Electric lock device

Abstract

To provide an electric lock device whose flexibility and versatility of layout setting can be improved.SOLUTION: An electric lock device (10) includes a door knob (11), a magnet (13), a magnetic sensor (21), a communication unit, a lock mechanism (24), and a control unit. The door knob (11) is provided on a door of a building and is operated by an operator. The magnet (13) is mounted to the door knob (11) via a mounting member (13a). The magnetic sensor (21) detects the magnetic field of the magnet (13). The communication unit wirelessly communicates with a specified communication terminal. The lock mechanism (24) locks and unlocks the door. The control unit acquires specified information from the specified communication terminal by way of the wireless communication of the communication unit when a specified change in the magnetic field of the magnet (13) is detected on the basis of a signal outputted from the magnetic sensor (21), and causes the lock mechanism (24) to unlock the door when a collation of the specified information is completed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an electric lock device. [Background technology]

[0002] Conventionally, for example, an electric lock device has been known that has a switch inside the door that is operated in conjunction with the handle of the door of a building, and that starts the authentication process for unlocking by changing the contact state of the switch operated inside the door in response to the operator operating the handle (see, for example, Patent Document 1). Conventionally, for example, a system has been known which includes a magnetic sensor built into the movable part of a vehicle door handle and a magnet built into the fixed part, and which identifies whether the door lock has been released by changing the magnetic field of the magnet detected by the magnetic sensor in response to the operation of the door handle by an operator (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-65414 [Patent Document 2] Japanese Patent Application Laid-Open No. 2001-227205 Summary of the Invention [Problem to be solved by the invention]

[0004] However, according to the above-mentioned conventional electric locking devices and systems, the switch and switch operating portion, magnetic sensor and magnet are pre-placed inside the door and doorway, which creates the problem of reducing the freedom and versatility for changing or expanding the layout, etc.

[0005] The present invention aims to provide an electric lock device that can improve the freedom and versatility of layout settings. [Means for solving the problem]

[0006] In order to solve the above problems and achieve the above object, the present invention employs the following aspects. (1): An electric lock device (10, 10A) according to one embodiment of the present invention comprises an operating member (11) that is attached to a door of a building and that is operated by an operator; a magnet (13) and a magnetic sensor (21) that detects the magnetic field of the magnet; an attachment member (13a) that attaches the magnet or the magnetic sensor to the operating member and displaces the magnet or the magnetic sensor in response to operation of the operating member by the operator; a communication unit (22) that wirelessly communicates with a predetermined communication terminal (5); a locking mechanism (24) that locks and unlocks the door; and a control unit (25) that, when a predetermined change in the magnetic field is detected based on a signal output from the magnetic sensor, acquires predetermined information from the predetermined communication terminal by the wireless communication of the communication unit, and, when verification of the predetermined information is completed, causes the locking mechanism to unlock the door.

[0007] (2): In the electric lock device described in (1) above, the operating member comprises an indoor operating member and an outdoor operating member that are provided on the indoor and outdoor sides of the building and operate in conjunction with each other, and the magnet or the magnetic sensor may be attached to the indoor operating member.

[0008] (3) The electric lock device described in (2) above may include a magnetic member (41) attached to the magnetic sensor.

[0009] (4) The electric lock device according to any one of (1) to (3) above may include a movable mechanism (31) that changes the relative position of the magnet or the magnetic sensor. [Effects of the Invention]

[0010] According to (1) above, the magnet or magnetic sensor is attached to the operating member by the mounting member, which improves the freedom and versatility of layout setting compared to, for example, when the magnet and magnetic sensor are built into and fixed to a door or operating member, etc.

[0011] In the case of (2) above, the magnet or magnetic sensor is attached to the indoor side operating member, so that the desired security can be ensured. In the case of (3) above, by providing a magnetic member attached to the magnetic sensor, it is possible to improve the degree of freedom and versatility of layout setting. In the case of (4) above, by providing a movable mechanism for changing the relative position of the magnet or magnetic sensor, the degree of freedom and versatility of the layout setting can be improved. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a diagram illustrating the configuration of an electric lock device according to an embodiment of the present invention. [Figure 2] FIG. 1 is a block diagram showing the functional configuration of an electric lock device according to an embodiment of the present invention. [Figure 3] 10A and 10B are diagrams showing an example of displacement of a magnet interlocked with a doorknob of an electric lock device according to an embodiment of the present invention. [Figure 4] 1 is a cross-sectional view showing the configuration of a movable mechanism of a magnetic sensor of an electric lock device according to an embodiment of the present invention. [Figure 5] 4 is a flowchart showing the operation of an electric lock device according to an embodiment of the present invention. [Figure 6] FIG. 10 is a configuration diagram of an electric lock device according to a modified embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an electric lock device according to an embodiment of the present invention will be described with reference to the accompanying drawings. Fig. 1 is a configuration diagram of an electric lock device 10 according to an embodiment. Fig. 2 is a block diagram showing the functional configuration of the electric lock device 10 according to an embodiment. 1 and 2, an electric lock device 10 of the embodiment constitutes an electric lock system 1 that electrically locks and unlocks a door (not shown) of a building such as a house. The electric lock system 1 of the embodiment includes, for example, a communication terminal 5 carried by an operator and the electric lock device 10. The communication terminal 5 is a mobile information terminal such as a smartphone, a tablet terminal, a personal computer, etc. The communication terminal 5 transmits and receives various information to and from the electric lock device 10 via wireless communication of a predetermined standard such as Wi-Fi or Bluetooth (registered trademark).

[0014] The electric lock device 10 includes, for example, a pair of doorknobs 11 on the outdoor side and the indoor side, a magnet 13, and an electric lock 15. The doorknob 11 has, for example, a lever handle type outer shape. The pair of doorknobs 11 on the outdoor side and indoor side rotate in unison around a support part 11a attached to the door as the center of rotation. The doorknob 11 is gripped by the operator's fingers when opening or closing the door, and is rotated around the support part 11a as the center of rotation, causing a latch bolt (not shown) to slide relative to a strike (not shown) provided on the door frame (not shown).

[0015] Magnet 13 is attached, for example, to the indoor door knob 11. Magnet 13 is detachably attached to door knob 11 by, for example, an appropriate attachment member 13a. The appropriate attachment member 13a is, for example, a binding member such as a band made of an elastic material such as rubber, a resin or a metal, a fixing member such as a fixture, or an adhesive member such as adhesive tape. FIG. 3 is a diagram showing an example of displacement of the magnet 13 interlocked with the door knob 11 of the electric lock device 10 according to the embodiment. As shown in Figure 3, the magnet 13 rotates together with the indoor doorknob 11 around the support part 11a as the center of rotation in conjunction with the operator's rotation of the outdoor doorknob 11, thereby displacing relative to the magnetic sensor 21 of the electric lock 15 described later.

[0016] As shown in FIG. 2, the electric lock 15 includes, for example, a magnetic sensor 21, a communication unit 22, a drive unit 23, a lock mechanism 24, and a control unit 25. The magnetic sensor 21 is, for example, a Hall element or an MR element. The magnetic sensor 21 detects the magnetic field of the magnet 13. The magnetic sensor 21 outputs a signal corresponding to a change in the magnetic field of the magnet 13 caused by a rotation operation of the doorknob 11 by the operator's fingers. The magnetic sensor 21 is supported by a movable mechanism 31 provided inside the housing 15a of the electric lock 15 (see FIG. 4), for example.

[0017] FIG. 4 is a cross-sectional view showing the configuration of a movable mechanism 31 of a magnetic sensor of an electric lock device according to an embodiment. As shown in FIG. 4, the movable mechanism 31 is a mechanism that adjusts the position of the magnetic sensor 21 by allowing the magnetic sensor 21 to slide in accordance with the operation of an operator along a first direction X, such as a horizontal direction, and a second direction Y, such as a vertical direction, which are perpendicular to each other.

[0018] The movable mechanism 31 includes, for example, a pair of first guide members 32, a sensor support member 33, a pair of elastic support members 34, and a pair of second guide members 35. The first guide member 32 is, for example, a guide rail extending along the first direction X. The pair of first guide members 32 are arranged, for example, to face each other at a predetermined interval in the second direction Y. The pair of first guide members 32 include a pair of opposing surfaces 32a on which a plurality of irregularities, such as corrugations, are formed. The pair of opposing surfaces 32a support an elastic portion 33b of a sensor support member 33 (described later) so as to sandwich the elastic portion 33b from both sides in the second direction Y, and allow sliding movement along the first direction X accompanied by elastic deformation of the elastic portion 33b. The sensor support member 33 includes, for example, a support portion 33a that supports the magnetic sensor 21, and an elastic portion 33b fixed to the support portion 33a. When an external force acting along the first direction X is applied by an operation by an operator, the elastic portion 33b passes through the portions of the pair of opposing surfaces 32a where the gap is relatively narrow (i.e., the portions that are convex with respect to each other) while elastically deforming, and then releases the elastic deformation at the portions where the gap is relatively wide (i.e., the portions that are concave with respect to each other), thereby sliding in multiple stages along the first direction X.

[0019] The pair of elastic support members 34 are provided, for example, at both ends in the first direction X of the pair of first guide members 32. The second guide members 35 are, for example, guide rails or the like extending along the second direction Y. The pair of second guide members 35 are, for example, arranged to face each other at a predetermined interval in the first direction X. The pair of second guide members 35 have a pair of opposing surfaces 35a on which a plurality of irregularities, such as corrugations, are formed. The pair of opposing surfaces 35a support the pair of elastic support members 34 provided at both ends of the pair of first guide members 32 so as to sandwich them from both sides in the first direction X, and allow the pair of elastic support members 34 to slide along the second direction Y as they elastically deform. When an external force acts along the second direction Y due to operation by the operator, the pair of elastic support members 34 elastically deform as they pass through the relatively narrowly spaced areas of the pair of opposing surfaces 35a (i.e., the mutually convex areas), and then release the elastic deformation at the relatively widely spaced areas (i.e., the mutually concave areas), thereby sliding in multiple stages along the second direction Y.

[0020] As shown in FIG. 2, the communication unit 22 transmits and receives various information to and from the communication terminal 5 by wireless communication of a predetermined standard such as Wi-Fi or Bluetooth (registered trademark). The drive unit 23 includes an actuator such as an electric motor, and outputs power to the lock mechanism 24 . The locking mechanism 24 includes, for example, a thumb turn 24a that is rotated by an operator and a dead bolt (not shown) that slides relative to a strike (not shown) on a door frame (not shown). The locking mechanism 24 locks and unlocks the door by sliding the dead bolt in response to power input from the drive unit 23 or the operation of the operator via the thumb turn 24a.

[0021] The control unit 25 controls the operation of the electric lock device 10 in an integrated manner, for example. The control unit 25 includes a software function unit that functions when a processor such as a CPU (Central Processing Unit) executes a predetermined program. The software function unit is an ECU (Electronic Control Unit) that includes a processor such as a CPU, a ROM (Read Only Memory) that stores programs, a RAM (Random Access Memory) that temporarily stores data, and electronic circuits such as a timer. At least a part of the control unit 25 may be an integrated circuit such as an LSI (Large Scale Integration).

[0022] The control unit 25 controls the operations of the communication unit 22 and the drive unit 23 based on the signal output from the magnetic sensor 21. For example, when the control unit 25 detects a predetermined change in the magnetic field of the magnet 13 based on a signal output from the magnetic sensor 21, the control unit 25 acquires predetermined information from the communication terminal 5 via wireless communication by the communication unit 22. The predetermined information includes, for example, identification information such as an ID (identifier) ​​exclusively assigned to the communication terminal 5 and authentication information such as a password. For example, when the control unit 25 has completed matching of the predetermined information of the communication terminal 5, the control unit 25 activates the lock mechanism 24 using the power of the drive unit 23 to perform unlocking.

[0023] The operation of the electric lock device 10 in this embodiment, that is, the control operation executed by the control unit 25, will be described below. FIG. 5 is a flowchart showing the operation of the electric lock device 10 according to the embodiment. As shown in FIG. 5, first, the control unit 25 determines whether or not a predetermined change has occurred in the magnetic field of the magnet 13 based on the signal output from the magnetic sensor 21, thereby determining whether or not the doorknob 11 has been rotated by the operator's fingers (step S01). If the result of this determination is "NO", the control unit 25 repeats the process of step S01. On the other hand, if the result of this determination is "YES", the control unit 25 advances the process to step S02.

[0024] Next, the control unit 25 transmits a search signal from the communication unit 22 to identify predetermined communication terminals 5 present in the vicinity (step S02). Next, the control unit 25 determines whether or not an answer signal, which is a response to the search signal, has been received from a predetermined communication terminal 5 carried by the operator (step S03). If the result of this determination is "NO", the control unit 25 advances the process to the end. On the other hand, if the result of this determination is "YES", the control unit 25 advances the process to step S04.

[0025] Next, the control unit 25 executes a predetermined verification process based on predetermined information received from the communication terminal 5 upon establishment of a communication connection between the communication unit 22 and the communication terminal 5 (step S04). Next, the control unit 25 determines whether or not the matching of information such as pre-stored identification information and authentication information with the predetermined information received from the communication terminal 5 has been completed successfully (step S05). If the result of this determination is "NO", the control unit 25 advances the process to the end. On the other hand, if the result of this determination is "YES", the control unit 25 advances the process to step S06. Next, the control unit 25 causes the lock mechanism 24 to operate using the power of the drive unit 23, thereby executing unlocking (step S06), and then the process proceeds to END.

[0026] As described above, according to the embodiment of the electric lock device 10, the magnet 13 is attached to the doorknob 11 by the attachment member 13a, which improves the freedom and versatility of layout setting compared to, for example, when the magnet 13 is built into and fixed to the door or doorknob 11, etc. The magnet 13 is attached to the door knob 11 on the indoor side, so that desired security can be ensured. By providing the movable mechanism 31 that changes the relative position of the magnetic sensor 21, the degree of freedom and versatility of the layout setting can be further improved. When the control unit 25 detects a predetermined change in the magnetic field of the magnet 13 based on the signal output from the magnetic sensor 21, it automatically establishes a communication connection between the communication unit 22 and the communication terminal 5, thereby eliminating the need for an operator to operate the communication terminal 5 and improving convenience while suppressing an increase in power consumption required for wireless communication. The control unit 25 acquires predetermined information for the verification process from the predetermined communication terminal 5 through automatic wireless communication by the communication unit 22, eliminating the need for an operator to operate the communication terminal 5 and improving security.

[0027] (Variation) Modifications of the embodiment will be described below. Note that the same parts as those in the above-described embodiment will be denoted by the same reference numerals, and descriptions thereof will be omitted or simplified. In the above-described embodiment, a movable mechanism 31 is provided to change the relative position of the magnetic sensor 21, but this is not limited to this. For example, a magnetic member 41 of an appropriate shape may be provided to be attached to the magnetic sensor 21 depending on the relative position with respect to the magnet 13. FIG. 6 is a configuration diagram of an electric lock device 10A according to a modified example of the embodiment. 6, the electric lock device 10A of the modified example includes a magnetic member 41, such as a magnetic block of a predetermined shape, attached to the magnetic sensor 21. The predetermined shape is, for example, a shape that makes it easy to guide the magnetic flux of the magnetic field of the magnet 13 to the magnetic sensor 21 at a predetermined relative position. In this case, by providing the magnetic member 41 attached to the magnetic sensor 21, the degree of freedom and versatility of the layout setting can be improved.

[0028] In the above embodiment, the doorknob 11 has a lever handle type outer shape, but this is not limited to this and it may have other shapes, such as a so-called ball grip type. Also, while the doorknob 11 is operated by turning it, this is not limited to this and it may be formed with a mechanism that allows it to be operated by pulling it towards the operator, for example.

[0029] In the above-described embodiment, the magnet 13 is attached to the doorknob 11, but this is not limiting. For example, instead of the magnet 13, the magnetic sensor 21 may be detachably attached to the doorknob 11 by an appropriate attachment member, and the magnet 13 may be supported by the housing 15a of the electric lock 15 or the movable mechanism 31.

[0030] The embodiments of the present invention are presented as examples and are not intended to limit the scope of the invention. These embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are intended to be included within the scope and spirit of the invention, as well as within the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0031] 1...electric lock system, 5...communication terminal, 10, 10A...electric lock device, 11...door knob (operation member, indoor operation member, outdoor operation member), 13...magnet, 13a...mounting member, 15...electric lock, 21...magnetic sensor, 22...communication unit, 23...drive unit, 24...lock mechanism, 25...control unit, 31...moving mechanism, 41...magnetic member

Claims

1. an operating member provided on the door of the building and operated by an operator; an electric lock having either a magnet or a magnetic sensor that detects the magnetic field of the magnet, and a locking mechanism that locks and unlocks the door; an attachment member that attaches the other of the magnet and the magnetic sensor to the operation member, thereby displacing the other member in response to an operation of the operation member by an operator, thereby displacing the position of the other member relative to the one member; a communication unit that wirelessly communicates with a predetermined communication terminal; a control unit that, when detecting a predetermined change in the magnetic field based on a signal output from the magnetic sensor, acquires predetermined information from the predetermined communication terminal through the wireless communication of the communication unit, and, when matching of the predetermined information is completed, causes the lock mechanism to unlock the door; The electric lock is a housing provided with the locking mechanism; a movable mechanism that is provided on the housing and supports the one member so that the one member can slide in both a first direction and a second direction that are perpendicular to each other, thereby adjusting the position of the one member relative to the housing. An electric lock device characterized by:

2. the operating member includes an indoor-side operating member and an outdoor-side operating member that are provided on the indoor side and outdoor side of the building and operate in conjunction with each other, 2. The electric lock device according to claim 1, wherein the other member is attached to the indoor operating member.

3. a magnetic member attached to the magnetic sensor; 3. The electric lock device according to claim 2.

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