JP3288587B2 - Opening / closing mechanism of opening / closing unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing mechanism for opening / closing an opening / closing unit constituting a frame such as an opening / closing roof.

[0002]

2. Description of the Related Art In recent years, for indoor athletic facilities and the like,
Large fixed dome roofs have been adopted. As a structure type of the fixed dome type roof, a steel truss structure and a cable structure using a single-layer truss or a multi-layer truss, and a structure combining these steel truss structure and cable structure are known. In such a fixed dome type roof, there is a roof having a membrane structure by a method in which a roof finishing material such as a metal plate is attached to the steel truss or a membrane expanded by filling with air is pressed by a cable structure.

By the way, even if the fixed dome roof is a roof having a membrane structure, it cannot be denied that the roof has a closed atmosphere. For this reason, in recent years, an open-close type membrane roof structure is being developed. For example, as the frame of the open / close type membrane roof structure, for example, a plurality of open / close units composed of a pair of open / close frames whose upper ends are rotatably connected are connected to form a bellows shape, and the plurality of open / close units are formed. It is conceivable to open and close the roof by opening and closing the opening / closing frame of the opening / closing unit with its upper end as a fulcrum while moving along the traveling path.

[0004]

When a large number of opening / closing units are connected as described above, it is necessary to stably drive the opening / closing units when traveling along a traveling path. The opening / closing unit has a pair of opening / closing frames that can be opened and closed with the upper end as a fulcrum, so that when a plurality of connected opening / closing units are moved along the traveling path,
For example, when the traveling path is inclined, the degree of opening / closing of each opening / closing unit is different, so that the traveling resistance to each opening / closing unit is different, and the traveling becomes unstable.

[0005] Therefore, it is conceivable to hold a pair of open / close frames of each open / close unit at a predetermined interval, and run the vehicle on a traveling path in this state. In order to hold the pair of open / close frames open at a predetermined interval, for example, a foldable connecting member is provided between the open / close frames, and the connecting member is stretched in a stretched state. The openable frame can be closed by holding the frame open at a predetermined interval and bending the connecting member.

However, it is difficult to sequentially open and close the pair of opening and closing frames of each of the opening and closing units at predetermined positions on the end side of the traveling path. In other words, since a plurality of open / close units are connected, while moving each open / close unit from the terminal end of the traveling path to the base end side, when sequentially closing from the open / close unit closer to the base end, Since the closing position of each opening / closing unit is sequentially shifted forward, it is difficult to bend the connecting member corresponding to the closing position.

When each of the opening / closing units is sequentially folded from the head (the one closer to the base end of the traveling path), the connecting member of each opening / closing unit includes the leading opening / closing unit at the end of the traveling path. Since the compression force is applied from the rear opening / closing unit from the stop at the time, each opening / closing unit holds the opening / closing frame of the opening / closing unit open until the folding unit is folded. It must be stretched so that it does not fold at the center.

The present invention has been made in view of the above circumstances, and enables an opening / closing unit to stably travel on a traveling path, and
By opening and closing the pair of opening and closing frames of each opening and closing unit sequentially at the end of the traveling path, the opening and closing unit can be opened and closed stably, and the connecting material that connects the opening and closing frames freely to open and close is compressed. An object of the present invention is to provide an opening / closing mechanism of an opening / closing unit that can be stretched.

[0009]

In order to achieve the above object, an opening / closing mechanism of an opening / closing unit according to a first aspect of the present invention is configured such that a plurality of opening / closing units can be moved by a plurality of traveling bodies traveling along a traveling path. And the opening / closing unit is provided so as to be extendable between the pair of opening / closing frames whose upper ends are rotatably connected, and between the opening / closing frames,
A linking member that allows the opening and closing frame to be opened and closed by using the upper end thereof as a fulcrum by extending the opening and closing frame, and the opening and closing frame adjacent to the opening and closing frame rotates the lower end of each opening and closing frame relative to the traveling body. The lower end of one of the open / close frames rotatably connected to the traveling body and connected to the traveling body is connected to the lower end of the open / close frame by a pressing portion. An opening and closing provided with the pressing portion is provided at an end of the connecting member, which is provided apart from the moving center and whose end is rotatably connected to the other opening and closing frame of the adjacent opening and closing frames. When the frame is closed, a pressed portion that is pressed by the pressing portion and bends the connecting member is provided.

[0010] Among the above-mentioned traveling bodies, the traveling body connected to the leading opening / closing unit is configured as a driving body. To drive the traveling body, a motor or the like is mounted on the traveling body itself. It may be driven directly by a motor, or a wire or the like may be connected to the traveling body, and the wire or the like may be connected to the motor to drive indirectly. Further, a traveling body other than the traveling body that functions as the driving body,
The vehicle travels along with the traveling body, which is the driving body.

The opening / closing unit includes a pair of opening / closing frames, and a connecting member which is extendably provided between the opening / closing frames and which can be opened / closed by extending the opening / closing frame with its upper end serving as a fulcrum. However, in order to construct a frame of an opening / closing roof using this opening / closing unit, for example, the opening / closing unit is arranged on the left and right sides, and a frame is erected between these opening / closing units. A pair of open / close frames whose upper ends are rotatably connected may be provided between the open / close units as needed.

The pressing portion is provided at a lower end portion of the opening / closing frame so as to rotate downward around a rotation center of the lower end portion of the opening / closing frame as the opening / closing frame closes. The pressed portion is provided at an end of the connecting member so that the pressing portion contacts from above when the pressing portion has been rotated by a predetermined amount, and is pressed by the pressing portion, so that the connecting member is It is configured to lift upward with the end part as a fulcrum.

In the opening / closing frame opening / closing mechanism of the first aspect, each opening / closing unit is moved from the terminal end of the traveling path to the base end side, and sequentially from the opening / closing unit closer to the base end. When closing, when the leading traveling body connected to the front opening / closing frame of the first opening / closing unit is moved toward the base end side of the traveling path, the compressive force is applied to each opening / closing unit in a direction to close the opening / closing frame. Works. Then, when the connecting member of the rearmost opening / closing unit having one of the opening / closing frames connected to the base end side of the traveling path is slightly bent, the connecting member of the rearmost opening / closing unit is bent by the compressive force. While closing (folding).

Next, as the rearmost opening / closing unit closes, the pressing portion provided on one of the opening / closing frames (the side not connected to the base end side of the traveling path) of the opening / closing unit moves downward. And immediately before the opening / closing frame is completely closed, abuts against and presses a pressed portion provided at the end of the joining member of the next opening / closing unit. Then, the connecting member of the next opening / closing unit is lifted upward with the end of the connecting member as a fulcrum through the pressed portion by the pressing portion, and the connecting member is slightly bent from its central portion, Further, while the connecting member is bent by the compressive force,
The next opening / closing unit is closing. Similarly, each of the opening / closing units is configured such that the connecting member is slightly bent by the pressing portion of the preceding opening / closing unit through the pressed portion, and the connecting member is opened and closed while being bent by the compressive force. When the unit is closed, it is sequentially closed (folded).

On the other hand, when each opening / closing unit is opened while moving each opening / closing unit from the base end to the end of the traveling path, the opening / closing unit is connected to the front opening / closing frame of the leading opening / closing unit. When the leading traveling body is moved toward the end of the traveling path, the opening / closing frame on the front side of the leading opening / closing unit is pulled out, so that the leading opening / closing unit is opened and the connecting member of the opening / closing unit is extended. To hold the opening frame open. Furthermore, when the traveling body is moved, the next opening / closing unit is pulled open by the first opening / closing unit, and
The connecting member of the next opening / closing unit extends to hold the opening / closing frame in an open state. Similarly, the opening / closing units are sequentially pulled out and opened one after another.

As described above, in the opening / closing mechanism of the opening / closing unit according to the first aspect, the connecting members of each opening / closing unit are successively bent so that the plurality of opening / closing units are sequentially and stably arranged at the end of the traveling path. Can be opened and closed. In addition, since each opening / closing unit can travel on the traveling path while the opening / closing frame is held in a state of being opened by a predetermined amount by the connecting member, stable traveling is possible.

According to a second aspect of the present invention, the opening / closing mechanism of the opening / closing unit according to the first aspect, wherein the connecting member comprises a pair of arms,
One end of each arm is rotatably connected to the opening / closing frame by a first hinge, respectively, and the other end of the arm is rotatably connected to each other by a second hinge. The arms are connected to each other so as to be eccentric to a position separated downward from a straight line connecting the first hinge portions when the connecting member is extended on a straight line.

At the other end of each of the pair of arms, there is provided an abutment plate which abuts each other when the connecting member is extended in a straight line and holds the connecting member in a substantially straight line.

According to the opening / closing mechanism of the opening / closing unit of the second aspect, the arms forming the connecting member are vertically rotated about the first hinge as a fulcrum, and the first hinges are moved toward and away from each other. When the second hinge moves in the vertical direction, the connecting member is folded from the second hinge and the opening / closing unit is opened and closed.

In a state where the opening / closing frame of the opening / closing unit is open, when a compressive force acts on the connecting member from the opening / closing frame, the second hinge portion moves slightly downward, and the connecting member moves downward from the second hinge portion. The opening and closing frame can be held in an open state by being slightly bent and held.

Accordingly, when the opening / closing unit travels on the traveling path, even if a compressive force acts on the opening / closing unit, the opening / closing unit can be stably run with the opening unit open. Even if a tensile force acts on the second hinge, the second hinge moves slightly upward, and
Since the opening / closing frame can be held open at a predetermined angle against the pulling force in a state where the opening / closing unit is slightly bent upward from the hinge portion, it is possible to stably travel with the opening / closing unit kept open. Can be.

According to a third aspect of the present invention, the opening / closing mechanism of the opening / closing unit is provided with a holding mechanism for holding the opening / closing unit in a closed state when the opening / closing unit is closed. It is what is being done.

The holding mechanism is provided, for example, on each of a pair of opening / closing frames constituting an opening / closing unit, at portions opposed to each other when the opening / closing frame is closed. The holding force of the holding mechanism is set smaller than the pulling force of the opening / closing frame when the opening / closing unit is opened by the driving force of the traveling body.

The holding mechanism may be configured, for example, such that one of the open / close frames is provided with an engagement concave portion, and the other of the open / close frames is provided with an engagement convex portion detachably engaged with the engagement concave portion. Alternatively, the opening and closing frames may be held in a closed state by a permanent magnet, an electromagnet, or the like, but is not limited thereto.

In the opening / closing mechanism of the opening / closing unit according to claim 3, when each of the opening / closing units is closed from the terminal end of the traveling path toward the base end, the opening / closing unit is closed by the holding mechanism. Since the opening / closing unit is held, it is possible to prevent the opening / closing unit from unexpectedly opening, and it is possible to stably hold the opening / closing unit against rattling due to an earthquake or the like or swaying due to wind or the like.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an opening / closing mechanism of an opening / closing unit according to the present invention will be described below with reference to the drawings. Before that, the structure of an opening / closing type membrane roof provided with the opening / closing mechanism will be described. I do. As shown in FIGS. 1 and 2, the openable / closable membrane roof structure has two arched traveling rails (traveling paths) 10, 10 arranged in parallel with each other, and traveling on the traveling rails 10, 10. Opening / closing roof 12, comprising a plurality of roof units 11 provided freely and sequentially,
12 are provided.

The running rails 10, 10 are provided on two arched keel trusses 13 arranged in parallel with each other. Therefore, a large space without pillars can be formed below the openable roofs 12, 12, which is optimal as a membrane roof structure of a facility where various events, events, and athletic competitions are performed. Opening / closing roofs 12, 12 composed of the plurality of roof units 11,... Are arranged on both sides of a longitudinal center portion of the traveling rails 10, 10, respectively. Therefore, the openable and closable roofs 12 and 12 open and close starting from the center of the traveling rail 10.

In the above description, the two open / close roofs 12, 12 are provided with the longitudinal center of the traveling rails 10, 10 as a boundary.
Are arranged so that they can be opened and closed on both sides from the center by these open / close roofs 12 and 12. However, only one open / close roof is provided on the traveling rail 10, and from one side to the other side, It may be configured to open and close.

The roof unit 11 is shown in FIGS.
As shown in FIG. 1, the cross-section is substantially triangular in cross-section, and is provided with a pair of opening / closing units 14 and 14 arranged on both right and left sides. The opening / closing unit 14 includes a pair of opening / closing frames 16, 16 whose upper ends are rotatably connected.
And extendable and extendable between the open / close frames 16, 16.
And a connecting member 17 that can be opened and closed with its upper end as a fulcrum. The opening / closing frames 16, 16 have joint portions 16a, 16a formed horizontally at the upper ends thereof, and are rotatably connected by connecting the joint portions 16a, 16a with each other by pins 16b.

The pair of opening / closing units 14, 14
Between them, a total of four steel members 18... The ends of the two upper steel members 18, 18 are fixed to the upper ends of the open / close frames 16, 16 of the open / close unit 14, and the ends of the two lower steel members 18, 18 are connected to the open / close unit 14. Are fixed to the lower ends of the open / close frames 16, 16.
4, 14 are connected.

Further, between the steel members 18, 18 whose ends are fixed to the upper and lower ends of the opening / closing frame 16, a plurality of lattice members 20 are installed obliquely with respect to the steel members 18, 18, respectively. I have. Further, the pair of opening / closing units 14, 1
Between the four, a plurality of opening and closing bodies 21 are arranged at a predetermined interval,
These opening / closing bodies 21 are connected to the middle of the steel members 18.

The opening / closing units 14 are connected to the traveling wheels (traveling bodies) 2 at the lower ends of the adjacent opening / closing frames 16, 16 of the adjacent opening / closing units 14, 14.
2 are connected by being rotatably connected.
The running wheels 22 run while rolling on a running rail (running path) 10 provided on the keel truss 13, and the leading running wheel 22 is a driving wheel. In order to drive the leading traveling wheel 22, a motor or the like may be mounted on the traveling wheel 22 and directly driven by the motor, or a wire or the like may be connected to the traveling wheel and the wire or the like may be connected to the motor. And may be indirectly driven.

The connecting member 17 includes a pair of arms 1.
7a, 17a, and one end of each of the arms 17a, 17a is connected to an open / close frame 16, 16 of the open / close unit 14.
The lower ends of the arms 17a, 17a are rotatably connected to each other by first hinges 23, 23, and the other ends of the arms 17a, 17a are rotatably connected to each other by a second hinge 24.

The second hinge 24 is connected to the connecting member 17.
When the arms 17a, 17a are extended in a straight line, the arms 17a, 17a are arranged so as to be eccentric to a position separated downward from a straight line connecting the first hinge portions 23, 23, respectively. At the other end of
Abutment plates 25, 25 that abut against each other when the connecting members 17 are extended in a straight line and hold the connecting members 17 in a substantially straight line;
Is provided.

In the opening / closing unit 14, the first hinges 23, 23 move toward and away from each other while the arms 17a, 17a pivot vertically about the first hinges 23, and By moving the second hinge portion 24 in the vertical direction, the connecting member 17 is moved to the second hinge portion 2.
4 to fold open and close.

The opening / closing frame 1 of the opening / closing unit 14
In a state where the connecting members 17 and 16 are open, when a compressive force acts on the connecting member 17 from the opening and closing frames 16 and 16, the second hinge portion 24 moves slightly downward, and the connecting member 17 moves downward from the second hinge portion 24. The contact plates 25, 25
Are held in a stretched state in contact with each other, whereby the openable frames 16, 16 can be held in an open state.

Therefore, when the opening / closing unit 14 travels on the traveling rail 10, even if a compressive force acts on the opening / closing unit 14, the opening / closing unit 14 can be stably run in a state of being opened, On the other hand, even if a pulling force acts on the opening / closing unit 14, the second hinge portion 25 moves slightly upward and the connecting member 17 is slightly bent upward from the second hinge portion 24, and resists the pulling force. Since the opening / closing frames 16, 16 can be held in an open state at a predetermined angle, the vehicle can be stably driven with the opening / closing unit 14 kept open.

A pressing portion 26 is provided at the lower end of the opening / closing frame 16 on the front side of the opening / closing unit 14. When the opening / closing frames 16 are closed, the pressing portion 26 comes into contact with a pressed portion 27 which will be described later.
The lower end of the opening / closing frame 16 is formed in a plate cam shape. The pressing portion 26 formed in a plate cam shape is separated from the rotation center O at the lower end of the opening / closing frame 16.
In a state in which the opening 16 is open, the opening 16 is separated from the pressed portion 27, and as the opening and closing frames 16, 16 close,
It is rotated downward around the rotation center O, contacts the pressed portion 27, and presses it from above immediately before the opening and closing frames 16, 16 are completely closed.

On the other hand, a pressed portion 27 is provided at an end of the connecting member 17 rotatably connected to a lower end of the opening / closing frame 16 on the rear side of the opening / closing unit 14 by a first hinge 23. ing. The pressed portion 27 is pressed by the pressing portion 26 when the opening / closing frame 16 provided with the pressing portion 26 is closed, and extends from the end of the connecting member 17 toward the pressing portion. The tip surface is pressed by the pressing portion 26.

The pressed portion 27 is provided at a position separated downward from the first hinge portion 23. Therefore, when the opening / closing frame 16 is closed, the pressed portion 26 is rotated by a predetermined amount. At this time, the pressing portion 2
6 come into contact with each other from above and are pressed by the pressing portion 26. When the pressed portion 27 is pressed by the pressing portion 26, the pressed portion 27 rotates counterclockwise about the first hinge portion 23, whereby the one arm 17a of the connecting member 17 connects the first hinge portion 23 to the first hinge portion 23. It is designed to be lifted upward as a fulcrum. When the one arm 17a is lifted upward, the connecting member 17 is bent from the second hinge portion 24. Therefore, each of the opening / closing units 14 provides a trigger for folding by the connecting member 17 being slightly bent by the pressing portion 26 via the pressed portion 27 immediately before the preceding opening / closing unit 14 is folded. It is supposed to be.

Each of the open / close units 14 is provided with a holding mechanism 30 for holding the open / close unit 14 in a closed state when the open / close unit 14 is closed. As shown in FIG. 9, the holding mechanism 30
4 is provided with an engagement recess 31 formed at the lower end of one opening / closing frame 16 and an engaging projection 32 formed at the lower end of the other opening / closing frame 16. The engagement recess 31 is a hole formed in the lower end side surface of the one opening / closing frame 16, and a leaf spring removably engages with the engagement protrusion 32 on the inner surface of the engagement recess 31. 31a, 31
a is provided.

The engaging projection 32 is provided upright on the side surface of the lower end of the other opening / closing frame 16, and has a head 32a large enough to be inserted into the engaging recess 31, and a head 32a. And a neck portion 32b smaller in diameter than 32a. The engaging projection 32 is connected to the opening / closing frame 16, 1.
6 is completely inserted into the engagement recess 31 when the leaf springs 31a and 31a are elastically engaged with the root of the head 32a. Is adapted to be engaged.

Further, the holding force of the holding mechanism 30 having the above-described structure,
In other words, the engaging projections 32 are formed by the leaf springs 31a, 31a.
Is set smaller than the pulling force of the opening / closing frame 16 when the opening / closing unit 14 is opened by the driving force of the traveling wheel 22. Therefore, the opening / closing unit 14 pulls one of the opening / closing frames 16 by the driving force of the traveling wheels 22,
The holding by the holding mechanism 30 is released, and the opening is performed smoothly.

As the holding mechanism 30, in addition to the above-described mechanism, for example, as shown in FIG.
The magnet 30a may be embedded in at least one of the opposing side surfaces of the pair of opening / closing frames 16, 16. The magnet 30a may be a permanent magnet or an electromagnet.

The open / close bodies 21 arranged between the pair of open / close units 14, 14 are arranged at predetermined intervals on the left and right as shown in FIG. 3, and each open / close body 21 is shown in FIG. As described above, the upper end portion is constituted by a pair of open / close frames 33 rotatably connected to each other.
3 and 33 are rotatably connected by connecting their upper ends with pins 33b. In addition, the upper and lower frames 33, 33 are provided at the upper ends thereof with the steel members 18, 1 erected above the opening units 14, 14, respectively.
8 and the opening / closing frames 33, 3
The lower end of 3 is connected to a middle part of a steel frame member 18, which is provided below the opening and closing units 14, 14.
Therefore, the opening and closing members 21 open and close following the opening and closing of the pair of opening and closing units 14 arranged on the left and right.

Further, a pair of opening / closing units 14, 14 arranged on the left and right, a plurality of opening / closing bodies 21 arranged between these opening / closing units 14, 14, the opening / closing units 14,
The roof unit 11 provided with the steel members 18 and the like provided between the members 14 has a film member 35 stretched on the upper surface side. The film material 35 is obtained by coating the surface of a base fabric made of glass fiber with Teflon. At the top of the roof unit 11, a shade 36 is provided to prevent leakage.

Next, the operation of the opening / closing mechanism of the opening / closing unit having the above configuration will be described. In this description, of the four open / close units 14,..., The leading open / close unit 14 is referred to as an open / close unit 14a, and the open / close units 14b,
Description will be made as 14c and 14d. In this description, 4
Although two opening / closing units 14 are illustrated and described, the number of opening / closing units 14 may be five or more.

(1) Each open / close unit 14 is connected to the traveling rail 1
A case in which the opening / closing unit 14 closer to the base end is sequentially closed while moving from the end of 0 to the base end. First, when the leading traveling wheel 22a connected to the front opening / closing frame 16 of the leading opening / closing unit 14a is moved toward the base end side of the traveling rail 10, the opening / closing frames 16, 16 are moved to each opening / closing unit 14. A compressive force acts in the closing direction. At this time, the connecting member 17 of the rearmost opening / closing unit 14d in which the rear opening / closing frame 16 is rotatably connected to the base end side of the traveling rail 10 via the fixing plate 36 (see FIG. 5) is bent. Then, the last opening / closing unit 14d closes (folds) while the connecting member 17 is being bent. When the opening / closing unit 14d is completely closed, the holding mechanism 30 allows the opening / closing unit 14d to be closed.
Is kept closed.

When the connecting member 17 of the rearmost opening / closing unit 14d is bent, for example, the second hinge portion 24 of the connecting member 17 is slightly pushed upward by an intruding rod which comes and goes from the traveling rail 10. Then, after that, the connecting member 17 is bent by the compressive force.

As the rearmost opening / closing unit 14d closes, the pressing portion 26 provided on the opening / closing frame 16 on the front side of the opening / closing unit 14d is rotated downward, and the opening / closing frame 14d is moved downward. Immediately before the door is completely closed, it contacts and presses the pressed portion 27 provided at the end of the joining member 17 of the next opening / closing unit 14c. Then, one of the arms 17a of the connecting member 17 of the opening / closing unit 14c is lifted upward by the pressing portion 26 via the pressed portion 27 with the first hinge portion 23 as a fulcrum. It is slightly bent from the second hinge part 24, and further, by the compressive force,
As shown in FIG. 5, the opening / closing unit 14c closes while the connecting member 17 is bent. Opening / closing unit 14c
Is completely closed, the opening and closing unit 14c is held in a closed state by the holding mechanism 30.

As the opening / closing unit 14c is closed, the opening / closing frame 16 on the front side of the opening / closing unit 14c is closed.
The pressing portion 26 provided in the opening and closing portion rotates and moves downward, and as shown in FIG. 6, immediately before the opening and closing frame 14c is completely closed, the pressing portion 26 is provided at the end of the joining member 17 of the next opening and closing unit 14b. And presses against the pressed portion 27. Then, as shown in FIG.
b, one arm 17a of the connecting member 17
As a result, the connecting member 17 is slightly bent from the second hinge portion 24 by being lifted upward with the first hinge portion 23 as a fulcrum via the pressed portion 27. As shown in FIG. 8, the opening / closing unit 14b closes while the connecting member 17 is bent. When the opening / closing unit 14b is completely closed, the holding mechanism 30 holds the opening / closing unit 14b in a closed state.

As the opening / closing unit 14b closes, the opening / closing frame 16 on the front side of the opening / closing unit 14b is closed.
Immediately before the opening / closing frame 14b is completely closed, the pressing portion 26 provided at the leading end of the connecting member 17 of the opening / closing unit 14a is pressed against the pressed portion 27 provided at the end of the connecting member 17 of the leading opening / closing unit 14a. It touches and presses it. Then, one arm 17a of the connecting member 17 of the leading opening / closing unit 14a is lifted upward by the pressing portion 26 via the pressed portion 27 with the first hinge portion 23 as a fulcrum, whereby the connecting member 17 is slightly bent from the second hinge portion 24, and further, while the connecting member 17 is bent by the compressive force, the opening / closing unit 14a is closed. When the opening / closing unit 14a is completely closed, the holding mechanism 30 holds the opening / closing unit 14a in a closed state.

(2) A case where each of the opening / closing units 14 is opened while moving each of the opening / closing units 14 from the base end of the traveling rail 10 toward the terminal end. First, when the leading traveling body 22 connected to the opening / closing frame 16 on the front side of the leading opening / closing unit 14a is moved toward the end of the traveling rail 10, the leading opening / closing unit 14a
When the front opening / closing frame 16 is pulled out, the leading opening / closing unit 14a is opened, and the connecting member 17 of the opening / closing unit 14a is extended to open / close the opening / closing frame 1.
4a is kept open.

Further, when the traveling body 22 is moved,
When the opening / closing frame 16 on the front side of the next opening / closing unit 14b is pulled out by the leading opening / closing unit 14a, the opening / closing unit 14b is opened, and the connecting member 17 of the opening / closing unit 14b extends to extend the opening / closing frame 14
b is kept open. Similarly, the opening / closing units 14c and 14d are sequentially pulled out and opened one after another.

As described above, in the opening / closing mechanism of the opening / closing unit of this embodiment, the connecting member 17 of each opening / closing unit 14 is pressed by the pressing portion 26 immediately before the preceding opening / closing unit 14 is completely closed.
Can be bent by pressing the pressed portion 27, so that the plurality of opening / closing units 14 can be bent one after another, and each opening / closing unit 14 moves the leading traveling wheel 22 forward. By this, it can be pulled out and opened one after another. Therefore, the plurality of opening / closing units 14 can be sequentially and stably opened and closed on the end side of the traveling rail 10. Moreover, in order to open and close the opening / closing units 14, only the leading traveling wheel 22 needs to be driven, and no other driving force is required.
Further, since the opening / closing units 14 are connected by rotatably connecting the lower ends of the opening / closing frames 16 adjacent to each other to the traveling wheel 22, the traveling rail 10 is provided with a curvature. Even if it is, it can be made to run stably.

Further, since each of the opening / closing units 14 can run on the traveling rail 10 with the opening / closing frames 16 and 16 held in a state of being opened by a predetermined amount by the connecting member 17, stable traveling is possible.

Further, when each of the open / close units 14 is closed from the terminal end of the traveling rail 10 toward the base end, the open / close units 14 are held in the closed state by the holding mechanism 30. The opening / closing unit 14 can be prevented from being unexpectedly opened, and the opening / closing unit 14 can be stably held against rattling due to an earthquake or the like or swaying due to a wind or the like.

Further, there are provided the open / close units 14, 14, a plurality of open / close bodies 21 disposed between the open / close units 14, 14, a steel frame member 18 provided between the open / close units 14, 14, and the like. The roof unit 11 itself has the membrane material 35 stretched over, so that the membrane material 35 does not flutter in any state of opening and closing the roof, and furthermore, the roof on which the membrane material 35 is stretched. Since the unit 11 becomes a stable triangular truss by extending the connecting members 17 of the opening and closing frames 16, 16, each roof unit 11
When the vehicle travels on the traveling rail 10, it is always in a structurally stable state. Therefore, the roof can be opened and closed smoothly even if the roof is opened and closed by the wind or the like.

Further, when each roof unit 11 travels on the traveling rail 10, it is always in a structurally stable state. Therefore, even if the roof unit 11 is stopped in the middle of the traveling rail 10, it is structurally stable. ing. Therefore, the roof unit 11 can be stopped in the middle of the traveling rail 10, and thereby the opening area of the roof can be easily adjusted.

In the present embodiment, an example in which the opening / closing mechanism of the opening / closing unit according to the present invention is applied to the roof unit 11 constituting an openable roof has been described. The present invention can be applied not only to the roof unit 11 but also to a wall unit or the like forming an openable wall.

FIGS. 11 to 14 show another example of the opening / closing mechanism of the opening / closing unit according to the present invention. The difference between the opening / closing mechanism of the opening / closing unit shown in these figures and the opening / closing mechanism of the opening / closing unit shown in FIG. 5 to FIG. Since they are shaped, they will be described, and the other common parts will be assigned the same reference numerals and description thereof will be omitted.

That is, in this example, a pressing portion 37 is provided at the lower end of the opening / closing frame 16 on the front side of the opening / closing unit 14. The pressing portion 37 has a substantially quarter-disk shape, and has one linear end surface fixed to the outer side surface of the lower end portion of the opening / closing frame 16, and the other linear end surface having a pressed portion 38. Is pressed.

The pressed portion 38 is formed by extending downwardly from the end of the connecting member 17 toward the pressing portion in an arcuate shape.
To be pressed. The pressed portion 38 is pressed by the pressing portion 37 when the pressing portion 37 rotates by a predetermined amount due to the closing of the opening / closing frame 16, and is pressed by the pressing portion 37. It has become.

In the opening / closing mechanism of the opening / closing unit of this example, each opening / closing unit 14 is moved from the terminal end of the traveling rail 10 to the base end side, and is sequentially closed from the opening / closing unit closer to the base end. In this case, as shown in FIGS. 11 to 14, when the leading traveling wheel 22 is moved toward the base end of the traveling rail 22, a compressive force acts on each opening / closing unit 14 in a direction to close the opening / closing unit 14, Last open / close unit 14
When the connecting member 17 of d is bent, the rearmost opening / closing unit 14d closes (folds) while the connecting member 17 is being bent.

Next, as the last opening / closing unit 14d is closed, the pressing portion 37 of the opening / closing unit 14d is rotated downward, and immediately before the opening / closing unit 14d is completely closed, the next opening / closing operation is performed. Pressed portion 38 of unit 14c
And pressed against it. Then, the connecting member 17 of the opening / closing unit 14c is lifted upward as the fulcrum of the first hinge portion 23 by the pressing portion 37 via the pressed portion 38, and the connecting member 17 is slightly bent by the second hinge portion 24. Bent, and furthermore, by the compressive force,
Is folded while the opening / closing unit 14c closes. Similarly, the opening / closing units 14b and 14a are connected to the opening / closing units 14c and 14
b is slightly bent by the pressing portion 37 via the pressed portion 38, and the connecting members 17 are bent by the compressive force while the opening / closing units 14b and 14a are closed. (Fold)

On the other hand, when each of the open / close units 14 is opened while moving each of the open / close units 14 from the base end to the end of the travel rail 10, the leading traveling wheel 22 is moved to the travel rail 10. By moving toward the terminal end, the opening / closing units 14a, 14b, 14c,
14d are pulled out one after another, and the respective connecting members 1 of the opening / closing units 14a, 14b, 14c, 14d.
7 extend one after another to hold the openable frame open.

As described above, even in the opening / closing mechanism of the opening / closing unit of this embodiment, the connecting members 17 of the respective opening / closing units 14 are successively bent so that the plurality of opening / closing units 14 are sequentially and stably opened and closed at the end of the traveling rail. In addition, each opening / closing unit 14 can travel on the traveling rail 10 while the opening / closing frame 14 is held in a state of being opened by a predetermined amount by the connecting member 17, so that stable traveling is possible.

[0068]

As described above, according to the first aspect of the present invention,
The open / close mechanism of the open / close frame has multiple open / close units.
The opening / closing unit is provided movably and sequentially by a plurality of traveling bodies traveling along a traveling path, and the opening / closing unit extends between a pair of opening / closing frames whose upper ends are rotatably connected to each other. A linking member that is foldably installed, and that can be opened and closed by using the upper end thereof as a fulcrum by extending the opening and closing frame, wherein the opening and closing frame is rotatably connected to the traveling body and adjacent to each other. A pressing portion is provided at a lower end portion of one of the opening and closing frames at a distance from a rotation center of the lower end portion of the opening and closing frame, and the other of the adjacent opening and closing frames is pressed by the pressing portion. Since the pressed portion for bending the connecting member is provided, the connecting portion of each opening / closing unit is pressed by the pressing portion to press the pressed portion immediately before the preceding opening / closing unit is completely closed. It can be bent Te. Therefore, a plurality of opening / closing units can be folded and closed one after another, and each opening / closing unit can be pulled out and opened one after another by moving the leading traveling body forward. It can be opened and closed sequentially and stably at a predetermined position on the end side of the traveling path.

Further, in order to open and close the opening / closing units, it is only necessary to drive the leading traveling body, and no other driving force is required. Further, since the opening / closing units are connected by rotatably connecting the lower ends of the opening / closing frames adjacent to each other to the traveling body, the traveling unit can stably travel even if the traveling path has a curvature. Can be done. In addition, since each opening / closing unit can travel on the traveling rail while the opening / closing frame is held in a state of being opened by a predetermined amount by the connecting member, stable traveling is possible.

According to a second aspect of the present invention, in the opening and closing mechanism for the opening and closing unit according to the first aspect, the connecting member is constituted by a pair of arms,
One end of each arm is rotatably connected to the opening / closing frame by a first hinge, and the other end of the arm is rotatably connected to each other by a second hinge. The second hinge is Since the arms are connected to each other so as to be eccentric to a position separated downward from a straight line connecting the first hinge portions when the connecting member is extended on a straight line, the opening / closing frame of the opening / closing unit is opened. In this state, when a compressive force acts on the connecting member from the opening / closing frame, the second hinge portion moves slightly downward, and the connecting member is slightly bent downward from the second hinge portion and held in a stretched state. Even if a pulling force is applied to the opening / closing unit, the second hinge part moves slightly upward, and
Since the opening / closing frame can be held open at a predetermined angle against the pulling force in a state where the opening / closing unit is slightly bent upward from the hinge portion, it is possible to stably travel with the opening / closing unit kept open. Can be.

According to a third aspect of the present invention, the opening / closing unit has a holding mechanism for holding the opening / closing unit in a closed state when the opening / closing unit is closed. Since each opening / closing unit is held closed by the holding mechanism when each opening / closing unit is closed from the terminal end of the traveling path toward the base end side, the opening / closing unit is unexpectedly Opening can be prevented, and rattling due to an earthquake,
The opening / closing unit can be stably held against the wind and the like.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an example of an opening / closing type membrane roof to which an opening / closing mechanism of an opening / closing unit of the present invention is applied, showing a fully closed state thereof.

FIG. 2 is a schematic perspective view showing a fully opened state of the openable membrane roof.

FIG. 3 is a perspective view showing one roof unit.

FIG. 4 is a side view showing the opening / closing body.

FIG. 5 is a side view showing an example of the opening / closing mechanism of the opening / closing unit of the present invention, showing a state in which a rearmost opening / closing unit is closed.

FIG. 6 is a side view showing a state immediately before the opening / closing unit immediately before the rear end is completely closed.

FIG. 7 is a side view showing a state in which the opening / closing unit two positions before the last is starting to close.

FIG. 8 is a side view showing a state in which the opening / closing unit two positions before the last is closed.

FIG. 9 is a partially cutaway side view showing the holding mechanism.

FIG. 10 is a partially broken side view showing another example of the holding mechanism.

FIG. 11 is a side view showing another example of the opening / closing mechanism of the opening / closing unit of the present invention, showing a state in which a rearmost opening / closing unit is closed.

FIG. 12 is a side view showing a state immediately before the opening / closing unit immediately before the rear end is completely closed.

FIG. 13 is a side view showing a state in which the opening / closing unit two positions before the last is starting to close.

FIG. 14 is a side view showing a state in which the opening / closing unit two positions before the last is closed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Travel rail (travel path) 14 Opening / closing unit 16 Opening / closing frame 17 Connecting material 17a Arm 22 Traveling wheel (traveling body) 23 1st hinge part 24 2nd hinge part 26, 37 Press part 27, 38 Press part 30 Holding mechanism

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akira Taga 2-10-26 Fujimi, Chiyoda-ku, Tokyo Inside Maeda Construction Industries Co., Ltd. (72) Inventor Ikuo Tatemichi 2-10-26 Fujimi, Chiyoda-ku, Tokyo Construction Industry Co., Ltd. (72) Inventor Satoshi Fujiwara 2--10-26 Fujimi, Chiyoda-ku, Tokyo Maeda Construction Industry Co., Ltd. (72) Inventor Toshio Shima 2-26, Fujimi 2-chome, Chiyoda-ku, Tokyo Maeda Corporation Incorporated (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04B 7/16 E04H 15/44 E04B 1/32

Claims (3)

(57) [Claims] A plurality of opening / closing units are provided so as to be able to travel and are successively provided by a plurality of traveling bodies traveling along a traveling path, and the opening / closing units have a pair of upper ends rotatably connected to each other. An opening / closing frame, and a connecting member that is extendably stretched between the opening / closing frames and that can be opened / closed by extending the opening / closing frame with its upper end serving as a fulcrum. The lower end portion of each open / close frame is connected to the frame by being rotatably connected to the traveling body, and one of the open / close frames adjacent to each other and rotatably connected to the traveling body is connected to the traveling body. At the bottom,
An end portion of the connecting member, wherein a pressing portion is provided apart from a rotation center of a lower end portion of the opening / closing frame, and an end portion is rotatably connected to the other opening / closing frame of the adjacent opening / closing frames. A pressurized portion that is pressed by the pressing portion to bend the connecting member when the opening and closing frame provided with the pressing portion is closed is provided. 2. The opening / closing mechanism of an opening / closing unit according to claim 1, wherein the connecting member is constituted by a pair of arms, and one end of each arm is rotatably connected to the opening / closing frame by a first hinge. The other end portions of the arms are rotatably connected by a second hinge portion, and the second hinge portion is located below a straight line connecting the first hinge portions when the connecting member is extended in a straight line. An opening and closing mechanism of the opening and closing unit, wherein the arms are connected to each other so as to be eccentric to a position apart from the arm. 3. The opening / closing mechanism for an opening / closing unit according to claim 1, wherein each of said opening / closing units is provided with a holding mechanism for holding said opening / closing unit in a closed state when said opening / closing unit is closed. Opening / closing mechanism of the opening / closing unit.