JPH0658026A - Sash lock for theft prevention - Google Patents

Abstract

PURPOSE:To provide a theft-preventive sash lock at a low cost by installing a theft-preventive cover in the lock-fitted part of sash frame, equipping the cover with a groove. threading a wire lock having a dial type key in the groove, and fitting the wire lock in groove stretching along the indoor vertical edge of the cover. CONSTITUTION:A theft-preventive cover 3 in box form is installed in the lock- fitted part 2 of an aluminum sash window 1. A wire 4 having a dial type key is threaded in a groove cut in the cover 3 and threaded along the indoor vertical edge of the cover 3 and the wire lock is installed alongside the indoor vertical edge of the cover 3. This can prevent the lock from being unlocked with a single finger upon breaking the glass to a minor extent and precludes thereby any person from intruding into the house in a short time unprominently on the appearance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sash crime prevention lock attached to a sash window or an aluminum sash of ordinary homes and offices.

[0002]

2. Description of the Related Art Conventionally, according to the method of mounting a crime prevention fence outside a window, even if the crime prevention fence is mounted outdoors, it is relatively easy to remove the fence by screwing it in from the outside. It doesn't work. Further, although there is a movement prevention mechanism of the lock handle attached to the lock portion of the aluminum window, it is possible to easily release the movement prevention mechanism by making a small hole in the glass window.

There is a window opening prevention mechanism attached to the lower part of the inner window frame of the aluminum sash window.
Since the mounting position is almost the same for all aluminum sashes, you can easily break the window glass into small pieces to easily invalidate the sash security lock. As described above, no conventional aluminum sash crime prevention mechanism has a reliable crime prevention function.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and provides a crime prevention device attached to an outdoor security fence, a lock of an aluminum sash window or a lower part of an aluminum sash window frame. As a result of eliminating defects and conducting more intensive research on a more reliable aluminum sash window crime prevention device, a simple cover is attached to the lock part and a dial type wire lock used by a person who spins is used to make the aluminum sash cheap and inexpensive. An object is to provide a window security device, that is, a sash security lock.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above technical problems, and has a substantially box-shaped security cover to be attached to a lock part of a sash frame, Is a structure having a cut groove, and a dial type key wire lock is passed along the groove, and the dial type key wire lock is attached to the groove along the vertical side on the indoor side of the sash frame of the cover. It is a sash security lock characterized by that.

[0006]

According to the sash security lock of the present invention, a substantially box-shaped security cover is attached to the lock part of the aluminum sash window, and the wire is passed vertically through the wire according to the groove cut in the cover. It is a structure in which dial type key wires are passed along the sides and dial type key wire locks are attached along the vertical side on the indoor side of the cover. Therefore, since the lock portion is surrounded by the box-shaped cover, it is not possible to break the glass into small pieces and unlock with one finger. Also, if you break the glass into large pieces, it is easy for passersby and local residents to see it.

[0007] Also, even if the glass is broken into large pieces, and the glass is cut in from the inside and repaired using the glass cut from the inside to try to blind the pedestrians, the cover is dialed if the wire lock is to be unlocked. The section is indoors, and you can't see the numbers, and you have to dial with one hand.
It is even more time-consuming if you rush to worry about passers-by, etc., and it is possible to defeat the intention of invading ordinary households and offices.

Next, the sash crime prevention lock of the present invention will be specifically described by way of examples, but the present invention is not limited thereto.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing a state in which a sash security lock according to the present invention is attached to an aluminum sash window. It is a substantially box-shaped security cover 3 to be attached to the lock part 2 of the aluminum sash window 1, and along with the groove 5 cut in the cover 3, through the wire 4, along the vertical side on the indoor side of the cover 3, the dial Through the wire 4 having the formula key 13,
This is a structure in which a dial-type wire lock is attached along the vertical side of the cover 3 on the indoor side. More specifically, the cover 3 is divided into upper and lower parts 8 and 7, as shown in FIG. 2, the upper cover 8 forms a conical shape 9 with the upper part cut off, and the lower part 7 is a quadrangle. The cut-off quadrangular pyramid 9 is provided with one groove 5 on the diagonal of the lower quadrangle 7 for passing the wire 4, and the apex 9 of the cut-off quadrangular pyramid.
In order to prevent the wire 4 from coming off the groove 5, as shown in the drawings, in particular, as shown in FIGS. 2 (a) and 2 (b),
It is partly a tunnel.

That is, as shown in FIG. 2B, the upper portion 8
The lower quadrilateral part of the quadrilateral has a ceiling 9, but the inner part 6 is hollow so that it can be attached to the front part of the aluminum sash window lock 2 in order to attach both lower parts 6 of the quadrangle at a 90 ° angle to the wire groove 5. It is partly taken. The sash lock portion 2 is located in the hollow portion 6. Further, the wire groove 5 on the truncated pyramid 9 descends as it is, and the groove 5 is formed even at the corner portion of the quadrangular portion. The two upper and lower portions of the groove 5 vertically descending on the window glass side are partly tunnels to prevent the wire from coming off. (Only the upper part,
2 (a) and 2 (b))

The sash crime prevention lock of the present invention is shown in FIG.
As shown in (a), (b), and (c), the lower cover 7 is inserted from below into the upper cover 8 having the square-shaped groove 5, and the upper cover 8 has a groove with a groove. In Figure 2
As shown in (a), (b), and (c), there is a groove 5 for receiving it, and further, at another corner portion of the lower cover 7, FIG.
As shown in (c), the columns 11 and 12 for preventing prying
I have two stands. These two columns 11 and 12 hit the upper cover 8 from below, and the columns 11 are inserted into the inside of the sash lock part 2 and fixed.

On the lower surface of the lower cover 7, the upper cover 8
It is a quadrangular pyramid whose head is cut in the same way as, and the groove 5 through which the wire 4 is inserted is cut in.
Similar to the upper cover 8 (that is, as shown in FIGS. 2A and 2B), the top is a tunnel. Furthermore, it is difficult to insert a screwdriver or the like into the notch for lock handle (the front of the cavity of 6) and the lock tightening notch (the rear of the cavity of 6) opened at the corner of the upper cover 8. As described above, the width is set to the minimum necessary, and the size of the entire integrated portion in which the upper and lower covers 7 and 8 are combined is set to the minimum necessary compact.

As an example of dimensions, the notch portion of the lock handle portion (the front portion of the cavity 6 in FIGS. 2A and 2B) has a width of 30 to 30 mm.
The height is about 40 mm and the height is about 40 mm, and the lock tightening portion notch portion (the inner portion of the cavity 6 in FIGS. 2A and 2B) has a width of 2 mm.
It is about 0 mm and the height is about 40 mm. In addition, the overall dimensions are a width of 30 mm on a surface parallel to the window glass in the square portion, a width of 40 to 50 mm on a surface perpendicular to the glass window, and a height of 70 to 80 m
It will be about m. With this size, it can cover the lock of an aluminum sash.

[0014]

As described above, the above effects can be obtained by the sash crime prevention lock of the present invention. Summarizing them, the following remarkable technical effects are obtained. Before the sash security lock of the present invention, the glass of the aluminum sash lock front mounting portion and the lower part of the aluminum sash window frame is broken into small pieces, and unlocked with one finger, and it is possible to enter the room in a short time in a visually inconspicuous form. I can't.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a state in which a cover for a sash crime prevention lock of the present invention is attached to a lock for an aluminum sash.

FIG. 2 is a schematic perspective view showing the structure and mechanism before the sash crime prevention lock of the present invention.

Claims (1)

[Claims] 1. A substantially box-shaped security cover to be attached to a lock portion of a sash frame, the cover having a groove cut all around the ridgeline, and a dial along the groove. A sash security lock having a structure in which a dial-type key wire lock is installed and the dial-type key wire lock is attached to a groove along a vertical side on the indoor side of the sash frame of the cover.