JPH0433344B2 - - Google Patents

Description

[Detailed Description of the Invention] <<Field of Industrial Application>> The present invention relates to a retractable roof that is attached to a building equipped with a movable roof that can be partially opened and closed depending on weather conditions, and used for the maintenance and management of the structure. Regarding inspection equipment.

<<Prior Art>> As is well known, structures used for athletic events such as baseball stadiums and track and field stadiums do not have roofs attached to them.

This is intended to allow athletic competitions to be held in as natural a environment as possible, but if it rains or it rains during a competition, the competition must be suspended or canceled.

Therefore, all-weather stadiums have recently been proposed, and for example, air membrane structures are attracting attention.

However, the air membrane structure has the following problems.

In other words, an air membrane structure consists of a roof made of a membrane material made of synthetic resin, etc., and pressurized air that is slightly higher than atmospheric pressure is sealed inside. The entrance/exit structure to prevent leakage becomes complicated.

In addition, not only will it be difficult to provide lighting and ventilation inside the venue, but the purpose of the competition will be lost if the competition is held or watched in a natural environment.

Therefore, depending on the weather, the roof can be partially opened and closed.
The present application has previously proposed a movable roof that allows natural lighting and ventilation during sunny days, allowing athletics to be held in a natural environment, and also allows for this during rainy days, as well as having an excellent function that allows for easy opening and closing operations. The applicant is Japanese Patent Application No. 60-9136 and Japanese Patent Application No. 61-163592.
We are proposing new titles, etc.

<<Problems to be Solved by the Invention>> However, in the retractable roof provided with the movable roof described above, it is necessary to maintain and manage the movable structure. In addition to the problem of the movable roof, there were also problems with the painting of the roof and the management of lighting equipment, and temporary scaffolding had to be erected when necessary or appropriate for maintenance inspections and repair work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its purpose is to provide an inspection device for a retractable roof, which has a movable scaffold attached to the retractable roof so that the underside of the attic can be accessed at will.

<<Means for Solving the Problems>> In order to achieve the above object, the retractable roof inspection device according to the present invention has a fixed roof extending in the form of an eave from the top of the peripheral wall toward the center of the building. , a retractable roof comprising a movable roof configured to be movable back and forth between the fixed roof and the center of the building; The first rail laid on the arch beam supporting the arch beam, the trolley running on the rail, the simple suspended scaffold suspended by the trolley, the guide members provided at the base and tip of the arch beam, and the guide member between the guide members. A movable member that is hung around in an endless manner, a fastening member that fastens a cart to the movable member, and a second rail that is laid in parallel at a certain distance in the radial direction of the ceiling of the building;
It consists of a stepped girder that spans the middle of the second rail via running wheels, and a traveling device that drives the running wheels of the stepped girder.

≪Operation≫ Rails are laid on the beams that support the roof of the building, and scaffolding is permanently installed to run on these.When in use, movable members are operated and are usually stored at the end of each rail. Additionally, the stepped girder itself has a traveling device, which is driven to inspect and cover the fixed roof in the radial direction.

<<Example>> Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figures 1 and 2 schematically show a stadium with a dome-shaped retractable roof. They are placed at 60 degree intervals.

An annular beam 3 is provided to connect and reinforce the arch beams 2 in the lateral direction, that is, in the radial direction, at an appropriate upper position of the peripheral wall 1.

The fixed roof 4 has an eave-like configuration extending from the upper edge of the peripheral wall 1 to the annular beam 3, and when you look up, it is ring-shaped as shown in Figure 2 a and b, and from the inner contour of the fixed roof 4 toward the center. An opening 5 leading to the opening 5 is left.

The movable roof 6 has a multi-layered structure, and is superimposed on the fixed roof 4 when the opening 5 is opened. opening 5
When closing, it slides from above the fixed roof 4 towards the center and closes over the opening 5.

Now, on the back side of the fixed roof 4, a girder 7 that moves in the radial direction of the fixed roof 4 is provided.
is spanned between a track laid along the upper end of the peripheral wall 1 and a track laid along the annular beam 3, and runs on the back surface of the fixed roof 4 in the radial direction. The details of this girder 7 will be described later.

Next, a simple hanging scaffold (gondola) 8 that moves along the arch beam 2 will be explained. As illustrated in FIG. 3 to FIG. 9, the movable roof 6 has a two-tiered structure (there are three tiers in FIG. 1, but any number of tiers may be used), and the upper surface of the arch beam 2 is opened and closed by running wheels. The gondola 8 is moving along the side of this arch beam 2.

That is, sprockets 9-9 are provided near the base end where the arch beam 2 rises and near the tip top position, and the chain 10 is routed around the sprockets 9-9 to drive at least one of the sprockets 9-9. If the gondola 8 is fixed to this chain 10, the gondola 8 will accompany the chain 10 in the moving direction. Sprocket 9- as a guide member
A part of the gondola 8 is locked to a chain 10 as a moving member guided and driven by the chain 9. However, the guide member may be a sheave and the moving member may be a rope. Various mechanisms can be considered for the suspension mechanism of the gondola 8 and the mechanism for smoothly accompanying the movement of the chain 10, but in this embodiment, the first rail 1 laid along the arch beam 2 is used.
1 is constructed by laying a rail 13 on a support beam 12 that projects laterally from the side surface of an arch beam 2.
A gondola 8 is vertically supported by a hanging arm 15 on a bogie 14 placed on a rail 11.

The gondola 8 is vertically suspended from a hanging arm 15 so as to be able to swing freely, and its swing angle is set so that the floor can always maintain a stable level despite changes in the radius of curvature of the arch beam 2 when the gondola 8 moves. In addition, a horizontal holder 17 having a piston shaft extending from a cylinder filled with compressed gas to both ends between the vertical column 16 of the gondola 8 and the hanging arm 15 applies some braking to the swinging force.

Next, the connection between the truck 14 and the chain 10 will be explained. The chain 10 is arranged on the support beam 12 between the rail 13 and the arch beam 2,
The intermediate part of the chain 10 located halfway between the sprockets 9-9 is supported by two upper and lower drum-shaped rollers 18 installed on the support beam 12. Then, the tip of the gripping arm 19 whose base is fixed to the truck frame of the truck 14 is extended above the chain 10, and the chain coupling pin 20 is inserted through the garter 21 fixed with a bolt to the tip of the gripping arm 19. It is connected to the chain 10.

In order to prevent the cart 14 from floating off the rail 13, a lifting prevention roller 22 is provided in the middle of the hanging arm 15, the end of which is fixed and rotatably pivoted on a shaft extending horizontally to the back surface of the rail 13. ing. This roller 22 is moved integrally with the running wheels of the trolley 14 while lightly abutting the back surface of the rail 13.
It is holding 3.

Note that the original chain coupling pin 20, which only serves to stop the side plate of the chain 10 and the chain roller, is insufficient in length, so a length that includes the thickness of the garter 21 is used.

Wheel chocks 23 are welded to both ends of the rail 13 in advance to stop the running wheels of the truck 14 and to prevent the truck 14 from slipping off.

The case where the first rail 11 is installed on the side of the arch beam 2 is as described above, but it may be installed at the bottom of the arch beam 2 as shown in FIG. 9.

By the way, as illustrated in FIG. 10, the girder 7 is spanned from the base of the arch beam 2 to the annular beam 3 with the same radius of curvature as the arch beam 2, and there is a floor between the pair. It becomes a staircase where plate 24 is placed. A handrail 25 is erected on the girder 7, and a handrail 26 is installed on the upper end surface of the handrail 25. The upper and lower ends of the girder 7 are engaged with second rails 27 provided on the upper end of the peripheral wall 1 and the side surface of the annular beam 3 via wheels 28.

A frame member 29 supporting the axle of the wheel 28 is fixed to each upper and lower end of the girder 7, and the wheel 28 runs in the direction in which the second rail 27 is laid, thereby moving the girder 7. For this purpose, the running device for running the wheels 28 has the following configuration.

A pin rack 30 is attached to the second rail 27,
The sprocket 31 engaged with this is connected to the motor 32.
It rotates. A speed reduction mechanism is interposed between the motor 32 and the sprocket 31 so that the sprocket 31 rotates at a required number of rotations.
This second rail 27 is laid on the peripheral wall 1 side located at the bottom and the annular beam 3 side located at the top, and a wheel 28 supported by a frame member 29 connected to the girder 7 is mounted on each side. It is provided. The motor 32 may drive each of the upper and lower wheels 28. However, since the radii of the peripheral wall 1 and the annular beam 3 are different, in order to make a difference in running speed, a shaft housing 33 is attached to the girder 7, and a motor 32 is installed on the running wheel 28 side (lower part) on the surrounding wall 1. The bevel gear 34 transmits power to a screw shaft 36 connected to the universal joint 35 installed in the shaft housing 33. This screw shaft 36 is connected to the running wheel 2 on the side of the annular beam 3.
The rotation output is input to the differential gear mechanism 37 provided on the 8th side (upper part), and its rotational output is transmitted to the upper traveling wheel 28 via the bevel gear 34a.

As described above, by driving the chain 10 in any left or right direction, the gondola 8 can be moved along the arch beam 2. Further, by rotating the motor 32, the girder 7 can be moved to a desired position, and the user can walk on the floor slab 24 to reach any desired back side part of the fixed roof 4.

In addition, although the running girder 7 illustrated in FIG. 2a is arranged on the side surface of the arch beam 2, it may be arranged below the arch beam 2 as shown in FIG. 2b.

The details are as shown in FIG. 10b, where the second rail 27 that engages and suspends the running wheel 28 above the girder 7 intersects with the first rail 11 below the arch beam 2. , the first rail 11 side is cut to a degree that slightly avoids the rising portion of the second rail.

Therefore, since the traveling girder 7 can freely move in the radial direction of the annular beam 3, the number of running girders 7 may be one, two, or three. Even if the traveling of the bogie 14 is partially cut off at the point where it intersects with the second rail, the radius of the running wheels is large enough to make the cutting interval irrelevant, so the movement of the gondola 8 is not hindered in any way.

<<Effects>> As explained in detail above, according to the retractable roof inspection device according to the present invention, a simple hanging scaffold is suspended by a cart running on a rail laid on a beam supporting the retractable roof. Therefore, no special beams, etc. are used to support the suspended scaffolding, the degree of opening of the retractable roof is not hindered, and the suspended scaffolding is moved by the rails along the beams and the movable members, so the power source is It is always fixed at a fixed location, which is advantageous in terms of maintenance and inspection.

Furthermore, moving radially along the inside of the peripheral wall,
In addition, since a stepped girder that can be raised and lowered from the outer circumferential side to the inner circumferential side is installed on the back surface of the fixed roof, the back surface of the fixed roof can be evenly covered in a close position.

Therefore, it is easy to replace the lighting equipment whether the retractable roof is open or closed, and temporary scaffolding for maintenance and inspection is usually unnecessary. In particular, as the roof opens and closes, it is difficult for conventional temporary scaffolds to support the roof and to move along with the moving roof while the roof is being moved.However, in this invention, the moving speed of the suspended scaffold can be changed in this respect as well. This is a great advantage for retractable roofs.

[Brief explanation of drawings]

Figure 1 is a perspective view of a structure with a retractable dome roof, Figures 2a and b are schematic bottom views showing the roof viewed from below, Figure 3 is a side view of the arch beam, and Figure 4 The figure is a partially enlarged side view.
The figure is a front view showing the guide member and moving member of the simple suspended scaffold from the top of the arch beam, Fig. 6 is a perspective view thereof, and Fig. 7 is a perspective view showing the coupling means between the trolley and the chain (moving member). , Fig. 8 is a perspective view showing the part where the suspended scaffold is suspended from the trolley, Fig. 9 is an explanatory view illustrating the case where the positional relationship between the arch beam and the guide rail is changed, and Fig. 10 a and b are the stairs. FIG. 11 is a side view showing the running device on the lower side of the stepped girder, and FIG. 12 is a side view showing the running device on the upper side of the stepped girder. 1... Peripheral wall, 2... Arch beam, 3... Annular beam,
4... Fixed roof, 5... Opening, 6... Moving roof,
7... Girder, 8... Gondola, 9... Sprocket, 10... Chain, 11... First rail, 1
2... Support beam, 13... Rail, 14... Trolley, 1
5...Hanging arm, 16...Vertical column, 17...Horizontal retainer, 18...Trumpet-shaped roller, 19...Gripping arm, 20...Cup ring pin, 21...Garter, 22...Floating Prevention roller, 23...wheel chock, 24...floor slab, 25...handrail, 26...handrail, 27...second rail, 28...wheel, 29...
... Frame member, 30 ... Pin rack, 31 ... Sprocket, 32 ... Motor, 33 ... Shaft housing, 34 ... Bevel gear, 35 ... Universal joint, 36 ... Screw shaft, 37
...Differential gear mechanism.

Claims (1)

[Claims] 1. A fixed roof extending in the shape of an eave from the top of the peripheral wall toward the center of the building, and a movable structure capable of moving back and forth between the fixed roof and the center of the building. a retractable roof comprising a first rail extending from the fixed roof to a central position of the building and supporting the fixed roof and the movable roof; A dolly, a simple suspended scaffold suspended by the dolly, a guide member provided at the base end and a tip end of the arch beam, a movable member suspended endlessly between the guide members, and the movable member. a fastening member for fastening the bogie to the building, a second rail laid parallel to the building at a certain distance in the radial direction of the ceiling, and a running wheel at an intermediate position between the second rail. A retractable roof inspection device characterized by comprising a stepped girder spanned through the stepped girder and a traveling device that drives the running wheels of the stepped girder. 2. The traveling device drives one of the running wheels of the second rail, and drives the other running wheel through a power transmission means and a differential gear device arranged along the girder. The retractable roof inspection device according to claim 1, characterized in that it is driven.