JP3005751U - Auxiliary locking device for crescent tablets - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Auxiliary locking device for crescent locks that uses a mounting screw that fixes the crescent lock to the window frame, and enables the mounting integrally without removing the mounting screw. Make installation work easy and quick. [Structure] Attached to a window frame 6 integrally with a crescent lock 7 by a mounting seat 5, and a cylinder lock 2 slidably provided on an upper half-saw portion 3 is lowered to engage an engaging recess 11 Is engaged with the knob portion 12 of the crescent lock in the locked state, and at that position, the cylinder lock is locked with the locking piece to bring it into the locked state.
In the auxiliary lock device for the crescent lock in which the cylinder lock is lifted to the unlocked state by means of the lock seat, the mounting screw holes 18, 19 of the mounting seat portion 8 of the crescent lock are provided in the mounting seat portion.
The upper and lower two mounting screw holes 16 and 17 are formed in correspondence with the above, and the upper mounting screw holes 16 are formed in a diagonally downward opening 2
0 is formed, and a downward opening 21 is formed in the lower mounting screw hole 17.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of an auxiliary lock device for a crescent lock which is often used for locking a sash window.

[0002]

[Prior art]

 Crescent locks, which are often used to lock sash windows, can be unlocked illegally by inserting a thin rod or plate between the outside of the window and the window frame and rotating the sickle. It was Even if it tried to prevent this, there was still a risk that the glass could be unlocked illegally by punching a hole in the glass near the crescent lock, inserting a hand and turning the crescent lock with the knob. It was

As a solution to this problem, there is an auxiliary lock device for a crescent lock, which is disclosed in, for example, Japanese Utility Model Publication No. 50-24467. The auxiliary lock device for this crescent lock is that "a cylinder lock is slidably mounted on a saw-toothed rod having a mounting seat at the lower end, and it swings inside a bottom of the cylinder lock by a cam integrated with a rotor. Provide a locking piece whose back surface is pressed with a blade, and engage the tip of this locking piece with the sawteeth formed on one side of the sawtooth rod, while facing the pair of left and right projections downward with the casing of the cylinder lock. Formed.

The above-mentioned auxiliary locking device for the crescent lock fixes the crescent lock by using the mounting screw attached to the window frame body, and corresponds to the position of the mounting screw for the crescent lock on the mounting seat portion. Round and long mounting screw holes are formed. At the time of mounting, the screw is once removed, and the mounting seat of the lock device is fastened together with the mounting seat of the crescent lock with the mounting screw.

[0005]

[Problems to be solved by the device]

 However, in the above-mentioned conventional auxiliary lock device for the crescent lock, the attachment work is troublesome. That is, when an auxiliary locking device for a crescent lock is to be attached to an existing crescent lock, the two mounting screws that fix the mounting seat of the crescent lock to the window frame body are first removed, and then the It is necessary to pass the two mounting screws together with the mounting seat of the crescent lock through the mounting screw holes of the mounting seat of the lock device, and screw them into the mounting screw holes of the window frame again to tighten and fix them. It takes time for construction workers, and it is difficult for an amateur to install.

The present invention is intended to solve the problems of the conventional auxiliary lock device for a crescent lock. That is, the object of the present invention is to attach the crescent lock mounting seat to the window frame by using two mounting screws, but the mounting screw can be easily and quickly mounted without once removing it. It is to provide an auxiliary lock device for a crescent lock that can be attached to an existing crescent lock even by an amateur.

[0007]

[Means for Solving the Problems]

 According to the present invention, the upper half portion is a saw-tooth portion 3 having a large number of serrated teeth 4 on the side edge, and the lower half portion can be attached to the window frame body 6 integrally with the attachment seat portion 8 of the crescent lock 7. It is composed of a vertically elongated main plate 1 for locking having a mounting seat 5, and a cylinder lock 2. The cylinder lock 2 is provided with the cylinder lock 2 slidably in the sawtoothed part 3 in a vertically slidable state. The knob portion 12 of the crescent lock 7 is non-rotatably engaged with the lowered engaging recess 11 of the cylinder lock 2 so that the locking piece 13 provided on the cylinder lock 2 engages with the serrated tooth 4. Then, the lock state that prevents the cylinder lock 2 from rising is obtained, and the engagement of the locking piece 13 is released by the operation of the duplicate key 14 so that the cylinder lock 2 can be raised and the lock state is unlocked. In the device,

In the mounting seat portion 5 of the hanging main plate 1, two upper and lower mounting screw holes 16 and 17 are formed corresponding to the mounting screw holes 18 and 19 of the mounting seat portion 8 of the crescent lock 7. Then, an opening 20 is formed obliquely downward in the mounting screw hole 16 in the upper stage, and a downward opening 21 is formed in the mounting screw hole 17 in the lower stage.

In the above structure, the locking main plate 1 is slidably inserted between the rear side of the rotor case 22 of the cylinder lock 2 and the back plate 23, and the main plate 1 for mounting is attached to the window frame body. The cylinder lock 2 can be freely slid upward even when the locking piece 13 is unlocked in the state of being attached to the cylinder 6.

Further, the locking piece 13 may be made of a spring steel plate bent into a V shape, and one side piece thereof may be biased by the elasticity of itself so as to be engageable with the serrated teeth 4. (See FIG. 3), it may have no elasticity and be biased by a separate spring.

[0011]

[Action]

 The use state of the auxiliary lock device for the crescent lock according to the present invention is as follows. First, the crescent lock 7 is attached to the window frame body 6 in two positions on the window frame body 6 in correspondence with the upper and lower two mounting screw holes 18 and 19 formed in the mounting seat portion 8 of the crescent lock 7. A screw hole (not shown) is formed, and mounting screws 9 and 10 are screwed and fixed from the mounting screw holes 18 and 19 of the mounting seat portion 8 to the female screw holes of the window frame body 6.

To attach the auxiliary locking device according to the present invention to the crescent lock 7, the mounting screws 9 and 10 that fix the mounting seat portion 8 of the crescent lock 7 are not temporarily removed but simply temporarily In the loosened state, the mounting seat 5 of the lower half of the main plate 1 for latching of the auxiliary locking device is installed in the gap formed between the mounting seat 8 and the window frame body 6 from diagonally above. Insert (see Figure 3).

At that time, the lower mounting screw hole 17 formed in the mounting seat portion 5 of the present auxiliary locking device is in the shape of an elongated hole having the downward opening portion 21, and therefore the opening portion 21 is first closed. The cent lock 7 is engaged with the lower mounting screw 10 of the mounting seat 8 (see FIG. 2). Next, the mounting seat 5 of the auxiliary lock device is slightly rotated around the lower mounting screw 9 so that the opening 20 on the side of the upper mounting screw hole 16 is moved to the upper mounting screw 9. Align with position 8 and push it down a little diagonally.

With this, the upper and lower mounting screw holes 16 and 17 of the mounting seat 5 are properly engaged with the mounting screws 9 and 10, and the mounting seat 5 of the present auxiliary locking device is crescent-shaped. It comes to overlap with the mounting seat 8 of the lock 7. After that, the loosened mounting screws 9 and 10 may be tightened, and the auxiliary locking device is mounted and fixed (see FIG. 1).

The operating state of the present auxiliary lock device attached as described above is the same as the conventional one, and when the window is closed and the crescent lock 7 is locked, the knob portion 12 is in the upper position. Therefore, the cylinder lock 2 of the present auxiliary lock device is lowered along the saw-shaped portion 3 of the latching main plate 1 so that the lower engaging recess 11 is engaged with the knob portion 12 of the crescent lock 7 from above. Good.

As a result, the locking piece 13 provided on the cylinder lock 2 elastically engages with the serrated teeth 4 at that position, so that the cylinder lock 2 is prevented from sliding upward. Therefore, the engagement recess 11 of the cylinder lock 1 is engaged with the knob 12 of the crescent lock 7, and the state in which the rotation of the crescent lock 7 is stopped is maintained. After that, if the duplicate key is removed, even if a person who does not have the duplicate key 14 tries to rotate the knob portion 12, it cannot be rotated, and the unlocking of the crescent lock is prevented.

To unlock the crescent lock 7, the rotor of the cylinder lock 1 is turned by the compound key 14, and the cam portion 15 disengages the locking piece 13 from the serrated teeth 4 against elasticity, so that the cylinder lock 1 is unlocked. 2 becomes slidable. When the engaging recessed portion 11 of the cylinder lock 2 is raised to a position where it is disengaged from the knob portion 12 of the crescent lock 7, the locking piece 13 elastically engages the sawtooth tooth 4 at that position and the cylinder lock 2 is locked. Latch at that position (see Figure 3). With this, the crescent lock 7 can be rotated by holding the knob portion 12 and can be unlocked.

[0018]

【Example】

 FIG. 1 shows an embodiment of an auxiliary lock device for a crescent lock according to the present invention, which comprises a locking main plate 1 and a cylinder lock 2 slidably attached to the locking main plate 1.

The latching main plate 1 has a vertically long plate shape, and an upper half portion thereof is a sawtooth portion 3 having a large number of obliquely downward sawtooth teeth 4 on its side edges, and a lower half portion thereof is a window frame body. 6 is a mounting seat portion 5 which can be superposed on a mounting seat portion 8 of a crescent lock 7 which is screwed to the mounting screw 9 and 10.

In the cylinder lock 2, the serrated portion 3 of the main locking plate 1 is vertically slidably inserted in the gap between the back surface of the rotor case 22 and the back plate 23. A lower portion of the rotor case 22 is provided with a fork-shaped engaging recess 11 capable of engaging the knob portion 12 of the crescent lock 7 from above when the cylinder lock 2 is lowered, and a rear surface of the rotor case 22 has a V-shaped cross section. There is provided a locking piece 13 which is made of a spring steel plate and whose one side piece is biased toward the sawtooth 4 side to be engaged and locked. The locking piece 13 is temporarily detachable from the serrated teeth 4 by an eccentric cam portion 15 provided on a rotor that can be rotated by a compound key 14.

Then, in the mounting seat portion 5 of the hanging main plate 1, two upper and lower portions are provided corresponding to the upper and lower two mounting screw holes 18 and 19 provided in the mounting seat portion 8 of the crescent lock 7. Holes 16 and 17 for mounting screws are formed in the. The mounting screw holes 16 and 17 of the mounting seat portion 5 are not simply round holes or elongated holes, but the upper mounting screw hole 16 has an opening 20 to the side of the mounting seat portion 5. In addition, the lower mounting screw hole 17 is formed in a long hole shape having an opening 21 communicating with the lower side of the mounting seat 5.

In the figure, 24 is a locking piece holding pin, and 25 is a back plate fixing pin.

[0023]

[Effect of device]

 As is clear from the above, the auxiliary locking device for the crescent lock according to the present invention is mounted by using two mounting screws for fixing the crescent lock to the window frame body. Without it, it can be attached to the window frame together with the crescent lock, so that not only the contractor but also the layman can easily and quickly perform the attachment work.

That is, although some of the conventional auxiliary lock devices for crescent locks are mounted by using the mounting screws for the crescent locks, the mounting screws are once removed from the mounting seat of the crescent lock, and then the auxiliary lock is performed. It was necessary to overlap the mounting seat of the device with the mounting seat of the crescent lock, insert the mounting screws into the mounting screw holes of both, and screw it onto the window frame. Therefore, not only an amateur, but also a construction contractor took time to install it.

However, in the auxiliary locking device according to the present invention, two upper and lower mounting screw holes are formed corresponding to the mounting screw holes of the mounting seat portion of the crescent lock, and the mounting screw holes of the upper stage are used. An opening is formed obliquely downward in the hole, and an opening downward is formed in the mounting screw hole in the lower stage.

Therefore, when installing the auxiliary locking device, it is not necessary to temporarily remove the mounting screw of the crescent lock, and by simply loosening the screw, the auxiliary lock is inserted into the gap between the mounting seat of the crescent lock and the window frame. Insert the mounting seat of the device, and engage the mounting screw's mounting seat with the lower opening and side opening of the mounting screw hole to engage the mounting seat of this auxiliary locking device. It can be overlapped with the mounting seat of the lock, and the mounting screw can be engaged with the mounting screw hole.

Therefore, unlike the conventional case, the present auxiliary lock device does not need to remove the mounting screw of the crescent lock all at once, but simply loosens the screw and then tightens the auxiliary lock device to integrate the crescent lock with the window frame. It can be attached to the body, and it can be easily and quickly installed by laymen as well as contractors.

[Brief description of drawings]

FIG. 1 is a front view showing an auxiliary lock state of an embodiment of an auxiliary lock device for a crescent lock according to the present invention.

FIG. 2 is a front view showing a state of a latch main plate when the auxiliary lock device shown in FIG. 1 is attached.

FIG. 3 is a partially cutaway rear view when the cylinder lock is raised by the auxiliary locking device shown in FIG. Drawing reference numeral 1-Main plate for latching 2-Cylinder lock 3-Sawtooth portion 4-Sawtooth tooth 5-Mounting seat portion 6-Window frame body 7-Crescent lock 8-Mounting seat portion 9-Mounting screw 10-Mounting Screw 11-engaging recess 12-knob portion 13-locking piece 14-lock key 15-cam portion 16-mounting screw hole 17-mounting screw hole 18-mounting screw hole 19-mounting screw hole 20-opening 21-opening Part 22-Rotor case 23-Back plate 24-Locking piece holding pin 25-Back plate fixing pin

Claims (1)

[Scope of utility model registration request] 1. An upper half portion is a serrated portion 3 having a large number of serrated teeth 4 on a side edge, and a lower half portion can be attached to a window frame body 6 integrally with a mounting seat portion 8 of a crescent lock 7. It is composed of a vertically long latching main plate 1 having a mounting seat 5, and a cylinder lock 2. The cylinder lock 2 is provided with the cylinder lock 2 slidably in the sawtoothed portion 3 in a vertically slidable state. Crescent lock 7 knob 12
So that the cylinder lock 2 cannot be rotated, the engaged recess 11 at the lower part of the lowered cylinder lock 2 is engaged, and the locking piece 13 provided on the cylinder lock 2 engages with the serrated teeth 4 to raise the cylinder lock 2. In the auxiliary lock device for the crescent lock, the lock main plate 1 is unlocked by locking the lock piece 13 by the operation of the duplicate key 14 to unlock the cylinder lock 2 by moving the lock key 13. In the mounting seat portion 5 of FIG. 2, two upper and lower mounting screw holes 16 and 17 are formed corresponding to the mounting screw holes 18 and 19 of the mounting seat portion 8 of the crescent lock 7, and the mounting screw of the upper stage of the mounting screw holes 16 and 17 is formed. An auxiliary locking device for a crescent lock, characterized in that an opening 20 is formed obliquely downward in the use hole 16 and an opening 21 is formed in the lower mounting screw hole 17 in the lower stage.