JP2001323734A - Renovated structure for door frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply install a door frame to be newly installed without distortion even in the case where an existing door frame for renovation has been installed in a distorted manner. SOLUTION: A metal bed material 14 is vertically fixed on the vertical frame 1 of the existing door frame B and horizontally fixed on the upper frame thereof. The material 14 is regarded as the basis for the installation, and the vertical frame 1 and the upper frame of the door frame A to be newly installed are fastened to the material 14 by screws 21 in order to enable the installation of the door frame A absorbing the distortion of the door frame B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retrofitting structure (also referred to as an apparatus) for retrofitting existing fittings, and more particularly to a doorframe refurbishment structure for retrofitting a doorframe of an existing door.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open No. Hei 10-252353 discloses a remodeling structure of a door frame of this type. According to this, the so-called cover method used for refurbishment of fittings, especially for refurbishment of sash frames, is used for refurbishment of door frames. The door frame is formed using a pair of door frames, an outdoor door frame and an indoor door frame, which are separated from each other. The other side door frame inserted from the indoor side is screwed at the overlapping portion of the inner opening surface which overlaps with the anchored outdoor door frame. The new door frame is installed by fixing the indoor and outdoor door frames.

[0003]

In this case, the adoption of the cover method has led to the problems seen in the so-called shaving method and drawing method, namely, that the work is large-scale, and that repair of concrete involves wet work. Problems such as generation of noise and dust can be suppressed as much as possible, and the remodeling of the door frame can be performed with a comparatively simple construction, thereby shortening the construction period.

However, in this case, the installation of the new door frame is performed based on the existing door frame. Therefore, if the existing door frame, particularly the vertical frame, is secured vertically and correctly installed, the above-described operation is performed. A new door frame can be installed by installing anchors on the existing door frame. However, about 30 to 40% of the vertical frame is slightly inclined left and right, and the existing door frame is distorted. It is a fact that it is installed. Therefore, if an anchor is installed on this and a new door frame is installed, the new door frame will also be distorted due to the distortion of the installation standard, and the renovation quality will not be able to be secured. At the same time, it cannot be inserted into the opening of the existing door frame, making it impossible to install the door frame itself. In particular, door frame renovation is required to be carried out in a state where people are resident, for example, as in an apartment. However, if construction is not possible, doors cannot be closed, including at night, causing security problems. The result is that the door cannot be actually refurbished.

[0005] In this case, by installing the new door frame including the lower frame via an anchor, the problem caused by the cover method in which the lower frame position is higher than that of the existing door frame is solved. The remodeling quality remains unreliable, and people are likely to stumble when entering or leaving.

Also, in this case, the fixing screws are exposed at the front of the door frame of the door, which can be called the entrance face, in order to fix the new door frame, particularly the outdoor door frame, on the outdoor surface. The above problems remain.

Further, in this case, in order to fix the new door frame by screws, a frequently opened / closed door is mounted.
As a new door frame that receives the impact of opening and closing, there is a possibility that looseness of screws may cause rattling, and the stability of the installation over a long period of time is likely to be impaired, which also remains a problem in renovation quality.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to solve the problem by first providing a new door even when the vertical frame is inclined and the existing door frame is distorted. By making it possible to install the frames as easily and reliably as possible without distortion, it is possible to eliminate the situation where construction is impossible and to renovate the living conditions of people such as condominiums.
The object of the present invention is to provide a door frame refurbishment structure capable of ensuring the quality of refurbishment by a good fit. Secondly, in addition to the above, the rise of the lower frame position is suppressed as much as possible, and the stumbling of people is eliminated. Third, in addition to the above, in addition to the above, the fixing screws were not exposed at the front, the appearance was made as good as possible, and the refurbishment quality was further secured. Fourth, in addition to the above,
The purpose is to ensure that the stability of the new door frame over a long period can be sufficiently ensured and that the stability can be ensured as simply as possible.

[0009]

SUMMARY OF THE INVENTION In accordance with the first object, the present invention provides a method of installing a new door frame on an existing door frame, and installing the new door frame on a vertical frame of the existing door frame. When the vertical frame is inclined and the existing door frame is distorted by using the metal base material for vertical extension over the length of the vertical frame in the new door frame to fix the new door frame, In addition, the new door frame is fixed to the vertical frame, assuming that the vertical frame is inclined and the vertical standard is independently established regardless of the inclination. In addition, a metal base material for leveling is used for the upper frame of the existing door frame so that the upper frame of the new door frame is set similarly, so that the installation of the new door frame can be performed more reliably. According to the second issue, the lower frame of the new door frame is The existing door with the inner and outer opening surfaces arranged stepwise through an intermediate step so that the height rise is suppressed to the thickness equivalent to the thickness of the new door frame by being fixed directly to the frame. In the door frame retrofitting structure in which a new door frame is installed so as to cover the frame, the new door frame is a rectangular integrated frame integrally formed in a shape along the existing door frame excluding at least the interior-facing surface. The vertical and horizontal metal base materials are provided on the vertical frame and upper frame of the door frame, respectively, over the entire length in the longitudinal direction, and the new door frame is inserted into the opening of the existing door frame from the front and inserted. A door characterized by installing a new door frame by fixing the vertical frame and the upper frame of the door frame directly to the lower frame of the existing door frame via the metal base material and fixing the lower frame to the lower frame of the existing door frame. The frame has a refurbished structure.

[0010] The present invention according to claim 2 is to provide a new door frame that can easily and reliably cover the interior facing surface except for the vertical frame and the upper frame with a frame at the same time. The new door frame is provided with a frame having a fixing piece that covers the interior side surface of the vertical frame and the upper frame of the existing door frame and overlaps with the interior side of the vertical frame and the upper frame of the existing door frame. 2. The door frame renovation structure according to claim 1, wherein the fixing piece is simultaneously fixed by fixing through the metal base material, and the frame is set on a room-facing surface of the existing door frame. 3. It is what it was.

According to the third aspect of the present invention, the new door frame is fixed to the existing door frame by the metal base material of the vertical frame at least so that the vertical frame can be easily fitted without looseness. The metal base material of at least the vertical frame is formed with an integrally formed or separately attached resilient contact piece which resiliently contacts the rear surface of the new door frame. 2 is a door frame remodeling structure.

According to a fourth aspect of the present invention, in accordance with the third object, the new door frame is fixed by screws, the screws are prevented from being exposed from the front, and the appearance of the new door frame is improved. In order to obtain a good texture and good quality, the metal base material installed on the existing door frame should be formed in a shape that conforms to the vertical frame and upper frame shape of the existing door frame excluding at least the interior side visible surface. The outdoor door surface is formed with a standing piece whose front end is bent to the front side, and the new door frame is provided with an outdoor surface that projects forward from the outdoor surface of the existing door frame. On its outside, there is provided an L-shaped bent portion formed by an abutting portion that comes into contact with the standing piece and an overlapping portion that overlaps with the exterior surface of the existing door frame. Screw on the step and inside and outside opening surface and vertical frame And the upper frame is screwed to the standing piece at the contact portion of the L-shaped folded portion, and the lower frame is screwed to the exterior surface of the existing door frame at the overlapping portion of the L-shaped folded portion. The door frame remodeling structure according to claim 1, 2 or 3, wherein

According to a fifth aspect of the present invention, in order to fix the new upper frame to another form in the upper frame which has less influence on the installation of the new door frame as compared with the inclination of the vertical frame. To
Using an anchor fitting instead of the metal base material of the upper frame,
4. The door frame remodeling structure according to claim 1, wherein the upper frame of the new door frame is fixed via the anchor.

According to the sixth aspect of the present invention, the lower frame tends to be slightly higher. However, in accordance with the first and third problems, the lower frame of the new door frame is fixed in another form. like,
Instead of directly fixing the above-mentioned new door frame, a metal base material or a plurality of anchors at predetermined intervals are installed on the lower frame of the existing door frame over its entire length in the longitudinal direction, and the lower frame of the new door frame is attached to the above-mentioned frame. The door frame retrofitting structure according to any one of claims 1, 2, 3, 4 and 5, wherein the door frame is fixed via a metal base material or an anchor.

According to a seventh aspect of the present invention, in accordance with the fourth aspect, the installation of the new door frame is performed by fixing the above-mentioned door frame together with the metal base material, the anchor fitting, and the like by filling the back side with a filler. In order to achieve good adhesion when the filler is integrated,
7. The new door frame is integrated with an existing door frame by filling and curing an adhesive filler in a space on the back side of the new door frame.
The door frame remodeling structure described in (1).

According to the present invention, the adhesive filler is uniformly and sufficiently filled in the back surface of the new door frame without any voids, and the adhesive filler is highly adhered to the rear face of the door frame. The filler is separated and formed with a pre-filled material of inorganic or organic fine powder or fine granular material and a subsequent filling liquid of a resin-based binder, and the above-mentioned pre-filled material is injected from an inlet provided at the top of a new door frame. 8. The door frame remodeling structure according to claim 7, wherein the filling is performed by injecting directly or via a guide tube, and thereafter, the subsequent filling liquid is injected in the same manner, whereby the filling is cured.

The present invention provides these as the means of solving the above-mentioned problems, respectively, as the gist of the invention.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described more specifically with reference to the drawings. In FIGS. 1 to 5, A is a new door frame, and the new door frame A is provided with an intermediate step. The door frame is refurbished by installing the door frame B so as to cover the existing door frame B in which the inner and outer opening surfaces are arranged stepwise. At this time, the new door frame A is provided at least on the indoor facing surface. In this example, the new door frame A is a room in which the new door frame A protrudes forward from the exterior surface of the existing door frame B. An outside finding surface 7 and an L-shaped folded portion 8 formed by a contact portion 9 and an overlapping portion 10 which overlaps with the outside finding surface of the existing door frame B along the outside finding surface on the outside; Covers the indoor side found surfaces of the vertical frame and the upper frame of the existing door frame B. There as having a frame 12 having a fixing piece 13 to be polymerized in these and the inner opening surface.

That is, the new door frame A of this embodiment is formed integrally by press-forming or the like so as to have an expected width and shape corresponding to the existing door frame B, respectively, or integrally formed after section molding. Left and right vertical frame 1, upper frame 2
And the lower frame 3 is welded and fixed at the corners to form the above-mentioned rectangular frame, and is formed integrally with the existing door frame B so as to be integrally formed in the inside and outside directions. And a stepped intermediate portion 6 and stepped inner and outer opening surfaces 4 and 5 arranged via the stepped portion 6 along the shape of the existing steel door frame B which is generally used. The front end of the surface 5 is bent in the projecting direction (left and right outer direction and up and down direction) at a position protruding forward from the outdoor facing surface of the existing door frame B to form the outdoor facing surface 7. The front end of the outdoor-side finding surface 7 is bent toward the finding surface side at an intermediate position of the outdoor-side finding surface of the existing door frame B, so that the contact portion 9 of the L-shaped folded portion 8 is further bent. The tip of the contact portion 9 is bent in the direction of extension along the found surface of the existing door frame B, and the weight of the L-shaped folded portion 8 is increased. There a part 10 as having been formed respectively, the inner opening surface 4 at the step portion 6 at this time
Projecting outwardly from the outside of the vehicle to form a new door frame A on the stepped portion 6.
The airtight material 11 also serving as a door cushion is fitted and fixed in the fitting groove so that a series of
Airtightness at the time of closing is ensured on the same surface on the inner periphery of the door 23.

On the other hand, the frame 12 corresponds to the vertical frame 1 and the upper frame 2 of the new door frame A, and covers the interior side of the existing door frame B. The new door frame provided with a fixing piece 13 facing the outside, which bends the opening end side end of the surface so as to form an L-shape outside and overlaps with the inner opening surface 4 of the new door frame A. A is made of the same metal as that of A. At this time, the frame 12 is integrally welded to a gate shape, or is made of bar materials for the left and right vertical frames and the upper frame.

The installation for refurbishment of the door frame using the new door frame A formed as described above is carried out on the vertical frame and the upper frame of the existing door frame B for vertical extension and horizontal extension over the entire length in the longitudinal direction, respectively. The new door frame A is inserted into the opening of the existing door frame B from the front, and the vertical frame 1 and the upper frame 2 are inserted through the metal base material 14 into the lower frame 1. Is fixed directly to the lower frame of the existing door frame B and fixed in each case. In this example, the vertical frame 1 and the upper frame 2 of the new door frame A are interposed through the metal base material 14. The fixing piece 13 is fixed at the same time by fixing, and the frame 12 is set on the indoor side finding surface of the existing door frame B.

The metal base material 14 of the present embodiment for fixing the left and right vertical frames 1 and the upper frame 2 of the new door frame A has a shape conforming to the vertical and upper frame shapes of the existing door frame excluding the interior-facing surface. In the present example, the metal base material 14 is formed with an upright piece 19 having a front end bent toward the front side on the outdoor side finding surface.
It has an intermediate step portion of the existing door frame B, a stepped portion 17 corresponding to the stepped inner and outer opening surfaces, and the inner and outer substrates 15 and 16, and the front end of the outer substrate 16 is stretched along the outdoor surface of the existing door frame B. The bent portion 18 bent in the outgoing direction and the front end of the bent portion 18 are further bent toward the outside of the front at an intermediate position of the finding surface, and are bent to the contact portion 9 of the new door frame A. It is also made of a metal, provided with a standing piece 19 having a corresponding position and a protruding width. The metal base material 14 installed on the vertical frame and the upper frame of the existing door frame B of this example is the same as that of the new door frame A. The rear surface is formed integrally or separately attached to be elastically contacted with the back surface. In this example, the elastic member is provided with the integrally formed elastic contact piece 20. , This is metal base material 1
The inside substrate 15 located on the indoor side of No. 4 is arranged so as to slightly float from the existing door frame B except for the fixed position, and the indoor side end is bent in the opening direction, and the spring effect is formed at the bent portion. So that the new door frame A
Are formed so as to resiliently contact the vertical frame 1 and the upper frame 2.

The metal base material 14 is installed on the existing door frame B by screwing the bent portion 18 on the outdoor side of the metal base material 14 and the inner and outer substrates 15 and 16 corresponding to the inner and outer opening surfaces of the existing door frame B, respectively. At this time, the metal base material 1 is fixed to the vertical frame of the existing door frame B.
The fixing of the metal base material 14 to the upper frame is also horizontal, even when the upper frame is inclined, while the fixing of the metal frame 4 is vertical when the vertical frame is inclined. As described above, the fixing of the screws 21 is performed so as to secure the vertical for the vertical frame 1 and the horizontal for the upper frame 2 as much as possible as a reference for setting the new door frame A. The frame A is fixed so that it can be settled properly.

The fixing of the new door frame A via the metal base material 14 installed on the vertical frame and the upper frame of the existing door frame B is performed by
Screws 21 at the intermediate step 6 and the inner and outer opening surfaces 4 and 5 respectively
In the vertical frame 1 and the upper frame 2, a screw 21 is screwed to the upstanding piece 19 at the contact portion 9 of the L-shaped folded portion 8, and in the lower frame 3, the overlapped portion 10 of the L-shaped folded portion 8 is formed. It is assumed that the screw 21 is fixed to the exterior surface of the existing door frame B with the screw 21.

That is, the new door frame A is inserted into the opening of the existing door frame B on which the metal base material 14 is installed from the front thereof, and the new door frame A covers the existing door frame B, and the new door frame A covers the metal base material 14. In this example, a correct fit is obtained, and in this embodiment, the elastically contacting piece 20 is elastically pressed by the spring effect and temporarily fixed by being held by the metal base material 14. The contact portion 9 of A contacts the standing piece 19 of the metal base material 14 on the outside thereof, and the overlapping portion 10 of the lower frame 1 contacts the found surface of the lower frame of the existing door frame B. The intermediate step 6, the step 1 of the metal base material 14 from the inner and outer opening surfaces 4, 5
7. Screws 21 are fixed to the inner and outer substrates 15 and 16, and the standing pieces 19 of the metal base material 14 are connected from the contact portions 9 to the overlapping portions 10.
Screw 21 from the overlapping portion 10 to the lower frame
One stop completes the fixation.

By installing the new door frame A in this manner, a new door frame A having a considerable strength can be obtained. In this embodiment, the door 23 is supported and frequently used. In order to prevent the new door frame A that receives an impact due to the opening / closing from being loosened by the screws 21, backlash is further filled with the adhesive filler 22 in the rear side space of the new door frame A. By doing so, the new door frame A is integrated with the existing door frame B or the metal base material 14 installed thereon.

At this time, mortar may be used as a filler for installing a door frame in a newly-built building like the existing door frame B in the illustrated example. Tend to be longer,
Further, as shown in the figure, the gap on the back side of the new door frame A between the existing door frame B and the existing door frame B is relatively thin, so that it can be spread over the gap on the back side of the new door frame A using mortar. Therefore, in this example, the adhesive filler 22 is used to fill and cure the adhesive filler 22. At this time, in this example, the adhesive filler 22 is used.
Is formed separately with a pre-filled material of inorganic or organic fine powder or fine granular material and a subsequent filling liquid of a resin-based liquid binder, and installed on the upper part of the new door frame A, for example, the upper frame 2. The preceding filling material is injected directly or through a guide tube from an injection port (not shown), and thereafter, the subsequent filling liquid is similarly injected to be filled and cured, whereby the thin rear surface of the new door frame A is formed. After sufficiently filling the side gap with the preceding filler sufficiently and uniformly and surely, the subsequent filler liquid serving as a binder is supplied and permeated into the preceding filler, and wetted by this, so that the members between the members are connected to each other. Having strong adhesion and waterproofness, the adhesive filler 22 is densely filled and hardened in the above-mentioned space.
The dew condensation is prevented from occurring on the rear surface of the newly-installed door frame A, and the heat insulating property and the sound insulating property are improved.

The preceding filler is sand such as silica sand, crushed rock,
Inorganic powder such as glass and cement, organic fine powder such as resin beads and wood chips, granules, and mixtures thereof can be used. In this example, a mixture of inorganic powder, particularly silica sand and high-strength cement, can be used. The subsequent adhesive liquid is an adhesive liquid of, for example, a self-crosslinkable acrylic resin among various resin adhesives.

After the new door frame A is installed, it is possible to inject them directly from an injection port provided at an intermediate position in the longitudinal direction of the upper frame, for example. This is performed through the above-mentioned guide tube so that it can be performed simply and reliably. In the present embodiment, the guide tube is made of a resin tube such as a transparent tube made of a highly flexible polyvinyl chloride and the outer periphery thereof. In this example, the resin tube is inserted into the lower end of each vertical frame from the single or plural inlets provided in the upper frame, and the preceding filler is filled. The adhesive filler 22 is filled by injecting a subsequent resin liquid, and then the resin tube is pulled out to cure the adhesive filler 22. Prior to filling of the filler and / or subsequent resin liquid for are to perform this using pressurizing means such as a pump as needed.

In this embodiment, the adhesive filler 22 is provided on the rear side of the new door frame A by using the metal base material 14 having the entire length in the longitudinal direction for the vertical frame and the upper frame of the existing door frame B. The metal base material 14 is provided with through holes (not shown) at predetermined intervals so that the filling is not hindered. The through holes allow the adhesive filler 22 to be supplied to the front and back surfaces by the above filling. It is to be done.

FIG. 6 shows an example in which the vertical frame 1 and the upper frame 2 of the new door frame A are constructed in the same manner as described above, while the lower frame 3 is of another form. The above-mentioned L has a stepped portion 6 and stepped inner and outer opening surfaces 4 and 5 arranged via the stepped portion 6 without the outdoor-side finding surface 7 and the L-shaped folded portion 8. This is an example in which, instead of fixing the folded portion 8 at the overlapping portion 10, the outer opening surface 5 is fixed to the outer opening surface of the lower frame of the existing door frame B with a screw 21 so as to be fixed directly. The other parts are the same as those in the above-described example.

The new door frame A installed in this manner has a door 23 filled with a heat insulating material and having heat insulation and soundproofing properties.
The refurbishment work is completed by suspending on a vertical frame on one side.

The remodeling of the door frame of the present embodiment is performed in a short time of about several hours, without generating noise, dust, etc., and without causing troubles such as the inability to install the new door frame A. Since this can be performed, it is suitable for renovating the door frame of an apartment in a residential state, and two or three door frames can be renovated a day, making the remodeling of the door frame extremely efficient. If the work is carried out by multiple work groups, the remodeling of the door frame of one apartment building can be completed in a very short time.

Although the illustrated example is as described above, the anchor of the upper frame is fixed by fixing the upper frame to the installation of the new door frame by securing the standard of installation of the new door frame by the metal base material of the vertical frame. So that it is in the form used
For example, an anchor is used in place of the metal base material of the upper frame, and the upper frame of the new door frame is fixed via the anchor metal. In addition, there is a problem that the height of the lower frame after renovation is slightly increased, but it is necessary to install the above new door frame directly to solve other problems. Instead of attaching and fixing, a metal base material or a plurality of anchors at predetermined intervals are installed on the lower frame of the existing door frame over its entire length in the longitudinal direction, and the lower frame of the new door frame is connected via the metal base material or the anchor metal. In the case where the adhesive filler is filled and hardened at this time, for example, the resin tubes are inserted so as to reach the middle positions of the lower frames, respectively, so that the rear of the lower frame of the new door frame is inserted. Adhesive filling on the side as well In the practice of the present invention, including filling and curing, the adhesive filler is a mixture of the preceding filler and the subsequent adhesive liquid, and this is filled and cured. Existing door frames, new door frames, their vertical frames, upper frames, lower frames, metal base materials, picture frames to be used as required, resilient connecting pieces, anchor fittings, adhesive fillers, and other specific materials, Shapes, structures, relationships among them, frameworks and filling methods and procedures, additions thereto, and the like can be of various forms without departing from the gist of the present invention.

[0035]

The present invention is configured as described above.
According to the first aspect of the present invention, the metal base material for vertical extension over the entire length in the longitudinal direction installed on the vertical frame of the existing door frame is used as a reference for setting the vertical frame in the new door frame for fixing the new door frame. By doing so, even if the vertical frame is inclined and the existing door frame is installed distorted, the vertical frame shall be absorbed and the installation standard shall be established independently regardless of the inclination. By fixing the new door frame to this, the new door frame can be installed as easily and securely as possible without distortion, eliminating the situation where construction is impossible and remodeling the living conditions of people such as apartments. It is possible to provide a door frame remodeling structure that is suitable for a door frame and that can ensure the quality of remodeling with good fit.

According to the second aspect of the present invention, it is possible to easily and surely cover the interior-facing surface of the new door frame except for the vertical frame and the upper frame with the frame at the same time.

According to the third aspect of the invention, it is possible to fix the vertical frame of the newly-installed door frame with at least the metal base material of the vertical frame without looseness and to easily fit the frame.

According to a fourth aspect of the present invention, the fixing screw is not exposed at the front of the new door frame, the appearance is improved as much as possible, and the refurbishment quality is further secured. it can.

According to the fifth aspect of the present invention, it is possible to fix the new upper frame to another form in the upper frame which has less influence on the installation of the new door frame than the inclination of the vertical frame. .

In the invention according to claim 6, the lower frame tends to be slightly higher, but the lower frame of the new door frame can be fixed in another form.

According to a seventh aspect of the present invention, the installation of the new door frame is performed by integrating the filler material with a metal base material, an anchor, or the like by filling the filler material on the back side of the door frame with the fixing. The new door frame should be able to exhibit sufficient adhesiveness when it is manufactured, and the long-term stability of the new door frame can be sufficiently ensured, and this stability can be ensured as simply as possible. Things.

According to the eighth aspect of the present invention, the adhesive filler can be uniformly and sufficiently filled in the back surface of the newly-installed door frame without any voids, and the adhesiveness can be highly ensured.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a new door frame obtained by renovating an existing door frame.

FIG. 2 is a longitudinal sectional view of a new door frame obtained by renovating an existing door frame.

FIG. 3 is an enlarged cross-sectional view of one vertical frame portion of FIG.

FIG. 4 is an enlarged vertical sectional view of an upper frame portion of FIG. 2;

FIG. 5 is an enlarged vertical sectional view of a lower frame portion of FIG. 2;

FIG. 6 is an enlarged vertical sectional view of a lower frame portion according to another example.

[Explanation of symbols]

 Reference Signs List A New door frame B Existing door frame 1 Vertical frame 2 Upper frame 3 Lower frame 4 Inside opening surface 5 Outside opening surface 6 Stepped portion 7 Outdoor exterior surface 8 L-shaped folded portion 9 Confronting portion 10 Overlapping portion 12 Frame 12 Fixing Piece 14 metal base material 19 standing piece 20 resilient contact piece 22 adhesive filler 23 door

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Susumu Susumu Honda F-term (reference) 2E011 JA03 KA06 KB02 KC02 KC03 KC04 KC09 KD26 KD29 KE04 KE06 KH01

Claims (8)

[Claims] 1. A door frame retrofitting structure in which a new door frame is installed so as to cover an existing door frame in which inner and outer opening surfaces are arranged stepwise through an intermediate step portion, wherein the new door frame is provided at least on the indoor side. A rectangular integrated frame integrally formed in a shape along the existing door frame excluding the found surface, and metal bases for vertical extension and horizontal extension over the entire length in the longitudinal direction of the vertical frame and upper frame of the existing door frame, respectively. After installing the new door frame, insert the new door frame into the opening of the existing door frame from the front, insert the vertical frame and upper frame of the new door frame through the metal base material, and lower the lower frame into the lower frame of the existing door frame. Door frame refurbishment structure characterized by installing a new door frame by directly attaching and fixing each. 2. The new door frame includes a frame having a fixing piece that covers a vertical frame of the existing door frame and an indoor side surface of the upper frame and overlaps with an inner opening surface of the frame. 2. The frame according to claim 1, wherein the frame and the upper frame are fixed via the metal base material to fix the fixing pieces at the same time, and the frame is installed on the interior side surface of the existing door frame. 3. Renovated door frame structure. 3. A metal base material of at least a vertical frame installed on the existing door frame is provided with an integrally formed or separately attached resilient contact piece which resiliently contacts the back surface of the new door frame. The door frame remodeling structure according to claim 1 or 2, wherein 4. The metal base material installed on the existing door frame is formed along the vertical frame and the upper frame shape of the existing door frame excluding at least the indoor side visible surface, and the front end of the metal base material is located on the outdoor side visible surface. The new door frame is provided with an outdoor-facing surface protruding forward from the outdoor-facing surface of the existing door frame. An L-shaped folded portion is provided by a contact portion and an overlapping portion that overlaps with the exterior surface of the existing door frame. The fixing of the new door frame is screwed at the intermediate step portion and the inner and outer opening surfaces, respectively. At the same time, the vertical frame and the upper frame are screwed to the upstanding piece at the contact portion of the L-shaped folded portion, and the lower frame is located at the overlapped portion of the L-shaped folded portion with respect to the outdoor surface of the existing door frame. 2. The method according to claim 1, wherein The door frame remodeling structure according to 2 or 3. 5. The method according to claim 1, wherein an anchor is used instead of the metal base material of the upper frame, and the upper frame of the new door frame is fixed via the anchor. 4. The door frame remodeling structure according to 3. 6. Instead of directly fixing the new door frame,
A metal base material or a plurality of anchors at predetermined intervals are installed on the lower frame of the existing door frame over its entire length in the longitudinal direction, and the lower frame of the new door frame is fixed via the metal base material or the anchor metal. The method according to claim 1, 2, 3, 4, or 5.
Door frame refurbishment structure described in 1. 7. The new door frame is integrated with an existing door frame by filling and curing an adhesive filler in a space on the back side of the new door frame.
7. The door frame remodeling structure according to 3, 4, 5, or 6. 8. The above-mentioned adhesive filler is separated and formed with a pre-filled material of inorganic or organic fine powder or fine particles and a subsequent filler of a resin-based liquid binder. 8. The door according to claim 7, wherein the filling is hardened by injecting the preceding filling directly or through a guide tube from the installed inlet, and then injecting the subsequent filling liquid in the same manner. Frame renovation structure.