JP6005345B2 - Double doors considering large external force - Google Patents

Description

  The present invention relates to a double door provided with a structure capable of withstanding a large external force, which is preferably installed in an opening for a building.

  The double door provided in the opening of a large building such as a power plant building is provided with a large double door that matches the large opening.

  However, like a double door provided in a large opening, if the area of the door is large, the door body cannot respond to a large force such as a tsunami, which may cause damage to the door and prevent water from entering. There is a problem that you can not.

  For this problem, the technology that improves the pressure resistance performance of the door by adopting a structure that increases the pressure resistance strength of the door itself or by devising the opening / closing mechanism or opening / closing structure of the double door is disclosed in Prior Art Document 1, 2 etc. are proposed.

  However, each technique has a problem that the structure of the door is complicated, and that it is difficult or practically not applicable to an existing door.

JP-A-9-13832 Japanese Patent No. 4523125

  Therefore, in the present invention, the double door provided in the opening of the building has a structure that can withstand a strong pressure such as a tsunami without complicating the internal structure of the door body. It is an object of the present invention to provide a double door with a structure corresponding to a large external force that can be applied.

The double door structure of the present invention that can cope with a large external pressure made for the purpose of solving the above problems is a double door with a structure for pressure resistance inside the door body installed at the opening of the building. , Rutotomoni provided horizontal ribs Tobirasotogawa outside the outer surface of the two open doors, the door inner horizontal rib at a position close to the rotary shaft including an inner of an outer surface hinges of the casement door provided to close The force from the outside of the door applied to the door is transmitted through the door including the horizontal rib on the outside of the door from the horizontal rib on the inside of the door to the building housing to which the door is attached. .

  In the present invention, a plurality of the horizontal ribs are provided in a posture parallel to the vertical direction of the door. In this case, the horizontal rib on the outside (outside of the door) of the door is provided with a rib having a length substantially the same as the left and right width of the left and right doors. It is sufficient to provide a short rib on the side close to the opening / closing axis including the door hinge. This does not exclude the fact that the horizontal rib provided on the inner side (inside the room) of the door is a long rib similar to the rib provided on the outer side of the door.

  Here, the horizontal rib is tapered in the front-rear width (shape) as viewed from the plane in the left-right direction of the door, and the tapered horizontal rib on the outside of the door is hinged from the mating side of the left and right doors. It is the shape where the width | variety seen from the plane toward the side becomes narrow. However, the horizontal rib inside the door is reversely tapered unlike the rib outside the door.

  The horizontal rib is provided with a reinforcing rib in a vertical posture. Furthermore, it is preferable that the plurality of horizontal ribs are provided with the lower half space being narrower than the upper half space of the door. This is because when water pressure is applied to the door, the water pressure is higher in the deeper water (lower half of the door) than in the shallower water.

According to the present invention, in a double door installed at an opening of a building, horizontal ribs are provided on the surfaces of the two doors, and external pressure applied to the closed door is transmitted to the building housing to which the door is attached through the door. Therefore, even if a strong pressure due to a tsunami or the like is applied to the door, the pressure can be efficiently released from the horizontal rib inside the door to the housing side while being distributed and supported by the horizontal rib outside the door.
Thereby, it is possible to effectively prevent the door from being damaged by a strong pressure caused by a tsunami or the like applied to the door.

  The horizontal ribs that demonstrate the above effects can be realized if they are provided on the surface of the double doors (outdoors and indoors), so it can be applied to new double doors as well as existing double doors easily. It is convenient because it can be applied.

The front view of an example of this invention double door. The top view of this invention double door of FIG. The top view of the state which opened the double door of FIG. 1, FIG. The top view which showed typically the action state of force when pressure, such as a hydraulic pressure, was applied to the present invention double door of FIG. 2 from the outside (outdoor). The enlarged plan view of the principal part of FIG.

Next, an embodiment of the double door of the present invention will be described with reference to the drawings.
1 to 4, reference numeral 1 denotes an opening provided in a wall or the like (hereinafter referred to as a casing) of a building (the whole figure is not shown), and reference numerals 2 and 3 denote left and right openings in the opening 1. It is a vertical frame part. Here, left and right hinges 6 and 7 are provided in the left and right vertical frame portions 2 and 3 to support the left and right doors 4 and 5 so as to be openable and closable with respect to the opening. In the figure, reference numerals 6a and 7a denote the rotation shafts of the hinges 6 and 7, respectively, which also serve as coupling members for the housing-side fixed portions 6b and 7b and the door-side movable portions 6c and 7c. .

  The left and right doors 4 and 5 have rotating shafts 6a and 7a connected to the fixed parts 6b and 7b on the housing side in the movable parts 6c and 7c of the upper and lower hinges 6 and 7 provided on the upper and lower edges of the doors, respectively. It is installed as a double door that can be opened in the left-right direction with respect to the opening 1 (see FIG. 3).

  In the present invention, since the double door provided in the above-described manner is provided with a structure for dealing with a large external force (water pressure due to tsunami, wind pressure due to typhoon, etc.), it will be described below with reference to the drawings. In the following description, in FIGS. 1, 2, and 4, the upper side of the drawing in the opening 1 is the indoor side (the doors 4 and 5 are referred to as the inside of the door), and the lower side of the drawing is the outdoor side (the doors 4 and 5. Then, it is called the outside of the door).

  In the figure, 8 and 9 are horizontal ribs provided on the outside of the doors 4 and 5, and four ribs are provided in the example in the figure, but the number of ribs to be provided is arbitrary depending on the size of the doors 4 and 5. Can be set.

  The four horizontal ribs 8 and 9 provided on the doors 4 and 5 are provided in a parallel posture. The horizontal ribs 8 and 9 are arranged so that the interval between the upper and lower ribs 8 and 9 is wide on the upper half side of the doors 4 and 5 and the interval between the upper and lower ribs 8 and 9 is narrower on the lower half side of the door. ing. When water pressure due to tsunami is applied to the doors 4 and 5, since the water pressure applied to the deep water position, that is, the lower half side of the doors 4 and 5 is higher than the upper half side, to cope with this pressure difference, The vertical pitch of the horizontal rib is changed.

  The horizontal ribs 8 and 9 are provided with a plurality of vertical reinforcing ribs 8a and 9a at appropriate intervals in the length direction of the ribs.

The horizontal ribs 10 and 11 inside the doors are attached to the insides of the doors 4 and 5 and close to the hinges 6 and 7, respectively. The horizontal ribs 10 and 11 on the inner side of the door are formed of a substantially triangular or trapezoidal plate material when viewed from above, and the bottom side (the left and right outer ends in FIG. 2) of each rib 10 and 11 is vertically reinforced. Ribs 10a and 11a are provided.
Here, the horizontal ribs 10 and 11 on the inner side of the door also have the same interval as the arrangement interval of the upper and lower sides of the horizontal ribs 8 and 9 in the height direction of the doors 4 and 5 like the horizontal ribs 8 and 9 on the outer side of the door. Is provided.

  The double doors 4 and 5 provided with the horizontal ribs 8 and 9 on the inner and outer surfaces of the doors 4 and 5 are shown in FIG. 1 when viewed from the front in a closed state, and as viewed from the plane. Each is as shown in FIG. The figure seen from the plane with the doors 4 and 5 open is as illustrated in FIG.

  When the doors 4 and 5 are closed on the double doors of the present invention set as described above, when an external force such as water pressure is applied to the outside of the doors 4 and 5 in FIG. 5 is subjected to the force of water pressure toward the indoor side and is pushed into the indoor side with the hinges 6 and 7 as axes, and is adjusted.

  At this time, the reinforcing ribs 8a and 9a provided at the facing ends of the horizontal ribs 8 and 9 on the outer side of the door in accordance with the posture change of the doors 4 and 5 have strong lower ends in FIG. 5 of the ribs 8a and 9a. By abutting, the external force acting perpendicularly to the door surface on the outside of the doors 4 and 5 is changed in the horizontal direction (see the horizontal arrow in FIG. 5). Since the direction-changed force is transmitted to the horizontal ribs 8 and 9 and supported by the ribs 8 and 9, the external force applied perpendicularly to the surfaces of the doors 4 and 5 is distributed to the horizontal ribs. Damage due to external force that the doors 4 and 5 will receive can be reduced.

  On the other hand, the external force acting as a turning force on the doors 4 and 5 via the shafts 6a and 7a of the hinges 6 and 7 is a vertical frame of the opening 1 via the reinforcing ribs 10a and 11a of the horizontal ribs 10 and 11 inside the door. Since it is efficiently transmitted to the parts 2 and 3, the damage received by the hinges 6 and 7 due to external force can be reduced.

  As described above, the external force applied perpendicularly to the surfaces of the doors 4 and 5 can be redirected by the horizontal ribs 8, 9, 10 and 11, and can be efficiently transmitted to the housing through the doors. The door will not be damaged by water pressure.

  Since the horizontal ribs 8, 9, 10 and 11 in the double doors of the present invention can be attached to the outer surfaces (indoors and outdoor sides) of the doors 4 and 5 by retrofitting, they can be easily attached to existing double doors. Therefore, it is suitable for remodeling existing double doors for tsunami countermeasures.

1 Opening 2 and 3 of building Vertical frame 4 and 5 of opening 1 Left and right doors (double doors)
6,7 Door hinges 8,9 Horizontal ribs 10,11 Horizontal ribs inside the door

Claims (4)

In the structure casement door having a for internal pressure strength of the door body is installed in the opening of the building, Rutotomoni provided horizontal ribs Tobirasotogawa outside the outer surface of the both opening doors, the casement door A horizontal rib on the inner side of the door is provided at a position close to the rotation axis including the hinge on the inner outer surface of the door, and the force from the outside of the door applied to the closed door is passed through the door including the horizontal rib on the outer side of the door. A double door that takes into account a large external force, characterized in that it is transmitted from the horizontal rib of the building to the building housing to which the door is attached. A plurality of horizontal ribs on the outside of the door are provided in the vertical direction of the door, and reinforcing ribs are provided at positions where the ends of the horizontal ribs and the doors face each other, and the force transmitted from the reinforcing rib to the horizontal ribs on the outside of the door. The double door considering a large external force according to claim 1, wherein the door includes a horizontal rib on the outer side of the door and transmits the reinforcing rib and the horizontal rib on the inner side of the door to the building frame to which the door is attached. Abutment of the abutting face of the casement doors and between, depending on contact between the door and the building skeleton, closed the force from the door outer exerted to the door, according to claim 1 or 2 to tell the building skeleton Double doors that take into account large external forces. In double doors with a structure for pressure resistance inside the door body installed at the opening of the building, the horizontal ribs on the outside of the door provided on the outer surface of the door are both left and right doors. a rib having a length in the horizontal width substantially the same width, the horizontal rib of the door inner provided inside the outer surface of the door is short length of the rib is provided at the position close to the rotary axis including a door hinge, A large external force applied to the closed door by transmitting the force from the outside of the door through the door including the horizontal rib on the outside of the door from the horizontal rib on the inside of the door to the building frame to which the door is attached. Double doors that take into account.

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