaped space inside. After the clearance adjustment unit 153 is inserted into the sliding unit 151, its inner surface comes into contact with the auxiliary roller 1519 so that it can be moved according to the rotation of the roller. In addition, the gap adjustment part 153 is fixed to the lower frame of the second window 130 by inserting a bolt into the second fixing hole 1535, which is a through hole at the center of the second fixing extension part 1532. The clearance adjusting unit 153 is in contact with the first multi-stage portion 1236 of the fixed first window 120 while the step surface of the second multi-stage portion 1336 formed on the second window 130 slides to provide clearance. When (H) narrows, it moves vertically on the rail by the narrowing distance.

Figure 6 is a cross-sectional view showing an example of a rail cover being coupled to the cross-sectional view of the window frame rail B-B' in Figure 1.

The rail cover 160 may be installed in an area excluding the first window 120 that is fixedly installed on the frame.

The rail cover 160 has a first surface 1601 having a curved surface, and a second surface 1602 that is bent and extended from the first surface 1601 and adjacent to the outer surface 1134 of the window frame 1131. , a third surface 1603 corresponding to the fixing rails 1135, 1136, 1137, and 1138 that are bent and extended from the second surface 1602 and on which the first window 120 is fixed. It includes a fourth surface 1604 that is bent and extended and adjacent to the second window 130.

The third surface 1603 includes fixing protrusions 1607 and 1608 at corresponding positions so as to be detached from the groove 1138 of the fixing rail. In addition, the fourth surface 1604 includes a sealing member fixing part 1605 into which the sealing member M can be inserted to increase sealing properties on the surface adjacent to the second window 130.

The rail cover 160 closes the gap remaining between the frame and the window to block external air and prevents dust from accumulating between the rails, which may cause cleaning problems.

As explained above, the present invention is not limited to the specific preferred embodiments described above, and anyone skilled in the art to which the invention pertains can use it without departing from the gist of the present invention as claimed in the patent claims. Of course, various modifications are possible, and such modifications are within the scope of the patent claims.

100: Window system with improved airtightness
110: window frame 120: first window
130: Second window 140: Movement guide unit
150: Lower roller part 160: Rail cover

Claims (6)

It is formed of a first frame 111, a second frame 113, a third frame 115, and a fourth frame 117 to connect the window and the wall, and the first frame 111 and the second frame 113 ) is a horizontal frame in which irregularities and movable rails are formed on the rail to fix the upper and lower sides of the first window 120, respectively, and the third frame 115 is a vertical frame of the first window 120. It includes a sealing member (mohair) to be in close contact with the side, and the fourth frame 117 is in close contact with one vertical side of the second window 130 and controls the moving direction of the second window 130 that slides on the inside. A window frame (110) including a finishing protrusion (119) for;
A first window 120 installed and fixed so that the unevenness of the first frame 111 and the second frame 113 is in close contact with the frame of the first window 120; and
A window that slides along the moving rail, is a support wall that supports the glass window at the center to connect or disconnect indoor and outdoor spaces, and is a second window that is fixed between the glass window and the support wall with a bonding member such as silicon to form a window. It includes a second window 130 including a body 131 and a second close frame 133 that is coupled to one side of the second window body 131 and closes the vertical support wall,
The second window 130 has a gap (H) formed between it and the fixed first window 120 before sliding, and the gap (H) is in close contact with the second window 130 while sliding,
The first window 120 is a support wall that supports a glass window at the center, and is coupled to one side of the first window body 121, which forms a window by fixing it with a coupling member such as silicon between the glass window and the support wall, to form a vertical support wall. It includes a first close contact frame 123 that closes, and a first multi-stage portion 1236 having an inclined surface is formed on the first close frame 123, so that the second window 130 slides and moves to form the second close contact frame. (133) and are in close contact with each other,
The second window 130 is perpendicular to the moving direction in which the moving guide part 140 and the lower roller part 150 located on the upper side of the second window 130 slide along the rail. Characterized by being movable,
The first close contact frame 123 is coupled to one side of the first window body 121 to finish the vertical support wall, and includes a first close contact body 1231 that becomes the main body of the first close contact frame 123;
A first close contact protrusion 1232 formed to fix the first close contact body 1231 to the first window body 121;
a first close connection portion 1233 that is bent and connected to the first close connection body 1231 and is formed to surround a portion of the frame adjacent to the second window 130, which is the rear side of the first window body 121;
a first sealing insertion portion 1234 into which a sealing member (mohair) is inserted to improve airtightness in an area where the second window 130 slides and overlaps;
A first close extension portion 1235 that extends from the first close connection portion 1233 and is in close contact with the frame of the second window 130 that overlaps as the second window 130 slides, and
It includes a first multi-stage portion 1236 having an inclined surface on the rear surface of the first close contact extension portion 1235,
The first multi-stage portion 1236 has at least 2 to 5 step surfaces formed on an inclined surface, and is formed so that a bulging surface and a concave surface intersect,
The second close contact frame 133 is coupled to one side of the second window body 131 to finish the vertical support wall, and includes a second close contact body 1331 that becomes the main body of the second close contact frame 133;
a second close contact protrusion 1332 formed to secure the second close contact body 1331 to the second window body 131;
a second close connection portion 1333 that is bent and connected to the second close body 1331 and is formed to surround a portion of the frame adjacent to the first window 120, which is the rear side of the second window body 131;
A second sealing insertion portion 1334 into which a sealing member (mohair) is inserted to improve airtightness with the area overlapping the fixed first window 120 while the second window 130 is slidably moved;
A second close contact extension 1335 that extends from the second close connection portion 1333 and slides and comes into close contact with the surface overlapping the fixed first window 120, and
The second close contact extension 1335 includes a second multi-stage portion 1336 having an inclined surface on its rear surface,
The second multi-stage portion 1336 is characterized in that at least 2 to 5 step surfaces are formed on the inclined surface, and the step surfaces are formed so that a bulging surface and a concave surface intersect,
A window system with improved airtightness, characterized in that the step surface of the second multi-stage portion 1336 is formed to be in close contact with the first multi-stage portion 1236 of the fixed first window 120 while sliding.
delete delete According to claim 1,
The moving guide part 140 is formed on the upper part of the second window 130 to be movable along the rail of the first frame 111, and has a Π shape that the rail of the first frame 111 accommodates in the internal space. A window system with improved airtightness, characterized in that a space is formed and the second window 130 slides along a rail.
delete According to claim 1,
It includes installing a rail cover 160 in an area excluding the fixedly installed first window 120,
The rail cover 160 has a first surface 1601 having a curved surface, and a second surface 1602 that is bent and extended from the first surface 1601 and adjacent to the outer surface 1134 of the window frame 1131. , a third surface 1603 corresponding to the fixing rails 1135, 1136, 1137, and 1138 that are bent and extended from the second surface 1602 and on which the first window 120 is fixed. A window system with improved airtightness, characterized in that it includes a fourth surface (1604) that is bent and extended and adjacent to the second window (130).

Images