JP2019058419A - Showcase - Google Patents

Abstract

To properly keep merchandise in a storage area in different temperature states.SOLUTION: A showcase includes: a storage area 2 for storing merchandise; first air circulation means 30 having an air flow passage 30a communicated with the storage area 2 through a suction port 9a and an air outlet 9b, which circulates air between the air flow passage 30a and the storage area 2; and an evaporator 35 for cooling air circulated by the first air circulation means 30. The showcase further includes a middle duct 90 for sectioning the storage area 2 into an upper part and a lower part while blocking the air flow passage 30a by being mounted in a manner to penetrate a back plate 3 of the storage area 2, and making the temperatures in the upper part and in the lower part different, and second air circulation means 40 having an air flow passage 40a provided separated from the air flow passage 30a in a manner to be communicated with the storage region 2 through the suction port 9a and the air outlet 9b, which circulates air between the air flow passage 40a and the storage area 2.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a showcase, and more particularly to a showcase for holding a product at a desired temperature.

  Conventionally, a showcase that holds a product to be stored at a desired temperature state has been proposed in Patent Document 1. In the showcase proposed in Patent Document 1, a plurality of product placement racks are provided in a plurality of stages along the vertical direction in the storage area of the case main body having an opening formed on the front surface, and each product placement The goods are displayed by being placed on the shelf.

  In addition, a flow path of air drawn in through the suction port provided at the lower front of the storage area is formed in the case main body and at a position outside the storage area, and the air flow above the storage area is formed. The passage is provided with an evaporator.

  The air passing through such an air flow path is cooled by the evaporator and then blown out from the outlet provided at the upper front of the storage area. The air blown out from the outlet is circulated through the flow path of the air sucked into the suction port, whereby the internal air in the storage area is cooled and the product placed on the product placement shelf is adjusted to the desired temperature It is held.

  In such a showcase, since the evaporator is provided on the upper side of the storage area, the capacity of the storage area is sufficient compared to the case where the evaporator is provided on the back side or the lower side of the storage area. It has the advantage of being able to be large and having a sufficient display space for goods.

Patent No. 3695885

  By the way, in the showcase proposed in Patent Document 1 mentioned above, the suction port is provided at the lower front of the storage area, and the air outlet is provided at the upper front of the storage area, and the evaporator is further provided in the storage area. Since it is provided on the upper side, the air flow path on the back side of the storage area is sucked from the suction port and the air passes toward the evaporator. That is, only the air before being cooled by the evaporator passes through the air flow path on the back side of the storage area.

  Therefore, the storage area is divided up and down by a partition member such as an intermediate duct, and the air flow passage on the back side of the storage area is also divided up and down by the partition member, the air passing through the evaporator only on one side Was difficult to introduce, and as a result, it was difficult to keep goods in the storage area at different temperature conditions.

  An object of the present invention is to provide a showcase capable of favorably holding goods in a storage area in different temperature states in view of the above-mentioned situation.

  In order to achieve the above object, the showcase according to the present invention is formed in a case body, and includes a storage area for storing a product, a suction port formed in a lower front portion of the storage area, and a front upper portion of the storage area. It has a first air flow passage provided inside the case main body in a manner to communicate with the storage area through the formed blow-out port, and air is circulated between the first air flow passage and the storage area A showcase comprising: first air circulation means; and temperature control means for adjusting the air circulated by the first air circulation means to a predetermined temperature, and holding the product at a desired temperature state. An intermediate duct for dividing the storage area up and down to have different temperatures while blocking the first air flow path by being installed in a manner to penetrate the back plate constituting the back surface, the suction port and the air outlet Through A second air flow passage is provided in the inside of the case main body in such a manner as to communicate with the storage area, and divided from the first air flow passage, and air is provided between the second air flow passage and the storage area And second air circulating means for circulating the air.

  Further, according to the present invention, in the showcase, the first air flow passage and the second air flow passage are provided side by side on the left and right sides, and a first outlet which is an outlet of the first air flow passage, and An outlet channel that communicates with the outlet and a second outlet that is the outlet of the second air channel and the outlet communicate with each other, and air that is provided in the outlet channel and passes through is uniform And a rectifying mechanism that rectifies so as to be

  Further, according to the present invention, in the showcase described above, the rectifying mechanism is provided to extend in the left-right direction, and the air guide holes are formed such that the central region is sparse and the left and right ends are dense. A first air guide plate, and a pair of left and right second guides installed slantingly extending in the central region of the first air guide plate as it goes downstream on the upstream side of the first air guide plate. And a wind plate.

  Further, according to the present invention, in the showcase, the second air guide plate is characterized in that a plurality of passage holes are formed along the extending direction.

  According to the present invention, the case main body is in communication with the storage area through the suction port formed at the lower front of the storage area for storing the goods and the outlet formed at the upper front of the storage area. A first air flow passage provided inside the air circulation device for circulating air between the first air flow passage and the storage area, and the temperature control means is configured to set the air to be circulated by the first air circulation means The storage duct is divided up and down while blocking the first air flow path by mounting the intermediate duct in such a manner that the intermediate duct is installed in a manner to penetrate the back plate constituting the back face of the storage compartment. And the second air circulation means has a second air flow passage provided inside the case main body in such a manner as to communicate with the storage area through the suction port and the blowout port. Because air is circulated between the air flow path and the storage area, The second air circulation means can adjust the upper area of the intermediate duct to a desired temperature while the lower area of the intermediate duct is adjusted to a predetermined temperature by the ring means, whereby the goods in the storage area are at different temperatures. The effect of being able to maintain good condition is achieved.

FIG. 1 is a front view showing a showcase according to an embodiment of the present invention. FIG. 2 is a perspective view showing a showcase according to an embodiment of the present invention. FIG. 3 schematically shows the showcase shown in FIGS. 1 and 2 and is a cross-sectional view taken along the line AA in FIG. FIG. 4 schematically shows the showcase shown in FIGS. 1 and 2, and is a cross-sectional view taken along the line B-B in FIG. FIG. 5 is a front view showing the back plate shown in FIGS. 1 to 4. FIG. 6 is an enlarged perspective view of the back plate shown in FIGS. 1 to 4. 7 is a perspective view showing the back flapper shown in FIG. 5 and FIG. FIG. 8 is a plan view schematically showing the lead-out channel shown in FIGS. 3 and 4. FIG. 9 is a perspective view schematically showing the lead-out channel shown in FIGS. 3 and 4. FIG. 10 is a perspective view showing the under-shelf duct shown in FIG. FIG. 11 is a cross-sectional view showing the lower part of an arbitrary product placement shelf. FIG. 12 is a cross-sectional view showing the lower part of an arbitrary product placement shelf. FIG. 13 is a perspective view showing the sheet metal member shown in FIG. 11 and FIG. FIG. 14 is a perspective view showing the flow path switching means shown in FIG. FIG. 15 is a side view showing the flow path switching means shown in FIG. FIG. 16 is a cross-sectional view showing the vicinity of the section opening shown in FIGS. 3 and 4 in an enlarged manner. FIG. 17 is a cross-sectional view showing a state in which an intermediate duct is inserted in the lower part of an arbitrary product placement shelf. FIG. 18 is a cross-sectional view showing the vicinity of the section opening shown in FIG. 3 and FIG. 4 in an enlarged manner.

  Hereinafter, preferred embodiments of a showcase according to the present invention will be described in detail with reference to the accompanying drawings.

  1 and 2 show a showcase according to an embodiment of the present invention, FIG. 1 is a front view, and FIG. 2 is a perspective view. 3 and 4 schematically show the showcase shown in FIGS. 1 and 2. FIG. 3 is a sectional view taken along the line A-A in FIG. 1 and FIG. 4 is a sectional view taken along the line B-B in FIG. It is. The showcase illustrated here is installed in a store such as a supermarket or a convenience store, for example, and accommodates goods to be sold, and includes a case main body 1.

  The case body 1 includes a bottom surface portion 1A, a rear surface portion 1B, and a top surface portion 1C, and a storage area 2 having front and right and left side surfaces open is configured in a portion surrounded by the bottom surface portion 1A, the rear surface portion 1B, and the top surface portion 1C. In addition, an air circulation unit 20, an under-shelf duct 60, a channel switching means 80, and an intermediate duct 90 are provided.

  In the storage area 2, the back surface is configured by the back plate 3 which is the front surface of the back surface portion 1B, and a plurality of stages (7 stages in the illustrated example) of product placement shelves 4 are provided. The product placement racks 4 are conventionally known, and are supported by a pair of left and right brackets 6 attached to shelf posts 5 erected in the left and right side regions of the back plate 3. A shelf board 8 is bridged between the brackets 6 via a slider 7. The commodity placement rack 4 is for placing and displaying commodities on the upper surface of the shelf board 8. The slider 7 slidably supports the shelf plate 8 with respect to the bracket 6 in the front-rear direction.

  While the suction port 9a is formed in the front lower part of such a storage area 2, ie, the front upper part of bottom face part 1A, the blower outlet 9b is formed in the front upper part of storage area 2, ie, the front lower part of top surface part 1C. It is done.

  The suction port 9 a is an opening for sucking in the air inside the storage area 2, and is extended along the lateral direction of the storage area 2. The blower outlet 9 b is an opening for blowing air into the storage area 2, and is extended in the left-right direction of the storage area 2. A flow straightening member 9c having a honeycomb structure, for example, is attached to the blowout port 9b.

  As is apparent from the drawing, the back plate 3 is formed so as to be inclined rearward so as to be gradually upward. As shown in FIGS. 5 and 6, a rectangular back opening 3a is formed in the back plate 3 below a predetermined height level, that is, below the fourth product placing shelf 4 from the top. A plurality of back flappers 10 are provided in such a manner as to swing in the front-rear direction.

  FIG. 7 is a perspective view showing the back flapper 10 shown in FIG. 5 and FIG. The back flapper 10 is formed, for example, by bending a steel plate, and is a long member whose longitudinal direction is the left-right direction. The back flapper 10 has a flapper base 11, a flapper back extension 12, and a flapper abutment 13.

  The flapper base portion 11 is a flat portion having a curled flapper shaft portion 11a at the upper end portion, and a plurality of vent holes 11b are formed along the left-right direction (longitudinal direction). The vent hole 11 b is formed in such a manner that the central region is sparse with respect to the flapper base 11 and the left and right end regions are dense. The flapper rear extension portion 12 is a portion that extends rearward from the lower end portion of the flapper base 11 and then temporarily bends downward, and then extends rearward. The flapper contact portion 13 is a portion extending upward from the rear end portion of the flapper rear extension 12.

  The left and right end portions of the flapper shaft portion 11a are inserted into holes (not shown) formed at the left and right side edge portions of the back surface opening 3a of the back plate 3, and the back surface flapper 10 swings around the axial center of the flapper shaft portion 11a. By being pivotally supported as much as possible, it is provided in a mode of rocking in the front-rear direction. As shown in FIGS. 5 and 6, the back flapper 10 is installed side by side in the back opening 3a, and normally closes the back opening 3a. The back flapper 10 opens and closes a part of the back opening 3a by swinging.

  As shown in FIG. 3 and FIG. 4, the air circulation unit 20 is configured to include the introduction flow passage 21, the first air circulation means 30, the second air circulation means 40 and the discharge flow passage 22.

  The introduction channel 21 is provided in a manner to extend in the front-rear direction in the bottom surface portion 1A. The introduction channel 21 communicates with the suction port 9a.

  The first air circulation means 30 is configured to include a right air flow path (first air flow path) 30a and a right circulation fan 30b.

  The right air flow passage 30a includes a first right back flow passage 31, a right upper flow passage 32, a second right back flow passage (first back flow passage) 33, and a third right back And a side flow passage (second back flow passage) 34.

  The first right back side flow passage 31 is provided to extend in the vertical direction in the rear surface portion 1B. The first right back side flow passage 31 is provided at its lower part with a right introduction port 31a which is an inlet of the right air flow path 30a, and the right introduction port 31a faces the introduction flow path 21. There is. That is, the first right back side flow passage 31 communicates with the suction port 9 a through the introduction flow passage 21.

  The right upper side flow passage 32 is provided in the top surface portion 1C, and is in communication with the first right back side flow passage 31. The second right back side flow passage 33 extends in the vertical direction in the rear surface portion 1B, and communicates with the right upper flow passage 32. The second right back side flow passage 33 is extended on the front side of the first right back side flow passage 31 and is separated from the first right back side flow passage 31.

  The third right back side flow passage 34 extends in the up-down direction in the rear surface portion 1B. The third right back side flow passage 34 is extended between the second right back side flow passage 33 and the back plate 3, and the lower end portions of the third right back side flow passage 33 are opposite to each other. It is divided by the dividing plate 14 in a communicating state, and is in communication with the storage area 2 through an air vent 11 b formed in the back flapper 10. The third right back side channel 34 is provided with a right outlet 34a at the top, which is an outlet of the right air channel 30a, and the right outlet 34a faces the outlet channel 22. There is.

  The right circulation fan 30 b is driven by an instruction given from a control means (not shown) to circulate air, and is disposed at a predetermined portion of the first right back side flow passage 31. In the present embodiment, the right circulation fan 30b is disposed at a predetermined portion of the first right back flow channel 31, but in the present invention, the arrangement position of the right circulation fan 30b is particularly limited. It may be disposed anywhere as long as it can exert the function of the right circulation fan 30b described later.

  The second air circulation means 40 is configured to include a left air flow path (second air flow path) 40a and a left circulation fan 40b.

  The left air flow passage 40 a includes a left back side flow passage 41. The left rear side flow passage 41 is divided from the first right rear side flow passage 31 on the left side of the first right rear side flow passage 31 in the rear surface portion 1B and extends along the vertical direction Provided in The left back side flow passage 41 is provided at its lower part with a left introduction port 41a which is an inlet of the left air flow path 40a, and the left introduction port 41a faces the introduction flow path 21. That is, the left back side flow passage 41 communicates with the suction port 9 a through the introduction flow passage 21. The left back side flow passage 41 serves as an outlet of the left air flow passage 40a at its upper part, and is provided with a left side discharge port 41b located on the left side of the right side discharge port 34a. The outlet outlet 41 b faces the outlet channel 22.

  The left circulation fan 40 b is driven by an instruction given from a control means (not shown) to circulate air, and is disposed at a predetermined portion of the left back side flow passage 41. In the present embodiment, the left circulation fan 40b is disposed at a predetermined portion of the left back side flow passage 41. However, in the present invention, the arrangement position of the left circulation fan 40b is particularly limited. Instead, it may be disposed anywhere as long as it can exhibit the function of the left circulation fan 40b described later.

  The lead-out flow path 22 is provided in a manner to extend in the front-rear direction in the top surface portion 1C. The lead-out channel 22 allows the right outlet 34a and the outlet 9b to communicate with each other, and allows the left outlet 41b and the outlet 9b to communicate with each other. That is, the lead-out flow passage 22 is a common flow passage that causes the air that has passed through the right air flow passage 30a and the air that has passed through the left air flow passage 40a to flow to the outlet 9b. Thus, the right air flow passage 30a communicates with the storage area 2 through the suction port 9a and the blowout port 9b, and the left air flow path 40a communicates with the storage area 2 through the suction port 9a and the blowout port 9b. ing.

  The first air circulation means 30 constituting such an air circulation unit 20 sucks the air inside the storage area 2 through the suction port 9a by the rightward circulation fan 30b being driven, and the sucked air is introduced into the introduction channel 21 to deliver air to the air passage 11b via the right air passage 30a, or deliver air to the outlet 9b via the right air passage 30a and the outlet passage 22. is there. Air is circulated between the inside and the outside of the storage area 2 by blowing out the air into the storage area 2 through the air vent 11 b or the air outlet 9 b.

  In addition, the second air circulation means 40 sucks the air inside the storage area 2 through the suction port 9a by driving the left circulation fan 40b, and after the sucked air flows through the introduction flow path 21, the left air Air is delivered to the outlet 9b via the flow path 40a and the outlet flow path 22 and air is circulated between the inside and the outside of the storage area 2 by blowing out the air into the storage area 2 through the outlet 9b. It is a thing.

  An evaporator (temperature adjusting means) 35 is provided in the upper right channel 32 of the right air channel 30a. That is, the evaporator 35 is disposed above the storage area 2. The evaporator 35, together with a compressor, a condenser and an expansion mechanism (not shown), constitute a refrigerant circulation means for circulating the refrigerant. Here, the compressor compresses the refrigerant. The condenser is for condensing the refrigerant compressed by the compressor. The expansion mechanism adiabatically expands the refrigerant condensed by the condenser to a low temperature and low pressure state. The evaporator 35 exchanges heat between the air passing through the right upper flow passage 32 from the rear to the front by driving the right circulation fan 30 b and the refrigerant adiabatically expanded by the expansion mechanism, In detail, the air passing through the upper right channel 32 is cooled by evaporating the refrigerant. The refrigerant evaporated in the evaporator 35 is returned to the compressor again and compressed.

  As shown in FIG. 8 and FIG. 9, the rectifying mechanism 50 is provided in the above-described lead-out flow path 22. The rectifying mechanism 50 is configured to include a first air guiding plate 51 and a second air guiding plate 52.

  The first air guide plate 51 is an elongated member made of, for example, a steel plate or the like. The first air guide plate 51 is installed on the front side of the lead-out channel 22, that is, in the vicinity of the outlet 9b, in such a manner that the longitudinal direction is in the lateral direction. The first air guide plate 51 is provided with a plurality of air guide holes 53. More specifically, in the first air guide plate 51, a plurality of air guide holes 53 are formed in such a manner that the central region is sparse and the left and right end portions are dense. The air guide holes 53 are long holes whose longitudinal direction is the vertical direction, and their dimensions are substantially the same.

  The second baffle plate 52 is provided on the rear side of the first baffle plate 51, that is, on the upstream side of the first baffle plate 51, and the left and right pair of right baffle plates 52a and the left baffle plate 52a are provided. And a plate 52b.

  The right air guide plate 52 a is disposed more rearward than the right end portion of the first air guide plate 51. More specifically, the right air guide plate 52a is installed so as to be inclined forward gradually toward the left, that is, in a manner to extend in the central region of the first air guide plate 51 toward the downstream. ing. A plurality of passage holes 54 are formed in the rightward air guide plate 52a along the left-right direction.

  The left wind guide plate 52 b is disposed more rearward than the left end portion of the first wind guide plate 51. More specifically, left wind guide plate 52b is installed so as to be gradually inclined forward toward the right, ie, in a manner extending in the central region of first wind guide plate 51 toward the downstream. ing. In the left air guide plate 52b, a plurality of passage holes 54 are formed along the left-right direction.

  FIG. 10 is a perspective view showing the under-shelf duct 60 shown in FIG. As shown in FIG. 10, the under-shelf duct 60 is formed, for example, by bending a steel plate, and the duct base end portion 61 and the duct tip end portion 62 are integrally formed.

  The duct base is a flat portion having a curled duct shaft portion 61a at the front end. The duct distal end portion 62 is a flat plate-like portion which gradually inclines rearward as going downward from the rear end edge of the duct proximal end portion 61.

  Such an under-shelf duct 60 is provided from the fourth product placing shelf 4 to the lower part of the product placing shelf 4 as shown in FIGS. 11 and 12. That is, the under-shelf duct 60 is inserted into a hole (not shown) formed in the bracket 6 at both ends of the duct shaft portion 61a, so that the front and rear ends of the duct shaft portion 61a are around the axial center of the duct shaft portion 61a. It is constructed in a swinging manner.

  In the under-shelf duct 60, in the normal state, a part of the lower surface of the duct base end 61 abuts on the upper regulating piece 65 installed between the brackets 6, and a part of the front surface of the duct tip 62 is between the brackets 6. Swinging forward is restricted by coming into contact with the lower regulating piece 66 mounted on the upper side of the lower regulating piece 66, whereby the upper regulating piece 66 is formed by the rear end edge of the upper regulating piece 65 and the upper end edge of the lower regulating piece 66 The insertion opening 67 is closed.

  The under-shelf duct 60 is for guiding the air blown out from the vent hole 11b of the back flapper 10 to the vicinity of the lower surface of the shelf plate 8 of the product placing shelf 4 when the insertion opening 67 is closed. .

  A sheet metal member 70 is attached to the under-shelf duct 60 by welding, for example. FIG. 13 is a perspective view showing the sheet metal member 70. As shown in FIG. As shown in FIG. 13, the sheet metal member 70 is formed, for example, by bending a steel plate, and the mounting portion 71, the upper extending portion 72, and the front extending portion 73 are integrally formed.

  The attachment portion 71 is a flat portion attached to the rear surface of the upper portion of the duct tip 62 for welding or the like. The upper extension portion 72 is a bent portion that extends forward in FIG. 11 and FIG. 12 from the upper end edge of the attachment portion 71 and then gradually inclines forward as going upward. In the upper extending portion 72, a plurality of passage openings 72a are formed along the left-right direction. The front extending portion 73 is a flat portion extending forward in FIGS. 11 and 12 from the upper end edge of the upper extending portion 72.

  Such a sheet metal member 70 has a size such that the upper surface of the front extension 73 is close to the lower surface of the shelf plate 8 of the product placement shelf 4 when the attached under-shelf duct 60 is in the normal state. The mohair 74 is attached to the upper rear surface of the extending portion 72 over the entire length in the left-right direction, and a flexible heat insulating material 75 is attached to the entire length in the left-right direction of the lower surface of the front extending portion 73.

  The flow path switching means 80 is provided in the right air flow path 30a as shown in FIG. 3, and as shown in FIGS. 14 and 15, it is configured to include a duct flapper 81 and a link mechanism 82. ing.

  The duct flapper 81 is an elongated member whose longitudinal direction is the left-right direction. As shown in FIG. 16, the duct flapper 81 is provided in such a manner as to pass through the section opening 14a formed in the section plate 14, and includes a base 81a, a first action portion 81b, and a second action portion 81c. Are integrally formed. Here, the section opening 14a is formed above the back opening 3a in the section plate 14, and allows the second right back side flow passage 33 and the third right back side flow passage 34 to communicate with each other. .

  The base portion 81a is a portion pivotally supported so as to be able to swing in the front-rear direction by flapper support pieces 83 whose left and right end portions are attached to both side surfaces of the third right back surface side flow passage 34. The first acting portion 81b is a portion extending in a manner of being gradually inclined downward as going rearward from the rear end edge of the base 81a in FIG. The second acting portion 81c is a portion extending in such a manner as to be gradually inclined upward as going forward from the front end edge of the base 81a in FIG.

  The link mechanism 82 is an elongated member extending in the vertical direction at the central portion in the left-right direction of the third right back surface side channel 34. The link mechanism 82 is U-shaped when viewed from above, and the movement in the left and right direction and the front and rear direction is restricted by the restriction plate 84 inserted inside. That is, the link mechanism 82 is allowed to move in the vertical direction.

  In the link mechanism 82, a plurality of engaging pieces 82a protruding forward are formed in the vertical direction. The engaging pieces 82 a are provided in the same number as the number of the back flappers 10 and each advance on the swinging trajectory of the back flappers 10.

  Further, in the link mechanism 82, the shaft-like portion 82b formed at the upper end portion is inserted into the long hole 85a of the locking piece 85 attached to the front surface of the second action portion 81c of the duct flapper 81. Is rotatably connected to the

  In the flow path switching means 80 having such a configuration, in a state in which the back opening 3a is closed without swinging any back flapper 10, the duct flapper 81 is shown in FIG. 16 by the weight of the link mechanism 82. , And the compartment opening 14a is opened. In this posture, the first action portion 81b closes the downstream side portion of the second right back side flow passage 33 with respect to the section opening 14a, and the second action portion 81c is a third right back direction flow path A portion upstream of the section opening 14a at 34 is closed.

  The intermediate duct 90 is a conventionally known one, and has a substantially flat form as a whole. The intermediate duct 90 is detachably provided to the showcase. And when it mounts | wears a showcase, as shown in FIG.3 and FIG.4, it is the aspect which penetrates a part of back surface opening 3a opened by rock | fluctuating either back surface flapper 10 back. It is attached to the back plate 3, and divides the storage area 2 and the 3rd right back side flow path 34 up and down. In the rear end portion of the intermediate duct 90, a notch (not shown) for inserting the link mechanism 82 is formed.

  The intermediate duct 90 has a duct portion 91 extending in the front-rear direction inside, and has a rear end opening 91a and an intermediate outlet 91b. The rear end opening 91a is formed on the lower surface of the rear end portion, and when attached to the rear plate 3, faces the third right rear side flow passage 34. The middle blowout port 91 b is formed on the lower surface of the front end portion of the middle duct 90, and is an opening for blowing out the air having passed through the duct portion 91.

  And, when the intermediate duct 90 is mounted in this way, the under-shelf duct 60 is pressed by the intermediate duct 90 inserted from the front, as shown in FIG. Swing back around and open the insertion opening 67 allowing the intermediate duct 90 to be inserted through the insertion opening 67. At this time, the sheet metal member 70 attached to the under-shelf duct 60 abuts on the shelf mohair 8 a on which the mohair 74 is attached to the lower surface of the shelf plate 8 of the product placement shelf 4. By abutting, an enclosed space S is formed between the intermediate duct 90 and the commodity placement rack 4 immediately above it.

  In addition, when the intermediate duct 90 is mounted, the back flapper 10 pressed by the intermediate duct 90 is swung rearward. As shown in FIG. 18, the flapper contact portion 13 abuts against the engagement piece 82a of the link mechanism 82 to press the engagement piece 82a. Thus, the link mechanism 82 moves upward, and the duct flapper 81 to which the link mechanism 82 is rotatably connected is swung rearward, and the tip of the second action portion 81 c is divided The sectioned opening 14a is closed by abutting on the front surface of the opening upper edge of the opening 14a. In this case, the first action part 81b is in contact with the partition plate 14 to open the second right back side flow path 33, and the second action part 81c opens the third right back side flow path 34. become.

  In the showcase having the above configuration, when the intermediate duct 90 is not attached, the storage area 2 is cooled as follows to cool the goods placed on the goods placement shelf 4 it can.

  When the intermediate duct 90 is not attached, the back opening 3a is closed by each back flapper 10, and the section opening 14a is opened. Further, the downstream side of the section opening 14a in the second right back side flow passage 33 is closed by the first action portion 81b of the duct flapper 81, and the upstream side of the section opening 14a in the third right back side flow passage 34 is the duct flapper 81 It is closed by the second action portion 81c.

  When the right circulation fan 30b and the compressor are driven while stopping the left circulation fan 40b in such a state, the air sucked through the suction port 9a passes through the introduction flow path 21 and then the right air It reaches the flow path 30a. In the right air flow passage 30 a, the air passes upward through the first right back side flow passage 31 and then enters the right upper flow passage 32 and is cooled by the evaporator 35. The air cooled by the evaporator 35 extends from the right upper flow passage 32 to the second right back flow passage 33, and is open in the middle of passing the second right back flow passage 33 downward. It passes through the divided section opening 14a to reach the third right back flow channel 34, and passes the third right back flow channel 34 upward. The air that has passed through the third right back surface channel 34 reaches the outlet channel 22 through the right outlet 34a, and is then blown out from the outlet 9b into the storage area 2 and into the inlet 9a in the storage area 2. By flowing toward the air curtain, an air curtain can be formed, the internal atmosphere of the storage area 2 can be cooled, and the commodity placed on the commodity placing rack 4 can be cooled. That is, the product in the storage area 2 can be held in one temperature state.

  By the way, since the flow straightening mechanism 50 is provided in the lead-out flow path 22, the air sent out from the right side lead-out port 34 a disposed at the position biased to the right is the right side constituting the second air guide plate 52. A part of the air guide plate 52 a circulates toward the central region of the first air guide plate 51 while a part thereof passes through the passage hole 54. In the first air guide plate 51, the air guide holes 53 are formed in a sparse manner in the central region and in a dense manner at both left and right ends, so air passing toward the central region of the first air guide plate 51, Also, the air having passed through the passage hole 54 passes through the air guide hole 53, passes through so as to be substantially uniform left and right, and is blown out uniformly from the blowout port 9b.

  Next, the case where the intermediate duct 90 is mounted will be described. When the intermediate duct 90 is attached, the sheet metal member 70 attached to the under-shelf duct 60 pivoted by the intermediate duct 90 inserted into the insertion opening 67 has the mohair 74 directly above the intermediate duct 90. The heat insulating material 75 abuts on the upper regulation piece 65 while being in contact with the shelf mohair 8a attached to the lower surface of the shelf plate 8 so that the sealed space S is interposed between the intermediate duct 90 and the product placement shelf 4 Form.

  In addition, the link mechanism 82 in contact with the back flapper 10 which is pressed by the intermediate duct 90 and pivots rearward and moved upward is closed by the duct flapper 81 and the third right The rear side flow passage 34 is blocked by the intermediate duct 90 and divided up and down.

  When the left circulation fan 40b, the right circulation fan 30b, and the compressor are driven in such a state, the air sucked through the suction port 9a partially passes through the introduction flow path 21 and then the right air flow path The rest reaches the left air flow passage 40a while reaching 30a.

  In the right air flow passage 30 a, the air passes upward through the first right back side flow passage 31 and then enters the right upper flow passage 32 and is cooled by the evaporator 35. After the air cooled by the evaporator 35 reaches the second right back side flow path 33 from the right upper side flow path 32 and passes downward through the second right back side flow path 33, the third It reaches the right back side flow passage 34. Part of the air passing through the third right back side flow passage 34 is blown out to the storage area 2 from the vent holes 11 b of the back flapper 10 and is guided by the under shelf duct 60 to the vicinity of the lower surface of the product placement shelf 4 Do. The remaining air reaches the duct portion 91 from the rear end opening 91a of the intermediate duct 90, is blown out from the intermediate outlet 91b, and flows toward the suction port 9a in the storage area 2 to form an air curtain, The internal atmosphere of the lower area of the intermediate duct 90 in the storage area 2 can be cooled, and the commodity placed on the commodity placement rack 4 below the intermediate duct 90 can be cooled.

  In the left air flow passage 40a, after the air passes upward the left back side flow passage 41, it reaches the discharge flow passage 22 through the left outlet 41b, and then into the storage area 2 from the outlet 9b. An air curtain can be formed by blowing out and flowing toward the suction port 9 a in the storage area 2, and the internal atmosphere of the upper area of the intermediate duct 90 in the storage area 2 can be set to a desired temperature. That is, the goods in the storage area 2 can be held at two different temperature states.

  By the way, since the flow straightening mechanism 50 is provided in the lead-out flow path 22, the air sent out from the left side lead-out port 41 b disposed at the position shifted to the left side is the left that constitutes the second air guide plate 52. A part of the air guide plate 52 b circulates toward the central region of the first air guide plate 51 while a part thereof passes through the passage hole 54. In the first air guide plate 51, the air guide holes 53 are formed in a sparse manner in the central region and in a dense manner at both left and right ends, so air passing toward the central region of the first air guide plate 51, In addition, the air having passed through the passage hole 54 passes through the air guide hole 53, passes through so that the left and right are substantially uniform, and is blown out from the outlet 9b uniformly in the left and right.

  As described above, according to the showcase of the embodiment of the present invention, when the intermediate duct 90 is attached, the flow path switching means 80 of the rear flapper 10 below the intermediate duct 90 is provided. While the air cooled by the evaporator 35 is blown out of the vent hole 11b to the storage area 2, when the intermediate duct 90 is not attached, the air cooled by the evaporator 35 is blown out of the vent hole 11b. Since the flow path of the air is switched so as to blow out from the blowout port 9b while restricting, the goods in the storage area 2 can be favorably held not only in one temperature state but in different temperature states.

  According to the above-mentioned showcase, when the intermediate duct 90 is mounted, the air cooled by the evaporator 35 by the first air circulation means 30 is returned to the intermediate outlet 91b of the intermediate duct 90 and the back surface below the intermediate duct 90. The air circulated by the second air circulating means 40 is blown out from the blowout port 9b while cooling the goods in the lower region of the intermediate duct 90 by blowing out from the vent holes 11b of the flapper 10 into the storage area 2; Since the articles in the upper area of can be maintained at a predetermined temperature, the articles in the storage area 2 can be well maintained in different temperature states.

  According to the above-mentioned showcase, when the intermediate duct 90 is mounted, the sheet metal member 70 attached to the under-shelf duct 60 pivoted by the intermediate duct 90 is the intermediate duct 90 and the commodity placing shelf immediately above it Since the closed space S is formed between them, a part of the air passing through the third right back side flow passage 34 enters the gap between the intermediate duct 90 and the product placement rack 4 due to a dimensional error or the like. It is possible to suppress the occurrence of condensation on the upper surface of the intermediate duct 90.

  According to the showcase, since the evaporator 35 is provided on the top surface portion 1C, the capacity of the storage area 2 can be sufficiently secured, and the display space for goods can be sufficiently secured.

  Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these, and various modifications can be made.

  In the embodiment described above, as the flow path switching means 80, the duct flapper 81 for opening and closing the section opening 14a, and the duct flapper 81 rotatably connected to the third right back side flow path 34 In the present invention, when the intermediate duct is mounted, the air adjusted by the temperature control means through the air hole of the back flapper below the intermediate duct. Is blown out to the storage area, but when the intermediate duct is not attached, the air flow path is switched so that the air adjusted by the temperature control means is blown out from the air vent while being blown out from the air vent The component is not particularly limited as long as it can.

  In the embodiment described above, the sheet metal member 70 is attached to the under-shelf duct 60, but in the present invention, the sheet metal member may be attached to other than the under-shelf duct.

DESCRIPTION OF SYMBOLS 1 Case body 2 Storage area 3 Back plate 3a Back opening 4 Product placement shelf 9a Suction port 9b Air outlet 10 Back flapper 11b Air vent 20 Air circulation unit 21 Introduction flow path 22 Extraction flow path 30 1st air circulation means 30a Right direction Air flow path 30b Right circulation fan 35 Evaporator 40 Second air circulation means 40a Left air flow path 40b Left circulation fan 50 Rectification mechanism 51 1st wind guide plate 52 2nd wind guide plate 53 air guide hole 54 passage hole 60 under-shelf duct 70 sheet metal member 71 mounting portion 72 upper extending portion 73 front extending portion 80 flow path switching means 81 duct flapper 82 link mechanism 90 intermediate duct S enclosed space

Claims (4)

A storage area formed in the case body for storing products,
There is a first air flow path provided inside the case main body in such a manner as to communicate with the storage area through a suction port formed in the lower front of the storage area and an outlet formed in the upper front of the storage area First air circulating means for circulating air between the first air flow passage and the storage area;
Temperature control means for adjusting the air circulated by the first air circulation means to a predetermined temperature; and a showcase for holding the product at a desired temperature state,
An intermediate duct that is installed in a manner to penetrate the back plate that constitutes the back surface of the storage area, thereby blocking the first air flow path and dividing the storage area up and down to have different temperatures;
It has a second air flow path provided inside the case main body so as to be separated from the first air flow path in a manner to communicate with the storage area through the suction port and the blowout port, and the second air flow path And a second air circulation means for circulating air between the storage area and the storage area. The first air flow passage and the second air flow passage are arranged side by side on the left and right, respectively,
A discharge passage connecting the first outlet, which is the outlet of the first air flow passage, and the air outlet, and a discharge passage, which is the outlet of the second air flow passage, and the air outlet. ,
2. The showcase according to claim 1, further comprising: a rectifying mechanism provided in the outlet flow path and rectifying the passing air so that the left and right will be uniform. The rectification mechanism
A first air guide plate provided in a mode extending along the left-right direction, and in which the air guide holes are formed in a mode in which the central region is sparse and the left and right end portions are dense;
A pair of left and right second wind guide plates installed on the upstream side of the first wind guide plate in such a manner as to extend in the central region of the first wind guide plate as it goes downstream. The showcase according to claim 2, characterized in that   The showcase according to claim 3, wherein the second air guide plate is formed with a plurality of passage holes along the extending direction.

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