JPH0332217Y2 - - Google Patents

Description

[Detailed description of the invention] The present application relates to a double locking device for a locking device for a sash, in which a locking plate sliding linearly on a catch is engaged with and released from a locking lever of the locking device in a locked state. In the engaged state, the rotation of the locking lever is restricted to enhance the crime prevention effect, and the locking device that is engaged with the locking lever is locked by a locking device operated with a key. This is intended to prevent accidents such as falls when used in places.

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.

In FIG. 2, 2 is a locking device, and a handle 4 is rotatably pivoted to a frame 3 of a shoji window with a single sliding window.
A locking lever 5 having a locking roller 6 at its tip and rotating in synchronization with the handle 4 is mounted coaxially. A catch 8 is fixed with screws 9 to the mullion 7 of the single-sliding window in correspondence with the locking device 2, and the catch 8 has an engaging protrusion 10, a pivot pipe 11, and a casing 12 protruding from each other, which will be described in detail below. ing. The engagement protrusion 10 has an L-shape as shown in the drawings, and the leg portions 13 of the engagement protrusion 10 are set to a predetermined length that does not interfere with the assembly of the locking plate 14, which will be described in detail later. , a guide groove 15 is provided at its tip 13a, and constitutes one guide member that guides an engagement protrusion 22 of a locking plate 14, which will be described later. The casing 12 is the second
In the figure, the lower part of the leg part 13 is provided so as to protrude from the catch seat 8 so as to overlap with the tip part 13a, and a key 1 is provided inside.
A locking device 17 operated at 6 is fitted so as to be rotatable in the forward and reverse directions, and the guiding portion 18 of the locking plate 14 is engaged with the side wall 12a of the casing 12 and the tip portion 13a.
is now being configured. Additionally, locking device 17
Since these are appropriately selected from commercially available products depending on the purpose, their details will be omitted. A pivot pipe 11 is provided on the opposite side of the casing 12 so as to correspond to the above-mentioned casing 12, and a pivot hole 19 is bored in the pivot pipe 11, and the other end guides a pivot 24 of a locking plate 14, which will be described later. It serves as a guide member.

Finally, the locking plate 14 is constructed as follows and is inserted into the catch seat 8 in the following manner. As shown in FIG. 2, the locking plate 14 is provided with an arc-shaped locking surface 20 approximately at the center of the side corresponding to the locking device 2 (left side in FIG. 2). Further, a guide protrusion 22 is formed on the lower side edge of the lock plate 14, and
A pedestal 23 is provided protruding from the upper left side surface, and a pivot 24 is implanted in the pedestal 23, and the locking plate 14 configured as described above is inserted into the receiving seat 8 in the following manner.

As shown in FIG. 4A, the locking plate 14 is lifted at an appropriate angle so as not to interfere with the engagement protrusion 10, the casing 12, etc., the pivot 24 is inserted into the pivot hole 19 of the pivot tube 11, and the pedestal 23 is and the pivot pipe 11, and then, as shown in FIG. 13 front end 13
Since a is set to a predetermined length that does not interfere with the assembly of the locking plate 14, the tip portion 13a and the locking plate 1
4, without interfering with the guide protrusion 22, facing the guide part 1 with a slight distance (0.5 mm inside or outside).
8, the lock plate 14 is attached to the catch seat 8 and becomes the attachment/detachment position (FIG. 4B). Next, as shown in FIG. 4C, the locking plate 14 is pulled out to the left, and a spacer 25, such as a spring washer or an E-shaped retaining ring, is fitted between the pedestal 23 and the pivot tube 11.
When the lock plate 14 is pulled out as described above, the guide protrusion 22 enters into the guide groove 15 by an amount corresponding to the amount of pull out and is guided. When the locking plate 14 that was pulled out after inserting the spacer 25 as described above is restored to its original state, the spacer 25 is interposed between the pedestal 23 of the locking plate 14 and the pivot tube 11, so as shown in FIG.
As shown in FIG. 5, the guide protrusion 22 is positioned as shown in FIG. 5 without directly contacting the pivot tube 11, and the tip of the guide protrusion 22 is at an assembly position where it slightly enters the guide groove 15 by an amount equivalent to the spacer 25. The assembly to the catch seat 8 is completed. Therefore, the locking plate 14 is connected to the pivot 24
It is possible to slide linearly on the catch seat 8 while being guided by the pivot hole 19 and the guide groove 15 without rotating around the center. does not require any tools, and when removing it, remove the spacer 25 and insert the guide groove 15.
This can be easily done by unfitting the guide protrusion 22 to the attachment/detachment position, and no tools are required in this case either. Further, the spacer 25 is not limited to a spring washer or an E-type retaining ring, but any type of spacer that can hold the locking plate 14 in the above-mentioned position satisfies the present application.

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 14 is located at the rearmost end on the indoor side. The guide protrusion 22 slightly enters into the guide groove 15. Next, as shown in FIG. 5, the handle 4 is turned, and the locking roller 6 attached to the tip of the locking lever 5, which rotates in sync with the handle 4, is engaged with the engaging protrusion 10 protruding from the catch seat 8. I lock it, but
At this time, the tip of the locking lever 5 rotates along the trajectory shown by the imaginary line in FIG. It can be locked and unlocked freely without any problem in rotation. 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.
Advance it toward the outside of the room as shown in the figure. The locking plate 14 is moved forward by the pivot shaft 24 and the guide protrusion 22 guided by the pivot hole 19 and the guide groove 15, so that it is smooth without any wobbling, and the tip of the guide protrusion 22 comes into contact with the rear end of the guide groove 15. The forward movement stops when it touches the lock plate 14.
are located as shown in FIG. As is clear from the drawing, when the locking plate 14 moves forward as described above, the locking roller 6 engaged with the engaging protrusion 10 is wrapped by the engaging protrusion 10 and the locking surface 20 of the locking plate 14. Even if you try to turn the handle 4 in this state, the locking roller 6 will interfere with the locking surface 20 and the rotation will be restrained, so the locking device 2 will not be unlocked and the handle 4 will remain in this state. In terms of preventing intrusion from the outside and increasing the crime prevention effect even in the above-mentioned state, it is as effective as the conventionally used double lock device. However, in the present application, as described above, the lock plate 14
is located at the forward end, the key 16 is inserted into the keyhole 17a and the locking device 17 is rotated by a predetermined angle, whereby the locking piece 17b of the locking device 17 protrudes and locks the locking plate 14. By fitting into the hole 26 (Fig. 6) and locking the locking plate 14, double locking is performed, and this state is maintained by pulling out the key 16, so this can be used to identify schools, nursery schools, etc. When used in a place, the shoji 1 cannot be opened by anyone other than the administrator, so the above-mentioned unexpected disasters can be prevented. By turning the locking device 17 in the opposite direction using the key 16, the double lock is released, and when the locking plate 14 is moved back as shown in FIG. The shoji 1 can be opened and closed by unlocking it.

Next, other embodiments of the present application will be described with reference to the drawings shown in FIGS. 7 to 13. Since the engagement of the locking roller 6 with the engagement protrusion 10 and locking is the same as described above, only the differences from the above embodiment will be described.

The catch seat 8 has a casing 12 similar to the above embodiment.
A locking device 17 is fitted into the casing 12 and rotates forward and backward when operated with a key.
A guide protrusion 122 is provided so as to extend the leg portion 13 of the engagement protrusion 10, and constitutes one guide member that guides a guide groove 115 provided in the locking plate 14, which will be described in detail later. . Next, the other guide member is constructed as follows. 11
1 is a catch seat 8 so as to correspond to the casing 12.
A holding portion protruding from approximately the center of the upper edge of the holding portion 1.
11 is provided with a T-shaped groove 119. As shown in FIG. 13, the T-shaped groove 119 has a higher step 119a at its right end, and the extension 1 of the higher portion serves as a spacer 125, and the lower portion serves as a guide groove 119b. On the other hand, on the left side of the upper edge of the locking plate 14, there is provided a notch 114a having approximately the same size as the holding part 111, and more precisely, the length in the vertical direction in FIG. 13 is slightly longer than the length in the vertical direction of the holding part 111. , one notch edge is used as the abutting surface 14b, and the end of the other notch edge is provided with a protruding T-shaped protrusion 124 that loosely fits into the T-shaped groove 119, and a locking surface 20 is provided in the same manner as in the previous embodiment. is provided.

Lock plate 14 of this embodiment configured as described above
is attached to and detached from the catch seat 8 in the following manner to achieve double locking. First, as shown in FIG.
4 is fitted into the spacer 125 portion of the T-shaped groove 119, and the locking plate 14 is positioned at the attachment/detachment position, at which time the lower portion of the left front end of the guide groove 115 is slightly fitted into the guide protrusion 122. Next, when the locking plate 14 is advanced, as shown in FIG.
4 falls into the step 119a and enters the guide groove 119b to reach the coupling position, the guide groove 115 and the guide protrusion 122 are in the normal fitted state, and the locking plate 14
changes from the state shown in Fig. 8 to the contact surface 1 as shown in Fig. 9.
Until the locking plate 4b comes into contact with the holding part 111, the locking plate 14 is guided by both guide members and performs a linear reciprocating motion while sliding on the catch seat 8, and the locking plate 14 in the coupled position cannot be removed from the catch seat 8. Can not. Further, in order to remove the locking plate 14 assembled to the catch seat 8 as described above, it can be easily removed by climbing over the step 119a and setting the T-shaped protrusion 124 to the attachment/detachment position fitted onto the spacer 125. No tools are required for assembly and disassembly.

In the state shown in FIG. 8, the locking lever 5 rotates along a trajectory shown by an imaginary line to lock and release, but since the locking plate 14 is located outside the rotational trajectory, the locking lever 5 The rotation of 5 is carried out without any problem. The locking roller 6 of the locking lever 5 engages with the engagement protrusion 10 to perform locking, and then the locking plate 14
When the locking lever 5 is moved forward as shown in FIG. 9, the locking lever 5 interferes with the locking surface 20 and its rotation is restrained, as in the previous embodiment, so that even in this state, security is provided to prevent intrusion from the outside. The effect is satisfactory. Next, the locking device 17 is rotated with the key, and the locking piece 17b
It is the same as in the previous embodiment that the double lock is achieved by engaging the locking hole 26 with the locking hole 26. In addition, in the above two embodiments, only the case where the present application is used for a one-sided sash is explained, but the application of the present application is not limited to this and can be applied to any other type of sash. .

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. By doing this, in addition to the conventional crime prevention effect, it is possible to prevent the occurrence of the above-mentioned accidents,
It is a useful device that has a number of effects, such as having a simple structure, which prevents failures, and also does not require any tools to attach or remove the lock plate.

[Brief explanation of the drawing]

Fig. 1 is a front view of the bypass sash, Fig. 2 is an enlarged front view of the double lock device of the present invention as seen from line A-A in Fig. 1, and Fig. 3 is a right side view showing only the necessary parts of Fig. 2. Figure 4 is an explanatory diagram showing the order of assembling the lock plate to the catch seat, Figure 5 is a front view showing the locked state,
Figure 6 is a front view showing the double lock state, Figures 7~
FIG. 13 shows another embodiment of the present application, FIGS. 7, 8, and 9 are explanatory diagrams showing the installation order, and FIG.
The figure is the right side view of Fig. 8, and Fig. 11 is the A- of Fig. 7.
FIG. 12 is an enlarged sectional view taken along line A, FIG. 12 is an enlarged sectional view taken along line B--B in FIG. 8, and FIG. 13 is an enlarged sectional view taken along line C--C in FIG. 2... Locking device, 4... Handle, 5... Locking lever, 8... Seat, 11... Pivotal pipe, 12...
Casing, 14...Lock plate, 15,115...
Guide groove, 17... Locking device, 19... Pivot hole, 2
0... Locking surface, 22, 122... Guide protrusion, 24
... Pivot, 111 ... Holding section, 119 ... T-shaped groove, 124 ... T-shaped projection.

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 sash locking device that locks a shoji by engaging a rotating locking lever with a catch, a pair of upper and lower guide members are provided on the catch, and these guide members are locked. A locking plate having a surface can be linearly moved by a predetermined amount between a locking position where the locking surface faces within the rotational trajectory in the unlocking direction of the locking lever in an engaged state with the catch, and an unlocking position where the locking surface is outside the rotational trajectory. and a locking device for a sash, which is removably coupled at a predetermined unlocking position, and further includes a locking device on the catch plate that can lock the locking plate in the locking position by operating a key that can be freely inserted and removed. Heavy locking device. 2. One guide member consists of a pivot tube having a pivot hole that guides the pivot shaft installed in the lock plate, and the other guide member consists of a guide groove or guide that guides the guide protrusion or guide groove provided in the lock plate. A double locking device for a sash locking device according to claim 1, which is comprised of an engaging projection having a projection. 3. One guide member is composed of a holding part having a T-shaped groove that guides a T-shaped protrusion protruding from the locking plate,
The double lock of the locking device for a sash according to claim 1, wherein the other guide member is constituted by a casing having a guide groove or a guide protrusion that guides a guide protrusion or a guide groove provided on the locking plate. Device. 4. A pivot embedded in the lock plate is provided so that it can be freely inserted and removed from the pivot hole of one guide member toward the lock side,
Practical use in which the guide projection or guide groove provided on the locking plate is formed so as to be detachable from the guide groove or guide protrusion of the other guide member at the unlocking side moving end of the locking plate, and the locking plate is removably provided on the guide member. A double locking device for a sash locking device according to claim 2 of the patent registration claim. 5 The T-shaped groove of one guide member is formed so that the T-shaped protrusion of the locking plate can be lifted by a predetermined amount, and in the lifted state, the T-shaped protrusion can be freely inserted and removed to the unlocking side, and the T-shaped protrusion is formed at the unlocking side end of the T-shaped groove. A locking device for a sash according to claim 3 of the utility model registration claim, wherein a raised step is provided to prevent the T-shaped protrusion from moving toward the unlocked side in a lifted and released state, and a locking plate is removably provided on a guide member. double lock device.