JP2889509B2 - Renovated door frame for earthquake resistance - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthquake-resistant retrofitted door frame, and more particularly to an earthquake-resistant retrofitted door frame capable of constructing an earthquake-resistant doorframe only by renovating a vertical door frame.

[0002]

2. Description of the Related Art Conventionally, when a door frame of a building is retrofitted, an existing door frame embedded and attached in a skeleton is removed and replaced with a new door frame. However, in this refurbishment method, it is necessary to remove the existing door frame from the skeleton and attach a new door frame to the skeleton.
There was a drawback that the labor required for renovation increased and the cost increased. Therefore, in order to solve such a drawback, a retrofitted door frame for earthquake resistance (Japanese Utility Model Publication No. 61-13678) has been proposed. The present invention relates to an outer door frame formed in a square shape with upper and lower horizontal frames and left and right vertical frames, fitted into an existing door frame and welded, and an inner frame formed in an upper frame and left and right vertical frames in a gate shape. The door frame is partially overlapped with the outer door frame and integrally joined by welding.

[0003]

The present invention is excellent in that it is not necessary to remove the existing door frame from the frame.
Since the outer door frame is formed in a square shape, and the inner door frame is formed in a gate shape, construction work is required on all four sides, up, down, left, and right, and there was a problem that renovation work could not always be completed in a short time. . When renovation work is performed, residents usually live in the building, so care must be taken to complete the renovation work as quickly as possible. Further, in the case of the above-mentioned invention (Japanese Utility Model Publication No. 61-13678), new door frames are provided on four sides in the upper, lower, left and right directions so as to overlap the existing door frame. For example, when it is necessary to move after renovation work, there is a risk that large luggage cannot be carried out. The present invention has been made in view of these problems, and provides a retrofit door frame for earthquake resistance that can complete renovation work quickly and inexpensively and does not make the effective opening area too small. The purpose is to do.

[0004]

In order to achieve this object, the retrofitted door frame for earthquake resistance according to the present invention is mounted in a body.
Attached only to the vertical door frame of the existing door frame
And is formed narrower than the gap between the inner and outer surfaces of the existing vertical frame.
And the existing hanging vertical frame in place of the existing door
Opposite to the door end side end face of the new door to be attached,
Attached to the refurbished member or the existing vertical frame of the door end, accommodating dead bolts etc. protruding from the new door, and the end surface on the door side is formed so as to be deformable in response to the movement of the door due to an earthquake or the like. The door frame can be completely renovated only by the construction on the door side .

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to embodiments. FIG. 1 is a cross-sectional plan view illustrating an example of an earthquake-resistant renovation door frame in a state where renovation work is completed,
It shows a state in which the seismic retrofitting door frame 1 according to the present invention is attached to the door-end vertical frame Fb of the existing left and right vertical frames Fa and Fb. The hanging vertical frame Fa and the upper and lower horizontal frames Fc and Fd (FIG. 2) are already provided, and a new door 2 is attached in this state.

[0006] The retrofitted door frame 1 for earthquake resistance according to the present invention comprises a first refurbished member 3 fixed to the door vertical frame Fb, and a first refurbished member 3.
The second refurbishment member 4 is fixed to the second refurbishment member 4 and faces the door 2, and the lock receiving portion 5 is mounted in the middle of the second refurbishment member 4 in the height direction. The first refurbishment member 3 is a plate member extending in the height direction, and as shown in FIG. 3, central portions 3 a ₁ , 3 a ₂ , 3 a having a shape corresponding to the door side end surface of the existing vertical frame Fb.
₃ and both end portions 3 b and 3 c bent toward the door 2. Here, tap holes or screw holes 6 and 7 are provided at appropriate positions in both ends 3b and 3c, and the distance between both ends 3b and 3c is the distance between the inner and outer surfaces of the existing vertical frame Fb (see FIG. 3 (up and down direction of 3). At the center portion 3a _1, 3a _3, fixed portion 8, 9 are provided, are fixed to the vertical frame Fb of the existing by welding. Note that a stud bolt may be attached to the existing vertical frame Fb and fixed with a nut.

The second refurbishment member 4 is a door-end side end surface 2 a of the door 2.
And a door contact portion 4b with which the door 2 contacts via the airtight 10 or the like.
Door facing portion 4a has a main body portion 4a ₁ and the end portion 4a _2, the door abutting portion 4b has an end portion 4b ₁ and the folded portion 4b ₂ and the locking portion 4b ₃ . Then, the end surface of the main body portion 4a ₁ of the second member is located in the vertical frame Fb side from the end surface of the central portion 3a ₃ of the first member, the locking portion 4b of the second member
₃ is abutted against the central portion 3a ₂ of the first member. For this reason, in the event of an earthquake or the like, the second refurbished member 4 can move toward the vertical frame Fb, and the clearance between the lock receiving portion 5 and the door 2 can be secured. Furthermore, since the central portion 3a ₂ and the engaging portion 4b ₃ of the second member of the first member is in contact, the force applied when the door 2 is closed receives at a first renovation member 3 and the vertical frame Fb In other words, a strong door frame can be configured.

[0008] both ends 4a _2, 4b ₁ of the second renovation member,
Each is bent toward the door-end side, and is fitted to both ends 3b and 3c of the first retrofitting member. The interval between both ends 4a ₂ and 4b ₁ of the second refurbished member is the same as the existing vertical frame Fb.
Are set slightly narrower than the distance between the inner and outer surfaces (upper and lower in FIG. 3). At the ends 4a ₂ and 4b ₁ of the second refurbished member, mounting holes 11 and 12 are provided corresponding to the tapped holes or screw holes 6 and 7 at both ends 3b and 3c of the first refurbished member. ing. The mounting holes 11 and 12 are formed as long holes extending in the left-right direction in FIG. 3 and enable the second refurbished member 4 to move toward the vertical frame Fb during an earthquake as described above. I have. The second retrofitting member 4 is screwed to the first retrofitting member 3 via the screw holes 6 and 7 (or tap holes) after the first retrofitting member 3 is fixed to the existing vertical frame Fb. is there. In this case, since the mounting holes 11 and 12 are formed as long holes, the second retrofitting member 4 can be mounted straight even if the vertical frame Fb is deformed over time. Since the mounting holes 11 and 12 are oblong holes, even if the door 2 pushes the second retrofitting member 4 during an earthquake, the second retrofitting member 4 moves toward the vertical frame Fb and is required to open the door 2. The clearance can be secured as described above.

As shown in FIG. 4, the lock receiving portion 5 is attached by mounting screws 13 at a position in the height direction of the door facing portion 4a of the second remodeling member 4. The lock receiving portion 5 is disclosed, for example, in Japanese Utility Model Publication No. 59-15568, and has a lock receiving member 1 made of stainless steel or the like.
4, a cover material 15 made of plastic or the like is elastically fitted (FIG. 1). Lock receiving money 14
It is formed by bending a metal strip having a substantially constant width into a trapezoidal shape, and includes an upper flat surface portion 14a that is the upper side of the trapezoid and an attachment surface 14b that is continuous with the bottom side of the trapezoid (FIGS. 4 and 5). 5). A rectangular engaging opening 16 is provided in the upper flat portion 14a, and a dead bolt 17 and a latch protruding from the door 2 are inserted into the upper opening portion 16a. FIG.
The state where the dead bolt 17 is inserted through the engagement opening 16 is shown. The upper flat portion 14a is bent toward the second refurbished member at the width direction edge portion 18 and both edge portions 19 of the engagement opening 16, and the mechanical deformation strength is enhanced. The mounting surface 14b is provided with an elongated hole 20 for receiving the mounting screw 13. Since the lock receiving member 14 is formed by bending a metal strip into a trapezoidal shape, when the door 2 is brought into contact with the upper flat portion 14a of the lock receiving member due to an earthquake or the like, the lock receiving member 14 is locked. The trapezoidal shape of the gold 14 is deformed so as to be lowered, and at the same time, the mounting surface 14b slides in the expanding direction to reduce the pressing force.
And, since a predetermined distance L is secured between the door end side end surface 2a of the door 2 and the second refurbished member 4 (FIG. 1), the door 2 does not stop being opened due to an earthquake or the like. .

The cover member 15 has a contour corresponding to the trapezoidal shape of the lock receiver 14, and has a box-shaped concave hole 20 corresponding to the engagement opening 16 (FIG. 6). And lock receiving money 1
4 is elastically fitted to the bent edge portion 19 of the engagement opening 16 from the back side, and the lock receiver 14 and the cover member 15 are integrated. Since the cover member 15 is made thin so as to be easily broken, the protective action of the door 2 due to the deformation of the lock receiver 14 is not impaired.

Next, a description will be given of a retrofitting work using the retrofitting door frame 1 having the above-described structure. After removing the existing door from the door frame Fa, the first refurbished member 3 is attached to the existing vertical frame Fb at the fixing portions 8 and 9. After that, the first retrofitting member 3 and the second retrofitting member 4 are fixed by using the tapped holes 6, 7, and the like. Also, the second refurbished member 4
The lock receiving part 5 is attached to the. Then, the new door 2 is moved to the door frame F.
The refurbishment work can be completed by hanging it on a. As described above, according to the present invention, it is not necessary to remove the existing vertical frame Fb from the frame Mb with much effort and cost.
The retrofitting of the earthquake-resistant door frame can be completed by extremely simple construction by removing the existing door, connecting the retrofitting members 3 and 4, and hanging the new door 2 on the vertical frame Fa.

After the construction is completed, the mounting hole 11 is hidden by the joint 20 covering the door end side of the door 2, so that there is no problem in crime prevention such as a screw being pryed open from the outside. Moreover, in the present invention, as shown in FIG.
End 4a ₂ of the second renovation member 4, so positioned on the indoor side of the vertical frame Fb of existing, it is effective crime prevention and can be brought close enough callings alignment 20 in door frame Fb. The end portion 4a _2, 4b ₁ of the second renovation member because it is not in the vertical frame Fb in the same plane of the existing edges in resident end 4a _2, 4b ₁ may no injury. In this construction, the existing vertical frame Fa
And the upper and lower horizontal frames Fc and Fd are used as they are, so that the opening height in the vertical direction does not change only slightly narrowing in the horizontal direction. For example, even if it is necessary to carry out a large luggage (closet, cupboard) for moving or the like, if necessary, the screws in the mounting holes 11 and 12 can be removed, so that the luggage in the room cannot be carried out. No problem arises.

FIG. 7 shows an earthquake-resistant retrofitted door frame having substantially the same configuration as that of FIG. In this example,
Central portion 3a ₃ of the main body portion 4a ₁ and the first member 3 of the second member 4
DOO are partially polymerized, is characterized in that the main body portion 4a ₁ of the second member 4 is brought into contact with the central portion 3a ₃ of the first member 3. This retrofitted door frame for earthquake resistance is excellent in that the lock receiving portion 5 and the like are easily deformed when the door 2 presses the lock receiving portion 5 due to an earthquake or the like. 8 to 10 show another embodiment of the present invention.
2 shows an example in which the second refurbished member 4 is directly fixed to the existing vertical frame Fb without using.

FIG. 8 shows an embodiment in which the lock receiving portion 5 as shown in FIG. 4 is attached to the existing vertical frame Fb. The second retrofitting member 4 is formed of a plate material which is bent in a substantially rectangular cross section. Have been. Then, the second retrofitting member 4 and the existing vertical frame Fb are fixed by the fixing screws 21 and 21. And the second
Openings 22 and 22 are provided on the end face of the remodeling member 4 that are not in contact with the vertical frame Fb so as to correspond to the positions of the fixing screws 21 and 21, so that screws and drivers can be inserted. In order to fix the second refurbished member 4 to the existing vertical frame Fb, a method of inserting a nutsert into the skeleton and fixing with screws, a method of inserting a hole-in anchor in the skeleton and fixing with screws, There is a method of fixing directly with screws, or a method of fixing with long screws with co-holes from the outside.

FIG. 9 and FIG. 10 show that folded portions 4c and 4d are provided on the end face of the second remodeling member 4, and the folded portions 4c and 4d are provided.
4D shows an example in which the second retrofit member 4 is fixed to the existing vertical frame Fb. 9 and 10, relative to substantially the same, the in the embodiment of FIG. 9, is in contact engagement portion 4b ₃ of the second member to the first portion Fb ₁ of the vertical frame Fb, FIG 10
Second In the embodiment of the main body portion 4a ₁ is vertical frame Fb of the second member
Except that is brought into contact with the portion Fb _2. The configurations of FIGS. 9 and 10 correspond to the configurations of FIGS. 3 and 7, respectively.
And the same effect as described in the embodiment of FIG. Also in this embodiment, the fixing screw 21 is used.
A method of putting nutsert into the body and fixing with screws, a method of fixing with holes with a hole-in anchor in the body, a method of fixing directly with screws in the body, a method of fixing with long screws with co-holes from the outside, etc. There is. In addition, fixed screw 2
An opening 22 is provided corresponding to the position 1, so that a screw or a screwdriver can be inserted.

[0016] Although various embodiments have been described above, the present invention
Is not limited to what is specified in the embodiment and can be changed as appropriate.
is there. For example, in the embodiment of FIG.
The opening 3A is large enough to fit the cover material 15
It is suitable to be provided on the first refurbished member 3 (see FIG. 11).
See). According to this configuration, the dead bolt 17 is connected to the first member.
3 and the existing vertical frame Fb,
There is little risk that the door 2 will not open due to damage to the lock.
Also, the existing vertical frame Fb and mortar filling part Mb
It is more preferable to provide the hole 23. The existing door
If you are using an engraved lock, divert that hole.
Just do it.

[0017]

As described above, according to the retrofitted door frame for earthquake resistance according to the present invention, the renovation of the door frame can be completed only by the work on the door tip side, so that the installation is easy, and the renovation is completed quickly and inexpensively. be able to. Further, since the hanging side and the upper and lower horizontal frames are not renovated, the effective opening area does not become so small, and there is no adverse effect on loading and unloading. Although the refurbished member according to the present invention is detachable, it cannot be pryed open from the outside, so that there is no problem in crime prevention.

[Brief description of the drawings]

FIG. 1 is a sectional plan view showing an embodiment of the present invention.

FIG. 2 is a sectional side view corresponding to FIG.

FIG. 3 is a detailed view of the retrofitted door frame of FIG. 1;

FIG. 4 is a front view (a) showing an attached state of a lock receiving portion.
FIG. 4B is a cross-sectional plan view (b) of the second retrofitting member.

FIG. 5 is a front view (a) and a right side view (b) of the lock receiver of the lock receiver.

FIG. 6 illustrates a cover material of the lock receiving portion.

FIG. 7 is a cross-sectional plan view showing a modification of FIG.

FIG. 8 is a sectional plan view showing another embodiment of the present invention.

FIG. 9 is a sectional plan view showing still another embodiment of the present invention.

FIG. 10 is a cross-sectional plan view showing a modification of FIG.

FIG. 11 is a sectional plan view showing still another embodiment of the present invention.

[Explanation of symbols]

 Fa, Fb Existing vertical frame Ma, Mb Frame 1 Seismic retrofitting door frame 2 Door after refurbishment 3 First refurbishment member 4 Second refurbishment member 5 Lock receiving part 6, 7 Screw hole (tap hole) of first refurbishment member 8 , 9 Fixing part of first refurbished member 11, 12 Mounting hole of second refurbished member 14 Lock catch 15 Cover material 17 Dead bolt of lock 20 Merging

Claims (6)

(57) [Claims] 1. An existing door frame attached to a body.
Of these, it is attached only to the door vertical frame, and
A refurbished member that is formed narrower than the gap between the inner and outer surfaces, and a new retrofitting that can be attached to the existing hanging vertical frame instead of the existing door
Facing the door end side end face of the
A lock receiving part which is attached to the vertical frame of the door and accommodates dead bolts etc. protruding from the new door , and whose door side end face is formed to be deformable in response to the movement of the door due to earthquake etc. The retrofitted door frame for earthquake resistance, characterized in that the renovation of the door frame can be completed only by the construction on the door side. Wherein said renovation member includes a first renovation member which is fixed to an existing door leading vertical frame, it is fixed removably to the first renovation member, facing the door leading side end surface of the new doors Second
It consists of a renovation member, in the second renovated member, seismic renovation door frame according to claim 1, wherein the lock receiving portion is characterized by comprising attached. 3. The first refurbished member has a screw hole or a tapped hole at a bent end portion bent toward a door, and the second refurbished member has the existing door head. the bent end portion which is bent toward the vertical frame is provided with a long hole extending in the horizontal direction, the holes in these first renovation member and the second refurbishment member, the two refurbished member is removably secured The retrofitted door frame according to claim 2 , wherein the first and second retrofitting members are shielded by a combination provided on a door. 4. The refurbishment member according to claim 1, wherein the refurbishment member is a door end of the new door.
The end face of the retrofitting member , which is detachably fixed to the existing doorside vertical frame so as to face the end face, is not in contact with the existing doorway vertical frame, and the detachable attachment / detachment of the retrofitting member and the existing doorside vertical frame is performed. claims, characterized in that the openings to allow the work is provided
The retrofitted door frame for earthquake resistance according to 1 . The outer end surface of claim 5, wherein the renovation member is located on the same or slightly inside and outside end face of the existing door leading vertical frame, the new
The combination provided on the door is provided substantially in contact with the existing vertical frame of the door end , and is claimed from claim 2.
Item 5. The retrofitted door frame for earthquake resistance according to any one of Items 4 to 4 . Wherein said renovation member is formed of a plate material which is bent to the cross-section substantially rectangular, before in the renovated member
The refurbished member is attached to the end face in contact with the existing vertical door frame.
While the mounting hole for fixing to the existing door head vertical frame is formed, on the end face not in contact with the door head vertical frame, the attachment / detachment work between the retrofit member and the existing door head vertical frame is performed. according to claim 1, openings to allow, characterized in that it is provided
Seismic renovation door frame.