Key box

Abstract

This key box comprises: a body that has an opening, an internal space connected to the opening, a first hole, and a second hole, and that accommodates, in the internal space, a key to be taken in and out through the opening; a lid for switching the opening between a closed state and an open state; a latch that has a first portion to be inserted into the first hole, a second portion to be inserted into the second hole, and a third portion connected to the first and second portions, that is moved to a first position for restraining the lid in the closed state and to a second position for opening the lid, and in which the third portion is bent with respect to the first and second portions when viewed along a straight line passing the first and second holes in a state where the latch is fixed at the first position; and a lock mechanism for fixing the latch at the first position.

Description

Key Box

[0001] The present invention relates to key box technology.

[0002] For example, there are known key box technologies that allow an object to be locked while valuables such as keys are stored inside. For example, Patent Document 1 discloses a technology relating to an improved key box structure that features a front cover with a dial lock for opening and closing the key box and a latch lock lever for locking and unlocking a padlock. Patent Document 2 discloses a technology relating to a key box with a padlock that can store car keys and the like in an electromagnetically shielded state.

[0003] Patent No. 5153749 Patent No. 6936484

[0004] The invention of Patent Document 1 merely pursued the convenience of the key box structure and did not aim to improve the maintainability or durability of the key box / padlock itself. Also, the invention of Patent Document 2 simply had an exterior with an electromagnetic shield for the purpose of protecting valuables inside.

[0005] In view of the above background, the present invention provides an improved technique that is highly maintainable and convenient when managing key boxes.

[0006] One aspect of the present disclosure provides a key box having: a main body having an opening and an internal space connected to the opening, as well as a first hole and a second hole, and storing keys inserted and removed through the opening in the internal space; a lid that transitions between a closed state and an open state of the opening; a latch having a first portion inserted into the first hole, a second portion inserted into the second hole, and a third portion connected to the first and second portions, and that moves to a first position that restrains the lid in the closed state and a second position that opens the lid, wherein when viewed from a line passing through the first and second holes with the latch fixed in the first position, the third portion is bent relative to the first and second portions; and a locking mechanism that fixes the latch in the first position.

[0007] When the latch is fixed in the first position and viewed from a line passing through the first hole and the second hole, the angle formed by the third portion and the first and second portions may be an obtuse angle.

[0008] The latch may have articulation portions between the first and third portions and between the second and third portions, and the articulation portions may be able to rotate and bend relative to the first and second portions.

[0009] The locking mechanism may have a dial for locking or unlocking, and when a user operates the dial, the dial may provide a reaction force in accordance with the user's operation.

[0010] A mechanical operating sound may be generated when the dial is turned.

[0011] The key box may have a plurality of dials for locking or unlocking the locking mechanism, and the width of the plurality of dials in a direction perpendicular to the direction of rotation may be 3 cm or more and 5 cm or less.

[0012] Another aspect of the present disclosure provides a key box having: a main body having an opening, an internal space connected to the opening, a first upper hole, and a second upper hole, and storing keys inserted and removed through the opening in the internal space; a lid that transitions between a closed state and an open state of the opening; and a latch having a first insertion part that is inserted into the first upper hole and a second insertion part that is inserted into the second upper hole, and moving to a first position that restrains the lid in the closed state and a second position that opens the lid, wherein the main body has a first storage space that accommodates the first insertion part, a second storage space that accommodates the second insertion part, a first separation wall that separates the first storage space from the internal space, and a second separation wall that separates the second storage space from the internal space.

[0013] The key box may have a first bottom hole located opposite the first upper hole and provided at the bottom of the first storage space, and a second bottom hole located opposite the second upper hole and provided at the bottom of the second storage space.

[0014] The key box may have a lock space with a locking mechanism that secures the latch in the first position, the first separating wall separating the first storage space from the lock space, and the second separating wall separating the second storage space from the lock space.

[0015] The key box may have a dial for locking the lid that closes the opening when the latch is fixed in the first position.

[0016] The dial may have a rotation mechanism that rotates in one direction and the opposite direction, and the rotation angle may be less than 360 degrees.

[0017] In this key box, the main body may be shielded so that the internal space is electromagnetically shielded when the lid is in the closed position.

[0018] According to the present invention, it is possible to provide an improved technique that is highly maintainable and convenient when managing key boxes.

[0019] 1 is a perspective view illustrating the appearance of a key box 1 according to one embodiment. A side view illustrating an overview of a key box in the related art. A top view of the key box 1. A side view of the key box 1 and a latch 10. A front view illustrating the dial of the key box 1. A front view illustrating the interior of the key box 1 with the lid C removed. A side view illustrating a comparison of the key box 1 with the related art. A top view illustrating the latch 10 having a joint J. A side view illustrating the latch 10 having a joint J. A side view illustrating the latch 10 of a key box 1 according to a modified example. A front view illustrating the latch 10 of a key box 1 according to a modified example. A perspective view illustrating the appearance of a key box 21 when locked according to one embodiment. A view illustrating an overview of a key box 9 according to the related art. A perspective view illustrating the appearance of a key box 21 when opened according to one embodiment. A cross-sectional view illustrating the separation wall W of the key box 21. A cross-sectional view illustrating the separation wall W of the key box 21 according to another example.

[0020] 1. First Embodiment 1-1. Configuration Fig. 1 is a perspective view illustrating the exterior of a key box 1 according to one embodiment. In this example, the key box 1 (or simply the key box / padlock) refers to a padlock with a key box (or a padlock-type key box) that can be locked with a specific or arbitrary key, such as a property key (or key) used by a rental property manager, stored inside. Furthermore, since both the key box and the padlock are locked when locked, a mechanism is provided that prevents the key from being removed from the key box unless the key box itself is unlocked.

[0021] Here, using the rental property example, a method for operating and managing a key box will be explained. For example, the manager can attach the key box 1 containing the key to an outdoor fence (wire mesh, for example), i.e., lock it. Furthermore, when a person wishing to view the rental property visits, the manager can remove the key from the key box and guide the person to a vacant room. In other words, under normal circumstances when there are no viewings of the property, the manager can manage the key on-site while ensuring security. On the other hand, when a viewing request arises, the manager can smoothly guide the person to a vacant room without having to take the trouble of bringing the key. This is a convenient operation method, for example, when there is no manager resident at the property. Next, the components of the key box 1 will be described.

[0022] In this example, the key box 1 includes a latch 10 and a main body 100. In this example, the latch 10 is a metal fitting for hooking the key box to an object (locking location) when locking. This is called a "hanging" and is generally U-shaped. In this example, the latch 10 is divided into multiple parts: a first part 11, a second part 12, and a third part 13. In this example, the first part 11, the second part 12, and the third part 13 have an integral shape, and the latch 10 having this shape is obtained, for example, by bending a rod-shaped member. In this example, the first part 11 includes a locking portion for locking a padlock (not shown), and locks by engaging with a key box integrated with the lock. In this example, the second part 12 is located approximately parallel to the first part 11 and can engage with the key box in the same way as the first part 11. 1 shows the key box in a locked state, with the first part 11 and the second part 12 both engaged with the main body 100 of the key box. In this example, the third part 13 is a part for hanging the key box main body from an object, and is physically connected to the first part 11 and the second part 12. Next, the main body 100 will be described.

[0023] In this example, the main body 100 represents the housing of the key box 1. In this example, when unlocking the key box 1, the first part 11 is detached from the main body 100, and the second part 12 rotates within the second hole H2, allowing it to be removed from (or attached to) an object. In this example, the main body 100 is provided with a first hole H1 and a second hole H2, and when locking, the first part 11 is inserted into the first hole H1.

[0024] In this example, the key box 1 has an internal space A within the main body 100, which is a space for storing the key 2. The internal space A is connected to an opening O, which is an entrance to the interior, and is a space formed by the opening O. In this example, a user can insert and remove the key 2 into the internal space A through the opening O. Note that when locking or unlocking the padlock, that is, engaging or disengaging the shackle 10 with the main body 100, a user operation is required, for example, in accordance with a locking mechanism provided in the internal space A. In this example, the locking mechanism includes, for example, a mechanism for fixing the shackle 10 in a position where it engages with the main body 100 (an example of a first position). More specifically, for example, the mechanism is a mechanism in which the shackle 10 is engaged with or disengaged from the main body 100 via a latch (not shown) that can be operated only from the internal space A. This will be described in more detail below.

[0025] In this example, the main body 100 is provided with a lid C for closing the opening O, and when locking, the user closes the lid C after storing the key 2 in the main body 100 (or opens the lid C when removing the key 2). In this example, the user can lock (or unlock) the key box by operating a dial key (not shown) attached to the front of the lid C. In this example, the lid C represents a member for opening and closing the key box, and as described above, can transition the opening O between a closed state and an open state.

[0026] Here, the third portion 13 will be described again. In this example, the boundary between the third portion 13 and the first and second portions 11 and 12 has a structure in which the third portion 13 is bent relative to the first and second portions 11 and 12 when viewed from a straight line (not shown) passing through the first hole H1 and the second hole H2 in a position where the latch 10 is fixed to the main body 100 (an example of the first position). The location and role of the third portion 13, including the boundary, will be described later. Next, problems with key boxes in related art will be described.

[0027] FIG. 2 is a side view illustrating an example of a key box in the related art. In this example, the key box 9 (or main body 900) represents a key box in the related art. When operating in a rental property as described above, the key box 9 may be stored (locked) outdoors due to, for example, installation location, space, or convenience. In this case, the key box 9 is locked by latching it to a facility (object) such as a fence, wire mesh, wall, or barrier that serves as a boundary between the rental property and nearby residences and parking lots (bicycle parking areas). Note that these facilities are accessory facilities installed on the premises of the rental property.

[0028] Furthermore, fence 3, shown as an example of equipment, has a lattice shape and is structured to include vertical lattice 31 and horizontal lattices 32a and 32b. In this example, Figure 2 shows the key box 9 locked with a latch on fence 3. In this example, latch 90 is hooked onto vertical lattice 31 and supported by horizontal lattice 32a, and as shown in Figure 2, key box 9 is fixed diagonally to fence 3 when viewed from the side.

[0029] When the key box is stored outdoors as described above, the arrows in FIG. 2 indicate the direction in which raindrops fall on the key box lid C9. In this example, when the key box 9 is viewed from the side, if the main body 900 is fixed at an angle to the fence 3, the key box lid C9 is exposed to raindrops, making it easier for rainwater to seep in through, for example, the opening and closing parts, the dial, or gaps in the lid. In this example, the intrusion of rainwater can cause corrosion of the key sealed inside the key box and corrosion and damage to the key box / padlock itself. Therefore, the key box 1 according to this embodiment aims to address these issues.

[0030] 3A is a top view of the key box 1. In this example, the third portion 13 of the latch 10 is connected to both the first portion 11 and the second portion 12. When viewed from above, the third portion 13 is bent and therefore protrudes behind (above in terms of the plane of the paper) the rear surface of the key box body.

[0031] Furthermore, each intersection of the dashed and dotted lines in the figure represents the center of the first portion 11 and the second portion 12, or the center of the first hole H1 and the second hole H2, and also represents the boundary portion of the third portion 13 between the first portion 11 and the second portion 12. The "Site" in the figure represents a perspective from the broken line in the figure, that is, from a straight line passing through the first hole H1 and the second hole H2. In this example, when viewed from this straight line, the latch 10 has a structure in which the third portion 13 is bent relative to the first portion 11 and the second portion 12. Here, the perspective from the "Site" on this straight line, that is, the perspective when viewing the key box 1 from the side, will be described.

[0032] FIG. 3B is a side view of the key box 1 and the latch 10. In this example, FIG. 3B shows the key box 1 as viewed from the side (perspective from "Site" in FIG. 3A). In this example, the third portion 13 of the latch 10 is connected to the first portion 11. In this example, the boundary portion with the first portion 11 is bent relative to the first portion 11 when the key box 1 is viewed from the side in a position where the latch 10 is fixed to the main body 100 (an example of a first position). Note that in the first position, the main body 100 restrains the latch 10 in a position where it is fixed to the main body 100, i.e., with the lid C closed.

[0033] Here, the boundary is bent so that the smaller angle (less than 180 degrees) of the angle between the third portion 13 and the first portion 11 when viewed from the side of the key box 1 is an obtuse angle (greater than 90 degrees but less than 180 degrees). In this example, boundary B corresponds to the corner of the bent portion and particularly represents the center of the corner. Regarding the dotted and dashed lines in the figure, the vertical line represents the center line of the first portion 11, and the horizontal line represents a perpendicular line to this center line. Therefore, the intersection point is represented as boundary B between the first portion 11 and the third portion 13. Note that the second portion 12 is not shown in this figure because it overlaps with the first portion 11 when viewed from the direction shown in the figure. In this example, the second portion 12 connects to the third portion 13 in the same manner and at the same angle as the first portion 11 (not shown).

[0034] On the other hand, when the lock is released and the lid C is opened, the shackle 10 moves to a position where the first portion 11 exits the first hole H1, i.e., a position where the shackle 10 is released from the main body 100 (an example of a second position). In this example, in the second position, the second portion 12 remains inserted into the second hole H2 and cannot be removed, allowing the shackle 10 to rotate about the second portion 12. Alternatively, both the first portion 11 and the second portion 12 may be completely separated from the main body 100, allowing the shackle 10 itself to move to a position where it is free relative to the main body 100 (an example of a second position). Note that for ease of viewing, FIG. 3B depicts an enlarged view of the shackle 10 alone in the second position. In this example, the first portion 11 of the shackle 10 has a locking portion 111 at its lower end. In this example, the locking unit 111 has a locking mechanism for locking the padlock, i.e., for fixing the latch 10 to the main body 100, and can be locked by engaging with a lock (or an integrated key box). The mechanism for locking / unlocking in the locking unit 111 will be described later. Next, the opening and closing function of the key box 1 using a dial lock will be described.

[0035] FIG. 4A is a front view illustrating the dial of the key box 1. In this example, FIG. 4A shows the key box 1 as viewed from the front. In this example, the lid C functions as a lid for the main body 100, and can seal the keys inside when the opening O (not shown) is closed and locked, as shown in FIG. 4A . Therefore, the lid C has an opening / closing function for retrieving the keys locked in the main body 100. For example, the opening / closing function of the lid C may be a rotational, sliding, or push-type operation. Here, the lid C includes an opening / closing lever L and dials D (D1, D2, D3, and D4) for the above-described opening and closing.

[0036] In this example, the opening / closing lever L represents a knob for opening and closing the lid C when the key box is unlocked. In Fig. 4A, the opening / closing lever L has a mechanism that allows the user to easily remove the lid C by, for example, moving the knob in the direction of the arrow when the dial lock is released.

[0037] In this example, dial D has a function for locking / unlocking the key box. For example, when the four dials (D1, D2, D3, and D4 in FIG. 4A) assigned with the numbers 0 to 9 are rotated and aligned in a predetermined number (order), the key box 1 is unlocked.

[0038] As described above, the user can open the lid C and remove the key by operating the dial D and moving the knob of the opening / closing lever L. Also, by performing the reverse operation, the user can seal the key inside, that is, lock the key box. Next, the installation / removal of the latch 10 will be described.

[0039] 4B is a front view illustrating the inside of the main body 100 with the lid C removed. In this example, FIG. 4B shows the front of the key box 1 with the lid C in FIG. 4A removed and the opening O opened (exposed). Here, the attachment / detachment mechanism of the latch 10 will be described.

[0040] In this example, the main body 100 not only houses the key but also functions as a lock. Therefore, when locked, for example, the main body 100 and the first part 11 of the latch 10 engage with each other, preventing a malicious third party from removing the "hanging" from the object. In this example, a latch LL, which represents a locking mechanism that secures the latch 10 to the main body 100, is attached inside the main body 100. Here, the latch LL will be described.

[0041] In this example, the latch LL has a locking mechanism for engaging / disengaging with the shackle 10 or the first part 11 (particularly the locking portion 111). For example, the user can physically operate the latch LL to attach / detach the shackle 10. Furthermore, when the lid C is closed, i.e., when the dial is locked, the latch LL is housed in the internal space A of the main body 100, just like the key. Therefore, only someone who knows the dial number can physically access the latch LL. In other words, the key box 1 has a structure in which the shackle 10 cannot be removed from the main body 100 unless the dial lock on the lid C is released. Thus, by providing such a mechanism, the key box ensures the security of the lock. Note that a similar latch LL may also be provided in the second part 12 (not shown), or the locking portion 111 on the first part 11 may be the latch LL itself (not shown).

[0042] The above has described the general configuration of the key box 1. Next, an example of locking the key box 1 to an outdoor facility will be described.

[0043] FIG. 5 is a side view illustrating a comparison between the key box 1 and related art. In this example, the key box 1 represents the key box of the present invention, and the key box 9 represents a key box in the related art. In this example, similar to FIG. 2, FIG. 5 illustrates how various key boxes are locked to the fence 3. When locking the key box 1 in this example, the latch 10 is hooked onto the vertical lattice 31 and supported by the horizontal lattice 32a, similar to FIG. 2. However, because the angle between the first portion 11 and the third portion 13 of the latch 10 is an obtuse angle, the first portion 11 is fixed horizontally (parallel) to the fence 3 when viewed from the side, as shown in FIG. 5. Accordingly, the main body 100 and the lid C, which are horizontally engaged with the first portion 11, are also fixed horizontally.

[0044] On the other hand, in the key box 9, the latch 90 is fixed at an angle relative to the fence 3 when viewed from the side. At this time, the main body 900 of the key box 9 attached to the latch 90 is also fixed at an angle, just like the latch 90. In this example, assuming that the raindrops fall in the same direction, comparing the two key boxes, it can be seen that the proportion of the area of ​​the lid C of key box 1 exposed to raindrops is smaller than the proportion of the area of ​​the lid of key box 9 exposed to raindrops.

[0045] As described above, the key box 1 with the improved latch 10 can prevent rainwater from entering the opening and closing parts, dial parts, or gaps in the lid, compared to key boxes according to the related art. This prevents corrosion of the keys enclosed inside the key box and corrosion and damage to the key box itself, allowing the key box to be stored safely and securely even when stored outdoors.

[0046] 1-2. Modifications The present invention is not limited to the above-described embodiment, and various modifications are possible. Some modifications are described below. Two or more of the following items may be combined and applied.

[0047] (1) Key Box 1 The component configuration, material configuration, and functional configuration of the key box 1 are not limited to those exemplified in the embodiment. The key box 1 may have any component configuration, material configuration, and functional configuration as long as the required functions can be realized. For example, the components of the first portion 11, second portion 12, and third portion 13 constituting the latch 10 may be made of different materials or the same material. The second portion 12 may also have a locking portion 111, similar to the first portion 11. The lid C may also have a material and function that is highly waterproof and hydrophilic. Furthermore, the main body 100 of the key box 1 may not have the lid C, opening O, and / or internal space A in the first place.

[0048] (2) Latch 10 The latch 10 is not limited to the example shown in the embodiment. The latch 10 may have any component configuration, material configuration, and functional configuration as long as it can achieve the required function. Here, an example will be described in which the latch 10 is bent by, for example, a joint mechanism.

[0049] FIG. 6A is a top view illustrating a latch 10 having a joint J. In this example, FIG. 6A shows the key box 1 as viewed from above. In this example, the third portion 13 of the latch 10 is connected to the first portion 11 and the second portion 12 via the joint J, respectively. In this example, the joint J has a joint function similar to that used in robot arm technology. In this example, the joint refers to a mechanism that connects links (e.g., the first portion 11 and the third portion 13) and allows the third portion 13 to rotate around the rotation axis of the joint J relative to the first portion 11 (or vice versa). In this example, in FIG. 6A , the joints J of both the first portion 11 and the second portion 12 rotate simultaneously to adjust the angle of the joint J.

[0050] Figure 6B is a side view illustrating the latch 10 having the joint J. In this example, Figure 6B shows the key box 1 as viewed from the side. In this example, the dashed dotted lines in the figure represent a vertical line representing the center line of the first part 11 and a horizontal line perpendicular to this center line. The intersection of the vertical and horizontal lines represents the center of rotation (i.e., the rotation axis) at the joint J.

[0051] When the key box is viewed from the side, the joint J is bent relative to the first portion 11. The angle of the joint J, i.e., the angle between the third portion 13 and the first portion 11 when the key box is viewed from the side, can rotate within an obtuse angle range (greater than 90 degrees and less than 180 degrees). FIG. 6B illustrates how the angle of the joint J is changed from a wide obtuse angle to a narrow obtuse angle. This angle change is performed, for example, by the user's hand. The joint J is fixed so that the angle is maintained even when a certain amount of force is applied in the rotational direction. In other words, in a more optimal example, it is desirable to adjust the upper load limit of the joint so that the angle of the joint J can be changed manually while preventing the angle from changing (in a natural state) when the lock is locked.

[0052] 6B, the second part 12 is not shown because it overlaps with the first part 11 when viewed from the direction in the figure. In this example, the second part 12 is connected to the joint J in the same state as the first part 11 (not shown).

[0053] As described above, the latch 10 with the improved joint J allows the user to freely adjust the angle even when locked to an outdoor object. As a result, the key box 1 can prevent rainwater from entering the opening and closing parts, dial parts, or gaps in the lid, compared to key boxes according to the related art.

[0054] In this example, the rotation range of the joint of the latch 10 having the joint portion J does not have to be limited to the above-described obtuse angle range (greater than 90 degrees and less than 180 degrees). In this example, the joint portion J may be configured such that, when viewed from the side, the angle between the first portion 11 (second portion 12) and the third portion 13 is exactly 180 degrees, i.e., a straight line when viewed from the side. This allows the user to save space when storing the key box 1. Alternatively, when selling the key box 1, it is possible to reduce packaging materials (packaging), which is very convenient. Alternatively, the joint portion J may be configured such that, when viewed from the side, the angle between the first portion 11 (second portion 12) and the third portion 13 is 0 degrees, i.e., the key box is folded when viewed from the side. The key box may be stored or sold in this state.

[0055] As another modification, for example, the locking portion 111 of the first portion 11 (or the second portion 12) of the shackle 10 may have a lock gear. In this example, the lock gear comprises a locking mechanism in the locking portion 111 and also represents an adjustment mechanism for adjusting the length of the shackle 10 when locking it to an object. Here, the lock gear will be described.

[0056] FIG. 7 is a side view illustrating the latch 10 of the key box 1 according to a modified example. In this example, FIG. 7 shows the latch 10 of the key box 1 as viewed from the side. In this example, the lock gear LG is mounted, for example, on the locking unit 111 of the first section 11. When the latch 10 in FIG. 7 is in the second position, the lock gear LG represents a gear-shaped member provided on the locking unit 111. Note that the lock gear LG may be integral with the locking unit 111.

[0057] In this example, the lock gear LG can adjust the length of the shackle 10 when the shackle 10 is in the first position, i.e., when it is restrained by the main body. In this example, the length of the shackle 10 refers to, for example, the length in a direction parallel to the center line of the first portion 11 (or the second portion 12) (or simply the "vertical direction"). When the shackle 10 is in the first position in FIG. 7 , the lock gear LG can adjust the length of the shackle 10 to two levels, for example, a first length or a second length. This allows the length of the shackle 10 to be adjusted to a length corresponding to the outer diameter of the object, even if the object to be locked with the key box is a doorknob, for example. This prevents the shackle 10 from being easily removed from the object, thereby improving locking security. Furthermore, the shackle 10 can be attached to various objects, improving the operability of the key box. Note that the length adjustment of the shackle 10 by the lock gear LG is not limited to the two levels described above, and may be adjustable to any length. Furthermore, the change in length of the shackle 10 by the lock gear is performed, for example, before locking, and the length of the shackle 10 while locked is fixed and maintained at the length adjusted before locking.

[0058] Furthermore, as another modification, the shape of the latch 10 when viewed from the front of the key box may be processed in any manner. In the present embodiment, the latch 10 has been described as having a bendable structure when viewed from the side (when viewed from a line passing through the first hole H1 and the second hole H2 with the latch 10 fixed in the first position). However, when viewed in a direction perpendicular to the imaginary plane formed by the first portion 11 and the second portion 12, i.e., when viewed from the front of the key box, the shape of the latch 10 may be freely processed (bent) into various highly designed shapes, such as a heart shape, a star shape, or a cat shape.

[0059] FIG. 8 is a front view illustrating a latch 10 of a key box 1 according to a modified example. In this example, FIG. 8 shows the latch 10 of the key box 1 as viewed from the front. In this example, among the components constituting the latch 10, for example, the third portion 13 is processed into a heart shape. Note that, for ease of viewing, the boundary between the third portion 13 and the first portion 11 (second portion 12) is depicted in a simplified manner. Therefore, for example, by combining this with the latch 10 of the present embodiment, the third portion 13 may have a structure that bends when viewed from a line passing through the first hole H1 and the second hole H2 with the latch 10 fixed in the first position. As described above, this modified example makes the latch 10 more attractive to users, which can increase their desire to purchase it at the time of sale.

[0060] (3) Main Body 100 The main body 100 is not limited to the example shown in the embodiment. In this example, the main body 100 may be integrated with at least a portion of the first portion 11 or the second portion 12. Furthermore, the shape of the opening O or the capacity of the internal space A in the main body 100 is not limited, and the main body 100 may have a shape or capacity that can accommodate the shape of the key 2. Furthermore, the lid C may have any shape or opening / closing structure. For example, the opening / closing direction of the lid C is not limited to up, down, left, right, or diagonal, and may be any direction. In this example, the opening / closing mechanism of the lid C may be a rotational, sliding, or push mechanism, or may be a structure that is completely detachable from the main body.

[0061] (4) Dial D and Opening / Closing Lever L The dial D and the opening / closing lever L are not limited to those exemplified in the embodiment. In this example, the dial D or the opening / closing lever L may be installed in a location other than the lid C. Furthermore, the locking system does not have to be a dial system, and may be a push button system.

[0062] Furthermore, when the key box 1 is used outdoors, the administrator may operate the key box while wearing gloves (work gloves) for safety and convenience reasons. In this example, if the user keeps wearing gloves, the user may have difficulty locking and unlocking the key box. To solve this problem, in addition to the above-described embodiment, an improved configuration of the dial D may be introduced.

[0063] In this example, the dial D may be larger than a normal dial, or the distance between each dial may be increased. In this example, since a user may operate the dials while wearing gloves or work gloves, the dial size may be adjusted to accommodate the size of the user's fingers when wearing gloves. In this example, as shown in FIG. 4A , the vertical length of dial D (a collection of multiple dials D1 to D4) is preferably, for example, 3 cm to 5 cm. Furthermore, the horizontal length of dial D is preferably, for example, 2 cm to 4 cm. Note that in this example, "vertical" includes, for example, a direction perpendicular to the rotation direction of the multiple dials (D1 to D4) (as shown in FIG. 4A ). Furthermore, a mechanism may be provided that transmits a physical response (pressure or recoil) to the user's fingers through the gloves when operating dial D, or a mechanism that emits a mechanical operating sound may be implemented. As described above, the above example provides a key box 1 that is highly convenient for users, even when the key box is stored outdoors.

[0064] Furthermore, the combination lock itself may have, for example, a latch (different from the latch LL in FIG. 4B) for fastening the shackle 10, and may have a mechanism (not shown) that automatically locks the shackle 10 when the dial D is locked. This eliminates the need for the user to bother to manually operate the latch when locking / unlocking, improving convenience.

[0065] (5) Key 2 The key 2 is not limited to the one exemplified in the embodiment. In this example, the key 2 may be any type, and various uses and forms may be adopted as long as it can be stored in the internal space A of the main body 100, such as a property key, an equipment key, a spare key, or a card key. Furthermore, the object to be stored in the internal space A does not have to be a key in the first place, and may be various items such as valuables, tools, and documents.

[0066] 2. Second Embodiment In a key box, an external factor that can adversely affect valuables inside can be, for example, the intrusion of rainwater, etc. In this embodiment, an improved technology is provided that can prevent water from entering the inside of the key box.

[0067] 9 is a perspective view illustrating the appearance of the key box 21 when locked according to one embodiment. In this example, the key box 21 (or simply referred to as the key box) refers to a padlock-type key box that can be locked to an object such as a door, fence, or barrier while storing valuables such as keys inside.

[0068] Padlock key boxes are generally used outdoors and are useful for, for example, on-site management of keys used by rental property managers for viewings, temporary storage of car or motorcycle keys for outdoor leisure activities, and outdoor storage of small valuables.

[0069] When storing a padlocked key box outdoors, it is exposed to rain, wind, etc., so it is necessary to effectively protect the valuables inside from various environmental factors. Therefore, the present invention provides an improved technology that can prevent water from entering the key box.

[0070] The key box 21 has a main body 210 and a latch 220. In this example, the main body 210 represents the housing of the key box 21. The latch 220 is a metal fitting for hooking the key box onto an object (locking location) when locking.

[0071] The main body 210 has a first upper hole H1 and a second upper hole H2. The first upper hole H1 and the second upper hole H2 are holes for restraining the latch 220 to the main body 210. When the first upper hole H1 and the second upper hole H2 are not distinguished and are referred to collectively, they are simply referred to as the "upper holes." Details of the upper holes will be described later.

[0072] The main body 210 also has a lid C for closing an opening (not shown) through which the key is inserted and removed from the main body. The opening will be described later. The lid C is a member for transitioning the opening between a closed state and an open state. For example, after storing the key in the main body 210, the user can lock the latch 220 with the lid C closed. The position of the latch 220 at this time is referred to as the first position.

[0073] On the other hand, when the user wants to take out a key, for example, the user opens the cover C. In this example, the user can lock (or unlock) the cover C by operating a dial D attached to the front of the cover C.

[0074] The dial D is a member for locking the lid C that closes the opening when the latch 220 is fixed in the first position. The dial D includes a rotation mechanism. When the lid C is locked, the user can open the lid C by aligning the dial D with a preset number and depressing the open / close switch S.

[0075] The latch 220 is a U-shaped metal fitting composed of multiple members, a first insertion portion 221 and a second insertion portion 222. The shape of the latch 220 can basically be any shape, but it is desirable that the main body 210 be processed so that it is perpendicular to the ground when the key box main body is hung from an object. In Figure 9, the U-shaped portion of the latch 220 is shown as being bent.

[0076] The first insertion part 221 is a part that is inserted into the first upper hole (corresponding to the first part 11 in the first embodiment). In this example, the first insertion part 221 includes a locking part (not shown) for locking a padlock, and is locked by engaging with the main body 210 of the key box.

[0077] The second insertion portion 222 is a portion that is inserted into the second upper hole (corresponding to the second portion 12 in the first embodiment). In this example, the second insertion portion 222 is a portion that is positioned approximately parallel to the first insertion portion 221 and has the same function as the first insertion portion 221. Note that Figure 9 illustrates the key box with the latch 220 locked, and both or either the first insertion portion 221 and the second insertion portion 222 are engaged with the main body 210 of the key box.

[0078] In this example, when unlocking the padlock, the first insertion portion 221 is released from the main body 210, and the second insertion portion 222 rotates within the second upper hole H2, allowing it to be removed from (or attached to) the object. The position of the latch 220 at this time is referred to as the second position. When the latch 220 is in the second position, the user can open the lid C at will. Note that when there is no need to distinguish between the first insertion portion 221 and the second insertion portion 222 of the latch 220, they will simply be referred to as "insertion portions."

[0079] FIG. 10 is a diagram illustrating an overview of a key box 9 in the related art. In this example, the key box 9 represents a key box in the related art. A main body 91 of the key box 9 is provided with holes H91 and H92 for inserting latches. The figure shows the latch insertion portion 921 and second insertion portion 922 inserted into the holes H91 and H92, respectively. Note that because FIG. 10 is a simplified diagram, the lid attached to the main body 91 is not shown.

[0080] The internal space 990 is a space for storing keys and the like in the main body 91. In this example, the insertion portion 921 of the latch is inserted into the internal space 990 through the hole H91. The guide G is a member for guiding the insertion portion 921.

[0081] When the key box 9 is stored outdoors, if raindrops R fall in the direction shown in the figure, they may enter the internal space 990 through the gaps between the holes H91 and H92. In this case, the raindrops R may accumulate at the bottom of the internal space 990 and damage the keys or valuables. Therefore, the present invention provides a key box structure that solves these problems.

[0082] 11 is a perspective view illustrating the appearance of the key box 21 when open according to one embodiment. In this example, the key box 21 has an internal space 250, which is a space for storing the key 2, inside the main body 210. The internal space 250 is connected to an opening O, which is an entrance to the interior, and is a space formed by the opening O. The opening O refers to the outer edge of the entrance of the internal space 250 to the main body 210, i.e., the part that corresponds to the "rim."

[0083] In this example, the user can insert and remove the key 2 into the internal space 250 through this opening O. Note that when locking or unlocking the padlock (i.e., engaging or disengaging the main body 210 and the hasp 220), this is done based on a locking mechanism (not shown), such as a latch, provided in the internal space 250.

[0084] Here, the locking mechanism includes, for example, a mechanism for fixing the latch 220 in a position (an example of a first position) where it engages with the main body 210. More specifically, it is a mechanism in which the latch 220 and the main body 210 are engaged or disengaged via a latch (not shown) that can be operated only from the internal space 250. Details will be described later.

[0085] In this example, the main body 210 is provided with a lid C for closing the opening O, and when locking, the user can close the lid C after storing the key 2 in the main body 210 (or open the lid C when removing the key 2). The lid C is a member for opening and closing the key box, and can transition the opening O between a closed state and an open state.

[0086] As shown in Fig. 9, the user locks the lid C by operating the dial attached to the lid C. In other words, the lid C will not open unless the dial is set to a preset number, and the padlock cannot be unlocked unless the lid C is opened. This structure ensures security for the key box 21. Next, a structure for preventing water from entering the key box will be described.

[0087] Figure 12 is a cross-sectional view illustrating an example of the separation wall W of the key box 21. In this example, Figure 12 shows a plan view of the key box 21 cut in a direction perpendicular to the ground (not shown) when viewed from the front. Descriptions of the first upper hole H1, the second upper hole H2, the first insertion portion 221, the second insertion portion 222, and the internal space 250 will be omitted.

[0088] The accommodation space 201 and the accommodation space 202 are spaces for accommodating the corresponding insertion parts (i.e., the first insertion part 221 and the second insertion part 222) in the main body. The accommodation space 201 is an example of a first accommodation space, and the accommodation space 202 is an example of a second accommodation space. At this time, each insertion part is inserted into each upper hole.

[0089] The separation walls W1 and W2 are walls having outer wall surfaces that correspond to the outer walls of the interior space 250. The separation wall W1 is an example of a first separation wall, and the separation wall W2 is an example of a second separation wall. In this example, the surfaces F1 and F2 are the outer wall surfaces of the separation walls W1 and W2, respectively. In other words, these separation walls and outer wall surfaces provide a structure that separates each storage space from the interior space.

[0090] The lock space 300 is a space equipped with a locking mechanism that secures the latch 220 to the main body 210, i.e., that can be padlocked. In FIG. 12, the lock space 300 is arranged adjacent to (or shares a portion of) the storage space 201 in which the first insertion portion 221 is housed. The figure also shows, as an example, a structure in which the faces F1 and F2 correspond to the outer walls of the lock space 300. In this example, the lock space 300 is arranged near the upper hole, where water intrusion is a concern due to the key box structure. Therefore, it is desirable for each separation wall to separate at least a portion (or all) of each storage space from the lock space 300.

[0091] The locking mechanism is a mechanism for engaging with the first insertion portion 221, and can fix the latch 220 to the main body 210. Conversely, to remove the latch 220 from the main body 210, the latch LL can be operated when the cover C (not shown) is in the released state. Note that the locking mechanism may have any mechanism other than the operation method in the example described above.

[0092] The bottom holes E1 and E2 are holes provided at the bottom of each storage space and are located opposite the respective upper holes (i.e., below in FIG. 12 ). The bottom holes E1 are an example of a first bottom hole, and the bottom holes E2 are an example of a second bottom hole. Each storage space is connected to the outside of the main body 210 via the corresponding bottom hole.

[0093] When the key box 21 is used outdoors or in a locked state, rainwater and other water may seep in through the first upper hole H1 and the second upper hole H2. In this case, the separation walls W1 and W2 physically separate the internal space 250 from the spaces (e.g., the storage spaces 201 and 202) connected to the first upper hole H1 and the second upper hole H2, thereby preventing water from seeping into the internal space 250. Furthermore, the faces F1 and F2 function not only as the outer walls of the internal space 250 but also as the outer walls of the lock space 300, effectively preventing the infiltration, scattering, and inflow of rainwater. This water-resistant structure is maintained even when the lid C is open. Therefore, the above-described separation wall structure allows the storage space to be constantly separated from the internal space (or the storage space to be separated from the lock space), thereby protecting valuables stored inside the main body and the lock mechanism from water seepage.

[0094] If the amount of rainwater that has entered the storage space is small or if the water droplets themselves dry or evaporate, it is not a problem if the water is not drained from the storage space. On the other hand, the bottom holes E1 and E2 serve as drainage holes to automatically drain rainwater that has entered the storage space. Therefore, there is no need to drain water from the first upper hole H1 and the second upper hole H2, which is expected to prevent corrosion of the latch 220 and water from entering the lock space 300.

[0095] Figure 13 is a cross-sectional view illustrating the separation wall W of the key box 21 in another example. In this example, Figure 13 shows a cross-sectional view similar to Figure 12. Here, a structural example will be described in which the dial is attached directly to the main body 210 rather than to the lid.

[0096] In this case, the dial D is integrated with the locking mechanism, and a single mechanism can lock (or unlock) the padlock and close (or open) the lid. For example, a user can unlock the padlock and open the lid simultaneously by aligning the dial D with a preset number.

[0097] The cover lock CL is a member for fixing the lid (not shown) to the key box body, and is implemented in, for example, a locking mechanism. In this case, any mechanism may be used, but for example, the user can unlock the cover lock CL by aligning a dial D with a preset number, and then open the lid by pressing an open / close switch (not shown).

[0098] In addition to the route through which raindrops can enter through the first upper hole H1 and the second upper hole H2, rainwater may also enter the lock space 301 through the gap in the dial D. Therefore, for example, the storage space 201 and the lock space 301 may share at least a portion of the space. In this case, a separation wall W1 is provided as shown in the figure, spatially connecting the storage space 201 and the lock space 301. Based on this structure, even if water is allowed to enter the lock space 301, it can be drained directly into the storage space connected to the lock space. This reduces damage caused by water intrusion.

[0099] In a simpler model, only the internal space 250 needs to be separated from the other spaces by a separation wall, and the structure and shape of the separation wall may be modified in any way. As described above, the key box 21 can more effectively prevent water from entering the internal space 250, even in this case. Furthermore, even if water enters the lock space 301 through the dial D, rainwater can be effectively drained.

[0100] 2-2. Modifications The present invention is not limited to the above-described embodiment, and various modifications are possible. Some modifications are described below. Two or more of the following items may be combined and applied.

[0101] (1) Key Box 21 The components, materials, structure, and shape of the key box 21 are not limited to those exemplified in the embodiment. The key box 21 may have any configuration as long as it can achieve the required functions. For example, the main body 210 and the lid C may have a material and function that provides excellent waterproofing. In this example, a waterproof gasket may be provided in the opening O (or the lid C) of the internal space 250 where valuables and the like are kept. This ensures that the opening O and the lid C are in tight contact with each other, thereby ensuring waterproofing of the inside of the key box. Note that any material may be used for the waterproof gasket.

[0102] (2) Main Body 210 The main body 210 is not limited to the example shown in the embodiment. In this example, the main body 210 may have any structure that separates the storage space for the latch 220 connected to the upper hole from the internal space of the main body when rainwater seeps in through the upper hole. Furthermore, the components, material, structure, and shape of the separation wall may be any. For example, the separation wall may be made of a metal material such as aluminum, a material with a waterproof coating (water-repellent treatment), a plastic material such as polycarbonate, a rubber material such as silicone rubber, or a fiber material such as polyurethane-coated fabric. Alternatively, the outer wall surface may be waterproofed.

[0103] Furthermore, the main body 210 may be made of a material that is waterproof and has excellent electromagnetic shielding properties for the interior space. For example, the main body 210 and the lid C may be made of a metal material, a plastic composite material, a glass fiber material, a carbon fiber material, or a ceramic material. In this example, the main body 210 and the lid C may have an exterior that is shielded using a metal foil shield, a metal mesh shield, plating, paint shield, or a conductive polymer treatment including carbon nanotubes. This provides electromagnetic shielding to keys and other items enclosed in the interior space, thereby preventing physical access by malicious third parties.

[0104] The lid C may have any shape or opening / closing structure, and for example, the opening / closing direction of the lid C is not limited to up, down, left, right, or diagonal, and may be any direction. In this example, the opening / closing mechanism of the lid C may be a rotating, sliding, or push type, or may be a structure that allows it to be completely detached from the main body.

[0105] (3) Latch 220 The latch 220 is not limited to the example shown in the embodiment. The latch 220 may have any component, material, structure, and shape as long as it can achieve the required function. The latch 220 can be moved to a first position that holds the lid closed and a second position that opens the lid, but the movement of the latch 220 may be performed in any manner. The latch 220 may be detached from the main body 210. Furthermore, the latch 220 may be engaged with or disengaged from the locking mechanism by any structure.

[0106] As another modification, the shape of the latch 220 may be processed in any manner. In the present embodiment, the latch 220 has been described as having a bent structure when viewed horizontally of the key box 21, that is, when viewed from a line passing through the first upper hole and the second upper hole with the latch 220 fixed in the first position. However, the shape of the latch 220 may be any shape, such as a non-bent shape.

[0107] (4) Internal Space, Storage Space, and Lock Space The internal space, storage space, and lock space are not limited to those exemplified in the embodiment. In this example, the internal space may be configured to be isolated from other spaces by a separation wall, various components such as sensors may be installed, or the internal space may have a structure that separates or protects it from the external environment. Although the storage space has been described as a space for storing each insertion part, it may also have any other functions. For example, at least some of the functions of the lock mechanism may be implemented in the storage space. The lock space may be located anywhere in the main body 210 depending on the structure of the lock mechanism.

[0108] (5) Bottom Hole E The bottom hole E is not limited to the one exemplified in the embodiment. In this example, a plurality of bottom holes E may be provided, or the bottom hole E may be in a mesh shape. Furthermore, the bottom hole E may be provided with a lid or the like for freely draining water. For example, by opening and closing this lid only when draining water, it is possible to prevent dust and the like from entering from the outside during normal use.

[0109] (6) Dial D The dial D is not limited to the one exemplified in the embodiment. In this example, the dial D may be installed in a location other than the lid C. Furthermore, the locking system of the key box does not have to be a dial system, and may be a push button system or the like.

[0110] The dial D also has a rotation axis and a mechanism that allows it to rotate around the axis. The user rotates the dial D in one direction and the opposite direction around the axis to set a number (e.g., numbers 0 to 9) to a specific position. However, if rainwater or other dirt gets on the dial D, the user's hand may slip, making it difficult to properly control the rotation of the dial D. Therefore, a limit may be placed on the rotation angle of the dial D. That is, instead of the usual structure in which the dial D continues to rotate around the axis, a structure may be adopted in which the dial D cannot be rotated any further after rotating a predetermined angle in one direction (or the opposite direction). In this case, the maximum rotation angle of the dial D is preferably less than 360 degrees, or preferably less than 315 degrees, 270 degrees, 225 degrees, or 180 degrees. For this purpose, a rotation control mechanism using, for example, a stopper may be employed. This prevents the dial D from rotating too far and causing the user to make an incorrect operation.

[0111] 3. Modifications The present invention is not limited to the above-described embodiments, and various modifications are possible. For example, some of the features described in the first embodiment and some of the features described in the second embodiment may be combined and applied. For example, in a key box having the rotating latch 10 shown in FIG. 6A or the heart-shaped latch 10 shown in FIG. 8, the main body may be shielded. Any other combinations are possible.

[0112] 1...key box, 10...latch, 11...first part, 111...locking part, 12...second part, 13...third part, 100...main body, C...lid, O...opening, A...internal space, H1...first hole, H2...second hole, B...boundary, L...opening / closing lever, D (D1, D2, D3, and D4)...dial, J...joint part, LL...latch, 2...key, 3...fence, 31...vertical lattice, 32 (32a, 32b, and 32c)...horizontal lattice, 9...key -box, 90...latch, 900...main body, C9...lid, LG...lock gear, 21...key box, 210...main body, 220...latch, 221, 222...insertion section, 250...internal space, 201, 202...storage space, 300, 301...lock space, H...upper hole, E...bottom hole, W...separation wall, F...surface (outer wall surface), O...opening, C...lid, S...opening / closing switch, D...dial, L...latch, CL...cover lock, 2...key

Claims

1. A key box having: a main body having an opening, an internal space connected to the opening, and a first hole and a second hole, and storing keys inserted and removed through the opening in the internal space; a lid that transitions between a closed state and an open state of the opening; a latch having a first part that is inserted into the first hole, a second part that is inserted into the second hole, and a third part that connects to the first and second parts, and that moves to a first position that restrains the lid in the closed state and a second position that opens the lid, wherein when viewed from a line passing through the first and second holes with the latch fixed in the first position, the third part is bent relative to the first and second parts; and a locking mechanism that fixes the latch in the first position.

2. The key box according to claim 1, wherein when the latch is fixed in the first position and viewed from a line passing through the first hole and the second hole, the angle formed by the third portion and the first and second portions is an obtuse angle.

3. The key box according to claim 1, wherein the latch has joints between the first and third parts and between the second and third parts, and the joints are capable of rotating and bending relative to the first and second parts.

4. The key box according to claim 1, further comprising a dial for locking or unlocking the locking mechanism, wherein when a user operates the dial, the dial applies a reaction force corresponding to the user's operation.

5. The key box according to claim 4, wherein a mechanical operating sound is generated when the dial is turned.

6. The key box according to claim 1, which has multiple dials for locking or unlocking the locking mechanism, and the width of the multiple dials in the direction perpendicular to the direction of rotation is between 3 cm and 5 cm.

7. The key box according to claim 1, wherein the main body has: a first storage space that stores the first part; a second storage space that stores the second part; a first separation wall that separates the first storage space from the internal space; and a second separation wall that separates the second storage space from the internal space.

8. A key box as described in claim 7, having a first bottom hole located on the opposite side of the first hole and provided in the bottom of the first storage space, and a second bottom hole located on the opposite side of the second hole and provided in the bottom of the second storage space.

9. The key box of claim 7, further comprising a lock space with a locking mechanism that secures the latch in the first position, wherein the first separating wall separates the first storage space from the lock space, and the second separating wall separates the second storage space from the lock space.

10. The key box according to claim 7, further comprising a dial for locking the lid with the opening closed when the latch is fixed in the first position.

11. The key box according to claim 10, wherein the dial has a rotation mechanism that rotates in one direction and the opposite direction, and the rotation angle is less than 360 degrees.

12. The key box according to claim 7, wherein the main body is shielded so that the internal space is electromagnetically shielded when the lid is closing the opening.

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