JPH0714596Y2 - Window opener - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window opening / closing device used for a smoke exhaust window or the like.

[0002]

2. Description of the Related Art Generally, in a smoke exhaust window, by rotating an upper end portion of a window main body outward by a predetermined angle,
It is designed to open the window frame opening. The reason why the upper end of the window body is rotated is that it is more advantageous to smoke emission than the case where the lower end of the window body is rotated outward.

By the way, a window opening / closing device is installed in the smoke exhaust window as described above, which is normally closed and opened in an emergency such as a fire. The window opening / closing device resists the urging force of the urging means by winding up the urging means for opening and rotating the window main body and the strip body hung between the window frame and the window main body. And a winder for closing and rotating.
The winder has a built-in lock mechanism, and when the window is closed, the strip is locked by the lock mechanism,
Hold the window body closed. On the other hand, when the lock of the winder is released in an emergency, the strip body is unwound from the winder and the window body is opened by the urging force of the urging means. When the window body is rotated by a predetermined angle, the strip is not extended any more, and the window body is held at the predetermined rotation angle.

[0004]

In the window opening / closing device described above, the rotation of the window is prevented by the line member. Therefore, in the unlikely event that the strip body is cut, the window body does not stop at the predetermined rotation position but continues to rotate under its own weight and collides with the wall portion located below the window. Then, the impact may break the connecting portion between the window frame and the window body, causing a serious accident that the window body falls from the window frame.

Therefore, the applicant first proposed a window opening / closing device capable of solving the above-mentioned problem (actual application 3
-4805). In the window opening / closing device according to the above proposal, the lower end portion of the window body is rotatably connected to the window frame so as to be vertically movable, and the intermediate portion of the window body is rotatably supported by the window frame. A connecting arm is provided so that the lower end portion of the window body is moved upward by the urging means for urging the window body upward, and the window body is rotated about the intermediate portion supported by the connecting arm. It was done.

According to the window opening / closing device according to the above-mentioned application,
Since the window body rotates about its middle portion, it does not rotate under its own weight. Therefore, it is possible to prevent a serious accident from occurring even if the line body is cut.

However, in the window opening / closing device according to the previous application, the window main body can be opened greatly probably because the resistance between the window main body and the window frame increases as the opening rotation amount of the window main body increases. There was a problem that it would be difficult.

The present invention has been made to solve the above-mentioned problems, and can prevent an accident in which the window body collides with the wall and falls even if the strip body is cut off. An object of the present invention is to provide a window opening / closing device that can easily open a main body to a large extent.

[0009]

In order to achieve the above-mentioned object, the present invention provides a window frame having an opening, and a window frame which is rotatably supported by the window frame and whose upper end portion is rotated outward. A window main body that opens the opening by means of the urging means, an urging means for opening and rotating the window main body, and a strip body whose one end is hung between the upper end of the window frame and the upper end of the window main body. And a winder that winds the other end of the window body to close and rotate the window body against the biasing force of the biasing means. And is rotatably connected to the window frame, and can be expanded and contracted within a predetermined range between the window frame and the window body, and one end of the window frame can be rotated to the upper end of the window frame. A connecting arm, the other end of which is rotatably connected to an intermediate portion in the vertical direction of the window body. At the same time, one end is rotatably connected to an intermediate portion between the connecting portion between the connecting arm and the window body and the connecting portion between the window body and the window frame, and the other end is connected to the window body. It is characterized in that a support arm connected to the window frame above the connection point with the window frame is provided.

[0010]

When the strip wound on the winder is unwound in a state where the window body closes the opening of the window frame, the window body is moved upward by its urging force of the urging means. , The upper end portion pivots around the support arm toward the outside. When the window body rotates, the connecting arm extends along with the rotation. When the strip is extended to the limit, the window body is prevented from rotating by the strip. At this time, when the strip body is cut, the window body further continues to rotate, but when the connecting arm extends to a predetermined range, the connecting arm prevents the rotating.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a view of a smoke exhaust window W in which the window opening / closing device of the present invention is installed, as seen from the room I (see FIG. 2) side. The smoke exhaust window W includes a window frame 1 and a window body 2. There is. The window frame 1 includes an upper frame 11, a lower frame 12, and left and right vertical frames 1.
3, 14 are formed in a horizontally long quadrangle, and a window hole 15 is formed in the center thereof. As shown in FIG. 2, an airtight rubber 16 is provided at the opening on the outdoor side of the window hole 15 over the entire circumference.

On the other hand, the window main body 2 is formed in a horizontally long rectangular frame shape by an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24, and the inner peripheral surface of the window main body 2 has a structure shown in FIG. As shown in, the window glass 25 is fixed via packing 26. The window body 2 is fitted into the window frame 1 from the outdoor O side, and the outer peripheral portion of the surface facing the indoor I side has the airtight rubber 16
The window hole 15 of the window frame 1 is closed by being pressed over the entire circumference.

The left and right lower end portions of the window body 2 are connected to the left and right lower end portions of the window frame 1 so as to be vertically movable and rotatable. That is, as shown in FIGS. 2 and 3, on the right vertical frame 14 of the window frame 1, two protrusions 41 and 42 extending upward from the lower end of the vertical frame 14 are formed in parallel with each other and spaced from each other. Has been done. On the other hand, the guide roll 4 is rotatably supported at the lower end of the right vertical frame 24 of the window body 2 via a support base 43 and a shaft 44. The diameter of the guide roll 4 is slightly smaller than the distance between the ridges 41 and 42, and is inserted between them. Similarly, the guide roll 4 is also arranged between the vertical frame 13 on the left side of the window frame 1 and the vertical frame 23 on the left side of the window body 2. As a result, the lower end of the window body 2 is connected to the window frame 1 so as to be vertically movable and rotatable.

Next, a window opening / closing device for rotating the window body 2 to open / close the opening 15 will be described. The window opening / closing device includes two support arms 3 and 3 and two gas dampers (biasing means). 5, 5 and the two connecting arms 6, 6 and the winder 7 are the main constituent elements.

The support arms 3 and 3 are provided between the window frame 1 and the window main body 2 and are arranged obliquely from the outdoor O side toward the indoor I side from the lower side toward the upper side. The lower end of one of the two support arms 3, 3 has a support base at the lower end of the vertical frame 24 on the right side of the window body 2 as is apparent from FIGS. 2, 4 and 7. It is rotatably connected via 31 and a shaft 32. The upper end portion of the support arm 3 has a vertical frame 14 on the right side of the window frame 1.
It is rotatably connected to a slightly lower side of the intermediate portion of the above through a support base 33 and a shaft 34. Similarly, the other connecting arm 3 is also rotatably connected to the left vertical frame 13 of the window frame 1 and the left vertical frame 23 of the window body 2.

As is well known, the gas dampers 5 and 5 are composed of a damper main body 51 and a rod 52 which is provided on the damper main body 51 so as to be movable back and forth and is urged to retract by the gas pressure inside. There is. Gas damper 5,5
As shown in FIGS. 1 and 2, are arranged along the left and right vertical frames 13 and 14 of the window frame 1 with the damper main body 51 positioned on the upper side. The upper end of the damper body 51 of the one gas damper 5 is attached to the vertical frame 13 via a bracket (not shown), and the lower end of the rod 52 is, as shown in FIG. Is attached to. Therefore, the gas damper 5 urges the window body 2 vertically upward. Similarly, the other gas damper 5 also urges the window body 2 vertically upward.

Here, the gas damper 5 urges the window body 2 vertically upward, and the support arm 3 inclines from the outdoor O side to the indoor I side as it goes from the lower side to the upper side. The connecting portion (shaft 32) between the main body 2 and the support arm 3 is located right above the roller 4 as seen from the side surface side, as is apparent from FIG. Therefore, when the gas dampers 5, 5 urge the lower end of the window body 2 upward, the window main body 2 moves the lower end of the window main body 2 upward, and the upper end of the window main body 2 is centered on the shaft 32 so as to face the outdoor O side. Rotate. At this time, it goes without saying that the support arm 3 also rotates to the outdoor O side.

The turning force of the gas damper 5 with respect to the window body 2 is large after the window body 2 is slightly rotated, but is small at the beginning of the rotation. Therefore, an auxiliary pressing member such as a spring that presses the upper end of the window main body 2 toward the outdoor O side is provided on the upper end of the window frame 1 only when the closed window main body 2 is opened. Good.

The winding device 7 is constructed in the same manner as a known one, and when the handle 71 is rotated in one direction, the strip 72 is wound up. Further, the winder 7 has a ratchet mechanism or the like for preventing the handle 71 from rotating in the other direction. When the stop function of the ratchet mechanism is released, the strip 72 can be drawn out.

As shown in FIG. 1, the distal end of the strip 72 extending from the winder 7 extends upward along the left vertical frame 13 and then turns in the roll 73 to the upper frame 11. Rollers provided along the right ends of the upper frame 11 and the upper frame 21 while being stretched along the rollers 74 and 75 provided at the left ends of the upper frame 11 and the upper frame 21, respectively. It is hung between 76 and 77, and the upper frame 1
It is fixed at 1. Therefore, when the strip 72 is taken up by the take-up device 7, the rollers 75 and 77 are
Move to 4,76 side. As a result, the window main body 2 is rotated and closed, but it abuts the window frame 1 to close the window hole 15. On the other hand, when the stop function of the winder 7 is released in the state where the window body 2 is closed, the strip 72 can be unrolled, and the window body 2 is opened and rotated by the urging force of the gas damper 5.

The strip 72 is extended as the window body 2 is rotated, but when it is extended until the angle formed by the window body 2 and the window frame 1 reaches a preset angle, it is further extended. Therefore, the window body 2 can be stopped from rotating.

The connecting arms 6 and 6 are arranged between the window frame 1 and the window body 2. That is, the connecting arm 6
As shown in FIG. 6, is composed of a first arm 6A and a second arm 6B.
A long hole 61 extending along the longitudinal direction is formed. A shaft 62 is movably inserted in the long hole 61, and one end of the second arm 6B is fixed to the shaft 62. Therefore, the connecting arm 6 can be expanded and contracted by the length of the long hole 61 minus the diameter of the shaft 62.

As shown in FIG. 5, the upper end of the first arm 6A of the one connecting arm 6 is rotatably attached to the upper end of the vertical frame 13 of the window frame 1 via the support base 63 and the shaft 64. It is installed. The lower end of the second arm 6B has a window main body 2
The vertical frame 23 is rotatably attached to the central portion of the vertical frame 23 via a shaft 65. Therefore, the window body 6 is the window body 2
When it is opened and rotated from the closed state, it rotates about the shaft 64 while expanding, and conversely, when the window main body 2 is closed and rotated, it rotates about the shaft 64 while shortening. In this respect, the other connecting arm 6 is also the same. In this embodiment, the connecting arm 6 is at the limit of being able to extend when the window main body 2 is prevented from opening and rotating by the strip 72, or is capable of extending slightly. .

In the window opening / closing device having the above structure, it is assumed that the window body 2 is now closing the opening of the window frame 1. In this state, when the stop function of the winder 7 is released, the strip 72 can be drawn out, so that the urging force of the gas damper 5 causes the window body 2 to move upward at the lower end portion thereof and to move with the support arm 3. It is opened and rotated about the shaft 32, which is a connection point. Then, when the window body 2 rotates to a predetermined angle, the strip 72 is no longer extended, so that the window body 2 stops rotating.

Since the connecting portion between the window body 2 and the support arm 3 is located on the lower end side of the central portion of the window body 2 in the vertical direction, the amount of upward movement of the lower end portion of the window body 2 is increased. At least the window body 2 can be largely opened and rotated. Therefore, the window body 2 can be smoothly rotated to a predetermined open rotation position. Further, since the amount of upward movement of the window body 2 is small, a small gas damper 5 can be used.

Further, when the strip 72 is cut, the connecting arm 6 blocks the rotation of the window body, so that the window body 2 collides with the wall and the accident such as dropping due to the impact is prevented. You can

The present invention is not limited to the above-described embodiments, but can be modified as appropriate without departing from the spirit of the invention. For example, in the above embodiment, the gas damper 5 is used as the biasing means, but a tension spring may be used instead.

[0028]

As described above, according to the window opening / closing device of the present invention, the lower end portion of the window body is connected to the window frame so as to be movable in the vertical direction, and the window body is provided between the window frame and the window body. Since the support arm that rotatably supports the window body and the expandable joint arm are provided, even if the strip of the winder is cut, the window body will not crash into the wall. Therefore, it is possible to prevent the accidental fall of the window body. Further, since the support arm is connected to the lower side of the central portion of the window body, the window body can be made large and can be opened smoothly. Further, since a small amount of upward movement of the window body is required, a small urging means such as a gas damper can be used, and even when the urging means is used, a small gas damper can be used. The effect that the degree of freedom in design such as the arrangement of windows can be widened and the aesthetics of the building can be improved can be obtained.

[Brief description of drawings]

FIG. 1 is a view of a smoke exhaust window, which is an embodiment of the present invention, viewed from the inside of a room.

FIG. 2 is an enlarged sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged sectional view taken along the line BB of FIG.

FIG. 4 is an enlarged cross-sectional view taken along the line CC of FIG.

5 is an enlarged cross-sectional view taken along the line DD of FIG.

6A and 6B are enlarged views in which a part of the connecting arm is omitted, and FIG. 6A is a plan view thereof and FIG. 6B is a side sectional view thereof.

FIG. 7 is a schematic configuration diagram showing a main configuration of a window opening / closing device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Window frame 15 Window hole 2 Window main body 3 Support arm 4 Guide roll 5 Gas damper (biasing means) 6 Connecting arm 7 Winder 72 Article

Claims (2)

[Scope of utility model registration request] 1. A window frame having an opening, a window main body rotatably supported by the window frame, and the upper end of the window main body being opened to open the opening, and the window main body being opened. The biasing means for moving the window body is wound up by winding the other end of the strip body whose one end is hung between the upper end of the window frame and the upper end of the window body. In a window opening / closing device including a winder for closing and rotating against the urging force of the window, a lower end portion of the window body is rotatably connected to the window frame in a vertically movable manner. , Between the window frame and the window body is expandable / contractible within a predetermined range, one end is rotatably connected to an upper end of the window frame, and the other end is an intermediate portion in the vertical direction of the window body. A connecting arm rotatably connected to the window body, and one end of the connecting arm connects to the window body. The connection part is rotatably connected to an intermediate part between the connection part of the window body and the window frame, and the other end is connected to the window frame above the connection part of the window body and the window frame. A window opening / closing device, which is provided with a support arm. 2. The window frame is formed in a horizontally long quadrangular shape by an upper frame, a lower frame, and left and right vertical frames, and the biasing means is arranged along the vertical frame and has one end portion. Is connected to the lower end of the window main body, the other end is connected to the upper end of the vertical frame, and the lower end of the window main body is urged upward to open and rotate the window main body. Window opening and closing device.