JP2000096923A - Method and device for fitting new door frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting method for a new door in which an existing steel door frame is not required to be removed and hence, the new door frame can be fitted without any necessity for chipping works. SOLUTION: In this fitting method for a new door frame, an existing steel door frame 1 attached to a building frame body 2 is left without removing it and the new door frame 7 is fitted thereto by using the existing door frame 1 as a fitting base. A plurality of fitting pieces 6 which can be adjustably transferred to the indoor and outdoor sides and fixed at the adjusted positions are provided in the existing door frame 1, and the new door frame 7 is butted against these fitting pieces 6 and fixed thereto while using these fitting pieces 6 as fitting references.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for attaching a new door frame to a building frame when replacing a front door or the like of a concrete building with a new one.

[0002]

2. Description of the Related Art When a new door frame is installed in replacing a door, conventionally, a method of removing an existing steel door frame attached to a building frame has been adopted. In order to remove the concrete wall around the door frame to remove the so-called filing work, this filing work takes a lot of time and effort, the problem that the construction cost will rise,
There were also problems such as noise and dust generation due to the filing operation.

The present invention has been made in order to solve the above-mentioned problems, and there is no need to remove an existing steel door frame, and therefore, a new door frame can be installed without any filing work. An object of the present invention is to provide a new door mounting method that can be performed, and a mounting device thereof.

[0004]

The invention according to claim 1 is
An existing steel door frame 1 attached to the building frame 2 is left without being removed, and the existing door frame 1 is used as a mounting base, and a new door frame 7 is attached to the door frame. And the existing door frame 1
A plurality of mounting pieces 6 that can be moved and adjusted in the indoor and outdoor directions, and that can be fixed at the positions where the movement has been adjusted, and a new door frame 7 is applied to and fixed to the mounting pieces 6 based on the mounting pieces 6. It is characterized by the following.

[0005] The present invention according to claim 2 is that the existing steel door frame 1 attached to the building frame 2 is left without being removed, and the existing door frame 1 is used as a mounting base and a new door frame is provided. 7 is a new door frame mounting device to which a plurality of mounting pieces 6 that can be moved and adjusted in the indoor and outdoor directions and that can be fixed at the moved and adjusted positions are mounted on the existing door frame 1; It is characterized in that a new door frame 7 is applied and fixed to the mounting piece 6 with the mounting piece 6 as a mounting reference.

According to a third aspect of the present invention, there is provided the new door frame mounting apparatus according to the second aspect, wherein the new door frame 7 includes an outdoor door frame portion 7a mounted on the outdoor side and an indoor decorative frame mounted on the indoor side. It is characterized in that it is formed separately from the portion 7b.

According to a fourth aspect of the present invention, in the new door frame mounting apparatus according to the second or third aspect, each of the mounting pieces 6 has a pair of engagement support portions 10 and 10 protruding on the inner surface side. A first part 6a arranged on the inner peripheral surface of the existing door frame 1 and fixed to the existing door frame 1 by screws b, and crossing the first part 6a by the pair of engagement supporting portions 10, 10. And a second part 6b which is supported so as to be slidable in the indoor and outdoor directions in a state of being in surface contact with the existing door frame 1 and which is screwed to the existing door frame 1.

According to a fifth aspect of the present invention, in the new door frame mounting apparatus according to the fourth aspect, both the indoor and outdoor ends of the second piece 6b are provided outwardly at the indoor and outdoor ends of the new door frame 7, respectively. Outward flange portions 13 and 14 to which the projecting surface edges 11 and 12 are respectively applied are provided.

[0009]

1 (A) is a front view of a new door frame 7 and a door 8 attached and constructed according to the method of the present invention, as viewed from the outdoor side, and FIG. 1 (B) is a front view as viewed from the indoor side. 2 and 3 are a longitudinal sectional view and a transverse sectional view of a door frame mounting portion, and FIG. 4 is an explanatory view showing a construction method according to the present invention. In these figures, reference numeral 1 denotes an existing steel door frame integrally attached to a reinforced concrete building frame 2, which remains as an attachment base. The existing door frame 1 is composed of upper and lower horizontal frames 3 and 4 and left and right vertical frames 5 and 5, and the inner peripheral portion on the indoor side protrudes inward to form a convex step portion 1a.

The existing door frame 1 has a mounting piece 6 which can be moved and adjusted in the indoor and outdoor directions and which can be fixed at the position where the movement has been adjusted.
Attached along the circumferential direction, that is, at required intervals along the longitudinal direction of each of the upper, lower, left and right frames 3, 4, and 5 of the door frame 1, and these mounting pieces 6 , A new door frame 7 is applied and fixed. As shown in FIG. 4, the new door frame 7 includes an outdoor door frame portion 7 a attached to the exterior of the existing door frame 1 and an interior decorative frame attached to the interior of the existing door frame 1. 7b is formed separately. 8 is
This is a new door that is pivotally attached to the outdoor door frame portion 7a of the new door frame 7 by a hinge 9.

As shown in FIG. 5, each mounting piece 6 is composed of a combination of a first piece 6a and a second piece 6b formed of a steel plate, and the first piece 6a has an inner surface. It has a pair of engaging support portions 10, 10 protruding on the side, and is disposed on the inner peripheral surface of the existing door frame 1 on the outdoor side, and is screwed to the existing door frame 1. . The second part 6b is slidably supported in the indoor and outdoor directions in a state where the second part 6b is in surface contact with the first part 6a in an intersecting manner by the two engaging support parts 10, 10 of the first part 6a. Screw b
It has been stopped.

The engagement supporting portions 10, 10 of the first piece 6a are
Each was formed into a L-shaped cross section by cutting and raising a steel plate. Screw holes a are provided at both ends of the first piece 6a. At both ends of the interior and exterior of the second piece 6b, facing edges 11 and 12 projecting outward from the interior and exterior ends of the new door frame 7, respectively, are applied to the outside, and the screws b are fixed. Flanges 13 and 14 are protruded from each other, and the middle part of the second piece 6b in the indoor / outdoor direction corresponds to the convex step part 1a formed on the indoor-side inner peripheral frame part of the existing door frame 1. A step 15 is formed. Screw holes a are provided in required portions of the second part 6b on the indoor side, the inward flange portions 13, 14 and the step portion 15, respectively.

Next, the method of mounting the new door frame 7 will be described in detail with reference to FIGS. 2 to 4. First, the upper and lower horizontal frames 3 and 4 and the left and right vertical frames 5 and 5 of the existing door frame 1 will be described. Attachment pieces 6 are attached at required intervals in the longitudinal direction. When the new door frame 7 is mounted, the mounting piece 6 serves as a mounting reference for mainly determining the mounting position of the new door frame 7 in the indoor / outdoor direction. A screw b is screwed into a screw hole (not shown) on the existing door frame 1 side from the screw hole a to fix the screw to the outside inner peripheral surface. The direction can be slid freely.

When the first part 6a is attached, if the building is old and the horizontal and vertical frames 3 and 4 and the left and right vertical frames 5 and 5 of the existing door frame 1 are out of alignment. ,
If an appropriate spacer (not shown) is interposed between the first part 6a of any of the mounting pieces 6 and the inner peripheral surface of the existing door frame 1, the horizontality and the vertical The degree can be corrected.

As described above, the first part 6 of each mounting piece 6
a is fixed to the inner peripheral surface of the exterior door 1 of the existing door frame 1, the second part 6 b of each mounting piece 6 is appropriately slid in the interior and exterior directions with respect to the first part 6 a to the existing door frame 1. Movement and adjustment are performed in accordance with the outdoor-side end mounting position and the indoor-side end mounting position of the new door frame 7 to be mounted. Screw b is screwed into the screw hole and fixed. The state in which each mounting piece 6 is mounted on the existing door frame 1 in this manner is shown in the center of FIG.

With the plurality of mounting pieces 6 attached to the existing door frame 1 as described above, a new door frame 7 is applied to these mounting pieces 6 and fixed. As shown in FIG. 4, the new door frame 7 is formed separately from the outdoor door frame 7a and the indoor decorative frame 7b, and the outdoor door frame 7a is provided on the outdoor side of the building frame 2. From the interior of the existing door frame 1, and the interior decorative frame 7b is fitted into the exterior of the existing door frame 1 from the indoor side.

When the new door frame 7 is fitted, as shown in FIGS. 2 and 3, between the outdoor door frame portion 7a and the existing door frame 1, and between the indoor decorative frame portion 7b and the existing door frame. 1, a heat insulating material 16 made of, for example, urethane foam or the like is loaded. Then, as shown in FIGS. 2 and 3, the indoor side end surface of the outdoor side door frame portion 7 a is applied to the step portion 15 of the second part 6 b of each mounting piece 6, and the surface edge of the outdoor side end portion. 11 is applied to the outward flange portion 13 of the second part 6b of each mounting piece 6 and fixed with screws b as shown in the figure.

After the outdoor door frame portion 7a and the indoor decorative frame portion 7b are screwed and fixed to the mounting pieces 6 as described above, the outdoor end portion of the outdoor door frame portion 7a and the building frame 2 are connected. By filling the gap and the gap between the interior-side decorative frame portion 7b and the interior-side end with the sealing material 17, respectively, the installation of the new door frame 7 is completed. A new door 8 is attached to the new door frame 7 thus attached by the hinge 9.

According to the method for installing the new door frame 7 as described above, the existing steel door frame 1 attached to the building frame 2 is not removed, but is left as it is, and the existing door frame 1 is left. A plurality of mounting pieces 6 that can be moved and adjusted in the indoor and outdoor directions and that can be fixed at the moved and adjusted positions are mounted on the frame 1, and a new door frame 7 is applied to these mounting pieces 6 based on the mounting pieces 6. Since it is attached and fixed, there is no need to remove the existing door frame 1 by performing a filing operation on the building frame 2 as in the conventional method, and thus various problems associated with the filing operation are eliminated at once.
While the installation of the new door frame 7 can be performed quickly and inexpensively without noise, the existing door frame 1
The distance between the inner peripheral surface of the new door frame 7 and the outer peripheral surface of the new door frame 7 can be minimized, for example, to within about 1 cm, and the new door frame 7 is not unnecessarily made smaller than the existing door frame 1.

In particular, in the above-described construction method, the fixing of each mounting piece 6 to the existing door frame 1 and the fixing of the new door frame 7 to each mounting piece 6 are all performed by screws b without welding. Therefore, there is no need to bring equipment such as a welding device to the site, the work itself can be performed easily, and the working environment is improved because no gas or smoke is generated. When the mounting pieces 6 are fixed to the existing door frame 1 with screws b and the new door frames 7 are fixed to the mounting pieces 6 with screws b, screw holes a are formed in the existing door frame 1 and the mounting pieces 6 one by one. Instead, the screws may be directly screwed into required positions of the existing door frame 1 and each mounting piece 6 by a screw driving machine.

Further, since the new door frame 7 is formed separately from the outdoor door frame 7a attached to the outdoor and the indoor decorative frame 7b attached to the indoor,
The outdoor door frame portion 7a is fitted from the exterior of the building frame 2 to the exterior of the existing door frame 1, and the indoor decorative frame 7b is fitted from the interior of the building frame 2 to the interior of the existing door frame 1. , The outdoor side door frame portion 7a and the indoor side decorative frame portion 7
b can be individually mounted, so that work becomes very easy.

Each of the mounting pieces 6 has a pair of engaging support portions 10 and 10 protruding from the inner surface side to face each other.
The first piece 6a is disposed on the inner peripheral surface of the first door frame 1 and screwed to the existing door frame 1, and the first engagement portion 10 is used to form the first portion 6a.
The second piece 6b is supported so as to be slidable in the indoor and outside directions in a state of being in surface contact with the piece 6a in an intersecting manner, and includes a second piece 6b fixed to the existing door frame 1 with a screw b. By first fixing the first piece 6a to the existing door frame 1 with the screw b, the second piece 6b can be moved in the indoor / outdoor direction relative to the first piece 6a. In addition, movement adjustment work becomes easy.

In each mounting piece 6, the second piece 6
Outward flange portions 13 and 14 are provided at both indoor and outdoor ends of "b", to which outwardly protruding surface edges 11 and 12 are respectively applied to the indoor and outdoor both ends of the new door frame 7. Thus, when the new door frame 7 is mounted, the edge portions 11 and 12 of the new door frame 7 are applied to the outward flange portions 13 and 14 of the mounting pieces 6 so that the new door frame 7 is attached to the mounting pieces 6. Positioning becomes easy, and installation of a new door frame 7 can be performed quickly.

[0024]

According to the first and second aspects of the present invention, there is no need to remove the existing door frame by performing the filing work on the building frame unlike the conventional method, and therefore, there are various problems associated with the filing work. At a glance, the installation of a new door frame can be performed quickly and inexpensively, and the distance between the inner peripheral surface of the existing door frame and the outer peripheral surface of the new door frame can be reduced as much as possible. The frame is not unnecessarily made smaller than the existing door frame.

According to the third aspect of the present invention, since the new door frame is formed separately from the outdoor door frame and the indoor decorative frame, the outdoor door frame is connected to the exterior of the building frame. From the interior side of the existing door frame and the interior facing frame from the interior side of the building frame into the interior side of the existing door frame, and these exterior door frame and interior facing frame are individually It can be installed, and the work of installing a new door frame is very easy.

According to the fourth aspect of the present invention, each mounting piece has a pair of engagement support portions projecting from the inner surface side to face each other,
A first part arranged on the inner peripheral surface of the existing door frame and screwed to the existing door frame, and slidable indoors and outdoors in a state of intersecting surface contact with the first part by both engagement supporting portions; The second part is supported and screwed to the existing door frame. Therefore, when attaching each mounting piece, the first part is first screwed to the existing door frame to thereby secure the first part. Since the second piece can be moved in the indoor and outdoor directions as required with respect to the piece, the movement adjustment work becomes easy.

According to the fifth aspect of the present invention, the outside edge of the new door frame is applied to the interior and exterior ends of the new door frame at the interior and exterior ends. Since the orientation flanges are protruding, when the new door frame is installed, the edge of the new door frame is applied to the outward flange of each mounting piece, making it easy to position the new door frame with respect to the mounting piece. Thus, installation of a new door frame can be performed quickly.

[Brief description of the drawings]

FIG. 1A is a front view of a new door frame and a door mounted and constructed by the method of the present invention, as viewed from the outside of the room, and FIG.
Is a front view as seen from the indoor side.

FIG. 2 is an enlarged detailed vertical sectional view of a door frame mounting portion.

FIG. 3 is an enlarged detailed cross-sectional view of a door frame mounting portion.

FIG. 4 is an explanatory view showing a construction method according to the present invention.

FIG. 5 is an enlarged perspective view showing a mounting piece.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Existing door frame 2 Building frame 3, 4 Upper and lower horizontal frame of existing door frame 5 Left and right vertical frame of existing door frame 6 Mounting piece 6a First piece of mounting piece 6b Second piece of mounting piece 7 New door frame 7a Room Outer door frame portion 7b Interior side decorative frame portion 8 New door 10 Engagement support portion of second piece in mounting piece 11,12 Surface edge portion of new door frame 13,14 Outward flange of second piece in mounting piece Department

Claims (5)

[Claims] 1. A method of attaching a new door frame, wherein an existing steel door frame attached to a building frame is left without being removed, and a new door frame is attached to the existing door frame as a mounting base. A plurality of mounting pieces that can be moved and adjusted in the indoor and outdoor directions and that can be fixed at the moved and adjusted positions are provided on the existing door frame, and a new door frame is applied to the mounting piece with the mounting piece as a mounting reference. How to attach a new door frame that is attached and fixed. An existing steel door frame attached to a building frame is left without being removed, and the existing door frame is used as a mounting base to which a new door frame is attached. A mounting device, wherein a plurality of mounting pieces that can be moved and adjusted in the indoor and outdoor directions and that can be fixed at the moved and adjusted positions are mounted on the existing door frame, and a new door is provided on the mounting piece based on the mounting pieces. A new door frame mounting device with a frame applied and fixed. 3. The new door frame according to claim 2, wherein the new door frame is formed separately from an outdoor door frame mounted on the outdoor side and an indoor decorative frame mounted on the indoor side. Mounting device. 4. Each of the mounting pieces has a pair of engaging support portions protruding from the inner surface thereof and is disposed on the inner peripheral surface of the existing door frame and is screwed to the existing door frame. A second piece which is supported by the pair of engagement support portions so as to be slidable in the indoor and outdoor directions while being in surface contact with the first piece in an intersecting manner, and which is screwed to the existing door frame. The new door frame mounting device according to claim 2. 5. An outwardly-facing flange portion is provided at each of the indoor and outdoor ends of the second piece, the surface flanges projecting outwardly from the indoor and outdoor both ends of the new door frame, respectively. 5. The new door frame mounting device of claim 4, wherein