KR200287652Y1 - Door frame of assembling construction - Google Patents

Abstract

The present invention relates to a door frame for supporting the door 13 to be opened and closed, the pad 15 is interposed between the inner frame 11 and the outer frame 12 and coupled to the fastening means. The inner frame 11 has a plurality of incision grooves 11a to be spaced apart from the engagement surface by a predetermined gap, and the outer frame 12 is inserted into the incision grooves 11a and extended in plurality at the end of the coupling surface to engage with it. Is provided with a projection 12a, the fastening means is integrated in the state that the inner frame 11 and the outer frame 12 is coupled. As an example of the present invention, the fastening means welds the projection piece 12a of the outer frame 12 exposed through the cutting groove 11a of the inner frame 11. As a modification of the present invention, the fastening means bends the protrusion 12a of the outer frame 12 exposed through the cutting groove 11a of the inner frame 11.

Accordingly, there is an effect of improving workability in production and durability in use.

Description

Door frame of assembling construction

The present invention relates to a door frame of a building, and more particularly, to a door frame of a combined structure to improve workability in production and durability in use.

In general buildings, door frames and doors are essential materials that cannot be omitted. They should be provided with the functionality to maintain flame retardancy and fire protection in the event of fire, and to be decorated with interior and exterior interiors. In particular, household doors for apartment houses, apartments, and multi-family homes are excluded from the installation of fire doors, which may cause damage in case of fire spread, and legislation is mandatory to install household doors as fire doors. Therefore, even if wood is used to enhance the decoration, it is partially limited only to the surface, and eventually a structure reinforced by steel is adopted.

At this time, the door frame (frame) of the steel is not as diverse as the door, but can be produced in a variety of structures and as the structure of bending the iron plate is complicated, and the inside and the outside are combined by molding. The mutually engaging portions are formed in a plane having a certain width, and a pad is sandwiched between the mating surfaces and fastened with bolts or rivets.

However, no matter how flexible the pad is, bolts or rivets are difficult to pass through at once, increasing production difficulty and increasing costs. If the pad is broken during the fastening process, noise may be caused by friction between the mating surfaces of the frame when the door is opened and closed. In some cases, the pads are pre-drilled in advance, but the bolts and rivets are not smoothly coupled because the position is changed due to the pressure applied during the joining.

In addition, even after fastening bolts or rivets, dimensional accuracy of the finished frame is not maintained due to play with the fastening holes. Accordingly, there is a disadvantage that the operation of the frame is partially interfered with the door after the installation of the frame, and the operation and the noise are severe during use, and the risk of detachment increases as the time passes.

Accordingly, the present invention is to solve the above-mentioned disadvantages, to provide a door frame of the coupling structure to improve workability in production and durability in use.

1 is a front view showing a state in which a door is installed in the door frame according to the present invention,

2 is a cross-sectional view showing the structure of the door frame and the door by cutting A-A of FIG.

3 is a perspective view showing a partially cut in the door frame according to the present invention,

4 is an exploded perspective view of FIG. 3;

5 is a cross-sectional view of FIG.

6 is a cross-sectional view of the combination according to the modification of FIG.

Explanation of symbols on the main parts of the drawings

11: internal frame 11a: incision groove

12: outer frame 12a: stone piece

13: door 14: cushioning piece

15: pad

In order to achieve the above object, the present invention provides a door frame that supports the door 13 in such a way that it can be opened and closed.

An inner frame 11 having a plurality of cutting grooves 11a so as to be spaced apart from the coupling surface by a predetermined gap; An outer frame (12) having a plurality of protrusions (12a) extending from the end of the mating surface to be inserted into and engaged with the cutting groove (11a); And a fastening means for integrating the inner frame 11 and the outer frame 12 in a coupled state.

As an example of the present invention, the fastening means welds the projection piece 12a of the outer frame 12 exposed through the cutting groove 11a of the inner frame 11.

As a modification of the present invention, the fastening means bends the protrusion 12a of the outer frame 12 exposed through the cutting groove 11a of the inner frame 11.

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

1 is a front view showing a state in which a door is installed in the door frame according to the present invention, Figure 2 is a cross-sectional view showing the configuration of the door frame and the door cut A-A of FIG.

The present invention relates to a door frame supporting the door 13 to be opened and closed, and is a structure that is completed by combining the inner frame 11 and the outer frame 12. Although the inner frame 11 and the outer frame 12 have a slight difference depending on the shape of supporting the door 13, the inner frame 11 and the outer frame 12 are roughly three to four bends. The parts engaged with each other in the frames 11 and 12 are formed in a plane having the same width, and the pad 15 is interposed therebetween. When the buffer piece 14 for coupling the door 13 to the outer frame 12 is bent into a more complicated cross-sectional shape so as not to be exposed to the outside.

In FIG. 2, reference numeral 16 denotes an iron plate mounted in an opening for joining the inner frame 11 and the outer frame 12, and is attached at the final stage when the joining of the frames 11 and 12 is completed to close the opening. Reinforce the torsion stress.

Figure 3 is a perspective view showing a partially cut in the door frame according to the present invention, Figure 4 is an exploded perspective view of Figure 3, Figure 5 is a cross-sectional view of FIG.

The inner frame 11 according to the present invention is provided with a plurality of cutting grooves 11a spaced apart from the coupling surface by a predetermined gap. When the planar portion bent horizontally in the vertical plane as the engaging surface, the incision groove 11a is formed as close as possible to the engaging surface on the vertical surface. The distance (gap) from which the cutout groove 11a is spaced apart from the mating surface is slightly smaller than the thickness of the pad 15. The height of the cutout groove 11a is equal to or slightly smaller than the thickness of the iron plate material so that an appropriate pressing force is applied to the pad 15 when the frames 11 and 12 are coupled.

In the conventional case, 24 or more bolts (or rivets) are usually fastened, such as eight on each side of the door frame and four on the top and bottom surfaces. On the other hand, the coupling structure of the present invention is different from the conventional one, but the cutting groove 11a according to the present invention is formed in a much smaller quantity than this, and the installation quantity is further reduced as the width of the cutting groove 11a is increased. The width of the cutout groove 11a is related to the projection piece 12a of the outer frame 12, which will be described later.

The outer frame 12 according to the present invention has a plurality of protrusions (12a) extending from the end of the coupling surface to be inserted into the cutting groove (11a) to engage. The protrusion pieces 12a are formed in the same size and quantity as the cutting grooves 11a of the inner frame 11. The size of the cutout groove 11a is slightly smaller than that of the stone pieces 12a, so that the fitting is possible. In this case, if a slight gradient is placed on both sides of the stone pieces 12a, the coupling is easy.

In addition, according to the present invention includes a fastening means for integrating the inner frame 11 and the outer frame 12 in a coupled state. Conventional bolts or rivets are excluded as the fastening means, and the above-described cutting grooves 11a and the projections 12a are utilized to the maximum.

In FIG. 5, the fastening means welds the protrusion pieces 12a of the outer frame 12 exposed through the cutting groove 11a of the inner frame 11. Even if the projection piece 12a of the outer frame 12 is inserted into the cutout groove 11a of the inner frame 11, the bonding strength is not large, so welding (W) is performed on the projection piece 12a on the rear surface of the inner frame 11. . It is good to increase the width dimension of the protrusion 12a so that the protrusion 12a may not melt or thermally deform in the welding W. As shown in FIG.

6 is a cross-sectional view of the combination according to the variant of FIG. 3.

In a variant of the present invention, the fastening means bends the protrusion 12a of the outer frame 12 exposed through the cutting groove 11a of the inner frame 11. The protrusion pieces 12a of the outer frame 12 are pressed into the cutout grooves 11a of the inner frame 11 and then bent by hitting the exposed portions. In this case, it is preferable to use a jig (not shown) so that the inner frame 11 and the outer frame 12 are not shaken during the bending process. It can be seen that the projection piece 12a is bent from the position of the dotted line to the position of the solid line in the illustration. Instead of bending in the same direction, instead of bending in the opposite direction, the coupling force is increased.

At this time, in any of the above-described case of Figs. 5 and 6, the opening formed in the position 16 of Fig. 2 is used for the joining operation of the frames 11 and 12.

In this way, since the present invention does not need to puncture the pad 15 when the inner frame 11 and the outer frame 12 are coupled, the physical properties of the pad 15 are maintained for a long time and the inner frame 11 and the outer frame ( Absorbs friction and noise smoothly due to the fluctuation of 12).

According to the above configuration and action, the door frame of the coupling structure according to the present invention has the effect of improving the workability in production and durability in use.

It is apparent to those skilled in the art that the present invention is not limited to the embodiments described, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or modifications will have to belong to the utility model registration claims of the present invention.

Claims (3)

In the door frame which supports the door 13 so that opening and closing is possible, An inner frame 11 having a plurality of incision grooves 11a spaced apart from the engaging surface by a predetermined gap; An outer frame (12) having a plurality of protrusions (12a) extending from the end of the mating surface to be inserted into and engaged with the cutting groove (11a); And The door frame of the coupling structure, characterized in that it comprises a fastening means for integrating the inner frame 11 and the outer frame 12 in a coupled state. The method of claim 1, The fastening means is a door frame of the coupling structure, characterized in that the welding of the projection (12a) of the outer frame 12 exposed through the cutting groove (11a) of the inner frame (11). The method of claim 1, The fastening means is a door frame of the coupling structure, characterized in that the bent piece (12a) of the outer frame 12 exposed through the cutting groove (11a) of the inner frame (11).