JP2001275795A - Case for exhibition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a case for the exhibition which has functions that hazardous substances which deteriorate displayed goods can be eliminated effectively, clean air is supplied, and humidity of the air can be adjusted easily in a space for the exhibition where the displayed goods are contained. SOLUTION: A passage 4 for circulating air, which links an exhibiting space S and outside the exhibiting space S, is provided outside the exhibiting space S of a case A1 for the exhibition. The case A1 for the exhibition is built in a manner that air inside the exhibiting space S is forced to circulate through the passage 4 for circulating air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display case suitably used for displaying an exhibit in an art museum or a museum.

[0002]

2. Description of the Related Art In an exhibition case used in an art museum or the like, usually, the flow of air from the outside air is shut off to accommodate and display an exhibit in a substantially closed exhibition space. This is because the outside air may contain chemicals and dust that are harmful to the exhibits, and if the exhibits are constantly exposed to the airflow, the exhibits may deteriorate or discolor. This is because there is fear. It is also important to maintain a constant humidity environment in the exhibition space in order to prevent deterioration and rust of the exhibits. From such an idea, it is customary to prevent the flow of air in the closed exhibition space even during the display of the exhibit in order to prevent the deterioration of the exhibit. Then, a humidifier is placed on the display surface on which the exhibits are placed to control the humidity in the exhibition space.

[0003]

However, in such a conventional display case, if the display space is closed after the display object is accommodated, the outside air containing harmful substances as described above is trapped in the display space. As a result, the present situation is that the deterioration of the exhibits is not substantially prevented. Especially in newly built museums, the air inside the building was trapped in air because it contained a large amount of formaldehyde and other harmful chemical substances such as acidic and alkaline factors and dust that are emitted from building materials. The adverse effects on the exhibits in the exhibition space are considered to be significant.

[0004] Further, if a humectant is placed on the display surface together with the exhibit, there is a problem that the appearance deteriorates. In order to solve such a problem, a punching board with a large number of through holes is applied to a part of the exhibition floor on which the exhibit is placed, and a humidity control etc. is arranged below it to adjust the humidity naturally. It is also conceivable to adopt a configuration in which this is performed. However, in this case, the appearance is deteriorated because through holes are visible on the exhibition surface, so that it is not possible to provide too many through holes in the punching board in order to maintain the appearance as good as possible, and as a result, the display object and If the wetting agent is far away and the number of through holes is small, there is a problem that it is difficult for the air in the exhibition space to contact the humidifying agent, and it is difficult to perform efficient humidity control.

[0005]

SUMMARY OF THE INVENTION In view of the above problems, the present invention effectively removes harmful substances that degrade an exhibit by forcibly creating an appropriate air flow in an exhibition space. The display case is designed to be able to supply clean air and perform effective humidity control.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The display case of the present invention has a display space capable of accommodating an exhibit, and is externally connected to the display space in a closed state. A circulation path for forcibly circulating the air is provided.

[0007] In the case of the display case having such a configuration, since the flow of air can be forcibly created in the closed exhibition space through the circulation path, for example, appropriate purifying and humidity control means can be provided on the circulation path. By providing the air conditioner, the air in the exhibition space can be easily purified or adjusted.

In particular, in order to forcibly extract the air in the exhibition space out of the exhibition space through the circulation path and preferably purify the air in the exhibition space, an air purification mechanism capable of purifying the air in the exhibition space is provided. It is preferable that the air purification mechanism be provided with the circulation path and a filter arranged on the circulation path. If equipped with an air purification mechanism of this type, dust and harmful substances can be removed by a filter to make clean air, and then returned to the exhibition space through the circulation path. Eliminate the danger of things being exposed to harmful substances,
The deterioration can be effectively prevented. In this case, a chemical filter capable of adsorbing harmful substances can be mentioned as a filter capable of extremely effectively removing chemical substances contained in air. Further, in order to easily replace a filter that has been deteriorated after being used for a certain period of time, it is preferable that the filter be a cartridge type filter and be detachably provided on the circulation path.

On the other hand, in order to efficiently adjust the humidity environment in the exhibition space, a humidity control mechanism capable of adjusting the humidity in the exhibition space is provided, and the humidity control mechanism is provided with the circulation path, It is effective to provide a humidity control means disposed on the circulation path. In this case, particularly useful humidity control means include a device provided with a humidity control agent that absorbs or releases moisture contained in air in accordance with a set humidity. Furthermore, in order to easily replace the dehumidifying agent that has deteriorated after being used for a certain period of time, it is preferable that the dehumidifying agent is a cartridge type and is detachably provided on the circulation path.

[0010] When there is little or gentle air flow, there is an air layer called a boundary air layer around the exhibit. In the display case, the boundary air layer causes the humidity of the exhibit itself. Environment such as (moisture content) is maintained. Therefore, it is not preferable to apply a strong air flow that peels off the boundary air layer to the exhibit, and therefore, in the display case having the above-described configuration, at least the air flow around the exhibit is increased by a predetermined speed. It is desirable to set the following.

Further, once the exhibit is housed, if the air in the exhibit space is once purified or conditioned, the environment is maintained substantially constant until the next exhibition space is opened, and the air is circulated at all times. Since it is not necessary, it is desirable to provide a timer switch for automatically stopping the air flow after a predetermined time has elapsed since the start of the air circulation. Note that the predetermined time may be appropriately determined according to the volume of the exhibition space or the like.

As a specific basic configuration of the display case, the case main body includes a case body surrounded by a glass plate or the like and having a display space set therein, and a top plate having at least a side plate and a display surface set on the upper surface side. In order to obtain a good appearance without a noticeable circulation path, arrange the circulation path inside the base and display the circulation path and the base. It is desirable to provide an opening for communicating with the space.

In particular, if the flow of forcedly circulated air directly hits an exhibit, it will cause deterioration of the exhibit, and in order to eliminate such causes as much as possible, air must be generated in the exhibition space. It is preferable that the case body is configured to flow along the inner surface side of the case body.

A slit provided on the display surface is one of the openings that communicates the exhibition space with the circulation path, which is inconspicuous to a viewer who views the display.

In addition, the opening which makes effective use of the original configuration of the display case without providing a special slit on the display surface is provided between the display surface and the glass surface of the case body positioned on the side of the display space. Is formed. In this case, in order to form a uniform flow of air in the exhibition space so that the environment in the exhibition space can be maintained substantially constant, the gap is a continuous groove extending along the glass surface. Is preferred. Furthermore, although there is a spatial restriction in properly connecting the circulation path to the narrow gap, even in such a case, the circulation path is preferably provided and the air flow is difficult to directly hit the exhibit. In
It is preferable that an air inlet and an air inlet of a circulation path communicating with the gap are opened in a direction facing the glass surface.

In the case of such a display case, inconveniences such as bending down and working inside the base portion, particularly when replacing a filter or a humidity control agent, are eliminated, and the working efficiency is improved. For this purpose, it is preferable to provide an openable and closable door body which can be opened to the outside with its inside facing upwards. In such a case, the efficiency of maintenance work can be improved by providing a filter or a humidity control agent at a location that is easily accessible from the outside when the door is opened, such as inside the door. In this case, it is effective that the circulation path is configured by a stretchable bellows-type duct element in order to prevent the circulation path from being affected by opening and closing of the door.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) Display case A of this embodiment
1 is used when exhibit B is exhibited in an art museum, a museum, etc., and as shown in FIG. And a case main body 2 surrounding the exhibition space S set in the above-mentioned manner, and an air purification mechanism X for circulating air in the exhibition space S inside the base unit 1 for purifying or adjusting humidity, and a humidity control. A mechanism Y is provided.

First, as shown in FIGS. 1 to 3, the base portion 1 is a hollow member formed by forming four side plates 11, a top plate 12, and a bottom plate 13 in a box shape. Exhibit B
And a grounding member such as an adjuster 16 or a caster if necessary. Also, one of the side plates 11
The lower end of the sheet is connected to the bottom plate 13 by a hinge (not shown) to form an openable and closable door 11a. The base 1
Inside the case body 2 when the exhibit B is taken in and out.
An elevating mechanism or the like for elevating and lowering the exhibition space S can be arranged as required. And the door body 11
The operation unit 3 such as the elevating mechanism of the case main body 2 and the lighting fixtures in the exhibition space S is provided inside the inside of a, and the operation unit 3 is exposed to the outside as the door 11a is opened. Operable from above.

On the other hand, the case main body 2 is
And four glass plates 21 erected along the periphery of the glass plate 22 and a glass plate 22 continuous with the upper end of each of the glass plates 21 in a substantially horizontal state.
The space surrounded with the display surface 12a is referred to as an exhibition space S. Although not shown, a lighting fixture or the like can be arranged in the case body 2.

As shown in FIGS. 2 and 3, the air purifying mechanism X provided inside the base 1 includes an intake duct element 41 for taking in the air in the exhibition space S, and an intake duct element 41 for taking in the air. A fan 43 attached to the end portion 41b of the duct element 41 and electrically driven, a chemical filter 44 provided on a side to which air is sent through the fan 43, and air purified through the chemical filter 44 are supplied to the exhibition space S.
And an air circulation duct element 42 which returns from the air supply duct element 42 to the air supply duct element 42.
And

The intake duct element 41 and the air supply duct element 42 are both bellows-type resin ducts that can be expanded and contracted and flexibly deformed.
In order to communicate the first and second ducts 41 and 42 with the exhibition space S, the top plate 12 of the base 1 is provided with a pair of slits, each having a width of about 3 to 4 mm, as openings. As the intake port 14 and the air supply port 15,
The intake duct element 4 is connected to the intake port 14 and the air supply port 15.
1 and the end 4 of the air supply duct element 42
2b is attached from below. Also, the fan 43
The operation is automatically stopped when driven for a predetermined time by a timer switch (not shown). As shown in FIG.
The operation unit 3 is mounted on the operation unit 3 so as to be operable from above.

As shown in FIGS. 2 and 3, the chemical filter 44 is capable of adsorbing most harmful chemical substances and dust contained in the air and decomposing a part thereof. A material obtained by processing fibrous activated carbon into a felt shape (for example, a product name “Libenos air purification filter” manufactured by Osaka Gas Chemical Co., Ltd.) is used. Thus, the circulation path 4 is connected to the end portion 41 of the intake duct element 41.
b and a part of the operation unit 3 while maintaining a sealed state between the air supply duct element 42 and the starting end 42 a of the air supply duct element 42.
It is detachably attached to a filter attachment portion 31 set at a portion exposed upward with the 1a opened. The chemical filter 44 is housed in a cartridge, and the cartridge can be attached to and detached from the filter mounting portion 31 together.

Further, on the circulation path 4, a humidity control means Ya for adjusting the humidity of the air in the exhibition space S is provided. Specifically, the humidity control means Ya is connected to the circulation path 4
Is shared with the air purification mechanism X to constitute a humidity control mechanism Y. As shown in FIGS. 2 and 3, moisture is absorbed or released at a humidity (for example, 50% or the like) corresponding to the exhibit B. And a casing 5 containing a humidifying agent capable of being stored therein. The cartridge 5 is provided with the chemical filter 44 and the starting end 42 a of the air supply duct element 42.
Between the humidifier mounting portion 32 provided on the operation portion 3
It is detachably built in. The air purification mechanism X and the humidity control mechanism Y configured as described above are kept in a sealed state including the exhibition space S.

Here, the procedure for purifying the air in the exhibition space S and controlling the humidity will be described. After the exhibit B is accommodated in the exhibition space S, the case body 2 is closed so that the exhibition space S is sealed. The door 11a of the base 1 is opened as shown in FIG. 1 (imaginary line) and FIG. As the door 11a opens and closes, the duct elements 41 and 42 expand and contract and flexibly deform, and the closed state of the circulation path 4 is maintained. Then, a timer switch is set to a time (for example, 1.5 hours) corresponding to the volume of the exhibition space S, the door 11a is closed, the fan 43 is driven, and the air in the exhibition space S is forcibly circulated. . In the meantime, as shown by arrows in FIG. 2, harmful substances and dust are removed from the air sucked through the air inlet 14 and the air intake duct element 41, and the humidity is further adjusted by a humidity control agent. In this state, the air is sent to the exhibition space S via the air supply duct element 42 and the air supply port 15 as clean air. In addition, around the exhibit B, the exhibit B
Thin boundary air layer Ba protecting environment such as own humidity
(Shown in phantom lines in FIG. 2), this boundary air layer B
at least where the air delivered to the exhibit B hits, the speed of the air is, for example, 10
The driving force of the fan 43 is set to be cm / sec. Thereafter, when the fan 43 stops for the set time, the air in the exhibition space S is kept clean and at a constant humidity until the exhibition space S is opened next time by exchanging the exhibits B or the like. When the chemical filter 44 or the humidifier deteriorates or needs to be replaced with one corresponding to the property of the exhibit B, the door 11a is opened and the chemical filter 44 with the cartridge is removed from the filter mounting portion 31 together with the cartridge. The humectant is supplied from the humidifier mounting portion 32 to the cartridge 5.
The replacement work is performed from above by removing the entire unit.

In the display case A1 of the present embodiment having the above-described configuration, the air purification mechanism X provided outside the exhibition space S is communicated with the exhibition space S in a closed state to constitute the air purification mechanism X. Since the air forcedly circulated through the circulation path 4 is configured to be cleaned by the chemical filter 44 serving as a filter, dust and harmful substances contained in the air in the exhibition space S are removed, and the air in the exhibition space S is removed. The supply of clean air can be efficiently performed, and the deterioration of the exhibit B can be effectively prevented.

In particular, since the flow of the air is set to a speed lower than the speed at which the boundary air layer Ba existing around the exhibit B is not peeled off, the boundary air layer is generated by the air sent to the exhibition space S. Ba is not broken, the environment such as the humidity around the exhibit B is maintained, and the storage state can be improved.

Further, since the humidity control means Ya is provided on the circulation path 4 to constitute the humidity control mechanism Y, the moisture contained in the air can be forcibly and efficiently adjusted simultaneously with the cleaning of the air. it can. Since the humidity control means Ya is provided with a humidity control agent for absorbing or releasing moisture in the air in accordance with the set humidity, the humidity can be easily and effectively adjusted without providing large-scale equipment. be able to.

Further, since the above-described chemical filter 44 is used as a filter, harmful substances and dust can be removed quickly and effectively.

Further, since such a chemical filter 44 and a humidity control agent are both of a cartridge type and can be attached to and detached from the circulation path 4, if they are deteriorated after being used for a predetermined period, they can be easily obtained. Can be replaced.

The air purification mechanism X has a fan 4
Since the timer switch for stopping the air conditioner 3 after the elapse of the predetermined time is provided, there is no waste in forcibly circulating the air at all times, and the environment in the exhibition space S can be maintained substantially constant at low cost.

Further, the display case A1 of the present embodiment is of a type composed of a case main body 2 and a base portion 1 supporting the case main body 2 and arranged in an island shape. And the humidity control mechanism Y are stored, and the exhibition space S and the circulation path 4 are stored.
Since the intake port 14 and the air supply port 15 formed of thin slits communicating with the base plate 1 are opened on the exhibition surface 12a set on the top plate 12 of the base 1, the air purification mechanism X and the humidity control mechanism Y can be easily operated from the outside. In addition, the intake port 14 and the air supply port 15 are not conspicuous, and a good appearance can be maintained.

Further, a door 11a which can be opened and closed is set on the side plate 11 of the base 1, so that when the door 11a is opened, the inside of the base 1 is opened upward. Since the filter mounting part 31 and the operation part 3 having the humidity control means Y are additionally provided inside the door 11a, the replacement operation of the cassette 5 of the chemical filter 44 and the humidity control means Y or the air purification means X is performed. Since operations such as lighting and lighting can be performed in a standing posture, such operations and operations can be performed easily, and work efficiency can be effectively improved. Further, since the circulation path 4 is constituted by a bellows-type duct element, an excessive force is not applied to the duct element which expands and contracts and flexibly deforms according to opening and closing of the door 11a, and can be used for a long time. is there.

(Second Embodiment) A display case A2 shown in FIGS. 4 and 5 has a base 110 and a case body 120 like the display case A1 of the first embodiment, and is an island type. And provided with an air purification mechanism X1 and a humidity control mechanism Y1. The description of the parts having the same configuration as the first embodiment will be omitted.

The base unit 110 has four side plates 111 and a top plate 112, and further has an exhibition floor 116 on which an exhibit B is to be placed on the upper surface of the top plate 112. The display surface 116a set on the upper surface of the display floor 116 is
1 is set to be one step higher than the upper end 111a. In addition, the door body 111a which can open and close a part of the side plate 11
Is similar to the first embodiment in that an operation unit 130 is provided on the inside.

The case main body 120 is composed of four side glass panels 121 and an upper glass panel 122 so as to surround the periphery of the exhibition space S, and has a lower end opened. A rectangular frame is formed inside the lower end. The frame 123 formed is integrally attached to maintain shape retention. A seal member 124 is attached between the frame 123 and the side glass 121 to maintain airtightness. The case body 12
Numeral 0 is supported by a lifting mechanism (not shown) provided in the base 110 so as to be able to move up and down at the four corners at the lower end. It is configured to be able to do. Then, the side plate 1 that is one step lower than the exhibition floor 116 of the base 110.
At the upper end 111a of the housing 11, a seal member 117 is disposed over substantially the entire circumference, and when the exhibition space S is closed by lowering the case main body 120, the frame 123 and the side plate 111 are closed.
The airtightness of the exhibition space S is increased by sandwiching the seal member 117 between the display space S and the display space S. Further, the base 1
In order to prevent interference between the display floor 116 and the side floor glass 121, the display floor 116 is formed so as to form a continuous groove-shaped gap T having a predetermined width continuous between the display floor 116 and the side glass 121. The size is set.

On the other hand, the air purification mechanism X1 and the humidity control mechanism Y1
Share the circulation path 140 as in the first embodiment. The circulation path 140 is composed of a bellows-type intake duct element 141 and an air supply duct element 142 which are made of resin and can be expanded and contracted and flexibly deformed. The start end 141a of the intake duct element 141 and the air supply duct are provided. The terminal portions 142b of the elements 142 are respectively attached to the duct chambers 145. The duct chamber 145 is located at the upper end side inside the base 110 and slightly inside the corners facing along one side of the top plate 112 and the side plate 111 and the top plate 1.
12 is a hollow L-shaped hollow attached in side view. A plurality of through-holes that open laterally are provided at the upper end thereof and communicate with the gap T between the exhibition floor 116 and the side glass 121 through the through-holes, and the lower end is opened downward. At the same time, the starting end 141a of the air intake duct element 141 and the terminal end 142b of the air feeding duct element 142 are attached to the parts. Further, a through hole at the upper end of the duct chamber 145 on the side of the intake duct element 141 is formed as an intake port 145a.
In addition, a through hole in the duct chamber 145 on the side of the air supply duct element 142 is an air supply port 145b. That is, these duct chambers 145 communicate the exhibition space S and the circulation path 140 through the gap T, and the gap T forms an opening formed around the exhibition floor 116 along the side glass 121 for that purpose. Is what you do. The duct chamber 145 of the side plate 111
Is provided with a small space between the top plate 112 and the intake port 145a and the air supply port 145b to communicate with the gap T.

Thus, on such a circulation path 140, a cartridge type chemical filter 144 similar to that of the first embodiment is detachably attached to a filter attachment portion 131 provided on the intake duct element 141, and A cartridge type humidity control means Y1a containing a humidity control agent can be attached to and detached from a humidity control agent mounting portion 132 provided between an end portion 141b of the air intake duct element 141 and a start end portion 142a of the air supply duct element 142. Attached to. That is, also in the present embodiment, the chemical filter 144 and the circulation path 140 constitute the air purification mechanism X1, and the humidity control means Y1a and the circulation path 140 constitute the humidity purification mechanism Y1, and the circulation path 140 is connected to the air purification mechanism. X1 is shared by the humidity control mechanism Y1. Further, a fan 143 is provided between the filter mounting portion 131 and the humidity control agent mounting portion 132. In addition, timer switch and door 1
The specific configuration of the operation unit 11a and the operation unit 130 is the same as that of the first embodiment.

In the display case A2 of the present embodiment having such a structure, the display space is obtained by operating the operation unit 130 to operate the fan 143, similarly to the display case A1 of the first embodiment. The air in the S
The air is sucked into the air intake duct element 141, the harmful substances and dust are removed by the chemical filter 144, and the humidity is adjusted to an appropriate level by the humidity control agent.
It is sent out again to the exhibition space S through 2. Therefore, even with such a configuration, it is possible to clean the air in the exhibition space S and adjust the humidity appropriately.

In particular, the display case A2 includes the case body 1
The display space S is opened and closed by lifting and lowering the base 20. The side glass 121 of the case body 120 and the display floor 116 of the base 110 are connected to each other so that the base 110 does not interfere with the lifting operation. Since the gap T having a continuous groove shape formed between them is used as an opening for communicating the exhibition space S and the circulation path 140, such a display case A2 is configured to open and close the exhibition space S. Can be used effectively to circulate air from the outside without being noticeable. Moreover, at that time, the intake port 14 of the circulation path 140
5a and the air supply port 145b are set in the through holes of the duct chamber 145 opened in the direction facing the side glass 121 so that air can be taken in and out through the gap T. The duct elements 141, 142 can be appropriately connected from below through the duct chamber 145 toward a certain narrow gap T. Further, with such a configuration, the air that is forcibly circulated is sucked along the side glass 111 and blows out along the side glass 111 as well, so that the air does not directly hit the exhibit B, and The deterioration of the object B can be easily prevented.

The present invention is not limited to the above embodiments,
The filter and the humidity control means may be changed to those having other properties. In addition, it is permissible to change the setting position of the intake port and the air supply port, or the arrangement order of the fan, the filter, and the humidity control means. May be determined in consideration of the shape of the opening and the width of the opening. In addition, the present invention is not limited to the display case arranged in an island shape, and may be applied to display cases of other specifications, such as a display case set up adjacent to a building wall, by appropriately setting a circulation path. it can.

In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0043]

The present invention is embodied in the form described above and has the following effects.

That is, the display case of the present invention is configured so that the air in the exhibition space is forcibly circulated by providing a circulation path outside the exhibition space in a sealed state with the exhibition space. , The air in the exhibition space is drawn out to the outside through the circulation path, and the environment in the exhibition space is maintained in a desired constant state by purifying the air or adjusting the humidity, for example, to effectively prevent the deterioration of the exhibits. can do.

In the case where a filter arranged on the circulation path is arranged to form an air purifying mechanism and air in the exhibition space is forcibly circulated to purify the air, Dust and harmful substances contained in the air can be efficiently removed, and clean air can be supplied into the exhibition space, thereby effectively preventing deterioration of the exhibits. In particular, when a chemical filter is used as such a filter, it is possible to effectively remove formaldehyde and other harmful substances that adversely affect the exhibits. Furthermore, if the filter is of a cartridge type that can be attached to and detached from the circulation path, the filter that has deteriorated as a result of use can be easily replaced.

When the humidity control mechanism is formed by providing the humidity control means on the circulation path, the forcedly circulated air efficiently passes through the control means, so that the humidity environment can be adjusted. If the circulation path is shared with the air purification mechanism, the air in the exhibition space can be purified simultaneously with the humidity control. In this case, if the humidity control means includes a humidity control agent that absorbs or releases moisture in the air in accordance with the set humidity, the adjustment of humidity can be made extremely effective and simple. Furthermore, if the humidifier is of a cartridge type that can be attached to and detached from the circulation path, the deteriorated humidifier can be easily replaced after use.

In such a configuration, if the flow of the forcedly circulated air is set to a predetermined speed or less that does not remove the boundary air layer formed around the exhibit, for example, The environment such as the humidity of the exhibit itself protected by the air layer can be favorably maintained.

If a timer switch is provided to automatically stop the forced circulation of air after a lapse of a predetermined time, waste of forced air circulation at all times is eliminated, and the environment in the exhibition space is maintained substantially constant. can do.

In particular, in the case of a display case including a case body in which an exhibition space is set and a base supporting the case body, a circulation path is arranged on the base, and the circulation path and the exhibition space are arranged. By forming an opening that communicates with, the circulation path can be hidden in a flowery manner and the appearance of the display case can be well maintained. In this case, if the air is configured to flow along the inner surface side of the case body, it is possible to effectively prevent the forcibly circulated air flow from directly hitting the exhibit and deteriorating the exhibit. .

In particular, when an opening is provided with a thin slit for communicating the exhibition space and the air circulation path on an exhibition surface set on the top plate or the like of the base portion, the air purification mechanism and the humidity control mechanism are effective. It is possible to appropriately purify the air and control the humidity while keeping the appearance of the exhibition space and the exhibition surface favorable while hiding the slits and making the slits inconspicuous.

When the gap formed between the display surface and the glass surface of the case body located on the side of the display space is used as the opening, the display case originally has a structure. It is possible to purify air and control humidity by effectively using the air. In this case, if the gap is a groove continuously extending along the glass surface, a uniform air flow can be formed in the exhibition space, and the environment in the exhibition space can be efficiently kept substantially constant. Furthermore, the air inlet and the air inlet of the circulation path are
By opening and closing air in and out of the gap by opening in the direction opposite to the glass surface, it is possible to properly connect the circulation path to a narrow gap that is spatially limited by design. It is also easy to set the air flow so that it is hard to hit the exhibits directly.

In particular, in such a display case, when a door body which is opened upward is provided on the base portion, a mounting portion such as a filter or a humectant is provided inside the door body. With the attachment, it is possible to perform the work such as the exchange thereof in a posture that looks into from above, so that the working efficiency can be effectively increased. Furthermore, if the circulation path is constituted by a bellows-type duct element, an unreasonable load is not applied because the duct element expands and contracts with opening and closing of the door body,
It can withstand long-term use.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a schematic side sectional view showing a simplified internal structure of the embodiment.

FIG. 3 is a schematic side sectional view showing a state where the door is opened, corresponding to FIG. 2;

FIG. 4 is a schematic side sectional view showing a simplified internal structure of a second embodiment of the present invention.

FIG. 5 is a perspective view showing the embodiment with a part thereof omitted;

[Explanation of symbols]

A1, A2: display case S: display space T: opening (gap) X, X1: air purification mechanism Y, Y1: humidity control mechanism Ya, Y1a: humidity control means 1, 110: base 2, 120: case Main body 4, 140: circulation path 11a, 111a: door body 12a, 116a: display surface 14, 15: opening {slit (inlet, air inlet)} 41, 42, 141, 142 ... duct element (inlet, Inlet) 44, 144 ... Filter (chemical filter) 145a ... Inlet 145b ... Inlet

Continuation of the front page F term (reference) 3B110 FA03 FA16 HA08 HA24 JA07 JA12 3L058 BE08 BG03 BG05 4D052 AA09 CA04 CA09

Claims (17)

[Claims] An exhibition space capable of accommodating an exhibit is provided, and a circulation path is provided outside the exhibition space in a closed state to the exhibition space and forcibly circulates air in the exhibition space. An exhibition case characterized by being provided. 2. An air purifying mechanism for purifying air in an exhibition space, the air purifying mechanism comprising the circulating path and a filter disposed on the circulating path. The display case according to claim 1, wherein: 3. The display case according to claim 2, wherein the filter is a chemical filter capable of adsorbing harmful substances. 4. A filter as a cartridge type,
The display case according to claim 2 or 3, wherein the display case is detachably provided on a circulation path. 5. A humidity control mechanism capable of adjusting the humidity in the exhibition space, wherein the humidity control mechanism includes the circulation path and humidity control means arranged on the circulation path. The display case according to claim 1, 2, 3, or 4, wherein 6. The display case according to claim 5, wherein the humidity control means is provided with a humidity control agent that absorbs or releases moisture contained in the air in accordance with the set humidity. 7. The display case according to claim 6, wherein the humidity control agent is of a cartridge type and is detachably provided on the circulation path. 8. The display according to claim 1, wherein an air flow at least around the display is set to be lower than a predetermined speed. Case. 9. A system according to claim 1, further comprising a timer switch for automatically stopping the flow of air after a lapse of a predetermined time from the start of air circulation.
The display case described in 6, 7, or 8. 10. A case body surrounded by a glass plate or the like and having an exhibition space set therein, and a base portion having at least a side plate and a top plate having an exhibition surface on the upper surface side and supporting the case body. A circulating path is arranged inside the base, and an opening is formed between the base and the exhibition space to communicate the circulation path with the exhibition space. The display case described in 3, 4, 5, 6, 7, 8, or 9. 11. The display case according to claim 10, wherein air is configured to flow along the inner surface of the case body in the display space. 12. The display case according to claim 10, wherein the opening is a slit provided on a display surface. 13. The display device according to claim 10, wherein the opening is a gap formed between the display surface and a glass surface of the case body positioned on the side of the display space.
The display case described in 1. 14. The display case according to claim 13, wherein the gap is a continuous groove extending along the glass surface. 15. The display case according to claim 13, wherein an air inlet and an air inlet of a circulation path communicating with the gap are opened in a direction facing the glass surface. 16. The base according to claim 10, wherein the base is provided with a door which can be opened and closed so that the inside can be opened upward to the outside. Display case. 17. The display case according to claim 16, wherein the circulation path is constituted by a stretchable bellows-type duct element.