JPH0816374B2 - Retractable roof - Google Patents

Description

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

《Prior art》 Conventionally, in a retractable dome roof with this type of retractable roof, etc., a moving roof composed of a frame with a roof membrane is radially divided from the center point of the dome to the outer peripheral direction, Was constructed so that it would overlap in the vertical direction, and was supported movably by beams and the like. Alternatively, the roof set is configured in an arch shape, and the base end portion of 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 in the vertical direction, a fixed roof is provided on the outer periphery, and the movable roof fits on the fixed roof, which has the drawback of lacking a feeling of openness. . Also, in the case of moving the movable roof horizontally,
In the fully opened state, the storage area of the part that houses the moving roof is considerably large, which is disadvantageous in terms of effective use 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 with a large opening ratio that can be opened and closed with a simple mechanism.

<< Means for Solving the Problem >> In order to achieve the above object, the retractable roof of the present invention has arch-shaped movable roofs having different radii of curvature, which are sequentially stacked from one having a small radius of curvature to a large one. The base end of each unit of the moving roofs superposed on each other is pivotally supported by a rotating shaft with a braking device, and in order to open and close the moving roofs with the rotating shaft as a central axis, these moving roofs are provided with winches. Along with connecting a means such as pulling with a wound wire, the braking device is connected to the rotating shaft via a clutch so that the rotating shaft can rotate freely so as to brake the opening / closing drive of the moving roof. With a brake disc to be braked,
Further, in order to fix the movable roof at an arbitrary opening position, it is inserted into and removed from a plurality of lock holes formed at appropriate intervals along the rotation direction of the brake disc to prevent rotation of the brake disc. It is characterized by being equipped with a cylinder that drives the cylinder rod to move in and out.

《Operation》 The base end of the overlapping moving roofs is rotatably supported by a rotating shaft, and the rotating roof has a braking device. The braking force is controlled by the braking device so that it does not fall due to its own weight when it moves downward from the apex of the semi-circular movement trajectory where the moving roof moves during that movement, that is, when it opens. Move while giving. When moving these moving roofs from the bottom to the top, a winch is driven and the driving force pulls up the moving roofs.

That is, it moves up and down so as to draw an arch-shaped moving roof or a semicircle around the rotation axis.

Further, as a braking device provided on the rotary shaft, a brake disc that is connected to the rotary shaft via a clutch so as to be freely contactable and separable, and the rotation of which is braked to brake the opening / closing drive of the moving roof is provided. In addition to this, by including a cylinder that drives the cylinder rod that retracts into and out of the lock hole that is formed in a plurality of lock holes formed at appropriate intervals along the rotation direction of the brake disc to stop the rotation of the brake disc, The rotation of the brake disc can be completely prevented by the cylinder, the movable roof can be stably and reliably fixed at an arbitrary position on the way of opening and closing, and various opening degrees of the openable roof can be obtained.

<< Embodiment >> Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

Figure 1 shows a retractable roof with a movable roof that opens from the center to the left and right, and has a symmetrical structure. The fixed roof 1 is installed on the left and right of the center of the building at a rising angle of about 45 degrees, and the fixed roof 1 and the center of curvature are the same, and the arched movement is formed with a radius slightly larger than the radius of curvature. The roof 2 is rotatably supported by a rotary shaft 3 installed near the center point of curvature. The movable roofs 2 have the same radius of curvature and are abutted at the apex of the building. When the movable roofs 2 are rotated from the center in the left-right direction, the movable roofs 2 overlap the fixed roof 1 and open in the left-right direction.

Therefore, the rotary shafts 3 are individually installed at the base end of the movable roof 2.

FIG. 2 shows means for rotating the movable roof 2 on the fixed roof 1 about the rotation shaft 3. Since it has a symmetric structure as described above, only one side is shown in FIG. 2, and the winch 4 is provided on the rear side base of the fixed roof 1, and the wire cable 5 pulled out from this winch 4 is The sheave 6 provided on the back surface of the fixed roof 1 and the reversing sheave 7 provided at the top are guided from the back surface of the fixed roof 1 through the apex to the front side of the fixed roof 1 and the wire cable 5 extracted therefrom. The free end is locked to the lower edge of the moving roof 2. When the wire cable 5 is wound by the winch 4, the moving roof 2 is pulled upward by the wire cable 5 which is locked to the lower edge of the movable roof 2. On the contrary, if the wire cable 5 is loosened by the winch 4, that is, when the wire cable 5 is unwound, the moving roof 2 descends according to the unwinding speed. In this way, the movable roof 2 can be vertically rotated about the rotation shaft 3.

3 and 4 relate to another embodiment, in which the fixed roof 1 is present only on one side of the building so as to further enhance the open feeling.

The fixed roof 1 exists only on the left side, and the movable roofs 2a, 2b, 2c are arched with the same radius of curvature as the fixed roof 1.
Is an arch with a gradually increasing radius of curvature. The base end portion is rotatably supported by one rotating shaft 3, and the rotating shafts 3 are freely overlapped with each other.

The power mechanism for opening / closing these movable roofs 2a, 2b, 2c is as shown in FIG. 4, in which the winch 4 is installed inside the fixed roof 1, and the free end of the wire cable 5a unwound from this is It is locked to the lower end of the moving roof 2c farthest from the fixed roof 1, and the middle part thereof is guided and supported by the guide rollers 8 suspended on the respective moving roofs 2a and 2b.

When the wire cable 5a is unwound from the winch 4, the outermost movable roof 2c on the outermost side is pivotally moved in the opposite direction due to its own weight, and the movable roofs 2b, 2a are sequentially moved so as to be pulled by this. The roof is closed by moving. However, on the contrary, when the roof is opened, the wire cable 5 is wound by the winch 4, and the moving roof 2c is pulled up by the traction force when the wire cable 5a is wound, and further the moving roof 2c is moved toward the back surface of the moving roof 2c. The protrusions 9 protruding to the moving roofs 2b and 2a
The movable roofs 2b and 2a are moved in the moving direction by hitting the outer protrusions 10 and 10a provided in the same manner.

In the example of FIG. 4, one winch 4 is provided inside the fixed roof 1, and the movable roof 2c located in the symmetrical direction of the fixed roof 1 is pulled up by the wire cable 5a drawn from the winch. If you are worried that you will naturally fall due to its own weight when you close it, you can install another winch inside the movable roof 2c and install a pair of winches 4 and wire cables 5a symmetrically. Good.

In any of the above-mentioned embodiments, the control device 11 is required in that the movable roof 2 is prevented from naturally falling. This braking device 11 is shown in FIG.

The braking device 11 includes a large-diameter gear 12 and a brake disc 13 on the rotary shaft 3 of the moving roof 2. A coaxial clutch 14 is provided between the large-diameter gear 12 and the brake disc 13 so that the brake disc 13 can be installed on the moving roof 2. The rotary shaft 3 is configured so as to be in a free state, and the coaxial clutch 14 is provided between the brake disc 13 and the rotary shaft 3. Then, an intermediate gear 16 having a small diameter is inserted between the large-diameter gear 12 and the large flywheel 15 to convert the force that the rotating shaft 3 tries to freely rotate into the rotating force of the large flywheel 15 to
The force that tries to rotate 15 is balanced with the force that the moving roof 2 tries to fall naturally. Also, when the coaxial clutch 14 is connected as necessary, the brake disc
A disc pad 17 sandwiching 13 is hydraulically driven to forcibly brake the rotary shaft 3.

Further, through holes are intermittently formed in the brake disk 13 of the braking device 11 in the same radial direction of rotation, and the through holes are used as lock holes 18.

Further, a cylinder 19 through which a cylinder rod is passed is arranged on the axis passing through the central axis of the lock hole 18, and when the movable roof 2 is fixed midway, the movable roof 2 is not supported by the winch 4 but the cylinder 19 The cylinder rod is passed through the lock hole 18, whereby the movable roof 2 is fixed at an intermediate position in the moving direction. Therefore, it is advisable to interlock the drive of the cylinder 19 and winch 4.

<Effect> As described in detail above, according to the retractable roof of the present invention, arch-shaped movable roofs having different radii of curvature are sequentially stacked from one having a small radius of curvature to one having a large radius of curvature. Since the base end of each moving roof is rotatably supported by the rotating shaft, the moving roof with a large radius of curvature is rotated around the rotating axis so that it overlaps the moving roof with a small radius of curvature. It can be opened and closed by itself.

Since the shape of the moving roof is an arch with a constant radius of curvature, and its base end is only supported by a rotating shaft with a braking device, the dimensional accuracy required for the structure of the moving roof and the mutual overlap is improved. Since it is simple, construction is easy and at the same time a braking device is installed on the rotating shaft itself, so it is not necessary to install a braking device on the winch itself, and each movable roof can be opened and closed with a wire wound around a simple normal winch. It becomes possible, and it becomes a retractable roof with a very simple moving structure. Furthermore, if necessary, the fixed roof can be stopped at only half of the circumference of the building, and the fixed roof can be provided on the left and right in the circumferential direction. You can choose the position of the moving roof. In addition, the fixed roof is 180
There is an advantage that the aperture ratio can be made very large in that it can be set only in the degree part.

Further, as a braking device provided on the rotary shaft, a brake disc that is connected to the rotary shaft via a clutch so as to be freely contactable and separable, and the rotation of which is braked to brake the opening / closing drive of the moving roof is provided. In addition to this, by including a cylinder that drives the cylinder rod that retracts into and out of the lock hole that is formed in a plurality of lock holes formed at appropriate intervals along the rotation direction of the brake disc to stop the rotation of the brake disc, The rotation of the brake disc can be completely prevented by the cylinder, the movable roof can be stably and reliably fixed at an arbitrary position on the way of opening and closing, and various opening degrees of the openable roof can be obtained.

[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 another embodiment, and FIG.
FIG. 5 is a cross-sectional view for explaining the opening / closing mechanism in the figure, and FIG. 5 is a perspective view showing a braking device for preventing a natural fall of the moving roof. 1 ... Fixed roof, 2 ... Moving roof 3 ... Rotation axis, 4 ... Winch, 5 ... Wire cable, 6 ... Sheave, 7 ... Reversing sheave, 8 ... Guide roller, 9 ... Protrusion, 10 …… Outside protrusion 11 …… Braking device, 1 …… Large diameter gear 13 …… Brake disc, 14 …… Coaxial disc 15 …… Flywheel, 16 …… Intermediate gear 17 …… Disc pad, 18 …… Lock Hole 19 ... cylinder

Claims (1)

[Claims] 1. An arch-shaped movable roof having a different radius of curvature is sequentially stacked from a small radius of curvature to a large radius of curvature, and the base end portion of each of the superimposed movable roofs is rotated with a braking device. In order to open and close the movable roof around the rotating shaft as a central axis, the movable roof is connected to a means such as pulling with a wire wound around a winch, and the braking device is connected to the braking device. Is equipped with a brake disc that is connected to the rotating shaft via a clutch so that the rotation of the moving roof can be stopped in order to brake the opening / closing drive of the moving roof. In order to fix the brake disc in place, a cylinder rod that is insertably / removably inserted into a plurality of lock holes formed at appropriate intervals along the rotation direction of the brake disc to restrain the rotation of the brake disc appears and disappears. A retractable roof characterized by having a driving cylinder.