JPH059426Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) The present invention relates to a window opening/closing device used for smoke exhaust windows and the like.

(Prior Art) Mid-to-high-rise buildings are equipped with smoke exhaust windows that allow smoke to be immediately exhausted in the event of a fire or the like. In this smoke exhaust window opening/closing device, an opening in a window frame is opened by rotating the window body outward about its lower end as a fulcrum. The window body is biased in the opening direction by a biasing member such as an air spring. Further, the window body is configured to be closed by a rope (stripe body) against the elastic force of the biasing member. That is, a pulley is provided at the top of the window body, and a pulley is also provided at the top of the window frame, and a rope is stretched around these pulleys. The window body is then closed by pulling and winding this rope with a winder (not shown). This closed state is locked by a ratchet mechanism built into the winder. The window body is provided with airtight rubber, and the airtightness of the room is maintained by pressing the airtight rubber against the window frame.

In the above structure, the closed state of the window main body is maintained only by the tensile force of the rope, so that the closed state is unstable and airtightness cannot be sufficiently achieved. Particularly in mid-to-high-rise buildings, when the wind is strong, the pressure difference between indoors and outdoors becomes large, and this pressure difference causes the window body to receive force in the direction of opening, which can stretch the rope and cause air leaks. Furthermore, in the event of a typhoon, there was a risk that the window body would be released.

Therefore, the present applicant developed a window opening/closing device as seen in Japanese Utility Model Application Publication No. 61-71775. In this device, a support mechanism supports the lower part of the window main body so that it can rotate with respect to the lower part of the window frame and can move a predetermined distance in the vertical direction. Further, the window body side pulley is disposed below the window frame side pulley, so that the window body can be moved upward from the closed state. Furthermore, when the window body moves upward as described above, the locking mechanism locks the upper part of the window body to the upper part of the window frame.

(Problem that the invention is trying to solve) However, in the above opening/closing device, one end of the biasing member is rotatably supported at the top of the window body, and the other end is rotatably supported at the bottom of the window frame. , this biasing member always pushes the window body diagonally upward. Therefore, this biasing member, when the strip is loosened,
The locking mechanism does not work in the direction of releasing the locked state. Therefore, in order to reliably release this locked state, it was necessary to provide a mechanism on the window frame side to constantly push the window body downward.

Structure of the invention (Means for solving the problems) The invention was made to solve the above problems, and its gist is a window frame, and a lower part of the window frame that is rotatable and can be moved up and down. a window body supported so as to be movable a predetermined distance in a direction; a biasing member provided between the window frame and the window body to always bias the window body in an open direction; and a window provided at the top of the window frame. frame side pulley,
A window body side pulley provided on the upper part of the window body and located below the window frame side pulley, a strip stretched between this window body side pulley and the window frame side pulley, and this A winding machine that rotates and closes the window body against the biasing member by winding up the strip while pulling it, and further lifting the window body upward from this closed state; A window opening/closing device comprising: a locking mechanism that locks the top of the window body to the top of the window frame to prevent the window body from rotating in the opening direction when the window body moves further upward from the window frame;
A window opening/closing device characterized in that one end of the biasing member supported by the window body is disposed below the other end supported by the window frame so that the biasing member always pushes the window body obliquely downward. .

(Operation) By winding up the strip with a winder, the window body is rotated and closed, and the window body is further pulled upward from this closed state to lock the upper part of the window body to the upper part of the window frame. and ensure that the window body remains closed.

Moreover, since one end of the biasing member supported by the window body is disposed below the other end supported by the window frame, the biasing member always pushes the window body obliquely downward. Therefore, when the strip is loosened, the force of the biasing member releases the window main body from the locked state and rotates it in the opening direction. Therefore,
There is no need for any special configuration such as a push mechanism to reliably release the locked state.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 6. Reference numeral 10 in FIG. 1 is a window frame, and this window frame 10 is composed of an upper frame 11, a lower frame 12, a vertical frame 13, and a mullion 14, and has a plurality of openings 15. These openings 15 each have a window main body 2
Opened and closed by 0.

As shown in FIGS. 2 and 4, the window main body 20 is framed by an upper stile 21, a lower stile 22, and a vertical stile 23, and is constructed by fitting a glass plate 24 into the frame. Airtight rubber 25 is provided on the indoor side surface of each window body 20 over the entire circumference. The three window bodies 20 are connected to each other by a connecting piece 27 so that they can be opened and closed as one unit.

As shown in FIGS. 4 to 6, the lower frame 22 of the window main body 20 is supported by the lower frame 1 of the window frame 10 by the support mechanism 30.
2, it is supported so as to be rotatable and movable up and down. To explain in detail, the support mechanism 30 includes the lower frame 12
It has a hinge member 31 fixed to and a hinge member 35 fixed to the lower stile 22. Lower frame 12
A protrusion 32 extending in the longitudinal direction of the lower frame 12 is formed at the tip of the side hinge member 31 . This protrusion 32 is formed to have a perfect circle in cross section. Further, the hinge member 35 on the lower stile 22 side is formed with an engagement hole 36 into which the projection 32 is engaged. Engagement hole 3
6 is a vertically elongated hole.

The window body 20 includes an air spring (biasing member) 4
0, it is always biased in the direction of opening outward.
The air spring 40 has a cylinder 41 containing compressed nitrogen gas, for example, and a piston rod 42 that slides inside the cylinder 41. The base end of the cylinder 41 is rotatably connected to the lower part of the vertical stile 23 of the window body 20 via a bracket 43. Further, the tip end of the piston rod 42 is rotatably connected to the upper part of the vertical frame 13 of the window frame 10 via a bracket 44, and the base end of the cylinder 41 connected to the window body 20 is connected to the window frame 10. It is located below the tip of the piston rod connected to 10. Therefore, the air spring 40 always pushes the window body 20 diagonally downward.

The window body 20 is adapted to be closed by the tension of a rope (stripe body) 50. More specifically, as shown in FIG. 3, a support member 51 having a U-shaped cross section is fixed to the upper end of each vertical stile 23 of the window body 20. A window body side pulley 52 is rotatably supported by this support member 51.
The rotation axis of this window body side pulley 52 is substantially parallel to the longitudinal direction of the upper stile 21. Also, window frame 10
A large number of window frame side pulleys 53 are also arranged on the side. That is, a support member 54 having a U-shaped vertical cross section is swingably supported on the lower surface of the upper frame 11 via a mounting base 54a, and a window frame side pulley 53 is rotatably supported by this support member 54. ing. Support member 5
4 is parallel to the longitudinal direction of the upper frame 11. Further, the rotation axis of the window frame side pulley 53 is the upper frame 1
It is perpendicular to the longitudinal direction of 1. Window body side pulley 52
is arranged below the window frame side pulley 53.

The rope 50 is alternately strung around the pulleys 52 and 53, and one end is fixed by an end fixing member 55 at the right end of the window frame 10 (FIGS. 1 and 2). This terminal fixing member 55 is fixed to the window frame 10 above the window main body side pulley 52. The other end of the rope 50 is led out from the left end of the window frame 10 by a guide tube 56, and extends downward via a pulley 57 as shown in FIG. The end of the rope 50 extending downward is connected to a winding machine 5.
It is designed to be wound up at 8. The winder 58 has a handle 59, and by operating the handle 59 to rotate a drum (not shown),
The rope 50 is wound onto a drum. During winding, the drum is locked by a ratchet mechanism or the like built into the winder 58 to prevent it from reversing.

As shown in FIGS. 4 to 6, an L-shaped locking member 61 is fixed to the upper frame 11 of the window frame 10. As shown in FIGS. This locking member 61 has a recess 62 that opens downward.
have. The recess 62 has a tapered surface 63. By the locking member 61 and the upwardly extending upright piece 65 formed on the upper stile 21 of the window main body 20,
A locking mechanism 60 is configured, which functions as described below.

Next, the operation of the device having the above configuration will be explained.
When the handle 59 of the winder 58 is turned with the window main body 20 opened as shown in FIG. 6, the rope 50 is wound and pulled, and the pulley 52 wrapped around the rope 50 , 53 are brought closer to each other. In other words, the window body 20 rotates against the elastic force of the air spring 40, reaches the window frame 10, and closes the opening 15, as shown in FIG.
In this state, the airtight rubber 2 provided on the window body 20
5 comes into pressure contact with the window frame 10 to make the room airtight.
When the window main body 20 is rotated, the engagement hole 36 is inserted into the projection 3.
Rotates around 2.

In the state shown in FIG. 5, the window body side pulley 52 is located almost directly below the window frame side pulley 53. Therefore, when the rope 50 is further wound up by the winding machine 58, the window body 20 is pulled upward against the elastic force of the air spring 40, and as shown in FIG. enters the recess 62 of the locking member 61 on the upper frame 11 side and hits the tapered surface 63 thereof. During this process, the engagement hole 36 moves upward relative to the protrusion 32.

As described above, the upright piece 65 and the locking member 6
1, the closed state of the window body 20 is reliably maintained, and the airtight rubber 2
5 to the window frame 10 is ensured, the airtightness of the room can be reliably maintained, and the window main body 20 can be prevented from being opened inadvertently.

Next, when smoke is to be discharged in the event of a fire or the like, the drum of the winder 58 is unlocked and the rope 50 is loosened. As a result, the window main body 20 is moved downward by the elastic force of the air spring 40 to the state shown in FIG.
Due to the elastic force, it rotates and opens as shown in FIG.

The present invention is not limited to the above-mentioned embodiments, and various embodiments are possible. For example, the window body may be opened inward. Alternatively, it may be of a single window type.

Furthermore, the support member for the pulley on the window body side is supported by the upper stile so that it can swing like the pulley on the window frame side, and its swing axis is parallel to the upper stile, and the rotation axis of the pulley on the window body side is aligned with the upper stile. They may be orthogonal.

Effects of the Invention As explained above, in the present invention, after the window body is closed, the window body is pulled upward and the upper part of the window body and the window frame are engaged, so that the closed state of the window body can be controlled by the strip. It can be held securely without relying on pulling force, maintain airtightness under all conditions, and prevent the window body from opening accidentally.

Further, since the biasing member always pushes the window body obliquely downward, when the strip is loosened, the window body is released from the locked state by the biasing member and rotated in the opening direction. Therefore, there is no need for any special configuration such as a push mechanism for reliably releasing the locked state.

[Brief explanation of the drawing]

Fig. 1 is a front view of a window equipped with the opening/closing device of the present invention, Fig. 2 is a cross-sectional view of the same, Fig. 3 is a perspective view showing the positional relationship between the rope and pulley of the opening/closing device, and Figs. 4 to 6. The figure is a longitudinal sectional view illustrating the opening/closing operation of the window step by step. DESCRIPTION OF SYMBOLS 10... Window frame, 15... Opening, 20... Window main body, 30... Support mechanism, 40... Air spring (biasing member), 50... Rope (stripe body), 52...
Window body side pulley, 53... Window frame side pulley, 58... Winder, 60... Locking mechanism.

Claims (1)

[Scope of utility model registration request] A window frame, a window body whose lower part is rotatable and supported at the bottom of the window frame so as to be movable a predetermined distance in the vertical direction; A biasing member that biases, a window frame side pulley provided at the top of the window frame, a window body side pulley provided at the top of the window body and arranged below the window frame side pulley, and this window. A strip is stretched between the main body side pulley and the window frame side pulley, and by pulling and winding this strip, the window body is rotated and closed against the biasing member. , a winder that pulls the window body further upward from this closed state, and a winder that locks the top of the window body to the top of the window frame when the window body moves further upward from the closed state, and moves the window body in the direction of opening. In a window opening/closing device equipped with a locking mechanism that prevents rotation, one end of the biasing member supported by the window body is supported on the window frame so that the biasing member always pushes the window body diagonally downward. A window opening/closing device characterized in that the window opening/closing device is arranged below the other end of the window.