JP6476108B2 - Showcase - Google Patents

Description

  The present invention relates to a multistage showcase having a temperature / cool display part that can be switched between warm storage and cold storage. In the present invention, warm storage includes storage in a heated state using a heater or the like and storage at normal temperature (room temperature of a store or the like where a showcase is installed).

  This type of showcase is known, for example, from Patent Document 1. There, there are provided three upper and lower display parts that can be switched between refrigeration and refrigeration in a storage room whose front is open. The display part in the warm state is heated by a heater, and the display part in the cold state is cooled by a cold air curtain formed on the front surface thereof. Specifically, a lower shelf duct having an opening at the front end is formed on the lower surface of the upper and middle display portions, and the rear end of each shelf lower duct is connected via a cold air outlet that is opened and closed by a damper. It communicates with the cold air duct behind the back plate. When the upper and middle cool air outlets are closed with dampers, the cool air can be guided to the cool air outlet at the upper end of the storage chamber, and a cold air curtain can be formed on the front surface of all the display parts. When the upper-stage cool air outlet is opened, the cool air can be guided to the upper-stage shelf lower duct, and a cold air curtain can be formed in front of the middle display section and the lower display section. When the middle-stage side cold air outlet is opened, the cold air can be guided to the middle-stage shelf lower duct, and a cold air curtain can be formed on the front surface of the lower-stage display section.

  In the present invention, a wind direction plate is arranged at the front end portion of the shelf plate of the display unit, the cold air flowing forward along the lower surface of the shelf plate is turned downward, and a cold air curtain is formed below the shelf plate. However, Patent Document 2 is known regarding this type of wind direction plate. There, a wind direction plate is pivotally attached to the lower part of the front surface of the shelf plate so that the wind direction plate can be flipped upward. When the wind direction plate is flipped upward, the product displayed on the shelf board is prevented from colliding with the wind direction plate when the shelf plate directly below the shelf plate on which the wind direction plate is attached is pulled forward. , Can pull out the shelf smoothly. Moreover, as shown in the drawing of Patent Document 2, a display body indicating the temperature state of the display unit is attached to the front end of each display unit of the showcase.

Japanese Unexamined Patent Publication No. 2004-12021 (paragraph numbers 0013 to 0016, FIGS. 4 to 7) JP 2004-337229 A (paragraph numbers 0015 to 0018, FIGS. 2 and 3)

  In the showcase of patent document 1, since the cool air curtain is formed using the shelf lower duct provided in the lower surface of the display part, there exists a disadvantage that the capacity | capacitance of a storage chamber falls by the part which provides this duct. On the other hand, in the showcase of Patent Document 2, cold air blown forward along the lower surface of the shelf plate is turned downward by the wind direction plate to form an air curtain, so that the lower shelf duct can be omitted and the storage room is accordingly Capacity can be increased. In addition, when an air curtain is formed on the front surface of all the display parts, when the wind direction plate is not required, the wind direction plate prevents the shelf plate from being pulled out by flipping the wind direction plate upward. Can be eliminated.

  However, in the showcase of Patent Document 2, a wind direction plate is pivotally attached to the front end portion of the shelf plate, and a display body indicating the temperature state of the display portion is attached to the front end portion of the shelf plate. There is a disadvantage that the structure becomes complicated. In addition, when switching between refrigeration and refrigeration of the display unit, it is necessary to change the position of the wind direction plate and further change the display content of the display body, which is disadvantageous in that this series of operations is troublesome.

  An object of the present invention is to simplify the structure of the front end portion of a shelf board in a multi-stage showcase having a hot / cold display section that can be switched between hot storage and cold storage, and is accompanied by switching of the temperature state of the display section. It is to reduce the labor of work.

  In the showcase according to the present invention, a warm / cold display section 16 that can be switched between cold storage and cold storage is provided in the storage chamber 3 whose front surface is open. A duct 4 is formed from the suction port 5 provided at the lower front end of the storage chamber 3 to the air outlet 6 provided at the upper front end of the storage chamber 3. A cold air window 38 that is opened and closed by a damper 37 is formed on the back plate 2 a that separates the storage chamber 3 and the duct 4 from front to back. An air curtain made of cold air blown out from the air outlet 6 or the cold air window 38 is formed on the front surface of the hot and cold display unit 16 in the refrigerated state. A hot / cold display board 21 that displays the temperature state of the display unit 16 is detachably attached to the front end of the shelf 18 of the hot / cold display unit 16. The hot / cold display board 21 is formed in the shape of a horizontally long strip, and a hot display 25 and a cold display 26 are provided on the front and back of the hot / cold display board 21. A wind direction plate 27 is provided continuously to one of the long side portions 21 a of the temperature / cooling display plate 21. In a state where the warm storage display 25 of the hot / cold display board 21 faces the front, the wind direction board 27 protrudes from the lower surface of the shelf board 18 to guide the cold air blown forward from the cold air window 38 in a downward direction. Features. In the state where the refrigeration display 26 of the temperature / cooling display plate 21 faces the front, the wind direction plate 27 may or may not protrude from the lower surface of the shelf plate 18.

  More preferably, the refrigeration display 25 and the refrigeration display 26 of the heat / cool display board 21 are displayed upside down. In a state in which the warm display 25 is directed to the front, the wind direction plate 27 is located below the warm / cool display plate 21 and protrudes from the lower surface of the shelf board 18. In the state where the refrigeration display 26 is directed to the front surface, the wind direction plate 27 is positioned above the warm / cool display plate 21.

  The hot / cold display board 21 is inserted from above into a mounting groove 33 provided at the front end of the shelf board 18 and supported by the groove bottom of the mounting groove 33. A slit 34 that allows the wind direction plate 27 to be inserted is formed in the groove bottom of the mounting groove 33. In a state where the warm storage display 25 of the temperature / cooling display plate 21 faces the front, the wind direction plate 27 protrudes downward from the slit 34, and the one long side portion 21 a of the temperature / cooling display plate 21 is a groove of the mounting groove 33. Received at the bottom. In the state where the refrigeration display 26 of the temperature / cooling display plate 21 faces the front, the other long side portion 21 b of the temperature / cooling display plate 21 is received by the groove bottom of the mounting groove 33.

  The left and right lengths of the hot and cold display board 21 are set to be larger than the left and right lengths of the wind direction board 27, and left and right protrusions 28 are formed at the left and right ends of the hot and cold display board 21. In a state where the temperature / cooling display plate 21 is inserted into the mounting groove 33, the left and right protrusions 28 are received by the groove bottom of the mounting groove 33.

  The front surface of the mounting groove 33 is partitioned by a front wall 32 made of a transparent material.

  The wind direction plate 27 is formed longer in the left-right direction than the cool air window 38 so that the wind direction plate 27 overlaps the entire length of the cool air window 38 in the left-right direction.

  In the showcase according to the present invention, a hot / cold display board 21 is detachably attached to the front end portion of the shelf board 18 of the hot / cold display part 16, and the wind direction continues to one long side part 21 a of the hot / cold display board 21. A plate 27 was provided. The wind direction plate 27 protrudes from the lower surface of the shelf plate 18 in a state in which the temperature display 25 of the temperature / cooling display plate 21 faces the front, and guides the cold air blown forward from the cool air window 38 to be directed downward. Accordingly, it is possible to prevent the cold air from leaking outward from the front opening of the storage chamber 3 and to assist the formation of the cold air curtain below the shelf board 18. If the wind direction plate 27 is provided continuously to the long side portion 21a of the temperature / cooling display plate 21 as in the present invention, both the plates 21 and 27 can be supported by a single support structure. Compared to the case, the structure of the front end portion of the shelf board 18 can be simplified and the cost can be reduced.

  The refrigeration display 25 and the refrigeration display 26 of the hot / cold display board 21 are displayed upside down, and the wind direction board 27 is positioned below the hot / cold display board 21 in a state where the hot storage display 25 faces the front. In the state where 26 is directed to the front surface, the wind direction plate 27 can be positioned above the heating / cooling display plate 21. That is, when using the heating / cooling display unit 16 for heating, the wind direction plate 27 is positioned below the heating / cooling display plate 21 with the heating display 25 facing the front, and the wind direction plate 27 is placed on the shelf 18. Protrude on the bottom surface to exert its function. On the other hand, when the hot / cold display unit 16 is used for refrigeration, the wind direction plate 27 is positioned above the hot / cold display plate 21 with the refrigeration display 26 facing the front. In this state, the wind direction plate 27 does not perform its function. At this time, the cold air is blown out from the cold air window 38 or the outlet 6 above the hot and cold display unit 16 for refrigeration. The wind direction plate 27 does not need to exhibit its function. Rather, since the wind direction plate 27 does not protrude from the lower surface of the shelf plate 18, when the shelf plate 18 immediately below the shelf plate 18 is pulled forward, the product on the shelf plate 18 that is pulled out does not hit the wind direction plate 27. Has an effect.

  The hot / cold display board 21 is inserted from above into a mounting groove 33 provided at the front end of the shelf board 18 and supported by the groove bottom of the mounting groove 33. In a state in which the warm storage display 25 is directed to the front, the wind direction plate 27 protrudes downward from the slit 34 at the bottom of the mounting groove 33, and one long side portion 21 a of the thermal cooling display plate 21 is the groove of the mounting groove 33. Received at the bottom. In the state where the refrigeration display 26 is directed to the front surface, the other long side portion 21 b of the thermal cooling display plate 21 is received by the groove bottom of the mounting groove 33. According to the above configuration, the front side of the temperature / cooling display plate 21 can be obtained by simply pulling the temperature / cooling display plate 21 upward from the mounting groove 33, inverting the front / rear and top / bottom thereof, and reinserting it into the mounting groove 33. And the presence or absence of protrusion from the slit 34 of the wind direction plate 27 can be changed simultaneously. Therefore, it is possible to reduce the labor involved in switching the temperature state of the heating / cooling display section 16 as compared with the conventional showcase in which the display contents of the heating / cooling display board and the position of the wind direction board need to be individually performed.

  If the left and right lengths of the temperature / cooling display plate 21 are set larger than the left / right lengths of the wind direction plate 27 and the protrusions 28 that are received by the groove bottoms of the mounting grooves 33 are provided at the left and right ends of the temperature / cooling display plate 21, the same purpose is obtained. Compared with the case where the protrusions are provided on the front and rear surfaces of the temperature / cooling display plate 21, the appearance of the warm display 25 and the cold display 26 provided on the front and rear surfaces can be improved. It is also advantageous in that it is not bulky when a plurality of hot and cold display boards 21 are stacked one after the other.

  When the front wall 32 that partitions the front surface of the mounting groove 33 is provided, the front surface of the thermal / cooling display plate 21 is supported by the front wall 32, and the thermal / cooling display plate 21 can be reliably prevented from falling off the mounting groove 33. Since the front wall 32 is made of a transparent material, the refrigeration display 25 and the refrigeration display 26 of the heat / cool display panel 21 are not shielded by the front wall 32.

  If the wind direction plate 27 is formed longer in the left-right direction than the cool air window 38 and the wind direction plate 27 overlaps the entire length of the cool air window 38 in the left-right direction, not only the cool air blown out from the left and right central portions of the cool air window 38, Cold air blown out from the left and right ends of the cold air window 38 can also be received by the wind direction plate 27 and turned downward. Therefore, the cold air blown out from the cold air window 38 is further suppressed from leaking out of the storage chamber 3, and the refrigerated hot / cold display part 16 can be effectively cooled.

It is a vertical side view of the principal part which shows one use condition of the showcase which concerns on 1st Example of this invention. It is a vertical side view which shows the whole showcase which concerns on 1st Example. It is a front view of the principal part of the showcase which concerns on 1st Example. It is a perspective view of the temperature-cooling display board which concerns on 1st Example. It is a vertical side view of the front-end part of the heating / cooling display part which concerns on 1st Example. It is a vertical side view of the cold air duct and its peripheral structure according to the first embodiment. It is a perspective view of the damper concerning the 1st example. It is the sectional view on the AA line in FIG. It is the BB sectional view taken on the line in FIG. It is a vertical side view of the principal part which shows another use condition of the showcase which concerns on 1st Example. It is a perspective view of the principal part of the temperature-cooling display board which concerns on 2nd Example of this invention. It is a figure which shows the state equipped with the temperature-cooling display board which concerns on 2nd Example. It is a perspective view of the principal part of the temperature-cooling display board which concerns on 3rd Example of this invention. It is a figure which shows the state equipped with the temperature-cooling display board which concerns on 3rd Example. It is a perspective view of the principal part of the temperature-cooling display board and support frame which concern on 4th Example of this invention. It is a figure which shows the state equipped with the temperature-cooling display board which concerns on 4th Example. It is a vertical side view which shows the whole showcase which concerns on another Example of this invention.

First Embodiment FIGS. 1 to 10 show a first embodiment of a showcase according to the present invention. In the present embodiment, front and rear, left and right, and up and down follow the cross arrows shown in FIG. 2 and FIG. In FIG. 2, the showcase includes a main body case 1 formed of a heat insulating wall and an inner panel 2 disposed inside the main body case 1, and a storage chamber 3 is partitioned by the inner panel 2. A duct 4 is defined between the main body case 1 and the main body case 1. The inner panel 2 is formed of a back plate 2a, a top plate, and a bottom plate in a substantially U shape in a side view. The duct 4 is formed from the suction port 5 provided at the lower front end of the storage chamber 3 to the air outlet 6 provided at the upper front end of the storage chamber 3.

  An evaporator 9 and a circulation fan 10 are disposed in the duct 4. Specifically, the evaporator 9 is disposed at the lower rear portion of the back plate 2 a of the inner panel 2, and the circulation fan 10 is disposed below the bottom plate of the inner panel 2. When the circulation fan 10 is driven, an air flow is formed in the duct 4 from the inlet 5 toward the outlet 6. A machine room 12 that houses the refrigeration unit 11 is formed on the lower surface side of the bottom wall of the main body case 1. The refrigeration unit 11 includes a compressor and a condenser that constitute a refrigeration cycle together with the evaporator 9, and a cooling fan for cooling the condenser.

  The storage chamber 3 having an opening on the front surface is provided with a four-stage hot / cold display section 16 that can be switched between cold storage and cold storage. In the showcase according to the present embodiment, the first use state in which all the stages are used for refrigeration, the upper one stage (first display part 16A) is for warm storage, and the lower three stages (second display part 16B to second display part). 4 display sections 16D) are used for refrigeration, and the upper two stages (first display section 16A, second display section 16B) are used for warm storage, and the lower two stages (third display section 16C, second display section). 4 display part 16D) can be changed into the 3rd use state which uses it for refrigeration, and the 4th use state which uses all the stages for storage. 2 and 3, each of the hot and cold display units 16 is built in the shelf board 18 on which products are displayed, a pair of left and right shelf brackets 19 that support the shelf board 18 so that the shelf board 18 can be pulled out forward, and the shelf board 18. The heater 20 is energized during warming, and a warm / cool display panel 21 that displays the temperature state of the display unit 16. The hot / cold display board 21 is detachably attached to the front end portion of the shelf board 18.

  3 and 4, the temperature / cooling display plate 21 is formed in the shape of a horizontally long strip, and a warming display 25 and a cold storage display 26 are provided on the front and back. By attaching one of these indications 25 and 26 to the front end portion of the shelf board 18 with the front facing, the products displayed on the shelf board 18 are in a warm (HOT) state or a refrigerated (COLD) state. Can be displayed. In this embodiment, the wind direction plate 27 is provided integrally with the one long side portion 21 a of the temperature / cooling display plate 21. The refrigeration display 25 and the refrigeration display 26 are displayed upside down. When the refrigeration display 25 is faced to the front, the wind direction plate 27 is positioned below the warm / cool display plate 21, and the refrigeration display 26 is on the front. In the state of being directed, the wind direction plate 27 is positioned above the temperature / cooling display plate 21. The left / right length of the hot / cold display board 21 is set to be greater than the left / right length of the wind direction board 27, and left and right protrusions 28 are formed at the left and right ends of the hot / cool display board 21. The hot / cold display plate 21 and the wind direction plate 27 have the same front and rear thickness dimensions, and the front and rear surfaces of both 21 and 27 are formed to be flush with each other.

  3 and FIG. 5, the shelf board 18 includes a shelf board main body 29 made of a hollow horizontal plate with a built-in heater 20, and a support frame 30 fixed to the front end portion of the shelf board main body 29. The support frame 30 is composed of a frame having an L-shaped cross section integrally provided with a lower wall 31 and a front wall 32, and the rear half of the lower wall 31 is fixed to the lower surface of the shelf body 29, and the front wall A mounting groove 33 for the heating / cooling display plate 21 is formed between the front surface of the shelf board body 29 and the shelf board 32. The hot / cold display board 21 is inserted into the mounting groove 33 from above and supported by the front end portion of the lower wall 31 constituting the groove bottom of the mounting groove 33. A slit 34 is formed at the front end of the lower wall 31 to allow the wind direction plate 27 to pass through. The left and right dimensions of the slit 34 are set to be slightly larger than the left and right dimensions of the wind direction plate 27 and smaller than the left and right dimensions of the heating / cooling display plate 21. The support frame 30 is formed of a transparent material that enables the display 25 and 26 of the temperature / cooling display plate 21 to be seen through.

  When the warm / cold display plate 21 with the warm storage display 25 facing the front is inserted into the mounting groove 33, the wind direction plate 27 protrudes from the slit 34 to the lower surface of the shelf plate 18 as shown in FIGS. The protrusions 28 on the left and right sides of the temperature / cooling display plate 21 are received by the left and right lower walls 31 of the slit 34 on the side of one long side 21 a of the temperature / cooling display plate 21. On the other hand, when the warm / cold display plate 21 with the refrigeration display 26 facing the front is inserted into the mounting groove 33, as shown in FIG. 3 and FIG. On the side of the other long side portion 21 b of the temperature / cooling display plate 21, it is received by the left and right lower walls 31 of the slit 34. At this time, the wind direction plate 27 is positioned above the temperature / cooling display plate 21. The operation of the wind direction plate 27 will be described later.

  3 and 6, the back plate 2 a is formed with two upper and lower cold air windows 38 that are opened and closed by a damper 37. Each cold air window 38 is formed in a horizontally long rectangular shape, and its left and right dimensions are set smaller than the left and right dimensions of the wind direction plate 27. Therefore, the wind direction plate 27 overlaps the entire length of the cool air window 38 in the left-right direction. The upper cold air window 38 is disposed between the left and right shelf brackets 19 of the first display portion 16A and faces the lower surface of the shelf board 18 of the display portion 16A. The lower cool air window 38 is disposed between the left and right shelf brackets 19 of the second display portion 16B and faces the lower surface of the shelf board 18 of the display portion 16B. The back plate 2a is formed with a group of elongated holes. The blowout holes are arranged mainly near the left and right ends of the back plate 2a to eliminate the temperature unevenness of the hot and cold display unit 16 during refrigeration.

  In FIG. 6, the damper 37 has a standing posture (see the lower damper 37) that closes the cool air window 38 and opens the duct 4, and a tilted posture that opens the cool air window 38 and closes the duct 4 (upper damper 37). The position can be changed in between. 6 and 7, the damper 37 includes a horizontally long obstruction plate 41 that obstructs the cool air window 38 or the duct 4, an operation piece 42 for changing the posture of the damper 37, and a large number of ventilation openings 44 in the left-right direction. And a pair of left and right bearing pieces 45 supported by a support shaft 54, which will be described later, a magnet 46 provided at the rear end of the lower surface of the closing plate 41, and the like.

  The closing plate 41 is disposed on the rear surface side of the back plate 2 a and tilts back and forth in the duct 4. As shown in the lower side of FIG. 6, the closing plate 41 in the standing posture contacts the rear surface of the back plate 2a in a posture parallel to the back plate 2a, and closes the cool air window 38 from the rear. As shown in the upper side of FIG. 6, the closing plate 41 in the tilted posture is supported by a support piece 50 protruding from the rear surface of the duct 4 to close the duct 4. At this time, when the magnet 46 on the lower surface of the closing plate 41 is magnetically attracted to the support piece 50, rattling of the damper 37 in the tilted posture is restricted.

  The operation piece 42 is continuously formed at the lower end of the closing plate 41 and projects forward through the cold air window 38, that is, into the storage chamber 3. The ventilation plate 43 extends from the lower end of the closing plate 41 in a direction almost opposite to the operation piece 42, and is located in the duct 4 in the standing posture of the damper 37 and is located in the cold air window 38 in the tilting posture. The left and right dimensions of the ventilation plate 43 are set to be smaller than the left and right dimensions of the cool air window 38, and ventilation gaps 51 are formed on both the left and right sides of the ventilation plate 43 (see FIG. 8). Therefore, when the damper 37 is tilted, the cool air that is raised by the duct 4 and blocked by the closing plate 41 is blown out from the ventilation openings 44 of the ventilation plate 43 and the ventilation gaps 51 on the left and right sides to the storage chamber 3.

  The bearing piece 45 is formed to be bent rearward from the lower part of the left and right edges of the closing plate 41. Each bearing piece 45 is formed with a long-hole-shaped bearing hole 53 that is long in the vertical direction in the standing posture. Support shafts 54 are inserted into the respective bearing holes 53, and the damper 37 is supported by the pair of left and right support shafts 54 so that the posture can be changed between the standing posture and the tilting posture. In FIG. 9, the support shaft 54 is made of a screw provided with a head portion 56 having a larger diameter and a screw portion 57 having a smaller diameter than the shaft portion 55 on the left and right of the shaft portion 55 disposed in the bearing hole 53. On the left and right sides of the cool air window 38 on the rear surface side of the back plate 2a, vertical plates 58 orthogonal to the back plate 2a are provided. The damper 37 is attached to the vertical plate 58 by inserting the support shaft 54 into the bearing holes 53 of the left and right bearing pieces 45 and screwing the screw portions 57 into the vertical plate 58.

  When a finger is hooked and pushed up on the operation piece 42 of the damper 37 in the standing posture shown in the lower side of FIG. 6, the damper 37 is slid and guided upward by the bearing hole 53 and the support shaft 54, and the support shaft 54 is at the lower end of the bearing hole 53. When reaching, the damper 37 swings backward around the support shaft 54, so that the closing plate 41 is supported by the support piece 50. When a finger is hooked and pushed down on the operation piece 42 of the damper 37 in the inclined posture shown in the upper side of FIG. 6, the damper 37 swings forward around the support shaft 54, and the closing plate 41 contacts the back plate 2a. Next, the damper 37 is slid and guided downward by the bearing hole 53 and the support shaft 54, and the support shaft 54 reaches the upper end of the bearing hole 53 and takes a standing posture.

Next, each use state of the showcase according to the present embodiment will be described.
(First use state) In the first use state in which all the display parts 16A to 16D are used for refrigeration, as shown in FIG. The upper and lower cool air windows 38 are closed by dampers 37 and the duct 4 is communicated over the entire length in the vertical direction. When the refrigeration cycle and the circulation fan 10 are driven, the cold air cooled by the evaporator 9 is blown downward from the blowout port 6 to the suction port 5, and the cold air is blown to the front of all the display units 16 </ b> A to 16 </ b> D in the storage chamber 3. A curtain is formed. In the first use state, since the wind direction plates 27 of all the display parts 16A to 16D are located above the temperature / cooling display board 21, a relatively tall product (for example, on the shelf board 18 of each display part 16A to 16D) Even if the 500 mL refrigerated plastic bottle beverage) is displayed, the product does not hit the wind direction plate 27 when the shelf board 18 is pulled forward.

(Second Use State) In the second use state where the first display portion 16A is used for warming and the second display portion 16B to the fourth display portion 16D are used for refrigeration, the heater 20 of the first display portion 16A is energized. The display unit 16A is heated. Further, as shown in FIGS. 1 and 3, the warm / cool display board 21 of the first display portion 16A is mounted with the warm storage display 25 facing the front, and the warm / cool of the second display portion 16B to the fourth display portion 16D. The display board 21 is mounted with the refrigeration display 26 facing the front. Further, the cool air window 38 is closed by the lower damper 37 to open the duct 4, and the cool air window 38 is opened by the upper damper 37 to close the duct 4. When the refrigeration cycle and the circulation fan 10 are driven, the cool air that is cooled by the evaporator 9 and rises in the duct 4 is blocked by the closing plate 41 of the upper damper 37 and is located in the upper cool air window 38. Are blown forward through the ventilation openings 44 and the ventilation gaps 51 on the left and right sides. The cold air flows along the lower surface of the shelf 18 of the first display portion 16 </ b> A, is turned downward by the wind direction plate 27 at the front end portion thereof, and is sucked from the suction port 5. That is, a cold air curtain is formed in front of the second display portion 16B to the fourth display portion 16D.

  Table 1 summarizes the temperature measurement values of each part in the second use state and the temperature measurement values when the wind direction plate 27 is not provided as a comparison target. This measurement was performed in an environment of a room temperature of 27 ° C. and a humidity of 70%. In Table 1, the temperatures of the cool air window 38 and the suction port 5 are measured from the temperature of the cool air passing through them, and the temperatures of the display parts 16B to 16D are displayed in the display parts 16B to 16D. The temperature of several goods is measured and the average temperature is calculated | required. In Table 1, the temperature of each part is lower when the wind direction plate 27 is present than when the wind direction plate 27 is not present. From this measurement result, the wind direction plate 27 prevents the cold air from leaking and forms an air curtain. It can be seen that there is an effect of assisting and lowering the temperatures of the display parts 16B to 16D.

  In the second use state, since the wind direction plate 27 of the first display portion 16A protrudes downward above the second display portion 16B for refrigeration, the shelf 18 of the second display portion 16B has a relatively low back. The shelf plate 18 can be pulled out more smoothly when a low product (for example, 350 mL of refrigerated plastic bottle drink) is displayed. On the other hand, since the wind direction plate 27 does not protrude above the third display portion 16C and the fourth display portion 16D for refrigeration, relatively tall products are displayed on the shelf plates 18 of both the display portions 16C and 16D. Even so, the shelf 18 can be pulled out without hindrance.

(Third use state) In the third use state where the first display portion 16A and the second display portion 16B are used for warming, and the third display portion 16C and the fourth display portion 16D are used for refrigeration, the first display portion 16A. The heater 20 of the second display part 16B is energized to heat both the display parts 16A and 16B. Further, as shown in FIG. 10, the warm / cold display plates 21 of the first display portion 16A and the second display portion 16B are mounted with the warm display 25 facing the front, and the third display portion 16C and the fourth display portion 16D. The warm / cold display board 21 is mounted with the refrigeration display 26 facing the front. Further, the cooler window 38 is opened by the lower damper 37 to close the duct 4. Although the posture of the upper damper 37 is arbitrary, the cold air window 38 is closed here. When the refrigeration cycle and the circulation fan 10 are driven, the cool air that is cooled by the evaporator 9 and rises up the duct 4 is blocked by the closing plate 41 of the lower damper 37 and is ventilated in the lower cool air window 38. The air is blown forward from the ventilation openings 44 of the plate 43 and the ventilation gaps 51 on the left and right sides. The cold air flows along the lower surface of the shelf 18 of the second display portion 16B, is turned downward by the wind direction plate 27 at the front end portion thereof, and is sucked from the suction port 5. That is, a cold air curtain is formed in front of the third display portion 16C and the fourth display portion 16D.

  Table 2 summarizes the temperature measurement values of each part in the third use state and the temperature measurement values when the wind direction plate 27 is not provided as a comparison target. The measurement environment and the measurement method for each temperature are the same as in Table 1 above. Also in Table 2, the temperature of each part is lower when the wind direction plate 27 is present than when the wind direction plate 27 is not present. From this measurement result, the wind direction plate 27 prevents the cold air from leaking and forms an air curtain. It can be seen that there is an effect of assisting and lowering the temperatures of the display parts 16C and 16D.

  In the third use state, the wind direction plate 27 of the first display portion 16A protrudes downward above the second display portion 16B for warm storage, and further the second display portion above the third display portion 16C for refrigeration. Since the wind direction plate 27 of 16B protrudes downward, the shelf plate 18 can be pulled out more smoothly when a relatively short product is displayed on the shelf plate 18 of both display portions 16B and 16C. However, since canned beverages and warmed PET bottle beverages that are mainly subject to warming are generally shorter than 500 mL chilled PET bottle beverages, the second display for warming Even if the wind direction plate 27 protrudes downward above the portion 16B, the wind direction plate 27 hardly prevents the shelf plate 18 from being pulled out. In addition, since the wind direction plate 27 does not protrude above the refrigerated fourth display portion 16D, even if a relatively tall product is displayed on the shelf plate 18 of the display portion 16D, the shelf plate 18 is hindered. It can be pulled out without any problems.

(4th use state) In the 4th use state which uses all the display parts 16A-16D as an object for warming, while energizing the heater 20 of each display part 16A-16D and heating this, each display part 16A-16D The warm / cold display board 21 is mounted with the warm storage display 25 facing the front. The refrigeration cycle and the circulation fan 10 are not driven. The posture of the upper and lower dampers 37 is arbitrary. In this use state, the wind direction plates 27 of the first display unit 16A to the third display unit 16C protrude downward above the second display unit 16B to the fourth display unit 16D, respectively. In general, the product is relatively short, so that the wind direction plate 27 hardly prevents the shelf plate 18 from being pulled out. If necessary in the fourth use state, the circulation fan 10 can be driven to form an air curtain of room temperature air on the front surfaces of the display units 16A to 16D. Alternatively, the circulation fan 10 can be driven and the defrosting heater of the evaporator 9 can be energized to form an air curtain of heated air. When these air curtains are formed, the upper and lower cool air windows 38 are closed by dampers 37, and the duct 4 is communicated over the entire length in the vertical direction so that normal temperature air or heated air is blown out from the outlet 6.

  Next, the operation for changing the use state of the showcase will be described with a specific example. A switch (not shown) provided in the machine room 12 is used when changing only the first display portion 16A to the warm storage state from the first use state in which all the display portions 16A to 16D are used for refrigeration and changing to the second use state. To energize the heater 20 of the display section 16A. Further, the hot / cold display board 21 of the first display portion 16A is removed and turned upside down and up and down, the hot storage display 25 is remounted to the front, and the upper damper 37 is operated to operate the upper cold air window. 38 is opened and the duct 4 is closed (see FIG. 1). Thereby, the blowing position of the cold air from the duct 4 is changed from the blower outlet 6 to the upper cold air window 38, and the formation position of the cold air curtain is changed to the front surface of the second display part 16B to the fourth display part 16D. be able to. When switching the 1st display part 16A from warming use to refrigeration again, operation opposite to the above is performed about the switch of the heater 20, the hot / cold display board 21, and the damper 37. FIG.

  When the first display unit 16A and the second display unit 16B are changed to the third use state by switching the first display unit 16A and the second display unit 16B from the first use state in which all the display units 16A to 16D are used for refrigeration, the machine room 12 is provided. The switch 20 (not shown) is operated to energize the heaters 20 of the display parts 16A and 16B. In addition, the temperature / cooling display plates 21 of both the display portions 16A and 16B are removed and reversed up and down and up and down, and the warm storage display 25 is remounted to the front, and the lower damper 37 is operated to operate the lower side. The cold air window 38 is opened to close the duct 4 (see FIG. 10). Thereby, the blowout position of the cold air from the duct 4 is changed from the outlet 6 to the lower cold air window 38, and the formation position of the cold air curtain is changed to the front surfaces of the third display part 16C and the fourth display part 16D. can do. When switching the first display portion 16A and the second display portion 16B from warm storage to cold storage again, the operation of the switch of the heater 20, the two warm / cool display panels 21, and the damper 37 is reversed. .

  As described above, in this embodiment, the wind direction plate 27 is provided continuously to one long side portion 21 a of the temperature / cooling display plate 21 of the temperature / cooling display portion 16, and both 21 and 27 are provided at the front end portion of the shelf plate 18. Since it is supported by the support frame 30, the structure of the front end portion of the shelf board 18 can be simplified as compared with the case where both the members 21 and 27 are separated. Further, in this embodiment, the temperature / cooling display plate 21 is simply pulled out from the mounting groove 33, reversed in the front / rear direction and up / down, and reinserted into the mounting groove 33. The display contents and the presence or absence of protrusion from the slit 34 of the wind direction plate 27 can be changed simultaneously. Therefore, it is possible to reduce the labor involved in switching the temperature state of the heating / cooling display section 16 as compared with the conventional showcase in which the display contents of the heating / cooling display board and the position of the wind direction board need to be individually performed. In the above-described embodiment, the hot / cold display boards 21 of all the display parts 16A to 16D have the same shape and are integrally provided with the wind direction board 27, but the third display part 16C and the fourth display part 16D The wind direction plate 27 of the temperature / cooling display board 21 may be omitted from the temperature / cooling display board 21 because there is no scene to perform its function.

Second Embodiment FIGS. 11 and 12 show a second embodiment of the present invention in which the structure of the temperature / cooling display panel 21 is changed. In the present embodiment, a pair of left and right columnar stoppers 61 are projected from the front and back of the temperature / cooling display plate 21 along one long side portion 21a. In addition, tongue pieces 62 projecting in the left-right direction are formed on the left and right ends of the other long side portion 21 b of the temperature / cooling display plate 21. As shown in FIG. 12 (a), when the storage display 25 of the temperature / cooling display plate 21 faces the front, the wind direction plate 27 protrudes downward from the slit 34, and the pair of left and right stoppers 61 are disposed before and after the slit 34. It is received by the lower wall 31. As shown in FIG. 12B, when the refrigeration display 26 of the temperature / cooling display plate 21 faces the front, the pair of left and right tongue pieces 62 are received by the left and right lower walls 31 of the slit 34. Since others are the same as those of the first embodiment, the same members are denoted by the same reference numerals and the description thereof is omitted. The same applies to the following embodiments.

Third Embodiment FIGS. 13 and 14 show a third embodiment of the present invention in which the structure of the temperature / cooling display panel 21 is changed. In this embodiment, swing levers 65 that are received by the lower wall 31 are provided on both the left and right sides of the temperature / cooling display board 21. The swing lever 65 is formed in an L shape integrally including a long piece 66 and a short piece 67 which are orthogonal to each other. The long piece 66 has a length dimension substantially the same as the vertical dimension of the temperature / cooling display board 21, and the end opposite to the end continuous with the short piece 67 is the other long side part of the temperature / cooling display board 21. The corners on the 21b side are connected by swing pins 68. When the swing lever 65 is swung around the swing pin 68, the long piece 66 stands up along the short side portion (left and right side portions) of the temperature / cooling display plate 21 (shown by a solid line in FIG. 13), and the long piece 66 The posture of the piece 66 can be changed to a recumbent posture (indicated by an imaginary line in FIG. 13) along the extension line of the other long side portion 21b. On both the left and right sides of one long side portion 21a of the temperature / cooling display plate 21, a notch 69 that allows the short piece 67 of the swing lever 65 to enter in the standing posture is formed. The front and rear dimensions of the short piece 67 are set larger than the front and rear thicknesses of the temperature / cooling display board 21 and the front and rear widths of the slits 34.

  When the warm display 25 of the warm / cold display board 21 is mounted with the front facing, the swing lever 65 is in the standing posture as shown in FIG. Accordingly, the bottom surface of the short piece 67 of the swing lever 65 is received by the lower walls 31 before and after the slit 34 in a state where the wind direction plate 27 protrudes downward from the slit 34. When the refrigeration display 26 of the temperature / cooling display plate 21 is mounted facing the front, the swing lever 65 is in a recumbent posture as shown in FIG. Thereby, the side surface of the short piece 67 of the swing lever 65 is received by the left and right lower walls 31 of the slit 34.

(4th Example) FIG.15 and FIG.16 shows 4th Example of this invention which changed the structure of the heating / cooling display board 21 and the support frame 30. FIG. In the present embodiment, stoppers 73 are fixed to both left and right ends of one long side portion 21 a of the temperature / cooling display plate 21, and front and rear ends thereof protrude from the front and back of the temperature / cooling display plate 21. Further, shutters 74 that open and close the slit 34 from the upper surface side are provided on both the left and right sides of the support frame 30. The shutter 74 is provided so as to be slidable back and forth. The upper surface of the slit 34 is opened at the front end of the moving stroke, and the upper surface of the slit 34 is covered and closed at the rear end.

  When the warm storage display 25 of the warm / cold display plate 21 is mounted with the front facing, the shutter 74 is slid forward to open the slit 34. Accordingly, as shown in FIG. 16A, the stopper 73 is received by the lower walls 31 before and after the slit 34 in a state where the wind direction plate 27 protrudes downward from the slit 34. When the refrigeration display 26 of the temperature / cooling display plate 21 is mounted facing the front, the shutter 34 is slid rearward to close the slit 34. Accordingly, as shown in FIG. 16B, the other long side portion 21 b of the temperature / cooling display plate 21 is received by the upper surfaces of the left and right shutters 74. As a modification of the present embodiment, the refrigeration display 26 can have the same vertical orientation as the refrigeration display 25. In this case, the refrigeration display 26 of the refrigeration display board 21 is directed to the front. The wind direction plate 27 is positioned below the temperature / cooling display plate 21, and the wind direction plate 27 is received by the upper surfaces of the left and right shutters 74.

  FIG. 17 shows another embodiment of the present invention in which a refrigeration display unit 17 dedicated to refrigeration is provided in the storage chamber 3. Specifically, a two-stage hot / cold display unit 16 is provided in the upper part of the storage chamber 3, and a two-stage refrigerated display unit 17 is provided in the lower part of the storage chamber 3. The refrigerated display unit 17 includes a heater 20 in the shelf 18 that is not fixed to the shelf 18 in a state where the thermal display panel 21 does not include the wind direction plate 27 and the refrigeration display 26 faces the front. This is different from the upper / lower two-stage heating / cooling display section 16 in that it is not. The showcase according to another embodiment includes a first use state in which all the stages are used for refrigeration, a second use state in which the upper one stage is used for refrigeration, and the lower three stages are used for refrigeration, and the upper two The stage can be changed to a third use state in which the stage is used for warm storage and the lower two stages are used for refrigeration. As can be seen from this alternative embodiment, the showcase according to the present invention only needs to include the hot / cold display section 16 on at least the upper side in the storage chamber 3.

  In addition to the above embodiments, the entire temperature / cooling display plate 21 can be formed thicker in the front / rear direction than the wind direction plate 27, and the temperature / cooling display plate 21 can be received by the lower walls 31 before and after the slit 34. The structure for detachably supporting the temperature / cooling display board 21 is not limited to the support frame 30, and for example, a structure in which the temperature / cooling display board 21 is directly fixed to the front surface of the shelf board 18 with screws may be used. Further, the heater 20 can be omitted in the heating / cooling display section 16. In this case, the hot / cold display unit 16 can be switched between storage and refrigeration at normal temperature (room temperature of a store or the like where a showcase is installed).

DESCRIPTION OF SYMBOLS 3 Storage chamber 4 Duct 5 Inlet 6 Outlet 16 Warm / cool display part 18 Shelf board 21 Hot / cold display board 25 Warm display 26 Refrigeration display 27 Wind direction board 28 Protrusion part 30 Support frame 31 Lower wall 32 Front wall 33 Mounting groove 34 Slit 37 Damper 38 Cold window

Claims (6)

The storage room (3) whose front is open is provided with a hot and cold display section (16) that can be switched between hot storage and cold storage,
A duct (4) is formed from the inlet (5) provided at the lower front end of the storage chamber (3) to the outlet (6) provided at the upper front end of the storage chamber (3),
A cold air window (38) that is opened and closed by a damper (37) is formed in the back plate (2a) that separates the storage chamber (3) and the duct (4) from front to back.
A showcase in which an air curtain is formed on the front surface of the refrigerated hot and cold display section (16) by cold air blown out from the air outlet (6) or the cold air window (38),
At the front end of the shelf plate (18) of the heating / cooling display portion (16), a heating / cooling display plate (21) for displaying the temperature state of the display portion (16) is detachably attached,
The hot / cold display board (21) is formed in the shape of a horizontally long strip, and a hot and cold display (25) and a cold storage display (26) are provided on the front and back.
A wind direction plate (27) is provided continuously to one of the long side portions (21a) of the temperature / cooling display plate (21),
In a state where the warm storage display (25) of the hot / cold display board (21) faces the front, the wind direction board (27) protrudes from the lower surface of the shelf board (18) and blows forward from the cold air window (38). A showcase that guides the cold air downward. The temperature display (25) and the temperature display (26) of the temperature / cool display panel (21) are displayed upside down,
In the state where the warm storage display (25) is directed to the front, the wind direction plate (27) is located on the lower side of the warm / cool display plate (21) and protrudes from the lower surface of the shelf board (18),
The showcase according to claim 1, wherein the wind direction plate (27) is positioned on the upper side of the hot / cold display plate (21) when the refrigeration display (26) is directed to the front. The temperature / cooling display plate (21) is inserted from above into a mounting groove (33) provided at the front end of the shelf plate (18), and supported by the groove bottom of the mounting groove (33),
A slit (34) that allows insertion of the wind direction plate (27) is formed in the groove bottom of the mounting groove (33),
In a state where the warm storage display (25) of the temperature / cooling display plate (21) is directed to the front, the wind direction plate (27) protrudes downward from the slit (34), and the one of the warm / cool display plates (21). The long side portion (21a) is received by the groove bottom of the mounting groove (33),
In the state where the refrigeration display (26) of the temperature / cooling display plate (21) faces the front, the other long side portion (21b) of the temperature / cooling display plate (21) is received by the groove bottom of the mounting groove (33). The showcase according to claim 2. The left / right length of the temperature / cooling display plate (21) is set to be larger than the left / right length of the wind direction plate (27), and left and right protrusions (28) are formed at the left and right ends of the temperature / cooling display plate (21). ,
The showcase according to claim 3, wherein the left and right protrusions (28) are received by the groove bottom of the mounting groove (33) in a state where the temperature / cooling display plate (21) is inserted into the mounting groove (33).   The showcase according to claim 3 or 4, wherein a front surface of the mounting groove (33) is defined by a front wall (32) made of a transparent material.   The wind direction plate (27) is formed longer in the left-right direction than the cold air window (38), and the wind direction plate (27) overlaps the entire length of the cold air window (38) in the left-right direction. Showcase described.

Images