JP5288431B2 - key box - Google Patents

Description

  The present invention relates to a keybox for storing a key for unlocking / locking an entrance door of, for example, a gymnasium.

Conventionally, as this type of key box, for example, the one disclosed in Patent Document 1 has been proposed. The key box includes a storage case body provided with an opening only at least on the front surface, a lid body that can be opened and closed by a hinge on the storage case body to close the opening, and a padlock dial key provided on the lid body. The key is stored in the storage case by two lock mechanisms including a lock mechanism and a cylinder key lock mechanism.
JP 2002-364214 A

  However, in such a key box, since the two lock mechanisms for opening the lid are both exposed outside the storage case body, the key is clearly stored in the storage case body. It can be easily recognized by a third party who does not use the key normally. For example, each lock mechanism may be destroyed and the internal key may be taken out and used illegally. It is difficult to sufficiently increase the anti-theft effect. In addition, since the opening of the storage case body is simply covered with the lid body, it is difficult to obtain a sufficient waterproof effect on the lid body portion, for example, it is difficult to install outdoors, and in terms of versatility of installation. In addition to being inferior, it is difficult to sufficiently enhance the crime prevention effect of a gymnasium or the like in which the keys are used.

The present invention has been made in view of such circumstances, and its purpose is to reduce the influence of disturbances while being able to sufficiently enhance the anti-theft effect of the key by making the lid body a double structure , and The purpose is to provide a key box that can automatically detect a key and can be guarded by a security company . Another object of the present invention is to provide a key box that sufficiently enhances the waterproof effect and improves the versatility of installation in addition to the above object.

In order to achieve such an object, the invention according to claim 1 of the present invention includes a box body provided with a key storage portion therein, and a lid body that is openably and closably disposed at a front opening portion of the box body. And a detecting means for detecting a storage state of the key in the key storage portion, wherein the lid body includes an inner lid that closes the front opening of the key storage portion with a cylinder lock. The inner lid and the outer lid are integrally opened when the cylinder lock is unlocked , and the cylinder lock is configured to be closed with the outer lid closing the front opening of the box body. together are opened separately from when but not unlocked, the sensing means includes a proximity sensor capable of detecting the key, the key being housed in disposed around the proximity sensor the key housing portion mounting And a resin key mounting table.

In the invention according to claim 2, the inner lid and the outer lid are integrated by a magnetic force, the magnetic force acts when the cylinder lock is unlocked, and the magnetic force is exerted when the cylinder lock is not unlocked. It is released. According to a third aspect of the present invention, in the key storage portion, a waterproof wall that is bent upward is formed at least at the tip of the upper wall portion, and the waterproof wall is an inner lid when the inner lid is closed. It is comprised so that it may be located outside the upper wall part.

According to the first aspect of the present invention, the lid is configured with a double structure of an inner lid that closes the front opening of the key storage portion and an outer lid that closes the front opening of the box body. Rutotomoni, inner lid and since the outer lid is opened by the sometimes separately and sometimes cylinder lock is opened together the cylinder lock is unlocked is not unlocked, the cylinder lock provided on the inner lid outer lid It is possible to conceal the key and prevent theft of the key sufficiently, and to prevent foreign objects from entering the box body. The state can be obtained.

The detecting means includes a proximity sensor capable of detecting the key, and a key storing unit disposed around the proximity sensor. And a resin key mounting table on which the key stored in the unit is mounted. Presence / absence can be detected automatically and the resin key table prevents false detection of proximity sensors The crime prevention effect by a security company or the like can be sufficiently enhanced.

Further , according to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the inner lid and the outer lid are integrated by a magnetic force, the magnetic force acts normally, and the magnetic force is released in an emergency. Therefore, the inner lid outer lid by with simplifying the integrated structure of the inner lid and the outer lid by the use of a magnet, to release the magnetic force pulling the outer lid with a predetermined force in emergency situations, when the cylinder lock is unable to unlock be open to, it can be performed in a good operation of the emergency key box.

According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, A waterproof wall is formed at the tip of the upper wall of the key storage part, and this waterproof wall closes the inner lid. Since it is located outside the upper wall of the inner lid, the waterproof wall ensures the entry of water into the key compartment. The key box waterproof effect can be sufficiently enhanced, such as rain water, etc. You can install the key box without worrying about it and improve the versatility of the installation. Yes.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 6 show an embodiment of a key box according to the present invention. FIG. 1 is a perspective view thereof, FIG. 2 is a transverse sectional view, FIG. 3 is a longitudinal sectional view, and FIG. FIG. 5 is a cross-sectional view, FIG. 5 is a perspective view of an outer lid in an opened state, and FIG. 6 is a perspective view of an outer lid and an inner lid in an opened state.

  As shown in FIG. 1, the key box 1 has a thin stainless steel box body 2 having a substantially rectangular parallelepiped shape, and a stainless steel outer lid 3 is disposed in a front opening 2 a of the box body 2 so as to be opened and closed. Has been. The outer lid 3 is formed in a flat plate shape having a rectangular shape when viewed from the front. As shown in FIG. 5, the upper and lower shafts 5a and 5b are attached to the bearing member 4 provided at the right end of the front opening 2a of the cabinet body 2. A waterproof member such as a packing 13 (see FIG. 3) is fixed to substantially the entire area in the left-right width direction at the upper end of the back surface.

As shown in FIGS. 2, 3 and 6, the box body 2 has a predetermined inside by an upper wall portion 2b, a lower wall portion 2c, and left and right side wall portions 2d (the right side wall portion is not shown). A space (not shown) of the size is formed, and a solenoid (not shown) that constitutes the cylinder lock 8 is provided on the left end side of this space, and a partition wall 9 in which a substrate 7 is housed is provided. The space on the right side of the partition wall 9 is used as the key storage unit 10. As shown in FIG. 6, the upper wall portion 2b, the lower wall portion 2c, and the left wall portion 2d that form the space are provided to project forward by a predetermined dimension in a horizontal state, and the top end portion of the upper wall portion 2b is upward. In addition, a waterproof wall 2e is formed and a rib member 11 for reinforcement is welded and fixed to the outside of the upper wall portion 2b and the left wall portion 2d.

  A stainless steel inner lid 12 that forms the lid of the present invention together with the outer lid 3 is disposed in the front opening 10a of the key storage portion 10 so as to be openable and closable. As shown in FIGS. 5 and 6, the inner lid 12 has a lid portion 12a corresponding to the size of the space, and an upper and lower end portion of the lid portion 12a and a left end portion on the counter-rotating shaft side on the rear side. The upper wall portion 12b, the lower wall portion 12c, the left side wall portion 12d, and the like are bent. The right side of the inner lid 12 is pivotally supported by the cabinet body 2 via the upper and lower shafts 5a and 5b, so that the inner lid 12 can be opened and closed in the front opening 10a of the key storage unit 10. At this time, the upper and lower shafts 5a and 5b are rotatably supported by bearing portions provided on the upper and lower sides of the bearing member 4 welded and fixed to the cabinet body 2, and project from the upper and lower end portions of the inner lid 12. An E-ring 16 is inserted into the part.

Further, as shown in FIG. 6, the plate body 6 is fixed from the inner side of the inner lid 12 with screws or the like on the back surface of the right end portion which is the rotation axis side of the lid portion 12 a of the inner lid 12. Of the tip portions of the shafts 5a and 5b, for example, the lower end of the shaft 5a is in contact with the upper end of the plate member 6, and as will be described later, the shafts 5a and 5b are prevented from being broken, easy to assemble, and parts. The number of points can be reduced. Further, a magnet 17 shown in FIG. 5 is fixed to the surface on the left end side of the inner lid 12, and the magnet 17 is attracted to the back surface of the outer lid 3 in a normal time to be described later and the inner lid 12 and the outer lid 3. Are integrally opened and closed, and in an emergency described later, the outer lid 3 is pulled away from the closed inner lid 12 and the attracted state by the magnet 17 is released.

A detecting means 20 is disposed at the bottom of the key storage unit 10. The sensing means 20, as shown in FIGS. 3 and 4, Kagino table on which the proximity sensor 20a, the keys to be stored is placed in the key housing portion 10 around the proximity sensor 20a is mounted has 20b, etc., Kagino table 20b is formed as having a flange portion 20c at the front end by the resin molding. Then, when the key is placed on the proximity sensor 20a or the key placement table 20b, that is , when the key approaches the proximity sensor 20a, the proximity sensor 20a detects the key and outputs a predetermined signal (key presence / absence signal). It is supposed to be. The proximity sensor 20a is preferably a capacitance type in terms of cost and detection accuracy, but it is of course possible to use a high frequency oscillation type or a magnetic type .

  Next, an example of how to use the key box 1 configured as described above will be described. First, the key box 1 is installed together with a remote control (not shown) on an electric box near the entrance of the gymnasium or a predetermined wall surface, and the remote control is connected to a security company through a communication line. In this installed state, a space consisting of an upper wall portion 2b having a waterproof wall 2e, a left wall portion 2d, and the like is formed in the box body 2, and a key storage portion 10 is provided in the space, and an inner lid 12 and an outer lid In a state where the lid 3 is closed, the upper wall portion 12b of the inner lid 12 is positioned inside the waterproof wall 2e and is wrapped in the vertical direction.

  Moreover, the packing 13 provided on the back surface of the outer lid 3 is positioned above the waterproof wall 2e, and the flow of rainwater entering from above is branched by the packing 13. As a result, even if rainwater or the like enters the box body 2 from the upper surface of the box body 2 through the gap of the outer lid 3, the rainwater is prevented from entering the space by the waterproof wall 2e and the left and right side wall portions 2d. In such a state, it is possible to reliably prevent rainwater from adhering to the substrate 7 arranged in the space, rainwater from adhering to the key in the key storage unit 10, and the like.

When the gymnasium user wants to open the lock and enter the gymnasium, he / she operates the remote controller to input an opening signal to the key box 1. At this time, if the key box 1 is set in a warning state by the security company, the inner lid 12 is closed by the cylinder lock 8 and its opening is prohibited, but the warning state is released. Therefore, the cylinder lock 8 is in an open state, and the outer lid 3 rotates together with the inner lid 12 integrated with the magnet 17 via the shafts 5a and 5b. By the opening operation of the outer lid 3 and the inner lid 12, the front opening 10a of the key storage unit 10 of the cabinet body 2 is opened, and the state shown in FIG. 6 is obtained, and is stored in the key storage unit 10 in this state. The key is taken out by the user, and the gymnasium can be used by unlocking the gymnasium using this key.

When the use of the gymnasium is finished, the outer lid 3 and the inner lid 12 are integrated and rotated in the opening direction, the front opening 10a of the key storage portion 10 is opened and the key storage portion 10 is opened. The key is stored, and then the inner lid 12 and the outer lid 3 are closed. At this time, when the key is stored in the key storage unit 10, the proximity sensor 20 a captures a change in capacitance due to the approach of the key and outputs a key presence signal to the remote controller via the substrate 7. In addition, since the proximity sensor 20a is disposed at the center of the resin key mounting table 20b that hardly affects the capacitance, the proximity sensor 20a can reliably detect the approach of the metal key.

  When the key box 1 is set in a warning state, the cylinder lock 8 is operated so that the opening operation of the inner lid 12 is prohibited, and the outer lid 3 integrated with the inner lid 12 by the magnet 17 is used for the box. The front opening 2 of the main body 2 is closed. In this state, the outer lid 3 is fitted into the front opening 2a of the box body 2 and is substantially flush with the key box 1 when viewed from the outside by a third party. Is difficult to recognize, and entry of disturbances such as foreign matter into the box body 2a is prevented.

On the other hand, for example, when the cylinder lock 8 cannot be unlocked by the remote control or the communication line due to an abnormality in the security state (this is called an emergency), the user pulls the outer lid 3 with a predetermined force, The suction state of the inner lid 12 and the outer lid 3 by 17 is released, and only the outer lid 3 is opened as shown in FIG. Then, by unlocking the cylinder lock 8 of the inner lid 12 using an emergency cylinder key, the inner lid 12 is opened and the key in the key storage unit 10 can be taken out, and a gymnasium or the like can be used. become.

  Thus, in the key box 1 of the above embodiment, the lid disposed on the box body 2 has the inner lid 12 that closes the front opening 10 a of the key storage unit 10 and the front opening of the box body 2. Since the inner lid 12 and the outer lid 3 are integrated by the magnet 17 while being constituted by a double structure of the outer lid 3 that closes the portion 2a, the inner lid 12 and the outer lid 3 are integrated in a normal state. In an emergency, the outer lid 3 is opened separately from the inner lid 12. As a result, the cylinder lock 8 provided on the inner lid 12 can be concealed by the outer lid 3, and the antitheft effect of the key stored in the key storage portion 10 can be sufficiently enhanced, and the box body 2 It is possible to obtain a stable key storage state over a long period of time by reducing the influence of disturbance, such as suppressing the entry of foreign matter into the inside.

Further, by fixing the magnet 17 to the left end surface of the inner lid 12, the inner lid 12 and the outer lid 3 are integrated by the attracting force of the magnet 17, or the attracting force is released to release the inner lid 12 and the outer lid 3. Therefore, the integrated structure of the inner lid 12 and the outer lid 3 can be simplified and formed at a low cost, and the opening operation of the outer lid 3 in an emergency can be easily performed. The operability (usability) of the box 1 can be improved.

  In addition, a waterproof wall 2e is formed at the tip of the upper wall 2b of the space in the box body 2, and the waterproof wall 2e is outside (upward) from the upper wall 12b of the inner lid 12 when the inner lid 12 is closed. ) And the packing 13 is set to be positioned above the waterproof wall 2e, so that water enters the key storage portion 10 by the waterproof wall 2e while branching the flow of rainwater entering by the packing 13. The key box 1 can be installed without worrying about rainwater and the versatility of the installation can be improved.

Furthermore, a detection means 20 for detecting the presence or absence of a key in the key storage unit 10 is disposed around the proximity sensor 20a that captures the change in capacitance due to the approach of the key, and affects the capacitance by being arranged around the proximity sensor 20a. Therefore, the presence / absence of a metal key can be reliably detected by the proximity sensor 20a, and erroneous detection of the proximity sensor 20a can be prevented by the resin key mounting table 20b. The crime prevention effect by a security company or the like can be sufficiently enhanced.

  In the key box 1 of the above embodiment, the following incidental effects can be obtained. That is, the outer lid 3 and the inner lid 12 are rotatably supported by the upper and lower shafts 5a and 5b, and the plate body 6 also serving as reinforcement of the inner lid 12 and the like is fixed between the upper and lower shafts 5a and 5b. Therefore, the strength of the shafts 5a and 5b themselves can be increased to prevent their breakage, the number of parts of the shafts 5a and 5b can be reduced, or the assemblability can be improved. At the same time, the shafts 5a and 5b cannot be removed unless the outer lid 3 and the inner lid 12 are removed by the plate body 6, and the breakage prevention effect can be further enhanced, and the outer lid 3 and the inner lid 12 are opened and closed. It is possible to obtain a smooth opening / closing operation over a long period of time by suppressing the backlash.

  In the above-described embodiment, an indoor lamp such as an LED is disposed in the key storage portion 10 of the key box 1, and the indoor lamp is always lit (or lit when the inner lid 12 is opened). Thus, the inside of the key storage unit 10 may be illuminated so that the key can be easily inserted and removed even when the outside is dark. The configuration of each part of the above embodiment is an example. For example, the key box 1 is integrated with the remote control, the magnet 17 is fixed to the back of the outer lid 3, or an electromagnet is used as the magnet 17. The present invention can be changed as appropriate without departing from the scope of the inventions.

  The present invention is not limited to a key box for a gymnasium door, and can be applied to a key box for all doors having locks for various buildings and warehouses, for example.

The perspective view which shows one Embodiment of the key box concerning this invention Its cross-sectional view Same longitudinal section Plan view and sectional view of the detection means Perspective view of the outer lid opened The perspective view of the open state of the outer lid and the inner lid

DESCRIPTION OF SYMBOLS 1 ... Key box, 2 ... Box main body, 2a ... Front opening part, 2b ... Upper wall part, 2e ... Waterproof wall, 3 ... Outer cover, 4 ... Bearing member 5a, 5b ... shaft, 6 ... plate, 7 ... substrate, 8 ... cylinder lock, 9 ... partition wall, 10 ... key storage part, 10a ... front opening Part, 12 ... inner lid, 12a ... lid part, 12b ... upper wall part, 13 ... packing, 17 ... magnet, 20 ... detection means, 20a ... proximity sensor, 20b: Key placement table .

Claims (3)

A box main body provided with a key storage portion therein, a lid disposed to be openable and closable at a front opening portion of the box main body, and detection means for detecting a key storage state in the key storage portion. A key box with
The lid has a double structure of an inner lid that closes the front opening of the key storage portion with a cylinder lock and an outer lid that closes the front opening of the box body, and the inner lid and the outer lid However, when the cylinder lock is unlocked , it is opened as a unit, and when the cylinder lock is not unlocked, it is opened as a separate body, and the detection means is a proximity that can detect the key. A key box comprising: a sensor; and a resin key placing table on which a key placed around the proximity sensor and placed in the key storage unit is placed. Claim 1, wherein the inner lid and outer lid are integrated by a magnetic force, and wherein said at times force sometimes magnetic force cylinder lock is unlocked is that the cylinder lock acts not unlocked is released Key box as described in.   The key storage portion is formed such that a waterproof wall bent upward is formed at least at the tip of the upper wall portion, and the waterproof wall is positioned outside the upper wall portion of the inner lid when the inner lid is closed. The key box according to claim 1, wherein the key box is provided.

Images