JP5736542B2 - Open showcase - Google Patents

Description

  In the present invention, a display chamber is formed in a heat insulating wall that opens to the front surface, and cool air is discharged from a discharge port at the upper part of the opening of the display chamber and sucked from a suction port at the lower part of the opening, whereby the cool air is The present invention relates to an open showcase comprising an air curtain.

  Conventionally, as shown in, for example, Patent Document 1, this type of showcase is provided with a partition plate and a bottom plate inside a heat insulating wall having a substantially U-shaped cross section, and a display chamber is formed inside the partition plate and the bottom plate. In addition, a duct is formed between the outer heat insulating wall. On the other hand, at the upper and lower edges of the opening of the heat insulation wall, a discharge port and a suction port communicating with the duct are formed, respectively, a cooler is installed in the duct located on the back, and a blower is installed in the duct located below the bottom plate Then, the cool air exchanged with the cooler by this blower is discharged from the discharge port toward the suction port, and the air is sucked from the suction port, thereby forming a cold air curtain in the opening and cooling the display chamber.

  At this time, a plurality of slits were formed in the suction port for sucking the cold air forming the air curtain into the duct at a height substantially equal to or lower than the opening lower edge of the heat insulating wall. A suction port cover is formed. In the configuration of Patent Document 1, a slit opened toward the upper front of the display chamber is formed on the rear side partitioned by the partition wall, and a slit opened toward the front of the display chamber further than the slit on the front side. Is formed.

  In addition, in the showcase 100 shown in FIG. 9, the bottom plate 103 that divides the display chamber 101 and the lower duct 102 is positioned close to the shelf 104 installed in the lowermost stage in the display chamber 101. In addition to being provided, a suction port cover 107 that is substantially flush with the opening lower edge 106 of the heat insulating wall 105 and covers the suction port of the duct 102 is provided at a position one step below the front portion. A plurality of vent holes 108 and 109 are formed in the upper surface of the suction port cover 107 and the front portion of the bottom plate 103 at a position higher than the suction port cover 107.

  However, in such a configuration, the suction port cover 107 in which the vent hole 108 is formed with respect to the discharge port formed at the upper edge of the opening of the heat insulating wall 105 is substantially flush with the lower edge of the opening of the heat insulating wall 105, or from this. Since it is provided at a position lowered to a lower position, the vertical distance of the air curtain becomes large, and the air curtain is disturbed. As a result, there is a problem that outside air having a high humidity and high temperature is easily caught in the air curtain, and the cooling performance of the showcase is lowered.

  Further, the area of the vent hole 108 formed in the suction port cover 107 is limited to that formed in a substantially horizontal plane from the front end of the lowermost shelf 104 to the rear end of the opening lower edge 106 of the heat insulating wall 105. For this reason, it is not possible to secure a sufficient suction flow rate of the cold air forming the air curtain, leading to a cold air leak.

  Therefore, in the showcase 110 shown in FIG. 10, the suction port cover 111 is formed so that the front portion of the bottom plate 103 is inclined downward toward the opening lower edge 106 of the heat insulating wall 105 and inclined toward the upper front. A plurality of vent holes 112 are formed in 111, and a vent hole 109 is formed in the bottom plate 103 located below the front portion of the shelf 104.

JP 7-91807 A

  The configuration of FIG. 10 can increase the vent hole area as compared with the horizontal configuration of FIG. 9 by forming the suction port cover 111 with the vent hole 112 inclined. It becomes. However, similarly to the configuration of Patent Document 1 as described above, each vent 112 (slit) is open toward the upper front of the display chamber. Therefore, as shown by the broken line arrow in FIG. It becomes easy to inhale the air from 11 upper front. In particular, as shown in FIGS. 9 and 10, since a vent hole 109 communicating with the duct is also formed in the bottom plate 103 positioned below the front part of the lowermost shelf 104, the air sucked from the vent hole 109. Flows in between the front part of the shelf 104 and the bottom plate 103 and forms an air flow that promotes air inflow from the front of the display chamber 11.

  In the open showcase with a large opening in the front of the display room, a cool air curtain is formed in an orderly manner from the upper edge to the lower edge of the opening, thereby suppressing the cooling air leakage in the display room and improving the cooling performance. In this way, each vent hole of the suction port cover that covers the suction port is formed in the upper front of the display chamber with respect to the discharge port formed by opening downward at the upper edge of the opening of the heat insulating wall. If the air is formed toward the outside, the outside air (warm air) in the upper front of the display room is entangled in the air curtain, causing a disturbance, causing cold air leakage in the display room, and forced to enter the display room. As a problem, the cooling performance is deteriorated.

  Therefore, the present invention has been made to solve the conventional technical problem, and a cold air curtain is appropriately configured at the opening of the display chamber to suppress the cooling air leakage in the display chamber and to improve the cooling performance. Provide an open showcase that can help

In order to solve the above-described problems, the open showcase of the present invention has a display chamber formed in a heat insulating wall that opens to the front, and discharges cold air from an upper discharge opening of the display chamber, and a suction opening at the lower opening. A cold air curtain is formed at the opening of the display chamber by sucking from the bottom plate of the display chamber, the duct is formed between the bottom plate and the heat insulating wall, and communicates with the suction port; a suction inlet cover for covering the suction port located on the front side of the bottom plate, is disposed in the display chamber, comprising a movable shelf which is capable pulled out forward by both slide rail, inlet cover, from opposite sides of slide rail It is located on the inside and stands up from the lower edge of the opening of the heat insulation wall. A plurality of ventilation holes are formed on the upper wall, and the bottom surface of the display chamber behind the suction port cover is closed by the bottom plate. Have It is characterized in.

  The invention of claim 2 is characterized in that, in the above-mentioned invention, the suction port cover and the bottom plate are integrally formed.

According to a third aspect of the present invention, in the above inventions, the upper wall of the suction port cover has a rear inclined wall portion directed obliquely upward and forward, and a front inclination directed obliquely upward and rearward located on the front side of the rear inclined wall portion. It has a V-shaped cross section consisting of wall portions, and the vent holes are formed in the rear inclined wall portion and the front inclined wall portion, respectively, and are arranged at positions symmetrical with respect to the V-shaped center line. .

The invention of claim 4 is the above invention, wherein the connecting portion between the rear inclined wall portion and the front inclined wall portion, which is the bottom of the upper wall of the suction port cover, is located above the lower opening edge of the heat insulating wall, Both ends of the space on the upper wall are open to the display room.

The invention of claim 5 is characterized in that, in each of the above inventions, the front wall of the suction port cover located above the lower edge of the opening of the heat insulating wall is an advertising surface.

  According to the present invention, the display chamber is configured in the heat insulating wall that opens to the front surface, and cool air is discharged from the discharge port at the top of the opening of the display chamber and sucked from the suction port at the bottom of the opening, thereby opening the display chamber. In the open showcase comprising a cool air curtain, the display is constructed between the bottom plate of the display room, the bottom plate and the heat insulating wall, a duct communicating with the suction port, and the suction port located on the front side of the bottom plate. A suction port cover for covering is provided, and the suction port cover stands above the lower edge of the opening of the heat insulating wall, and a plurality of vent holes are formed on the upper wall, so that the position of the vent hole of the suction port cover is determined. By making it higher than the opening lower edge of the heat insulating wall, the distance from the discharge port can be shortened.

  As a result, most of the cool air discharged from the discharge port can be sucked into the duct by the vent hole formed in the suction port cover, and it becomes possible to sufficiently secure the cool air suction flow rate forming the air curtain. . Therefore, the air curtain can be formed in an orderly manner, heat energy loss due to the entrainment of outside air can be reduced, and the cooling performance of the entire showcase can be improved.

  In addition to the above, the bottom surface of the display chamber behind the suction port cover is closed by the bottom plate, so that it is formed by being sucked in between the shelf and the bottom plate installed in the display chamber. It is possible to avoid the generation of airflow that promotes air inflow from the front of the display room. For this reason, it is possible to further reduce the entrainment of outside air from the front of the display chamber, and to realize the formation of a more stable cold air curtain.

In particular, it has a movable shelf installed in the display room and can be pulled out forward by slide rails on both sides, and the suction cover is located inside the slide rails on both sides, so that the movable shelf is pulled out to the front. In this case, it is possible to prevent the suction port cover standing up above the lower edge of the opening of the heat insulating wall from interfering with the slide rails on both sides of the movable shelf.

  According to the invention of claim 2, in addition to the above-mentioned invention, the suction port cover and the bottom plate are integrally formed, so that the number of parts can be reduced and the assembling workability is improved.

According to the invention of claim 3 , in addition to each of the above-mentioned inventions, the upper wall of the suction port cover is located on the front side of the rear inclined wall portion and the rear inclined wall portion obliquely upward and rearward. Because it has a V-shaped cross section consisting of a directed front inclined wall portion, the vent holes are formed in the rear inclined wall portion and the front inclined wall portion, respectively, and are arranged at positions symmetrical with respect to the V-shaped center line. The cold air discharged from the discharge ports above the vent holes formed in the rear inclined wall portion and the front inclined wall portion can be sucked.

  At this time, since the rear inclined wall portion is formed so as to be inclined obliquely upward and forward, cold air from the front upper side of the display chamber is sucked from the vent hole of the rear inclined wall portion. Since the front inclined wall portion is formed so as to be inclined obliquely upward and rearward, a cold airflow sucked from behind is formed from the vent hole of the front inclined wall portion, and thereby, the cold airflow sucked from the front upper side of the display room Therefore, it is possible to make the flow of the suction air substantially from the direction of the discharge port.

  Therefore, it is possible to remarkably reduce the inconvenience of the outside air in front of the display room being caught in the air curtain, and it is possible to realize the formation of a stable air curtain. As a result, it is possible to improve the cooling performance.

  In addition, since the suction port cover is formed in a V-shaped cross section in this way, the vent hole formed in the front inclined wall portion located on the front side may be difficult to see from the front of the showcase. In addition, a large number of vent holes formed to ensure cooling performance are less likely to appear on the appearance. Thereby, the appearance can be improved.

According to invention of Claim 4 , in addition to the said invention, the connection part of the back inclination wall part used as the bottom of the upper wall of a suction inlet cover and a front inclination wall part is located above the opening lower edge of a heat insulation wall. Since both side ends of the space on the upper wall are open in the display room, they are collected in the connection portion between the rear inclined wall portion and the front inclined wall portion, that is, in the V-shaped bottom portion. Waste dust can be swept out from both ends of the space on the upper wall and swept out along the lower edge of the opening of the heat insulating wall. Thereby, the cleaning property of a suction inlet cover can be improved.

According to the invention of claim 5 , in addition to the above inventions, the front wall of the suction port cover located above the lower edge of the opening of the heat insulating wall serves as an advertising surface, so that the shelf on which products are displayed The description of the product, the advertisement, etc. can be displayed at a position closer to the point, and an effective display can be realized.

It is a perspective view of a showcase to which the present invention is applied. It is a front view of a showcase. It is a vertical side view of a showcase. It is a lower enlarged vertical side view of a showcase. It is an expansion perspective view of a suction inlet cover part. It is an expansion perspective view of a suction inlet cover part. It is a perspective view of a suction inlet cover and a baseplate. FIG. 8 is a plan view of FIG. 7. It is a lower expanded sectional view of the conventional open showcase. It is a lower expanded sectional view of the conventional open showcase.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of an open showcase 1 to which the present invention is applied, FIG. 2 is a front view of the open showcase 1, FIG. 3 is a vertical side view of the open showcase 1, and FIG. 5 is an enlarged perspective view of the suction port cover portion, FIG. 6 is an enlarged perspective view of the suction port cover portion, FIG. 7 is a perspective view of the suction port cover and the bottom plate, and FIG. 8 is a plan view of FIG. Yes.

  In the open showcase 1 of the present invention, a main body 2 is constituted by a heat insulating wall 3 having a substantially U-shaped cross section that opens to the front surface, and side plates 4 attached to both sides of the heat insulating wall 3. A back panel 6 is disposed on the back surface, and a duct 9 is formed between the back panel 6 and the heat insulating wall 3. Further, a bottom plate 10 extending forward is provided at the lower end of the rear panel 6, and a ceiling panel 7 is provided at the upper end of the rear panel 6 with a predetermined distance from the ceiling portion 3A of the heat insulating wall 3. A display chamber 8 that opens to the front is formed inside the back panel 6, the bottom plate 10, and the ceiling panel 7. A lower duct 11 communicating with the duct 9 is formed below the bottom plate 10 with a predetermined distance from the bottom wall 3B of the heat insulating wall 3.

  In this display chamber 8, a plurality of movable shelves 25 ... for product display are installed vertically. Each movable shelf 25 is formed of a pair of brackets (not shown) that are formed on the left and right sides and that are detachably locked to a shelf column provided on the back of the storage chamber 8, a shelf plate 26, and the like. 26 can be pulled forward (movable back and forth) with respect to the bracket by slide rails 27 provided on both sides.

  A machine room 28 is formed below the heat insulating wall 3, and a compressor, a condenser, and a condenser (not shown) that constitute a refrigeration cycle of a cooling device together with a cooler 15 described later in the machine room 28. A blower or the like is provided. The front surface of the machine room 28 is closed by a front panel 29 so as to be freely opened and closed.

  On the other hand, the upper edge of the front opening 12 of the heat insulating wall 3 is provided with a discharge port 13 that opens downward and is attached with a honeycomb material (not shown) as a rectifying member. The discharge port 13 is located at the upper part of the opening of the display chamber 8 and communicates with the duct 9. The front end of the lower duct 14 configured to communicate with the duct 9 is provided with a suction port 16 that is located at the lower opening of the display chamber 8 and opens to the upper surface.

  A cooling fan 17 for supplying cool air into the display chamber 8 is disposed in the lower duct 14 below the bottom plate 10, and cooling that constitutes a refrigeration cycle of the cooling device is provided in the duct 9 of the display chamber 8. A container 15 is provided vertically.

  Here, the suction port cover 18 that covers the bottom plate 10 and the suction port 16 will be described in detail. In the present embodiment, the bottom plate 10 constituting the lower duct 14 with a predetermined gap between the bottom wall 3B of the heat insulating wall 3 is configured across the left and right ends of the heat insulating wall 3, and will be described later. The bottom surface of the display chamber 8 behind 18 is closed.

  As shown by X in FIG. 2, the bottom plate 10 is arranged with a predetermined dimension and higher than the opening lower edge 12 </ b> A of the heat insulating wall 3, and both ends thereof are substantially the same height as the opening lower edge 12 </ b> A of the heat insulating wall 3. A stepped portion 10A is formed to be bent one step lower in size. In this embodiment, the step portion 10A has a predetermined dimension (see FIG. 2) from the side end of the heat insulating wall 3 so as to avoid the slide rails 27, 27 of the movable shelf 25 installed at the lowest stage in the display chamber 8. Y).

  Further, as shown in FIG. 7, the rear end of the bottom plate 10 is a rear plate 10B bent upward by a predetermined dimension, and the rear plate 10B is disposed in contact with the front surface of the rear panel 6. By being provided, the inside of the lower duct 14 and the inside of the duct 9 are configured to communicate with each other.

  In the present embodiment, a suction port cover 18 that covers the suction port 16 is provided on the front side of the bottom plate 10. Here, the suction port cover 18 is integrally formed at the front end over both end portions of the bottom plate 10 excluding both stepped portions 10A and 10A.

  That is, the suction port cover 18 is configured to stand up to a predetermined dimension and upward from the opening lower edge 12A of the heat insulating wall 3 in the same manner as the bottom plate 10, and the upper wall 18A is a rear inclined wall oriented obliquely upward and forward. The section 19 has a V-shaped cross section including a front inclined wall portion 20 which is positioned on the front side of the rear inclined wall portion 19 and directed obliquely upward and rearward.

  Each of the rear inclined wall portion 19 and the front inclined wall portion 20 has a plurality of vent holes 19A at a target position with respect to the center line of the V-shaped cross section (indicated by a broken line T in FIG. 8). .., 20A .. are formed. In the present embodiment, each of the air holes 19A and 20A is constituted by a long hole extending in the inclination direction of each inclined wall portion. Therefore, each hole area can be enlarged in the limited front-rear width dimension.

  And the connection part 18B of these back inclination wall parts 19 used as the bottom of the upper wall 18A of the suction inlet cover 18, and the front inclination wall part 20 is the level | step-difference part of the baseplate 10 comprised integrally with this suction inlet cover 18 Positioned above 10A, both side ends of the space on the upper wall 18A are formed open toward the respective step portions 10A. That is, the connecting portion 18A between the rear inclined wall portion 19 and the front inclined wall portion 20 is positioned above the opening lower edge 12A of the heat insulating wall 3, and both side ends thereof are open into the display chamber 8. . In this embodiment, as shown in FIG. 2, the connecting portion 18B between the rear inclined wall portion 19 and the front inclined wall portion 20 is set to be higher than the opening lower edge 12A of the heat insulating wall by a predetermined dimension Z. Is done.

  Further, the front wall 18C of the suction port cover 18 is configured to stand up to a predetermined dimension and above the opening lower edge 12A of the heat insulating wall 3, but the front surface is located in the display chamber 8 at the lower portion of the display chamber 8. It is used as an advertising surface (POP) for products etc. to be displayed on the market.

  Note that the suction port cover 18 is positioned on the display chamber 8 side of the opening lower edge 12A of the heat insulating wall 3 as shown in FIG. Even if condensation or the like occurs, it falls to the display chamber 8 side along the front surface of the front wall 18C, the rear inclined wall portion 19 and the front inclined wall portion 20, and is appropriate without wetting the outside of the showcase 1 Can be processed.

  With the above configuration, when the cooling fan 17 disposed in the lower duct 14 is operated, the cool air cooled by the cooler 15 disposed in the duct 9 rises in the duct 9 and is displayed. It is discharged from the discharge port 13 at the upper part of the opening of the chamber 8 toward the lower part of the opening. A cool air curtain is formed in the opening 12 of the display chamber 8 by sucking the discharged cool air from the suction port 16 formed in the lower portion of the opening 12.

  At this time, in this embodiment, the suction port cover 18 covering the suction port 16 stands up above the opening lower edge 12A of the heat insulating wall 3, and a plurality of vent holes 19A, 20A are formed in the upper wall 18A. Therefore, the position of the air hole that sucks in the cold air that forms the air curtain can be made higher than the opening lower edge 12A of the heat insulating wall 3, and the distance from the discharge port 13 can thereby be shortened.

  Therefore, most of the cool air discharged from the discharge port 13 toward the lower portion of the opening can be sucked into the lower duct 14 by the vent holes 19A and 20A formed in the suction port cover 18, and the cool air suction forming the air curtain is formed. A sufficient flow rate can be secured. Therefore, the air curtain can be formed in an orderly manner, the loss of heat energy due to the entrainment of outside air can be reduced, and the cooling performance of the entire showcase 1 can be improved.

  In particular, in the present embodiment, since the bottom surface of the display chamber 8 behind the suction port cover 18 is closed by the bottom plate 10, the shelf 25 installed at the lowermost stage in the display chamber 8, as in the prior art, It is possible to avoid the generation of an air flow that promotes the inflow of air from the front of the display chamber 8 formed by being sucked in between the bottom plate 10 and the bottom plate 10.

  Therefore, the entrainment of the outside air from the front of the display chamber 8 can be further effectively reduced, and the formation of a more stable cold air curtain can be realized.

  Further, as described above, the upper wall 18A of the suction port cover 18 includes the rear inclined wall portion 19 oriented obliquely upward and forward, and the front inclined wall positioned on the front side of the rear inclined wall portion 19 and oriented obliquely upward and rearward. Since it has a V-shaped cross section composed of the portion 20, the cool air discharged from the upper discharge port 13 is sucked through the vent holes 19A and 20A formed in the rear inclined wall portion 19 and the front inclined wall portion 20, respectively. be able to.

  At this time, since the rear inclined wall portion 19 is formed obliquely upward and forward, cold air from the front upper side of the display chamber 8 is sucked from the vent hole 19A of the rear inclined wall portion 19, Since the front inclined wall portion 20 provided in front of the front inclined wall portion 20 is formed obliquely upward and rearward, a cold airflow sucked from the rear side through the vent hole 20A of the front inclined wall portion 20 is formed. 8 can be corrected, and the flow of the intake air can be made substantially from the direction of the discharge port 13 (see the broken line in FIG. 4).

  Therefore, it is possible to remarkably reduce the inconvenience that the outside air in front of the display chamber 8 is caught in the air curtain, and it is possible to realize the formation of a stable air curtain. As a result, it is possible to improve the cooling performance.

  In addition, since the suction port cover 18 is formed in a V-shaped cross section extending in the left-right direction in this way, the vent hole 20A formed in the front inclined wall portion 20 located on the front side is provided in the showcase 1. The structure can be made difficult to see from the front, and the air holes 20 </ b> A that are formed so as to ensure cooling performance are less likely to appear on the appearance. Thereby, the appearance can be improved.

  Furthermore, since the suction port cover 18 is located in the lower part of the front opening 12 and has a V-shaped cross section, the connection portion between the rear inclined wall portion 19 and the front inclined wall portion 20 which becomes the bottom of the upper wall 18A. Although dust or the like easily collects in 18B, since both end portions of the space on the upper wall 18A are opened toward the stepped portion 10A of the bottom plate 10 (inside the display chamber 8), the dust is placed on the upper wall 18A. It can be swept out from both side ends of the upper space, received on the stepped portion 10A, and swept out to the outside along the opening lower edge 12A of the heat insulating wall 3 from the front end of the stepped portion 10A. Thereby, it can clean safely, without removing especially the suction inlet cover 18 grade | etc., From a main body.

  In the present embodiment, as described above, the bottom plate 10 is disposed with a predetermined dimension and higher than the opening lower edge 12A of the heat insulating wall 3, and both ends thereof are substantially the same height as the opening lower edge 12A of the heat insulating wall 3. The suction port cover 18 is integrally formed at the front end over both end portions of the bottom plate 10 except for both step portions 10A and 10A. ing.

  Therefore, the suction port cover 18 is configured to be positioned on the inner side of the slide rails 27 on both sides of the movable shelf 25 installed in the display chamber 8, and extends to the rear of the suction port cover 18. Since both sides are stepped portions 10A that avoid the slide rail 27, the suction port cover that stands up above the opening lower edge 12A of the heat insulating wall 3 when the lowermost movable shelf 25 is pulled forward. Interference with the slide rails 27 on both sides of the movable shelf 25 can be avoided in advance. Thereby, the movable shelf 25 can be pulled out to the front without any trouble.

  In the present embodiment, since the suction port cover 18 as described above is constructed integrally with the bottom plate 10, the number of parts can be reduced, and the assembly workability is improved.

  The front wall 18C of the suction port cover 18 stands above the opening lower edge 12A of the heat insulating wall 3, but is closer to the shelf 25 on which products are displayed by using it as an advertising surface as described above. An explanation of the product, an advertisement of the manufacturer of the product, etc. can be displayed at the position, and an effective display can be realized.

DESCRIPTION OF SYMBOLS 1 Open showcase 2 Main body 3 Heat insulation wall 6 Back panel 8 Display room 9 Duct 10 Bottom plate 10A Step part 11 Lower duct 12 Front opening 12A Lower edge 13 Outlet 14 Lower duct (duct)
DESCRIPTION OF SYMBOLS 15 Cooler 16 Suction port 17 Cooling fan 18 Suction port cover 18A Upper wall 18B Connection part 18C Front wall 19 Rear inclined wall part 19A, 20A Vent hole 20 Front inclined wall part 25 Movable shelf 27 Slide rail

Claims (5)

A display room is formed in the heat insulation wall that opens to the front, and cool air is discharged from the discharge port at the upper part of the opening of the display room and sucked from the suction port at the lower part of the opening, thereby forming a cold air curtain at the opening of the display room In an open showcase consisting of
A bottom plate of the display room;
A duct configured between the bottom plate and the heat insulating wall and communicating with the suction port;
A suction port cover that covers the suction port located on the front side of the bottom plate ;
A movable shelf that is installed in the display room and that can be pulled forward by slide rails on both sides ,
The suction port cover is located on the inner side of the slide rails on both sides and rises up to the lower edge of the opening of the heat insulating wall, and a plurality of ventilation holes are formed on the upper wall, and the suction port cover An open showcase, wherein a bottom surface of the display chamber at a rear side is closed by the bottom plate.   The open showcase according to claim 1, wherein the suction port cover and the bottom plate are integrally formed. The upper wall of the suction port cover has a V-shaped cross section composed of a rear inclined wall portion directed obliquely upward and forward and a front inclined wall portion positioned on the front side of the rear inclined wall portion and directed obliquely upward and rearward. The said vent hole is formed in the said back inclination wall part and the front inclination wall part, respectively, and is arrange | positioned in the position which becomes symmetrical with respect to the centerline of the said V-shape. Open showcase as described. The connecting portion between the rear inclined wall portion and the front inclined wall portion, which is the bottom of the upper wall of the suction port cover, is positioned above the lower edge of the opening of the heat insulating wall, and both sides of the space on the upper wall. The open showcase according to claim 3, wherein an end is open in the display room . The open showcase according to any one of claims 1 to 4, wherein a front wall of the suction port cover located above the lower edge of the opening of the heat insulating wall is an advertisement surface. .

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