JP3262942B2 - How to attach a metal door frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of attaching a metal door frame to a door opening formed in a wall such as a lightweight steel partition in a reinforced concrete structure or a steel structure building.

[0002]

2. Description of the Related Art A door frame of this type is connected to left and right side frame members attached to left and right side portions of a door opening and upper ends of both side frame members and is attached to an upper side portion of the door opening portion. And a member. Conventionally, when attaching a metal door frame to a door opening, a steel long frame material is cut at a factory to form side frame members and upper frame members each having a predetermined length. At the construction site, a skilled worker, called a sash installation craftsman, uses tools such as a leveler, plumb bob, wedge, etc., together with the verticality and horizontality of the side frame member and the upper frame member with respect to the floor surface, and While checking the degree of parallelism between the members and the perpendicularity between the side frame member and the upper frame portion, connect the ends of the side frame member and the upper frame member to each other, and attach these members to the door opening. , Each was performed by welding.

[0003]

According to the conventional mounting method as described above, the right angle and the horizontality of the door frame are obtained,
Welding requires a high level of skill and a wealth of experience, making it impossible for a layman to rely on, and must rely solely on skilled workers. In other words, construction costs were rising.

In view of the above circumstances, the present invention makes it possible to easily and accurately attach a metal door frame to a door opening formed in a wall of a partition or the like, and to greatly shorten the construction period. It is an object of the present invention to provide a mounting method that can be shortened.

[0005]

A first aspect of the present invention is a method of attaching a metal door frame 1 to a door opening 11 formed in a wall 12 such as a partition. The main body 2 is integrally formed in a downward U-shape when viewed from the front,
The front side of the U-shaped frame body 2 also serves as a reference piece around the front side.
The mounting piece 3 is integrally formed, and is provided behind the frame body 2.
After being able to rotate back and forth at appropriate intervals in the longitudinal direction around the surface side
The surface side mounting piece 4 is pivotally mounted, and this U-shaped frame body 2 is
Insert into the door opening 11 from the front side,
Before the reference piece, which is integrally formed around the front side of the frame body 2
The surface side mounting piece 3 is fixed to the wall body 12 and the frame body 2
The rear side mounting piece 4 pivotally attached to the rear side periphery is
The rear side mounting piece 4 is set upright from the
It is designed to be adhered to .

[0006]

According to a second aspect of the present invention, the gold according to the first aspect is provided.
In the method of attaching a metal door frame, right angle ruler frames 22 and 23 for regulating the right angle between the upper frame member 1b and the right and left side frame members 1a of the U-shaped frame body 2 are attached to the door opening 11. Before insertion, the U-shaped frame main body 2 is previously inserted into the U-shaped frame main body 2, the U-shaped frame main body 2 is inserted into the door opening 11, and the mounting pieces 3 and 4 are fixed to the wall body 12. This square ruler frame 2
2, 23 are detached.

[0008]

According to the mounting method of the first aspect of the present invention, since the frame body 2 of the door frame 1 is integrally formed in a downward U-shape in front view, the left and right frame members 1a are parallel to each other. Each side frame member 1a is perpendicular to the upper frame member 1b. Then, the U-shaped frame main body 2 is connected to the door opening 1.
1, the U-shaped frame main body 2 is positioned at a predetermined position in the front-rear direction with respect to the door opening 11, and is fixed to the floor. It is positioned perpendicular to the surface F, and attached and fixed to the wall body 12 in such a state.

Further, according to the mounting method of the present invention , the U-shaped frame main body 2 of the door frame 1 is provided with the rotatable rear-side mounting piece 4 provided around the rear surface side so as to fall down. 2 can be directly inserted into the door opening 11 from the rear side. Thus, the U-shaped frame main body 2 is formed by the front side mounting piece 3 which also serves as a reference piece provided around the front side of the frame main body 2.
The front side of the frame body 2 is fixed to the wall 12 in a state where it is positioned at a predetermined position in the front-rear direction with respect to the door opening 11 and perpendicular to the floor surface F.
After the insertion of the frame main body 2 into the frame 1, the front side of the frame main body 2 is fixed to the wall body 12 by fixing the rear side mounting piece 4 to the wall body 12 upright. Therefore, the U-shaped frame main body 2 is securely and stably fixed to the door opening 11 while being positioned at the predetermined position.

According to the mounting method according to the second aspect, the U-shaped frame main body 2 uses the right angle ruler frames 22 and 23 to parallelize the side frame members 1a with each other and to adjust the straightness between the side frame members 1a and the upper frame member 1b. The angle is reliably maintained. Therefore, the door opening 11
Even when the side frame member 1a of the U-shaped frame main body 2 swings during the work of attaching the door frame 1 to the door frame 1, the parallelism and the right angle of the U-shaped frame main body 2 are not deviated.

[0011]

Embodiments will be described with reference to the drawings.
1A is a front view of a metal door frame 1 according to the present invention as viewed from the front side, and FIG. 1B is a front view as viewed from the rear side. A U-shaped frame main body 2 is integrally formed in the shape of a downwardly-facing U-shaped frame formed of the side frame members 1a, 1a and the upper frame member 1b, and a reference is provided around the front side of the U-shaped frame main body 2. A single-sided front-side mounting piece 3 is integrally formed, and a plurality of rear-side mounting pieces 4 rotatable back and forth are pivotally mounted at appropriate intervals in the longitudinal direction around the rear side.

The structure of the door frame 1 will be described in more detail. The U-shaped frame main body 2 of the door frame 1 is manufactured by pressing a steel plate at a factory, for example, to form a cross section of each of the frame members 1a and 1b. Has a substantially outwardly-facing U-shape as shown in FIGS. 5 and 6, and the entire frame body 2 is shown in FIG.
(B) is formed in a downward U-shape as viewed from the front, and a front-side mounting piece 3 also serving as a reference piece is integrally formed over the entire front-side outer peripheral portion of the U-shaped frame body 2. ing.
In the door frame 1, both side frame members 1a are parallel to each other, and each side frame member 1a is disposed at right angles to the upper frame member 1b. An inwardly protruding ridge portion 5 is integrally formed on the inner peripheral surface of the U-shaped frame main body 2 at the center in the front-rear direction, and a door fitting portion 6 is provided on the front side of the ridge portion 5. Is formed.

As shown in FIGS. 5 and 6, the rear mounting piece 4 is pivotally attached to a U-shaped frame portion 7 integrally formed on the rear surface of the U-shaped frame main body 2. As shown in FIG. Each rear side mounting piece 4 is rotatable about a pivot 8 and forms a hinge together with the pivot 8 and another rotating mounting piece 9. It is fixed to a U-shaped member 10 for reinforcement fitted and fixed in the U-shaped frame portion 7. Thus, each rear side mounting piece 4 is provided as shown by the phantom line in FIGS. 5 and 6.
It is rotatable between a lying position in which it is folded so as to abut on the outer peripheral surface of the U-shaped frame portion 7 and falls, and an upright position as shown by a solid line in FIG. Has become.

The door opening 11 for mounting the door frame 1 is
As shown in FIG. 3 to FIG.
The partition 12 (wall) made of a lightweight steel frame composed of a and 12b. The vertical channel section 12a is erected perpendicular to the floor F, and the horizontal channel section 12b
Are provided parallel to the floor surface F and at right angles to the vertical channel steel 12a. The height and width of the door opening 11 are slightly larger than the height and width of the U-shaped frame main body 2 of the door frame 1, respectively.

Next, a method of mounting the above-described door frame 1 will be described with reference to FIG.
Referring to FIG. 6, first, the rear mounting pieces 4 pivotally mounted on the periphery of the rear side of the U-shaped frame main body 2 are turned to the lying positions as shown by phantom lines in FIGS. In this state, the U-shaped frame main body 2 is brought into contact with the rear outer peripheral surface of the U-shaped frame main body 2 and the U-shaped frame main body 2 is placed on the door opening 11 from the front side (for example, the left side in FIG. 6). Insert along face F. At this time, since each rear side mounting piece 4 is tilted to the down position, the rear side of the U-shaped frame main body 2 is inserted into the opening 11 with a required gap, but the front side is positioned around the periphery. The protruding front side mounting piece 3 also serving as a reference piece has an opening 1.
1 will hit the front.

Then, the U-shaped frame main body 2 is inserted into the door opening 11 from the front side along the floor surface F, and the reference piece / front front side mounting piece 3 of the frame main body 2 is shown in FIG. The front of the partition 12 (vertical and horizontal channel steel 12a, 12
b), the door frame 1 is positioned at a predetermined position in the front-rear direction with respect to the door opening 11 and is positioned vertically with respect to the floor surface F. Thereafter, the front side mounting piece 3 also serving as a reference piece is fixed to the partition 12 with screws 13, and each rear side mounting piece 4 is attached to the partition 12 as shown in FIG.
6 is erected as shown by the solid line in FIG.
4 secures. In this case, a screw insertion hole for a screw 13 is provided in the reference piece / front side mounting piece 3 at a required interval in the longitudinal direction, and a screw insertion hole for a screw 14 is provided in each rear side mounting piece 4, respectively. Further, screw holes are provided in the front and rear surfaces of the partition 12 at positions corresponding to the screw insertion holes of the front side mounting piece 3 and the rear side mounting piece 4, respectively.
All that is necessary is to screw the 3 and 14 as they are.

After the door frame 1 is attached to the door opening 11 as described above, the door frame 1 is positioned at a position on the floor F opposite to the upper frame member 1b of the U-shaped frame main body 2 as shown in the sectional view of FIG. A shoe slide 15 as shown is attached, and a door 16 is attached to the door fitting portion 6 of the door frame 1 by a hinge 17 (see FIG. 3). In this case, since the frame body 2 of the door frame 1 is formed in a U-shape in advance, and both side frame members 1a are parallel to each other and form a right angle to the upper frame member 1b, the door 16 is Frame 1
It can be mounted accurately while maintaining a predetermined gap with the inner peripheral surface.

As shown in FIG. 6, the shoe slide 15 has a shoe slide body 18 made of an extruded aluminum material whose upper and lower surfaces are uneven, and a stainless steel downwardly-covered U-shaped cover 19 fitted on the body. When the shoe slide body 18 is attached to the floor surface F, an adhesive is applied to the lower surface side of the shoe slide body 18 and applied to a predetermined position on the floor surface F. After being fixed on the upper side, the U-shaped cover 19 may be fitted over the shoe sliding body 18.

After the door frame 1 is attached to the door opening 11, a decorative plate 21 is attached to both front and rear surfaces of the partition 12 as shown in FIGS. The front side mounting piece 3 and the rear side mounting piece 4 which are also used as reference pieces are concealed by the decorative plate 21 so that the appearance is not impaired.

In the mounting method of the embodiment described above, the U-shaped frame body 2 is inserted into the door opening 11 from the front side, and the reference piece / front side mounting piece 3 of the frame body 2 is placed on the front surface of the partition 12. Because it is abutted and fixed, this front
The side mounting piece 3 also plays the role of a reference piece, and the mounting piece 3 is mounted.
Frame body 2 with respect to door opening 11 based on position
And the vertical positioning of the frame body 2 with respect to the floor F can be performed simultaneously,
This front side mounting piece 3 can be easily fixed to the partition 12 as it is. Also, since the rear-side mounting piece 4 can be tilted in advance so as to abut against the rear-side outer peripheral surface of the frame main body 2 prior to the insertion of the frame main body 2 into the door opening 11, the insertion of the frame main body 2 can be performed. Thereafter, the rear-side mounting piece 4 can be quickly and easily fixed to the partition 12 by standing upright. Therefore, the door frame 1 can be easily, accurately and quickly mounted.

[0021]

In the above embodiment, when the door frame 1 is mounted, the door frame 1 is inserted into the door opening 11 in the state shown in FIGS. 1 (A) and 1 (B). As shown in FIG. 2, the upper frame member 1b of the U-shaped frame body 2
For example, two types of right angle ruler frames 22 and 23 for restricting the right angle between the right and left side frame members 1a are attached to the U-shaped frame main body 2 in advance before insertion into the door opening 11 with screws. The U-shaped frame body 2 was inserted into the opening 11 for the door, and only the front mounting piece 3 and the rear mounting piece 4 serving as the reference piece and the front mounting piece 3 serving as the reference piece were fixed to the partition 12. Thereafter, the right angle ruler frames 22 and 23 may be removed.

Of course, the frame main body 2 of the door frame 1 is formed integrally in advance in a downwardly-facing U-shaped frame composed of left and right frame members 1a, 1a and an upper frame member 1b. The frame members 1a are parallel to each other and each side frame member 1a is at right angles to the upper frame member 1b, and if this is directly attached to the door opening 11, there is no problem. It is conceivable that the side frame member 1a of the U-shaped frame main body 2 swings during the work of attaching the door frame 1 to the door frame 11, and the parallelism and the right angle of the U-shaped frame main body 2 are slightly deviated. . Therefore, in such a case, the right angle ruler frames 22 and 23 for restricting the right angle between the upper frame member 1b and the right and left side frame members 1a of the U-shaped frame body 2 are attached to the U-shaped frame body 2. Thus, the above-described deviation of the parallelism and the right angle can be prevented, and the frame body 2 can be held in a regular U-shape. Note that the above two right angle ruler frames 22, 23
May be used.

[0024]

According to the mounting method according to the first aspect of the present invention, the frame body previously formed integrally in a downward U-shape when viewed from the front is inserted into the opening for the door, and the front side mounting piece also serves as the reference piece. By simply fixing the door frame to the wall, the door frame can be accurately mounted at the predetermined position of the door opening, so that anyone can easily and easily perform the installation work without relying on skilled personnel as in the past. The construction period can be greatly reduced, and the performance of the door frame can be sufficiently maintained.

Further, according to the mounting method of the present invention , the U-shaped frame main body can be easily inserted into the door opening from the rear side of the frame main body as it is, and the reference piece also serves as a reference piece around the front side of the frame main body. By the front side mounting piece and the rear side mounting piece around the rear side of the frame main body, the frame main body can be quickly and stably mounted to the door opening, and the door frame mounting work can be further simplified. it can.

Further, according to the mounting method of the second aspect ,
Even if the side frame member of the U-shaped frame body swings during the work of attaching the door frame to the door opening, there is no possibility that the parallelism and the right angle of the U-shaped frame body will be out of order, and therefore, The door frame can be more accurately attached to the opening.

[Brief description of the drawings]

FIG. 1A is a front view of a door frame according to the present invention as viewed from a front side, and FIG. 1B is a front view of the door frame as viewed from a rear side.

FIG. 2 is a front view of the door frame to which the right-angle ruler frame is attached, as viewed from the front side.

FIG. 3 is a front view of the door frame attached to the door opening as viewed from the front side.

FIG. 4 is a front view of the door frame attached to the door opening as viewed from the rear side.

FIG. 5 is an enlarged sectional view taken along line AA of FIG. 3;

FIG. 6 is an enlarged sectional view taken along line BB of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door frame 1a Side frame member 1b Upper frame member 2 U-shaped frame main body 3 Mounting piece also serving as a reference piece 4 Rear side mounting piece 11 Door opening 12 Partition (wall) 13 Screw 14 Screw 15 Shoe sliding 22 Right angle ruler Frame 23 Right angle ruler frame

Claims (2)

(57) [Claims] 1. A method of attaching a metal door frame to a door opening formed in a wall such as a partition, wherein a main body of the door frame is previously formed integrally in a downward U-shape in a front view,
Around the front side of this U-shaped frame body, a front side
The attachment piece is integrally formed, and the rear side periphery of the frame main body is formed.
A rear chamfer that can rotate back and forth at appropriate intervals in the longitudinal direction
An attachment is pivotally mounted, and the U-shaped frame body is opened with the door open.
Insert from the front side into the mouth, and the front of this U-shaped frame body
The front side mounting piece that also serves as a reference piece integrally formed around the side
Fixed to the wall and pivoted around the rear side of the frame body
With the rear mounting piece upright from its lying down position,
A method of mounting a metal door frame in which a side mounting piece is fixed to the wall . 2. A right angle ruler frame for regulating a right angle between an upper frame portion of the U-shaped frame main body and right and left side frame portions is inserted into the U-shaped frame main body before being inserted into the door opening. 2. The metal door according to claim 1, wherein the U-shaped frame body is inserted into the opening for the door, the mounting piece is fixed to the wall body, and then the right-angled ruler frame is removed. How to attach the frame.