JPH0796815B2 - Retractable roof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a dome type retractable roof applicable to an all-weather stadium or the like.

《Prior art》 Conventionally, in this type of dome type retractable roof, a moving roof slab composed of a frame with a roof membrane is radially divided from the center point of the dome to the outer peripheral direction, and these are vertically overlapped. It was constructed like this and supported by beams so that it could travel freely. Alternatively, the movable roof slab is configured in an arch shape, and the base end portion having the arch is supported by a traveling carriage to be moved in the horizontal direction to open and close.

<< Problems to be Solved by the Invention >> In the case of moving the movable roof slab vertically, a fixed roof is provided on the outer periphery, and the movable roof fits on the fixed roof side, which has the drawback of lacking a sense of openness. . Further, in the case where the movable roof slab is moved horizontally, the storage area of the portion for accommodating the movable roof in the fully opened state is considerably large, which is disadvantageous from the viewpoint of effective utilization of the site.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a retractable roof having a simple structure, a high opening ratio, and a short opening / closing time.

<< Means for Solving the Problem >> In order to achieve the above object, the retractable roof of the present invention is a retractable roof that constitutes a hemispherical roof, in which an arch-shaped moving roof slab having a different radius of curvature is curved. The moving roof slabs are divided into a lower layer with a smaller radius of curvature and an upper layer with a larger radius of curvature, and their bases are separately rotatably supported. However, one of the two movable roof slabs is provided with traveling wheels for allowing the movable roof slab to turn in the circumferential direction so as to overlap with the other movable roof slab side.

<< Operation >> By rotating the arch-shaped moving roof slab in opposite directions about the respective pivot points so as to overlap the lower layer side with a small radius of curvature and the upper layer side with a large radius of curvature, The central top surface of a stadium or the like is opened, and one of the lower layer side and the upper layer side is rotated so as to overlap with the other side to increase the aperture ratio.

«Examples» Hereinafter, preferred examples of the present invention will be described in detail with reference to the drawings.

The present invention is basically a retractable roof constituting a hemispherical roof, the arch-shaped movable roof slabs 4,5,6,7 having different radii of curvature are sequentially arranged from the smaller radius of curvature to the larger radius of curvature. They are arranged so that they overlap each other, and these moving roof plates 4,5,
6, 7 are divided into a lower layer side with a small radius of curvature and an upper layer side with a large radius of curvature, and their bases are separately rotatably pivotally supported. A traveling wheel 8 is provided so as to be freely movable in the circumferential direction so as to overlap with the plate side.

As shown in FIG. 1, arch-shaped moving roof slabs 4,5,6,7 obtained by dividing a hollow hemisphere into four equal parts are arranged above the circular outer wall 1, and Left and right rotating shafts 2 and 3 are provided above the one diameter with one diameter sandwiched therebetween. The bases of the movable roof slabs 4, 5, 6, 7 are rotatably supported by rotating shafts 2, 3 in the vicinity of the diameter of the circular outer wall 1.

At that time, the moving roof slabs 4,5,6,7 are formed in an arc shape with the radius of curvature increasing from the leftmost side to the rightmost side so that the movable roof slabs 4, 5, 6 and 7 can obtain a free turning angle without colliding with each other. Has been done.

Therefore, the movable roof slabs 4,5,6,7 can be sequentially stacked in a stacked manner from the smaller radius to the larger radius.

And the left end is the moving roof plate 4 with the smallest radius,
The movable roof slab 5 located on the right side of the movable roof slab 5 is paired with the movable roof slab 5 and its base is pivotally supported by the rotating shaft 2. This is referred to as the lower layer side for convenience of description.

Further, the right end is the movable roof slab 7 having the largest radius, and the movable roof slab 6 located to the left of the movable roof slab 7 is paired with the base of the movable roof slab 6 by the rotating shaft 3 for convenience of description. It is called the upper layer side.

When opening / closing the moving roof slabs 4,5,6,7, the upper and lower layers are the rotation axes.
Since the opening and closing movements can be performed at the same time around 2,3, the time required for opening and closing can be reduced as compared with the case where all the moving roof slabs 4,5,6,7 are moved to one side.

Further, in this embodiment, the movable roof slab 4 is fixed to the left side portion of the circular outer wall 1, the traveling wheel 8 is provided on the bottom side of the movable roof slab 7, and the traveling wheel 8 is laid on the upper end of the circular outer wall 1. It is supported by 9 freely.

The moving roof slab 6 rotates so as to overlap the moving roof slab 7,
That is, the movable roof slab 5 is similarly opened and closed, and the movable roof slab 5 is similarly opened and closed toward the movable roof slab 4.

Then, while moving the movable roof slabs 6, 7 supported by the rotary shaft 3 along the circumferential direction of the circular outer wall 1, the movable roof slab 6 is lowered toward the movable roof slab 7, that is, opened. There is.

Fig. 2 shows the rotation and movement mechanism of the movable roof slabs 6 and 7.
The rotating mechanism of the moving roof slab 5 is the same as that of the moving roof slab 6. A winch 10 is provided on the rear side base of the moving roof slab 7, and a wire cable 11 pulled out from this winch 10
Is inverted by a sheave 12 provided near the apex of the back surface of the moving roof 7, and its free end is locked to the lower edge of the moving roof slab 6. When the wire cable 11 is wound up by the winch 10, the movable roof slab 6 is pulled upward by the wire cable 11 which is locked to the lower edge of the movable roof slab 6. On the contrary, if the wire cable 11 is loosened with the winch 10, that is, if the wire cable 11 is unwound, the moving roof slab 6 descends according to the unwinding speed. Thus moving roof version 6
Can be rotated about the rotation shaft 3 in the vertical direction.

Open the movable roof slabs 5 and 6 to the left and right respectively, and at the same time with this opening movement, the movable roof slabs 6 and 7 are swiveled to the movable roof slabs 4,5 and the high opening as shown in FIG. Get the rate.

Instead of the winch 10, the rotary shafts 2 and 3 may be directly driven to rotate by a motor.

In any of the above cases, the braking device 13 is used to enhance safety in that the movable roof slabs 5 and 6 are prevented from falling naturally. This braking device 13 is shown in FIG.

The braking device 13 is provided with a large-diameter gear 14 and a brake disc 15 on the rotating shaft 2 of the moving roof slab 5, and a coaxial clutch 16 is provided between the large-diameter gear 14 and the brake disc 15 so that the brake disc 15 moves. The plate 5 is structured so as to be free from the rotary shaft 2, and the coaxial clutch 16 is provided between the brake disc 13 and the rotary shaft 3. Then, an intermediate gear 18 having a small diameter is inserted between the large-diameter gear 14 and the large flywheel 17, and the force of the rotating shaft 2 trying to rotate freely is converted into the rotational force of the large flywheel 17, and the flywheel is rotated.
The force to rotate the 17 is balanced with the force to move the movable roof slab 5 naturally. Further, when the coaxial clutch 16 is connected as required, the disc pad 19 sandwiching the brake disc 15 is hydraulically driven to forcibly apply braking to the rotary shaft 2.

Further, through holes are intermittently formed in the brake disc 15 of the braking device 13 in the same radial direction of rotation, and the through holes serve as lock holes 20.

Further, a cylinder 21 through which a cylinder rod is passed is arranged on an axis passing through the central axis of the lock hole 20, and when the movable roof slab 5 is fixed on the way, a winch 10 is used to move the movable roof slab 5.
Cylinder rod of the cylinder 21 is passed through the lock hole 20 rather than supporting the movable roof slab 5, thereby fixing the movable roof slab 5 at an intermediate position in the moving direction. Therefore, it is advisable to interlock the drive of the cylinder 21 and winch 10. Moving roof slab 6 and its pivot 3
Is the same.

<Effect> As described in detail above, according to the retractable roof of the present invention, the arch-shaped moving roof slabs having different radii of curvature are arranged so as to be sequentially overlapped from a small radius of curvature to a large radius, Since the bases of the moving roof slabs to be overlapped are pivotally supported by the rotary shaft, the rotary roof slab is centered around the rotary shaft so that the moving roof slab with a large radius of curvature overlaps the moving roof slab with a small radius of curvature. It can be opened and closed simply by rotating it.

The shape of the moving roof slab is arched with a constant radius of curvature, and the bases of the lower and upper layers when superposed are only pivotally supported by separate pivot points with the pivot points separated. The structure of the roof slabs and the dimensional accuracy required for overlapping each other are simple and the construction is easy, and at the same time, the movable roof can be opened and closed for each rotation axis, providing an extremely simple moving structure. It will be a retractable roof.

Furthermore, if necessary, the moving roof slab can be stopped at both ends in the circumferential direction of the stadium, etc., and the moving roof slab on the side of one rotation axis is equipped with traveling wheels to move the other. Since the rail that extends to the roof slab can be used for swivel movement, opening and closing movement and swivel movement can be performed simultaneously to set the moving roof slab on only one side, which shortens the opening and closing time and greatly reduces the aperture ratio. There is an advantage that it can be taken large.

[Brief description of drawings]

FIG. 1 is a perspective view of an opening / closing roof according to an embodiment of the present invention, and FIG. 2 is a partial sectional view for explaining the opening / closing power mechanism,
FIG. 3 is a perspective view showing a fully opened state, and FIG. 4 is a perspective view showing a braking device for preventing the movable roof slab from naturally falling. DESCRIPTION OF SYMBOLS 1 ... Circular outer wall, 2 ... Rotating shaft 3 ... Rotating shaft, 4 ... Moving roof slab 5 ... Moving roof slab, 6 ... Moving roof slab 7 ... Moving roof slab, 8 ... Running wheel 9 ... Rail, 10 ... Winch 11 … Wire cable, 12… Sheave 13… Braking device, 14… Large gear 15… Brake disc, 16… Coaxial clutch 17… Large flywheel 18… Intermediate gear, 19… Disc pad 20… Lock hole, 21… Cylinder

Claims (1)

[Claims] 1. In an openable and closable roof constituting a hemispherical roof, arch-shaped movable roof slabs having different radii of curvature are arranged so as to sequentially overlap from one having a smaller radius of curvature, and the other is moved. The roof slab is divided into a lower layer side with a smaller radius of curvature and an upper layer side with a large radius of curvature, and their bases are separately rotatably rotatably supported. An openable roof, which is provided with traveling wheels so as to be able to turn and move in the circumferential direction so as to overlap on the side.