JP2003074228A - Double lock for door using magnetic card key - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double lock for a door easily responding to the safety control of a building by easily attaching a picking prevention lock to an existing key of the building door at a low cost using a device easy of a laymen. SOLUTION: This double lock covers a lid openable/closable a keyhole of a first lock of the door and opening the lid by a second lock. This double lock is formed into an integral structure by bolting the physically strong first key fixed to the door, the lid having the picking prevention second lock, and a box frame connected to the lid by a hinge and attached to the lid covering the first lock so as to fix the double lock to the door of the building. The picking prevention second lock comprises a core body positioned in a lid casing and having locking magnetic pins in multiple recessed grooves, and a pair of plates capable inserting the magnetic card key having magnetism causing an attracting action and a repulsing action to/from the locking pins for providing an unlocking function, a locking retaining function, and a locking function.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double lock using a magnetic card equipped with an anti-picking lock on an existing lock of a building door.

[0002]

2. Description of the Related Art Various types of door locks have been proposed and used in buildings. Since the safety management of buildings has become widespread, no one can enter the building without permission, and safety management facilities are provided at huge expense for building safety management.

[0003]

The picking technique for opening a lock without using a regular key has been developed as the structure of the lock becomes complicated and a new lock is developed, but any lock is completely stolen. It is virtually impossible to prevent the crime of. Therefore, it has been proposed and implemented to prevent crime by providing two or more locks on one door and making the time required to open the lock as long as possible without using a legitimate key. . It is generally called one-door lock. However, a plurality of keys must be carried, and it is often troublesome to forget or lose a part of the keys, which is not widely used.

Further, when fixing these double locks to a door of a building, it is common to make a hole in the door and attach a fixing tool such as a bolt, and in general, one lock is attached as another lock. However, the installation work was complicated and troublesome, such as having to use a large number of specialized processing tools, so I had to ask a construction shop to do the installation. In addition, various fixing members have to be prepared according to the door thickness. The applicant has developed a double lock in consideration of these conventional techniques (Japanese Patent Application 2
(See No. 288201, 000).

In recent years, safety management of buildings has become widespread, and no one can enter the building without permission, and the key must be given to a courier or the like who has made a specific contract with a company or condominium. The current situation is that you are allowed to enter. Even so, if you have the key, you can invade it 24 hours a day, which is not preferable for safety management. Therefore, there is a demand for a device that can be used only during a time when safety management is well done, for example, during a time when there are security guards in the building, or during the day even if you have a key. Enormous costs and facilities were required for the corresponding building safety management.

The present invention aims to solve these problems, and even an amateur can easily and inexpensively and easily attach a picking prevention lock to an existing lock of a building door by using a simple tool. It is to provide a double lock for doors that can easily handle the safety management of.

[0007]

The double lock of the present invention is a double lock for a door in which the keyhole of the first lock of the door is covered with a lid that can be opened and closed, and the lid is opened by the second lock. A physically sturdy first lock fixed to the door, a lid having a second picking prevention lock, and a box frame hingedly connected to the lid and attached to the door so as to cover the first lock. The double lock can be configured on the door of the building by integrally tightening with and bolts, and the second lock for preventing picking is a locking magnet pin in a plurality of hole grooves opened in the lid casing. Has a core body in which is inserted, a locking plate having a plurality of holes with which locking magnet pins engage, and a locking pin that has an unlocking function and a locking function, and has magnetism that causes attractive force and repulsive action. It is characterized by comprising a pair of plates into which a magnetic card can be inserted.

The double lock of the present invention is a double lock for a door in which the keyhole of the first lock of the door is covered with a lid that can be opened and closed, and the lid is opened by the second lock. In addition, a sturdy first lock, a lid provided with a second lock for preventing picking, and a box frame that is hingedly connected to the lid and is attached to the door so as to cover the first lock are integrally configured by bolting. To form a double lock on the door of the building, and the second lock for preventing picking has a core body in which locking magnet pins are inserted into a plurality of hole grooves opened in the lid casing. A locking plate having a plurality of holes with which locking magnet pins engage, and a pair of plates in the casing into which a magnetic card can be inserted, the card being one of the plates. Is provided with magnetism that gives an unlocking function and an unlocking holding function to the locking pin, and the other surface is provided with a locking pin It is characterized by having magnetism that gives a locking function.

A double lock of the present invention is a double lock for a door in which a keyhole of a first lock of a door is covered with a lid that can be opened and closed, and the lid is opened by a second lock. In addition, a sturdy first lock, a lid provided with a second lock for preventing picking, and a box frame that is hingedly connected to the lid and is attached to the door so as to cover the first lock are integrally configured by bolting. To form a double lock on the door of the building, and the second lock for preventing picking has a core body in which locking magnet pins are inserted into a plurality of hole grooves opened in the lid casing. A locking plate having a plurality of holes with which locking magnetic pins engage, and a pair of plates in the casing into which a magnetic card can be inserted. Each key has a magnetism that gives only the unlocking function and unlocking holding function or locking function to the locking pin. Wherein the obtaining a two types of key ─.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing a state in which the lid is opened from the box frame before the second picking prevention second lock is attached to the existing door, and FIG. 2 is the existing picking prevention second lock. FIG. 4 is a perspective view showing a state in which the lid is opened from the box frame after attaching the lock, FIG. 3 is a side view in which the lid of the double lock is closed and spring-locked to the box frame, and FIG. FIG. 6 is a cutaway perspective view of a double lock, wherein a magnetic card is inserted into the second lock, FIG. 5 is a perspective view of the second lock into which the magnetic card can be inserted, and FIG. It is the perspective view which all the 2nd tablets provided in the lid were removed and disassembled.

In FIG. 1, a handle and a physically sturdy first lock 3 are attached to an existing door 1, and a hole into which a bolt for fixing a member having a double lock is screwed into the door 1 is drilled. Shows the state of being opened by. To form a double lock to prevent picking, a lid 7 with a second lock and a hinged box frame 2 are fixed to the existing door 1 using long bolts 6. At this time, the existing door 1 and the box frame 2 should not be screwed into the door 1 directly.
It is also possible to insert a fixing member between and and install and fix the fixing member on the neck portion of the first lock 3 for use. In this case, it can be fixed only by bolting without using a processing tool such as a drill.

In FIG. 2, a lid 7 provided with a second picking prevention lock and a hinged box frame 2 are attached to an existing door 1 with long bolts 6 to form a double lock, and then the lid 7 is formed.
Shows a state where the box is opened from the box frame 2.

The latch 4 provided on the existing door 1 appears and disappears when the first lock 3 is operated. The keyhole 3a of the first lock 3 is covered with a lid 7 which is attached so as to be openable and closable. To open the door 1, first insert the second key card 11 into the keyhole 12 of the second lock 10 (FIG. 5) and open the lid 7, and then further open the first key as disclosed in FIG. After inserting the first key 5 into the key hole 3a of the lock 3 and retracting the latch 4, the door 1 is opened by the handle.

In this way, the keyhole 3a of the first lock 3 is a lid case.
Since the second case is covered with the sing 7 and the lid case 7 needs to be opened, the safety of the first lock 3 can be remarkably enhanced.

FIG. 3 shows a state in which the lid casing 7 of the double lock is closed and spring-locked to the box frame 2. A spring locking member 8 is attached to the lid casing 7 of the double lock,
The box frame 2 is provided with an engaging portion 9 with which the spring engaging member 8 is engaged. Therefore, when the second lock 10 is not locked by the key of the second key, the lid casing 7 of this double lock has the locking portions 8 and 9 spring-locked, and the lid case 7 is locked. Thing 7 is closed to box frame 2.

FIG. 4 shows a double lock with a second lock 10 and a card 11
Is a state in which the inserted state is completely cut and the inside is seen, and the holding pin 15b is locked in the hole 20a of the locking plate 16. FIG. 5 is a perspective view in which the second tablet 10 into which the magnetic card 11 can be inserted is removed from the lid casing 7. Further, FIG. 6 shows a state in which all the second tablets 10 provided on the lid casing 7 are disassembled and removed.

When unlocking, the magnetic card 11
A key having an unlocking function on one surface 11a or a key having only an unlocking function is used, and the card 11 is covered with a lid.
It is inserted between a pair of iron plates 18 and a stainless steel lid plate 17 of the second lock 10 provided in the lid casing 7 through a slit 12 provided in the thing 7, and a predetermined position F of the card key 11a. Since the magnetic pin 15a (for example, the N pole) is provided with a magnetic force (for example, the N pole) that repels the magnetic pin 15a,
The hole 20a of the lock plate 16 is pulled into the hole groove 14 opened in the core body 13 by the magnetic repulsion action.
It is released from a.

In this case, the card 11a is further (see FIG. 4).
(In the direction of the arrow), the core body 13 is inserted into the casing 7.
Is moved against the spring 21, and the lock member 22 is also moved integrally with the core body 13, so that the locking engagement portion 23 provided on the lock member 22 is the engagement portion provided on the lid casing 7. 9
Then, the second lock 10 is unlocked. At this time, the predetermined hole position B of the card 11a is in the state holding hole 20 of the lock plate 16.
the magnetic pin 15b at the predetermined position B.
Since a magnetic (for example, S pole) that attracts (for example, N pole) is provided, the magnetic pin 15b (unlocked state holding pin) is attracted by a magnetic action and locked in the state holding hole 20b of the lock plate 16. The unlocked state is retained. The second tablet
The core body 13, the lock member 22, and the spring 21 of 10 are installed in the holding member 24 (see FIG. 6).

In the case of locking, the card key 11 uses a key having a locking function on one surface 11b or a key having only a locking function to pass through the slit 12 provided in the lid 7, When it is inserted into the unlocked second lock 10, the magnetic predetermined hole position B that repels the unlocked state holding pin 15b of the card reaches the holding pin 15b, and the holding pin 15b moves. Due to the magnetic repulsion, the lock plate 16 is pulled out into the hole groove 14 opened in the core body 13 from the state holding hole 20b, and at the same time, the spring
The core body 13 returns to the locked position by the action of 21. as a result,
The lock member 22 returns to the locked position together with the core body 13, and the locking engagement portion 23 engages with the engagement portion 9 provided on the lid casing 7 to be in the locked state. At that time, the iron plate 18 is an iron piece (magnetic material)
Therefore, the magnetic pin 15a returns to the state of being locked in the hole 20a of the lock plate 16 by the magnetic attraction of the magnetic pin 15a on the iron piece.

This card 11 has a magnetic pin 15a at a predetermined hole position F of the card so that one surface 11a has an unlocking function.
To the pin 15b at the predetermined hole position B of the card so as to have a locking function on the other surface 11b. It is a single key that has been applied. Therefore, the predetermined hole position B is a card key 11 that is magnetic (S pole) that attracts the holding pin on one surface 11a and magnetic (N pole) that repels the holding pin on the other surface 11b. . Alternatively, the card 11 may be provided with two keys, that is, a key 11a having a treatment having only an unlocking function and an unlocking holding function, and a key 11b having a treatment having only a locking function. .

Since the unlocked state holding position B in which the pin 15b disclosed in FIG. 5 exists is located at the center of the card 11, the NS pole of one magnet is placed on the back surface of the card 11. It only has to have an unlocking holding function and a locking function by being operated, but if the holding pin 15b exists at the position of the end of the card 11, the N pole and the S pole are provided on the back surface of the card 11. The points to be marked are the left and right symmetrical end positions from the center line of the card 11.

For example, this magnetic card 11 is held by a person who manages the building, and the second lock 10 is unlocked only when the building administrator can manage the building and the second lock 10 is locked. If the parts 8 and 9 are placed in the spring-locked state, the courier who has given only the first key 5 unlocks the second lock 10, so open the lid 7 and open the first lock 3. The door 1 can be opened by inserting the first key 5 into the keyhole 3a.

If the building manager locks the second lock 10 using this magnetic card when the building manager leaves the building, the courier will give the first key. However, you cannot access the 1st lock, so you cannot unlock the door to enter the building. Only by providing the double lock of the present invention, it is possible to easily manage the safety of the building.

If the predetermined position B of the magnetic card 11 does not have magnetism for attracting the holding pin by the magnetic action,
When the magnetic card 11 is inserted to a predetermined position, the magnetic pin 15a is inserted from the hole 20a of the lock plate 16 corresponding to the predetermined position F into the hole groove 14 opened in the core body 13 by magnetic repulsion. It is retracted and released from the hole 20a of the lock plate 16, and the card 11a is further inserted into the casing 7 (in the direction of the arrow in FIG. 4) to move the core body 13 against the spring 21. Since the lock member 22 is also moved integrally with the core body 13, the locking engagement portion 23 provided on the lock member 22 disengages from the engagement portion 9 provided on the lid casing 7, and The lock 10 is unlocked. When the magnetic card 11 is pulled out from the slit 12 provided in the lid 7, the action of the spring 21 causes the core body to move.
Since 13 is returned to the locking position, the locking engagement portion 23 engages with the engagement portion 9 provided on the lid casing 7 and enters the locked state.

[0025]

According to the present invention, since it is a double lock in which a physically strong first lock and a strong second lock for preventing picking are integrally formed only by bolting, a layman can easily do it. With a simple tool, it can be fixed as a double lock on the existing door of the building for enhanced picking protection.

According to the present invention, even an amateur can use a simple tool to attach a picking prevention lock to an existing lock of a building door inexpensively and easily and easily cope with safety management of the building.

The first key is provided to a courier or the like so that the building manager can unlock the first lock only in a specific time period even if the building manager has the first key, for example, only in the daytime or in a specific time period. If the second lock 10 is not unlocked, the courier etc. cannot enter the building. Therefore, the safety of the building can be easily managed even if the first key is not collected from the courier or the like and there is no special facility.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a lid is opened from a box frame before a second picking prevention lock is attached to an existing door.

FIG. 2 is a perspective view showing a state in which the lid is opened from the box frame after the second picking prevention lock is attached to the existing door.

FIG. 3 is a side view showing a state in which the lid of the double lock is closed and spring-locked to the box frame.

FIG. 4 is a cutaway perspective view in which a magnetic card is inserted in the second lock of the double lock.

FIG. 5 is a perspective view in which a second lock into which a magnetic card can be inserted is removed from a lid.

FIG. 6 is a perspective view in which all the second locks provided on the lid are removed and disassembled.

[Explanation of symbols]

1. ． ． ． ． door 2. ． ． ． ． Box frame hand 3. ． ． ． ． First tablet 3a. ． ． ． First lock keyhole 4. ． ． ． ． Stake 5. ． ． ． ． First key 6. ． ． ． ． Long bolt 7. ． ． ． ． lid 8. ． ． ． ． Spring locking member 9. ． ． ． ． Engagement part Ten. ． ． ． ． Second tablet 11. ． ． ． ． Card 11 (second key) 12. ． ． ． ． slit 13. ． ． ． ． Core body 14. ． ． ． ． Core groove 15. ． ． ． ． Magnetic pin 16. ． ． ． ． Lock plate 17. ． ． ． ． Stainless steel lid plate 18. ． ． ． ． Iron plate 19. ． ． ． ． Leaf spring 20. ． ． ． ． Lock plate hole twenty one. ． ． ． ． Spring twenty two. ． ． ． ． Lock member twenty three. ． ． ． ． Locking locking part twenty four. ． ． ． ． Holding member

Claims (3)

[Claims] 1. A door double lock in which a keyhole of a first lock of a door is covered with a lid that can be opened and closed, and the lid is opened by a second lock,
A physically sturdy first lock fixed to the door, a lid having a second picking prevention lock, and a box frame hingedly connected to the lid and attached to the door so as to cover the first lock. A double lock can be configured on the door of the building by integrally tightening with a bolt, and the second lock for preventing picking has locking magnet pins in a plurality of hole grooves opened in the lid casing. The inserted core body, the locking plate having a plurality of holes with which the locking magnet pin engages, and the magnetic pin with the magnetic force that causes the attractive force and the repulsive action to have the unlocking function and the locking function. A double lock for doors, which consists of a pair of plates into which a card can be inserted. 2. A door double lock in which the keyhole of the first lock of the door is covered with a lid that can be opened and closed, and the lid is opened by the second lock.
A physically sturdy first lock fixed to the door, a lid having a second picking prevention lock, and a box frame hingedly connected to the lid and attached to the door so as to cover the first lock. A double lock can be configured on the door of the building by integrally tightening with a bolt, and the second lock for preventing picking has locking magnet pins in a plurality of hole grooves opened in the lid casing. The inserted core body, a locking plate having a plurality of holes with which the locking magnet pins engage, and a pair of plates in the casing into which a magnetic card can be inserted. The card may be provided with magnetism on one side that gives the lock pin an unlocking function and an unlocking retention function, and on the other side with magnetism that gives the lock pin a locking function. Double lock for doors. 3. A door double lock in which the keyhole of the first lock of the door is covered with a lid that can be opened and closed and the lid is opened by a second lock.
A physically sturdy first lock fixed to the door, a lid having a second picking prevention lock, and a box frame hingedly connected to the lid and attached to the door so as to cover the first lock. A double lock can be configured on the door of the building by integrally bolting it, and the second lock for picking prevention has lock magnet pins inserted into a plurality of hole grooves opened in the lid. A core body, a locking plate having a plurality of holes with which locking magnetic pins engage, and a pair of plates in the casing into which a magnetic card can be inserted. A double lock for a door characterized in that it is a two-key key having magnetism that gives only the unlocking function and the unlocking retaining function or the locking function to the locking pin.