JP4179902B2 - Showcase - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a showcase in which a display room is formed in a heat insulating wall, and a shelf for displaying merchandise is installed in the display room.
[0002]
[Prior art]
  Traditionally, showcases installed in supermarkets and convenience stores, etc., form a duct between the heat insulation wall and a partition plate provided with a space inside, and configure a display room inside the partition plate. The duct is provided with a cooler and a blower, and cool air exchanged with the cooler is blown out from the duct into the display room.
[0003]
  In this case, a cold air discharge port is formed at the upper edge of the opening of the display chamber, and a cold air suction port is formed at the lower edge of the opening, both of which communicate with the duct. Then, cold air was blown out from the cold air discharge port at the upper edge of the opening to cool the display room while forming an air curtain, and the blown out cold air was sucked from the cold air outlet at the lower edge of the opening.
[0004]
  Further, a plurality of shelves are installed in the display room. A shelf duct (cold air passage) is formed inside the shelf, and a communication portion is formed at the rear end for communicating with the rear duct at the back of the heat insulating box. In addition, a cold air discharge port communicating with the shelf duct is formed at the front end of the shelf. As a result, the cool air rising in the rear duct is drawn into the shelf duct through the communicating portion, and discharged from the cool air discharge port formed at the front end of the shelf, thereby cooling the display chamber below the shelf. (See Patent Document 1).
[0005]
[Patent Document 1]
          JP 2000-258031 A
[0006]
[Problems to be solved by the invention]
  However, since the back panel (partition plate) constituting the back duct is formed with a communication hole (through hole) for communicating with the communication portion of the shelf duct only at a predetermined height, There was a problem that the height of the shelf could not be changed according to the type of goods displayed on the shelf.
[0007]
  In particular, a rear duct is formed on the back of the display room where the cool air rises.Therefore, simply by forming a mounting hole for installing the shelf at a position where the height of the shelf is desired to be changed, The formed communication hole and the position of the shelf communication portion cannot be matched, and cold air cannot be drawn into the shelf duct. In addition, if a plurality of communication holes are formed in the rear panel corresponding to the range in which the height of the shelf is to be adjusted, there is a problem that the cool air in the rear duct leaks from the communication holes that do not communicate with the communication part of the shelf.
[0008]
  Therefore, the present invention has been made to solve the conventional technical problem, and cool air from the rear duct formed in the heat insulation box is drawn into a shelf duct formed inside, and the cool air is drawn into the front end. It is an object of the present invention to provide a showcase that can easily change the height of a shelf that can be discharged from a cold air discharge port formed on the wall.
[0009]
[Means for Solving the Problems]
  The showcase of the invention of claim 1 comprises a display room in a heat insulating wall, and a plurality of product display shelves are erected vertically in the display room, and is positioned on the back of the display room. And a rear panel for configuring a rear duct in which cool air rises between the heat insulation wall and a shelf, and communicates with the rear duct at the rear end communication portion, and a cold air discharge port is configured at the front end. Shelf duct and electric heater to heat the shelfA damper member that opens and closes the inside of the rear duct above the communicating portion;The shelf is erected so that the vertical position can be changed with respect to the column,Slide the damper member It has a damper rail member to be held in place, and the wiring of the electric heater is accommodated in this damper rail member,The back panel is characterized in that the vertical position of the communicating portion can be changed in accordance with the change in the position of the shelf.
[0010]
  According to the invention of claim 1, in a showcase comprising a display room in a heat insulating wall, and a plurality of upper and lower shelves for product display built in the display room, located on the back of the display room, A rear panel for configuring a rear duct that rises cool air between the heat insulating wall and a shelf, and a shelf that communicates with the rear duct at the rear end communication portion and has a cold air outlet at the front end. Equipped with a duct and an electric heater that heats the shelf, the shelf is installed so that the vertical position can be changed with respect to the column, and the rear panel can change the vertical position of the communication part according to the change in the position of the shelf Therefore, even when the height of the shelf is changed, the shelf duct formed on the shelf can be communicated with the communication portion.
[0011]
  Thus, a showcase is provided in which the height of the shelf is variable, and cool air that rises the back duct from the cold air discharge port formed at the front end of the shelf with variable height can be discharged through the shelf duct. Will be able to. Therefore, the usability of the showcase can be improved.
[0012]
  In addition, by stopping the supply of cool air to the display room and heating the shelves with a heater, the display room can be used for warm storage, and the heat generation of the heater is stopped and the cool air is supplied to the display room. The display room can be refrigerated.
[0013]
  As a result, the temperature in the display room can be set to a temperature suitable for display of various products, and usability and versatility are significantly improved.
[0014]
  In addition, since the damper member that opens and closes the inside of the rear duct is provided on the upper side of the communication portion, the supply of cold air to the display chamber above the shelf is stopped by the damper member, and the shelf is heated by the heater. The upper display room can be used in a refrigerated state, and the heat generation of the heater can be stopped and the cooler can be used in the refrigerated state by supplying cool air to the upper display room from the shelf with a damper member. .
[0015]
  As a result, the temperature in the display room can be set to a temperature suitable for display of various products, and usability and versatility are significantly improved.
[0016]
  Further, the shelf includes a damper rail member that slidably holds the damper member, and the wiring of the electric heater is housed in the damper rail member. Therefore, the wiring of the electric heater is safe and suitable for appearance. It can be stored.
[0017]
  The showcase of the invention of claim 2 is characterized in that, in the above, the back panel is composed of a plurality of panel members that are connected vertically and overlap each other, and the overlapping amount can be changed. .
[0018]
  According to the invention of claim 2, in the above, the back panel is composed of a plurality of panel members that are connected one above the other and overlap each other, and the amount of mutual overlap can be changed. By changing the overlapping amount of the panel members according to the height of the shelf to be performed, the vertical position of the communication portion communicating with the shelf duct can be easily changed.
[0019]
  The showcase of the invention of claim 3 is the above invention,A sealing material is provided in the rear duct at a position corresponding to the rear end of the damper rail member.
[0020]
  According to the invention of claim 3, in each of the above inventions,Since the sealing material is provided in the rear duct at a position corresponding to the rear end of the damper rail member, a gap formed between the rear end of the damper rail member and the front surface of the heat insulating wall can be suitably sealed. Thereby, when the cooling air supply to the display room above the shelf is stopped by the damper member, inconvenience that the cold air in the rear duct leaks from between the damper rail member and the heat insulating wall is obviated. Will be able to.
[0021]
  The showcase of the invention of claim 4 is the above invention,An opening / closing detection means for detecting that the damper member has closed the rear duct; and a control means for controlling the energization of the electric heater. The control means is based on the output of the opening / closing detection means. When the duct is closed, energization control to the electric heater is performed.
[0022]
  According to the invention of claim 4, in each of the above inventions,An opening / closing detection means for detecting that the damper member has closed the rear duct; and a control means for controlling the energization of the electric heater. The control means is based on the output of the opening / closing detection means. When the duct is closed, energization control to the electric heater is performed, so by closing the rear duct with the damper member, the display chamber above the shelf on which the damper member is provided can be heated by the electric heater, It becomes possible to use the display room in a warm storage.
[0023]
  Invention of Claim 5This showcase is characterized in that, in the above-mentioned invention, the control means controls the energization to the shelf in which the damper member closes the rear duct and the electrical heater of the shelf located above the shelf.
[0024]
  Invention of Claim 5According to the present invention, the control means controls the energization to the shelf where the damper member closes the rear duct and the electric heater of the shelf located above the shelf, so that the damper member closes the rear duct. Then, the damper member stops the back duct and the cooling air supply to the upper side of the shelf, and the shelves can be heated by an electric heater. The damper member closes the rear duct from the shelf and the shelf. It becomes possible to use the inside of the upper display room for warm storage.
[0025]
  Invention of Claim 6In the above-described invention, the showcase is composed of at least two systems in which the electric heater of the shelf located at the uppermost stage is arranged at the front and rear, and the control means is located at least at a stage lower than the shelf located at the uppermost stage. When the electric heater of the shelf is energized and the cooling device for cooling the display room is operated, the electric heater of the rear system is prohibited from being energized.
[0026]
  Invention of Claim 6According to the above invention, the electric heater of the shelf located at the uppermost stage is composed of at least two systems arranged at the front and rear, and the control means is the shelf located at the lower stage than the shelf located at the uppermost stage. When the electric heater is energized and the cooling device for cooling the display room is in operation, energization of the electric heater of the rear system is prohibited, so that the shelf is heated by at least the electric heater of the front system. In general, it is possible to avoid the inconvenience of reducing the product value of the product provided from the front side. Further, by prohibiting energization of the electric heaters in the rear system, it is possible to effectively reduce the power consumption. Moreover, the uppermost shelf can obtain the radiant heat by the electric heater of the lower shelf because the electric heater of the lower shelf is energized, and the uppermost shelf can be supplementarily heated. .
[0027]
  Invention of Claim 7This showcase is characterized in that, in the above invention, the control means energizes the electric heaters in the rear system during the off cycle of the cooling device for cooling the display chamber.
[0028]
  Invention of Claim 7According to the present invention, the control means energizes the electric heater of the rear system during the off cycle of the cooling device that cools the display room. By using it for energizing the electric heaters in the rear system during the off cycle of the cooling device, the rear side of the shelf can be heated while suppressing the amount of power consumed at one time. Thereby, according to power consumption, a shelf can be heated now and the usability can be improved further.
[0029]
  Invention of Claim 8This showcase is constructed by laying a shelf that can move in the front-rear direction via a slide rail on a pair of left and right brackets, and the shelf has an elastic lock member positioned between the shelf and the bracket. The locking member is provided with a front end operation part and a hook part formed at the rear of the operation part, and the hook part is always urged in the bracket direction.When the shelf is pushed in, an engaging portion is provided for the hook portion of the lock member to be detachably engaged, and this engaging portion passes from the outside through the insertion port formed in the bracket and faces the shelf side. The engagement member is fixed to the bracket.
[0030]
  Invention of Claim 8According to the present invention, in the showcase in which a pair of left and right brackets is laid with a shelf that is movable in the front-rear direction via a slide rail, the shelf is provided with an elastic lock member that is positioned between the shelf and the bracket. The lock member includes a front end operation portion and a hook portion formed at the rear of the operation portion, and the hook portion is always urged toward the bracket, and a shelf is pushed into the bracket. When the shelf is pushed in, the hook part of the lock member is engaged with the engagement part to stabilize the hook part. The shelf can be held on the bracket. Further, by operating the operation portion of the lock member in the shelf direction, the engagement between the hook portion and the engagement portion of the lock member can be released, and the shelf can be easily moved forward. .
[0031]
  Further, by providing a lock member between the shelf and the bracket, it is possible to easily perform an operation of moving the shelf in the front-rear direction and to improve the appearance.
[0032]
  Furthermore, the engaging part isSince it is constituted by an engaging member that passes through the insertion port formed in the bracket from the outside and faces the shelf side and is fixed to the bracket, the structure of the bracket can be simplified, and the engaging member By passing the insertion port of the bracket from the outside and fixing to the bracket, the engaging portion can be reliably formed on the bracket.
[0033]
  The showcase of the invention of claim 9 is the above invention,A cover member for covering the outside of the bracket and the lower side of the shelf is provided.
[0034]
  According to the invention of claim 9, in the above invention,Since the cover member covering the outer side of the bracket and the lower side of the shelf is provided, it is possible to effectively prevent the bracket and the shelf from moving to the left and right, and to prevent or minimize the distortion of the shelf. Thereby, the back-and-forth movement of the shelf becomes smoother and the usability is improved.
[0035]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of a showcase 1 to which the present invention is applied, FIG. 2 is a partially enlarged vertical side view of the showcase 1, and FIG. 3 is a partially enlarged perspective view of a display chamber 11 in a state where a shelf board 33 is removed. 4 is a partially enlarged perspective plan view of the movable shelf, FIG. 5 is a sectional view taken along the line AA of FIG. 4, FIG. 6 is a partially enlarged view of FIG. 3, FIG. 7 is an exploded perspective view of the movable shelf, and FIG. FIG. 9 is a sectional view taken along the line BB of FIG. 5, FIG. 10 is a partial perspective view of the lock member 55, FIG. 11 is a partial perspective view of the rear surface of the display chamber 11, and FIG. A wiring diagram of H is shown.
[0036]
  The showcase 1 includes a heat insulating wall 3 having a substantially U-shaped cross section that opens to the front and side plates 4 attached to both sides thereof, and a main body 5 is formed. Further, a back panel 6 and a top panel 7 are disposed on the top surface, respectively, and a duct 9 is formed between the back panel 6 and the top panel 7 and the heat insulating wall 3. Details of the back panel 6 will be described later. Further, a deck pan 10 extending forward is provided at the lower end of the back panel 6, and a display chamber 11 is formed inside the back panel 6, the top panel 7, and the deck pan 10. A lower duct 14 that communicates with the duct 9 and constitutes a part thereof is formed below the deck pan 10.
[0037]
  The upper end of the duct 9 communicates with the upper cold air discharge port 16 located at the upper edge of the front opening of the display chamber 11, and the front end of the lower duct 14 is located at the lower edge of the front opening of the display chamber 11, and cold air comprising a plurality of slits. It communicates with the suction port 17. A blower (not shown) for supplying cold air is disposed in the lower duct 14 below the deck pan 10, and a cooler 15 constituting a refrigeration cycle of the cooling device is vertically installed in the duct 9 of the display chamber 11. ing. Reference numeral 19 denotes a fluorescent lamp attached to the front side of the upper cold air discharge port 16.
[0038]
  A machine room (not shown) is formed below the heat insulating wall 3, and a compressor, a condenser, and a condenser blower that constitute a refrigeration cycle of the cooling device together with the cooler 15 are installed in the machine room. An electrical box that houses the power supply and control board is also provided. A back plate 20 made of steel plate is attached to the back of the heat insulating wall 3 with a predetermined distance from the back surface of the heat insulating wall 3, and an exhaust duct 21 is provided between the back plate 20 and the heat insulating wall 3. It is configured.
[0039]
  The lower end of the exhaust duct 21 is opened and communicated with the rear portion of the machine room, and the upper end is opened above the showcase 1. Reference numeral 23 denotes a panel for closing the front of the machine room so as to be freely opened and closed. Reference numeral 24 denotes an evaporating dish provided in the lower part of the machine room, and drain water (dew water, defrost water, etc.) from the cooler 15 flows in through a drain hose (not shown) and is stored.
[0040]
  A plurality of movable shelves that can be drawn and moved in the front-rear direction are arranged in the display chamber 11, and in this embodiment, 25, 26, 27, and 28 are erected in order from the top. Heating heaters H (electric heaters; see FIG. 12) are attached to the back sides of the product placement surfaces of the movable shelves 25, 26, 27, and 28, respectively.
[0041]
  Each movable shelf 25, 26, 27, 28 has hook-like claws 29, 29 (two in the vertical direction in this embodiment) protruding rearward at the rear end, and the left and right formed in a substantially crank-shaped cross section A pair of brackets 30, a slide rail 31 whose fixed side 31 A is fixed to the inner surface 30 A of the bracket 30 with screws 32, and a movable side 31 B of the slide rail 31 are fixed to the side walls 33 A with screws 35. It is comprised from the shelf board 33 supported by the brackets 30 and 30 so that front-back movement is possible, the shelf support | pillar 36, etc. FIG. In addition, since the shelf board 33 is attached to the bracket 30 via the movable slide rail 31B, the lower surface of the bracket 30 and the lower surface of the shelf board 33 are spaced apart.
[0042]
  The shelf columns 36 are attached to both sides of the front surface of the back panel 6 in the display chamber 11, and a plurality of attachment holes 37 are formed vertically. The movable shelves 25, 26, 27, 28 are installed between the shelf columns 36, 36. The brackets 30 and 30 are detachably held on the shelf column 36 by inserting and engaging the claws 29 to the mounting holes 37 of the shelf column 36.
[0043]
  In the present embodiment, a fixing member 39 for restricting the vertical movement of the bracket 30 is attached to the surface of the bracket 30 on the display chamber 11 side. The fixing member 39 is formed by bending a metal plate or integrally molding a hard synthetic resin. As shown in FIG. 6, the fixing member 39 protrudes from the upper and lower ends of the main body 40 toward the display chamber 11 side. After being bent from the rear end of the body 41 and the main body 40 to the side of the low bracket 30 side, the engaging claw 42 protruding rearward and from the front end of the main body 40 to the side of the bracket 30 are low, for example, about 5 mm. The insertion side 43 is integrally formed. In addition, a long hole 44 extending in the front-rear direction is formed in the main body. It should be noted that the vertical dimension of the engaging claw 42 is slightly smaller than the vertical dimension of the mounting hole 37 formed in the shelf column 36 in order to facilitate insertion / removal of the engaging claw 42.
[0044]
  Here, it is assumed that the fixing member 38 of FIG. 6 is attached to the left shelf column 36 and the one attached to the right shelf column 36 has a symmetrical shape with that of FIG. The insertion side 43 has a shape that can be inserted into and removed from an insertion hole 45 formed in the bracket 30 in advance. At the rear of the insertion hole 45, an engagement hole 47 is formed that matches the elongated hole 44 of the fixing member 38 and can be fixed by the decorative screw 46.
[0045]
  With such a configuration, in the state where the claws 29 of the brackets 30 and 30 are held in the mounting holes 37 of the shelf column 36, the gripping side 41 of the fixing member 38 is held, and the engaging claws 42 of the fixing member 38 are The bracket 30 is inserted into the mounting hole 37 positioned between the mounting holes 37 and 37 with which the claws 29 are engaged. Then, the insertion side 43 of the fixing member 38 is inserted into the insertion hole 45 of the bracket 30, the long hole 44 of the fixing member 38 and the engagement hole 47 of the bracket 30 are matched, and fixed by the decorative screw 46.
[0046]
  Thereby, the vertical movement of the bracket 30 can be reliably controlled. When moving the height of the movable shelves 25, 26, 27, and 28 as will be described later, first, the decorative screw 46 for fixing the fixing member 38 and the bracket 30 is loosened, and the insertion side 43 of the fixing member 38 is moved to the bracket. 30 with the fixing member 38 attached to the bracket 30 with the decorative screw 46, the fixing member 38 is moved forward through the long hole 44, and the engaging claw 42 is moved to the shelf post. 36 is removed from the mounting hole 37. Thereby, the restriction | limiting of the vertical movement of the bracket 30 can be cancelled | released.
[0047]
  And after engaging the nail | claw 29 of the bracket 30 with the attachment hole 37 of the shelf support | pillar 36 corresponding to the position of the height after a change, the fixing member 38 in the state attached to the bracket 30 with the decorative screw 46, The engaging claw 42 is inserted into the mounting hole 37 of the shelf column 36 through the long hole 44, and the insertion side 43 of the fixing member 38 is inserted from the insertion hole 45 of the bracket 30. The vertical movement of the bracket 30 can be easily restricted by tightening the decorative screw 46. The fixing member 38 is concealed by the shelf plate 33 by placing the shelf plate 33 from above, so that the inconvenience of exposing the fixing member 38 can be avoided, and the appearance is also suitable. It will be something.
[0048]
  On the other hand, at the side end of the shelf board 33, as shown in FIGS. 5 and 7, a slide rail cover member 53 having a substantially L-shaped cross section that opens to the bracket 30 side and below is provided with the side end of the shelf board 33 and the slide rail. The cover member 53 is also fastened together with the movable side 31B of the slide rail by a screw 35. The cover member 53 has a front end protruding toward the bracket 30 and a holding portion 54 that is notched downward from the upper end.
[0049]
  On the other hand, the slide rail 31 fixed to the bracket 30 and the shelf board 33 is attached at a predetermined interval from the front ends of the bracket 30 and the shelf board 33, and the shelf board 33 positioned in front of the slide rail 33. A lock member 55 is attached to the front portion of the.
[0050]
  The lock member 55 is configured by a leaf spring (an elastic body having elasticity) as an urging member that is constantly urged toward the bracket 30 side, and by a screw 58 via an attachment hole 57 formed in the rear part. The cover member 53 and the shelf plate 33 are fixed together. An operation portion 56 is formed at the front end of the lock member 55, and a hook portion 58 is formed between the operation portion 56 and the attachment hole 57. As shown in FIG. 7, the hook portion 58 is formed by inclining toward the bracket 30 side from the rear portion of the lock member 55 toward the front, and then cutting out the lower end from the front.
[0051]
  The operation unit 56 is held in the holding unit 54 as shown in FIG. 10 with the lock member 55 attached to the shelf plate 33. The operation unit 56 is provided outside the front end of the holding unit 54 and is bent to the shelf 33 side.
[0052]
  On the other hand, the bracket 30 is provided with an engaging member 60. The engaging member 60 is formed by bending a metal plate or integrally molding a hard synthetic resin. As shown in FIG. 7, the engaging member 60 is bent from the rear end of the main body 62 toward the low permission bracket 30 side. The engaging claw 63 and the front upper end of the main body 62 are bent substantially at right angles to the bracket 30 side, and integrally include an engaging portion 61 that has a hook shape toward the rear. In the engaging portion 61, an engaging hole 64 is formed in the main body 62.
[0053]
  The bracket 30 is formed with a rectangular insertion port 59 corresponding to the position where the lock member 55 is provided. The engagement port 60 is engaged with the insertion port 59 from the outside of the bracket 30. Part 61 is inserted. Since the engagement hole 65 for matching the engagement hole 64 is formed in the bracket 30 in advance, the engagement member 60 is fixed to the bracket 30 by a screw 66 from the outside of the bracket 30.
[0054]
  Thus, when the shelf plates 33 of the movable shelves 25, 26, 27, and 28 are pushed into the display chamber 11, the hook portion 58 of the lock member 55 is provided on the bracket 30 as shown in FIGS. 8 and 9. The engaging member 61 is engaged with the engaging portion 61. At this time, the leaf spring that forms the lock member 55 is in contact with the engagement portion 61 of the bracket 30 and is stretched, and the hook portion 58 of the lock member 55 is attached so as to be always engaged with the engagement portion 61 by the leaf spring. It is energized.
[0055]
  Accordingly, the movable shelves 25, 26, 27, and 28 are stably held, and the shelf board 33 is prevented from inadvertently moving to the near side when the customer takes out the product.
[0056]
  Next, when the shelf plate 33 is pulled out from the inside of the display chamber 11, the operation portion 56 of the lock member 55 is pushed inward (leftward in FIGS. 8 and 9), and the leaf springs constituting the lock member 55 are pushed. The engagement between the hook portion 58 and the engagement portion 61 of the lock member 55 is released against the urging force. In this state, the shelf board 33 becomes free and can move to the near side as shown in FIG.
[0057]
  After that, when the shelf plate 33 is pushed back again into the display chamber 11, the rear surface of the hook portion 58 of the lock member 55 comes into contact with the engagement portion 61 of the engagement member 60. At this time, when the lock member 55 comes into contact with the engaging portion 61, the lock member 55 is urged by the leaf spring and is pushed toward the shelf 33. Therefore, when the shelf plate 33 is further pushed in, the hook portion 58 reaches the engaging portion 61 and engages with them, and thereafter, the shelf portion 33 is stably held by the urging force of the leaf spring of the lock member 55 as described above. The
[0058]
  Further, as described above, the lock member 55 that restricts the movement of the movable shelf 25, 26, 27, or 28 is provided between the shelf board 33 and the bracket 30, so that the operation of moving the shelf board 33 in the front-rear direction is performed. Can be easily performed. Further, by providing it on the side of the shelf that is difficult to see from the front, the appearance can be improved.
[0059]
  Further, as described above, the engaging portion 61 that is detachably engaged with the lock member 55 passes through the insertion port 59 formed in the bracket 30 from the outside and faces the shelf plate 33 side. Therefore, the structure of the bracket 30 itself can be simplified. Further, the engaging member 61 can be reliably formed in the bracket 30 by passing the engaging member 60 from the outside through the insertion port 59 of the bracket 30 and fixing the engaging member 60 to the bracket 30.
[0060]
  Further, the lock member 55, the locking portion 61 of the engaging member 60, and the screw 59 for fixing the engaging member 60 to the bracket 30 are all spaces in which the slide rail 31 for moving the shelf board 33 back and forth is formed. Therefore, it is possible to reduce the size of the showcase 1 and expand the effective space in the display room 11.
[0061]
  The outer side of the bracket 30 and the lower surface of the shelf plate 33 are covered with a cover member 50 made of, for example, a steel plate that is open at least on the upper surface. The cover member 50 is attached by matching an engagement hole 52 formed in advance on the lower surface of the bracket 30 with an engagement hole 67 formed in the cover member 50 and screwing them with screws 51. As a result, it is possible to effectively prevent the bracket 30 and the shelf plate 33 from swinging to the left and right, and to prevent or minimize the distortion of the movable shelf. Therefore, the movable shelf can be moved back and forth more smoothly and the usability can be improved.
[0062]
  On the other hand, in this embodiment, the movable shelf 25 constituting the uppermost stage and the cover member 50 constituting the movable shelf 26 constituting the second stage from the top have openings on the front and rear surfaces, and on the lower surface of the shelf plate 33. Since they are located at a predetermined interval, a shelf duct 53 is formed between them. Between the front end of the shelf 33 and the front end of the cover member 50 is formed a shelf lower air discharge port 70 opened at the front end of the shelf duct 53. The front end of the shelf 33 and the front end of the cover member 50 are lower as shown in FIG. Therefore, the under-shelf cold air discharge port 70 is oriented obliquely forward and downward.
[0063]
  Further, the rear end of the cover member 50 is formed with a flange portion 50A that is bent downward at a predetermined predetermined angle. In this embodiment, the flange portion 50A has a left and right upper portion from the lower end in two directions. A locking portion 50B that is cut away is formed. Further, the rear end of the shelf duct 53 communicates with the rear duct 9 through communication portions 101, 102 formed by a plurality of rear panel members 92, 94 or 95, 97 constituting the rear panel 6 as will be described in detail later. Yes.
[0064]
  A damper member 71 is attached to the upper surface of the cover member 50. As shown in FIGS. 2 and 3, the damper member 71 has an operation portion 72 facing downward from the center portion of the cover member 50, and stands up so as to extend from the operation portion 72 to the left and right and close to the lower surface of the cover member 50. A wall portion 73, a plurality of ventilation portions (round holes) 74 formed in the standing wall portion 73, a closing plate portion 76 extending rearward from the upper end of the standing wall portion 73, and the rear of the closing plate portion 76 It is comprised from the sealing member 80 provided in the end over left and right.
[0065]
  The damper member 71 is slidably held back and forth by damper rail members 77 having a substantially crank-shaped cross section provided on both sides of the cover member 50. The damper member 71 can be moved by loosening the cosmetic screw 79 screwed into the cover member 50 from below, and the damper member 71 cannot be moved at that position by tightening. In this embodiment, a damper sensor (open / close detection means) for detecting that the damper member 71 has closed the rear duct 9 is provided at the rear end of the closing plate portion 76 constituting the rear end of the damper member 71. ) 90 is provided and is connected to a control device (not shown).
[0066]
  Here, as shown in FIG. 3, the damper rail member 77 houses the wiring 81 of the heating heater H for heating the product placement surfaces of the movable shelves 25 and 26 as described above. At the rear end of the upper surface of the damper rail member 77, a wiring storage port 82 for drawing the wiring 81 into the inside is formed. As a result, the wiring 81 of the heating heater H can be stored safely and suitably in appearance.
[0067]
  A seal member 83 for closing a gap formed between the rear end of the damper rail member 77 and the front surface of the heat insulating wall 3 constituting the rear duct 9 is attached to the rear of the damper rail member 77. It has been. The seal member 83 is made of an elastic material, and is deformed by being pressed by the damper rail member 77 to seal between the damper rail member 77 and the front surface of the heat insulating wall 3, and the damper rail. By removing the member 77, the seal member 83 is assumed to return to its original state. Further, the seal member 83 is configured such that the movable shelves 25 and 26 can be moved up and down within a predetermined range, so that the range of the movable height of the damper rail member 77 provided on the movable shelves 25 and 26 is set. It is assumed that it is provided extending vertically.
[0068]
  In the present embodiment, as shown in FIG. 3, the shelf column 36 has a substantially U-shaped cross section that opens toward the display chamber 11, and the movable columns above and below the movable shelf are located in the shelf column 36. A wiring accommodating portion 85 for accommodating the wiring of the heating heater H provided in the housing is formed, and the wiring accommodating portion 85 is provided with a seal member 84 for sealing the inside of the shelf column 36. Yes. In FIG. 3, reference numeral 87 denotes a steel plate member having a substantially L-shaped cross section, which holds the rear end of the shelf 33 and is connected to each of the rear panel members 94 and 97 described later. It is a member. The connecting member 87 is formed with mounting holes 89 and 89 for screwing with the respective back panels 97 and 97 with the decorative screw 88.
[0069]
  Next, with reference to FIG.2 and FIG.12, the back panel 6 of this invention is demonstrated. The back panel 6 of the present invention includes a plurality of back panel members 91, 92, 94, 95, and 97, and a back surface portion 7A in which the rear end of the top panel 7 is bent downward. The back panel member 91 constitutes the lower part of the back panel 6, in the present embodiment, the back of the lowermost movable shelf 28 and a part of the back of the movable shelf 27 constituting the second stage from the bottom. It is fixed to the main body 5 with a predetermined distance from the front surface of the heat insulating wall 3. Further, on the upper part of the back panel member 91, engagement holes (not shown) are formed on the left and right.
[0070]
  The back panel member 92 is a plate-like member that forms the upper part of the back of the movable shelf 27 that forms the second stage from the bottom, and a plurality of engagement holes 100 are provided on the left and right sides of the back panel member 92 in the vertical direction. Is formed. The back panel member 92 overlaps with the back panel member 91 and matches any of the engagement holes 100 of the back panel member 92 with the engagement holes of the back panel member 91. The panel member 92 is detachably fixed to the back panel member 91. Thereby, the height of the back surface of the movable shelf 27 in the second stage from the bottom can be adjusted by changing the overlapping amount of the back panel members 91 and 92.
[0071]
  A flange portion 92A bent forward is formed at the upper end of the back panel member 92, and so-called collared screws 99 are attached to the left and right sides of the flange portion 92A. In the present embodiment, the screw 99 supports the locking portion 50B formed on the cover member 50 of the movable shelf 26 constituting the third step from the bottom, that is, the second step from the top, so as to be freely disengageable from above. Is.
[0072]
  Further, the back panel member 94 constitutes a lower back portion of the movable shelf 26, and a flange portion 94 </ b> A is formed at the lower end of the back panel member 94 over the left and right. Engagement holes (not shown) are formed on the left and right sides of the flange portion 94 </ b> A. Further, on the upper part of the back panel member 94, engagement holes (not shown) are formed on the left and right.
[0073]
  The back panel member 95 is a plate-like member that forms the upper part of the back surface of the movable shelf 26, and is configured in the same manner as the back panel member 92. That is, a plurality of engagement holes 103 are formed on the left and right sides of the back panel member 95 in the vertical direction. The rear panel member 95 overlaps with the rear panel member 94 so that any one of the engagement holes 103 of the rear panel member 95 and the engagement hole of the rear panel member 94 are matched. The panel member 95 is detachably fixed to the back panel member 94. Thereby, the height of the back surface of the movable shelf 26 can be adjusted by changing the overlapping amount of the back panel members 94 and 95.
[0074]
  Further, a flange portion 95A bent forward is formed at the upper end of the back panel member 95, and so-called collared screws 99 are similarly attached to the left and right sides of the flange portion 95A. In this embodiment, the screw 99 supports the locking portion 50B formed on the cover member 50 of the movable shelf 25 constituting the uppermost stage so as to be freely disengaged from above.
[0075]
  Further, the back panel member 97 constitutes a lower back portion of the movable shelf 25, and a flange portion 97 </ b> A is formed at the lower end of the back panel member 97 on the left and right. Engagement holes (not shown) are formed on the left and right sides of the flange portion 97A. The flange portions 97A are detachably fixed by a decorative screw 88 in alignment with the mounting holes 89 of the connecting member 87 provided at the rear end of the movable shelf 25. A plurality of engagement holes 104 are formed on the left and right sides of the back panel member 97 in the vertical direction.
[0076]
  The back surface portion 7A of the top plate 7 constituting the upper back surface of the movable shelf 25 is fixed to the main body 5 at a predetermined distance from the front surface of the heat insulating wall 3, and the lower portion of the back surface portion 7A is left and right. An engagement hole (not shown) is formed.
[0077]
  As a result, one of the engagement holes 104 of the back panel member 97 and the engagement hole of the back surface portion 7A of the top plate 7 are matched, and the back panel member 97 is detachably fixed to the back surface portion 7A by the decorative screw 98. To do. Thereby, the height of the back surface of the movable shelf 25 can be adjusted by changing the overlapping amount of the back panel member 97 and the back surface portion 7A.
[0078]
  With the above configuration, when changing the vertical position of the uppermost movable shelf 25, first, the shelf plate 33 is first pulled out, and the back panel member 97 and the connecting member 87 of the movable shelf 25 are connected. Remove screw 88. Thereafter, the decorative screw 98 connecting the back panel member 97 and the back surface portion 7A of the top plate 7 is removed, and the back panel member 97 is removed. Next, the decorative screw 98 connecting the back panel member 95 and the back panel member 94 is removed, and the back panel member 95 is pulled downward, whereby the screw 99 of the flange portion 95A and the cover member 50 of the movable shelf 25 are formed. The connection with the locking portion 50B is released. Thereby, the back panel member 95 is removed.
[0079]
  Here, as described in detail above, the engaging claw 42 of the fixing member 39 attached to the bracket 30 of the movable shelf 25 is pulled out from the mounting hole 37 of the shelf column 36, and then the movable shelf 25 is lifted upward slightly and pulled forward. As a result, the claw 29 of the bracket 30 is pulled out from the mounting hole 37 of the shelf column 36 and the movable shelf 25 is removed.
[0080]
  The movable shelf 25 is moved to a height to be changed, and the claw 29 is inserted into the mounting hole 37 of the shelf column 36, and then the shelf 25 is fixed to the shelf column 36 by the fixing member 39. Thereafter, the screw 99 fixed to the upper end of the back panel member 95 is inserted into the locking portion 50B of the movable shelf 25, the back panel member 95 and the back panel member 94 are overlapped, and the engagement holes 103 and the like formed in these Is polymerized and fixed with a cosmetic screw 98. Here, a plurality of mounting holes 37 are formed in the shelf column 36 in advance over the range of vertical movement of the movable shelf 25, and the engagement holes 103 formed in the back panel member 95 are formed in the movable shelf 25. A plurality of the vertical movement ranges are formed. Therefore, the engagement holes of the back panel members 95 and 94 can be easily matched.
[0081]
  Next, the shelf plate 33 of the movable shelf 25 is pulled forward, and the back panel member 97 is fixed to the connecting member 87 of the movable shelf 25 with the decorative screw 88. Thereafter, the back panel member 97 and the back surface portion 7 </ b> A of the top plate 7 are fixed with the decorative screws 98. Here, similarly to the back panel member 95, the back panel member 97 has a plurality of engagement holes 104 corresponding to the vertical movement range of the movable shelf 25. The engagement holes of the back surface portion 7A of the top plate 7 can be matched.
[0082]
  Thus, by configuring the back panel 6 with a plurality of back panel members, the communicating portion 102 communicating with the shelf duct 53 of the movable shelf 25 can be easily moved up and down and changed. For this reason, the height of the movable shelf 25 can be made variable, and the cool air rising the back duct 9 can be discharged through the shelf duct 53 from the under-shelf cold air discharge port 70 formed at the front end of the movable shelf 25. Case 1 can be provided. Thereby, the height of the shelf can be changed according to the type of the product placed on the movable shelf 25, and the usability of the showcase 1 can be improved.
[0083]
  Since the seal member 83 is provided behind the damper rail 77 provided on the movable shelf 25 over the movable height range of the movable shelf 25, the height of the movable shelf 25 is Even if it is changed, the gap formed between the rear end of the damper rail member 77, the front surface of the rear duct 9, and the heat insulating wall 3 can be suitably sealed. Thereby, when the cold air supply to the display chamber above the movable shelf 25 is stopped by the damper member 71, the disadvantage that the cold air in the rear duct 9 leaks from between the damper rail member 77 and the heat insulating wall 3 is obviated. Will be able to avoid.
[0084]
  Further, even when the rear duct 9 is configured to become narrower as it goes upward, and the movable shelf 25 installed in the display chamber 11 is provided rearward as it goes upward, such a sealing member. Since 83 is made of an elastic material, the gap between the damper rail member 77 and the heat insulating wall 3 can be suitably sealed regardless of the depth of the rear duct 9.
[0085]
  As for the movable shelf 26, the height of the shelf can be changed in the same manner as the movable shelf 25, and the communicating portion 101 communicating with the shelf duct 53 of the movable shelf 26 can be easily moved up and down to be changed. Can do. Thereby, the usability of the showcase 1 is further improved.
[0086]
  In this embodiment, the vertical heights of the communicating portions 102 and 101 communicating with the movable shelf 25 or 26 can be changed by combining a plurality of rear panel members so as to be freely disengaged. Method, for example, an opening is formed in the rear panel 6 in a range in which the movable shelf 25 or 26 is moved, and a rear panel member is formed integrally with the movable shelf 25 or 26, and the rear panel member forms a portion other than the shelf duct 53. By closing the corresponding opening, the vertical heights of the communication portions 102 and 101 communicating with the movable shelf 25 or 26 may be changeable.
[0087]
  Further, the showcase 1 in the present embodiment has a height of 385 mm from the installation floor to the lowermost movable shelf 28 of the display room 11, and the height from the movable shelf 28 to the second movable shelf 27 from the bottom. 230 mm, the height from the movable shelf 27 to the second movable shelf 26 is 216 mm, the height from the movable shelf 26 to the uppermost movable shelf 25 is 186 mm, and the height from the movable shelf 25 to the cold air discharge port 16 The length is set to 182 mm. Further, from this state, it is assumed that the movable shelf 27 can move up and down in a range of up to 90 mm, the movable shelf 26 up to 105 mm, and the movable shelf 25 up to 60 mm. In the present embodiment, each height and range are set as described above, but other heights and ranges may be used.
[0088]
  Further, the shelf support column 36 for laying these movable shelves 25, 26, 27, 28 includes a plurality of types of products displayed on each shelf, such as 190 ml cans, 350 ml PET bottles, 500 ml PET bottles, and 2L PET bottles. It is assumed that a plurality of mounting holes 37 are formed according to the height and the combination of shelves to be placed.
[0089]
  Thereby, when changing the kind of goods displayed on each shelf 25, 26, 27, 28, the height of these shelves can be easily changed, and usability is remarkably improved.
[0090]
  Further, a mark such as a number or a mark may be formed in the vicinity of the mounting hole 37 of the shelf column 36, and a pattern table may be formed in advance according to the type of products to be displayed and the combination of shelves to be displayed. Thereby, the movable shelves 25 to 27 can be moved to a height corresponding to the products to be displayed easily, and the convenience is further improved.
[0091]
  In the showcase 1 of this embodiment, as described in detail above, the movable shelf 25 constituting the uppermost stage and the movable shelf 26 constituting the second stage from above have shelf ducts 53 and damper members. By providing 71, it becomes possible to operate the said damper member 71 and to close the back surface duct 9 with the height of the operated movable shelf.
[0092]
  Therefore, when only the damper member 71 of the movable shelf 25 is operated and the rear duct 9 is closed at such a height, a part of the cool air rising in the rear duct 9 is formed in the rear panel member 92. The remaining part is discharged from the engagement hole 100 and enters the shelf duct 53 of the movable shelf 26 from the communication portion 101 formed between the back panel members 92 and 94 and is displayed from the shelf under-cool air discharge port 70. It is discharged toward the lower part in the chamber 11. Further, the remaining cold air further rises in the rear duct 9 and enters the shelf duct 53 of the movable shelf 25 from the communication portion 102 formed by the rear panel member 95 and the damper member 71, and from the under-shelf cold air discharge port 70. It is discharged toward the lower part in the display chamber 11.
[0093]
  Thereby, the inside of the display chamber 11 below the movable shelf 25 can be refrigerated and used by supplying cold air. In this embodiment, since the damper sensor 90 is provided at the rear end of the damper member 71 as described above, when it is detected that the damper member 71 is closed, the control device It is assumed that 25 heating heaters H are energized. Thereby, the inside of the display chamber 11 above the movable shelf 25 can be kept warm by stopping the supply of cold air and energizing the heater H.
[0094]
  When the damper member 71 of the movable shelf 26 is operated and the rear duct 9 is closed at such a height, a part of the cool air rising in the rear duct 9 is partly formed on the rear panel member 92. The remaining cool air discharged from the joint hole 100 enters the shelf duct 53 of the movable shelf 26 from the communication portion 101 formed between the rear panel members 92 and 94, and enters the display chamber 11 from the shelf under-cool air discharge port 70. It is discharged toward the inner bottom.
[0095]
  Thereby, the inside of the display chamber 11 below the movable shelf 26 can be refrigerated and used by supplying cold air. Even in such a case, since the damper sensor 90 is provided at the rear end of the damper member 71, when it is detected that the damper member 71 is closed, the control device uses the movable shelf 26. It is assumed that the upper movable shelf, that is, the heater H for heating the movable shelves 25 and 26 is energized. As a result, the inside of the display chamber 11 above the movable shelf 26 can be kept warm by stopping the supply of cold air and energizing the heater H. In such a case, it is desirable that the damper member 71 of the movable shelf 25 is closed in order to effectively convect the air in the display chamber 11 above the movable shelf 26.
[0096]
  When the damper members 71 of the movable shelves 25 and 26 are opened, the cool air is supplied to all the display chambers 11 and the heaters H are energized as in the conventional showcase 1. By prohibiting it, it can be used refrigerated. Further, the operation of the cooling device of the showcase 1 is stopped, and the heating heaters H of the movable shelves 25, 26, 27, and 28 are energized so that all the display chambers 11 can be used in a warm state. it can.
[0097]
  Thereby, it becomes possible to set various temperatures according to the products displayed in the display room 11, and the usability and versatility of the showcase 1 are remarkably improved according to the combination of display of the products. Is.
[0098]
  In this embodiment, for example, the heater H for the movable shelf 25 constituting the uppermost stage is composed of two heaters H1 and H2 arranged at the front and rear as shown in FIG. 12, and the heaters H1 and H2 are arranged. May be energized separately. That is, when the power consumption of the entire showcase 1 is large, for example, when the lower two stages are refrigerated and the upper two stages are refrigerated, only the heater H1 disposed on the front side of the movable shelf 25 is energized. Then, energization of the heater H2 disposed on the rear side is prohibited.
[0099]
  Thereby, only the front part of the movable shelf 25 is heated, and the power consumption of the entire showcase 1 can be reduced. In addition, since the commodity displayed on the movable shelf 25 is normally taken out from the front side, the commodity displayed on the rear side is taken out when the front commodity is taken out. It is heated by a heater H1 for heating the front side. Even when the heater H2 on the rear side of the uppermost movable shelf 25 is not energized, the movable shelf 25 is a part of the heat when the lower movable shelf is heated. Is raised, the movable shelf 25 can be supplementarily heated. Thereby, the power consumption of the entire showcase 1 can be reduced without significantly affecting the sales of the product.
[0100]
  In particular, the rated current used in the showcase 1 was suppressed to 13 A or less in the case of the example through the case where the inside of the display room 11 was refrigerated, the case where the display room 11 was used in combination, and the case where these were used in combination. As a result, only one ordinary power supply plug of 125 V and a rated rating of 15 A is required, and the usability is extremely good, and it can contribute to energy saving.
[0101]
  In the above description, when the off-cycle operation of the cooling device is being performed, the control device energizes the heating heater H2. Thereby, it becomes possible to assist the heating of the commodity on the rear side of the movable shelf 25 without affecting the power consumption of the showcase 1 as a whole.
[0102]
  Further, in this embodiment, only the uppermost movable shelf 25 is configured by two heating heaters in the front and rear, but the heating heaters H provided in the other movable shelves are also configured in the same manner as described above. It may be controlled as follows.
[0103]
  In the embodiment, the present invention is applied to the open showcase as described above. However, the present invention is not limited to this, and a desktop showcase in which the display room is surrounded by transparent glass may be used. In the embodiment, the movable shelves including the shelf duct 53 and the damper member 71 are provided in the upper two stages. However, the present invention is not limited to this, and one or more stages may be formed. In the embodiment, the movable shelves not provided with the shelf duct 53 and the damper member 71 are provided in the lower two stages. However, the present invention is not limited thereto, and one or more stages may be formed.
[0104]
【The invention's effect】
  As described above in detail, according to the first aspect of the present invention, in a showcase in which a display room is formed in a heat insulating wall, and a plurality of product display shelves are installed vertically in the display room, The rear panel is located on the back and is used to form a rear duct that cools air between the insulation wall and the rear panel. The rear panel is connected to the rear duct at the rear end communication section, and at the front end is a cold air outlet. The shelf is constructed so that the vertical position of the shelf can be changed with respect to the support column, and the back panel is connected to the communication portion in accordance with the position change of the shelf. Since the vertical position can be changed, even if the height of the shelf is changed, the shelf duct formed on the shelf and the communication portion can be communicated with each other.
[0105]
  Thus, a showcase is provided in which the height of the shelf is variable, and cool air that rises the back duct from the cold air discharge port formed at the front end of the shelf with variable height can be discharged through the shelf duct. Will be able to. Therefore, the usability of the showcase can be improved.
[0106]
  In addition, by stopping the supply of cool air to the display room and heating the shelves with a heater, the display room can be used for warm storage, and the heat generation of the heater is stopped and the cool air is supplied to the display room. The display room can be refrigerated.
[0107]
  As a result, the temperature in the display room can be set to a temperature suitable for display of various products, and usability and versatility are significantly improved.
[0108]
  In addition, since the damper member that opens and closes the inside of the rear duct is provided on the upper side of the communication portion, the supply of cold air to the display chamber above the shelf is stopped by the damper member, and the shelf is heated by the heater. The upper display room can be used in a refrigerated state, and the heat generation of the heater can be stopped and the cooler can be used in the refrigerated state by supplying cool air to the upper display room from the shelf with a damper member. .
[0109]
  As a result, the temperature in the display room can be set to a temperature suitable for display of various products, and usability and versatility are significantly improved.
[0110]
  Further, the shelf includes a damper rail member that slidably holds the damper member, and the wiring of the electric heater is housed in the damper rail member. Therefore, the wiring of the electric heater is safe and suitable for appearance. It can be stored.
[0111]
  According to the invention of claim 2, in the above, the back panel is composed of a plurality of panel members that are connected one above the other and overlap each other, and the amount of mutual overlap can be changed. By changing the overlapping amount of the panel members according to the height of the shelf to be performed, the vertical position of the communication portion communicating with the shelf duct can be easily changed.
[0112]
  According to the invention of claim 3, in each of the above inventions,Since the sealing material is provided in the rear duct at a position corresponding to the rear end of the damper rail member, a gap formed between the rear end of the damper rail member and the front surface of the heat insulating wall can be suitably sealed. Thereby, when the cooling air supply to the display room above the shelf is stopped by the damper member, inconvenience that the cold air in the rear duct leaks from between the damper rail member and the heat insulating wall is obviated. Will be able to.
[0113]
  According to the invention of claim 4, in each of the above inventions,An opening / closing detection means for detecting that the damper member has closed the rear duct; and a control means for controlling the energization of the electric heater. The control means is based on the output of the opening / closing detection means. When the duct is closed, energization control to the electric heater is performed, so by closing the rear duct with the damper member, the display chamber above the shelf on which the damper member is provided can be heated by the electric heater, It becomes possible to use the display room in a warm storage.
[0114]
  Invention of Claim 5According to the present invention, the control means controls the energization to the shelf where the damper member closes the rear duct and the electric heater of the shelf located above the shelf, so that the damper member closes the rear duct. Then, the damper member stops the back duct and the cooling air supply to the upper side of the shelf, and the shelves can be heated by an electric heater. The damper member closes the rear duct from the shelf and the shelf. It becomes possible to use the inside of the upper display room for warm storage.
[0115]
  Invention of Claim 6According to the above invention, the electric heater of the shelf located at the uppermost stage is composed of at least two systems arranged at the front and rear, and the control means is the shelf located at the lower stage than the shelf located at the uppermost stage. When the electric heater is energized and the cooling device for cooling the display room is in operation, energization of the electric heater of the rear system is prohibited, so that the shelf is heated by at least the electric heater of the front system. In general, it is possible to avoid the inconvenience of reducing the product value of the product provided from the front side. Further, by prohibiting energization of the electric heaters in the rear system, it is possible to effectively reduce the power consumption. Moreover, the uppermost shelf can obtain the radiant heat by the electric heater of the lower shelf because the electric heater of the lower shelf is energized, and the uppermost shelf can be supplementarily heated. .
[0116]
  Invention of Claim 7According to the present invention, the control means energizes the electric heater of the rear system during the off cycle of the cooling device that cools the display room. By using it for energizing the electric heaters in the rear system during the off cycle of the cooling device, the rear side of the shelf can be heated while suppressing the amount of power consumed at one time. Thereby, according to power consumption, a shelf can be heated now and the usability can be improved further.
[0117]
  Invention of Claim 8According to the present invention, in the showcase in which a pair of left and right brackets is laid with a shelf that is movable in the front-rear direction via a slide rail, the shelf is provided with an elastic lock member that is positioned between the shelf and the bracket. The lock member includes a front end operation portion and a hook portion formed at the rear of the operation portion, and the hook portion is always urged toward the bracket, and a shelf is pushed into the bracket. When the shelf is pushed in, the hook part of the lock member is engaged with the engagement part to stabilize the hook part. The shelf can be held on the bracket. Further, by operating the operation portion of the lock member in the shelf direction, the engagement between the hook portion and the engagement portion of the lock member can be released, and the shelf can be easily moved forward. .
[0118]
  Further, by providing a lock member between the shelf and the bracket, it is possible to easily perform an operation of moving the shelf in the front-rear direction and to improve the appearance.
[0119]
  Furthermore, the engaging part isSince it is constituted by an engaging member that passes through the insertion port formed in the bracket from the outside and faces the shelf side and is fixed to the bracket, the structure of the bracket can be simplified, and the engaging member By passing the insertion port of the bracket from the outside and fixing to the bracket, the engaging portion can be reliably formed on the bracket.
[0120]
  According to the invention of claim 9, in the above invention,Since the cover member covering the outer side of the bracket and the lower side of the shelf is provided, it is possible to effectively prevent the bracket and the shelf from moving to the left and right, and to prevent or minimize the distortion of the shelf. Thereby, the back-and-forth movement of the shelf becomes smoother and the usability is improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a showcase of the present invention.
FIG. 2 is a partially enlarged vertical side view of a showcase.
FIG. 3 is an enlarged perspective view of a portion of the display room with the shelf board removed.
FIG. 4 is a partially enlarged perspective plan view of a movable shelf.
5 is a cross-sectional view taken along the line AA in FIG.
FIG. 6 is a partially enlarged perspective view in a state where a shelf board is removed.
FIG. 7 is an exploded perspective view of a movable shelf.
FIG. 8 is a partially enlarged perspective plan view of a movable shelf.
9 is a cross-sectional view taken along the line BB in FIG.
FIG. 10 is a perspective view showing a state in which the lock member is accommodated in the holding portion.
FIG. 11 is a partial perspective view of the display chamber.
FIG. 12 is a wiring diagram of a heater for heating a movable shelf.
[Explanation of symbols]
  1 showcase
  3 Insulation wall
  4 side plate
  6 Back panel
  7 Top panel
  7A Back side
  9 Duct
  10 deck bread
  11 display room
  15 Cooler
  16 Upper cold air outlet
  25, 26, 27, 28 Movable shelf
  29 nails
  30 Bracket
  31 Slide rail
  31A Fixed side
  31B Movable side
  32, 35, 51, 66 screw
  33 shelves
  33A side wall
  36 shelf support
  37, 57, 89 Mounting hole
  39 Fixing member
  42, 63 engaging claw
  46, 79, 88, 98 Cosmetic screws
  47, 52, 64, 65, 67, 100, 103, 104 engagement hole
  50 Cover member
  50B Locking part
  53 Slide rail cover member
  55 Locking member
  56 Operation unit
  58 Hook
  61 Engagement part
  70 Cold air outlet under the shelf
  71 Damper member
  77 Damper rail members
  83, 84 Seal member
  87 Connecting members
  91, 92, 94, 95, 97 Rear panel member
  99 screw with collar
  101, 102 communication part
  H, H1, H2 Heating heater

Claims (9)

In a showcase comprising a display room in a heat insulating wall, and a plurality of upper and lower shelves for product display built in the display room,
A back panel for configuring a back duct that is located on the back of the display room and in which cool air rises between the heat insulating wall;
Constructed in the shelf, communicated with the rear duct at the rear end communication portion, and a shelf duct in which a cold air discharge port is configured at the front end,
An electric heater for heating the shelf ;
A damper member that opens and closes the inside of the rear duct on the upper side of the communication part ,
The shelf is installed so that the vertical position can be changed with respect to the support and has a damper rail member that slidably holds the damper member, and the wiring of the electric heater is accommodated in the damper rail member,
The showcase according to claim 1, wherein the rear panel is configured such that a vertical position of the communication portion can be changed in accordance with a change in the position of the shelf.   The showcase according to claim 1, wherein the back panel is composed of a plurality of panel members that are connected one above the other and overlap each other, and the mutual overlap amount can be changed. The showcase according to claim 1 or 2, wherein a sealing material is provided in the rear duct at a position corresponding to the rear end of the damper rail member . Open / close detection means for detecting that the damper member closed the rear duct, and control means for controlling energization to the electric heater,
3. The control device according to claim 1, wherein the control unit performs energization control to the electric heater when the damper member closes the rear duct based on the output of the open / close detection unit. Item 3 showcase. 5. The showcase according to claim 4, wherein the control unit performs energization control to the electric heater of a shelf in which the damper member closes the rear duct and a shelf located above the shelf . The electric heater of the shelf located at the uppermost stage is composed of at least two systems arranged at the front and rear, and the control means includes at least the electric heater of the shelf located at a lower stage than the shelf located at the uppermost stage. 6. The showcase according to claim 5, wherein energization of the electric heater in the rear system is prohibited when the cooling device for cooling the inside of the display chamber is operated while being energized . The showcase according to claim 6, wherein the control means energizes the electric heaters in the rear system during an off cycle of a cooling device for cooling the display room . In a showcase that is constructed by installing a shelf that can move in the front-rear direction via a slide rail on a pair of left and right brackets,
The shelf is provided with an elastic lock member located between the shelf and the bracket,
The lock member includes a front end operation portion and a hook portion formed at the rear of the operation portion, and the hook portion is constantly biased toward the bracket,
The bracket is provided with an engaging portion that is detachably engaged with the hook portion of the lock member when the shelf is pushed in, and the engaging portion is an insertion port formed in the bracket from the outside. A showcase comprising an engagement member that passes through the shelf and faces the shelf and is fixed to the bracket . 9. The showcase according to claim 8, further comprising a cover member that covers the outside of the brackets and the lower side of the shelf .

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