JP2003161081A - Door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of remodeling particularly suited to an existing swing door installed to an door opening in a wall surface which permits easy opening of the door even though a door or door frame member is deformed after the occurrence of earthquake. <P>SOLUTION: This door assembly comprises a pair of vertical frames provided at the end portions at both the sides of the opening having a portion protruded from the wall surface, door hinges installed to either side of the vertical frame members, a door linked with the hinges, and a movable top frame member attached with flexible jointing fittings to the upper end portion protruded from a pair of vertical frame member in a state flexibly movable up and down and right and left. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door that can be easily opened even when deformation occurs during an earthquake.
In particular, the door of the present invention is characterized in that it can be easily installed by modifying an existing door. In the present invention, the term "door" refers to the entire structure including a frame and a door attached to the opening of the wall surface.

[0002]

2. Description of the Related Art In the entrance doors of apartments such as condominiums, in most cases, the frame that constitutes the door is built in a reinforced concrete wall. The door is made of metal such as steel. A typical example of a door structure is shown in FIG.
An example is shown in (a). Further, FIG. 5 shows a schematic cross-sectional view taken along the line AA ′.

As shown in the figure, the door frame 10 is embedded and fixed in the wall surface of the concrete wall 5, and the hinge 3 attached to the frame 10 supports the door 1 so that it can be opened and closed. Has been done. Reference numeral 2 is a door opening / closing knob. Figure 6
[Fig. 3] is a partial cross-sectional view of an upper part (a) and a lower part (b) showing a conventional door in a closed state. In this way, the door 1 is fitted in the frame body 10 with a slight gap,
The frame body 10 is directly fixed to the wall 5.

By the way, if a large earthquake such as the Great Hanshin-Awaji Earthquake occurs, even a building made of reinforced concrete will be greatly affected and the building will be damaged or tilted. In such a case, the door is also affected and an inclination as shown in FIG. 4B occurs, and the frame body 10 is deformed to form a gap 21 with the door 1, while the two contact each other. The hit portion 22 occurs. Therefore, there is a problem that the resident cannot open the door 1 at the time of the earthquake and cannot evacuate outside. In particular, since the doors are mostly made of steel, there are cases where the doors cannot be opened manually.

Therefore, various door mounting methods, seismic isolation doors, seismic resistant doors, etc. have been conventionally proposed. For example, Japanese Unexamined Patent Publication No. 10-266707 discloses a door mounting method and structure for mounting so that an open door (door of the present application) in a closed position is located outside an opening of a doorway.

[0006] In addition, in the registered utility model publication No. 3051072, there is a seismic replacement door for replacing the old steel entrance door with a new door by attaching the door part of the newly installed door to the outside of the existing frame. It is disclosed.
Further, Japanese Laid-Open Patent Publication No. 9-13827 discloses a seismic isolation door having a structure in which a door panel is attached to the door frame outside the surface of the frame.

[0007]

However, in any of the cases disclosed above, although the deformation of the wall is not directly received by the door, there are the following problems, respectively. That is, in JP-A-10-266707, the door mounting frame located outside the opening is deformed according to the deformation of the building. Therefore, although the degree of contact between the frame and the door is improved as compared with the case where the door is located inside the opening, the door may still be difficult to open or may not open.

The same is true for registered utility model publication No. 3051072, and the deformation of the frame of the door part which is attached to the outer side of the existing frame is inevitable, and it is difficult or impossible to open the door. Things can happen. On the other hand, in the seismic isolation door disclosed in Japanese Patent Application Laid-Open No. 9-13827, the above problem does not occur because the frame is not provided around the door, but since the frame is not provided, the packing performance is deteriorated. It has a great influence on various performances. For example, the packing may be directly exposed to flames, and fire resistance is likely to be inferior to conventional doors.

Further, in any of the above cases, the door itself is a new one, and it is not considered to reuse the existing door as it is. Therefore, even if the existing door is modified, the cost is high and the modification cannot be realized at low cost. The present invention solves the above problems and provides a door that can be reliably opened even when an earthquake disaster occurs. Moreover, the present invention is suitable for the modification of an existing door, and it is possible to modify the door corresponding to an earthquake at a minimum cost.

[0010]

SUMMARY OF THE INVENTION The present invention is a door provided in an opening portion of a wall surface, the pair of doors being provided at both end portions of the opening portion and having portions projecting from the wall surface. A vertical frame member, a hinge provided on any one of the vertical frame members, a door provided by the hinge, and a movable member at the upper end of the portion protruding from the wall surface of the pair of vertical frame members. The above problem is solved by a door characterized in that the upper frame is provided by a flexible joint hardware so as to be freely movable in the vertical and horizontal directions.

Further, the present invention is a door obtained by modifying an existing door provided in an opening of a wall surface, wherein
It is preferable that the pair of vertical frame members include an existing vertical frame part and an attached frame part that is provided to the vertical frame part so as to project from the wall surface.
Further, it is preferable that the door is a door reused by removing an existing door.

[0012]

DETAILED DESCRIPTION OF THE INVENTION The details of the door of the present invention will be described with reference to FIG. In the following, the case of modifying an existing door will be described as an example, but it is clear that the door of the present invention can be applied to a case of newly building. 1A shows the door 1 of the present invention in a closed state, and FIG. 1B shows the door 1 in an open state. Also,
FIG. 1C shows a state where the door 1 is opened, and B in FIG. 1B is shown.
FIG.

As shown in FIG. 1C, the frame 5 of the existing door is fixed to the wall 5 as it is. A pair of attached frame parts 11 is attached to the vertical frame part 11a of the frame body 10 with bolts or the like not shown.
Fix b. This makes it possible to form the vertical frame member 11 including the existing vertical frame portion 11a and the attached frame portion 11b and protruding from the wall surface. This example is an example of modifying an existing door, but when building a new building, the vertical frame part 11a of the frame 10 of the door has a shape protruding from the wall surface.
The frame body may be manufactured as a shape in which a and the attached frame portion 11b are integrated.

By the way, when the existing frame body 10 cannot be used, a new frame body may be provided in the opening portion of the wall 5, but the cost increases accordingly. Next, the door 1 is attached to either side of the vertical frame member 11 via the hinge 3. Here, the door 1 is a door that is reused by removing the existing door, but may be a new door on the assumption that the cost increase is allowed.

A movable upper frame member 12 is attached to an upper end portion of a portion protruding from the wall surface of the vertical frame member 11 via a flexible joint metal piece 13 described later. Normally, the movable upper frame member 12 is fixed to the vertical frame member 11, but if it is deformed in the event of an earthquake, it will be pushed up by the door 1 and can move up and down freely. Therefore, unlike the conventional case, the door does not hit the frame to be restrained, and the door can be freely opened even immediately after the earthquake disaster. Therefore, it does not hinder the evacuation of residents.

Next, the details of the flexible jointing hardware 13 will be described with reference to FIGS. 2 and 3. 2 is a partial cross-sectional view, and FIG. 3 is a partial front view, in which (a) shows a normal state, and (b) shows deformation due to the occurrence of the earthquake, and the door 1 is a movable upper frame member 12 Shows the state where the button is pushed up.

The portion protruding from the wall surface of the vertical frame member 11 (see FIG. 2,
In FIG. 3, the attached frame portion 11b) and the movable upper frame member 12 are
Although they are connected by the flexible joint metal 13, they are pressed and integrated by the action of the spring 13a in the normal state shown in (a). On the other hand, when the earthquake causes deformation, the movable upper frame member 12 is pushed up by the door 1, the spring 13a attached to the flexible joint hardware 13 is also compressed, and a gap is created between the vertical frame member 11 and the movable upper frame member 12. Occurs. Therefore, even if there is a hit between the door and the frame, it is possible to eliminate the situation where the door pushes up the movable upper frame and the door cannot be opened. Here, 18 is a small frame attached to the existing frame 10, and a gasket 18a for sealing prevents drafts and the like, enhances sound insulation performance, and has a fireproof structure.

This flexible joint hardware 13 is composed of a vertical frame member 11
It is not particularly limited as long as it and the movable upper frame member 12 are in loose contact with each other. Alternatively, the spring 13a may be loosely contacted and the movable upper frame member 12 may be placed on the vertical frame member 11 by its own weight. Further, the vertical frame member 11 and the movable upper frame member 12 are joined by the vertical frame member 11 as shown in FIG. 7 in addition to the type in which the movable frame member is placed on the vertical frame member as shown in FIGS. The shape in which the movable upper frame member 12 is sandwiched at the upper end of the vertical frame member 11 as shown in FIGS.
The movable upper frame member 12 and the movable upper frame member 12 may be in contact with each other at an inclined portion. In either case, in normal use, the frame shape is held by the flexible joint hardware, and when the frame is deformed in the horizontal direction, the vertical frame member 11 and the movable upper frame member 12 are loosely positioned to compensate. The door can be opened and closed even when the door and the movable upper frame material come into contact with each other when the door is opened and closed.

Although the present invention has been described as being applied to a door that opens and closes by a hinge, even in the case of a hinge type door, if the hinge part connected to the movable upper frame member 12 can be moved up and down, The invention can be applied. It should be noted that in the door of the present invention, when the deformation occurs, the locking ratchet may interfere with the receiving hole of the ratchet provided in the vertical frame member so that it cannot be unlocked. . Therefore, in the door of the present invention, it is preferable that the receiving hole portion is expanded in the vertical direction to allow a margin.

Further, the door of the present invention is preferably made of metal, wood or the like, or a frame, and more preferably made of steel.

[0021]

According to the door of the present invention, the door can be reliably opened even in the event of an earthquake. Particularly, in the present invention, it is possible to reuse an existing door and remodel it into an earthquake-resistant door at low cost.

[Brief description of drawings]

FIG. 1 is a plan view of a door of the present invention (a: closed state, b:
It is an open state) and its BB 'sectional drawing (c).

FIG. 2 is a partial cross-sectional view illustrating a joined state of a movable upper frame member and a vertical frame member.

FIG. 3 is a partial front view illustrating a joined state of a movable upper frame member and a vertical frame member.

FIG. 4 is an explanatory view of a conventional door (a) and a door (b) which is deformed at the time of a disaster.

5 is a cross-sectional view taken along the line AA ′ of FIG.

FIG. 6 is a partial sectional view of an upper portion (a) and a lower portion (b) of a conventional door.

FIG. 7 is a partial front view for explaining another embodiment of the joined state of the movable upper frame member and the vertical frame member.

FIG. 8 is a partial front view illustrating another embodiment of the joined state of the movable upper frame member and the vertical frame member.

FIG. 9 is a partial front view for explaining another embodiment of the joined state of the movable upper frame member and the vertical frame member.

[Explanation of symbols]

1 door 2 knobs 3 hinges 5 walls 10 frame 11 Vertical frame material 11a Vertical frame part 11b Attached frame part 12 (newly installed) movable upper frame material 13 Flexible hardware 13a spring 18 (new) small frame 18a fireproof gasket 21 Gap 22 Contact part (contact part)

Continued front page    (72) Inventor Tomohide Someya             2-3-2 Uchisaiwaicho, Chiyoda-ku, Tokyo             Saki Steel Co., Ltd. (72) Inventor Yutaka Shimo             2-3-2 Uchisaiwaicho, Chiyoda-ku, Tokyo             Saki Steel Co., Ltd. (72) Inventor Shotaro Naganuma             1-1-5 Koraku, Bunkyo-ku, Tokyo             Nearing Co., Ltd. (72) Inventor Naomi Sakurai             6-41-12 Kameido, Koto-ku, Tokyo             Material Co., Ltd. (72) Inventor Haruzo Kikukawa             2-3-2 Uchisaiwaicho, Chiyoda-ku, Tokyo             Saki Steel Co., Ltd. F-term (reference) 2E011 JA03 KA06 KB01 KB02 KC01                       KC06 KD14 KD34

Claims (3)

[Claims] 1. A pair of vertical frame members, which are doors provided in an opening portion of a wall surface, which are provided at both end portions of the opening portion and have portions protruding from the wall surface, and the vertical frame member. A hinge provided on either one of the members, a door fixed by the hinge, and a movable upper frame on the upper end portion of the portion projecting from the wall surface of the pair of vertical frame members by flexible joint hardware. A door that is provided so that it can be freely moved to the left and right. 2. The door is a door obtained by modifying an existing door provided in an opening portion of a wall surface, wherein the pair of vertical frame members comprises:
The door according to claim 1, comprising an existing vertical frame part and an attached frame part projecting from the wall surface and attached to the vertical frame part. 3. The door according to claim 2, wherein the door is a door reused by removing an existing door.