JP5919514B2 - Showcase - Google Patents

Description

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

  Traditionally, showcases installed in supermarkets and convenience stores, etc., have a rear duct with the back panel that is spaced inside the heat insulation wall, and a display room inside the back panel. In addition, a cooler and a blower are installed in the rear duct, and the cool air exchanged with the cooler is blown out from the rear duct into the display chamber by the blower.

  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 rear duct. Then, cold air was blown out from the cold air discharge port at the upper edge of the opening to cool the display room while forming an air curtain, and the blown out cold air was sucked from the cold air outlet at the lower edge of the opening.

  Further, a plurality of shelves are installed in the display room. A shelf duct is formed inside the shelf, and a communication portion is formed at the rear end for communicating with the rear duct at the back of the heat insulating wall. 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 display chamber below the shelf. (For example, refer to Patent Document 1).

  Here, when the display room is used as two different temperature zones, for example, normal temperature and cooling temperature, or heating and cooling temperature when a heater is provided on the top surface of the shelf, the display chamber is located above the shelf having the shelf duct. The display room is used at room temperature or warming, and the display room below the shelf having the shelf duct is used as cold temperature. At this time, the cool air rising in the rear duct leaks out from the cool air discharge port formed at the upper edge of the opening of the display chamber and the cool air outlet formed in the rear panel above the shelf having the shelf duct. In order to prevent this, the damper member is advanced into the rear duct to partition the rear duct vertically.

  FIG. 20 shows one panel member in the case where the back panel is configured by combining a plurality of panel members while overlapping a part of them as an example of the prior art. Since the panel member 100 is formed at a position where the height of the communication portion 101 for drawing cool air into the shelf duct is lower than the upper end of the cooler vertically provided in the rear duct, On the upper side, cold air outlets 102 and 103 for blowing out cold air from the back of the display chamber are formed on the left and right sides. And the upper end of this panel member 100 is located higher than the upper end of a cooler, and is made into the baffle plate 104 which is bent at the substantially right angle to the back duct side, and divides this back duct up and down. A plurality of rectifying holes for rectifying the cool air rising in the rear duct are formed in the rectifying plate 104 from side to side.

  In this case, when the display room is used as a two-temperature zone, the upper surface 106A of the closing plate 106 bent in a substantially L-shaped cross section is inserted along the upper surface of the rectifying plate 104 and rectified at the front surface 106A. Each of the rectifying holes of the plate 104 is closed, and the cold air blowing hole 103 located above the communication portion 101 is closed by a front surface 106B extending downward from the front end 106A of the closing plate 106 (state of FIG. 21). . Thereby, the cold air inflow above the rectifying plate 104 in the rear duct and the cold air outflow from the cold air blowing hole 103 above the communicating portion with the shelf duct are prevented.

No. 2004-261502

  However, in the conventional configuration as described above, since the closing plate 106 is a relatively large component, there is a problem in that handling is poor and the mounting operation is complicated. Further, when the entire display room is used as a cold temperature, it is used with the closing plate 106 removed. Since the blocking plate 106 cannot be held in a state of being attached to the back panel when not in use, it needs to be stored separately. Since the blocking plate 106 is a comparatively large part, it is not easy to manage separately, and there is a problem of incurring loss or the like.

  The present invention has been made to solve the conventional technical problems, and provides a showcase that facilitates opening and closing of a current plate located in a rear duct.

In order to solve the above-mentioned problems, a showcase of the present invention comprises a display room having a front surface opened in a heat insulating wall, and a showcase in which a shelf for product display is erected in the display room. The rear panel is located on the back and forms a rear duct where the cool air rises between the heat insulation wall and the shelf. The rear panel is connected to the rear duct at the rear end communication section, and at the front end is a cold air outlet. Is provided on the rear panel, and is provided in the rear duct on the upper side of the communication part and formed with a plurality of through holes, and is provided on the rear duct side of the rear panel so as to be movable up and down. A switching plate for closing the through hole of the rectifying plate so as to be openable and closable , and a guide portion for guiding the vertical movement of the switching plate located on the left and right. The guide portion is formed on the switching plate. A pair of elongated holes and positions in each elongated hole, respectively. And a holding member that holds the switching plate so that the switching plate can be moved up and down between the mounting portion and the back panel. It is characterized by having a vertical dimension that allows vertical movement, and an intermediate portion in the vertical direction being widened while being curved .

The invention of claim 2 is the upper Symbol onset bright, moved up and down the switching plate, and includes an operation portion for holding the raised state, the operating portion is formed on the rear panel, extending in the vertical direction A rear panel crank hole formed of a rear panel vertical hole and a rear panel horizontal hole extending in a horizontal direction from an upper end of the rear panel vertical hole; and a switching plate extending in a horizontal direction formed in the switching plate. It consists of a horizontal hole, a decorative screw inserted from the display chamber side into the rear panel crank hole and the switching plate horizontal hole, and a nut plate that is positioned on the opposite side of the rear panel of the switching plate and to which the decorative screw is screwed. With the decorative screw and nut plate loosened, the decorative screw can be moved up and down in the rear panel vertical hole. When the decorative screw is positioned at the upper end of the rear panel vertical hole, the rear panel horizontal hole and the switching plate horizontal The holes match and the decorative screw can move horizontally Characterized in that it comprises.

The invention of claim 3 includes a plurality of cold air outlets formed in the back panel in each of the above inventions, and the switching plate opens the cold air outlet in a state where the through holes of the rectifying plate are opened, The cold air outlet is closed when the flow hole of the current plate is closed.

According to a fourth aspect of the present invention, in each of the above inventions, the rear panel is provided with a communication hole corresponding to the communication part of the shelf duct, and the switching plate opens the communication hole with the through hole of the rectifying plate closed. The communication hole is closed when the through hole of the current plate is opened.

  According to the present invention, in a showcase in which a display room having a front surface opened in a heat insulation wall and a shelf for product display is erected in the display room, the display room is located on the back surface of the display room, A rear panel for configuring a rear duct in which cool air rises between, a shelf duct that is provided on the shelf, communicates with the rear duct at the rear end communication portion, and has a cool air discharge port formed at the front end, and the rear surface A rectifying plate that is provided in the panel and is located in the rear duct above the communication part and has a plurality of through holes, and is provided to be movable up and down on the rear duct side of the rear panel, opening and closing the through holes in the rectifying plate Since the switching plate for freely closing is provided, the through hole of the rectifying plate can be easily opened and closed by moving the switching plate up and down to the back panel. In particular, by making it possible to move the switching plate up and down with a decorative screw from the display panel side of the rear panel, it is possible to improve the operability of the switching plate, and to open and close the through holes of the rectifying plate. It can be simplified.

  Further, since the switching plate is provided on the rear duct side of the rear panel, it can be configured not to be seen from the display room side, and the appearance can be improved.

Further, according to the present invention, it is provided with a guide portion for guiding the vertical movement of the switching plate located on the left and right, and the guide portion is provided with a pair of elongated holes formed in the switching plate, and in each elongated hole. It has a pair of mounting portions that are respectively positioned and attached to the back panel, and is composed of a holding portion that spans between the mounting portions and a holding member that holds the switching plate so that it can be moved up and down. It has a vertical dimension that allows the switching plate to move up and down, and the middle part in the vertical direction is curved and widened, so when the switching plate is moved up and down, the height position is shifted at both the left and right ends. However, the deviation can be buffered in the elongated hole that is widened while the middle portion in the vertical direction is curved, and it is possible to effectively prevent the problem of being caught and so-called galling.

According to the invention of claim 2, in the above Symbol onset bright, the switching plate is moved vertically, and includes an operation portion for holding the raised state, the operating portion is formed on the rear panel, vertical A rear panel vertical hole formed in the switching plate, and a rear panel crank hole including a rear panel vertical hole extending in a horizontal direction and a rear panel horizontal hole extending in a horizontal direction from an upper end of the rear panel vertical hole. From the switching plate horizontal hole, the decorative screw inserted from the display room side into the back panel crank hole and the switching plate horizontal hole, and the nut plate that is positioned on the opposite side of the switching plate from the rear panel and is screwed with the decorative screw The decorative screw can move up and down in the back panel vertical hole with the decorative screw and nut plate loosened, and it switches to the back panel horizontal hole in the state positioned at the upper end of this back panel vertical hole. The side holes of the plate are aligned and the decorative screw is moved horizontally. By made possible, before tightening the decorative screws, it is possible to hold the decorative thread at the height position of the rear panel transverse bore, it can be facilitated clamping workability. Moreover, even if the fastening with the decorative screw is loosened, the decorative screw is held at the height position of the rear panel horizontal hole, and the switching plate is inadvertently dropped, and the current plate The inconvenience of opening the through hole can be suppressed.

According to the invention of claim 3 , in addition to each of the above-mentioned inventions, a plurality of cold air outlets formed in the back panel are provided, and the switching plate opens the cold air outlet with the through holes of the rectifying plate opened. Open and close the air vent of the current plate, and close the cold air outlet, so that the shelf duct and the rear duct are in communication with each other at the communicating portion. It is possible to prevent cold air from flowing into the display room from the cold air outlet. As a result, it is possible to suppress the inconvenience that the display chamber in the region below the shelf duct becomes too cold.

According to the invention of claim 4 , in addition to the above inventions, the rear panel is provided with a communication hole corresponding to the communication part of the shelf duct, and the switching plate is in a state where the through hole of the rectifying plate is closed, In the state where the communication hole is opened and the flow passage of the flow straightening plate is opened, the communication part is closed so that the shelf duct and the rear duct are not communicated with each other. By closing, it is possible to prevent cold air leakage from the shelf duct. Thereby, the cold air supply to the upper part of the display room can be made sufficient, and the cooling efficiency of the entire display room can be improved.

It is a perspective view of a showcase to which the present invention is applied (a state in which a shelf duct member is attached to the uppermost shelf). It is a front view of a showcase to which the present invention is applied (a state in which a shelf duct member is attached to the second shelf from the top). It is a vertical side view of the showcase of FIG. It is a see-through | perspective front view of a middle panel member (state which opened the through-hole of the baffle plate). FIG. 5 is a perspective view of FIG. 4. FIG. 5 is a side view of FIG. 4. It is a see-through | perspective front view (state which closed the through-hole of the baffle plate) of an intermediate | middle panel member. FIG. 8 is a perspective view of FIG. 7. FIG. 8 is a side view of FIG. 7. It is a see-through | perspective front view of the state which the horizontal position of the switching board shifted | deviated with respect to the intermediate | middle panel member. FIG. 11 is a perspective view of FIG. 10. It is a side view of FIG. It is a see-through | perspective front view of a middle panel member (state which opened the through-hole of the baffle plate). FIG. 14 is a side view of FIG. 13. It is a see-through | perspective front view (state which closed the through-hole of the baffle plate) of an intermediate | middle panel member. FIG. 16 is a side view of FIG. 15. It is a see-through | perspective front view of the intermediate | middle panel member in which the conventional long hole was formed. FIG. 18 is a perspective view of FIG. 17. It is a side view of FIG. It is a disassembled perspective view of the conventional back panel. It is a perspective view which shows the state which attached the obstruction board of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of a showcase 1 to which the present invention is applied, FIG. 2 is a front view of the showcase 1, and FIG. 3 is a longitudinal side view of the showcase 1 of FIG. FIG. 1 shows a state in which the shelf duct member 50 is attached to the uppermost shelf 25, and FIGS. 2 and 3 each show a state in which the shelf duct member 50 is attached to the shelf 26 in the second step surface from above. .

  The showcase 1 has a main body 5 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. It is configured. A back panel 6 is disposed on the back surface of the display chamber 11 with a space from the heat insulating wall 3, and a back duct 9 is formed between the back panel 6 and the heat insulating wall 3 in which cool air rises. Further, a deck pan 10 located on the bottom surface of the display chamber 11 is provided at the lower end of the rear panel 6 so as to extend forward, and a lower duct 14 communicating with the rear duct 9 is formed between the deck pan 10 and the heat insulating wall 3. ing. Further, a top panel 7 located on the top surface of the display chamber 11 is provided at the upper end of the display panel 11 so as to extend forward, and communicates with the back duct 9 between the top panel 7 and the heat insulating wall 3. A duct 15 is formed. Details of the rear panel 6 will be described later.

  A cold air inlet 17 composed of a plurality of slits is formed on the upper surface of the front portion of the deck pan 10 at the lower edge of the front opening of the display chamber 11. The cold air inlet 17 communicates with the lower duct 14. ing. An upper cold air discharge port 16 is formed on the front lower surface of the top panel 7 at the upper edge of the front opening of the display chamber 11. The upper cold air discharge port 16 communicates with the upper duct 15 and is attached with a honeycomb 18 as a rectifying member.

  A cooler circulation fan 8 is disposed in the lower duct 14, and a cooler 12 constituting a refrigeration cycle of the cooling device is vertically disposed in the rear duct 9.

  A machine room 19 is formed below the heat insulating wall 3, and a compressor, a condenser 13, and a condenser blower that constitute a refrigeration cycle of the cooling device together with the cooler 12 are installed in the machine room 19. In addition, an electrical box containing a power supply and a control board is also provided. A back plate 20 made of steel plate is attached to the back of the heat insulating wall 3 with a predetermined distance from the back surface of the heat insulating wall 3, and an exhaust duct 21 is provided between the back plate 20 and the heat insulating wall 3. It is configured.

  The lower end of the exhaust duct 21 opens and communicates with the rear portion of the machine room 19, and the upper end is open above the showcase 1. Reference numeral 23 denotes a panel for closing the front of the machine room 19 so as to be freely opened and closed. Reference numeral 24 denotes an evaporating dish provided in the lower part of the machine room 19, and drain water (dew water, defrost water, etc.) from the cooler 12 flows in through a drain hose (not shown) and is stored.

  On the other hand, in the display chamber 11, a plurality of shelves for displaying merchandise are arranged in three stages, and in this embodiment, 25, 26, and 27 are installed in order from the top. Here, since the shelves 25, 26, and 27 have substantially the same configuration, the shelf 26 that is attached to the second stage from the top of FIGS. The duct member 50 will be described.

  The shelf 26 is detachably installed in the display chamber 11 by a pair of brackets 30 and 30. An engagement claw is formed at the rear end of each bracket 30, and the engagement claw is attached to the left and right in the display chamber 11, that is, the left and right of the back panel 6. By detachably engaging with 32, it is attached at a predetermined height position.

  The shelf 26 can be pulled out forward with respect to the bracket 30 by the brackets 30, 30 and the slide rail 31 attached to the shelf 26. As a result, the shelf 26 can be held in a state where it is pushed into the display chamber 11 and held and pulled out from the front opening when the product is replenished.

  A heating heater (electric heater) for heating the product placement surface is attached to the back side of the product placement surface of the shelf 26. At the time of heating use, the heating heater generates heat and heats and keeps the products on the shelf 26.

  A shelf duct member 50 is detachably provided on the inner side of the brackets 30 and 30 below the shelf 26. 1, it is attached to the lower side of the uppermost shelf 25, and in FIGS. 2 and 3, it is attached to the lower side of the second shelf 26 from the top. The shelf duct member 50 has a shelf duct 53 formed therein, and the front end extends to the front of the front end of the shelf 26, and the rear end extends to the rear of the rear end of the shelf 26. doing. The rear surface (rear end) of the shelf duct member 50 is formed with a communication portion 51 that opens backward, and the intermediate cold air discharge port 52 that extends in the left-right direction and opens downward is formed at the front end of the lower surface. .

  Here, the communication portion 51 formed at the rear end of the shelf duct member 50 is provided in contact with the front surface of the rear panel 6 provided on the back side of the shelf 26 located below the shelf 26. In accordance with the inclination angle, the upper end extends rearward from the lower end. On the other hand, in the rear panel 6, the interior of the rear duct 9 and the shelf duct 53 are communicated with a position corresponding to the communication portion 51 of the shelf duct member 50 attached to the shelf 26 (details will be described later). A plurality of communication holes 54 are formed on the left and right. In addition, the said communication hole 54 shall be formed in the position where the shelf duct member 50 attached to each shelf 25 and 27 respond | corresponds.

  Further, a damper operation portion 55 is provided at the rear end of the shelf duct member 50 so as to protrude toward the rear duct 9 side. The damper operating section 55 is for operating a damper member (not shown) provided on the back panel 6 in a closing direction when the shelf duct member 50 is attached to the uppermost shelf 25.

  Next, the configuration of the back panel 6 in the present embodiment will be described in detail. The rear panel 6 in the present embodiment is configured by combining a plurality of panel members with the upper and lower ends partially overlapping. Here, the rear panel 6 includes an upper panel member 35 corresponding to the rear surface on the uppermost shelf 25, an uppermost panel member 36 corresponding to the rear of the uppermost shelf 25, and a second shelf from the top. 26, an intermediate panel member 37 corresponding to the back of the shelf 26, the rear of the shelf, and the back of the lowermost shelf 27, and a lower panel member 38 corresponding to the rear of the lowermost shelf.

  By changing the overlapping amount in the vertical direction of each of the panel members 35 to 38, the mounting height of each shelf 25, 26, 27 can be arbitrarily changed. The back panel 6 is composed of a plurality of panel members in this embodiment, but may be composed of a single panel.

  The uppermost panel member 36 is positioned behind the uppermost shelf 25 and extends above and below a predetermined dimension of the shelf 25. In the uppermost panel member 36, an operation portion insertion port (not shown) is formed corresponding to the height position of the shelf duct member 50 attached to the uppermost shelf 25. A damper member that is rotatable by advancing and retreating the damper operation portion 55 provided in the shelf duct member 50 is provided on the surface on the rear duct 9 side at a position corresponding to the operation portion insertion port. The damper member closes the rear duct 9 at the height position by the advancement of the damper operation unit 55 to the rear duct 9 side, and when the damper member is retracted from the rear duct 9 side, the rear duct 9 is opened by its own weight. .

  Next, the configuration of the intermediate panel member 37 will be described with reference to FIGS. 4 is a perspective front view of the intermediate panel member 37 (a state in which the through holes 41 of the current plate 40 are opened), FIG. 5 is a perspective view of FIG. 4, FIG. 6 is a side view of FIG. 37 is a transparent front view (a state in which the through hole 41 of the rectifying plate 40 is closed), FIG. 8 is a transparent perspective view of FIG. 7, and FIG. 9 is a side view of FIG.

  The intermediate panel member 37 is configured such that at least the upper end extends higher than the upper end of the cooler 12 vertically provided in the rear duct 9, and the upper end of the intermediate panel member 37 extends to the left and right of the rear duct 9. The rectifying plate 40 is formed so as to be bent at a substantially right angle toward the back duct 9 and to be located in the back duct 9. A plurality of through holes 41 are formed in the current plate 40 across the left and right. In the figure, 40A is a flange bent from the rear end of the current plate 40, and is fixed to the surface of the heat insulating wall 3 on the rear duct 9 side by screws.

  As described above, the intermediate panel member 37 has a communication hole 54 for communicating the inside of the rear duct 9 and the shelf duct 53 at a position corresponding to the communication portion 51 of the shelf duct member 50 attached to the shelf 26. A plurality are formed on the left and right. A plurality of cold air outlets 42 are formed above the communication hole 54 so as to communicate with the rear duct 9 and the display chamber 11 side in correspondence with the rear surface on the shelf 26. ing. Further, below the communication hole 54, a cold air outlet 43 for communicating the inside of the back duct 9 and the display chamber 11 side in correspondence with the back of the shelf 27 below the shelf 26 extends to the left and right. Are formed.

  A switching plate 45 for closing the through hole 41 of the rectifying plate 40 so as to be openable and closable is provided on the rear duct 9 side of the intermediate panel member 37 so as to be movable up and down. The switching plate 45 is made of a plate material having a substantially L-shaped cross section, and the upper surface 45A abuts against the rectifying plate 40 of the intermediate panel member 37, whereby the through hole 41 is closed by the upper surface 45A, and the upper surface 45A is By separating from the rectifying plate 40, the through hole 41 is opened.

  In the present embodiment, the intermediate panel member 37 to which the switching plate 45 is attached is formed with a back panel vertical hole 46 extending in the vertical direction, and the makeup for inserting the back panel vertical hole 46 from the display chamber 11 side. Screws 47 are provided on the switching plate 45. By loosening the decorative screw 47, the switching plate 45 can be moved up and down in the rear panel vertical hole 46 of the intermediate panel member 37. By tightening the decorative screw 47, the switching plate 45 is moved to the intermediate panel at the position. It can be fixed (held) to the member 37. In the present embodiment, the back panel vertical hole 46 and the decorative screw 47 are provided at two places (a plurality) at a predetermined interval.

  The intermediate panel member 37 is provided with a guide portion 58 that is positioned on the left and right to guide the vertical movement of the switching plate 45. The guide portion 58 includes a pair of long holes 59 and 59 formed in the switching plate 45 and a holding member 60.

  The long holes 59, 59 in this embodiment have a vertical dimension that allows the switching plate 45 to move up and down, and have a substantially barrel shape in which an intermediate portion in the vertical direction is curved and widened. The holding member 60 includes a pair of mounting portions 60A and 60A and a holding portion 60B extending between the mounting portions 60A and 60A. The holding portion 60B is located on the back duct 9 side, and the mounting portions 60A and 60A are The mounting portions 60A and 60A are attached to the intermediate panel member 37 by fixing members 61 and 61 such as screws from the display chamber 11 side while being positioned in the respective long holes 59 and 59 formed in the switching plate 45. It has been.

  As a result, the switching plate 45 is held so as to be movable up and down within the range in which the long hole 59 is formed between the front surface of the holding portion 60B across the mounting portions 60A and 60A and the rear surface of the intermediate panel member 37.

  The lower end of the switching plate 45 is moved upward with respect to the intermediate panel member 37, that is, with the upper surface 45 </ b> A closing the through hole 41 of the rectifying plate 40, the shelf duct 53, the rear duct 9, The communication hole 54 is located above the communication hole 54 that communicates with the intermediate panel member 37, and is moved downward with respect to the intermediate panel member 37, that is, the upper surface 45A opens the through hole 41 of the rectifying plate 40. In this state, the communication hole 54 is closed.

  Further, the surface of the switching plate 45 that comes into contact with the intermediate panel member 37 is in a state where it moves downward with respect to the intermediate panel member 37, that is, in a state where the upper surface 45 </ b> A opens the through hole 41 of the rectifying plate 40. 26, a switching plate side cold air outlet 63 that overlaps with the cold air outlet 42 for communicating the inside of the rear duct 9 and the display chamber 11 side in correspondence with the rear surface on the opening 26 and opens the cold air outlet 42 is formed. Yes.

  When the switching plate-side cold air outlet 63 is moved upward with respect to the intermediate panel member 37, that is, when the upper surface 45 </ b> A closes the through hole 41 of the rectifying plate 40, the cold air formed in the intermediate panel member 37. It is closed by shifting its position from the air outlet 42. In the present embodiment, the switching plate side cold air outlet 63 is formed to be slightly larger than the cold air outlet 42 on the intermediate panel member 37 side.

  In addition, although the case where the said back panel 6 consists of a some panel member is demonstrated, it is not limited to this, When comprised by one panel, the baffle plate 40 is the shelf 26. The switching plate 45 is located below the rectifying plate 40 and is located on the rear duct 9 side of the rear panel 6. It shall be provided to be movable up and down.

  With the above configuration, when the display room 11 above the shelf 25 constituting the uppermost stage is used as a heating area and the display room 11 below the shelf 25 is used as a cooling area for refrigeration, FIG. As shown, the shelf duct member 50 is attached to the underside of the shelf 25. As a result, the damper operation portion 55 of the shelf duct member 50 rotates the damper member (not shown) attached to the uppermost panel member 36 (rear panel 6) toward the rear duct 9 so that the rear duct 9 has a higher height. It is blocked by this.

  In this case, the switching plate 45 attached to the intermediate panel member 37 moves the decorative screw 47 to the lower side in the back panel vertical hole 46 as shown in FIGS. 4 to 6, that is, the switching plate. 45 is moved downward with respect to the intermediate panel member 37 so that the upper surface 45A opens the through hole 41 of the rectifying plate 40. At this time, the communication hole 54 formed in the intermediate panel member 37 is closed by the switching plate 45. Further, the cold air outlet 42 formed in the intermediate panel member 37 and the switching plate side cold air outlet 63 formed in the switching plate 45 are superposed, and the cold air outlet 42 is opened.

  In this state, when the cool air circulation blower 8 is operated, a part of the cool air heat exchanged with the cooler 12 rises in the rear duct 9, and the rectifying plate 40 formed on the upper end of the intermediate panel member 37. After being rectified in the process of passing through the through hole 41, it flows into the shelf duct 53 through the communication portion 51 of the shelf duct member 50 attached to the shelf 25 through the communication hole 54 formed in the uppermost panel member 36. Then, the air is discharged from the intermediate cold air discharge port 52 toward the lower part in the display chamber 11. The remaining cool air is discharged into the display chamber 11 from the back of the display chamber 11 through the cool air outlets 42 and 43 formed in the back panel 6 (intermediate panel member 37).

  The cool air discharged from the intermediate cool air discharge port 52 formed on the lower surface of the front end of the shelf duct member 50 cools the inside of the display chamber 11 while forming a cool air curtain in the front opening of the display chamber 11 below the shelf 25. To do. Then, the circulation that is sucked into the lower duct 14 from the cold air suction port 17 and sucked into the blower 8 again is repeated.

  Therefore, the inside of the display chamber 11 below the uppermost shelf 25 is cooled and supplied to the front opening through the shelf duct member 50 attached to the lower side of the shelf 25 to be used as a cooling region. be able to. On the other hand, by energizing the electric heater of the uppermost shelf 25, the inside of the display chamber 11 above the uppermost shelf 25 is made a heating region by stopping the supply of cold air and energizing the electric heater, and is used for warm storage. Will be able to.

  On the other hand, in the case where the display room 11 above the second shelf 26 from the top is used as a heating area and the display room 11 below the shelf 26 is used as a cooling area for refrigeration, FIGS. The shelf duct member 50 is attached to the lower side of the shelf 26 as shown in FIG. At this time, the damper operation portion 55 of the shelf duct member 50 advances to the rear duct 9 side via the operation portion insertion port 56 formed in the intermediate panel member 37, and the shelf duct member 50 is attached without any trouble. Can do.

  In this case, the switching plate 45 attached to the intermediate panel member 37 moves the decorative screw 47 to the upper side in the back panel vertical hole 46 as shown in FIGS. The panel member 37 is moved upward so that the upper surface 45 </ b> A closes the through hole 41 of the rectifying plate 40. At this time, the communication plate 54 formed in the intermediate panel member 37 is opened by the switching plate 45. Further, the cold air outlet 42 formed in the intermediate panel member 37 and the switching plate side cold air outlet 63 formed in the switching plate 45 are shifted from each other, and the cold air outlet 42 is closed.

  In this state, when the cool air circulation blower 8 is operated, the cool air that has exchanged heat with the cooler 12 rises in the rear duct 9, and the through holes 41 of the rectifying plate 40 formed at the upper end of the intermediate panel member 37. Is closed by the upper surface 45A of the switching plate 45, and the communication hole 54 formed in the intermediate panel member 37 is open, so that the shelf duct member 50 attached to the shelf 26 via the communication hole 54 is opened. The air flows into the shelf duct 53 from the communication portion 51 and is discharged from the intermediate cold air discharge port 52 toward the lower portion in the display chamber 11.

  The cool air discharged from the intermediate cool air discharge port 52 formed on the lower surface of the front end of the shelf duct member 50 cools the inside of the display chamber 11 while forming a cool air curtain in the front opening of the display chamber 11 below the shelf 26. To do. Then, the circulation that is sucked into the lower duct 14 from the cold air suction port 17 and sucked into the blower 8 again is repeated.

  Accordingly, the inside of the display chamber 11 below the second shelf 26 from the top is set as a cooling region by being supplied with cold air to the front opening through the shelf duct member 50 attached to the lower side of the shelf 26. Can be used refrigerated. At this time, the cold air outlet 42 located at the back of the display chamber 11 on the shelf 26 from which the cold air is discharged from the intermediate cold air outlet 52 of the shelf duct member 50 is closed by the switching plate 45. The cold air can be prevented from flowing into the display chamber 11 from the cold air outlet 42. Thereby, the inconvenience that the inside of the display room 11 of the area | region below the shelf duct 53 gets too cold can be suppressed.

  On the other hand, by energizing the electric heaters of the uppermost shelf 25 and the second-tier shelf 26 from above, the inside of the display chamber 11 above the second-tier shelf 26 from the upper side stops the cooling air supply and the electric heater. It becomes a heating region by energization, and can be used in a refrigerated state.

  When the shelf duct member 50 is attached to the second shelf 26 from the top and the entire display chamber 11 is refrigerated and used as a cold area, the switching plate 45 attached to the intermediate panel member 37 is 4 to 6, the decorative screw 47 is moved downward in the back panel vertical hole 46, that is, the switching plate 45 is moved downward with respect to the intermediate panel member 37, and the upper surface 45A is moved. Is in a state where the through hole 41 of the rectifying plate 40 is opened. At this time, the communication hole 54 formed in the intermediate panel member 37 is closed by the switching plate 45. Further, the cold air outlet 42 formed in the intermediate panel member 37 and the switching plate side cold air outlet 63 formed in the switching plate 45 are in a superposed position, and the cold air outlet 42 is opened.

  In this state, when the cool air circulation blower 8 is operated, the cool air that has exchanged heat with the cooler 12 rises in the rear duct 9, and the through holes 41 of the rectifying plate 40 formed at the upper end of the intermediate panel member 37. Then, the air flows into the upper duct 15 and is discharged from the upper cold air discharge port 16 formed at the upper edge of the front opening of the display chamber 11 toward the lower portion of the display chamber 11.

  The cool air discharged from the upper cool air discharge port 16 cools the inside of the display chamber 11 while forming a cool air curtain in 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 8 again is repeated.

  At this time, since the communication hole 54 corresponding to the communication portion 51 of the shelf duct 53 is closed by the switching plate 45, it is possible to prevent cold air leakage from the shelf duct 53. Thereby, the cold air supply to the upper part in the display chamber 11 can be made sufficient, and the cooling efficiency of the entire display chamber 11 can be improved.

  In this way, by supplying cold air into the display chamber 11 from the upper edge of the front opening of the display chamber 11, the entire area of the display chamber 11 can be refrigerated.

  As described above, in this embodiment, the switching plate 45 is moved up and down with respect to the intermediate panel member 37 (back panel 6), thereby easily opening and closing the through hole 41 of the rectifying plate 40 provided in the back duct 9. can do. In particular, by allowing the decorative plate 47 to move the switching plate 45 up and down from the inside of the display chamber 11 of the intermediate panel member 37, the operability of the switching plate 45 can be improved, and the rectifying plate 40 can be improved. The opening / closing operation of the through-hole 41 can be simplified.

  Further, since the switching plate 45 is provided on the rear duct 9 side of the intermediate panel member 37, the switching plate 45 can be made invisible from the display chamber 11 side, and the appearance can be improved.

  When the switching plate 45 is moved up and down relative to the intermediate panel member 37, the switching plate 45 is located in the pair of long holes 59, 59 formed in the switching plate 45 and in each long hole 59. A holding member 60 having a pair of attachment portions 60A and 60A attached to 37, and holding the switching plate 45 so as to be movable up and down by the holding portion 60B and the intermediate panel member 37 extending between the attachment portions 60A and 60A. Therefore, the switching plate 45 can be moved within a range in which the mounting portion 60A moves in the long hole 59, and smooth vertical movement can be realized.

  At this time, in this embodiment, the long hole 59 through which the mounting portion 60A moves is different from the case where it is formed in the same width dimension in the vertical direction, as shown in FIGS. However, when the switching plate 45 is moved up and down, even if the height position is shifted at both the left and right ends, as shown in FIGS. It is possible to buffer the minute portion in the elongated hole 59 widened while the middle portion in the vertical direction is curved, and it is possible to effectively prevent the inconvenience of being caught and so-called galling.

  Since the left and right dimensions of the switching plate 45 provided on the intermediate panel member 37 are configured according to the dimensions of the back panel 6 (intermediate panel member 37), they are relatively large. For this reason, even if the guide portions 58 for guiding the vertical movement of the switching plate 45 are provided on the left and right side portions of the intermediate panel member 37, the height positions of the both side portions are maintained while maintaining substantially the same state. It will be difficult to do. At this time, as shown in FIG. 17 to FIG. 19, when the long hole 59 is formed to have substantially the same width dimension in the upper and lower sides, the shift of the height position on the both side portions cannot be buffered and is caught. It becomes a state. However, in this embodiment, as shown in FIGS. 10 to 12, the elongated hole 59 has a substantially barrel shape that is widened while the middle portion in the vertical direction is curved, so that the height position is increased on both sides. Even if the shift occurs, the shift can be buffered with a substantial barrel shape with a margin, and the up and down movement workability can be improved.

  The configuration for moving the switching plate 45 up and down is not limited to this. Another embodiment will be described with reference to FIGS. 13 is a transparent front view of the intermediate panel member 37 (a state where the through holes 41 of the rectifying plate 40 are opened), FIG. 14 is a side view of FIG. 13, and FIG. 15 is a transparent front view of the intermediate panel member 37 (of the rectifying plate 40). FIG. 16 shows a side view of FIG. 15.

  In this case, the operation unit 65 that moves the switching plate 45 up and down and maintains the raised state is formed in the rear panel crank hole 66 formed in the intermediate panel member 37 (back panel 6) and the switching plate. A switching plate horizontal hole 69 extending in the horizontal direction, a decorative screw 70 inserted from the display chamber 11 side into the rear panel crank hole 66 and the switching plate horizontal hole 69, and an intermediate panel member 37 (the rear panel 6) of the switching plate 45 ) And a nut plate 71 on which the decorative screw 70 is screwed.

  The back panel crank hole 66 includes a back panel vertical hole 67 extending in the vertical direction and a back panel horizontal hole 68 extending in the horizontal direction from the upper end of the back panel vertical hole 67. The back panel horizontal hole 68 and the switching plate horizontal hole 69 formed in the switching plate 45 are formed at positions and sizes that are substantially overlapped. Further, it is desirable that the nut plate 71 is movable only in the direction of the switching plate horizontal hole 69 of the switching plate 45 and is formed to have a size that at least closes the switching plate horizontal hole 69.

  With the above configuration, the direction in which the through hole 41 is closed from the state in which the switching plate 45 is lowered with respect to the intermediate panel member 37 (back panel 6), the state in which the through hole 41 of the rectifying plate 40 in FIGS. First, the screw of the decorative screw 70 and the nut plate 71 is loosened, and the decorative screw 70 is moved upward in the back panel vertical hole 67. With the decorative screw 70 positioned at the upper end of the back panel vertical hole 67, the back panel horizontal hole 68 and the switching plate horizontal hole 69 are brought into agreement (FIGS. 15 and 16). In this state, the decorative screw 70 is moved in the horizontal direction in the matched back panel horizontal hole 68 and switching plate horizontal hole 69. At this time, the decorative screw 70 can be held at the height position of the rear panel horizontal hole 68, and tightening workability can be facilitated. Thereafter, the screwing of the decorative screw 70 and the nut plate 71 is tightened.

  By adopting such a configuration, even if the fastening with the decorative screw 70 is loosened, the decorative screw 70 is held at the height position of the rear panel horizontal hole 68, and the switching plate is carelessly formed. The inconvenience that 45 falls and the through-hole 41 of the baffle plate 40 opens can be suppressed. Moreover, since the nut plate 71 is formed in a size that closes the switching plate lateral hole 69, the lateral hole can be blocked, and cold air leakage from the hole can be prevented.

  In FIGS. 13 to 16, the elongated hole 59 of the guide portion 58 is formed to have the same width dimension in the upper and lower directions, but the intermediate portion in the vertical direction is widened while being curved as in the above embodiment. It is more desirable to have a substantially barrel shape.

DESCRIPTION OF SYMBOLS 1 Showcase 6 Back panel 8 Blower for cool air circulation 9 Back duct 10 Deck pan 11 Display room 12 Cooler 13 Condenser 14 Lower duct 15 Upper duct 16 Upper cold air discharge port 17 Cold air inlet 19 Machine room 20 Back plate 25, 26, 27 Shelf for product display 30 Bracket 35 Upper panel member 36 Uppermost panel member 37 Intermediate panel member 38 Lower panel member 40 Current plate 41 Through hole 42, 43 Cold air outlet 45 Switching plate 45A Upper surface 46 Rear panel vertical hole 47 Makeup Screw 50 Shelf duct member 51 Communication portion 52 Intermediate cold air outlet 53 Shelf duct 54 Communication hole 55 Damper operation portion 56 Operation portion insertion port 58 Guide portion 59 Long hole 60 Holding member 60A Mounting portion 60B Holding portion 61 Fixing member 63 Switching plate side Cold air outlet 65 Operation section 66 Rear panel crank hole 67 Rear panel vertical hole 68 Rear panel horizontal hole 69 Switching plate horizontal hole 70 Makeup screw 71 Nut plate

Claims (4)

In a showcase comprising a display room having a front opening in a heat insulating wall, and a shelf for displaying products in the display room.
A back panel for configuring a back duct that is located on the back of the display room and in which cool air rises between the heat insulating wall;
A shelf duct provided on the shelf and communicating with the rear duct at a rear end communication portion, and a cold air discharge port formed at the front end,
A rectifying plate provided in the back panel and having a plurality of through holes formed in the back duct above the communication portion;
A switching plate provided on the back duct side of the back panel so as to be movable up and down, and for closing the through hole of the rectifying plate so as to be freely opened and closed ;
A guide section for guiding the vertical movement of the switching plate located on the left and right,
The guide portion has a pair of long holes formed in the switching plate and a pair of mounting portions that are respectively positioned in the long holes and are attached to the back panel, and a holding portion that extends between the mounting portions. And a holding member that holds the switching plate so as to be movable up and down with the back panel,
The showcase, wherein the long hole has a vertical dimension that allows the switching plate to move up and down, and is widened while a middle portion in the vertical direction is curved . An operation unit for moving the switching plate up and down and maintaining the raised state;
The operating portion is formed in the back panel, and includes a back panel vertical hole extending in the vertical direction and a back panel crank hole extending in the horizontal direction from the upper end of the back panel vertical hole. A horizontally extending switching plate hole formed in the switching plate, a decorative screw inserted from the display chamber side into the back panel crank hole and the switching plate lateral hole, and the back surface of the switching plate It consists of a nut plate that is positioned opposite to the panel and into which the decorative screw is screwed,
In a state where the screw of the decorative screw and the nut plate is loosened, the decorative screw can move up and down in the vertical hole of the back panel, and in the state of being positioned at the upper end of the vertical hole of the back panel, 2. The showcase according to claim 1, wherein the switching plate lateral hole is matched, and the decorative screw is movable in a horizontal direction. A plurality of cold air outlets formed in the back panel, the switching plate in a state where the through holes of the rectifying plate are opened, the cold air outlets are opened, and the through holes of the rectifying plate are closed in showcase according to claim 1 or billed to claim 2, characterized in that closing the cold air outlet. The switching plate is formed in the back panel and corresponds to the communication portion of the shelf duct, and the switching plate opens the communication hole in a state where the through hole of the rectifying plate is closed, and transmits the rectifying plate. showcase according to any one of claims 1 to 3 in the open state of the hole, characterized in that closing said communicating hole.

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