JP7102690B2 - Door structure - Google Patents

Description

The present invention relates to a door structure including a rotatably supported door.

As a door structure including a door that is rotatably supported, for example, a door structure in which a door body (door) is rotatably attached to a door mounting frame by a pivot hinge is known (for example, a patent). Reference 1). Further, as a door to be attached, for example, a door in which a metal surface material having peripheral ends extending to faces each other is adhered to the front and back surfaces of a core material such as a paper honeycomb is known. There is.

Japanese Unexamined Patent Publication No. 8-21014

When the upper and lower ends of the door, in which metal surface materials are adhered to the front and back surfaces of the core material as described above, are supported by the pivot hinges, for example, when the door is heated by a fire or the like, it becomes the surface material. While heat elongation occurs, the upper end and lower end of the door are regulated by the pivot hinge, so that the surface material is warped so that the central portion in the vertical direction bulges outward in the out-of-plane direction. When the surface material is warped, the space between the two surface materials is widened and the core material is burned by the flame that invades through the gap, or the core material is separated by a door through the space created by the warp of the surface material. There is a risk that the space on the side and the space on the other side will communicate with each other.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a door structure in which the distance between two surface materials is difficult to open.

In order to achieve such an object, the door structure of the present invention is:
Doors that can close the opening, and
A support member that rotatably supports the door at the upper and lower ends of the door.
Have,
The door is
It comprises two surface materials that face each other at a distance and each peripheral end has a peripheral wall portion extending to the side facing each other.
The two surface materials are connected by a connecting member in which the tips of the peripheral wall portions are butted against each other and fixed across the adjacent peripheral end wall portions.
The connecting member is a rectangular flat plate, and has a door structure characterized in that it is provided on the outside of the peripheral wall portion and on the side surface of the door on the door end side.

According to such a door structure, in the two surface materials in which the tips of the peripheral end wall portions are butted against each other, since the adjacent peripheral end wall portions are connected by a connecting member, it is assumed that heat elongation occurs in each of the surface materials. Also, it is possible to suppress the gap between the two surface materials.

With such a door structure
It is desirable that the connecting member is provided on the side surface of the door.

Due to the aspect ratio of the door, the amount of thermal expansion in the door is larger in the height direction than in the width direction. Therefore, when the side surfaces of the door are connected by the connecting member as in the door structure, it is possible to more effectively suppress the gap between the two surface materials on the side surface of the door.

With such a door structure
It is desirable that the connecting member is provided on the side surface of the door on the hanging side.

On the hanging side where the upper end and the lower end are regulated by the support member, the distance between the two surface materials tends to open on the side surface of the door when heat elongation occurs in the height direction. According to the door structure, since the hanging source side is connected by the connecting member, it is possible to suppress the gap between the two surface materials even on the hanging source side.

Doors that can close the opening, and
A support member that rotatably supports the door at the upper and lower ends of the door on the hanging side of the door.
Have,
The door is
It comprises two surface materials that face each other at a distance and each peripheral end has a peripheral wall portion extending to the side facing each other.
The peripheral end of the surface material is bent in an L shape instead of a substantially U shape.
The two surface materials are connected by a connecting member in which the tips of the peripheral wall portions are butted against each other and fixed across the adjacent peripheral end wall portions.
The connecting member is provided on the side surface of the door on the hanging side.
The connecting member provided on the hanging side has a protrusion protruding to the side opposite to the door.
The connecting member is not a member that rotatably supports the door, but
The connecting member is screwed to each of the peripheral wall portions.
The door structure may be characterized in that the protrusion is inserted into an insertion hole provided in a structure in which the door is supported with the door closed.

According to such a door structure, since the protrusion of the connecting member on the hanging side of the door is inserted into the insertion hole provided in the structure, the door supporting the upper end and the lower end is in the height direction. Even when the heat of the door is extended and the central side in the height direction of the door bulges in the out-of-plane direction, the protrusion inserted in the insertion hole restricts the movement in the out-of-plane direction and prevents the door from warping. It is possible to do.

With such a door structure
A latch mechanism is provided on the door end side of the door so that it can be disengaged and the door is kept closed.
It is desirable that the two surface materials are joined via the latch mechanism, and at least one of the above and below the latch mechanism is connected by the connecting member.

When two surface materials are joined via a latch mechanism on the door end side of the door, when heat elongation occurs, the upper end side and the lower end side are more likely to be spaced apart. Therefore, according to the door structure in which at least one of the upper and lower parts of the latch mechanism is connected by the connecting member, the door is located on the side of the upper side and the lower side of the latch mechanism where the connecting member is provided. It is possible to suppress the gap between the two surface materials on the front side.

With such a door structure
The surface material is preferably made of steel having a thickness of less than 0.8 mm.

According to such a door structure, even if the door is a non-combustible door, it is possible to provide higher fire resistance.

According to the present invention, it is possible to provide a door structure in which the distance between the two surface materials is difficult to open.

It is a front view which shows the door structure which concerns on this embodiment. It is a vertical cross-sectional view which shows the door structure which concerns on this embodiment. It is a cross-sectional view which shows the door structure which concerns on this embodiment. It is a perspective view which shows the appearance of a door. It is a perspective view which shows the structure of a door. It is a perspective view which shows the connecting member on the door end side. It is a perspective view which shows the connecting member on the hanging side.

Hereinafter, embodiments of the door structure will be described in detail with reference to the drawings.

As shown in FIG. 1, the door structure of the present embodiment includes a metal frame 1 and a door 2 that is openably and closably provided in an opening 5 formed by the frame 1 and the floor 4. The door 2 is rotatably supported by the frame 1 and the floor 4 as a structure by a pivot hinge 3 as a support member.

As shown in FIGS. 2 and 3, for example, the frame body 1 is formed of a metal frame member having an L-shaped cross section and made of steel or the like, and is erected on the floor 4 at a distance from each other in the horizontal direction. The two vertical frame members and the horizontal frame member bridged between the upper ends of the two vertical frame members are joined to form the two vertical frame members. The rectangular opening 5 formed by the frame 1 together with the floor 4 can be closed by the rotatably supported door 2.

The frame body 1 projects from the outer peripheral portion 6 facing the upper surface and both side surfaces of the closed door 2 and the outer peripheral portion 6 inward where the door 2 is provided, and the peripheral end portion of one surface of the closed door 2 is in contact with the frame body 1. It has an inwardly projecting portion 7 that is in contact with it. In FIGS. 2 and 3, the door 2 is shown away from the inner protruding portion 7 of the frame body 1 in order to clarify the configuration, but the door 2 is closed and one surface of the door 2 is closed. Abuts on the inner protrusion 7.

As shown in FIGS. 1 to 5, the door 2 has a core material 8 such as a paper honeycomb forming a rectangular panel, two steel surface materials 9 bonded to both sides of the core material 8, and a frame. A latch mechanism 22 that is releasably engaged with the body 1 to maintain the closed state of the door 2, a door knob 24 for disengaging the latch mechanism 22, and a connecting member 25 that connects the two surface materials 9 and is made of steel plate. And have. The door 2 of the present embodiment is not a fire door provided in an opening such as a fire compartment, but a so-called non-combustible door made of a non-combustible material, and the thickness of the surface material 9 adhered to both sides is less than 0.8 mm. Is.

The two surface materials 9 face each other at a distance from each other, and a peripheral end wall portion 26 is provided so that the peripheral end portions thereof extend to the side facing each other, and the peripheral end wall portions 26 are connected in the circumferential direction. The peripheral end wall portions 26 of the two surface materials 9 are such that the tips 10 of each other are abutted against each other, and the core material 8 is housed in the space formed inside, and the entire circumference of the core material 8 is covered by the two surface materials 9. It has been.

The latch mechanism 22 is provided on the door end side of the door 2 and on the center side in the height direction of the door 2. The latch mechanism 22 is housed in a casing 27 through which the shaft portion 29 of the doorknob 24 is penetrated, and the casing 27 is arranged in the notched space of the core material 8 and is arranged on the two surface materials 9 together with the core material 8. It is glued. A latch bolt 28 is immersively projected from the door end side of the casing 27, and the latch bolt 28 is immersive by operating the door knob 24. The protruding latch bolt 28 is locked to the locking portion 30 provided on the vertical frame member on the door end side of the frame body 1 to maintain the closed state of the door 2.

The doorknobs 24 are provided on both sides of the door 2, and the shaft portion 29 protruding from the doorknob 24 on one side penetrates the surface material 9 and the latch mechanism 22 and is fixed to the doorknob 24 on the other side. The door knobs 24 provided on both sides of the door 2 are provided so as to be able to immerse the latch bolt 28 in the casing 27 by rotating while sandwiching the surface material 9 and the latch mechanism 22. That is, the two surface materials 9 are arranged via the latch mechanism 22 and adhered to the casing 27 of the latch mechanism 22 and are sandwiched and joined by the door knob 24.

The connecting member 25 is a rectangular steel plate, which is a side surface 32 on the door end side of the side surface 32 in the width direction of the door 2, which is above and below the latch mechanism 22 at the upper and lower ends of the door 2. It is provided at three locations, that is, a portion on the vertical center side of the side surface 32 on the hanging source side. Here, the central side in the vertical direction is near the center in the vertical direction and may be the center, but it does not necessarily have to be the center.

As shown in FIG. 6, the rectangular connecting member 25 is arranged from one peripheral wall portion 26 to the other peripheral end wall portion 26 across a portion where the tips 10 of the peripheral end wall portions 26 of the two surface materials 9 are abutted. The two surface materials 9 are screwed to the peripheral wall portions 26, respectively.

As shown in FIG. 7, the connecting member 25 on the hanging side is provided with a protrusion 33 protruding to the opposite side of the door 2 at the center. The protrusion 33 is configured to be inserted into the insertion hole 34 provided in the vertical frame member on the hanging side of the frame body 1 with the door 2 closed. Therefore, in the closed door 2, the warp caused by the movement of the central portion in the vertical direction on the hanging side in the out-of-plane direction is suppressed.

As shown in FIGS. 1 to 3, the pivot hinge 3 has the upper end of the door 2 between the frame 1 and the door 2 on one end side (hanging source side) in the width direction of the door 2. The lower end of the door is supported between the floor 4 and the floor 4. The pivot hinge 3 has metal door-side members 11 and 12 provided on the door 2 side, respectively, and metal opening-side members 13 and 14 provided on the frame 1 side or the floor 4 side, respectively. The door side members 11 and 12 and the opening side members 13 and 14 are attached so as to project to the same side in the out-of-plane direction of the door 2.

The opening side member (hereinafter referred to as the lower opening side member) 13 attached to the floor 4 is, for example, at the lower pedestal portion 15 fixed to the floor 4 and having a flat upper surface and substantially in the center of the lower pedestal portion 15. It has a lower shaft portion 16 that is provided and projects upward along the vertical direction, and a thrust bearing 17 that is inserted through the lower shaft portion 16 and placed on the lower pedestal portion 15. In the thrust bearing 17, the housing raceway plate that is in contact with the upper surface of the lower pedestal portion 15 is fitted to the lower shaft portion 16, and the shaft raceway plate located on the housing raceway plate rotates around the lower shaft portion 16. It is provided so that it can move freely.

The door side member (hereinafter referred to as the lower door side member) 11 attached to the lower end of the door 2 is fixed to the door 2 and the lower surface is formed flat, and the lower shaft portion 16 is inserted substantially in the center of the lower insertion hole 18. Is provided. The door 2 is placed on the thrust bearing 17 by inserting the lower shaft portion 16 of the lower opening side member 13 into the lower insertion hole 18 of the lower door side member 11.

The door side member (hereinafter referred to as the upper door side member) 12 attached to the upper end of the door 2 is provided in the upper pedestal portion 19 fixed to the door 2 and having a flat upper surface and substantially in the center of the upper pedestal portion 19. It has an upper shaft portion 20 that projects upward along the vertical direction.

The opening side member (hereinafter referred to as the upper opening side member) 14 attached to the upper portion of the frame body 1 is fixed to the frame body 1 to form a flat lower surface, and the upper shaft portion 20 is inserted substantially in the center. An upper insertion hole 23 is provided. A bearing sleeve (not shown) through which, for example, the upper shaft portion 20 is inserted is fitted in the upper insertion hole 23 of the upper opening side member 14.

The door 2 attached to the frame 1 and the floor 4 is supported by the lower opening side member 13 via the thrust bearing 17, and is rotatable by the lower shaft portion 16 and the upper shaft portion 20, the thrust bearing 17, and the bearing sleeve. Is supported by.

According to the door structure of the present embodiment, the two surface materials 9 accommodating the core material 8 and having the tips 10 of the peripheral end wall portions 26 abutting each other are connected between the adjacent peripheral end wall portions 26 by a connecting member 25. Therefore, even if heat elongation occurs in each of the surface materials 9, it is possible to suppress the gap between the two surface materials 9 from being widened.

Further, the amount of thermal expansion in the door 2 is larger in the height direction than in the width direction due to the aspect ratio of the door 2. Therefore, when the side surface 32 in the width direction of the door 2 is connected by the connecting member 25 as in the door structure of the present embodiment, it is more effective that the space between the two surface materials 9 is opened on the side surface 32 of the door 2. It is possible to suppress it.

Further, on the hanging side where the upper end and the lower end are regulated by the pivot hinge 3, the distance between the two surface materials 9 is likely to open on the side surface 32 of the door 2 when heat elongation occurs in the height direction. According to the door structure of the above embodiment, since the hanging source side is connected by the connecting member 25, it is possible to suppress the gap between the two surface materials 9 even on the hanging source side.

Further, in the state where the door 2 is closed, the protrusion 33 of the connecting member 25 on the hanging side of the door 2 is inserted into the insertion hole 34 provided in the vertical frame member, so that the upper end and the lower end are supported. Even when the door 2 heats up in the height direction and the central side of the door 2 in the height direction bulges in the out-of-plane direction, the protrusion 33 inserted in the insertion hole 34 allows the door 2 to move in the out-of-plane direction. It is possible to prevent the door 2 from being warped due to regulation.

Further, in the door 2 in which the two surface materials 9 are joined to each other via the latch mechanism 22 on the door end side, when heat elongation occurs, the distance between the upper end side and the lower end side is more likely to open. Therefore, when the connecting member 25 is provided on the upper end side and the lower end side of the door 2 above and below the latch mechanism 22 as in the door structure of the present embodiment, the side on which the connecting member 25 is provided. In, it is possible to suppress the gap between the two surface materials 9 on the door end side.

Further, even if the door 2 is a non-combustible door provided with a steel surface material 9 having a thickness of less than 0.8 mm, it is possible to provide higher fire resistance. Further, heat elongation is more likely to occur in a non-combustible door having a thin plate thickness than in a fire door provided with a thick steel plate. It is more effective that they are connected by the connecting member 25 that is fixed.

In the above embodiment, an example in which the upper and lower ends of the peripheral end wall portion 26 are connected by the connecting member 25 on the side surface of the door 2 on the door end side has been described, but the present invention is not limited to this. For example, only the upper end or only the lower end may be connected by a connecting member. Further, on the side surface on the door end side, three or more places may be connected by a connecting member.

Further, in the above embodiment, an example in which the connecting member 25 is provided on the side surface 32 on the door end side of the door 2 has been described, but the connecting member 25 is provided on the upper surface and the lower surface if it is the end portion of the door 2 on the door end side. It doesn't matter.

In the above embodiment, an example in which the central side portion in the vertical direction of the peripheral end wall portion 26 forming the side surface 32 on the hanging source side of the door 2 is connected by the connecting member 25 has been described. When the provided pivot hinge 3 does not have a function of suppressing the gap between the two surface materials 9, not only the central portion but also one or both ends of the upper and lower ends. It is desirable to connect with the connecting member 25. In this case, the connecting members 25 provided at the upper and lower ends may not be provided with the protrusions 33.

In the present embodiment, an example will be described in which the lower shaft portion 16 projects upward from the lower pedestal portion 15 of the lower opening side member 13 and the upper shaft portion 20 projects upward to the upper pedestal portion 19 of the upper door side member 12. However, the present invention is not limited to this, and for example, the lower shaft portion may protrude downward from the lower door side member, and the upper shaft portion may protrude downward from the upper opening member.

In the above embodiment, an example of the pivot hinge 3 has been described as a support member that rotatably supports the door 2, but the present invention is not limited to this, and the door can be rotatably rotated at the upper and lower ends of the door. It does not matter if it is a supporting member that supports it.

As described above, the above-described embodiment is for facilitating the understanding of the present invention, and is not for limiting and interpreting the present invention. It goes without saying that the present invention can be modified and improved without departing from the spirit thereof, and the present invention includes an equivalent thereof.

1 frame (structure), 2 doors, 3 pivot hinges (support members), 4 floors, 5 openings,
6 Outer circumference, 7 Inner protrusion, 8 Core material, 9 Surface material, 10 Tip of peripheral wall part,
11 Lower door side member, 12 Upper door side member, 13 Lower opening side member, 14 Upper opening side member,
15 lower pedestal part, 16 lower shaft part, 17 thrust bearing, 18 lower insertion hole,
19 Upper pedestal, 20 Upper shaft, 22 Latch mechanism, 23 Upper insertion hole, 24 Doorknob,
25 connecting member, 26 peripheral wall part, 27 casing, 28 latch bolt, 29 shaft part,
30 locking part, 32 side surface, 33 protrusion, 34 insertion hole,

Claims (5)

Doors that can close the opening, and
A support member that rotatably supports the door at the upper and lower ends of the door.
Have,
The door is
It comprises two surface materials that face each other at a distance and each peripheral end has a peripheral wall portion extending to the side facing each other.
The two surface materials are connected by a connecting member in which the tips of the peripheral wall portions are butted against each other and fixed across the adjacent peripheral end wall portions.
The door structure is characterized in that the connecting member is a rectangular flat plate and is provided on the outside of the peripheral end wall portion and on the side surface of the door on the door end side. The door structure according to claim 1.
The door structure is characterized in that the connecting member is also provided on the side surface of the door on the hanging side. Doors that can close the opening, and
A support member that rotatably supports the door at the upper and lower ends of the door on the hanging side of the door.
Have,
The door is
It comprises two surface materials that face each other at a distance and each peripheral end has a peripheral wall portion extending to the side facing each other.
The peripheral end of the surface material is bent in an L shape instead of a substantially U shape.
The two surface materials are connected by a connecting member in which the tips of the peripheral wall portions are butted against each other and fixed across the adjacent peripheral end wall portions.
The connecting member is provided on the side surface of the door on the hanging side.
The connecting member provided on the hanging side has a protrusion protruding to the side opposite to the door.
The connecting member is not a member that rotatably supports the door, but
The connecting member is screwed to each of the peripheral wall portions.
A door structure characterized in that, in a state where the door is closed, the protrusion is inserted into an insertion hole provided in a structure in which the door is supported. The door structure according to any one of claims 1 to 3.
A latch mechanism is provided on the door end side of the door so that it can be disengaged and the door is kept closed.
A door structure characterized in that the two surface materials are joined via the latch mechanism, and at least one of the upper and lower parts of the latch mechanism is connected by the connecting member. The door structure according to any one of claims 1 to 4.
The surface material has a door structure characterized by being made of steel having a thickness of less than 0.8 mm.

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