JP5405148B2 - Condensation prevention structure for storage - Google Patents

Description

  The present invention relates to a dew condensation prevention structure for a storage that opens and closes a storage chamber by sliding a sliding door.

  In stores such as grocery stores and convenience stores, showcases are used as storages for refrigerated or frozen storage of articles such as foods and beverages (see Patent Document 1). For example, as shown in FIG. 3, this showcase has a heat insulating box 14 in which a foam heat insulating material 12 such as urethane is filled between an interior plate and an exterior plate, and display items such as food and beverages. A storage room 18 is defined, and a machine room 20 in which a cooling device (not shown) including a compressor, a condenser, and the like is installed is provided below the heat insulation box 14. A rectangular opening 14a that opens to the front is opened at the front of the heat insulating box 14, and a sliding door that opens and closes the opening 14a is provided at the lower inner periphery and the upper inner periphery of the front opening 14a. Upper and lower rail members are provided to support 36 and 38 slidably in the left-right direction.

  In addition, a cooler 26 that is cooled by a refrigerant circulated through a refrigerant pipe connected to a cooling device installed in the machine room 20 is located above the heat insulation box 14 (above the storage chamber 18). A cooling chamber 22 to be accommodated is defined, and is accommodated through a suction port 30 formed on the front side of the cooling chamber 22 and a cold air outlet (not shown) formed on the rear side of the cooling chamber 22. The chamber 18 and the cooling chamber 22 are configured to communicate with each other. The air in the storage chamber 18 is sucked into the cooling chamber through the suction port 30 and blown to the cooler 26 by driving the blower fan 28 provided corresponding to the suction port 30. The cold air heat-exchanged with 26 is blown out from the cooling chamber to the storage chamber 18 through the cold air outlet. That is, the air circulates between the storage chamber 18 and the cooling chamber 22 so that the inside of the storage chamber 18 is kept at a constant low temperature.

JP 10-332250 A

  Incidentally, as shown in FIG. 5, between the slide doors 36 and 38 and the upper rail member 90 that slidably supports the upper ends of the slide doors 36 and 38 (FIG. 5 shows the upper rail member 90 and the slide door). 38), a gap is formed so that the sliding door 38 can be slid left and right when the storage chamber 18 is opened and closed. Further, since it is necessary to attach and detach the slide door 38 on the rail, a space 92 is formed between the upper end portion of the slide door 38 and the inside of the upper rail member 90. By lifting the slide door 38, the space 92 is formed. The slide door 38 can be attached and detached. For this reason, when negative pressure is generated by driving the blower fan 28, the external air enters the space or the gap (see the arrow in FIG. 5), and the inside of the upper rail member 90 is cooled to cause condensed water. It was. And the dew condensation water generated inside the upper rail member 90 is dripped by vibration or the like at the time of opening and closing the slide doors 36 and 38 and is attached to the product or the user, causing discomfort and dripping. There is a problem that the condensed water pollutes the floor surface.

  That is, the present invention has been proposed to solve these problems in view of the problems inherent in the prior art, and the dew condensation is generated inside the upper rail member that slidably supports the sliding door. An object of the present invention is to provide a dew condensation prevention structure for a storage that can be prevented.

In order to overcome the above-mentioned problems and achieve the intended purpose, a dew condensation prevention structure for a storage of the invention according to claim 1 of the present application,
A heat insulating box having an opening that opens to the front while the storage chamber is internally defined, and a suction port that is defined inside the heat insulating box and sucks air in the storage chamber into the opening of the heat insulating box And a cooling chamber in which a cool air outlet is formed on the rear side of the heat insulation box to blow cool air into the storage chamber, and the cooling chamber is disposed in the cooling chamber, and air is supplied from the suction port by driving. A blower fan that generates a negative pressure on the front side of the opening of the heat insulation box by sucking, an upper and lower rail member provided at an opening front end of the heat insulation box, and a slide along the upper and lower rail members to be arranged, in a reservoir having a sliding door for closing the opening openably
The gist is that a wind direction regulating plate that is inclined downward from the upper rail member side toward the inner side of the storage chamber is provided between the upper rail member and the suction port.
According to the dew condensation prevention structure for a storage according to claim 1, negative pressure is generated on the front side of the opening in the heat insulating box body by sucking the air in the storage chamber by the blower fan disposed in the cooling chamber. And since the negative pressure between the slide door and the suction port is reduced when the blower fan is driven, it is difficult to introduce external air between the slide door and the upper rail member, and the inside of the upper rail member produce a condensation can be prevented.

In the dew condensation prevention structure of the invention according to claim 2 of the present application, the upper rail member bulges toward the slide door on the rail rear surface facing the storage chamber side surface of the slide door. The gist is that the exit surface is formed and the sliding door is configured to be in sliding contact with the bulging surface.
According to the dew condensation prevention structure of the storage according to claim 2, since the amount of air flow between the slide door and the suction port is reduced when the blower fan is driven, it passes between the slide door and the upper rail member. It is difficult for external air to be introduced, and condensation is prevented from occurring inside the upper rail member.

The dew condensation prevention structure for a storage of the invention according to claim 3 of the present application is characterized in that the upper surface of the rail facing the slide door of the upper rail member is formed so as to be inclined downward toward the storage chamber side.
According to the dew condensation prevention structure of the storage according to the third aspect, the dew condensation generated inside the upper rail member can be quickly discharged, and the dew condensation water can be prevented from dripping from the upper rail member when the slide door is opened and closed.

  According to the dew condensation prevention structure for a storage according to the present invention, it is possible to prevent dew condensation water from being generated inside the rail of the slide door.

It is a vertical side view which expands and shows the opening upper front end of the showcase which concerns on the Example of this invention. It is a longitudinal cross-sectional view which shows the principal part of the upper rail member which concerns on an Example. It is a front view which shows a showcase. It is a vertical side view which shows the principal part in the arrangement | positioning position of the stopper in the upper rail member which concerns on an Example, and a door lift prevention member. It is a vertical side view which expands and shows the opening upper front end of the showcase which concerns on a prior art.

  Next, a dew condensation prevention structure for a storage according to the present invention will be described below with reference to the accompanying drawings with a preferred embodiment. The same members as those described in the prior art are indicated by the same reference numerals.

  As shown in FIGS. 1 to 4, the showcase 10 according to the embodiment is configured by filling a foam heat insulating material 12 such as urethane between an interior plate and an exterior plate, and a rectangular opening 14 a is formed in the front. The heat insulating box 14 is basically composed of an open heat insulating box 14 and a casing 16 on which the heat insulating box 14 is placed and fixed. A storage chamber 18 for accommodating various articles is defined inside the heat insulating box 14. . Inside the casing 16, a refrigeration apparatus including a compressor, a condenser, a fan for cooling the condenser, and the like, and a machine room 20 in which a control box (both not shown) are installed are defined. ing.

  A duct 24 that defines a cooling chamber 22 is provided between the heat insulation box 14 and the ceiling surface 14b of the heat insulation box 14, and the duct 24 includes a duct 24 that extends from the refrigerating apparatus. A cooler 26 to which the refrigerant is circulated and a blower fan 28 for circulating cold air are disposed. In the duct 24, a suction port 30 communicating with the storage chamber 18 is formed on the opening 14a side (that is, the front side) of the heat insulation box 14, and the rear wall portion side (that is, the rear side) of the heat insulation box 14 is formed. ) Is formed with a cold air outlet that communicates with the storage chamber 18, and the blower fan 28 is disposed at a position facing the inlet 30. That is, by driving the blower fan 28, the air in the storage chamber 18 is introduced into the cooling chamber 22 through the suction port 30, and is cooled by exchanging heat with the cooler 26 in the cooling chamber 22. The cool air is blown into the storage chamber 18 from the cold air outlet, whereby the storage chamber 18 in the heat insulating box 14 is cooled. A fan cover 34 is attached to the suction port 30 to prevent foreign matter from being sucked into the cooling chamber 22.

  A door frame 40 is attached to the inner periphery of the opening 14a in the heat insulation box 14, and the front slide door 36 and the rear slide door 38 slide in the width direction on the door frame 40 in the front-rear relationship. The opening 14a is configured to be supported and capable of opening and closing. The front and rear sliding doors 36 and 38 are provided with a transparent plate such as glass or an acrylic plate on a frame body 42 formed to have a size capable of closing substantially half of the opening 14a so that the inside can be visually confirmed. Configured to obtain. In the embodiment, the front slide door 36 closes the right half of the opening 14a, and the rear slide door 38 closes the left half of the opening 14a.

  The frame body 42 of the front and rear sliding doors 36, 38 is formed in a rectangular frame shape by connecting upper and lower horizontal frame portions 42a, 42a and left and right vertical frame portions 42b, 42b to each other. Then, with the front slide door 36 closing the right half of the opening portion 14a, the left (one) vertical frame portion 42b is positioned at the approximate center in the width direction of the opening portion 14a, and the rear slide door 38 opens. With the left half of the portion 14a closed, the right (one) vertical frame portion 42b is positioned approximately at the center in the width direction of the opening 14a. That is, in a state in which the opening portion 14a is closed by the slide doors 36 and 38, one vertical frame portion 42b of each slide door 36 and 38 overlaps front and rear at a substantially central position in the width direction of the opening portion 14a. It is configured (see FIG. 3).

  A door frame 40 provided in the heat insulation box 14 is provided at an upper edge of the opening 14a, and an upper rail member 44 that slidably supports upper ends of the front and rear sliding doors 36 and 38, and the opening. A lower rail member 46 that is provided at the lower edge of the opening of the portion 14a and slidably supports the lower ends of the front and rear sliding doors 36, 38; And is formed in a rectangular frame shape. As shown in FIG. 1 or FIG. 2, the upper rail member 44 is provided with three rising portions 62, 64, 66 standing on the top plate portion (rail upper surface portion) 60 so as to be spaced apart in the front-rear direction. Extends in parallel over the entire length of the opening 14a in the width direction. The front rising portion 62 and the middle rising portion 64 define a front rail portion 40A, and the middle rising portion 64 and the rear rising portion 66 define a rear rail portion 40B. Corresponding to 40B, the upper ends of the front and rear sliding doors 36, 38 are supported so as to be slidable in the width direction.

  The lower rail member 46 includes front and rear rail portions extending in the opening width direction of the heat insulating box 14 at positions vertically aligned with the front rail portion 40A and the rear rail portion 40B of the upper rail member 44. (Not shown) is formed, and the front slide door 36 is supported at the lower end portion by the front rail portion of the lower rail member 46 and at the upper end portion by the front rail portion 40A of the upper rail member 44. The rear slide door 38 is supported at the lower end portion by the rear rail portion of the lower rail member 46 and at the upper end portion by the rear rail portion 40B of the upper rail member 44. It can slide in the width direction along. Further, in the upper rail member 44 of the embodiment, a support portion 44 a fixed to the ceiling surface of the heat insulating box body 14 is formed on the top plate portion 60, and the support portion 44 a is attached to the ceiling surface 14 b of the heat insulating box body 14. It is fixed to the front end with screws or the like.

  Further, as shown in FIG. 1 or 2, the upper rail member 44 has a wind direction regulating plate 68 that inclines downward from the rear surface of the rear rising portion 66 toward the inner side of the warehouse. It is provided over. That is, the air direction restriction plate 68 is located between the rear rail portion 40B of the upper rail member 44 and the suction port 30 formed in the duct 24 that defines the cooling chamber 22, At the time of rotation, the air staying in the vicinity of the upper rail member 44 (rail portions 40A, 40B) is reduced from being sucked into the cooling chamber 22. Here, the lower end portion of the wind direction regulating plate 68 is formed to be positioned above the lower end portion of the upper rail member 44 (the rising portions 62, 64, 66). In the embodiment, each of the upper rail member 44 and the wind direction regulating plate 68 is integrally formed by resin extrusion molding.

  As shown in FIG. 1 or 2, the top plate portion 60 of the upper rail member 44 is inclined downward at a predetermined angle from the front rising portion 62 toward the rear rising portion 66 (from the opening portion 14a to the storage chamber 18 side). The dew condensation water adhering to the top plate portion 60 naturally flows downward along the inclination of the top plate portion 60. That is, the condensed water adhering to the front rail portion 40 </ b> A of the upper rail member 44 flows down along the top plate portion 60 toward the neutral rising portion 64, and travels along the front sliding door 36 that contacts the neutral rising portion 64. The condensed water that has flowed down and adheres to the rear rail portion 40B of the upper rail member 44 flows down toward the rear rising portion 66 along the top plate portion 60 and causes the rear slide door 38 that contacts the rear rising portion 66 to flow. It is supposed to flow down. In addition, a required space 74 is defined between the top plate portion 60 and the upper ends of the slide doors 36 and 38, and the slide doors 36 and 38 are lifted so as to be inserted into the space 74 side. 36 and 38 can be attached to and detached from corresponding rail portions 40A and 40B.

  Further, the upper rail member 44 is formed with a bulging portion 70 that protrudes toward the front rail portion 40A on a neutral rising portion 64 serving as a rear surface portion that defines the front rail portion 40A. The rear surface of the supported front slide door 36 (upper horizontal frame portion 42a) is in sliding contact with the bulging portion 70 of the neutral rising portion 64. Similarly, the upper rail member 44 has a rear rising portion 66 that is a rear surface portion defining the rear rail portion 40B, and a bulging portion 70 that protrudes toward the rear rail portion 40B. The rear surface of the rear slide door 38 (upper horizontal frame portion 42a) supported by the rail portion 40B is in sliding contact with the bulging portion 70 of the rear rising portion 66. Further, the upper rail member 44 is formed with a protrusion 72 projecting toward the middle rising portion 64 on the opposite surface side of the front rising portion 62 to the middle rising portion 64 over the entire length. A protrusion 72 projecting toward the rear rising portion 66 is formed over the entire length in the opening width direction of the heat insulating box 14 on the opposite surface side of the middle rising portion 64 to the rear rising portion 66. The front surfaces of the front and rear sliding doors 36, 38 supported by the rail portions 40A, 40B are in sliding contact with the corresponding ridges 72. In the embodiment, the ridges 72 are formed as two ridges on the front rising part 62 and the middle rising part 64 so as to be spaced apart from each other in the vertical direction, and each ridge 72 has a corresponding sliding door 36, 38. It is in sliding contact with the front.

  Here, the separation dimension from the protrusion 72 of the front rising part 62 to the bulging part 70 of the middle rising part 64 is set to be substantially the same as the front and rear dimensions of the upper end part of the front sliding door 36, and The separation dimension from the protrusion 72 of the rising part 64 to the bulging part 70 of the rear rising part 66 is set to be substantially the same as the front-rear dimension of the upper end part of the rear slide door 38. In other words, the front and rear width dimensions of the front and rear rail portions 40A and 40B coincide with the front and rear dimensions of the corresponding slide doors 36 and 38 between the protrusion 72 and the bulging portion 70, and are higher than the bulging portion 70. It is set to be wider than the front and rear dimensions of the corresponding sliding doors 36 and 38 on the side.

  Further, a stopper 76 as a buffer material is fitted and fixed to the left end portion of the front rail portion 40A and the right end portion of the rear rail portion 40B from the open end of each rail portion 40A, 40B, and the front rail portion A door lifting prevention member 80 is fitted and fixed to the right end portion of 40A and the left end portion of the rear rail portion 40B from the open ends of the rail portions 40A and 40B (see FIG. 4). FIG. 4 shows only the stopper 76 fitted and fixed to the left end portion of the front rail portion 40A and the door lifting prevention member 80 fitted and fixed to the left end portion of the rear rail portion 40B. Here, as shown in FIG. 4, the stopper 76 is formed in a block shape that matches the inner contour shape of the corresponding rail portion 40A, 40B, and corresponds to when the front and rear sliding doors 36, 38 are opened. This is in contact with the stopper 76.

  As shown in FIG. 4, the door lifting prevention member 80 includes a protrusion 72 positioned above the front and rear rail portions 40A and 40B, and a front wall (front rail portion) defining each rail portion 40A and 40B. 40A, the front rising portion 62, and the rear rail portion 40B, the middle rising portion 64), the top plate portion 60 that defines the upper surface of each rail portion 40A, 40B, and each rail portion 40A, 40B. Is formed in a block shape that matches the inner contour shape of the rear wall (the middle rising portion 64 in the case of the front rail portion 40A and the rear rising portion 66 in the case of the rear rail portion 40B), It is embedded in the space 74. That is, with the front and rear slide doors 36 and 38 opened, the upper right end portion of the front slide door 36 and the upper left end portion of the rear slide door 38 are positioned close to the lower surface of the corresponding door lifting prevention member 80. The upward movement of the slide doors 36 and 38 is restricted. Therefore, when the front and rear slide doors 36 and 38 are attached to and detached from the corresponding rail portions 40A and 40B, the slide doors 36 and 38 are inserted into the space 74 side at positions away from the corresponding door lifting prevention members 80. There is a need.

(Operation of Example)
Next, the effect | action of the dew condensation prevention structure of the storage which concerns on an Example is demonstrated. When the cooling operation of the showcase 10 is started, the blower fan 28 is driven to introduce the air in the storage chamber 18 into the cooling chamber 22 through the suction port 30 and exchange heat with the cooler 26 for cooling. The inside of the storage chamber 18 is cooled to a predetermined temperature by blowing the cold air cooled by the cooler 26 into the storage chamber 18 from the cold air outlet. That is, when the blower fan 28 is driven, a negative pressure is generated on the front side of the opening 14a in the heat insulating box 14 corresponding to the suction port 30 in the storage chamber 18, thereby causing the suction chamber 30 to enter the storage chamber 18. Air is sucked into the cooling chamber 22. Here, a wind direction regulating plate 68 extending between the upper rail member 44 and the suction port 30 is formed on the upper rail member 44 so as to be inclined downward from the upper rail member 44 side toward the inside of the warehouse. Therefore, the negative pressure generated on the front side of the wind direction regulating plate 68 (between the upper rail members 44) is reduced. Accordingly, as indicated by arrows in FIG. 1, the air from the storage chamber 18 to the cooling chamber 22 is sucked into the suction port 30 along the airflow direction restricting plate 68 from the back side of the storage chamber 18, and the rail portions 40A, 40B side. Thus, the amount of air sucked into the suction port 30 is reduced. Thus, by providing the wind direction regulating plate 68, the air flows into the storage chamber 18 through the gap formed between the rail portions 40A, 40B of the upper rail member 44 and the slide doors 36, 38. The amount of outside air can be reduced. Thereby, it can reduce that external air of high humidity is cooled in rail part 40A, 40B, and adheres as condensed water. Accordingly, the condensed water generated in the rail portions 40A and 40B when the slide doors 36 and 38 are opened and closed drops and adheres to the product or the user, causing discomfort, or the floor surface is soiled by the dropped condensed water. Can be prevented.

  Moreover, the said wind direction control board 68 is formed so that it may be located above the lower end part of the said upper rail part 40A, 40B. For this reason, in the state where the slide doors 36 and 38 are opened, the opening 14a of the heat insulating box 14 is not compressed by the wind direction regulating plate 68, and the product is taken in and out of the storage chamber 18 and the duct 24 is removed. The maintenance workability such as the above does not deteriorate. In the embodiment, since the wind direction regulating plate 68 is formed integrally with the upper rail member 44 by resin extrusion, the formation cost of the wind direction regulating plate 68 can be minimized.

  Furthermore, the middle rising portion 64 and the rear rising portion 66 are formed with bulging portions 70 that come into contact with the corresponding sliding doors 36 and 38, so that the bulging portion 72 of the front rising portion 62 protrudes from the ridge portion 72. The separation dimension to the portion 70 is set to be substantially the same as the longitudinal dimension of the upper end portion of the front slide door 36, and the separation dimension from the protrusion 72 of the middle rising portion 64 to the bulging portion 70 of the rear rising portion 66 is set. The front and rear dimensions of the upper end portion of the rear slide door 38 are set substantially the same. Therefore, there are gaps between the rear surface side of the front slide door 36 and the bulging portion 70 of the middle rising portion 64 and between the rear surface side of the rear slide door 38 and the bulging portion 70 of the rear rising portion 66. The amount of outside air introduced into the storage chamber 18 through the space between the front slide door 36 and the middle rising portion 64 and between the rear slide door 38 and the rear rising portion 66 is reduced. For this reason, it can reduce more effectively that high humidity external air cools in rail part 40A, 40B, and adheres as condensed water.

  In the upper rail member 44, a top plate portion 60 that defines the upper surfaces of the front and rear rail portions 40A and 40B that slidably support the slide doors 36 and 38 is inclined downward toward the rear. For this reason, the dew condensation water generated in the front and rear rail portions 40A and 40B is directed toward the middle rising portion 64 and the rear rising portion 66 that define the rear surface portions of the rail portions 40A and 40B along the top plate portion 60. Each flowing down. Here, since the bulging part 70 which contacts the corresponding sliding doors 36 and 38 is formed in the middle rising part 64 and the rear rising part 66, the dew condensation water which transmits the middle rising part 64 and the rear rising part 66 is formed. Flows down the sliding doors 36 and 38. That is, it is possible to prevent the condensed water generated in the rail portions 40A and 40B of the upper rail member 44 from dripping due to vibrations when the slide doors 36 and 38 are opened and closed, and it is adhering to the product and the user. It is possible to more effectively prevent the floor surface from being soiled by dew condensation water that has been held or dropped.

[Example of change]
The present application is not limited to the configuration of the above-described embodiment, and other configurations can be appropriately employed.
(1) In the embodiment, the wind direction restricting plate is formed over the entire length in the opening width direction of the heat insulating box, but is not limited to this, and the wind direction is partially formed in the opening width direction of the heat insulating box. You may comprise so that a control board may be located. In other words, if a wind direction restriction plate is formed corresponding to the front side of the air inlet that sucks the air in the storage chamber into the cooling chamber, the external air passes between the slide door and the upper rail member when the blower fan is driven. Since it becomes difficult to introduce, the same effect as the embodiment can be obtained.
(2) In the embodiment, the wind direction restricting plate is integrally molded with the upper rail member. However, the present invention is not limited to this, and the wind direction restricting plate is formed as a separate member from the upper rail member and bonded or screwed. You may make it fix with respect to an upper rail member by a stop.
(3) In the embodiment, an example in which a wind direction regulating plate is provided on the upper rail member is shown, but it is not necessarily fixed to the upper rail member, and a duct that defines a heat insulating box and a cooling chamber, and other storages. It is also possible to fix to the various members which comprise these as integral or another member.
(4) In the embodiment, the inclined lower end portion of the wind direction regulating plate is configured to be positioned above the lower end portion of the upper rail member. However, the inclined lower end portion of the wind direction regulating plate is located at the same horizontal position as the lower end portion of the upper rail member. Further, the lower end of the wind direction regulating plate may be formed so as to extend below the lower end of the upper rail member.
(5) In the embodiment, in the upper rail member, the bulging portion is formed on the rear surface portion of the rail portion, but it may be formed on the front surface portion of the rail portion.
(6) In the embodiment, a showcase is used as the storage. However, the present invention is not limited to a showcase, and may be a refrigerator, a freezer, or the like, as long as the opening of the heat insulating box is opened and closed by a sliding door. The dew condensation prevention structure of the storage which concerns on can be employ | adopted. Note that the number of sliding doors is not limited to two in front and rear, and the dew condensation prevention structure for a storage according to the present invention can also be adopted for a storage having one or three or more sliding doors.

14 heat insulation box, 14a opening, 18 storage room, 22 cooling room, 30 air inlet 36 front slide door (slide door), 38 rear slide door (slide door)
44 Upper rail member, 46 Lower rail member, 60 Top plate (rail upper surface)
64 Middle rising part (rail rear part), 66 Rear rising part (rail rear part)
68 Wind direction restriction plate, 70 bulge

Claims (3)

A heat insulating box (14) having an opening (14a) that is open inside and a storage chamber (18) is defined inside, and the heat insulating box (14) is defined inside the heat insulating box (14). ) Is formed on the side of the opening (14a) of the storage chamber (18), and air is blown into the storage chamber (18) on the rear side of the heat insulating box (14). A cooling chamber (22) formed with a cold air outlet to be discharged, and the heat insulating box disposed in the cooling chamber (22) by sucking air in the storage chamber (18) from the suction port (30) by driving. A blower fan (28) that generates negative pressure on the front side of the opening (14a) of the body (14), and upper and lower rail members (44, 46) provided at an opening front end of the heat insulating box (14), the slidably arranged along the top and bottom of the rail member (44, 46), in reservoirs with a sliding door (36, 38) for closing said opening (14a) freely opened and closed,
Between the upper rail member (44) and the suction port (30), there is provided a wind direction regulating plate (68) that is inclined downward from the upper rail member (44) side toward the back side of the storage chamber (18). Condensation prevention structure of storage characterized by   2. The dew condensation in the storage according to claim 1, wherein a rail upper surface portion (60) of the upper rail member (44) facing the slide door (36, 38) is inclined downward toward the storage chamber (18). Prevention structure.   The upper rail member (44) is directed toward the slide door (36, 38) on the rail rear surface (64, 66) facing the storage chamber (18) side surface of the slide door (36, 38). The dew condensation prevention structure for a storage according to claim 1 or 2, wherein a bulging surface (70) is formed so that the sliding door (36, 38) is in sliding contact with the bulging surface (70).

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