JP2000093266A - Display case provided with louver door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display case provided with a louver door easily attachable/detachable with labor, minimal without deterioration of appearance in displaying display items by containing the louver door during display. SOLUTION: This device comprises a base box 1, a display rack 2 placed in the base box 1, a rail installed on the base box 1 or the display rack 2, and a louver door 3 supported by the rail to cover an upper part of the display rack 2, or the upper part and side parts of it, and contained in the base box 1. The display rack 2 can be contained inside the base box 1 by a rack elevation mechanism installed on the base box 1. The louver door 3 is opened/closed by a louver door opening/closing mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to crime prevention of a display case in which a display shelf is mounted on a base box.

[0002]

2. Description of the Related Art There are many display cases in which a box-shaped display shelf made of transparent glass is installed on a base box (waist) made of a steel plate. In addition, there are also display cases that have only a shelf plate so that customers can directly take in the exhibits, and display cases in which the waist (box) and the box-shaped display shelf are integrated. Exists. In this type of display case, expensive jewelry, precious metals, watches and the like are often displayed on the display, and it is necessary to prevent damage from being stolen at night or the like. For this reason,
Efforts have been made to move the display items to storage boxes such as safes every day, or to adopt a security structure in the display case itself.

[0003]

It takes time and effort to carry out and store a display item from a storage, and if the glass is made thicker for crime prevention, the cost and weight increase. SUMMARY OF THE INVENTION An object of the present invention is to provide a display case with a louver that can be easily attached and detached without any hassle and that can be accommodated at the time of display of an exhibit because the louver can be accommodated.

[0004]

According to the present invention, there is provided a display case with a door, a display box, a display shelf mounted on the display box, a rail attached to the display box or the display shelf, and It is supported and covers the upper part of the display shelf, or the upper part and the side, and comprises a door housed in the base box. The display shelf may be a flat box-shaped display shelf entirely or partially made of transparent glass, and has only a shelf board, so that the customer can take the display directly to the hand. May be used. Further, the display case may have a structure in which the waist (base box) and the box-shaped display shelf are integrated.

[0005]

According to the present invention, the display shelves can be covered with a simple operation of automatically or manually pulling out the armor from the side or inside of the cabinet after the exhibition time is over. The operation of accommodating in the same is similarly simple.
In addition, since the door is stored on the side or inside of the base box at the time of storage, it is possible to prevent the appearance of the display case or the display item from being deteriorated, and it is not necessary to take the display item into or out of a storage such as a safe.

[0006] According to the second aspect of the present invention, the display shelf can be accommodated in the base box by a shelf elevating mechanism mounted on the base box. In this configuration, the display shelf can be accommodated in the base box, so that the security function is high, and since the armor forms the top plate, there is an advantage that the structural strength can be increased.

According to a third aspect of the present invention, if the display shelf is provided with a sealing material for sealing a gap between the outer periphery of the display shelf and the upper opening in a state where the display shelf is set at a higher position, water drops are formed inside the base box. And dust can be prevented from entering. For this reason, the function of the device installed in the base box can be maintained for a long time. As described in claim 4, by automatically raising and lowering the display shelf so that it can be stored in the base box, the operability is improved and the commercial value is increased.

According to the fifth aspect of the present invention, when the armor is urged upward by the balancer, it is possible to achieve a reduction in operating force at the time of raising and an improvement in safety at the time of lowering. According to the configuration described in claim 6 or 7, since the door can be automatically opened and closed, the operation of storing and pulling out the door is facilitated. As described in the eighth aspect, when the casters are attached to the base box, there is an advantage that the movement is facilitated, and as described in the ninth aspect, by providing the caster elevating means, the stability at the time of installation is also improved.

[0009]

1 to 4 show a display case with a door according to an embodiment of the present invention. A base box 1 and a transparent, box-shaped display shelf mounted on the base box 1 are shown. 2 (see FIG. 4). The display shelf 2 may have a partially transparent box shape or may be formed of an exposed shelf board. A door 3 is attached to the base box 1 so as to be able to open and close in order to protect the items in the display shelf 2 from crimes or accidents such as theft.

The base box 1 is made of a steel plate, and has front, rear, left and right side wall plates 1.
It has a rectangular parallelepiped shape having A to 1D, a bottom plate 1E, and a top plate 1F having a rectangular top window (upper opening) 10 opened in the center. The top of the base box 1 is fully open at the top.
A structure in which F does not exist may be used. Inside the base box 1, an elevating table 40 (shown in FIG. 4) of the display shelf 2 having a rectangular plate shape and horizontally arranged facing the skylight 10 is arranged.

The elevating table 40 is moved up and down by a shelf elevating mechanism 4 (shown in FIG. 4) of a display shelf mounted inside the base box 1. The shelf elevating mechanism 4 sets the elevating platform 40 at a position where the upper surface 2A of the display shelf 2 is slightly lower than the skylight 10 when descending (see FIG. 1), and the display shelf 2 is completely accommodated in the base box 1. It is supposed to be. The display shelf 2 has a transparent box shape, and a shelf plate 21 (shown in FIG. 4) in which a glass plate is fitted into a horizontal glass frame fixed to the upper surface of a lift table 40, and a flat bottomless glass plate. And a lid 22 assembled in a box shape.

The elevator 40 and the shelf 21 may be the same body (the elevator 40 also serves as the shelf 21). Also,
The lid 22 may use an inclined or curved glass plate in the front part, or may be formed entirely of a spherical glass plate. In this embodiment, a fluorescent lamp (not shown) is attached between the shelf board 21 and the elevator 40 in a state where the fluorescent lamp is fastened to the elevator 40, and illuminates the inside of the display shelf 2 from below. It has become.

As shown in FIGS. 2 and 3, rails 31 having a U-shaped cross section are provided on the inner wall surfaces of the left and right side walls 1C and 1D of the base box 1.
Numerals 31 oppose each other and are fixed in an inverted L-shape. Both ends of the door 3 are slidably fitted and supported, and serve as a guide when the door 3 is raised and lowered. In this embodiment, when the louver 3 is housed (when the louver is opened), the front side wall plate 1A
It is arranged along the inner surface of.

The door 3 has an area slightly larger than the area of the skylight 10 and, as shown in FIGS.
32 are fastened. The balancer 32 has an urging spring 33 using a mainspring spring or a constant load spring mounted therein. A wire 35 is wound around the outer circumference of a rotating drum 34 urged in the rotation direction by the urging spring 33. It has a known structure attached. The ends of the wires 35 are connected to the left and right sides of the end member 36 of the door 3. The balancers 32, 32 have the effect of urging the door 3 upward to improve operability and safety.

The door 3 is opened and closed by a door opening and closing mechanism 5 shown in FIG. The shutter opening / closing mechanism 5 is connected to an output shaft of the servomotor 51 via a servomotor 51 and a joint 52 fixed in the left-right direction in the vicinity of the front side wall plate 1A at the bottom of the base box 1 and horizontally moved in the left-right direction. Drive shaft 53 arranged in
Having. Turning gear boxes 54, 54 are attached to both left and right ends of the drive shaft 53, and an opening adjusting mechanism 55 is integrally provided in the right turning gear box 54. A normal electric motor or a hydraulic motor may be used instead of the servo motor 51, and a plurality of motors may be used to simplify the transmission mechanism including the drive shaft and the turning gear box. is there.

To the turning gear boxes 54, 54, screw-driven moving devices 11, 11 are vertically connected. As shown in FIG. 5, the screw-driven moving device 11 includes a vertically arranged screw rod 12, a nut 13 screwed to the screw rod 12,
Bracket 14 and bracket 1 fastened to nut 13
4 comprises a case 16 with an axial slit 15 in which it moves. The bracket 14 is fastened to the lower end member 37 of the door 3.

When the switch of the control device (not shown) is turned on, the servo motor 51 rotates, and the screw rods 12 and 12 are driven to rotate.
4, 14 move up and down. As a result, the louver 3 rises and covers the skylight 10, and descends and is housed behind the front side wall plate 1 </ b> A. The upper limit and the lower limit of the shutter 3 are appropriately set by the opening adjustment mechanism 55.

The armor 3 has a structure that is wound into the base box 1 when housed, a structure in which the tip forms an inverted U-shape along the inner surface of the rear side wall plate 1B when ascending, and two front and rear or left and right doors. A structure that opens and closes the skylight 10 may be adopted, and the cost may be reduced by a structure that opens and closes the shutter 3 manually.

A shelf elevating mechanism 4 for elevating the display shelf 2
Is a servomotor 41 fastened to the lower part in the base box 1,
It consists of a transmission mechanism and a screw-driven moving device 17. The transmission mechanism includes a reduction gearbox 42 connected to the output shaft of the servomotor 41, and weft transmission shafts 43 connected to left and right sides of the reduction gearbox 42. At the tip of the weft transmission shaft 43, 43, a turning gear box 44,
A transmission transmission shaft 45 is connected to the turning gear box 44. The power transmission shafts 45, 45 are provided with two right and left turning gear boxes 46 at an intermediate portion and a distal end, respectively.

Each of the turning gear boxes 46 is connected to a total of four screw-driven moving devices 17 arranged vertically. The screw-driven moving device 17 has substantially the same structure as the screw-driven moving device 11 shown in FIG. When the servo motor 41 rotates, the bracket 18 of the shelf elevating mechanism 4 moves up or down, and the elevating table 40 whose four corners are supported by the bracket 18 moves up and down. The display shelf 2 moves up or down integrally with the elevator 40.

During the exhibition time, as shown in FIG.
Is open, the display shelf 2 is set on the top plate 1F of the base box 1, and the door 3 is housed vertically between the rails 31, 31 along the inner wall surface of the front side wall plate 1A (FIG. 1, (See FIG. 3). After the exhibition, the shelf elevating mechanism 4 is operated to
As shown in FIG. 2, the display shelf 2 is accommodated in the box 1 and then
As shown in the figure, the shutter 3 is automatically raised to cover the skylight 10. As a result, the display shelf 2 is hidden, the presence or absence of the display item cannot be determined, and the display item cannot be taken out unless the door 3 is destroyed.

In the above embodiment, the case where the display shelf 2 can be accommodated in the base box 1 has been described. However, the display rack 2 is fixed on the base box 1 by omitting the shelf elevating mechanism 4 for cost reduction. In this case, the present invention can be applied. In this case, the rails 31, 31 are arranged higher than the upper surface of the display shelf 2 fixed on the base box 1, and
Cover the upper and front and rear sides.

FIG. 6 shows a second embodiment of a display case with a door. In this embodiment, as shown in FIG.
Roller chain 60 and roller chain 6
The door is opened and closed by a shutter opening / closing mechanism 6 including a zero drive mechanism 61. Rails 31, 31 having a U-shaped cross section are fixed to the inner wall surfaces of the left and right side walls 1C, 1D of the base box 1 in an inverted L-shape, and both ends of the door 3 are slidably fitted and supported. I have. The corners of the rails 31, 31 are shown in FIG.
A / 4 arc-shaped curved rail member 3A is used so that the armor 3 can move smoothly on the corners of the rails 31, 31.

The roller chain 60 is a pair of left and right chains 62, 6 connecting the upper and lower ends on both the left and right sides of the door 3.
2, a total of four turning rollers 63 attached to the rear upper end and the rear lower end of the inner wall surfaces of the left and right side wall plates 1C and 1D of the base box 1, and tension rollers 64, 64 attached to the intermediate lower end. , And a sprocket 65, 65 installed at the front lower end.

The drive mechanism 61 includes a servomotor 66 installed on the right side of the front of the bottom plate 1E of the base box 1, a turning gearbox 67 connected to an output shaft of the servomotor 66, and a turning gearbox 67. It comprises shafts 68, 68 connecting the sprockets 65, 65. Drive mechanism 61
Is controlled by a control device that controls the power supply to the servomotor 66. When the servomotor 66 rotates, the sprockets 65, 65 rotate, and the chains 62, 62 are driven.

As shown in FIG. 8, in this embodiment, the armor door 3 is formed by extruding aluminum, and is formed by connecting a number of armor plates 3B having a hollow cross section and having a support in the middle. The armor plate 3B has a cylindrical edge 3C formed on one side,
A column-shaped recess 38 is provided on the other side, and the door 3 is rotatably fitted and connected to the column-shaped recess 38 with the column-shaped edge 3C. One end of a pin 39 is fitted into both ends of the cylindrical recess 38, and a pulley 30 is mounted on the other end of the pin 39, and the pulley 30 is fitted in rails 31 having a U-shaped cross section. Rolled. The armor plate 3B
May be formed by a manufacturing method such as forging, casting, or press molding.

In this embodiment, the shelf elevating mechanism 4 for the display shelf 2
As shown in FIG. 9, the transmission mechanism drives a pair of screw-driven moving devices 17 vertically attached to the center of the inner wall surfaces of the left and right side wall plates 1C and 1D of the base box 1. . The screw drive type moving device 17 includes a lifting nut 1G,
G is screwed, and the base of the T-shaped bracket 19 is fastened to the lifting nuts 1G and 1G. The top of the T-shaped bracket 19 is fastened to the center of the bottom surface on the left and right sides of the elevator 40. According to this configuration, the display shelf can be moved up and down by the two screw-driven moving devices 17, so that there is an advantage that the number of parts can be reduced.

Further, in this embodiment, as shown in FIG. 10, a rubber packing P is attached to the lower surface of the edge of the skylight 10, and as shown in FIG. At this time, the inside of the base box 1 is waterproofed and dust-proofed by being pressed against the outer periphery of the upper surface of the shelf board 21. Due to the sealing effect of the packing P, it is possible to prevent water and dust from adhering to the device provided inside the base box 1, so that the durability of the device is improved.

FIG. 11A shows a third example of the shutter door opening / closing mechanism 6.
An example will be described. In this embodiment, the door 3 is opened and closed by a combination of a wire 6A and a pulley 6B instead of the chain 62. The wire 6A is connected to both ends of the door 3 similarly to the chain 62, and is driven by a motor. (B) of FIG. 11 shows a fourth embodiment of the shutter opening and closing mechanism 6. In this embodiment, the door 3 is opened and closed by a combination of a toothed belt 6C and a gear 6D instead of the chain 62. Both ends of the toothed belt 6C are
As in the case of 2, it is connected to both ends of the door 3 and is driven by a motor. In addition, a geared cable can be used as the shutter opening / closing mechanism 6 in addition to the above.

FIG. 12 shows four casters 71 attached to the bottom of the base box 1 and caster elevating means 7 for elevating the casters 71. The lower portions of the front and rear left and right side wall plates 1A, 1B, 1C and 1D of the base box 1 are skirt-shaped frame portions extending downward from the bottom plate 1E. A total of four brackets 72 are fastened as a pair of upper and lower parts.

Each set of L-shaped brackets 72, 72 rotatably supports a vertically disposed screw rod 73, respectively. Above each set of brackets 72, each screw bar 73
A gear box 74 including a gear connected to the upper end of the gear box 74 is fixed. A geared cable 75 is inserted through the gearbox 74, and the geared cable 75 is connected to a cable drive lever mechanism 76 fastened to the rear wall 1B of the base box 1 via a turning gear (not shown). .

The lever 77 of the cable drive lever mechanism 76
Is rotated to drive the geared cable 75, and each screw rod 73 rotates. Two screw rods 7 on the front side
3 and 73, and the rear screw rods 73 and 73, the elevating member 7 on which the casters 71 and 71 are mounted on the lower surface.
Both ends of 8, 78 are screwed. As a result, the four casters 71 move up and down synchronously by the rotation of the lever 77.

When moving the display case, the casters 71 are lowered and pushed out below the box 1, and when the box 1 is set on the floor, the casters 71 are raised and the box 1
Housed inside. Thereby, the display case can be easily moved and stably installed. It should be noted that a chain and a toothed belt can be used in place of the geared cable 75 in the same manner as in the case of the armature opening / closing mechanism. However, when the geared cable 75 is used, the cable drive lever mechanism 76 is easily operated. There is an advantage that the geared cable 75 can be installed at a high position and routed by the turning gear.

FIG. 13 shows a second embodiment of the caster elevating means. In this embodiment, a manual disk 79 with a knurl is provided at the lower end of each screw bar 73, and the manual disk 79 with a knurl is rotated from a window 81 provided in the skirt frame 8 of the base box 1 to rotate each screw bar 73. The lifting member 78 is raised and lowered. FIG. 13A shows a movable state in which the casters 71 have been lowered and the base box 1 has been lifted,
FIG. 13B shows a state in which the casters 71 are raised and the skirt frame 8 of the base box 1 is installed on the floor.

FIGS. 14 and 15 show a third embodiment of the caster elevating means. In this embodiment, the casters 71
Is fastened to a lower surface of a base plate 82 rotatably attached to a lower portion of the base box 1. At the other end of the base plate 82,
A screw 84 screwed to a nut 83 fixed to the inner wall of the skirt frame 8 of the base box 1 is connected. When the manual disk 85 with a knurl provided at the lower end of the screw 84 is rotated, the screw 84 rotates. The casters 71 move up and down as shown in FIGS.

[Brief description of the drawings]

FIG. 1 is a transparent perspective view of a display case with a door with the door open.

FIG. 2 is a transparent perspective view of a display case with a door with the door bound.

FIG. 3 is a perspective view of a door and an opening / closing mechanism.

FIG. 4 is a perspective view of a display case with a door with the display shelf raised.

FIG. 5 is an assembly diagram of the screw drive type moving device.

FIG. 6 is a sectional view of a display case with a door of the second embodiment.

FIG. 7 is a perspective view of a main part of a door opening and closing mechanism according to a second embodiment.

FIG. 8 is a perspective view of a main part of the door of the second embodiment.

FIG. 9 is an assembly diagram of the screw-driven moving device according to the second embodiment.

FIG. 10 is a perspective view of a main part of the base box of the second embodiment.

FIG. 11 is a perspective view of a main part of a door opening and closing mechanism according to a third embodiment and a fourth embodiment.

FIG. 12 is a perspective view of casters and caster elevating means.

FIG. 13 is a front view of a second embodiment of the caster elevating means.

FIG. 14 is a perspective view of a third embodiment of the caster elevating means.

FIG. 15 is a front view of a third embodiment of the caster elevating means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit box 1F Top plate 2 Display shelf 3 Shutter door 4 Shelf elevating mechanism 5, 6 Shutter opening / closing mechanism 7 Caster elevating means 10 Skylight (upper opening) 11, 17 Screw drive type moving device 71 Caster

Claims (9)

[Claims] 1. A base box, an exhibition shelf mounted on the base box,
A rail attached to the base box or the display shelf, and a door supported by the rail and covering the upper side, or the upper side and the side of the display shelf in the closed state, and housed in the base box in the open state A display case with a door. 2. The display case with a door according to claim 1, wherein the base box has an upper opening, and a shelf elevating mechanism for moving the display shelf up and down from the upper opening into the base box is provided. The display case with a door, wherein the door covers the display shelf in a state where the display shelf is lowered into the base box. 3. The display case with a louver according to claim 2, wherein a sealing material is provided to seal a gap between an outer periphery of the display shelf and the upper opening in a state where the display shelf is set at a higher position. A special display case with a door. 4. The display case with a louver according to claim 2, wherein the shelf elevating mechanism is a motor for lifting and lowering, and a screw-driven moving device connected to the display shelf to move the display shelf up and down. And a transmission mechanism between the elevating motor and the screw-driven moving device, and a control mechanism for the elevating motor. 5. The display case with a louver according to claim 1, wherein a balancer for urging the louver upward in the base box, and a louver for moving the louver in the opening and closing direction. A display case with a shutter, which is equipped with a shutter opening / closing mechanism comprising a driving means. 6. The display case with a louver according to claim 5, wherein the louver drive means includes an opening / closing motor, a screw-driven moving device coupled to the louver to move the louver in the opening / closing direction, and A display case with a shutter, comprising: a transmission mechanism for transmitting between an opening / closing motor and the screw-driven moving device; and a control mechanism for the opening / closing motor. 7. The display case with a louver according to claim 1, wherein both ends of the louver in the moving direction side are connected to the base box, and a chain arranged in the base box. A display case with a door, characterized in that a door opening / closing mechanism comprising a cable body such as a wire, a toothed belt or the like and a cable body driving means for driving the cable body is provided. 8. The display case with a louver according to claim 1, wherein a caster is attached to the bottom of the base box. 9. The display case with a louver according to claim 8, wherein the casters have caster elevating means, and the casters are displaced upward by the caster elevating means. A display case with a louver, characterized by that the abutment touches the floor.