JP3229522B2 - Display case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display case for displaying and displaying various exhibits such as works of art and precious metals.
In particular, the present invention relates to a display case having anti-theft property capable of displaying and storing an exhibit.

[0002]

2. Description of the Related Art A conventional general display case is constructed in consideration of how to easily display and display an exhibit, and does not consider anti-theft property. For this reason, at night or the like when there is no need for display, the display items are transferred from the display case to a storage box having anti-theft properties for storage, and the room in which the display cases are arranged has a structure having anti-theft properties.

[0003]

For this reason, in the prior art, when an exhibit is transferred from a display case to a storage box having anti-theft properties, it is necessary to use one day at the start and the end of the exhibition.
Times, it is necessary to carry out the work of transferring the exhibits, which is troublesome and time-consuming, extremely complicated, and requires extra labor to perform this work. If the room to be arranged has a structure having anti-theft property, there is a disadvantage that a large amount of cost is required.

As a solution to these disadvantages, there is already a fireproof display case disclosed in Japanese Patent Publication No. Hei 6-87819. In this fireproof display case, the display case is surrounded by a fireproof protective layer, and a movable rotatable fireproof layer rotating shaft is pivotally mounted on the fireproof layer to close the upper portion of the fireproof layer in a cloaking manner. A movable fire protection layer is provided, and when displaying, the movable fire protection layer is moved to a position where the display case is exposed and opened, and when the display is completed, the display case is lowered and the movable fire protection layer is moved. The display case is closed to cover the display case. However, since this fireproof display case is configured to open and conceal the display case by moving a pair of rotatable movable fireproof protective layers, there is a problem that the whole becomes large and the structure becomes complicated.

[0005] It is an object of the present invention to solve the above-mentioned inconveniences and to provide a display case with anti-theft property capable of displaying and displaying exhibits.

[0006]

In order to attain this object, a display case according to the present invention comprises a housing-like fire-resistant base having an open upper surface, and a base having a fire-resistant structure covering the upper surface of the opening. A transparent case body mounted thereon, and an opening / closing unit having a locking mechanism is provided at an appropriate position on a side surface of the base,
Inside the base, a fire-resistant shutter movable along a guide rail provided on the opening and the inner surface to open and close the upper surface of the opening and bendable in a moving direction, and a shutter for opening and closing the shutter A drive mechanism and an article to be mounted thereon, which are in an upper exhibition position when the shutter is open, and which can be moved up and down at a lower storage position when the shutter is closed, and which are moved up and down. A mounting table driving mechanism, a driving switch for driving the mounting table driving mechanism and the shutter driving mechanism, and a ground switch .
Abnormality detection to detect abnormal situations such as earthquakes, fires, and case body damage
Receiving the abnormality detection signal of the abnormality sensor
Driving the shutter drive mechanism and the mounting table drive mechanism.
And a control unit for controlling the movement of the shutter.
When the table is in the exhibition position,
When the sensor outputs a detection signal, the drive from the control unit
The shutter drive mechanism and the mounting table drive are controlled by a control signal.
Drive mechanism to move the table from the exhibition position to the storage position.
And the upper surface of the opening of the base is
It is configured to be closed .

[0007]

[Function] At the time of the exhibition, the shutter is opened, the mounting table on which the exhibit is placed is raised to the exhibition position, and the exhibit can be seen through the case body. The mounting table is lowered to the storage position, the upper surface of the opening of the base is closed by the shutter, and the locking mechanism of the opening / closing part is in a locked state, and the exhibit is stored in a closed space formed by the base and the shutter.

[0008] Since the base body and the shutter has a fire-resistant,
It will have fire resistance in addition to anti-theft properties. Further, the sheet catcher <br/> jitter is in the open state, when the mounting table is in the exhibition location, anomaly detection sensor is an earthquake, fire and detect the abnormal state such as the case body broken producing a detectable signal In addition, the mounting table is lowered to the storage position by the drive control signal from the control unit, and the upper surface of the opening of the base is closed by the shutter.
Therefore , even if a clerk or a clerk is not near the display case, it is possible to quickly respond to the occurrence of an abnormal situation and protect the display items.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment in which the present invention is applied to a display case for displaying jewelry such as watches and rings will be described in detail with reference to the accompanying drawings. 1 is a perspective view showing a state in which the case body is separated from the base body in a closed state of the shutter, FIG. 2 is a front view showing an internal state of the base body in a closed state of the shutter, and FIG. FIG. 4 is a side view of a main part showing a mounting table drive mechanism, FIG. 5 is an enlarged cross-sectional view of a base body partially showing a shutter drive mechanism, and FIG. FIG. 7 is an enlarged front view showing a linked state, FIG. 7 is a partially enlarged sectional view of a base showing a lock mechanism of a shutter, and FIG. 8 is a block diagram showing a control system.

As shown in FIG. 1, the display case 1 has a decorative plate 2b (see FIG. 5) adhered to the surface of a steel housing 2a having fire resistance and excellent breaking strength, and the upper surface thereof is opened. Opening 4
And a case body 3 having an open lower surface made of transparent glass placed on an inner edge 6 (see FIG. 5) of an upper frame 5 of the base 2 so as to cover the opening 4. And

The base 2 functions as a storage for exhibits, and is provided with opening and closing doors 7a and 7b on its back side (the side where clerks and clerks are located). A handle 8 connected to a lock mechanism using a well-known cylinder lock (not shown) as a lock mechanism, and a key insertion portion 9 for inserting and closing an opening / closing door lock key 62 (see FIG. 8) for locking and unlocking are provided. ing. At one end in the longitudinal direction of the opening 4, a wooden closing plate 10 for partially closing the opening 4 and concealing one end of the shutter retracted when the shutter is opened, which will be described later, is provided. I have. on the other hand,
The back surface of the case body 3 is provided with sliding doors 11a and 11b for putting in and out the display items.

As shown in FIGS. 2 and 3, a steel shutter 12 having fire resistance and excellent breaking strength is provided inside the base 2 along the opening 4 and the inner surface on the left side in FIG. The guide rails 13a and 13b (see FIG. 5) are provided so as to be movable.
Is configured to open and close. This shutter 12
As can be understood from FIG. 6, the insertion end 12a bent in a hook shape.
A large number of unit members having a slit 12c for inserting the insertion end 12a into the engagement space 12b are connected by inserting the insertion end 12a into the engagement space 12b through the slit 12c, and can be bent in the moving direction. A reinforcing plate 12d is fixed to each unit member so that one end thereof protrudes toward the insertion end 12a.
d increases the breaking strength. As shown in FIG. 7, the lock end of the shutter 12 has an S-shaped tip member 14 fixed to the insertion end 12a of the unit member, and further has an L-shaped locking member attached to the tip member 14. 15 is fixed.

Next, a shutter driving mechanism for driving the opening and closing of the shutter 12 will be described with reference to FIGS. 2, 3, 5 and 6. FIG. A steel plate is disposed on the lower surface of the closing plate 10, and steel supporting plates 16, 17 extend vertically corresponding to both ends of the steel plate. Are fixed to an upper fixed frame 18 and a lower fixed frame 19 provided along the upper and lower ends of the inner peripheral surface of the fixed frame. The support plate 1
The rotating shaft 20 rotatably supported at the upper ends of the shutters 6 and 17 has, at both ends thereof, gears 21 and 21 which protrude into gaps between the unit members of the shutter 12 and engage with the shutter 12.
2 is attached, and a driven gear 23 is attached from the center toward the gear 22.

A chain belt 25 is stretched between the driven gear 23 and the intermediate gear 24, and the rotating shaft 26 to which the intermediate gear 24 is attached is supported by the support plate 17 and the support plate 1
7, while being rotatably supported by a support plate 27 mounted on the rotary shaft 7, an intermediate gear 28 is mounted on the rotary shaft 26. A chain belt 31 is stretched over the intermediate gear 28 and a drive gear 30 attached to a drive shaft of a shutter drive motor 29. The shutter drive motor 29 is rotatable in forward and reverse directions, and is mounted on the support plate 27. The rotating shaft 32 rotatably supported in a free state at the lower end of each of the support plates 16 and 17 includes:
Guide rollers 33 and 34 for guiding the movement of shutter 12
Is attached. Reference numeral 36 denotes a stopper that regulates the movement range of the shutter 12.

Thus, the shutter drive motor 29
In a predetermined direction, the rotational driving force thereof is transmitted to the rotation shaft 20 via the respective gears 30, 28, 24, and 23, and the gears 21 and 22 are rotated in the predetermined direction, thereby causing the shutter 12 to rotate. It can move in the opening direction or the closing direction.

Next, a mounting table and a mounting table driving mechanism for driving the mounting table up and down will be described with reference to FIGS. At the center of the bottom surface corresponding to the opening 4 inside the base 2, a lower rectangular frame-shaped lower frame 37, an upper frame 38, and four columns 39 for supporting the upper frame 38.
A frame consisting of a, 39b, and 39c (only three are shown) is installed. Under the columns 39a, 39b, and 39c, four reinforcing plates 40a and 40b are connected to connect the columns 39a, 39b, and 39c. It is provided on the side surface (only two side surfaces are shown). Guide rails 41a and 41b (only one reinforcing plate 40a is shown) are fixed to the opposing reinforcing plate 40a and the lower frame 37 extending in the longitudinal direction of the machine frame.

The guide rails 41a and 41b have a C-shaped cross section. Guide rollers (not shown) of guide plates 43a and 43b fixed to the lifting frame 42 are movable on the guide rails 41a and 41b while rotating. It is supported by. The lifting frame 42 has four support legs 44a, 44b,
44c (only three of them are shown) are vertically provided.
A support frame 45 is fixed to the upper ends of a, 44b, and 44c. A mounting table 46 is fixed to the support frame 45, and the mounting table 46 is formed in a size corresponding to the opening 4 excluding the closing plate 10 which is the upper surface of the opening in which the shutter 12 closes.

As shown in FIG. 4, a fixing plate 47 is fixed to the reinforcing plate 40b, and a mounting table drive motor 48 is mounted on the fixing plate 47. The mounting table drive motor 48
Is reversibly rotatable. An arc-shaped rack 52 fixed to one end of a drive arm 51 swingably supported on the fixed plate 47 via a shaft 50 meshes with a pinion 49 attached to the drive shaft. , The other end of the drive arm 51,
It is slidably supported in a horizontal direction by a support 53 provided on the lifting frame 42. An auxiliary arm 54 is pivotally supported by the drive arm 51 via a shaft 55, and one end of the auxiliary arm 54 is horizontally slidably supported by a support 56 provided on the reinforcing plate 40b. The other end of the auxiliary arm 54 is horizontally slidably supported by a support 57 provided on the lifting frame 42.

By driving the mounting table drive motor 48 in a predetermined direction in this manner, its rotational driving force is transmitted to the rack 52 via the pinion 49 and the drive arm 51 is driven.
The auxiliary arm 54 also swings about the shaft 55 so that the lifting frame 42 can be moved up and down, and the mounting table 46 fixed to the support frame 45 can be moved up and down.

Next, a lock mechanism of the shutter 12 will be described with reference to FIG. A stopper 58 having a U-shaped cross section is fixed to the upper fixing frame 18 in the upper frame 5 portion of the base 2,
The distal end member 14 of the shutter 12 projects into the stopper 58 to perform positioning when the shutter 12 is closed. On the other hand, in this positioning state, in order to prevent the shutter 12 from moving leftward in FIG. 7, a lock rod 59 is provided so as to be able to protrude toward the tip member 14. It is configured to engage with a locking member 15 fixed to the distal end member 14 to prevent the shutter 12 from moving in the opening direction.

The lock rod 59 is a component of a lock mechanism using a general cylinder lock, and a shutter lock key 63 is inserted into a key insertion portion 60 embedded on one side surface of the base 2.
By inserting (see FIG. 8) and turning it in a predetermined direction, it is configured to protrude and lock or unlock the tip member 14. The key insertion section 60 is invisible from the outside by a circular blind plate 65 rotatably supported along the surface of the base 2 (see FIG. 1).

Although not shown, the base 2 has a built-in control circuit and a drive switch 66 (FIG. 8) which can be switched between an on-operation position and an off-operation position in a display position and a storage position. Is provided, and the control circuit is provided with the shutter 1 in this embodiment.
A control unit 61 (see FIG. 8) for driving and controlling the opening / closing operation of the second and the elevating operation of the mounting table 46 is provided. As shown in FIG. 8, the control unit 61 includes an ON / OFF signal of the drive switch 66, a lock signal or an unlock signal by the opening / closing door lock key 62 and the shutter lock key 63, and a fire, earthquake, case body 3 An abnormality detection signal from an abnormality detection sensor 64, which is an aggregate of three detection sensors for respectively detecting damage to the shutter, is input to the control unit 61, and the shutter drive motor 2 based on each of these input signals.
It is configured to output a drive control signal to the mounting table 9 and the mounting table drive motor 48.

When the door lock key 62 is unlocked to open the doors 7a and 7b and the shutter lock key 63 is unlocked, these unlock signals are sent to the control unit 61. For the first time, the power can be turned on by the power switch in the base 2 and the drive switch 6
6, the motors 29 and 48 can be driven. Further, when the shutter 12 is in the open state and the mounting table 46 is in the display position, that is, in the display state, the abnormality detection sensor 64 detects a fire, an earthquake,
When an abnormality detection signal is generated by detecting at least one of the damages to the mounting table, the control unit 61 receives the signal and drives the mounting table drive motor 48 to lower the mounting table 46, and further, the shutter driving motor 29, the opening 4 of the base 2 is closed by the shutter 12, and the abnormality detection sensor 64 detects the fire, earthquake, and case 3 regardless of the position of the shutter 12 and the mounting table 46. When at least one of the breaks is detected and an abnormality detection signal is issued, the control unit 61 receives the signal and activates the notification device 67 to communicate with a monitoring center such as a security company via a communication line such as a telephone line. Is configured to notify the occurrence of an abnormal situation.

The shutter drive motor 2 at the time of this abnormality
9 and the drive speed of the mounting table drive motor 48 are set to be faster than normal, and when the abnormality detection sensor 64 issues an abnormality detection signal when the motors 29 and 48 are driven in the normal state. The drive speed of each of the motors 29 and 48 is increased by a drive control signal of the control unit 61.

Since the present embodiment is constructed as described above, in order to change from the storage state shown in FIGS. 1 and 2 to the exhibition state shown in FIG. 3, the door lock key 62 is unlocked and the doors 7a and 7a are opened. After opening the shutter lock key 63 and opening the shutter lock key 63, the power switch in the base 2 is turned on, and the motor drive switch 66 is switched from the off position to the display position. Then, the control unit 61 issues a shutter release signal, and the shutter drive motor 29 is driven to rotate the respective gears 21 and 22 in a predetermined direction.
Is drawn into the base body 2, and when the drawn tip comes into contact with the stopper 36, the sensor is detected by a sensor (not shown),
The shutter drive motor 24 is stopped by the drive stop signal of the control unit 61.

Next, the control unit 61 issues a mounting table raising signal, and the mounting table drive motor 48 is driven to drive the pinion 49.
Is rotated in a predetermined direction, whereby the drive arm 51 swings clockwise in FIG. 4 about the shaft 50, while the auxiliary arm 54 swings counterclockwise in FIG. By raising the frame 42, the support frame 45
At the same time, the mounting table 46 at the storage position is raised. When the mounting table 46 rises to a predetermined display position at which the opening 4 is closed, the detection is detected by a sensor (not shown), the mounting table drive motor 48 stops, and the display state of FIG. 3 is set.
Here, the motor drive switch 66 is switched to the off position. In the state shown in FIG. 3, it is possible to see an exhibit (not shown) displayed and displayed on the mounting table 46 through the case body 3.

On the other hand, in order to change from the display state shown in FIG. 3 to the storage state shown in FIGS.
May be switched from the off position to the storage position. Then, the control unit 61 issues a mounting table lowering signal, the mounting table drive motor 48 is driven, and the pinion 49 is rotated in a predetermined direction, so that the drive arm 51 moves counterclockwise in FIG. The auxiliary arm 54 swings around the shaft 55 in the clockwise direction in FIG. 4 to lower the elevating frame 42 to lower the mounting table 46 together with the support frame 45. Then, when the mounting table 46 is lowered to a predetermined storage position, it is detected by a sensor (not shown), and the mounting table drive motor 48 stops.

Subsequently, the control section 61 issues a shutter closing signal, and the shutter drive motor 29 is driven to drive each gear 2.
1 and 22 rotate in a predetermined direction, the shutter 12 is sent out from the tip member 14 side to the opening 4, and when the tip member 14 comes into contact with the stopper 58, it is detected by a sensor (not shown). The drive stop signal causes the shutter drive motor 29 to stop, and the opening 4 is closed by the shutter 12 as shown in FIGS. Here, the motor drive switch 66 is turned to the off position, and the shutter lock key 63 is turned off.
After the locking rod 59 is projected and locked as shown in FIG. 7, the power switch in the base 2 is turned off, the doors 7a and 7b are closed, and the door lock key 62 is turned on. Is locked. As a result, the exhibit on the mounting table 46 is stored in a space closed by the base 2 and the shutter 12 having fire resistance and excellent breaking strength, and the exhibit is subjected to fire, earthquake, or theft. Can be protected from

In the exhibition state, the abnormality detection sensor 6
When the controller 4 detects at least one of a fire, an earthquake, and damage to the case body 3 and issues an abnormality detection signal, the controller 61
In response to this abnormality detection signal, the mounting table driving motor 48 is driven to lower the mounting table 46 in the same manner as described above, and then the shutter driving motor 29 is driven to open the opening 4 of the base 2. The shutter 12 is closed. Further, regardless of the display state or the storage state, the abnormality detection sensor 6
When the controller 4 detects at least one of a fire, an earthquake, and damage to the case body 3 and issues an abnormality detection signal, the controller 61
Receives the abnormality detection signal, activates the notification device 67,
The occurrence of an abnormal situation is reported to a monitoring center such as a security company via a communication line such as a telephone line.

The present invention is not limited to the above-described embodiment. For example, the shutter drive motor 29 and the mounting table drive motor 48 are connected to each other without depending on the control of the control unit 61. May be configured to be started and stopped individually by manual operation of a drive switch that controls on / off of the power supply. Also in this case, the sensor for detecting the completely closed position and the completely open position of the shutter 12 and the mounting table 4
It is preferable to provide a sensor for detecting the highest position, which is the display position, and the lowest position, which is the storage position, and stop the driving of the motors 29 and 48 by the detection signals of these sensors. Further, a drive mechanism shea Yatta 12,
The specific configuration of the lifting drive mechanism of the mounting table can be variously changed. Further, the lock mechanism of the shutter 12 is operated by an operation lever provided in the base 2 so that the lock pipe 5 is locked.
9 may be configured to be operated to protrude into the distal end member 14.

The abnormality detection sensor 64 for detecting breakage of the case body 3 is composed of a first sensing member made of an insulator containing an insulating fiber bundle having a large breaking elongation and a semiconductor containing a conductive fiber bundle having a small breaking elongation. The second sensing member is laminated on the base 2 and the inner wall of the shutter 12 of the display case 1 of the present application. This allows early detection of the destruction of the base 2 and the shutter 12 by a change in the resistance value of the second sensing member, and delays the progress of the destruction by the first sensing member.

The abnormality detection sensor 64 detects a fire, an earthquake,
It is constituted by one of the detection sensor for detecting any of the case body 3 of corruption not good. Furthermore, using the conventional mechanical security system, the security where the display case 1 is installed is set as a security target area, and when a suspicious person intrudes into the security area, an alarm is issued to the monitoring center of the security company. May be output to notify the observer who is monitoring the security area at the monitoring center of the intrusion of an intruder into the security area. As a result, the intruder can be confirmed at an early stage, and while the intruder is destroying the base 2 and the shutter 12, a security company security officer can arrive at the facility and prevent theft.

[0033]

As described above, according to the display case of the present invention, the display item can be seen through the case body in the display state in the same manner as the normal display case, while the display item is displayed at the end of the display. While lowering the mounting table on which the product is mounted,
The upper surface of the opening of the base is closed by the shutter, and the exhibit can be stored in a closed space formed by the shutter and the base having the opening / closing door provided with the locking mechanism, and can be protected from theft. Can be stored in a state of being bent along the inner side surface of the base, so that the base can be made compact without taking up space.

The base and the shutter have fire resistance.
Thus , the exhibits can be protected from fire. Furthermore <br/>, the abnormality detection sensor is provided, the shutter is in the open state, when the mounting table is in the exhibition location, anomaly detection sensor earthquake, detects a fire, the abnormal situation such as a case body damage issues a detection signal, after having lowered the mounting table driving control signal from the controller to the storage position, since it is configured to close the opening top surface of the substrate with shutter, clerk or clerk of display cases when an abnormal situation occurs near To respond quickly and protect your exhibits.

[Brief description of the drawings]

FIG. 1 is a perspective view of a state in which a case body is separated from a base in a closed state of a shutter.

FIG. 2 is a front view showing an internal state of the base body in a closed state of the shutter.

FIG. 3 is a front view showing the internal state of the base body when the shutter is open.

FIG. 4 is a side view of a main part showing a mounting table drive mechanism.

FIG. 5 is an enlarged cross-sectional view of a base body with a part showing a shutter driving mechanism omitted.

FIG. 6 is an enlarged front view showing a linked state of a shutter and a shutter driving mechanism.

FIG. 7 is a partially enlarged cross-sectional view of a base showing a locking mechanism of the shutter.

FIG. 8 is a block diagram showing a control system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display case 2 Base 3 Case body 4 Opening 7a, 7b Opening door 9,60 Key insertion part 12 Shutter 14 Tip member 15 Locking member 21,22 Gear 23 Follower gear 24,28 Intermediate gear 25,31 Chain belt 26, 32 rotating shaft 29 shutter drive motor 30 drive gear 33, 34 guide roller 36, 58 stopper 40a, 40b reinforcing plate 41a, 41b guide rail 42 lifting frame 43a, 43b guide plate 45 support frame 46 mounting table 48 mounting table drive motor 49 pinion REFERENCE SIGNS LIST 51 drive arm 52 rack 53, 56, 57 support 54 auxiliary arm 59 lock rod 61 control unit 62 door lock key 63 shutter lock key 64 abnormality detection sensor 66 motor drive switch

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Norio Muto 1-6-6 Moto-Akasaka, Minato-ku, Tokyo Inside Sogo Security Security Co., Ltd. (72) Inventor Yoichi Inoue 1-6-6 Moto-Akasaka, Minato-ku, Tokyo No. Sogo Security Service Co., Ltd. (72) Inventor Sada Konno 1-6-6 Moto-Akasaka, Minato-ku, Tokyo Sogo Security Service Co., Ltd. (56) References JP-A-61-265111 (JP, A) JP-A-63-226308 (JP, A) JP-A-63-240807 (JP, A) JP-A-61-63966 (JP, U) JP-A-6-59779 (JP, U) (58) Fields investigated (Int) .Cl. ⁷ , DB name) A47F 3/00 A47F 7/02 E06B 9/02

Claims (1)

(57) [Claims] 1. A housing-like fire-resistant base having an open upper surface, and a transparent case body mounted on the base so as to cover the upper surface of the opening, and a side surface of the base. An opening / closing unit having a locking mechanism is provided at an appropriate position. On the other hand, inside the base, a fire-resistant resiliently movable in a moving direction along a guide rail provided on the opening and the inner surface to open and close the upper surface of the opening. A shutter having a characteristic , a shutter driving mechanism for driving the shutter to open and close, and an article to be displayed. The shutter is in an upper display position when the shutter is open, and is in a lower storage position when the shutter is closed. A mounting table that can be moved up and down, a mounting table drive mechanism that moves the mounting table up and down, a drive switch that drives the mounting table drive mechanism and the shutter drive mechanism ,
An abnormality detection sensor that detects abnormal situations such as
Receiving the abnormality detection signal from the abnormality detection sensor
For driving and controlling the motor driving mechanism and the mounting table driving mechanism.
Wherein the shutter is in an open state,
Abnormality detection sensor detects when the table is in the exhibition position
When a signal is issued, a drive control signal from the control unit
Drive the shutter drive mechanism and the mounting table drive mechanism
And move the table from the exhibition position to the storage position.
The upper surface of the opening of the base is closed by the shutter.
An exhibition case characterized by the structure .