JP6445951B2 - Electronic cylinder lock - Google Patents

Description

  The present invention relates to an electronic cylinder lock, and more particularly to an electronic cylinder lock used in combination with a door lock.

  Conventionally, a door lock having a latch installed inside a door and operated by a handle, a thumb turn provided on the indoor side, and a dead bolt operated by a key inserted from the outdoor side has been widely used. .

  However, such a door lock has a cylinder lock with a key hole on the front surface that is always exposed to the outside, so there is a risk that the key hole will be tampered with, or the key hole may be clogged with earth or sand. There is a possibility of being damaged by picking.

  Therefore, there has been proposed a device using another lock device that can be replaced with a cylinder lock without using a cylinder lock (see, for example, Patent Document 1). In Patent Document 1, an inner case is rotatably provided in an outer case fixed to a door, and a car having an operating body that can be moved by inserting a key card in the inner case. When the card type lock body is installed and the card card is inserted into the card type lock body, the inner case can be rotated, and the inner case is moved to the locked position and the unlocked position. A card-type locking device is described in which a latch such as a dead bolt connected to an inner case is locked and unlocked by rotating it. Such a device has been well received because it can be easily operated with a key card, but since it is operated using the force when the key card is pushed in, an impact is applied each time it is inserted, and the key card is damaged. It may be easy to do.

  A device that can be locked and unlocked by non-contact communication has also been proposed (see, for example, Patent Documents 2 and 3). Patent Document 2 includes a locking / unlocking device that is electrically connected to a handle and electrically operates. A battery case that houses a dry cell for operating the locking / unlocking device is formed at the lower end of the outer cover, and is based on the result of wireless communication. A non-contact type lock control device for connecting and disconnecting a dead bolt and a handle is described, and the latch bolt and the dead bolt can be inserted by operating the handle in an unlocked state. However, this lock control device cannot be used in combination with an existing door lock because the entire device must be completely different from the conventional one.

  Patent Document 3 describes a cylindrical lock having a remote-operated electronic lock security system assembly, but this device cannot be easily attached to an existing door lock.

  It is also known that a device is attached so as to cover a thumb turn provided on the indoor side of the door, and an operation signal is transmitted and received by a smartphone to be unlocked. However, such a device is a device that drives the motor to directly rotate and unlock the thumb turn, so that a large motor is required. In addition, the battery and the battery case for storing the battery are also large, and there are cases where the battery cannot be installed depending on the positional relationship between the handle and the thumb turn and the positional relationship between the bag provided around the door.

Japanese Patent No. 3906407 (paragraph 0008, FIG. 1) Japanese Patent Laid-Open No. 11-131879 (paragraphs 0013 to 0016, FIGS. 5 and 6) Japanese translation of PCT publication No. 10-507503 (FIGS. 1, 2 and 14 to 18)

  An object of the present invention is to provide an electronic cylinder lock that can be attached to existing door locks installed on a wide variety of doors and can be easily locked and unlocked by receiving appropriate electronic information.

  According to the present invention, the thumb turn ring provided rotatably on the outer periphery of the cylindrical main body and the rotation of the thumb turn ring provided in the main body are transmitted or not transmitted to a tail gear that can be interlocked with a latch such as a dead bolt. A rotation interrupting mechanism that moves the motor, a connecting gear that can be moved to an engagement position or a non-engagement position with the tail gear by the motor, and operates the motor when appropriate information is received. And a battery for driving the control circuit, and by driving the motor, the connecting gear is moved to an engagement position with the tail gear, and rotation of the thumb turn ring is transmitted to the tail gear. An electronic cylinder lock characterized in that the latch is operated by rotation is provided. That.

  According to the present invention, there is provided an electronic cylinder lock characterized in that the main body is detachably connected to a housing fixed to a door, and the tail gear is rotatably provided in the housing. Is done.

  According to the above configuration, the present invention can be easily used by replacing the conventional cylinder lock provided in the existing door lock, and various doors having different positions of the handle, the position of the cylinder lock, the hood width and other aspects. Even so, it can be incorporated without hindrance.

  Moreover, this invention can be easily replaced | exchanged and attached by making the main body substantially the same as the hole for cylinder lock installation provided in the existing door by the said structure.

  In addition, when the main body is assembled in the housing, the connecting gear and tail gear can be connected, and the rotation of the thumb turn ring is transmitted to the tail gear so that it can be rotated manually, so the motor moves the connecting gear. It can be used with a low-power motor or battery, is simple in construction, and can be easily installed anywhere.

It is a perspective view of the use condition which shows one Example of this invention. It is a disassembled perspective view of the Example shown in FIG. It is explanatory drawing which showed one Example of the rotation interruption mechanism, and abbreviate | omitted the spring holder. It is explanatory drawing which shows the relationship between a screw shaft, a spring holder, and a non-rotating washer. It is sectional drawing of the state which the connecting gear moved to the position which meshes with a tail gear. It is sectional drawing of the state which the connecting gear moved to the position which has not meshed with the tail gear. It is a partial expanded sectional view of the state where the tooth tip of the connecting gear is in contact with the tail gear. It is a perspective view which shows a main body and a thumb turn ring. It is a perspective view which shows a housing. It is explanatory drawing which shows the position of a thumb turn ring, a connection gear, and a battery accommodating part. It is explanatory drawing which shows the position of a motor gear, a screw ring, and a battery accommodating part.

  1 and 2, the electronic cylinder lock 1 of the present invention is used in combination with a door lock 91 attached to a door 90 as shown in the figure. The door lock 91 has a latch 92 that is operated by a handle 96 as is well known, and a dead bolt 93 that communicates with a thumb turn 97 (FIG. 2) provided on the indoor side. The electronic cylinder lock 1 is provided in communication with a dead bolt 93 on the outdoor side of the door 90 facing the thumb turn 97. In the present specification and claims, the outdoor direction of the door 90 is “front” and “front”, and the indoor direction is “rear” and “rear”.

  The electronic cylinder lock 1 has a cylindrical main body 10, and a thumb turn ring 50 provided with an internal gear 51 is rotatably incorporated in the outer periphery of the main body 10 as shown in FIG. 3. . The main body 10 has a connecting gear 31 that engages with the thumb turn ring 50 at the front end, and a connecting shaft 26 in which a connecting gear 26 that can mesh with a tail gear 67 is inserted in the rear shaft portion so as to be axially movable and non-rotatable. 30 is rotatably provided. In order to hold the connecting gear 26 in an axially movable state in a non-rotating state, a part of the connecting shaft 30 is formed in a deformed cross section by providing a flat portion 32 on a cylindrical side surface. A portion into which the gear 26 is inserted may be formed on the angular axis. The front end of the connecting shaft 30 is pivotally supported by the main body 10, and the rear end is pivotally supported by the housing 60.

  A part of the rear side of the main body 10 is inserted into a housing 60 in which the tail gear 67 is rotatably housed. As will be described later, the housing 60 is fixed to the door 90, and a decorative ring 70 is screwed into an intermediate portion of the outer periphery so as to adjust a gap with the door surface.

  As shown in FIG. 3, the thumb turn ring 50 has a cylindrical shape and has a length that can cover and conceal the outer periphery of the main body 10 and cover a part of the housing 60. As shown in FIG. 5, a front protrusion 52 extending inward in the radial direction is formed on the inner surface of the thumb turn ring 50, and prevents the thumb turn ring 50 from coming off by contacting the main body 10 located in front. Yes. The internal gear 51 is formed on the inner surface behind the front protrusion 52. A ring washer 54 is fitted between a stepped portion 53 formed behind the internal gear 51 and a projection 114 of the main body storage portion 11 provided in the main body 10, thereby enabling the thumb turn ring 50 to rotate stably. Can be moved. The outer diameter of the main body 10 is preferably substantially the same as that of the cylinder lock mounting hole 95 and the conventional cylinder lock so that the thumb turn ring 50 can be used without a sense of incongruity. However, it can be formed to have a desired diameter or outer diameter.

  The connecting gear 26 is moved to a position where the connecting gear 26 is engaged or disengaged with the tail gear 67 by a rotation interrupting mechanism. The rotation interrupting mechanism can have various configurations using an appropriate clutch mechanism or the like, but in the embodiment shown in the figure, a mechanism using an actuator such as a motor is used. That is, in the embodiment, the motor 40 having the motor gear 41, the geared screw ring 21 rotated by the motor gear 41, the screw shaft 22 moved in the axial direction by the geared screw ring 21, and the screw shaft 22 The connecting gear 26 includes a spring holder 24 that is moved in the axial direction and is rotatably supported via a retaining ring 261. The geared screw ring 21, the screw shaft 22, the spring holder 24, and the connecting gear 26 are formed in a cylindrical shape so that the connecting shaft 30 can freely rotate. A control circuit 123 and a battery 80 are provided to rotate the motor 40 forward and backward.

  The control circuit 123 is configured to operate the motor 40 when an appropriate signal is received. This signal includes personal information based on user biometric information such as electronic information such as authentication codes recorded on electronic information media such as IC cards and smartphones, fingerprints, irises, voiceprints, retinas, veins, genes, facial contours, etc. It can be selected appropriately from recognition information, input information using a numeric keypad, and the like. As a receiving method, wireless non-contact communication or a wired line can be appropriately selected. In the embodiment shown in the figure, Bluetooth (registered trademark) communication is used, but it can also be operated by non-contact communication such as NFC (Near Field Communication) communication, other wireless communication, and infrared communication.

  The battery 80 may be any battery that can drive the motor 40. For example, a cylindrical battery such as CR-123A can be preferably used. This battery is housed in a battery housing portion 112 provided along the longitudinal direction of the main body 10 (see FIG. 11).

  The screw ring 21 with gears has a female screw part 211 formed on the inner surface and a gear part 212 that engages with the motor gear 41 on the outer periphery (see FIG. 5). The screw ring with gear 21 shown in FIG. 3 has the female screw portion 211 and the gear portion 212 formed integrally in a cylindrical shape, but may be formed separately and then combined and fixed.

  The screw shaft 22 has a male screw portion 221 that engages with a female screw portion 211 of the screw ring 21 with gear on the outer periphery of the front end, and a rear end is inserted into the spring holder 24. As shown in FIG. 4, a fitting groove 223 (FIG. 4) for fitting the retaining ring 27 is formed.

  Referring to FIG. 4, a non-rotating washer 23 is inserted from the rear end side into the outer periphery of the screw shaft 22, and the non-rotating washer 23 is inserted to a position where it contacts a flange 224 provided in the middle of the screw shaft 22. . The non-turn washer 23 has an inward protruding portion 231, and the screw shaft 22 is provided with a long groove 222 that engages with the inward protruding portion 231. The outward projecting portion 232 provided on the non-rotating washer 23 is inserted into the long groove 242 provided on the spring holder 24 so as to be non-rotating and movable in the axial direction. The spring holder 24 is provided with an outer groove 241 that engages with a detent projection (not shown) provided on the main body 10 and is supported so as to be movable in the axial direction in a non-rotatable state. Will be supported non-rotatably. Since the long groove 242 provided in the spring holder 24 extends in the axial direction, the screw shaft 22 having the non-rotating washer 23 and the spring holder 24 are allowed to move relatively in the axial direction. have.

  When the geared screw ring 21 rotates, the screw shaft 22 moves forward or backward due to the screw engagement of the male screw portion 221 and the female screw portion 211 (see FIGS. 5 and 6).

  Further, a retaining ring 28 is fitted in front of the inner peripheral surface of the spring holder 24 so as to come into contact with the flange 224 and prevent the screw shaft 22 from coming off. Between the step part 243 provided in the intermediate part, the counter spring 25 is interposed so that the screw shaft 22 and the spring holder 24 may be urged | biased to a reverse direction. The counter spring 25 is supported by a step 243 of the spring holder 24 via a retaining ring 29, and the screw shaft 22 is prevented from coming off by a retaining ring 27 provided at the rear end of the screw shaft 22.

  With the above configuration, when the screw shaft 22 moves backward, the spring holder 24 moves rearward, the connecting gear 26 also moves rearward, reaches the engagement position, and the connecting gear 26 meshes with the tail gear 67 (FIG. 5). ).

  When the screw shaft 22 is rotated in reverse from this state, the spring holder 24 moves forward, so that the connecting gear 26 is disengaged from the tail gear 67 and moved to a non-engaged position.

  Further, as shown in FIG. 7, when the connecting gear 26 moves rearward, when the tooth tip abuts against the tooth tip of the tail gear 67 and the movement stops, the movement of the spring holder 24 also stops. Since the screw shaft 22 moves as described above, only the screw shaft 22 moves backward, and as a result, the counter spring 25 is compressed. The connecting gear 26 is biased relatively rearward by the compressive force of the counter spring 25. Therefore, when the thumb turn ring 50 is rotated and the connecting gear 26 is finely moved in such a state, the connecting gear 26 is moved. 26 and the tail gear 67 can be engaged with each other.

  A rear end inclined surface 262 is formed on the rear end outer peripheral surface of the connecting gear 26 so that the connecting gear 26 and the tail gear 67 can be smoothly engaged, and a front end inclined surface 671 is formed on the front end outer peripheral surface of the tail gear 67. is there. The angle between the rear end inclined surface 262 and the front end inclined surface 671 can be appropriately set, but is preferably set at about 15 degrees as shown in FIG.

  The geared screw ring 21 and the motor gear 41 are housed in the gear box 14 and set in the main body 10. The positive terminal 122 that contacts the positive terminal of the control circuit 123 and the battery 80 is installed on the plate-like main board 121.

  The main body 10 includes a main body storage portion 11 that stores a rotation interrupting mechanism, a motor 40, a battery 80, and the like, a substrate storage portion 12 that stores a main substrate 121 provided with a control circuit 123, and a storage lid portion 13. .

  The storage lid portion 13 has a disk shape, and is formed with a USB connection terminal exposing port 131 penetrating from the rear surface to the front surface so that it can be connected to the USB substrate 134 installed on the rear surface. The outer diameter of the storage lid portion 13 is substantially equal to or slightly larger than the outer diameter of the thumb turn ring 50 so that the front end of the thumb turn ring 50 abuts the rear surface of the storage lid portion 13. The USB board 134 is connected to the control circuit 123.

  A silicon front rubber 133 is attached to the storage lid 13 (see FIG. 5). Since the silicon front rubber 133 has a lid portion that covers the USB connection terminal exposing port 131, the USB substrate 134 can be prevented from being exposed except when necessary. Further, when an impact is applied to the main body 10, the impact can be reduced.

  As shown in FIG. 9, the housing 60 has a large-diameter portion 61 on the front side and a small-diameter portion 65 having a smaller diameter than the large-diameter portion 61 on the rear side. 70 is screwed. The outer diameter of the small diameter portion 65 is formed to be an outer diameter that can be inserted into a cylinder lock installation hole 95 provided in the door 90 (see FIG. 2). An insertion hole 651 for inserting the fixing pin 94 inserted from the door lock 91 is formed on the side surface of the small diameter portion 65. The housing 60 is fixed to the door lock 91 by inserting the fixing pin 94 into the insertion hole 651.

  In the housing 60, a main body storage portion 62 that stores from the rear to the middle of the main body 10 and a connection hole 66 are formed. A plurality of movement control recesses 622 into which the fixing protrusions 115 provided at the rear end of the main body 10 are inserted are formed in the step portion around the connection hole 66. A tail gear 67 is fitted in the connecting hole 66 in a rotatable and retaining state, and a driver 68 is accommodated in a substantially cross-shaped hole provided in the tail gear 67. The driver 68 engages with a mechanism that controls the movement of the dead bolt 93 and the like in a state where the housing 60 is fixed to the door lock 91.

  The main body 10 and the housing 60 are detachably connected. The connecting mechanism can be appropriately configured. However, in the embodiment shown in the figure, as the connecting mechanism, a detachable stopper 15 that is substantially fan-shaped on the main body 10 and is ejected in a protruding direction by a spring (not shown) is projected and retracted. It is possible. On the other hand, the housing 60 has an engagement groove 621 that engages with the arcuate surface side of the detachable stopper 15. When the main body 10 is rotated due to the shape of the attachment / detachment stopper 15 and the engagement groove 621, the attachment / detachment stopper 15 fits into the engagement groove 621 or comes out of the engagement groove 621. A removal hole 611 is formed so as to open at the bottom of the engagement groove 621, and a pin can be appropriately inserted from the hole so that the attachment / detachment stopper 15 can be inserted to disengage the main body 10 and the housing 60. The engagement groove 621 and the attachment / detachment stopper 15 are engaged with appropriate play so that the main body 10 can be moved forward by a width that allows the fixing protrusion 115 to escape from the movement control recess 622. doing. The removal hole 611 is provided at a position that can be visually recognized when the main body 10 is pulled out with the thumb turn ring 50.

  Since the main body 10 and the housing 60 are detachably connected, when the battery 80 is replaced, the main body 10 is moved forward to expose the removal hole 611 and insert the pin into the removal hole 611 while the main body 10 is inserted. Is rotated, the main body 10 is separated from the housing 60 and can be easily replaced.

  The use state of the electronic cylinder lock 1 of the present invention will be described. When the control circuit 123 receives the identification information from electronic information from a Bluetooth communication device such as a smartphone, the motor 40 rotates and the screw shaft 22 rotates through the geared screw ring 21. By this rotation, the connecting gear 26 moves to the engagement position with the tail gear 67. Then, rotation of the thumb turn ring 50 makes it possible to transmit the rotation to the tail gear 67 via the connecting shaft 30 and the connecting gear 26.

  When the thumb turn ring 50 is manually rotated, the tail gear 67 can be rotated and unlocked via the driver 68. Moreover, if it rotates in a reverse direction, it can lock.

  Since the driving of the motor 40 is controlled so that the connecting gear 26 is moved to the non-engagement position and stopped after a predetermined time, the tail gear 67 is rotated even if the thumb turn ring 50 is rotated thereafter. Cannot be unlocked from the outside. Moreover, since the connecting gear 26 and the tail gear 67 are not normally engaged, even if the electronic cylinder lock 1 is destroyed, it can be unlocked by turning the thumb turn 97 from the inside of the room. .

  The storage lid 13 may be provided with an opening, and the main board 121 may be provided with an LED for notifying the locking / unlocking state so that the operation and the like can be confirmed. The door lock 91 may be detachably fixed using an appropriate bolt or the like so as to correspond to the existing door lock.

1: Electronic cylinder lock 10: Main body 21: Screw ring 22 with gear: Screw shaft 24: Spring holder 25: Counter spring 26: Connecting gear 31: Connecting gear 40: Motor 41: Motor gear 50: Thumb turn ring 67: Tail gear 68 : Driver 80: Battery

Claims (7)

A thumb turn ring rotatably provided on the outer periphery of the cylindrical main body;
A rotation intermittent mechanism that is provided in the main body and transmits or does not transmit the rotation of the thumb turn ring to a tail gear that can be interlocked with a latch such as a dead bolt;
The rotation interrupt mechanism includes a motor,
A connecting gear movable to an engagement position or a non-engagement position with the tail gear by the motor;
A control circuit for operating the motor when receiving appropriate information;
A battery for driving the control circuit;
The connecting gear is moved to an engagement position with the tail gear by driving the motor, the rotation of the thumb turn ring is transmitted to the tail gear, and the latch is operated by the rotation of the tail gear. Electronic cylinder lock.   The electronic cylinder lock according to claim 1, wherein the main body is detachably connected to a housing fixed to the door, and the tail gear is rotatably provided in the housing.   The electronic cylinder lock according to claim 2, wherein a front end inclined surface is provided on a front end peripheral surface of the tail gear.   The electronic cylinder lock according to any one of claims 1 to 3, wherein the battery is accommodated along a longitudinal direction of the main body.   The thumb turn ring includes an internal gear, and the connecting gear is provided on a connecting shaft provided with a connecting gear that engages with the internal gear so as not to rotate and to be movable in the axial direction, and the connecting gear includes the motor 5. The electronic type according to claim 1, wherein the electronic ring is movable by a geared screw ring that is rotated by a motor gear attached to the gear and a screw shaft that is screw-engaged with the geared screw ring. Cylinder lock.   The screw shaft is fitted in a spring holder, the tail gear is rotatably connected to a rear end of the spring holder, and the connecting gear hits the tail gear and stops moving around the spring holder and the screw shaft. 6. The electronic cylinder lock according to claim 5, wherein a counter spring is provided so as to be compressed by the movement of the screw shaft and urge the connecting gear to the engagement position.   The electronic cylinder lock according to any one of claims 1 to 5, wherein a rear end inclined surface is provided on a rear end peripheral surface of the connecting gear.

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