KR20110085298A - Doorframe for dewdrops prevention - Google Patents

Abstract

PURPOSE: A door frame for dewing prevention is provided to prevent dewing on an entrance door due to the temperature difference between indoor and outdoor air. CONSTITUTION: A door frame for dewing prevention comprises a first frame(10), a second frame(20), and a spacer(30). The first frame is fixed to a wall as being located on the outdoor side of a door. The second frame is located on the indoor side of the door. The spacer is made of synthetic resin having low thermal conductivity, and the spacer has first and second fitting grooves on different sides in which one end of the first and second frame are respectively inserted and a third fitting groove in which a packing is fitted.

Description

Door frame for dew condensation {Doorframe for Dewdrops Prevention}

The present invention relates to a door frame for preventing condensation, and more particularly, to a door frame for preventing condensation, which supports a front door installed at an entrance of an apartment, a house, an office, and the like so that dew does not form due to a temperature difference between indoors and outdoors.

The door frame and the front door installed at the entrance of the building must be strong and durable to prevent intruders from entering the outside, so the metal is mainly used as the material.

As an example of such a door frame, "Fire Door Frame" is disclosed in Korean Patent Application No. 2004-71458 (hereinafter referred to as 'Prior Art 1'), which is shown in FIG.

The fire door frame of the prior art 1 constitutes a fitting groove 50 on both wing surfaces 10 and a pair of opposing frame frames 60 bent to increase the bonding force with the concrete pour material, and the two sides It is formed between the frame frame 60 and comprises a fire door sheet surface 90, the fire door locking jaw bent portion 80 and a horizontal frame 70 connecting them.

By the way, the fire door frame according to the prior art 1 is made of a metal material with high thermal conductivity, the wing surface 10, the frame frame 60 is integrally formed, if the indoor and outdoor temperature difference is severe, such as winter, dew on the indoor side This condensation phenomenon occurs.

Such condensation is classified into surface condensation in which water vapor in the air condenses in contact with low-temperature walls, finishes, and glass surfaces, and internal condensation that condenses when water in the internal air of the component, such as the wall, becomes relatively low compared to the ambient temperature.

Such condensation has a problem of deteriorating the strength of the metal door by deteriorating the fire door frame, as well as causing the cost of replacing the unsightly fire door frame by corrosion.

Meanwhile, Korean Patent Application No. 2004-1598 (hereinafter referred to as “Prior Art 2”) discloses a safety door including a door and a door frame, which is illustrated in FIG. 2.

As shown in Figure 2, the safety door of the prior art 2 to open and close the door (D) formed by joining the internal aggregate (11a) and the front and rear iron plate (10a, 10b) on the door frame (F). As the door to be installed, the bent groove (50a) is fixed to the door frame (F) is fixed to the insertion portion (44a) of the first safety packing (40a) having a buffer portion (42a) and integrally formed with the overlapping jaw (54a) And a space portion 60a extending to one side of the bent groove 50a and recessed to a predetermined size and depth.

In the safety door of the related art 2, a first guide packing 40a is installed between the door D and the door frame F, and the first guide packing 40a is disposed between the door D and the door frame F. FIG. The buffer frame 42a is positioned and the insertion portion 44a is positioned inside the bent groove 50a of the door frame F so that the door frame F is blocked from contacting the door.

However, although the safety door of the prior art 2 is blocked by the first guide packing 40a made of soft synthetic resin having low thermal conductivity, the door D and the door frame F are each made of a single metal material. The occurrence of condensation occurring in each of the door D or the door frame F could not be prevented.

Accordingly, the applicant of the present application filed Patent Application No. 2007-13419 to improve the problems of the prior art 1, 2 as 2007.02.08. And registered as 2007.12.11. (Registration Patent No. 10-786558)

That is, Patent No. 10-786558 is a condensation preventing door frame that prevents condensation even if there is a difference in indoor and outdoor temperature by fixing the spaced frame with a synthetic resin having a low thermal conductivity.

However, Patent No. 10-786558 is a spacer is inserted into the groove provided in the frame at the same time, the spacer is fixed to the fixing piece as a fastening means to be made firmly, the joining work is difficult and complicated accordingly There is a problem, and accordingly the present invention is an improvement of this Patent No. 10-786558.

That is, the present invention improves the difficulty and complexity of the coupling operation, which is a problem with the Patent No. 10-786558, while maintaining the effect of preventing condensation even when there is a difference between indoor and outdoor temperatures through a spacer having a low thermal conductivity synthetic resin material. By allowing the frame to be directly inserted into the spacer having the groove part, the coupling force between the spacer and the frame is firmly maintained even without a separate fixing means (for example, a fixing pin), as well as the difficulty and complexity of the work due to the coupling. The purpose is to provide a door frame for preventing condensation.

The condensation preventing door frame of the present invention for achieving the above object is divided into a first frame located on the outdoor side and a second frame located on the indoor side so as to be fixed to the wall to form a door frame for opening and closing the door. A spacer formed of a synthetic resin having a low thermal conductivity to form a first and second fitting grooves into which one ends of the first and second frames are respectively fitted; It is configured to include.

In addition, the first and second fitting grooves are formed on different surfaces of the spacer, respectively.

In addition, the spacer is configured with a third fitting groove to be fitted with the packing.

In addition, the third fitting groove portion is configured to extend the locking groove to prevent the separation of the packing.

As such, the present invention is configured to be able to forcibly fit the frame directly to the spacer having a fitting groove, thereby maintaining the coupling force of the spacer and the frame firmly without using a separate fixing means, of course, the difficulty of working according to the coupling It can be expected to have a useful effect of eliminating condensation and preventing condensation even if there is a difference between indoor and outdoor temperatures through spacers, which are synthetic resin materials having low thermal conductivity.

1 is a cross-sectional view showing a conventional fire door frame.
2 is a cross-sectional view showing a conventional safety door.
3 is a cross-sectional view of a spacer structure in accordance with an embodiment of the present invention.
Figure 4 is a cross-sectional view showing the structure of the packing in an embodiment of the present invention.
Figure 5 is a cross-sectional view showing a structure of a door frame frame coupled to the spacer and the packing in an embodiment of the present invention.

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

Figure 3 is a cross-sectional view of a spacer structure according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing a structure of the packing in an embodiment of the present invention, Figure 5 is a door frame frame coupled to the spacer in the embodiment of the present invention It shows a cross-sectional view showing the structure of.

3 to 5, the condensation preventing door frame according to an embodiment of the present invention is fixed to the wall is configured to open and close the door, the first and second frames 10, 20 and spacers 30, And it comprises a packing 40.

The first and second frames 10 and 20 are divided into a first frame 10 located at an outdoor side and a second frame 20 located at an indoor side with respect to the door.

Here, the first and second frames 10 and 20 constitute left and right vertical line door frames with respect to the door, and horizontal line door frames with upper and lower sides based on the door.

The spacer 30 is firmly fixed to the first and second frames 10 and 20 so as not to be separated from each other, and prevents condensation from a gap between the coupling parts of the first and second frames 10 and 20. In order to be able to, the first and second fitting grooves 31 and 32 are formed on different surfaces so that one end of each of the first and second frames 10 and 20 is forcibly fitted. And forming a third fitting groove 33 to allow the packing 40 to be fit-fitted, and to prevent the packing 40 from being separated when the packing 40 is forcibly fitted to the third fitting groove 33. The locking groove 34 is configured to extend in a direction perpendicular to each other.

Here, the spacer 30 is made of a pre-made of a low thermal conductivity synthetic resin (for example, polyurethane) to serve to block the transfer of heat into and out of the door frame.

The packing 40 is located in a space provided between the first and second frames 10 and 20 coupled by the spacer 30, and one end of the packing 40 is pressed into the third fitting groove 33. Coupling protrusion 41 is formed to be fitted, the coupling protrusion 41 is configured to have a locking piece 42 which is seated in the locking groove portion 34 is formed to extend to the third fitting groove (33).

Door frame according to the embodiment of the present invention having such a configuration as shown in Figures 3 to 5 attached to one end of the first frame 10 in the first fitting groove portion 31 provided on one surface of the spacer 30 forcibly fitted. And fix one end of the second frame 20 to the second fitting groove 32 provided on the other surface of the spacer 30.

Then, the first and second frames 10 and 20 constituting the door frame around the spacer 30 can maintain a firm coupling state, and, of course, the first and second frames through the spacer 30. It is possible to prevent the condensation phenomenon occurring in the coupling portion of the frame 10, 20.

In this case, since the third fitting groove 33 having the locking groove 34 formed therein is formed in the spacer 30, the locking protrusion 41 of the packing 40 in the third fitting groove 33 is formed. ).

Then, as the locking piece 42 of the locking protrusion 41 is seated in the locking groove 34, the packing 40 is firmly coupled between the first and second frames 10 and 20. In this case, the packing 40 may block the air flow between the door and the first and second frames 10 and 20 in a state where the door is closed.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

10,20; 1st and 2nd frame
30; Spacer
31,32,33; 1, 2, 3 fitting groove
34; Locking groove
40; packing
41; Obstacle
42; Jam

Claims (4)

It is divided into a first frame located on the outdoor side and a second frame located on the interior side of the door so as to be fixed to the wall to form a door frame for opening and closing the door,
A spacer formed of a synthetic resin having a low thermal conductivity to form a first and second fitting grooves to which one ends of the first and second frames are respectively fitted, and to firmly fix the first and second frames; Door frame for preventing condensation, characterized in that comprising a. The condensation preventing door frame according to claim 1, wherein the first and second fitting grooves are formed on different surfaces of the spacer, respectively. The condensation preventing door frame according to claim 1 or 2, wherein the spacer has a third fitting groove for fitting the packing. 4. The condensation preventing door frame according to claim 3, wherein the third fitting groove portion extends a catching groove portion to prevent the packing from being separated.

Images