KR102588047B1 - A key system of a lock having a high peaking difficulty - Google Patents

Abstract

The present invention relates to a key system for a lock configured to have a high degree of difficulty when picking with a picking tool, wherein three or more square grooves are formed between pin holes in the inner cylinder constituting the key system to insert square pins. In the square pin, a false groove is formed at a distance from the side bar entrance groove to increase the difficulty of picking, and a square pin is coupled to the square groove in the center among the square grooves formed in the inner tube. It is configured to enter and exit through a hole formed in the outer cylinder, and the side bar where the square pin is located has an escape groove to accommodate the square pin, and is configured to restrain and release the outer cylinder at three points. Therefore, the locking state of the key system can be perfectly maintained, and the application of the false groove formed on the square pin and the square pin has the advantage of further increasing the difficulty of picking so that it cannot be unlocked by a picking tool.

Description

A key system of a lock having a high peaking difficulty}

The present invention relates to a lock key system configured with high picking difficulty, and more specifically, to improve the side bar and square pin among the components that bind or release the outer and inner barrels constituting the lock key system to provide a picking tool ( This relates to a lock key system configured to greatly increase the difficulty level when unlocking the lock using a picking tool.

In general, the key system of a mechanical lock consists of an outer cylinder and an inner cylinder, and a number of locking pins and drive pins are inserted into it. When a key with an encrypted pattern is inserted into the key hole formed in the inner cylinder and rotated, the encrypted pattern formed on this key is opened. As the position of the locking pin is aligned according to the pattern, the restraint between the inner and outer cylinders of the key system is released. Conversely, when the key is removed from the key hole, the locking pin is configured to restrain the inner and outer cylinders by the action of the drive pin and spring. there is.

The key system of the general mechanical lock as described above has the disadvantage of being easily unlocked by a picking tool, so recently, the key system of the improved mechanical lock has been disclosed in various structures. The key system of the representative lock is described by the applicant herein. Looking at the patent number US 6,477,876 B1 registered by applying to the U.S. Patent Office, the pin holes formed in the outer and inner cylinders include a locking pin and a drive pin operated by a spring, and a square groove is formed between the pin holes to form a square pin. The side bar is charged and the operation is controlled by the square pin, which is installed between the outer cylinder and the inner cylinder.

As described above, the square pins that make up the key system of the lock are aligned with the side bar access grooves formed on the square pins by the encrypted pattern formed on the side of the key, so that the side bar installed between the outer and inner barrels restrains (locks) the outer and inner barrels. It is configured to be released, and in normal times, the side bar is pushed into the side bar groove formed on the outer cylinder by a spring, thereby restraining the inner and outer cylinders, and the square pin is scattered under its own weight, and the side bar entrance groove formed on the square pin is pulled out of the side bar. It is configured so that the inner and outer tubes are restrained by the side bar to prevent the side bar from being pushed toward the square pin.

As mentioned above, the reliability of the lock has been greatly improved by the improved lock key system that double binds the outer and inner cylinders by a locking pin and a side bar between the outer and inner cylinders that make up the lock key system, but the reliability of the lock has been greatly improved, but picking tools and picking technology As this progress has been made, there have been frequent cases of picking, and as a result it has failed to meet consumer expectations, resulting in a decrease in trust in mechanical locks. Therefore, the development of a key system for mechanical locks configured to prevent picking even with advanced picking tools and technology. This is urgently needed.

US Patent US 6,477,876 B1 (registered on November 12, 2002) Korean Patent: No. 10-1915838 (registered on October 31, 2018)

The present invention is intended to solve the above problems, allowing the outer and outer cylinders that make up the key system of the lock to be restrained (locked) or unlocked at three points, so that the locking condition is perfect and picking (picking) using a picking tool is possible. The purpose is to provide a lock key system with a high level of difficulty picking.

In particular, we have improved the side bar installed between the outer and inner cylinders that make up the lock key system and the square pin that controls the movement of the side bar, and by applying the square pin, advanced picking tools and technology can be used to improve the lock key system. The purpose is to increase the difficulty of picking to unlock.

The lock key system with high picking difficulty according to the present invention is configured so that the outer and inner cylinders are coupled to each other and can rotate, and the pin holes formed in the outer and inner cylinders are charged with a locking pin and a drive pin operated by a spring. It is composed of three or more square grooves formed between the pin holes of the inner cylinder to insert square pins, and a side bar whose operation is controlled by the square pins is installed between the outer cylinder and the inner cylinder, so that one side of the side bar is formed on the outer cylinder. It is configured to access the sidebar home.

Fraud holls are formed in the square pin at intervals from the side bar entrance groove to increase the difficulty of picking, and among the square grooves formed in the inner tube, the square groove in the center is a square pin. It is configured to enter and exit through a hole formed in the outer cylinder, and the side bar where the rectangular pin is located has an escape groove to accommodate the rectangular pin.

The key system of the lock constructed in this way is that when a key with an encrypted pattern is inserted into the key hole formed in the inner barrel, the locking pin, square pin, and square pin are aligned, and when the key is rotated, the inner barrel rotates together and the key system of the lock is unlocked. It is a feature of the present invention that it is configured to do so.

According to the present invention, the outer and outer cylinders that make up the key system are configured to be locked and released at three points, so the locking state of the key system can be perfectly maintained and the difficulty of picking can be greatly improved. there is.

In particular, the false groove formed in the square pin that makes up the key system can be confused with the side bar access groove when picking with a picking tool, and the application of the square pin increases the difficulty of picking by making it impossible to unlock by the picking tool. Trust in mechanical locks can be further improved.

Figure 1 is an overall perspective view of the key system of a lock
Figure 2 is an exploded perspective view of the key system of the lock
Figure 3 is a front view of the key system of the lock.
Figure 4 is a cross-sectional view taken along line AA of Figure 3
Figure 5 is a cross-sectional view taken along line BB of Figure 3
Figure 6 is a cross-sectional view taken along line CC of Figure 4
Figure 7 is a cross-sectional view taken along line DD of Figure 4
Figure 8 is a state in which the key is coupled to the key system of the lock.
Figure 9 is a cross-sectional view taken along line EE of Figure 8
Figure 10 is a cross-sectional view taken along line FF of Figure 9, showing the state in which the square pin and side bar are unlocked.
Figure 11 is a cross-sectional view taken along line GG of Figure 9, showing the state in which the rectangular pin and side bar are unlocked.

Hereinafter, a lock key system configured with high picking difficulty will be described in detail. This description is based on embodiments for implementing the present invention, and the technical idea pursued by the present invention is reflected in the embodiments described in this document. It is not intended to be limited to the form described, and should be understood to include various modifications, equivalents, and/or alternatives of the embodiments of the present invention.

In addition, although the operational effects according to the configuration of the present invention are not explicitly described and explained while explaining the embodiments of the present invention, it is natural that the predictable effects due to the configuration should also be recognized.

The configuration of the lock key system configured with high picking difficulty according to the present invention will be described in detail with reference to the attached drawings as follows.

The key system of the lock with high picking difficulty according to the present invention is configured so that the outer cylinder (10) and the inner cylinder (1) can rotate, and the outer cylinder (10) and the inner cylinder (1) have pins on the same line. Three or more holes (10-1) (1-1) are formed, and a locking pin (12) and a drive pin (13) operated by a spring (11) are inserted into the pin holes.

Three or more square grooves (2) are formed between the pin holes (1-1) of the inner cylinder (1), and the square grooves include a side bar entrance groove (3-2) and a side bar entrance groove (3-2) on the opposite side of the side bar entrance groove. A square pin (3) with a locking protrusion (3-1) is inserted into the side bar (4), the operation of which is controlled by the square pin, between the outer cylinder (10) and the inner cylinder (1). It is installed together with 2) and is configured so that one side of the side bar (4) enters and exits the side bar groove (10-2) formed in the outer cylinder (10).

A false groove (3-3) is formed at a distance from the side bar entrance groove (3-2) formed in the square pin (3) to increase difficulty during picking, and among three or more square grooves formed in the inner cylinder In the center, a rectangular pin (5) with a locking protrusion (5-1) is coupled, and the outer cylinder (10) has holes (10-3) at the top and bottom to allow a portion of the rectangular pin (5) to enter and exit. , the side bar (4) where the square pin (5) is located is formed with an escape groove (4-1) to accommodate the square pin (5).

The key system of the lock configured in this way aligns the locking pin (12), the square pin (3), and the square pin (5) when the key (30) with the encrypted pattern is inserted into the key hole (20) formed in the inner cylinder (1). When the key is rotated, the inner cylinder (1) rotates together to unlock the lock.

Reference numeral 40 in the drawing refers to an encrypted pattern formed on the key 30.

A detailed look at the operation of the key system of the lock with high picking difficulty of the present invention configured as described above is as follows.

In the locked state of the key system of the lock according to the present invention, the locking pin 12 inserted into the pin hole 10-1 (1-1) formed in the outer cylinder 10 and the inner cylinder 1 is connected to the drive pin 13. ) and the action of the spring 11, it is located between the outer cylinder and the inner cylinder, and the side bar (4) is pushed by the spring (4-2) and is coupled to the side bar groove (10-2) formed in the outer cylinder (10). The square pin (5) is coupled to one of the holes (10-3) formed at the top and bottom of the outer cylinder (10) to maintain a perfect locking state.

When the key system of the lock is locked in this way and the key (30) with the encrypted pattern is inserted into the key hole (20) formed in the inner cylinder, the locking pin (12), square pin (3), and square pin (5) are aligned. This releases the restraints on the outer cylinder (10) and the inner cylinder (1), and when the key is rotated in this state, the inner cylinder (1) rotates with the key and the lock is unlocked. The above operation is performed using the key of the normal encrypted pattern. The key in the lock unlocks the system.

With the key of this normal encrypted pattern, the key system of the lock is unlocked in normal operation, but picking with a picking tool becomes very difficult or impossible. Let's look at that operation.

In the description of the operation of the present invention, the drive pin 13 and the locking pin 12 inserted into the pin holes 10-1 (1-1) of the outer cylinder 10 and the inner cylinder 1 are picked by a picking tool. The description of the process is omitted, because it is not the function aimed at in the present invention, so detailed description is omitted and it is assumed that picking is performed, and the picking process for the sidebar, square pin, and square pin, which are the core of the present invention, is omitted. Let's look at it in detail.

First, touch the locking protrusion (3-1) provided on the square pin (3) installed at the innermost end of the inner tube (1) with a picking tool (not shown) to open the side bar access groove (3-2). Match the position with the position of the sidebar (4), and then touch the locking protrusion (3-1) provided on the square pin (3) to change the position of the sidebar access groove (3-2) to the sidebar ( Match the position of 4), and then attempt picking by touching the locking protrusion (5-1) formed on the rectangular pin (5) with a picking tool.

However, the square pin (5) does not have a side bar access groove (3-2) and a false groove (3-3) like the square pin (3), and the escape groove (4-1) formed on the side bar is located so that the through groove (4-1) is located. Since the square pin (5) is free and not restricted, if the encrypted pattern key is not used, it will always be in one of the holes (10-3) formed at the top and bottom of the outer cylinder (10), making picking impossible. Otherwise, it is bound to be very difficult.

So, the square pin (5) is skipped, and the square pins in the front are picked in turn. As time passes through this process, the last innermost pin that was picked first and the square pin inside it remain picked. Because it is unable to do so and has no choice but to collapse, it ultimately prevents picking, which causes the lock's key system to unlock.

Meanwhile, in the process of attempting this picking, a fake groove (3-3) formed at a distance from the encrypted sidebar access groove (3-2) can be placed on the sidebar (4), and the rectangular pin (5) ), unless it is the key of the encrypted pattern, moves freely and always enters one of the holes 10-3 formed at the top and bottom of the outer cylinder 10, making picking impossible or very difficult and using a picking tool. The lock's key system can be more completely prevented from being unlocked.

1: inner tube
1-1: Pin hole
2: Square groove
3: Square pin
3-1: Stumbling block
3-2: Sidebar access home
3-3: Fake Home
4: Sidebar
4-1: Getaway Home
4-2: Spring
5: Square pin
5-1: Stumbling block
10: outer cylinder
10-1: Pin hole
10-2: Sidebar Home
11: spring
12: locking pin
13: Drive pin
20: Keyhole
30: key

Claims (3)

The outer and inner cylinders that make up the key system of the lock are formed with three or more pin holes penetrating along the same line, and the pin holes are comprised of a spring, a locking pin, and a drive pin.
Three or more square grooves are formed between the pin holes formed in the inner tube, and square pins with side bar entrance grooves and locking protrusions are inserted into the square grooves,
A side bar whose operation is controlled by the square pin is installed with a spring between the outer cylinder and the inner cylinder so that one side of the side bar enters and exits the side bar groove formed on the outer cylinder,
A rectangular pin with a locking protrusion is coupled to any one of the three or more rectangular grooves formed in the inner cylinder so that a portion of the rectangular pin enters and exits the hole formed in the outer cylinder,
A key system for a lock with high picking difficulty, characterized in that an escape groove is formed on the side bar at the point where the square pin is located to accommodate the square pin. The lock key system according to claim 1, wherein a false groove is formed at a distance from the side bar access groove to increase the difficulty during picking. The method of claim 1, wherein among the three or more square grooves formed in the inner cylinder, a square pin is coupled to the remaining square grooves except the first and last square grooves, and the escape groove of the side bar for receiving the square pin is a square pin. A key system for a lock with high picking difficulty, characterized in that it is formed at a position corresponding to .