JP2006063530A - Emergency unlocking device of electronic lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of being forced in a shutting-out state up to waiting for the arrival of an expert dealer, without having a means for operating a bolt member (a dead bolt) from an external part, when failure is caused in a control circuit and a mechanism, in a conventional electronic lock. <P>SOLUTION: This emergency unlocking device of the electronic lock has a lock lever for putting its bolt member in a locking state by engaging the bolt member in a receiving mechanism of the bolt member taken in and out of an electronic lock body; and its lock lever releases the locking state by sliding or rotating by input from the outdoors. The electronic lock body is fixed to an installation plate for pivotally moving in the indoor side direction to a baseplate fixed to an indoor side surface of a door. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to an emergency unlocking device for an electronic lock, and in particular, is attached to an entrance of a building or an entrance of each room. The present invention relates to an emergency unlocking device for electronic locks.

  In general, electronic locks have a great effect as a so-called picking measure because there is no need for a keyhole to insert a key, unlike a lock key device that operates a lock mechanism using a key. Hiring is increasing.

  The electronic lock is used instead of a general key to send a signal for locking and unlocking by radio or light to the control circuit, and the hook member (dead bolt) is operated using a transmission mechanism such as a gear or a solenoid. Therefore, electric power as a driving source must be obtained from a built-in battery, a commercial AC power source, or a solar cell (solar battery charger).

  In addition, electronic locks are now attracted by magnets automatically when a door is closed, and a saddle member (dead bolt) is activated to increase the number of locked systems. If the electronic key (remote controller) is misplaced or lost, it cannot be unlocked due to a malfunction of the control circuit, or if the built-in battery is exhausted or a commercial AC power supply is used due to a power failure. There was a possibility of becoming a state.

  Therefore, the present inventor has developed an electronic lock as shown in FIG. In FIG. 10, reference numeral 1 denotes a swing type door pivotally supported at one edge in the vertical direction, and 2 denotes a door frame. The door 1 is installed as an outside opening, and an electronic lock body 4 is fixed to the upper side of the indoor side via an attachment member 3.

  The electronic lock body 4 is provided with a saddle member (dead bolt) 5 that enters and exits using a motor driven by a built-in battery as a drive source. The saddle member (dead bolt) 5 is fixed to the door frame 2. The front end of the receiving hole 7 formed by the receiving member 6 is inserted into a locked state.

  Reference numeral 8 in the figure denotes a cable having one end connected to a control circuit in the electronic lock body 4. The end of the cable 8 is guided to the outdoor side through a gap between the door 1 and the door frame 2, and Are provided with auxiliary power terminals 9a and 9b for obtaining power from a commercially available 9V battery and a light receiving element 10 for obtaining an unlocking signal.

  With the above-described structure, when the battery built in the electronic lock body 4 is exhausted, it is possible to sufficiently deal with it and operate the hook member (dead bolt) to enter the unlocked state.

However, even if the control circuit or mechanism has failed even if it has the structure described above, it is impossible to operate the eaves member (dead bolt) 5 from the outside. Will be necessary, and it will be in the locked-out state for a long time.
Application documents for Japanese Patent Application No. 2004-10446

  The problem to be solved by the present invention is that in the case of a conventional electronic lock, when a failure occurs in its control circuit or mechanism, there is no means for operating a saddle member (dead bolt) from the outside, and there is no need for specialization. It is a point that the locked-out state is forced until waiting for the arrival of the trader.

  In order to solve the above-described problems, an emergency unlocking device for an electronic lock according to the present invention is a lock bar that is engaged with a hook member receiving mechanism that is put in and out of the main body of the electronic lock so as to be locked. The lock bar is slid or rotated by an input from the outside to release the locked state, and the receiving mechanism has an electronic circuit for control, and the electronic circuit and the electric circuit And a gear mechanism that is operated by the drive motor and operates the lock bar described above, and the electronic circuit has a cable that leads to the outdoor side. The cable has at least a power supply terminal and a light receiving element for receiving an unlocking signal at the end of the cable, and the lock bar has a rack on the outer surface. Is is a bridged state with respect to the cutout portion for receiving a locking bar described above, it is characterized in that is penetrated by the guide box has intended to slide.

  The emergency unlocking device for an electronic lock according to the present invention has a light receiving element for receiving an unlocking optical signal from a repeater operating via a room telephone and an antenna for receiving radio waves on the indoor side in the electronic circuit described above. It is characterized in that it is electrically connected.

  Furthermore, in the emergency unlocking device for an electronic lock according to the present invention, the electronic lock main body is fixed to a mounting plate that pivots in the indoor side direction with respect to a base plate fixed to the indoor side surface of the door. The pivot hinge portion of the base plate and the mounting plate is provided with a spring for biasing the mounting plate in the pivoting direction, and a recess is formed in the substantially central portion of the mounting plate. It is formed and the electronic lock main body is fixed to the recess.

  In the emergency unlocking device for an electronic lock according to the present invention, the free end side of the mounting plate is a bent piece bent at a substantially right angle, and at least one engaging through hole is formed in the bent piece. And a gear mechanism in which a rack is formed on the outer surface of the lock rod and meshes with the rack. The base plate is equipped with a control unit for controlling the drive motor and controlling the position of the lock rod, and the tip is guided to the outside by the control unit. Characterized in that the cable is provided with at least an auxiliary power supply terminal and a light receiving element for receiving an unlocking signal. Receiving element for receiving a signal from the repeater to operate through is characterized by being electrically connected.

  The electronic lock emergency unlocking device according to the present invention is configured as described above. Therefore, in the event of an emergency, there is no need to forcibly push the collar member (dead bolt) into the electronic lock body. In particular, in the case of an inwardly open door, only the lock bar of the receiving mechanism is operated. You can open the door.

  In addition to the above, in the case of an outwardly opening door, the engagement state by the saddle member (dead bolt) is released by pivoting the mounting plate with the electronic lock body attached to the base plate, and the door Can be opened.

  This is realized by configuring as in the embodiment shown in FIGS.

  Next, a preferred embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view showing an example in which the present invention is implemented for an outer opening door, FIG. 2 is a perspective view showing the receiving mechanism, FIG. 3 is a cross-sectional view showing an example in which the inner opening door is also implemented, and FIG. FIG. 5 is a block diagram corresponding to a plurality of doors, FIG. 6 is a perspective view showing a mounting mechanism of the electronic lock body, and FIG. 7 is a perspective view showing the door according to the present invention. FIG. 8 is a perspective view showing a state where a mounting plate is set on a base plate, and FIG. 9 is a perspective view showing another example.

  The embodiment will be described from the case of the door 1a having an inward opening structure. In FIG. 3, an electronic lock main body 4 provided with a hook member (dead bolt) 5 facing upward is fixed to the indoor side of the door 1 a, and the door frame 2 has a hook member (dead). A receiving mechanism 11 that receives the bolt 5 and is locked is fixed.

  The receiving mechanism 11 has a structure shown in FIG. The receiving mechanism 11 has a bottom plate 12, and integrally forms a rising wall 12 a that rises in two directions at right angles from the rear edge of the bottom plate 12. A notch 13 through which the eaves member (dead bolt) 5 enters and exits is formed in a part of the bottom plate 12.

  A rectangular parallelepiped guide box 14 is mounted on the bottom plate 12, and a lock bar 15 is slidably provided through a through hole formed in the guide box 14. The tip of the lock bar 15 is fitted into a through hole 12b provided in the rising wall 12a. The lock bar 15 corresponds to the notch 13 described above, and becomes an engaging material when the flange member (dead bolt) 5 enters the notch 13 and constitutes a locked state.

  On the other hand, reference numeral 16 in the drawing denotes a drive motor, and a worm gear 17 is attached to the motor shaft of the drive motor 16. The worm gear 17 is meshed with the gear 18 to rotate the gear 18. A pinion 19 is provided on the shaft of the gear 18 and is rotated in synchronization with the gear 18. The pinion 19 is engaged with a rack formed on the outer surface of the lock bar 15 to slide the lock bar 15.

  The drive motor 16 described above is controlled by being electrically connected to an electronic circuit 20 mounted on the inner surface of the rising wall 12a. A cable 21 is connected to the electronic circuit 20, and the end of the cable 21 is led to the outside through a gap between the door 1 a and the door frame 2, and a double-faced tape or the like is fixed to the outdoor surface of the door frame 2. It is fixed through the material.

  At the tip of the cable 21, auxiliary power terminals 23a and 23b for receiving power from the 9V dry battery 22 are provided, and a light receiving element 24 for receiving an infrared signal is provided.

  Further, a light receiving element 25 facing the indoor side is also electrically connected to the electronic circuit 20 described above, so that it is possible to receive a transmission signal from a repeater acting via the indoor telephone. . The electronic circuit 20 is equipped with an antenna 60 so that input can be performed by radio waves.

  In the figure, reference numeral 26 denotes a casing cover, which is configured as a rectangular box as a whole corresponding to the bottom plate 12 and the rising wall 12a. The casing cover 26 is also formed with a fitting hole 26 a of the lock bar 15 and a mounting hole for the light receiving element 25. Reference numerals 27, 27... Denote screw holes for attaching the casing cover 26, and 28 denotes a notch for passing the cable 21 therethrough.

  In the case of the door 1a with the inner opening shown in FIG. 3, since the hook member (dead bolt) 5 is merely engaged with the lock bar 15 in the receiving mechanism 11, the lock bar 15 is slid to release the engagement. Then, the door 1a can be pushed open indoors. When the electronic lock body 1 fails, the 9V dry battery 22 is connected to the auxiliary power terminals 23a and 23b by hand, and when the unlock switch 52b of the electronic key 52 is pressed, an unlocked encryption signal by infrared light is sent to the light receiving element 24. The electronic circuit 20 is activated, the lock bar 15 slides and opens, and the dead bolt 5 can go out of the notch 13 and the door 1a can be opened. The radio waves transmitted from the remote control can be received by the antenna 60 and equivalent.

  However, when the door 1 is opened outward, the hook member (dead bolt) 5 cannot be engaged with the door frame 2 and opened only by removing the lock bar 15. Therefore, in the case of the outward opening type door 1, a mechanism as shown in FIG. 6 is used in addition to the receiving mechanism 11.

  In the figure, reference numeral 29 denotes a base plate fixed by screws 30, 30... Above the inner surface of the door 1, and 31, 31... Are screw holes through which the screws 30, 30. A pivot shaft 32 is provided at the lower end edge of the base plate 29 via a hinge 33, and a mounting plate 34 is pivotably provided. The electronic lock body 4 is fixed to the outer surface of the mounting plate 34.

  The above-mentioned hinge 33 is assembled with a not-shown string spring or the like, which always urges the mounting plate 34 in the pivot direction. The mounting plate 34 has a configuration in which upper and lower end edges are bent in an L shape so that when the base plate 29 is covered, a mechanical part can be accommodated in a rectangular tube shape. One or more later-described lock rod through-holes 35, 35 are fitted.

  On the other hand, a control unit 36 is mounted on the base plate 29, and the lifting / lowering drive motor 38 of the lock rods 37 and 37 is controlled by the control unit 36. The number of the lock rods 37, 37 is matched with the through holes 35, 35,.

  A worm gear 39 is attached to the motor shaft of the lift drive motor 38, and the gear 40 is engaged with the worm gear 39 to rotate the gear 40. A pinion 41 is attached to the shaft of the gear 40, and the pinion 41 meshes with a rack 42 formed on the outer surface of the lock rod 37 to move the lock rod 37 up and down.

  Further, a cable 43 is connected to the control unit 36 described above, and the cable 43 is guided to the outdoors through the gap between the door 1 and the door frame 2, and the tip thereof is fixed to the outer surface of the door 1. . The front end of the cable 43 is also provided with auxiliary power terminals 44a and 44b for obtaining power by the 9V dry battery 22 and a light receiving element 45 for receiving a signal wave. Reference numeral 29 a denotes a notch formed in the base plate 29 for guiding the cable 43.

  Further, 46 and 46 in the figure are guide boxes for the lock rod 37, which are fixed to the base plate 29, and the lock rod 37 moves up and down through the through holes formed at the top and bottom of the guide box 46. 47 is a limit switch when the lock rod 37 is lowered, and 48 is a position detection sensor.

  Reference numeral 49 denotes a decoder which can be integrated with the control unit 36 as required. The decoder 49 is electrically connected to a light receiving element 50 which receives a signal from a repeater acting via an indoor telephone. ing. Reference numeral 51 denotes a closing confirmation switch for the mounting plate 34 that can be attached to either the base plate 29 or the mounting plate 34. When the mounting plate 34 is closed and this switch 51 is input, the lock rod 37 that has been lowered, 37 rises and the upper end is inserted into the through holes 35 and 35 to restore the initial state.

  In the figure, reference numeral 52 denotes an electronic key (remote controller), 52a denotes a lock switch, 52b denotes an unlock switch, and 53 denotes a signal wave (infrared) light emitting element. And 5a is attached to the eaves member (dead bolt) 5, The manual operation element which can operate the eaves member (dead bolt) 5 manually from the indoor side, 4a has shown the elongate hole for the guide. When the electronic lock body 4 of the swing door 1 is broken, the 9V dry battery is pressed against the auxiliary power terminal of the cable of the receiving mechanism 11, the unlocking signal is sent by the remote controller, the lock bar 15 is slid, and then the auxiliary power of the cable 43 is The 9V dry battery 22 is pressed against the terminals 44a and 44b, an unlocking signal is sent by the remote controller, the lock rod 37 is lowered, and the dead bolt 5 of the electronic lock body 4 is received together with the mounting plate 34 by the force of the spring so as to fall from the notch 13 of the mechanism 11. The door 1 can be opened by going outside.

  Furthermore, as shown in FIG. 9, a configuration in which a concave portion 54 is formed on the surface of the mounting plate 34 and the electronic lock body 4 is fitted into the concave portion 54 is conceivable. The taste can be kept thin, and the appearance when installed on the door 1 can also be good.

  The telephone unlocking system described above is configured as shown in FIGS. In the figure, 55 indicates an indoor telephone, and 56 is a repeater connected by a line. The repeater 56 is provided with a light emitting element 57 that emits an infrared ray as an unlocking signal by inputting a code number or the like, and an input is made from the light emitting element 57 to the light receiving elements 25, 50, and the like. In this case, if there is an obstacle in the middle, an optical cable or the like may be interposed. Further, a transmitting antenna (not shown) is used instead of the light emitting element 57, and the light receiving elements 25 and 50 also use radio waves as receiving antennas. It is also possible.

  Further, as shown in FIG. 5, an electronic lock mounted on a plurality of doors 1, 1a, sliding doors 1b, etc. by branching a signal from one repeater 56 with an optical fiber 59 using an optical fiber 59. It is also possible to operate the main bodies 4 and 4 or the receiving mechanisms 11 and 11 etc. and simultaneously unlock them, and there is no need to associate the relay 56 with each electronic lock main body 4.

  The embodiment of the present invention is configured as described above. In this embodiment, the lock bar 15 of the receiving mechanism 11 is configured to slide. This depends on the mounting position of the electronic lock body 4, but can also be rotated horizontally or vertically. In addition, there is a mounting plate 34 for mounting the electronic lock body 4 pivoting with respect to the base plate 29, but this can also be replaced with a configuration in which the mounting plate 34 is slid with respect to the base plate 29.

It is sectional drawing which shows the example which implemented this invention about the outward door. It is a perspective view which shows a receiving mechanism. It is sectional drawing which shows the example implemented about the inner opening door. It is a block diagram which shows a telephone unlocking system. It is a block diagram in the case of respond | corresponding to a some door. It is a perspective view which shows the attachment mechanism of an electronic lock main body. It is a fragmentary perspective view at the time of seeing the door which implemented this invention from the outdoors. It is a perspective view which shows the state which set the attachment plate to the base plate. It is a perspective view which shows another example. It is sectional drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door 1a Door 1b Sliding door 2 Door frame 3 Attaching member 4 Electronic lock body 4a Long hole 5 Gutter member (dead bolt)
5a Manual operation element 6 Receiving member 7 Receiving hole 8 Cable 9a Auxiliary power terminal 9b Auxiliary power terminal 10 Light receiving element 11 Receiving mechanism 12 Bottom plate 12a Rising wall 12b Through hole 13 Notch 14 Guide box 15 Lock bar 16 Drive motor 17 Worm gear 18 Gear 19 pinion 20 electronic circuit 21 cable 22 9V battery 23a auxiliary power terminal 23b auxiliary power terminal 24 light receiving element 25 light receiving element 26 casing cover 26a fitting hole 27 screw hole 28 notch 29 base plate 29a notch 30 screw 31 screw hole 32 pivot Shaft 33 Hinge 34 Mounting plate 34a Upper bent piece 35 Through hole 36 Control part 37 Lock rod 38 Lifting drive motor 39 Worm gear 40 Gear 41 Pinion 42 Rack 43 Cable 44a Auxiliary Power terminal 44b Auxiliary power terminal 45 Light receiving element 46 Guide box 47 Limit switch 48 Sensor 49 Decoder 50 Light receiving element 51 Switch 52 Electronic key 52a Locking switch 52b Unlocking switch 53 Light emitting element 54 Recessed part 55 Indoor telephone 56 Relay 57 Light emitting element 58 Light Branching device 59 Optical fiber 60 Antenna

Claims (12)

  The receiving mechanism for the eaves member that comes in and out of the electronic lock body is equipped with a lock bar that engages with the eaves member to lock it, and the lock bar is slid or rotated by the input from the outside to release the locked state An emergency unlocking device for an electronic lock, characterized in that   The receiving mechanism includes an electronic circuit for control, a drive motor electrically connected to the electronic circuit, and a gear mechanism that is operated by the drive motor and operates the lock bar. The emergency unlocking device for an electronic lock according to claim 1.   The above-described electronic circuit is connected to a cable that is led to the outdoor side, and at the tip of the cable is provided with at least a power supply terminal and a light receiving element that receives an unlocking signal. The emergency unlocking device for an electronic lock according to claim 2.   The lock bar described above is characterized in that a rack is formed on the outer surface, and is constructed in a state of being erected with respect to the notch for receiving the above-mentioned saddle member, and is slid through the guide box. The emergency unlocking device for an electronic lock according to claim 1, claim 2 or claim 3.   A light receiving element that receives an unlocking optical signal from a repeater that operates via an indoor telephone and an antenna that receives radio waves are electrically connected to the electronic circuit toward the indoor side. The emergency unlocking device for an electronic lock according to claim 1, claim 2, claim 3 or claim 4.   The electronic lock main body is fixed to a mounting plate that pivots in the indoor side direction with respect to a base plate fixed to the indoor side surface of the door. The emergency unlocking device for an electronic lock according to claim 4 or 5.   The emergency unlocking device for an electronic lock according to claim 6, wherein the pivot hinge portion of the base plate and the mounting plate is provided with a spring for biasing the mounting plate in the pivot direction.   The emergency unlocking device for an electronic lock according to claim 6 or 7, wherein a recess is formed in a substantially central portion of the mounting plate, and an electronic lock body is fixed to the recess. .   The free end side of the mounting plate described above is a bent piece bent at a substantially right angle, and at least one engagement through hole is formed in the bent piece, and the base plate is provided in the engagement through hole. The emergency unlocking device for an electronic lock according to claim 6, 7 or 8, wherein the tip of the lock rod is inserted and withdrawn.   10. The emergency unlocking device for an electronic lock according to claim 9, wherein a rack is formed on the outer surface of the lock rod, and a gear mechanism engaged with the rack is operated by a drive motor.   The above-described base plate is equipped with a control unit that controls the drive motor and controls the position of the lock rod. The control unit includes a cable that leads the tip to the outdoors, and the cable includes at least auxiliary power. The emergency unlocking device for an electronic lock according to claim 10, further comprising a light receiving element for receiving a supply terminal and an unlocking signal. The emergency unlocking device for an electronic lock according to claim 11, wherein a light receiving element that receives a signal from a repeater that operates via an indoor telephone is electrically connected to the control unit.

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