JPH074819Y2 - Opening / closing device for smoke exhaust window - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field of the Invention The present invention is arranged at a high place of a building and always locked in a closed window state. When a fire occurs, the lock is released and the window is opened by spring elasticity. , A smoke exhaust window designed to exhaust smoke filled indoors.

Problems to be solved by the conventional technology and device A smoke exhaust window is generally attached to a window frame arranged at a high place of a building by attaching a window plate biased in the opening direction by spring elasticity to the window plate. Engage the protruding hooking piece with the movable pawl of the closing device attached to the window frame to hold it in the closed window posture, and hang the window-opening strip to operate the movable pawl in the direction away from the hooking piece to the operating position. In the case of a fire, a fenestration strip is stretched to open a window, and it does not open and close as often as a normal window. Attention
When the window is once opened, the window plate is hooked with a hook bar or the like to close the window, and the hooking piece is engaged with the movable claw of the closing device. However, if the opening of the window is too large, the window cannot be closed. Therefore, the opening may be limited and the smoke exhausting function may not be fully exhibited.

Means for Solving the Problems As a means for solving such problems, the present invention provides a drum for winding a flexible strip connected to a window plate on a window frame, and a rotary drive for rotating the drum. A wheel and a one-way clutch that cuts off the transmission of the rotational force from the drum side to the rotating wheel are provided, and the window sill wound around the rotating wheel is hung down to the operating position.

Advantageous Effects and Effects of the Invention The smoke exhaust window opening and closing device of the present invention has the following effects and advantages due to the above-described configuration.

When the window plate is in the open window state, pulling the window closing strip in the operating position to rotate the rotating wheel causes the drum to rotate and wind the flexible strip to close the window plate, and the hooking piece. Is locked in the window-closed state by engaging the movable claw of the closing device, the window-closing operation can be performed extremely easily and safely.

When the window plate is in the closed state, pull the window opening strip in the operating position and release the movable claw from the locking piece to open the window plate due to the spring elasticity, and in the event of a fire, smoke filled indoors Can be discharged. At this time, the flexible strip whose one end is connected to the window plate is fed from the drum to rotate the drum, but the one-way clutch prevents the rotating wheel from rotating and the window strip in the operating position does not move. Do not injure yourself or scratch the wall.

It can be used for purposes other than when there is a fire, such as ventilation because it can be easily operated to close and open windows.

Since the drum, the rotating wheel, and the one-way clutch are installed in the window frame, they can be integrated into a unit, and in this case, they can be easily attached to the window frame.

At the operating position, only the fenestration strip and the fenestration strip hang down,
It is possible to effectively use the indoor space without installing an operation box or the like.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

The smoke exhaust window in this embodiment is a window frame 2 fixed to a high place near the ceiling of a wall surface of a building, and a window plate 4 by a hinge 3 at its lower edge.
While freely swinging to the outdoor side, the lower end of the window frame 2 and the upper part of the window plate 4 respectively support both ends of the telescopic stay 5 having a biasing force in the extension direction due to the elastic force of the spring. By connecting the window plates 4 by the shafts 6 and 7, the upper edge side of the window plate 4 is urged in the direction of opening and opening the window plate, and the plate is placed at the center position of the upper edge frame 4a of the window plate 4. Shaped hook
10 is attached so as to project indoors, and a closing device 12 is attached to the upper edge frame 2a of the window frame 2 at a position corresponding to the hooking piece 10, and when the window plate 4 is closed, The stop piece 10 enters between the support body 15 fixed therein through the opening 14 of the mounting box 13 of the closing device 12 and the movable body 16 supported by the support shaft 17 corresponding to the support body 15. , Is clamped by the elastic force of the tension coil spring 18,
When a force in the pulling direction is applied to 10, the claw portion 19 of the movable body 16 bites into the hooking piece 10, and this acts as a stopper for the pulling out of the hooking piece 10 and the window plate 4 is locked in the closed state. In addition, the window opening wire 20 whose one end is connected to the movable body 16 is routed along the upper edge frame 2a and the side edge frame 2b of the window frame 2 via the turning pulley 21. The other end (not shown) is located at a reachable height indoors, and the other end is pulled against the elastic force of the tension coil spring 18, so that the movable body 16 moves the claw portion 19 thereof. The locking piece 10 which has been unlocked by being rotated so as to be removed from the locking piece 10 escapes from the closing device 12 by the urging force of the telescopic stay 5, and the window plate 4 is opened. A window closing wire 25, one end of which is connected to the upper edge frame 4a of the window plate 4, is stretched between the window 2 and the window plate 4, and the other end side is a closing device 12 It is routed along the upper edge frame 2a of the window frame 2 via the turning pulley 26 attached to the lower surface, and is connected to the window closing drive device 28 attached to one end of the upper edge frame 2a. There is.

This window closing drive device 28 has a support case 30 fixed to the inside of the window frame 2 by a bracket 29 and the other end of a window opening wire 25 guided from an opening 31 on the side thereof being wound. The drum 33 is rotatably supported, and a rotating wheel 37 is housed in a housing case 36 fixed to the window frame 2 and has a winding drum 33.
A ball chain 38 which is concentrically and rotatably supported and which is formed by connecting a large number of spheres 39 in a beaded shape is wound around the outer periphery of the rotary wheel 37 so as to engage the spheres 39, and a storage case 36 is formed. It hangs downward from the open lower surface along the side edge frame 2b of the window frame 2, and the lower end (not shown) is located at a height that can be reached, and this ball chain 38 is pulled and circulated. Therefore, the rotating wheel 37 is adapted to rotate, and further, the rotating force from the rotating wheel 37 to the winding drum 33 is transmitted between the rotating wheel 37 and the winding drum 33, and A one-way clutch 40 that blocks transmission of rotational force from the drum 33 to the rotating wheel 37 is provided.

This one-way clutch 40, as shown in FIG.
A serration shaft portion 42 formed at one end of 41 is fitted in a serration hole 37a formed in the rotary wheel 37, and a hexagonal shaft portion 44 formed at the other end of a driven shaft 43 concentric with the drive shaft 41.
The rotary wheel 37 and the take-up drum 33 are connected to each other by being fitted in the hexagonal hole 45 formed in the take-up drum 33, and the rotary wheel 37 is rotated in one direction. , Drive shaft
In the cylindrical body 46 fixed in the accommodating case 36, 41 is rotated in the clockwise direction in FIG. 6 while being aligned with the clutch plate 50 that rotatably supports the circular portion 49 of the driven shaft 43 in the central hole 48. In such a case, as shown in FIG. 7, the pressing portion 52 protruding from the drive shaft 41 has the compression coil spring in the recess 53 of the clutch plate 50.
While the 54 is elastically contracted, three inward slopes 55 formed in the drive shaft 41 in the circumferential direction form an arc shape projecting in the circumferential direction on the clutch plate 50 between the driven shaft 43 and the outer peripheral surface. Three projecting walls
By sandwiching three cylindrical floating bodies 58 sandwiched between 57, the drive shaft 41, the clutch plate 50, and the driven shaft 43 are integrated, and the elastic ring 59 locked to the clutch plate 50 and the cylinder. The winding drum 33 is rotated in the clockwise direction in FIG. 7 against the frictional force with the body 46 so that the winding drum 33 rotates in the direction in which the window closing wire 25 is wound. When the driven shaft 43 rotates along with the rotation of 33, as shown in FIG. 6, the pressing portion 52 of the drive shaft 41 is compressed by the compression coil spring 54.
The floating body 58 is pushed back by the elastic force of the
Since the idle shaft 55 idles between the driven shaft 43 and the driven shaft 43, the driven shaft 43 only idles in the clutch plate 50, and the drive shaft 41 and the rotary wheel 37 do not rotate.

This embodiment has the above-mentioned configuration, and when closing the opened window, pulling the lower end portion of the ball chain 38 hanging toward the indoor side and rotating the rotating wheel 37 causes the rotational force to be increased. It is transmitted to the wind-up drum 33 via the one-way clutch 40, and the wind-up drum 33 rotates to wind up the window closing wire 25, which causes the window plate 4 tilted to the outdoor side to be caused to open. Becomes smaller, the window plate 4 is completely closed, and the locking piece 10 is engaged with the closing device 12 of the window frame 2 to be locked in the closed window state. When smoke is exhausted in the event of a fire or ventilation is performed in normal times, the window opening wire 20 is stretched to release the locking of the closing device 12, and the window plate 4 is opened by the urging force of the telescopic stay 5. Along with this, the window closing wire 25 whose one end is connected to the window plate 4 has the winding drum 33. Et al. The fed by the take-up drum
Although 33 rotates, rotating wheel 37 is one-way clutch 40.
Because it does not rotate due to the operation of the rotating wheel 37, it rotates with the rotating wheel 37 at a height that the ball chain 38 can reach at a high speed and circulates at high speed to injure people or damage the wall surface. Never.

In this embodiment, the window closing drive device 28, the winding drum 33 of the window closing drive device 28, the rotating wheel 37 and the one-way clutch are arranged.
Although the 40 is attached separately from the window frame 2 to the outdoor side, instead of this, the winding drum 33, the one-way clutch 40 and the rotating wheel 37 may be integrated into a unit. The unitized structure has an advantage that it can be easily attached to the window frame 2.

Further, as another embodiment, when applied to a continuous window having a plurality of windows arranged side by side, a single window closing wire 25 is provided between the window frame 2 and the window plate 4 of each window. The cables are installed while being sequentially stretched through the
By adopting a configuration in which the windows are connected, it is not necessary to perform the window closing operation for each window, and all the windows can be closed at the same time by a single operation.

The present invention provides a window frame 2 as described in the above embodiment.
Not only the outward tilting swing open / close window in which the window plate 4 supported on one side is tilted to the outdoor side to open the window, but the window plate is moved vertically along the window frame in a vertical posture. Therefore, it can also be applied to a window that is opened and closed.

[Brief description of drawings]

FIG. 1 is a side sectional view, FIG. 2 is a plan sectional view, FIG. 3 is an enlarged plan sectional view of a window driving device, and FIG. 4 is a one-way clutch. FIG. 5 is a partially cutaway exploded perspective view, and FIG. 5 and FIG. 6 are a sectional view of the free state of the one-way clutch and a sectional view of its operating state, respectively. 2: Window frame, 4: Window plate, 5: Telescopic stay, 10: Engagement piece, 12: Closing device, 16: Movable body, 19: Claw part, 20: Wire for window opening (window opening strip), 25: Window closing wire (flexible strip), 28: Window closing drive device,
33: Take-up drum, 37: Rotating wheel, 38: Ball chain (closed window strip), 40: Unidirectional clutch

Claims (1)

[Scope of utility model registration request] 1. A window frame placed at a high place in a building is fitted with a window plate which is urged in the window opening direction by spring elasticity, and a hooking piece projecting from the window plate is attached to the window frame for closing. In a smoke exhaust window in which a movable window is held in a closed window position by engaging with a movable window, and a window opening strip for operating the movable window in a direction in which the movable window is disengaged is hung down to an operation position. A drum that winds a flexible strip connected to the window plate, a rotating wheel that rotationally drives the drum, and a one-way clutch that blocks transmission of rotational force from the drum side to the rotating wheel are provided. An opening / closing device for a smoke exhaust window, characterized in that a window-closing strip wound around the rotating wheel is hung down to an operating position.