JP3094071U - Door unlocking bracket - Google Patents

Abstract

(57) [Summary] [Problem] To provide a simple and functional door unlocking metal fitting which can prevent the door from being unlocked without removing the lock or requesting a specialist. SOLUTION: A pair of two male and female metal plates forming a C-shape is provided as a set, and one of the metal plates has engagement pieces 2, 2 of which outer halves at both ends are cut off from an end by a certain length. A male engaging plate 5 having concave portions 3 and convex portions 4 provided alternately on the outer side of the male engaging plate 5.
Engaging piece 2, which is cut out to the same width and length as the engaging piece 2,
2 is a pair of a female engaging plate 6 provided with a concave portion 3a and a convex portion 4a, which fits into the concave and convex portion 4 provided on the engaging piece 2 of the male engaging plate 5, and prevents unauthorized unlocking. The metal fitting 1 is configured.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention is simple and can be used to prevent the opening of bypass locks in homes and offices. And functional tamper-proof metal door locks.

[0002]

[Prior art]

  In recent years, crimes for illegally unlocking doors of residences and offices and stealing metal items have increased particularly recently. Yes, it has been widely covered in the media to call attention.

[0003]   One of these methods of tampering is to use a lock with a keyhole shaped like a dogleg, A tampering lock that is a picking target for a disk cylinder lock is widely known. . This is a special device that is inserted into the keyhole to unlock without damage. It has spread nationwide including.

[0004]   As a security measure, replace it with a dimple lock or other lock that does not have a keyhole shape. Also, the security device that the buzzer sounds by sensing the vibration when unlocking is installed inside the door. Various types of security equipment that can be attached and dealt with are also provided, and these pickings have recently become available. The number of unauthorized unlocking is also decreasing.

[0005]   However, since recently, criminals have been using a new method of illegal unlocking. Has become. The method is the same regardless of the keyhole shape of the lock located on the outside of the door In the type covered with a cylinder collar protruding at a certain height, the cylinder -Insert a special device into the gap created by pinching the collar and pulling it inside. By-pass unlocking or cam feed unlocking by operating the cam (hereinafter referred to as bypass unlocking) ) Is said to have been the damage caused by an unlawful open lock.

[0006]   As a measure to prevent this bypass unlocking, replace the lock with another type as described above. In many cases, it is possible to deal with it by bypassing it, but for bypass unlocking prevention as shown in Fig. 5 Products for the purpose are also provided.

[0007]   The technology is a spacer made by processing a metal plate of appropriate thickness into a donut shape, Insert the spacer into the gap of the cylinder collar of the lock located on the outside of the door It is a crime prevention device that can prevent the above-mentioned bypass unlocking by closing with.

[0008]

[Problems to be solved by the device]

  The above-mentioned door unlocking prevention device and crime prevention device are provided, and each has a certain effect. Is getting However, the preventive measures, crime prevention measures, and countermeasures described above are as follows. There were such inconveniences and shortcomings.

[0009]   First, in addition to picking, which has been common for a while, the number of bypass unlockers that has recently increased The method of including and replacing with a new lock is good for your own home, If you rent a house, you must get permission from the landlord, and you must also change the lock. In that case, it is troublesome because you have to ask a specialist, and it is rather expensive. There are inconveniences and drawbacks such as high costs.

[0010]   Furthermore, in bypass unlocking, which has been increasing in number recently, such as replacing the lock As described above, there are similar inconveniences. In addition, a spacer to prevent bypass unlocking Although it is provided, if you want to use this ring-shaped spacer to close the gap of the lock, Since it can not be installed as it is structurally, remove the lock itself and then the cylinder -Because it is often impossible for an amateur to set it in the gap between the collars, ask a contractor. And the cost of the components is low, but the installation costs are rather expensive. However, there is an inconvenience and a drawback that nobody can directly and inexpensively install it.

[0011]   Even if there are such inconveniences and drawbacks, the damage caused by illegal unlocking is caused not only by the theft of hardware. However, since most of the recent criminals bring knives with them, even if they do not have to go It is also being reported that it is being bitten and has produced disastrous results, so that Each needs to take some measures.

[0012]

[Means for Solving the Problems]

  The present invention is a bypass unlocking device that overcomes the inconveniences and drawbacks of the conventional technologies described above. We provide a tamper-proof metal fitting that can be used, and its structure is mounted on the door. Attach as a member that closes the gap of the cylinder collar combined with the lock It is easy for the user to do without removing the locks one by one or requesting a specialist. Unauthorized tamper proof that can be installed and is inexpensive and enables reliable bypass tampering prevention Provide a fastener.

[0013]

[Embodiment of device]

  Unauthorized unlocking prevention that is simple and easy to install and supports bypass unlocking The structure of the stopper 1 includes a male engaging plate 5 and a female engaging plate 5 having a C-shaped front surface and having an appropriate thickness. The two plywood 6 can be closed by simply inserting them from above and below the gap C of the cylinder collar B. The tamper-evident metal fitting 1 attached to the engaging piece 2 is Unauthorized unlocking prevention that can be firmly and securely fixed by the recessed concave portions 3 and 3a and the convex portions 4 and 4a. The stopper 1 is constructed, and its embodiment will be described in detail below.

[0014]

【Example】

  An embodiment of the illicit unlocking metal fitting of the present invention is a combination of the perspective view shown in FIG. 1 and FIG. 3 is a perspective view showing a state of the device and a perspective view showing a mounting state of FIG. Description will be given with reference to a side view showing a state in which a stopper is attached.

[0015]   The tamper-proof metal fitting 1 according to the present invention is a front type of a hard metal plate having a thickness of 2 mm to 3 mm. Metal fittings in which the shape is a combination of two metal plates, male and female, which are almost C-shaped, is circular. Is. First, the outer spanning length of both ends, which are C-shaped with a width of about 8 mm, is about 4 In the case of a metal plate of about 5 mm, one of the metal plates is the outer half of both ends. From the outer root of the engaging pieces 2, 2 that are cut out by a certain length from the A male engaging plate 5 in which concave portions 3 and convex portions 4 having a short length are alternately provided is formed, and the other metal plate is formed. Is the same as the engaging piece 2 of the male engaging plate 5 on the inside of both end portions forming the same C shape as described above. The engaging pieces of the male engaging plate 5 are provided inside the engaging pieces 2 and 2 formed by notching the same width and length. 2. The female part which fits into the concave part 3 and the convex part 4 provided in 2 and which is alternately provided with the concave part 3a and the convex part 4a. Two engagements formed by press-cutting the engagement plate 6 and the male engagement plate 5, respectively A tamper-evident prevention fitting 1 including a set of members is configured.

[0016]   With the above-mentioned configuration, the engaging pieces 2 of the male engaging plate 5 and the female engaging plate 6 are The step difference between the concave portions 3 and 3a and the convex portions 4 and 4a to be provided is about 1 mm, and the steps are provided at both ends. The distance between the sides of the recesses 3 and 3a and the sides of the protrusions 4 and 4a facing the male engagement plate 5 side is the end side. It becomes slightly narrower as it goes closer, and the female engagement plate 6 side goes to the end side on the contrary. It is formed to spread. In addition, a C-shaped male engagement plate 5 and a female engagement plate Both ends of 6 are half of the engaging piece 2 from the length of the radius forming a circle when combined. A C-shaped metal plate extended by the length.

[0017]   Since this embodiment has the above-mentioned structure, the gap C of the cylinder collar B of the lock A is When installing to close the unit, simply close it using the procedure shown in the Iloha diagram in Fig. 3. You can First, as shown in the figure, pinch the cylinder collar B and pull it toward you. If the male engagement plate 5 and the female engagement plate 6 of the present invention are inserted from above and below the gap C that can be formed, , It fits in the state that it goes up and down a little as shown in the figure. After that, male engagement plate 5 and female engagement When the plate 6 is strongly tightened using a device such as pump pliers, it will engage and As shown, the gap C of the cylinder collar B can be completely closed. In addition, in this figure Has a pair of tamper-proof lock fittings 1 inserted from above and below, but It can be inserted and installed.

[0018]   Further, the concave portions 3 and 3a and the convex portions 4 and 4a provided on the engaging pieces 2 and 2 at both ends face each other. The male engagement plate 5 is slightly narrowed on the left and right, and the female engagement plate 6 side is widened. Therefore, when they are inserted into the gap of the cylinder collar B from above and below, 4a locks at a certain depth, but if you tighten it tightly with pump pliers etc., The convex portions 4 and 4a described above cross over each other and the concave and convex portions are fitted so that they are fixed.

[0019]   Furthermore, if the type of the gap C of the cylinder collar B is wide, once a set of illegal After attaching the unlocking prevention metal fitting 1, in the same way as shown in FIG. If the stopper 1 is inserted and tightened, it can be easily handled as shown in FIG. In addition, this In the case of, it is better to attach it with the first plate offset.

[0020]   The tamper-evident prevention tool 1 according to the present invention is the embodiment as described above. The material that forms the male engagement plate 5 and the female engagement plate 6 in the Although it is a metal material, it may be a synthetic resin material as long as it has strength comparable to metal. Does not support. The tamper-evident metal fitting 1 has a thickness of 2 to 3 mm, but the gap C is wide. In case of multiple pieces, it corresponds, but even if thicker tamper-proof metal fitting 1 is formed, However, any of them is not particularly limited.

[0021]

[Effect of device]

  Since the present invention constitutes the tamper-proof metal fitting as described above, the following features And provide the effect.   The tamper-proof metal fitting according to the present invention is a C-shaped male engagement plate that is formed independently. Since it is a configuration that combines two female engagement plates with the female engagement plate, there is a gap in the cylinder collar. When installing it on the lock that can be After inserting the male and female engagement plates from the top and bottom, use tools such as pump pliers. Since it can be attached by simply tightening the two engaging plates with Even if you are an amateur, you can easily remove the lock without asking You can close the gap of dark color. In addition, the configuration is simple, so mounting It is easy to construct an unauthorized unlocking prevention metal fitting that can prevent bypass unlocking that has not been seen in the past. To achieve.

[0022]   In addition, the two male and female engaging plates installed in the gap of the cylinder collar are Since it is firmly fixed because it meshes with the convex part, once attached, hit it strongly with a tool. In addition to being unable to remove even if you go, the gap in the cylinder collar Even if the lock is wide, attach multiple pieces by combining 2 mm and 3 mm types It can be closed without any gap. In addition, the shape of the engaging plate is simple and processing is easy. Since it is easy, it is a tamper-evident metal fitting that can be inexpensively and widely provided.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a tamper-proof lock according to the present invention.

FIG. 2 is a perspective view showing a combined state of the unauthorized unlocking metal fittings.

FIG. 3 is a perspective view showing a procedure of an attachment state of the illegal unlocking prevention metal fitting in an Iloha diagram.

FIG. 4 is a side view showing a state in which two unauthorized unlocking metal fittings are attached.

FIG. 5 is a perspective view showing a spacer that is a conventional bypass unlocking prevention device.

[Explanation of symbols]

1: Unauthorized unlocking metal fitting 2 ... Engaging piece 3 ... Recess 3a ... 4 ... convex 4a ... 5: Male engagement plate 6 ... Female engagement plate A ... Tablet B: Cylinder color C: gap

Claims (2)

[Scope of utility model registration request] 1. A metal fitting, which is formed by combining two C-shaped metal plates having a constant width and thickness to form a circular shape, wherein one metal plate has a constant width outside the both ends from the ends. The outer side of the engaging piece formed by cutting out the length of is a male engaging plate in which shallow concave portions and convex portions are alternately provided, and the other metal plate has the inside of both end portions as the engaging piece of the male engaging plate. A pair of the female engaging plate and the male engaging plate, which are provided with concave portions and convex portions having a shape matching the concave and convex portion provided on the male engaging plate inside the engaging piece formed by notching the same width and length. A door unlocking prevention metal fitting characterized by being capable of closing the gap between the cylinder collars of the lock. 2. A structure in which the facing interval between the concave and convex sides provided on the engaging pieces at both ends is narrowed toward the end on the male engaging plate side and widened on the female engaging plate side. A tamper-proof metal fitting for a door according to item 1.