JP2604940Y2 - Movable screen device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable screen device provided for forming a smoke-proof section on a ceiling of a building or the like.

[0002]

2. Description of the Related Art
Among such movable screen devices, there is a ceiling storage type device that automatically lowers a screen stored on the ceiling based on detection of an emergency such as a fire, and in such a device, A movable rail that moves down as the screen descends is provided.

The movable rail has a base end pivotally supported on the ceiling side and a regulation member provided on the distal end side for sliding (rolling) on the upper surface of the seat plate provided at the lowermost end of the screen. It is provided, and when moving the screen down, not only the movable rail is restricted so as not to be in a hanging posture in advance, and the screen can be rolled up together with the movable rail, but this movable rail is In the state of hanging from the ceiling, the screen is hung vertically or close to the ceiling from the ceiling surface, and when the screen is rolled up in this state, the seat plate in contact with the regulating member will push the regulating member upward. However, there is no force component for swinging the movable rail, and as a result, there is a problem that the swing start of the movable rail in the hanging posture is not performed smoothly.

Accordingly, as shown in FIG. 4, an auxiliary member 10 having an inclined surface 10a is integrally attached to the upper surface of the seat plate 3,
When the screen 1 is raised, the inclined surface 10 a
It is proposed to secure a force component for swinging the movable rail 4 by contacting a roller (the regulating member) 5 provided on the side. However, since the movable rail 4 is in a position slightly before the hanging position,
Is released from contact with the upper surface of the seat plate 3, and the movable rail 4 swings under its own weight in a free state without contact support by the seat plate 3. When the kinetic speed is accelerated and the robot moves to the hanging position, it collides with the movable rail of the wall or the adjacent movable screen, and as a result,
There is a concern that the movable rail will be inverted and swung to the opposite side (inward in the left-right direction) due to the collision reaction force, and will be in a hanging posture deviated from the vertical direction, thereby impairing smoke prevention.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to provide a movable screen device which can eliminate these drawbacks in view of the above-mentioned circumstances. And a movable rail having a base end pivotally supported so as to swing from a horizontal position stored on the ceiling to a hanging position hanging from the ceiling. The movable rail, a seat plate contact member that abuts on the upper surface of the seat plate of the screen to change the movable rail to the hanging position halfway through the lowering of the screen, and that the base end portion is smaller than the seat plate contact member. An operating body is provided at the base end side of the rail and pivotally supported so as to be swingable, and the operating body is in a hanging posture state of the movable rail.
It is set so that it is inclined to the outside in the left-right direction from the support position of the operating body, and the lower end portion comes into contact with the stopper provided on the seat plate from the inside in the left-right direction at a position below the seat plate contact member. It is characterized by the following.

According to the present invention, with this configuration, it is possible to secure a force component for swinging the movable rail when the screen is raised, and to set the movable rail in a vertically hanging posture. It was done.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a smoke prevention screen wound around a winding shaft 2 formed in a ceiling, and a seat plate 3 is provided at a lower end portion of the screen 1. It is the same as in the prior art that the film is unwound based on the sensing signal from the means.

Reference numeral 4 denotes a movable rail.
The base end is swingably supported on the ceiling side so as to hang down under its own weight, and a guide 4a for loosely fitting the seat plate 3 is formed. 5) is rotatably supported. When the movable rail 4 is housed in the ceiling of the screen 1, the roller 5 is brought into contact with and supported by the upper surface 3 a of the seat plate 3 located at the position of the magsa, whereby the movable rail 4 is moved downward and is housed in the ceiling in a horizontal posture. I have. Then, when the screen 1 is gradually unwound from this state, the movable rail 4 is moved by the rollers 5 to the upper surface 3a of the seat plate.
While rolling down while being supported by the robot, it gradually moves down toward the hanging posture.

Reference numeral 6 denotes an operating body provided on the movable rail 4, which in this embodiment is constituted by a rod-shaped body. The operating body 6 has an upper end located closer to the base end than the roller 5. It is pivotally supported by the movable rail 4 in a state where it is located above, and is set so that the front end portion comes into contact with the upper surface 3a of the seat plate. When the screen 1 is retracted, the operating body 6 arranged so that the front end thereof is in the lateral position in which the front end faces outward in the left-right direction and abuts on the upper surface 3a of the seat plate, the front end of the upper surface 3a is lowered with the lowering of the screen 1. Is slid outward in the left-right direction, while the pivot portion swings and gradually rises, and the timing is substantially adjusted so that the screen 1 is lowered to the position where the roller 5 is separated from the upper surface 3a of the seat plate. Pedestal plate upper surface 3
The end portion a is reached, and the stopper 7 is configured to come into contact with the stopper 7 integrally provided at the end of the seat plate 3 so that further movement is restricted. When the screen 1 is further unwound in a state where the movement is restricted, the movable rail 4 moves down while being supported by the seat plate 3 via the operating body 6, but the seat plate 3 is moved to the lowermost end. The movable body 4 is moved until the movable rail 4 reaches a vertical posture and the downward movement is stopped.
Is set so as to continue swinging and stop swinging in a posture more erect than the standing posture. In this stopped state, the operating body 6 has the base end side (upper end side), which is the pivot shaft support, located inward in the left-right direction, and the distal end side (lower end side).
Is set to have an inclined posture positioned outward in the left-right direction. Further, the operating body 6 is set so as to restrict the operating body 6 from abutting on the outer peripheral surface of the roller 5 and swinging beyond the inclined posture when the operating body 6 is stopped. Incidentally, the swing of the operating body 6 may be restricted by providing the movable rail 4 with the restriction member 8 as in the second embodiment shown in FIG. 3A.

In the embodiment of the present invention constructed as described above, in the event of an emergency such as a fire, the screen 1 is unwound and hangs down from the ceiling, thereby forming a smoke-proofing compartment to quickly spread the smoke ( (Diffusion) can be effectively avoided, but when the screen 1 is rolled down, the movable rail 4
Moves downward gradually toward the hanging posture while rolling while the roller 5 provided at the tip end is supported by the upper surface 3a of the seat plate, but the movable rail 4 is further provided with an operating body 6. At approximately the same timing as the roller 5 is separated from the upper surface 3a of the seat plate, the distal end of the operating body 6 is brought into contact with the stopper 7 of the seat plate 3 to regulate the movement. Means that the movable rail 4 is connected to the seat plate 3
It will move down while being supported by. As a result, the movable rail 4 receives the support of the seat plate 3 until the movable rail 4 stops moving downward, so that the conventional support of the roller is released in the middle of the downward movement, and the movable rail 4 is freely movable. It is possible to reliably prevent the rail from stopping in a state shifted from the vertical direction.

Further, when the screen 1 is wound, the screen 1 is moved upward in a state where the tip of the operating body 6 is restricted from moving by the stopper 7. At this time, the operating body 6 , The swing shaft support is located inward in the left-right direction,
Since the distal end has an inclined posture positioned outward in the left-right direction, the force component of the upwardly moving seat plate 3 is dispersed not only directly above the distal end of the operating body 6 but also inward in the left-right direction. As a result, the movable rail 4 swings inward. As a result, while the operating body 6 swings the movable rail 4 in the hanging posture, the movable rail 4 is supported by the seat plate 3 after the support of the roller 3 by the movable plate 4 is released. be able to. Moreover, since the movable rail 4 is supported by the seat plate 3 by the operating body 6 even when the movable rail 4 is hung vertically and stopped in a downward movement, the operating body 6 can also be used as a holding member in the hanging posture. In addition, the number of components can be reduced by reducing the number of components, and the movable rail 4 can be held in the vertical direction as much as possible. Moreover, in this apparatus, since the movement of the operating body 6 beyond the inclined posture when the seat plate 3 is lowered to the lowermost position is restricted by the roller 5, the roller 5 is also used as a regulating member. This is convenient.

It should be noted that the present invention is not limited to the above-described embodiment, but, as in the third embodiment shown in FIG. 3B, between the operating body and the movable rail, or on the swinging shaft support of the operating body.
A resilient device 9 may be provided to urge the end of the operating body outward in the left-right direction, whereby the movable rail swings inward in the left-right direction during winding of the screen. Can be performed more smoothly.

[0013]

[Effects] In summary, since the present invention is constructed as described above, it is unwound in the event of an emergency such as a fire and is hung down from the ceiling, thereby forming a smoke-prevention compartment and quickly transmitting smoke. When winding and storing the screen to effectively avoid (spread), the movable rail in the hanging posture is also swung up and moved up, and stored.
The actuating body whose upper end is provided on the movable rail is supported in a state where the upper end is located inward in the left-right direction, and the lower end is restrained by the stopper of the seat plate in an inclined posture in which the tip is located outward in the left-right direction. Therefore, when the seat plate moves upward, the dispersing force component acts on the movable body not only directly above the distal end but also inward in the left and right direction. Can be swung.

When the screen is rolled down, the movable rail can receive the support from the seat plate via the operating body even if the support from the seat plate via the roller is released. Accordingly, the movable rail can receive the support of the seat plate until the movable rail stops moving downward, and the movable rail can be freely suspended and oscillated such that the conventional roller support is released during the downward movement and the movable rail swings freely. It does not stop in a state shifted from the vertical direction.

As described above, while the operating body is for providing a force component for swinging the movable rail at the time of storage, after the support of the movable rail to the seat plate by the roller is released, It can be supported by the seat plate, and can also be used as a holding member when the movable rail hangs down vertically and stops moving downward. As a result, the parts can be shared and the number of parts can be reduced. In addition, the movable rail can be held in the vertical direction as much as possible, so that the smoke resistance is not impaired.

[Brief description of the drawings]

FIG. 1 is an overall front view of a movable screen device.

FIG. 2 is an enlarged explanatory view of a main part showing an action of an operating body on a movable rail.

FIG. 3A is an enlarged front view of a main part showing a second embodiment, and FIG. 3B is an enlarged front view of a main part showing a third embodiment.

FIG. 4 is an enlarged explanatory view of a main part showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Screen 2 Winding shaft 3 Seat plate 3a Upper surface 4 Movable rail 4a Slot 5 Roller 6 Actuator 7 Stopper 8 Restriction member

Claims (1)

(57) [Scope of request for utility model registration] 1. A screen wound around a ceiling storage unit,
A movable screen, comprising a movable rail whose base end is pivotally supported so as to swing from a horizontal position stored on the ceiling to a drooping position hanging from the ceiling. A seat plate abutment member that contacts the upper surface of the seat plate to change the movable rail to the hanging position halfway down the screen and the base end is positioned closer to the rail base end than the seat plate abutment member An actuating body pivotally supported, the actuating body having a tilting posture facing outward in the left-right direction from the operating body pivoting position in a hanging posture of the movable rail, and a lower end portion having a seat plate; A movable screen device characterized in that the movable screen device is set so as to come into contact with a stopper provided on a seat plate at a position below a contact member from the inside in the left-right direction.