JP3064601B2 - Sealing key - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing key inserted into a keyhole of a cylinder. The keyhole of the cylinder for locking and unlocking is sealed with this kind of key.

[0002]

2. Description of the Related Art Conventionally, a cylinder lock is generally widely used as a lock attached to a door or the like. By the way, when the key for unlocking / unlocking is lost or stolen, it is necessary to replace the lock, but in the meantime, there is a possibility that the lock is unlocked by another person.

[0003] In addition, there has been an accident in which a driver or the like is forcibly pushed into a keyhole to be illegally unlocked, and a cylinder lock which is safer than crime prevention is demanded. Is difficult to realize.

According to past data, it takes about 3 minutes for an unauthorized intruder to open a lock and enter the system.
If more time is required, it is determined that the entry is difficult, and the illegal entry is abandoned. Therefore, at least about 3
There is a demand for a structure that requires minutes.

Therefore, a so-called double lock structure in which two locks are attached to one door is adopted.

[0006]

However, in recent years, malicious mischief such as inserting a foreign substance such as gum into a keyhole to make a lock unusable has been increasing.
There is a demand for a structure that is difficult to mischief.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to seal a keyhole only by inserting the keyhole into a keyhole of a cylinder lock, thereby preventing a situation in which the keyhole is unlocked or a foreign object is inserted. Another object of the present invention is to provide a sealing key capable of obtaining the same effect as a double lock.

[0008]

In order to achieve the above-mentioned object, a sealing key according to the present invention is configured as follows. The sealing key of the first invention is composed of two key members 20, 24.

The key member 20 is a cylinder 1 for locking and unlocking.
0, a groove 16 continuously formed from the base end to the tip along the central axis of the cylinder insert 14, and a cylinder insert 14 formed at the tip of the cylinder insert 14, And a protruding piece 18 that protrudes from

The key member 24 has a plug 22 which is inserted into the groove 16 of the cylinder insert 14 inserted into the keyhole 12 and pushes the projecting piece 18 outside the exit of the keyhole 12.

Next, the sealing key according to the second invention is composed of two key members 2.
0 and 24. The key member 20 includes a cylinder insert 14 inserted into the keyhole 12 of the cylinder 10 for locking and unlocking, a groove 16 formed continuously from the base end to the tip along the central axis of the cylinder insert 14, A bent piece 26 formed at the tip of the inserter 14 and bent outward;
It has.

The key member 24 is fitted into the groove 16 of the cylinder insert 14 and
2 and a projection 3 formed at the tip of the fitting 28 and fitted to the bent piece 26 of the cylinder insert 14.
0.

[0013]

In the first invention, the insert 22 is inserted into the groove 16 of the cylinder insert 14 inserted into the keyhole 12. As a result, the projecting piece 18 at the tip of the cylinder insert 14 is
Since it is pushed out of the exit, it cannot be pulled out from the keyhole 12.

In the second invention, the groove 1 of the cylinder insert 14 is
6 is fitted into the keyhole 12 with the key members 20 and 24 overlapping each other. When the key member 24 is pulled after the keyhole 12 is inserted, the protrusion 30
As a result, the bent piece 26 at the tip of the cylinder insert 14 is pushed out of the exit of the keyhole 12, so that it cannot be removed from the keyhole 12.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show the overall configuration of the first embodiment. A sealing key is formed by superposing two key members 20, 24.

The key member 20 has the cylinder insert 14 of the knob 32 as shown in FIG. 3, and the cylinder insert 14 side of the knob 32 is bent in a crank shape as shown in FIG.

A groove 16 is formed in the cylinder insert 14 so as to extend from the base end to the distal end along the central axis, and the distal end of the cylinder insert 14 has projecting pieces 18 and 1 protruding outward.
8, and locking pieces 34, 34 protruding inward.

The key member 24 has a knob 32 and a plug 22 as shown in FIG. 4, and the plug 22 is inserted into the groove 16 of the cylinder insert 14 inserted into the keyhole 12. Plugged in. In addition, the cross-sectional shape of the insert 22 is variously shaped according to the keyhole of the cylinder lock.

FIG. 5 illustrates the operation of the first embodiment. As shown in FIG. 5A, the cylinder insert 14 of the key member 20 is inserted into the keyhole 12 of the cylinder 10 for locking and unlocking. You.

Next, as shown in FIG.
Key member 2 into groove 16 of cylinder insert 14 inserted in
The fourth insert 22 is inserted.

When the insert 22 is inserted into the groove 16 of the cylinder insert 14 as shown in FIG.
It is pushed out of the exit. Therefore, it is impossible to remove the key member 20 from the keyhole 12 and the key member 2
At 0 and 24, the keyhole 12 is sealed.

As described above, according to this embodiment, the cylinder insert 1 of the key member 20 is inserted into the keyhole 12 of the cylinder 10.
4 and insert the key member 24 into the groove 16 of the cylinder insert 14.
Since the keyhole 12 can be sealed without damaging the inside only by inserting the inserter 22, the situation of unauthorized unlocking or insertion of foreign matter can be prevented, and the same effect as the double lock can be obtained.

Since the number of parts is small and the structure is simple, the manufacturing cost is low and the handling is easy. Further, when the key is lost or the like, it can be used as an emergency lock until the lock is replaced, which is convenient.

Next, a second embodiment will be described. Figure 6
FIG. 7 shows the overall configuration of the second embodiment, in which a sealing key is formed by overlapping two key members 20, 24.

The key member 20 has a knob 32 and a cylinder insert 14 as shown in FIG. 8, and the cylinder insert 14 side of the knob 32 is bent like a crank as shown in FIG.

The cylinder insert 14 is formed with a groove 16 extending from the base end to the tip along the central axis, and the tip of the cylinder insert 14 has bent pieces 26, 2 which are bent outward.
6 are formed.

The key member 24 has a knob 32 and a fitting 28 as shown in FIG. 9, and the tip of the fitting 28 fitted into the groove 16 of the cylinder insert 14 has Protrusions 30 and 3 fitted to the bent pieces 26 of the child 14
0 is formed. The cross-sectional shape of the fitting 28 has various shapes according to the keyhole of the cylinder lock.

FIG. 10 illustrates the operation of the second embodiment. A fitting 28 is fitted into the groove 16 of the cylinder insert 14, and the side surfaces of the projections 30, 30 at the tip of the fitting 28 abut against the side surfaces of the bent pieces 26, 26 of the cylinder insert 24, and the two key members 20 , 24 are superimposed on one another.

As shown in FIG.
Numeral 24 is inserted into the keyhole 12 of the cylinder 10 for locking and unlocking in a state of being overlapped, and as shown in FIG.
0, 30 and the bent pieces 26, 26 project from the keyhole 12 exit.

When the key member 24 is to be removed in this state, the bent pieces 26, 26 at the tip of the cylinder insert 14 are pushed out of the exit of the keyhole 12 by the projections 30 at the tip of the fitting 28, as shown in FIG. It is. Therefore, the key members 20 and 2
4 cannot be removed, and the keyhole 12 is sealed.

As described above, according to the present embodiment, the key members 20 and 24 are overlapped with each other, and the key members 12 and 24 can be sealed without damaging the inside only by inserting the key members 20 and 24 into the key hole 12 of the cylinder 10 in this state. Therefore, it is possible to prevent a situation where the lock is illegally unlocked or a foreign object is inserted.

[0032]

As described above, according to the present invention, 2
By simply inserting two key members into the cylinder keyhole, the keyhole can be sealed without damaging the inside, preventing unauthorized unlocking or the insertion of foreign matter, and has the same effect as a double lock. Can be obtained.

Since the number of parts is small and the structure is simple, the manufacturing cost is low and the handling is easy.

[Brief description of the drawings]

FIG. 1 is a front view showing the entire configuration of a first embodiment.

FIG. 2 is a plan view showing the entire configuration of the first embodiment.

FIG. 3 is a front view showing a configuration of one key member in the first embodiment.

FIG. 4 is a front view showing the configuration of the other key member in the first embodiment.

FIG. 5 is a schematic diagram illustrating the operation of the first embodiment.

FIG. 6 is a front view showing the entire configuration of the second embodiment.

FIG. 7 is a plan view showing the overall configuration of the second embodiment.

FIG. 8 is a front view showing a configuration of one key member in the second embodiment.

FIG. 9 is a front view showing the configuration of the other key member in the second embodiment.

FIG. 10 is a schematic diagram illustrating the operation of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cylinder 12 Keyhole 14 Cylinder insert 16 Groove 18 Projection piece 20 Key member 22 Insertion piece 24 Key member 26 Bending piece 28 Fitting element 30 Projection 32 Knob part 34 Locking piece

Claims (2)

(57) [Claims] 1. A cylinder insert (14) inserted into a keyhole (12) of a cylinder (10) for locking and unlocking, and continuously from a base end to a distal end along a central axis of the cylinder insert (14). The formed groove (16) and the cylinder insert (1
Projection piece (18) formed at the tip of 4) and protruding outward
And a key member (20) provided with: a key member (20) which is inserted into the groove (16) of the cylinder insert (14) inserted into the key hole (12) and pushes out the protruding piece (18) to the outside of the key hole (12) outlet. Key member (2)
4) A sealing key, comprising: 2. A cylinder insert (14) inserted into a keyhole (12) of a cylinder (10) for performing locking and unlocking, and continuously from a base end to a distal end along a central axis of the cylinder insert (14). The formed groove (16) and the cylinder insert (1
Bent piece (26) formed at the tip of 4) and bent outward
A key member (20) comprising: a key member (28) which is fitted into the groove (16) of the cylinder insert (14) and inserted into the key hole (12) in a state of being superimposed on the key member (20); ), And a key member (24) having a projection (30) formed at the distal end of the fitting (28) and fitted to the bent piece (26) of the cylinder insert (14). Characteristic sealing key.