JPS63571A - Electric door lock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electric door lock that is attached to, for example, a hotel room door.

[Prior art]

2. Description of the Related Art Conventionally, electric door locks have been known that use a card reader to read data recorded on a card and unlock the door based on this data. This type of electric door lock usually includes a dead bolt or latch bolt (a retractable member) that retracts in conjunction with the rotation of a handle consisting of a knob or lever, and a cam stopper mechanism (a retractable member) that restricts the rotation of the knob. A solenoid or motor (electric actuator) for driving this force stopper mechanism, a card reader that reads the data recorded on the card, and the above based on the data read from this card reader. It is equipped with a control means for controlling a solenoid and a motor.

However, the reality is that the conventional electric door lock described above is still insufficient in terms of reliability and maintenance when the electric door lock is operated alone. Another problem was that the structure was not compact.

[Purpose of the invention]

The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to provide an electric door lock having a compact structure and improving reliability.

[Structure of the invention]

The electric door lock according to the first invention includes a retractable member that retracts and retracts in conjunction with the rotation of the handle, a locking/unlocking means for regulating the rotation of the handle, and an electric actuator for driving the locking/unlocking means. an electric door lock comprising: a card reader for reading data recorded on a card; and a control means for controlling the electric actuator based on the data read from the card reader;
The value of the card data read by the above card reader,
Compare the value of the memory data held in the memory of this control means, and if the value of the card data is larger, drive the electric actuator to the unlocked state and erase the memory data. The card data is set to be replaced as memory data, and when a new card is inserted, the electric door lock becomes unlocked and the old card becomes unusable. It is something to do.

The electric door lock according to the second invention includes a retractable member that retracts and retracts in conjunction with the rotation of the handle, a locking/unlocking means for regulating the rotation of the handle, and an electric actuator for driving the locking/unlocking means. an electric door lock comprising: a card reader for reading data recorded on a card; and a control means for controlling the electric actuator based on the data read from the card reader; The device is characterized by being equipped with a rewritable non-volatile memory so that it can be sufficiently coped with even if an unexpected power supply stoppage or power supply replacement occurs.

The electric door lock according to the third invention includes a retractable member that retracts and retracts in conjunction with the rotation of the handle, a locking/unlocking means for regulating the rotation of the handle, and an electric actuator for driving the locking/unlocking means. an electric door lock comprising: a card reader that reads data recorded on a card; and a control means that controls the electric actuator based on the data read from the card reader; Provided on the outdoor case of the lock body,
The present invention is characterized in that the card reader can be installed at a fixed position from the outside without being affected by the thickness of the door.

The electric door lock according to the fourth aspect of the present invention includes a retractable member that retracts and retracts in conjunction with the rotation of the handle, a locking/unlocking means for regulating the rotation of the handle, and an electric actuator for driving the locking/unlocking means. an electric door lock comprising: a card reader for reading data recorded on a card; and a control means for controlling the electric actuator based on the data read from the card reader; The present invention is characterized in that a printed circuit board on which a card is provided is disposed directly above the card reader, so that rainwater etc. adhering to the card can be sufficiently dealt with.

The electric door lock according to the fifth aspect of the present invention includes a retractable member that retracts and retracts in conjunction with the rotation of the handle, a locking/unlocking means for regulating the rotation of the handle, and an electric actuator for driving the locking/unlocking means. an electric door lock comprising: a card reader for reading data recorded on a card; and a control means for controlling the electric actuator based on the data read from the card reader; A battery box loaded with a battery that supplies power to the reader and the control means is built into the indoor case of the electric door lock body to prevent the battery from being stolen from the outdoor side, and to prevent the battery from being stolen from the indoor side. It is characterized by being constructed so that the battery can be replaced from the beginning.

〔Example〕

An embodiment of the present invention will be described below based on FIGS. 1 to 4.

In the electric door lock 1 according to the present invention, as shown in FIG. 1, the indoor case 2 and the outdoor case 3 sandwich the door 4,
It is placed facing backwards. And both cases 2 and above
An indoor corner core 5 and an outdoor corner core 6 are rotatably provided at the lower part of the door 3, respectively, passing through the cases 2 and 3 and reaching approximately the center shaft of the door 4. A knob or lever (not shown) as a handle is provided on each of the outer ends 5a and 6a of the two square cores 5 and 6, and the inner ends 5b and 6 are provided with knobs or levers as handles (not shown).
b is the locking mechanism 7 as shown in FIGS. 2(a) and (b).
The latch cams 8 and 9 are engaged with square holes 8a and 9a. A retractor 10 that slides in conjunction with the rotation of the latch cam 8 or 9 is provided near the latch cams 8 and 9. A latch bolt 11 is provided as a retractable member that retracts and retracts in conjunction with the sliding movement of the latch bolt 11. Furthermore, above this launch bolt 11,
A latch stopper 41 is provided to restrict retraction of the latch bolt 11. The latch cams 8 and 9 are formed with notches 8b and 9b, respectively, and the notch 9b has one end 1 of the cam stopper 13.
3a is engaged. The other end 13b of the cam stopper 13 is engaged with a first projecting piece 14a of a rotatably provided cam joint 14. The cam stopper 13 and the cam joint 14 constitute a cam stopper mechanism 12 as locking/unlocking means. Also, the second projecting piece 1 in this cam joint 14
4b is formed so that an unlock switch 15 provided near the cam joint 14 can be turned on when the engagement between the cam stopper 13 and the notch 9a is released.

Furthermore, a notch 14C is formed in this cam joint 14, and this notch 14c is engaged with a pin 18 provided at the tip of a plunger 17 in a solenoid 16 as an electric actuator. This solenoid 16 has a printed base +I as shown in FIG.
i, 19.It is electrically connected to control means 20 configured on 19.

This control means 20, as shown in FIG.
It consists of a one-chip CPU 30 equipped with OM and RAM, and NOVRAM (nonvolatile, random, access, memory) 31 as a rewritable nonvolatile memory that can retain data even when power supply is stopped. There is. Note that instead of the NOVRAM 31, EEFROM (electric, eraser, programmable, read, only, memory) or
A combination of a normal RAM and a back-up battery may also be used. The above EEPROM can operate at 5V (volts) or 18V, but is expensive.
In addition, the operating performance is somewhat inferior, so in reality, the above NOVRAM
It is preferable to use 31. One-chip CPU3 above
0 further includes a card reader 21, a fire alarm interlock switch 34, an unlock switch 35, a W, D (watchdog) timer 36, and a red LED that displays an error.
D37, a green LED 38 that displays the unlocked state, a solenoid driver 32 that supplies power to the solenoid 16 in accordance with a command from the one-chip CPU 30, an unlock switch 15 in the lock mechanism 7, and an open switch that detects the open state of the door. A door switch 33 is connected.

The one-chip CPU 30 first includes a card reader 2.
It is determined whether the card 23 inserted into the slot 1 is a card that should be unlocked. If it is determined that this card 23 is not a card that should be unlocked, an error is displayed on the red LED 37 and the process ends without unlocking. Then, the value of this card data and the value of data held by NOVRAM31,
In other words, it is determined whether the values match the memory data. If the value of the card data and the value of the memory data match, an unlocking operation signal is output.

- On the other hand, if the value of the card data and the value of the memory data do not match, it is determined whether the value of the card data is greater than the value of the memory data. If the value of the card data is smaller than the value of the memory data, the above red L
An error message is displayed at ED37 and the process ends without unlocking. - On the other hand, if the value of the card data is larger than the value of the memory data, the memory data is deleted and this card data is stored in the NOVRAM 31 as memory data.
is set to write to.

The one-chip CPU 30, NOVRAM 31, card reader 21, and W/D timer 36 are connected to an external battery 40 and an internal battery 24 via a stabilized power supply 39. And the above red LED 37, green LED
3B, the solenoid driver 32 is connected to the internal battery 24
It is connected to the.

Printed circuit boards 19 and 19 provided with this control means 20
is a spacer 2 directly above the card reader 21.
2... This card reader 21 is fixed to the outdoor case 3 with the card insertion slot 21a of the JI card reader 21 facing the outdoor side, and is located at a position corresponding to the card insertion slot 21a in the outdoor case 3. An opening 3a is formed therein. Note that the card 23 may be a magnetic card or an IC card.
Cards etc. are applied. A battery box 25 into which the internal battery 24 is loaded is built into the indoor case 2, and a removable lid 2a is provided at a portion of the indoor case 2 that corresponds to the battery box 25. ing. Further, in this electric door lock, a thumb turn 26 is provided on the indoor side for use in an emergency, and a cylinder 28 for locking and unlocking with a key 27 is provided on the outdoor side.

For example, at the front desk of a hotel, a new customer is given a card with a higher numerical value than the old one. As shown in FIG. 4, the new customer inserts this card into the card insertion slot 21a of the card reader 21 in the electric door lock 1 provided in each guest room (Sl). The card reader 21 reads data from this card and sends the read card data to the control means 20.

The control means 20 first determines whether or not this card was issued at this hotel (S2). In other words, it is determined whether or not the card should be unlocked. This card is
If it is determined that the card is not one that should be unlocked, the red LED 37 will light up.
An error message is displayed (S10), and the lock is not unlocked (end (S11)).

Next, it is determined whether the value of this card data and the value of the data held in the NOVRAM 31, that is, the value of the memory data, match (S3). If the value of the card data and the value of the memory data match, it is determined that the holder of this card is a continuing customer, and an unlocking operation signal is output (S6). - On the other hand, if the value of the card data and the value of the memory data do not match, it is determined whether the value of the card data is greater than the value of the memory data (S4).

If the value of the card data is smaller than the value of the memory data, it is determined that the owner of this card is an old card, an error is displayed on the red LED 37 (310), and the process ends without unlocking. (S11). - On the other hand, if the value of the card data is greater than the value of the memory data, it is determined that the owner of this card is a new customer, the memory data is deleted, and this card data is used as the memory data as described above. Write to NOVRAM 31 (S5).

Then, an unlocking operation signal is output to the solenoid driver 32 (S6). The solenoid driver 32 is
The solenoid 16 is activated (S7).

This solenoid 16 operates to unlock the cam stopper mechanism 12 (S8). In this unlocking operation of the cam stopper mechanism, the plunger 17 in the solenoid 16 retreats in the A direction.

The cam joint 14 is rotated in the B direction by a pin 18 provided at the tip of the plunger 17. By this rotation of the cam joint 14 in the B direction, the second protrusion 14b of the cam joint 14 turns on the unlock switch 15, and the first protrusion 14a turns on the cam stopper 1.
3 in direction C. This causes the above green LED to
38 lights up to indicate that the lock is unlocked (S9), and the notch 9b in the latch cam 9 and the cam stopper 13
The latch cam 9 becomes rotatable. By turning the square core 6 with the handle and rotating the latch cam 9 in the D direction using the square core 6, the retractor 10 slides in the E direction. By this sliding of the retractor 10 in the E direction, the restriction of the latch bolt 11 in the latch stopper 41 is released, and the latch bolt 11 is released.
is inserted into the locking mechanism 7. As a result, this electric door lock 1
Door 4 is opened.

As mentioned above, once a new card is inserted, the old card can no longer be used. Therefore, even if the customer takes the card home, it is possible to ensure the security of each room. Furthermore, since customers can take the card home with them, if an advertisement is written on the card, it will also have an advertising effect. Moreover, since it is possible to create a MasterCard, even large hotels can be completely managed. Furthermore, when a customer goes out, there is no need to pick up the key at the front desk, which saves labor and eliminates the need for a key rack.

Since the card reader 21 is fixed to the outdoor case 3, it can be maintained at an optimal position without being affected by the wall thickness of the door 4. In other words, when this card reader 21 is provided in the indoor case 2 and the wall thickness of the door 4 is thick, this card reader 21
is located far from the outdoor case 3, so the card 2
This is because it becomes necessary to insert 3 all the way to the back.

Further, a printed circuit board 19 on which the control means 20 is provided
- Since the control means 20 is disposed above the card reader 21, the control means 20 will not be damaged even if rainwater or the like enters. In other words, even if a cover is provided on the card insertion slot 21a of the card reader 21 and the opening 3a of the outdoor case 3, rainwater etc. may adhere to the card 23. This rainwater may enter the card reader 21. Since rainwater permeates downward, if the printed circuit boards 19 are provided above the card reader 21, they will not come into contact with the rainwater. Therefore, damage to the control means 20 due to the rainwater can be avoided.

Furthermore, if the printed circuit boards 19 are provided in the indoor case 2, the control means 20 and the card reader 21 are connected when the indoor case 2 and the outdoor case 3 are assembled. However, since the printed circuit boards 19 are disposed directly above the card reader 21, The wiring between the card reader 21 and the control means 20 can be shortened and simplified.Moreover, by shortening the wiring, the weak current flowing through the control means 20 can be reduced. It is possible to prevent this from happening.

Since the internal battery 24 is built into the indoor case 2, the internal battery 24 cannot be stolen from the outdoor side. By removing the lid 2a provided on the indoor case 2 that corresponds to the battery box 25 that houses the internal battery 24, the internal battery 24 can be easily replaced.

Note that the external battery 40 functions to assist the internal battery 24.

〔Effect of the invention〕

In the electric door lock according to the first to fifth inventions, firstly, the control means compares the value of the card data read by the card reader with the value of the memory data held in the memory of the control means. If the value of the card data is larger, the electric actuator is driven to the unlocked state, the memory data is erased, and the card data is replaced with the memory data. As soon as a new card is inserted, the old card can no longer be used, making it possible to ensure the security of each room even if the customer takes the card home.

Second, since the control means is configured to include a rewritable non-volatile memory as the memory, it is possible to save the effort of upgrading the memory when replacing the power supply. Further, even if the power supply is unexpectedly stopped, for example, the battery is disconnected due to an impact when the door is closed, the data in the memory will not be lost.

Thirdly, since the card reader is built into the outdoor case of the electric door lock body, it is possible to install the card reader at a fixed position from the outdoor side without being affected by the thickness of the door. .

Fourthly, since the printed circuit board on which the weak electrical elements such as the control means are installed is disposed directly above the card reader, even if rainwater or the like gets into the card reader, the rainwater or the like will cause the It is possible to avoid damage to the control means provided on the printed circuit board. moreover,
The workability of assembling the outdoor case and the indoor case and the noise resistance of the control means can be improved.

Fifth, since the battery box loaded with the battery that supplies power to at least the electric actuator, card reader, and control means is built into the indoor case of the electric door lock body, each room and the center It is possible to eliminate the need for wiring with the control room, for example, the front desk. Furthermore, it is possible to prevent the battery from being stolen from outside the room, and it is possible to replace the battery from the inside.

Therefore, it is possible to improve various aspects of the reliability of this electric door lock, and it is also possible to make the structure of this electric door lock more compact.

[Brief explanation of drawings]

Figure 1 is a sectional view showing one embodiment of the present invention, Figure 2 (a)
is an explanatory diagram showing the internal structure of the lock mechanism, and the same figure (b) is the same figure (
3 is a block diagram showing the control means, and FIG. 4 is a flowchart showing the unlocking process executed by the control means etc. 1 is an electric door lock, 2 is an indoor case, 3 is an outdoor case,
7 is a lock mechanism, 8 and 9 are latch cams, and 10 is a retractor.
111 is a latch bolt (retractable member), 12 is a cam stopper mechanism (locking/unlocking means), 13 is a cam stopper, 14
is a cam joint, 15 is an unlock switch, 16 is a solenoid (electric actuator), 19 is a printed circuit board,
20 is a control means, 21 is a card reader, 23 is a card, 24 is an internal battery, 25 is a battery box, 30 is a one-chip CPU, 31 is NOVRAM (rewritable nonvolatile memory), and 32 is a solenoid driver. Patent Applicant Showa Lock Co., Ltd. Procedural Amendment Commissioner of the Patent Office Black 1) Akira IJjlrB. ■, Indication of the case 1986 Patent side No. 142109 2, Name of the invention Electric door lock 3, Person making the amendment Relationship to the case Patent applicant address Address 2-11-50 Nonakaminami, Yodoyo-ku, Osaka City Name: Showa Rono Ri Co., Ltd. Representative: Takeshi Noguchi 4, Agent: ◎530 Address: 2-4-17-6 Tenjinbashi, Kita-ku, Osaka, Subject of amendment 7, Contents of amendment (1) Specification page 9 In the 9th line, “...5a・6a・
``...'' should be corrected to ``...5b, 6b...''.
・5b・6b...'' should be replaced with ``...5a・6a.
...” is corrected. (3) "...9a..." on page 10, line 12.
Correct it to "...9b...". (4) On page 11, line 14 of the same page, the phrase ``...some of the operating performance...'' was replaced with ``...the operating performance is somewhat...
”. (5) In the fourth line of page 14, the following sentence should be added between "...is provided." and "Also, this electricity..." [Of course, the internal battery 24 is not limited to a dry battery. Note that if a card battery is used as the internal battery 24, the indoor case 2 can be made thinner, improving the aesthetic appearance of the electric door lock 1, and the material cost can be reduced by the thinner indoor case 2. be able to. ” (6) On page 16, line 5 of the same page, “... will be operated (S
7). " is corrected to "operate... (S7)."that's all

Claims (1)

[Claims] 1. A projecting and retracting member that moves in and out in conjunction with the rotation of the handle, a locking/unlocking means for regulating the rotation of the handle, an electric actuator for driving the locking/unlocking means, and a card. In the electric door lock, the electric door lock includes a card reader that reads data recorded in the card reader, and a control means that controls the electric actuator based on the data read from the card reader, wherein the card reader reads the control means. Compare the value of the card data held by the controller with the value of the memory data held in the memory of the control means, and if the value of the card data is larger, drive the electric actuator to the unlocked state, and , an electric door lock characterized in that the memory data is erased and the card data is replaced as memory data. 2. A retractable member that appears and disappears in conjunction with the rotation of the handle, a locking/unlocking means for regulating the rotation of the handle, an electric actuator for driving the locking/unlocking means, and data recorded on the card. An electric door lock equipped with a card reader that reads the data, and a control means that controls the electric actuator based on the data read from the card reader, wherein a rewritable nonvolatile memory is provided as the memory of the control means. An electric door lock characterized by: 3. A retractable member that appears and disappears in conjunction with the rotation of the handle, a locking/unlocking means for regulating the rotation of the handle, an electric actuator for driving the locking/unlocking means, and data recorded on the card. In the electric door lock, the card reader is provided in the outdoor case of the electric door lock body, and the electric door lock is equipped with a card reader that reads the data, and a control means that controls the electric actuator based on the data read from the card reader. An electric door lock characterized by: 4. A retractable member that appears and disappears in conjunction with the rotation of the handle, a locking/unlocking means for regulating the rotation of the handle, an electric actuator for driving the locking/unlocking means, and data recorded on the card. In an electric door lock comprising a card reader that reads a card reader, and a control means that controls the electric actuator based on the data read from the card reader, a printed circuit board on which a weak electric element such as the control means is installed is connected to the card reader. An electric door lock characterized by being placed directly above the door. 5. A retractable member that appears and disappears in conjunction with the rotation of the handle, a locking/unlocking means for regulating the rotation of the handle, an electric actuator for driving the locking/unlocking means, and data recorded on the card. and a control means for controlling the electric actuator based on data read from the card reader, wherein power is supplied to at least the electric actuator, the card reader, and the control means. An electric door lock characterized in that a battery box into which a battery is loaded is built into an indoor case of the electric door lock body.