JP2002004650A - Intrusion preventive implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a preventive implement, light, easily operatable and easily mountable on and demountable from a current door lock quickly anytime for preventing the entry of an intruder while preventing the door lock from being easily unlocked or destroyed by an unwelcome person, if having a duplicate key, or a person having special skill. SOLUTION: This intrusion preventive implement comprises a cover for covering an outside knob of the door lock, in proximity of its root, having the outside knob with a key hole and a knob integrated mounted at its small- diameter root on a door, two wall holes provided in one peripheral wall of the cover and in the other peripheral wall opposite thereto, respectively, so as to view engagement with the outside knob at both sides of the outside knob with the root therebetween, a U-shaped through arm passing through the two wall holes in the range from the outside of the one peripheral wall through the cover to the outside of the other peripheral wall and having circular joint rings respectively provided at two ends on the other side, and an engagement lock for engaging the two joint rings of the through arm in a lock/unlock adaptable manner. Intrusion using the key hole of the outside knob can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illegal intrusion prevention device, and more particularly, to a door lock attached to a door facing the outside such as an entrance or a doorway, which is illegally unlocked with a duplicate key or the like, thereby intruding.
The present invention relates to an illegal intrusion prevention device for preventing intrusion damage caused by a burglar or the like.

[0002]

2. Description of the Related Art Conventionally, doors facing outdoors such as private houses are provided with door locks to prevent illegal intrusion from the outside, and a specific key for opening the door locks is provided. Is owned only by family members or certain people,
When entering and exiting, the door lock is unlocked with a specific key so that the user can enter and exit. However, if you want to prevent theft even if you lose this particular key, or you do not like the intrusion of a particular person with a duplicate key, changing the door lock is time consuming and expensive. There is a problem that it cannot be done immediately.

In recent high-end residential condominiums accommodating a large number of apartments, in addition to door locks at the entrances of condominiums, in order to restrict door-to-door sales inside the condominiums and the free entry and exit of various contractors, The entire entrance is closed and an electric lock is installed on the entrance door of the apartment.
The entrance door can be opened only by the resident who owns the electric lock key or the resident who understands when visiting, and the entrance can be unlocked by the occupant to enter the apartment. .

In some cases, a so-called inverted master key system is used, in which the number of keys is not increased, and the key of the door lock of each house is also used as the key of the electric lock of the entrance of an apartment to be shared. However, when the apartment lock at home is lost, replacing the door lock at home to prevent theft also leads to the replacement of the electric lock at the apartment, which is not easy and costly in terms of cost. There is also. Also, recently, it has been said that certain types of door locks can be easily pryed into a burglar of special technology without a key, and the damage is increasing.

[0005] Therefore, the present invention, even if you have a matching key,
Things that residents do not want or those with special skills can be prevented from being easily unlocked or broken, and the protective device is lightweight, easy to operate, easily and always quickly It is intended to be able to be attached and detached and to prevent illegal intruders from entering.

[0006]

Means for Solving the Problems The present inventors examined the characteristics of the shape, size and performance of various types of entrance locks and self-locking tablets, the state of use of entrance locks, and various methods of illegal unlocking. Various studies have been made on the shape, strength, fracture resistance, simplicity and ease of operation, etc. of the jig for prevention, and it has been found that such problems can be solved, and the present invention has been completed.

That is, a jig for preventing unauthorized entry of the present invention is provided with a cover covering the outer knob to the vicinity of the base with respect to a door lock in which a small diameter base of the outer knob integrated with a keyhole and a knob is attached to a door; Two wall holes provided in the peripheral wall on one side of the covering body and on the other peripheral wall facing the peripheral wall, respectively, so as to see through the positions engaging with the outer knob on both sides enclosing the root of the cover. A U-shaped penetrating arm which penetrates the two wall holes from the outside of the one peripheral wall through the inside of the coating to the outside of the other peripheral wall, and is provided with an annular coupling ring at each of two other ends on the other side; And an engaging lock which can be locked and unlocked by being engaged with two connecting rings of the penetrating arm to prevent unauthorized intrusion using the keyhole of the outer knob. .

[0008] The coating of the present invention is characterized in that it is made of a metal plate that is difficult to cut and break. Further, the penetrating arm of the present invention is made of a metal wire that is difficult to cut and break. Further, the engagement lock of the present invention is a lock having an arm that engages with two coupling rings.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The cover of the present invention may be cylindrical, square, polygonal or hemispherical, as long as it covers the outer knob of a door lock, and its outer peripheral edge extends close to the base. It should just be. Preferably, it is cylindrical or square.
In addition, the material of the covering is difficult to be cut for the purpose of the tool,
Any material can be used as long as it is not easily broken, and may be aluminum alloy or steel. Preferred are steel, stainless steel, alloy steel, and hardened steel.

[0010] The two wall holes in the present invention are provided on one side of the covering body and opposed to the surrounding wall so that the position where the penetrating arm engages with the outer knob can be seen on both sides enclosing the base of the outer knob. In other words, the outer peripheral wall may be located at a position closer to the root than the maximum outer diameter position of the outer knob and smaller in diameter than the maximum outer diameter. As a result, the penetrating arm penetrating the wall hole is engaged with the outer knob.

The position of the wall hole in the peripheral wall of the cover may be any position as long as the penetrating arm penetrating the wall hole engages with the outer knob as described above, but preferably the outer diameter is smaller than that of the outer knob. It is in a position where the position near the outer periphery of the root of the significantly smaller outer knob can be seen. Thus, the penetrating arm passes near the root of the outer knob and largely engages with the outer knob. The shape of the wall hole may be any shape as long as the through arm and the coupling ring can pass therethrough, and may be circular or elliptical. Considering the breaking strength of the coating, an oblong shape that is small in the circumferential direction and long in the height direction is preferable.

The penetrating arm of the present invention may be a U-shaped penetrating arm extending from the outside of the two wall holes of the one peripheral wall of the covering to the outside of the two wall holes of the other peripheral wall through the covering. The shape may be circular, square or rectangular. The material of the penetrating arm may be any material that is hard to be cut or broken, and is preferably steel, stainless steel, alloy steel, or hardened steel.

The connecting ring at the end of the penetrating arm may be one in which the end of the penetrating arm is bent and fixed, or the one in which an annular connecting ring is fixed to the end. Is preferred. Further, since the penetrating arm penetrating the cover is engaged with the outer knob, the cover maintains the whole state including the keyhole of the outer knob. Therefore, the key cannot be inserted into the keyhole and unlocked without removing the cover.

The engaging lock according to the present invention may be any one that can be locked or unlocked by engaging two connecting rings at the ends of the penetrating member which are separated from each other. For example, a padlock, a cylinder padlock, a warehouse lock, a bar lock, or the like, a U-shaped so-called neck (neck) which is an arm for engagement, or a lock with a hanging (hanging) bar, etc. Anything similar to the above may be used.
Locking / unlocking may be performed by a key, but may be performed by a three- or four-stage dial-type lock, a letter-locking lock, or a ten-key type digital lock type, which does not cause loss. Dial-type padlocks are preferred because they are easy to operate.

[0015]

EXAMPLES The present invention will now be described specifically with reference to examples, but the present invention is not limited to these examples. First, Example 1 of the burglarproof device of the present invention is shown in FIGS.
This will be described below. In FIG. 1, reference numeral 10 denotes a device for preventing unauthorized entry of the present invention. Reference numeral 12 denotes a door lock having an outer knob 16 in which a keyhole 14 and a knob are integrally formed. The door lock 12 attaches a small-diameter base 17 of the outer knob 16 to an entrance door 20 through a disc-shaped circular seat 19. Have been. Here, the maximum outer diameter of the outer knob 16 is 50 mm, the outer diameter of the top 16a and the bottom 16b is 40 mm, and the height from the top to the bottom is 4 mm.
5 mm, root 17 has an outer diameter of 28 mm, and root height is about 1
0 mm.

The illegal intrusion prevention device 10 is provided at a specific position, which will be described later, on a coating cylinder 22 which is a cylindrical coating covering the entire outer knob 16 of the door lock 12 up to the vicinity of the base 17 and a peripheral wall 23 of the coating cylinder. U-shaped penetrating arm 27 penetrating through each of the two wall holes 24, 25 from the outside of the coating cylinder 22 and two annular coupling rings 28 fixed integrally to the end 27 a of the penetrating arm. It has a bar 29 and a one-sided lock 30 which is an engagement lock having an arm 30a which closes to connect with the bar 29.

Here, the coated tube has a rust-preventive effect and is
Made of hard-to-break stainless steel, 60m inside diameter
m, the height is 60 mm, and the peripheral end covers the root 17. Further, the one-sided lock 30 is constituted by a bar 29 which engages with the coupling ring and an arm 30a which opens and closes only on one side.
And a three-stage dial 33 for locking and unlocking.

The wall holes 24 and 25 are provided at the base 1 of the outer knob 16.
7 so as to see the position of engagement with the bottom 16b of the outer knob 16 on both sides of the base and near the base, the peripheral wall 23a on the upper side of FIG.
2 is provided on the other side facing the peripheral wall 23, that is, on the lower cylindrical wall 23b in FIG. Therefore,
A later-described penetrating arm 27 can penetrate both wall holes 24 and 25.

Here, the two wall holes 24 and 25 have a circumferential distance of 33 mm between the centers of the holes on the peripheral wall.
It penetrates both sides of the root 17 having an outer diameter of 28 mm. The circumferential width of the wall holes 24 and 25 is about 6 mm.
The height is about 10 mm and the coupling ring 28 can pass through. The penetrating arm 27 has a diameter of 3 which is difficult to break or break.
mm, the connecting ring at the two lower ends has an outer diameter of 7 mm and a width of 3 mm. The two arms 27b and 27c of the U-shaped penetrating arm respectively pass through two wall holes 24 from the upper outer side of the coating tube, pass through both sides near the root 17, and pass through the lower two wall holes 25, respectively, It penetrates to the outside of the coating cylinder. And two arms 27 of the penetrating arm 27
b and 27c are adapted to engage with the bottom 16b of the outer knob having an outer diameter of 40 mm on both sides of the root 17.

Next, attachment and detachment of the illegal intrusion prevention device 10 will be described. First, the illegal intrusion prevention device 10
Separates the covering cylinder 22, the penetrating arm 27, and the one-way lock 30. Next, the coating cylinder 22 is sufficiently covered from the outside of the outer knob 16 integral with the keyhole 14 of the door lock 12 attached to the door 20 to the base 17 of the outer knob. Then, the two coupling rings 28 at the lower ends of the two arms 27b and 27c of the penetrating arm 27 are inserted into the two wall holes 24 at the upper part of the covering cylinder, respectively, and pass through both sides of the root 17, and the two lower holes 2
5 are inserted so as to penetrate to the outside. Further, the arm 30a of the one-way lock 30 is opened in the coupling ring 28, and after passing through the bar 29, the arm is closed and the dial 33 is turned to lock.

Since the covering cylinder 22 covers the keyhole 14 of the outer knob and is made of a stainless steel alloy which is extremely difficult to cut and break, even if it has a duplicate key, it has a special technique. However, an illegitimate person who cannot unlock with the dial 33 cannot unlock the one-sided lock, cannot unlock the door lock, of course, and cannot enter. Therefore, it is possible to prevent an illegal intruder from entering.

When unlocking, the number of the dial 33 of the one-sided lock is adjusted and unlocked, the arm 30a is opened, the bar 29 is removed from the coupling ring 28, and the penetrating arm 27 is further removed from the wall holes 25 and 24. The door lock 12 can be unlocked with a key by pulling it upward and removing the coating cylinder 22 from the outer knob. Locking and unlocking of the burglarproof device 10 is extremely simple and easy, and can be operated quickly.

[0023]

As described above, according to the present invention,
Even if you have a duplicate key, you can prevent things that the resident does not want or those with special skills from easily unlocking and breaking, and the protective equipment is lightweight, easy to operate, easy to use It can be quickly attached to and removed from the current door lock at any time, preventing illegal intruders from entering. In addition, if the occupant sets the illegal intrusion prevention device 10 of the present invention with the door open as described above, then closes the door and locks from the inside of the room, the illegal intrusion from the outside is more reliably prevented. And the occupants' sense of security is further increased.

[Brief description of the drawings]

FIG. 1 is a front view of a device for preventing unauthorized entry of the present invention.

FIG. 2 is a side view of the illegal intrusion prevention device shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Unlawful intrusion prevention device 12 Door lock 14 Keyhole 16 Outer knob 17 Root 20 Door 22 Coating cylinder (Coating body) 23 Peripheral wall 24, 25 Wall hole 27 Penetrating arm 28 Coupling ring 30 One-sided lock (engagement lock).

Claims (4)

[Claims] A cover for covering the outer knob to the vicinity of the base with respect to a door lock in which a small-diameter base of the outer knob integrated with the keyhole and the knob is attached to the door; Two wall holes provided on one peripheral wall of the covering body and the other peripheral wall facing the peripheral wall, respectively, so that a position of engagement with the outer knob can be seen through. A U-shaped penetrating arm penetrating from the outside of the peripheral wall to the outside of the peripheral wall on the other side through the inside of the coating, and provided with an annular coupling ring at the other end, and two coupling rings of the penetrating arm An illegal intrusion prevention device comprising: an engagement lock that can be engaged and locked and unlocked, and prevents unauthorized intrusion using a keyhole of the outer knob. 2. The illegal intrusion prevention device according to claim 1, wherein the cover is made of a metal plate that is difficult to cut and break. 3. The illegal intrusion prevention device according to claim 1, wherein the penetrating arm is made of a metal wire that is difficult to cut and break. 4. The illegal intrusion prevention device according to claim 1, wherein the engagement lock is a lock having an arm engaged with two coupling rings.