Patent Description:
In general, when a sliding window (moving window) and a fixed window of four-side supporting frame window type that support the four sides of the glass window with thick supporting frames as a movable window (sliding window) and a fixed window constituting a sliding window system are used (<FIG>), as shown in a-a' cross-sectional view (longitudinal cross-sectional view) of <FIG>, the sliding window system has a structure in which a roller slides along a roller guide rail on a door frame (chassis frame) <NUM> by providing the roller installed on a lower part of a window chassis 2a in which a glass is fitted. However, in case of such a four-side supporting frame window type, in order to sufficiently support the weak rigidity of the glass window, as shown in the a-a' longitudinal sectional view of <FIG> and the b-b' cross-sectional view of <FIG> & <FIG>, an aluminum (AL) frame, a material with very high thermal conductivity, is installed on all four sides around the window. Therefore, there was no great difficulty in achieving good thermal insulating function.

Recently, however, in the case of pair glasses produced for construction and supplied to the market, its rigidity has improved to such an extent that there is no need to place a separate aluminum window chassis member on the lower or upper part, and the demand for a window system with a slimmer window chassis frame is increasing under the influence of modem architectural design that emphasizes the wide openness of windows. To reflect this trend and provide good heating and cooling energy efficiency, the use of a sliding window of a two-side support frame window type (see <FIG>) in which aluminum supporting frames are installed only on both sides of a glass window is increasing so as to minimize the use of the aluminum chassis, which is a material with high thermal conductivity.

As shown as an example of the Swiss Sky-frame company product in <FIG>, as an example of a window system having a sliding window of such a two-side support frame window type, the window chassis 2b made of an aluminum (AL) material into which the glass <NUM> is sandwiched, exists only on both sides of the glass <NUM>, but there is no aluminum chassis other than a synthetic resin glass support insulation bracket 2gb (a member that wraps around the glass end for the purpose of preventing breakage and cushioning and insulation, and is made of organic materials such as polyamide or P. ) at the upper part and the lower part of the glass <NUM>. In this case, so that the synthetic resin glass support insulation bracket 2gb attached to the side of the glass <NUM> can support it more strongly from the side, a side cap 2b1 made of aluminum metal having relatively excellent fixing support force despite a thin thickness is additionally provided as a window chassis. Among the aluminum metal side caps 2b1, the aluminum metal side cap 2b1 on the side section of the door frame <NUM> (the left parts of <FIG> and <FIG>), which is a part in contact with the outside air, is formed with inner side and outer side separated to improve thermal insulation performance, and a heat insulating member 2b2 is inserted between the inner side and outer side of the aluminum metal side cap 2b1.

However, when the sliding window <NUM> is closed, even if the window chassis 2b made of aluminum (AL), the side of which is inserted into an insertion pocket 1v on the door frame <NUM> side, is separated by the heat insulating member 2b2, a lot of heat is lost from the in-side portion of the aluminum metal side cap 2b1 to the out-side portion of the door frame <NUM> and the aluminum metal side cap 2b1 in contact with low-temperature outdoor air due to convection of air existing in the insertion pocket 1v. As a result, the temperature of the in-side portion of the aluminum metal side cap 2b1 is lowered, and consequently, energy efficiency is lowered. Furthermore, despite the high indoor temperature, the side cap 2b1 of the window chassis 2b made of an aluminum (AL) material has a low surface temperature, thereby exhibiting a problem in that dew condensation occurs.

On the other hand, as a means for avoiding such a problem, when the sliding window <NUM> is closed, the use of an aluminum material is avoided in the side part inserted into the insertion pocket 1v on the door frame <NUM> side, and the aluminum metal side cap 2b1 part is removed. A new side cap 2b1 may have the same configuration as in the example of Schueco's product in Germany in which the portion of the synthetic resin (PL; Plastic) or carbon fiber (CF; Carbon Fiber) insulating material is formed as the side cap 2b1. Nevertheless, it also cannot prevent heat loss due to convection of air present in the insertion pocket 1v, as well as the synthetic resin or carbon fiber side cap 2b1 alone, in an environment where strong wind acts on the glass, it is difficult to properly control the excessive deformation occurring in the glass support insulation bracket 2gb, so there is a problem of exposing structural weaknesses.

Document <CIT> relates to an insulation and glass panel supporting structure between a moving window that is a sliding window and a fixed window or a moving window and another moving window forming a sliding window system and, more specifically, to an insulation and glass panel supporting structure of a window chassis having an improved center bar section where window chassis of a moving window and a fixed window or another moving window overlap each other when closing a sliding window of a two-side supporting frame window type supporting both side surfaces of a window forming the sliding window.

The present invention is to solve the common problems of the prior art described above. In a sliding window system having a two-side supporting frame window sash that supports only both sides of a glass window constituting a sliding window, it is a technical problem of the present invention to provide a specially improved structure not only for securing a better glass panel fixing function by constructing a narrow window chassis 2b that exists only on both sides of the glass <NUM> with using an aluminum material having sufficient rigidity and durability, but also for achieving a better insulation function by blocking heat transfer due to convection or conduction in the insertion pocket formed on the side section of the door frame in the side section where the two-side supporting frame window chassis and the door frame are overlapping on each other, as much as possible.

In order to solve the above-described technical problem, the present invention provides an insulating structure in which a side chassis part of a two-side supporting frame window chassis and a door frame in a side section are overlapping on each other, when a sliding window is closed in a two-side supporting frame window type sliding window system that supports only both sides of the glass window constituting the sliding window,.

Here, in the insulating structure in which a side chassis part of a two-side supporting frame window chassis and a door frame in a side section are overlapping on each other, when a sliding window is closed in a two-side supporting frame window type sliding window system that supports only both sides of the glass window constituting the sliding window, the foamed insert member for blocking thermal bridge is formed to have a '⊂' shape (a channel shape with one inner side open) so that can fill all of a front surface, a side surface, and a back surface of the insertion pocket of the door frame.

Meanwhile, in the insulating structure, the foamed insert member for blocking thermal bridge is formed by integrally molding a foamed plastic-based heat insulating material that can have both heat insulation properties and shape retention properties.

According to the insulating structure in the sliding window system of the two-side supporting frame window type to which the present invention is applied, in the side section where the two-side supporting frame window chassis and the door frame overlap each other when the sliding window is closed, by minimizing heat transfer due to conduction or convection that may occur inside the insertion pocket by filling the gap space in the insertion pocket between the inner side of the door frame and the aluminum side cap of the side chassis portion of the sliding window with the foamed insert member for blocking thermal bridge with excellent thermal insulation performance, it provides the effect of maximizing energy efficiency and preventing condensation.

In the sliding window system employing the structure according to the present invention, by making it possible to use a side cap made of an aluminum material having relatively high rigidity and durability in the side chassis of the sliding window, the insulation structure has a more stable control force against the displacement or deformation of the glass panel support bracket (glass support insulation bracket made of flexible material) generated by wind pressure.

In addition, it provides the effect of ensuring good thermal insulation performance through the foamed insert member for blocking thermal bridge with excellent thermal insulation performance that fills the gap space in the insertion pocket between the inner side of the door frame and the aluminum side cap of the side chassis portion of the sliding window.

Hereinafter, embodiments that are easily performed by those skilled in the art will be described in detail with reference to the accompanying drawings. However, the embodiments of the present invention may be achieved in several different forms and are not limited to the embodiments described herein, but are limited by the scope of the appended claims.

As described above, in the sliding window improved to increase the openness of the windows, the present invention provides a new thermal insulation structure in a side section in which a door frame and a two-side supporting frame window chassis having a relatively narrow frame width compared to a four-side supporting window chassis are overlapping on each other. According to a preferred embodiment of the present invention illustrated through the drawings shown in the accompanying drawings <FIG>, when a sliding window <NUM> is closed in a two-side supporting frame window type sliding window system that supports only both sides of the glass window constituting the sliding window, a side chassis part <NUM> of the two-side supporting frame window chassis and the door frame <NUM> in an insulating structure in the side section are overlapping on each other,.

Here, it is preferable for the foamed insert member for blocking thermal bridge <NUM> to be formed to have 'C' shape (a channel shape with one inner side open) that can fill all of a front surface, a side surface, and a back surface of the insertion pocket 100v of the door frame <NUM>.

In addition, as shown enlarged as [Part-C1] in <FIG>, the foamed insert member for blocking thermal bridge <NUM> according to the first embodiment of the present invention is made of a composite material. That is, an assembly of the composite material provided by attaching foam rubber <NUM> or foamed Styrofoam™ (foamed styrene resin, expanded polystyrene), which has excellent thermal insulation properties but relatively low ability to maintain shape and durability, to a thin synthetic resin plate <NUM> having relatively low thermal insulation performance but high ability to maintain shape and durability (as illustrated in <FIG>) is installed in the insertion pocket 100v of the door frame <NUM> in the shape of the 'C' shape (the channel shape with one inner side open) and on an outer surface of the insertion pocket 100v of the thin synthetic resin plate <NUM>, that is, toward an inner side <NUM> of the door frame <NUM>, as a square-shaped foam material, foam rubber <NUM>, or foamed Styrofoam™ (foamed styrene resin, expanded polystyrene) is inserted.

On the other hand, according to the second embodiment of the present invention additionally shown in <FIG>, the foamed insert member for blocking thermal bridge <NUM> may be formed by integrally molding a foamed plastic-based heat insulating material <NUM> that can have both appropriate heat insulation properties and shape retention properties (ability to maintain shape).

Preferably, fitting protrusions 110a and 152a or fitting grooves for mutual fitting coupling are provided between the foamed insert member for blocking thermal bridge <NUM> and the inner side <NUM> of the door frame <NUM>.

And, the foam rubber <NUM> (foam rubber) insulator having a closed-cell structure enlarged as [Part-C1] in <FIG> has excellent moisture-proofing properties, so even time elapses after construction, thermal conductivity maintains lower than that of other insulators and relatively stable status, therefore it has the advantage of long-lasting insulation retention.

In addition, the foamed plastic-based heat insulating material <NUM> shown in <FIG> may be a thermal insulation material made by foaming a plastic resin with a foaming agent, and has a lower thermal insulation property compared to a foam rubber <NUM>, but is useful as a building material requiring weather resistance since it can be maintained as a single shape. Representative examples for the foamed plastic-based heat insulating material <NUM> include extruded expanded polystyrene, rigid urethane foam, polyethylene foam, expanded PVC, and expanded polyurethane, etc.
The thermal conductivity may be in the range of about <NUM> to <NUM> kcal/mh°C at an average temperature of <NUM>.

A numerical analysis model (outside temperature -<NUM>, room temperature <NUM>: temperature difference ΔT = <NUM>) is designed to simulate the temperature of the window system configuration according to the embodiment of the present invention configured as above (that state in which the insertion pocket 110v is filled with the foamed insert member for blocking thermal bridge <NUM>). As a result of the numerical analysis test, as shown in the accompanying drawings <FIG> and <FIG>, it is possible to maintain a high temperature of <NUM> at the reference point of the inner part <NUM> of the door frame <NUM>, thereby exhibiting high energy efficiency. Furthermore, the effect of preventing dew condensation was achieved.

And, as shown in the accompanying drawing <FIG>, in another comparative example (the comparative state in which the insertion pocket 110v is filled with only air without foamed insert member for blocking thermal bridge), surface temperature of <NUM> appears at the reference point of the inner side <NUM> of the frame <NUM>. As a result, with being compared with the embodiment of the present invention, it was found that a temperature drop of <NUM> appeared.

Claim 1:
An insulating structure in which a side chassis part (<NUM>) of a two-side supporting frame window chassis and a door frame (<NUM>) in a side section are overlapping on each other, when a sliding window (<NUM>) is closed in a two-side supporting frame window type sliding window system that supports only both sides of the glass window constituting the sliding window,
wherein the insulating structure provide a supporting structure in which a roller (20r) is directly coupled to a lower glass supporting insulation bracket (20b) made of a flexible material without an aluminum chassis under the glass panel (<NUM>) so that the roller (20r) slides along a guide rail on the door frame (<NUM>), and
wherein the insulating structure provide a foamed insert member for blocking thermal bridge (<NUM>) in an insertion pocket (100v) of the door frame (<NUM>) into which the side cap (21a) made of aluminum of the side chassis portion (<NUM>) of the sliding window (<NUM>) is inserted when a sliding window (<NUM>) comprising a glass support insulation bracket (20b) attached to the side of the glass panel (<NUM>); and a side chassis portion (<NUM>) having a side cap (21a) made of an aluminum material provided to support the glass support insulation bracket (20b) from the inner and outer surfaces, is sliding and is closing into a door frame (<NUM>),
characterized in that
the foamed insert member for blocking thermal bridge (<NUM>) is fixedly installed in a longitudinal direction on an inner part (<NUM>) of the door frame (<NUM>) with filling a gap space between the inner part (<NUM>) of the door frame (<NUM>) and the side cap (21a) made of an aluminum material of the side chassis portion (<NUM>) of the sliding window (<NUM>), and
wherein a rubber gasket (<NUM>) is installed in a longitudinal direction on an outer surface of the foamed insert member for blocking thermal bridge (<NUM>) in order to provide airtightness between the side caps (21a) made of aluminum and the foamed insert member for blocking thermal bridge (<NUM>).