Smart lock device

Abstract

To provide a smart lock device capable of switching a power transmission path without using electric power.SOLUTION: A chuck mechanism including a motor, a drive gear attached to a rotation shaft of the motor, an adapter attached to a key to be locked or unlocked, a chuck cylinder fixed to an upper portion of the adapter, a locking / unlocking gear formed along an outer periphery of the chuck cylinder, and a knob integrated with a cam and rotatably connected to an upper portion of the chuck cylinder; And a clutch mechanism having a follower abutting on a lower part of the cam and a clutch arranged in a power transmission path between the drive gear and the transmission gear. The rotation axis of the motor is parallel to the rotation axes of the adapter and the chuck cylinder.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a smart lock device. [Background technology]

[0002] A smart lock is a system that allows you to lock and unlock a door via wireless communication using a communication terminal such as a smartphone. To use a smart lock, a dedicated device (smart lock device) is attached to the door lock. Smart lock devices are generally powered by batteries. If the battery life of a smart lock device runs out while you are out, there is a risk of being locked out of your home. Therefore, there is a need to reduce the power consumption of smart lock devices.

[0003] Patent Document 1 discloses a gear assembly for use in a smart lock. Patent Document 1 aims to facilitate switching between automatic rotation of a door lock thumb turn using a motor and manual operation of a door installation mechanism. The gear assembly in Patent Document 1 includes a planetary gear set and a clutch. The planetary gear set includes a sun gear, at least one planetary gear, a carrier, and an outer gear. One planetary gear meshes with the sun gear. The carrier supports the planetary gears. The outer gear meshes with the planetary gears. The clutch is configured to be operable to engage and disengage with the planetary gear set so that the planetary gear set switches between a first mode and a second mode. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-028259 Summary of the Invention [Problem to be solved by the invention]

[0005] In the method of Patent Document 1, the power transmission path is switched using a solenoid. Therefore, the method of Patent Document 1 requires power to drive the solenoid each time the power transmission path is switched. A battery is installed in the smart lock device to electrically lock and unlock the target key. If the battery installed in the smart lock device runs out, the target key can no longer be locked or unlocked. Therefore, in order to reduce the power consumption of the smart lock device, it is necessary to reduce power consumption when switching the power transmission path.

[0006] An object of the present disclosure is to provide a smart lock device that can switch power transmission paths without using electricity. [Means for solving the problem]

[0007] A smart lock device according to one aspect of the present disclosure includes a motor, a drive gear attached to the motor's rotation shaft, an adapter attached to a key to be locked or unlocked, a chuck mechanism including a chuck cylinder fixed to the top of the adapter, a locking / unlocking gear formed along the outer periphery of the chuck cylinder, and a knob integrated with a cam and rotatably connected to the top of the chuck cylinder; and a clutch mechanism including a transmission gear disposed in a power transmission path between the drive gear and the locking / unlocking gear, a follower disposed in the top of the chuck cylinder and abutting the bottom of the cam, and a clutch disposed in a power transmission path between the drive gear and the transmission gear. The rotation shaft of the motor is parallel to the rotation shafts of the adapter and the chuck cylinder. When the knob is in a sideways position, the clutch intervenes in the power transmission path, transmitting the driving force of the motor to the adapter. When the knob is raised, the clutch disengages from the power transmission path, transmitting power applied to the knob to the adapter. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to provide a smart lock device that can switch power transmission paths without using electricity. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a conceptual diagram illustrating an example of the configuration of a smart lock device according to the present disclosure. [Figure 2] FIG. 1 is a conceptual diagram showing an example of the configuration of a planetary gear mechanism included in a smart lock device according to the present disclosure. [Figure 3] FIG. 2 is a conceptual diagram illustrating an example of a configuration of a chuck mechanism and a clutch mechanism according to the present disclosure. [Figure 4] FIG. 1 is a conceptual diagram for explaining an example of an operation mode of a smart lock device according to the present disclosure. [Figure 5] FIG. 1 is a conceptual diagram for explaining an example of an operation mode of a smart lock device according to the present disclosure. [Figure 6] FIG. 1 is a conceptual diagram for explaining an example of power transmission in a smart lock device according to the present disclosure. [Figure 7] FIG. 1 is a conceptual diagram for explaining an example of power transmission in a smart lock device according to the present disclosure. [Figure 8] FIG. 1 is a conceptual diagram for explaining an example of an operation mode of a smart lock device according to the present disclosure. [Figure 9] FIG. 1 is a conceptual diagram for explaining an example of an operation mode of a smart lock device according to the present disclosure. [Figure 10] FIG. 1 is a conceptual diagram for explaining an example of power transmission in a smart lock device according to the present disclosure. [Figure 11] FIG. 1 is a conceptual diagram for explaining an example of an operation mode of a smart lock device according to the present disclosure. [Figure 12] FIG. 1 is a conceptual diagram for explaining an example of an operation mode of a smart lock device according to the present disclosure. [Figure 13] FIG. 1 is a conceptual diagram for explaining an example of power transmission in a smart lock device according to the present disclosure. [Figure 14]FIG. 1 is a conceptual diagram for explaining an example of power transmission in a smart lock device according to the present disclosure. [Figure 15] FIG. 1 is a conceptual diagram illustrating an example of the configuration of a smart lock device according to the present disclosure. [Figure 16] FIG. 1 is a conceptual diagram illustrating an example of the configuration of a smart lock device according to the present disclosure. [Figure 17] FIG. 1 is a conceptual diagram illustrating an example of the configuration of a smart lock device according to the present disclosure. [Figure 18] FIG. 1 is a conceptual diagram illustrating an example of the configuration of a smart lock device according to the present disclosure. [Figure 19] FIG. 1 is a conceptual diagram illustrating an example of the configuration of a smart lock device according to the present disclosure. [Figure 20] FIG. 1 is a conceptual diagram for explaining an example of power transmission in a smart lock device according to the present disclosure. [Figure 21] FIG. 1 is a conceptual diagram for explaining an example of power transmission in a smart lock device according to the present disclosure. [Figure 22] FIG. 1 is a block diagram illustrating an example of the configuration of a smart lock device according to the present disclosure. [Figure 23] FIG. 2 is a block diagram illustrating an example of the configuration of a control device provided in a smart lock device according to the present disclosure. [Figure 24] 10 is a flowchart illustrating an example of an operation of the smart lock device according to the present disclosure. [Figure 25] FIG. 1 is a conceptual diagram illustrating an example of the configuration of a smart lock device according to the present disclosure. [Figure 26] FIG. 1 is a conceptual diagram illustrating an example of the configuration of a smart lock device according to the present disclosure. [Figure 27] FIG. 2 is a block diagram illustrating an example of a hardware configuration for executing control and processing in the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments for carrying out the present disclosure will be described with reference to the drawings. In this disclosure, the drawings used in describing each embodiment relate to one or more embodiments. Furthermore, elements included in each drawing may apply to one or more embodiments. The embodiments described below are limited in a manner that is technically preferable for carrying out the present disclosure, but this does not limit the scope of the disclosure to the following. In all drawings used in describing the following embodiments, similar parts are designated by the same reference numerals unless otherwise specified. In the following embodiments, repeated description of similar configurations and operations may be omitted. The direction of arrows in the drawings is an example and does not limit the direction of signals, etc.

[0011] (First embodiment) First, a smart lock device in a first embodiment will be described with reference to the drawings. The smart lock device of this embodiment is used in a smart lock system that locks and unlocks doors by wireless communication using a mobile terminal such as a smartphone. The smart lock device is installed in a door lock. From a security standpoint, the smart lock device is attached to the indoor side of the door. In the following, a description of the control system of the smart lock device will be omitted.

[0012] There are two methods for locking / unlocking smart locks. The first is a motor-driven method. In this method, power is transmitted from a motor installed in the device to the device's adapter to lock / unlock. The second is a method that is manually operated by the user. In this method, the user manually turns a knob attached to the adapter to lock / unlock. The smart lock device of this embodiment can manually switch between these methods. Hereinafter, unlocking and unlocking the key will be referred to as locking / unlocking.

[0013] In the drawings used in the following explanation, the adapter attached to the key to be unlocked is shown facing downwards. In actual use, the thumb turn of the key to be unlocked is fitted into the groove at the bottom of the adapter, so the smart lock device is attached so that the bottom of the drawing faces to the side. In the following, terms indicating directions such as downwards and upwards indicate relative positional relationships.

[0014] (composition) FIG. 1 is a conceptual diagram showing an example of the configuration of a smart lock device according to the present disclosure. FIG. 1 is a perspective view of the smart lock device as seen from diagonally above. In FIG. 1, some of the configuration is shown in a see-through manner. In the following, multiple gears are illustrated, but their teeth are omitted. In the following, explanations of the materials of the components of the smart lock device 10 are omitted.

[0015] The smart lock device 10 includes a motor 11, a planetary gear mechanism 12, a chuck mechanism 13, a clutch mechanism 15, and a transmission gear 16. The motor 11, the planetary gear mechanism 12, the chuck mechanism 13, the clutch mechanism 15, and the transmission gear 16 are installed in a main body 100. In practical use, the smart lock device 10 is housed inside a housing (not shown).

[0016] The main body 100 is a member that supports the motor 11, the planetary gear mechanism 12, the chuck mechanism 13, the clutch mechanism 15, and the transmission gear 16. The main body 100 is composed of an upper plate 101, a lower plate 102, and a side plate 103. In FIG. 1, only the outline of the upper plate 101 is shown. The upper plate 101 and the lower plate 102 are arranged in a plane parallel to the horizontal. In a plan view, the upper plate 101 and the lower plate 102 have a shape in which a ring-shaped portion and a rectangular portion are integrated. In a plan view, the upper plate 101 and the lower plate 102 overlap each other. The side plate 103 connects the upper plate 101 and the lower plate 102. A chuck cylinder 131 is arranged within the ring of the ring-shaped portion of the upper plate 101 and the lower plate 102. The main body 100 rotatably supports the chuck cylinder 131 that constitutes the chuck mechanism 13. The rectangular portion of the upper plate 101 has a rotation axis S 11 The hole into which the shaft S is inserted16 The rectangular portion of the lower plate 102 is formed with a hole into which part of the clutch mechanism 15 is inserted.

[0017] The motor 11 has a rotation axis S 11 The rotation axis S 11 The sun gear (described later) of the planetary gear mechanism 12 is attached to the lower part of the rotation axis S. 11 The carrier (described later) of the planetary gear mechanism 12 is rotatably connected to the lower end of the rotation axis S. 11 The lower end of the planetary gear mechanism 12 is connected to the center of the sun gear (described later). 11 When rotated, the axis of rotation S 11 The sun gear connected to the bottom end of the shaft rotates. 11 The rotation angle may be equal to or greater than 360 degrees, or may be less than 360 degrees. For example, the motor 11 is realized by a DC motor, an AC motor, a stepping motor, a servo motor, or the like.

[0018] FIG. 2 is a conceptual diagram showing an example of the configuration of a planetary gear mechanism included in a smart lock device according to the present disclosure. FIG. 2 is a plan view of the planetary gear mechanism viewed from above. The planetary gear mechanism 12 is composed of a sun gear 121, multiple planetary gears 122, internal and external gears 125, and a carrier 127. The planetary gear mechanism 12 is a form of drive gear. The planetary gear mechanism 12 has three planetary gears 122. The planetary gear mechanism 12 may have three or more planetary gears 122. The rotational planes of the sun gear 121, the multiple planetary gears 122, and the internal and external gears 125 are set in the same horizontal plane as the rotational plane of the transfer gear 16. Although multiple gears are shown in FIG. 2, their teeth are omitted.

[0019] The sun gear 121 is a circular gear. The sun gear 121 has a rotation axis S at its center. 11 The sun gear 121 has a rotation axis S passing through its center. 11 Rotation axis S 11 is installed perpendicular to the rotation plane of the sun gear 121. The sun gear 121 rotates in response to the driving of the motor 11.

[0020] A plurality of teeth are formed on the side surface of the sun gear 121. The plurality of teeth are formed so as to surround the outer periphery of the sun gear 121. The plurality of teeth formed on the side surface of the sun gear 121 mesh with a plurality of teeth formed on the side surface of the planetary gears 122. In other words, the sun gear 121 meshes with the plurality of planetary gears 122. When the motor 11 is driven with the movement of the carrier 127 restrained by the clutch 155, the plurality of planetary gears 122 rotate around the rotation axis S in accordance with the rotation of the sun gear 121. 22 The planetary gears 122 rotate around the rotation axis S 22 Rotation around the sun gear 121 is called rotation. On the other hand, when the internal and external gears 125 rotate with the carrier 127 no longer constrained by the clutch 155, the multiple planetary gears 122 rotate around the sun gear 121. Rotation of the multiple planetary gears 122 around the sun gear 121 is called revolution.

[0021] The planetary gear 122 is a circular gear. The center of the planetary gear 122 is a rotation axis S 22 The planetary gear 122 has a rotation axis S passing through its center. 22 Rotation axis S 22 The lower end of the rotation axis S is fixed to the carrier 127. 22 is installed perpendicular to the plane of rotation of the planet gear 122.

[0022] A plurality of teeth are formed on the side surface of the planetary gear 122. The plurality of teeth are formed so as to surround the outer periphery of the planetary gear 122. The plurality of teeth formed on the side surface of the planetary gear 122 mesh with a plurality of teeth formed on the side surface of the sun gear 121. In other words, the planetary gear 122 meshes with the sun gear. Furthermore, the plurality of teeth formed on the side surface of the planetary gear 122 mesh with a plurality of teeth formed on the inner periphery of the internal and external gears 125. In other words, the planetary gear 122 meshes with the internal and external gears 125. When the clutch 155 and the carrier 127 are connected, the plurality of planetary gears 122 rotate about the rotation axis S in accordance with the rotation of the sun gear 121. 22The internal and external gears 125 rotate in response to the rotation of the planetary gears 122. On the other hand, when the clutch 155 and the carrier 127 are separated, the multiple planetary gears 122 rotate around the sun gear 121 (rotation axis S) in response to the rotation of the internal and external gears 125. 11 When the planetary gears 122 revolve, the carrier 127 rotates freely.

[0023] The internal and external gears 125 are annular gears. A plurality of teeth are formed on the inner circumference and side surfaces of the internal and external gears 125. The plurality of teeth are formed so as to surround the inner circumference and outer circumference of the internal and external gears 125. The plurality of teeth formed on the inner circumference of the internal and external gears 125 mesh with a plurality of teeth formed on the side surfaces of the plurality of planetary gears 122. In other words, the internal and external gears mesh with the plurality of planetary gears. Furthermore, a plurality of teeth formed on the outer circumference of the internal and external gears 125 mesh with a plurality of teeth formed on the side surfaces of the transmission gear 16. In other words, the internal and external gears mesh with the transmission gear 16. The internal and external gears 125 are sandwiched between the side surfaces of the plurality of planetary gears 122 and the side surface of the transmission gear 16, and rotate about the rotation axis S 11 That is, the internal and external gear 125 is supported rotatably while meshing with the plurality of planetary gears 122 and the transmission gear 16.

[0024] The carrier 127 is a plate-like member. In a plan view, the carrier 127 has a shape that matches the contours formed by the sun gear 121 and the planetary gears 122. The shape of the carrier 127 is not limited to the example shown in FIG. 2. The carrier 127 is rotatable about the rotation axis S 11 At the bottom of the 11 The carrier 127 is connected to the shaft S so that it can rotate freely around the shaft S. 22 are erected. Multiple rotation axes S 22 is the rotation axis S 11 When the clutch 155 is connected, the carrier 127 cannot rotate. In this case, the rotation axis S 22 The planetary gear 122 mounted on the sun gear 121 (rotation axis S 11On the other hand, when the clutch 155 is separated, the carrier 127 can rotate. In this case, the rotation axis S 22 The planetary gear 122 mounted on the sun gear 121 (rotation axis S 11 ) can revolve around the sun.

[0025] Fig. 3 is a conceptual diagram showing an example of the configuration of the chuck mechanism and clutch mechanism according to the present disclosure. Fig. 3 is a cross-sectional view showing a cross section of the clutch cut along the longitudinal direction. Fig. 3 illustrates at least one gear, but its teeth are omitted.

[0026] The chuck mechanism 13 is made up of a chuck cylinder 131, a cam 132, a knob 133, a locking / unlocking gear 135, and an adapter 137. The clutch mechanism 15 is made up of a follower 151, a transmission rod 152, a beam 153, and a clutch 155.

[0027] The chuck cylinder 131 is a columnar member. A cylindrical recess is formed in the upper part of the chuck cylinder 131. A through hole (vertical through hole) is formed in the chuck cylinder 131 along the cylindrical axis (rotation axis). A through hole (horizontal through hole) is formed in the side part of the chuck cylinder 131 along a horizontal plane. The vertical through hole and the horizontal through hole intersect inside the chuck cylinder 131. The chuck cylinder 131 is fixed to the upper surface of the adapter 137.

[0028] The cam 132 is a member having an oval cross section. The cam 132 extends in an axial direction perpendicular to the oval cross section. The oval cross section has a first end with a smallest radius of curvature and a second end with a largest radius of curvature. The line segment connecting the first end and the second end is the major axis of the oval cross section. The oval cross section is symmetrical about the major axis. For example, the cross section of the cam 132 may be an oval shape, such as an ellipse or an oval circle, instead of an oval shape. For example, the cross section of the cam 132 may be an asymmetric shape instead of an oval shape.

[0029] Cam 132 is integrated with knob 133 on the side of the first end. When knob 133 is laid on its side, the side surface portion, which is the arcuate end of the first end of cam 132, abuts against the upper surface of follower 151. When knob 133 is moved, the contact portion of cam 132 slides on the upper surface of follower 151. As knob 133 is raised, a portion of cam 132 near the second end abuts against the upper surface of follower 151. When knob 133 becomes perpendicular to the upper surface of follower 151, the second end of cam 132 abuts against the upper surface of follower 151.

[0030] The knob 133 is a semicircular plate-like member. The knob 133 is used to switch the operation mode of the smart lock device 10. Both ends of the linear portion of the knob 133 are machined into a cylindrical shape. Both ends of the linear portion of the knob 133 are rotatably inserted into through holes opened in the upper side surfaces of the chuck cylinder 131. Both ends of the linear portion of the knob 133 are rotatably inserted into through holes opened in the upper side surfaces of the chuck cylinder 131. 33 The shape of the knob 133 is not limited to a semicircular shape as long as the knob 133 can be accommodated in the recessed portion at the top of the chuck cylinder 131 in the sideways position. When the knob 133 is raised from the sideways position, the rotation axis S 33 When the knob 133 is turned sideways from the upright position, the rotation axis S 33 By rotating the knob 133 within a range of 0 to 90 degrees around the center, the knob 133 is turned sideways.

[0031] When the knob 133 is in a state where it is laid on its side, the power of the motor 11 is used to open and close the lock. When the knob 133 is in a state where it is laid on its side, the carrier 127 of the planetary gear mechanism 12 is fixed by the clutch 155 of the clutch mechanism 15. In this state, the power of the motor 11 is transmitted between the motor 11, the rotary shaft S 11The power is transmitted in this order: sun gear 121, planetary gears 122, internal and external gears 125, transmission gear 16, locking / unlocking gear 135, chuck cylinder 131, and adapter 137. The operating mode in which motor 11 is used is called automatic mode. In automatic mode, planetary gear 122 rotates on its own axis without revolving around sun gear 121. For this reason, the operating type in automatic mode is called star type.

[0032] When the knob 133 is in the upright position, the power applied from the knob 133 is used to open or close the lock. When the knob 133 is in the upright position, the carrier 127 of the planetary gear mechanism 12 is not fixed by the clutch 155 of the clutch mechanism 15. In this state, the power applied to the knob 133 is transmitted through two paths. The first path is through the knob 133, the chuck cylinder 131, and the adapter 137. The second path is through the knob 133, the chuck cylinder 131, the locking / unlocking gear 135, the transmission gear 16, the internal / external gear 125, the planetary gear 122, and the carrier 127. The operating mode in which the knob 133 is used is called the manual mode. In the manual mode, the planetary gear 122 rotates on its axis while revolving around the sun gear 121. Therefore, the operating type in the manual mode is called the solar type.

[0033] The locking / unlocking gear 135 is an annular gear arranged along the side surface of the chuck cylinder 131. The rotational surface of the locking / unlocking gear 135 is set in the same horizontal plane as the rotational surfaces of the sun gear 121, the multiple planetary gears 122, and the internal / external gear 125 that make up the planetary gear mechanism 12, and the rotational surface of the transmission gear 16. A plurality of teeth are formed on the side surface of the locking / unlocking gear 135. The plurality of teeth are formed so as to surround the outer periphery of the locking / unlocking gear 135. The plurality of teeth formed on the side surface of the locking / unlocking gear 135 have the same pitch as the plurality of teeth formed on the side surface of the transmission gear 16. The plurality of teeth formed on the side surface of the locking / unlocking gear 135 mesh with the plurality of teeth formed on the side surface of the transmission gear 16. When the transmission gear 16 rotates, the chuck cylinder 131 on which the locking / unlocking gear 135 is formed and the adapter 137 rotate around the cylindrical axis of the chuck mechanism 13. Furthermore, when the knob 133 is rotated, the chuck cylinder 131 on which the locking / unlocking gear 135 is formed and the adapter 137 rotate around the cylindrical axis of the chuck mechanism 13 .

[0034] The adapter 137 is fixed below the chuck cylinder 131. A hole is formed in the upper part of the adapter 137 to accommodate the lower part of the transmission rod 152 of the clutch mechanism 15. A groove is formed in the lower part of the adapter 137 to engage with the knob of a thumb turn provided on the door. As the adapter 137 rotates, the knob (not shown) engaged with the groove rotates. As a result, the thumb turn (key) provided on the door is locked / unlocked. If the key is not of the type that locks and unlocks by turning the thumb turn, the adapter 137 can be replaced with one having a shape and function that corresponds to the type of key to be locked and unlocked.

[0035] The follower 151 is a circular plate-like member. The follower 151 is disposed in the upper cylindrical portion of the chuck cylinder 131. A transmission rod 152 is connected to the lower surface of the follower 151. A cam 132 is disposed on the upper surface of the follower 151. The follower 151 moves up and down in the upper cylindrical portion of the chuck cylinder 131 in accordance with the movement of the cam 132.

[0036] The transmission rod 152 is a cylindrical rod-like member. The transmission rod 152 is housed inside the vertical through-hole of the chuck cylinder 131. The upper end of the transmission rod 152 is connected to the lower surface of the follower 151. The lower part of the transmission rod 152 extends to the inside of the upper hole of the adapter 137. The beam 153 is connected to the side of the transmission rod 152 via a horizontal through-hole opened in the side of the chuck cylinder 131. The cross section of the transmission rod 152 need not be circular, but may be elliptical or polygonal.

[0037] The beam 153 is a rod-like member having a rectangular prism shape. A first end of the beam 153 is connected to a side surface of the transmission rod 152. The beam 153 extends to below the planetary gear mechanism 12 through a horizontal through-hole formed in the side surface of the chuck cylinder 131. A clutch 155 is disposed above a second end of the beam 153 located below the planetary gear mechanism 12. The beam 153 moves up and down in response to the up and down movement of the follower 151.

[0038] The clutch 155 is a plate-like member. For example, the clutch 155 is a circular plate-like member. The clutch 155 is fixed to the upper surface of the second end of the beam 153. The clutch 155 is disposed at a position facing the carrier 127 of the planetary gear mechanism 12. A cylindrical recess is formed in the upper part of the clutch 155. The cylindrical recess is formed so as to be in contact with the rotation shaft S of the motor 11. 11 The clutch 155 moves up and down in conjunction with the up and down movement of the follower 151.

[0039] When the follower 151 is in the uppermost position, the upper surface of the clutch 155 comes into contact with the carrier 127. In this state, the operation mode is the automatic mode (star type). When the upper surface of the clutch 155 comes into contact with the carrier 127, the clutch 155 is connected to the carrier 127. When the clutch 155 is connected, the movement of the carrier 127 is fixed. When the movement is fixed, the carrier 127 rotates about the rotation axis S 11 Cannot rotate around the center.

[0040] When the follower 151 is in the lowest position, the upper surface of the clutch 155 is separated from the carrier 127. In this state, the operation mode is the manual mode (solar type). When the upper surface of the clutch 155 is separated from the carrier 127, the clutch 155 is disengaged from the carrier 127. When the clutch 155 is disengaged, the movement of the carrier 127 is released. When the movement is released, the carrier 127 rotates around the rotation axis S 11 It can rotate around the center.

[0041] The transmission gear 16 is a circular gear. The center of the transmission gear 16 is a rotation axis S 16 The transmission gear 16 has a rotation axis S passing through its center. 16 Rotation axis S 16 is rotatably fixed to the upper plate 101 of the main body 100. It is set on the same horizontal plane as the rotation planes of the sun gear 121, planetary gears 122, internal and external gears 125, and locking / unlocking gear 135.

[0042] A plurality of teeth are formed on the side of the transmission gear 16. The plurality of teeth are formed so as to surround the outer periphery of the transmission gear 16. The plurality of teeth formed on the side of the transmission gear 16 have the same pitch as the plurality of teeth formed on the side of the internal and external gears. The plurality of teeth formed on the side of the transmission gear 16 mesh with the plurality of teeth formed on the side of the internal and external gears. In addition, the plurality of teeth formed on the side of the transmission gear 16 have the same pitch as the plurality of teeth formed on the side of the locking / unlocking gear 135. The plurality of teeth formed on the side of the transmission gear 16 mesh with the plurality of teeth formed on the side of the locking / unlocking gear 135.

[0043] [Operation mode] Next, the operation modes of the smart lock device 10 will be described with reference to the drawings. Below, we will explain the operation mode (automatic mode) in which the clutch 155 and the carrier 127 are connected, and the operation mode (manual mode) in which the clutch 155 and the carrier 127 are disconnected. Also below, we will show the transition state between the automatic mode and the manual mode.

[0044] <Automatic mode> 4 and 5 are conceptual diagrams for explaining an example of an operation mode (automatic mode) of the smart lock device according to the present disclosure. Fig. 4 is a cross-sectional view of the chuck mechanism taken along a direction perpendicular to the extension direction of the beam of the clutch mechanism. Fig. 5 is a cross-sectional view of the smart lock device taken along the extension direction of the beam of the clutch mechanism.

[0045] In the automatic mode (star type), the knob 133 is in a state of being laid down on its side. The follower 151 is in a state in which the side of the cam 132 is in contact with the follower 151. The follower 151 is positioned at the top. The clutch 155, which is linked to the movement of the follower 151, is also positioned at the top. In this state, the top surface of the clutch 155 is connected to the carrier 127. When connected to the clutch 155, the movement of the carrier 127 is fixed. When the movement is fixed, the carrier 127 rotates about the rotation axis S 11 Cannot rotate around the center.

[0046] 6 and 7 are conceptual diagrams for explaining an example of power transmission in a smart lock device according to the present disclosure. Fig. 6 shows an example of power transmission in a smart lock device. In Fig. 6, arrows indicate how power from the motor is transmitted to the adapter. Fig. 7 shows an example of the flow of power transmission in a smart lock device.

[0047] The motor 11 is driven in response to a signal that instructs unlocking or locking in response to the proximity of a smartphone or IC card used by a user. The motor 11 rotates around a rotation axis S in opposite directions for unlocking and locking. 11 Rotate the axis of rotation S 11The sun gear 121 rotates in response to the rotation of the sun gear 121. The planetary gears 122 rotate in response to the rotation of the planetary gears 122. The internal / external gear 125 rotates in response to the rotation of the planetary gears 122. The carrier 127 is fixed by the clutch 155 and does not rotate. The transmission gear 16 rotates in response to the rotation of the internal / external gear 125. The locking / unlocking gear 135 rotates in response to the rotation of the transmission gear 16. The chuck cylinder 131 and the adapter 137 rotate in response to the rotation of the locking / unlocking gear 135. The thumbturn knob (not shown) rotates in response to the rotation of the adapter 137. The key is locked or unlocked in response to the rotation of the thumbturn knob.

[0048] <Transition state> 8 and 9 are conceptual diagrams for explaining an example of an operation mode (transition state) of the smart lock device according to the present disclosure. Fig. 8 is a cross-sectional view of the chuck mechanism taken along a direction perpendicular to the extension direction of the beam of the clutch mechanism. Fig. 9 is a cross-sectional view of the smart lock device taken along the extension direction of the beam of the clutch mechanism.

[0049] In the transition state, the knob 133 is raised. The follower 151 is in a state in which the side closer to the second end than the side of the cam 132 is in contact with the follower 151. The follower 151 is located at a height intermediate between the top and bottom. The clutch 155, which is linked to the movement of the follower 151, is also located at a height intermediate between the top and bottom. In this state, the upper surface of the clutch 155 separates from the carrier 127. When the clutch 155 separates, the movement of the carrier 127 is released. When the movement is released, the carrier 127 moves in a direction parallel to the rotation axis S. 11 It can rotate around the center.

[0050] Fig. 10 is a conceptual diagram for explaining an example of power transmission in a smart lock device according to the present disclosure. Fig. 10 shows an example of the flow of power transmission in a smart lock device according to the present disclosure. The knob action includes an action in which a tilted knob 133 is raised and an action in which an upright knob 133 is tilted sideways.

[0051] When the knob 133 that has been laid on its side is raised, the follower 151 moves downward in response to the rotation of the cam 132. The clutch 155 moves downward in conjunction with the downward movement of the follower 151. When the clutch 155 moves downward, the upper surface of the clutch 155 separates from the lower surface of the carrier 127, and the clutch 155 and the carrier 127 are disconnected.

[0052] When the upright knob 133 is turned over on its side, the follower 151 moves upward in response to the rotation of the cam 132. The clutch 155 moves upward in conjunction with the upward movement of the follower 151. When the clutch 155 moves upward, the upper surface of the clutch 155 comes into contact with the lower surface of the carrier 127, and the clutch 155 and the carrier 127 are connected to each other.

[0053] <Manual mode> 11 and 12 are conceptual diagrams for explaining an example of an operation mode (manual mode) of the smart lock device according to the present disclosure. Fig. 11 is a cross-sectional view of the chuck mechanism taken along a direction perpendicular to the extension direction of the beam of the clutch mechanism. Fig. 12 is a cross-sectional view of the smart lock device taken along the extension direction of the beam of the clutch mechanism.

[0054] In the manual mode (solar type) operation mode, the knob 133 is in a pulled-up state. The follower 151 is in a state in which the second end of the cam 132 is in contact with the follower 151. The follower 151 is in the lowest position. The clutch 155, which is linked to the movement of the follower 151, is also in the lowest position. In this state, the top surface of the clutch 155 is the furthest from the carrier 127. Because it is separated from the clutch 155, the movement of the carrier 127 is released. When the movement of the carrier 127 is released, the carrier 127 rotates around the rotation axis S 11 It can rotate around the center.

[0055] 13 and 14 are conceptual diagrams for explaining an example of power transmission in a smart lock device according to the present disclosure. In Fig. 13, arrows indicate how power applied in response to the rotation of the knob is transmitted to the adapter. In Fig. 13, arrows indicate how power from the motor is transmitted to the adapter. Fig. 14 shows an example of the flow of power transmission in a smart lock device.

[0056] The chuck cylinder 131 and the adapter 137 rotate in response to the rotation of the knob 133. The thumb turn knob (not shown) rotates in response to the rotation of the adapter 137, and the key is locked or unlocked.

[0057] Furthermore, the rotation of the chuck cylinder 131 in response to the rotation of the knob 133 causes the locking / unlocking gear 135 to rotate. The transmission gear 16 rotates in response to the rotation of the locking / unlocking gear 135. The internal / external gear 125 rotates in response to the rotation of the transmission gear 16. When the internal / external gear 125 rotates, the multiple planetary gears 122 rotate. In response to the rotation of the multiple planetary gears 122, the sun gear 121 rotates. In response to the rotation of the sun gear 121, the rotation axis S 11 The carrier 127 connected to the lower end of the shaft rotates freely.

[0058] (Variation) Next, a modified example of this embodiment will be described with reference to the drawings. This modified example has a mechanism that allows the knob that accepts manual operation to be tilted sideways. In the following, explanations of the same configurations, functions, operations, etc. as those described so far will be omitted.

[0059] 15 to 17 are conceptual diagrams showing an example of the configuration of a smart lock device according to the present disclosure. 15 to 17 show a chuck mechanism and a portion of the clutch mechanism. 15 to 17 are cross-sectional views of the chuck mechanism cut along a direction perpendicular to the extension direction of the beam of the clutch mechanism. Cross-sectional views of the smart lock device cut along the extension direction of the beam of the clutch mechanism are omitted.

[0060] Smart lock device 10-1 of this modified example includes elastic member 171 and elastic member 172. Except for the inclusion of elastic member 171 and elastic member 172, smart lock device 10-1 is similar to smart lock device 10. In this modified example, smart lock device 10-1 is provided with elastic member 171 and elastic member 172. Smart lock device 10-1 may be configured to include elastic member 171 or elastic member 172.

[0061] The elastic member 171 is attached to the cam 132. The elastic member 171 is a biasing member that biases the knob 133, which is integrated with the cam 132, to a sideways position. When the knob 133 is raised, a restoring force acts on the elastic member 171. The elastic member 171 biases the knob 133 in a direction that causes it to fall sideways. When the upright knob 133 is released, the restoring force of the elastic member 171 causes the knob 133 to return to its sideways position. For example, the elastic member 171 can be realized by a spring such as a torsion spring. There are no limitations on the biasing member that realizes the elastic member 171, as long as a restoring force acts when the knob 133 is raised and the biasing member can bias the knob 133 in a direction that causes it to fall sideways.

[0062] The elastic member 172 is disposed in a hole in the upper portion of the adapter 137. The elastic member 172 is disposed below the transmission rod 152. The elastic member 172 is a biasing member that biases the follower 151 upward via the transmission rod 152. When the knob 133 is raised, the follower 151 moves downward, and a restoring force acts on the elastic member 172. The elastic member 172 biases the follower 151 upward via the transmission rod 152. When the raised knob 133 is released, the follower 151 returns to its uppermost position in response to the restoring force of the elastic member 172. For example, the elastic member 172 can be realized by a spring such as a coil spring or a leaf spring. For example, the elastic member 172 may also be realized by a cylinder such as a hydraulic cylinder or a pneumatic cylinder. The biasing member that realizes the elastic member 172 is not limited as long as it can bias the follower 151 upward via the transmission rod 152.

[0063] 15 shows the state in which the knob is laid down. In this state, the knob 133 is laid down in response to the bias of the elastic member 171, and the follower 151 is lifted to the uppermost position in response to the bias of the elastic member 172.

[0064] 16 shows a state in which a force trying to raise the knob 133 is being applied. In this state, the force trying to raise the knob 133 exceeds the force biasing the elastic members 171 and 172. In this state, the knob 133 is raised and the follower 151 moves downward.

[0065] 17 shows the knob in an upright position. In this position, the force holding the knob 133 upright exceeds the force biasing the elastic members 171 and 172. When the knob 133 is twisted in this position, the chuck cylinder 131 and the adapter 137 rotate. The rotation of the adapter 137 rotates the thumbturn knob (not shown), locking or unlocking the door. When the force holding the knob 133 upright is released, the biasing force of the elastic member 171 causes the knob 133 to tip over, and the biasing force of the elastic member 172 causes the follower 151 to rise to the top position.

[0066] According to this modification, unless a force is applied to the knob 133, the knob 133 falls over and the follower 151 is positioned at the top. Therefore, according to this modification, the smart lock device 10-1 can be reliably operated in the automatic mode unless the user manually operates it.

[0067] As described above, the smart lock device of this embodiment includes a motor, a drive gear, a chuck mechanism, a clutch mechanism, and a transmission gear. The drive gear is attached to the motor's rotation shaft. The drive gear is composed of a planetary gear mechanism having a sun gear, a carrier, multiple planetary gears, and internal and external gears. The sun gear is attached to the motor's rotation shaft. The carrier is rotatably connected to the lower part of the motor's rotation shaft. Multiple rotation shafts are erected on the upper surface of the carrier, centered on the motor's rotation shaft. Each of the multiple planetary gears is connected to each of the multiple rotation shafts installed on the upper surface of the carrier and meshes with the sun gear. The annular internal and external gears mesh with the multiple planetary gears on their inner surface and with the transmission gear on their outer surface. The chuck mechanism includes a chuck cylinder, a cam, a knob, a lock / unlock gear, and an adapter. The chuck cylinder is fixed to the upper part of the adapter. The knob is integrated with the cam. The knob is rotatably connected to the upper part of the chuck cylinder. The locking / unlocking gear is formed along the outer periphery of the chuck cylinder. The adapter is attached to the key to be locked / unlocked. The clutch mechanism has a follower, a transmission rod, a beam, and a clutch. The follower is arranged on the upper part of the chuck cylinder. The follower abuts the lower part of the cam. The transmission rod is arranged on the rotation axis of the chuck cylinder. The transmission rod supports the follower. The beam extends in a direction perpendicular to the transmission rod. A clutch is arranged on the upper surface of the beam. The clutch is arranged in the power transmission path between the drive gear and the transmission gear. The clutch mechanism is configured so that the height of the clutch decreases in conjunction with the movement of raising the knob. The transmission gear is arranged in the power transmission path between the drive gear and the locking / unlocking gear.

[0068] In this embodiment, when the knob is in a sideways position, a clutch intervenes in the power transmission in the power transmission path, transmitting the driving force of the motor to the adapter. In this state, the target key is automatically locked or unlocked. On the other hand, when the knob is raised, the clutch disengages the power transmission in the power transmission path, transmitting the power applied to the knob to the adapter. In this state, the target key is manually locked or unlocked. According to this embodiment, the power transmission path can be switched without using electrical power, depending on the operation applied to the knob. Furthermore, in this embodiment, the rotation axis of the motor is parallel to the rotation axes of the adapter and the chuck cylinder. Therefore, according to this embodiment, the center distance does not vary depending on the gear connection, and high transmission efficiency can be maintained.

[0069] In one aspect of this embodiment, the clutch is configured to connect to the carrier and restrict rotation of the carrier when the knob is in a sideways position. The clutch is configured to separate from the carrier and release the restriction on the carrier when the knob is in a raised position. According to this aspect, the power transmission path can be switched by restricting / releasing the carrier with the clutch. According to this aspect, the center distance is less likely to vary depending on the gear connection, so high transmission efficiency can be maintained.

[0070] In one aspect of this embodiment, an elastic member that biases the knob to lie on its side is disposed on the upper surface of the follower. According to this aspect, when the knob that has been manually set upright is released, the knob falls to its side. Therefore, according to this aspect, the convenience of manual operation of the smart lock device is improved.

[0071] In one aspect of this embodiment, an elastic member is disposed below the transmission rod to bias the transmission rod toward the cam. According to this aspect, when the user releases the knob that has been manually set up, the follower moves upward, causing the knob to fall to its side. Therefore, according to this aspect, the convenience of manual operation of the smart lock device is improved.

[0072] Generally, smart lock devices have two types of locking and unlocking methods. The first is a motor-driven method. In this motor-driven method, power is transmitted from the motor installed in the smart lock device to the adapter to lock and unlock. The second is a manual method by the user. In this manual operation, the user turns a knob (thumb turn) attached to the adapter to lock and unlock. With this manual operation method, the motor and drive gears may be damaged by the user's operating force. To prevent damage to the drive gear, typical smart lock motors are equipped with a mechanism that cuts off the power transmission path of the drive unit using a pendulum gear mechanism or planetary gear mechanism. With a cutoff mechanism using a pendulum gear mechanism, the center distance varies depending on the gear connection, making it difficult to maintain high transmission efficiency, posing challenges in terms of product performance and battery life. Some planetary gear mechanism cutoff mechanisms use actuators such as solenoids to cut off the power transmission. With this cutoff mechanism, the smart lock device's battery drains faster due to the actuator's operation, shortening its battery life. Furthermore, actuators such as solenoids are relatively expensive, which increases the product price.

[0073] (Second embodiment) Next, a smart lock device according to a second embodiment will be described with reference to the drawings. The smart lock device of this embodiment differs from the smart lock device of the first embodiment mainly in the shape of the gear arranged between the motor and the chuck mechanism. The smart lock device of this embodiment does not include a planetary gear mechanism. In the following, descriptions of configurations, mechanisms, operations, etc. similar to those of the first embodiment may be omitted. The configuration of a modified example of the first embodiment may also be applied to the smart lock device of this embodiment.

[0074] (composition) 18-19 are conceptual diagrams showing an example of the configuration of a smart lock device according to the present disclosure. 18-19 are cross-sectional views of the smart lock device cut along the extension direction of the beam of the clutch mechanism. 18 shows the smart lock device in automatic mode. 19 shows the smart lock device in manual mode. 18-19 show multiple gears, but their teeth are omitted. In the following, explanations of the materials of the components of smart lock device 20 will be omitted.

[0075] The smart lock device 20 includes a motor 21, a drive gear 22, a chuck mechanism 23, a clutch mechanism 25, and a transmission gear 26. The motor 21, the drive gear 22, the chuck mechanism 23, the clutch mechanism 25, and the transmission gear 26 are installed in a main body 200. In practical use, the smart lock device 20 is housed inside a housing (not shown).

[0076] The main body 200 has the same configuration as the main body 100 of the first embodiment. The main body 200 is a member that supports the motor 21, the drive gear 22, the chuck mechanism 23, the clutch mechanism 25, and the transmission gear 26. The main body 200 is composed of an upper plate 201, a lower plate 202, and a side plate 203. The upper plate 201 and the lower plate 202 are arranged in a plane parallel to the horizontal plane. In a plan view, the upper plate 201 and the lower plate 202 have a shape in which a ring-shaped portion and a rectangular portion are integrated. In a plan view, the upper plate 201 and the lower plate 202 overlap each other. The side plate 203 connects the upper plate 201 and the lower plate 202. A chuck cylinder 231 is arranged within the ring-shaped portions of the upper plate 201 and the lower plate 202. The main body 200 rotatably supports the chuck cylinder 231 that constitutes the chuck mechanism 23. The rectangular portion of the upper plate 201 has a rotation axis S 21 The hole into which the shaft S is inserted 26 The rectangular portion of the lower plate 202 is formed with a hole into which part of the clutch mechanism 25 is inserted.

[0077] The motor 21 has the same configuration as the motor 11 of the first embodiment. 21 The rotation axis S21 A drive gear 22 is fixed to the lower end of the rotation axis S. 21 The lower end of the shaft S is connected to the center of the drive gear 22. 21 When rotated, the axis of rotation S 21 A drive gear 22 connected to the lower end of the shaft rotates.

[0078] The drive gear 22 is a bevel gear. The drive gear 22 has a rotation axis S 21 The drive gear 22 has a rotation axis S passing through its center. 21 Rotation axis S 21 is installed perpendicular to the rotation plane of the drive gear 22. The radius of the circle on the lower surface of the drive gear 22 is smaller than that of the circle on the upper surface. The side surface of the drive gear 22 has a slope that faces diagonally downward from the periphery of the upper surface to the periphery of the lower surface. The side surface of the drive gear 22 is called the side slope. A plurality of teeth is formed on the side slope of the drive gear 22. The plurality of teeth is formed so as to surround the outer periphery of the drive gear 22. The plurality of teeth formed on the side slope of the drive gear 22 has the same pitch as the plurality of teeth formed on the side slope of the clutch 255 that constitutes the clutch mechanism 25. The plurality of teeth formed on the side slope of the drive gear 22 mesh with the plurality of teeth formed on the side slope of the clutch 255.

[0079] The chuck mechanism 23 is made up of a chuck cylinder 231, a cam 232, a knob 233, a locking / unlocking gear 235, and an adapter 237. The clutch mechanism 25 is made up of a follower 251, a transmission rod 252, a beam 253, and a clutch 255.

[0080] The chuck cylinder 231 has the same configuration as the chuck cylinder 131 of the first embodiment. The chuck cylinder 231 is a columnar member. A cylindrical recess is formed in the upper part of the chuck cylinder 231. A through hole (vertical through hole) is formed vertically along the cylindrical axis in the chuck cylinder 231. A through hole (horizontal through hole) is formed vertically along the horizontal plane in the side part of the chuck cylinder 231. The vertical through hole and the horizontal through hole intersect inside the chuck cylinder 231. The chuck cylinder 231 is fixed to the upper surface of the adapter 237.

[0081] The cam 232 has the same configuration as the cam 132 of the first embodiment. The cam 232 is a member having an oval cross section. The cam 232 extends in an axial direction perpendicular to the oval cross section. The oval cross section has a first end with a smallest radius of curvature and a second end with a largest radius of curvature. The line segment connecting the first end and the second end is the major axis of the oval cross section. The oval cross section is symmetrical with respect to the major axis.

[0082] Cam 232 is integrated with knob 233 on the side of the first end. When knob 233 is laid on its side, the side surface portion, which is the arcuate end of the first end of cam 232, abuts against the upper surface of follower 251. When knob 233 is moved, the contact portion of cam 232 slides on the upper surface of follower 251. As knob 233 is raised, a portion of cam 232 near the second end abuts against the upper surface of follower 251. When knob 233 becomes perpendicular to the upper surface of follower 251, the second end of cam 232 abuts against the upper surface of follower 251.

[0083] The knob 233 has the same configuration as the knob 133 of the first embodiment. The knob 233 is a semicircular plate-like member. The knob 233 is used to switch the operation mode of the smart lock device 20. Both ends of the linear portion of the knob 233 are machined into a cylindrical shape. Both ends of the linear portion of the knob 233 are rotatably inserted into through-holes formed in the upper side surfaces of the chuck cylinder 231. Both ends of the linear portion of the knob 233 function as a rotation axis. When the knob 233 is pulled up from a lying state, the knob 233 is turned upright by rotation around the rotation axis. When the knob 233 is turned down from a lying state, the knob 233 is turned down by rotation within a range of 0 to 90 degrees around the rotation axis.

[0084] When the knob 233 is in a state where it is laid on its side, the power of the motor 21 is used to open and close the lock. When the knob 233 is in a state where it is laid on its side, the drive gear 22 and the clutch 255 are engaged. In this state, the power of the motor 21 is 21 The power is transmitted in this order through the drive gear 22, the clutch 255, the transmission gear 26, the locking / unlocking gear 235, the chuck cylinder 231, and the adapter 237. The operating mode in which the motor 21 is used is called the automatic mode.

[0085] When the knob 233 is in the upright position, the power applied from the knob 233 is used to open and close the lock. When the knob 233 is in the upright position, the drive gear 22 and the clutch 255 are not engaged. In this state, the power applied to the knob 233 is transmitted through two paths. The first path is through the knob 233, the chuck cylinder 231, and the adapter 237. The second path is through the knob 233, the chuck cylinder 231, the locking / unlocking gear 235, and the transmission gear 26. The operating mode in which the knob 233 is used is called the manual mode.

[0086] The locking / unlocking gear 235 is an annular bevel gear arranged along the side surface of the chuck cylinder 231. The rotational surface of the locking / unlocking gear 235 is set in the same horizontal plane as the rotational surfaces of the drive gear 22 and the transmission gear 26. The outer circumference of the lower surface of the locking / unlocking gear 235 is larger than the outer circumference of the upper surface. The side surface of the locking / unlocking gear 235 has a slope facing diagonally upward from the periphery of the upper surface to the periphery of the lower surface. The side surface of the locking / unlocking gear 235 is called the side slope. Multiple teeth are formed on the side slope of the locking / unlocking gear 235. The multiple teeth are formed so as to surround the outer periphery of the locking / unlocking gear 235. The multiple teeth formed on the side slope of the locking / unlocking gear 235 have the same pitch as the multiple teeth formed on the side slope of the transmission gear 26. The multiple teeth formed on the side slope of the locking / unlocking gear 235 mesh with the multiple teeth formed on the side slope of the transmission gear 26. When the transmission gear 26 rotates, the chuck cylinder 231 on which the locking / unlocking gear 235 is formed and the adapter 237 rotate around the cylindrical axis of the chuck mechanism 23. When the knob 233 is rotated, the chuck cylinder 231 on which the locking / unlocking gear 235 is formed and the adapter 237 rotate around the cylindrical axis of the chuck mechanism 23.

[0087] The adapter 237 has the same configuration as the adapter 137 of the first embodiment. The adapter 237 is fixed below the chuck cylinder 231. A hole is formed in the upper part of the adapter 237 to accommodate the lower part of the transmission rod 252 of the clutch mechanism 25. A groove is formed in the lower part of the adapter 237 to be engaged with the knob of a thumb turn provided on the door. As the adapter 237 rotates, the knob (not shown) engaged with the groove rotates. As a result, the thumb turn (key) provided on the door is unlocked / locked.

[0088] The follower 251 has the same configuration as the follower 151 of the first embodiment. The follower 251 is a circular plate-shaped member. The follower 251 is disposed in the upper cylindrical portion of the chuck cylinder 231. A transmission rod 252 is connected to the lower surface of the follower 251. A cam 232 is disposed on the upper surface of the follower 251. The follower 251 moves up and down in the upper cylindrical portion of the chuck cylinder 231 in accordance with the movement of the cam 232.

[0089] The transmission rod 252 has the same configuration as the transmission rod 152 of the first embodiment. The transmission rod 252 is a cylindrical rod-shaped member. The transmission rod 252 is housed inside the vertical through-hole of the chuck cylinder 231. The upper end of the transmission rod 252 is connected to the lower surface of the follower 251. The lower part of the transmission rod 252 extends to the inside of the upper hole of the adapter 237. A beam 253 is connected to the side of the transmission rod 252 via a horizontal through-hole opened in the side of the chuck cylinder 231. The cross section of the transmission rod 252 need not be circular, but may be elliptical or polygonal.

[0090] The beam 253 has the same configuration as the beam 153 of the first embodiment. The beam 253 is a rod-like member having a rectangular prism shape. A first end of the beam 253 is connected to a side surface of the transmission rod 252. The beam 253 extends to below the drive gear 22 through a horizontal through-hole formed in the side surface of the chuck cylinder 231. A clutch 255 is disposed above a second end of the beam 253 located below the drive gear 22. The beam 253 moves up and down in response to the up and down movement of the follower 251.

[0091] The clutch 255 is a bevel gear. 25 The clutch 255 is fixed to the upper surface of the beam 253 by the rotation shaft S 25 The clutch 255 moves up and down in conjunction with the up and down movement of the follower 251.

[0092] The radius of the circle of the upper surface of clutch 255 is smaller than the radius of the circle of the lower surface. The side surface of clutch 255 has a slope that faces diagonally upward from the periphery of the upper surface to the periphery of the lower surface. The side surface of clutch 255 is called the side slope. A plurality of teeth is formed on the side slope of clutch 255. The plurality of teeth is formed so as to surround the outer periphery of clutch 255. The plurality of teeth formed on the side slope of clutch 255 has the same pitch as the plurality of teeth formed on the side slope of drive gear 22 and transmission gear 26.

[0093] When the clutch mechanism 25 is in the uppermost position, the clutch 255 is disposed between the drive gear 22 and the transmission gear 26. The operating mode in this state is the automatic mode. In this state, the rotation plane of the clutch 255 is set in the same horizontal plane as the rotation planes of the locking / unlocking gear 235, the drive gear 22, and the transmission gear 26. In this state, a plurality of teeth formed on the side slope of the locking / unlocking gear 235 mesh with a plurality of teeth formed on the side slope of the drive gear 22 and the transmission gear 26.

[0094] When the clutch mechanism 25 moves downward, the clutch 255 moves downward. The operating mode when the clutch mechanism 25 is at the bottom is the manual mode. In this state, the rotation plane of the clutch 255 moves in a horizontal plane different from the rotation planes of the locking / unlocking gear 235, the drive gear 22, and the transmission gear 26. In this state, the multiple teeth formed on the side slope of the locking / unlocking gear 235 mesh with the multiple teeth formed on the transmission gear 26. The multiple teeth formed on the transmission gear 26 do not mesh with the multiple teeth formed on the side slope of the drive gear 22.

[0095] The transmission gear 26 is a bevel gear. The center of the transmission gear 26 is a rotation axis S 26 The transmission gear 26 has a rotation axis S passing through its center. 26 Rotation axis S 26 is rotatably connected to the upper plate 201 of the main body 200. The rotation plane of the transmission gear 26 is set on the same horizontal plane as the rotation planes of the drive gear 22 and the locking / unlocking gear 235.

[0096] The radius of the circle on the lower surface of the transmission gear 26 is smaller than the radius of the circle on the upper surface. The side surface of the transmission gear 26 has a slope that faces diagonally downward from the periphery of the upper surface to the periphery of the lower surface. The side surface of the transmission gear 26 is called the side slope. A plurality of teeth is formed on the side slope of the transmission gear 26. The plurality of teeth is formed so as to surround the outer periphery of the transmission gear 26. The plurality of teeth formed on the side slope of the transmission gear 26 has the same pitch as the plurality of teeth formed on the side slope of the lock / unlock gear 235 and the clutch 255.

[0097] [Operation mode] Next, the operation modes of the smart lock device 20 will be described with reference to the drawings. Below, we will explain an operation mode (automatic mode) in which the clutch 255 is inserted between the drive gear 22 and the transmission gear 26, and an operation mode (manual mode) in which the clutch 255 is disengaged from between the drive gear 22 and the transmission gear 26. Below, we will omit the transition state between the automatic mode and the manual mode.

[0098] <Automatic mode> In the automatic mode (FIG. 18), the knob 233 is in a state of being laid on its side. The follower 251 is in a state in which the side surface of the cam 232 abuts against it. The follower 251 is positioned at the uppermost position. The clutch 255, which moves in conjunction with the movement of the follower 251, is also positioned at the uppermost position. In this state, the clutch 255 is inserted between the drive gear 22 and the transmission gear 26. When the clutch 255 is inserted between the drive gear 22 and the transmission gear 26, the teeth of the drive gear 22 and the transmission gear 26 mesh with the teeth of the clutch 255.

[0099] Fig. 20 is a conceptual diagram for explaining an example of power transmission in a smart lock device according to the present disclosure, showing an example of the flow of power transmission in the smart lock device.

[0100] The motor 21 is driven in response to a signal that instructs unlocking or locking in response to the proximity of a smartphone or IC card used by a user. The motor 21 rotates around a rotation axis S in opposite directions for unlocking and locking. 21 Rotate the axis of rotation S21 The drive gear 22 rotates in response to the rotation of the drive gear 22, and the clutch 255 rotates in response to the rotation of the drive gear 22. The transmission gear 26 rotates in response to the rotation of the clutch 255. The locking / unlocking gear 235 rotates in response to the rotation of the transmission gear 26. The chuck cylinder 231 and the adapter 237 rotate in response to the rotation of the locking / unlocking gear 235. The thumbturn knob (not shown) rotates in response to the rotation of the adapter 237. The key is locked or unlocked in response to the rotation of the thumbturn knob.

[0101] <Manual mode> In the manual mode (FIG. 19) operation mode, the knob 233 is in a pulled-up state. The follower 251 is in a state in which the second end of the cam 232 abuts against it. The follower 251 is in the lowest position. The clutch 255, which moves in conjunction with the movement of the follower 251, is also in the lowest position. In this state, the clutch 255 is disengaged from between the drive gear 22 and the transmission gear 26. When the clutch 255 is disengaged from between the drive gear 22 and the transmission gear 26, the teeth of the drive gear 22 and the transmission gear 26 do not mesh with the teeth of the clutch 255.

[0102] Fig. 21 is a conceptual diagram for explaining an example of power transmission in a smart lock device according to the present disclosure. Fig. 21 shows an example of the flow of power transmission in the smart lock device.

[0103] The chuck cylinder 231 and the adapter 237 rotate in response to the rotation of the knob 233. The thumb turn knob (not shown) rotates in response to the rotation of the adapter 237, and the key is locked or unlocked.

[0104] Furthermore, the locking / unlocking gear 235 rotates due to the rotation of the chuck cylinder 231 in response to the rotation of the knob 233. In response to the rotation of the locking / unlocking gear 235, the transmission gear 26 rotates idle.

[0105] As described above, the smart lock device of this embodiment includes a motor, a drive gear, a chuck mechanism, a clutch mechanism, and a transmission gear. The drive gear is attached to the rotation shaft of the motor. The chuck mechanism includes a chuck cylinder, a cam, a knob, a locking / unlocking gear, and an adapter. The chuck cylinder is fixed to the upper part of the adapter. The knob is integrated with the cam. The knob is rotatably connected to the upper part of the chuck cylinder. The locking / unlocking gear is formed along the outer periphery of the chuck cylinder. The adapter is attached to the key to be locked / unlocked. The clutch mechanism includes a follower, a transmission rod, a beam, and a clutch. The follower is disposed on the upper part of the chuck cylinder. The follower abuts against the lower part of the cam. The transmission rod is disposed on the rotation shaft of the chuck cylinder. The transmission rod supports the follower. The beam extends in a direction perpendicular to the transmission rod. A clutch is disposed on the upper surface of the beam. The clutch is disposed in the power transmission path between the drive gear and the transmission gear. The clutch is a gear that meshes with the drive gear and the transmission gear. The clutch mechanism is configured so that the height of the clutch lowers in conjunction with the movement of the knob. The transmission gear is located in the power transmission path between the drive gear and the locking / unlocking gear. The rotation axis of the motor is parallel to the rotation axes of the adapter and the chuck cylinder.

[0106] In this embodiment, when the knob is in a horizontal position, a clutch intervenes in the power transmission path, transmitting the driving force of the motor to the adapter. In this state, the target key is automatically locked or unlocked. On the other hand, when the knob is raised, the clutch disengages from the power transmission path, transmitting the power applied to the knob to the adapter. In this state, the target key is manually locked or unlocked. According to this embodiment, the power transmission path can be switched without using electrical power in response to the operation applied to the knob. Furthermore, in this embodiment, the rotation axis of the motor is parallel to the rotation axes of the adapter and the chuck cylinder. Therefore, according to this embodiment, the inter-axis distance does not vary depending on the gear connection, thereby maintaining high transmission efficiency. The configuration of this embodiment simplifies the configuration of the drive gear compared to the configuration of the first embodiment, thereby improving the component life.

[0107] In one aspect of this embodiment, the drive gear, the clutch, the transmission gear, and the lock / unlock gear are bevel gears. According to this aspect, since the clutch is a bevel gear, it is easy to move the clutch in and out between the drive gear and the transmission gear.

[0108] (Third embodiment) Next, a smart lock device of a third embodiment will be described with reference to the drawings. The smart lock device of this embodiment has a configuration in which a control device that controls the drive of the motor is added to the smart lock devices of the first and second embodiments. In the following, descriptions of the configuration, functions, operations, etc. that are the same as those of the first and second embodiments will be omitted.

[0109] (composition) FIG. 22 is a block diagram showing an example of the configuration of a smart lock device according to the present disclosure. FIG. 22 shows an example of the functional configuration of a smart lock device. The smart lock device 30 includes a motor 31, a drive gear 32, a chuck mechanism 33, a clutch mechanism 35, a transmission gear 36, and a control device 37. An adapter (not shown) of the chuck mechanism 33 is attached to the key 300 to be locked or unlocked. For example, the adapter of the chuck mechanism 33 is configured to engage with the knob of a thumb turn installed on the door. For security reasons, the smart lock device 30 is attached to the interior side of the door.

[0110] The motor 31, drive gear 32, chuck mechanism 33, clutch mechanism 35, and transmission gear 36 are similar to the corresponding configurations of the smart lock devices of the first and second embodiments. In the following, explanations of the motor 31, drive gear 32, chuck mechanism 33, clutch mechanism 35, and transmission gear 36 will be omitted, and only the control device 37 will be explained.

[0111] [Control device] 23 is a block diagram showing an example of the configuration of a control device provided in a smart lock device according to the present disclosure. The control device 37 includes a communication unit 371, a storage unit 372, an authentication unit 373, and a drive unit 375. For example, the control device 37 is implemented by a dedicated microcomputer including a processor and memory. The control device 37 may also be implemented by an information processing device such as a computer or a server.

[0112] The communication unit 371 communicates with a communication terminal 380 used to lock and unlock the key to be locked and unlocked. The communication terminal 380 is a terminal device with a wireless communication function. For example, the communication terminal 380 is realized by a device such as a smartphone (Integrated Circuit) or a tablet. The communication terminal 380 may be a dedicated device for a smart lock system including the smart lock device 30. Alternatively, an IC card or the like may be used instead of the communication terminal 380.

[0113] The communication unit 371 receives authentication information from the communication terminal 380. The communication unit 371 sends the received authentication information to the authentication unit 373. The authentication information is not particularly limited as long as it can identify the user carrying the communication terminal 380. For example, the authentication information is information such as a personal identification number, a passphrase, a password, or a secret word. For example, the authentication information may be a specific pattern. For example, the authentication information may be biometric information such as fingerprint authentication, face authentication, iris authentication, or voiceprint authentication. For example, the authentication information may be identification information such as a media access control (MAC) address, an internet protocol (IP) address, or a subscriber identity module (SIM) card. For example, if the authentication information is hashed, the communication unit 371 receives a hash value generated using a specific hash function. The authentication information may be a combination of the above-mentioned pieces of information.

[0114] For example, the communication unit 371 communicates with the communication terminal 380 via a wireless communication function (not shown) conforming to standards such as Bluetooth (registered trademark) or WiFi (registered trademark). The communication function of the communication unit 371 may conform to standards other than Bluetooth (registered trademark) or WiFi (registered trademark).

[0115] The storage unit 372 stores predetermined authentication information. The storage unit 372 may be configured to store authentication information (hash value) hashed using a specific hash function. The authentication information and hash value stored in the storage unit 372 are used for authentication by the authentication unit 373.

[0116] The authentication unit 373 acquires authentication information from the communication unit 371. The authentication unit 373 determines whether the acquired authentication information matches or does not match the authentication information stored in the storage unit 372. If the authentication information is hashed, the authentication unit 373 determines whether the hash values ​​match or do not match. If the acquired information matches the information stored in the storage unit 372, the authentication unit 373 sends an instruction to drive the motor 31 to the drive unit 375. If the acquired information does not match the information stored in the storage unit 372, the authentication unit 373 does not send an instruction to drive the motor 31 to the drive unit 375. For example, the authentication unit 373 may be configured to send an instruction to drive the motor 31 to the drive unit 375 depending on whether the acquired information and the information stored in the storage unit 372 satisfy a specific condition. For example, if the authentication information does not match, the authentication unit 373 may be configured to send an instruction to the communication unit 371 to notify users or administrators of the smart lock system that there is a possibility of trespassing.

[0117] The drive unit 375 outputs a lock instruction or an unlock instruction to the motor 31 in response to an instruction from the authentication unit. In response to a lock instruction, the drive unit 375 rotates the motor 31 in a rotation direction that locks the door. In response to an unlock instruction, the drive unit 375 rotates the motor 31 in a rotation direction that unlocks the door. In the case of an auto-lock, the door remains locked except at the timing of unlocking. Therefore, in the case of an auto-lock, the smart lock device 30 may be configured to output only an unlock instruction. Note that even in the case of an auto-lock, the smart lock device 30 may be configured to output a lock instruction.

[0118] The functions of the storage unit 372 and the authentication unit 373 may be implemented in a server or a cloud. In this case, the communication unit 371 may be configured to transmit the received authentication information to a computer, server, or cloud in which the functions of the storage unit 372 and the authentication unit 373 are implemented, via a communication network such as the Internet or an intranet. In this case, the communication unit 371 is configured to connect to the communication network.

[0119] (operation) Next, the operation of the smart lock device 30 in this embodiment will be described with reference to the drawings. Fig. 24 is a flowchart for explaining an example of the operation of the smart lock device in the present disclosure. In the following explanation, the components of the smart lock device 30 will be considered as the subject of operation. The subject of operation of the processing according to the flowchart in Fig. 24 may be the smart lock device.

[0120] In FIG. 24, first, the communication unit 371 receives a signal including authentication information (step S31).

[0121] Next, the authentication unit 373 compares the authentication information stored in the storage unit 372 with the authentication information included in the received signal (step S32).

[0122] If the authentication information stored in the memory unit 372 matches the authentication information included in the received signal (Yes in step S33), the authentication unit 373 sends an instruction to drive the motor 31 to the drive unit 375 (step S34). On the other hand, if the authentication information stored in the memory unit 372 does not match the authentication information included in the received signal (No in step S33), the authentication unit 373 does not send an instruction to drive the motor 31 to the drive unit 375.

[0123] After step S34, the driving unit 375 drives the motor 31 by outputting a locking instruction or an unlocking instruction to the motor 31 (step S35).

[0124] As described above, the smart lock device of this embodiment has a configuration in which a control device is added to the smart lock device of the first or second embodiment. The control device controls the drive of the motor to lock or unlock the key to be locked or unlocked in response to receiving predetermined authentication information. The predetermined authentication information includes information used to lock and unlock the key to be locked or unlocked. For example, the control device controls the drive of the motor in response to the proximity of a communication terminal carried by a user. For example, if the authentication information transmitted from the communication terminal matches pre-registered authentication information, the control device sends a locking instruction or an unlocking instruction to the motor. According to this aspect, the key to be locked or unlocked can be automatically locked or unlocked in response to the proximity of a user carrying a communication terminal that transmits the predetermined authentication information.

[0125] (Fourth embodiment) Next, a smart lock device according to a fourth embodiment will be described with reference to the drawings. The smart lock device according to this embodiment has a simplified configuration of the smart lock devices according to the first and second embodiments. For example, the functions of the components of the smart lock device according to this embodiment are realized by the functions of the components of the smart lock devices according to the first and second embodiments.

[0126] 25 and 26 are conceptual diagrams showing an example of the configuration of a smart lock device according to the present disclosure. 25 and 26 are cross-sectional views of the smart lock device cut along the extension direction of the beam of the clutch mechanism. 25 shows an example in which the power transmission operation mode is automatic. 26 shows an example in which the power transmission operation mode is manual.

[0127] The smart lock device 40 includes a motor 41, a drive gear 42, a chuck mechanism 43, a clutch mechanism 45, and a transmission gear 46. The drive gear 42 is attached to the rotating shaft of the motor 41. The chuck mechanism 43 includes a chuck cylinder 431, a cam 432, a knob 433, a locking / unlocking gear 435, and an adapter 437. The chuck cylinder 431 is fixed to the top of the adapter 437. The knob 433 is integrated with the cam 432. The knob 433 is rotatably connected to the top of the chuck cylinder 431. The locking / unlocking gear 435 is formed along the outer periphery of the chuck cylinder 431. The adapter 437 is attached to the key to be locked / unlocked. The clutch mechanism 45 includes a follower 451 and a clutch 455. The follower 451 is disposed on the top of the chuck cylinder 431. The follower 451 abuts against the lower part of the cam 432. The clutch 455 is disposed in the power transmission path between the drive gear and the transmission gear. The transmission gear 46 is disposed in the power transmission path between the drive gear and the locking / unlocking gear. The rotation axis of the motor 41 is parallel to the rotation axes of the adapter 437 and the chuck cylinder 431.

[0128] When knob 433 is in a sideways position, clutch 455 intervenes in the power transmission in the power transmission path, and the driving force of motor 41 is transmitted to adapter 437 (FIG. 25). When knob 433 is in a raised position, clutch 455 is released from the power transmission in the power transmission path, and the power applied to knob 433 is transmitted to adapter 437 (FIG. 26).

[0129] In this embodiment, when the knob is in a sideways position, a clutch intervenes in the power transmission in the power transmission path, and the driving force of the motor is transmitted to the adapter. In this state, the target key is automatically locked or unlocked. On the other hand, when the knob is raised, the clutch is released from the power transmission in the power transmission path, and the power applied to the knob is transmitted to the adapter. In this state, the target key is manually locked or unlocked. According to this embodiment, the power transmission path can be switched without using electric power, depending on the operation applied to the knob.

[0130] (Hardware) Next, a hardware configuration for executing the control and processing in the present disclosure will be described with reference to the drawings. Fig. 27 is a block diagram showing an example of a hardware configuration for executing the control and processing in the present disclosure. Here, an information processing device 90 (computer) is shown as an example of the hardware configuration. The information processing device in Fig. 27 is an example of a configuration for executing the control and processing in the present disclosure and does not limit the scope of the present disclosure.

[0131] 27, an information processing device 90 includes a processor 91, a memory 92, an auxiliary storage device 93, an input / output interface 95, and a communication interface 96. In FIG. 27, interface is abbreviated as I / F (Interface). The information processing device 90 may include a plurality of at least any of the processor 91, memory 92, auxiliary storage device 93, input / output interface 95, and communication interface 96. The processor 91, memory 92, auxiliary storage device 93, input / output interface 95, and communication interface 96 are connected to each other via a bus 98 so as to be able to communicate data with each other. Furthermore, the processor 91, memory 92, auxiliary storage device 93, and input / output interface 95 are connected to a network such as the Internet or an intranet via the communication interface 96.

[0132] The processor 91 loads a program (instructions) stored in an auxiliary storage device 93 or the like into the memory 92. For example, the program is a software program for executing the control and processing in the present disclosure. The processor 91 executes the program loaded into the memory 92. The processor 91 executes the program to execute the control and processing in the present disclosure. The processor 91 may be configured by a single piece of hardware or may be configured by multiple pieces of hardware.

[0133] The memory 92 is a storage device having an area in which a program is loaded. The processor 91 loads a program stored in an auxiliary storage device 93 or the like into the memory 92. The memory 92 is realized by a volatile memory such as a DRAM (Dynamic Random Access Memory). Alternatively, a non-volatile memory such as an MRAM (Magnetoresistive Random Access Memory) may be used as the memory 92. The memory 92 may be configured by a single piece of hardware or by multiple pieces of hardware.

[0134] The auxiliary storage device 93 stores various data such as programs. For example, the auxiliary storage device 93 is realized by a local disk such as a hard disk or flash memory. The auxiliary storage device 93 may be configured by a single piece of hardware or by multiple pieces of hardware. The auxiliary storage device 93 may also be configured as external hardware. It is also possible to configure the system so that various data is stored in the memory 92, and omit the auxiliary storage device 93.

[0135] The input / output interface 95 is an interface for connecting the information processing device 90 to peripheral devices based on standards and specifications. The communication interface 96 is an interface for connecting to external systems and devices via a network such as the Internet or an intranet based on standards and specifications. The input / output interface 95 may be configured by a single piece of hardware, or may be configured by multiple pieces of hardware. The input / output interface 95 and the communication interface 96 may be a common interface for connecting to external devices.

[0136] Input devices such as a keyboard, mouse, and touch panel may be connected to the information processing device 90 as needed. These input devices are used to input information and settings. When a touch panel is used as the input device, a screen having the function of the touch panel serves as the interface. The processor 91 and the input devices are connected via an input / output interface 95.

[0137] The information processing device 90 may be equipped with a display device for displaying information. When a display device is equipped, the information processing device 90 is equipped with a display control device (not shown) for controlling the display of the display device. The information processing device 90 and the display device are connected via an input / output interface 95.

[0138] The information processing device 90 may be equipped with a drive device. The drive device acts as an intermediary between the processor 91 and a recording medium (program recording medium) to read data and programs stored on the recording medium and to write processing results of the information processing device 90 to the recording medium. The information processing device 90 and the drive device are connected via an input / output interface 95.

[0139] The above is an example of a hardware configuration for enabling the control and processing in the present disclosure. The hardware configuration in Fig. 27 is an example of a hardware configuration for executing the control and processing in the present disclosure, and does not limit the scope of the present disclosure. A program that causes a computer to execute the control and processing in the present disclosure is also included in the scope of the present disclosure.

[0140] A program recording medium on which a program for executing the processing in this embodiment is recorded is also included in the scope of the present invention. For example, the program recording medium is a computer-readable non-transitory recording medium. The recording medium can be realized as an optical recording medium such as a CD (Compact Disc) or a DVD (Digital Versatile Disc). The recording medium may also be realized as a semiconductor recording medium such as a USB (Universal Serial Bus) memory or an SD (Secure Digital) card. The recording medium may also be realized as a magnetic recording medium such as a flexible disk or other recording medium.

[0141] The components in the present disclosure may be combined in any manner. The components in the present disclosure may be realized by software. The components in the present disclosure may be realized by circuits.

[0142] Although the present disclosure has been described above with reference to the embodiments, the present disclosure is not limited to the above-described embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present disclosure within the scope of the present disclosure. Furthermore, each embodiment can be combined with other embodiments as appropriate.

[0143] A part or all of the above-described embodiments can be described as, but not limited to, the following supplementary notes. (Appendix 1) A motor; a drive gear attached to the rotary shaft of the motor; a chuck mechanism including an adapter attached to a key to be locked and unlocked, a chuck cylinder fixed to the top of the adapter, a locking / unlocking gear formed along the outer periphery of the chuck cylinder, and a knob integrated with a cam and rotatably connected to the top of the chuck cylinder; a transmission gear disposed in a power transmission path between the drive gear and the locking / unlocking gear; a clutch mechanism including a follower that is disposed in an upper portion of the chuck cylinder and abuts against a lower portion of the cam, and a clutch that switches power transmission between the drive gear and the transmission gear, a rotation axis of the motor is parallel to a rotation axis of the adapter and a rotation axis of the chuck cylinder; When the knob is in a sideways position, the clutch intervenes in the power transmission path to transmit the driving force of the motor to the adapter, A smart lock device configured such that when the knob is raised, the clutch is released from power transmission in the power transmission path, and the power applied to the knob is transmitted to the adapter. (Appendix 2) The clutch mechanism includes: a transmission rod disposed on the rotation shaft of the chuck cylinder and supporting the follower; a beam extending in a direction perpendicular to the transmission rod and having the clutch disposed on an upper surface thereof; A smart lock device as described in Appendix 1, configured so that the height of the clutch is lowered in conjunction with the movement of pulling up the knob. (Appendix 3) A smart lock device as described in Appendix 2, wherein when the knob is raised, the adapter rotates in response to the rotation of the knob around the rotation axis of the chuck cylinder. (Appendix 4) The drive gear is a sun gear attached to a rotary shaft of the motor; a carrier rotatably connected to a lower portion of the rotary shaft of the motor, the carrier having a plurality of rotary shafts installed on an upper surface thereof around the rotary shaft of the motor; a plurality of planetary gears connected to a plurality of rotary shafts installed on the upper surface of the carrier, respectively, and meshing with the sun gear; A smart lock device as described in Appendix 3, which is composed of a planetary gear mechanism having an annular internal and external gear that meshes with the plurality of planetary gears on its inner surface and meshes with the transmission gear on its outer surface. (Appendix 5) The clutch is When the knob is in a sideways position, the knob is connected to the carrier to restrict rotation of the carrier, A smart lock device as described in Appendix 4, configured such that when the knob is raised, it separates from the carrier, releasing the restraint of the carrier. (Appendix 6) A smart lock device as described in Appendix 2, wherein the clutch is a gear that meshes with the drive gear and the transmission gear. (Appendix 7) A smart lock device as described in Appendix 6, wherein the drive gear, the clutch, the transmission gear, and the locking / unlocking gear are bevel gears. (Appendix 8) A smart lock device according to any one of claims 2 to 7, wherein an elastic member is arranged on the upper surface of the follower to bias the knob sideways. (Appendix 9) A smart lock device described in any one of Appendices 2 to 7, wherein an elastic member is arranged below the transmission rod to urge the transmission rod toward the cam. (Appendix 10) A smart lock device described in any one of Appendices 1 to 7, which is equipped with a control device that controls the drive of the motor to lock or unlock the key to be locked or unlocked in response to receiving specified authentication information. [Explanation of symbols]

[0144] 10, 20, 30, 40 Smart Lock Device 11, 21, 31, 41 motors 12 Planetary gear mechanism 13, 23, 33, 43 Chuck mechanism 15, 25, 35, 45 Clutch mechanism 16, 26, 36, 46 Transmission gear 22, 32, 42 Drive gear 100, 200 main unit 101, 201 Upper board 102, 202 lower plate 103, 203 Side panels 121 Sun Gear 122 Planetary gear 125 Internal and external gears 127 Career 131, 231, 431 Chuck cylinder 132, 232, 432 Cam 133, 233, 433 knobs 135, 235, 435 Locking / Unlocking Gear 137, 237, 437 adapters 151, 251, 451 followers 152, 252 Transmission rod 153, 253 beam 155, 255, 455 clutch 171, 172 Elastic member

Claims

1. A motor; a drive gear attached to the rotary shaft of the motor; a chuck mechanism including an adapter attached to a key to be locked and unlocked, a chuck cylinder fixed to the top of the adapter, a locking / unlocking gear formed along the outer periphery of the chuck cylinder, and a knob integrated with a cam and rotatably connected to the top of the chuck cylinder; a transmission gear disposed in a power transmission path between the drive gear and the locking / unlocking gear; a clutch mechanism including a follower that is disposed in an upper portion of the chuck cylinder and abuts against a lower portion of the cam, and a clutch that switches power transmission between the drive gear and the transmission gear, a rotation axis of the motor is parallel to a rotation axis of the adapter and a rotation axis of the chuck cylinder; When the knob is in a sideways position, the clutch intervenes in the power transmission path to transmit the driving force of the motor to the adapter, A smart lock device configured such that when the knob is raised, the clutch is released from power transmission in the power transmission path, and the power applied to the knob is transmitted to the adapter.

2. The clutch mechanism includes: a transmission rod disposed on the rotation shaft of the chuck cylinder and supporting the follower; a beam extending in a direction perpendicular to the transmission rod and having the clutch disposed on an upper surface thereof; The smart lock device according to claim 1 , wherein the height of the clutch is lowered in conjunction with the movement of pulling up the knob.

3. The smart lock device according to claim 2 , wherein when the knob is raised, the adapter rotates in response to rotation of the knob about the rotation axis of the chuck cylinder.

4. The drive gear is a sun gear attached to a rotary shaft of the motor; a carrier rotatably connected to a lower portion of the rotary shaft of the motor, the carrier having a plurality of rotary shafts installed on an upper surface thereof around the rotary shaft of the motor; a plurality of planetary gears connected to a plurality of rotary shafts installed on the upper surface of the carrier, respectively, and meshing with the sun gear; The smart lock device according to claim 3, which is configured by a planetary gear mechanism having an annular internal and external gear that meshes with the plurality of planetary gears on its inner surface and meshes with the transmission gear on its outer surface.

5. The clutch is When the knob is in a sideways position, the knob is connected to the carrier to restrict rotation of the carrier, The smart lock device according to claim 4 , wherein the knob is configured to separate from the carrier when raised, thereby releasing the restraint of the carrier.

6. The smart lock device according to claim 2 , wherein the clutch is a gear that meshes with the drive gear and the transmission gear.

7. The smart lock device according to claim 6 , wherein the drive gear, the clutch, the transmission gear, and the lock / unlock gear are bevel gears.

8. The smart lock device according to claim 2 , wherein an elastic member is disposed on an upper surface of the follower to bias the knob sideways.

9. The smart lock device according to claim 2 , wherein an elastic member is disposed below the transmission rod to bias the transmission rod toward the cam.

10. A smart lock device according to any one of claims 1 to 7, further comprising a control device that controls the drive of the motor to lock or unlock the key to be locked or unlocked in response to receipt of predetermined authentication information.

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