JP6090691B2 - Showcase - Google Patents

Description

  The present invention relates to a showcase that can be used as a temperature different from cooling, such as cooling a display room below a shelf installed in a display room and heating a display room above a shelf.

  Traditionally, in showcases where products such as canned beverages and beverages containing plastic bottles are displayed and sold, a shelf for displaying products is installed in the display room with the front open, and an electric heater is attached to the shelf and the bottom of the shelf is attached. A shelf duct was formed. Then, the display room above the shelf can be used for heating (warming temperature zone), and the lower part can be used for cooling (refrigeration temperature zone, etc.). Cool air is introduced into the shelf duct from the cool air duct formed between the heat insulating walls, discharged from the front of the shelf into the display room below, and cooled, and the electric heater is heated to heat the display room above the shelf. The method was adopted.

  In addition, the introduction of cold air into the shelf duct has been performed by opening or closing either the air outlet formed in the partition plate or the cold air duct with a damper slidably attached to the partition plate (for example, a patent) Reference 1).

Japanese Patent Laid-Open No. 2005-156034

  However, the structure of the conventional damper as in Patent Document 1 is complicated. In addition to this, there is a structure in which a damper is rotatably attached to a partition plate using a rotating shaft, but each structure has a problem that the cost increases.

  The present invention has been made to solve the conventional technical problems, and is a show in which cold air is discharged below the shelf of the display room, and the display room can be set to different use temperature zones above and below the shelf. In a case, it aims at simplifying the structure concerning the damper for switching cold air.

  In order to solve the above problems, the showcase of the present invention has a partition plate inside the heat insulating wall, a cool air duct is formed between the partition plate and the heat insulating wall, and a display chamber whose front is opened inside the partition plate is configured respectively. In addition, a shelf for displaying products is installed in the display chamber, and the cool air rising in the cool air duct is guided from the blowout port formed in the partition plate to the front of the shelf and discharged into the display chamber below the shelf. A damper that can be freely opened and closed, and a damper holder that is provided in the cold air duct corresponding to the outlet, and the damper holder includes a cooler for the partition plate. It has a holding part that is opposed to the duct side with an interval, and a support part that is located at the upper rear side of the air outlet, and the damper is a closing part that is located on the cold air duct side, and an operation part that is located on the display room side The closing part is between the partition plate and the holding part of the damper holder. Standing in a state where it is removably dropped, the closing part closes the outlet along the cold air duct side of the partition plate, and the operation part is lifted by the operation part along the display chamber side of the partition plate and closed The part is horizontal when the part is separated from the partition plate and the sandwiching part, the closing part is supported by the support part of the damper holder to close the cold air duct, and the operation part protrudes from the outlet to the display room side to partition the shelf It is located between plates.

  The showcase of the invention of claim 2 is characterized in that, in the above invention, the shelf is provided with an electric heater.

  The showcase of the invention of claim 3 is characterized in that, in each of the above-described inventions, the holding portions of the damper holder are located on both sides of the air outlet and hold both sides of the closing portion of the damper.

  The showcase of the invention of claim 4 is characterized in that, in each of the above inventions, the support portion of the damper holder has means for maintaining the horizontal state of the damper.

  The showcase of the invention of claim 5 is characterized in that, in the above invention, the support portion of the damper holder has a magnet, and the damper is maintained in a horizontal state by a magnetic force.

  The showcase of the invention of claim 6 is characterized in that, in each of the above inventions, the damper holder has a guide part for guiding the movement of the damper from the standing state to the horizontal state.

  The showcase of the invention of claim 7 is characterized in that, in each of the above inventions, the damper holder has a rectifying portion for rectifying the cold air blown out from the air outlet.

  In the showcase of the invention of claim 8, in the above inventions, the operation portion of the damper guides the cold air blown out from the air outlet toward the front part of the shelf in a state of protruding from the air outlet toward the display chamber side. It is characterized by.

  According to the present invention, a partition plate is provided inside the heat insulation wall, a cold air duct is formed between the partition plate and the heat insulation wall, and a display chamber whose front surface is opened inside the partition plate is configured, and a product is provided in the display chamber. In a showcase in which a shelf for display is installed, and the cool air rising in the cool air duct is guided from the outlet formed in the partition plate to the front of the shelf, and can be discharged into the display chamber below the shelf, A damper that closes the air outlet in an openable and closable manner and a damper holder provided in the cold air duct corresponding to the air outlet are provided, and the damper holder has an interval on the cold air duct side of the partition plate. The dampers have a closing part located on the cold air duct side and an operation part located on the display chamber side, and the closing part Is removably dropped between the partition plate and the holding part of the damper holder The closed portion closes the air outlet along the cold air duct side of the partition plate, the operation portion extends along the display chamber side of the partition plate, is lifted by the operation portion, and the closed portion is separated from the partition plate. It becomes horizontal when it is detached from between the clamping parts, the closing part is supported by the support part of the damper holder to close the cold air duct, and the operation part protrudes from the outlet to the display room side and is located between the shelf and the partition plate Since it did in this way, it becomes possible to open and close a blower outlet and a cold air duct with a damper, without using complicated structures, such as rotation using a rotating shaft, and a slide.

  That is, when the upper and lower sides of the shelf are cooled and used, the damper is raised to close the air outlet. For example, when an electric heater is provided on the shelf as in the invention of claim 2 and the display room above the shelf is heated and used, and cooling is performed by discharging cool air below the shelf, the operation unit By lifting the damper, closing the cold air duct in the horizontal state and opening the outlet, it becomes possible to discharge the cold air below the shelf, and it is possible to significantly reduce the production cost by simplifying the structure It becomes like this.

  Moreover, if the clamping part of the damper holder is located on both sides of the outlet and clamps both sides of the closing part of the damper as in the invention of claim 3, the standing state of the damper can be stably maintained. become able to.

  Further, if the support part of the damper holder has means for maintaining the horizontal state of the damper as in the invention of claim 4, the horizontal state of the damper can be stably maintained. In this case, for example, if a magnet is provided in the support portion of the damper holder as in the invention of claim 5 and the horizontal state of the damper is maintained by the magnetic force, the horizontal state of the damper can be maintained with a simple structure, and The operation of standing up from this state is also easy.

  Further, if the damper holder is provided with a guide portion for guiding the movement of the damper from the standing state to the horizontal state as in the invention of claim 6, the damper can be smoothly moved from the standing state to the horizontal state. Will be able to.

  Further, if the damper holder is provided with a rectifying unit that rectifies the cool air blown from the outlet as in the seventh aspect of the invention, an appropriate amount of cool air can be uniformly discharged downward from the shelf. . Further, if the damper operating portion guides the cool air blown from the blowout port toward the front portion of the shelf in a state where the operation portion of the damper protrudes from the blowout port to the display chamber side as in the invention of claim 8, the damper It becomes possible to guide the cold air to the front part of the shelf by the operation portion, and to smoothly draw in the cold air from the cold air duct.

It is a perspective view of the showcase of one Example to which this invention is applied (Example 1). It is a vertical side view of the showcase of FIG. It is an enlarged view of the shelf part of the showcase of FIG. It is a front view of the damper part except the shelf of the showcase of FIG. It is the sectional view on the AA line of FIG. It is a disassembled perspective view of the damper part of the showcase of FIG. It is an upper perspective view of the shelf of the showcase of FIG. It is a lower back perspective view of the shelf of the showcase of FIG. It is a lower front perspective view of the shelf of the showcase of FIG. It is a top view of the shelf of the showcase of FIG. It is a front view of the shelf of the showcase of FIG. It is a bottom view of the shelf of the showcase of FIG. It is an expansion vertical side view of the shelf part of the showcase of FIG. 1 of the state which lifted the damper. It is a front view of the damper part except the shelf of the showcase of FIG. It is the BB sectional drawing of FIG. It is a vertical side view of the showcase of FIG. 1 in a state where the damper is horizontal. It is an enlarged view of the shelf part of the showcase of FIG. It is a front view of the damper part except the shelf of the showcase of FIG. It is CC sectional view taken on the line of FIG. It is a disassembled perspective view of the damper part of the showcase of other Examples (Example 2). It is a front view of the damper part except the shelf of the showcase of FIG. It is the EE sectional view taken on the line of FIG. It is a front view of the shelf of the showcase of other Example (Example 3). It is a bottom view of the shelf of FIG. It is a vertical side view of the shelf of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  The showcase 1 of the embodiment is for displaying and selling products such as canned beverages and beverages in plastic bottles at stores such as supermarkets and convenience stores, and has a U-shaped insulating wall 2 with a front opening. The body is configured. A partition plate 3 is disposed inside the heat insulating wall 2 with a gap, and a deck pan 4 is provided at the lower end of the partition plate 3 with a space from the bottom wall of the heat insulating wall 2. A series of cool air ducts 6 are formed between the partition plate 3, the deck pan 4, and the heat insulating wall 2, and a display chamber 7 having a front surface opened inside the partition plate 3 and the deck pan 4 is formed. 8 and 8 are side plates to which transparent glass is attached, and are attached to both sides of the heat insulating wall 2.

  A cold air discharge port 9 is formed at the upper edge of the front opening of the display chamber 7, and a cold air suction port 11 is formed at the lower edge, and these communicate with the cold air duct 6. A blower 12 is disposed in the cool air duct 6 below the deck pan 4, and a cooler is provided in the cool air duct 6 between the partition plate 3 on the back surface of the display chamber 7 and the heat insulating wall 2 behind it. The cooler 13 constituting the refrigerant circuit is vertically provided. When the blower 12 is operated, the cool air exchanged with the cooler 13 is blown up from the bottom in the cool air duct 6 at the rear of the display chamber 7 and is discharged into the display chamber 7 from the cool air discharge port 9 at the upper edge of the opening. The Then, after the inside of the display chamber 7 is cooled while forming a cold air curtain in the front opening of the display chamber 7, the air is sucked into the blower 12 in the cold air duct 6 from the cold air inlet 11.

  On the other hand, a machine room 14 is formed below the heat insulating wall 2, and a compressor, a condenser, a condenser blower, and the like (not shown) constituting a refrigerant circuit of the cooling device are installed in the machine room 14. A fluorescent lamp 16 is attached to the front end of the heat insulating wall 2 at the upper edge of the opening of the display chamber 7.

  Further, a plurality of stages (three stages in the embodiment) of product display shelves 17 are installed in the display room 7, and each shelf 17 can be pulled out in the front-rear direction. In this case, vertical support columns 18 are attached to the left and right sides of the back of the display chamber 7, and a plurality of engagement holes 19 are formed in each vertical column 18 at predetermined intervals (FIG. 1).

  Then, a pair of left and right brackets 21 are attached to each column 18. As shown in FIGS. 7 to 9, an engagement claw 22 is formed at the rear end of each bracket 21, and the bracket 21 is detachably engaged with the engagement hole 19. , It is detachably attached to the support column 18. In addition, braces 23 are attached to the left and right brackets 21. This brace 23 connects them across the left and right brackets 21. Further, the braces 23 that connect the brackets 21 that hold the uppermost shelf and the central shelf 17 are formed of rectangular flat plates as shown in FIGS. 3, 8, 9, and 12.

  Further, a slide rail 24 extending in the front-rear direction is attached to the outer surface of the bracket 21, and a side plate 26 descending from the left and right ends of the shelf 17 is attached to the slide rail 24, so that the shelf 17 has the bracket 21 and the brace 23. It is located on the upper side and is held so as to be able to be drawn back and forth. Reference numeral 27 denotes a stopper attached to each bracket 21, and engages with handles 25 attached to both sides of the lower surface of the shelf 17 to prohibit the back and forth movement of the shelf 17 in a state positioned above the bracket 21. When the shelf 17 is pulled out of the front display chamber 7, the handle 25 is manually operated upward to release the engagement with the stopper 27.

  Here, when the product is replenished to the shelf 17, the engagement with the stopper 27 is released and the shelf 17 is pulled out to the front outside the display chamber 7. Even in this pulled out state, the brace 23 has its front end 23A. Is a size located below the rear portion of the shelf 17 and partitions the interior of the display chamber 7 behind the shelf 17 up and down. Thereby, even when the shelf 17 is pulled out, the display chamber 7 is in a state of being vertically partitioned by the braces 23 and the shelf 17 at the height of the original shelf 17.

  As shown in FIG. 3, the shelf 17 includes an upper surface plate 28, a heat insulating material (glass wool) 29 provided on the lower side of the upper surface plate 28, and an electric heater H attached to the heat insulating material 29 side of the upper surface plate 28. The side plate 26 descending from both sides of the top plate 28 and the shelf decoration 32 attached to the front end are provided, and the top plate 28, the side plate 26, and the shelf decoration 32 are all made of metal. The shelf decoration 32 is used to attach the price card 33, and a wind direction plate portion 32A extending obliquely forward and downward is formed at the lower part of the shelf decoration 32 attached to the uppermost and central shelves 17.

  As described above, the braces 23 of the brackets 21 that hold the uppermost and central shelves 17 are formed of a rectangular flat plate, the rear end 23B is located immediately before the partition plate 3, and the front portion thereof is the shelf 17. The front end 23A faces the rear side of the wind direction plate portion 32A of the shelf decoration 32 (FIG. 3). Further, as shown in FIG. 3, a predetermined interval is formed between the shelf 17 and the brace 23, and this is an air layer 35.

  On the other hand, air outlets 34 are respectively formed in the partition plate 3 at positions corresponding to the rear of the uppermost and central shelves 17 and the braces 23. As shown in FIG. 6, each outlet 34 has a horizontally long rectangular shape and extends over a range corresponding to substantially the entire width of the shelf 17, and is located at substantially the same height as the central portion in the front-rear direction of the brace 23, It corresponds to each. The inside of the cool air duct 6 and the inside of the display chamber 7 communicate with each other through the air outlets 34. Each air outlet 34 is provided with a damper 36 for opening and closing the air duct 6 and corresponds to each air outlet 34. Damper holders 37 are respectively attached in the cold air duct 6 at the position (hereinafter, for example, the uppermost shelf 17 will be described, but the central shelf 17 has the same configuration).

  The damper holder 37 includes a holder main body 38 having a substantially frame shape along the inside of the heat insulating material 2, the partition plate 3 and the side plate 8, and a rear side 38 </ b> A of the holder main body 38 to the inner surface of the heat insulating material 2. A rear wall 39 that stands up along and is fixed to the heat insulating material 2, a guide portion 41 that protrudes forward from both sides of the rear wall 39, and whose lower surface is inclined obliquely rearward and downward, and is located at the center of the holder body 38. And a central support portion 42 fixed to the heat insulating material 2. The front side 38B of the holder main body 38 is positioned lower than the front ends of the left and right sides 38C and 38D and is fixed to the partition plate 3.

  Both side portions of the front side 38B are raised and connected to the front ends of the left and right sides 38C and 38D, but the raised portions are located outside both side edges of the air outlet 34 and are located on the side of the cold duct 6 of the partition plate 3. It is set as the clamping part 43 which opposes at predetermined intervals. Between each clamping part 43 and the partition plate 3, the gap | interval G for damper clamping opened in the horizontal direction of the upper side and the blower outlet 34 side is each comprised. Moreover, the support part 42 located in the center of the holder main body 38 supports the center part so that the damper 36 will not bend when the damper 36 is in a horizontal state as will be described later. A magnet (permanent magnet) 44 is attached to the upper end, and the upper surface of the magnet 44 is located behind the upper edge of the air outlet 34 (the upper rear of the air outlet 34).

  On the other hand, the damper 36 is made of a horizontally long rectangular metal plate as shown in FIG. 6, and has a closed portion 46 positioned at an upper portion in a standing state, and a step narrower than the closed portion 46 and narrower than the closed portion 46. 50, and an operation portion 47 that is offset (bent) in a staircase shape. The lower edge of the operation portion 47 is bent slightly to the front so that it can be easily picked by a finger. The width dimension of the closing part 46 is larger than that of the air outlet 34, and the width dimension of the operation part 47 is smaller than that which can pass through the air outlet 34.

  In the damper 36, the operating portion 47 is inserted into the outlet 34 of the partition plate 3 from the cold air duct 6 side with the closing portion 46 being up and the operating portion 47 being down and the upper portion being back. In the upright state, the lower portions on both sides of the closing portion 46 are dropped into the gap G between the holding portion 43 of the damper holder 37 and the partition plate 3 from above so as to be detachable.

(1) Total Cooling Use State This state is shown in FIGS. 3, 4, and 5, and a step 50 between the closing portion 46 and the operation portion 47 is placed on the lower edge of the air outlet 34. Further, the lower portions on both sides of the closing portion 46 are held in the gap G by the sandwiching portion 43 and the partition plate 3 (portions indicated by broken lines in FIG. 4), and the damper 36 is brought up by its own weight. In this standing state, the closing portion 46 closes the outlet 34 along the cold air duct 6 side of the partition plate 3, and the operation portion 47 is formed along the display chamber 7 side of the partition plate 3. Note that the vertical dimension of the closing portion 46 is large enough to close the outlet 34 in this standing state.

  In this state, the air outlet 34 is closed by the closing portion 46 of the damper 36, and the cold air duct 6 is opened so that cold air can freely pass through the frame-shaped holder body 38 of the damper holder 37 ( (Indicated in FIG. 5 by white arrows). Therefore, when the entire display chamber 7 is used for cooling, the dampers 36 corresponding to the uppermost and central shelves 17 are erected to close the air outlets 34. Further, the electric heater H is not energized. When the cooler blower 12 is operated in this state, the cold air exchanged with the cooler 13 as described above rises in the cold air duct 6 and is discharged into the display chamber 7 from the cold air discharge port 9 at the upper edge of the opening. Since the cool air suction port 11 at the lower edge is sucked, a cool air curtain is formed at the front opening of the display chamber 7 and the entire display chamber 7 is cooled to a predetermined temperature (for example, refrigeration temperature).

(2) Cold / warm use state Next, for example, when the display room 7 above the uppermost shelf 17 is heated and used, and the display room 7 below is cooled and used, first, the display room 7 side The operation part 47 of the damper 36 located in the position is picked up or pushed from below to lift the damper 36, and the step 50 is brought into contact with the upper edge of the outlet 34 as shown in FIGS. Let In this state, the closing portion 46 is separated upward from the gap G between the partition plate 3 and the sandwiching portion 43, and when the operating portion 47 is pulled forward, the closing portion 46 is heavier than the operating portion 47 in the damper 36. Rotate clockwise in FIG. 13 with the stepped portion 50 as a fulcrum by its own weight (indicated by a broken line arrow in FIG. 15). Further, the electric heater H of the uppermost shelf 17 is energized to generate heat.

  At this time, both end portions of the front end of the closing portion 46 are guided by the lower surface inclined obliquely rearward and downward of the guide portion 41 of the damper holder 37 and smoothly rotate (move). Then, as shown in FIGS. 17, 18, and 19, the closing portion 46 is placed on the support portion 42 of the damper holder 37 and becomes horizontal. In this horizontal state, the closing portion 46 of the damper 36 closes the inside of the holder body 38 of the damper holder 37, so that the inside of the cold air duct 6 is closed by the closing portion 46 of the damper 36 at this height. Further, since the closing portion 46 of the damper 36 is attracted by the magnetic force to the magnet 44 of the support portion 43, this horizontal state is maintained.

  On the other hand, since the blower outlet 34 is opened, the cold air that has risen by exchanging heat with the cooler 13 is blocked by the closing portion 46 and heads toward the front blower outlet 34 and blows forward from the blower outlet 34. (Indicated by white arrows in FIG. 19). Moreover, since the operation part 47 protrudes from the upper edge part of the blower outlet 34 to the display chamber 7 side, and is located between the shelf 17, the brace 23, and the partition plate 3, as shown in FIG. The cold air does not leak upward from the shelf 17 and is guided forward by the operation unit 47 and further guided by the brace 23 to reach the front part of the shelf 17 (the front part of the brace 23) (indicated by white in FIG. 17). Indicated by an arrow).

  Since the cold air that has been guided by the braces 23 and reached the front part of the shelf 17 along its lower surface hits the wind direction plate part 32A of the shelf decoration 32 that extends diagonally forward and downward in front of it, the direction is changed downward. The air is blown downward near the opening of the display chamber 7 below the shelf 17. Thereby, the inside of the lower display chamber 7 is cooled while the cool air curtain is formed in the opening of the display chamber 7 below the shelf 17 (the uppermost shelf) (cooling use state).

  On the other hand, since the electric heater H is energized and generates heat, the upper surface plate 28 of the shelf 17 is heated, and not only the products displayed on the shelf 17 but also the inside of the display chamber 7 above the shelf 17 is heated. It becomes a state. Here, since cold air flows on the lower surface of the brace 23, the temperature of the brace 23 is lowered, but an air layer 35 is formed between the brace 23 and the shelf 17. The air layer 35 is a space that does not allow air to convect, thereby preventing or suppressing inconvenience that the shelf 17 and the display chamber 7 above it indirectly cool from the brace 23. Moreover, since the heat from the electric heater H is also transmitted to the shelf decoration 32, the wind direction plate portion 32A is also heated. Thereby, the dew condensation to the wind direction board part 32A is prevented.

  In addition, when heating above the central shelf 17 is used, as shown in FIG. 16, the damper 36 of the shelf 17 is placed in a horizontal state, the air outlet 34 is opened, and the cold air duct 6 is closed at that position. (In FIG. 16, the damper 36 of the uppermost shelf 17 is also in the horizontal state, but may be in the standing state). As a result, the cold air rising in the cold air duct 6 is blown out from the outlet 34 at the rear of the central shelf 17 as described above, guided to the braces 23 on the lower side of the shelf 17, and below the front portion thereof. It comes to be blown into the display room 7. Further, if the electric heaters H of the uppermost and central shelves 17 are heated, the upper side of the central shelf 17 can be used for heating and the lower side can be used for cooling.

  As described above, in the present invention, the damper 36 that closes the air outlet 34 in an openable and closable manner, and the damper holder 37 provided in the cold air duct 6 corresponding to the air outlet 34 are provided, and the damper holder 37 is provided with a partition plate. 3 is provided with a sandwiching portion 43 opposed to the cold air duct 6 side with an interval, and a support portion 42 located on the upper rear side of the air outlet 34, and the damper 36 includes a closing portion 46 located on the cold air duct 6 side. The operation part 47 located on the display chamber 7 side is formed, and the damper 36 stands up and closes with the closing part 46 being detachably inserted between the partition plate 3 and the holding part 43 of the damper holder 37. The portion 46 closes the air outlet 34 along the cold air duct 6 side of the partition plate 3, the operation portion 47 extends along the display chamber 7 side of the partition plate 3, lifts the damper 36 by the operation portion 47, and the closure portion 46 Water is removed from between the partition plate 3 and the clamping part 43. The closing portion 46 is supported by the support portion 42 of the damper holder 37 to close the cold air duct 6, and the operation portion 47 protrudes from the blowout port 34 toward the display chamber 7, and is between the shelf 17, the brace 23 and the partition plate 3. Therefore, the air outlet 34 and the cool air duct 6 can be opened and closed by the damper 36 without using a complicated structure such as rotation or slide using a rotating shaft.

  That is, when the upper and lower sides of the shelf 17 are cooled and used, the damper 36 is raised and the air outlet 34 is closed. When the electric heater H of the shelf 17 is heated to heat and use the interior of the display chamber 7 above the shelf 17, and cools by discharging cool air below the shelf 17, the operation unit 47 By lifting the damper 36, closing the cold air duct 6 in a horizontal state, and opening the outlet 34, it becomes possible to discharge the cold air to the lower side of the shelf 17, and the production cost is significantly reduced by simplifying the structure. Will be able to.

  Moreover, since the clamping part 43 of the damper holder 37 is located on both sides of the outlet 34 and clamps both sides of the closing part 46 of the damper 36, the standing state of the damper 36 can be stably maintained. . Moreover, since the support part 42 of the damper holder 37 maintains the horizontal state of the damper 36 by the magnetic force of the magnet 44, the horizontal state of the damper 36 is stably maintained with a simple structure, and is raised from the state. Operation is also easy.

  Further, since the damper holder 37 is provided with the guide portion 41 for guiding the movement of the damper 36 from the standing state to the horizontal state, the damper 36 can be smoothly rotated from the standing state to the horizontal state. become able to. Further, the operation portion 47 of the damper 36 is in a horizontal state protruding from the blowout port 34 toward the display chamber 7 side, and guides the cold air blown from the blowout port 34 toward the front of the shelf 17 and the brace 23. The cold air can be guided to the front portion of the shelf 17 by the operation portion 47 of 36, and the cold air can be drawn from the cold air duct 6 smoothly.

  Further, the shelf 17 is positioned on the upper side of the brace 23 and is held by each bracket 21. The brace 23 crosses to the front part of the shelf 17 and guides the cold air blown out from the outlet 34 to the front part of the shelf 17. Since it did in this way, the cold air blown out from the blower outlet 34 of the partition plate 3 can be guided to the front part of the shelf 17 by the brace 23 of the bracket 21. As a result, when heating is used above the shelf 17 and cooling is used below, the cool air is guided to the front of the shelf 17 by the braces 23 of the bracket 21 without forming a special shelf duct or the like. Thus, it is possible to discharge the product downward, and the production cost can be reduced by simplifying the structure.

  In particular, the shelf 17 is detachably held by the bracket 21, and the brace 23 moves up and down in the display chamber 7 behind the shelf 17 in a state where the shelf 17 is pulled out from the display chamber 7 for replenishment of goods. Since partitioning is performed, while the shelf 17 is pulled out and replenished with goods, the inconvenience that warm air in the display chamber 7 above the shelf 17 and cold air in the lower display chamber 7 flow is prevented. Will be able to. Thereby, it becomes possible to contribute to energy saving.

  In addition, since the shelf decoration 32 provided at the front end of the shelf 17 is provided with the wind direction plate portion 32A that directs the cold air blown out from the blowout port 34 and guided by the brace 23 downward, the front of the partition plate 3 from the front. It is possible to change the direction of the cool air that has flowed to the bottom of the shelf 17 by the shelf decoration 32, so that it is not necessary to attach a special wind direction plate or the like, and the structure can be further simplified. It becomes.

  Next, FIG. 20, FIG. 21, and FIG. 22 show another embodiment. In addition, in each figure, what is shown with the same code | symbol as FIG. 1 thru | or FIG. 19 shall show | play the same or similar function. In this case, the entire front side 38B of the damper holder 37 rises to the cold air duct 6 side of the partition plate 3 with a predetermined interval and reaches the front ends of the left and right sides 38C and 38D. A rectifying unit 49 including a plurality of through holes 48 is formed.

  And this rectification | straightening part 49 respond | corresponds to the blower outlet 34, and the above-mentioned right and left clamping part 43 becomes the shape comprised in the both ends of the rectification | straightening part 49 located in the outer side of the both-sides edge of the blower outlet 34. By configuring such a rectifying portion 49 in the damper holder 37, it is possible to rectify the cold air blown from the blowout port 34, or to adjust the height and the blowout amount of the blowout portion, and from the shelf 17 downward. A proper amount of cold air can be discharged uniformly.

  Next, FIGS. 23, 24, and 25 show still another embodiment. In addition, in each figure, what is shown with the same code | symbol as FIG. 1 thru | or FIG. 19 shall show | play the same or similar function. In this case, a plurality of protrusions 51 extending in the front-rear direction are formed on the brace 23. Moreover, each protrusion 51 is arrange | positioned so that the front part may spread in the left-right direction.

  The cold air blown out from the air outlet 34 of the partition plate 3 and guided to the operation portion 47 of the damper 36 and reaching the lower surface of the air inlet 23 is rectified by the ridges 51 and diffused in the left-right direction to diffuse the shelf 17 To the front. Thus, the cool air is uniformly discharged downward from the shelf 17, and the cooling of the left and right corners in the display chamber 7 where the cool air is relatively short and is likely to be compensated can be compensated.

  In each of the above embodiments, the case where the interior of the display chamber 7 above the shelf 17 is heated by the electric heater H has been described. However, the cold air duct 6 is closed by the damper 36 without providing the electric heater. The present invention is also effective for a showcase that uses the interior of the upper display chamber 17 in a non-cooled state.

  Further, in the embodiment, the cold air from the air outlet 34 is guided to the front portion of the shelf 17 by the brace 23 of the bracket 21, but the present invention is effective even if a shelf duct is formed on the shelf 17 as in the prior art. is there.

DESCRIPTION OF SYMBOLS 1 Showcase 2 Heat insulation wall 3 Partition plate 6 Cooling air duct 7 Display room 17 Shelf 18 Support column 19 Engagement hole 21 Bracket 23 Bracing 32 Shelf decoration 32A Wind direction plate part 34 Air outlet 36 Damper 37 Damper holder 41 Guide part 42 Support part 43 Holding part 44 Magnet 46 Closure part 47 Operation part 49 Rectification part 51 Projection H Electric heater

Claims (7)

A partition plate is provided inside the heat insulating wall, a cold air duct is formed between the partition plate and the heat insulating wall, and a display chamber having a front surface opened inside the partition plate is formed, and a shelf for displaying products is provided in the display chamber In the showcase that guides the cool air rising in the cool air duct from the air outlet formed in the partition plate to the front part of the shelf, and can be discharged into the display chamber below the shelf,
A damper for freely closing and opening the air outlet;
A damper holder provided in the cold air duct corresponding to the air outlet,
The damper holder has a sandwiching portion facing the cold air duct side of the partition plate with an interval, and a support portion located on the upper rear side of the air outlet,
The damper has a closed portion located on the cold air duct side and an operation portion located on the display chamber side, and the closed portion is detachable between the partition plate and the holding portion of the damper holder. Standing in a state of being dropped, the closing portion closes the outlet along the cold duct side of the partition plate, the operation portion extends along the display chamber side of the partition plate, and the operation portion And is closed in a state where the closing portion is separated from between the partition plate and the holding portion, the closing portion is supported by a support portion of the damper holder to close the cold air duct, and the operation portion is The operation part projects cold air blown out from the air outlet in a state of projecting from the air outlet toward the display chamber and positioned between the shelf and the partition plate, and the operation unit protrudes from the air outlet toward the display room. characterized in that the guided toward the front of the shelf Showcase that.   The showcase according to claim 1, wherein an electric heater is provided on the shelf.   3. The showcase according to claim 1, wherein the sandwiching portions of the damper holder are located on both sides of the air outlet and sandwich both sides of the closing portion of the damper. 4.   The showcase according to any one of claims 1 to 3, wherein the support portion of the damper holder has means for maintaining a horizontal state of the damper.   The showcase according to claim 4, wherein the support portion of the damper holder has a magnet and maintains the damper in a horizontal state by a magnetic force.   The showcase according to claim 1, wherein the damper holder has a guide portion that guides the movement of the damper from an upright state to a horizontal state.   The showcase according to any one of claims 1 to 6, wherein the damper holder includes a rectifying unit that rectifies cold air blown from the air outlet.

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