KR20180087951A - Improving Combination Structure of Doorframe and Reinforcing Member of Doorframe - Google Patents

Abstract

The present invention relates to an improved structure to couple a doorframe and a doorframe reinforcement material, which prevents the doorframe from going out from the doorframe reinforcement material. According to the present invention, the improved structure to couple a doorframe and a doorframe reinforcement material comprises the doorframe (410) and the doorframe reinforcement material (420). The doorframe comprises: a door installation part (411); a timber insertion part (412); a first protrusion part (413) having a concave groove (413a) formed therein; a second protrusion part (415) protruding to a rear side to allow a separation space from the first protrusion part (413) to form a recess part (414), and having a concave groove part (415a) formed therein; and a sealing material insertion groove (416). The doorframe reinforcement material (420) comprises: a bottom part (421) in contact with the bottom surface of the recess part (414); left and right side surface parts (422, 423) upwardly bending both sides from the bottom part (421) to be adjacent to both side surfaces of the recess part (414), respectively; a first insertion part (424) formed on left side surface part and protruding identical with the concave groove part (415a) of the second protrusion part (415); a horizontal part (425) in contact with the upper surface of the first protrusion part (413); an outer part (426) in contact with the outer surface of the protrusion part (413); and a second insertion part (427) inserted and fixed in the concave groove (413a) of the first protrusion part (413).

Description

TECHNICAL FIELD [0001] The present invention relates to an improved door frame and frame reinforcement joining structure,

The present invention relates to a door frame for reinforcing a door frame in which a door frame is inserted and a concave groove is formed on an inner side of a protrusion for forming a concave portion inside the door frame to firmly engage the door frame reinforcements coupled to the door frame, To reinforce the strength of the sealing material insertion groove portion to which the door frame and the frame reinforcement are coupled.

Generally, a frame applied to a door frame (window frame) of a building is composed of a metal and a non-ferrous metal, and is excellent in durability. However, the frame is fragile due to moisture and moisture and has a drawback in that it is corroded, Synthetic wood or door frames molded from synthetic resin are widely used.

A partial cross-section of a conventional door frame (or window frame) is shown in Fig.

As shown in the figure, a plurality of concave grooves 103 and 104 are formed in the longitudinal direction of the door frame 102 on the outer side of the door frame 102 fixed to the wall 101, And the reinforcement neck 107 is coupled to the other side groove 104. The other side of the reinforcement neck 107 is connected to the rear side of the frame 100 And one side of the hinge 108 is fastened to the inner side of the door frame 102 by the direct coupling piece 109 and the other side of the hinge 108 is fastened to the side of the door 110 by the direct coupling piece 111. [ So that it can be opened and closed.

Since the door 110 is heavy in weight and rotates around the hinge 108, the load is concentrated on the door frame to which the hinge 108 is fastened. Therefore, the direct-coupled piece 109 for fastening the hinge 108 penetrates through the door frame 102 using the long straight-piece piece, and then tightly fastened to the reinforcement neck 107 to form the hinge 108 and the door 110, So that the load concentrated on the portion of the hinge 108 can be sufficiently sustained.

A plurality of fixing members 112 (anchors) are fastened to the side of the frame reinforcement member 105 at predetermined intervals by the direct-connection pieces 113 and the projections of the fixing member 112 protruding to both sides of the door frame 102 The portion is bent in the direction of the wall 101 and then fixed to the wall 101 by the concrete nail 114 or the like and is joined with the filler 115 or the like between the wall 101 and the door frame 102, The reinforcing neck 107 is finished with a mortar 116 or a covering member and then is finished with a covering material 117 such as a wallpaper, a tile, a board or a paint on the side of the wall 101 including the bent portion of the reinforcing neck 107, (108) is firmly fastened.

The frame reinforcement member 105 is fastened to the door frame 102 by means of the interlocking piece 106 of about twenty pieces after being inserted into the door frame 102 so that the cost of using the interlocking piece 106 is increased, Since the fastening pieces 106 around the 30 pieces are fastened and fixed one by one, the fastening time is 10 minutes or more depending on the skill of the worker, and the labor cost is increased, the working time is increased, the productivity is decreased, There is a problem.

In order to solve the problem of fastening and fixing the direct connection piece 106 to fix the frame reinforcement 105 to the door frame 102, Korean Patent No. 10-1522945 (name of the invention frame frame reinforcement frame) The frame reinforcement frame is shown in Fig. 2, and the door frame applied thereto is shown in Fig.

The frame reinforcement frame 220 has both side bottom portions 222 and 223 and an elastic connecting portion 224 having a predetermined width and a predetermined height formed between the bottom portion 222 and the bottom portion 223, A horizontal portion 229 and 230 that are horizontally bent at the ends of the tangential portions 226 and 227 and a tangential portion 226 that is bent at both ends of the tangent portion 226 (223) formed at an intermediate portion of the door frame (227) and engagingly engaged with the engaging grooves (253) and (254) of the door frame (221); .

At this time, the inclined portions 311 and 321 having a short length, the inclined portions 312 and 322 having a long length, the horizontal portions 313 and 323 having a short length and the inclined portions 312 and 322 having a long length, , Or an inclined portion having the same length are alternately constituted.

A short inclined portion 311 and a long inclined portion 312 having a shape corresponding to the engaging portions 231 and 232 are formed on the door frame 221 in a shape of a short inclined groove 531 of the engaging recesses 253 and 254 of the door frame 221 ) 541 and long inclined grooves 532 and 542, respectively.

When the door frame reinforcement frame 220 is inserted into the door frame 221 by interference fit, the engaging portions 231 and 232 are inserted into the engagement grooves 253 and 254 provided in the door frame 221, So that the frame reinforcement frame 220 is fixed to the door frame 221 without the need of a direct connection piece.

Since the latching portions 231 and 232 of the frame reinforcement frame 220 are elongated in the longitudinal direction of the door frame 221, the amount of bending is increased and the productivity is lowered. Further, since the dimensional change of the material due to a large amount of bending and the change of the shape of the frame reinforcement frame 220 due to the spring back are generated, the frame reinforcement frame 220 is correctly coupled to the door frame 221 There is a difficult problem. The frame reinforcement frame 220 is coupled to the coupling grooves 253 and 254 of the door frame 221 even if the door frame reinforcement frame 220 is inserted into the coupling grooves 253 and 254 of the door frame 221 The engaging portions 231 and 232 are weakened in strength, and the door frame reinforcing frame is easily detached from the door frame at the time of construction.

Since the latching portions 231 and 232 of the frame reinforcement frame 220 are integrally formed long in the longitudinal direction of the door frame, when one end of the frame reinforcement frame 220 starts to be separated from the door frame 221, The other end portion of the door frame 220 is also detached from the door frame 221, so that the door frame reinforcement 420 and the door frame 221 are easily separated from each other. Accordingly, there is a problem in that the frame reinforcement frame 220 must be fixed to the door frame 221 by using a direct-connected piece.

Korean Patent No. 10-1647742 (name of invention: frame reinforcement material and manufacturing method thereof) filed by the present applicant and registered in order to solve such a problem has been disclosed.

The door frame stiffener is provided with a door mounting portion 301c on one side of its outer side and is provided on the other side of the door mounting portion 301c and has protruding portions 301a Sectional shape of the frame body main body 301 having a concave portion 301b which is recessed so as to form a concave portion 301b of the door frame 301. The reinforcement member 301 is inserted into the concave portion 301b, A bottom portion 311 which is formed to be elongated in the longitudinal direction of the concave portion 301b and contacts the bottom surface of the concave portion 301b; At least one of the side part 312 and the side part 312 is horizontally bent outward so as to be in contact with the outer end surface of the protrusion 301a and a horizontal part 313 protruding outwardly from the side part 12, At a predetermined interval in the longitudinal direction of the door frame main body 301 And is provided with multiple pieces, the urine comprises a withdrawal prevention protrusions 314 to prevent contact with the side surface of the ipbu (301b) being separated from ipbu (301b) the urine.

Since the frame reinforcement is fixed only by inserting the straight frame pieces into the door frame in order to fix the frame frame reinforcement to the frame, it is very easy to fix, and the labor cost for fixing the straight pieces can be reduced. It is possible to prevent weakening of the strength of the door frame.

However, since the door frame reinforcement is separated from the door frame by an external force and the escape preventing protrusion 314 formed on the door frame reinforcement is press-fitted into the door frame main body 301, the door frame main body 301 is damaged .

In addition, a seal member is coupled to the door frame for sealing the door, and a seal member insertion groove is formed in the door attachment portion 301c of the door frame. The sealing member insertion groove is formed to be long in the longitudinal direction of the door frame main body 301 in the door frame main body 301. If the sealing member insertion groove is provided in the door frame main body 301, the strength of the sealing member insertion groove portion is lowered, and the door frame is damaged due to frequent use of the door.

Accordingly, it is required to develop a frame reinforcement material that can reinforce the strength of the sealing material insertion slot portion while reinforcing the door frame.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a door frame reinforcement for a door frame, And to provide an improved door frame and frame reinforcement joining structure for preventing the door frame from being detached from the reinforcement.

It is another object of the present invention to provide an improved door frame and door frame reinforcement joining structure which can prevent the door frame from being damaged by the escape preventing protrusion and reinforce the strength of the sealant insert groove portion.

In order to accomplish the above object, the improved door frame and frame reinforcement joining structure of the present invention includes a door installation part 411 formed on one side of an outer side in a longitudinal direction and provided with a door, A wooden insert part 412 for inserting wood for reinforcing the door mounting part 411 in the door mounting part 411; A first projection 413 formed with a long recessed groove 413a and a second projection 413 spaced apart from the first projection 413 and adjacent to the wooden insert 412 are projected rearward, A second protrusion 415 having a recessed portion 415a elongated in the longitudinal direction at an upper portion of the inner side so as to form a recessed space 414 with respect to the door mounting portion 411, And the second protrusion (415) is formed on the back surface of the second protrusion Section 415 to be perpendicular to the door frame 410 is formed long in length is formed by inserting sealing member groove 416 having a concave; A bottom portion 421 which is formed to be long in the longitudinal direction of the door frame 410 and contacts the bottom surface of the concave portion 414 and a bottom portion 421 which is bent upward from both sides of the bottom portion 421, And a first insertion part formed on the left side surface part 422 and protruding in the same shape as the recessed part 415a of the second projection part 415 and extending in the longitudinal direction, A horizontal part 425 bending outward from the right side part 423 and in contact with an upper surface of the first projecting part 413; A first insertion portion 413a of the first protrusion 413 and a second insertion portion 413b of the first insertion portion 413b which are bent inwardly at the end of the outer side portion 426, And a door frame stiffener 420 provided with a door frame 427.

The first insertion portion 424 of the window frame stiffener 420 includes an inclined portion 424a protruding in a " C "shape and inclined upward from the upper portion, And an inner folding horizontal portion 424c formed horizontally inwardly from the upright portion 424b. The recessed portion 415a of the door frame 410 is formed in a "C" shape An upright recessed groove portion 415d that is erected upward from the inclined recessed recessed portion 415c and is formed horizontally from the upright recessed recessed portion 415d; And a horizontal recessed portion 415e.

In addition, the frame reinforcement 420 may include a first detachment protrusion 423a protruding outward from the right side face portion 423 and having a plurality of protrusions 423a spaced at a predetermined interval in the longitudinal direction of the door frame 410 Preventing protrusions 422a protruding outward from the left side surface portion 422 and provided at a predetermined distance in the longitudinal direction of the door frame 410, A fixing groove 413b formed in the inner surface of the first protrusion 413 so as to protrude in the longitudinal direction of the door frame 410 and inserted and fixed to the first detachment protrusion 423a, And a second protrusion 415a formed on the lower inner surface of the second protrusion 415 in a longitudinal direction of the door frame 410 and inserted into the second protrusion protrusion 422a, 2 fixing groove 415b for the separation preventing protrusion The features.

The first and second escape prevention protrusions 423a and 422a protrude laterally from both sides and have protruding surfaces formed in a right triangular shape and have an inverted triangular pyramid shape in which the bottom surface faces the upper portions of the left and right side portions 422 and 423 .

The first and second escape prevention protrusions 423a and 422a protrude laterally from both sides and have a protruded surface formed in a right triangle shape and the bottom surface of the first and second escape prevention protrusions 423a and 422a has an inverted triangular shape And is rolled by a separate roller provided with a triangular-pyramidal projection having a vertical cross-sectional shape of a right-angled triangle. In the rolling process, the upper portion is cut into a straight shape, and the cut- And is formed to have a triangular pyramid shape.

In addition, the frame reinforcement 420 is provided with a third departure prevention protrusion 426a protruding inward from the outer side portion 426 and provided at a predetermined distance in the longitudinal direction of the door frame 410 The door frame 410 is formed on the outer surface of the first protrusion 413 in the longitudinal direction of the door frame 410 so as to be inserted into the third detachment protrusion 426a, And a fixing groove 413c for the projection is provided.

The third separation preventing protrusions 426a protrude laterally from both sides. The protruding surfaces form a right triangle. The bottom surface of the third separation preventing protrusions 426a has an inverted triangular pyramid shape that faces the upper portions of the left and right side surfaces 422 and 423, The upper portion is cut into a straight shape at the time of rolling so that the cut portion protrudes outward to form an inverted triangular pyramid having an upper portion opened. Is formed.

In addition, the upright portion 424b of the first insert portion 424 of the frame reinforcement 420 is protruded outwardly, and a plurality of fourth detachment preventing portions 422 are provided at a predetermined interval in the longitudinal direction of the door frame 410, The protruding portion 424b is provided on the inner bent horizontal portion 424c of the first insert portion 424 of the door frame stiffener 420 and is spaced apart from the door frame 410 by a predetermined distance Preventing protrusions 424c 'which are provided on the rear surface of the door frame 410 and are formed inward in the upright recessed grooves 415d of the recessed grooves 415a of the door frame 410, Preventing protrusions are inserted and fixed and the fourth unlatching protrusions for the fourth unlatching protrusions 415d 'are inserted into the first unlatching protrusions and the fourth unlatching protrusions 424b' The recessed groove 415e is formed in an upper portion so as to be recessed and formed in the longitudinal direction of the door frame 410, Form and is characterized in that the said fifth departure prevention protrusions (424c ') and the fifth withdrawal prevention protrusion is inserted is fixed bouillon fixing groove (415e') are provided.

The fourth and fifth release preventing protrusions 424b 'and 424c' protrude laterally from both sides. The protruding surfaces of the fourth and fifth release preventing protrusions 424b 'and 424c' form a right triangle. The bottom surfaces of the fourth and fifth release preventing protrusions 424b 'and 424c' The upper portion is cut out in the form of a straight line at the time of rolling, and the cut-out portion protrudes outward, so that the upper portion of the opening And is formed to have an inverted triangular pyramidal shape.

The bottom portion 421 includes left and right upwardly bent portions 428a that are upwardly bent so as to protrude upward from the center portion and horizontal bent portions 428a that are horizontally bent from the left and right upward bent portions 428a, The reinforcing portion 428 is formed of a horizontal bent portion 428b connecting the upper end portion 421a and the lower end portion 422b.

The improved door frame and frame reinforcement joining structure of the present invention having the above-described structure is fixed by simply inserting the straight frame pieces into the door frame so as to fix the frame frame reinforcement to the door frame, The labor cost for fixing can be reduced, and the strength of the door frame can be prevented from being weakened due to the fastening of many string fasteners. In addition, since the protrusion fixing grooves are elongated in the longitudinal direction of the door frame and the release preventing protrusions provided on the door frame reinforcement are inserted and fixed in the protrusion fixing grooves, the door frame reinforcement can be prevented from being detached from the door frame, have.

In addition, the durability of the door frame can be improved by reinforcing the strength of the edge portion of the door frame main body, which is the sealing material insertion groove portion of the door frame main body, which is weak in strength.

1 is a partial sectional view of a conventional door frame.
2 is a view showing a conventional frame reinforcement frame.
Fig. 3 is a view showing a door frame applied to Fig. 2. Fig.
4 is a view showing a conventional frame stiffener.
5 is an exploded perspective view showing an improved door frame and frame reinforcement joining structure according to the present invention.
Fig. 6 is a longitudinal sectional view of Fig. 5; Fig.
7 is a longitudinal sectional view showing a state in which the improved door frame and frame reinforcement according to the present invention are combined.
8 is a longitudinal sectional view showing another modified door frame and frame reinforcement according to the present invention in a separated state.

Hereinafter, the frame reinforcement according to the present invention will be described in detail with reference to the drawings.

FIG. 5 is an exploded perspective view showing an improved door frame and frame reinforcement joining structure according to the present invention, FIG. 6 is a longitudinal sectional view of FIG. 5, and FIG. 7 is a view showing an improved door frame and frame reinforcement according to the present invention And FIG. 8 is a vertical sectional view showing another modified door frame and frame reinforcement according to the present invention in a separated state.

A door is provided on the door frame 10 and the door frame reinforcement 420 is coupled to the rear surface of the door frame 410 to reinforce the door frame 410.

4 to 8, the door frame 410 of the present invention includes a door installation portion 411, a wooden insertion portion 412, a first projecting portion 413, a second projecting portion 415, Sealing material insertion grooves 416 are provided.

The door mounting portion 411 is formed on one side of the outer side surface in the longitudinal direction and has a door.

The wood insert 412 is inserted with wood for reinforcing the door mount 411 on the rear surface of the door mount 11.

The first protrusion 413 protrudes rearward from the other rear surface of the door mounting part 411 and is formed on the outer middle part of the door protrusion 413 so as to be perpendicular to the protruding direction. The second insertion portion 427 of the door frame stiffener 420 to be described later is inserted into the concave groove 413a to fix one side of the door frame reinforcement 420. [

The second projection 415 is spaced apart from the first projection 413 and is adjacent to the wooden insertion part 412 so as to protrude rearward so that a space separating the first projection 413 from the first projection 413 is formed in the recess 414 And a recessed portion 415a is formed in the upper portion of the inner side surface so as to be elongated in the longitudinal direction. The first insertion portion 424 of the door frame stiffener 420 to be described later is inserted into the recessed portion 415a and the other side of the door frame reinforcement 420 is fixed.

The sealing member insertion groove 416 is formed in the door mounting portion 411 and formed on the rear surface of the second protrusion 415 so as to be perpendicular to the second protrusion 415 and to be long in the longitudinal direction. A sealing member (not shown) is inserted into the sealing member insertion groove 416 and is interposed between the door and the door frame 410 to seal between the door and the door frame 410.

The frame reinforcement 420 is inserted into the concave portion 414 of the door frame 410 to reinforce the door frame 410 as shown in FIGS.

5 and 7, the frame reinforcement 420 of the present invention has a cross-section of a " C "shape and is elongated in the longitudinal direction of the door frame 410, Left and right side portions 422 and 423, a first insertion portion 424, a horizontal portion 425, an outer side portion 426, and a second insertion portion 427.

The bottom portion 421 is in contact with the bottom surface of the concave portion 414.

The left and right side portions 422 and 423 are bent upward from both sides of the bottom portion 421 to extend to both sides of the recessed portion 414, that is, the opposite sides of the first and second projected portions 413 and 415, Respectively.

The first inserting portion 424 is formed on the left side surface portion 422 and protrudes in a " C "shape like the recessed portion 415a of the second protrusion portion 415 and is formed long in the longitudinal direction. The first inserting portion 424 is inserted into the recessed portion 415a of the second protrusion 415 so that the other side of the door frame reinforcement 420, that is, the left side of the door frame reinforcement 420 is fixed to the door frame 410 do.

The horizontal portion 425 is bent outward from the right side surface portion 423 and comes into contact with the upper surface of the first projection portion 413.

The outer portion 426 is bent downward from the horizontal portion 425 and contacts the outer surface of the first protrusion 413.

The second inserting portion 427 is bent inward at the end of the outer side portion 426 and inserted and fixed in the concave groove 413a of the first projecting portion 413 to be fixed to one side of the frame reinforcement 420, The right side of the frame reinforcement 420 is fixed to the door frame 410.

The second insert part 427 formed on one side of the frame reinforcement 420 is inserted into the first protrusion part 413 of the door frame 410, The first insertion portion 424 which is inserted and fixed in the groove 413a and protruded in the shape of a letter formed on the other side of the door frame stiffener 420 is inserted into the second protrusion 415 formed on the door frame 410 So that the frame reinforcement 420 is stably fixed without being detached from the door frame 410 after being fixed by being inserted into the recessed portion 415a.

The first insertion portion 424 protruding in the shape of a letter C formed on the other side of the window frame stiffener 420 is inserted into the recessed portion 415a of the second projection 415 formed in the door frame 410 It is possible to improve the strength of the door frame 410 by reinforcing the rear portion of the corner where the weakest sealing material insertion groove 416 of the door frame 410 is formed.

In order to improve the coupling force between the door frame 410 and the door frame reinforcement 420, the door frame reinforcement 420 is provided with a first detachment protrusion 423a and a second detachment protrusion 422a Preventing protrusion 423a and the second detachment protrusion 422a are inserted into the fixing hole 413b and the second detachment protrusion 422a are formed in the door frame 410, And a fixing groove 415b for preventing protrusion is provided.

The first separation preventing protrusions 423a protrude outward from the right side surface portion 423 and are provided at a predetermined distance in the longitudinal direction of the door frame 410.

The second separation preventing protrusions 422a protrude outward from the left side surface portion 422 and are provided at a predetermined distance in the longitudinal direction of the door frame 410.

The first escape preventing projection fixing groove 413b is elongated in the longitudinal direction of the door frame 410 on the inner surface of the first projection 413 and the first escape preventing projection 423a is inserted and fixed do.

The securing groove 415b for the second detachment prevention projection part is formed on the inner bottom surface of the recessed portion 415a of the second protrusion 415 so as to be elongated in the longitudinal direction of the door frame 410, (422a) is inserted and fixed.

The first and second detachment prevention protrusions 423a and 422a are inserted into and fixed to the fixing recess 413b for the first detachment protrusion and the fixing recess 415b for the second detachment protrusion, So that the frame reinforcement 420 is not detached from the door frame 410 and the fixing force is doubled.

At this time, the first and second departure preventing protrusions 423a and 422a protrude in the right and left direction, and the protruded surface forms a right triangle. The bottom surface of the first and second departure preventing protrusions 423a and 422a has an inverted triangular shape .

The fixing groove 413b for the first detachment preventing projection and the fixing groove 415b for the second detaching protrusion part are formed so as to have the same shape as the first detaching protrusion 423a and the second detaching protrusion 422a Is recessed in the form of an inverted triangle.

When the first and second detachment prevention protrusions 423a and 422a are formed to have an inverted triangular shape, it is easy to insert the frame reinforcement 420 when the frame reinforcement 420 is fixed to the door frame 410. However, (Not shown).

The first and second escape prevention protrusions 423a and 422a protrude laterally from both sides and have a protruded surface formed in a right triangle shape and the bottom surface of the first and second escape prevention protrusions 423a and 422a has an inverted triangular shape And is rolled by a separate roller provided with a triangular-pyramidal projection having a vertical cross-sectional shape of a right-angled triangle. In the rolling process, the upper portion is cut into a straight shape, and the cut- And it is preferably formed to have a triangular pyramid shape.

The first separation preventing protrusions 423a are formed on the right side surface portion 423 and are preferably formed in a line in the upper and lower portions of the right side surface portion 423 and may be alternately arranged in a zigzag fashion . When the first separation preventing protrusion 423a is formed so as to alternate upward and downward in a zigzag fashion on the upper and lower portions of the right side wall portion 423, the fixing force of the floor frame reinforcement 420 can be doubled.

In addition, when the first separation preventing protrusions 423a are formed in a row on the upper portion and the lower portion of the right side wall portion 423, if the first separation preventing protrusions 423a are formed in a zigzag fashion up and down alternately along the longitudinal direction of the door frame 10, It is possible to increase the fixing force of the first detachment prevention protrusion 423a inserted and fixed to the door frame 410 and to prevent the first detachment protrusion 423a formed at a predetermined distance in the longitudinal direction of the door frame 410, So that the number of the first escape preventing protruding portions 423a can be reduced.

A reinforcing rib (not shown) may be formed to reinforce the strength in the longitudinal direction of the bottom portion 421.

The reinforcing ribs 21a and 22a are formed inwardly in the longitudinal direction of the bottom portion 421 to reinforce the strength in the longitudinal direction.

In order to improve the fixing force when the second insertion portion 427 of the window frame stiffener 420 is inserted and fixed in the concave groove 413a of the first projection 413 formed on the door frame 410, Preventing protrusion 426a is provided on the frame reinforcement 420 and the securing groove 413c for the third escape preventing protrusion is provided on the door frame 410. [

The third separation preventing protrusions 426a protrude inwardly from the outer side 426 and are provided at a predetermined distance in the longitudinal direction of the door frame body 410.

The third detachment protrusion fixing groove 413c is formed on the outer surface of the first protrusion 413 so as to be elongated in the longitudinal direction of the door body 410 and the third detachment protrusion 426a is inserted And is fixed.

Similarly to the first and second departure preventing protrusions 423a and 422a, the third release preventing protrusion 426a protrudes laterally from both sides. The protruding surface forms a right triangle. The bottom surface of the third release preventing protrusion 426a 422, 423, and is rolled by a separate roller provided with a triangular-pyramidal protrusion having a vertical cross-sectional shape of a right-angle triangle, and the upper portion is cut into a straight shape during the rolling process, And is formed to have an inverted triangular pyramid shape protruding outward and having an open top.

The third release preventing protrusion part fixing groove 413c is formed in the third release preventing protrusion part 426a in the same manner as the fixing groove 413b for the first release preventing protrusion part and the fixing groove 415b for the second release preventing protrusion part, So that the cross section is recessed and formed in the shape of an inverted triangle.

In order to improve the fixing force when the first insertion portion 424 of the window frame reinforcement 420 is inserted and fixed in the recessed portion 415a of the second projection 415 formed in the door frame 410, The door frame reinforcement 420 is provided with a fourth separation preventing protrusion 424b 'and a fifth separation preventing protrusion 424c'. The door frame 410 is provided with a fourth separation preventing projection fixing groove 415d ' 5 Fixing groove 415e 'for the separation preventing projection is provided.

The first insert portion 424 of the window frame stiffener 420 includes an inclined portion 424a formed to be sloped to the outside of the upper portion, an upright portion 424b that is erected upward from the inclined portion 424a, And an inner bent horizontal portion 424c formed horizontally inwardly from the upright portion 424b to form a "C" shape.

The recessed groove portion 415a of the door frame main body 410 includes an inclined recessed portion 415c inclined to the inside of the upper portion, an upright recessed portion 415d that is erected upward from the inclined recessed portion 415c, And a horizontal recessed portion 415e horizontally formed from the upright recessed portion 415d, and is formed in a "C" shape.

The fourth release preventing protrusion 424b 'protrudes outward from the upright portion 424b of the first inserting portion 424 of the door frame stiffener 420 and extends in the longitudinal direction of the door frame body 410 at a predetermined interval And are provided in plural numbers.

The fifth escape preventing protrusion 424c 'protrudes upward from the inner bending portion 424c of the first inserting portion 424 of the door frame stiffener 420 and extends in the longitudinal direction of the door main body 410 And are provided at a plurality of spaced apart intervals.

The securing groove 415d 'for the fourth detachment prevention projection part is formed inwardly inwardly in the upright recessed groove part 415d of the recessed part 415a of the door body 410 and extends in the longitudinal direction of the door body 410 And the fourth separation preventing protrusion 424b 'is inserted and fixed.

The fifth escape preventing projection fixing groove 415e 'is recessed upwardly in the horizontal recessed portion 415e of the recessed portion 415a of the door frame main body 410 and extends in the longitudinal direction of the door frame body 410 And the fifth release preventing protrusion 424c 'is inserted and fixed.

Like the first and second departure prevention protrusions 423a and 422a and the third departure prevention protrusion 426a, the fourth release prevention protrusion 424b 'and the fifth release prevention protrusion 424c' The protruding surfaces of which form a right triangle, the bottom surface of which forms an inverted triangular pyramid that faces the upper portions of the left and right side portions 422 and 423, and a triangular pyramidal protrusion having a vertical cross- And the upper portion is cut into a straight shape at the time of rolling, and the cut portion is formed so as to protrude outwards to form an inverted triangular pyramid having an opened upper portion.

The fixing groove 415d 'for the fourth detachment preventing projection part and the fixing groove 415e' for the fifth detaching projection part are fixed to the fixing groove 413b for the first detachment protrusion part and the fixing groove 415b ' Preventing projection 424b 'and the fifth departure-preventing projection 424c' are inserted in the same manner as the groove 415b and the fixing groove 413c for the third separation prevention projection, As shown in FIG.

When the width of the concave portion 410 is not wide but the width of the concave portion 410 is wide and the width of the concave portion 410 is wide, the width of the concave portion 414 is not wide, The reinforcing portion 428 is formed as shown in FIG. 8 in order to reinforce the strength of the bottom portion 421. As shown in FIG.

The bottom part 421 includes left and right upwardly bent parts 428a which are upwardly bent so as to protrude upward from the central part, and right and left upwardly bent parts 428a which are horizontally bent from the left and right upward bent parts 428a. So that a reinforcing portion 428 composed of a horizontal bent portion 428b is further formed.

If the reinforcing portion 428 formed by bending is further formed on the bottom portion 421, it is possible to improve the strength by the reinforcing portion 428 and to be usefully applied when the bottom portion 421 is wide do.

The left and right upward bent portions 428a may be formed with reinforcing ribs to reinforce the strength.

The technical idea should not be interpreted as being limited to the above-described embodiment of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, such modifications and changes are within the scope of protection of the present invention as long as it is obvious to those skilled in the art.

410: door frame 411: door installation part
412: Wood insert part 413: First protrusion
415: second projection 416: sealing material insertion groove
420: frame frame stiffener 421: bottom part
422, 423: left and right side portions 424:
425: horizontal part 426:
427:

Claims (10)

A door mounting portion 411 formed on one side of the outer side in the longitudinal direction and provided with a door,
A wooden insert 412 for inserting wood for reinforcing the door mount 411 on the rear surface of the door mount 411,
A first protrusion 413 protruding rearward from a rear surface of the other side of the door mounting part 411 and formed with a recessed groove 413a,
A space that is spaced apart from the first projection 413 and is adjacent to the wooden insertion portion 412 is formed to protrude rearward so that a space separating the first projection 413 from the first projection 413 forms a recessed portion 414, A second protrusion 415 having a recessed groove 415a formed in a lengthwise direction at an upper portion thereof,
A door frame 410 formed on the door mounting portion 411 and formed on the rear surface of the second protrusion 415 so as to be perpendicular to the second protrusion 415 and having a sealing member insertion groove 416 formed in the longitudinal direction, );
A bottom portion 421 formed in the longitudinal direction of the door frame 410 and contacting the bottom surface of the concave portion 414,
Left and right side portions 422 and 423 that are both bent upwards from the bottom portion 421 and are adjacent to both sides of the recessed portion 414,
A first inserting portion 424 formed on the left side surface portion 422 and protruding in the same shape as the recessed portion 415a of the second protrusion portion 415 and elongated in the longitudinal direction,
A horizontal portion 425 bent outward from the right side surface portion 423 and in contact with the upper surface of the first projection portion 413,
An outer portion 426 bent downward from the horizontal portion 425 and contacting the outer surface of the first protrusion 413,
A door frame stiffener 420 having a second insertion portion 427 bent inwardly at an end of the outer side portion 426 and inserted and fixed in the concave groove 413a of the first projection 413;
Wherein the reinforcing member is formed of a synthetic resin. The method according to claim 1,
The first insert portion 424 of the window frame stiffener 420 includes an inclined portion 424a protruding in a " C "shape and inclined upward from the upper portion, and an inclined portion 424b extending upward from the inclined portion 424a And an inner bent horizontal portion 424c formed horizontally inward from the upright portion 424b,
The recessed groove portion 415a of the door frame 410 includes an inclined recessed groove portion 415c which is recessed in a " C "shape and inclined toward the upper portion of the upper portion of the door frame 410, And a horizontal recessed portion (415e) formed horizontally from the upright recessed recessed portion (415d). The method according to claim 1,
The frame stiffener (420)
Preventing protrusions 423a protruding outward from the right side surface portion 423 and having a plurality of protrusions spaced at a predetermined interval in the longitudinal direction of the door frame 410,
Preventing protrusions 422a protruding outwardly from the left side surface portion 422 and provided at a predetermined distance in the longitudinal direction of the door frame 410,
The door frame 410,
The first escape preventing projection fixing groove 413b is formed on the inner surface of the first projection 413 so as to be elongated in the longitudinal direction of the door frame 410 and is inserted and fixed to the first escape preventing projection 423a Respectively,
The second escape preventing projection 422a is formed on the lower inner surface of the second recess 415a in the longitudinal direction of the door frame 410 and inserted into the second escape preventing projection 422a, And a fixing groove (415b) for fixing the door frame to the floor frame. The method of claim 3,
The first and second departure preventing protrusions 423a and 422a are formed in a substantially rectangular shape,
Wherein the protruded surface has a right triangular shape and the bottom surface has an inverted triangular pyramid shape that faces the upper portions of the left and right side portions (422, 423). 5. The method of claim 4,
The first and second escape preventing protrusions 423a and 422a protrude from both sides in the left and right direction and have protruding surfaces formed in a right triangle and have an inverted triangular pyramid shape whose bottom surface faces the upper portions of the left and right side surface portions 422 and 423 , And is rolled by a separate roller having a triangular-pyramidal protrusion having a vertical cross-sectional shape of a right-angled triangle. In the rolling process, the upper portion is cut into a straight shape and the cut- Wherein the reinforcing member is formed so as to form the reinforcing member. The method according to claim 1,
The frame stiffener (420)
Preventing protrusions 426a protruding inwardly from the outer side portion 426 and provided at a predetermined distance in the longitudinal direction of the door frame 410,
The door frame 410,
A third groove 413c is formed on the outer surface of the first protrusion 413 so as to extend in the longitudinal direction of the door frame 410 and is inserted and fixed to the third removal preventing protrusion 426a. Wherein the reinforcing member is provided on the frame member. The method according to claim 6,
The third departure preventing protrusion 426a may be formed,
The protruding surface of which forms a right triangle and whose lower surface is in the form of an inverted triangular pyramid which is directed to the upper part of the left and right side surface portions 422 and 423 and which has a triangular pyramidal protrusion having a vertical cross- Wherein the upper portion is cut out in a straight shape at the time of rolling and is formed so as to have an inverted triangular pyramid shape in which the upper portion is opened by projecting outwardly. rescue. 3. The method of claim 2,
The fourth interfacing protrusion part (424b) protruding outward from the upright part (424b) of the first inserting part (424) of the door frame stiffener (420) and spaced at a predetermined interval in the longitudinal direction of the door frame 424b '
The fifth interlocking horizontal portion 424c of the first inserting portion 424 of the frame reinforcement 420 protrudes upward and is provided with a plurality of fifth interlocking protrusions A protrusion 424c 'is provided,
Is protruded inwardly in the upright recessed groove portion 415d of the recessed groove portion 415a of the door frame 410 and is formed so as to be elongated in the longitudinal direction of the door frame 410 and the fourth escape prevention protrusion portion 424b ' Is provided with a fixing groove 415d 'for the fourth detachment projection,
Is protruded upward from the horizontal recessed portion 415e of the recessed portion 415a of the door frame 410 so as to be elongated in the longitudinal direction of the door frame 410 and inserted into the recessed protrusion portion 424c ' And a fixing groove (415e ') for a fifth detachment prevention projection part (415e') which is fixed to the fixing groove (415e '). 9. The method of claim 8,
The fourth and fifth release preventing protrusions 424b 'and 424c'
The protruding surface of which forms a right triangle and whose lower surface is in the form of an inverted triangular pyramid which is directed to the upper side of the left and right side surface portions 422 and 423 and which has a triangular pyramid- Wherein the upper portion is cut out in a straight shape at the time of rolling and is formed so as to have an inverted triangular pyramid shape in which the upper portion is opened by projecting outwardly. rescue. 10. The compound according to any one of claims 1 to 9,
The bottom part 421 includes left and right upwardly bent parts 428a which are upwardly bent so as to protrude upward from the central part, and right and left upwardly bent parts 428a which are horizontally bent from the left and right upward bent parts 428a. Further comprising a reinforcing portion (428) made up of a horizontal bent portion (428b).

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