Key storage device
The key storage device addresses installation and removal challenges by using a three-part attachment system and an electronic locking mechanism, ensuring easy, mark-free attachment to any door thickness and height, and facilitating secure, multiple-user access.
Patent Information
- Application Number
- JP2021165836
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-10-08
- Publication Date
- 2025-08-06
- Estimated Expiration
- 2041-10-08
AI Technical Summary
Conventional key storage devices face issues such as installation and removal difficulties, leaving installation marks, and limitations on the height and thickness of the door body to which they can be attached, as well as restricting multiple users' access to keys.
A key storage device with a three-part attachment system comprising a first connecting part on the door surface, a second part in the door-frame gap, and a third part on the door inner surface, using plate-like members with U-shaped grooves and protrusions for secure attachment without leaving marks, and an electronic locking mechanism via a mobile terminal for easy access.
The device allows for easy installation and removal without leaving marks, supports various door thicknesses and heights, and enables secure, hassle-free access control for multiple users.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a key storage device in which a key storage body that stores keys for locking and unlocking a door body is attached to the door body via an attachment member. [Background technology]
[0002] In the past, for example, in the case of vacant rental properties, the manager kept the keys to lock and unlock the doors of the rental property, and when viewing the rental property, the manager was required to be present.
[0003] However, when the key is taken out of storage to view a rental property, there is a problem in that the key is not in storage, making it difficult for other people who wish to view the same rental property to view it.
[0004] Furthermore, the method in which an administrator stores keys in a predetermined storage location has the problem that multiple people, for example, multiple construction workers, cannot individually access the keys.
[0005] To address these issues, key storage devices have been proposed and put into practical use, in which a key storage body that stores keys for locking and unlocking a door body is attached to the building or door body via an attachment member.
[0006] However, many conventional key storage devices use screws or other mounting components to secure the key storage body to a door or building, which creates the problem that after the key storage device is removed, marks such as screw holes remain where the key storage body was installed.
[0007] In order to address this issue, the key storage devices disclosed in Patent Documents 1 and 2 have been proposed. However, the key storage device disclosed in Patent Document 1 has the problem that the location where the key storage body is attached is specific to the door handle, making it difficult to operate. Also, the key storage device disclosed in Patent Document 2 has the problem that it is time-consuming to install and remove the key storage body.
[0008] The locking mechanism of the key storage body itself of this type of key storage device includes a combination lock used in the key storage device disclosed in Patent Document 1, a locking mechanism using a key used in the key storage device disclosed in Patent Document 2, and an electronic locking mechanism using a mobile terminal used in the key storage devices disclosed in Patent Documents 3 and 4. [Prior art documents] [Patent documents]
[0009] [Patent Document 1] Utility Model Registration No. 3138550 [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-11145 [Patent Document 3] Special Publication No. 2017-502185 [Patent Document 4] Japanese Patent Application Laid-Open No. 2000-240332 Summary of the Invention [Problem to be solved by the invention]
[0010] In view of the problems associated with the above-mentioned key storage devices, the present invention aims to provide a key storage device that does not have restrictions on the height position or thickness of the door body to which the key storage body is attached, and that does not require much effort to install and remove the key storage body. [Means for solving the problem]
[0011] In order to achieve the above object, the key storage device of the present invention is a key storage device in which a key storage body, which stores keys for locking and unlocking a door body, is attached to the door body via an attachment member, and the attachment member is attached to the key storage body and comprises a first connecting part which is arranged on the outer surface of the door body, a second connecting part which is arranged in the gap between the door body and the door frame, and a third connecting part which is arranged on the inner surface of the door body, the second connecting part and the third connecting part being made of plate-like members, and the second connecting part has both ends exposed on the outer surface of the door body when the second connecting part is arranged in the gap between the door body and the door frame, and a U-shaped groove formed in the middle connecting part which is located in the gap between the door body and the door frame or on the inner surface of the door body, and when the door body is closed, the first connecting part engages with a protruding piece which extends towards the inner surface of the door body and is defined by the groove in the second connecting part, thereby preventing the first, second and third connecting parts from separating.
[0012] In this case, the first connection portion is made of a plate-like member, and a long hole is formed at an end of the first connection portion, and the second connection The projection formed on the portion can be inserted and engaged.
[0013] Further, elongated holes may be formed at both ends of the first connecting portion.
[0014] The first connecting portion is made of a linear member, and a loop portion is formed at an end of the first connecting portion. connection The projection formed on the portion can be inserted and engaged.
[0015] The second connecting portion may also include an expandable portion that expands and contracts in accordance with the thickness of the door body. [Effects of the Invention]
[0016] According to the key storage device of the present invention, there are no restrictions on the height position or thickness of the door body to which the key storage body is attached, and a key storage device can be provided that does not require much effort to install and remove the key storage body. [Brief explanation of the drawings]
[0017] [Figure 1] FIG. 1 shows a first embodiment of the key storage device of the present invention, where (a1) is a perspective view showing the state when the key storage device is attached to a door body, (a2) is a plan view of the same, (b1) is a perspective view showing the state when the key storage device has been attached to the door body, and (b2) is a plan cross-sectional view of the same. [Figure 2] 1A to 1D show a key storage body to which the first connecting portion of the mounting member of the key storage device is attached, where (a) is a plan view, (b) is a front view, (c) is a side view, and (d) is a perspective view. [Figure 3] The mounting member of the key storage device is shown, where (a1) is a plan view of the first connection part, (a2) is a front view of the same, (a3) is an oblique view of the same, (b1) is a plan view of the second and third connection parts, (b2) is a front view of the same, (b3) is a side view, and (b4) is an oblique view of the same. [Figure 4] 1A, 1B, and 1C show the state in which the lid of the key storage body of the key storage device is open, with FIG. 1A being a front view, FIG. 1B being a side cross-sectional view, and FIG. 1C being a perspective view. [Figure 5] 1A and 1B show a wire reel type key holder of the key storage device, where (a) is a plan view, (b) is a front view, (c) is a side view, (d) is a rear view, and (e) is a perspective view. [Figure 6] 10A, 10B, and 10C are explanatory diagrams of the operation of the wire reel type key holder of the key storage device, in which (a) is a front view, (b) is a side cross-sectional view, and (c) is a perspective view. [Figure 7] 1A to 1E show a modified example of a wire reel type key holder of the key storage device, where (a) is a plan view, (b) is a front view, (c) is a side view, (d) is a rear view, and (e) is a perspective view. [Figure 8] 1A shows a second embodiment of the key storage device of the present invention, in which (a) is a front view showing the state in which the key storage device is attached to a door body, (b) is a perspective view of the same, and (c) is a plan cross-sectional view of the same. [Figure 9]1A to 1D show a first connecting portion of the mounting member of the key storage device, where FIG. 1A is a plan view, FIG. 1B is a front view, FIG. 1C is a side view, and FIG. 1D is a perspective view. [Figure 10] The second and third connection parts of the mounting member of the key storage device are shown, where (a) is a rear view, (b1) is a plan view of the second connection part, (b2) is a plan view showing the second connection part in an extended state, (c) is a front view, (d) is a side view, and (e) is a perspective view. [Figure 11] 1A and 1B show the state when assembling the second and third connecting parts of the mounting member of the key storage device, where (a) is a plan view, (b) is a front view, (c) is a side view, and (d) is a perspective view. [Figure 12] 3A and 3B show a third embodiment of the key storage device of the present invention, in which (a) is a front view showing the state in which the key storage device is attached to a door body, (b) is a perspective view of the same, and (c) is a plan cross-sectional view of the same. [Figure 13] 1 shows the first connection part of the key storage body and the mounting member of the key storage device, where (a) is a plan view of the key storage body, (b) is a front view of the same, (c) is a left side view of the same, (d) is a right side view of the same, (e) is a perspective view of the same, (f) is a front view of the first connection part, and (g) is a front view of a modified example of the first connection part. DETAILED DESCRIPTION OF THE INVENTION
[0018] Hereinafter, an embodiment of a key storage device of the present invention will be described with reference to the drawings.
[0019] 1 to 6 show a first embodiment of a key storage device according to the present invention. This key storage device is configured so that a key storage body 4, which stores keys for locking and unlocking a door body D, is attached to the door body D via an attachment member L. The attachment member L is attached to the key storage body 4 and comprises a first connecting part 1 that is attached to the outside surface of the door body D, a second connecting part 2 that is attached to the gap between the door body D and the door frame F, and a third connecting part 3 that is attached to the inside surface of the door body D. The first connecting part 1, the second connecting part 2, and the third connecting part 3 are made of plate-like members, and a long hole 11 is formed at the end of the first connecting part 1, and a long hole 11 is formed at the end of the second connecting part 3. 2. When the second connecting part 2 is placed in the gap between the door body D and the door frame F, both end parts 21a are exposed on the outer surface of the door body D, and the intermediate connecting part 21b forms a U-shaped groove 21 located in the gap between the door body D and the door frame F or on the inner surface of the door body D, and when the door body D is closed, a protruding piece 22 extending toward the inner surface of the door body D defined by the groove 21 of the second connecting part 2 is inserted into and engaged with the long hole 11 of the first connecting part 1, thereby preventing the first connecting part 1, the second connecting part 2 and the third connecting part 3 from separating. Here, depending on the form of the door body D, the door frame F may include the counterpart door body of a double door or a parent-child door (the same applies to the other embodiments described below).
[0020] The plate-like members constituting the first connection part 1, the second connection part 2 and the third connection part 3 can be made of, for example, a plate material made of stainless steel or the like having a thickness of about 1 mm, thereby providing an attachment structure that is highly secure against tampering.
[0021] The first connecting part 1 attached to the key storage body 4 is fixed to the back surface of the main body 41 of the key storage body 4 from the inside of the main body 41 with a screw, for example, so that it cannot be removed unless the lid body 42 is opened, in order to prevent unauthorized operation.
[0022] In this embodiment, the elongated holes 11 formed in the first connecting portion 1 are formed at both ends of the first connecting portion 1. This allows the door body D to be used for either left-opening or right-opening doors. In addition, the long hole 11 may be formed only at one end of the first connecting part 1. In this case, by changing the attachment direction of the first connecting part 1 to the back surface of the main body 41 of the key storage body 4, it can be used for either a left-opening or right-opening door body D.
[0023] On the side of the first connecting part 1 that contacts the door body D, an attachment means 12 is provided for attaching the key storage body 4 to the door body D via the first connecting part 1. This attachment means 12 does not require any effort to install or remove the attachment member L and the key storage body 4. When the material L and the key storage body 4 are removed, a material that does not leave any marks on the door body D and is suitable for the material of the door body D should be used. Specifically, for example, a magnetic material such as a magnet sheet, an adhesive sheet, or a sticky sheet can be used.
[0024] The second connecting portion 2 and the third connecting portion 3 are an integral plate-like member and are configured to form a substantially L-shape.
[0025] On the side of the third connecting part 3 that comes into contact with the door body D, an attachment means 31 for attaching the third connecting part 3 to the door body D is provided. This attachment means 31 does not require much effort to install and remove the mounting member L and the key storage body 4, and does not leave any marks on the door body D when the mounting member L and the key storage body 4 are removed.The attachment means 31 is selected to be suitable for the material of the door body D, and specifically, for example, a magnetic member such as a magnet sheet, an adhesive sheet, or a sticky sheet can be used.
[0026] The key storage body 4 includes a main body 41, a cover body 42, and a locking mechanism (activation button 43) for the key storage body 4 itself (cover body 42).
[0027] In this embodiment, the locking mechanism of the key storage body 4 itself (lid body 42) employs an electronic locking mechanism using a mobile terminal. This electronic locking mechanism using a mobile terminal works by placing a mobile terminal installed with an authentication application program that can transmit an authentication signal under specific conditions (for example, date and time) near the key storage body 4, operating the start button 43, and executing the authentication application program on the mobile terminal, which transmits an authentication signal via wireless communication from the mobile terminal.When a control device provided in the key storage body 4 receives this authentication signal, it unlocks the locking mechanism of the lid body 42, and by opening the lid body 42, the keys stored in the key storage body 4 can be used, and by closing the lid body 42, the locking mechanism of the lid body 42 is automatically locked. The key storage body 4 is provided with a control device and a power source (battery) for the control device, and may also be provided with contacts or a connector for connecting to an external power source in the event of a power failure (dead battery). The locking mechanism of the key storage body 4 itself can be an electronic locking mechanism using a mobile terminal as used in this embodiment, or a conventional locking mechanism, specifically a locking mechanism using a dial lock or key.
[0028] Inside the main body 41 of the key storage body 4, a wire reel type key holder 5 for attaching a key for locking and unlocking the door body D is provided. The wire reel type key holder 5 allows the key for locking and unlocking the door body D to be stored inside the main body 41 of the key storage body 4 and pulled out from inside the main body 41 via a wire 55. This wire reel type key holder 5 has a key holder main body 51 rotatably attached with a screw 54 to a mounting plate 53 which is swingably attached via a horizontal axis 52 to a bracket 44 formed on the inner surface of the main body 41 of the key storage body 4. This allows the position of the key holder body 51 from which the wire 55 is to be pulled out to be oriented in the direction in which the wire 55 is to be pulled out, and also allows the wire 55 to be pulled out without stress by making it extend outside the body 41 of the key storage body 4. In this embodiment, the position at which the shaft 52 of the mounting plate 53 is attached is above the key holder body 51, but it can also be at the back of the key holder body 51, as in the modified example shown in Figure 7.
[0029] This key storage device has a slot 11 formed at the end of the first connection part 1, and a cutout of the second connection part 2 is inserted into the slot 11. The key storage body 4 is attached to the door body D via the attachment member L with the protruding piece 22 extending toward the inner surface of the door body D defined by the groove 21 inserted therethrough. As a result, when the door body D is closed, the protruding piece 22 extending toward the inner surface of the door body D defined by the cut groove 21 of the second connecting part 2 is inserted into and engaged with the long hole 11 of the first connecting part 1, thereby preventing the first connecting part 1, the second connecting part 2 and the third connecting part 3 from separating. Furthermore, the engagement state of the first connecting part 1 and the second connecting part 2 is in a swingable state, and the distance between the first connecting part 1 and the third connecting part 3 is such that the engagement position of the first connecting part 1 with the second connecting part 2 can move freely within the range in which the cut groove 21 of the second connecting part 2 is formed, so there are no restrictions on the thickness of the door body D, and the key storage body 4 can be attached at any height position of the door body D without any hassle. Furthermore, since the mounting member L is attached to the door body D by the attachment means 12, 31, no effort is required to install and remove the mounting member L and the key storage body 4, and when the mounting member L and the key storage body 4 are removed, no scars are left on the door body D.
[0030] 8 to 11 show a second embodiment of the key storage device of the present invention. This key storage device can be applied to door bodies D that are cover doors, and the key storage body 4 is attached to the door body D via the following attachment member L.
[0031] The first connecting part 1 attached to the key storage body 4 is formed so that both ends having the long holes 11 formed therein are bent away from the outer surface of the door body D so as not to interfere with the cover part of the door body D.
[0032] The second connecting part 2 and the third connecting part 3 have an integral structure, and an expansion / contraction part 23 that expands and contracts to match the thickness of the door body D is provided on the inner surface side of the second connecting part 2. This extension / contraction section 23 is configured by movably engaging a tip side section 2A in which the groove 21 of the second connection section 2 is formed with a base side section 2B which is a plate-like member integral with the third connection section 3 and is configured to be approximately L-shaped, and is covered with a cover member 2C.
[0033] Other configurations and operations of the key storage device of this embodiment are similar to those of the key storage device of the first embodiment.
[0034] 12 and 13 show a third embodiment of the key storage device of the present invention. This key storage device is configured so that a key storage body 4, which stores keys for locking and unlocking a door body D, is attached to the door body D via an attachment member L. The attachment member L is attached to the key storage body 4 and comprises a first connecting part 1 that is attached to the outer surface of the door body D, a second connecting part 2 that is attached to the gap between the door body D and the door frame F, and a third connecting part 3 that is attached to the inner surface of the door body D. The first connecting part 1 is made of a linear member, and the second connecting part 2 and the third connecting part 3 are made of plate-like members, and a loop part 13 is formed at the end of the first connecting part 1. When the second connecting part 2 is placed in the gap between the door body D and the door frame F, both end parts 21a are exposed on the outer surface of the door body D, and the intermediate connecting part 21b forms a U-shaped groove 21 located in the gap between the door body D and the door frame F or on the inner surface of the door body D, and when the door body D is closed, the protruding piece 22 extending toward the inner surface of the door body D defined by the groove 21 of the second connecting part 2 is inserted into and engaged with the loop part 13 of the first connecting part, thereby preventing the first connecting part 1, the second connecting part 2 and the third connecting part 3 from separating.
[0035] The linear member that constitutes the first connection part 1 can be, for example, a wire (wire rope), which can provide a mounting structure that is highly secure against tampering.
[0036] The first connecting part 1 attached to the key storage body 4 is prevented from being tampered with by, for example, attaching the loop part 14 or the retaining part 15 of the first connecting part through a small hole 45 formed at the joint between the main body 41 of the key storage body 4 and the lid body 42, so that it cannot be removed unless the lid body 42 is opened.
[0037] In this embodiment, the small holes 45 formed at the joint between the main body 41 and the cover 42 of the key holder 4 are formed on both side surfaces of the key holder 4. This allows the door body D to be used for either left-opening or right-opening doors.
[0038] An attachment means 46 for attaching the key storage body 4 to the door body D is provided on the side of the main body 41 of the key storage body 4 that contacts the door body D. This attachment means 46 does not require much effort to install and remove the mounting member L and the key storage body 4, and does not leave any marks on the door body D when the mounting member L and the key storage body 4 are removed.The attachment means 46 is selected to be suitable for the material of the door body D, and specifically, for example, a magnetic member such as a magnet sheet, an adhesive sheet, or a sticky sheet can be used.
[0039] Other configurations and operations of the key storage device of this embodiment are similar to those of the key storage device of the first embodiment.
[0040] The key storage device of the present invention has been described above based on several embodiments, but the present invention is not limited to the configurations described in the above embodiments. The configurations described in each embodiment can be combined as appropriate, or the shape of the mounting member can be molded to match the shape of the door body, making it applicable to the outward-opening doors and inward-opening doors described in the embodiments. The configuration can be modified as appropriate within the scope of the spirit of the invention. [Industrial Applicability]
[0041] The key storage device of the present invention has no restrictions on the height position or thickness of the door body to which the key storage body is attached, and does not require any effort to install or remove the key storage body.Therefore, it can be widely used in a wide range of applications, such as vacant rental properties, private lodging properties, and rooms where access restrictions are required, such as document rooms of large companies, where the key storage body that stores keys for locking and unlocking the door body is attached to the door body via an attachment member. [Explanation of symbols]
[0042] D Totai F door frame L Mounting material 1 First connection 11 long hole 12 Attachment means 13 Loop section 14 Loop section 15 Stopper 2 Second connection 2A Tip side 2B Base end side 2C Cover material 21 Cutting groove 22 Projecting piece 23 Telescopic part 3 Third connection 31 Attachment means 4 Key storage body 41 Main Unit 42 Lid 43 Start button 44 Bracket 45 small hole 46 Attachment means 5 Wire reel key holder 51 Key holder body 52 axes 53 Mounting plate 54 bis 55 wire
Claims
1. 1. A key storage device in which a key storage unit, which stores keys for locking and unlocking a door, is attached to a door body via an attachment member. The attachment member is attached to the key storage unit and comprises a first connecting part that is located on the outer surface of the door body, a second connecting part that is located in the gap between the door body and the door frame, and a third connecting part that is located on the inner surface of the door body. The second and third connecting parts are made of plate-like members, and the second connecting part has both ends exposed on the outer surface of the door body when the second connecting part is located in the gap between the door body and the door frame, and a U-shaped groove formed in the middle connecting part that is located in the gap between the door body and the door frame or on the inner surface of the door body. When the door body is closed, the first connecting part engages with a protruding piece that extends toward the inner surface of the door body, defined by the groove in the second connecting part, thereby preventing the first, second, and third connecting parts from separating.
2. The first connection portion is made of a plate-like member, and an elongated hole is formed at an end of the first connection portion.
2. The key storage device according to claim 1, wherein a protruding piece formed on the second connecting portion is inserted into and engaged with the elongated hole.
3. 3. The key storage device according to claim 2, wherein elongated holes are formed at both ends of the first connecting portion.
4. The key storage device of claim 1, characterized in that the first connection portion is composed of a linear member, and a loop portion is formed at the end of the first connection portion, and a protruding piece formed on the second connection portion is inserted into and engaged with the loop portion.
5. 5. The key storage device according to claim 1, wherein the second connecting portion is provided with an expandable portion that expands and contracts in accordance with the thickness of the door body.
Citation Information
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