JPH0540207Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] Some casement windows are disclosed in Japanese Utility Model Publication No. 38142/1983. In this device, rails are provided along the direction of the upper and lower frames, and a vertical sliding metal fitting is provided on one side of the shoji, and a guide wheel of the metal fitting is placed astride the rail to support the shoji so that it can slide and rotate freely. On the other hand, this is a window in which the upper and lower frames are connected by upper and lower arms, and one side of the shoji is moved in the facing direction by utilizing the rotational force applied to the other side of the shoji when opening and closing. If this type of window is not provided with a locking means, the shoji will swing and will not fit properly. Therefore, a locking plate is attached to the lower sliding metal fitting, and at the same time, a receiver that engages and disengages with this locking plate is attached to the lower frame. I am trying to set it up. The lock plate is designed to be moved in the vertical direction, and is placed in either an upper position or a lower position. On the other hand, in the receiver, a large number of locking holes are formed along the facing direction so that the shoji can be fixed at any opening angle.

In this type of window structure, the other side of the shoji is generally fixed by a lock handle, so when opening the shoji, first remove the lock handle and at the same time raise the lock plate to the upper position. Push the other side outward. When such an operation is performed, one side of the shoji moves in the mitsuke direction using the connecting point between the arm and the shoji as a fulcrum, and the other side rotates outward. When the desired opening angle is obtained in this way, push down the lock plate to lock it in the locking hole. In this case, since the lock plate prevents movement in the facing direction, the opening angle of the shoji is fixed.

[The problem that the idea attempts to solve]

However, when the shoji is flipped open in a strong wind, the shoji may be blown open by the wind before the locking board can secure the shoji. In this case, an excessive load is applied to the vertical sliding metal fittings that support the shoji, and the shoji may become too strong and fall off the rails. In such a situation, the shoji is only barely supported by the upper and lower arms, so there is a risk of it falling.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a safety lock device for a casement window that prevents the above-mentioned situation from occurring even if the sliding shoji is opened under strong winds.

[Means to solve the problem]

In order to achieve the above object, the present invention connects the shoji and the window frame with upper and lower arms, and when the shoji opens at an appropriate angle, the lock plate on the side of the shoji locks into the receiver on the side of the window frame. In a casement window to which a shoji is fixed, a latch holder is attached to the lower surface of the lower arm, and a long hole is provided in the latch holder that is elongated in the indoor/outdoor direction, while a vertical hole is provided in the upper surface of the lower frame corresponding to the latch holder. There is a lock pin that appears in the
It is characterized in that the lock pin is urged upward to face the elongated hole.

[Effect]

In the present invention, since the lock pin is located on the underside of the lower arm, the shoji cannot be fully opened unless pushed with something such as a screwdriver. Therefore, even if you remove the lock plate and open the shoji in a strong wind, it is safe because the shoji will only move within the range of the long holes in the latch receiver.

〔Example〕

A detailed description will be given below with reference to the drawings.

First, we will explain the outline of the casement window in which this invention is implemented in the third section.
This will be explained with reference to FIGS. In this case, the casement window to be implemented has a left-right orientation, but the present invention is not affected by the left-right orientation, so it can be implemented in either case. Therefore, here, the description will focus mainly on the right-hand casement window 1 shown in FIG. In the illustrated casement window 1, the left vertical stile 3C of the shoji 3 pushed into the window frame 2 is the upper and lower frames 2A, 2.
It slides along B and further rotates around a vertical axis. And the movement of the left stile 3C is
Approximately the middle part of the upper and lower frames 3A and 3B and the upper and lower frames 2A and 2B
The right frame 2D is regulated by upper and lower arms 4 and 5 which rotatably connect the sills, respectively, and when opened, the shoji 3 is biased toward the center of the window 1, and the right vertical stile 3D opens wide outward. A vertical sliding metal fitting is designed to perform such an operation. Although not shown in FIG. 3, these metal fittings are attached to the upper and lower parts of the left vertical stile 3C, that is, at the positions indicated by arrows A and B in the figure.

Since the upper and lower sliding fittings usually have the same configuration, only the lower sliding fitting will be explained here, and the explanation of the upper sliding fitting will be omitted. Therefore, the lower sliding fitting 7 will be explained with reference to FIG. 5. This fitting is roughly divided into a rotation support part C and a running part D attached to the lower end of the rotation support part C. . Among these, the rotation support part C is a part that rotatably supports the lower part of the left vertical stile 3C, and a mounting bracket 8 fixed with screws is arranged in the vertical direction at the lower part of the left vertical stile 3C. It is rotatably supported on a rotation shaft 9. On the other hand, the running section D is a section configured to run on a lower rail 10 laid on the lower frame 2B, and a guide wheel 11 placed on the lower rail 10 is fixed to the lower end of the rotation shaft 9. It is supported by a bifurcated frame 12. In this case, simply placing the guide wheel 11 on the lower rail 10 may cause the wheel to come off. Therefore, both ends of the frame 12 are extended to cover the lower rail 10 in order to prevent the wheels from coming off.

In the casement window 1 configured in this way, when the right stile 3D is pushed outward, the right stile 3D moves against the left stile 3C.
The left vertical stile 3C is rotated outward using the fulcrum as a fulcrum, and at the same time the left vertical stile 3C is pulled by the upper and lower arms 4 and 5.
The vertical sliding fittings slide on the vertical rails to the right frame 2D.
Move to the side. In this case, unless the upper and lower sliding fittings are fixed by some means, the shoji 3 cannot be fixed at any opening angle, so in this type of casement window 1, the lower sliding fitting 7 is generally attached to the lower frame. A fixing means E for fixing 2B to the lower sliding fitting 7 is provided. In this case, as shown in FIG.
It is constituted by a receiver 14 arranged along the upper surface of B. And, at the upper end of the lock plate 13,
A camera 13A is attached to move the lock plate 13 selectively between an upper position and a lower position, and its lower end is supported by a shaft supporting the guide wheel 11 so as to be movable up and down. On the other hand, in the receiver 14, a plurality of locking holes for receiving the lower end of the lock plate 13 are arranged along the finding direction. Although multiple locking holes are not shown, there are one each in the closed position and the fully open position.
A plurality of them are arranged between the closed position and the fully open position. When the lock plate 13 is closed, the photograph 13 of the lock plate 13 is usually
A is pushed into the lower position, so when opening, lift this photo 13A to the upper position,
Remove the lower end of the lock plate 13 from the locking hole of the receiver 14, and remove the lock handle fixing the right vertical stile 3D. In this case, when the window is opened in a strong wind, the shoji 3 will be blown open by the wind, and the upper and lower guide wheels may come off the upper and lower rails and become suspended in the air. In such a situation, the shoji 3 may fall, which is extremely dangerous.

As shown in FIGS. 1 and 2, the present invention provides a safety lock device 1 between the lower arm 5 and the lower frame 2B, which moves within a relatively small range compared to the movement of the shoji 3.
5 and further restricts the movement of the lower arm to avoid the above-mentioned danger, and is constructed as follows.

Hereinafter, referring to the drawings, the safety lock device 15 basically consists of a latch receiver 20 which cooperates with a lock pin 16 to further restrict the movement of the lower arm 5.
It is made up of. In this case, the lock pin 16 is attached to the side of the lower frame 2B, and the upper part 16a is formed to have a small diameter, and the lower part 16b is formed to have a slightly larger diameter. The large diameter portion 16b is
Case 1 with a slightly larger bottomed hole
7, and is held down by a holding plate 18 to prevent its large diameter portion 16b from slipping out. The small diameter part 16a, which looks above this presser plate 18, is arranged so that the large diameter part 16b can move up and down.
A gap is provided between the lower end and the bottom of the case 17, which is slightly longer than the upper surface of the small diameter portion 16a and the upper surface of the holding plate 18. A coil spring 19 for biasing the lock pin 16 upward is disposed between the hole bored in the lower surface of the large diameter portion 16b and the above-mentioned gap.

On the other hand, the latch receiver 20 is connected to the lower surface of the lower arm 5,
In particular, this metal piece 20 is attached to a position facing the lock pin 16, and this metal piece 20 is formed with a long hole 20a extending in the direction of the interior and exterior. As shown in FIG. 1, the width of the long hole 20a is formed to be slightly larger than the diameter of the small diameter portion 16a. Also, long hole 2
The length of 0a is set to such a length that the lower arm 5 can move freely within the range in which the shoji 3 is fixed at a small opening angle, as shown in FIG. Therefore, even if the shoji 3 is opened in a strong wind, it can be stopped before it gains momentum, so the vertical sliding fittings 6, 7
It is possible to effectively prevent wheels from falling off. Also,
The interior end of the elongated hole 20a is arranged to be slightly closer to the interior than the interior end of the lower arm 5. This is so that when the shoji 3 is opened, the upper surface of the lock pin 16 is exposed to the outside as far as the elongated hole 20a allows. Therefore, when cleaning, etc., the shoji 3 can be fully opened by pushing in the lock pin 16 that is visible outside with a screwdriver or the like and removing it from the elongated hole 20a. Further, since a tool is required to remove the lock pin 16, safety is not compromised. Also, if the indoor end of the latch receiver 20 is left straight, it will lock the lock pin 16 when the latch receiver 20 returns.
The side of the machine will come into contact with the end, making it difficult to return.
It is bent diagonally upward. In this way, the upper surface of the lock pin 16 is gradually pushed into the case 17 by the end of the latch receiver 20, so that the lock pin 16 can be easily returned to its original position without using any tools.

[Effect of idea]

As explained above, according to the present invention, even if the shoji falls under strong winds and is released, the movement of the shoji is restricted by the safety lock device and it does not open wide, which effectively prevents the shoji from falling. can be prevented.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing one embodiment of the present invention, Figure 2 is a cross-sectional view of Figure 1, Figure 3 is an interior view of a casement window in which the present invention is implemented, and Figure 4 is a shoji window. FIG. 5 is a schematic view showing the opened and closed state, and is an external view of the lower sliding metal fitting attached to the lower part of the left vertical stile. 1...casement window, 2...window frame, 3...shoji, 4,
5... Upper and lower arms, 13... Lock plate, 14...
Receiver, 15... Safety lock device, 16... Lock pin, 19... Coil spring, 20... Latch receiver, 20a... Long hole.

Claims (1)

[Scope of utility model registration request] A casement window in which the shoji and the window frame are connected by upper and lower arms, and when the shoji is opened at an appropriate angle, the lock plate on the side of the shoji locks into the receiver on the window frame to fix the shoji, A latch receiver is attached to the lower surface of the lower arm, and the latch receiver is provided with an elongated hole that extends indoors and outdoors.A lock pin that protrudes and retracts in the vertical direction is provided on the upper surface of the lower frame corresponding to the latch receiver, and the lock pin is inserted upward. A safety lock device for a casement window, characterized in that the locking device is biased toward the elongated hole.