JP2015229047A - Lifting/lowering and opening/closing type exhibition case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lifting/lowering and opening/closing type exhibition case capable of enlarging a ratio of an exhibition space relative to the exhibition case by reducing the height of a base by an appropriate installation of a lifting/lowering mechanism.SOLUTION: The lifting/lowering and opening/closing type exhibition case includes: a base unit having an exhibition floor 22; a case body 50 that has a side plate 51 consisting of a light-transmissive material and surrounding an exhibition space, and a top plate 52 covering an upper-end opening of the side plate 51, and that is configured to be able to separate from the base unit; and at least one lifting/lowering mechanism 60 that liftingly/loweringly moves the case body 50 between a descent position P1 where the case body is united with the base unit, and an ascent position P2 where the case body is separated from the base unit. The lifting/lowering mechanism 60 includes a movable part for liftingly/loweringly moving the case body 50, and a guide part 62 for surrounding the movable part. The guide part 62 is fixedly connected to the base unit inside the case body 50 and at least one plate of the side plate 51 and the top plate 52 of the case body 50. The guide part 62 and the movable part are stored in the case body 50 at the descent position P1 of the case body 50.

Description

  The present invention relates to a liftable opening / closing display case used in, for example, an art museum or a museum.

  As a conventional elevating / closing type display case used in an art museum or a museum, for example, in Patent Document 1, a base having an exhibition floor on the upper surface and an exhibition space formed above the exhibition floor are surrounded. A case body that can be moved up and down on the base and is visible from at least a part thereof, and the case body from a lowered position on the base surrounding the exhibition space to a raised position that opens the exhibition space. An exhibition case is described that includes an elevating mechanism that moves up and down. In order to carry out the work of carrying in / out the display items, maintenance, etc., such an exhibition case moves the case main body up and down relative to the base, so that the case main body is separated from the base and united with the base. Is configured to be possible.

  However, in the display case described in Patent Document 1, the lifting mechanism is installed in the base, and the upper ends of the four lifting rods constituting the lifting mechanism are connected to the holding frame which is the bottom portion of the case body. Therefore, in the closed state of the exhibition space when the case body is united with the base, it is necessary to form a storage space for accommodating the lifting mechanism in the base. The formation of the space inevitably increases the height of the base, and as a result, the entire display case becomes large. In addition, the display case described in Patent Document 1 has a problem that the effective area of the display floor is limited to an area within the holding frame because the case main body has the holding frame on the bottom surface portion.

JP-A 63-240807

  An object of the present invention is to provide an elevating / retractable display case capable of reducing the height of the base by appropriately arranging an elevating mechanism, thereby increasing the proportion of the exhibition space in the display case. It is to provide.

In order to achieve the above object, the gist of the present invention is as follows.
(1) A base unit that is installed on the floor and has an exhibition floor for displaying exhibits on the upper surface, and a translucent material that surrounds the exhibition space formed above the exhibition floor. A case body having a side plate and a top plate covering an upper end opening of the side plate and configured to be separable from the base unit; a lowered position where the case body is united with the base unit; and the base A lift opening and closing type display case comprising at least one lifting mechanism for moving up and down between a raised position separated from the base unit, wherein the lifting mechanism includes a movable part for moving the case body up and down; and A guide portion surrounding the movable portion, and the guide portion is fixedly connected to the inside of the case body and to the base unit and at least one of the side plate and the top plate of the case body, The guide part Preliminary said movable part, both in the lowered position of the case body, lifting retractable display case, characterized in that stored in the case body.

(2) The lifting / lowering openable / closable display case according to (1), wherein the lifting mechanism supports the case body only at two places.

(3) The guide portion has a telescope structure including a plurality of cylindrical members having different outer diameter dimensions, and has the largest outer diameter size among the plurality of cylindrical members constituting the guide portion. The cylindrical member is fixedly connected to the inside of the case body, and the tip of the smallest cylindrical member having the smallest outer diameter is fixedly connected to the base unit (1) ) Or the openable / closable display case described in (2).

(4) The above (1) to (3), wherein an illumination unit is provided above the case body, and power is supplied to the illumination unit through an internal space of the guide portion constituting the elevating mechanism. The elevating / closing type display case according to any one of the above.

(5) The lifting / lowering opening and closing according to any one of (1) to (4), wherein an opening is provided in the exhibition floor, and the lifting mechanism is fixedly connected to the base unit through the opening. Ceremony display case.

  According to the present invention, the elevating mechanism has a movable part for moving the case body up and down, and a guide part surrounding the movable part, the guide part being inside the case body and the base unit, The base plate is fixedly connected to at least one of the side plate and the top plate, and both the guide portion and the movable portion are stored in the case body at the lowered position where the case body is united with the base plate. As a result, it has become possible to provide an elevating and lowering display case that can increase the proportion of the display space in the display case.

FIG. 1 is a schematic perspective view showing the configuration of the main part of a typical illuminated liftable opening / closing display case according to the present invention, and shows a state when the case body is at the lowered position P1. FIG. 2 is a schematic perspective view showing the display case shown in FIG. 1 in a state where the case body is at the raised position P2. FIG. 3 is a cross-sectional view of the display case when it is cut so that the internal structure of one lifting mechanism constituting the display case in the state shown in FIG. 1 can be seen. 4 is a cross-sectional view of the display case when it is cut so that the internal structure of one lifting mechanism constituting the display case in the state shown in FIG. 2 can be seen. FIG. 5 is a partially enlarged cross-sectional view for explaining the sealing state of the abutting portion when the lifting mechanism fixedly connected to the case body and the base unit are combined in the display case in the state shown in FIG. is there. FIG. 6 is a cross-sectional view of the display case when it is cut so that the internal structure of another lifting mechanism constituting the display case of the present invention can be seen, and shows the state when the case body is at the lowered position P1. FIG. 7 is a cross-sectional view of the display case shown in FIG. 6 in a state where the case body is at the raised position P2. FIG. 8 is a cross-sectional view of the display case when it is cut so that the internal structure of another lifting mechanism constituting the display case of the present invention can be seen, and shows the state when the case body is at the lowered position P1. FIG. 9 is a cross-sectional view of the display case shown in FIG. 8 in a state where the case body is at the raised position P2. FIG. 10 is a view for explaining an arrangement state of the power supply device and the humidity control agent provided in the base unit constituting the display case shown in FIG. 1. FIG. 11 is a cross-sectional view of the display case of FIG. 1 taken along a plane including the extending direction of the lifting mechanism and the lighting unit. 12 (a) and 12 (b) show a storage case that can be used to store the humidity control agent and power supply device shown in FIG. 10, and FIG. 12 (a) is a perspective view. 12 (b) is a development view. FIG. 13 is a perspective view showing various embodiments of the storage case. FIG. 14 is a schematic perspective view of a display case according to another embodiment.

Next, embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 and FIG. 2 are schematic perspective views showing the configuration of the main part of a typical liftable openable / closable display case 10 according to the present invention. FIG. 1 shows the display state when the display space S1 is closed (the display is shown in the figure). 2 shows a state in which the exhibit can be carried in and out with the exhibition space open, and FIGS. 3 and 4 show one lifting mechanism 60 constituting the display case 10 shown in FIG. FIG. 3 is a cross-sectional view of the display case when it is cut so as to understand the internal structure, and FIG. 3 shows the position when the case body 50 is joined to the base unit 20 (the lowered position (lowermost position) P1 of the case body 50). 4 shows a case where the case body 50 is at a position when the case body 50 is separated from the base unit 20 (an upward position (uppermost position) P2 of the case body 50).

  1-4 is mainly composed of a base unit 20, a case body 50, and an elevating mechanism 60, and is installed in, for example, a museum or a museum. 10 (not shown) can be viewed (appreciated) through at least the side plate 51 of the side plate 51 and the top plate 52 of the display case 10.

  The illustrated base unit 20 is installed on the floor surface F, and has an exhibition floor 22 for displaying exhibits (not shown) on the upper surface portion 21. In addition, the illustrated base unit 20 is located on the floor F side and has a rectangular lower four-sided frame 24 in a plan view that constitutes the lower surface 23 and a plane that constitutes the upper surface 21 located on the exhibition floor 22 side. The upper four-sided frame 25 that is rectangular as viewed and four vertical connecting portions 26 that connect the four corners of the four-sided frames 24 and 25 to each other in the vertical direction, and 4 of the base unit 20 One side surface part is covered with the exterior panel 27 which can be opened and closed. It is preferable to use a high-strength material such as a steel material or an aluminum alloy material, for example, as the material of each of the four-sided frames 24 and 25 and the vertical connecting portion 26. Further, the base unit 20 has a power supply device 28 for supplying electric power to an electric device, for example, an elevating mechanism 60, as will be described later. A power storage case 29 for storing two power supply devices 28A and 28B for supplying power to each of the lighting units 80, or an exhibition space S1 formed when the case body 50 and the base unit 20 are combined. A means for adjusting the air conditioning, for example, a humidity control case 31 for storing the humidity control 30 for adjusting the humidity is fixedly connected (see FIGS. 10 and 11). Further, as shown in FIG. 3, casters 34 and height adjustment adjusters 35 are attached to the four corners of the lower surface of the base unit 20, and the display case 10 is attached to the floor surface F by this configuration. It can be installed by adjusting the height adjustment adjuster 35 after moving the caster 34 to a predetermined position. In addition, it is also possible to supply the electric power to the electric equipment directly from the outlet without providing the power supply device 28 inside the base unit 20.

The case body 50 surrounds the exhibition space S1 formed above the exhibition floor 22 when combined with the base unit 20, and is made of a translucent material such as a transparent acrylic plate or a high-transmittance glass plate. The side plate 51 and the top plate 52 covering the upper end opening of the side plate 51 are mainly configured so as to be separated from the base unit 20. In the embodiment of FIGS. 1 to 4, the side plate 51 shows a case where four flat glasses are integrally formed in a rectangular shape in plan view by a bonding method such as an adhesive or a welding method. However, it can be formed into various shapes depending on the display mode such as a circular shape and other polygonal shapes in plan view. The top plate 52 is preferably made of a translucent material so that the viewer can visually recognize (appreciate) the display from above the display case 10, but the display from the side plate 51 If the configuration that can be visually confirmed is acceptable, it may be configured of a non-translucent material, and the material can be changed as necessary.

  The elevating mechanism 60 is provided so that the case body 50 can be moved up and down between a lowered position P1 when the case body 50 is combined with the base unit 20 and a raised position P2 when separated. When the case body 50 is in the lowered position P1 (the state shown in FIG. 1), the viewer can view the exhibits displayed on the exhibition floor 22 from the outside of the display case 10, and When the case body 50 is in the raised position P <b> 2 (the state of FIG. 2), the exhibits are carried on the display floor 22 for display, or the exhibits displayed on the display floor 22 are displayed in the display case 10. Can be carried out from the outside.

  The illustrated display case shows a case in which an illumination unit 80 is formed on the case body (in FIG. 1, the top 52 of the case body) in order to illuminate the exhibits displayed in the exhibition space S1. In this illumination unit 80, for example, an LED, a fluorescent lamp, an organic EL, or the like is used as a light source. In particular, a plurality of LED illuminations 81 are arranged to emit point light, or the LED illuminations 81 are used. It is preferable that the light emitted from the light is incident on the light guide plate and surface-emitted through the light guide plate. Examples of the light guide plate include a material made of a material such as acrylic resin and the like, and a fine concavo-convex process formed on the entire upper surface and a light diffusion sheet for diffusing light on the lower surface. In addition, when the lighting unit 80 is arranged at the center position of the top plate 52, it is preferable to arrange two glass plates on both sides of the lighting unit as shown in FIG. An opening may be provided, and the lighting unit may be fitted into the opening to be integrated.

  The main feature of the configuration of the present invention is that the lifting mechanism is properly disposed. More specifically, the lifting mechanism moves the case body up and down, and the movable part. A guide portion surrounding the portion, and the guide portion is fixedly connected to the inside of the case body and to the base unit and at least one of the side plate and the top plate of the case body, And the movable part is housed in the case body at the lowered position of the case body. By adopting this configuration, the base can be lowered in height, and thus the display case can be used. It is possible to provide a liftable openable / closable display case capable of increasing the proportion of the display space occupied.

  The lifting mechanism 60 constituting the display case of the present invention is mainly composed of a movable part 61 and a guide part 62.

  The movable portion 61 is configured to push the case body 50 vertically upward to the upper position P2 with respect to the upper surface portion 21 of the base unit 20 and the original upper surface portion 21 of the base unit 20 while supporting the pushed case body 50. There is no particular limitation as long as it has a structure that includes a (restoration) mechanism for returning to the position (the lowered position P1).

The guide portion 62 is disposed so as to surround the movable portion 61, and both end portions 62 a and 62 b of the guide portion 62 are fixedly connected to the base unit 20 and the case body 50, respectively. Further, the guide part 62 has an internal space S <b> 2 for accommodating the movable part 61. In addition, in the case of an illuminated display case in which the case body 50 is further provided with an illumination unit 80 for illuminating the exhibits displayed on the exhibition floor, the power to the illumination unit 80 is provided in the internal space S2 of the guide portion 62. A wiring cable or cord 67 for supply or a contact member 68 is further accommodated. In addition, the guide portion 62 needs to have a telescopic configuration in order to follow the raising / lowering operation of the case body 50. In particular, the guide portion 62 is exposed between the base unit 20 and the case body 50 when the case body 50 is lifted. Even if an external force acts unexpectedly, it is preferable that the guide portion 62 is made of a reinforcing material having a rigidity that can protect the guide portion 62 so that the external force is not directly transmitted to the movable portion 61. As the guide part 62 having such a configuration, for example, a plurality of cylindrical members made of a high-strength material such as a steel material or an aluminum alloy material, having different outer diameter dimensions and slidable with each other, three in FIG. It is preferable that the tubular member 69a, 69b, 69c is constituted by a so-called telescope structure in which these tubular members 69a, 69b, 69c are slidably included.

  In the present invention, it is essential that the elevating mechanism 60 is disposed so as to be stored inside the case body 50 as shown in FIGS. Thus, the height of the stand unit 20 can be reduced and the exhibition space S1 can be increased.

Moreover, in order to ensure the airtightness of the exhibition space S1 when the case body 50 is combined with the base unit 20, the largest outer diameter dimension among the plurality of cylindrical members 69a, 69b, 69c constituting the guide portion 62. And the tip 69a1 of the largest cylindrical member 69a having a minimum diameter having the smallest outer diameter is fixedly connected to the inside of the case body 50 in a state where the tip 69a1 coincides with the opening end 50a of the case body 50 or a position in the vicinity thereof. The distal end 69c1 of the cylindrical member 69c is preferably fixedly connected to the base unit 20, particularly the upper surface portion 21. The tip 69c1 of the smallest cylindrical member 69c may be fixedly connected to the lower surface portion 23 of the base unit 20. Further, as shown in FIGS. 2 and 5, an airtight packing 70 made of rubber or the like is disposed over the entire circumference of the distal end portion 69c1 of the smallest cylindrical member 69c connected to the base unit 20, By adopting a configuration in which the pressing member 71 is attached over the entire circumference of the tip 69a1 of the largest cylindrical member 69a, the airtightness of the exhibition space S1 when combined can be further ensured at the lowering position P1 of the case body, Even if grease or the like used in the movable part 61 accommodated in the guide part 62 is heated by the motor 63 or the like to become volatile gas, volatile gas leaks from the internal space S2 of the guide part 62 into the exhibition space S1. The display can be prevented from deteriorating. In addition, an airtight packing 70 made of rubber or the like is disposed on a portion of the base unit 20 that is combined with the case body 50, and a pressing member 71 is attached to the opening end 50 a of the case body 50. Even if the temperature and humidity outside the body 50 change drastically, the temperature and humidity of the exhibition space S1 can be kept substantially constant. In addition, even if harmful gas is generated outside the case body 50, the exhibition space S1. Intrusion into the inside can be prevented. Furthermore, it is preferable that the pressing member 71 provided at the opening end 50a of the case body 50 and the tip end 69a1 of the largest cylindrical member 69a is integrally connected.

In the display case shown in FIGS. 1 and 5, the guide portion 62 and the case body 50 are fixedly connected to each other by the lower end side portion 62 a of the guide portion 62, the distal end portion 69 a 1 of the largest cylindrical member 69 a, and the pressing member. 71, and the case where the pressing member 71 and the case body 50 are filled and bonded with a caulking material 72 or the like is shown. However, the guide portion 62 (the largest cylindrical member 69a constituting the guide portion 62) is attached to the case. It may be directly fixed to the side plate 51 of the body 50, and the upper surface of the guide portion 62 may be fixed to the inner surface of the top plate. Furthermore, the movable part 61 can be connected to the guide part 62 by a known connecting means such as bolt fastening, or when the illumination unit 80 is provided, the movable part 61 can be bolted to the illumination unit 80. Here, the “telescope structure” in the guide portion 62 means that one cylindrical member having a small outer diameter dimension is slid in the axial direction of the guide portion within another cylindrical member having a large outer diameter dimension. By making it possible to move in and out, it means a structure that makes the length of the guide portion variable.

3 and 4 includes a motor 63 fixed to the base unit 20, a gear box 64 provided on the motor 63, and an upper part of the gear box 64. An electric linear actuator 66 having a telescoping spindle 65, and the motor 63 is actuated by power supply from the power supply device 28 to rotate the gear box 64 forward and backward. The case body 50 can be moved up and down by causing the spindle 65 to extend and contract in the vertical direction and transmitting the acting force accompanying the expansion and contraction operation to the case body 50 via the guide portion 62. . In the present invention, the movable portion 61 can be manually operated without using the motor 63.

  Furthermore, in the present invention, it is preferable to form an internal space S <b> 2 having an internal volume larger than the accommodation volume of the movable portion 61 in the guide portion 62 constituting the elevating mechanism 60. As a result, the wiring cable or cord 67 for supplying power from the power supply device 28 installed in the base unit 20 to the lighting unit 80 in the internal space S2 (FIGS. 3 and 4, and FIGS. 6 and 7). Or contact member 68 (see FIG. 8 and FIG. 9) can be provided, so that the connection pipe existing between the case body and the base unit like the conventional illuminated display case Arrangement is unnecessary, and the configuration of the apparatus can be simplified, and the work for carrying in and out the exhibits can be facilitated.

  As an electric power supply (wiring) means that uses the internal space S2 of the guide portion 62 shown in FIGS. 3 and 4, a cord or cable that can be stretched between both ends of the lifting mechanism 60, for example, a commercially available curl cord 67, is used. However, the present invention is not limited to this configuration. For example, as shown in FIGS. 6 and 7, the lifting mechanism when the two ends are at the rising position P2 of the case body (FIG. 7). It is also possible to perform wiring using a cord 67 or a cable longer than the total length of (see).

  Moreover, as another power supply means performed using the internal space S2 of the guide portion 62, for example, as shown in FIGS. 8 and 9, a rod-like shape fixed to the base unit 20 side in the internal space S2. Alternatively, a cylindrical contact 68 is provided, a spring contact 74 is provided at the upper end side position of the lifting mechanism 60, and the contacts 68 and 74 are brought into contact with each other at the lowered position P1 of the case body to conduct. . In the above embodiment, the configuration of the spring contact is shown as the contact. However, other contact configurations may be used as long as a predetermined contact pressure can be applied at the lowered position P1 of the case body 50. Good.

  Further, as another embodiment of the lifting mechanism 60, as shown in FIGS. 6 and 7, a configuration using two sprockets 75a and 75b and a chain 76 in the movable part can be mentioned. Specifically, the lifting mechanism 60 configured as described above includes two sprockets 75a and 75b arranged above and below, a chain 76 wound around these sprockets 75a and 75b, and a lower sprocket 75b. Two motors 77 are disposed on the inner side of the wound chain 76 at a position directly above, and chain clamped on both sides of the wound chain 76, and linearly move vertically in accordance with the movement of the chain. The lower sprocket 75b is rotated by changing the rotation direction of the driven motor 77 by a rotation angle conversion mechanism such as a bevel gear, which is composed of rod-shaped pressing members 78a and 78b. The chain 76 rotates between the two sprockets 75a and 75b, and the chain 76 rotates so that the two chain clamps are turned upside down. Go to, two pressing members 78a that is fixed to the chain clamp, by also moving accompanied 78b, it is possible to stretch the length of the movable portion 61. The motor 77 may be directly driven without using a gear by using a low-rotation, high-torque direct drive motor.

Further, the present invention has a configuration in which the case body 50 is supported by the two lifting mechanisms 60 and 60 as shown in FIG. 1 from the viewpoint of both simplification of the apparatus configuration and ease of the work of carrying in / out the exhibits. However, it is also possible to arrange three or more lifting mechanisms according to the size of the case body and the form of the display case. In addition, when the case body 50 is supported by the plurality of lifting mechanisms 60, 60, a portion where the case body 50 and the base 20 are combined, for example, the position of the hermetic packing 70 provided on the base 20 or the case body 50. By installing a position detection device such as a limit switch at the position of the open end 50a or the position of the tip 69a1 of the largest cylindrical member 69a of the guide portion 62 constituting the lifting mechanism 60, the position is lowered to a position where airtightness can be reliably obtained. It is preferable in that it can be performed. Further, it is preferable to attach means (for example, an encoder) for continuously detecting the position over the whole lifting process to each lifting mechanism 60 and perform synchronous control so that the case body 50 moves up and down while maintaining a parallel state. As a result, the directions of the holding member 71 disposed at the opening end 50a of the case body 50 and the lower end of the guide portion 62 (the distal end 69a1 of the largest cylindrical member 69a) simultaneously contact the airtight packing 70 on the base 20. Therefore, the hermetic packing 70 can be prevented from being twisted or wrinkled, so that the deterioration can be prevented and the hermeticity can be maintained for a long period of time.

  FIG. 10 is a view for explaining the internal structure of the base unit 20 constituting the display case shown in FIG. 1, in which a part of the display floor 22 is cut out to be inside the base unit 20. FIG. 11 shows the arrangement state of the humidity control agent 30 and the power supply device 28 housed therein, and FIG. 11 shows the arrangement state of the humidity control agent 30 and the power supply device 28 housed inside the base unit 20. It is.

  The display case 10 having the structure shown in FIGS. 10 and 11 includes a humidity control agent 30 that is an atmosphere adjusting element for adjusting the atmosphere of the exhibition space S1, and a secondary heat inside the base unit 20. There is a storage space for individually storing the power supply device 28 which is an electric device to be generated, and these storage spaces are partitioned and formed by storage cases 29 and 31 surrounded by plate-like members made of a metal material. The cases 29 and 31 are provided with ventilation means that can ventilate the storage space and the inside of the exhibition space S1 or the outside environment of the display case 10, for example, a vent hole and a vent hole.

  FIG. 12 (a) shows an embodiment of the storage case 32. First, a metal plate made of steel, aluminum alloy, or the like is processed into the shape shown in FIG. 12 (b). Next, the processed metal plate 33 is bent into a box shape shown in FIG. 12A and then welded to produce the storage case 32. The produced storage case 32 can also be used as the power supply storage case 29 and can also be used as the humidity control agent storage case 31. That is, the storage case 32 is used as the humidity control container storage case 31 in which the humidity control action by the humidity control agent 30 communicates only with the exhibition space S1 if the storage case 32 is arranged so that the opening is positioned on the upper surface. In addition, if it is arranged so that the opening is located on the lower surface, the heat generated secondaryly from the electric device such as the power supply device 28 can be released to the external environment of the display case 10. The power storage case 29 can be used. By integrating these storage cases 29 and 31 by welding or the like between the lower four-side frame 24 and the upper four-side frame 25 constituting the base unit 20, there is no need to arrange other reinforcing materials. The base unit 20 can be reinforced. The storage case 32 can be configured in various shapes as shown in FIGS.

  What has been described above is merely an example of an embodiment of the present invention, and various modifications can be made within the scope of the claims. For example, FIG. 1 shows a configuration in which an opening 38 is provided in the exhibition floor 22 and the elevating mechanism 60 is fixedly connected to the upper surface portion 21 of the base unit 20 through the opening 38 in order to maximize the area of the exhibition floor. As shown in FIG. 14, it is also possible to form the exhibition floor inside the two lifting mechanisms without providing an opening in the exhibition floor of the display case.

  According to the present invention, the elevating mechanism has a movable part for moving the case body up and down, and a guide part surrounding the movable part, and the guide part is inside the case body and the upper surface part of the base And is fixedly connected to at least one of the side plate and the top plate, and both the guide portion and the movable portion are stored in the case body at the lowered position where the case body is united with the base, The height of the base can be reduced, and as a result, it is possible to provide a liftable open / close display case that can increase the proportion of the display space in the display case.

DESCRIPTION OF SYMBOLS 10 Illuminated lifting opening / closing display case 20 Base unit 21 Upper surface part 22 Exhibition floor 23 Lower surface part 24 Lower side frame 25 Upper side frame 26 Vertical connection part 27 Exterior panel 28, 28A, 28B Power supply device
DESCRIPTION OF SYMBOLS 29 Power supply storage case 30 Conditioning agent 31 Conditioning agent storage case 32 Storage case 33 Metal plate 34 Caster 35 Height adjustment adjuster 36 Motor cable 37 Cable fixing bush 38 Opening 50 Case body 51 Side plate 52 Top plate 60 Lifting mechanism 61 Movable Part 62 guide part 63 motor 64 gear box 65 spindle 66 electric linear actuator 67 cable or cord for wiring 68 contact member 69a, 69b, 69c cylindrical member 70 airtight packing 71 pressing member 72 caulking material 73, 74 contact part 75a, 75b Sprocket 76 Chain 77 Motor 78a, 78b Press member 80 Illumination unit 81 LED illumination 82 Illumination cover 83 Illumination cable 84 Cable fixing bush P1 Case body lowering position (lowermost position)
P2 Case body ascending position (top position)
S1 Exhibition space S2 Interior space of the guide

Claims (5)

A base unit installed on the floor and having an exhibition floor for displaying exhibits on the upper surface;
A case body configured to have a side plate made of a translucent material surrounding the exhibition space formed above the exhibition floor, and a top plate that covers an upper end opening of the side plate, and is separable from the base unit. When,
At least one elevating mechanism for moving the case body up and down between a lowered position where the case body is united with the base unit and a raised position separated from the base unit;
In the lift opening and closing display case with
The elevating mechanism has a movable part for moving the case body up and down, and a guide part surrounding the movable part,
The guide portion is fixedly connected to the inside of the case body and to the base unit and at least one of the side plate and the top plate of the case body,
An elevating and lowering display case, wherein both the guide part and the movable part are stored in the case body at the lowered position of the case body.   The elevating and lowering display case according to claim 1, wherein the elevating mechanism supports the case body only at two places.   The guide portion has a telescope structure including a plurality of tubular members having different outer diameter dimensions, and the largest tubular member having the largest outer diameter size among the plurality of tubular members constituting the guide portion. The fixed end of the smallest cylindrical member having the smallest outer diameter is fixedly connected to the base unit and fixedly connected to the inside of the case body. Opening and closing openable display case as described. A lighting unit is provided above the case body,
The lift opening / closing type display case according to any one of claims 1 to 3, wherein power is supplied to the lighting unit through an internal space of the guide portion constituting the lifting mechanism.   5. The lift opening / closing type display case according to claim 1, wherein an opening is provided in the display floor, and the lifting mechanism is fixedly connected to the base unit through the opening.