Mobile roof structure

Abstract

To provide a movable roof structure allowing preferable movement of a roof beam without procuring a lot of winches of high specification, by canceling problems of conventional technology.SOLUTION: The movable roof structure of a facility has multiple roof beams arranged roughly in parallel and expansion devices fitted to the roof beams. The roof beams are constituted by including rear roof beams, front roof beams and intermediate roof beams. The intermediate roof beam is arranged between the rear roof beam and the roof beam. A multi-joint mechanism is constituted by including a rear arm mechanism and a front arm mechanism and an intermediate arm mechanism arranged between the rear and front arm mechanisms. By pulling in a control line rearward, the front roof beam and the intermediate roof beam move forward.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to the roof structure of a facility such as a stadium, and more specifically to a movable roof structure in which roof girders are moved by an expansion device including a multi-joint link mechanism. [Background technology]

[0002] Stadiums, event venues, and other facilities that can accommodate large numbers of spectators often have roofs installed so that events can be held even in rainy weather.In addition, an increasing number of facilities are adopting retractable roofs so that events can be held in a natural environment in good weather.

[0003] On the other hand, for facilities with a relatively large area, such as a soccer stadium, the roof will naturally be large in scale, and accordingly, many high-spec traction devices (winches, etc.) will be required to open and close the roof. As a result, the huge budget becomes a problem, and in many cases, the adoption of a retractable roof has been postponed.

[0004] Therefore, there has been a demand for technology that allows for the installation of a retractable roof without preparing a huge budget, that is, without procuring a large number of high-spec winches, etc. Patent Document 1 proposes an invention that makes it possible to open and close a membrane roof without the need for large-scale winches, etc., by utilizing a multi-joint link mechanism such as the so-called Magic Hand (registered trademark). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-84689 Summary of the Invention [Problem to be solved by the invention]

[0006] The invention disclosed in Patent Document 1 is a roof structure that opens and closes a roof consisting of a V-shaped frame, a structural frame, and a membrane roof, and is a technology that realizes opening and closing the roof by linking the V-shaped frame and the structural frame. Therefore, if multiple girders (hereinafter referred to as "roof girders") are not linked together, that is, if they are placed separately, the invention of Patent Document 1 cannot move these roof girders.

[0007] The object of the present invention is to solve the problems associated with conventional technology, that is, to provide technology that can move roof girders in an optimal manner without procuring a large number of high-spec winches. [Means for solving the problem]

[0008] The present invention was developed with a focus on the fact that each roof girder can be moved by attaching an extension device including a multi-joint link mechanism to each roof girder, and is an invention based on an unprecedented idea.

[0009] The movable roof structure of the present invention is a roof structure for a facility, and includes multiple "roof girders (girders constituting the roof)" arranged approximately parallel (including parallel) and "telescopic devices" attached to the roof girders. The roof girders include a rear roof girder, a front roof girder, and an intermediate roof girder, and the intermediate roof girder is arranged between the rear roof girders and the intermediate roof girders. The front roof girders and the intermediate roof girders are movable in a direction perpendicular to the girder axis, which is approximately perpendicular (including vertical) to the girder axis direction (the main axis of the girder) of the roof girders and approximately horizontal (including horizontal). The telescopic device includes a multi-joint link mechanism and control lines, and the multi-joint link mechanism includes a rear arm mechanism, a front arm mechanism, and an intermediate arm mechanism arranged between the rear arm mechanism and the front arm mechanism. The rear arm mechanism is a mechanism in which two rear arms arranged in a V-shape are pinned together by a rear fixed pin, and similarly, the forearm mechanism is a mechanism in which two forearms arranged in a V-shape are pinned together by a front fixed pin. The intermediate arm mechanism is a mechanism in which two intermediate arms arranged in an X-shape are pinned together by an intermediate fixed pin. The multi-link mechanism is a mechanism in which adjacent rear arms and intermediate arms are pinned together by a rear movable pin, and adjacent front arms and intermediate arms are pinned together by a front movable pin. The multi-link mechanism is fixed to the rear roof girder at the rear fixed pin, the front roof girder at the front fixed pin, and the intermediate roof girder at the intermediate fixed pin. One end of the control line is fixed to the front roof girder, and it is hooked on the forward fixed pin, looped around two forward movable pins aligned in the girder axis direction, hooked on the intermediate fixed pin, looped around two rear movable pins aligned in the girder axis direction, and then hooked on the rear fixed pin. When the control line is pulled in the reverse direction (from the front roof girder to the rear roof girder), the front roof girder and the intermediate roof girder move forward (from the rear roof girder to the front roof girder).

[0010] The movable roof structure of the present invention can also include two or more intermediate roof girders. In this case, the multi-joint link mechanism includes two or more intermediate arm mechanisms, and adjacent intermediate arms are pin-connected by intermediate movable pins. The control line is passed around two front movable pins aligned in the axial direction of the girder and hooked onto the intermediate fixed pin, then passed around two intermediate movable pins aligned in the axial direction of the girder, hooked onto the intermediate fixed pin located rearward of the intermediate movable pins, and finally passed around two rear movable pins aligned in the axial direction of the girder.

[0011] The movable roof structure of the present invention can also include a first intermediate roof girder and a second intermediate roof girder having a guide groove formed in the girder axis direction. The first intermediate roof girder is disposed between the rear roof girder and the roof girder, and the second intermediate roof girder is disposed between the adjacent rear roof girder and the first intermediate roof girder, and between the adjacent front roof girder and the first intermediate roof girder, respectively, and is movable in a direction perpendicular to the girder axis. In this case, the rear movable pin and the front movable pin are attached to the second intermediate roof girder so as to be slidable within the guide grooves. When the control line is retracted in the reverse direction, the two rear movable pins and the front movable pin, which are aligned in the girder axis direction, slide within the guide grooves so as to approach each other, and the front roof girder, the first intermediate roof girder, and the second intermediate roof girder move forward.

[0012] The movable roof structure of the present invention can also include a second intermediate roof girder and two or more first intermediate roof girders. In this case, the second intermediate roof girder is also disposed between two adjacent first intermediate roof girders, and the multi-joint link mechanism includes two or more intermediate arm mechanisms, with adjacent intermediate arms pinned together by an intermediate movable pin. The intermediate movable pin is attached to the second intermediate roof girder so as to be slidable within the guide groove. The control line is passed around two front movable pins aligned in the girder axial direction and hooked onto the intermediate fixed pin, then passed around two intermediate movable pins aligned in the girder axial direction, hooked onto an intermediate fixed pin located rearward of the intermediate movable pins, and finally passed around two rear movable pins aligned in the girder axial direction. Furthermore, when the control line is retracted in the rearward direction, the two intermediate movable pins aligned in the girder axial direction slide within the guide groove so as to approach each other.

[0013] The movable roof structure of the present invention may also include a first intermediate roof girder and a second intermediate roof girder, and a multi-joint link mechanism disposed below the roof girders in a substantially vertical (including vertical) plane. In this case, the rear arm mechanism has a V-shape formed by a rear arm pinned to the rear roof girder by a rear fixed pin and an intermediate arm pinned to the first intermediate roof girder by an intermediate fixed pin, and the rear arm and intermediate arm are pinned together by a rear movable pin. Similarly, the front arm mechanism has a V-shape formed by a front arm pinned to the front roof girder by a front fixed pin and an intermediate arm pinned to the first intermediate roof girder by an intermediate fixed pin, and the front arm and intermediate arm are pinned together by a front movable pin. In addition, the second intermediate roof girder is provided with a middle fixed pulley that can rotate substantially vertically (including vertically). One end of the control line is fixed to the front roof girder, and it is hooked around the front fixed pin, looped around the front movable pin, looped around the intermediate fixed pulley, looped around the front movable pin again, looped around the intermediate fixed pin, looped around the rear movable pin, looped around the intermediate fixed pulley located in the rearward direction of the intermediate fixed pin, looped around the rear movable pin again, and then hooked around the rear fixed pin. When the control line is pulled in the rearward direction, the front roof girder, the first intermediate roof girder, and the second intermediate roof girder move forward.

[0014] The movable roof structure of the present invention may also include a second intermediate roof girder and two or more first intermediate roof girders, and a multi-joint link mechanism disposed below the roof girders in a substantially vertical (including vertical) plane. In this case, the multi-joint link mechanism includes one or more intermediate arm mechanisms disposed below the roof girders in a substantially vertical (including vertical) plane. This intermediate arm mechanism has two intermediate arms pinned to two adjacent first intermediate roof girders by intermediate fixed pins, forming a V-shape, and the intermediate arms are pinned together by an intermediate movable pin. The control line is looped around the intermediate fixed pulley, looped again around the front movable pin, looped again around the intermediate fixed pin, looped around the intermediate movable pin, looped around an intermediate fixed pulley located rearward of the intermediate fixed pin, looped again around the intermediate movable pin, looped around an intermediate fixed pin located rearward of the intermediate movable pin, and looped around the rear movable pin.

[0015] The movable roof structure of the present invention may include a first intermediate roof girder and a second intermediate roof girder, a multi-joint link mechanism disposed below the roof girders in a substantially vertical (including vertical) plane, and each arm equipped with a pulley that can rotate substantially vertically (including vertical). In this case, a rear arm pulley is provided on the rear arm, a front arm pulley on the front arm, and a middle arm pulley on the middle arm. In this case, one end of the control line is fixed to the front roof girder, hooked on the front fixed pin, looped around the front arm pulley, looped around the middle fixed pulley, looped around the middle arm pulley of the middle arm (which constitutes the front arm mechanism), looped around the middle fixed pin, looped around the middle arm pulley of the middle arm (which constitutes the rear arm mechanism), looped around the middle fixed pulley located in the rearward direction of the middle fixed pin, looped around the rear arm pulley, and hooked on the rear fixed pin. When the control line is pulled in the reverse direction, the forward roof girder, the first intermediate roof girder, and the second intermediate roof girder move forward.

[0016] The movable roof structure of the present invention includes a second intermediate roof girder and two or more first intermediate roof girders, and a multi-joint link mechanism is arranged below the roof girders in a substantially vertical (including vertical) plane, and each arm can be equipped with a pulley that can rotate substantially vertically (including vertically). In this case, the multi-joint link mechanism is configured to include one or more intermediate arm mechanisms arranged below the roof girders in a substantially vertical (including vertical) plane. This intermediate arm mechanism has two intermediate arms that are pin-connected to two adjacent first intermediate roof girders with intermediate fixed pins, forming a V-shape, and the intermediate arms are pin-connected to each other with intermediate movable pins. The control line is passed around the intermediate arm pulley of the intermediate arm (which constitutes the front arm mechanism), passed around the intermediate fixed pin, passed around the intermediate arm pulley of the intermediate arm (which is on the forward direction side of the intermediate arm mechanism), passed around the intermediate fixed pulley, passed around the intermediate arm pulley of the intermediate arm (which is on the reverse direction side of the intermediate arm mechanism), passed around the intermediate fixed pin which is rearward of the intermediate movable pin, and passed around the intermediate arm pulley of the intermediate arm (which constitutes the rear arm mechanism).

[0017] The movable roof structure of the present invention may include a first intermediate roof girder and a second intermediate roof girder, a multi-joint link mechanism disposed below the roof girders in a substantially vertical (including vertical) plane, and the rear arm mechanism and the front arm mechanism may each have a base material. In this case, the rear arm mechanism includes a rear arm, an intermediate arm, and a base material, with one end of the rear arm pin-connected to the rear roof girder and one end of the intermediate arm pin-connected to the first intermediate roof girder, and the other end of the rear arm and the other end of the intermediate arm each pin-connected to the base material. Similarly, the front arm mechanism includes a front arm, an intermediate arm, and a base material, with one end of the forearm pin-connected to the front roof girder and one end of the intermediate arm pin-connected to the first intermediate roof girder, and the other end of the forearm and the other end of the intermediate arm each pin-connected to the base material. The first intermediate roof girder is provided with a first intermediate fixed pulley that can rotate approximately vertically (including vertically), the second intermediate roof girder is provided with a second intermediate fixed pulley that can rotate approximately vertically (including vertically), and a rear moving pulley and a front moving pulley (positioned in the rearward direction relative to the rear moving pulley) are mounted on the base material. One end of the control line is fixed to the front roof girder, and is looped around the front moving pulley of the front arm mechanism, looped around the second intermediate fixed pulley, looped around the rear moving pulley of the front arm mechanism, looped around the first intermediate fixed pulley, looped around the front moving pulley of the rear arm mechanism, looped around the second intermediate fixed pulley located closer to the rear roof girder than the first intermediate fixed pulley, and looped around the rear moving pulley of the rear arm mechanism. When the control line is pulled in the rearward direction, the front roof girder, the first intermediate roof girder, and the second intermediate roof girder move forward.

[0018] The movable roof structure of the present invention may include a second intermediate roof girder and two or more first intermediate roof girders, a multi-joint link mechanism disposed below the roof girders in a substantially vertical (including vertical) plane, and the rear arm mechanism and the front arm mechanism may each have a base material. In this case, the multi-joint link mechanism is configured to include one or more intermediate arm mechanisms disposed below the roof girders in a substantially vertical (including vertical) plane. This intermediate arm mechanism includes two intermediate arms and a base material, one end of which is pin-connected to an adjacent first intermediate roof girder and the other end is pin-connected to the base material, and the other intermediate arm has one end of which is pin-connected to the adjacent other first intermediate roof girder and the other end is pin-connected to the base material. The control line is looped around the rear movable pulley of the front arm mechanism, then looped around the first intermediate fixed pulley, then looped around the front movable pulley of the intermediate arm mechanism, then looped around the second intermediate fixed pulley located in the rearward direction from the first intermediate fixed pulley, then looped around the rear movable pulley of the intermediate arm mechanism, then looped around the first intermediate fixed pulley located in the rearward direction from the second intermediate fixed pulley, and finally looped around the front movable pulley of the rear arm mechanism.

[0019] The mobile roof structure of the present invention may further include a membrane roof attached to the roof girders, which is extended when the roof girders are open and folded when the roof girders are closed.

[0020] The movable roof structure of the present invention can further include a locking mechanism that connects adjacent roof girders in the direction perpendicular to the girder axis. When two adjacent roof girders in the direction perpendicular to the axis approach each other, the locking mechanism connects the roof girders together, thereby restricting the movement of the roof girders.

[0021] The movable roof structure of the present invention may further comprise braces installed between adjacent roof girders in the direction perpendicular to the girder axis. In this case, multiple rows of expansion devices are attached to the roof girders aligned in the direction of the girder axis. One end of each brace is fixed to the roof girder in the backward direction, and the other end is fixed to the roof girder in the forward direction. The braces are also arranged diagonally across the area formed by adjacent roof girders in the direction perpendicular to the girder axis and adjacent expansion devices in the direction of the girder axis. [Effects of the Invention]

[0022] The movable roof structure of the present invention has the following advantages: (1) It is possible to move roof girders that are arranged separately without preparing a large number of high-spec winches. (2) As a result, it is possible to install a retractable roof structure on the target facility at a lower cost than with conventional technology. (3) By using a locking mechanism, a specific roof beam can be selected and moved, allowing the roof to be opened and closed in a more stable state. [Brief explanation of the drawings]

[0023] [Figure 1] (a) is a plan view from above showing a soccer stadium equipped with the movable roof structure of the present invention, and (b) is a plan view from above showing a soccer stadium without the movable roof structure. [Figure 2] (a) is a plan view from above that shows a schematic diagram of a movable roof structure in which an extension device is arranged perpendicular to the girder axis, and (b) is a plan view from above that shows a schematic diagram of a movable roof structure in which an extension device is arranged diagonally relative to the direction perpendicular to the girder axis. [Figure 3] 1A is a plan view of the first movable roof structure as seen from above, and FIG. 1B is a side view of the second movable roof structure as seen from the side. [Figure 4] (a) is a plan view of a portion of the first movable roof structure seen from above, and (b) is a cross-sectional view of a portion of the first movable roof structure cut along a vertical plane. [Figure 5] FIG. 2A is a plan view schematically showing the rear arm mechanism, FIG. 2B is a plan view schematically showing the intermediate arm mechanism, and FIG. 2C is a plan view schematically showing the front arm mechanism. [Figure 6] FIG. 10 is a plan view from above schematically showing the operating status of the first movable roof structure. [Figure 7] (a) is a plan view of part of the first multi-girder movable roof structure seen from above, and (b) is a plan view of the second intermediate roof girder with the intermediate movable pin attached seen from above. [Figure 8] FIG. 10 is a plan view from above showing a schematic diagram of the operation of the first multi-girder movable roof structure. [Figure 9] FIG. 10 is a side view schematically showing the second movable roof structure. [Figure 10] FIG. 10 is a side view schematically showing the operating state of the second movable roof structure. [Figure 11] FIG. 10 is a side view showing a second mobile roof structure in which each arm is provided with a pulley. [Figure 12] FIG. 10 is a side view schematically showing the operating status of the base material type second movable roof structure. DETAILED DESCRIPTION OF THE INVENTION

[0024] An example of an embodiment of the movable roof structure of the present invention will be described with reference to the drawings. The movable roof structure of the present invention can be used as the roof of any facility, such as a stadium, concert venue, or event venue, but for convenience, the example here will be a stadium (particularly a soccer stadium).

[0025] 1.Overview Fig. 1(a) is a plan view showing a soccer stadium SC equipped with a movable roof structure 100 according to the present invention. For reference, Fig. 1(b) shows the soccer stadium SC without the movable roof structure 100. As shown in Fig. 1(a), the movable roof structure 100 according to the present invention includes multiple roof girders 200 (girders that make up the roof), and these roof girders 200 are movable by telescopic devices, which will be described later. Furthermore, by attaching, for example, a membrane roof 400 to the roof girders 200, it is possible to construct an openable and closable roof in response to the movement of the roof girders 200.

[0026] The roof girder 200 is a so-called shaft member whose axial dimension (length) is greater than its cross-sectional dimension. It spans from one end of the soccer stadium SC to the other and can have various shapes, such as a straight line, arch, or square shape, when viewed from the side. For convenience, the axial direction of the roof girder 200 arranged on the soccer stadium SC (as shown in Figure 1(a)) (the up-down direction in the figure) is referred to as the "girder axis direction," and the direction perpendicular to this girder axis (the left-right direction in the figure) is referred to as the "direction perpendicular to the girder axis." However, these girder axis direction and the direction perpendicular to the girder axis are directions set on a horizontal plane (including the horizontal plane). Furthermore, although the roof girder 200 moves in the direction perpendicular to the girder axis, the closing direction (to the right in the figure) is referred to as the "forward direction," and the opening direction (to the left in the figure) is referred to as the "backward direction." In Figure 1(a), the movable roof structure 100 is divided into two parts, left and right, and each part moves perpendicular to the girder axis, but this is not limited to this, and the movable roof structure 100 can also be placed on only one side (for example, the left side).

[0027] FIG. 2 is a plan view schematically showing a movable roof structure 100, where (a) shows an example in which an extension device 300 is arranged perpendicular to the girder axis, and (b) shows an example in which an extension device 300 is arranged diagonally relative to the direction perpendicular to the girder axis. As shown in this figure, the movable roof structure 100 is composed of roof girders 200 and extension devices 300, and multiple extension devices 300 can be arranged perpendicular to the girder axis, or multiple extension devices 300 can be arranged at an angle relative to the direction perpendicular to the girder axis. Furthermore, only one extension device 300 can be arranged perpendicular to the girder axis (or diagonally relative to the direction perpendicular to the girder axis). Also, as shown in FIG. 2(a), brace members 500 can be placed between adjacent roof girders 200. For example, it is advisable to arrange brace material 500 using wire rope or structural steel (such as angle iron or channel steel) so that it forms the diagonal of the area (in this case, a rectangle) formed by two roof girders 200 adjacent in the direction perpendicular to the girder axis and two expansion devices 300 adjacent in the direction of the girder axis.

[0028] As shown in Figure 2, roof girder 200 is composed of rear roof girder 210, which is located furthest in the rearward direction, front roof girder 220, which is located furthest in the forward direction, and intermediate roof girder 230, which is located between rear roof girder 210 and front roof girder 220, and these rear roof girder 210, front roof girder 220, and intermediate roof girder 230 are arranged approximately parallel (including parallel) to the girder axis direction. Furthermore, rear roof girder 210 is fixed to a part of soccer stadium SC and does not move, but front roof girder 220 and intermediate roof girder 230 can move in the direction perpendicular to the girder axis by extension device 300. Note that although five intermediate roof girders 230 are arranged in this figure, any number of intermediate roof girders 230 (including one) can be arranged depending on the size and shape of the facility.

[0029] The movable roof structure 100 can be broadly divided into the type shown in the plan view of Figure 3(a) and the type shown in the side view of Figure 3(b). The movable roof structure 100 shown in Figure 3(a) is characterized in that the telescopic device 300 is equipped with an intermediate arm mechanism, as will be described later, and for convenience, will be referred to as the "first movable roof structure 100H." On the other hand, the movable roof structure 100 shown in Figure 3(b) is characterized in that the telescopic device 300 is disposed below the roof girder 200, as will be described later, and for convenience, will be referred to as the "second movable roof structure 100V." Below, the first movable roof structure 100H will be described in detail, followed by a detailed description of the second movable roof structure 100V.

[0030] 2. First movable roof structure FIG. 4 is a schematic diagram of a portion of a first movable roof structure 100H, where (a) is a plan view from above and (b) is a vertical cross-sectional view. As shown in FIG. 4(a), the first movable roof structure 100H includes a roof girder 200 consisting of a rear roof girder 210, a front roof girder 220, and an intermediate roof girder 230, and an extension device 300 (hereinafter, specifically referred to as the "first extension device 300H") consisting of a mechanism formed by multiple arms and nodes (hereinafter, referred to as the "multi-joint link mechanism") and a control line 340. The multi-joint link mechanism of the first extension device 300H is a mechanism comprising a rear arm mechanism 310, a front arm mechanism 320, and an intermediate arm mechanism 330. The multi-joint link mechanism of the first extension device 300H will be described below with reference to FIG. 5.

[0031] 5A and 5B are plan views schematically showing the components of the multi-joint link mechanism of the first extension device 300H, with (a) being a plan view of the rear arm mechanism 310 seen from above, (b) being a plan view of the intermediate arm mechanism 330 seen from above, and (c) being a plan view of the front arm mechanism 320 seen from above. As shown in FIG. 5A, the rear arm mechanism 310 has two rear arms 312 arranged in a V-shape and connected by a rear fixing pin 311 at a position where the rear arms 312 overlap (on the left side in the figure). Insertion holes for inserting pins are provided at both ends of the rear arm 312 (only the right end is shown in the figure). By overlapping the insertion holes of the two rear arms 312 (the insertion holes on the left end in the figure) and inserting the rear fixing pin 311, the two rear arms 312 are rotatably connected.

[0032] 5(b), the intermediate arm mechanism 330 is a mechanism in which two intermediate arms 332 are arranged in an X-shape and then pin-coupled at the overlapping position (approximately the center in the figure) by an intermediate fixing pin 331. Insertion holes (only the left and right ends are shown in the figure) for inserting pins are provided at both ends and the center of the intermediate arm 332, and by overlapping the insertion holes provided in the center of the two intermediate arms 332 and then inserting the intermediate fixing pin 331, the two intermediate arms 332 are coupled so as to be freely rotatable.

[0033] 5(c), the forearm mechanism 320, like the rear arm mechanism 310, is a mechanism in which two forearms 322 are arranged in a V shape and then pin-coupled by a front fixing pin 321 at the position where the forearms 322 overlap (on the right side in the figure). Insertion holes (only the left end is shown in the figure) for inserting a pin are provided at both ends of the forearm 322, and the insertion holes (the right end insertion hole in the figure) of the two forearms 322 are overlapped and then the front fixing pin 321 is inserted, thereby coupling the two forearms 322 so that they can rotate freely.

[0034] The rear arm mechanism 310 is positioned furthest in the rearward direction, the front arm mechanism 320 is positioned furthest in the forward direction, and the intermediate arm mechanism 330 is positioned between the rear arm mechanism 310 and the front arm mechanism 320. As shown in Figure 4(a), the rear arm 312 and the intermediate arm 332, which are adjacent in the direction perpendicular to the girder axis, are pin-connected by a rear movable pin 313, and the front arm 322 and the intermediate arm 332, which are adjacent in the direction perpendicular to the girder axis, are pin-connected by a front movable pin 323. More specifically, the rear movable pin 313 is inserted through an insertion hole provided on the forward direction side (right end in the figure) of the rear arm 312 and an insertion hole provided on the backward direction side (left end in the figure) of the intermediate arm 332, and the front movable pin 323 is inserted through an insertion hole provided on the backward direction side (left end in the figure) of the front arm 322 and an insertion hole provided on the forward direction side (right end in the figure) of the intermediate arm 332, thereby forming the multi-joint link mechanism of the first telescopic device 300H. Note that the multi-joint link mechanism of the first telescopic device 300H can be configured such that one intermediate arm mechanism 330 is disposed between the rear arm mechanism 310 and the front arm mechanism 320, or such that two or more intermediate arm mechanisms 330 (i.e., two or more intermediate roof girders 230) are disposed. When two or more intermediate arm mechanisms 330 are provided, intermediate arms 332 adjacent to each other in the direction perpendicular to the girder axis are pin-connected by an intermediate movable pin 333.

[0035] The multi-joint link mechanism of the first extension device 300H is fixed to the rear roof girder 210 at the rear fixing pin 311, to the front roof girder 220 at the front fixing pin 321, and to the middle roof girder 230 at the middle fixing pin 331, thereby being attached to each roof girder 200. This multi-joint link mechanism can be attached to either the upper or lower side of the roof girder 200, or it can be attached to both the upper side (upper flange) and the lower side (lower flange) as shown in Figure 4(b), and it can also be attached to a membrane roof 400 so that it spans between adjacent roof girders 200 in the direction perpendicular to the girder axis.

[0036] The control line 340 of the first extension device 300H can be a cord-like member such as a wire rope, and as shown in FIG. 4(a), it is fixed at a fixed point FX on the front roof girder 220 and is installed so as to move backward while being hung on each joint of the multi-joint link mechanism. More specifically, one end of the control line 340 on the forward direction side is fixed to the front roof girder 220 at the fixed point FX, and then hung on the front fixed pin 321, wrapped around two front movable pins 323 lined up in the girder axial direction, hung on the middle fixed pin 331, wrapped around two rear movable pins 313 lined up in the girder axial direction, hung on the rear fixed pin 311, and then further extended in the backward direction. Note that when two or more intermediate arm mechanisms 330 are provided, the control line 340 is hung around the two front movable pins 323 and hung on the middle fixed pin 331, then wrapped around two middle movable pins 333 lined up in the girder axial direction, and hung on the middle fixed pin 331. Then, when it is repeatedly hooked onto all the intermediate movable pins 333 and intermediate fixed pins 331 (but only those between the intermediate movable pins 333), it is hooked onto the intermediate fixed pin 331 on the most rearward direction side and is then hooked around the two rear movable pins 313.

[0037] When the control wire 340 is looped around the two front movable pins 323, rear movable pin 313, and middle movable pin 333 (hereinafter collectively referred to as "movable pins") that are aligned in the girder axis direction, it is looped around one movable pin and then around the other movable pin, and the looping directions are reversed. For example, in the case of Figure 4(a), the control wire 340 is looped around the movable pin shown at the bottom about half a turn in a clockwise direction, and then around the movable pin shown at the top about half a turn in a counterclockwise direction.

[0038] As described above, the control line 340 is hung on the rear fixed pin 311, the front fixed pin 321, the middle fixed pin 331 (hereinafter collectively referred to as "fixed pins"), the rear movable pin 313, the front movable pin 323, and the middle movable pin 333 (hereinafter collectively referred to as "connecting pins"). Therefore, it is preferable that these connecting pins have a structure including a pin portion that is inserted into the insertion hole of each arm and a pulley that can rotate around an axis (a vertical axis in the case of FIG. 4(a)). As will be described later, the control line 340 is pulled in the backward direction, and if the control line 340 is hung on a pulley provided at each joint (connecting pin) at that time, the control line 340 will be pulled in smoothly (without resistance).

[0039] 6 is a plan view from above that schematically illustrates the operating state of the first movable roof structure 100H. In the first movable roof structure 100H shown at the top of this figure (above the white arrows), each roof girder 200 (rear roof girder 210, front roof girder 220, and middle roof girder 230) is leaning backward, and the roof girders 200 are close to each other, i.e., the roof is in an open (opened) state. When the control line 340 is retracted in the backward direction from this state, the two movable pins (front movable pin 323, rear movable pin 313, and middle movable pin 333) arranged side by side move in the girder axial direction so as to approach each other, and the front fixed pin 321 and middle fixed pin 331 of the fixed pins move forward, which in turn moves the front roof girder 220 and middle roof girder 230 forward. As a result, the first movable roof structure 100H shown in the lower part of FIG. 6 (below the white arrow) is in a state where the roof is closed (doors are closed).

[0040] In addition, by installing a retracting wire rope (hereinafter referred to as the "sub-control line"), the first movable roof structure 100H can be returned from the closed state (the state shown at the bottom in Figure 6) to the open state (the state shown at the top in Figure 6). Specifically, one end of the sub-control line facing forward is fixed to a part of the front roof girder 220 and is installed so as to extend in the reverse direction. As a result, when the sub-control line is retracted in the reverse direction from the closed state, the two parallel movable pins move in the axial direction of the girder so as to move away from each other, and the front fixed pin 321 and the middle fixed pin 331 move in the reverse direction. As a result, the front roof girder 220 and the middle roof girder 230 move in the reverse direction, and the first movable roof structure 100H is placed in the open state. Note that various conventional traction devices, such as winches, can be used to retract the control line 340 and the sub-control line in the reverse direction.

[0041] Incidentally, when the first movable roof structure 100H is in the open state (the state shown at the top of Figure 6), the front roof girder 220 and the middle roof girder 230 may move unintentionally. Therefore, it is advisable to provide a locking mechanism between adjacent roof girders 200 in the direction perpendicular to the girder axis. This locking mechanism is a device that restricts the movement of the roof girders 200 by connecting adjacent roof girders 200, and various conventional technologies can be used. Furthermore, the locking mechanism can be provided at one adjacent location (for example, between the front roof girder 220 and the middle roof girder 230), at two or more adjacent locations, or at all adjacent locations. When locking mechanisms are provided between all adjacent roof girders 200 in the direction perpendicular to the girder axis, only one roof girder 200 can be moved by releasing only one locking mechanism. For example, if the locking mechanism between the front roof girder 220 and the middle roof girder 230 is released and the control line 340 is retracted, only the front roof girder 220 will move forward; if the locking mechanism between two adjacent middle roof girder 230 is then released and the control line 340 is retracted, only the middle roof girder 230 in the forward direction will move; by repeating this process, the roof girder 200 can be moved one by one stably.

[0042] In the first movable roof structure 100H, the intermediate roof girder 230 may also be configured by a first intermediate roof girder and a second intermediate roof girder. Figure 7 is a schematic diagram showing a portion of the first movable roof structure 100H (hereinafter referred to as the "multi-girder first movable roof structure 100H") having a first intermediate roof girder 231 and a second intermediate roof girder 232, where (a) is a plan view seen from above and (b) is a plan view seen from above of the second intermediate roof girder 232 to which an intermediate movable pin 333 is attached. The first intermediate roof girder 231 is disposed between the rear roof girder 210 and the front roof girder 220, while the second intermediate roof girder 232 is disposed between the rear roof girder 210 and the first intermediate roof girder 231 and between the front roof girder 220 and the first intermediate roof girder 231. Also, when multiple (two in the figure) first intermediate roof girders 231 are arranged as shown in Figure 7(a), second intermediate roof girders 232 are also arranged between the first intermediate roof girders 231.

[0043] The multi-joint link mechanism of the multi-girder first movable roof structure 100H is attached to the roof girder 200 by being fixed to the rear roof girder 210 at the rear fixed pin 311, to the front roof girder 220 at the front fixed pin 321, and to the first intermediate roof girder 231 at the middle fixed pin 331. As shown in FIG. 7(b), it is attached to the second intermediate roof girder 232 so that the two movable pins arranged side by side (the front movable pin 323, the rear movable pin 313, and the middle movable pin 333) are slidable in the girder axial direction. More specifically, the second intermediate roof girder 232 is formed with a guide groove GS extending in the girder axial direction, and a portion of the movable pin is inserted into this guide groove GS, thereby allowing the movable pin to slide in the girder axial direction.

[0044] FIG. 8 is a plan view from above that schematically illustrates the operating state of the multi-girder first movable roof structure 100H. In the multi-girder first movable roof structure 100H shown in the upper part of this figure, each roof girder 200 (rear roof girder 210, front roof girder 220, and middle roof girder 230) is positioned in the rearward direction, and the roof girders 200 are close to each other, i.e., in the open state. When the control line 340 is retracted in the rearward direction from this state, the two juxtaposed movable pins (front movable pin 323, rear movable pin 313, and middle movable pin 333) slide within the guide groove GS to move closer to each other, and the front fixed pin 321 and middle fixed pin 331 move forward, which in turn moves the front roof girder 220 and middle roof girder 230 (first middle roof girder and second middle roof girder) forward. As a result, the multi-girder first movable roof structure 100H shown in the lower part of FIG. 8 is placed in the closed state.

[0045] 3. Second movable roof structure FIG. 9 is a side view of the second movable roof structure 100V. As shown in this figure, the second movable roof structure 100V includes a roof girder 200 consisting of a rear roof girder 210, a front roof girder 220, a first intermediate roof girder 231, and a second intermediate roof girder 232, and an extension device 300 (hereinafter referred to as the "second extension device 300V") consisting of a multi-joint link mechanism and a control line 340. The multi-joint link mechanism of the second extension device 300V is disposed below the roof girder 200 in a substantially vertical (including vertical) plane and includes a rear arm mechanism 310 and a front arm mechanism 320. If multiple first intermediate roof girders 231 are disposed, the mechanism may also include an intermediate arm mechanism 330. As with the first movable roof structure 100H, a membrane roof 400 may be attached so as to span adjacent roof girders 200 in the direction perpendicular to the girder axis.

[0046] 9, the rear roof girder 210 is positioned furthest in the rearward direction, the front roof girder 220 is positioned furthest in the forward direction, and the first intermediate roof girder 231 is positioned between the rear roof girder 210 and the front roof girder 220. The second intermediate roof girder 232 is positioned between the rear roof girder 210 and the first intermediate roof girder 231, and between the front roof girder 220 and the first intermediate roof girder 231, and when multiple first intermediate roof girders 231 are positioned, it is also positioned between the first intermediate roof girders 231. The second intermediate roof girder 232 is provided with a pulley (hereinafter referred to as "intermediate fixed pulley 334") that can rotate approximately vertically (including vertically).

[0047] The rear arm mechanism 310 includes a rear arm 312 and an intermediate arm 332 that are arranged below the roof girder 200 in a substantially vertical (including vertical) plane, with the rear arm 312 being pin-connected to the rear roof girder 210 by a rear fixed pin 311, and the other intermediate arm 332 being pin-connected to the first intermediate roof girder 231 by an intermediate fixed pin 331. The rear arm 312 and the intermediate arm 332 are arranged so as to form a V-shape, and are pin-connected by a rear movable pin 313 at a position where the rear arm 312 and the intermediate arm 332 overlap (the lower side in the figure). A through-hole for inserting a pin is provided at the lower end of the rear arm 312, and similarly, a through-hole for inserting a pin is provided at the lower end of the intermediate arm 332. The rear arm 312 and the intermediate arm 332 are oriented such that the insertion hole in the rear arm 312 overlaps the insertion hole in the intermediate arm 332, and then the rear movable pin 313 is inserted through the pin, thereby rotatably connecting the rear arm 312 and the intermediate arm 332. In addition, above the rear movable pin 313, an intermediate fixed pulley 334 of the second intermediate roof girder 232 is arranged.

[0048] The intermediate arm mechanism 330 includes two intermediate arms 332 arranged in a substantially vertical (including vertical) plane below the roof girder 200, and each intermediate arm 332 is pin-connected to the first intermediate roof girder 231 by an intermediate fixed pin 331. The two intermediate arms 332 are arranged to form a V-shape and are pin-connected by an intermediate movable pin 333 at a position where these intermediate arms 332 overlap (the lower side in the figure). An insertion hole for inserting a pin is provided at the lower end of each intermediate arm 332, and by overlapping the insertion holes of these intermediate arms 332 and inserting the intermediate movable pin 333, the intermediate arms 332 are rotatably connected to each other. An intermediate fixed pulley 334 of the second intermediate roof girder 232 is arranged above the intermediate movable pin 333.

[0049] The forearm mechanism 320 includes a forearm 322 and an intermediate arm 332 that are disposed below the roof girder 200 in a substantially vertical (including vertical) plane, with the forearm 322 being pin-connected to the front roof girder 220 by a front fixed pin 321, and the other intermediate arm 332 being pin-connected to the first intermediate roof girder 231 by an intermediate fixed pin 331. The forearm 322 and the intermediate arm 332 are arranged in a V-shape and are pin-connected by a front movable pin 323 at a position where the forearm 322 and the intermediate arm 332 overlap (the lower side in the figure). A through-hole for inserting a pin is provided at the lower end of the forearm 322, and similarly, a through-hole for inserting a pin is provided at the lower end of the intermediate arm 332. The through-hole of the forearm 322 and the through-hole of the intermediate arm 332 are aligned with each other and the front movable pin 323 is inserted through the aligned hole, thereby rotatably connecting the forearm 322 and the intermediate arm 332. An intermediate fixed pulley 334 of the second intermediate roof girder 232 is disposed above the front movable pin 323. The multi-joint link mechanism of the second movable roof structure 100V is configured to include a rear arm mechanism 310 and a front arm mechanism 320, and can also include one or more intermediate arm mechanisms 330 when multiple first intermediate roof girders 231 are disposed.

[0050] The control line 340 of the second extension device 300V can be a cord-like member such as a wire rope, and is installed so that it is fixed at a fixed point FX on the front roof girder 220 and then hooked around each joint of the multi-joint link mechanism so as to move in the reverse direction, as shown in Figure 9. More specifically, one end of the control line 340 on the forward direction side is fixed to the front roof girder 220 at the fixed point FX, and then hooked around the front fixed pin 321, looped around the front movable pin 323, looped around the intermediate fixed pulley 334 above it, looped around the front movable pin 323 again, then hooked around the intermediate fixed pin 331, looped around the rear movable pin 313, looped around the intermediate fixed pulley 334 above it, then looped around the rear movable pin 313 again, then hooked around the rear fixed pin 311, and then further extended in the reverse direction. When one or more intermediate arm mechanisms 330 are provided, the arm is hooked around the intermediate fixed pulley 334, hooked again around the front movable pin 323, hooked around the intermediate fixed pin 331, hooked around the intermediate movable pin 333, hooked around the intermediate fixed pulley 334 above it, hooked again around the intermediate movable pin 333, and hooked around the intermediate fixed pin 331. After repeatedly hooking around all the intermediate movable pins 333 and intermediate fixed pins 331 (but only those between the intermediate movable pins 333 and 333), it is hooked around the intermediate fixed pin 331 on the rearmost side in the reverse direction and hooked around the rear movable pin 313.

[0051] When the control wire 340 is looped around the movable pins (front movable pin 323, rear movable pin 313, and middle movable pin 333) lined up above and below and the middle fixed pulley 334, the looping direction is the same for all of them. For example, in the case of the middle movable pin 333 and middle fixed pulley 334 shown in Figure 9, the control wire 340 is looped around the middle movable pin 333 about half a turn in a clockwise direction, then the control wire 340 is looped around the middle fixed pulley 334 about half a turn in a clockwise direction, and then the control wire 340 is looped around the middle movable pin 333 about half a turn in a clockwise direction again. Note that, similar to the first movable roof structure 100H, the connecting pins of the second movable roof structure 100V may also be structured to include a pin portion inserted into the insertion holes of each arm and a pulley that can rotate around an axis (a horizontal axis in Figure 9).

[0052] 10 is a side view showing a schematic diagram of the operating state of the second movable roof structure 100V. In the second movable roof structure 100V shown at the top of this figure (above the white arrow), each roof girder 200 (rear roof girder 210, front roof girder 220, first intermediate roof girder 231, and second intermediate roof girder 232) is positioned in the rearward direction, and the roof girders 200 are close to each other, i.e., in an open door state. When the control line 340 is retracted in the rearward direction from this state, the movable pins (rear movable pin 313, intermediate movable pin 333, and front movable pin 323) rise to approach the intermediate fixed pulley 334 located above them. At the same time, the front fixed pin 321, intermediate fixed pin 331, front movable pin 323, and intermediate movable pin 333 each move forward, which in turn moves the front roof girder 220, first intermediate roof girder 231, and second intermediate roof girder 232 forward. As a result, the second movable roof structure 100V shown in the lower part of FIG. 10 (below the white arrow) is in the closed door state.

[0053] As with the first movable roof structure 100H, by installing a secondary control line, the second movable roof structure 100V can be returned from a closed state (the lower state in Figure 10) to an open state (the upper state in Figure 10). Also, as with the first movable roof structure 100H, a locking mechanism can be provided between adjacent roof girders 200 in the direction perpendicular to the girder axis.

[0054] The second movable roof structure 100V can also be configured such that a pulley that can rotate approximately vertically (including vertically) is attached to each arm (rear arm 312, front arm 322, and intermediate arm 332). Fig. 11 is a side view that schematically shows the second movable roof structure 100V in which each arm is equipped with a pulley. In this case, as shown in Fig. 11, a rear arm pulley 313P is provided on the rear arm 312, a front arm pulley 323P is provided on the front arm 322, and an intermediate arm pulley 333P is provided on the intermediate arm 332.

[0055] In this case, the control line 340 is fixed at a fixed point FX on the front roof girder 220 as shown in Figure 11, and is installed so that it moves in the reverse direction while being hung on each joint of the multi-joint link mechanism and the arm pulleys equipped on each arm. More specifically, one end of the control line 340 on the forward direction side is fixed to the front roof girder 220 at a fixed point FX, then it is hooked onto the front fixed pin 321, passed around the front arm pulley 323P, passed around the intermediate fixed pulley 334 located nearby above it (slightly toward the reverse direction), passed around the intermediate arm pulley 333P of the intermediate arm 332 that constitutes the front arm mechanism 320, then hooked onto the intermediate fixed pin 331, passed around the intermediate arm pulley 333P of the intermediate arm 332 that constitutes the rear arm mechanism 310, passed around the intermediate fixed pulley 334 located nearby above it (slightly toward the reverse direction), passed around the rear arm pulley 313P, then hooked onto the rear fixed pin 311 and further extended in the reverse direction. In addition, when one or more intermediate arm mechanisms 330 are arranged, the pulley 333 is hung around the intermediate arm pulley 333P of the intermediate arm 332 that constitutes the front arm mechanism 320, and after being hung on the intermediate fixed pin 331, it is hung around the intermediate arm pulley 333P of the intermediate arm 332 (but on the forward direction side) that constitutes the intermediate arm mechanism 330, hung around the intermediate fixed pulley 334 located nearby above it (slightly on the reverse direction side), hung around the intermediate arm pulley 333P of the intermediate arm 332 (but on the reverse direction side) that constitutes the intermediate arm mechanism 330, and hung on the intermediate fixed pin 331. Then, when it is repeatedly hooked onto all the intermediate arm pulleys 333P (those that constitute the intermediate arm mechanism 330) and intermediate fixed pins 331 (those between the intermediate movable pins 333 and 333), it is hooked onto the intermediate fixed pin 331 that is furthest backward in the direction of travel and is then hooked onto the intermediate arm pulley 333P of the intermediate arm 332 that constitutes the rear arm mechanism 310.

[0056] Furthermore, the second movable roof structure 100V may be configured such that each arm mechanism (rear arm mechanism 310, front arm mechanism 320, and middle arm mechanism 330) includes a base material. FIG. 12 is a side view, seen from the side, that schematically illustrates the operating state of a second movable roof structure 100V in which each arm mechanism is equipped with a base material (hereinafter referred to as the "base material-type second movable roof structure 100V"). As shown in this figure, in the case of the base material-type second movable roof structure 100V, the first intermediate roof girder 231 is provided with a pulley (hereinafter referred to as the "first intermediate fixed pulley 335") that can rotate in the vertical direction (including the vertical direction), and the second intermediate roof girder 232 is provided with a pulley (hereinafter referred to as the "second intermediate fixed pulley 336") that can rotate in the vertical direction (including the vertical direction). In this case, the fixed pins (rear fixed pin 311, front fixed pin 321, and intermediate fixed pin 331) and the movable pins (rear movable pin 313, front movable pin 323, and intermediate movable pin 333) can be omitted.

[0057] As shown in FIG. 12, the intermediate arm mechanism 330 of the base-type second movable roof structure 100V includes two intermediate arms 332 arranged in a substantially vertical (including vertical) plane below the roof girder 200. Each intermediate arm 332 is pin-connected at its upper end to the first intermediate roof girder 231 and at its lower end to the base material 337. Two pulleys that can rotate vertically (including vertically) are mounted on the upper surface of the base material 337. For convenience, the pulley arranged in the rearward direction will be referred to as the "rear moving pulley 338," and the pulley arranged in the forward direction will be referred to as the "front moving pulley 339." In the base-type second movable roof structure 100V, the intermediate arm 332 can be bent near the center as shown in FIG. 12. Similarly, the rear arm 312 and the front arm 322 can also be bent near the center.

[0058] The rear arm mechanism 310 of the base material type second movable roof structure 100V has a rear arm 312 and an intermediate arm 332 that are arranged below the roof girder 200 in an approximately vertical (including vertical) plane, and the rear arm 312 is pin-connected to the rear roof girder 210 at its upper end and to the base material 337 at its lower end, while one of the intermediate arms 332 is pin-connected to the first intermediate roof girder 231 at its upper end and to the base material 337 at its lower end. Similarly, the forearm mechanism 320 of the base material type second movable roof structure 100V has a forearm 322 and an intermediate arm 332 arranged below the roof girder 200 in a substantially vertical (including vertical) plane, with the forearm 322 pin-connected to the front roof girder 220 at its upper end and pin-connected to the base material 337 at its lower end, and one of the intermediate arms 332 pin-connected to the first intermediate roof girder 231 at its upper end and pin-connected to the base material 337 at its lower end. Note that a second intermediate fixed pulley 336 of the second intermediate roof girder 232 is arranged above the base material 337 of the rear arm mechanism 310, forearm mechanism 320, and intermediate arm mechanism 330. The multi-joint link mechanism of the base material type second movable roof structure 100V is composed of the rear arm mechanism 310 and the forearm mechanism 320, and can further include one or more intermediate arm mechanisms 330 if multiple first intermediate roof girders 231 are arranged.

[0059] The control wire 340 of the base member type second telescopic device 300V is fixed at a fixed point FX on the front roof girder 220 and is installed so as to move in the reverse direction while being hooked to each joint of the multi-joint link mechanism. More specifically, one end of the control wire 340 on the forward direction side is fixed to the front roof girder 220 at the fixed point FX, and then the wire is looped around the first intermediate fixed pulley 335 of the first intermediate roof girder 231, looped around the front moving pulley 339 of the front arm mechanism 320, looped around the second intermediate fixed pulley 336 located above it, looped around the rear moving pulley 338 of the front arm mechanism 320, then looped around the first intermediate fixed pulley 335 on the rear direction side, looped around the front moving pulley 339 of the rear arm mechanism 310, looped around the second intermediate fixed pulley 336 located above it, looped around the rear moving pulley 338 of the rear arm mechanism 310, and then further extended in the reverse direction. When one or more intermediate arm mechanisms 330 are provided, the wire is looped around the rear moving pulley 338 of the front arm mechanism 320, then around the first intermediate fixed pulley 335, then around the front moving pulley 339 of the intermediate arm mechanism 330, then around the second intermediate fixed pulley 336 above it, then around the rear moving pulley 338 of the intermediate arm mechanism 330, and then around the first intermediate fixed pulley 335 on the rearward direction side. After repeatedly looping around all the second intermediate fixed pulleys 336 and first intermediate fixed pulleys 335 (those between the second intermediate fixed pulleys 336 and the second intermediate fixed pulleys 336), it is looped around the first intermediate fixed pulley 335 on the rearward direction side and then around the front moving pulley 339 of the rear arm mechanism 310.

[0060] In the base-type second movable roof structure 100V shown in the upper part of Fig. 12, each roof girder 200 is leaning backward and is close to each other, i.e., in an open door state. When the control line 340 is retracted in the backward direction from this state, the base material 337 rises to approach the second intermediate fixed pulley 336 located above it, and the arms (rear arm 321, front arm 322, intermediate arm 323) constituting each arm mechanism (rear arm mechanism 310, front arm mechanism 320, intermediate arm mechanism 330) spread out, and accordingly the front roof girder 220, first intermediate roof girder 231, and second intermediate roof girder 232 move forward. As a result, the base-type second movable roof structure 100V shown in the lower part of Fig. 12 is in a closed door state. [Industrial Applicability]

[0061] The movable roof structure of the present invention can be used in various stadiums such as baseball stadiums, soccer stadiums, and athletics stadiums, entertainment facilities for concerts and other events, large factories, commercial facilities with arcades, etc. It can be particularly well suited for use on roofs that open wide when the doors are opened. [Explanation of symbols]

[0062] 100 Mobile roof structure of the present invention 100H (among the mobile roof structures) 1st mobile roof structure 100V Second mobile roof structure (among mobile roof structures) 200 (movable roof structure) roof girder 210 (roof girder) rear roof girder 220 (Roof girder) Front roof girder 230 (Roof girder) Intermediate roof girder 231 (Intermediate roof girder) First intermediate roof girder 232 (Intermediate roof girder) Second intermediate roof girder 300 (Mobile roof structure) expansion joint 300H First expansion joint (of the expansion joints) 300V Second expansion joint (of the expansion joints) 310 Rear arm mechanism (of telescopic device) 311 (rear arm mechanism) rear fixing pin 312 Rear arm (of rear arm mechanism) 313 Rear movable pin (of rear arm mechanism) 313P (rear arm mechanism) rear arm pulley 320 (Telescopic) Forearm Mechanism 321 (forward arm mechanism) forward fixing pin 322 (forearm mechanism) forearm 323 (forward arm mechanism) forward movable pin 323P (forearm mechanism) forearm pulley 330 Intermediate arm mechanism (of telescopic device) 331 (Intermediate arm mechanism) intermediate fixing pin 332 (Intermediate arm of intermediate arm mechanism) 333 (Intermediate arm mechanism) intermediate movable pin 333P (Intermediate arm mechanism) Intermediate arm pulley 334 (Intermediate arm mechanism) intermediate fixed pulley 335 (Intermediate arm mechanism) First intermediate fixed pulley 336 (of intermediate arm mechanism) second intermediate fixed pulley 337 (Expansion Joint) Base Material 338 (Telescopic device) rear moving pulley 339 (forward moving pulley of telescopic device) 340 (Expansion Joint) Control Line 400 (Mobile roof structure) membrane roof 500 (movable roof structure) bracing material FX fixed point GS guide groove SC Soccer Stadium

Claims

1. A roof structure for a facility, comprising: A plurality of roof girders arranged in parallel or approximately parallel; An expansion device attached to the roof girder, The roof girders include a rear roof girder, a front roof girder, and an intermediate roof girder; the intermediate roof girder is disposed between the rear roof girder and the front roof girder, The front roof girder and the intermediate roof girder are movable in a direction perpendicular to the girder axis of the roof girder, which is perpendicular or substantially perpendicular to the girder axis direction of the roof girder, and horizontal or substantially horizontal, The telescopic device includes a multi-joint link mechanism and a control line; the multi-joint link mechanism includes a rear arm mechanism, a front arm mechanism, and an intermediate arm mechanism disposed between the rear arm mechanism and the front arm mechanism; the rear arm mechanism is a mechanism in which two rear arms arranged in a V shape are pin-connected by a rear fixing pin, the front arm mechanism is a mechanism in which two front arms arranged in a V shape are pin-connected by a front fixed pin, the intermediate arm mechanism is a mechanism in which two intermediate arms arranged in an X-shape are pin-connected by an intermediate fixing pin, the multi-joint link mechanism is a mechanism in which the adjacent rear arm and the adjacent intermediate arm are pin-connected by a rear movable pin, and the adjacent front arm and the adjacent intermediate arm are pin-connected by a front movable pin, The multi-link mechanism is fixed to the rear roof girder at the position of the rear fixing pin, fixed to the front roof girder at the position of the front fixing pin, and further fixed to the intermediate roof girder at the position of the intermediate fixing pin, One end of the control line is fixed to the front roof girder, and the control line is hung on the front fixed pin, looped around the two front movable pins aligned in the girder axis direction, hung on the intermediate fixed pin, looped around the two rear movable pins aligned in the girder axis direction, and hung on the rear fixed pin, When the control line is pulled in a rearward direction from the front roof girder toward the rear roof girder, the front roof girder and the intermediate roof girder move in a forward direction from the rear roof girder toward the front roof girder. A mobile roof structure characterized by:

2. The roof girder includes two or more intermediate roof girders, the multi-joint link mechanism includes two or more intermediate arm mechanisms, and adjacent intermediate arms are pin-coupled to each other by intermediate movable pins, When the control line is looped around the two front movable pins aligned in the girder axis direction and hooked onto the intermediate fixed pin, the control line is looped around the two intermediate movable pins aligned in the girder axis direction, hooked onto the intermediate fixed pin located in the rearward direction from the intermediate movable pins, and looped around the two rear movable pins aligned in the girder axis direction.

2. The mobile roof structure according to claim 1.

3. A roof structure for a facility, comprising: A plurality of roof girders arranged in parallel or approximately parallel; An expansion device attached to the roof girder, The roof girders include a rear roof girder, a front roof girder, a first intermediate roof girder, and a second intermediate roof girder, the first intermediate roof girder is disposed between the rear roof girder and the front roof girder, The second intermediate roof girder has a guide groove formed in the girder axial direction, and is disposed between the adjacent rear roof girder and the first intermediate roof girder, and between the adjacent front roof girder and the first intermediate roof girder, respectively; The front roof girder, the first intermediate roof girder, and the second intermediate roof girder are movable in a direction perpendicular to the girder axis direction of the roof girder, which is perpendicular or substantially perpendicular to the girder axis direction of the roof girder, and is horizontal or substantially horizontal, The telescopic device includes a multi-joint link mechanism and a control line; the multi-joint link mechanism includes a rear arm mechanism, a front arm mechanism, and an intermediate arm mechanism disposed between the rear arm mechanism and the front arm mechanism; the rear arm mechanism is a mechanism in which two rear arms arranged in a V shape are pin-connected by a rear fixing pin, the front arm mechanism is a mechanism in which two front arms arranged in a V shape are pin-connected by a front fixed pin, the intermediate arm mechanism is a mechanism in which two intermediate arms arranged in an X-shape are pin-connected by an intermediate fixing pin, the multi-joint link mechanism is a mechanism in which the adjacent rear arm and the adjacent intermediate arm are pin-connected by a rear movable pin, and the adjacent front arm and the adjacent intermediate arm are pin-connected by a front movable pin, The multi-link mechanism is fixed to the rear roof girder at the position of the rear fixing pin, fixed to the front roof girder at the position of the front fixing pin, and further fixed to the first intermediate roof girder at the position of the intermediate fixing pin, the rear movable pin and the front movable pin are attached to the second intermediate roof girder so as to be slidable within the guide groove, One end of the control line is fixed to the front roof girder, and the control line is hung on the front fixed pin, looped around the two front movable pins aligned in the girder axis direction, hung on the intermediate fixed pin, looped around the two rear movable pins aligned in the girder axis direction, and hung on the rear fixed pin, When the control line is pulled in the rearward direction from the front roof girder toward the rear roof girder, the two rear movable pins and the front movable pin aligned in the girder axial direction slide and move within the guide grooves so as to approach each other, and the front roof girder, the first intermediate roof girder, and the second intermediate roof girder move in the forward direction from the rear roof girder toward the front roof girder. A mobile roof structure characterized by:

4. The roof girders include two or more of the first intermediate roof girders, The second intermediate roof girder is also disposed between two adjacent first intermediate roof girders, the multi-joint link mechanism includes two or more intermediate arm mechanisms, and adjacent intermediate arms are pin-coupled to each other by intermediate movable pins, The intermediate movable pin is attached to the second intermediate roof girder so as to be slidable within the guide groove, When the control line is passed around the two front movable pins aligned in the girder axis direction and hooked onto the intermediate fixed pin, it is passed around the two intermediate movable pins aligned in the girder axis direction, hooked onto the intermediate fixed pin in the rearward direction from the intermediate movable pins, and passed around the two rear movable pins aligned in the girder axis direction, When the control wire is pulled in the rearward movement direction, the two intermediate movable pins aligned in the girder axis direction slide and move within the guide grooves so as to approach each other.

4. The mobile roof structure according to claim 3.

5. In the structure of the facility's roof, A plurality of roof girders arranged in parallel or approximately parallel; An expansion device attached to the roof girder, The roof girders include a rear roof girder, a front roof girder, a first intermediate roof girder, and a second intermediate roof girder, the first intermediate roof girder is disposed between the rear roof girder and the front roof girder, The second intermediate roof girder is disposed between the adjacent rear roof girder and the first intermediate roof girder, and between the adjacent front roof girder and the first intermediate roof girder, The front roof girder, the first intermediate roof girder, and the second intermediate roof girder are movable in a direction perpendicular to the girder axis of the roof girder, which is perpendicular or substantially perpendicular to the girder axis direction of the roof girder, and is horizontal or substantially horizontal, The telescopic device includes a multi-joint link mechanism and a control line; the multi-joint link mechanism includes a rear arm mechanism and a front arm mechanism that are disposed below the roof girder and in a vertical or substantially vertical plane, the rear arm mechanism is a mechanism in which a V-shape is formed by a rear arm that is pin-connected to the rear roof girder by a rear fixed pin and an intermediate arm that is pin-connected to the first intermediate roof girder by an intermediate fixed pin, and the rear arm and the intermediate arm are pin-connected to each other by a rear movable pin, the forearm mechanism is a mechanism in which a V-shape is formed by a forearm that is pin-connected to the front roof girder by a front fixed pin and the intermediate arm that is pin-connected to the first intermediate roof girder by the intermediate fixed pin, and the forearm and the intermediate arm are pin-connected to each other by a front movable pin, The second intermediate roof girder is provided with an intermediate fixed pulley that can rotate in a vertical or approximately vertical plane, One end of the control line is fixed to the front roof girder, and the control line is hooked around the front fixed pin, looped around the front movable pin, looped around the intermediate fixed pulley and looped around the front movable pin again, looped around the intermediate fixed pin, looped around the rear movable pin, looped around the intermediate fixed pulley located closer to the rear roof girder than the intermediate fixed pin, looped around the rear movable pin again, and hooked around the rear fixed pin, When the control line is pulled in the rearward direction from the front roof girder toward the rear roof girder, the front roof girder, the first intermediate roof girder, and the second intermediate roof girder move in the forward direction from the rear roof girder toward the front roof girder. A mobile roof structure characterized by:

6. The roof girders include two or more of the first intermediate roof girders, The second intermediate roof girder is also disposed between two adjacent first intermediate roof girders, the multi-joint link mechanism includes one or more intermediate arm mechanisms disposed below the roof girder in a vertical or substantially vertical plane; the intermediate arm mechanism is a mechanism in which a V-shape is formed by two intermediate arms that are pin-connected to two adjacent first intermediate roof girders by the intermediate fixed pins, and the intermediate arms are pin-connected to each other by an intermediate movable pin, The control line is looped around the intermediate fixed pulley, then looped around the front movable pin again, then looped around the intermediate fixed pin, then looped around the intermediate movable pin, then looped around the intermediate fixed pulley located in the rearward travel direction from the intermediate fixed pin, then looped around the intermediate movable pin again, then looped around the intermediate fixed pin located in the rearward travel direction from the intermediate movable pin, and then looped around the rear movable pin.

6. The mobile roof structure according to claim 5.

7. In the structure of the facility's roof, A plurality of roof girders arranged in parallel or approximately parallel; An expansion device attached to the roof girder, The roof girders include a rear roof girder, a front roof girder, a first intermediate roof girder, and a second intermediate roof girder, the first intermediate roof girder is disposed between the rear roof girder and the front roof girder, The second intermediate roof girder is disposed between the adjacent rear roof girder and the first intermediate roof girder, and between the adjacent front roof girder and the first intermediate roof girder, The front roof girder, the first intermediate roof girder, and the second intermediate roof girder are movable in a direction perpendicular to the girder axis of the roof girder, which is perpendicular or substantially perpendicular to the girder axis direction of the roof girder, and is horizontal or substantially horizontal, The telescopic device includes a multi-joint link mechanism and a control line; the multi-joint link mechanism includes a rear arm mechanism and a front arm mechanism that are disposed below the roof girder and in a vertical or substantially vertical plane, the rear arm mechanism is a mechanism in which a V-shape is formed by a rear arm that is pin-connected to the rear roof girder by a rear fixed pin and an intermediate arm that is pin-connected to the first intermediate roof girder by an intermediate fixed pin, and the rear arm and the intermediate arm are pin-connected to each other by a rear movable pin, the forearm mechanism is a mechanism in which a V-shape is formed by a forearm that is pin-connected to the front roof girder by a front fixed pin and the intermediate arm that is pin-connected to the first intermediate roof girder by the intermediate fixed pin, and the forearm and the intermediate arm are pin-connected to each other by a front movable pin, The second intermediate roof girder is provided with an intermediate fixed pulley that can rotate in a vertical or approximately vertical plane, The rear arm is provided with a rear arm pulley that is rotatable in a vertical or substantially vertical plane, The forearm is provided with a forearm pulley that is rotatable in a vertical or substantially vertical plane; The intermediate arm is provided with an intermediate arm pulley that is rotatable in a vertical or substantially vertical plane, one end of the control line is fixed to the front roof girder, and the control line is hung on the front fixed pin, looped around the front arm pulley, looped around the intermediate fixed pulley, looped around the intermediate arm pulley of the intermediate arm constituting the front arm mechanism, looped around the intermediate fixed pin, looped around the intermediate arm pulley of the intermediate arm constituting the rear arm mechanism, looped around the intermediate fixed pulley located closer to the rear roof girder than the intermediate fixed pin, looped around the rear arm pulley, and hung on the rear fixed pin; When the control line is pulled in the rearward direction from the front roof girder toward the rear roof girder, the front roof girder, the first intermediate roof girder, and the second intermediate roof girder move in the forward direction from the rear roof girder toward the front roof girder. A mobile roof structure characterized by:

8. The roof girders include two or more of the first intermediate roof girders, The second intermediate roof girder is also disposed between two adjacent first intermediate roof girders, the multi-joint link mechanism includes one or more intermediate arm mechanisms disposed below the roof girder in a vertical or substantially vertical plane; the intermediate arm mechanism is a mechanism in which a V-shape is formed by two intermediate arms that are pin-connected to two adjacent first intermediate roof girders by the intermediate fixed pins, and the intermediate arms are pin-connected to each other by an intermediate movable pin, the control line is passed around the intermediate arm pulley of the intermediate arm constituting the front arm mechanism and passed around the intermediate fixed pin, and then passed around the intermediate arm pulley of the intermediate arm on the forward direction side of the intermediate arms constituting the intermediate arm mechanism, passed around the intermediate fixed pulley, passed around the intermediate arm pulley of the intermediate arm on the rearward direction side of the intermediate arms constituting the intermediate arm mechanism, passed around the intermediate fixed pin in the rearward direction from the intermediate movable pin, and passed around the intermediate arm pulley of the intermediate arm constituting the rear arm mechanism.

8. The mobile roof structure according to claim 7.

9. In the structure of the facility's roof, A plurality of roof girders arranged in parallel or approximately parallel; An expansion device attached to the roof girder, The roof girders include a rear roof girder, a front roof girder, a first intermediate roof girder, and a second intermediate roof girder, the first intermediate roof girder is disposed between the rear roof girder and the front roof girder, The second intermediate roof girder is disposed between the adjacent rear roof girder and the first intermediate roof girder, and between the adjacent front roof girder and the first intermediate roof girder, The front roof girder, the first intermediate roof girder, and the second intermediate roof girder are movable in a direction perpendicular to the girder axis of the roof girder, which is perpendicular or substantially perpendicular to the girder axis direction of the roof girder, and is horizontal or substantially horizontal, The telescopic device includes a multi-joint link mechanism and a control line; the multi-joint link mechanism includes a rear arm mechanism and a front arm mechanism that are disposed below the roof girder and in a vertical or substantially vertical plane, the rear arm mechanism includes a rear arm, an intermediate arm, and a base member, one end of the rear arm is connected to the rear roof girder with a pin, one end of the intermediate arm is connected to the first intermediate roof girder with a pin, the other end of the rear arm is connected to the base member with a pin, and the other end of the intermediate arm is connected to the base member with a pin, the forearm mechanism includes a forearm, the intermediate arm, and the base member, one end of the forearm being connected to the front roof girder with a pin, one end of the intermediate arm being connected to the first intermediate roof girder with a pin, the other end of the forearm being connected to the base member with a pin, and the other end of the intermediate arm being connected to the base member with a pin, The first intermediate roof girder is provided with a first intermediate fixed pulley that can rotate in a vertical or approximately vertical plane, The second intermediate roof girder is provided with a second intermediate fixed pulley that can rotate in a vertical or approximately vertical plane, A rear moving pulley and a front moving pulley arranged closer to the front roof girder than the rear moving pulley are placed on the base material, one end of the control line is fixed to the front roof girder, and is looped around the front moving pulley of the front arm mechanism, looped around the second intermediate fixed pulley, looped around the rear moving pulley of the front arm mechanism, looped around the first intermediate fixed pulley, looped around the front moving pulley of the rear arm mechanism, looped around the second intermediate fixed pulley located closer to the rear roof girder than the first intermediate fixed pulley, and looped around the rear moving pulley of the rear arm mechanism, When the control line is pulled in the rearward direction from the front roof girder toward the rear roof girder, the front roof girder, the first intermediate roof girder, and the second intermediate roof girder move in the forward direction from the rear roof girder toward the front roof girder. A mobile roof structure characterized by:

10. The roof girders include two or more of the first intermediate roof girders, The second intermediate roof girder is also disposed between two adjacent first intermediate roof girders, the multi-joint link mechanism includes one or more intermediate arm mechanisms disposed below the roof girder in a vertical or substantially vertical plane; the intermediate arm mechanism includes two intermediate arms and the base material, one end of one intermediate arm being pin-connected to one of the adjacent first intermediate roof beams and the other end being pin-connected to the base material, and the other intermediate arm being pin-connected to the other adjacent first intermediate roof beam and the other end being pin-connected to the base material, the control line is looped around the rear moving pulley of the front arm mechanism, and further looped around the first intermediate fixed pulley, then looped around the front moving pulley of the intermediate arm mechanism, looped around the second intermediate fixed pulley located in the rearward travel direction from the first intermediate fixed pulley, looped around the rear moving pulley of the intermediate arm mechanism, looped around the first intermediate fixed pulley located in the rearward travel direction from the second intermediate fixed pulley, and looped around the front moving pulley of the rear arm mechanism.

10. The mobile roof structure according to claim 9.

11. Further provided is a membrane roof attached to the roof beam, The membrane roof is expanded when the space between the roof girders is opened, and is folded when the space between the roof girders is closed. A mobile roof structure according to any one of claims 1 to 10.

12. Further provided is a locking mechanism for connecting adjacent roof girders in the direction perpendicular to the girder axis, When two adjacent roof girders approach each other in the direction perpendicular to the girder axis, the locking mechanism couples the roof girders together, thereby restricting movement of the roof girders. A mobile roof structure according to any one of claims 1 to 11.

13. A plurality of rows of the expansion devices arranged in the girder axis direction are attached to the roof girder, Further provided is a brace material installed between adjacent roof girders in the direction perpendicular to the girder axis, One end of the brace material is fixed to the roof girder in the rearward travel direction, and the other end is fixed to the roof girder in the forward travel direction, The brace material is arranged so as to be a diagonal line of an area formed by the roof girder adjacent in the direction perpendicular to the girder axis and the expansion device adjacent in the direction of the girder axis. A mobile roof structure according to any one of claims 1 to 12.

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