JP3369909B2 - Showcase lower frame structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower frame structure of a showcase, and more specifically, to a lower frame that supports a front door and a rear door that openably and closably closes a front opening of a heat insulating box. The present invention relates to a lower frame structure provided with a drain port for discharging condensed water or the like generated on a door or the like during a cooling operation of a showcase.

[0002]

[Prior Art] At grocery stores and convenience stores,
Showcases that store and display foods and beverages in a refrigerated state are preferably used. In this showcase, a storage room for display items such as foods and beverages is defined inside a heat insulating box formed by filling a foam heat insulating material such as urethane between an inner plate and an outer plate. In addition, a rectangular opening opening to the front is opened in the front part of the heat insulating box, and a front door and a rear door for opening and closing the opening are slidably supported in the lower inner circumference of the front opening. A lower frame is provided.

In the above-mentioned showcase, dew condensation occurs on the front door and the rear door due to the difference between the internal temperature of the storage chamber and the outside air temperature and the outside humidity during the cooling operation, which flows down the surface and collects on the lower frame. It was supposed to be. Therefore, a drainage port is formed in the lower frame, and the condensed water dropped on the front groove and the rear groove of the lower frame,
It was configured to be discharged outside the room through the drainage port. A drain pipe is connected to the drainage port of the lower frame, and the pipe is drawn into a machine room defined separately by a chassis in the lower part of the heat insulating box and is exposed to the upper part of the drain pan arranged in the machine room. The dew condensation water dropped on the lower frame is discharged to the drain pan via the drain port and the drain pipe.

[0004]

The drainage port is located inside the storage chamber with the front opening of the heat insulating box closed by the front door and the rear door. In this case,
As described above, the drain pipe connected to the drain port is drawn into the machine room.Therefore, hot exhaust air generated in the machine room or outside air sucked into the machine room from the outside will pass through the drain pipe and the drain port. There is a problem that the temperature of the room rises because it flows into the storage room. Further, the lower frame is set to be located below the inner bottom portion of the storage chamber. Therefore, when the drainage port becomes clogged with dust or dust and the drainage becomes impossible, the condensed water accumulated in the lower frame overflows to the outside, and it is pointed out that it is difficult to wet the front surface of the showcase or the installation floor surface. It

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks inherent in the above-mentioned conventional techniques, and is proposed to solve the above-mentioned drawbacks. An object of the present invention is to provide a lower frame structure of a showcase capable of preventing dew condensation water and the like from flowing out of the room even when the drainage port is clogged with dust or the like.

[0006]

In order to overcome the aforementioned problems and achieve the intended purpose, the lower frame structure of a showcase according to the present invention has a storage chamber internally defined and a front opening. Insulation box with an opening and below this insulation box
A machine room, a lower frame which is formed in the lower part of the inner circumference of the front opening and has grooves formed in the front and rear, rails which are respectively arranged in the front groove and the rear groove, and corresponding rails. A front door and a rear door that are slidably supported and open and close the front opening, and the drain port formed in the bottom plate of the lower frame is
In the showcase configured to communicate with the machine room ,
It is arranged in a rear groove of the lower frame and faces the lower side of the closed rear door, and a rear groove located on the opposite side of the storage chamber with a rear rail interposed therebetween, or a front groove of the lower frame is closed. The drainage port is formed only in the front groove located on the side opposite to the storage chamber with the front rail facing the lower side of the front door in the formed state interposed therebetween. Overcome the above-mentioned problems and achieve the intended purpose
Therefore, the lower frame structure of the showcase according to another invention of the present application
Is the front where the storage chamber is internally defined and opens to the front.
An insulating box body having an opening and a lower inner circumference of the front opening
And the lower frame, which has grooves formed in the front and back, and the front groove and
And the rails in the rear groove and the corresponding rails.
A front door that supports the ride freely and opens and closes the front opening
And a rear door, the lower frame
The rear rail that is located in the rear groove and faces below the rear door in the closed state.
Rear groove located on the opposite side of the storage chamber across the
Is located in the front groove of the lower frame and below the closed front door
Located on the opposite side of the storage chamber with the front rail facing the
Form a drain port on the bottom plate of the lower frame corresponding to the front groove,
Is the front rising part that defines the front groove and the rear groove,
It has a rising part and a rear rising part, and is on the front rising part.
The end faces above the inner bottom of the storage chamber, and
Above the front rising part for the middle rising part and the rear rising part
The introduction part is formed at a position lower than the end,
To do .

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a lower frame structure of a showcase according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments. As shown in FIGS. 1 to 3, the showcase 10 according to the embodiment includes an inner plate 12 and an outer plate 1.
4, a heat insulating box 18 formed by filling a foamed heat insulating material 16 such as urethane, and a chassis 20 on which the box 18 is placed.
Basically consists of The bottom surface of the chassis 20 is provided with a plurality of legs 24 for providing a predetermined space with the installation floor surface.
And a machine room 26 in which a refrigerating device 28, an electrical equipment box 30 and the like are housed is defined.

A cooler 66 to which a refrigerant is circulated and supplied from the refrigerating apparatus 28, a cool air circulating apparatus 68, a duct 70, etc. are arranged above the inside of the heat insulating box 18, and the cool air circulating apparatus 68 sends air. The storage chamber 60 defined inside the heat insulating box 18 is cooled by the cool air. Further, in the storage chamber 60, shelf posts 80, shelf receivers 82, shelf nets 84, fluorescent lamps 86 and lamp holders 88 for orderly aligning display items such as foods and beverages and making them more visible from the outside. Etc. are provided. The cool air sent from the cool air circulation device 68 is distributed all over the room through a cool air passage 72 defined by a large number of shelving nets 84 arranged in the storage chamber 60. (See Figure 3).

As shown in FIG. 3, a rectangular opening 18a which is open to the front is formed at the front of the heat insulating box 18. The portion defining the front opening 18a of the inner plate 12 and the outer plate 14 has a required clearance S as shown in FIG.
And the engaging portions 12a and 14a are formed at the open ends of the plates 12 and 14 that define the gap S. Then, in the gap S, the hook pieces 15a formed on the back surface side,
By attaching the connecting member 15 with 15a engaged with the engaging portions 12a, 14a, both plates 12, 14 are connected.

An upper frame 32, side frames 34, 34, and a lower frame 36 are attached to the inner periphery of the front opening 18a in a state of abutting on the connecting member 15, respectively.
In addition, the front door 22 and the rear door 23 are slidably supported in the left and right directions, respectively, so that the front opening 18a can be opened and closed. That is, the lower frame 36 has the same shape as that shown in FIGS.
As shown in FIG. 3, on the upper surface of the bottom plate 37 that abuts on the connecting member 15, three rising portions 46A, 46 spaced apart in the front-rear direction are provided.
B and 46C are erected, and each extends in parallel to the longitudinal direction. Further, the front rising portion 46A and the middle rising portion 4
The front groove 40A is defined between the rear groove 40A and the rear rising portion 46B, and the rear groove 40B is defined between the middle rising portion 46B and the rear rising portion 46C. The front rail 42 is arranged in the front groove 40A, the rear rail 43 is arranged in the rear groove 40B, and the front door 22 and the rear door 23 are arranged in the lower portion of the roller 4.
It is adapted to be slidably supported by the corresponding rails 42 and 43 via the rails 4. The rails 42 and 43 may be formed separately from the lower frame 36, or may be formed integrally with the lower frame 36.

The rising portions 46A, 46B, 46C
Restricts movement of the front and rear doors 22, 23 whose lower parts are housed in the front and rear grooves 40A, 40B in the front-rear direction.
It has a function to slide stably. Also the lower frame 36
As shown in FIG. 5, a step portion 38 lower than the inner bottom portion 60a of the storage chamber 60 by a required height is formed in the lower portion of the inner periphery of the front opening portion 18a in which the step portion 38 is connected. The upper surface of the bottom plate 37 in the lower frame 36 arranged via the member 15 is set to be lower than the inner bottom portion 60a.
Further, in the lower frame 36 arranged in the step portion 38, the upper ends of the respective rising portions 46A, 46B, 46C face higher positions than the inner bottom portion 60a, and the upper end of the front rising portion 46A is different from the other rising portions. It is set to face a position higher than the upper ends of 46B and 46C. Thereby, when the drainage port 90 described later is clogged and the condensed water or the like is accumulated on the lower frame 36,
The dew condensation water or the like is configured to flow into the storage chamber 60 side before it overflows to the outside.

Now, the lower structure of the doors 22 and 23 will be described in detail. Since the lower structures of the front door 22 and the rear door 23 are the same, the rear door 23 will be described as an example. As shown in FIG. 5, a concave groove 75 that opens downward is formed in the lower portion of the rear door 23 over the entire length in the longitudinal direction, and a plurality of grooves (usually two) are spaced apart in the longitudinal direction in the concave groove 75. Rollers 44 are rotatably supported by brackets 76, respectively. The roller 44 is housed in the groove 75, and when the roller 44 is placed on the rear rail 43,
The lower portion 77 of the rear door 23 is configured to be housed in the rear groove 40B for a required length. Further, the thickness dimension of the rear door 23 is set to be smaller than the width dimension of the rear groove 40B (distance between the middle rising portion 46B and the rear rising portion 46C), and the lower portion 77 of the rear door 23 is accommodated in the rear groove 40B. Thus, a slight gap is defined between the front and rear surfaces of the lower portion 77 and the middle rising portion 46B and the rear rising portion 46C. Then, the outside air flowing out from a drain port 90 described later is discharged to the outside through the gap between the front surface of the lower portion 77 and the neutral rising portion 46B, and the outside air flowing into the groove 75 is pulled to the outside and discharged to the outside. I am trying to make it possible. Further, on the rear surface of the lower portion 77, the rear rising portion 46C
Piece 78 that extends obliquely toward the room side close to the upper end of the
However, it is formed over the entire length of the rear door 23, and the regulation piece 78 can also regulate the inflow of outside air into the storage chamber 60.

A hollow portion 49 extending in the longitudinal direction is formed in a front rising portion 46A of the lower frame 36 which faces the front side of the front door 22, and both longitudinal ends of the hollow portion 49 have left and right side frames 34. It is configured such that the generation of dew condensation can be suppressed by enhancing the heat insulating property of the front rising portion 46A by the air layer which is sealed by 34, 34 and is enclosed therein. The lower frame 36 is preferably made of synthetic resin or the like having a low thermal conductivity. The front rising part 46
An inclined portion 51 is formed on the upper end of A, and the rising portion 46A
Condensation water that has formed on the surface of the is quickly flowed down.

As shown in FIGS. 4 and 5, the lower frame 36 is
A drainage port 90 is formed on the rear groove 40B side of the bottom plate 37 and on the front side (on the side of the neutral rising portion 46B) partitioned by the rear rail 43, and the drainage port 90 is a drain pipe 92.
Further, it is connected to a drain pan 96 arranged in the machine room 26 via a drain hose 94. In addition, drainage port 9
The formation position of 0 corresponds to the gap S defined between the open ends of the inner plate 12 and the outer plate 14 as shown in the figure, and the drain pipe 92 connected to the drain port 90 is arranged. For this reason, the hole forming process performed on the heat insulating box body 18 is required to be performed only at one place of the connecting member 15 and the exterior plate 14.

At the neutral rising portion 46B of the lower frame 36,
As shown in FIG. 6, notches 56 communicating the front and rear grooves 40A, 40B are formed at a plurality of longitudinal positions, and the notches 5 also communicating with the rails 42, 43 in the front-rear direction.
7 are formed at a plurality of positions in the longitudinal direction. That is,
Condensation is formed on the front surfaces of the front door 22 and the rear door 23, and the lower frame 36
Condensed water dropped on both grooves 40A, 40B of the notch 56,
The drain pan 9 is led to the drain port 90 through 57.
It is discharged to 6. In addition, instead of the notches 56 and 57, the through hole 54 is provided with the neutral rising portion 46B and the front and rear rails 42,
43 (only the neutral rising portion 46B side is shown) may be provided so that the condensed water is guided to the drain port 90 through the through hole 54. It is also possible to use the notches 56 and 57 and the through hole 54 together. The height level of the lower end of each of the cutouts 56, 57 and the through hole 54 is preferably the same as the height level of the bottom surface of the front groove 40A and the rear groove 40B. The notches 57 of the rails 42 and 43 and the notches 56 of the neutral rising portions 46B are formed so as to be shifted in the longitudinal direction so as not to be aligned in the front-rear direction, and the outside air is stored in the storage chamber 60.
It is configured so that it can be suppressed from flowing into.

The drain port 90 is located near the center of the lower frame 36 in the moving direction of the rear door 23 (front door 22), and the rear door 23 closes the front opening 18a of the heat insulating box 18. In the state (see FIGS. 3 and 7), the rear door 23 is positioned below the rear door 23 and is substantially covered. That is, by covering the drainage port 90 with the rear door 23, it is possible to prevent the drainage port 90 from being clogged with dust or dust in the outside air.
The drainage port 90 does not have to be formed at the position where the rear door 23 covers the front opening 18a even when the drainage port 90 is fully opened. This is because when the display items stored in the storage chamber 60 are taken out, it is rare that the rear door 23 is fully opened, and only the necessary area is opened and taken out. Further, as shown in FIG. 5, when the roller 44 disposed on the rear door 23 is placed on the rear rail 43, a constant space is defined between the drain port 90 and the lower surface of the rear door 23. Thus, even if the drain port 90 is covered with the rear door 23, the dew condensation water dropped on the lower frame 36 can be surely discharged. The bottom surfaces of the grooves 40A and 40B may be provided with a slope that inclines downward toward the position where the drainage port 90 is formed.

[0017]

Next, the operation of the lower frame structure of the showcase according to the embodiment will be described. When the cooling operation of the showcase 10 is started, the storage chamber 60 is cooled by the refrigerating device 28, the cooler 66, the cool air circulating device 68 and the like. Due to conditions such as the temperature difference between the outside air temperature and the inside temperature and the outside humidity, when the outside (front side) of the front and rear doors 22 and 23 becomes lower than the dew point temperature, dew condensation starts and occurs on the front surface of the doors 22 and 23. Condensed water flows down and the grooves 40A, 40B in front of and behind the lower frame 36
Drop on. The joint portion between the lower frame 36 and the side frames 34, 34 is subjected to a caulking process, and the condensed water has a groove 40A,
It does not leak from the end side of 40B in the longitudinal direction.

Since the notched portions 56, 57 are formed in the neutral rising portion 46B of the lower frame 36 and the rails 42, 43, the dew condensation water accumulated in the grooves 40A, 40B will not pass through the notched portions 56, 57. It is led to the drainage port 90 provided in the rear groove 40B through the drainage port 90 and discharged from the drainage port 90. The condensed water is collected in the drain pan 96 via the drain pipe 92 and the drain hose 94.

The drain port 90 has the drain pipe 92.
Also, it communicates with the machine room 26 via a drain hose 94. However, as shown in FIG. 5, the drainage port 90 faces the outside of the storage chamber 60 opposite the storage chamber 60 with the rear rail 43 of the rear groove 40B of the lower frame 36 interposed therebetween. The rear rail 43 and the rear door 23 covering the drain port 90 prevent the exhaust air and the outside air sucked into the machine chamber 26 from flowing into the storage chamber 60 via the drain port 90, which affects the indoor temperature. Can be prevented. That is, most of the warm exhaust air and the outside air flowing out from the drainage port 90 are discharged to the outside from the gap between the front surface of the lower portion 77 and the neutral rising portion 46B in the rear door 23 as shown in the figure. Although a part of the hot exhaust air or the outside air flows into the recessed groove 75 of the rear door 23,
The warm exhaust gas or the like is pulled by the action of the exhaust gas discharged to the outside through the gap with the neutral rising portion 46B and discharged to the outside.
Moreover, since the regulating piece 78 formed on the rear surface of the lower portion 77 is close to the upper end of the rear rising portion 46C, the regulating piece 78 is formed.
Also regulates the inflow of warm exhaust into the storage chamber 60.

In the drainage port 90, the rear door 23 has the heat insulation box 1
8 in the state that the front opening 18a is closed.
The rear door 2 is covered with the rear door 2 even when the rear door 23 is normally opened when the display item is taken out from the storage room 60.
It is formed at a position covered by 3. Further, since a space is always defined between the lower surface of the rear door 23 and the drainage port 90, the drainage port 90 of the condensed water dropped in both the grooves 40A and 40B is formed.
It is possible to reliably prevent the situation in which the drainage port 90 is clogged with dust or dirt in the outside air and the dew condensation water cannot be discharged, while ensuring the reliable discharge from the drainage port.

Here, if some kind of foreign matter enters the drainage port 90 and becomes clogged, dew condensation water or the like is sequentially accumulated in the front groove 40A and the rear groove 40B of the lower frame 36. As described above, since the upper end of the front rising portion 46A is set to be higher than the upper ends of the middle rising portion 46B and the rear rising portion 46C, the water level of the dew condensation water accumulated in the lower frame 36 is set to the middle rising portion 46B. And the rear rising portion 46C
Even if it is the same as the upper end of the front rising part 46A, it does not reach the upper end of the front rising part 46A and overflows to the storage chamber 60 side. That is, even if the drainage port 90 becomes clogged and the discharge cannot be performed,
Since the condensed water or the like accumulated in the lower frame 36 does not overflow to the outside of the room, it is possible to prevent the front surface of the showcase and the installation floor surface from getting wet.

Since the rear rising portion 46C rises above the inner bottom portion 60a of the storage chamber 60, it is possible to prevent the display items such as beer bottles placed on the inner bottom portion 60a from falling. Yes (see Figure 4). Further, since the bottom plate 37 of the lower frame 36 is set to be lower than the inner bottom portion 60a, the entire display item placed on the inner bottom portion 60a can be clearly seen without being obstructed by the lower frame 36.
Furthermore, since the drainage port 90 is set so as to correspond to the gap S defined between the interior plate 12 and the exterior plate 14 in the heat insulation box 18, the drain connected to the drainage port 90. It is possible to reduce the number of man-hours required for drilling to attach the pipe 92.

[0023]

[Modification] FIGS. 8 to 10 show modifications of the lower frame structure. Since the basic structure is the same as that of the above-described embodiment, only different parts will be described.
In the lower frame 36 shown in FIG. 8, the upper end heights of the three rising portions 46A, 46B, 46C formed on the lower frame 36 are set to be the same, and the middle and rear rising portions 46B, 46 are formed.
At a position lower than the upper end of the front rising portion 46A in C,
A through hole 58 is provided as an introduction portion. That is,
In this modified example, the dew condensation water or the like accumulated in the lower frame 36 due to the clogging of the drainage port 90 is configured to flow into the storage chamber 60 via the through hole 58 without overflowing to the outside of the room. It should be noted that a cutout can be adopted as the introduction portion instead of the through hole 58. Further, the drainage port 90 has the rear groove 40.
When it is formed in B, it is possible to omit the through hole 58 as the introduction portion in the neutral rising portion 46B.

In the lower frame 36 shown in FIG. 9, the upper end height of the rear rising portion 46C is set to the same level as the inner bottom portion 60a of the storage chamber 60, and the drain port 9
The dew condensation water or the like that has flowed into the storage chamber 60 side due to the clogging of the drainage port 0 is removed after the clogging of the drainage port 90 is cleared.
It is configured to be discharged to the outside via the. In this modification, beverages spilled in the storage chamber 60, water used for cleaning, and the like can also be discharged through the drain port 90 formed in the lower frame 36.

Next, in the lower frame 36 shown in FIG. 10, a through hole 55 is formed in the rear rising portion 46C, and a cutting tool such as a drill is inserted through the through hole 55 into the middle rising portion 46B. The hole 54 is configured to be drilled. Further, as shown in the drawing, the through hole 55 of the rear rising portion 46C is formed at substantially the same height position as the inner bottom portion 60a of the storage chamber 60, and like the modification of FIG. The water can be discharged through the drainage port 90 of the lower frame 36. A cutout may be formed instead of the through hole 55, and the through hole 54 of the neutral rising portion 46B may be formed through the cutout, or the water on the storage chamber 60 side may be guided to the lower frame 36. Good.

In the above-described embodiment, the case where the drain port is formed at the position covered with the closed rear door in the rear groove of the lower frame has been described, but the present invention is not limited to this, and the front groove is not limited thereto. It can also be formed. That is, FIG. 11 shows a region in which the drainage port 90 can be formed with diagonal lines, and the position in front of the rear door 23 which is not covered by the front door 22 in the closed state in the case of the front groove 40A. , Or below the front door 22 in the closed state and in front of the front rail 42, to prevent warm exhaust of the machine room 26 or outside air from flowing into the storage room 60 from the drain port 90. You can Furthermore, it is also possible to adopt a configuration in which drain holes are formed in both the rear groove and the front groove. The height of the upper end of the middle rising portion may be set lower than the upper ends of the front and rear rising portions.

[0027]

As described above, according to the lower frame structure of the showcase according to the present invention, the drain port formed in the lower frame faces the outdoor side opposite to the storage chamber with the door sandwiched therebetween. ,
It is possible to prevent outside air , hot exhaust air in the machine room, and the like from flowing into the storage room from the drain port, and it is possible to reliably discharge the condensed water and the like accumulated in the lower frame without affecting the room temperature. Further, since the drainage port is covered by the door, the drainage port is not clogged with dust or dust in the outside air, and the condensed water or the like dropped on the lower frame can be reliably discharged.

Since the upper end height of the front rising part of the lower frame is set higher than the upper end heights of the middle rising part and the rear rising part and the inner bottom part of the storage chamber, the drainage port is temporarily clogged and the condensed water is condensed. Even if you can not discharge such as
Condensed water or the like accumulated in the lower frame does not overflow to the outside of the room, and it is possible to prevent the front surface of the showcase or the installation floor surface from getting wet. By forming the introduction portion at a position lower than the upper end of the front rising portion in the middle rising portion or the rear rising portion, it is possible to prevent dew condensation water and the like accumulated in the lower frame from overflowing to the outdoor side. Further, since the position of forming the drainage port is set so as to correspond to the gap defined between the interior plate and the exterior plate, it is possible to reduce the man-hours required for making holes in the interior plate or the exterior plate. It is possible to reduce the manufacturing process and cost.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing a showcase adopting a lower frame structure according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of the showcase of the embodiment.

FIG. 3 is a cross-sectional plan view of the showcase of the embodiment.

FIG. 4 is a side view showing a main part of the showcase of the embodiment in a vertical section.

FIG. 5 is a side view of an essential part showing a disposing portion of a lower frame according to the embodiment with a part thereof cut away.

FIG. 6 is a perspective view of a main part showing a lower frame of the embodiment.

FIG. 7 is a cross-sectional plan view of essential parts of the showcase showing the formation position of the drainage port according to the embodiment.

FIG. 8 is a side view of an essential part showing a partially broken lower frame structure according to a modification.

FIG. 9 is a side view of an essential part showing a lower frame structure according to another modification with a part thereof broken away.

FIG. 10 is a side view of an essential part showing a lower frame structure according to still another modification with a part thereof broken away.

FIG. 11 is an explanatory diagram showing a region where a drainage port can be formed with respect to the lower frame.

[Explanation of symbols]

12 interior plate, 14 exterior plate, 16 foam insulation, 18 insulation box 18a front opening, 22 front door, 23 rear door, 36 lower frame, 40A front groove 40B rear groove, 42 front rail, 43 rear rail, 46A
Front rising part 46B Middle rising part, 46C Rear rising part, 58 Through hole (introduction part) 60 Storage chamber, 60a Inner bottom part, 90 Drainage port, S gap

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigetoki Ishiguro 3-16, Hoshizaki Electric Co., Ltd., South Building, Sakaemachi, Toyoake City, Aichi Prefecture (56) References: Kaihei 7-16661 (JP, U) 55-67985 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F25D 21/14

Claims (5)

(57) [Claims] 1. A heat-insulating box body (18) having a front opening (18a) having a storage chamber (60) defined therein and opening forward.
A machine room (26) provided below the heat insulating box (18) and a groove (40
(A, 40B) formed lower frame (36), rails (42, 43) respectively arranged in the front groove (40A) and the rear groove (40B), and slide to the corresponding rail (42, 43) Being freely supported, the front opening (18
and a front door (22) and a rear door (23) for opening and closing the a), the lower
The drainage port (90) formed in the bottom plate (37) of the frame (36) is the machine room.
In the showcase configured to communicate with the (26), the rear rail (43) disposed below the rear groove (40B) of the lower frame (36) and facing below the closed rear door (23) is provided. A rear groove (40B) or a lower frame (36) located on the opposite side of the storage chamber (60) from both sides.
Only in pre-groove is disposed in (40A) in the housing chamber across the rail (42) before facing below the front door of the closed state (22) (60) and the front located opposite the groove (40A) lower frame structure of the showcase, characterized in that the formation of the water outlet (90) on. 2. The lower frame (36) includes a front groove (40A) and a rear groove.
(40B) to define the front rising part (46A), the middle rising part (46A)
B) and a rear rising portion (46C), the front rising portion
The show according to claim 1, wherein the upper end height of the (46A) is set higher than the upper end heights of the middle rising part (46B) and the rear rising part (46C) and the inner bottom part (60a) of the storage chamber (60). Bottom frame structure of the case. 3. The storage chamber (60) is internally defined and forward
An insulating box body (18) having a front opening (18a) that is opened to
The front opening (18a) is provided in the lower part of the inner circumference to form a groove in the front and rear.
(40A, 40B) forming a lower frame (36), the front groove (40A) and
Corresponds to the rails (42, 43) arranged in the rear groove (40B), respectively.
It is slidably supported by rails (42, 43) and is open at the front.
A seat provided with a front door (22) and a rear door (23) for opening and closing (18a).
In the case, it is placed in the rear groove (40B) of the lower frame (36) and closed.
The rear rail (43) facing below the rear door (23) is sandwiched between the above-mentioned storage
Rear groove (40B) or bottom frame (36) opposite chamber (60)
Of the front door (22) which is placed in the front groove (40A) in the closed state.
Opposite the storage chamber (60) with the front rail (42) facing downwards
Bottom plate (37) of bottom frame ( 36) corresponding to front groove (40A) located on the side
The lower frame (36) forms a drainage port (90) in the front rising part (46A), a middle rising part (46B) and a rear rising part that define the front groove (40A) and the rear groove (40B). (46C), the upper end of the front rising portion (46A) faces above the inner bottom portion (60a) of the storage chamber (60), the middle rising portion (46B) and the rear rising portion (46C). lower frame structure of the showcase, characterized in that it is formed the introduction part (58) at a position lower than the upper end of the front rising portion (46A) in the. 4. The drain port (90) is a front door of the lower frame (36).
(22) and the rear door (23) near the center of the moving direction, and the rear door
The lower frame structure of the showcase according to any one of claims 1 to 3, which is provided at a position covered by the (23) or the front door (22). 5. The heat insulation box body (18) is constituted by filling a heat insulation material (16) between an inner plate (12) and an outer plate (14), and A gap (S) is defined in the lower inner periphery of the front opening (18a) in which the lower frame (36) is arranged, and the end of the inner plate (12) and the outer plate (14) are separated from each other. The gap (S) in the frame (36)
The lower frame structure of the showcase according to any one of claims 1 to 4, wherein the drainage port (90) is formed at a position corresponding to.