JP4178292B2 - Thread groove obturator for lock box - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a screw groove closing tool (hereinafter simply referred to as a closing tool) for a lock box, and in particular, can easily close the screw groove of the lock box with a simple structure, thereby improving the safety of the lock. It relates to a possible obturator.
[0002]
[Prior art]
For example, as shown in FIG. 1, the cylinder lock 2 that houses the cylinder lock 1 protrudes out of the door surface through the side plate of the lock box 3 and the door 4. The protruding portion is covered with the decorative ring 5.
[0003]
Incidentally, the cylinder cylinder 2 itself is fixed to the lock box 3 via mounting blocks 10 and 10 formed on the outer peripheral surface of the opening edge portion and mounting rods 6 and 6 penetrating the lock box 3.
[0004]
Therefore, in some types of high-grade doors, an escation (decorative seat plate: not shown) may be mounted instead of the decorative ring.
[0005]
This escation is usually a vertically long plate material, and its surface is decorated with sculpture or the like, and is mounted so that it can be called from the indoor side to the outer surface of the door with a mounting screw.
[0006]
[Problems to be solved by the invention]
However, the dimensions of the lock box 3 and the position of the escation mounting screw are substantially fixed, and the position of the mounting screw is such that the upper end of the raw hat box 3 is given up as shown in FIG.
[0007]
Therefore, as shown in FIG. 2, in order to avoid interference with escation mounting screws, screw grooves 7 are formed in the ceiling plate 3a of the lock box 3, and screw holes 8 are formed in the upper ends of the side plates 3b of the lock box. These screw grooves 7 and screw holes 8 are not necessary for a lock box for doors using a decorative ring.
[0008]
In FIG. 2, the screw hole 8 is semicircular, but depending on the position of the mounting screw, there is a rectangular screw hole or a U-shaped one.
[0009]
However, separately manufacturing a lock box having the same mechanism but having a screw groove 7 and a screw hole 8 for mounting screws separately causes an increase in cost and is also controlled. Therefore, screw grooves and screw holes are also formed in the lock box for the door to which the decorative ring is attached.
[0010]
However, as shown in FIGS. 1 and 2, since the screw groove 7 and the screw hole 8 are opened near the dead cam 9 for operating a locking member such as a dead bolt, the tip of the wire having a special shape is provided. Is inserted into the lock box 3 from the screw groove 7 through the gap between the cylinder cylinder 2 and the opening of the door 4, and a dead bolt is pulled by pulling this, so that unauthorized unlocking is not impossible, Therefore, there is an inconvenience that the security property of the lock is lost.
[0011]
It should be noted that this unauthorized unlocking method has a problem in crime prevention when it is made public, and is described in the registered utility model gazette according to utility model registration No. 3080899, and therefore, description thereof is omitted here.
[0012]
An object of the present invention is to provide an obturator having a simple structure for closing the screw groove and screw hole for attaching an escation of the lock box.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a main body having a size that covers a screw groove that is cut out in the width direction of the ceiling plate of the lock box, and projects from the front end of the main body, and is tapered and has a width of the screw groove. A first locking piece smaller than that and a second locking piece formed integrally and perpendicularly to the rear end edge of the main body, and the length of the main body in the front-rear direction is substantially the same as that of the screw groove. The second locking piece penetrates the side of the lock box with the first locking piece inserted through the screw hole from the inside and protruded to the outside, and the main body part joined to the inner surface of the ceiling plate. And it is set so that it may contact | abut to the attachment block of the cylinder cylinder fitted in the lock box.
[0014]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
3 to 5, reference numeral 11 denotes the entire obturator according to the present invention, and the obturator 11 is large enough to cover the screw groove 7 (see FIGS. 2 and 6), for example, a rectangular main body 12. It has.
[0015]
At the center of the front end edge (upper end edge in FIG. 3) of the main body 12, a first locking piece 13 having a tapered shape such as a horizontal projection having a tapered shape and a width smaller than that of the thread groove 7 is integrally projected. It is installed.
[0016]
Further, for example, a rectangular second locking piece 14 is formed integrally and vertically on the rear end edge of the main body 12.
[0017]
Various methods of manufacturing the obturator 11 having the main body portion 12 and the first and second locking pieces 13 and 14 can be considered. In the illustrated embodiment, for example, a thin and elongated stainless steel strip is shown in FIG. As shown in the figure, the obturator 11 is molded by pressing so that the cross-section is L-shaped and the cross-section of the second locking piece 14 is flat.
[0018]
As described above, the significance of forming the second locking piece 14 so as to be slightly inflated is that when the obturator is fixed by the cylinder cylinder mounting block 10 (see FIG. 1), the mounting block 10 is fixed. This is because the second locking piece slides well to facilitate the insertion of the mounting block.
[0019]
In the illustrated embodiment, slanted sleeve plates 15 are integrally attached to both side edges of the main body 12, and the function of the sleeve plates 15 will be described later.
[0020]
As shown in FIGS. 6 to 8, the obturator 11 according to the embodiment of the present invention configured as described above is arranged with the first locking piece 13 first before the lock box 3 is attached to the door. It is inserted into the cylinder tube insertion hole 16 opened in the side plate 3b of the lock box.
[0021]
Incidentally, the cylinder tube insertion holes 16 are symmetrically opened on both side plates of the lock box 3 so as to correspond to the left and right sides of the door, so that either of the insertion holes 16 may be inserted.
[0022]
Then, the first locking piece 13 of the obturator is engaged with the screw hole 8 of one side plate from the inside of the lock box, and the obturator 11 is further inserted into the lock box using these engagements as a guide.
[0023]
At this time, the first locking piece 13 may be formed with a slight inclination so that the first locking piece 13 can easily find the screw hole 8 (see FIGS. 4 and 8).
[0024]
In the lock box in the illustrated embodiment, as shown in FIGS. 7 and 8, a pair of support columns 17 and 17 for reinforcement are implanted in the vicinity of the thread groove 7, so that the obturator 11 is attached to these lock boxes. When inserted between the sleeves, the sleeve plates 15 and 15 can be guided to smoothly pass between the columns.
[0025]
Eventually, the main body 12 is joined to the ceiling plate of the lock box from the inside, and the front end edge of the main body 12 is inserted into the lock box so as to be joined to the side plate.
[0026]
At that time, as shown in FIG. 7, the lower end edge of the second locking piece 14 is aligned with the upper part of the opening end edge of the cylinder tube insertion hole 16.
[0027]
In this state, after the lock box 3 is inserted into the door from the free side edge and fixed, the cylinder cylinder 2 is opened from the hole (not shown) opened on the outer surface of the door to the cylinder cylinder insertion hole 16 opened on the side surface of the lock box. Fit.
[0028]
Then, as apparent from FIGS. 7 and 8, the second locking piece 14 of the obturator comes into contact with the outer surface of the mounting block 10 of the cylinder cylinder, so that the obturator 11 is connected to the screw hole 8 of one lock box side plate. In the state straddling between the mounting block 10 of the cylinder cylinder inserted in the other lock box side plate, it is securely mounted in the lock box.
[0029]
Further, since the front and rear edges (second locking pieces) of the main body are in contact with the inner surface of the side plate of the lock box, the rotation of the obturator 11 in the horizontal plane is also prevented.
[0030]
At this time, as apparent from FIG. 7, the screw hole 8 in one side plate of the lock box is closed by the second locking piece 14, but a little opening remains in the other screw hole (see FIG. 8).
[0031]
However, since the first locking piece 13 is also eaves in this opening, the aforementioned wire cannot be inserted into the lock box.
[0032]
【The invention's effect】
As is apparent from the above description, the present invention includes a main body portion that is large enough to cover the screw groove, a first locking piece that projects from the front end of the main body portion and is tapered and smaller in width than the screw groove. A second locking piece formed integrally and perpendicularly to the rear end edge of the main body, and the length of the main body in the front-rear direction is set substantially the same as that of the thread groove, and the first locking piece The second locking piece penetrates the side surface of the lock box and is fitted in the lock box with the screw hole inserted from the inside to protrude outward and the main body part joined to the inner surface of the ceiling plate. Since it is set to abut against the mounting block of the cylinder cylinder, the obturator is securely strung between the screw hole of one lock box side plate and the cylinder cylinder fitted to the other lock box side plate. It can be installed and has the expected effect of closing the thread groove.
[0033]
In addition, the obturator can be mounted simply by inserting it into the lock box in a predetermined posture, and is fixed by engaging with the cylinder cylinder, so that it is easy to mount and requires additional work such as screwing. There are various effects such as no.
[Brief description of the drawings]
FIG. 1 is a diagrammatic sectional view showing an example of attachment of a cylinder lock.
FIG. 2 is a side view showing an example of the structure of a lock box.
FIG. 3 is a plan view of an obturator according to one embodiment of the present invention.
FIG. 4 is a partial cross-sectional side view thereof.
FIG. 5 is a rear view thereof.
FIG. 6 is a plan view of a lock box equipped with an obturator according to one embodiment of the present invention.
FIG. 7 is a partial cross-sectional side view showing other members omitted for clarity.
FIG. 8 is a partial cross-sectional rear view, and other members are omitted for clarity of the drawing.
[Explanation of symbols]
3 lock box 3a ceiling plate 3b side plate 7 screw groove 8 screw hole 10 mounting block 11 obturator 12 body part 13 first locking piece 14 second locking piece 15 sleeve plate 16 cylinder cylinder insertion hole 17 column

Claims (1)

A main body having a size that covers a screw groove that is cut out in the width direction of the ceiling plate of the lock box, a first locking piece that projects from the front end of the main body, is tapered and has a width smaller than that of the screw groove, and the main body A second locking piece formed integrally and perpendicularly to the rear edge of the portion, and the length of the main body in the front-rear direction is set to be substantially the same as that of the thread groove, and the first locking piece is A cylinder cylinder in which the second locking piece penetrates the side surface of the lock box and is inserted into the lock box with the screw hole inserted through and protruding outward and the main body part joined to the inner surface of the ceiling plate. A thread groove closure device for a lock box, which is set so as to abut against the mounting block.

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