JP2864987B2 - Opening trolley for openable roof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an openable and closable trolley in which a roof portion can be opened and closed by relatively rotating a plurality of fan-shaped roofs.

[0002]

2. Description of the Related Art This type of openable roof structure is used for a dome roof of a large stadium or the like.
No. 936 (E04B 1/32)
Japanese Patent Application Laid-Open No. 85438 / E04B1 / 342. That is, in the former, the fan-shaped roofs (the first movable roof and the second movable roof) divided into two semicircles move on the rail laid along the outer periphery of the dome. Roofs (first and second movable roofs) overlap each other at the center of the dome and are axially attached to each other. On the other hand, in the latter, of the divided fan-shaped roofs (fan-shaped roof blocks), some of the fan-shaped roofs are fixed and the remaining fan-shaped roofs can be rotated. The side fan-shaped roof is rotatably supported.

[0003]

However, in such a conventional openable roof structure, a plurality of fan-shaped roofs are pivotally mounted at the center of rotation in any of the cases shown in (1) and (2). The roof is opened and closed by the rotation guide of the fan-shaped roof about the rotation support shaft. Therefore, the outer peripheral portion of the movable-side fan-shaped roof is restricted from moving by the rotation support shaft, and it is necessary to form the track supporting the outer peripheral portion of the fan-shaped roof in a highly accurate perfect circle.

However, the fan-shaped roof covering a large space facility such as a large sports stadium is significantly increased in size, and the track supporting the outer peripheral portion of the fan-shaped roof is also significantly increased in diameter. For this reason,
It has become extremely difficult to construct a track with an extremely large diameter into a high-precision perfect circle, and the workability of the track has been significantly deteriorated, and the construction period has been prolonged.

In view of the above-mentioned problems, the present invention provides a rotation guide for a rotatable fan-shaped roof by a track supporting the outer peripheral portion of the fan-shaped roof, thereby smoothly rotating the fan-shaped roof. It is an object of the present invention to provide an openable / closable roof structure capable of reducing the roundness accuracy of the track while improving the workability of the track.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a plurality of fan-shaped roofs which cover the upper side of an annular wall surrounding the outer periphery, and these fan-shaped roofs are centered on the center of the annular wall. In an openable roof that is opened and closed by relatively rotating as a vertical wheel mounted on the outer periphery of a movable fan-shaped roof and rolling on an annular floor surface track provided on the floor surface, A horizontal wheel that rolls in contact with an annular wall track provided on the inner surface of the annular wall, and is provided between the vertical wheel and the horizontal wheel, and performs radial relative movement of the fan-shaped roof between the two wheels. And an allowable sideslip mechanism.

[0007]

According to the construction described above, in the opening / closing trolley of the openable roof according to the present invention, the horizontal wheel contacting the wall track while supporting the load of the fan-shaped roof movable by the vertical wheels contacting the floor track. The fan-shaped roof can be rotationally guided by wheels. Therefore, since the horizontal force can be exclusively supported by the horizontal wheel, it is possible to prevent a horizontal load from acting on the vertical wheel. By the way, a side skid mechanism is provided between the vertical wheel and the horizontal wheel, which allows relative movement of the fan-shaped roof in the radial direction between the two wheels.
Even when the roundness of the wall trajectory is reduced, the horizontal wheels can easily follow the wall trajectory.

[0008]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIGS. 1 to 5 show an embodiment of an opening / closing trolley according to the present invention, FIG. 1 is a front view of the opening / closing trolley, FIG. 2 is a side view of the opening / closing trolley, and FIG. FIG. 4 is a plan view of the openable roof, and FIG. 5 is a front view of the openable roof.

That is, as shown in FIGS. 4 and 5, the openable roof to which the present invention is applied has a fixed roof 12 as a fan-shaped roof and a movable roof on the upper side of an annular wall 10 surrounding the circumference in a circular shape. 14 to cover the dome shape. The fixed roof 12 and the movable roof 14 are each formed in a semicircular shape, and the outer periphery of the fixed roof 12 is fixed to the upper end of the annular wall body 10, and the outer periphery of the movable roof 14 is fixed to the annular wall body 10. It can be moved relative to.

The movable roof 14 is formed as a paragraph from the fixed roof 12 (see FIG. 5) so as to be able to sink under the fixed roof 12 (see FIG. 5).
Is closed, the half split end 14a of the movable roof 14 overlaps with the half split end 12a of the fixed roof 12. A plurality of open / close trolleys 16, 16... Are attached at appropriate intervals in the circumferential direction below the outer peripheral portion of the movable roof 14, and these open / close trolleys 16, 16.
4 is rotationally guided about the center O of the annular wall body 10.

As shown in FIGS. 1 and 2, the opening / closing cart 16 has a floor surface 18 corresponding to the outer peripheral portion of the movable roof 14.
Vertical wheels 22 rolling on an annular floor track 20 provided at
And a horizontal wheel 26 that rolls in contact with an annular wall surface track 24 provided on the inner surface of the annular wall body 10.
The floor track 20 is composed of an outer track 20a and an inner track 20b which are concentrically arranged at appropriate intervals, and the vertical wheels 22 also roll on the outer track 20a and the inner track 20b. Outer wheel 22a and inner wheel 22b. The outer peripheral wheel 2
The outer circumferences of the inner wheel 2a and the inner circumferential wheel 22b are each formed in a tapered shape in which the diameters of the adjacent wheels are increased. The outer peripheral wheel 22a and the inner peripheral wheel 22b are rotatably attached to a lower side of the base frame 30 via an equalizer 28, respectively. A vertically mounted core shaft 34 is mounted on the upper side of the base frame 30 via a side sliding mechanism 32.
The upper end of 4 is fitted and supported on the movable roof 14 via a thrust bearing 36. A side pressure support frame 38 is attached to the core shaft 34 between the side sliding mechanism 32 and the thrust bearing 36.
The horizontal wheel 26 is rotatably attached to an end of the annular wall 10 via an equalizer 40.

As shown in FIG. 3, the side sliding mechanism 32 is a guide member 3 fixed on the upper surface of the base frame 30.
2a and a movable piece 32 fixed to the lower end of the core shaft 34
b. The guide member 32a has a slot-like guide groove 32c extending in the radial direction of the movable roof 14 at the center.
Are formed in the guide groove 32c.
Are slidably fitted. The length of the guide groove 32c in the long axis direction is formed longer than that of the movable piece 32b, so that the movable roof 14 can be relatively moved in the radial direction.

With the above configuration, in the opening / closing trolley 16 of the opening / closing type roof according to the present embodiment, the movable roof 14 formed in a semicircular shape has a plurality of opening / closing trolleys 1 provided below the outer peripheral portion thereof.
., And the movable roof 14 is rotationally driven by a driving means (not shown), so that the opening / closing carts 16, 16.
4, the movable roof 14 rotates about the center O of the sector and opens and closes. At this time, in the opening and closing carts 16, 16,..., The vertical wheels 20 roll on the floor track 20, and the horizontal wheels 24 roll on the wall track 24. Accordingly, the load on the movable roof 14 is supported by the vertical wheels 20, and the horizontal wheels 24 roll on the wall track 24 to guide the movable roof 14 in rotation. For this reason, the movable roof 14 is guided for rotation by the horizontal wheels 26 rolling on the wall surface track 24, so that the movable roof 14 and the fixed roof 12 do not need to be rotatably supported on each other.

In this embodiment, since the sideslip mechanism 32 is provided between the base frame 30 on which the vertical wheels 22 are mounted and the lateral pressure support frame 38 on which the horizontal wheels 26 are mounted, the true circular shape of the wall surface track 24 is provided. When the degree is reduced, the side slip mechanism 3
2 slide allows the horizontal wheels 26 to follow the wall trajectory 24. Therefore, the ups and downs of the wall track 24 can be released by the sideslip mechanism 44, and the movable roof 14 can be smoothly rotated. Therefore, the roundness of the wall track 24 can be reduced, and the wall track 24 can be extended. The installation of the annular wall body 10 to which the annular wall 24 is attached can be facilitated, and the construction period can be shortened. The side slip mechanism 44
Is a movable piece 32b for dispersing the load of the movable roof 14.
It is desirable to increase the area of the bottom surface of.

In the present embodiment, the outer wheels 22a and the inner wheels 22b constituting the vertical wheels 22 are formed in a tapered shape in which the diameters of the adjacent wheels are enlarged. When the load is applied to the vertical wheels 22, the outer race 20a and the inner race 20
Since a centripetal force to the central portion between the vertical wheels b is generated, the vertical wheels 22 can be stably moved with respect to the floor track 20.

Further, in the openable roof of the embodiment, the circular dome roof is divided in half and one side is fixed roof 12,
Although the other side has a movable roof 14 disclosed, the circular dome roof is divided into three or more without being limited to this,
Of course, the present invention can be applied to a movable fan-shaped roof.

[0017]

As described above, the openable and closable trolley according to the present invention is provided with a vertical wheel rolling on a floor track and a horizontal wheel abutting on a wall track. A side-slip mechanism that allows relative movement in the radial direction is provided between the vertical wheels and the horizontal wheels. The fan-shaped roof can be rotationally guided by the abutting horizontal wheels. At this time, since the relative movement of the vertical wheel and the horizontal wheel in the radial direction is allowed by the sideslip mechanism, even when the roundness of the wall track is reduced, the ups and downs of the wall track are released and the horizontal wheels are released. Can follow the wall trajectory. Therefore, it is possible to reduce the roundness of the wall surface track, thereby facilitating the construction of the annular wall body to which the wall surface track is attached, and to shorten the construction period. Play.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of an openable and closable trolley of the present invention.

FIG. 2 is a side view showing one embodiment of the opening / closing cart of the present invention.

FIG. 3 is a perspective view showing an embodiment of the opening / closing cart of the present invention.

FIG. 4 is a plan view of an openable roof to which the present invention is applied.

FIG. 5 is a front view of an openable roof to which the present invention is applied.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Annular wall 12 Fixed roof 14 Movable roof 16 Opening / closing trolley 20 Floor track 22 Vertical wheel 24 Wall track 26 Horizontal wheel 32 Side-slip mechanism

Claims (1)

(57) [Claims] 1. An openable / closable type comprising: a plurality of fan-shaped roofs that cover the upper side of an annular wall surrounding an outer periphery, wherein the fan-shaped roofs are opened and closed by relatively rotating the fan-shaped roof about the center of the annular wall. On the roof, a vertical wheel attached to the outer periphery of the movable fan-shaped roof and rolling on an annular floor track provided on the floor surface, and abuts the annular wall track provided on the inner surface of the annular wall body. A horizontal wheel that rolls and is provided between these vertical and horizontal wheels,
An opening / closing trolley for an openable / closable roof, comprising: a sideslip mechanism that allows relative movement of the fan-shaped roof in a radial direction between both wheels.