JPH0527656Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fall prevention device for a rotating window.

In recent years, rotating windows attached to opening frames such as sashes have become larger and heavier, and the stress on the rotating shaft that rotatably supports the rotating windows has also increased accordingly. There is. Under these circumstances, attempts have been made to improve the strength of the rotating shaft itself, but on the other hand, if the rotating shaft is damaged due to an unexpected cause such as a gust of wind and the rotating window falls, it can be dangerous. Due to the large scale of the situation, measures to deal with such situations are also required.

[Prior Art] In the case of a vertical shaft rotating window, a conventional rotating window is rotatably mounted within an opening frame 1 formed by a frame member 10 such as an aluminum sash, as shown in FIG. The rotating window 2 and the opening frame 1 are the frame 20 of the rotating window 2.
They were connected by inserting a pivot shaft 31 protruding from the opening frame 1 into a pivot 32 on the opening frame 1 side.

[Problems to be solved by the invention] However, in the conventional rotating window 2, the pivot shaft 31 is detached from the pivot 32, or the pivot 32
In the event of an unexpected situation such as damage to the rotation shaft 3 consisting of the pivot shaft 31 and the opening frame 1,
It had the disadvantage of lacking safety as it could easily fall off.

In addition, some rotating windows 2 are equipped with an operating arm 30 for adjusting the opening angle, etc., but the operating arm 30 was originally expected to have a function of adjusting the rotation angle of the rotating window 2. It is provided by
If the operating arm 30 itself does not have very high strength and the rotating window 2 is heavy, it will not be able to support the rotating window 2 in the event of damage to the rotating shaft 3, and the rotating window 2 will not fall. It was impossible to prevent it.

The present invention has been made in order to eliminate the above-mentioned drawbacks, and an object of the present invention is to provide a fall prevention device for a rotating window in which there is no fear that the rotating window 2 will fall off the opening frame 1.

[Means for Solving the Problems] According to the present invention, the above object is achieved by rotating the central part of the rotating window 2 within the opening frame 1, as shown in FIGS. 1 and 2 corresponding to the embodiment. The frame member 1 of the opening frame 1 is located in the vicinity of the rotary shaft 3 that is movably supported.
0 and the stile 20 of the rotating window 2 are provided with receiving members 4 and 5 that are located opposite to each other, and one of the receiving members 4 and 5 is provided with a connecting pin 6 installed vertically to detach the other receiving member 5. One of the receiving members 4 and 5 has a rotating shaft 3.
This is achieved by providing a fall prevention device for a rotating window which receives the connecting pins 6 of the other receiving members 5 and 4 by drilling a guide hole 7 having a concentric curvature.

[Operation] Based on the above configuration, in the present invention, the rotating window 2
and the opening frame 1 are connected by inserting a connecting pin 6 erected on the receiving member 4 on the opening frame 1 side into the guide hole 7 of the receiving member 5 fixed on the rotary window 2 side.

The guide hole 7 is formed to have a curvature concentric with the rotating shaft 3, and prevents sliding contact between the connecting pin 6 and the guide hole 7 during the normal rotating operation of the rotating window 2. To ensure smooth rotation of the rotating window 2.

On the other hand, in the event that an unexpected situation such as damage to the rotating shaft 3 occurs, the rotating window 2 will close because the receiving members 4 and 5 are irremovably connected to each other via the connecting pin 6. Falling from the opening frame 1 is prevented.

[Embodiments] Hereinafter, preferred embodiments of the present invention will be described in detail.

1 and 2 show an embodiment of the present invention applied to a vertical rotating window 2, and FIG. 1 is a cross-sectional view of the rotating window 2 including its center of rotation;
FIG. 2 is a perspective view of the receiving members 4 and 5 attached to the opening frame 1 and the rotating window 2. As shown in FIG.

In the drawings, 10 indicates an upper frame member constituting the opening frame 1, 20 indicates an upper stile of the rotating window 2, and the rotating window 2
is rotatably supported on the opening frame 1 via a rotation shaft 3 at its center in the width direction.

The receiving member 4 fixed to the upper frame member 10 of the opening frame 1 may have an appropriate edge shape, but in this case, it is a plate material having a semicircular shape in plan view, and the screw hole 43 at the edge thereof is It is fixed to the opening frame 1 itself or to the supporting member 11 and reinforcing member 12 attached thereto by screwed fixing screws 43a. In this case, the support member 11 is joined to an anchor on the building frame side.

On the other hand, on the upper stile 20 of the rotating window 2, a receiving member 5 having a substantially L-shaped cross section includes a horizontal piece 51 facing the receiving member 4 on the upper frame member 10 side and a fixed piece 52. However, in the fixed piece 52, the reinforcing connecting member 5
3, and the horizontal piece 51 has an arc-shaped guide hole 7 that is concentric with the rotation shaft 3 when it is fixed to the upper stile 20.

A connecting pin 6 that connects both of these receiving members 4 and 5
is made of stainless steel or the like, and has a flange portion 61 having a diameter larger than at least the width direction dimension L of the guide hole 7, and a thin flange portion 61 that can be inserted into the attachment hole 44 drilled in the receiving member 4 on the upper frame member 10 side. Diameter portions 62 are formed at both ends, and a main shaft portion 60 is formed in the middle portion thereof to be slidably inserted into the guide hole 7, and the narrow diameter portion 62 is formed on the upper frame member 10 side. After being inserted into the mounting hole 44 of the receiving member 4, the tip thereof is fixed to the receiving member 4 by caulking or further welding.

Therefore, according to this embodiment, the main shaft portion 60 of the connecting pin 6 implanted and fixed in the receiving member 4 on the side of the opening frame 1 is bored in the receiving member 5 on the side of the rotating window 2. Since the receiving member 5 is inserted into a guide hole 7 arranged concentrically with respect to the center of rotation of the rotating window 2, the receiving member 5 can rotate following the rotation of the rotating window 2. If rotation around the rotating shaft 3 is guaranteed, and if the rotating window 2 attempts to come off the opening frame 1 due to a malfunction of the rotating shaft 3, the receiving member 5 of the rotating window 2 will move against the flange of the connecting pin 6. 61, the rotating window 2 is suspended by the connecting pin 6 and prevented from falling.

Although the present invention has been explained above using a vertical axis rotating window as an example, it goes without saying that it can be similarly applied to a so-called horizontal axis rotating window.
In that case, in order to maintain balance, it is desirable to provide the left and right rotating shafts respectively, and the connecting pin 6
Also, contrary to the above-mentioned embodiment, the rotating window 2
It is also possible to install it upright on the side receiving member 5.

[Effects of the invention] As is clear from the above explanation, according to the rotating window dropping device of the present invention, there is no possibility that some kind of malfunction will occur in the rotating shaft and the rotating window will fall off the opening frame. However, since the rotating window is supported by the opening frame via the connecting pin, its safety can be dramatically improved.

Furthermore, since the guide hole of the upper member into which the connecting pin is inserted has a curvature concentric with the rotation axis, the connecting pin does not come into sliding contact with the guide hole during normal rotating operation of the rotating window. enables smooth operation.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part showing an embodiment of the present invention, FIG. 2 is a perspective view of FIG. 1, and FIG. 3 is a sectional view of a conventional rotating window. 1... Opening frame, 2... Rotating window, 3... Rotating axis,
4, 5...Receiving member, 6...Connecting pin, 7...Guiding hole.

Claims (1)

[Claims for Utility Model Registration] In the vicinity of the rotation shaft 3 that rotatably supports the central part of the rotating window 2 within the opening frame 1, the frame member 10 of the opening frame 1 and the stile of the rotating window 2 20 are provided with receiving members 4 and 5 located opposite to each other, and one of the receiving members 4 and 5 is connected with the other receiving member 5 irremovably by a connecting pin 6 provided upright, A rotating shaft 3 is attached to either of the receiving members 4, 5.
A fall prevention device for a rotating window in which a guide hole 7 having a concentric curvature is formed to receive a connecting pin 6 of another receiving member 5, 4.