JPH0736791B2 - Showcase - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a showcase that blows and cools cold air into a product storage chamber, and more particularly to an improvement of a see-through member that surrounds the product storage chamber.

Conventional technology In a showcase that displays products, making it easy to see the product storage space from the outside is an indispensable requirement. It is well known that the side surface is formed of a plate-shaped transparent body (so-called four-sided glass type showcase), and an example thereof is Japanese Utility Model Publication No. 62-16621. On the other hand, in order to cover the product storage space with a transparent body having a curved surface, JP-B-39-10268 and JP-B-61-145
There is 283 publication.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In Japanese Utility Model Application Laid-Open No. 62-16621, there is presented a showcase having four side surfaces formed of four double glazings, which is cooled between the storage part and the outside. Since there is a temperature difference between the glass and dew condensation on the outer surface of the glass, the warm air introduced from the machine room is blown to the outer surface of the glass to prevent dew condensation. It should be noted that each side surface is formed by arranging two flat glasses in parallel with a space therebetween. When forming the glass, a spacer is placed on the edge side of the glass and a frame is coated on the peripheral edge, so that it is easy to maintain a constant interval, and it is not necessary to devise it, but when using curved glass Has
Maintaining the spacing is very troublesome as well as increasing the manufacturing cost, and double arranging glasses exhibiting a cubic surface is not performed in particular.

On the other hand, in Japanese Utility Model Publication No. 39-10268, the side view is approximately 1/4.
A large and small upper lid formed of a circular transparent body is rotatably attached, and the large or small upper lid is rotated to open and close the product storage unit. However, since this upper lid is composed of a single plate, it has a poor heat insulating property and a large heat loss as compared with a multi-layer structure. For this reason, it cannot be used for those with severe temperature control zones such as a constant temperature oven where heat loss cannot be ignored in operation control, and no devise has been made in terms of dew prevention. When used as, there is a problem that the outer surface of the upper lid is fogged or exposed to the outside, impairing the see-through property of the displayed product and making it impossible to expect a sufficient display effect.

On the other hand, in Japanese Utility Model Laid-Open No. 61-145283, a storage portion for products such as fresh confectionery is surrounded by a lid having a substantially cylindrical shape with an opened lower surface. Since this lid is also made of a single plate, it is not suitable for use in those with a severe temperature control band whose thermal loss cannot be ignored, and no measures have been taken in terms of dew condensation. Not not.

Therefore, the present invention is a show in which transparent bodies each having a three-dimensional shape are vertically overlapped with each other with a space therebetween to provide heat insulation and a transparent member in which fogging is less likely to occur and a product storage chamber is surrounded by the transparent member. The challenge is to provide the case.

[Structure of Invention]

Means for Solving the Problems As means for solving the above-mentioned problems, a product storage room surrounded by a see-through member and having a display stand for mounting products on the bottom is disposed at the top, and air is introduced into the product storage room. In a showcase in which a ventilation chamber that supplies air to the product storage chamber and supplies air to the product storage chamber is formed below the product storage chamber, the see-through member has a hemisphere each having a lower surface opening. Inner plate / middle plate and outer plate, which have a planar shape and are made of a transparent resin and are arranged in triples with a space between each other, and lower ends of the inner plate and the outer plate along the peripheral edge of the lower surface opening. And a space formed by the inner plate and the middle plate, and a space formed by the outer plate and the middle plate are communicated with each other, and water vapor is passed to a proper place of the inner plate. Providing a showcase with holes To do.

Action Transparent inner plate, middle plate, and outer plate having lower surface openings are arranged in the inner / middle / outer triplet at intervals, and are arranged at the lower ends of the inner and outer plates along the peripheral edge of the lower surface opening. , An air layer is formed between each plate, and by appropriately setting the interval between the plates, heat convection in the air layer is less likely to occur and the heat insulation of the air layer itself is maintained,
The see-through member has a heat insulating property. And, by forming holes for water vapor removal in appropriate places of the inner plate, the water vapor partial pressure of the air in the space surrounding the transparent member and the partial pressure of water vapor of the air layer of the transparent member are made substantially uniform. If the see-through member is used for surrounding the cooling space, the inside of the air layer is dehumidified, and the hole itself acts as a hole for the asvil. Further, by making the space formed by the inner plate and the middle plate communicate with the space formed by the outer plate and the middle plate, the entire air layer of the see-through member can have a uniform water vapor partial pressure. By forming each transparent plate into a three-dimensional shape, it is possible to make the air in the product storage chamber easier to see and to direct the blown air more smoothly.

Embodiment An embodiment of the present invention will be described below with reference to FIGS.

(G) is a display stand, and a leg member (T) that forms an unused space (S) is provided below a room for displaying products.

(1) is a closed-type display box (10), which is formed separately from the display box, stores mechanical parts, and draws cooling air, that is, cool air, for example, the display box such as the unused space (S) Blower covered with a heat insulating material in order to connect the machine box (2) arranged at a position distant from the (10) and both boxes (10) and (2) so that air can flow and to suppress the temperature rise of cold air. This is a separate type showcase consisting of a pipe (3), which can be used for freezing, refrigerating, ice temperature and warming by changing the temperature range to be controlled according to the type of products to be stored. In the example, a refrigerated showcase will be described as an example.

The display box (10) is mounted on the turntable (18) and a base (11) having a turntable (18) on which the sale product is placed and which is rotatably and detachably held A see-through member (hereinafter referred to as a hood) (22) that surrounds the product and defines a product storage chamber (12) above the base (11).
And is placed on a table such as a display case (G).

The base (11) has a substantially circular shape in plan view and has a product storage chamber (1
A ventilation chamber (13) is formed in the lower upper stage of the turntable (18) which is the bottom wall of 2), and an illumination chamber (14) is formed in the lower stage, and both chambers (13) and (14) have a partition plate (21). ) And insulation (15
A) and a translucent member having a heat insulating property such as a three-layer transparent glass (15B).

Then, the ventilation chamber (13) introduces the cold air carried from the machine box (2) through the blower pipe (3), and the cold air is blown from the outlet (19) of the turntable (18) to the product storage chamber (12). A cold air supply part (16) as a high pressure space for guiding and a low pressure space for collecting the air in the product storage chamber (12) from the suction port (20) of the turntable (18) and leading it to the blower pipe (3). The cold air return part (17) is formed separately from the partition.

In addition, the lighting room (14) has a three-layer transparent glass (15B) below the lighting lamp which is a part of the lighting device, for example, an annular fluorescent lamp (26).
Are installed. The central space of the fluorescent lamp (26) is used to arrange electric parts such as a glow lamp.

On the other hand, the hood (22) surrounding the product storage chamber (12) has a plurality of three-dimensional shapes (for example, a hemispherical shape) of the lower surface opening made of transparent resin such as acrylic acid resin (in this example, the outer plate (30), The inner plate (31) and the middle plate (32), which are three transparent bodies, are arranged in a plurality of layers (three layers) at a distance from each other to form the main body and are located in the outermost layer. A fixing piece protruding outward from the lower portion of the outer plate (30) is fixed to the hinge device (23). The spacing between the plates is selected in a range where convection is unlikely to occur in the air layer between the plates, and in this example, it is set to about 5 mm so that the air layer serves as a heat insulating layer. In addition, an annular frame member (24) made of resin is arranged around the lower ends of the inner plate (31) and the outer plate (30) along the periphery of the lower surface opening, and the entire lower surface of the annular frame member (24) is arranged. The hood (2
2) and the base (more specifically, the horizontal part (21A) of the partition plate (21))
The packing (25) that seals with (11) is attached.

The inner plate (31) is provided with a mounting portion (33) that extends toward the outer plate (30) and mounts the outward flange (34) at the lower end of the middle plate (32). A restricting portion (35) for restricting upward movement of the flange (34) of the intermediate plate (32) is provided, and the annular frame member (24) or the placing portion (33) is provided with the intermediate plate (32). A restriction portion (43) for restricting outward movement of the outward flange (34) is provided. The lower ends of the inner plate (31) and the outer plate (30) are inserted into the inner groove (41) and the outer groove (42) of the annular frame member (24) so that the annular frame member (24), the inner plate (31), and Achieve a bond with the skin (30). In this case, the inner groove (41) and the outer groove (42)
An adhesive may be poured into the inside to keep the inner plate (31), the outer plate (30), and the grooves (41) and (42) airtight.
The placing portion (33) and the limiting portion (35) are the front side of the hood (22) (opposite side of the hinge device (23)) and the rear side of the hood (22) (side of the hinge device (23)). It is also provided at appropriate places such as the left and right sides of the hood (22). Further, the restriction portion (43) formed in the annular frame member (24) has a notch (4) into which the restriction portion (35) enters.
4) is formed and acts as positioning of the outer plate (30).

(45) is a sash containing a desiccant (46) inside, and is housed in an annular shape between a pair of intermediate walls (47) and (48) of the frame member (24). A protrusion (36) extending upward is formed on one of the mounting portions (33) that does not correspond to the restriction portion (35) (for example, one at the left and right positions of the hood), and the flange (34) of the middle plate (32) is formed. ) Is engaged with an engaging groove (shown by a notch) (37) formed in (1) to stop rotation of the intermediate plate (32). In addition, the annular frame material (2
A locking groove (49) for locking the mounting portion (33) is formed at the upper end of the intermediate wall (48) of 4) to prevent the inner plate (31) from rotating and to position the inner plate. is doing. (50) is formed in a proper place of the inner plate (31), for example, immediately above the placing part (33) provided with the protrusion (36), and the air in the product storage chamber (12) and the air in the hood (22) are formed. It is a steam vent hole of an appropriate size (in this example, the diameter is set to about 3 mm to 5 mm) so that steam can move back and forth between the layers. Then, the water vapor partial pressure of the air in the product storage chamber (12) which is cooled by the cold air circulation and has a low humidity and the water vapor partial pressure in the air layer of the hood (22) cause the water vapor vent hole (50) to pass through. The hood (22) is equilibrated via the holes and acts as an aspirator hole for reducing the amount of water vapor in the air layer in the hood (22). The hood (22)
Since the amount of water vapor in the air layer inside is small, even if the air inside the product storage room is cooled and the inner plate (31) of the hood (22) is cooled, the water vapor is liquefied and adheres to the outer surface of the inner plate (31). It will not fog or become dewdrops and will have good see-through properties.

With this configuration, the procedure for assembling the hood will be described. First, the adhesive is poured into the inner groove (41) and the outer groove (42) of the annular frame member (24) to store the sash (45) in the frame member (24), and then the opening edge of the inner plate (31) is closed. Insert into the inner groove (41). At this time, the step portion (38) on the inner surface of the inner plate (31) hits the upper end of the inner wall of the annular frame member (24) to limit the insertion depth to prevent the adhesive from overflowing, and the mounting portion (33) to Prevents the sash (45) from slipping upward.

Next, the intermediate plate (32) is covered from above the inner plate (31), and the flange (34) is placed on the placing portion (33). At this time, the projection (36) formed by the mounting portion (33) enters the engagement groove (37) to position the intermediate plate (32) and prevent its rotation.

Next, the outer plate (30) is placed over the middle plate (32). At this time, the limiting portion (35) enters the notch (44) to be positioned and corresponds to the flange (34), and the opening peripheral edge of the outer plate (30) enters the outer groove (42). Further, the step portion (39) formed on the outer surface of the outer plate (30) comes into contact with the upper end of the outer wall of the frame member (24) to restrict entry into the outer groove (42). If necessary, the flange (34) may be spot-bonded to the mounting portion (33).

The packing (25) supports and fixes its base made of a hard material in the lower surface recess (40) of the annular frame member (24) via an adhesive. This work is usually done by fitting the inner plate (31) to the frame (2
4) Before mounting on the outer plate (30),
It may be after mounting in 4).

In the present embodiment, the inner plate (31) has a water vapor vent hole (5
0) is formed so as to have an action as an aspirator, but instead of that, holes for filling the adiabatic gas are provided at appropriate places of the outer plate (30) and the middle plate (32), for example, on the hinge device (23) side. And a vent hole (both not shown) is formed for venting air by gas filling, so that the space between the middle plate (32) and the inner plate (31) of the assembled hood (22) and the middle plate (32).
The space between the outer plate (30) and the outer plate (30) may be filled with adiabatic gas such as sulfur hexafluoride or argon to prevent fogging or dew in the space inside the hood (22). In the present embodiment, the inner frame (31) and the outer plate (30) are provided at the lower ends thereof with the annular frame member (24) formed separately, but the present invention is not limited to this. The annular frame member may be omitted by integrally forming a flange extending outwardly around the lower end of the inner plate and attaching the middle plate, the outer plate and the packing to the flange.

As described above, the inner plate, the middle plate, and the outer plate, which are arranged in triple in the inner, middle, and outer sides, have the inner frame (31) and the outer plate (30) prevented from rotating by the annular frame member (24). It is fixed in the positioned state, and the fixed portion (33) of the inner plate (31) and the restricting portion (35) of the outer plate (30) which are fixed to the outer flange of the middle plate (32). (34) can be clamped to prevent movement in the vertical direction and also to prevent movement in the rotational direction, and all three can be fixed in the state in which the rotation is blocked. When assembling the hood (22), the inner plate (31)
The middle plate (32) and the outer plate (30) are assembled in this order to the annular frame member (24), and the work can be performed with the lower surface opening facing downward, so the assembly work is very stable.
Further, the middle plate (32) is attached to the projection (36) of the mounting part (33) of the inner plate (31).
By engaging the engaging groove (37) of the outward flange (34) of the, the space between the inner plate (31) and the intermediate plate (32) can be appropriately maintained, while the outward flange (34) and Since the space between the middle plate (32) and the outer plate (30) can be held by the restricting portion (43), a space holding member between the plates is unnecessary.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

As a see-through member, inner plates, middle plates, and outer plates, each having a three-dimensional shape, are arranged in the inner, middle, and outer triples with a space between each other, and an annular frame member is arranged at the lower ends of the inner plate and the outer plate. Then, an air layer is formed between the plates, and the space between the plates is appropriately selected to prevent convection of the air layer from occurring, so that this air layer is used as a heat insulating layer.

Further, by forming a hole for allowing water vapor to pass through in an appropriate place of the inner plate, it is possible to balance the water vapor partial pressure of the space surrounded by the see-through member and the water vapor partial pressure of the air layer. It works effectively and can be used without fog or dew.

Since these transparent members are arranged so as to surround the product storage room, the products placed on the display stand can be seen very easily and the air blown into the product storage room can be smoothly directed. Therefore, the stagnation of air is eliminated, and the temperature in the storage chamber can be easily equalized.

[Brief description of drawings]

Each drawing shows an embodiment of the present invention, FIG. 1 is a partially enlarged sectional view of a hood, FIG. 2 is an external perspective view of a state in which a showcase is installed on a display stand, and FIG. 3 is a vertical section of an exhibition box. Floor plan,
FIG. 4 is an exploded perspective view corresponding to FIG. 1, FIG. 5 is an enlarged cross-sectional view of another portion of the hood, FIG. 6 is an exploded perspective view corresponding to FIG. 5, and FIG. It is an expanded sectional view shown in FIG. (1) ... Showcase, (2) ... Machine box, (3) ... Air duct, (10) ... Exhibit box, (12) ... Product storage section, (13) ... Ventilation room, (18) ... Turntable, (22)… Hood, (2
4) ... annular frame material, (25) ... packing, (30) ... outer plate,
(31) ... Inner plate, (32) ... Middle plate, (33) ... Placement part, (34)
… Outward flange, (35)… Restriction part, (41)… Inner groove,
(42) ... Outer groove, (43) ... Regulator, (44) ... Notch, (4
9)… Locking groove, (50)… Water vapor vent.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuji Kishi 2-18, Keihan Hondori, Moriguchi City, Osaka, Sanyo Electric Co., Ltd. (56) Bibliographic references Sho 49-85662 (JP, U) Sho 50 -30392 (JP, U) JP 63-10353 (JP, B2) JP 42-22676 (JP, Y1) JP 50-1657 (JP, Y2)

Claims (1)

[Claims] 1. A product storage chamber, which is surrounded by a see-through member and has an exhibition stand on the bottom of which a product is placed, is arranged at the top, and air is supplied into the product storage chamber and the air in the product storage chamber is collected to recover the air. In a showcase in which a product storage chamber and a ventilation chamber for air circulation are formed below the product storage chamber, the see-through member has a hemispherical shape having a lower surface opening, and is formed of transparent resin. An inner plate, a middle plate, and an outer plate that are arranged in a triple manner with a gap, and an annular frame member that is arranged at the lower ends of the inner plate and the outer plate along the peripheral edge of the lower surface opening, A space formed by the inner plate and the middle plate and a space formed by the outer plate and the middle plate are communicated with each other,
A showcase, characterized in that holes for passing water vapor are formed at appropriate places on the inner plate.