JP2005139853A - Electronic door locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic door locking device which carries out automatically locking/unlocking of a door utilizing as it is an existing mechanical lock without dismounting the same, facilitates installation thereof, and is produceable at a low cost. <P>SOLUTION: The electronic door locking device is formed of a housing 101; a locking member 102 protrudable into/withdrawable from the housing to carry out locking/unlocking of the door; and a locking member operating element 103 having a through hole formed at the center thereof so as to be opened to front and rear surfaces of the housing, for protruding/withdrawing the locking member. The electronic door locking device is comprised of an internal body 200 arranged inside the door; an external body 300 arranged outside the door and having a key pad 301 mounted on a front surface thereof; a control circuit section 201 for controlling operation of the locking member; a driving motor 202 for carrying out forward/backward driving by control of the control section; a reduction gear 203 for reducing the rotational speed of the driving motor; and a rotational force transmitting section 204 for engaging with the reduction gear, and being axially connected to the locking member operating element to transmit the rotational force of the reduction gear to the locking member operating element. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electronic door lock device, and more particularly to an electronic door lock device that can automatically lock or unlock a door while utilizing an already installed mechanical door lock device without disassembling. The present invention relates to a door lock device.

Generally, doors for entering and exiting indoors are provided with door lock devices for preventing unauthorized entry by outsiders. As such door lock devices, mechanical door lock devices and electronic doors are used. There are lock devices, which are independent and independent devices, and have only functions related to door opening and closing and security.
The mechanical door lock device can be locked and unlocked using a lever or a key inside or outside the door, and has an advantage that it is less expensive than an electronic door lock device. The structure is complicated, and it is necessary to always have a key. If the key is lost, it is difficult to open the door, and there is a risk that another person may unlock the door.
Therefore, in recent years, in order to solve the problems caused by the use of the mechanical door lock device as described above, an electronic door lock device that does not require a key or the like has been widely used.

Such an electronic door lock device adopts a keypad, fingerprint recognition machine, card reader, etc. so that the door can be automatically locked or unlocked using a motor or solenoid, etc. It is now possible to check in and out.
As described above, since the electronic door lock device performs the entrance / exit authentication process electrically and electronically, higher security can be obtained compared to the mechanical door lock device.
A technique relating to a conventional electronic door lock device having the above-described characteristics is disclosed in Document 1 below.
Republic of Korea Published Patent No. 2003-0019541

The electronic door lock device disclosed in the published patent is a door lock cylinder 110 provided inside one side of the door for locking or unlocking the door, and an interior provided inside the door in cooperation with the door lock cylinder 110. The body 120 and the door lock cylinder 110 are linked to the outer body 130 provided on the outside of the door and provided with a keypad 140 for inputting a password, and the inner body 120 and the outer body 130 can be rotated. It is provided with handles 122 and 132 provided.
Further, inside the door lock cylinder 110, a latch bolt 114 for maintaining the locked state of the door, a lock member 116 for locking or unlocking the door, and a drive motor 150 for operating the lock member 116 are provided. It has been.
The latch bolt 114 is operated by the rotation of handles 122 and 132 that are rotatably provided on the inner and outer bodies 120 and 130, respectively, regardless of the lock member 116.

However, the conventional electronic door lock device having the above-described configuration has several problems. First of all, when a mechanical door lock device or the like is not installed on the door to be installed, it is necessary to drill a part of the door to secure an installation space. .
Further, even if a mechanical door lock device or the like is installed on the door to be installed, if the sizes are different from each other, the installation work is not easy. In other words, if the size of the electronic door lock device to be installed is larger than that of the existing mechanical door lock device, the installation space may be expanded. If it is smaller than the type door lock device, the installation work becomes more difficult.
In addition, if a mechanical door lock device is already installed on the door to be installed, the existing device must be completely dismantled, and the dismantled existing device cannot be reused. However, there is also a problem of incurring economic loss because it only has to be disposed of.

  The present invention was made to solve the problems associated with the use of conventional electronic door lock devices, and the object of the present invention is to utilize existing mechanical door lock devices without disassembling them. It is another object of the present invention to provide an electronic door lock device that automatically locks or unlocks a door, is easy to install, and can be reduced in cost.

Therefore, in order to achieve the above-described problems of the present invention, the following measures were taken. That is,
The electronic door lock device according to claim 1 is a housing provided inside one side of the door, a lock member provided so as to be able to protrude and retract on one side inside the housing, and a lock member for unlocking or unlocking the door, and rotatable to the housing. A locking member actuating tool provided with a locking member that protrudes and retracts to form a through-hole opened at the front and rear surfaces of the housing at the center, and is mounted inside the door and has a built-in battery. Internal body, external body with a keypad attached to the outside of the door to enter the security code and opening the door, and a control circuit section that controls the operation of the lock member built in the internal body And a drive motor that is built in the internal body and that is driven forward / reversely under the control of the control circuit, and a motor that is built in the internal body and reduces the rotational force of the drive motor. And machine, the technical characteristics by comprising a rotational force transmitting portion for transmitting the rotational force of the operation device and the shaft coupled to the reduction gear of the reduction gear and meshing locking member to the locking member operation device.

  The electronic door lock device according to claim 2, wherein in the above means, the rotational force transmitting portion meshes with an output side gear of the speed reducer and rotates, and one end portion of the rotational force transmitting gear. The other end is mounted at the center and includes a rotational force transmission shaft that is axially coupled to the through hole of the lock member actuating tool.

  The electronic door lock device according to claim 3 is the electronic door lock device according to claim 2, wherein the rotational force transmission shaft electrically connects the keypad and the control circuit unit. It is characterized by being tubular so that the signal line can penetrate therethrough.

  According to a fourth aspect of the present invention, there is provided the electronic door lock device according to the second or third aspect, wherein a pair of extension portions are extended at positions facing each other on the edge of the rotational force transmission gear. The gear teeth formed on the edge of the rotational force transmission gear and meshing with the speed reducer are formed only on one side with the extension as a reference.

  An electronic door lock device according to a fifth aspect is the electronic door lock device according to the fourth aspect, wherein the electronic door lock device is provided in the inner body so as to be separated from the left and right above the rotational force transmission gear. It is characterized by comprising a pair of sensing sensors that respectively sense the extension during rotation and transmit a sensing signal to the control circuit.

  According to the electronic door lock device of the present invention, the door can be automatically locked or unlocked while being utilized as it is without disassembling the existing mechanical door lock device, and the installation work is easy. Cost reduction effect can be obtained.

Hereinafter, preferred embodiments of the electronic door lock device according to the present invention will be described in detail to explain the characteristics and operation of the configuration of the present invention.
As shown in FIGS. 1 and 2, an electronic door lock device according to an embodiment of the present invention includes a lock member 102 provided inside one side of the door 2 for locking or unlocking the door 2. , A lock body 100 incorporated so that the latch bolt 104 can appear and disappear, an internal body 200 attached to the inside of the door 2, an external body 300 attached to the outside of the door 2 and adapted to input a personal identification number outside, and an internal Handles 400 and 400 ′ which are rotatably attached to the body 200 and the external body 300 and cause the latch bolt 104 to appear and disappear are provided.

As shown in FIGS. 1 and 3, the lock body 100 described above is provided with a housing 101 provided inside one side of the door 2, and is provided so as to be able to project and retract on one side inside the housing 101. A lock member 102 that performs rotation, a lock member actuating tool 103 that is rotatably provided on the housing 101 and moves forward and backward, and a latch bolt 104 that is provided on one side of the housing 101 and can be moved in and out to maintain the locked state of the door 2. And a latch bolt actuating tool 105 that is rotatably provided in the housing 101 and moves the latch bolt 104 forward and backward.
At this time, the end portion of the lock member 102 protrudes to one side of the housing 101 and is inserted into a first hole (not shown) provided inside the door frame to lock the door, and the latch bolt 104 Similarly, the end portion protrudes to one side of the housing 101 and is inserted into a second hole (not shown) formed inside the door frame to maintain the door locked state.

A transmission shaft through hole 1031 is formed at the center of the lock member actuating tool 103 and is opened to the front and rear surfaces of the housing 101 and is coupled to a rotational force transmission shaft 2042 of a rotational force transmission portion 204 described later. Inside the hole 1031, a pair of anti-rotation protrusions 1032 that engage with an anti-rotation groove 2045 formed at the end of the rotational force transmission shaft 2042 to prevent the rotational force transmission shaft 2042 from idling are formed to face each other. The
Further, when the lock member 102 is to be moved forward and backward, the lock member actuating tool 103 is inserted into a first locking groove 1021 formed on one side of the rear end portion of the lock member 102. The first locking protrusion 1033 extends integrally.

Therefore, when the lock member operating tool 103 is rotated counterclockwise in the drawing, the first locking protrusion 1033 urges the rear wall of the first locking groove 1021 to move the lock member 102 backward. The end of the lock member 102 is detached from the first coffin hole of the door frame, and thereby the door 2 is unlocked.
On the contrary, when the lock member actuating tool 103 is rotated in the clockwise direction in the drawing in a state where the door 2 is unlocked, the first locking protrusion 1033 is formed in the first locking groove 1021. In order to advance the lock member 102 by urging the front wall, the end of the lock member 102 protrudes to one side of the housing 101 and is inserted into the first coffin hole, whereby the door 2 is locked.

Note that a square interlocking shaft through hole 1051 through which an interlocking shaft 403 for connecting and interlocking operating shafts 401 and 401 ′ of handles 400 and 400 ′, which will be described later, is formed at the center of the latch bolt operating tool 105. Is formed.
Further, on one side of the latch bolt actuating device 105, when the latch bolt 104 is to be moved backward, a second engagement that is engaged with a second engagement groove 1041 formed at the rear end portion of the latch bolt 104 is provided. A stop protrusion 1052 protrudes integrally, and a biased protrusion 1053 that is always urged rearward by the spring force of the first spring 106 is integrally provided on the other side.
Therefore, when the door 2 is not opened, the biased protrusion 1053 is urged rearward by the spring force of the first spring 106, and is always positioned rearward. On the contrary, the second locking protrusion Since the portion 1052 is always located at the front, the latch bolt 104 always keeps being advanced by the spring force of the second spring 107 at the rear, and the end of the latch bolt 104 is located on one side of the housing 101. It protrudes and is inserted in the 2nd hole of a door frame, and, thereby, the locked state of the door 2 is maintained.

On the other hand, when the handles 400 and 400 ′ are rotated to release the locked state of the door 2 and open the door 2, the latch bolt actuating device 105 rotates in the clockwise direction on the drawing while the second locking projection. Since 1052 urges the rear wall of the second locking groove 1041, the latch bolt 104 moves backward, and the end of the latch bolt 104 is disengaged from the second hole so that the user can move the door 2. Is pulled, the door 2 is opened.
As shown in FIGS. 1, 4 to 6, the inside body 200 described above includes a control circuit unit 201 that controls the operation of the lock member 102, and a drive motor 202 that is driven forward and reverse by the control of the control circuit unit 201. A reduction gear 203 for reducing the rotational force of the drive motor 202, a rotational force transmission unit 204 that meshes with the reduction gear 203 and is axially coupled to the locking member actuator 103 and transmits the rotational force of the reduction gear 203 to the locking member actuator 103, A battery 205 for applying power to the drive motor 202 is incorporated.

At this time, the drive motor 202 and the speed reducer 203 are fixedly supported on the inner back surface of the inner body 200 by the support 206, and the support portion 206 includes a fixed panel 2061 to which the drive motor 202 and the speed reducer 203 are fixed, and a fixed panel. A plurality of support protrusions 2062 that support 2061 on the inner back surface of the inner body 200 are configured.
The speed reducer 203 includes a plurality of spur gears 2031, 2032, 2033, and 2034 having different diameters, and a rotational force transmission unit from the drive pulley 2022 side that is axially coupled to the drive shaft 2021 of the drive motor 202. The meshing is performed in the order of increasing diameter as it goes to the 204 side, and the rotational force of the drive motor 202 transmitted to the rotational force transmission unit 204 is sufficiently decelerated.

The rotational force transmission unit 204 is engaged with the output side spur gear 2034 of the speed reducer 203 and rotates. One end of the rotational force transmission unit 204 is attached to the center of the rotational force transmission gear 2041 and the other end of the lock member actuator 103. A rotational force transmission shaft 2042 that is axially coupled to the transmission shaft through-hole 1031 and a pair of extensions 2043 and 2043 ′ extending from the edge of the rotational force transmission gear 2041 so as to face each other.
At this time, gear teeth 2044 that are formed at the edge of the rotational force transmission gear 2041 and mesh with the output-side spur gear 2034 of the speed reducer 203 are formed only on one side with reference to the extended portions 2043 and 2043 ′.

Therefore, the rotational force transmission gear 2041 meshes with the output side spur gear 2034 of the speed reducer 203 only within the range of the gear teeth 2044 formed between the extensions 2043 and 2043 ′.
Further, the rotational force transmission shaft 2042 has a hollow tubular shape so that a signal line for electrically connecting the control circuit unit 201 and a keypad 301 of the external body 300 described later can pass therethrough. A plurality of anti-rotation grooves 2045 that prevent rotation of the rotational force transmission shaft 2042 by engaging with the anti-rotation protrusion 1032 of the lock member actuating tool 103 are formed at the other end of the lock member actuating tool 103 apart from each other. A signal line through hole 2046 for draining an internal signal line to the outside is formed at a predetermined position on one end.

The battery 205 applies power to each device provided in the inner outer body 200, 300, and is inserted into the battery housing groove 207 formed in the upper front portion of the inner body 200. Is shielded by a battery cover 208.
In addition, above the rotational force transmission gear 2041, when the rotational force transmission gear 2041 is rotated, the extension portions 2043 and 2043 ′ are sensed, respectively, and a signal is sent to the control circuit portion 201 so that the driving of the driving motor 202 is stopped. A pair of sensing sensors 209 and 209 ′ for transmission is provided apart from each other on the left and right.

  Therefore, when the rotational force transmission gear 2041 meshes with the output side spur gear 2034 of the speed reducer 203 and rotates, if one end of the gear teeth 2044 of the rotational force transmission gear 2041 meshes with the output side spur gear 2034, the other side sensing sensor 209. ′ Senses the position of the extension 2043 on the other side, and the drive motor 202 stops. Similarly, when the other end of the gear tooth 2044 meshes with the output-side spur gear 2034, the one-side detection sensor 209 is activated. The position of the extension 2043 on one side is sensed, and the drive motor 202 is stopped.

Also, a lock / unlock key 210 is provided on the front surface of the inner body 200 so that the lock member 102 can be moved forward and backward in the room to lock or unlock the door.
In addition, a safety key 211 is provided at the upper end of the inner body 200 so that the door 2 cannot be opened by blocking key input from the outside. The safety key 211 is turned on and off from the outside. The key input is blocked or the blocked state is released.

In addition, through holes 212 and 213 through which one end of an operating shaft 401 and an interlocking shaft 403 of a handle 400 to be described later pass are formed in the lower front portion and the rear portion of the inner body 200, respectively.
As shown in FIGS. 1, 7 and 8, the external body 300 is provided with a keypad 301 for inputting a personal identification number on the front surface and a handle 400 ′ described later on the lower front surface. Through-holes 302 and 303 through which the other end of the operating shaft 401 ′ and the interlocking shaft 403 penetrate are formed.

At this time, the keypad 301 notifies the control circuit unit 201 of the completion of the number input after inputting the password using the number key 3011 for inputting the password and the number key 3011 when setting the password. It includes a setting key 3012 for a function and a function for locking the door 2, a start / end key 3013 for notifying the start and end of input of a password, and a bell key 3014 for a doorbell function.
As shown in FIG. 1, the handles 400, 400 ′ are rotatably provided in through holes 212, 302 formed in front portions of the inner body 200 and the outer body 300, respectively. Actuating shafts 401 and 401 ′ each having a fixing groove 401a into which both ends are inserted and coupled, and gripping portions 402 and 402 ′ that are provided at the other end of the operating shafts 401 and 401 ′ and can be gripped by hand, Consists of.

Here, the cross section of the interlocking shaft 403 has a quadrangular shape so as to correspond to the shape of the interlocking shaft through hole 1051 of the latch bolt actuating device 105, and the fixing shaft 401a of the operating shafts 401 and 401 ′ has a rectangular cross-sectional shape. .
Reference numeral 304 denotes a cover that shields the keypad 301 of the external body 300.

The operation of the electronic door lock device according to one embodiment of the present invention having the above-described configuration will be described below.
When the user comes home with the door locked, first, the user presses the start / end key 3013 of the keypad 301 attached to the front surface of the external body 300, and inputs the password using the numeric keys 3011. Thereafter, the start / end key 3013 is pressed again.

At this time, if the pressed number matches the password set in advance in the control circuit unit 201, the drive motor 202 is operated by the control of the control circuit unit 201, and the rotational force of the drive motor 202 is reduced. After being sufficiently decelerated by the machine 203, it is transmitted to the lock member actuator 103 via the rotational force transmission unit 204.
When the driving force of the drive motor 202 is transmitted to the lock member actuating tool 103 in this way, the lock member actuating tool 103 rotates counterclockwise in the drawing, and the first locking projection 1033 is in the first engagement. By energizing the rear wall of the stop groove 1021 and moving the lock member 102 backward, the end of the lock member 102 is detached from the first hole of the door frame, and thereby the door 2 is unlocked. The

Here, in the rotation process of the rotational force transmission unit 204, the extension portions 2043 and 2043 ′ extending to the edge of the rotational force transmission gear 2041 rotate within a certain range, and then detected by the detection sensors 209 and 209 ′. Then, the drive motor 202 is stopped by the control of the control circuit unit 201, whereby the rotation of the rotational force transmitting unit 204 is stopped, and the lock member 102 is stopped in a state where it is moved backward by a certain distance.
If the number input via the keypad 301 does not match the password set in advance in the control circuit unit 201, the drive motor 202 is not driven by the control of the control circuit unit 201, and the door 2 is locked. Is not released.

  On the other hand, after the number input via the keypad 301 coincides with the password set in the control circuit unit 201 in advance and the door 2 is unlocked, the handle attached to the external body 300 by the user When 400 ′ is rotated, the latch bolt actuating portion 105 rotates clockwise in the drawing, and the second latching protrusion 1052 urges the rear wall of the second latching groove 1041 rearward to latch latch bolt. 104 moves backward, whereby the end of the latch bolt 104 is detached from the second hole, and when the user pulls the door 2, the door 2 is opened.

Further, in order to continuously release the locked state of the door 2 while the user is indoors, the lock / unlock key 210 can be operated, and the safety key 211 can be operated while the door 2 is locked. If the switch is turned on, the lock member 102 does not work even if another person tries to open the door 2 by operating the keypad 301 outdoors, and on the contrary, the safety key 211 is turned off while the door 2 is locked. In other words, another person can open the door 2 by operating the keypad 301 outdoors.
The electronic door lock device according to the embodiment of the present invention has been described with reference to the accompanying drawings. However, the above embodiment is only an example, and the present invention is limited only to such a case. It goes without saying that it is not a thing. Various modifications can be implemented within the scope of the technical idea of the present invention.

1 is an exploded perspective view of an electronic door lock device according to an embodiment of the present invention. The side view which shows the installation state of the apparatus. The schematic sectional drawing of the internal structure of the locking member in the Example. The schematic sectional side view of the internal structure of the internal body in the Example. The general | schematic front sectional view of the internal structure of the internal body in the Example.

The front view of the internal body in the Example. The schematic sectional side view of the internal structure of the external body in the Example. The front view of the external body in the Example.

Explanation of symbols

1 .. Electronic door lock device 100.. Lock body 101.. Housing 102.. Lock member 103.. Lock member actuator 104.. Latch bolt 105. Circuit part 202 ..Drive motor 203 ..Speed reducer 204 ..Rotational force transmission part 205 ..Battery 206 ..Support 207 ..Battery housing groove 208 ..Battery cover 209, 209 '.. Sensing sensor 300 .. External body 301 ・ ・ Keypad 400,400 '・ ・ Handle

Claims (5)

A housing provided inside one side of the door, a lock member provided on one side of the housing so as to be able to appear and retract, and a lock member for locking or unlocking the door; In a door lock device comprising: a lock member operating tool in which a through hole opened in the front and rear surfaces of the housing is formed in the center portion;
An internal body attached to the inside of the door and incorporating a battery;
An external body attached to the outside of the door and provided with a keypad on the front surface for inputting a password and opening the door;
A control circuit part built in the internal body and controlling the operation of the locking member;
A drive motor built in the internal body and driven forward and reverse by control of the control circuit unit;
A speed reducer built in the internal body and decelerating the rotational force of the drive motor;
A rotational force transmitting portion that meshes with the speed reducer and is axially coupled to the operating member of the lock member and transmits the rotational force of the speed reducer to the locking member operating tool;
An electronic door lock device comprising:   The rotational force transmission unit is a rotational force transmission gear that meshes with and rotates with the output side gear of the speed reducer, one end is attached to the center of the rotational force transmission gear, and the other end is a through hole of the lock member operating tool. The electronic door lock device according to claim 1, further comprising: a rotational force transmission shaft that is axially coupled to the shaft.   3. The electronic door according to claim 2, wherein the rotational force transmission shaft is tubular so that a signal line for electrically connecting the keypad and the control circuit unit passes therethrough. Locking device.   A pair of extension portions are extended at positions facing each other at the edge of the rotational force transmission gear, and the gear teeth formed on the edge of the rotational force transmission gear and meshing with the speed reducer include the extension portion. 4. The electronic door lock device according to claim 2, wherein the electronic door lock device is formed only on one side as a reference.   A pair of sensing sensors which are provided in the inner body so as to be separated from each other on the upper side of the rotational force transmission gear, sense the extensions when the rotational force transmission gear rotates, and transmit a sensing signal to the control circuit unit. The electronic door lock device according to claim 4, comprising:

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