JP3096627B2 - Cooling showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling showcase such as a refrigerated showcase or a frozen showcase having an opening for storing and taking out goods at least at the front of a storage room.

[0002]

2. Description of the Related Art A conventional cooling showcase of this type is disclosed, for example, in Japanese Patent Publication No. 62-8708 (F25D17 / 0).
As described in 8) etc., on the front of the storage room,
An opening for storing and taking out the product is provided, and an air curtain is formed in the opening for storing and taking out the product. In addition, a cooling chamber is provided below the storage chamber, and a cool air suction port for sucking an air curtain is formed at a front end of the cooling chamber. The cool air in the cooling chamber is guided to a cool air outlet above the storage chamber through a vertical duct on the rear surface of the storage chamber.

[0003]

However, when the vertical duct is provided on the rear surface of the storage room, the depth of the cooling showcase in the front and rear direction is increased. Therefore, when there is no depth in the installation place of a cooling showcase, installation of a cooling showcase becomes difficult. Further, it is difficult to form an opening for storing and taking out the product on the rear surface of the storage room.

Therefore, it has been considered to arrange a vertical duct at the left end or the right end of the storage room. By the way, when the vertical duct is provided at one end of the storage room, the blower is arranged to be biased toward the other end of the storage room.
Further, since the cold air suction port is elongated in the left-right direction, a portion close to the blower and a portion far from the blower are formed. Therefore, the air suction amount increases in a portion close to the blower, while the air suction amount decreases in a portion far from the blower. As a result, the amount of cool air forming the air curtain varies depending on the location, and the air curtain becomes uneven and disturbed, so that it is difficult to maintain cool air in the storage room.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a cooling showcase which can form a substantially uniform air curtain with a small front and rear depth. .

[0006]

SUMMARY OF THE INVENTION A cooling showcase (1) according to the present invention has a storage room (16) provided with an opening (17) for storing and unloading goods at least on the front thereof, and a storage room (16) for storing and unloading goods. An air curtain (46) formed in an opening; a cooling chamber (23) disposed below the storage chamber; and a suction plate (53) elongated in the left-right direction at the front end of the cooling chamber. ), And the suction plate forms a suction port (48) for sucking cool air of the air curtain into the cooling chamber.

In order to achieve the above object, the cooling chamber is provided with a blower (2) biased to one side in the left-right direction.
5) is arranged, and a vertical duct (36) is arranged vertically at the other end in the left-right direction of the cooling chamber. Between the blower and the vertical duct,
A cooling room duct (26, 27) for guiding the air flow from the blower to the vertical duct is provided, and a cooler (28) is installed in the cooling room duct. An air volume adjusting plate (55) is provided along the suction plate, and the cross section of the cool air flow in the suction plate is reduced from the other side in the left-right direction to one side.

In some cases, the suction plate is detachably attached to the cooling chamber, and the suction plate may be integrally provided with an air volume adjusting plate.

[0009] Further, an opening for merchandise storage and taking out is provided on both front and rear surfaces, and an air curtain is formed in each of the opening and closing opening for merchandise storage and taking out.
The front and rear suction plates form a suction port for sucking cool air of the air curtain, and a projection member (63) for preventing erroneous installation may be provided. The projecting member for preventing incorrect installation does not prevent the installation of the suction plate when the front and rear suction plates are installed at regular positions in the cooling chamber, and the front and rear suction plates incorrectly set the front and rear positions. When the suction plate is installed, the suction plate is in contact with the air volume adjustment plate provided integrally with the suction plate to prevent the installation of the suction plate.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a cooling showcase according to the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a cooling showcase according to the present invention. FIG. 2 is a longitudinal sectional view of FIG. 1 and a II-II sectional view of FIG. FIG. 3 is a sectional view taken along the line III-III of FIGS. 2 and 5.
FIG. 4 is a sectional view taken along line IV-IV of FIG. FIG. 5 is an enlarged view of a main part of a VV section in FIG. FIGS. 6A and 6B are explanatory diagrams of the state of attachment of the suction plate, wherein FIG. 6A is a diagram of a normal state, and FIG. 6B is a diagram of a case where the attachment position is incorrect. FIG. 7 is a perspective view of a projecting member for preventing erroneous installation. The price rail is shown only in FIG.

A machine room 3 is arranged below the refrigerated or frozen open showcase 1 as a cooling showcase for displaying various products such as soft drinks, bento, ham and fruit. The machine room 3 is provided with a condenser 4, a blower 5 for the condenser, a compressor and the like. The upper wall 8, the right side wall 9 of the showcase 1, and the bottom wall 10, which is a partition wall from the machine room 3, constitute an insulating box body having three open sides, and are made of a foamed synthetic resin such as hard foam. It is made of a heat insulating material 11 such as polyurethane.

At an appropriate distance from the inner surface of the heat insulating material 11, the inside top plate 12, the inside wall plate 13 and the inside floor plate 1 made of a coated steel plate or a non-rusting metal plate such as stainless steel.
4 are provided. A side plate 15 made of a transparent double glass plate is provided on the left side surface of the open showcase 1. The display room 16 as a storage room surrounded by the top plate 12, the inner wall plate 13, the inner floor plate 14, and the side plate 15 has openings 17 for storing and taking out products on the front and rear surfaces. In the display room 16, a pair of right and left columns 18 are vertically provided. A transparent main partition plate 19 is disposed between the columns 18, and a transparent auxiliary partition plate 20 is disposed on the left side of the left column 18.
Is equally divided into a front display room 16a and a rear display room 16b. In each of the front display room 16a and the rear display room 16b, a product display shelf 21 is supported by a pair of left and right support brackets 22 and arranged in multiple stages.

The space between the inner floor plate 14 and the bottom wall 10 is a cooling chamber 23. The three sides of the cooling chamber 23 are covered with a short heat insulating wall 24, and the remaining right side is The aforementioned side wall 9 is closed. A pair of front and rear cooler blowers 25 is disposed in a left portion of the cooling chamber 23.
On the right side of this blower 25, upper and lower
Step ducts 26, 27 extend toward the right end. A first cooler 28 is disposed in the upper duct 26, and a pair of tube sheets 29 (see FIGS. 3 and 5) of the cooler 28 are vertically and horizontally positioned on the front and rear side walls of the ducts 26 and 27. It is constituted by extending. Upper duct 2
6, the upper cover member 31, while the upper duct 2
The lower cover member 32 is arranged between the lower duct 6 and the lower duct 27. The upper cover member 31 and the lower cover member 32 are each inclined from upper right to lower left. And
The lower cover member 32 includes the first cooler 28 and the bottom wall 10.
Are arranged with an interval.

Further, a vertical duct 36 is formed between the inner wall plate 13 and the side wall 9, and a second cooler 37 is provided in the vertical duct 36. The second cooler 37 communicates with the lower duct 27, and is configured so that air from the lower duct 27 flows into the second cooler 37. On the other hand, the upper duct 26 communicates with the space around the second cooler 37, and the air from the upper duct 26 flows upward around the second cooler 37. That is, the front and rear side surfaces of the second cooler 37 are closed by the tube sheet 38, the left side surface is closed by a left cover member (not shown), and the right side surface is closed by the side wall 9. Then, the flow of air in the second cooler 37 and the flow of air around the second cooler 37 join at the upper part of the vertical duct 36.

A ceiling horizontal duct 41 is formed between the inside top plate 12 and the upper wall 8, and a right end, which is one end of the ceiling horizontal duct 41, communicates with the vertical duct 36. ing. Also, the discharge port 44 is an open showcase 1
At the front end and the rear end of the ceiling part, it is elongated in the left-right direction, and serves as an outlet for the cool air flowing into the ceiling horizontal duct 41. The cool air discharged from the discharge port 44 is supplied to the air curtain 46 by the product storage and takeout opening 17.
Is formed. And the suction port 4 described later in detail
8 is an opening 1 for storing and taking out goods in the floor plate 14 in the warehouse.
The cold air, which is formed to be elongated in the left-right direction on the seventh side, and has formed the air curtain 46, flows into the cooling chamber 23 from the suction port 48.

The above-mentioned coolers 28 and 37 constitute a refrigeration cycle with the condenser 4 and the compressor arranged in the machine room 3.
8, 37 become low temperature. Then, when the cooler blower 25 is driven, air flows into the upper duct 26 and the lower duct 27. The air flowing into the upper duct 26 is
Is cooled by the cooler 28, while the air that has flowed into the lower duct 27 is cooled by the second cooler 37 to become cool air. These cool airs join at the top of the vertical duct 36,
It flows into the ceiling horizontal duct 41. Then, the cool air in the ceiling horizontal duct 41 is discharged from the discharge port 44 to form the air curtain 46, and then the cooling chamber 2 is discharged from the suction port 48.
3 and returns to the blower 25. In this way, the display room 16 is cooled while the air is forcibly circulated.

The coolers 28 and 37 perform defrosting from time to time, and the defrost water falls below the coolers 28 and 37. Then, the defrost water of the first cooler 28 falls to the lower cover member 32, flows to the left along the inclination of the lower cover member 32, falls from the left end of the lower cover member 32 to the bottom wall 10, and The water is discharged from the cooling chamber 23 through a drain pipe 51 (see FIGS. 3 and 5) formed on the wall 10.

The suction port 48 is formed by forming a number of openings 48a (see FIG. 6) in the suction plate 53. The suction plate 53 is provided to be elongated in the left-right direction along the product storage and takeout opening 17 of the display room 16, and includes a floor plate 14 as a so-called deck pan, , That is, at the front and rear ends of the cooling chamber 23. The openings 48a are arranged so that the opening areas thereof are substantially uniform in the longitudinal direction of the elongated suction plate 53. The blower 25 that sucks the cool air from the suction port 48 configured as described above is arranged to be biased to one side in the left-right direction as illustrated in FIGS. 2 and 3. Therefore, the opening 48 close to the blower 25
a sucks a large amount of cool air, and the opening 48a remote from the blower 25 reduces the amount of cool air sucked. as a result,
The air curtain 46 becomes uneven.

Therefore, below the suction plate 53, an air volume adjusting plate 55 shown in FIGS. 3 and 6 is provided.
The air volume adjusting plate 55 projects substantially horizontally, and reduces the gap at the lower portion of the suction plate 53 to reduce the cross-sectional area through which the cool air flows. The projecting amount, that is, the projecting width of the air volume adjusting plate 55 is made larger on the side closer to the blower 25 and smaller on the side farther from the blower 25, so that the flow rate of the cool air sucked in through the opening 48a is made substantially uniform. That is, the air volume adjusting plate 55 has a substantially triangular shape with the left-side projection width larger than the right-side projection width.

The air volume adjusting plate 55 is formed integrally with the suction plate 53, and can be attached to and detached from the main body of the open showcase 1 integrally with the suction plate 53. However, as shown in FIG. 3, the suction plate 53 on the near side and the suction plate 53 on the back side have different mounting positions of the air volume adjusting plate 55, and are not compatible. That is, in FIG. 3, the left and right sides of the suction plate 53 on the near side are set to 1
When it is turned over by 80 degrees (the left side is positioned on the right side) and attached to the back side, the side of the air volume adjusting plate 55 where the projection width is small becomes the blower 25 side, and the flow rate of the air curtain 46 becomes more and more uneven. Therefore, an L-shaped projecting member 63 shown in FIG. 7 is attached to a supporting member 61 that supports the suction plate 53 by screwing with a mounting hole 63a. When the suction plate 53 is placed at the proper position,
As shown in (a), the air volume adjusting plate 55 can be placed without abutting on the projecting member 63. On the other hand, the suction plate 53
6B, the airflow adjusting plate 55 contacts the protruding member 63, and the protruding member 63 prevents the suction plate 53 from being installed.

As shown in FIG. 4, a price rail 65 can be attached to the upper surface of the suction plate 53 so as to be elongated and integrated in the longitudinal direction of the suction plate 53. Is done.

As described above, in the embodiment, a large number of openings 48a are arranged substantially uniformly in the longitudinal direction of the suction plate 53, and the size and the number of the openings 48a are determined in the longitudinal direction of the suction plate 53. Almost unchanged. Therefore, the suction plate 53 can be easily manufactured. The projection width of the air volume adjustment plate 55 is
Of the air volume adjusting plate 55
Can be easily performed by simply changing the cutting direction. As described above, in the embodiment, the air volume adjusting plate 55
Only gradually decreases the protruding width from the side where the blower 25 is installed toward the vertical duct 36 side.
Can be easily manufactured.

Further, the price rail 65 is provided for the suction plate 5.
Since it is attached to the upper surface of the product 3, the price and the like can be displayed near the product placed on the floor plate 14 in the refrigerator, and the display is easy to understand. This price rail 65
Was previously attached to the handrail 54. However, when there is no space at the place where the open showcase 1 is installed, the customer stands or walks by the handrail 54. Therefore, the price rail 65 located almost directly below the customer is difficult to see, and the price rail 65 has hindered walking.
In the case of this embodiment, since it can be provided inside the refrigerator rather than the handrail 54, it is easy to see and it is less likely to hinder walking.

In addition, since the price rail 65 is provided integrally with the suction plate 53, it can be used for cleaning or the like.
The price rail 65 can also be removed from the open showcase 1 simply by removing the suction plate 53 from the open showcase 1. As a result, frequent cleaning operations and the like in the showcase are facilitated.

The embodiment of the present invention has been described above in detail.
The present invention is not limited to the above embodiment,
Within the gist of the present invention described in the claims,
Various changes can be made. Modification examples of the present invention are exemplified below. (1) In the embodiment, the product storage / removal opening 17 is provided on both front and rear surfaces, but may be provided only on the front surface. Further, it can be formed also on the side surface.

(2) In the embodiment, the air volume adjusting plate 55 is provided integrally with the suction plate 53. However, the air volume adjusting plate 55 can be attached to a member different from the suction plate 53, for example, to the heat insulating wall 24. If the suction plate 53 is provided integrally with the suction plate 53, the suction plate 53 can be detached and attached at the same time, which is convenient. (3) In the embodiment, the air volume adjusting plate 55 is arranged in the horizontal direction. However, if the gap through which the cool air passes can be adjusted, the direction of the arrangement can be changed as appropriate.

(4) In the embodiment, the projecting member 6
Although 3 is attached to the support member 61, it can be attached to another member such as the heat insulating wall 24 or the like.
Further, the projecting member 63 has an L-shape, but its shape can be changed as appropriate as long as it can be brought into contact with the suction plate whose installation position is incorrect. (5) In the embodiment, the cooling chamber ducts 26 and 2
7 has two layers, upper and lower, but it is also possible to configure it with a single-layer duct. Although the cooler 28 is provided only in the upper duct 26, it is also possible to arrange a cooler also in the lower duct 27.

(6) In the embodiment, the vertical duct 36 is provided on the right side. However, the vertical duct 36 may be provided on the left side.

[0029]

According to the present invention, since the vertical ducts are arranged vertically at the left and right ends of the cooling chamber, the vertical ducts are arranged not on the rear surface of the cooling showcase but on the side surfaces. As a result, the depth before and after the cooling showcase can be reduced.

A blower is disposed so as to be biased to one side in the left-right direction of the cooling chamber. Between the blower and the vertical duct, a cooling chamber for guiding an air flow from the blower to the vertical duct. A duct is provided, and a cooler is installed in the cooling room duct. Therefore, the inside of the cooling chamber can be effectively used as a place where the cooler is installed.

Further, the air volume adjusting plate is provided along the suction plate, and the cross section of the cool air flow in this suction plate is reduced from the other side in the left-right direction to one side. Therefore, the closer the air blower is, that is, the stronger the suction force, the smaller the cross section through which the cool air flows. As a result, the suction flow rate is substantially constant at any point on the suction plate, and a substantially uniform air curtain can be obtained, and disturbance of the air curtain can be reduced.

When the suction plate is detachably attached to the cooling chamber, and the suction plate is integrally provided with the air volume adjusting plate, when the suction plate is attached and detached,
At the same time, the air volume adjusting plate is also integrally attached and detached. Therefore, when cleaning the drain pipe etc. under the suction plate, it is necessary to remove the suction plate and the air volume adjustment plate from the cooling showcase.
At the same time, since the air volume adjusting plate can be removed, the work of removing the air volume adjusting plate is not required. As a result, cleaning work and the like can be easily performed.

Further, there are cases where suction plates integrally provided with an air volume adjusting plate are respectively provided before and after the cooling showcase, and projecting members for preventing erroneous installation are arranged. By the way, since the direction of installation of the air volume adjustment plate is determined, there are two types of suction plates: one installed on the front side of the cooling showcase and one installed on the rear side.
However, since the projection member for preventing erroneous installation is provided, it is possible to prevent the suction plate from being installed at an incorrect position. Moreover, since the means for preventing erroneous installation is constituted by the protruding member, the structure for preventing erroneous installation has a very simple structure.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cooling showcase according to the present invention.

2 is a longitudinal sectional view of FIG. 1 and a II-II sectional view of FIG. 4;

FIG. 3 is a sectional view taken along the line III-III of FIGS. 2 and 5;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is an enlarged view of a main part in a VV cross section of FIG. 2;

FIG. 6 is an explanatory view of an attached state of a suction plate.
(A) is a diagram of a normal state, (b) is a diagram of a case where the mounting position is wrong.

FIG. 7 is a perspective view of a projecting member for preventing erroneous installation.

[Explanation of symbols]

 Reference Signs List 1 open showcase (cooling showcase) 16 display room (storage room) 17 product storage and retrieval opening 23 cooling room 25 blower 26, 27 cooling room duct 28 cooler 36 vertical duct 46 air curtain 48 suction port 53 suction plate 55 Air volume adjustment plate 63 Projecting member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F25D 17/08 A47F 3/00

Claims (3)

(57) [Claims] 1. A storage room having an opening for storing and taking out goods at least on a front surface thereof; an air curtain formed in the opening for storing and taking out goods; and a lower part of the storage room. A cooling showcase, comprising: a cooling chamber; and a suction port that forms a suction port for sucking cool air of the air curtain into the cooling chamber, and includes a suction plate that is elongated in the left-right direction at a front end of the cooling chamber. In the chamber, a blower is disposed biased to one side in the left-right direction, and a vertical duct is disposed in the vertical direction at the other end in the left-right direction of the cooling chamber, A cooling room duct is provided between the blower and the vertical duct to guide an air flow from the blower to the vertical duct, and a cooler is installed in the cooling room duct. And, and, as it goes from the other side in the lateral direction on one side,
A cooling showcase, wherein an air flow adjusting plate for reducing a cross section of a cool air flow in the suction plate is provided along the suction plate. 2. The cooling show according to claim 1, wherein said suction plate is detachably attached to said cooling chamber, and said air volume adjusting plate is integrally provided on said suction plate. Case. 3. A storage room having openings for storing and taking out the goods at least on both front and rear sides, air curtains respectively formed at the openings for storing and taking out the goods before and after, and below the storage room. A cooling chamber is provided, and at the front end and the rear end of the cooling chamber, a suction plate is provided that is elongated in the left-right direction, and the front and rear suction plates are each provided with the air curtain. In a cooling showcase having a cool air suction port for sucking cool air into the cooling chamber, a blower is disposed in the cooling chamber so as to be biased to one side in the left-right direction. At the other end of the direction, a vertical duct is disposed in the vertical direction, between the blower and the vertical duct, the air flow from the blower to the vertical duct Ku cooling chamber duct is provided, this cooling chamber duct cooler is installed, and, as it goes from the other side in the lateral direction on one side,
An air volume adjusting plate for reducing the cross section of the cool air flow in the suction plate is provided integrally with each of the suction plates, and when the front and rear suction plates are installed at regular positions in the cooling chamber, In the case where the front and rear suction plates are erroneously installed at the front and rear positions without preventing the installation of the air volume adjustment plate, a projecting member for preventing erroneous installation that contacts the air volume adjustment plate and prevents the installation is provided. A cooling showcase that is provided.