JPH0341009Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention uses a thin card to unlock the door, and not only a standard key card but also a master key card can be used. This invention relates to a card-using lock device suitable for rigid furniture, safes, etc.

[Problems to be solved by conventional techniques and ideas]

Generally, cylinder locks are widely used as lock devices. 2. Description of the Related Art In recent years, with the advancement of electronic technology, lock devices that use cards to unlock have been proposed and come into use. This card-based lock device is
There are known devices that use a card with an unlock code written in its magnetic recording section, or a card that has a built-in one-chip microprocessor.

However, all card-based lock devices require an electronic circuit and a power source to drive it in order to unlock the door with a card. For example, in a lock device that unlocks using a magnetic recording card, an electronic circuit is used to read the unlock code from the magnetic recording section and operate the lock. Also, in a card-operated lock device with a built-in one-chip microprocessor, the electronic circuit for operating the lock is read out from the one-chip microprocessor and processed, etc. I need. Also, in this type of lock device, the unlock code is written in the magnetic recording section or one-chip microprocessor, so the unlock code for the standard key and the unlock code for the master key can be freely changed. However, the entire device becomes large and complicated, and not only does it require electrical wiring, but it also becomes impossible to unlock in the event of a power outage, and emergency power equipment must be installed to prevent this. There were problems such as the assembly work to the door etc. became extremely complicated work.

Therefore, in view of the above circumstances, the present invention not only does not require any power supply equipment or wiring, it also allows the use of unlock cards not only for standard keys but also for master keys, and is extremely simple in configuration and easy to use. The purpose of the present invention is to provide an extremely convenient card-using lock device.

[Means that the invention attempts to solve]

A main slide plate is slidably attached to a lock body having a card insertion hole into which a master key card and a standard key card are inserted, and a master key slide plate is provided between the lock body and the main slide plate. A suitable number of standard lock holes are provided in both the lock body and the main slide plate so that they can be slid between each other, and the lock holes for the standard key are provided with an unlock code. In order to form a standard key, spring lock pins of different lengths and which can be freely engaged and detached between the lock body and the main slide plate are inserted, while the lock pin, the master key slide plate, and the main slide plate are connected to each other. The lock has an appropriate number of master key lock holes that can communicate with each other, and each master key lock hole has a different length to form an unlock code, and the lock body, the master key slide plate, and the main slide. Inserting a spring lock pin for a master key that can be freely engaged and detached from the plate, and opening a lock hole for a standard key and a lock hole for a master key formed in the lock body into the card insertion hole, The standard key card has an unlock code for releasing the lock body and the master key slide plate, and the lock body and main slide plate from the lock pins for the master key and the standard key. An appropriate number of irregularities are formed on the master key card, and an unlock code is provided on the master key card to release the lock between the lock body, the master key slide plate, and the main slide plate by the master key spring lock pin. The lower part of the master key slide plate is movable in a direction perpendicular to the movement direction of the master key slide plate when unlocking with a master key card and a standard key card. A card-based lock is provided with a bar plate that locks with the master key slide plate and cannot be moved when the lock is locked, and the bar plate is provided so that the bar plate can be freely locked on the edge of the opening on the main body side where the door opens and closes by the above-mentioned moving operation. The device is characterized by:

〔Example〕

An embodiment of a card-using lock device according to the present invention will be described below with reference to the drawings. In FIGS. 1 to 5, reference numeral 1 denotes a case-shaped lock main body with an open back surface. An operation window 2 is opened in the lower part of the lock body 1, and a card insertion hole 5 is bored in the upper part of the lock body 1, which communicates with lock holes 4 and 19, which will be described later. A main slide plate 6 is provided inside the lock body 1 so as to be slidable up and down. Between the lock main body 1 and the main slide plate 6, there are springs 7, 7 that elastically bias the main slide plate 6 in one direction of movement.
intervene. A plurality of lock holes 8 are provided on the surface of the main slide plate 6, as shown in FIG. On the other hand, on the inner surface of the lock main body 1, as shown in FIG. 5, a plurality of lock holes communicating with the card insertion hole 5 are provided corresponding to the lock holes 8. A spring 9, two lock pins 10, 11 of different lengths, and a steel ball 12 are fitted into each lock hole 4, 8 to form a standard key lock mechanism 13. The standard key lock mechanism 13 is constructed by selecting an appropriate lock hole from among the plurality of lock holes 4 and 8, and then inserting the lock pin 1 into the lock pin 1.
0 and 11 are also appropriately selected to form an unlocking code for a standard key. A fitting groove 14 is provided at an appropriate position on the surface of the main slide plate 6, a plurality of lock holes 15 are provided in the inner bottom surface of the fitting groove 14, and a master key slide plate 16 is vertically slid into the fitting groove 14. Fits in freely. A spring 17 is interposed between the main slide plate 6 and the master key slide plate 16 to elastically bias the master key slide plate 16 in one direction of movement. The master key slide plate 16 has a lock hole 1 corresponding to the lock hole 15 and penetrating through it.
A lock hole 19 is provided in the inner surface of the lock body 1 in correspondence with the lock hole 18. Of course, the lock hole 19 is communicated with the card insertion hole 5. The above lock holes 15, 18, 1
9 contains a spring 20, an appropriate number of lock pins 21a to 21d of different lengths, and a steel ball 2.
2 to lock the master key lock mechanism 23.
form. Multiple lock holes 15, 18, 19
A master key locking mechanism 23 is provided by selecting an appropriate one among them, and furthermore, the locking pins 21a to 21a are
The length of 21d is selected to form an unlocking code for the master key. A roller 24 is rotatably attached to the lower part of the master key slide plate 16, and the roller 24 is brought into contact with a bolt plate 25. The bolt plate 25 is provided within the lock main body 1 so as to be movable in a direction perpendicular to the sliding direction of the main slide plate 6 and the master key slide plate 16. The above roller 24
A locking step 26 is integrally provided on the upper surface of the locking plate 25 in contact with the locking plate 25, and a knob 27 facing the operation window 2 of the lock main body 1 is provided at the lower part.
Further, at the rear end, a bolt portion 28 is integrally formed, which can be inserted into a locking hole in a main body of furniture (not shown). A back cover 29 is attached to the back surface of the lock main body 1. The back cover 29 has a through hole 30 through which the bolt portion 28 appears and retracts, and a holder case 31 into which a latch mechanism 31 is mounted. The latch mechanism 31 includes a roller 32 and a support 3.
3 and a spring 34, and the roller 32 is fitted into a latch hole on the main body side of furniture (not shown) by the elastic force of the spring 34.
Of course, the above lock device can be attached to a door of furniture or the like.

It goes without saying that the main slide plate 6 is provided with a guide portion such as a protrusion on the inner surface of the lock main body 1 to guide the sliding movement. Further, the master key locking mechanism 23 is sufficient to lock at least the main slide plate 6 and the master key slide plate 16. Further, concave portions 35 and 36 are provided at the upper end of the bar portion 28 in correspondence with the opening and closing positions, while a convex portion 37 is provided on the inner surface of the back cover 29.
When the convex part 37 of the spring 38 is fitted into either of the concave parts 35 and 36, a so-called click mechanism is created which transmits the feeling of opening and closing to the operator's hand via the knob 27. It is also possible to provide one.

The unlocking cards 40 and 41 for unlocking are the third
There are two types: one for the master key shown in the figure and one for the standard key shown in FIGS. 4 and 5. The master key card 40 has through holes 42 and recesses 43 of various depths, depending on the position of the master key lock mechanism 23 and the lengths of its lock pins 21a to 21d.
44 is formed as an unlock code. The unlocking code can be formed by using the through hole 42 and the recesses 43, 44 alone depending on the formation position, or by appropriately combining the through hole 42 and the recesses 43, 44 with different depths. Of course, the unlocking code can be formed by Furthermore, the steel balls 12, 22 are so formed that they cannot be accidentally slipped out of the respective lock holes.

Next, the operation of the card-using lock device having the above configuration will be described. When the cards 40 and 41 are not inserted, as shown in FIG. is located between the lock body 1, the master key slide plate 16, and the main slide plate 6, and locks the master key slide plate 16 and the main slide plate 6 to the lock body 1 so as not to be movable. Of course, the master key slide plate 16 is also locked immovably to the main slide plate 6. In addition, in the standard key lock mechanism 13, either the lock pins 10 or 11 is located between the lock main body 1 and the main slide plate 6, and locks the main slide plate 6 immovably relative to the lock main body 1. do.

Here, as shown in FIG. 3, when the master key card 40 is inserted into the card insertion hole 5, the master key locking mechanism 23 corresponds to the unlocking code of the master key card 40. Needless to say, the master key card 40 is of a type that allows a group of locks each having a different standard key unlocking code to unlock all of the locks in this group. And master key card 4
The master key locking mechanism 23 is secured by the through hole 42, recesses 43, 44, and other simple flat surfaces.
When the steel ball 22 is pressed to a predetermined position, that is, the unlock code on the master key card 40 and the unlock code on the master key lock mechanism 23 match, and the end faces of the lock pins 21a to 21d are locked. Each lock hole 1 of the main body 1, the master key slide plate 16, and the main slide plate 6
Coincides with the end faces of Nos. 5, 18, and 19. Therefore, the master key slide plate 16 is released from its restraint with respect to the lock body 1 and the main slide plate 6, and becomes able to slide upward. Since the standard key lock mechanism 13 is not unlocked in any way, the main slide plate 6 is fixed to the lock body 1 by the lock pins 10 and 11.
If the knob 27 is grasped and the locking plate 25 is moved in the unlocking direction, the roller 24 will move from one positioning flat part 45 over the locking step 26 to reach the other positioning flat part 46. In other words, when the person opening the door moves the bar plate 25 as shown in FIG. A master key slide plate 16 integral with the roller 24 slides upward in the insertion groove 14 of the main slide plate 6. As a result, as the bar plate 25 is moved, the bar part 28 is pulled out from the locking hole on the furniture body side, and the door of the furniture etc. is unlocked, thereby allowing the furniture etc. to be opened.

On the other hand, as shown in FIG. 5, the standard key card 41 is inserted into the card insertion hole 5, and the unlock code of the standard key card 41 and the unlock code of the standard key lock mechanism 13 are matched in the same manner as above. If it matches, standard key card 41
The steel ball 12 is pressed to a predetermined position corresponding to the through hole 42, recesses 43, 44, and the flat surface of the card. As a result, lock pin 10,1
The end surface of the lock hole 1 coincides with the end surface of the lock hole 4 of the lock body 1 and the end surface of the lock hole 8 of the main slide plate 6. Therefore, the main slide plate 6 is released from restraint with respect to the lock main body 1 and becomes able to slide upward. At this time, the master key lock mechanism 23 is
As shown in Figure 4, standard key card 4
1 into the card insertion hole 5, the standard key card 41 presses the steel ball 22 and locks the lock pin, although the standard key card 41 does not have any master key unlock code as described above. A predetermined one among 21a to 21d releases the restraint between the lock main body 1 and the master key slide plate 16, so that the master key slide plate 16 can slide with respect to the lock main body 1. . Therefore, when the standard key card 41 is inserted into the card insertion hole 5, the restraint between the main slide plate 6 and the master key slide plate 16 is not released, and the main slide plate 6 and the master key slide plate 16 are not released. 16 to release the restraint on the lock main body 1. This allows the door to be opened in the same manner as above.

When the unlocking codes of the unlocking cards 40 and 41 do not match the unlocking codes of the master key locking mechanism 23 and the standard key locking mechanism 13, the locking state is locked by each of the locking pins 10, 11, 21a to 21d. Of course, if the bar plate 25 remains as it is, it will not be able to slide.

In addition, when forming the master key release code, not only the lock mechanism 13 of the master key slide plate 16 but also the lock hole 8 of the main slide plate 6 and the lock body 1 corresponding to this lock hole 8 are used.
It is also possible to form the lock hole using any one of the lock holes 4, or conversely, when forming the standard key unlock code, the main slide plate 6
Of course, the lock mechanism 3 can be formed using any one of the lock holes 15, 18, and 19 of the master key slide plate 16, the lock body 1, and the main slide plate 6.
Other combinations can also be set freely.

FIG. 7 shows another embodiment of an unlocking card 50 for a master key card or a standard key card, in which protrusions 51 and 52 of various heights are formed in correspondence with unlocking codes. This also allows the lock device shown in FIGS. 1 to 5 to be unlocked in exactly the same manner as described above.

Further, the lower end of the master key slide plate 16 can be brought into direct contact with the surface of the bolt plate 25 without providing the roller 24.

[Effect of idea]

As described above, the card-based lock device according to the present invention does not require any power supply equipment or wiring, and can be unlocked not only with standard key unlocking cards but also with master key unlocking cards. Furthermore, the structure is extremely simple and it is extremely convenient to use.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing one embodiment of a card-using lock device according to the present invention, Fig. 2 is a cross-sectional view of the state in which an unlocking card is not inserted, and Fig. 3 is a master key card inserted into the card insertion hole. Figures 4 and 5 are cross-sectional views of the standard key card inserted into the card insertion hole. Figure 6 shows the master key slide plate going over the locking step of the locking plate. An explanatory diagram showing the state, FIG. 7 is a sectional view showing another embodiment of each unlocking card. 1...Lock body, 2...Operation window, 4, 8, 1
5, 18, 19... Lock hole, 5... Card insertion hole, 6... Main slide plate, 7, 9, 17,
20, 34, 38... Spring, 10, 11,
21a-21d...Lock pin, 12, 22...
Steel ball, 13...Lock mechanism for standard key, 14...Inset groove, 16...Slide plate for master key, 23...Lock mechanism for master key, 24, 32...Roller, 25...Bar plate, 26 ... Locking step, 27 ... Knob, 28 ... Bolt part, 29 ... Back cover,
30...Through hole, 31...Latch mechanism, 33...Support, 35, 36...Recess, 37...Protrusion, 40
...Master key card, 41...Standard key card, 42...Through hole, 43, 44...
...Recess, 50...Unlock card, 51, 52...Protrusion.

Claims (1)

[Scope of utility model registration request] A main slide plate is slidably attached to a lock body having a card insertion hole into which a master key card and a standard key card are inserted, and a master key slide plate is provided between the lock body and the main slide plate. A suitable number of standard lock holes are provided in both the lock body and the main slide plate so that they can be slid between each other, and the lock holes for the standard key are provided with an unlock code. In order to form a standard key, spring lock pins of different lengths and which can be freely engaged and detached between the lock body and the main slide plate are inserted, while the lock pin, the master key slide plate, and the main slide plate are connected to each other. The lock has an appropriate number of master key lock holes that can communicate with each other, and each master key lock hole has a different length to form an unlock code, and the lock body, the master key slide plate, and the main slide. Inserting a spring lock pin for a master key that can be freely engaged and detached from the plate, and opening a lock hole for a standard key and a lock hole for a master key formed in the lock body into the card insertion hole, The standard key card has an unlock code for releasing the lock body and the master key slide plate, and the lock body and main slide plate from the lock pins for the master key and the standard key. An appropriate number of irregularities are formed on the master key card, and an unlock code is provided on the master key card to release the lock between the lock body, the master key slide plate, and the main slide plate by the master key spring lock pin. The lower part of the master key slide plate is movable in a direction perpendicular to the movement direction of the master key slide plate when unlocking with a master key card and a standard key card. A locking plate is provided that locks with the master key slide plate and cannot be moved when the lock is locked, and the locking plate is provided so as to be lockable to the edge of the opening on the main body side where the door opens and closes by the above-mentioned moving operation. A card-operated lock device.