Lock systems to prevent unauthorized entry

Abstract

We provide a lock system that can resist unauthorized unlocking. [Solution] In a locking system 100 that locks or unlocks by rotating a key body 10 inserted into a keyhole 21 of a locking device 20, the key body 10 is: A gripping part 1 that is held by the user, The insertion part 2 is inserted into the keyhole of the locking device 20, It comprises a bending portion 3 provided between the gripping portion 1 and the insertion portion 2, The gripping portion 1, the insertion portion 2, and the bending portion 3 are arranged along a common virtual plane. The insertion portion 1 extends in a direction that intersects the longitudinal direction L1 from the gripping portion 1 to the bending portion 2 in the virtual plane.

Description

Technical Field

[0001] The present invention relates to a lock system for resisting unauthorized unlocking.

Background Art

[0002] Conventionally, lock structures (lock systems) that perform locking or unlocking by rotating a key body inserted into a keyhole have become widespread, and among these, devices for resisting picking using tools such as wires and screwdrivers have been proposed (see, for example, Patent Document 1).

Prior Art Literature

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, for this type of unauthorized unlocking, not only have the methods become more sophisticated, but the tactics have also become more forceful, such as pressing a drill bit against the keyhole to pry it open, and thus the prior art has room for improvement from the perspective of resisting unauthorized unlocking.

[0005] Note that the problem caused by unauthorized unlocking is not limited to door locks installed in residences, business establishments, etc., and the damage has become serious as theft of the vehicles themselves even in luxury vehicles and the like.

[0006] Accordingly, an object of the present invention is to provide a lock system that can resist unauthorized unlocking.

Means for Solving the Problems

[0007] One aspect of the present invention is exemplified as follows. [1] In a locking system in which locking or unlocking is performed by rotating a key body inserted into the keyhole of a locking device, the key body is: A gripping part that is held by the user, An insertion part that is inserted into the keyhole of the locking device, It comprises a bending portion provided between the gripping portion and the insertion portion, The gripping portion, the insertion portion, and the bending portion are arranged along a common virtual plane. The insertion portion extends in a direction intersecting the longitudinal direction from the gripping portion to the bending portion in the virtual plane. Key body. [2] A locking system in which locking or unlocking is performed by rotating a key body inserted into the keyhole of the locking device, the locking device The key body insertion part is inserted into the keyhole, The system includes a cover member that covers at least a portion of the space outside the opening side of the keyhole, The cover member has an insertion opening that serves as an insertion path for the key body insertion part, and is configured to be rotatable in response to the rotation operation of the key body. Locking mechanism. [3] A lock system comprising the key body described in item 1 and the locking device described in item 2. [Effects of the Invention]

[0008] The lock system of the present invention can be protected against unauthorized unlocking. [Brief explanation of the drawing]

[0009] [Figure 1] A diagram showing an example of the key configuration in Embodiment 1. [Figure 2] A diagram showing an example of the configuration of a locking device in Embodiment 1. [Figure 3] A diagram showing an example of the configuration of a locking device in Embodiment 1. [Modes for carrying out the invention]

[0010] Hereinafter, the present embodiment as one aspect of the present invention will be described with reference to the drawings. In the content shown in the drawings, the scales, shapes, and lengths may be exaggerated for further clarity.

[0011] The present embodiment relates to a lock system for countering unauthorized unlocking. In recent years, coupled with the growing awareness of crime prevention, social demands for countering unauthorized unlocking have been strongly sought. According to the present embodiment, it is possible to counter not only sophisticated picking but also forcible unauthorized unlocking such as forcing a drill bit against the keyhole to pry it open. Therefore, according to the present embodiment, the above social demands can be sufficiently met, and the significance thereof is extremely great.

[0012] The lock system assumed by the present embodiment performs locking or unlocking by a rotating operation of a key body inserted into the keyhole of a lock device. In this type of lock system, unlocking can be performed by rotating the key body in a first rotation direction (for example, counterclockwise / clockwise), and locking can be performed by rotating the key body in a second opposite rotation direction (for example, clockwise / counterclockwise).

[0013] [Embodiment 1] <Lock System> ≪Key Body≫ The lock system according to the present embodiment can be configured to include the key body according to the present embodiment (hereinafter sometimes simply referred to as "key body").

[0014] The key body comprises: a grip portion to be gripped by a user; an insertion portion to be inserted into the keyhole of the lock device; and a bent portion provided between the grip portion and the insertion portion, wherein the grip portion, the insertion portion, and the bent portion are arranged along a common virtual plane, and the insertion portion extends in a direction intersecting the longitudinal direction from the grip portion toward the bent portion on the virtual plane.

[0015] According to this, by utilizing the bent shape of the key body, the insertion portion thereof can be guided into the keyhole of a predetermined lock device. The lock system using such a special key body can resist unauthorized unlocking.

[0016] Figure 1 is a diagram showing a configuration example of the key body 10 in the lock system 100 according to the present embodiment.

[0017] The key body 10 can include a grip portion 1, an insertion portion 2, and a bent portion 3. The grip portion 1, the insertion portion 2, and the bent portion 3 are arranged along a common virtual plane P. On the virtual plane P, the insertion portion 2 extends in a direction intersecting the longitudinal direction from the grip portion 1 toward the bent portion 3.

[0018] In the key body 10, the first center line L1 extending from the grip portion 1 toward the bent portion 3 and the second center line L2 along the longitudinal direction of the insertion portion 2 can be arranged in non-collinear positions. According to this, it is easy to achieve a favorable bent portion 3.

[0019] In the key body 10, the angle formed by the first center line L1 and the second center line L2 can be 90° or more and 135° or less. If this angle is 90° or more, the insertion portion 2 of the key body 10 can be easily inserted deep into the keyhole, and if it is 135° or less, which is at least half of the case of a straight shape (180°) and the case of a right-angle shape (90°), the user can easily grip the grip portion 1 and rotate the insertion portion 2.

[0020] In the key body 10, the bent portion 3 can connect the grip portion 1 and the insertion portion 2 at a substantially right angle (substantially L-shaped; the above-mentioned angle of 90°) on the virtual plane P. According to this, it is easy to achieve a more favorable bent portion 3.

[0021] As described above, when the grip portion 1 and the insertion portion 2 are connected at a substantially right angle, the bent portion 3 can be the substantially right-angle portion. In this regard, the length along the longitudinal direction of the insertion portion 2 (length Lg2 in the figure) can be treated as the length between the substantially right-angle portion and the distal end of the insertion portion 2 in the longitudinal direction.

[0022] On the other hand, the bent portion 3 may be curved, for example, under a predetermined curvature. In this case, the first center line L1 can be treated as a line extending from the gripping portion 1 to the "center of the curved portion," and similarly, the length along the longitudinal direction of the insertion portion 2 can be treated as the length between the "center of the curved portion" and the longitudinal end of the insertion portion 2.

[0023] In the key body 10, the insertion portion 2 and the bending portion 3 can be formed as a single plate shape, and furthermore, the gripping portion 1 can also be formed as a single plate shape in addition to these. This makes it easier to realize a suitable key body 10.

[0024] In the key body 10, the insertion portion 2 may have fitting teeth 2a that fit the internal pins of the locking device. The fitting teeth 2a may include one or more notches, steps, recesses, and / or projections formed on the side edge of the insertion portion 2. That is, the key body 10 may be a so-called notched key, a dimple key, or a wave key. Since a predetermined type of key body 10, and by extension a locking system 100, can be realized with the desired fitting teeth 2a, the scope of application of this embodiment is broad.

[0025] In the key body 10, the gripping portion 1 can be formed wider than the insertion portion 2 and the bending portion 3 in the virtual plane P. This makes it easier for the user to grip the gripping portion 1 and rotate the insertion portion 2.

[0026] In the key body 10, when the insertion portion 2 is inserted into the keyhole, at least a part of the grip portion 1, and in particular all of the grip portion 1, can be located outside the outer edge of the outer cylinder of the locking device when viewed from the direction of the second center line L2 along the longitudinal direction of the insertion portion 2. This makes it easier to realize a suitable key body 10.

[0027] Locking device The lock system according to this embodiment may be configured to include the lock device according to this embodiment (hereinafter sometimes simply referred to as the "lock device").

[0028] The locking mechanism is The key body insertion part is inserted into the keyhole, The system includes a cover member that covers at least a portion of the space outside the opening side of the keyhole, The cover member has an insertion opening that serves as an insertion path for the key body insertion part, and is configured to be rotatable in response to the rotation operation of the key body.

[0029] According to this design, a predetermined key body can be inserted through the opening of the cover member. A lock system using such a special locking device can protect against unauthorized unlocking.

[0030] Figures 2 and 3(a) to 3(b) show examples of the configuration of the locking device 20 in the locking system 100 according to this embodiment. For the sake of explanation, the radial direction of the locking device 20 will be referred to as the "X direction" and the "Y direction," and the inward direction (axial direction) will be referred to as the "Z direction." These directions are orthogonal to each other.

[0031] The locking device 20 may include a keyhole 21 and a cover member 22. The cover member 22 may have an insertion opening 23 which serves as an insertion path for the key body, and may be configured to rotate in response to the rotational operation of the key body.

[0032] The locking device 20 can be locked or unlocked by rotating the key inserted into the keyhole, and preferably the locking device 20 can be configured as a so-called "cylinder locking device".

[0033] The mechanism of such a cylinder lock device can employ known designs. A main body cylinder 25 having a keyhole 21 and a rotating body 24, A locking member 26 that is displaced to a locked position or an unlocked position in conjunction with the rotation of the rotating body 24, It can be equipped with the following. The keyhole 21 can be opened on the front surface of the main body cylinder 25 in the Z direction.

[0034] While the example given here shows a configuration in which the rotating body 24 is arranged continuously along the axis of the main body cylinder 25, the configuration of the cylinder lock device that can be adopted in this embodiment is not limited to this example. For example, a cylinder lock device may be adopted in which an inner cylinder, which is the rotating body 24, is housed in an outer cylinder, which is the main body cylinder 25, and a keyhole 21 is provided in this inner cylinder.

[0035] When the key body 10 is inserted into the keyhole 21, each of the internal pins of the main body cylinder 25 is positioned according to the shape of the key body 10, and the rotation of the rotating body 24 is permitted.

[0036] By using the key body 10 to rotate the rotating body 24 in a first rotation direction (for example, clockwise / counterclockwise), the locking member 26 can be displaced to the unlocked position, and by rotating it in the opposite second rotation direction (for example, clockwise / counterclockwise), the locking member 26 can be displaced to the locked position. Examples of the locking member 26 include a projection, a metal plate, a fastener, and a latch.

[0037] As described above, in the locking device 20, the cover member 22 can cover at least a portion of the space outside the opening side of the keyhole 21. In one embodiment, the cover member 22 can cover at least a portion of the space such that the opening of the keyhole 21 is not visible or at least partially obscured in a front view, or so as to block the entry path of a linear tool along the axial direction of the keyhole 21. This makes it easier to prevent linear tools (such as screwdrivers or drill bits) attempting to illegally unlock the keyhole 21 from entering it.

[0038] In the locking device 20, the cover member 22 can completely cover the keyhole 21, making it impossible to see. This makes it easier to resist picking attempts using wire or the like.

[0039] In this regard, as described above, the locking device 20 can have an insertion opening 23 that serves as the insertion path for the key body 10 insertion part 2, and can also be made rotatable in response to the rotational operation of the key body 10. This allows the keyhole 21 to be concealed while still allowing the regular key body 10 to enter the keyhole 21 and, furthermore, to be rotated by the key body 10.

[0040] In the locking device 20, the insertion opening 23 formed in the cover member can be configured as a slit 23A having a width dimension greater than the plate thickness of the insertion portion 2 of the key body 10. This makes it easier to accommodate the correct key body 10.

[0041] In the locking device 20, the insertion opening 23 can be configured as a slit 23A having a length smaller than the length (length Lg2 in the figure) along the longitudinal direction of the insertion portion 2 of the key body 10. This makes it easier to conceal the keyhole 21.

[0042] In the locking device 20, the cover member 22 can rotate around the axis C of the keyhole 21 in response to the rotational operation of the key body 10. When the key body 10 is inserted into the keyhole 21, the second center line L2 along the longitudinal direction of the insertion portion 2 and the axis C of the keyhole 21 are approximately coincident.

[0043] In the locking device 20, the cover member 22 can be positioned on the main body cylinder 25 of the locking device 20, with its axis aligned with the axis C of the keyhole 21. The cover member 22 can also be supported on the opposite side from the main body cylinder 25 by a similarly rotatable bearing 27. The cover member 22 can be configured to rotate in response to the rotational operation of the key body 10, and depending on the overall configuration, it may be connected to a rotating body 24.

[0044] ≪Combination of key body and lock mechanism≫ The lock system 100 according to this embodiment can be configured as a system comprising the key body 10 and the locking device 20. In such a lock system 100, the cover member 22 suppresses the exposure of the front side (Z-direction side of the key hole 21) of the keyhole 21, while allowing insertion from the side or diagonally with the properly curved key body 10. Furthermore, the cover member 22 can rotate together with the rotation of the key body 10. This makes it easier to resist unauthorized unlocking.

[0045] The insertion portion 2 of the key body 10 is inserted into the keyhole 21 through the insertion opening 23 of the locking device 20. When the key body 10, which has been inserted all the way into the keyhole 21, is rotated, the side edge of the key body 10 presses against the inner edge of the insertion opening 23. As a result, the rotational force of the key body 10 is transmitted to the cover member 22, and the cover member 22 rotates together with the key body 10 around the axis C. As a result of this rotation, the lock is unlocked or locked.

[0046] Here, in addition to the locking device 20, a bearing 27 located on the opposite side of the main body cylinder 25 in the cover member 22 is also housed within a predetermined metal stay, thereby realizing a configuration in which the cover member 22 can rotate in response to the rotational operation of the key body 10. In realizing such a configuration, for example, the cover member 22 may rotate when pushed by the key body 10, rotate when connected to a rotating body 24, simply rotate freely, or rotate integrally with the key body 10. Any part of the key body 10 that rotates can transmit rotational force to the cover member 22.

[0047] According to the embodiment described above, it is possible to counter not only clever picking but also forceful unauthorized unlocking, such as forcing open a keyhole by pressing a drill bit against it. In recent years, coupled with increased awareness of crime prevention, there has been a strong social demand for countermeasures against unauthorized unlocking, and according to this embodiment, the above social demand can be fully met, making it extremely significant.

[0048] [Application Examples] This embodiment is easy and convenient to implement, cost-effective, and provides enhanced resistance to unauthorized unlocking, making it applicable to various devices.

[0049] In one embodiment, the locking device 20 of this embodiment may be incorporated into a rectangular stay or the like. In this case, as the key body 10 is rotated, the locking member 26 is displaced so as to pop out from the opening OP of the rectangular stay or the like, thereby realizing a slide lock mechanism that locks the sliding of the member along the rectangular stay or the like.

[0050] In a further embodiment, this embodiment can be incorporated into a vehicle anti-theft system such as that described in Japanese Patent Application Publication No. 2026-020661. For example, when a shielding member that shields the pedal space is provided so as to be slidable relative to the seat, the locking or unlocking of this sliding movement can be performed by the lock system of this embodiment. For the user, it is easy and convenient, cost-effective, and provides enhanced resistance to unauthorized unlocking, making it an effective means of preventing theft of luxury vehicles and the like.

[0051] [Other embodiments] This embodiment has been described above. However, this embodiment is not limited to the above-described form, and can be implemented with various modifications within the scope of the gist of the present invention. These modified forms can be combined and implemented together.

[0052] This embodiment is intended for applications such as door locks for homes and offices. However, it is not limited to these applications and can also be applied to vehicles, lockers, cabinets, mailboxes, and delivery boxes.

[0053] According to this embodiment, not only is it practically difficult to pick the lock without authorization, but the unique characteristics of the key and lock mechanism also enhance the psychological deterrent against attempts at unauthorized picking. In this respect as well, it is useful as a lock system to counter unauthorized picking. [Industrial applicability]

[0054] According to one aspect of the present invention, the lock system can withstand not only clever picking but also forceful unauthorized unlocking, such as forcing open a keyhole by pressing a drill bit against it, and therefore can withstand unauthorized unlocking. [Explanation of Symbols]

[0055] 100: Lock System 10: Key body 1: Grip part 2: Insertion part 2a: Matching teeth 3: Bending section 20: Locking device 21: Keyhole 22: Cover component 23: Insertion port 23A: Slit 24: Rotating body 25: Main body cylinder 26: Locking component 27: Bearings

Claims

1. A locking system in which locking or unlocking is performed by rotating a key body inserted into the keyhole of the locking device, the locking device The key body insertion part is inserted into the keyhole, The system includes a cover member that covers at least a portion of the space outside the opening side of the keyhole, The cover member has an insertion opening that serves as an insertion path for the key body insertion part, and is configured to be rotatable in response to the rotation operation of the key body. Locking mechanism.

2. A locking system comprising the locking device described in Claim 1, and a key body that locks or unlocks by rotating the key body inserted into the keyhole of the locking device.

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