JP2018115425A - Electric lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric lock device which can perform lock and unlock operations in a reliable manner when an input is given whether electrically or manually and which is hard to generate vibration and noise during operation.SOLUTION: An electric lock device, which is brought into a locked state when a rotational driving force is applied from a motor 2 to an electric-operation input gear 3, and which is brought into a lock-released state when a rotational driving force is applied to a manual-operation input shaft 6 from a key 4 or a thumb-turn 5, is configured to include an input switching clutch 8 that transmits either one of the rotational driving forces to an output shaft 7 and a click mechanism 10 that, when a rotation amount of the key 4 or the thumb-turn 5 exceeds a predetermined amount, makes an application to the manual-operation input shaft 6 of a rotational driving force in a direction to promote the rotation, which results in that the lock and lock-release operations can be performed in a reliable manner when the input is given whether electrically or manually and which allows the click mechanism 10 to provide less generation of vibration and noise caused by the repetition of the lock and lock-release operations by the input switching clutch 8 during the manual input operation.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electric lock that can be locked and unlocked by either electric input or manual input.

  In recent years, electric locks that can be locked and unlocked keylessly at the front door are becoming widespread, but electric locks can also be locked and unlocked using conventional keys and thumbturns in case of emergency such as a power failure It needs to be structured.

  In response to this requirement, for example, in the electric lock proposed in Patent Document 1, a first input member that is rotationally driven by an electric input from a motor and a second input member that is rotationally driven by a manual input from a key or thumb turn. And an output member that advances and retracts the deadbolt, and an input switching clutch that transmits the rotational driving force applied to the first input member or the second input member to the output member, and can be locked by either electric input or manual input. It can be unlocked.

  On the other hand, with an electric lock that can be locked and unlocked by either electric input or manual input as described above, when the amount of rotation of the key or thumb turn from the locked or unlocked state exceeds a predetermined amount, the rotation There is a click mechanism that applies a rotational driving force in the direction of promoting the rotation to the output member so that the operation of locking / unlocking is performed reliably (see, for example, Patent Document 2).

JP, 2006-108928, A Japanese Patent No. 3646891

  In the electric lock disclosed in Patent Document 1, an inner ring that rotates integrally with the output member around the same axis as the second input member is arranged on the radially inner side of the outer ring that rotates integrally with the first input member as an input switching clutch. A plurality of cam surfaces are provided in the circumferential direction on the outer circumferential surface of the inner ring, and a wedge-shaped space gradually narrowing in the circumferential direction is formed between the inner circumferential cylindrical surface of the outer ring and each cam surface of the inner ring. A roller and a spring that pushes the roller into a narrow portion of the wedge-shaped space are incorporated in the space, and lock release pieces having column portions inserted on both sides in the circumferential direction of each wedge-shaped space are connected to the second input member so as to be able to transmit the rotation. A torque transmitting means for transmitting the rotation of the second input member to the inner ring with a slight angular delay is provided between the two input members and the inner ring. When a rotational driving force is applied to the first input member, the outer ring is a roller. By locking with the inner ring through When the rotational driving force is transmitted to the wheel and the output member, and the rotational driving force is applied to the second input member, the column part of the unlocking piece opposes the roller facing the rotational direction against the elastic force of the spring. After pushing into the vast part of the wedge-shaped space to release the locked state of the outer ring and the inner ring, a mechanism for transmitting the rotational driving force to the inner ring and the output member by the torque transmitting means is incorporated.

  However, since the input switching clutch configured as described above is used, when a click mechanism as described in Patent Document 2 is incorporated in order to improve the reliability of the locking / unlocking operation, The following problems are concerned.

  That is, when locking or unlocking is performed by manual input from a key or thumb-turn, the roller of the input switching clutch moves to the wide part of the wedge-shaped space by the rotation of the second input member until the rotation amount reaches a predetermined amount. The inner ring, which has been unlocked from the outer ring by this, receives the rotational driving force from the second input member and rotates integrally with the output member, but the rotation amount of the key or thumb turn exceeds a predetermined amount, and the click mechanism When a rotational driving force is applied to the output member, the output member and the inner ring rotate (idle) at a rotational speed that exceeds the rotational speed of the second input member, so that the roller relatively returns to the narrow portion of the wedge-shaped space and returns to the inner ring. Is locked with the outer ring, and immediately after that, the operation of releasing the lock of the inner ring with the outer ring by the rotation of the second input member is repeated. Vibration and noise Te is likely to occur.

  Accordingly, an object of the present invention is to provide an electric lock that can be reliably locked and unlocked by both electric input and manual input, and that is less susceptible to vibration and noise during operation.

  In order to solve the above problems, an electric lock according to the present invention includes a first input member that is rotationally driven by an electric input from a motor, a second input member that is rotationally driven by a manual input from a key or thumb turn, and a dead An output member that advances and retracts the bolt; and an input switching clutch that transmits a rotational driving force applied to the first input member or the second input member to the output member, and the input switching clutch rotates with the first input member. An inner ring that rotates integrally with the output member is arranged around the same axis as the second input member on the radially inner side of the outer ring that is connected so as to be able to transmit, and the cam surface is circumferential in the outer peripheral surface of the inner ring And a wedge-shaped space gradually narrowing in the circumferential direction is formed between the inner peripheral cylindrical surface of the outer ring and each cam surface of the inner ring, and a roller and the roller in each wedge-shaped space are narrowed in the wedge-shaped space. A spring for pushing into the portion is incorporated, and unlocking pieces having pillar portions inserted on both sides in the circumferential direction of each wedge-shaped space are connected to the second input member so as to be able to transmit the rotation, and the second input member and the inner ring There is provided a torque transmission means for transmitting the rotation of the second input member to the inner ring with a slight angular delay. When a rotational driving force is applied to the first input member, the outer ring is connected to the inner ring via a roller. When the rotational driving force is transmitted to the inner ring and the output member, and the rotational driving force is applied to the second input member, the column portion of the unlocking piece is a roller facing in the rotational direction. Is pushed against the elastic force of the spring to the wide part of the wedge-shaped space to release the locked state of the outer ring and the inner ring, and then the torque transmission means transmits the rotational driving force to the inner ring and the output member. And when the rotation amount of the key or thumb turn from the locked state or the unlocked state exceeds a predetermined amount on the input side of the input switching clutch, a rotational driving force in a direction that promotes the rotation is provided. A click mechanism to be added to the second input member is provided.

  According to the above configuration, when a rotational driving force is applied from the motor to the first input member, the outer ring of the input switching clutch is locked to the inner ring via the roller, so that the rotational driving force is applied to the inner ring and the output member. When a rotational driving force is applied to the second input member from the key or thumb turn, the rotational force is applied to the inner ring and the output member after the outer ring and the inner ring are unlocked by the rotation of the second input member. Since it is transmitted, the dead bolt can be advanced and retracted by the output member by both electric input and manual input, and locking / unlocking can be performed. In addition, a click mechanism is provided to apply a rotational driving force to the second input member in a direction that promotes rotation when the amount of rotation of the key or thumb turn by manual input exceeds a predetermined amount. Locking action is obtained. In addition, since the click mechanism applies a rotational driving force to the second input member on the input side of the input switching clutch, the output member is more rotationally driven than the second input member when locked / unlocked. It does not rotate fast, and there is no possibility of vibration or noise due to the unlocking and locking of the input switching clutch.

  Here, the click mechanism may be provided in a rotation transmission member that transmits rotation of the key or thumb turn to the second input member.

  Further, the click mechanism may be one that applies a rotational driving force to the second input member by a pressing force of a spring.

  As described above, the electric lock of the present invention can be securely locked / unlocked by either the electric input or the manual input by the action of the input switching clutch and the click mechanism. Since a rotational driving force is applied to the second input member on the input side of the clutch, the output member does not rotate faster than the second input member during locking and unlocking, and the input switching clutch There is no risk of vibration or abnormal noise due to repeated unlocking and locking.

Longitudinal front view of the electric lock of the embodiment Sectional view along the line II-II in FIG. Sectional view of the input switching clutch of FIG. a and b are explanatory views of the operation at the time of manual input of the input switching clutch of FIG. Sectional drawing which shows the modification of a click mechanism corresponding to FIG.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 5. As shown in FIGS. 1 and 2, this electric lock includes a motor 2 with a speed reducer, and an electric input gear (first input member) that is driven to rotate by electric input from the motor 2. 3, a manual input shaft (second input member) 6 that is rotationally driven by manual input from the key 4 or thumb turn 5, an output shaft (output member) 7 that is concentric with the manual input shaft 6, and electric input There is provided an input switching clutch 8 that transmits to the output shaft 7 either a rotational driving force of electric input to the gear 3 or manual input to the manual input shaft 6, and a dead bolt 9 that advances and retreats by the rotation of the output shaft 7. In addition, locking and unlocking can be performed by both electric input and manual input. Further, a click mechanism 10 is provided on the input side of the input switching clutch 8 to ensure that the locking / unlocking operation is performed as will be described later.

  The lock case 1 is inserted and fixed between a pair of plate members B1 and B2 forming the inner and outer surfaces of the entrance door, and the opening on one side of the rectangular box portion 1a is closed with a lid portion 1b. A reduction gear portion of the motor 2 is supported by a bracket 1c provided on the inner surface of the portion 1a. A guide member 11 for guiding the dead bolt 9 in the forward / backward direction is provided on the bottom of the rectangular box portion 1a.

  A thumb turn shaft 12 integrally formed with the thumb turn 5 passes through the box portion 1a of the lock case 1 and the plate member B1 on the door inner surface side. The thumb turn shaft 12 is connected to a key shaft 13 into which the tip end portion of the key 4 is inserted so as to be able to transmit rotation. The key shaft 13 is rotatably supported by the lid portion 1 b of the lock case 1. A thumb turn seat 14 for rotatably supporting the thumb turn shaft 12 is attached to the surface of the plate member B1 on the door inner surface side, and a key seat 15 is attached to the surface of the plate member B2 on the door outer surface side. The front end of the key 4 passes through the key seat 15 and the plate member B2 and is inserted into the key shaft 13.

  Here, the key shaft 13 has two concave fan-shaped recesses in which the key hole 13a into which the tip of the key 4 is inserted is opposed to each other in the radial direction, and the key 4 inserted into the key hole 13a is locked and opened. When rotating in a predetermined direction according to the state of the lock, the key shaft 13 is also rotated in the same direction as the key 4. A first partial gear 16 having teeth formed on the outer periphery of the fan-shaped portion is fitted and fixed at the longitudinal center of the key shaft 13, and the first partial gear 16 is fitted on the outer periphery of the manual input shaft 6. It meshes with a fixed manual input gear 17. That is, the first partial gear 16 is a rotation transmission member that transmits the rotation of the key 4 or the thumb turn 5 to the manual input shaft 6.

  The electric input gear 3 is a bevel gear that meshes with a bevel gear 18 provided on the output side of the motor 2, and is fitted and fixed to an electric input shaft 19 passed through the center thereof. Both ends of the electric input shaft 19 are rotatably supported by the lock case 1, and a pinion 20 is fitted and fixed to the outer periphery on the axial direction center side of the electric input gear 3. As will be described later, the rotational driving force of the motor 2 is transmitted to the input switching clutch 8 via the electric input gear 3, the electric input shaft 19 and the pinion 20.

  The manual input shaft 6 and the output shaft 7 are rotatably supported at their outer ends by the lock case 1 and are connected inside the input switching clutch 8 as will be described later.

  That is, as shown in FIG. 3, the manual input shaft 6 has an engaging portion 6a having a two-sided width formed on the outer periphery, and a small-diameter cylindrical portion 6b protruding from the inner end surface of the engaging portion 6a. The output shaft 7 is integrally formed with an inner ring 21 constituting a part of the input switching clutch 8 at the inner end thereof. Then, the engaging portion 6a of the manual input shaft 6 is inserted into an engaging hole 21a provided on the end surface of the inner ring 21, and the small diameter cylindrical portion 6b extends from the bottom of the engaging hole 21a of the inner ring 21 to the output shaft 7 side. The manual input shaft 6, the output shaft 7, and the inner ring 21 are fitted around the holes so as to rotate around the same axis. Here, the engagement hole 21a of the inner ring 21 has a cross-section substantially the same shape as the engagement portion 6a of the manual input shaft 6, and there is a slight rotational clearance when the engagement portion 6a of the manual input shaft 6 is inserted. Thus, torque transmission means for transmitting the rotation of the manual input shaft 6 to the inner ring 21 with a slight angular delay is configured.

  As shown in FIGS. 1 to 3, the input switching clutch 8 is arranged on the inner side in the radial direction of the outer ring 23, the intermediate gear 22 meshing with the pinion 20, the outer ring 23 fitted and fixed to the inner periphery of the intermediate gear 22. The inner ring 21, the roller 24 and the coil spring 25 incorporated between the inner peripheral surface of the outer ring 23 and the outer peripheral surface of the inner ring 21, and a column inserted at a position facing the coil spring 25 across the roller 24. And an unlocking piece 26 having a portion 26a. Further, side plates 27 are attached to both end faces of the intermediate gear 22 so as to pass the manual input shaft 6 or the output shaft 7 and close both ends in the axial direction of the space between the outer ring 23 and the inner ring 21.

  A plurality of cam surfaces 21 b are provided on the outer periphery of the inner ring 21, and wedge-shaped spaces 28 that are gradually narrowed on both sides in the circumferential direction are formed between the cam surfaces 21 b and the inner peripheral cylindrical surface of the outer ring 23. . A pair of rollers 24 is arranged in each wedge-shaped space 28 with a coil spring 25 sandwiching the rollers 24 into the narrow portion of the wedge-shaped space 28, and unlocked on both sides in the circumferential direction of each wedge-shaped space 28. The column part 26a of the piece 26 is inserted. The unlocking piece 26 is fitted and fixed to the outer periphery of the engaging portion 6 a of the manual input shaft 6.

  In the input switching clutch 8, when a rotational driving force is applied to the intermediate gear 22 and the outer ring 23 integrated with the intermediate gear 22 by driving the motor 2, the rotation is pushed into the narrow portion of the wedge-shaped space 28 by the elastic force of the coil spring 25. Since the outer ring 23 and the inner ring 21 are locked via the roller 24 on the front side in the direction, the rotation (rotational driving force) of the outer ring 23 is transmitted to the inner ring 21 and the output shaft 7. At this time, since the roller 24 on the front side in the rotation direction presses the column portion 26a of the unlocking piece 26, the manual input shaft 6 to which the unlocking piece 26 is fixed also rotates together.

  On the other hand, when a rotational driving force is applied to the manual input shaft 6 with the intermediate gear 22 and the outer ring 23 stopped by the stop of the motor 2, first, as shown in FIG. The column part 26a of the unlocking piece 26 that rotates integrally pushes the roller 24 on the rear side in the rotation direction (opposed in the rotation direction) against the elastic force of the coil spring 25 to the wide part of the wedge-shaped space 28. And the outer ring 23 and the inner ring 21 are disengaged, and the locked state of the outer ring 23 and the inner ring 21 is released. As shown in FIG. 4B, when the manual input shaft 6 further rotates and the engaging portion 6a presses the inner surface of the engaging hole 21a of the inner ring 21, the rotation of the manual input shaft 6 ( (Rotational driving force) is transmitted to the inner ring 21 and the inner ring 21 and the output shaft 7 rotate (at this time, the roller 24 on the front side in the rotation direction moves relative to the wide portion of the wedge-shaped space 28, so the outer ring 23 and the inner ring 21 Do not engage).

  The reason why the outer ring 23 does not rotate at this time is mainly that the motor 2 has a reduction gear with a torque cross. That is, when the column portion 26a of the unlocking piece 26 integrated with the manual input shaft 6 presses the roller 24 on the rear side in the rotation direction, the motor 2 is moved from the roller 24 and the inner and outer rings 21 and 23 engaged therewith. The rotational torque required to rotate the outer shaft 23 is larger than the rotational torque required to rotate only the roller 24 to the wide part of the wedge-shaped space 28 and rotate the output shaft 7, so that the outer ring 23 remains stopped. It becomes. Even if the motor is not equipped with a speed reducer, if the magnitude relationship of the rotational torque described above is established, for example, by providing means for applying a braking force to the electric input gear or intermediate gear, the outer ring Can be stopped. Further, if a reverse input blocking mechanism is provided between the motor and the outer ring, the rotation of the outer ring can be more reliably prevented.

  An output gear 29 is fitted and fixed to the outer periphery of the output shaft 7, and the output gear 29 meshes with a second partial gear 30 that is rotatably supported with the dead bolt 9. In the second partial gear 30, a rectangular plate-like engagement piece 31 is integrally formed on the side opposite to the fan-shaped portion on which the teeth are formed across the rotation center, and a part of the engagement piece 31 is a dead bolt 9. Is inserted into a recess 9a formed at the rear end of the forward / backward direction.

  That is, when the output shaft 7 rotates integrally with the output gear 29, the second partial gear 30 meshing with the output gear 29 rotates integrally with the engagement piece 31, and the engagement piece 31 is the inner surface of the recess 9 a of the dead bolt 9. By pushing, the dead bolt 9 advances and retreats while being guided by the inner surface of the box portion 1 a of the lock case 1 and the guide member 11, and the tip portion is caused to appear and disappear from the lock case 1.

  Further, the click mechanism 10 is provided with an arm 16a extending radially outward (upward) on the opposite side of the fan-shaped portion on which the teeth are formed across the rotation center of the first partial gear 16, and the arm 16a A pressing plate 32 that contacts the upper end portion, and a coil spring 33 that biases the arm 16a downward via the pressing plate 32 are fixed to the inner surface of the box portion 1a of the lock case 1 and open downward. It is what was stored in. The arm 16a of the first partial gear 16 is in contact with the lower surface of the pressing plate 32 in an inclined posture when the electric lock is in the locked state or the unlocked state, and the pressing plate 32 is guided to the inner surface of the cylindrical member 34. It can be moved up and down.

  Therefore, when the key 4 or the thumb turn 5 is rotated from the locked state or the unlocked state, the rotation amount is a predetermined amount (the rotation amount in which the extending direction of the arm 16a of the first partial gear 16 matches the pressing direction of the coil spring 33). 1), the first partial gear 16 receives a force to push back its rotation. However, when the rotation amount of the key 4 or the thumb turn 5 exceeds a predetermined amount, the first partial gear 16 is driven to rotate in the same direction as the rotation. The rotational driving force is received and transmitted to the manual input shaft 6 via the manual input gear 17 that meshes with the first partial gear 16.

  That is, the click mechanism 10 is driven to rotate in a direction that promotes rotation when the amount of rotation of the key 4 or thumb turn 5 from the locked state or unlocked state exceeds a predetermined amount by the pressing force of the coil spring 33. A force is applied to the manual input shaft 6 via the first partial gear 16 and the manual input gear 17.

  This electric lock is configured as described above, and when the motor 2 is driven, the rotational driving force is applied to the electric input gear 3, and the outer ring of the input switching clutch 8 is connected via the electric input shaft 19, the pinion 20 and the intermediate gear 22. Is transmitted to the output shaft 23 and the output gear 29 by the input switching clutch 8. Then, when the second partial gear 30 that meshes with the output gear 29 rotates integrally with the engagement piece 31, the tip of the dead bolt 9 protrudes and retracts from the lock case 1, and locking / unlocking is performed.

  At this time, since the manual input shaft 6 rotates together as described above, the rotation is transmitted to the first partial gear 16 and the key shaft 13 via the manual input gear 17, and at the same time the key shaft 13 rotates. The thumb turn shaft 12 connected to the shaft 13 also rotates. Therefore, the state of locking / unlocking can be seen by visually observing the thumb turn 5 from the inside of the entrance door.

  On the other hand, when the key 4 is inserted into the key seat 15 and the key shaft 13 and rotated in a predetermined direction, the rotational driving force of the key 4 is transmitted to the manual input shaft 6 via the key shaft 13, the first partial gear 16 and the manual input gear 17. And is transmitted to the output shaft 7 by the input switching clutch 8. The dead bolt 9 is advanced and retracted by the rotation of the output shaft 7 and is locked and unlocked in the same manner as when the motor 2 is driven. Further, even if the thumb turn 5 is rotated in a predetermined direction, locking / unlocking is performed by the same operation as when the key 4 is rotated.

When the key 4 or the thumb turn 5 is thus rotated, the outer ring 23 of the input switching clutch 8 does not rotate together as described above, so that each member on the electric input side does not rotate and can be operated lightly. At this time, when the rotation amount of the key 4 or the thumb turn 5 exceeds a predetermined amount by the action of the click mechanism 10 described above, the rotational driving force in the direction of promoting the rotation is the first partial gear 16 and the manual input gear 17. Since it is added to the manual input shaft 6 via, the operation of locking / unlocking is reliably performed.

  In addition, the click mechanism 10 applies a rotational driving force to the manual input shaft 6 on the input side of the input switching clutch 8, so that when the locking / unlocking is performed by manual input, the rotation speed of the manual input shaft 6 is determined. However, the rotational speed of the output shaft 7 is not increased, and therefore vibration and noise due to the unlocking and locking of the input switching clutch 8 are not generated.

  For this reason, the degree of freedom in design is greater than when a click mechanism for applying a rotational driving force to the output member is provided on the output side of the input switching clutch. For example, the operating speed of the dead bolt 9 is increased to moderate the click sound. Therefore, the spring constant of the coil spring 33 and the stroke of the pressing plate 32 can be increased.

  Further, even if the locking or unlocking by manual input is completed and the dead bolt 9 is stopped at the forward limit or the backward limit, the click mechanism 10 does not fully extend to the natural state, and the click mechanism 10 does not extend to the manual input shaft 6. The rotational driving force in the rotational direction until is continuously applied. That is, when the locking / unlocking operation is not performed, the manual input shaft 6 is loaded with a preload from the click mechanism 10 in the direction opposite to the rotation direction of the next locking / unlocking operation, and the engaging portion of the manual input shaft 6 is engaged. There is always a gap in the rotational direction of the next locking / unlocking operation between 6a and the inner surface of the engagement hole 21a of the inner ring 21. As a result, when the key 4 or the thumb turn 5 is rotated, the unlocking operation of the input switching clutch 8 described with reference to FIG. 4A is surely performed, and the locking / unlocking operation can be performed smoothly. Yes.

  Note that the click mechanism is not limited to the configuration of the above-described embodiment, and for example, a modification shown in FIG. 5 may be employed. In the click mechanism 10 of this modified example, one end of the torsion coil spring 35 is fixed to the inner side surface of the box portion 1a of the lock case 1, and the other end is fixed to the side opposite to the teeth of the first partial gear 16. By changing the direction in which the pressing force of the torsion coil spring 35 acts as the first partial gear 16 rotates, the amount of rotation of the key 4 or thumb turn 5 from the locked state or the unlocked state exceeds a predetermined amount as in the embodiment. When this occurs, the rotational driving force in the direction of promoting the rotation is applied to the manual input shaft 6 via the first partial gear 16 and the manual input gear 17.

  Further, in the embodiment, the click mechanism 10 applies the rotational driving force in the direction that promotes the rotation of the key 4 or the thumb turn 5 to the second input member indirectly via the first partial gear 16 and the manual input gear 17. Although it is applied to a certain manual input shaft 6, the click mechanism may directly apply a rotational driving force to the second input member.

1 lock case 2 motor 3 electric input gear (first input member)
4 Key 5 Thumb turn 6 Manual input shaft (second input member)
7 Output shaft (output member)
8 Input switching clutch 9 Dead bolt 10 Click mechanism 12 Thumb turn shaft 13 Key shaft 16 First partial gear 16a Arm 17 Manual input gear 19 Electric input shaft 20 Pinion 21 Inner ring 21b Cam surface 22 Intermediate gear 23 Outer ring 24 Roller 25 Coil spring 26 Lock Release piece 26a Column 28 Wedge-shaped space 29 Output gear 30 Second partial gear 31 Engagement piece 32 Press plate 33 Coil spring 34 Tube member 35 Torsion coil spring

Claims (3)

A first input member that is rotationally driven by an electric input from a motor; a second input member that is rotationally driven by a manual input from a key or thumb turn; an output member that advances and retracts a dead bolt; and An input switching clutch that transmits the rotational driving force applied to the two input members to the output member;
The input switching clutch includes an inner ring that rotates integrally with the output member around the same axis as the second input member, on the radially inner side of the outer ring that is connected to the first input member so as to transmit rotation. A plurality of cam surfaces are provided in the circumferential direction on the outer circumferential surface of the inner ring, and a wedge-shaped space gradually narrowing in the circumferential direction is formed between the inner circumferential cylindrical surface of the outer ring and each cam surface of the inner ring. Each wedge-shaped space incorporates a roller and a spring that pushes the roller into the narrow portion of the wedge-shaped space, and lock release pieces having column portions inserted on both sides in the circumferential direction of each wedge-shaped space can be transmitted to the second input member. And a torque transmission means for transmitting the rotation of the second input member to the inner ring with a slight angular delay between the second input member and the inner ring, and applying a rotational driving force to the first input member. When the outer ring is By locking with the inner ring through the roller, a rotational driving force is transmitted to the inner ring and the output member, and when the rotational driving force is applied to the second input member, the column part of the unlocking piece is Push the rollers facing each other in the rotation direction against the elastic part of the spring to the wide part of the wedge-shaped space to release the locked state of the outer ring and the inner ring, and then rotate the inner ring and the output member by the torque transmission means Power is transmitted,
When the rotation amount from the locked state or the unlocked state of the key or thumb turn exceeds a predetermined amount on the input side of the input switching clutch, a rotational driving force in a direction that promotes the rotation is applied to the second input member. An electric lock with a click mechanism to add.   2. The electric lock according to claim 1, wherein the click mechanism is provided on a rotation transmission member that transmits rotation of the key or thumb turn to the second input member. 3.   The electric lock according to claim 1 or 2, wherein the click mechanism applies a rotational driving force to the second input member by a pressing force of a spring.

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