JP2003148062A - Frame structure of door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frame structure of a door device capable of preventing the head part of a door from being strongly pushed against a head when a door frame is deformed in case of earthquake. SOLUTION: The door frame 1 is deformed toward a hinge side from the door head side by the earthquake, and the door head side of the door 40 is lifted upward to butt into the head 4 from the lower side. A screw for connecting the lower part 7b of a joint piece 7 to a lower side jamb 6 is broken by the push-up force, the head 4 is moved upward, and the joint piece 7 combined with the head 4 is slid upward to the lower side jamb 6. Since the end on the door head side of the head 4 has such a structure that it is relieved upward by the push-up force of the door head side of the door 40, the upper end on the door head side of the door is prevented from being strongly pushed against the head 4, and even if the door frame 1 is deformed by the earthquake, the door 40 is opened to enable a passage to ensure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame structure for a door device, and more particularly to the above structure capable of opening the door even when the door frame is deformed together with the frame due to an earthquake.

[0002]

2. Description of the Related Art In a conventional general door apparatus, as shown in FIG. 9 (a), a door b is hinged to the inside of a door frame a, and the door upper part (upper edge) c and the upper part of the door frame a. Between the inside of the frame d and the entire width of the door b, a constant (3 to 5 mm) upper dust size L is provided. As shown in FIG. 9B, when the door frame a is deformed from the door end side toward the suspension base side due to an earthquake or the like, the door end side upper end of the door b is lifted by the upper dust size L, and the upper frame It hits the inside of d from below.

[0003]

In a conventional door frame, particularly a steel door, the upper frame d and the hanging side and the door end side vertical frames e and f are completely integrated by welding, and anchor metal fittings are used. It is integrally fixed to the wall opening h by g. Therefore, when the upper end of the door b on the door tip side pushes up the upper frame d from the lower side as described above, the upper end of the door tip side is pressed against the upper frame d fixed to the wall opening h with a large force, and the door b is opened. It becomes impossible to open and the evacuation route cannot be secured. The subject of the present application is that the upper frame moves upward when the door frame is deformed from the door tip side toward the hanging side due to an earthquake and the upper end of the door tip side pushes up the upper frame of the door frame from below. The upper end of the door is prevented from being pressed firmly against the upper frame by allowing it to escape, and the door can be opened. In addition, in Japanese Patent Laid-Open No. 9-13831, when the door frame is crushed inward, the door is crushed inward so that the door is crushed inward. The structure is such that each frame slides inward in the longitudinal direction, but as in the present application, the door frame is deformed from the door tip side toward the hanging side and the door tip side of the door is deformed. It does not assume that the upper end pushes up the upper frame of the door frame from below.

[0004]

In order to solve the above problems, in the present application, a door frame having an upper frame, a hanging-side vertical frame, and a door-end-side vertical frame is attached to a wall opening to suspend the door frame. In a door device in which a hanging side portion of a door is attached to a main vertical frame so as to be openable and closable through a hinge or a pivot hinge, an upper frame of the door frame is attached to a wall opening so as to be movable in a plane, and the door end side vertical The frame is divided into two parts, an upper vertical frame and a lower vertical frame, and the upper vertical frame is integrally joined to the upper frame, and one of the upper and lower vertical frames is integrally provided with a joining piece. Is vertically movably fitted in the other vertical frame, and the joining piece and the other vertical frame are integrated by a joining member that breaks by a predetermined breaking force that pulls the upper vertical frame upward. . Alternatively, a door frame having an upper frame, a hanging side vertical frame, and a door tip side vertical frame is attached to a wall opening, and the hanging side of the door is hinged or pivoted to the hanging side of the door frame. In a door device that is openably and closably attached via a hinge, an upper frame of the door frame is attached to a wall opening so as to be movable in-plane, and a discontinuous cut perpendicular to the longitudinal direction is made in a longitudinal middle portion of the vertical frame of the door end side. Then, the upper vertical frame and the lower vertical frame are connected to each other by the connecting portion between the notches, and the upper vertical frame is integrally joined to the upper frame, and one of the upper and lower vertical frames is joined with a joining piece. Is integrally fitted to the other vertical frame so as to be movable in the vertical direction, and the connecting portion has a strength to be broken by a predetermined breaking force for pulling the upper vertical frame upward. According to this, the door frame is deformed from the door end side toward the hanging base side, and the door end side upper end of the door pushes up the upper frame of the door frame from below, and the pushing-up force at that time is generated by the connecting member or the connecting portion. When the breaking force is exceeded, the joining member (joining portion) is broken and the upper vertical frame is separated upward from the lower vertical frame. as a result,
The upper end of the door is not pressed firmly against the upper frame, and the door can be opened. Here, the strength of the connecting member or the connecting portion is determined by assembling the upper frame, the hanging base, and the vertical frames on the door end side to form a door frame, and when the door frame is transported or used in a normal state. It is designed to withstand a load that does not break and is set so that it will not break even during the mounting work for mounting the door frame to the wall opening. The joining piece is fitted so as to slide along the back surface of the other vertical frame, and the door-end-side vertical frame is located at a position close to the joint with the upper frame and the upper vertical frame and the lower vertical frame. It is divided into and.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a door frame 1 made of steel is constituted by a suspension-side vertical frame 2, a door-end-side vertical frame 3 and an upper frame 4. The upper end of the suspension-side vertical frame 2 is orthogonally joined to the suspension-side end of the upper frame 4 and welded together. The door-end-side vertical frame 3 has a cross-sectional shape shown in FIG. 4, and the hanging-side vertical frame 2 has a symmetrical shape. The door end side vertical frame 3 is divided into upper and lower vertical frames 5 and 6 at a portion near the upper end. The upper end of the upper vertical frame 5 is joined orthogonally to the door end side end of the upper frame 4 and welded together. As shown in FIGS. 2 and 4, the rear surface side (concrete wall side) of the upper vertical frame 5 has a predetermined vertical (longitudinal) length, and its cross-sectional shape follows the curved shape of the rear surface of the upper vertical frame 5. The upper part 7a of the joining piece 7 is fitted and integrally welded to the upper vertical frame 5.

The lower portion 7b of the joining piece 7 is fitted in the lower vertical frame 6 so as to be vertically slidable along the back surface of the lower vertical frame 6, and near the lower end thereof, the lower vertical frame 7b. 6 and a horizontal screw (coupling member) 8. The screw 8 has such strength that it breaks when a predetermined vertical shearing force is applied. The allowable shearing force is such that when the upper frame 4, the suspension base, and the vertical frames 2 and 3 on the door end side are assembled to form the door frame 1, and the door frame is transported or used in a normal state, It is designed to withstand a load that does not break, and will not break during the installation work that attaches the door frame to the wall opening.
When an abnormal and excessive predetermined external force (breaking force) such that the door end side of 0 is lifted and the upper frame 4 is pushed up, it is set to break.

The door frame 1 is attached to the wall opening 10. At this time, the lower vertical frame 6 of the door end side vertical frame 3 is the anchor metal fitting 12 welded to the attachment piece 11 of the lower vertical frame 6 and the welded reinforcing bar 13 welded to the anchor metal fitting 12 as in the conventional case. And are attached integrally with the concrete wall 14. Further, the hanging-side vertical frame 2 is also integrally attached to the hanging-side wall 14 by the anchor metal fittings 12 and the welded reinforcing bar 13 as described above.

On the other hand, the upper frame 4 integrally provided with the upper vertical frame 5
Is attached to the wall opening 10 via a fitting 20 so that it can be displaced in-plane with respect to the wall opening 10. The fitting 20 has a short width with respect to the longitudinal direction of the upper frame 4 as shown in FIG. 5 at one end (the opposite side is symmetrical to this), and both sides in the in-plane deformation direction in the prospective direction ( The attachment piece 21 is formed by bending it at right angles to the vertical direction), and the attachment piece 21 is formed with an elongated hole 22 in the vertical direction. Upper frame 4
Is provided with a vertical piece 4a attached to the outer side surface of the attachment piece 21 in the prospective direction over the entire length of the upper frame 4, and the portion corresponding to the attachment piece 21 has a long hole in the longitudinal direction of the upper frame 4. 23 is formed. The attachment piece 2
A plate-shaped sliding member 24 is attached to the outer side surface in the prospective direction of 1, and a rivet 25 is inserted from the outside of the vertical piece 4a so as to sandwich the sliding member 24 and penetrate the two long holes 22 and 23 to attach the mounting piece. It is crimped inside 21. The degree of crimping by the rivets 25 is such that the upper frame 4 can slide upward when an excessive external force acts due to deformation such that the door 40 pushes up the upper frame 4 during an earthquake. With this structure, in which the rivet 25 is inserted into the vertical slot 22 and the horizontal slot 23,
The upper frame 4 can be displaced in any direction within the plane of the door frame 1.

As shown in FIG. 3, between the upper frame 4 thus mounted in the wall opening 10 and the concrete wall 14, the inner side surface of the upper frame 4 has an expected width extending between the mounting pieces 21 of the mounting bracket 20. The mortar 26 is filled with a space between the back surface and the mortar 26, and the space between the mortar 26 and the inner surface of the upper frame 4 has the above-described mounting metal fitting when the upper frame 4 is pushed upward. In-frame filling material 2 such as urethane foam that is easily deformed to allow upward displacement by 20
7 is interposed. Further, the upper wall 4 b extending horizontally from the vertical piece 4 a of the upper frame 4 outward in the prospective direction and the opening 29 of the finishing material 28 attached to the front and rear surfaces of the concrete wall 14.
A sealing material 30 which is easily elastically deformed is filled between the and, and likewise, when the upper frame 4 is pushed upward, upward displacement by the fitting 20 is allowed. A step portion 31 is provided on the inner side of the opening 29 in the prospective direction, and when the mounting fitting 20 is displaced upward, the vertical wall 4 a
I try not to interfere with.

The concrete wall 14 and the upper frame 4 are also provided between the concrete wall 14 and the suspension-side vertical frame 2 and the door-end-side vertical frame 3.
In the same form as the space, a mortar 26 that is integral with the concrete wall 14 and an easily deformable frame filler (foam urethane) 27 between the mortar 26 and the vertical frames 2 and 3 are filled. In the door end side vertical frame 3, the filling material 27 in the frame is filled between the mortar 26 and the back surface of the joining piece 7 in the joining piece 7 portion (FIG. 4), and in the other portion, the upper frame 4 portion. Similarly, the space between the mortar 26 and the back surface of the vertical frame 3 is filled. A sealing material 30 similar to the upper frame 4 is also provided between the vertical frames 2 and 3 and the opening 29 of the finishing material 28.
The door 40 is connected to the hanging-side vertical frame 2 so as to be openable and closable by hinges 41 at upper and lower portions of the hanging side. Hinge 41
Alternatively, the door 40 may be hinged with a well-known pivot hinge.

According to this structure, there is no deformation in FIG.
From this state, when the door frame 1 is deformed from the door end side to the suspension base side due to an earthquake, the door tip side of the door 40 is lifted upward due to the deformation and abuts against the upper frame 4 from the lower side. When this pushing-up force exceeds the allowable shearing force of the screw 8, the screw 8 connecting the lower vertical frame 6 and the joining piece lower portion 7b is broken. Then, the upper frame 4 is pushed up by the pushing force of the door 40, and the upper frame 4 is moved upward while the rivet 25 is guided along the vertical long hole 22 while compressing the in-frame filling material 27 and the sealing material 30. On the other hand, the upper vertical frame 5 moves upward by the movement of the upper frame 4, and the joining piece 7 integrated with the upper frame 4 is moved to the lower vertical frame 6 fixed to the wall opening 10. The lower portion 7b slides upward with respect to the lower vertical frame 6 while deforming the corresponding frame filling material 27 and the like (FIG. 6). Even if the lower portion 7b is slid, the state in which the lower portion 7b is fitted in the lower vertical frame 6 is maintained. Therefore, even if the upper and lower vertical frames 5 and 6 are vertically separated in this manner, the phase inside and outside the room is shifted. There is no such thing. Door 40
The upper end of the upper frame 4 is configured to escape upward by pushing up the upper part of the door, so that the upper end of the door is prevented from being pressed firmly against the upper frame 4, and the door frame is damaged by the earthquake. Even if 1 is deformed, the door 40 can be opened to secure the passage.

In the above embodiment, the case where the wall structure is the so-called wet wall, which is the concrete wall 14, has been described, but the present invention is not limited to this, and the dry type wall 14a shown in FIG.
It can be applied even when the door device is attached to the wall opening 10 of. In the case of the dry wall 14a, the back side of the upper frame 4 is not filled with anything, and the sealing material is only applied between the openings of the finishing wall 28a.

Next, referring to FIG. 8, another connecting structure of the upper vertical frame 5 and the lower vertical frame 6 of the door end side vertical frame 3 will be described. In FIG. 8, the upper part of the door end side vertical frame 3 is shown. Door end side vertical frame 3
Has a plurality of cuts 50 discontinuously in the same horizontal plane in the longitudinal middle portion near the upper end thereof. The cut 50 is, for example, formed by laser processing and is an extremely thin slit. Between the notches 50 adjacent to each other, the wall of the door-side vertical frame 3 is left with a small size, and the upper vertical frame 5 and the lower vertical frame 6 are connected by some of these connecting portions 8a. Like the connecting member 8 described in the first embodiment, the strength of this connecting portion 8a does not break during normal transportation, construction on a building, use, etc. The strength is set so that the upper vertical frame 5 is broken only when it is pulled upward by a pulling force. In this embodiment, the lower portion 7b of the joining piece 7 is integrally welded to the lower vertical frame 6 and the upper portion 7
a is fitted along the back surface of the upper vertical frame 5 so as to be vertically movable. In addition, the upper end of the upper vertical frame 5 is integrally welded to an upper frame (not shown in FIG. 8), the upper frame is attached so as to be displaced in-plane with respect to the wall opening, and the like.
The other structure is the same as that of the first embodiment. In this configuration, when the upper frame is lifted by the upper part of the door tip portion of the door during an earthquake, the connecting portion 8a is cut off by the excessive load as shown in FIG. The lower vertical frame 6 is separated into upper and lower parts so that the upper frame can escape upward.

[0014]

As described above, according to the present invention, when the door frame is deformed from the door end side toward the hanging side and the door end side upper end of the door pushes up the upper frame of the door frame from below. Since the upper vertical frame of the door-side vertical frame is separated upward from the lower vertical frame to allow the upper frame to escape upward, the door-side upper end of the door may be pressed firmly against the upper frame. You can open the door and secure the evacuation route.

[Brief description of drawings]

FIG. 1 is a front view of a door device according to the present invention, in which a sealing material is omitted.

FIG. 2 is an enlarged front view of a front portion of a door frame.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is an exploded perspective view of an upper frame and a fitting.

FIG. 6 is an enlarged front view of a door tip portion when the door frame is deformed.

FIG. 7 is another embodiment.

FIG. 8 is another embodiment.

FIG. 9 is a conventional technique.

[Explanation of symbols]

1 door frame 2 Hanging side vertical frame 3 Door side vertical frame 4 Upper frame 5 Upper vertical frame 6 lower vertical frame 7 joining pieces 8 screws (coupling members) 8a connecting part 10 wall openings 40 doors 41 Hinge 50 cuts

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[Procedure amendment]

[Submission date] December 13, 2001 (2001.12.
13)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Title of invention

[Correction method] Change

[Correction content]

Title of the invention Frame structure of door device

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

Claims (4)

[Claims] 1. A door frame having an upper frame, a hanging-side vertical frame, and a door-end-side vertical frame is attached to a wall opening, and the hanging-source-side portion of the door is attached to the hanging-source-side vertical frame of the door frame. In a door device that is openably and closably attached via a hinge or a pivot hinge, an upper frame of the door frame is attached to a wall opening so as to be movable in-plane, and the vertical frame of the door end side is placed above and below the upper vertical frame and the lower vertical frame. It is divided into two bodies and the upper vertical frame is integrally joined with the upper frame, and one of the upper and lower vertical frames is integrally provided with a joining piece, and is vertically movably fitted into the other vertical frame. , The joining piece and the other vertical frame,
A frame structure for a door device, characterized in that the upper vertical frame is integrally formed with a connecting member that is broken by a predetermined breaking force that pulls the upper vertical frame upward. 2. A door frame having an upper frame, a hanging-side vertical frame, and a door-end-side vertical frame is attached to a wall opening, and the hanging-source-side portion of the door is attached to the hanging-source-side vertical frame of the door frame. In a door device that is openably and closably attached via a hinge or a pivot hinge, an upper frame of the door frame is attached to a wall opening so as to be movable in a plane, and a discontinuous state orthogonal to a longitudinal direction is formed in a longitudinal middle portion of the door end side vertical frame. Make a notch, and join the upper and lower vertical frames together with the upper and lower vertical frames connected by the connecting part between the notches, and then connect them to one of the upper and lower vertical frames. Is equipped with a joining piece integrally and movably fitted in the other vertical frame in the vertical direction, and the connecting portion has a strength to be broken by a predetermined breaking force for pulling the upper vertical frame upward. Door device frame structure. 3. The door device according to claim 1, wherein the joining piece is fitted so as to slide along the back surface of the other vertical frame. 4. The door device according to claim 3, wherein the door-side vertical frame is divided into an upper vertical frame and a lower vertical frame at a position near a joint with the upper frame.