JPH0776470B2 - Retractable roof safety device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a roof structure, and more particularly to a safety device for an openable roof that can be partially opened and closed depending on the weather.

《Prior art》 Recently, all-weather stadiums have been attracting attention, and the roof part has been partially opened and closed according to the weather, allowing natural lighting and ventilation in fine weather, and athletic competition even in rainy weather. Development is desired. Therefore, the applicant of the present invention has proposed that a side wall erected on the ground, a fixed roof fixedly provided on the side wall and having an opening formed therein, and stacked on the fixed roof so as to be slidably movable in multiple layers relative to each other. A plurality of movable roofs, each of which is slidably moved toward the opening to cover the opening so as to be openable and closable, and a drive unit which is connected to each of the movable roofs via a traction member and drives the movable roof. We have proposed a retractable roof equipped with it (Japanese Patent Application No. 61-79099).
(See Japanese Patent Laid-Open No. 62-236939).

<< Problems to be Solved by the Invention >> The present invention is an improvement invention to the above-mentioned applicant's application, and an object thereof is to configure an opening / closing device for a movable roof with a simple moving mechanism, and the moving mechanism is movable. An object of the present invention is to provide a safety device for a retractable roof with a safety device that automatically stops the roof.

<< Means for Solving the Problems >> In order to achieve the above-mentioned object, the safety device for a retractable roof according to the present invention includes a fixed roof so as to openably and closably cover an opening 19 formed in the fixed roof 9. 9, movable roofs 11 and 13 provided so as to be movable from above to the opening 19, and the opening 1
In a retractable roof 1 having a support beam 15 provided inside the movable roof 11 and 13 for guiding the movement of the movable roofs 11 and 13 to the opening 19, a rail 23 provided on the support beam 15 and the movable beam It is provided on the roofs 11 and 13, and while supporting it, the rail 23
Traveling trolleys 21 and 21a traveling above, and a traction member 27 that is routed along the rails 23 via the traveling trolleys 21 and 21a and is tensioned to drive and drive the traveling trolleys 21 and 21a. And a drive means 26 for pulling by introducing tension to the pulling member 27, and the traveling carriages 21 and 21a are rotated so that the pulling member 27 is wound and the tension is converted into a rotational driving force. Seed
41, an axle 31 connected to the sheave 41 via gear trains 33, 36, 37, 38 and rotated, and a wheel 21f attached to the axle 31 and rotationally traveling on the rail 23. A traveling mechanism 21d is provided, and between the axle 31 and the sheave 41,
In order to prevent the axle 31 from freely rotating, a worm gear 39 whose rotation axis is arranged orthogonal to the axle 31 is featured.

Further, the safety device for the retractable roof according to the present invention is a fixed roof 9
The movable roofs 11 and 13 movably provided on the fixed roof 9 toward the opening 19 and the opening 19 formed in the opening 19 so as to cover the opening 19 that can be opened and closed. A support beam 15 for guiding the movement of the movable roofs 11 and 13 to the opening 19.
In the retractable roof 1 having a rail 23 provided on the support beam 15 and the movable roofs 11 and 13,
A trolley that is run on the rail 23 while supporting this
21,21a, a traction member 27 that is routed along the rail 23 via the traveling carriages 21 and 21a, and tension is introduced to drive the traveling carriages 21 and 21a to travel, and to the traction member 27. The driving means 26 for introducing and pulling tension is provided between the support beam 15 and the traveling carriages 21 and 21a, and the tension of the towing member 27 is lost, so that the traveling carriages 21 and 21a are supported. And a braking means 34 for engaging with.

<< Operation >> To describe the operation of the present invention, the traveling carriages 21 and 21a for moving the movable roofs 11 and 13 while supporting the movable roofs 11 and 13 are pulled by the towing member 27 to which the driving force of the driving means 26 is introduced as tension. It is driven by being driven and runs on the rail 23 on the support beam 15. In the traveling carriage 21, 21a towed and driven in this way, for example, the tow member 27
If the tension acting on the traction member 27 is lost due to, for example, breakage, the traveling operation becomes impossible, resulting in an emergency. In the first aspect of the present invention, the sheave 41 is wound around the traveling carriages 21 and 21a, and the pulling member 27 is wound to rotate the pulling member 27 into a rotational driving force. Row 33,3
Axle 31 connected via 6,37,38 and rotated, and axle 3
The structure is provided with a traveling mechanism 21d that is attached to 1 and that rotates and travels on the rails 23 on the rails 23d, and between the axles 31 and the sheaves 41 of the traveling carriages 21 and 21a, free rotation of the axle 31 is performed. In order to prevent it, the rotation shaft is provided with the worm gear 39 arranged orthogonally to the axle 31, so that the free rotation of the axle 31 that can occur when the tension of the traction member 27 is lost, specifically, the wheel 21f. Free running can be blocked by the worm gear 39 whose rotation axis is orthogonal to the axle 31, and the safety of the openable roof 1 of this type can be ensured.

On the other hand, in the second invention, the support beam 15 and the traveling carriages 21, 2
Loss of tension of the traction member 27 between 1a and the traveling carriage 21,21a
Since the braking means 34 for engaging the supporting beam 15 with the supporting beam 15 is provided, the traveling carriages 21, 2 are moved by the braking means 34 in such an emergency.
1a can be forcibly stopped against the support beam 15,
The safety of the retractable roof 1 can be ensured as in the first aspect of the invention.

The braking means 34 is a traction member provided on the traveling carriage 21, 21a.
27 can be composed of the actuating members 49, 52, 53 that are actuated by the loss of tension, and the rack 42 that is provided along the longitudinal direction of the support beam 15 and on which the actuating members 49, 52, 53 are engaged. . Specifically, the operating members 49, 52, 53 are mounted on the traveling carriages 21, 21a on the rack 42.
A pawl 49 that is rotatably supported so as to face the vehicle, a spring means 53 that is provided between the pawl 49 and the traveling carriages 21 and 21a, and biases the pawl 49 toward the rack 42, and the traveling carriage 21. And a holding member 52 that holds the pawl 49 in a direction in which it is separated from the rack 42 against the spring means 53 by the tension introduced into the pulling member 27 that is routed via the cables 21a.

<Example> Hereinafter, a preferred example of the present invention will be described with reference to the drawings. In this embodiment, an opening formed in the fixed roof 9
The movable roofs 11 and 13 are provided so as to be movable from the fixed roof 9 toward the opening 19 so as to cover the openable and closable 19 and to the opening 19 of the movable roofs 11 and 13 provided in the opening 19. Dome-shaped retractable roof 1 with support beams 15 for guiding the movement of
As shown in FIG. 1, the retractable roof 1 mainly has a ring-shaped side wall 3 standing on the ground, and a ring formed on the side wall 3 along the circumferential direction thereof. The fixed roof 9 has an outer peripheral edge fixed to the outer peripheral beam 5 provided on the upper edge peripheral edge of the side wall 3, and an annular beam 7 is attached to the inner peripheral edge of the fixed roof 9. Has been. And in the central part of this fixed roof 9, an opening 19
Are formed.

The fixed roof 9 is formed in the outermost part of the three parts divided by two concentric circles drawn with radii of approximately 1/3 and 2/3 of the radius of the flat circular roof surface, respectively. .

In the opening 19, there are provided six support beams 15 which are pivotally supported by the annular beam 7 and which are supported by the semicircular beam 2 and which are moved on the beam 2 by rollers or the like. These support beams 15 are swiveled and stored on the fixed roof 9 side when the opening 19 is opened, and when the opening 19 is closed, the opening 19 is provided to guide the movement of the movable roofs 11 and 13. It is designed so that it can be swung toward the center of the car.

Each of the movable roofs 11 and 13 is set to have an outer dimension corresponding to each of the two inner portions of the three portions divided by the two concentric circles described above. More specifically, the movable roofs 11 and 13 are further divided into 6 sectors in a fan shape with a central angle of 60 ° from the center of the flat circular roof surface, and the center side of the roof is the upper movable roof 11 and the fixed roof 9 side is It is configured as a lower movable roof 13 and is arranged in multiple layers so as to be slidable relative to each other.

Guide rails 17 are provided on the fixed roof 9 for slidably supporting both end portions of the lower movable roof 13, whereby the lower movable roof 13 can slide with respect to the fixed roof 9. There is. Further, guide rails 17a are provided on the lower movable roof 13 to slidably support both end portions of the upper movable roof 11, whereby the upper movable roof 11 can slide with respect to the lower movable roof 13. It is like this.

With the opening 19 opened, the upper movable roof 11 slides on the guide rails 17a of the lower movable roof 13 and the lower movable roof 13
The lower movable roof 13 slides on the guide rails 17 of the fixed roof 9 and is stacked and accommodated on the fixed roof 9. When closing the opening 19, the upper movable roof 11 is moved on the support beam 15 while sliding the upper movable roof 11 with respect to the lower movable roof 13, and the lower movable roof 13 is slid with respect to the fixed roof 9 while the support beam 15 is being moved. By moving up,
The roof can be closed.

Next, the details of the moving mechanism 24 for the movable roofs 11 and 13 will be described in the second section.
Shown in FIGS.

Following the fixed roof side ends (rear ends) of the movable roofs 11 and 13, follower trucks 20 and 20a are attached, respectively, while on the other hand, below the opening side ends (front end) of the movable roofs 11 and 13, there are tractions. Driven traveling carts 21 and 21a are attached, respectively. Traveling trolley
The structure of 21 (the same structure of the traveling carriage 21a) is a general one as shown in the outline of FIG. 3 and FIG. 4, and it is a box-shaped body frame 21e and this body frame 21e.
It has a four-wheeled vehicle structure including a pair of front and rear axles 31 and 31a rotatably supported by a pair of wheels and wheels 21f provided at both ends of the axles 31 and 31a. The configuration is the same for the follower trucks 20 and 20a.

The traveling carriages 21 and 21a are movably arranged on rails 23 provided on the support beams 15, while the trailing carriages 20 and 20a of the lower movable roof 13 are fixed roofs 9 and 20.
On the upper guide rail 17, the follower truck 20 of the upper movable roof 11 is movably arranged on the guide rail 17a on the lower movable roof 13.

On the other hand, at the base end portion of the support beam 15 on the fixed roof side, drive wheels 26 as drive means are arranged corresponding to the upper and lower movable roofs 11 and 13, respectively. The drive wheel 26 is a drum-shaped drive wheel that is connected to an output shaft of a drive device such as a motor via a speed reducer formed of gears. Further, like the drive wheel 26, a turning sheave 40 is provided at the tip of the support beam 15 on the opening side so as to correspond to the movable roofs 11 and 13.

As a member for transmitting the driving force of the drive wheels 26 to the traveling carriages 21, 21a, tension is introduced by the driving wheels 26 and the traveling carriages 21, 2a are
A towing member 27 for towing the 1a is adopted, and as the towing member 27, for example, a metal rope is used. Then, the traction member 27 is arranged along the rail 23 and the guide rail 17 and passes through the traveling carriages 21 and 21a, and further, the drive wheels 26 of the base end and the tip of the support beam 15 and the traction member 27. Between the turning sheaves 40 that change the installation direction, they are installed in an endless ring shape.

Along the longitudinal direction of the rail 23 and the guide rail 17 along which the traction member 27 is provided, smoothness of movement of the traction member 27 when tension is introduced by the drive wheels 26 to drive the traction member 27 is ensured and slack is prevented. A large number of guide rollers 28 are arranged side by side. Further, in order to prevent the traction member 27 from slipping on the outer peripheral surface of the drive wheel 26, the traction member 27 is hung around the drive wheel 26 several times.
Travels along the guide roller 28 through the turning sheave 40,
It is connected to 1,21a respectively.

When tension is applied to the towing member 27 by driving the drive wheels 26, the traveling carriages 21 and 21a travel on the rails 23 on the support beams 15, and the following carriage 20 moves on the guide rails 17 on the lower movable roof 13.
The following truck 20a travels on the guide rail 17 on the fixed roof 9 on the top a, whereby the movable roofs 11 and 13 are moved between the fixed roof 9 and the opening 19. .

Connection legs 29 are provided between the movable roofs 11 and 13 and the tracking vehicles 20 and 20a and the traveling vehicles 21 and 21a to connect them. In particular, the traveling carriages 21 and 21a travel on the same rail 23, while the following carriages 20 and 20a travel on the guide rails 17 and 17a of different heights on the fixed roof 9 and the lower moving roof 13, respectively. Since it will be traveling, the connection leg 29 on the traveling carriage 21 side for the upper movable roof 11 has a structure in which the inner cylinder is screwed into the outer cylinder and is configured to be height adjustable, The height can be adjusted by adjusting the screwing amount.

The overall configuration of the movable roofs 11 and 13 and the moving mechanism 24 is as described above. The safety device, which is a feature of the present invention, will be described in detail below with reference to FIGS. 3 and 4 together with the structure of the traveling mechanism 21d of the traveling vehicle 21 (the traveling vehicle 21a has the same structure) by the traction member 27. This safety device is basically incorporated in the traveling mechanism 21d of the traveling carriages 21 and 21a. The traveling mechanism 21d is rotated to convert the tension of the tow member 27 into a rotational driving force. Connected sheave 41
And an axle 31 which is connected to the connecting sheave 41 via gear trains 33, 36, 37, 38 and is rotated, and wheels 21f which are attached to the axle 31 and travel on the rail 23 for rotation. For the mechanism 21d, between the axle 31 and the connecting sheave 41, the axle 3
In order to prevent the free rotation of 1, the worm gear 39 whose rotary shaft is arranged orthogonal to the axle 31 constitutes a safety device.

The traveling carriage 21 is provided with a connecting sheave 41 on the driving force input side from the traction member 27 and an axle 31 on the traveling driving force output side, which are rotatably supported by bearings or the like. The connecting sheave 41 is configured such that the traction member 27 routed via the traveling carriage 21 is wound and rotationally driven, and the rotationally driven connecting sheave 41 and at least one axle 31. The following gear trains 33, 36, 37, 38 and a worm gear 39 are provided between them. That is, the connected sheave
A worm gear 39 is integrally connected to 41, a worm wheel 38 is meshed with the worm gear 39, and a rotation speed adjusting gear 37 and an idler gear 36
The drive gear 33 is meshed via the. The drive gear 33 is integrally attached to the axle 31. Therefore, the pulling force of the pulling member 27 rotates the connecting sheave 41, and this rotational driving force causes the worm gear 39 and the gear trains 33, 36, 3 to rotate.
Wheels 21f are rotated by being input to the axle 31 via 7,38, and the traveling carriage 21 travels on the rail 23. In particular, the axle 31 rotated with the traveling of the traveling carriage 21 and the rotation shaft of the worm gear 39 rotated by the connecting sheave 41 are arranged so as to be orthogonal to each other, and the worm gear 39 is rotated by the rotating force of the connecting sheave 41. Is driven to rotate, but is arranged so as not to be rotated by the rotational force transmitted from the axle 31. The pulling member 27 is preferably wound around the connecting sheave 41 one extra rotation so that the connecting sheave 41 does not idle. In the illustrated example, the rail 23
Are laid in parallel on the support beam 15 at regular intervals, and a traction member 27 is arranged between them.

A pair of sprockets 32, which are coaxial with the drive gear 33, are integrally attached to both ends of at least one axle 31 of the traveling carriage 21 configured as described above. further,
On the support beam 15 just below these sprockets 32,
Pin racks 30 are juxtaposed along the longitudinal direction of rails 23 on which the rails 21 run, and sprocket 32 is engaged with the pin racks 30. Then, the sprocket 32 and the pin rack 30 function so as to ensure smooth traveling movement when the movable roofs 11 and 13 are moved uphill. That is, slipping of the wheels 21f with respect to the rail 23 when moving the movable roofs 11 and 13 at an ascending slope is prevented by the engagement mechanism of the sprocket 32 and the pin rack 30, and particularly when the roof is closed. It is designed to facilitate operation.

Explaining the braking action of this embodiment, the drive wheels 26 are rotationally driven to introduce tension to the traction member 27, and
The pulling member 27 is guided between the turning sheave 40 while being guided by the pulling member 27.
When is moved, the connecting sheave 41 around which the pulling member 27 is wound is rotationally driven, and as a result, the traveling carriage 21 travels on the rail 23. In such a traveling state, when the tension acting on the traction member 27 is lost due to, for example, the traction member 27 breaking or the drive being stopped due to a failure on the drive wheel 26 side, You will not be able to operate the vehicle and you will end up in an emergency. At this time, the rotation shaft provided between the axle 31 of the traveling carriage 21, 21a and the connecting sheave 41 is
The worm gear 39 arranged orthogonally to 31 prevents free rotation of the axle 31, specifically the free running of the wheels 21f, and can stop the traveling carriages 21 and 21a.
It is possible to regulate the movement of 1,13. At this time, the gear train 33, 36, 37, 3 from the connecting sheave 41 to the axle 31
Together with the friction between them, the free rotation of the axle 31 can be reliably stopped. Thus, in an emergency, the worm gear 39 arranged orthogonal to the axle 31 causes the traveling carriage 21 to move.
Can be forcibly stopped on the support beam 15, and the safety of this kind of retractable roof 1 can be ensured.

As the pulling member 27, a steel rope, a metal rope, a chain, a belt, or the like can be arbitrarily selected, and the connecting sheave 41 and the deflecting sheave 40 may be changed to gears, sprockets, or the like correspondingly. Further, as the bearings of the gear trains 36, 37, 38 and the worm gear 39, oil-free ball bearings may be used. Further, the traveling carriage 21 has a configuration such that front and rear axles 31, 31a are configured so that it can be easily adapted to the curvature of the support beam 15.
Is preferably attached to the traveling carriage 21 via an equalizer.

On the other hand, the gear ratio of the rotation speed adjusting gear 37 is, of course, set so that the traveling speed of the traveling carriage 21 and the speed at which the sprocket 32 moves on the pin rack 30 are the same.

Next, a second embodiment is shown in FIGS. In this embodiment, between the support beam 15 and the traveling carriages 21 and 21a, a braking means 34 for engaging the traveling carriages 21 and 21a with the support beams 15 due to the loss of tension of the traction member 27 is provided. Specifically, the braking means 34 includes the operating members 49, 52, 53 provided on the traveling carriages 21, 21a and operated by the loss of tension of the pulling member 27, and the operating member 49 provided along the longitudinal direction of the support beam 15. , 52, 53 with which the rack 42 is engaged. Specifically, the operating members 49, 52,
53 is provided between the rotary claw 49 rotatably supported by the traveling carriages 21 and 21a so as to face the rack 42, and between the rotating pawl 49 and the traveling carriages 21 and 21a. The biasing coil spring 53 and the tension introduced into the traction member 27 routed via the traveling carriages 21 and 21a hold the rotating pawl 49 in a direction to separate it from the rack 42 against the pressing coil spring 53. And a pressing roller 52.

This example is characterized by the braking mechanism 34, and the method of driving the pulling member 27 and the method of winding it around are the same as those in the first embodiment. In the illustrated example, a saw-toothed rack 42 is shown, and the rack 42 is installed between a pair of rails 23 arranged in parallel and in parallel with the rails 23. In particular, the tooth tips of the rack 42 are formed to be inclined toward the tip end side of the support beam 15. The rack 42 is installed in association with the shock absorber 35 described below.

The shock absorber 35 includes a tension coil spring 46 and this tension coil spring.
It is composed of a spring fixing metal fitting 47 for fixing one end of 46 to the tip end side of the support beam 15, and a spring fixing metal fitting 48 for fixing the other end of the tension coil spring 46 to the rack 42. The shock absorber 35, when the tension coil spring 46 urges the rack 42 toward the tip end side of the support beam 15, while the force pressing the rack 42 toward the base end side of the support beam 15 acts, As will be described later, when the braking means 34 is activated, the rack
It is designed to allow 42 movements.

On the other hand, in the rack 42, in order to ensure the operation of the shock absorber 35, long holes 44 are formed in the vertical wall portion at appropriate intervals, and the long holes 44 are horizontally projected from the rails 23 to extend horizontally. 44
A rod-shaped rack support fitting 43 that is loosely engaged with is engaged. The allowable movement dimension of the rack 42 is set by the length dimension of the long hole 44. Furthermore, on the support beam 15,
A plurality of guide fittings 45 for slidably holding the lower edge of the rack 42 are provided at appropriate intervals.

The connecting sheave 41 is rotatably supported by the traveling carriage 21, and the pulling member 27 is wound around it, as in the first embodiment. A rotary claw 49, a pressing roller 52, and a pressing coil spring 53 are arranged for the pulling member 27 between the turning sheave 40 and the connecting sheave 41 similar to the above. Generally, the rotary pawl 49 to be locked to the teeth of the rack 42 is
It is rotatably supported by 50 and mounted on the traveling carriage 21 so as to face the teeth of the rack 42. The rotary claw 49 is locked to the rack 42 and brakes the movement of the traveling carriage 21 with respect to the support beam 15. The rotary claw 49 is provided with a pressing roller 52.
And the pressing coil spring 53.

Explaining also with reference to FIG. 7, the traveling carriage 21 is provided with a rectangular frame body 54, and inside the frame body 54, a pair of idler sheaves 51 are rotatably supported, and the traction member 27 is The idler sheave 51 is routed on the upper side of the outer peripheral surface. In addition, a flange 55 is formed above the rotary claw 49 so as to cover the rotary claw 49 at the upper part of the central portion of the frame 54, and between the lower surface of the flange 55 and the rotary claw 49. A pressing coil spring 53 is provided. This pressure coil spring 53
Is configured to press the rotary claw 49 downward against the frame 54 to engage with the teeth of the rack 42. On the other hand,
The frame 54 is further provided with a pressing roller 52 located between the idler sheaves 51. More specifically,
A leg portion 60 is formed at a lower portion of a central portion of the frame body 54 so as to vertically extend downward, and a long-hole-shaped moving bearing portion 56 is formed on the leg portion 60 along the hanging direction. . Further, in the pressing roller 52, the support shaft 52a has the moving bearing portion 56a.
It is inserted into the side surface of the rotary claw 49 after being loosely inserted therein, and is movably arranged along the moving bearing portion 56 between the frame 54 and the rotary claw 49. Further, the pulling member 27 via the idler sheave 51 is wound around the pressing roller 52 from below the outer peripheral surface thereof.

Therefore, when the rotary claw 49 is parallel to the frame body 54, the position of the pressing roller 52 is above the support shaft 52a in the upper part of the moving bearing portion 56, and conversely, the rotary claw 49a. When is tilted downward with respect to the pivot shaft 50 with respect to the frame 54, the position of the pressing roller 52 is downward with the support shaft 52a thereof being located in the lower portion of the moving bearing portion 56.

The tension of the pulling member 27 is applied to the pressing roller 52 from the lower side, and the biasing force of the pressing coil spring 53 is applied to the rotating claw.
It is designed to be added from above via 49. In the present embodiment, the structure of the rotary claw 49 is configured such that two claw members 57 whose one end is gradually bent in opposite directions are integrally coupled at the other end. By supporting the support shaft 52a of the pressure roller 52 between the ends, the support rigidity of the pressure roller 52 is improved. Further, a plate body is passed over the back surface of the claw member 57 and is used as a spring receiver 58 for the pressing coil spring 53. The spring receiver 58 also strengthens the structure of the claw member 57.

Next, the operation will be described. The pressing roller 52 is located in the middle between the idler sheaves 51 and continuously pushes the pressing roller 52 downward from above the traction member 27 by the urging force of the pressing coil spring 53. Since a tension for pulling the traveling carriage 21 is applied, the tension is always kept constant, and the pressing roller is acted by a tension stronger than the biasing force of the pressing coil spring 53.
52 is located above. Therefore, the rotary claw 49 is maintained at a position approximately parallel to the frame body 54. In such a traveling state, if the pulling member 27 loses tension for some reason, the force that pushes up the pressing roller 52 is immediately lost, and the rotating claw 49 is rotationally driven downward by the pressing coil spring 53 to move to the rack 42. Since the vehicle is locked, the traveling carriage 21 can be braked.

Particularly, in the second embodiment, when the pulling member 27 is broken, the braking means is
When the rotary claw 49 is engaged with the rack 42 by the operation of 34, the engaging shock can be absorbed by the shock absorber 35, which elastically allows the rack 42 to move back and forth, by the tension coil spring 46. There is little impact. Also this buffer
Since the rack 42 is slightly moved when the braking means 34 is activated by providing the 35, it is possible to install a sensor for detecting this movement near the rack 42 to detect an abnormality from a remote location.

In the above embodiment, the truck is mounted on the rail 23 laid on the support beam 15.
20,20a, 21,21a are made to travel, and each movable roof 11,13 is mounted on this trolley 20,20a, 21,21a to obtain an opening / closing mechanism. Traveling trolley 2
As a means for running the 1,21a, a pulling member 27 such as a belt, a chain or a metal roll is wound around the rail 23, and the pulling member 27 is driven to pull the traveling carriages 21,21a. is doing. Therefore, compared to a self-propelled carriage in which an electric motor is attached to the traveling carriages 21 and 21a themselves, maintenance of the drive device becomes easier.

Even if the towing member 27 breaks, a safety device is incorporated to respond to an emergency situation, and since this safety device is configured by a mechanically simple mechanism, it is easy to find a failure of the safety device itself. And there are few failure factors.

<< Effect >> In short, according to the present invention, the traveling carriages 21 and 21a for moving the movable roofs 11 and 13 while supporting the movable roofs 11 and 13 are towed by the tow member 27 into which the driving force of the driving means 26 is introduced as tension. It is driven by being driven and runs on the rail 23 on the support beam 15. In the traveling carriages 21 and 21a towed and driven in this manner, if the tension acting on the tow member 27 is lost due to, for example, disconnection of the tow member 27, the vehicle becomes uncontrollable and is in an emergency state. Will fall into.
In the first aspect of the present invention, the traveling carriages 21 and 21a are mainly
The sheave 41 around which the tow member 27 is wound and rotated so as to convert the tension thereof into a rotational driving force, and the sheave 41 includes gear trains 33, 36, 3
A traveling mechanism 21d including an axle 31 that is connected and rotated via 7,38 and a wheel 21f that is attached to the axle 31 and rotates on the rail 23, and the traveling carriage 21, Since the axle 31 and the sheave 41 of 21a are provided with a worm gear 39 whose rotation axis is orthogonal to the axle 31 in order to prevent the axle 31 from freely rotating, the traction member
The free rotation of the axle 31, which may occur when the tension of 27 is lost, specifically the free running of the wheels 21f, can be prevented by the worm gear 39 whose rotation axis is orthogonal to the axle 31. The safety of the roof 1 can be secured.

Further, in the second invention, the support beam 15 and the traveling carriages 21, 2
Loss of tension of the traction member 27 between 1a and the traveling carriage 21,21a
Since the braking means 34 for engaging the supporting beam 15 with the supporting beam 15 is provided, the traveling carriages 21, 2 are moved by the braking means 34 in such an emergency.
1a can be forcibly stopped against the support beam 15,
The safety of the retractable roof 1 can be ensured as in the first aspect of the invention.

[Brief description of drawings]

FIG. 1 is a perspective view showing the entire openable roof, FIG. 2 is a side view illustrating the movable roof and a towing mechanism, and FIG. 3 is a perspective view showing a first embodiment of the present invention. FIG. 4 is a side view thereof, FIG. 5 is a perspective view showing a second embodiment, FIG. 6 is a side view thereof, and FIG. 7 is an enlarged exploded perspective view of its essential parts. 1 ... Retractable roof, 9 ... Fixed roof 11,13 ... Movable roof, 15 ... Support beams 19 ... Opening 21,21a ... Traveling carriage 21d ... Traveling mechanism, 21f ... Wheels 23 ... Rails, 26 ... Drive wheels 27 ... Traction Member, 31 ... Axle 34 ... Braking means 33, 36, 37, 38 ... Gear train 39 ... Worm gear, 41 ... Connecting sheave 42 ... Rack, 49 ... Rotating claw 52 ... Pressing roller, 53 ... Pressing coil spring

Claims (3)

[Claims] 1. Movable roofs 11 and 13 movably provided on the fixed roof 9 toward the opening 19 so as to openably and closably cover the opening 19 formed in the fixed roof 9, and the opening. Part 1
In the retractable roof 1 having a support beam 15 provided inside the movable guide roof 11 and 13 for guiding the movement of the movable roofs 11 and 13 to the opening 19, a rail 23 provided on the support beam 15 and the movable beam The traveling carriages 21 and 21a provided on the roofs 11 and 13 and traveling on the rails 23 while supporting the roofs 11 and 13 are arranged along the rails 23 via the traveling carriages 21 and 21a, and tension is applied. The traveling carriages 21, 21a are provided with a traction member 27 which is introduced to drive the traveling carriages 21 and 21a, and a driving means 26 which introduces tension into the towing member 27 to pull the traveling carriages 21 and 21a. A sheave 41 that is wound and rotated to convert the tension into a rotational driving force.
And an axle 31 that is connected to the sheave 41 via gear trains 33, 36, 37, 38 and is rotated, and a wheel 21f that is attached to the axle 31 and rotationally travels on the rail 23. Mechanism 2
1d, and between the axle 31 and the sheave 41, the rotation shaft is provided between the axle 31 and the sheave 41 to prevent the axle 31 from freely rotating.
A safety device for a retractable roof characterized by comprising a worm gear 39 disposed orthogonal to 31. 2. Movable roofs 11 and 13 movably provided on the fixed roof 9 toward the opening 19 so as to openably and closably cover the opening 19 formed in the fixed roof 9, and the opening. Part 1
In the retractable roof 1 having a support beam 15 provided inside the movable guide roof 11 and 13 for guiding the movement of the movable roofs 11 and 13 to the opening 19, a rail 23 provided on the support beam 15 and the movable beam The traveling carriages 21 and 21a provided on the roofs 11 and 13 and traveling on the rails 23 while supporting the roofs 11 and 13 are arranged along the rails 23 via the traveling carriages 21 and 21a, and tension is applied. Between the traction member 27 that is introduced to drive the traveling carriages 21 and 21a, the driving means 26 that introduces tension to the traction member 27 and pulls, and between the support beam 15 and the traveling carriages 21 and 21a. Is provided,
A safety device for a retractable roof, comprising: braking means 34 for engaging the traveling carriages 21, 21a with the support beam 15 when the tension of the towing member 27 is lost. 3. The braking means 34 is provided along the longitudinal direction of the support beam 15 and the operating members 49, 52, 53 provided on the traveling carriages 21, 21a and operated by the loss of tension of the pulling member 27. And a rack 42 provided with the operating members 49, 52, 53 engaged therewith, and the operating members 49, 52, 53 are rotatably supported by the traveling carriages 21, 21a facing the rack 42. Claw body 49, spring means 53 provided between the claw body 49 and the traveling carriages 21 and 21a for urging the pawl body 49 toward the rack 42, and the traveling carriages 21 and 2
A holding member 52 for holding the claw body 49 in a direction to separate it from the rack 42 against the spring means 53 by the tension introduced to the pulling member 27 routed via 1a. The safety device for a retractable roof according to the second item of the above.