JPH09178331A - Low temperature show case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly treat the condensed water in a low temperature show case provided with a sliding door. SOLUTION: This low temperature show case 1 is provided with a rail 63 provided on a lower edge of an opening 64 in a body and sliding doors 73A, 73B to cover the opening 64 in an openable/closable manner, and also provided with a plurality of rail side water discharge ports 65 on a lower end part of the rail 63, a water receiving member 79 of a container shape which is correspondingly arranged below the rail side water discharge ports 65, and a water reception side water discharge port 84 formed in the water receiving member 79 and communicates with the body side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low temperature showcase in which an opening is opened and closed by a sliding door type door.

[0002]

2. Description of the Related Art Conventionally, a low temperature showcase of this kind is provided with an inside surrounded by a transparent wall such as glass as shown in Japanese Utility Model Publication No. 61-40212 (A47F3 / 04). The opening formed on one surface (rear surface) is openably and closably closed by a sliding sliding door type transparent door made of a glass plate or a resin plate such as acrylic.

These sliding door type doors are movably supported by a plurality of rails attached to the lower edge of the opening, but when the inside of the refrigerator is cooled, the sliding door type door is exposed to the outside air. Condensation occurs. This condensed water flows down along the outer surface of the door and flows into the rail, but in order to prevent it from overflowing to the outside from this rail, many drain holes are bored in the rail, It was designed to discharge condensed water from the mouth to the main body.

[0004]

However, in the prior art, a large number of drainage hoses on the main body side were provided corresponding to the respective drainage ports of the rail, so that the problem of obstructing the work of filling the main body with a heat insulating material or the like occurred. Was there. In addition, the rails are usually thin and may have a pointed downward shape, especially when the door is tilted and supported.Therefore, the periphery of the drainage port located at the lower end is burred to drainage performance. Improve (condensation water drips directly under the drain)
There was also a problem that the work became extremely difficult.

Further, in order to prevent the dew condensation water from leaking from the end of the rail, the gap has been conventionally sealed with silicon or the like, but if the seal is incomplete, or
If the seal cracks due to deterioration over time due to the opening and closing of the door, leakage of condensed water will occur. On the other hand, if the amount of this seal is too large, there is a problem that the door will not be completely closed, and improvement has been desired.

The present invention has been made to solve the above-mentioned conventional technical problems, and makes it possible to smoothly perform the treatment of dew condensation water in a low temperature showcase having a sliding door type door. With the goal.

[0007]

A low temperature showcase according to the present invention comprises a rail provided at a lower edge of an opening of a main body, and a sliding door type door movably supported by the rail to openably and closably close the opening. A plurality of rail-side drainage ports formed at the lower end of the rail, a container-shaped water receiving member disposed below the rail-side drainage ports, and the water receiving member, It is provided with a water receiving side drain port communicating with the main body side.

According to the present invention, a container-shaped water receiving member is disposed below a plurality of rail-side drainage ports formed at the lower end of the rail for supporting a sliding door, and the water receiving member has a main body. Since the water receiving side drain port communicating with the side is formed, the condensed water flowing down along the door once flows into the water receiving member from the rail side drain port, and after receiving it, this water receiving side drain port Can be discharged from the main body side.

Therefore, it is possible to reduce the number of water outlets on the water receiving side formed in the water receiving member more than the number of the drainage outlets on the rail formed on the rail. The adverse effect can be suppressed to the minimum. Further, it is possible to avoid the inconvenience that dust from the rail-side drainage port directly flows into the main body side and becomes clogged, and the water receiving member, which is wider than the rail, is easily burred. Therefore, it is possible to improve the productivity of the entire low temperature showcase as a whole.

In addition to the above, the low temperature showcase of the invention of claim 2 is provided with a heater in the water receiving member.
According to the invention of claim 2, since the water receiving member is provided with the heater, it is possible to eliminate the disadvantage that the condensed water received by the water receiving member is re-frozen.

In addition to the above inventions, a low temperature showcase according to a third aspect of the present invention has at least the entire lower portion of the rail housed in a water receiving member. According to the invention of claim 3, since the entire lower portion of the rail is housed in the water receiving member, it is not necessary to apply a sealing material at the end of the rail, which has been conventionally required. It is possible to prevent leakage and deterioration of the opening / closing property of the sliding door.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a perspective view of a low temperature showcase 1 of the present invention, FIG. 2 is a vertical side view of the low temperature showcase 1, FIG. 3 is a vertical side view of an upper portion of the low temperature showcase 1, and FIG. FIG. 5 is an enlarged vertical side view of the two openings.
Shows the same exploded perspective views, respectively.

In each drawing, a low temperature showcase 1 is used for displaying and storing ice cream or the like in a convenience store or the like, for example, and the main body is composed of a horizontally elongated rectangular heat insulating box 2 opened upward. ing. The heat insulating box 2 includes a metal outer box 3 and the outer box 3
Inner box 6 made of metal, which is incorporated at intervals in the inside, breaker 4 made of resin that connects the upper ends of both boxes 3 and 6, and in-situ foaming method between these boxes 3 and 6 and breaker 4. And a heat insulating material 7 such as expanded polyurethane.

Duct plates 8 and 9 are attached to the inside of the front and rear surfaces of the inner box 6 at intervals, and the upper ends of the duct plates 8 and 9 are bent inwardly. Furthermore,
A bottom plate 11 is removably installed between the lower ends of the duct plates 8 and 9, whereby a series of ducts 12 standing up and down from the bottom surface is formed inside the inner box 6, and the duct plates 8 and 9 are also provided. A storage chamber 22 is defined inside the bottom plate 11. On the other hand, the bottom wall 13 of the heat insulating box 2 has a stepped shape having a lower portion 13A in the front part and a higher portion 13B in the rear part, and the bottom plate 11 is located above the higher portion 13B.

A drain pan 14 is provided on the upper surface of the lower portion 13A, and a drain hole 16 communicating with the outside of the heat insulating box 2 is formed at the lowest position of the drain pan 14. The duct 12 is provided on the drain pan 14.
A horizontally long plate fin type cooler 17 is disposed inside the fan case 18 provided in front of the cooler 17.
A blower 19 composed of a suction-type propeller fan is attached inside. In addition, 20 is a temperature sensor attached to the cool air outflow side of the cooler 17, and 25 is the duct plate 9
It is a straightening plate installed in the duct 12 at the center of the.

A high-level portion 13B on the rear side of the cooler 17
The stepped portion of the lower portion 13A is formed as an inclined surface 13C so that the upper portion thereof is separated from the cooler 17. The upper end of the duct plate 9 is a discharge port 9A, the upper end of the duct plate 8 is a suction port 8A, and wind direction plates 21, 21 which are curved inward are attached to the discharge port 9A at predetermined intervals. On the other hand, kick plates 26, 26 having a large number of through holes 24, ... Are attached to the front and rear of the lower end of the heat insulating box 2, and are located between the kick plates 26, 26 below the heat insulating box 2. A machine room 27 is configured. Then, in the machine room 27 located below the high-order portion 13B, a compressor (not shown) that constitutes a well-known refrigeration cycle together with the cooler 17, a condenser 29, a condenser blower 31, and an electrical equipment box (see FIG. (Not shown) and the like, and the rear surface of the machine room 27 is closed by a plurality of panels 36 to 38 so as to be openable and closable. Further, a plurality of slits 39 ... There is.

When the compressor and the blowers 19 and 31 are operated, the cool air cooled by the cooler 17 is inclined to the inclined surface 13C.
Is blown backward from inside the duct 12 and is discharged from the discharge port 9A at the upper end of the duct plate 9 toward the upper part of the storage chamber 22. The cool air that has circulated in the storage chamber 22 is sucked into the duct 12 through the suction port 8A at the upper end of the duct plate 8, and the blower 19
A circulation (represented by a broken line arrow in FIG. 2) is performed to return to the. As a result, the inside of the storage chamber 22 is cooled to a predetermined freezing temperature such as -20 ° C.

On the other hand, side plates 41, 41 made of a thick plate of transparent acrylic resin are erected on both sides of the opening of the heat insulating box 2. The side plates 41, 41 have a substantially mountain shape in which the upper portions of the front and rear sides 41A, 41B are inclined so that they are close to each other, and a stainless steel top plate 42 as a cover plate is also made of stainless steel between the upper ends thereof. It is screwed from the side through the decorations 43, 43 of the.

The top plate 42 has a mountain-shaped cross section along the shape of the side plates 41, 41, and the lower surface of the top plate 42 is provided with front and rear stainless steel upper support plates 44, 44, which are also made of stainless steel. A plate 46 is attached. The upper support plates 44, 44 are spaced apart from the lower surface of the top plate 42, and the tips of the upper support plates 44, 44 are inclined downwards substantially along the inclinations of the front and rear sides 41A, 41B of the side plate 41, respectively. The part faces the upper support plate 44 with a space.

The front and rear side surfaces 46A, 46A of the reflecting plate 46
Is inclined downward toward the outside with a space below the upper support plates 44, 44, and the lower surface thereof is bent in a crank shape to form a recess 47 opened downward and a recess 4 opened upward.
8 are arranged side by side. A horizontally long fluorescent lamp 51 inserted into a jacket 49 is housed in the recess 47 opened downward, and the fluorescent lamp 51 is turned on in the recess 48 opened upward. Ballast 5
2 are provided. Also, both upper support plates 44, 4
A plurality of through holes (long holes) 53 ... Are bored in the upper end base portion of 4, ie, the mounting portion to the top plate 42, whereby the inside of the recess 48 in which the ballast 52 is housed is formed. Air communicated with the upper support plates 44, 44, and the air heated by the ballast 52 flows out to the upper surfaces of the upper support plates 44, 44 as indicated by arrows in FIG.

On the other hand, inside the front and rear opening edges of the heat insulating box 2, upper wind direction plates 56, 56 located above the suction port 8A and the discharge port 9A are attached to the inner surface of the breaker 4, respectively. On the upper side of the plate 56, upper plate 57 made of stainless steel is combined with a space therebetween.
On the other hand, cylindrical drain sockets 77, 77 having upper and lower openings are attached to both sides of the breaker 4 in the longitudinal direction of the heat insulating box 2 and extend downward. A drain hose 78 is connected to the lower end of the drain socket 77 before filling the heat insulating material 7 and is embedded in the heat insulating material 7 when the heat insulating material 7 is foam-filled. Then, on the breaker 4 in the longitudinal direction, a water receiving member 79 made of stainless steel that is long in the left and right is screwed to the outer box 3 of the heat insulating box 2 via an L-shaped mounting plate 82.

As shown in FIG. 5, the water receiving member 79 is in the shape of a rectangular container having an opening 83 on the upper surface thereof, and water is provided on both sides of the bottom surface 79A thereof so as to correspond to above the drain sockets 77, 77. Receiving side drain ports 84, 84 are provided. The bottom surface (outer surface) of the bottom surface 79A of the water receiving member 79
An electric heater 86 is attached to the. A stainless steel rail 63 is inserted into the water receiving member 79 through the opening 83. The rail 63 is formed into a substantially W-shape by welding three stainless steel plates, whereby the side surfaces 46A, 46 of the reflection plate 46 are formed.
Left and right inner rail surfaces 63A facing the A direction, and the upper support plate 4 parallel to the outside of the inner rail surfaces 63A.
An outer rail surface 63B facing the 4th and 44th directions is formed.

At this time, the entire lower portion of the rail 63 (each rail surface 63A, 63B) including both longitudinal end portions thereof has entered the water receiving member 79, and the outer end plate member 66 of the rail 63 is the mounting plate. It enters into the lower side of 82 and is fixed together with the mounting plate 82 and the water receiving member 79 by screws. The bumper 62 is engaged and attached to the upper and lower ends of the mounting plate 82.

Further, each rail surface 63 of the rail 63
At the lower end (pointed portion) of A and 63B, there are three rail-side drainage ports 65 ...
.. are all located inside the water receiving member 79 (on the bottom surface 79A). The storage chamber 22 of the low temperature showcase 1 is opened in the front-rear direction (openings 64, 64) between the rails 63, 63 and the top plate 42.

On the inner and outer rail surfaces 63A and 63B of the rail 63, a plurality of sliding door doors 73A and 73A and 73 made of transparent glass fitted in the sash are provided.
B and 73B are slidably mounted and supported. in this case,
In the embodiment, two doors 73A are attached to the front and back, and two doors 73A
, 73B, ..., And the upper portions of the inner resin doors 73B, 73B supported on both sides of the inner rail surface 63A in the closed state are the side surfaces 46 of the reflection plate 46.
A is slidably supported by A. Further, the upper portions of the outer doors 73A, 73A, which are supported by the central portion of the outer rail surface 63B in the closed state and abut against each other, are slidably supported by the upper support plate 44. Reference numeral 81 is a handle provided on the abutting side of each door 73A and on the outer surface of each door 73B.

Here, the doors 73A and 73B are cooled by the cold air in the storage chamber 22, and dew condensation occurs on the outer surface exposed to the outside air. This condensed water flows down along the outer surfaces of the doors 73A and 73B as shown by the arrows in FIG.
3 into the rail surfaces 63A and 63B. The dew condensation water that has flowed into each of the rail surfaces 63A and 63B is dripped downward from the rail-side drainage ports 65 that are formed at three locations, and is received by the water receiving member 79.

When the dew condensation water received by the water receiving member 79 reaches a predetermined amount, the dew water flows down toward the water receiving side drain ports 84, 84 by its own weight, and then drops into the drain sockets 77, 77, and the drain hose 78. Is discharged to the outside. As described above, according to the present invention, a plurality of rail-side drain ports 65 are formed at the lower end of the rail 63 that supports the doors 73A and 73B.
A container-shaped water receiving member 79 is disposed below the ... And the water receiving side drain port 84 of this water receiving member 79 is made to correspond to the drain socket 77, so that the door 73
Condensed water flowing down along A and 73B is once made to flow into the water receiving member 79 from the rail side drain port 65, ..., After receiving it, the drain socket 77 is drained from the water receiving side drain ports 84 and 84. To be able to discharge.

Therefore, the number of water receiving side drain holes 84 formed in the water receiving member 79 can be made smaller than the number of rail side drain holes 65 formed in the rail 63.
By reducing the number of drain sockets 77 and drain hoses 78, it is possible to minimize the adverse effect of these on foaming of the heat insulating material 7 in the heat insulating box 2. Further, dust from the rail-side drainage ports 65 ... Does not flow directly into the drain socket 77, and these dusts can be removed by removing the rail 63 and cleaning the inside of the water receiving member 79. Therefore, it is possible to avoid clogging of the drain hose 78 due to inflow of dust.

Although not shown in the embodiment, the drainage port 8 of the water receiving member 79, which is wider than the rail 63, is provided.
Since it is possible to easily perform burring processing or the like on 4, the overall productivity of the low temperature showcase 1 can be improved. Further, since the water receiving member 79 is provided with the electric heater 86, it is possible to eliminate the disadvantage that the condensed water received by the water receiving member 79 is re-frozen.

Further, since the entire lower portion of the rail 63 is housed in the water receiving member 79, it is not necessary to apply a sealing material on the rail end portion, which has been conventionally required, and leakage of condensed water from the rail 63 can be prevented. It becomes possible to avoid deterioration of the opening / closing property of the sliding door type doors 73A and 73B.

[0031]

As described above in detail, according to the present invention, a container-shaped water receiving member is provided below a plurality of rail-side drainage ports formed at the lower end of a rail that supports a sliding door. , Since the water receiving side drain port communicating with the main body side is formed in this water receiving member, once the condensed water flowing down along the door flows into the water receiving member from the rail side drain port, and after receiving it , The water can be discharged from the water receiving side drain port to the main body side.

Therefore, it is possible to reduce the number of water outlets on the water receiving side formed in the water receiving member to be smaller than the number of drainage outlets on the rail side formed on the rail. The adverse effect can be suppressed to the minimum. Further, it is possible to avoid the inconvenience that dust from the rail-side drainage port directly flows into the main body side and becomes clogged, and the water receiving member, which is wider than the rail, is easily burred. Therefore, it is possible to improve the productivity of the entire low temperature showcase as a whole.

Further, according to the invention of claim 2, since the heater is provided in the water receiving member, it is possible to eliminate the disadvantage that the condensed water received by the water receiving member is re-frozen. . Further, according to the invention of claim 3, since the entire lower portion of the rail is housed in the water receiving member,
It is not necessary to apply a sealing material on the end of the rail, which has been conventionally required, and it is possible to prevent leakage of dew condensation water from the rail and deterioration of openability of the sliding door type door.

[Brief description of the drawings]

FIG. 1 is a perspective view of a low temperature showcase of the present invention.

FIG. 2 is a vertical sectional side view of the low temperature showcase of the present invention.

FIG. 3 is a vertical sectional side view of an upper portion of the low temperature showcase of the present invention.

FIG. 4 is an enlarged vertical side view of an opening of a heat insulating box of the low temperature showcase of the present invention.

FIG. 5 is an exploded perspective view of a heat insulating box opening of the low temperature showcase of the present invention.

[Explanation of symbols]

 1 Showcase 2 Heat insulation box 63 Rail 64 Opening 65 Rail side drainage port 73A, 73B Door 77 Drain socket 78 Drain hose 79 Water receiving member 84 Water receiving side draining port 86 Electric heater

Claims (3)

[Claims] 1. A rail provided on the lower edge of the opening of the main body,
In a low temperature showcase that is movably supported by this rail and that has a sliding door type door that closes the opening so that the opening can be opened and closed, a plurality of rail-side drainage ports formed at the lower end of the rail,
A container-shaped water receiving member disposed below the rail-side drainage port, and a water-receiving-side drainage port formed on the water receiving member and communicating with the main body side. Low temperature showcase. 2. The low-temperature showcase according to claim 1, wherein the water receiving member is provided with a heater. 3. The rail according to claim 1, wherein at least the entire lower portion of the rail is housed in the water receiving member.
Low temperature showcase.