JP3051558B2 - Open / close dome seal structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open / close dome in which a dome constituting a ceiling portion of a field is divided into a plurality of dome sections, and the plurality of dome sections are opened and closed by moving. The present invention relates to an opening / closing dome sealing structure for sealing a gap between dome sections in a closed state.

[0002]

2. Description of the Related Art In recent years, dome-shaped roofs (hereinafter, referred to as stadiums)
A dome is simply attached to the stadium to provide an all-weather stadium. Thereby, the game can be played regardless of the weather. In addition, since air conditioning can be controlled to desired temperatures and humidity, it can be used for various sports and events regardless of the season.

[0003] However, in a stadium that is always closed, it is necessary to always manage lighting, air conditioning, and the like. In order to solve this problem, open the roof if it is possible to compete outdoors, such as in fine weather. A so-called open / close dome that closes the roof when it is impossible to compete outdoors, such as in rainy weather, has been considered.

As an example of an openable dome, the dome is divided into three parts, each of which is hereinafter referred to as a dome section, and is formed into a fan shape such as a so-called ginkgo leaf. There is a structure to support above the standing wall. One of the three divided dome sections is a fixed dome section, and the arc-shaped outer peripheral portion is fixed to the upper part of the wall. The other two are movable dome sections, and the arc-shaped outer peripheral portion is connected to an arc-shaped rail provided on the upper portion of the wall, and is movable along the rail.

[0005] Since each dome section has the same shape, the movable dome section is moved so that the two movable dome sections overlap each other and further overlap the fixed dome section when opened. This allows
Two thirds of the dome is opened. Further, when closing the dome due to rainy weather or the like, the movable dome sections are moved in opposite directions with the same center of rotation, and the three dome sections are partially overlapped. This brings the dome into a fully closed state. As described above, the open / close dome can be realized by dividing the dome into a plurality of dome sections and making the dome movable.

By the way, when the dome section is divided into a plurality of dome sections, in order to prevent rain leakage and the like particularly in a closed state and to obtain a certain degree of airtightness in consideration of air conditioning efficiency, a gap between each dome section is sealed. Although necessary, the structure of this seal is problematic. For example, a seal in which the upper surface of the lower dome section and the lower surface of the upper dome section in a state where the dome is closed and the lower surface of the upper dome section are always brought into contact with each other using fins made of an elastic body or the like can be considered. Since the fins slide with opening and closing, the elastic body as the fins tends to deteriorate with time. Due to this deterioration over time, the airtightness is lost, which may cause rain leakage or the like.

For this reason, a flexible tube having a circular cross section is provided on the upper surface of the lower dome section in each gap, and after opening and closing the dome, air or the like is sent into the tube to increase the internal pressure. A seal having a structure in which the outer periphery is in contact with the lower surface of the upper dome section is considered. Accordingly, during the opening and closing operation of the dome, the inner pressure can be reduced and the outer periphery of the tube and the dome section can be separated from each other.

[0008]

However, in order to bring the outer periphery of the tube into contact with the dome section, the dimension of the tube in the gap direction when inflated must be larger than the gap between the dome sections. When air or the like is sent into the tube, pressure is evenly applied to the inner surface of the tube, and the cross section maintains a circular state and expands evenly.
The cross-sectional area of the tube when the outer periphery is in contact with the dome section is large, and the amount of air sent into the tube to bring the outer periphery of the tube into contact with the dome section is large. It takes more time to open and close the dome.

The present invention has been made in view of the above facts, and has as its object to obtain a seal structure of an open / close dome which can be brought into a sealed state in a short time and the opening / closing time of the dome can be shortened. is there.

[0010]

Means for Solving the Problems The invention according to claim 1
The dome constituting the ceiling of the field is divided into a plurality of dome sections, used for opening and closing dome that opens and closes by moving the plurality of dome sections,
A seal structure of an opening / closing dome that seals a gap between dome sections when the opening / closing dome is closed, comprising a plate disposed between the dome sections over the entire length of the gap, and a gap provided between one dome section in a closed state. Over the entire length of the dome section and towards the other dome section
An elastic member that elastically deforms in contact with the plate and seals between the one dome section and the plate, a cylinder that moves the plate so as to contact the elastic member, and
A rod, a telescopic member which expands and contracts with the movement of the plate while the seal over the entire length of the gaps between the other dome sections plate and a closed state, to have a
Features. Further, the invention according to claim 2 is a plate surface.
Has a recess for draining rainwater to the outside.
And features.

[0011]

According to the first aspect of the present invention, the one-side operation is performed in the closed state.
(For example, the upper side, hereinafter referred to as “upper side”).
To the upper dome section and the other (for example,
For example, the lower side, hereinafter referred to as “lower side”. ) Dome Sexi
Dome over the entire length of the gap with the
An elastic member is provided toward the section. Shirin
The plate is moved by the rod protruding from the
When the elastic member comes into contact with the elastic member, the elastic member is elastically deformed.
As a result, the dome section becomes the upper stage in the closed state
And the plate are sealed. Also, move the plate
The telescopic member is extended with the movement, and the
The seal between the rate and the lower dome section is sealed
You. For this reason, the upper dome section and the lower dome section
The gap with the dome section is sealed. As described above, since the sealing state can be obtained by moving the plate, there is no need to expand a member such as a tube for sealing as compared with the related art, and the sealing state can be achieved in a short time, The opening and closing time of the dome can be reduced. Also, the surface of the plate has rainwater
It is preferable that a concave portion for discharging
No.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 show a plan view and a perspective view of a dome ball field 10 according to the present embodiment. The dome stadium 10 includes a stair-shaped spectator seat 14 and a field 16 in which a competition is performed. The audience seat 14 and the field 16 are separated by a fence 18. Also,
A cylindrical wall 12 is provided around the audience seat 14 and the outer periphery of the field.
Is standing on the ground. As shown in FIG.
The upper inner peripheral side is an inclined surface, on which two grooves 20, 22 (see also FIG. 3) are provided in a circular shape with the rotation center CL as the center. Below the grooves 20, 22, a fixed dome section 26 which forms a part of the roof 24 (hereinafter referred to as a dome) of the dome stadium 10 is provided.
(Indicated by vertical hatching in Fig. 3 for easy understanding)
Is supported.

As shown in FIG. 3, the fixed dome section 26 has a fan shape whose outer shape is very similar to a ginkgo leaf, and occupies about one third of the space above the dome stadium 10. The arc-shaped portion on the outer peripheral side of the fixed dome section 26 is fixed to the wall 12. As shown in FIG. 4, a substantially V-shaped support member 28 protrudes from the wall body 12,
This support member 28 is connected to the framework of the fixed dome section 26 of the truss structure. As a result, all the load applied to the fixed dome section 26 is transmitted to the wall 12 via the support member 28.

As shown in FIG. 4, the widths of the grooves 20 and 22 on the back side of the openings are larger than the widths of the openings, and are used as the accommodating portions 34 and 36 of the supporting carriages 30 and 32. ing. Receiving part 3 in upper and lower grooves 20, 22
Rails 38 are provided at predetermined portions of the grooves 4 and 36, respectively.
2 is laid in a circular shape around the rotation center CL. A total of six rails 38 are provided in one accommodating portion, and correspond to the rollers 40 supported by the supporting carts 30 and 32, respectively. Therefore, the support cart 30,
32 is supported by six rails 38 via rollers 40.

From the support carts 30 and 32, substantially V-shaped support members 42 and 44 are projected.
2 and 44 are movable dome sections 4 of a truss structure that constitute the dome 24 together with the fixed dome section 26.
It is connected to 6, 48 frames. As a result, all the loads applied to the movable dome sections 46 and 48 are transmitted to the wall via the support members 42 and 44 and the support carts 30 and 32. In FIG. 3, the upper movable dome section 46 is hatched to the right, and the lower movable dome section 48 is hatched to the right. The fixed dome section 26 and the movable dome sections 46 and 48 are covered with an outer plate 50 (only the outer plate of the upper movable dome section 46 is shown in FIG. 4) to shield the inside and outside of the dome.

The fixed dome section 26 and the movable dome sections 46 and 48 have concentric vertical sections,
As shown in FIG. 2, a state in which the movable dome sections 46 and 48 overlap the upper side of the fixed dome section 26 is a dome open state. Movable dome sections 46, 48
Are moved along the rail 38 by the driving force of a driving unit (not shown). At this time, the upper movable dome section 46 and the lower movable dome section 48 are moved in directions opposite to each other (directions of arrows A and B in FIG. 3), and when they are rotated about 120 °, respectively, as shown in FIG. Thus, the side edges partially overlap (see FIG. 3). This state is a dome closed state.

In this dome closed state, the upper movable dome section 46 and the lower movable dome section 2
6 and a predetermined gap (dimensions C and C shown in FIGS. 4 and 5).
(For example, about 60 cm). Also, a predetermined gap (dimension C shown in FIGS. 4 and 5, for example, about 60 cm) is generated in a portion where the lower movable dome section 48 and the fixed dome section 26 overlap. On the other hand, the fixed dome section 26 has a side edge 26 that overlaps with the upper movable dome section 46 in the closed dome state.
From A, a rib 52 (see FIG. 2) is provided upright toward the upper movable dome section 46, that is, vertically upward. The upper end of the rib 52 is flush with the upper end of the lower movable dome section 48, so that the gap between the upper end of the rib 52 and the lower end surface of the upper movable dome section 46 in the dome closed state is also approximately equal. It is 60 cm.

Thus, the three dome sections 2
In the dome-closed state, the upper and lower gaps of the portions 6, 46 and 48 are constant (about 60 cm), and do not interfere with each other when the movable dome sections 46 and 48 move. In addition, movable dome section 4
In the vicinity of the rotation center CL of 6, 48, the three dome sections 26, 46, 48 are always overlapped in a plan view regardless of the positions of the movable dome sections 46, 48,
Each dome section has two gap portions (the movable dome sections 46, 4 near the rotation center CL).
8 is thin and the gap size is wide).
As shown in FIG. 5, they are connected by shock absorbers 54, 56.

As is well known, the shock absorbers 54 and 56 have a structure in which a fluid moves between two chambers divided by a piston through an orifice having a predetermined diameter to reduce an impact. This shock absorber 5
Reference numerals 4 and 56 prevent the dome sections 26, 46 and 48 from shaking and coming into contact with each other when an external disturbance such as an earthquake or a strong wind is applied in an emergency.

The dome 24 constructed as described above is opened when the weather is good such as fine weather, and is closed when the weather is bad such as rainy weather. can do.

As shown in FIG. 3, a seal portion 58 is provided substantially radially from the center of rotation CL to the arc-shaped portion on the outer peripheral side in the gap between the portions overlapping each other when the dome is closed. Hereinafter, the seal portion 58 disposed in the gap between the fixed dome section 26 and the lower movable dome section 48 will be described as an example.

As shown in FIG. 7, the seal portion 58 is composed of a tube 60 attached to the lower dome section (fixed dome section 26) and an elastic hanged from the upper dome section (movable dome section 48). And a plurality of fins 61 as members. The tube 60 and the fin 61 are connected to the movable dome section 4.
When the dome 6 and the dome 48 are moved to the closed state, the operation is performed as shown in FIG.

The tube 60 comprises a stainless steel drain plate 63 disposed between the upper movable dome section 48 and the lower fixed dome section 26 over the entire length of the gap, and a bellows made of chloroprene rubber. 62A
Is formed over the entire length of the gap.
And a pair of telescoping members 62 for sealing between the fixed dome section 26 and the fixed dome section 26. The elastic member 62 is a bellows 6
2A allows the drainage plate 63 to easily expand and contract when moved in a direction approaching and moving away from the movable dome section 48.

The fixed dome section 26 has a tube 6
Holes 64 are provided at predetermined intervals along the longitudinal direction of the tube 60 at positions corresponding to the 0 disposition portions. Each hole 64 has a cylinder rod 66 projecting into the tube 60.
A cylinder body 65 (cylinder) having a (rod) is housed. The protrusion length of the cylinder rod 66 from the cylinder body 65 can be changed by changing the pressure of the fluid contained in the cylinder body 65 by pressure changing means (not shown). A pressing plate 67 that is in contact with the inner surface of the draining plate 63 is attached to the tip of the cylinder rod 66. In a state where the dome is closed, the cylinder body 65 increases the protruding length of the cylinder rod 66. Thus, the elastic member 6
The second bellows 62A is extended and the drain plate 6
3 is moved closer to the movable dome section 48.

Further, constant load springs 68 are provided on both sides of the cylinder body 65 installation site. Cylinder rod 66
When the protrusion length of the elastic member 62 becomes smaller, the bellows 62A
Is folded, and the draining plate 63 is moved in a direction away from the fixed dome section 26. At this time, the draining plate 63 approaches the fixed dome section 26, but if it approaches more than necessary, the inner surface of the draining plate 63 comes into contact with the upper end of the constant load spring 68 to stop the movement, and damage to the tube 60 is prevented. Is prevented.

On the other hand, the fins 61 are made of chloroprene rubber and have elasticity. Since the fins 61 are suspended from the upper movable dome section 48, they protrude from the movable dome section 48 by their own weight. When the draining plate 63 is moved by the cylinder body 65 in a direction approaching the movable dome section 48, the fin 6
1 is a draining plate 6 at the tip of the tube 60
3 and the fins 61 are elastically deformed by the movement of the draining plate 63, and
3 (the state shown by the imaginary line in FIG. 7).

Such a sealing structure is provided between the upper end of the rib 52 provided on the fixed dome section 26 and the lower surface of the upper movable dome section 46, the upper surface of the lower movable dome section 48 and the upper movable dome section 46. Are also provided between the lower surface of each of them.

In the vicinity of the rotation center CL of the dome sections 26, 46, 48 to which the shock absorbers 54, 56 are attached, the dome sections overlap as shown in FIG. 8 when the dome is closed. This rotation center C
In the vicinity of L, as shown in FIG. 6 (only the tube 60 is shown), an arc-shaped seal portion 76 is disposed in a gap between the fixed dome section 26 and the lower movable dome section 48 so as to surround the shock absorber 54, Lower movable dome section 48 and upper movable dome section 46
An arc-shaped seal portion 76 is provided so as to surround the shock absorber 56 in a gap between the two.

The arc-shaped seal portion 76 on the fixed dome section 26 has a shape of about 1/2 arc, and the arc-shaped seal portion 76 on the upper surface of the lower movable dome section 48 has a shape of about 3/3.
The fixed dome section 26 and the movable dome section 48 are arranged closer to the fan-shaped arc-shaped outer periphery than the rotation center CL. The arc-shaped seal portion 76 is formed by extending the seal portion 58.

The rib 5 of the fixed dome section 26
A vertical wall tube 84 is attached to the side wall 78 (see FIG. 9) of the second movable dome section 48 corresponding to the vertical wall tube 84 mounting portion of the rib 52 when the dome is closed. 9) to the vertical wall tube 86
Is installed. The vertical wall tubes 84 and 86 constitute a vertical wall seal portion 82, and each end is closed.

The side wall 78 of the rib 52 and the side wall 80 of the movable dome section 48 are separated when the dome is opened,
When the dome is closed, they approach each other, but when the vertical wall tubes 84 and 86 come into contact with each other in the dome closed state, the gap between the vertical walls 78 and 80 is sealed. The seal portion 58, the arc-shaped seal portion 76, and the vertical wall seal portion 82
When the dome is closed, the shape shown in FIG. 6 is obtained, and the gaps between the three dome sections 26, 46, and 48 can be completely filled.

As shown in FIG. 9, holes 88 are provided at a plurality of positions along the longitudinal direction of the vertical wall tubes 84 and 86 at the positions where the vertical wall tubes 84 and 86 are provided on the vertical walls 78 and 80. . A cylinder rod 90 penetrates the hole 88, and the cylinder rod 90 is connected to the vertical wall tubes 84, 8
6 protrudes. The cylinder body 92 is provided with the vertical wall portion 7.
The cylinder rod 90 is fixed to the side opposite to the side on which the vertical wall tubes 84 and 86 are disposed, and the cylinder rod 90 can be expanded and contracted by hydraulic pressure. A pressing plate 94 is attached to the distal end of the cylinder rod 90, and the pressing plate 94 presses the vertical wall tubes 84 and 86 in the horizontal direction by extending the cylinder rod 90 in the dome closed state. Has become. As a result, the vertical wall tubes 84 and 86 are in close contact with each other without dropping due to gravity.

Next, the operation of this embodiment will be described. When the weather is fine or the like, the movable dome sections 46 and 48 are overlaid on the fixed dome section 26 over the entire surface as shown in FIG. As a result, the upper part of the audience seat 14 and the field 16 surrounded by the wall body 12 is opened about two thirds, so that a feeling of opening can be provided. Also,
By opening the dome 24, there is no need to operate air conditioning or the like, and it is not necessary to turn on the lighting during the day, so that energy saving can be realized. At this time, the cylinder body 6
The projecting length of the cylinder rod 66 from the position 5 is small, and the draining plate 63 is held at the position shown by the solid line in FIG. Further, since the side wall 78 and the side wall 80 are separated from each other,
Neither does the side wall tube 84, 86 contact.

When the weather is rainy or the like, driving means (not shown) is driven, and the supporting carts 30, 32 supporting the movable dome sections 46, 48 move along the rails 38. In this movement, the upper movable dome section 46 and the lower movable dome section 48 rotate in directions opposite to each other (directions of arrows A and B in FIG. 3). By the rotational movement of the movable dome sections 46 and 48,
The overlapping portions of the movable dome sections 46 and 48 with the fixed dome section 26 gradually decrease. When each of the movable dome sections 46 and 48 rotates about 120 °, a part of the outer edge of the upper movable dome section 46 and the lower movable dome section 48 (a side portion continuous from the vicinity of the rotation center CL to the outer periphery). Overlap. As a result, a dome 24 is formed above the spectator seat 14 and the field 16 surrounded by the wall 12 and is closed.

Incidentally, the movable dome section 4
During the rotation of the fins 61 and 48, the fins 61
Since there is no contact or sliding with other members including the fins 3, the seal portion 58 including the fins 61 is not damaged or deteriorated with time due to sliding. However, in this state, a gap is formed between the dome sections 26, 46, and 48 (about 60 cm), which causes a decrease in airtightness and a leak of rain.

For this reason, in the present embodiment, the dome 24 is formed by the rotational movement of the movable dome sections 46 and 48, and after the tube 60 and the fin 61 correspond to each other, the projecting length of the cylinder rod 66 from the cylinder body 65. And the draining plate 63 is moved so as to approach the upper dome section opposed to the dome section across the gap. By this movement, the drain plate 63 comes into contact with the tips of the fins 61 provided in the upper dome section, and the drain plate 63 is further moved, so that the fins 61 are moved.
Are elastically deformed and adhere to each other.

In this state, since the space between the lower dome section and the drain plate 63 is sealed by the elastic member 62, the gap between the dome sections is sealed over the entire length of the gap. As described above, since the sealing state can be obtained by moving the draining plate 63, the sealing state can be achieved in a shorter time as compared with the related art, and the opening and closing time of the dome can be reduced. If rainwater or the like enters the seal portion 58 in this sealed state, the rainwater is drained by a drainage means (not shown) provided on the drain plate 63.

The overlapping portion of each dome section can be reliably sealed by the seal portion 58, but there is also a gap at the center of rotation of the movable dome sections 46 and 48. Gaps also need to be sealed. Further, since each dome section is thick, the vertical wall 78 of the flange 52 and the dome 2
It is necessary to seal the space between the lower movable dome section 48 and the side wall 80 which approaches and separates in accordance with the opening and closing of the fourth movable dome section 48.

For this reason, in this embodiment, the tube 60
Around the fins 61 (not shown), the arc-shaped seal portions 76 are provided so as to surround the shock absorbers 54, 56, and the vertical wall tubes 84, 86 are provided on the vertical walls 78, 80, respectively. (See FIG. 6). That is, an arc-shaped seal portion 76 is continuously provided around the position where the shock absorber 54 is attached to the fixed dome section 26, and its end is connected to the tube 60 of the seal portion 58 between the fixed dome section 26 and the lower movable dome section 48. Connected to.
Further, apart from the tube 60 disposed along the tip of the rib 52 of the fixed dome section, the side wall 78 of the rib 52
The vertical wall tube 84 was disposed.

A seal 58 between the lower movable dome section 48 and the upper movable dome section 46
An arc-shaped seal portion 76 is arranged around the rotation center of the lower movable dome section 48 continuously to the tube 60 of the lower movable dome section 48.
A vertical wall tube 86 was provided separately from the tube 60. Thereby, the seal around the shock absorbers 54 and 56 is completed, and it is possible to maintain the airtightness and prevent rain leakage and the like.

Also, the movable dome section 4 of the present embodiment
The rotation centers of 6, 48 are shock absorbers 54, 56
Therefore, even if each dome section swings in an emergency such as an earthquake or a strong wind, the swing can be reduced and no trouble such as contact with each other occurs.

In this embodiment, the fins 61 are used as the elastic members. However, any fins may be used as long as they can contact the draining plate 63 and can be elastically deformed and adhered. For example, a tube filled with air and elastically deformable can be used. Can be used.

In this embodiment, the draining plate 63 is moved by the cylinder body 65 and the cylinder rod 66. However, the present invention is not limited to this. For example, air is fed into the tube 60. Thus, the tube 60 may be expanded and the draining plate 63 may be moved. Also in this case, the bellows 62 formed on the elastic member 62 does not cause the tube 60 to expand in a direction other than the direction in which the tube 60 approaches the opposing dome section, and the drain plate 63 is moved in a short time to be in a sealed state. .

[0044]

As described above, according to the present invention, the plate is disposed over the entire length of the gap between the dome sections, and the plate is disposed over the entire length of the gap in the upper dome section when the opening / closing dome is closed. Since an elastic member is provided, the space between the plate and the lower dome section in the closed state is sealed by the elastic member over the entire length of the gap, and the plate is moved so as to contact the elastic member. It is possible to obtain an excellent effect that the sealing state can be achieved in a short time and the opening and closing time of the dome can be shortened.

[Brief description of the drawings]

FIG. 1 is a plan view of a dome stadium showing a closed state of the dome by imaginary lines.

FIG. 2 is a perspective view of a dome stadium in a dome closed state.

FIG. 3 is a plan view of a dome stadium in a closed state of the dome.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1 in a state where the dome is opened.

FIG. 5 is a side view showing only a skeleton of a dome rotation center in a dome opened state.

FIG. 6 is a perspective view showing the arrangement of a seal portion near the center of rotation of the dome section in the dome closed state.

FIG. 7 is a sectional view of the seal section taken along line VII-VII in FIG. 3;

FIG. 8 is a plan view showing an arrangement of a seal portion at a rotation center portion of the dome section in a dome closed state.

FIG. 9 is a sectional view of a vertical wall sealing portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Dome stadium 24 Dome 26 Fixed dome section 46 Movable dome section 48 Movable dome section 58 Seal part 62 Elastic member 63 Drain plate (plate) 61 Fin (elastic member) 65 Cylinder main body (moving means) 66 Cylinder rod (moving means)

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hideo Sato 2-5-1-14 Minamisuna, Koto-ku, Tokyo Inside Takenaka Corporation Technical Research Institute (56) References JP-A-3-93936 (JP, A) ( 58) Field surveyed (Int. Cl. ⁷ , DB name) E04B 7/16

Claims (2)

(57) [Claims] A dome constituting a ceiling portion of a field is divided into a plurality of dome sections, and the dome section is used as an open / close dome which is opened and closed by moving, and each dome is closed in the closed state of the open / close dome. A seal structure of an opening / closing dome for sealing a gap between sections, wherein a plate disposed between the dome sections over the entire length of the gap, and wherein the one dome section in the closed state extends over the entire length of the gap. And towards the other dome section
An elastic member that elastically deforms in contact with the plate and seals between the one of the dorm sections and the plate; a cylinder and a rod that moves the plate so as to contact the elastic member. , closing dome and having a a telescopic member which expands and contracts with the movement of the plate with sealing over between said other dome section the length of the gap in the closed position and the plate Seal structure. 2. The surface of the plate is provided with rainwater outside.
A concave portion for discharging is formed.
Item 2. An opening / closing dome seal structure according to Item 1.