JP2006194513A - Showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a showcase capable of easily changing a blowing height when blowing out cold air sent from a back face duct formed in a heat insulating box body from a cold air discharge opening of a shelf front end. <P>SOLUTION: The showcase 1 is comprised by composing a display chamber 11 in a heat insulating wall 3, and vertically providing a plurality of shelf devices 4 for commodity display across the display chamber 11. It is provided with a back face panel 6 positioned on a back face of the display chamber 11 for composing the back face duct 9 for raising the cold air between it and the heat insulating wall 3, and a shelf duct member 5 detachably attached to the shelf device 4, with a rear end communicated with the back face duct 9 by a communication part 41 of the back face panel 6, and a shelf lower cold air discharge opening 27 composed on a front end. Blocking plates 45 and 47 blocking the communication part 41 of a portion other than a portion corresponding to the shelf duct member 5 are provided in a rear part of the shelf duct member 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a showcase in which a display room is formed in a heat insulating wall, and a shelf for displaying merchandise is installed in the display room.

  Traditionally, showcases installed in supermarkets and convenience stores, etc., form a duct between the heat insulation wall and a partition plate provided with a space inside, and configure a display room inside the partition plate. The duct is provided with a cooler and a blower, and cool air exchanged with the cooler is blown out from the duct into the display room.

  In this case, a cold air discharge port is formed at the upper edge of the opening of the display chamber, and a cold air suction port is formed at the lower edge of the opening, both of which communicate with the duct. Then, cold air was blown out from the cold air discharge port at the upper edge of the opening, the display chamber was cooled while forming an air curtain, and the blown cold air was sucked from the cold air suction port at the lower edge of the opening.

Further, a plurality of shelves are installed in the display room. A shelf duct (cold air passage) is formed inside the shelf, and a rear end communicates with a rear duct at the back of the heat insulating box. In addition, a cold air discharge port communicating with the shelf duct is formed at the front end of the shelf. As a result, the cool air that has risen in the rear duct is drawn into the shelf duct via the communicating portion, and discharged from the cool air discharge port formed at the front end of the shelf, thereby cooling the product in the display room below the shelf. (Refrigerated area, see Patent Document 1). The product in the display room above the shelf was heated by an electric heater attached to the shelf (warming area).
JP 2000-258031 A

  In this way, the display room of a single showcase can be divided into a warming area and a refrigerated area, which can be used in the upper and lower areas. Whether it is a warm storage area and the lower part is a cold storage area changes. Therefore, in the past, shelf ducts were configured on multiple shelves, and the size of the hot and cold storage areas was changed by changing the shelf ducts that draw in cold air. It was necessary to construct a step, which caused the cost to rise.

  The problem is that the display room is a non-cooled area (a non-cooled area instead of the warmed area. Therefore, in this case, an electric heater is not provided, and as a result, the refrigerated area in the display room is only reduced) and refrigerated. The same applies to the case where the area is used separately.

  Therefore, the present invention has been made to solve the related technical problem, and when the cold air from the rear duct formed in the heat insulation box is blown out from the cold air outlet at the front end of the shelf, It is an object of the present invention to provide a showcase that can be easily changed.

  The showcase of the present invention comprises a display room in a heat insulating wall, and a plurality of product display shelves are erected up and down in the display room, and is located on the back of the display room. A rear panel for constructing a rear duct in which cool air rises between the wall and a shelf, which is detachably attached to the shelf, and the rear end communicates with the rear duct at the rear panel communication portion, and a cold air outlet at the front end And a closing plate that closes a communication portion other than the portion corresponding to the shelf duct member is provided at the rear of the shelf duct member.

  The showcase of the invention of claim 2 is characterized in that, in the above invention, the closing plate extends above and below the rear portion of the shelf duct member.

  The showcase of the invention of claim 3 is characterized in that, in each of the above inventions, the size of the closing plate extending from the rear portion of the shelf duct member can be changed.

  According to a fourth aspect of the present invention, in the above inventions, the closing plate is pivotally supported at the rear portion of the shelf duct member.

  According to the present invention, in a showcase in which a display room is configured in a heat insulating wall, and a plurality of product display shelves are erected up and down in the display room, the heat insulating wall is positioned on the back of the display room, The rear panel for configuring the rear duct where the cool air rises between the rear panel and the shelf is detachably attached, the rear end communicates with the rear duct at the rear panel communication portion, and the cold air outlet is configured at the front end Therefore, by changing the shelf to which the shelf duct member is attached, the cold air blowing height from the front end of the shelf can be changed.

  In addition, since the rear portion of the shelf duct member is provided with a closing plate that closes the communication portion other than the portion corresponding to the shelf duct member, the lower refrigeration region and the upper refrigeration region or Even when the shelf to which the shelf duct member is attached or the shelf to which the shelf duct member is attached is changed in the vertical position according to the quantity or size of the product, for example, when divided into non-cold regions, the shelf duct member In accordance with the position, it is possible to close the part other than the corresponding part with the closing plate.

  Accordingly, when changing the mounting position of the shelf duct member or changing the height position of the shelf, it is possible to draw cold air into the shelf duct member without any trouble. Furthermore, according to the present invention, since the closing plate is provided on the shelf duct member, the closing plate moves as the shelf duct member moves, thereby simplifying the closing operation of the communication portion. Will be able to.

  According to the invention of claim 2, in the above invention, the closing plate extends upward and downward from the rear part of the shelf duct member, so that the closing position can be adjusted over a wide range.

  According to the invention of claim 3, in each of the above inventions, the closing plate can be changed in dimension extending from the rear portion of the shelf duct member, so that the closing position of the communicating portion by the closing plate can be easily adjusted. Will be able to.

  According to the invention of claim 4, in each of the above inventions, the closing plate is pivotally supported at the rear part of the shelf duct member so that the operation of attaching the shelf duct member to the shelf is facilitated. Will be able to.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a side view of a showcase 1 to which the present invention is applied, FIG. 2 is a front view of the showcase 1, FIG. 3 is a front view of the showcase 1 with a shelf device 4 removed, and FIG. FIG. 5 is a perspective view of the shelf duct member 5, FIG. 6 is an enlarged front view of the shelf duct member 5, and FIG. 7 is a view of the shelf duct member 5. A side view is shown.

  The showcase 1 has a main body constituted by a heat insulating wall 3 having a substantially U-shaped cross section that opens to the front surface and side plates (not shown) attached to both sides of the heat insulating wall 3. A back panel 6 and a top panel 7 are arranged on the top surface, respectively, and a back duct 9 is formed between the back panel 6 and the top panel 7 and the heat insulating wall 3 from the back to the top. Details of the back panel 6 will be described later. In addition, a deck pan 10 extending forward is provided at the lower end of the back panel 6, and a display chamber 11 is formed inside the back panel 6, the top panel 7, and the deck pan 10. A lower duct 14 communicating with the rear duct 9 and constituting a part thereof is formed below the deck pan 10.

  The upper end of the rear duct 9 communicates with the upper cool air discharge port 16 positioned at the upper edge of the front opening of the display chamber 11, and the front end of the lower duct 14 is positioned at the lower edge of the front opening of the display chamber 11 and includes a plurality of slits. It communicates with the cold air inlet 17. A blower 19 for supplying cold air is disposed in the lower duct 14 below the deck pan 10, and a cooler 15 constituting a refrigeration cycle of the cooling device is vertically installed in the rear duct 9 behind the display chamber 11. Has been.

  In the display chamber 11, a plurality of shelves 4 serving as shelves according to the present invention are installed in a plurality of stages, and in this embodiment, five stages are arranged vertically. Each shelf device 4 includes a pair of left and right brackets 21, 21 having hook-like claws protruding rearward at the rear end, a shelf plate 22 that is detachably attached across the brackets 21, 21, It is comprised from the electric heater for heating (not shown) attached to the lower surface of the shelf board 22.

  And the nail | claw of the said bracket 21 is detachably engaged with the attachment holes 24 ... formed in multiple numbers by the shelf support | pillars 23 and 23 attached to the front both sides of the back panel 6 in the display chamber 11 vertically. Thus, each shelf device 4 is installed in the display chamber 11 so that the vertical position (height) can be changed. In this case, the numbers and colors corresponding to the products are assigned to the shelf columns 23 (the predetermined number of the shelf columns 23) so that the shelves can be efficiently arranged according to the height dimension of the products to be displayed (cans, plastic bottles, etc.). It should be attached to the height position).

  In each figure, 5 is a shelf duct member of the present invention. A shelf duct 26 (see FIGS. 6 to 8) is formed in the shelf duct member 5, and the front end of the shelf duct 26 opens obliquely forward and downward at the front end of the shelf duct member 5. The rear end is open at a cold air inlet 28. Further, the shelf duct member 5 is provided with a damper member 29 attached to the upper side of the cold air inlet 28 so as to be movable in the front-rear direction. Further, engaging portions 31 are provided on both sides of the shelf duct member 5.

  A closing plate 45 is attached to the rear upper surface of the shelf duct member 5. The closing plate 45 is pivotally supported by pivot members 46, 46 around the rear end of the shelf duct member 5. Therefore, the closing plate 45 is always in a state of being prone to the upper surface of the shelf duct member 5 by its own weight. The closing plate 45 is formed with elongated holes 45 </ b> A and 45 </ b> A extending vertically so that the attachment position to the back panel 6 or the back panel member 36 described later can be adjusted.

  Further, a closing plate 47 is attached to the rear lower surface of the shelf duct member 5 in the same manner as the upper surface. The closing plate 47 is also pivotally supported by pivotal members 48, 48 around the rear end of the shelf duct member 5. However, the closing plate 47 is always in a suspended state due to its own weight. The closing plate 47 is formed with screw holes 47A and 47A for fixing to the back panel 6 or the back panel member 36.

  On the other hand, the left and right brackets 21 of each shelf apparatus 4... Are respectively formed with holding rails 32 that engage with the engaging portions 31 of the shelf duct member 5 in a detachable manner. . Then, the holding rails 32, 32 are engaged with the holding rails 32, 32 by inserting the holding rails 32, 32 into the left and right engaging portions 31, 31 from the rear end, and the shelf duct member 5 is bracketed from the front. 21 and 21 are detachably attached.

  In the state where the shelf duct member 5 is attached to the shelf device 4, the shelf duct member 5 is located below the shelf plate 22 of the shelf device 4, and the front shelf under-cooling air discharge port 27 is the front opening of the display chamber 11. Will open downward. Further, the rear part of the shelf duct member 5 extends to the back side by a predetermined dimension from the rear end of the shelf plate 22 of the shelf device 4.

  A plurality of horizontally long communication portions 41 are formed on the upper portion of the back panel 6 as shown in FIG. The communication portion 41 is blocked by the closing plates 45 and 47 and the plurality of back panel members 36 attached to the shelf duct member 5 as described in detail below.

  That is, for example, when the shelf duct member 5 is attached to the shelf device 4 in the second stage from the top, first, the rear panel member 36 that closes the communication portion 41 formed behind the shelf device 4 is removed, and the communication portion 41 is released. Thereafter, the shelf duct member 5 is inserted between the brackets 21 and 21 of the shelf device 4 from the front and attached. At this time, the cold air inlet 28 of the shelf duct member 5 is made to correspond to the communication portion 41. Then, the closing plate 45 located behind the shelf plate 22 and pivotally supported on the upper surface of the shelf duct member 5 is rotated upward, and is positioned above the closing plate 45 and the shelf device 4. The back panel member 36 is partially overlapped with each other, and a screw hole (not shown) formed in the back panel member 36 and a long hole 45 </ b> A formed in the closing plate 45 are superposed and fixed with the decorative screw 40.

  On the other hand, a closing plate 47 pivotally supported on the lower surface of the shelf duct member 5 is partially overlapped with the rear panel member 36 positioned below the shelf device 4 to be formed on the rear panel member 36. The screw hole 36 </ b> A and the screw hole 47 </ b> A formed in the closing plate 47 are polymerized and fixed with the decorative screw 40. It is assumed that the screw hole 36A formed in the upper part of the back panel member 36 is a long hole having a predetermined vertical dimension. When the entire display chamber 11 is refrigerated, the damper member 29 is moved most forward as shown in FIG.

  Thus, the long hole 45A formed in the closing plate 45 and the screw hole 36A formed in the upper portion of the back panel member 36 are formed extending vertically. Therefore, even when the position to which the shelf device 4 is attached is changed up and down, the overlapping amount of the closing plate 45 and the back panel member 36 and the closing plate 47 and the back panel corresponding to the change in the up and down position. By changing the amount of overlap with the member 36, the cold air inlet 28 and the communication portion 41 of the shelf duct member 5 are communicated with each other, and the communication portion 41 located above and below the cold air inlet 28 is connected to the closing plate 45 and It becomes possible to close at 47.

  In this case, since the communication part 41 located above and below the cold air inlet 28 can be closed by the closing plates 45 and 47 attached to the rear part of the shelf duct member 5, for example, the respective communication parts By adjusting the height of all the back panel members 36 that close 41, it becomes possible to work more easily than when adjusting the height position of the communicating portion communicating with the cold air inlet 28.

  The shelf duct 26 communicates with the rear duct 9 by allowing only the cold air inlet 28 at the rear end of the shelf duct member 5 to communicate with the communication portion 41. The damper member 29 protrudes into the rear duct 9 in a state where it is moved most rearward as shown in FIG. 7 and closes the rear duct 9 on the upper side of the communication portion 41. Further, as shown in FIG. 8, in the state of being moved forward most, it moves forward from the rear duct 9. And the protrusion dimension to the back surface duct 9 of this damper member 29 can be adjusted.

  When the blower 19 is operated in this state, the cold air that has exchanged heat with the cooler 15 rises in the rear duct 9 and is discharged from the upper cold air discharge port 16. The discharged cool air cools the inside of the display chamber 11 while forming a cool air curtain at the front opening of the display chamber 11. Then, the circulation that is sucked into the lower duct 14 from the cold air suction port 17 and sucked into the blower 19 again is repeated. As a result, the entire area in the display chamber 11 is cooled to the refrigeration temperature.

  Next, in the case where the upper part of the shelf device 4 from the top is used as a refrigerated area and the lower part is used as a refrigerated area, the damper member 29 is moved most backward, The electric heaters of the second shelf devices 4 and 4 are heated. Since the damper member 29 blocks the cold air upward from the communication portion 41, the cold air discharge from the upper cold air discharge port 16 is eliminated, and instead it is heated by the electric heater. The inside of the display chamber 11 above the apparatus 4 is a warming area.

  On the other hand, the cold air that has collided with the damper member 29 bends forward and enters the shelf duct 26 from the communication portion 41. And it discharges toward the downward direction from the shelf lower air discharge port 27 of the shelf duct member 5 front end. The cold air discharged from the under-shelf cold air outlet 27 constitutes a similar cool air curtain at the front opening of the display chamber 11 below the second-stage shelf device 4 while displaying the display chamber below the second-stage shelf device 4. After being circulated through the inside 11 and cooled, it is sucked from the cold air inlet 17. Thereby, the inside of the display chamber 11 below the shelf apparatus 4 at the second stage becomes a refrigerated area.

  Here, for example, when the inside of the display chamber 11 above the uppermost shelf apparatus 4 is a refrigerated area and the lower part is a refrigerated area, first, the communication portion 41 formed at the rear of the shelf apparatus 4 is provided. The back panel member 36 to be closed is removed, and the communication portion 41 is opened. Thereafter, the decorative screws 40 for fixing the closing plates 45 and 47 attached to the shelf duct member 5 and the respective back panel members 36 are removed, and the shelf duct member 5 is pulled forward. Then, the communication part 41 opened to the back panel 6 by closing the shelf duct member 5 is closed by the back panel member 36.

  Then, the shelf duct member 5 removed from the second shelf device 4 from the top is inserted and attached between the brackets 21 and 21 of the uppermost shelf device 4 from the front. At this time, the cold air inlet 28 of the shelf duct member 5 is made to correspond to the communication portion 41. Then, a closing plate 45 located behind the shelf plate 22 of the shelf device 4 and pivotally supported on the upper surface of the shelf duct member 5 is pivoted upward, so that the closing plate 45 and the shelf device 4 are The rear panel 6 positioned above is partially overlapped with each other, and a screw hole (not shown) formed in the rear panel 6 and a long hole 45A formed in the closing plate 45 are polymerized and fixed with the decorative screw 40. .

  On the other hand, a closing plate 47 pivotally supported on the lower surface of the shelf duct member 5 is partially overlapped with the rear panel member 36 positioned below the shelf device 4 to be formed on the rear panel member 36. The screw hole 36 </ b> A and the screw hole 47 </ b> A formed in the closing plate 47 are polymerized and fixed with the decorative screw 40. When the shelf duct member 5 is moved as described above, the closing plates 45 and 47 are provided at the rear end of the shelf duct member 5, so that the closing plate 45 is moved along with the movement of the shelf duct member 5. , 47 is moved, the closing operation of the communication portion 41 can be simplified. Further, in the gap between the rear end of the shelf plate 22 and the rear panel 6, the respective blocking plates 45 and 47 are pivotally supported by pivot members 46 or 48 around the rear end of the shelf duct member 5. Therefore, it can be made into the state folded to the shelf duct member 5 side. Therefore, workability can be improved.

  Then, the damper member 29 is moved most rearward with the cold air inlet 28 of the shelf duct member 5 corresponding to the communication portion 41. Then, the electric heater of the uppermost shelf device 4 is caused to generate heat. As a result, no cold air is supplied from the uppermost shelf device 4, and this becomes a warm storage area. The inside of the display chamber 11 below the uppermost shelf device 4 is a refrigerated area.

  Here, since the shelf apparatus 4 itself can also change the vertical position, the size and height adjustment of the warm storage area and the refrigeration area may be finely adjusted by moving the shelf apparatus 4.

  In this way, by changing the shelf device 4 to which the shelf duct member 5 is attached, the height of the cold air blowing from the front end of the shelf can be changed, so that the lower refrigeration area and the upper refrigeration in the display chamber 11 In the case of dividing into regions, the convenience and versatility of the showcase 1 can be improved by easily changing the size of each region according to the quantity and size of the product. In particular, in this case, since it is not necessary to configure and place a shelf duct on each shelf device 4, the structure of the shelf device 4 can be simplified and the production cost can be reduced.

  Moreover, since the shelf apparatus 4 is installed so that a vertical position change is possible with respect to the shelf support | pillar 23, the freedom degree of the cold air blowing height change from a shelf front end improves further. Further, the closing plate attached to the shelf duct member 5 includes the closing plate 45 extending upward from the upper surface of the shelf duct member 5 and the closing plate 47 extending downward from the lower surface as described above. In accordance with the position of the shelf apparatus 4 to which the shelf duct member 5 is attached, a communication portion can be formed at a position corresponding to the cold air inlet 28 of the shelf duct member 5, and the attachment position of the shelf duct member 5 can be changed or the shelf can be changed. When the height position of the device 4 is changed, the cool air can be drawn into the shelf duct member 5 without any trouble. Further, since the closing plates 45 and 47 provided on the shelf duct member 5 are provided extending upward and downward, the closing position can be adjusted over a wide range.

  In particular, the communication portion 41 other than that corresponding to the shelf duct member 5 is separately closed by the rear panel member 36... And the closing plates 45 and 47 provided on the rear panel member 36 and the shelf duct member 5 The vertical position of the communication unit 41 can be changed by changing the mutual overlap amount. Therefore, the vertical position of the communication part 41 can be easily changed by changing the overlapping amount of the back panel member 36 and the closing plates 45 and 47 according to the height of the shelf duct member 5.

  In addition to the above embodiment, the closing plate provided in the shelf duct member 5 may be configured as shown in FIG. 9 or FIG.

  That is, in the embodiment shown in FIG. 9, the closing plate 50 is attached to the rear upper surface of the shelf duct member 5. The closing plate 50 is pivotally supported by pivot members 51, 51 around the rear end of the shelf duct member 5. Therefore, the closing plate 45 is always in a state of being prone to the upper surface of the shelf duct member 5 by its own weight. Further, a closing plate 52 is attached to the upper portion of the closing plate 50. The obstruction plate 52 is formed with elongated holes 52 </ b> A and 52 </ b> A extending vertically, and is fixed by a decorative screw 40 that connects the obstruction plate 50 and the obstruction plate 52. Therefore, by adjusting the overlapping amount of the closing plate 50 and the closing plate 52, the closing amount of the connecting portion 41 by the closing plates 50 and 52 can be changed. In the embodiment shown in FIG. 9, the closing plate attached to the rear lower surface of the shelf duct member 5 is configured in the same manner as the closing plate 47 in the above embodiment. However, the closing plate is also composed of two (a plurality) closing plates as in the embodiment, and the closing amount may be changed by adjusting the overlapping amount.

  In the embodiment shown in FIG. 10, two closing plates 55 </ b> A and 55 </ b> B that are connected vertically are attached to the rear upper surface of the shelf duct member 5. These closing plates 55A and 55B are pivotally supported by pivot members 56 and 56 so as to be pivotable forward at the connection points. The closing plate 55 </ b> B positioned on the lower side is pivotally supported by pivot members 57, 57 around the rear end of the shelf duct member 5. Therefore, the closing plate 55B is always in a state of being prone to the upper surface of the shelf duct member 5 by its own weight. At this time, since the closing plate 55A is connected to the closing plate 55B by the pivot member 56, the closing plate 55A can be folded below the closing plate 55B as shown in the perspective view of FIG. Become.

  In addition, screw holes 55C are formed in the upper portions of the respective closing plates 55A and 55B to be connected to the rear panel member 36 with decorative screws, and when the upper closing plate 55A is folded up and stood up. In addition, it is assumed that the screw hole 55C is similarly formed in the closing plate 55A at a position overlapping the screw hole 55C of the lower closing plate 55B.

  Thereby, the obstruction board provided in the shelf duct member 5 can be changed to two kinds of heights, a folded state and an extended state. In the embodiment shown in FIG. 10, the closing plate attached to the rear lower surface of the shelf duct member 5 is configured in the same manner as the closing plate 47 in the above embodiment. However, the closing plate may be configured as in the embodiment.

  Thus, by making the structure which can change the dimension which extends from the rear part of the shelf duct member 5 to the closing plate, the closing position of the communication part 41 by the closing plate can be easily adjusted. In addition, in the limited gap between the rear end of the shelf plate 22 and the back panel 6, a plurality of closing plates are accommodated in a folded state, and the size of the communication portion 41 to be closed is increased by expanding these closing plates. It becomes possible to adjust, and it becomes possible to adjust in a wide range. In particular, the embodiment shown in FIG. 10 is easy because the closing range can be adjusted by adjusting the number of closing plates to be used.

  In the embodiment, the upper part of the shelf device 4 to which the shelf duct member 5 is attached is set as a warming area with an electric heater, but it is used as a non-cold area without energizing the electric heater or without providing an electric heater. May be.

It is a side view of a showcase to which the present invention is applied. It is a front view of the showcase of FIG. FIG. 2 is a front view of the showcase of FIG. 1 with a shelf device removed. FIG. 2 is a perspective view of the showcase of FIG. 1 with a shelf duct member pulled out. It is a perspective view of the shelf duct member of the showcase of FIG. FIG. 6 is an enlarged longitudinal front view of the shelf duct member of FIG. 5. It is a side view of the shelf duct member of FIG. It is another side view of the shelf duct member of FIG. It is a perspective view of the shelf duct member as another Example. It is a perspective view of the shelf duct member as another another Example. It is a side view of the shelf duct member of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Showcase 3 Heat insulation wall 4 Shelf apparatus 5 Shelf duct member 6 Rear panel 9 Rear duct 11 Display room 16 Upper cold air discharge port 21 Bracket 22 Shelf plate 26 Shelf duct 27 Shelf air discharge port 28 Cold air inlet 36 Rear panel member 41 Communication Portion 45, 47, 50, 52, 55A, 55B Blocking plate 45A Long hole 46, 48, 51, 56, 57 Pivot member 47A, 55C, 55D Screw hole

Claims (4)

In a showcase comprising a display room in a heat insulating wall and a plurality of upper and lower shelves for displaying products in the display room.
A back panel for configuring a back duct that is located on the back of the display chamber and in which cool air rises between the heat insulating wall;
A shelf duct member, which is detachably attached to the shelf, has a rear end communicating with the rear duct at a communication portion of the rear panel, and a cold duct outlet at the front end.
A showcase in which a closing plate for closing the communicating portion at a portion other than a portion corresponding to the shelf duct member is provided at a rear portion of the shelf duct member.   The showcase according to claim 1, wherein the closing plate extends upward and downward from a rear portion of the shelf duct member.   The showcase according to claim 1 or 2, wherein the closing plate can be changed in dimension extending from a rear portion of the shelf duct member.   The showcase according to claim 1, wherein the closing plate is pivotally supported at the rear part of the shelf duct member.

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