JP2863881B2 - Door structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door structure for a hangar of an aircraft or the like and other warehouses, and more particularly to a door for supporting a wind load applied to the front of the door at an upper portion and a lower portion,
The present invention relates to a lightweight door structure.

[0002]

2. Description of the Related Art Doors of this kind are very large and heavy, and require a certain mechanical strength due to wind pressure. Due to these conditions, weight reduction is demanded.

A conventional door structure will be described with reference to FIGS. FIG. 3 is a front view of, for example, a door 1 for a hangar according to a conventional door structure, and FIG. 4 is a longitudinal sectional view of a main part of the door, which is partially omitted. The door 1 is attached to the door frame 2 and the door frame 2. having an outer panel 3 and lighting window 4 as an exterior plate member, the upper guide member 6 made of a pair of right and left upper guide roller 5, and a lower support traveling member 8 made of a pair of right and left support running wheels 7.

The upper guide member 6 is movable so that the upper guide roller 5 is engaged with a guide rail 9 provided horizontally above the entrance of a building such as a hangar, so that the door 1 can be opened and closed.

Similarly, the lower supporting traveling member 8 is capable of rolling its supporting traveling wheels 7 along a traveling path 10 provided horizontally below the entrance of the building, supporting the load of the door 1 and opening and closing the same. It is movable as follows.

The door frame 2 includes a horizontal main beam (an upper horizontal main beam 11 and a lower horizontal main beam 12), a pair of left and right vertical main columns 13, and an auxiliary member (a horizontal auxiliary beam 14).
And vertical auxiliary pillars 15).

The horizontal main beams 11, 12 and the vertical main columns 13 are made of a rigid H-section steel or any other material.

The horizontal auxiliary beam 14 and the vertical auxiliary column 15 are
These are provided as horizontal and vertical studs, and include horizontal main beams 11 and 12 and vertical main pillars 13.
And these are constituted by an H-shaped steel, a rib, an L-shaped angle and other arbitrary materials.

[0009] As shown in FIG.
The outer panel 3 or the lighting window 4 is attached to the front surface of the door frame 2 through the door 6.

The deflection of the outer panel 3 and the lighting window 4 due to the wind load is reduced by the upper horizontal main beam 11, the lower horizontal main beam 12, the vertical main column 13,
The horizontal auxiliary beam 14 and the vertical auxiliary column 15 are used to hold down.

In particular, as shown in FIG. 3, a horizontal breath 17 made of a wire or the like prevents deformation due to a lateral (in-plane) load, and a vertical breath 18 made of a wire or the like also causes downward deflection due to its own weight. Has been suppressed.

Upper guide roller 5 of upper guide member 6
Are arranged immediately near the left and right upper corners of the door frame 2, and the support traveling wheels 7 of the lower support traveling member 8 are arranged immediately near the left and right lower corners of the door frame 2.

In FIG. 3, each numerical value entered in the ellipse is the front-back direction of the door 1 due to the wind load for each main member (horizontal auxiliary beam 14) when the size of the door 1 is 1600 cm × 2400 cm. The maximum deflection amount (in the front and back direction) is shown, and other numerical values show the deflection amounts at main positions (unit: cm).

Although the door structure of the door 1 is a general structure type as this kind of surface pressure resistant structure, it is a heavy structure and is not always ideal in structural mechanics.

That is, in the conventional door 1, the pair of right and left vertical main columns 13 serves as the main columns, so that the distance between the vertical main columns 13 is increased. The deflections of the direction main beams 11, 12 and the horizontal auxiliary beam 14 are increased.

Therefore, the horizontal main beams 11, 12 and the horizontal auxiliary beams 14 are beams having a large cross section in order to obtain necessary rigidity, which is a factor of increasing the overall weight of the beam.

In addition, landfills are often used at aircraft airports in particular, and in order to suppress land subsidence, it is often required to reduce the weight of each facility, and it is necessary to reduce the weight of the large doors of the hangar. .

[0018]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and it is intended to maintain the mechanical strength of a door having a relatively large area, particularly, a wind load applied to a large flat surface thereof. It is an object to provide a door structure capable of reducing the weight of the entire door.

[0019]

That is, the present invention focuses on the relative arrangement of a horizontal main beam and a vertical main column which are main columns for maintaining the strength of the entire door. A door frame comprising a main pillar in the direction, an auxiliary member attached between the horizontal main beam and the vertical main pillar, an exterior plate material attached to the door frame, and a guide for guiding the door frame in the opening and closing direction. A door structure having an upper guide member and a lower support traveling member for supporting a load of the door frame and opening and closing the door frame along a predetermined traveling path, wherein the left and right ends of the horizontal main beam are provided. A door structure characterized in that the vertical main column is attached to a position closer to the center in the length direction of the part.

Further, the upper guide member can be attached at or near the attachment position of the vertical main column to the horizontal main beam.

Further, the lower support traveling member can be attached to a position where the vertical main column is attached to the horizontal main beam or in the vicinity thereof.

When the length of the main beam in the horizontal direction is 2H, and the length from the end of the main beam in the horizontal direction to the position where the main column in the vertical direction is attached is h, １ ／ <h / H <1/2.

[0023]

In the door structure according to the present invention, the left and right ends of the horizontal main beam are not formed as a conventional door frame having a rectangular main frame surrounding the periphery thereof by the horizontal main beam and the vertical main column. Since the vertical main pillar is attached to the position near the center in the length direction from, it is possible to support the necessary weight and eliminate the need for vertical breathing, etc.
The whole can be reduced in size and weight.

[0024]

Next, a door structure according to an embodiment of the present invention will be described with reference to FIGS. However, the same parts as those in FIGS. 3 and 4 are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 1 is a front view of a door 20 having the door structure, and includes left and right end portions 11 A of an upper horizontal main beam 11.
11B, left and right ends 12 of the lower horizontal main beam 12
Two vertical main pillars 13 are attached at positions closer to the center in the longitudinal direction from A and 12B.

The door frame 21 having the horizontal main beams 11 and 12, the vertical main column 13, and the auxiliary members (the horizontal auxiliary beam 14 and the vertical auxiliary column 15) has a basic structure, and the outer panel 3 and the lighting window 4 are provided. This basic structure supports the wind load received by the vehicle.

The left and right side edges of the door frame 21 can be constituted by a vertical auxiliary member 22 using a steel material or a wire which is much lighter than the vertical main column 13 or the vertical auxiliary column 15. .

Lower support traveling member 8 serving as a support point of door 20
Arranges this in the immediate vicinity of the mounting position of the vertical main column 13 on the horizontal main beams 11, 12.

The range of the mounting position of the vertical main column 13 includes the left and right ends 11A, 11A of the horizontal main beams 11, 12.
B, 12A, and 12B are arranged at the optimum distance h.

The optimum distance h depends on the rigidity of the door frame 21. However, if the length of the horizontal main beams 11 and 12 is 2H, a range in which the relationship of 1/4 <h / H <1/2 holds. And

FIG. 2 shows a horizontal main beam 11 caused by wind load.
FIG. 12 is a schematic plan view showing a flexed state of No. 12, in which arrows indicate the direction of wind from the front of the door.

The state (1) is the case of the conventional door 1, in which the deflection at the center is excessive due to the wind load received from the front. Also, from the state of (2) to the state of (1), the deflection at the center is also excessive.

(3) The case of the present invention which satisfies the condition of 1/4 <h / H <1/2.
2 is minimal.

In the states (4) to (5), h / H is １ ／.
Even if it is larger, the bending of both ends 11A, 11B, 12A, 12B of the horizontal main beams 11, 12 becomes excessive.

As described above, in the door 20 of the present invention, since the distance between the pair of vertical main columns 13 is reduced, the deflection of the horizontal main beams 11 and 12 can be suppressed to be small. , 12 can be made of lighter material with low rigidity.

In other words, the rigidity of each member constituting the door 20 can be reduced, and the horizontal main beams 11, 12,
In addition, the weight of the horizontal auxiliary beam 14, the vertical auxiliary column 15, and the vertical auxiliary member 22 can be greatly reduced.

Further, in order to reduce the distance between the vertical main columns 13, the length of the horizontal breath 17 can be reduced.

Further, since the weight of the lower horizontal auxiliary beam 14 due to its own weight is smaller than that of the conventional structure, the conventional vertical breath 18 for preventing the weight from being used becomes unnecessary or its weight can be reduced.

Furthermore, by optimizing the structure of the entire door 20, the distribution of generated stress can be made well balanced with little variation among members.

In the case of the illustrated example, 1600 cm × 24
In the case of a large door of 00 cm, the door 20 of the conventional structure is 30 tons, and the door 20 is 22 tons, which is 40% lighter.

[0041]

As described above, according to the present invention, the mounting position of the vertical main pillar is not at both ends of the horizontal main beam but near the center in the length direction (inward of the door frame). The weight of the entire door can be reduced.

[0042]

[Brief description of the drawings]

FIG. 1 is a front view of a door 20 having a door structure according to an embodiment of the present invention.

FIG. 2 is a schematic plan view showing the state of deflection of horizontal main beams 11, 12 due to a wind load.

FIG. 3 is a front view of, for example, a door 1 for a hangar according to the conventional door structure.

FIG. 4 is a vertical cross-sectional view of a main part of the same, partially omitted.

[Explanation of symbols]

1 door 2 door frame 3 outer panel (outer plate member) 4 lighting window (outer casing member) 5 a pair of left and right upper guide roller 6 the upper guide member 7 pair of right and left support running wheels 8 lower support traveling members 9 guide rails 10 running Road 11 Upper horizontal main beam (horizontal main beam) 11A, 11B Left and right ends of upper horizontal main beam 11 12 Lower horizontal main beam (horizontal main beam) 12A, 12B Left and right ends of lower horizontal main beam 12 Part 13 Vertical main pillar 14 Horizontal auxiliary beam (auxiliary member, stud) 15 Vertical auxiliary column (auxiliary member, stud) 16 Exterior plate material attaching member 17 Horizontal breath 18 Vertical breath 20 Door 21 Door frame 22 Vertical auxiliary material H Horizontal The length of the horizontal main beams 11 and 12 h The vertical main columns 1 from the ends of the horizontal main beams 11 and 12
Length to the position to attach 3

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigefumi Kihara 5-2 Sokaicho, Niihama-shi, Ehime Sumitomo Heavy Industries, Ltd. Niihama Works 58) Field surveyed (Int.Cl. ⁶ , DB name) E06B 3/01

Claims (3)

(57) [Claims] 1. An upper horizontal main beam, a lower horizontal main beam, a vertical main column, and an auxiliary member mounted between the upper horizontal main beam, the lower horizontal main beam, and the vertical main column. The configured door frame, an exterior plate member integrally attached to the door frame between the upper horizontal main beam and the lower horizontal main beam, and an upper guide member for guiding the door frame in the opening and closing direction, A lower support traveling member for supporting the load of the door frame and causing the door frame to open and close along a predetermined traveling path, and the door frame and the lower support wherein a door structure in which to receive the wind loads in the outer plate member, the vertical main pillar, which was a two, the upper horizontal main beam and the lower Attaching said vertical main pillar from the left and right ends at a position closer to the center direction along its length in the horizontal direction main beams respectively, further, the length of the upper horizontal main beam and the lower horizontal main beams 2H When the length from the end of the upper horizontal main beam and the lower horizontal main beam to the position where the vertical main column is attached is h, １ ／ <h / H <1 / 2. A door structure characterized by the following relationship: 2. The door structure according to claim 1, wherein the upper guide member is attached at or near a position where the vertical main column is mounted on the horizontal main beam. 3. The door structure according to claim 1, wherein the lower support traveling member is attached to a position at or near an attachment position of the vertical main column to the horizontal main beam.