JP2000240209A - Foldable retractable roof device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foldable roof preventing application of excessive stress to a pin in a hinge even when a member arranged between travel paths on both left and right sides of the roof is deflected. SOLUTION: A foldable type retractable roof device is provided with a supporting shaft 18 journalled freely rotationally to left and right traveling bodies traveling on parallel travel paths in the edges of the opening part of a roof and a hanger trussed girder 12 supported above the center of gravity in the supporting shaft 18 so as to be always kept vertically. A great number of the hanger trussed girders 12 are arranged movably in the longitudinal direction, and between the hanger trussed girders 12 in the front and back sides, a joint member 13 bendable upward when an interval of between the trussed girders 12 is arranged via hinges 22, 23. At the same time, a film material 14 constituting a roof is arranged above the joint member 13, and a great number of the joint members 13 are arranged independently of each other while spaced laterally between the hanger trussed girders 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding openable roof, and more particularly to an apparatus suitable for a large-scale bellows type folding openable roof.

[0002]

2. Description of the Related Art In recent years, large-scale buildings in which all or part of the roof is openable and closable have become widespread as exercise facilities or multi-purpose facilities.
Some roofs are made openable by moving between a fixed roof opening and a storage position above or below the fixed roof.

[0003] However, in this example, it is necessary to provide a storage position above or below the fixed roof, so that the opening ratio of the roof is limited and a large space is required for storage of the movable roof. In view of the above, Japanese Patent Laid-Open No. 10-102666 discloses a foldable opening / closing roof which can reduce the length of the moving roof when storing the moving roof to reduce the storage space.
Has been proposed as described in Japanese Patent Application Publication No.

In this foldable roof, a large number of opening / closing units are arranged in front and rear directions, which are extending directions of the running path, between running paths parallel to each other along right and left edges of the opening of the roof. It is established. The opening / closing unit is configured such that upper ends of a pair of panel-shaped opening / closing frames formed of a flat truss elongated in the left-right direction are pivotally connected to each other, and both opening / closing frames can be opened and closed on the lower side. The lower portions of the two open / close frames are connected by an extendable connecting member so that the opening / closing can be performed, and a substantially triangular shape is formed by the open / close frame and the connecting member forming the base in the cross section. . The front and rear opening / closing units having a substantially triangular cross section are continuous at the lower end of the opening / closing frame to form a folding open / closed roof that is continuous in a bellows-type as a whole.

[0005]

In the open / close roof disclosed in the above-mentioned publication, both open / close frames pivotally connected to each other to open and close are formed in a panel shape composed of a flat truss which is long in the left and right directions between the left and right running paths. Because of the configuration, the two opening and closing frames have a so-called rigid structure. For this reason, when a large-sized opening / closing roof having a large opening has a large opening / closing frame, the length of the opening / closing frame also becomes large, so that the opening / closing frame is bent, and excessive shear is applied to hinge pins that pivot the opening / closing frames. Force will be applied. For this reason, if the rigidity of the flat truss of the opening and closing frame is increased to prevent the bending, there is a disadvantage that the amount of steel frames is increased, which is disadvantageous structurally and economically.

Since the bellows-type opening / closing roof has a panel-like opening / closing frame having high rigidity as described above, the left and right driving devices for moving these along the traveling path are used. The control is required to be precise so as not to cause distortion in each opening and closing frame. Particularly, in the case of a sloping road where the gradient of the traveling path varies depending on the position, the traveling resistance varies. Therefore, it is necessary to control the driving forces to be balanced so that there is a problem that the control of the driving device becomes complicated.

Further, since the bellows-type opening / closing roof changes the inclination angle of the opening / closing frame due to the change of the gradient of the traveling path during movement, there is also a disadvantage that the structural stability is low in this respect as well. . Therefore, an object of the present invention is to provide a folding roof that does not apply an excessive force to a hinge pin for opening and closing even if a member provided between the left and right running paths is bent, Another object of the present invention is to obtain a lightweight folding roof having a small amount of steel frames even on a large-scale open / closed roof having a large span of the left and right running paths. It is an object of the present invention to obtain a folding roof which is small in size and easy to control the driving of the left and right driving devices. An object of the present invention is to obtain a folding roof with high structural stability even when moving without a large change in the roof.

[0008]

In order to achieve the above object, the invention according to claim 1 comprises a left and right parallel running path respectively provided along opposing parallel edges of a roof opening. A left and right traveling body that individually travels on each traveling path, a support shaft rotatably supported by the left and right traveling bodies and having an axis oriented in the left and right direction, and a length corresponding to the width of the opening. And a hanger truss beam that is supported above the center of gravity on the support shaft and always keeps vertical, so that the hanger truss beam is supported by the traveling body via the support shaft in a vertical state and can move back and forth on the running path It is configured. In addition, a number of moving units including left and right traveling bodies, support shafts, and hanger truss beams are provided so as to be movable in the front-rear direction, and between each hanger truss beam of the front and rear moving units, both hanger trusses are provided. A foldable opening / closing roof is configured by providing a connecting member that can be bent when the interval becomes narrow and arranging a roofing material above the connecting member. The refraction of the linking material is preferably refraction upward or downward, but may be refraction left and right.

According to the first aspect of the present invention, the hanger truss beam, which is one of the front and rear ends, is moved back and forth by connecting a driving device to the hanger truss beam, its support shaft or traveling body. By this, the interval between the hanger truss beams connected in front and back via the connecting material is sequentially expanded, the roof is closed while the connecting material is extended, or the interval is sequentially reduced,
The ties will bend and the roof will be folded open. In this case, when closing the roof, the preceding hanger truss beam at the front end in the moving direction pulls the next hanger truss beam via the connecting material, so that the connecting material is extended,
Conversely, when the roof is opened, when the hanger truss beam at the rear end in the moving direction approaches the hanger truss beam at the front side in the moving direction, the linking material is bent, and the front hanger truss beam is pressed as it is.

Since the hanger truss beams are always kept vertical even when the slope of the traveling path fluctuates depending on the position, the movement of the hanger truss beams and the bending and elongating operation of the connecting member are always stable. It will be. A pair of foldable roofs can be installed in one opening of the roof so that the entire opening can be opened and closed, and another foldable roof can be installed in the longitudinal direction of the traveling path. By providing a pair in the front-rear direction, it is possible to provide a double-opening roof.

The invention described in claim 2 is the first invention.
In the above invention, the connecting member is configured to be able to bend upward by a hinge, and the connecting member is separated from each other at a plurality of positions in the longitudinal direction of the hanger truss beams by suspending the connecting members independently from each other. Many have been installed between truss beams. According to the second aspect of the invention, there is the following operation in addition to the operation of the first aspect of the invention. That is,
Since the connecting material that can be bent upward by the hinge is independently provided between the front and rear hanger truss beams at a number of locations in the longitudinal direction of the beam (ie, in the left-right direction of the opening),
The amount of deflection or distortion of the hanger truss beam at each hinge portion is negligibly small, and therefore, the shear force applied to each hinge pin is small. For this reason, the hanger truss beam is allowed to bend or warp, so even on an open / closed roof where the span between the left and right running paths is large, the amount of steel frames can be suppressed and the weight can be reduced, and Asynchronization of the left and right traveling bodies is also allowed, and the control of the driving device of the hanger truss beam is facilitated. In addition, since no excessive force is applied to the hinge pin, the bending and elongating operation of the connecting member can be smoothly performed in this respect as well.

Further, the invention described in claim 3 is the first invention.
Alternatively, in the invention according to claim 2, the connecting member is hinged to a front hanger truss beam by a hinge and protruded rearward to form an upper chord member, and a front hanger truss beam. The rear beam, which is hinged to the front and protrudes forward and forms the upper chord, and the front end of which is hinged to the front beam, and the hinge portion which pivotally connects the front and rear beams. The attached bundle and the lower part of the bundle and the front and rear hanger truss beams are respectively placed between the lower part of the bundle and the hanger truss beams at a position below the small beam, and bear the tension so that the distance between them does not exceed a predetermined value. The front and rear hanger truss is composed of the front and rear lower chord members, and the pivoting position of the front and rear small beams is arranged above the line connecting the pivot positions of the front and rear hanger truss beams and the front and rear small beams. When the interval between the beams is reduced, the front and rear small beams are bent upward.

According to the third aspect of the present invention, the following operation is obtained in addition to the operation of the first or second aspect. That is, the pivot position of the small beams is positioned higher than the line connecting the pivot positions between the front and rear small beams and the front and rear hanger truss beams, and the distance between the front and rear hanger truss beams is increased and the front and rear hanger truss beams are widened. Even when the folding roof is closed due to the extension of the beam, the relationship of the pivot position is maintained by the front and rear lower chords, so that when the front and rear hanger truss beams relatively approach when the folding roof is opened, the front and rear small beams. Are easily bent upward, so that the folding roof can be easily and reliably opened. In addition, when the folded roof is closed, tension is applied to both the front and rear lower chords. In this state, the position of the pivotal connection between the upper chords and the position of the end of the lower chords on the bundle side are different. Specified. Then, the posture of the bundle is specified by specifying these two positions. Further, by using the stringing beams as the connecting member, the weight of the member can be reduced, and economical design can be achieved.

Further, according to a fourth aspect of the present invention, in the third aspect of the present invention, the upper end of the bundle is protruded higher than both the small beams, and the hangers are arranged forward and backward through the upper side of the bundle. A membrane material is stretched between the truss beams as a roof material, and the distance between the fixing position of the membrane material on the hanger truss beam and the upper end of the bundle is maximized when the distance between the front and rear hanger truss beams is the maximum. Things.

According to the fourth aspect of the present invention, in addition to the function of the third aspect, when the distance between the front and rear hanger truss beams is maximum, that is, when the folding roof is closed, the membrane material is moved forward and backward. If it is stretched between beams, if the distance between the front and rear hanger truss beams becomes narrow, that is, if the membrane can be loosened when the folded roof opens, it will be automatically stretched when the roof is closed. No wrinkles appear on the membrane roof.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention, and FIG. 1 is a perspective explanatory view of a foldable roof device. Here, a single-sided foldable openable / closable roof 15 over the entire length of the left and right traveling rails 11 is used, which is partially closed for convenience of description, opened in another part, and further opened in another part. Is omitted. In FIG. 2, one open / close roof 15 is installed on the left and right traveling rails 11, and for convenience of explanation, the left half of FIG. 2 is opened by moving the entire open / close roof 15 to the left. The entire roof in the state is shown, and the right half of FIG.
Shows about half of the closed roof. In the present invention, both the single-opening and double-opening roofs 15 are included, but the following description will be made based on a single-opening embodiment in which one openable roof 15 is installed on the traveling rail 11.

In this embodiment, the main body of the building is omitted, and only the fixed roof 16 is shown in FIG. 3. However, the building may be a large facility such as a sports facility, a concert hall, or a multipurpose hall. Can be applied to various types of buildings. A flat rectangular opening 26 is opened at the center of the fixed roof 16, and a keel truss 10 is installed below the fixed roof 16 along the edge of the long side of the opening 26. Keel truss 1
Both ends of 0 are supported by load-bearing portions such as columns in the building, and the load-bearing portions support the loads of the foldable openable roof 15 and the fixed roof 16 via the keel truss 10.

A fixed roof 16 is provided above the keel truss 10.
A traveling rail 11, which is a traveling path, is provided at the edge of. The running rail 11 is parallel to the left and right long sides of the opening 26 in plan view, and the fixed roof 16 has a high center portion and a low peripheral portion. Following that, it has an arch shape in side view.

A traveling body 17 is movably engaged with the traveling rail 11 along the traveling rail 11. As will be described later, the traveling body 17 at the end of the many traveling bodies 17 engaged with the traveling rail 11 will be described later. A driving device for driving the vehicle 17 is connected to 17. As the driving device, any device can be employed as long as it can apply a force for pushing and pulling the traveling body 17, but a winch for winding and unwinding the wire rope connected to the traveling body 17 can also be used. One of them. Also in this case, the inclined traveling rail 1
(1) When traveling on the upper side, it is possible to select a type in which the winch is taken up and driven up, and a winch is taken out in the downward direction to run the vehicle by its own weight, or a type in which the driving force of the winch is used for both reciprocation. . Running body 1
As the member 7, any member that can move along the traveling rail 11 while being engaged with the traveling rail 11, such as a member that rolls the traveling rail 11 or a member that slides, can be used.

An end of a support shaft 18 whose axis extends in the left-right direction is rotatably supported on the traveling body 17. In the illustrated embodiment, the support shafts 18 are individually supported by the left and right traveling bodies 17, and the axes of the left and right support shafts 18 are on the same straight line. However, the left and right support shafts 18 are one continuous shaft. Is also good. The hanger truss beams 12 having a length corresponding to the width of the opening 26 of the fixed roof 16 are fixed to the left and right support shafts 18.
Thus, the hanger truss beam 12 is supported by the traveling body 17 so as to be rotatable around the axis of the support shaft 18. Thus, the moving unit including the left and right traveling bodies 17, the support shaft 18, and the hanger truss beam 12 can move back and forth along the traveling path 11. On the other hand, the position of the center of gravity of the hanger truss beam 12 is set lower than the support shaft 18, and the hanger truss beam 12 is supported by the support shaft 18 regardless of the inclination of the traveling body 17 moving on the inclined traveling rail 11 in the front-rear direction. 18 so that a vertical posture is always maintained. Although the right end portion of the hanger truss beam 12 is shown in FIG. 7, the left end portion appears symmetrically with this.

The upper surface of the hanger truss beam 12 is wide, and at the center in the width direction is provided a working path 27 which is continuous in the longitudinal direction of the beam. On both sides of the working path 27, rising members 28 are erected. Thus, this constitutes a film material fixing section 24 which also serves as a handrail of the work path 27, which will be described later. Also,
A work path 29 is also formed on the lower upper surface of the hanger truss beam 12. The symbol P on the work paths 27 and 29 indicates a worker.

A number of moving units including the left and right running bodies 17, the support shaft 18, and the hanger truss beams 12 are arranged before and after the running rail 11 as described above. A connecting member 13 is provided between the hanger truss beams 12 of the front and rear moving units, and a film member 14 constituting a roof is provided above the connecting member 13. A large number of the connecting members 13 are provided between the hanger truss beams 12 at a plurality of positions in the longitudinal direction of the beams 12 independently of each other.

The connecting member 13 will be described in detail. The connecting member 13 is pivotally connected to the front hanger truss beam 12 by a hinge 22 and protrudes rearward to form a front small beam 19 forming an upper chord member. A rear beam 19 pivotally attached to the rear hanger truss beam 12 with a hinge 22 and protruding forward to form an upper chord member, and a front end pivotally connected to the front beam 19 with a hinge 23;
A bundle 20 attached to a hinge 23 for pivotally connecting the front and rear beams 19 and a lower portion of the bundle 20 and a front and rear hanger truss beam 12 at a position below the beams 19. The lower chord material 21 before and after the tension is applied so that the distance between them does not exceed a predetermined value. Thereby, the pivot position of the front and rear small beams 19 is arranged above the line connecting the pivot positions of the front and rear hanger truss beams 12 and the front and rear small beams 19, and the front and rear hanger truss beams 12 The front and rear small beams 19 are configured to bend upward when the interval becomes narrow. The lower chord material 21 is specifically made of a wire rope, and the lower chord material 21 is loosened when the front and rear small beams 19 are bent upward.

Hinge 2 for pivotally connecting front and rear beams 19
Reference numeral 3 denotes front and rear small plates 23a, 23a for individually supporting hinge pins corresponding to the front and rear small beams 19, 19;
Vertical bar 2 extending downward with 3a and 23a provided before and after the upper end
3b. The bundle member 20 connects a rectangular upper frame 20a located above the tips of the small beams 19, and four corners of the upper frame 20a and upper portions of the vertical bars 23b of the hinge 23. Book short bar 20b and the upper end frame 2
It comprises four long rods 20c connecting the four corners 0a and the lower part of the vertical rod 23b. The short rod 20b and the long rod 20c extend via the left and right sides of the small beam 19. Further, a bar-shaped fixing portion 2 is provided on the front and rear sides of the upper end frame 20a.
4 are provided extending in the left-right direction and in parallel with each other.

Thus, the middle portion of the bundle 20 in the up-down direction is supported at the lower end of the short bar 20b on the upper portion of the vertical bar 23b of the hinge 23 pivotally connecting the front and rear small beams 19, while Since the lower end is supported by the lower part of the vertical bar 23c and is connected to the lower chord member 21 before and after, the tension of the lower chord member 21 before and after the opening and closing roof 15 is closed when the space between the front and rear hanger truss beams 12 is widened. Thus, the lower end position of the bundle 20 is specified. Thus, the bundle 20
Since the middle position and the lower end position are specified,
When 5 is closed, the relative posture of the bundle 20 is specified. The bundle 20 of this embodiment is in a vertical position with respect to a line connecting the hinges 22 at which both the small beams 19 are pivotally connected to the front and rear hanger truss beams 12.

The membrane 14 constitutes the main body of the roof, and is stretched between the front and rear hanger truss beams 12. The rising member 28 is provided upright on the upper surface of the hanger truss beam 12 as described above.
The film material 14 is stretched between the rising members 28. At the upper end of each rising member 28, a fixing portion 24 of the film material 14 is formed. The film material 14 is fixed to the upper ends of both rising members 28 at the front and back, and is fixed to the fixing portion 24 at the upper end of the bundle 20 at the middle. ing. In addition, the end of the hanger truss beam 12 at the last end is
The membrane material 14 is stretched between the fixed roof 16 and the building body.

When the open / close roof 15 is closed, it is raining between the open / close roof 15 and the fixed roofs 16 on the left and right thereof, and between the open / close roof 15 and the fixed roof 16 before and after the open / close roof 15 or the building body. Of course, the end is given. Here, the distance between the fixing portion 24 at the upper end of the rising member 28 and the fixing portion 24 of the bundle 20, the distance between the pins of the hinges 22 and 23 at both ends of the small beam 19, the pin of the hinge 22 and the fixing portion of the rising member 28. 24 and the hinge 2
The relative relationship such as the distance between the pin 3 and the fixing portion 24 of the bundle 20 is shown in FIG. 5, so that the fixing portion 24 of the film material and the bundle 2
The distance between the fixing member 24 and the fixing member 24 is set to be maximum. When the opening / closing roof 15 is closed, the film material 14 is given tension, and when the opening / closing roof 15 is open, the film material 14 is slightly applied. Is caused to loosen.

The hanger truss beam 12 forming one of the front and rear ends of the open / close roof 15 is moved to the front or rear by driving a driving device connected to the traveling body 17 of the hanger truss beam 12. And the distance between the hanger truss beams 12 connected in front and back via the connecting material 13 is sequentially widened, and the connecting material 13 is extended and the roof 15 is closed, or the space is sequentially reduced, and the connecting material 13 is bent and the roof 15 is bent. Will be folded open.

In this case, when the opening / closing roof 15 is closed, the preceding hanger truss beam 12 at the front end in the moving direction pulls the next hanger truss beam 12 via the connecting material 13 so that the connecting material 13 is extended (FIG. 5 as indicated by the solid line). Conversely, when the openable roof 15 is opened, the hanger truss beam 12 following the rear end in the moving direction approaches the hanger truss beam 12 on the front side in the moving direction, so that the connecting member 13 is bent (the state shown by the broken line in FIG. 5). ), The front hanger truss beam 12 is pressed as it is. Thus, the opening and closing of the opening / closing roof 15 is performed by sequentially moving each hanger truss beam 12 from the hanger truss beam 12 at the end to the hanger truss beam 12 at the other end.

At this time, the hanger truss beam 12 always keeps vertical even in the case of an inclined road in which the slope of the traveling rail 11 fluctuates depending on the position as in this embodiment. Is always stable. A large number of the connecting members 13 are arranged between the front and rear hanger truss beams 12, and these are provided between the hanger truss beams 12 at predetermined intervals over the left and right and independently of each other. 22
The bending and distortion of the hanger truss beam 12 at the portion of the above-mentioned portion are negligibly small, and therefore, the shearing force applied to the pin of each hinge 22 is small.

As described above, since the hanger truss beam 12 is allowed to be bent or distorted, the left and right traveling rails 11 are required.
Even if the opening / closing roof 15 has a large span, the amount of steel frames can be suppressed to reduce the weight, and the left and right running bodies 1 can be reduced.
7 also does not need to be tuned with high precision, so that control of the driving device of the hanger truss beam 12 is also facilitated. Also, since excessive force is not applied to the pins of the hinge 22, the connecting members 13
The bending and elongating operation of the lens becomes smooth in this respect as well. Further, since the connecting member 13 is made of a lightweight and low-rigidity member, it follows the deflection of the hanger truss beam 12 and cannot be moved by the hinges 22 and 23 even when the right and left traveling bodies 17 travel unbalanced. Power is not applied, enabling economical design.

The front and rear small beams 19 of the connecting member 13 are also provided.
The position of the pin of the hinge 23 connecting the small beams 19 to each other is set to be higher than the line connecting the pins of the hinge 22 between the front and rear hanger truss beams 12, and the interval between the front and rear hanger truss beams 12 is increased. When the open / close roof 15 is closed due to the extension of the front and rear small beams 19, the relationship between the positions of the pins is maintained by the tension of the front and rear lower chord members 21.
When opening and closing the roof 15, the hanger truss beams 12 before and after
Is relatively bent, the front and rear small beams 19 are easily bent upward, so that the opening and closing roof 15 can be easily and reliably opened.

When the open / close roof 15 is closed, tension is applied to the front and rear lower chords 21. In this state, the hinge 23 between the small beams 19 and the bundle 2 of the lower chords 21 are applied.
The position of the end on the zero side is specified. Then, the posture of the bundle 20 is specified by specifying these two positions.
On the other hand, when the open / close roof 15 is open, the tension of the lower chord member 21 is released, but the hinge 23 is restrained between the small beams 19, so that the posture of the bundle member 20 does not change significantly (FIG. 5).

In the above embodiment, a pair of foldable open / close roofs 15 is installed in one opening 26 of the fixed roof 16 so as to be opened in one side, so that the entire opening 26 can be opened and closed. In the case where the two foldable openable roofs 15 are provided in a pair in the front-rear direction to open both sides, when the roof is closed, the hanger truss beams 12 forming the moving front ends of the openable openable roofs 15 are joined together. For this reason, between the hanger truss beams 12 to be joined, one beam 12 is provided with an eave or the like reaching the upper surface of the other beam 12, or at least the joining surface of the hanger truss beams 12 is provided with rubber weather. By providing a strip (seal material), it is assumed that a rain break between both hanger truss beams 12 is performed. Further, a lock mechanism is provided so that the hanger truss beams 12 can be joined to each other until the operation of opening both the openable roofs 15 is started, and the lock mechanism is interlocked with a driving device of the traveling body 17. It is preferable that the lock mechanism is released when the driving device starts driving to open the openable roof 15.

[0035]

As described above, according to the first aspect of the present invention, the hanger truss beams are always kept vertical even when the slope of the traveling path varies depending on the location. Thus, there is an effect that the bending and elongating operation of the connecting member are always stable, and the opening and closing roof has high structural stability.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the amount of bending or distortion of the hanger truss beam at each hinge portion of the connecting member and the front and rear hanger truss beams is further increased. Is negligibly small, so the shear force applied to each hinge pin is small. For this reason, hanger truss beams are allowed to bend and warp,
Even on an open / closed roof with a large span between the left and right running paths, it is possible to reduce the weight by reducing the amount of steel frames, and also allow the left and right running bodies to be out of synchronization. Control of the driving device is also facilitated. Also, the weight of the hanger truss beam can be reduced to reduce the size of the left and right driving devices, and as described above, since excessive force is not applied to the hinge pin, the bending and extension of the connecting member can be performed in this respect. There is a smooth effect.

According to the third aspect of the present invention, in addition to the effect of the first or second aspect, the front and rear small beams forming a connecting member between the front and rear hanger truss beams open the folding roof. Since the hanger truss beams are sometimes easily bent upward by the relative approach of the front and rear hanger truss beams, there is an effect that opening of the folding roof can be easily and surely performed. In addition, by using the stringing beams as the connecting member, there is an effect that the members can be reduced in weight and economical design can be performed.

Further, according to the invention described in claim 4, in addition to the effect of claim 3, even if the membrane material can be loosened when the folding roof is opened, automatic operation is performed when the roof is closed. Since the film material is naturally stretched, there is no wrinkle on the film roof, and there is an effect that the appearance can be excellent.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of an open / close roof, showing a case where a single-opening foldable open / close roof is used.

FIG. 2 is a side view of the openable / closable roof, using a single-opening foldable openable / closed roof; the left half shows the open state, and the right half shows the closed state.

FIG. 3 is a longitudinal sectional view of the openable roof and the fixed roof in a direction along a hanger truss beam.

FIG. 4 is an explanatory view showing a relationship between two hanger truss beams and a connecting member therebetween, wherein a left half is a plan view and a right half is a plan sectional view at a lower portion of the hanger truss beam.

FIG. 5 is an enlarged side view showing a relationship between two hanger truss beams and a connecting member therebetween.

FIG. 6 is a perspective view of a main part of FIG. 5;

FIG. 7 is an explanatory diagram showing a relationship between a right end portion of a hanger truss beam and a fixed roof.

[Description of Signs] 11 Running rail (running path) 12 Hanger truss beam 13 Connecting material 14 Membrane material 15 Opening / closing roof 16 Fixed roof 17 Running body 18 Support shaft 19 Beam (upper chord material) 20 Bundle material 21 Wire rope (lower chord material) 22, 23 hinge 24 fixing part of membrane material 26 opening of fixed roof

Claims (4)

[Claims] 1. A left and right parallel traveling path provided along opposing parallel edges of an opening of a roof, a left and right traveling body individually traveling on each traveling path, and a left and right traveling body. It has a support shaft that is movably supported and whose axis is oriented in the left-right direction, and a hanger truss beam that has a length corresponding to the width of the opening and is supported by the support shaft above the center of gravity and always keeps vertical. The hanger truss beam is supported by the traveling body via the support shaft in a vertical state and is configured to be able to move back and forth on the traveling path,
A number of mobile units consisting of left and right traveling bodies, support shafts, and hanger truss beams are arranged so as to be movable in the front-rear direction. A foldable opening / closing roof, wherein a connecting material that can be bent when the space becomes narrow is provided, and a roofing material is disposed above the connecting material. 2. A hanger truss beam, wherein the connecting member is configured to be able to bend upward by a hinge, and the connecting member is independent of each other at a plurality of locations in the longitudinal direction of the beam between the hanger truss beams. The foldable opening / closing roof according to claim 1, wherein a number of the foldable opening / closing roofs are provided. 3. The connecting member is hinged to a front hanger truss beam and hinged to a rear small hanger truss beam that is protruded rearward to form an upper chord member. And a bracelet attached to a hinged part which is formed on the front side and forms a chord material and has a front end pivotally connected to the front beam by a hinge, and a hinge part which pivotally connects the front and rear beams. And a lower chord material before and after the lower chord material that is laid between the lower part of the bundle and the front and rear hanger truss beams at a position below the small beam and bears tension so that the distance between them does not exceed a predetermined value. Consisting of
When the pivot position of the front and rear small beams is placed above the line connecting the pivot positions of the front and rear hanger truss beams and the front and rear small beams, and the distance between the front and rear hanger truss beams is reduced. The foldable roof according to claim 1 or 2, wherein the front and rear small beams are bent upward. 4. An upper end of the bundle is protruded higher than both small beams, and a film is stretched as a roof material between the front and rear hanger truss beams via the upper side of the bundle, and a front and rear hanger truss beam is provided. The foldable opening / closing roof according to claim 3, wherein the distance between the fixing position of the membrane material on the hanger truss beam and the upper end of the bundle material is maximized when the distance is maximum.