JP3712479B2 - Opening and closing roof drive cart - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an open / close roof driving carriage applied to a storage-type open / close roof structure such as a multipurpose stadium.
[0002]
[Prior art]
In a conventional open / close roof structure such as a multipurpose stadium, the roof can be opened and closed by moving the roof in a horizontal direction by an open / close roof driving carriage. The open / close roof drive carriage is provided with a horizontal guide roller, and is configured to restrict illegal horizontal movement of the open / close roof drive carriage.
[0003]
[Problems to be solved by the invention]
As described above, the conventional open / close roof driving carriage is provided with a mechanism for restricting the horizontal movement by the horizontal guard roller. There is no problem in the normal state. However, if the horizontal guide roller of the open / close roof drive carriage is used only in the horizontal direction, depending on its strength (seismic intensity) when a large force is applied due to a large earthquake, for example. There was a risk of damage to the open / close roof and the drive trolley because the force such as an earthquake could not be eased and absorbed.
[0004]
Generally, it is conceivable that the upper structure is plasticized to mitigate and absorb forces such as earthquakes, but when an elasto-plastic design is attempted in which a part of the upper frame reaches the plasticization region, In addition, the design work with a convergence step becomes complicated.
[0005]
However, seismic design is indispensable, and there is a need for a structure that can suppress damage to the open / close roof and open / close roof drive cart even during a large earthquake without plasticizing the superstructure that complicates the design work. It had been.
[0006]
The present invention has been made in consideration of the above-described circumstances, and is capable of suppressing the damage to the open / close roof and the open / close roof drive carriage even when a large force is applied due to a large earthquake or the like. The purpose is to provide a dolly.
[0007]
[Means for Solving the Problems]
The present invention relates to an open / close roof drive carriage that moves the open / close roof while supporting a retractable open / close roof , and connects the two carriages respectively mounted on two rails via rollers. And a bracket that is formed of ultra-low yield point steel that is fixed by a replaceable structure at one end at the lower portion of the coupling portion. In order to constrain the movement in the horizontal direction, a horizontal guide roller is provided which is inserted into a horizontal guide provided along the moving direction and is in pressure contact with the guide surface of the horizontal guide .
[0008]
According to such a configuration, the bracket member provided with the horizontal guide roller is made of an extremely low yield point steel, so that it is plasticized and absorbs energy when a force is applied due to a large earthquake or the like.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a storage-type open / close roof structure such as a multipurpose stadium for explaining the open / close roof drive carriage according to this embodiment.
[0010]
As shown in FIG. 1, the open / close roof 10 is supported on a rail 14 by a plurality of open / close roof driving carriages 12 and is movable along the rail 14 in the horizontal direction.
2 is a plan view of the open / close roof drive carriage 12, FIG. 3 is a side view from the direction perpendicular to the moving direction of the open / close roof drive carriage 12, and FIG. 4 is a side view of the open / close roof drive carriage 12 from the moving direction. The figure is shown. FIG. 5 shows an enlarged view of the vicinity of the bracket 18 (horizontal guide roller bracket) shown in FIG.
[0011]
As shown in FIGS. 2 to 4, in each open / close roof drive carriage 12, two carriages 12 a and 12 b are connected by a connecting portion 13, and the open / close roof 10 is supported on the connecting portion 13. The open / close roof drive carriage 12 (carts 12a and 12b) is placed on two rails 14 via rollers 16 provided below the carriages 12a and 12b.
[0012]
A horizontal guide roller bracket 18 is provided at the lower portion of the connecting portion 13. The bracket 18 is provided with a plurality of horizontal guide rollers 20, and is inserted into a groove provided in parallel with the arrangement direction of the rails 14, that is, in the horizontal guide 30 at the center of the position where the two rails 14 are installed. Yes.
[0013]
As shown in FIG. 4, the horizontal guide 30 is provided at a position lower than the installation surface of the rail 14, and the horizontal guide roller 20 rotates in the horizontal direction symmetrically with respect to the moving direction of the open / close roof drive carriage 12. A plurality of the guides are provided so as to be capable of being pressed against the side surface of the horizontal guide 30. As a result, the movement of the open / close roof drive carriage 12 in an unauthorized direction is restricted, and the movement is made only in the direction in which the rail 14 is installed.
[0014]
The bracket 18 is formed using, for example, a steel material having a yield point of 230 N / mm ² and a tensile strength of about 300 N / mm ² , that is, an extremely low yield point steel. The bracket 18 is attached to the lower part of the open / close roof drive carriage 12 by a replaceable structure.
[0015]
Next, the effect of the open / close roof drive carriage 12 in this embodiment is demonstrated.
Since the bracket 18 provided in the open / close roof drive carriage 12 in this embodiment uses extremely low yield point steel as a material, it is suitable for wind loads caused by wind and small and medium earthquake loads applied by small and medium earthquakes. Is limited to the elastic deformation range.
[0016]
Further, when a large force is applied due to a large earthquake or the like, the bracket 18 positioned at the leg portion of the open / close roof to which the shearing force is reliably transmitted is plasticized, thereby deforming the open / close roof drive carriage 12 and the open / close roof. Since the drive carriage 12 is moved in the horizontal direction, a certain amount of input energy is absorbed.
[0017]
For this reason, a force over a certain level is not transmitted to the upper part, and the force applied to the open / close roof drive carriage 12 (part excluding the bracket 18) or the open / close roof 10 is relaxed and absorbed, and damage can be reduced to the minimum. .
[0018]
For example, by using a steel material (extremely low yield point steel) with a yield point of 230 N / mm ² and a tensile strength of about 300 N / mm ² for the bracket 18, a force caused by a huge earthquake that is about twice the design earthquake input. Analysis shows that it is possible to reduce the seismic force to about 1.3 times even if.
[0019]
Further, when the bracket 18 is destroyed due to the occurrence of a large earthquake, the bracket 18 is originally configured to be replaceable, and therefore can be easily replaced.
In this way, the material of the bracket 18 of the open / close roof drive carriage 12 for moving the open / close roof 10 is made of an extremely low yield point steel, and the bracket 18 is deformed when a large force is applied by a large earthquake or the like, thereby The drive carriage 12 is movable in the horizontal direction. By moving the open / close roof drive carriage 12 on the rail 14, the force applied by an earthquake or the like can be alleviated to some extent, and the damage to the open / close roof 10 and the open / close roof drive carriage 12 can be reduced and the occurrence of damage can be avoided. Can do.
[0020]
【The invention's effect】
As described above in detail, according to the present invention, even when a large force is applied due to a large earthquake or the like, the bracket is deformed by being constituted by an extremely low yield point steel provided at the lower part of the open / close roof driving carriage. Since the open / close roof drive carriage is movable in the horizontal direction, damage to the open / close roof and the open / close roof drive carriage can be suppressed.
[Brief description of the drawings]
FIG. 1 is a diagram showing a storage-type open / close roof structure such as a multi-purpose stadium for explaining an open / close roof drive carriage according to an embodiment of the present invention.
FIG. 2 is a plan view of the open / close roof drive carriage 12 in the present embodiment.
FIG. 3 is a side view from a direction perpendicular to the moving direction of the open / close roof drive carriage 12 in the present embodiment.
FIG. 4 is a side view from the moving direction of the open / close roof drive carriage 12 in the present embodiment.
FIG. 5 is an enlarged view of the vicinity of the bracket 18 shown in FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Opening and closing roof 12 Opening and closing roof drive trolley 13 Connection part 14 Rail 16 Roller 18 Bracket 20 Horizontal guide roller 30 Horizontal guide

Claims (1)

In the open / close roof drive carriage that moves the open / close roof while supporting the retractable open / close roof,
Two carriages each mounted on two rails via rollers,
A connecting portion for connecting the carriage and supporting the openable roof in the upper part;
A bracket formed of ultra-low yield point steel fixed by a replaceable structure at one end at the lower part of the connecting portion;
The bracket is provided with a horizontal guide roller that is inserted into a horizontal guide provided along a moving direction in order to restrict illegal horizontal movement, and is in pressure contact with a guide surface of the horizontal guide. Opening and closing roof drive cart.

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