JPH0332218Y2 - - Google Patents

Description

[Detailed description of the invention] This application relates to a double locking device for a locking device for a sash, which double locks the locked locking device for a sash with a locking device operated by a key, and in addition to increasing the crime prevention effect. This is intended to prevent accidents such as falls when used in specific locations.

In the case of locking devices for sashes, a double locking device has traditionally been used, which controls the rotation of the handle of the locking device by operating the locking device. It's getting an effect. However, conventionally used double locks are locked by operating a knob or push button attached to the locking device, so once you learn how to operate it, it is easy for even children and students to open the lock. Therefore,
If the conventional product is used in specific places such as nursery schools and schools, such as corridors between buildings, and places with storage attached to buildings, the double locks will be released and the shoji will open and go out onto the roof, preventing a fall accident. There is a risk of this happening. In view of the above, the present application is designed to eliminate the drawbacks of the conventional method by locking the locking device with a locking device operated by a key and preventing anyone other than the administrator from opening the shoji, and the present application will be implemented hereinafter. A detailed explanation will be given by way of example drawings.

Figure 1 shows a conventionally well-known bypass sash, in which both the left and right sides are fitted with F and F1.
A shoji 1 is built in the center so that it can be opened and closed both in the left and right directions, and the embodiment will be described with reference to the case where the present application is applied to the above-mentioned bypass sash.

In FIG. 2, reference numeral 2 denotes a locking device, in which a handle 4 is rotatably attached to a stile 3 of the shoji, and a locking lever 5 has a locking roller 6 at the tip and rotates in synchronization with the handle 4. are installed coaxially. The mullion 7 corresponds to the locking lever 5 of the locking device 2.
A catch seat 8 is screwed to the seat 8, and an engaging protrusion 9, a guide tube 10, and a casing 11, which will be described in detail below, are respectively protruded from the catch seat 8. As shown in the drawings, the engagement protrusion 9 has an L-shape, and is attached to the casing 11 so as to be connected to the leg 9a at the tip of the leg 9a.
is protruded from the catch seat 8, and a locking device 13 operated by a key 12 is fitted inside the casing 11. Since the locking device 13 is appropriately selected from commercially available products, its details will be omitted. Next, a guide tube 10 is provided to protrude above the catch 8 so as to correspond to the casing 11, and a rectangular guide hole 14 is bored in the guide tube 10. A guide member 15 is configured to guide a guide rod to be described later.

Finally, the lock plate 16 is as follows. As shown in FIG. 2, the locking plate 16 is provided with an arc-shaped locking surface 17 approximately at the center of the side corresponding to the locking device 2 (the left side in FIG. 2), and a square-shaped locking surface 17 is provided on the upper left side. A mounting portion 20 of the guide rod 19 is provided in a protruding manner through the mounting hole 18 . The guide rod 19 has a rectangular shape similar to the guide hole 14, and furthermore, the guide rod 19 has a rectangular shape similar to the guide hole 14.
The dimensions are set to minimize the fitting error between the guide rod 19 and the guide rod 19 to prevent rattling, and as shown in FIG.
After inserting it into the holder, the two are fixed using a roll pin 21 or other appropriate means. Therefore, the lock plate 16 is guided by the guide member 15 consisting of the guide rod 19 and the guide hole 14, and linearly slides on the catch seat 8 in the horizontal direction, but does not rotate so as to move away from the catch seat 8. Do not perform any physical exercise. Furthermore, a stopper 22 as shown in FIG. 6 is protruded from the bottom surface of the locking plate 16 (the sliding surface with the catch seat), and the stopper 22 is fitted into a stopper groove 23 bored in the catch seat 8 to lock the plate. The forward end of the plate 16 (the leftward moving end in FIG. 6) is regulated.

The present application configured as described above operates as follows to perform double lock. As shown in FIG. 2, when the locking device 2 is in the unlocked state, the locking plate is located at the rearmost end. Next, as shown in FIG. 3, turn the handle 4, and the locking roller 6 attached to the tip of the locking lever 5 rotates in sync with the handle 4.
is engaged with an engaging protrusion 9 protruding from the catch seat 8 to lock the lock. At this time, the tip of the locking lever 5
Although the rotation is made by drawing a trajectory shown by the imaginary line in the figure, since the locking plate 16 is located outside the trajectory as shown in the figure, the handle 4 can be freely locked and unlocked without any problem in forward and reverse rotation. You can go to After locking is performed as described above, double locking is then performed as described below. When the locking lever 5 is rotated and locked as shown in FIG. 3, when the locking plate 16 located at the rearmost end on the indoor side is pushed with a finger, the locking plate 16 is guided by the guide member 15. The locking plate 16 moves forward toward the outside of the room, and stops when the stopper 22 comes into contact with the front end of the stopper groove 23, and the locking plate 16 stops at the position shown in FIG. 4. Therefore, the forward movement of the lock plate 16 is
Since it is guided by the guide member 15 whose dimensions are set as described above, it is smooth without wobbling.
As is clear from the drawing, when the locking plate 16 moves forward as described above, the locking roller 6 engaged with the engagement protrusion 9 moves between the engagement protrusion 9 and the locking surface 17 of the locking plate 16.
If you try to turn the handle 4 in this state, the locking roller 6 will interfere with the locking surface 17 and the rotation will be restricted, so the locking by the locking device 2 will be released. Because there is no such thing,
Even in this state, it is as effective as the conventionally used double lock device in terms of preventing intrusion from the outside and increasing the crime prevention effect. However, in the present application, when the locking plate 16 is positioned as described above, the key 1 is inserted into the keyhole 13a.
2 and rotate the locking device 13 by a predetermined angle,
As a result, the locking piece 13b of the locking device 13 protrudes and fits into the locking hole 24 of the locking plate 16 (FIG. 4).
A double lock is achieved by locking the lock plate 16, and this state is maintained by pulling out the key 12. Therefore, when this is used in a specific place such as a school or nursery school, no one other than the administrator can lock the shoji 1. Since it is not possible to open the door, the above-mentioned unexpected disaster can be prevented. By turning the locking device 13 in the opposite direction using the key 12, the double lock is released, and when the locking plate 16 is moved back as shown in FIG. The shoji 1 can be opened and closed by unlocking it, and when the shoji 1 is opened and closed, the locking plate 16 is attached so that it cannot be rotated as described above, so it does not move rattling around, making it easy to use as well as during use. There is no discomfort. In the explanation of the above embodiment, the guide member 15 has been shown to have a square guide hole 14 and a square column guide rod 19, but the present invention is not limited to this. and lock board 1
It goes without saying that the object of the present application can be achieved as long as 6 is not rotated, and the application of the present application is not limited to bypass sashes.

As described in detail above, the present invention provides double locking by engaging a locking plate with a locking lever of a locked locking device, and locking the locking plate with a locking device operated by a key. This is an important device that can prevent the above-mentioned accidents in addition to the conventional crime prevention effect.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and Fig. 1 is a front view of a bypass sash according to the present invention as seen from the indoor side, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Figs. 3 and 4 are cross-sectional views. FIG. 1 is an explanatory view of the operation, FIG. 5 is a right side view of the main part of FIG. 4 with other parts omitted, and FIG. 6 is a sectional view taken along the line B--B of FIG. 4. 2... Locking device, 8... Seat, 9... Engaging protrusion, 10... Guide tube, 11... Casing, 13
... Locking device, 14 ... Guide hole, 15 ... Guide member, 16 ... Lock plate, 19 ... Guide rod.

Claims (1)

[Claims for Utility Model Registration] 1. A handle that is rotatably attached to one side of a shoji and a shoji or a shoji and a frame, and a catch that is fixedly attached to the other, coaxially interlocking with the handle. In a locking device for a sash, in which a locking lever provided to rotate is engaged with an engagement protrusion provided on a catch to lock a shoji, a guide member is provided on the catch, and a guide member is provided on the catch. The locking plate with a locking surface is placed in the locking position where the locking surface faces within the rotational trajectory in the unlocking direction of the locking lever where the locking surface is engaged with the engagement protrusion of the catch, and the unlocking position where the locking plate faces the rotational trajectory in the unlocking direction. The lock plate is coupled to the lock plate so as to be able to move linearly by a predetermined amount in a fixed position, and the catch plate is further provided with a locking device that can lock the lock plate in the lock position by operating a key that can be freely inserted and removed. Double lock device for locking device for sash. 2. The guide member consists of a guide tube that protrudes from the catch and has a rectangular guide hole, and the lock plate is connected to the guide member by inserting a rectangular guide rod installed in the locking plate into this guide hole. A double locking device for a sash locking device according to claim 1 of the claimed utility model registration.