JPH054540Y2 - - Google Patents

Description

[Detailed description of the invention] a. Purpose of the invention (industrial field of application) The high window opening/closing device according to this invention is a high window opening/closing device that is installed in the upper part of a wall and is used as a smoke exhaust window. The present invention is intended to prevent the cables constituting such an opening/closing device from being rubbed by the upper stile of the window sash.

(Prior Art) Smoke exhaust windows are provided on the upper walls of buildings and various stores for ventilation during normal times and for exhausting smoke in the event of a fire.

Since the high windows used as such smoke exhaust windows are installed on the upper part of the wall that is hard to reach, an opening/closing means is required to open and close the windows from within easy reach.

A means for opening and closing such a high window will be briefly explained with reference to FIG. 1 showing an embodiment of the present invention.

A high window that is opened and closed by an opening/closing device, which is the object of the present invention, has a window frame 1 fixed inside a window opening provided at a high place such as the upper part of a wall, and a window shogi installed inside this window frame 1. 2's lower frame 3 and the lower frame 4 of the window frame 1 above.
It is constructed by swingably connecting the two.

One end of the cable 7 is connected to a cable take-in/take-out means 8, which is provided at a position that can be operated manually, such as in the middle of the wall, and which takes the cable 7 in and out of the case 6 by rotating the handle 5.

Further, a first pulley 11 is attached to a first bracket 10 fixed to the lower surface of the upper frame 9 forming the upper side of the window frame 1.
A second pulley 14 is attached to a second bracket 13 fixed to the upper surface of the upper stile 12 forming the upper side of the window shoji 2.
are supported so that they can freely swing around their horizontal axes.

As mentioned above, the intermediate part of the cable 7, whose one end is connected to the cable insertion/removal means 8, is stretched over the first pulley 11, second pulleys 14, 14 in order from the side of the said insertion/removal means, and The other end of the cable 7 is connected to a connecting piece 27 fixed to the upper frame 9.

When closing the high window, operate the handle 5 of the cable in/out means 8 to close the cable 7
is rolled into the case 6, and the first and second pulleys 1
If the total length of the cable 7 existing between 1 and 14 is shortened, the window shoji 2 will absorb its own weight or the damper 15,
It rotates upward around the pivot between the lower stile 3 and the lower frame 4 against the elasticity of the window frame 15, and closes the inner opening of the window frame 1.

To open the high window during normal times, operate the handle 5 in the opposite direction, feed out the cable 7 from the case 6, and remove the entire length of the cable 7 between the first and second pulleys 11 and 14. Lengthen. This allows the window shoji 2 to absorb its own weight or the damper 15,
Due to the elasticity of the window frame 15, it rotates downward around the pivot between the lower stile 3 and the lower frame 4, and opens the inner opening of the window frame 1.

If you need to open the high window in an emergency such as when a fire breaks out, press the push button 28 on the front of the case 6.
A stopper holding the cable 7 in the case 6 is removed, the cable 7 is quickly sent out from the case 6, and the window sash 2 is quickly rotated in the opening direction.

(Problems to be Solved by the Invention) However, in the high window opening/closing device constructed and operated as described above, conventional inconveniences have occurred as described below.

That is, the second pulley 14 supported by the second bracket 13 on the upper surface of the upper stile 12 that constitutes the upper side of the window shoji 2 is mounted between the upper surface of the upper stile 12 and the lower surface of the upper frame 9 when the high window is closed. It must be mounted at a position that can be accommodated within the gap that exists in the bracket 13, and the swing angle around the horizontal axis provided between it and the second bracket 13 is also limited.

Therefore, in order to prevent the cable 7 from coming off the groove 20 of the second pulley 14 even when the window shoji 2 is wide open, it is necessary to It had to be configured so that it would come into sliding contact with the edge of the upper stile 12.

If the cable 7 that is pushed and pulled during the opening and closing work of the high window comes into sliding contact with the edge of the upper stile 12, the edge of the upper stile 12, which is made of relatively soft aluminum material, may wear out. Otherwise, the cable 7 may break after a long period of time, which is not preferable.

In order to eliminate this kind of inconvenience, the special public
Publication No. 21077 discloses that a guiding member made of synthetic resin having lubricating properties is provided at the edge of the upper stile 12 where the cable 7 comes into sliding contact. Because of misalignment or wear of the guide member, it was not always possible to obtain a reliable effect.

The high window opening/closing device of the present invention solves the above-mentioned inconveniences.

b. Structure of the invention (means for solving the problem) The high window in which the opening/closing device of the present invention is installed is similar to the high window in which the conventional opening/closing device described above is installed. The window frame is fixed, and the lower frame of the window shoji installed inside the window frame is swingably connected to the lower frame of the window frame.

In order to open and close such a high window, the middle part of the cable, one end of which is connected to the cable insertion/removal means provided at a freely operable position, is attached to the horizontal axis provided on the first bracket fixed to the lower surface of the upper frame of the window frame. This cable is passed between a first pulley that can swing freely around the center and a second pulley that can swing around a horizontal axis that is installed on a second bracket fixed to the upper surface of the upper stile of the window shoji. The other end is connected to the upper frame.

Furthermore, in the high window opening/closing device of the present invention, of the first and second flanges that constitute the second pulley and sandwich the groove for passing the cable, the second flanges facing the upper surface of the upper stile are provided. The flange is formed to have a larger diameter than the first flange, and the outer peripheral edge of the second flange is located near the edge of the upper frame located on the tension side of the cable. .

(Function) When the high window opening/closing device of the present invention configured as described above opens and closes the window sash installed inside the window frame, the cable insertion/removal means is used in the same manner as the conventional opening/closing device described above. The amount of cable extension is adjusted to swing the window shoji around its lower stile.

Based on the adjustment of the amount of cable feeding out, the cable circulates within the grooves of both the first and second pulleys, and is then passed over the second pulley provided on the top surface of the upper stile that forms the top side of the window sash. The cable circulating in the groove of this second pulley is guided by a large-diameter second flange that partitions one side of this groove, and does not come into sliding contact with the edge of the upper stile.

(Example) Next, the present invention will be explained in more detail while explaining the illustrated embodiment.

1 to 4 show an embodiment of the present invention, and FIG. 1 is a perspective view showing the overall configuration of a high window opening/closing device;
Fig. 2 shows the window shoji in a closed state, and Fig. 3 shows the same in an open state. A view taken along line A-A in Fig. 1, and Fig. 4 a bottom view of the first pulley provided on the lower surface of the upper frame. It is.

The high window that is opened and closed by the opening and closing device of the present invention is opened and closed by swingably connecting the lower stile 3 of the window shoji 2 built inside the window frame 1 and the lower frame 4 of the window frame 1. A cable insertion/removal means 8 for driving the cable 7 for opening/closing the high window is provided at a position that can be operated manually, such as in the middle of the wall, and by rotating the handle 5. The cable 7 can be freely inserted and removed from the case 6.

A first pulley 11 is attached to a first bracket 10 fixed to the lower surface of the upper frame 9 forming the upper side of the window frame 1, and a first pulley 11 is attached to a second bracket 13 fixed to the upper surface of the upper frame 12 forming the upper side of the window shoji 2. supports the second pulley 14 so that it can swing freely about its horizontal axis.

That is, taking the first pulley 11 as an example, as shown in FIG. 4, hanging walls 17,
17, and the center of the first pulley 11 is pivotally supported on a support piece 19 that is swingably supported on a horizontal shaft 18 that spans both hanging walls 17, 17. Further, the second pulley 14 provided on the upper surface of the upper stile 12 constituting the upper side of the window shoji 2 is similarly supported to swing freely about the horizontal axis, although detailed illustrations and explanations are omitted. ing.

However, the first and second flanges 2 that constitute the second pulley 14 and sandwich the groove 20 over which the cable 7 is routed
1 and 22, the second flange 22 facing the upper surface of the upper stile 12 is formed to have a larger diameter than the first flange 21, and the outer peripheral edge of the second flange 22 is connected to the cable. 7
It is located near the edge 23 of the upper stile 12 located on the tension side (right side in FIG. 2, upper side in FIG. 3).

In this way, the outer peripheral edge portion of the second flange 22 located near the edge 23 of the upper stile 12 is gently curved, so that when the window shoji 2 is opened as shown in FIG. This prevents excessive force from being applied to the cable 7 that slides into contact with the outer peripheral edge.

Furthermore, in the illustrated embodiment, the large-diameter second flange 22 is divided into two in the thickness direction to form an inner half 24 that is integral with the first flange 21, and an inner half 24 that is integral with the first flange 21.
The outer half piece 25 is separate from the inner half piece 25, and bearings 26, 26 are interposed between the inner and outer half pieces 24, 25, so that the inner half piece 24 is integrated with the first flange part 21.
However, it is designed so that it can be rotated with light force.

As mentioned above, the intermediate portion of the cable 7, whose one end is connected to the cable insertion/removal means 8, is wrapped around the first pulley 11 and second pulleys 14, 14 in order from the side of the cable insertion/removal means 8, and further The other end of this cable 7 is connected to a coupling piece 27 provided on the upper frame 9.

When closing a high window using the opening/closing device of the present invention configured as described above, by operating the handle 5 of the cable take-in/take-out means 8, the cable 7 is wound into the case 6 and the first and second pulleys 11 are closed. ，
The total length of the cable 7 existing between the cables 14 and 14 is shortened.

When the total length of the cable 7 existing between the first and second pulleys 11 and 14 is reduced, the window shoji 2 resists its own weight or the elasticity of the damper 15, and the lower stile 3 and the lower frame 4 The inner opening of the window frame 1 is closed by rotating upward about the pivot point of the window frame 1.

When opening the high window, the handle 5 is operated in the opposite direction, the cable 7 is sent out from the case 6, and the total length of the cable 7 existing between the first and second pulleys 11 and 14 is lengthened. As a result, the window shoji 2 rotates downward around the pivot between the lower stile 3 and the lower frame 4 due to its own weight or the elasticity of the dampers 15, 15, thereby opening the inner opening of the window frame 1.

In this way, when the window shoji 2 constituting the high window is swung to open and close the high window, the cable 7 is moved between the first and second pulleys 11 and 14 based on the adjustment of the amount of extension of the cable 7. It circulates in the groove, but first,
Since both second pulleys 11 and 14 swing around the horizontal axis according to the opening angle of the window shoji 2, the cable 7 does not come off from the groove of each pulley 11 and 14, and the circulation of the cable 7 is prevented. It is done smoothly.

When the window shoji 2 rotates greatly in the opening direction, the cable 7
Although the direction of extension does not match as shown in FIG. 3, it is stretched between the first pulley 11 and the second pulley 14, and the groove 20
The cable 7 circulating therein is guided by a large-diameter second collar 22 that partitions one side of this groove 20 and is stretched between it and the first pulley 11 . Therefore, the cable 7 does not come into sliding contact with the edge 23 of the upper stile 12 provided with the second pulley 14.

Cable 7 when window shoji 2 is wide open
The inner half 2 of the second pulley 14 is in sliding contact with the inner half 2 of the second pulley 14.
4 is configured so that it can be rotated with a light force by the bearings 26, 26, so even when the window shoji 2 swings greatly in the opening direction, the second pulley 14 rotates smoothly. .

c. Effects of the invention The high window opening/closing device of the present invention is configured and operates as described above, so that the cable for driving the window sash that makes up the high window and the edge of the upper stile that makes up the upper side of the window sash It is possible to completely prevent sliding contact between the
Breakage of cables and upper frames can be effectively prevented, and the condition of the drive device can be maintained in good condition for a long period of time.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention, and FIG. 1 is a perspective view showing the overall configuration of a high window opening/closing device;
Fig. 2 shows the window shoji in a closed state, and Fig. 3 shows the same in an open state. A view taken along line A-A in Fig. 1, and Fig. 4 a bottom view of the first pulley provided on the lower surface of the upper frame. It is. 1...Window frame, 2...Window shoji, 3...Lower stile, 4...
...Lower frame, 5...Handle, 6...Case, 7...
Cable, 8... Cable entry/exit means, 9...
Upper frame, 10...first bracket, 11...first pulley, 12...upper stile, 13...second bracket, 14...second pulley, 15...damper,
16... Board part, 17... Hanging wall, 18... Horizontal shaft, 19... Support piece, 20... Groove, 21... First flange, 22... Second flange, 23... edge, 2
4...Inner half piece, 25...Outer half piece, 26...Bearing, 27...Connecting piece, 28...Push button.

Claims (1)

[Scope of utility model registration request] The lower stile of the window shoji installed inside the window frame fixed inside the window opening set at a high place is swingably connected to the lower frame of the window frame, and the cable is placed in and out at a position that can be operated freely. The intermediate part of the cable, one end of which is connected to the means, is connected to a first pulley that is swingable about a horizontal axis provided on a first bracket fixed to the lower surface of the upper frame of the window frame, and to the upper surface of the upper stile of the window sash. In a high window opening/closing device, the cable is connected to a second pulley that is swingable about a horizontal axis provided on a fixed second bracket, and the other end of the cable is connected to the upper frame. Of the first and second flanges that constitute the second pulley and sandwich the cable-crossing groove, the second flanges facing the upper surface of the upper stile have a diameter larger than that of the first flanges. An opening/closing device for a high window, characterized in that the outer peripheral edge of the second flange is located near the edge of the upper stile located on the tension side of the cable.