JP7731095B1 - Locking device - Google Patents

Abstract

[Problem] It can be used as both a smart lock system and a cylinder lock.
[Solution] The locking device includes an inner cylinder 20 and an outer cylinder 30, and a cylinder lock section 11 configured so that rotation of the inner cylinder 20 relative to the outer cylinder 30 is permitted only when a compatible key is inserted into the inner cylinder 20, and an electronic lock section 12 having a rotor 50 located at the tip of the inner cylinder 20 and supported rotatably about the axis of the inner cylinder 20, and a locking piece 60 connected to the rotor 50 and configured to be driven to rotate by a motor so that it can be locked to an object. The locking device is configured so that when a key is not inserted into the inner cylinder 20, rotation of the rotor 50 relative to the inner cylinder 20 is permitted, but when a compatible key is inserted into the inner cylinder 20, the rotor 50 engages with the inner cylinder 20 via the key, causing the rotor 50 to rotate integrally with the inner cylinder 20.
[Selected Figure] Figure 3

Description

The present invention relates to a locking device.

Conventional electronic locking devices include smart lock systems that use authentication tools such as smartphones or IC cards to lock and unlock doors (see, for example, Patent Document 1). Smart lock systems are configured so that when authentication is performed using the authentication tool, a motor is driven to change the position of the locking piece between a locked position and an unlocked position.

Another conventional mechanical locking device is the cylinder lock. A cylinder lock has an inner cylinder and an outer cylinder. A cylinder lock allows the inner cylinder to rotate relative to the outer cylinder only when a matching key is inserted into the inner cylinder, and is configured so that the position of a locking piece connected to the inner cylinder can be changed between a locked position and an unlocked position by rotating the key.

Utility Model Registration No. 3212775

There is a need for a locking device that can be used as both a smart lock system and a cylinder lock.

Various aspects of the locking device for solving the above problems will be described below.
[Aspect 1]
a cylinder lock unit including an inner cylinder and an outer cylinder, the cylinder lock unit being configured such that rotation of the inner cylinder relative to the outer cylinder is permitted only when a matching key is inserted into the inner cylinder;
an electronic lock unit including a rotor located at the tip end of the inner cylinder and supported rotatably around the axis of the inner cylinder, and a locking piece connected to the rotor and configured to be able to lock onto an object by being rotated by a motor;
When the key is not inserted into the inner cylinder, the rotating body is allowed to rotate relative to the inner cylinder, while when a compatible key is inserted into the inner cylinder, the rotating body engages with the inner cylinder via the key, causing the rotating body to rotate integrally with the inner cylinder.
Locking device.

With this configuration, when a key is not inserted into the inner cylinder, the rotating body is allowed to rotate relative to the inner cylinder. This allows the motor to rotate the rotating body, allowing locking and unlocking operations to be performed on the target object.

On the other hand, when a compatible key is inserted into the inner cylinder, the rotating body engages with the inner cylinder via the key, causing the rotating body to rotate integrally with the inner cylinder. This allows the locking piece to be rotated by turning the key, thereby locking and unlocking the object. Therefore, it can be used as both a smart lock system and a cylinder lock.

In addition, electronic authentication methods for driving the motor can be appropriately applied, such as an IC card, a dedicated remote control, a smartphone, a PIN number using a built-in touch panel, fingerprint authentication using a built-in fingerprint sensor, or biometric authentication using a built-in camera.

[Aspect 2]
the rotor is cylindrical and rotatably supported by an outer peripheral surface of a tip end of the inner cylinder,
The tip portion is provided with a through hole that allows an edge of the key to protrude from an outer peripheral surface of the tip portion,
An engagement portion with which an edge of the key engages is provided on the inner peripheral surface of the rotating body.
2. The locking device of claim 1.

With this configuration, the cylindrical rotating body is rotatably supported on the outer peripheral surface of the tip of the inner cylinder, allowing the rotating body to be supported rotatably around the axis of the inner cylinder. Furthermore, the tip is provided with a through-hole that allows the edge of the key to protrude from the outer peripheral surface of the tip, allowing the edge of the key to engage with an engagement portion provided on the inner peripheral surface of the rotating body. This allows the rotating body to engage with the inner cylinder via the key when a compatible key is inserted into the inner cylinder.

[Aspect 3]
the locking piece has an insertion hole into which the rotating body is inserted,
a rotation stopper portion that prevents rotation of the locking piece relative to the rotating body is provided on an inner peripheral surface of the insertion hole and an outer peripheral surface of the rotating body,
The locking device according to aspect 1 or aspect 2.

With this configuration, the rotation of the locking piece relative to the rotor is prevented by inserting and attaching the rotor into the locking piece insertion hole while aligning the rotation stoppers provided on the inner circumferential surface of the locking piece insertion hole and the outer circumferential surface of the rotor. This makes it easy to connect the locking piece to the rotor.

The present invention can be used as both a smart lock system and a cylinder lock.

FIG. 1 is a perspective view of a locking device according to one embodiment, as viewed from the base end side. FIG. 2 is a perspective view of a locking device according to one embodiment, as viewed from the tip end side. FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. FIG. 4 is a perspective view of the locking device with the trim member and the nut removed. FIG. 5 is a perspective view of the inner cylinder and the rotor. FIG. 6 is a cross-sectional view of the inner cylinder and the rotor. FIG. 7 is a cross-sectional view of the inner cylinder and the rotor with the key inserted. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG.

An embodiment will be described below with reference to FIGS.
As shown in Figures 1 and 2, the locking device is applied to a door system that opens and closes an opening in a house, for example, and includes a device main body 10 that can be attached to the periphery of a door or opening, and a key 90 that operates the device main body 10.

As shown in FIG. 3, the device main body 10 includes a cylinder lock unit 11 and an electronic lock unit 12 .
<Cylinder lock section>
3, the cylinder locking portion 11 includes an inner cylinder 20, an outer cylinder 30, a cover member 40, and a trim member 80. The cylinder locking portion 11 of this embodiment is a so-called disk cylinder.

(inner cylinder)
As shown in FIGS. 3, 5, and 6, the inner cylinder 20 has, in order from the base end side (the left side in FIGS. 3, 4, and 5), a base end portion 21, a main body portion 22, and a tip end portion 24.

The base end portion 21, the main body portion 22, and the tip end portion 24 all have outer circumferential surfaces that are circular in cross section.
The outer diameter of the base end portion 21 is larger than the outer diameter of the main body portion 22. A step is provided between the outer peripheral surface of the base end portion 21 and the outer peripheral surface of the main body portion 22.

As shown in Figures 1 to 4, a lid member 40 is attached to the base end portion 21, covering the base end surface of the base end portion 21. The lid member 40 has a communication hole 41 that communicates with the keyhole, which is the internal space of the inner tube 20.

The main body 22 is provided with multiple slide holes 23 that penetrate the main body 22 in the radial direction of the inner tube 20. Well-known disc tumblers (not shown) are provided in the slide holes 23 so that they can slide in the radial direction of the inner tube 20.

As shown in FIGS. 6 and 7, the distal end portion 24 has, in order from the proximal end side, a first portion 25 and a second portion 28.
The outer diameter of the first portion 25 is smaller than the outer diameter of the main body portion 22. A step is provided between the outer peripheral surface of the main body portion 22 and the outer peripheral surface of the first portion 25.

The outer diameter of the second portion 28 is smaller than the outer diameter of the first portion 25. A step is provided between the outer peripheral surface of the first portion 25 and the outer peripheral surface of the second portion 28.
As shown in FIGS. 6 to 8, the first portion 25 is provided with a through hole 26 and a receiving hole 27 .

The receiving hole 27 communicates with the internal space of the main body 22 and has a shape that allows the tip of the key 90 to be received therein.
The through-hole 26 penetrates the first portion 25 in the radial direction of the inner cylinder 20. That is, the through-hole 26 communicates with the receiving hole 27. The through-hole 26 is configured to allow the edge of the key 90 to protrude from the outer peripheral surface of the tip portion 24 of the inner cylinder 20.

The second portion 28 is provided with an internally threaded hole 29 (see FIG. 3).
(Outer cylinder)
As shown in FIG. 3, the outer cylinder 30 accommodates the inner cylinder 20 and supports the inner cylinder 20 rotatably.

As shown in FIGS. 3 and 4, the outer cylinder 30 has, in order from the base end side, a base end portion 31, a main body portion 32, and a tip end portion 35.
The base end portion 31 has an outer circumferential surface whose outer diameter decreases toward the base end.

As shown in FIGS. 1 to 3, a trim member 80 is attached to the base end portion 31 so as to cover the outer peripheral surface of the base end portion 31 .
As shown in FIG. 3, the inner peripheral surface of the main body 32 is provided with an accommodating recess 33 capable of accommodating the outer peripheral portion of the disk tumbler.

3 and 4, a male thread 34 is provided on the outer circumferential surface of the main body 32. A nut 81 is threadedly engaged with the male thread 34.
As shown in FIGS. 1 to 3, the device body 10 is attached to the peripheral edge of the door or opening (not shown) by clamping the peripheral edge of the door or opening between the base end 31 of the outer cylinder 30 and the nut 81.

The cylinder lock unit 11 is configured so that rotation of the inner cylinder 20 relative to the outer cylinder 30 is permitted only when a compatible key 90 is inserted into the inner cylinder 20. Specifically, when a compatible key 90 is inserted into the inner cylinder 20, the outer peripheral edge (not shown) of the disc tumbler is positioned at the shear line, which is the boundary between the outer peripheral surface of the inner cylinder 20 and the inner peripheral surface of the outer cylinder 30, thereby permitting rotation of the inner cylinder 20 relative to the outer cylinder 30.

<Electronic lock unit 12>
As shown in FIGS. 3 and 5 to 8 , the electronic locking unit 12 has a rotating body 50 and a locking piece 60 .

(rotating body)
The rotating body 50 is located on the tip side of the inner cylinder 20 and is supported rotatably about the axis of the inner cylinder 20. The rotating body 50 is cylindrical and is rotatably supported by the outer peripheral surface of the tip portion 24 of the inner cylinder 20.

The portion of the inner circumferential surface of the rotor 50 that is rotatably supported by the outer circumferential surface of the first portion 25 of the tip end portion 24 has a circular cross section.
An engagement portion 51 with which the edge of the key 90 engages is provided inside the rotating body 50. The engagement portion 51 is concave. A plurality of engagement portions 51 are provided so that the edge of the key 90 can engage with the engagement portion 51 when a locking piece 60 (described later) is in both the locked position and the unlocked position. In this embodiment, four engagement portions 51 are provided at intervals from one another in the circumferential direction of the rotating body 50.

(Latching piece)
The locking piece 60 is connected to the rotating body 50 and is configured to be able to lock onto an object by being rotated by a motor (not shown). Here, when the device main body 10 is attached to a door, the object is the periphery of the opening. Also, when the device main body 10 is attached to the periphery of an opening, the object is the door.

Electronic authentication methods for driving a motor include well-known methods such as authentication using a smartphone app or authentication using an authentication tool such as an IC card.

As shown in FIG. 3, the locking piece 60 has an insertion hole 61 into which the rotating body 50 is inserted.
The inner peripheral surface of the insertion hole 61 and the outer peripheral surface of the rotating body 50 are each provided with a rotation stopper portion that prevents the locking piece 60 from rotating relative to the rotating body 50 .

As shown in Figure 5, the outer peripheral surface of the tip end 52 of the rotating body 50 has a substantially square cross section. The insertion hole 61 also has a substantially square cross section. Each side of the outer peripheral surface of the tip end 52 of the rotating body 50 abuts each side of the inner peripheral surface of the insertion hole 61 of the locking piece 60, thereby preventing rotation of the locking piece 60 relative to the rotating body 50. In other words, each side of the outer peripheral surface of the tip end 52 of the rotating body 50 and each side of the inner peripheral surface of the insertion hole 61 of the locking piece 60 form a rotation stopper.

As shown in Figure 3, the tip 52 of the rotor 50 is inserted into the insertion hole 61 of the locking piece 60, and then a screw 73 is threaded into the female threaded hole 29 in the tip 24 of the inner tube 20, thereby attaching the locking piece 60 to the rotor 50. A spacer 70 is provided between the rotor 50 and the locking piece 60 in the axial direction of the rotor 50. A washer 72 is also provided between the screw 73 and the locking piece 60. The washer 72 is, for example, a locking washer.

This locking device is configured so that when the key 90 is not inserted into the inner cylinder 20, the rotating body 50 is allowed to rotate relative to the inner cylinder 20. On the other hand, when a compatible key 90 is inserted into the inner cylinder 20, the rotating body 50 engages with the inner cylinder 20 via the key 90, allowing the rotating body 50 to rotate integrally with the inner cylinder 20.

<Operation of this embodiment>
When the key 90 is not inserted into the inner cylinder 20, the rotating body 50 is allowed to rotate relative to the inner cylinder 20. This allows the rotating body 50 to be rotated by the motor to perform locking and unlocking operations on an object.

On the other hand, when a compatible key 90 is inserted into the inner cylinder 20, the rotating body 50 engages with the inner cylinder 20 via the key 90, causing the rotating body 50 to rotate integrally with the inner cylinder 20. As a result, by rotating the key 90, the locking piece 60 can be rotated to lock and unlock the object.

<Effects of this embodiment>
(1) Because it has the above-mentioned functions, it can be used as both a smart lock system and a cylinder lock.

(2) Because the cylindrical rotating body 50 is rotatably supported on the outer peripheral surface of the tip portion 24 of the inner tube 20, the rotating body 50 can be supported rotatably around the axis of the inner tube 20. Furthermore, the tip portion 24 is provided with a through-hole 26 that allows the edge of the key 90 to protrude from the outer peripheral surface of the tip portion 24, so that the edge of the key 90 can engage with the engaging portion 51 provided on the inner peripheral surface of the rotating body 50. As a result, when a compatible key 90 is inserted into the inner tube 20, the rotating body 50 can engage with the inner tube 20 via the key 90.

(3) By inserting and attaching the rotating body 50 into the insertion hole 61 of the locking piece 60 while aligning the rotation stoppers provided on the inner surface of the insertion hole 61 of the locking piece 60 and the outer surface of the rotating body 50, rotation of the locking piece 60 relative to the rotating body 50 is prevented. Therefore, the locking piece 60 can be easily connected to the rotating body 50.

<Example of change>
This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility.

- The electronic authentication method for driving the motor of the electronic lock unit 12 is not limited to authentication methods using a smartphone app or an IC card, but can also be authentication methods using a dedicated remote control, authentication methods using a PIN number entered on a built-in touch panel, fingerprint authentication using a built-in fingerprint sensor, biometric authentication using a built-in camera, etc., as appropriate.

- The manner in which the locking piece 60 is connected to the rotating body 50 is not limited to that exemplified in the above embodiment, and the locking piece 60 may be connected to the rotating body 50 by welding or the like.

- The rotating body 50 is not limited to being rotatably supported on the outer peripheral surface of the tip portion 24 of the inner tube 20, but may also be rotatably supported by the inner peripheral surface of the outer tube 30, similar to the inner tube 20.

- In the above embodiment, a disk cylinder-type cylinder lock unit 11 was illustrated, but the configuration of the cylinder lock unit 11 is not limited to this. Other cylinder locks, such as rotary disk cylinders, pin cylinders, dimple cylinders, and magnetic tumbler cylinders, can also be used. In short, the cylinder lock unit 11 may be any cylinder that includes an inner cylinder 20 and an outer cylinder 30 and is configured so that rotation of the inner cylinder 20 relative to the outer cylinder 30 is permitted only when a compatible key 90 is inserted.

DESCRIPTION OF SYMBOLS 10...Device body 11...Cylinder lock section 12...Electronic lock section 20...Inner cylinder 21...Base end section 22...Main body section 23...Slide hole 24...Tip section 25...First section 26...Through hole 27...Accommodating hole 28...Second section 29...Internal thread hole 30...Outer cylinder 31...Base end section 32...Main body section 33...Accommodating recess 34...Male thread 35...Tip section 40...Cover member 41...Communicating hole 50...Rotating body 51...Engaging section 52...Tip section 60...Latching piece 61...Insertion hole 70...Spacer 72...Washer 73...Screw 80...Trim member 81...Nut 90...Key

Claims (2)

a cylinder lock unit including an inner cylinder and an outer cylinder, the cylinder lock unit being configured such that rotation of the inner cylinder relative to the outer cylinder is permitted only when a matching key is inserted into the inner cylinder;
an electronic lock unit including a rotor located at the tip end of the inner cylinder and supported rotatably around the axis of the inner cylinder, and a locking piece connected to the rotor and configured to be able to lock onto an object by being rotated by a motor;
the rotor is cylindrical and rotatably supported by an outer peripheral surface of a tip end of the inner cylinder,
The tip portion is provided with a through hole that allows an edge of the key to protrude from an outer peripheral surface of the tip portion,
An engaging portion with which an edge of the key engages is provided on the inner circumferential surface of the rotating body,
When the key is not inserted into the inner cylinder, the rotating body is allowed to rotate relative to the inner cylinder, while when a compatible key is inserted into the inner cylinder, the rotating body engages with the inner cylinder via the key, causing the rotating body to rotate integrally with the inner cylinder.
Locking device. the locking piece has an insertion hole into which the rotating body is inserted,
a rotation stopper portion that prevents rotation of the locking piece relative to the rotating body is provided on an inner peripheral surface of the insertion hole and an outer peripheral surface of the rotating body,
The locking device according to claim 1 .