JP3043205B2 - Showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a showcase provided with a power supply unit and a door which can be mounted with its opening direction reversed right and left.

[0002]

2. Description of the Related Art Conventionally, a door of this type of showcase is provided with glass or the like, and this glass is cooled by cold air in the refrigerator and becomes cloudy, and dew is formed on a peripheral portion. Is disclosed, for example, in Japanese Utility Model Publication No. 3-47189 (F2).
5D23 / 02), a heater was attached, and a power supply line to the heater was drawn from one end of the door on the pivotal side. In addition, in this type of showcase, the opening direction of the door may be restricted depending on the place where the showcase is installed. Therefore, it is necessary to design the door so that the opening direction can be reversed right and left.

[0003]

However, with the structure in which the power supply line is drawn out from one end on the pivot side of the door as described in the above-mentioned publication, when the door is turned upside down, the position where the power supply line is drawn out is paired with the door. Since it moves to a corner position, it becomes impossible to connect a power supply line to a power supply device (power supply) installed in the main body of the showcase. For this reason, when the door is turned over, it is necessary to disassemble the door and draw out the power supply line from the other end of the door at the pivotal side, and the work of mounting the door upside down is extremely complicated.

On the other hand, if a power supply line is attached from the center of the front surface of the door to the socket on the upper surface of the door as in Japanese Utility Model Application Laid-Open No. 57-162483 (F25D21 / 04), the door is not disassembled. Although it is possible to realize reversal and power supply to the heater, the power supply line is greatly exposed in the front, causing a problem in design, and the power supply line is twisted and relatively large acting force is applied. There was also a risk of disconnection.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional technical problem. In a showcase provided with a power supply portion and a door capable of right-left reversal mounting, the door reversing mounting workability is improved. The purpose is to improve.

[0006]

That is, the showcase of the present invention is rotatably supported by the main body on one side and the upper and lower sides, and the opening of the main body can be freely opened and closed by a door which can be mounted left-right reversed. When the door is turned upside down, the power supply unit is located at the pivot side corner of the door, the power supply device is provided on the main body, and the power supply unit is detachably connected, and the door is inverted. The power supply unit is provided in the main body from the portion where the power supply unit is located to the vicinity of the power supply device, and includes an extension wiring that is detachably connected to the power supply unit and the power supply device.

[0007]

According to the showcase of the present invention, since the power supply section located at the pivot-side corner of the door is detachably connected to the power supply device provided on the main body, the power supply such as a heater provided on the door is provided. The components are fed from the feeder. On the other hand, when the door is mounted to be turned left and right, the power supply unit is removed from the power supply device. At this time, the power supply section of the door moves from the initial position to the diagonal position, but since the extension wiring is arranged in the main body from the moved part to the vicinity of the power supply device, By detachably connecting the extension wiring to the power supply device and the power supply unit, power is supplied from the power supply device to the door heater and the like via the extension wiring. Therefore, even when the door is turned over, there is no need to disassemble the door, and the turning work is significantly simplified.

[0008]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a showcase 1 of the present invention, FIG. 2 is a perspective view of the showcase 1 in a state where the door 2 is mounted left-right inverted, FIG. 3 is a perspective view of the door 2, and FIG. FIG. The showcase 1 of the embodiment is a so-called reach-in showcase, in which the display room 3 in the main body 4 composed of a heat insulating wall or a glass wall is cooled to, for example, a refrigeration temperature by a cooling device (not shown), and And the like. The cooling device is a machine room M formed below the display room 3 of the main body 4.
The display room 3 of the main body 4 is opened forward, and a plurality of shelves 5 for mounting products are installed in the display room 3. The front opening of the main body 4 is openably and closably closed by a door 2 rotatably supported by hinge plates 20, 20 mounted on one side (right side in FIG. 1) of the main body 4. ing.

As shown in FIG. 3, the door 2 is formed from a substantially rectangular frame member 14 and a glass 2a mounted in the frame member 14. Cooling air is formed around the inner surface of the frame member 14. A gasket 15 for preventing leakage is attached. Further, hinge collars 6, 6 projecting up and down are attached to one side (right side in FIG. 3) of the door 2, and the door 2 attaches the hinge collars 6, 6 to hinge plates 20, 20. By rotatably engaging, it is pivotally supported on the main body 4.

The frame member 14 of the door 2 and / or the glass 2
3A, a heater (not shown) for preventing dew condensation (clouding) is attached. A power supply line 13 serving as a power supply unit for the heater is connected to a hinge collar 6 located at the lower right corner of FIG.
It has been pulled out through the inside. In addition, a handle 14a for opening and closing the door 2 is attached to a center portion of the door 2 on the non-pivot side.

The other end of the power supply line 13 located inside the door 2 is connected to the heater, and a coupler 13a is attached to one end of the power supply line 13 drawn out of the door 2. on the other hand,
An electrical box 7 as a power supply device is installed on the right side of the main body 4 in the machine room M. The coupler 13a is detachably attached to a coupler 8a attached to a tip of an electric wire 8 from the electrical box 7. Connected.

Further, the extension wiring 9 of the present invention is provided in the main body 4 in advance. The extension wiring 9 is located at a position from which the power supply line 13 is pulled out when the door 2 is installed upside down, that is, from the upper left corner of the main body 4 at the diagonal position in FIG. And a coupler 9 which can be connected to the coupler 8a at both ends.
a and a coupler 9b connectable to the coupler 13a. The coupler 9a serving as the lower end is disposed in the machine room M, and the coupler 9b located at the upper end is embedded in a heat insulating material in the top wall of the main body 4.

At this time, a through hole (not shown) is formed in the top surface of the main body 4 corresponding to the coupler 9b, and a heat insulating material is filled in the top wall with the through hole closed with a tape or the like. Have been. By breaking the tape as needed, the coupler 9b can be pulled out above the main body 4 as shown in FIG. With the above configuration, first, as shown in FIG.
When the door 2 is attached to the main body 4 so that the right side of the door 2 is opened as the pivot side, the hinge plates 20 and 20 are attached to the upper and lower right sides of the main body 4 as described above. 6, 6 are pivotably supported. On the other hand, the power supply line 13 drawn from the hinge collar 6 at the lower right side is drawn into the machine room M as it is, and the coupler 13
a is connected to the coupler 8 a of the wiring 8. Thus, the heater (not shown) of the door 2 is supplied with power from the electrical box 7 and generates heat.

Next, as shown in FIG. 2, when the door 2 is mounted upside down so that the left side of the door 2 is on the pivot side, first, the hinge plates 20, 20 are removed and replaced on the left and right sides of the main body 4. Then, the coupler 13a is detached from the coupler 8a, and the door 2 is turned right and left as it is, so that the hinge collar 6,
The hinge plate 20 is pivotally supported on the hinge plates 20, 20 with the left side facing 6. On the other hand, in this state, the power supply line 13
Is pulled out of the hinge collar 6 located at the upper left end, so that the coupler 9b of the extension wiring 9 previously arranged in the ceiling wall behind this position is broken by the tape as described above. And the coupler 13a is connected to the coupler 9b. And extension wiring 9
This time, the coupler 9a is connected to the coupler 8a of the wiring 8.
As a result, the heater of the door 2 is supplied with power from the electrical box 7 via the extension wiring 9 and generates heat.

Here, the extension wiring 9 exposed above the main body 4 is concealed by a cover (not shown) or the like. As described above, in the present invention, since the extension wiring 9 is provided in the main body 4 in advance, even when the door 2 for closing the front opening of the main body 4 is installed by being turned left and right, the door 2 is turned over as it is. , Coupler 13 of feeder line 13 pulled out of door 2
a and the coupler 9 b at the other end of the extension wiring 9, and the coupler 9 a at one end of the extension wiring 9 is connected to the electric wire 8 of the electrical box 7.
, It is not necessary to disassemble the door 2 and change the position of the power supply line 13 as in the related art. Further, since it is not necessary to largely expose the power supply line to the outside, there is no problem in design, and the inconvenience of the power supply line being deteriorated due to twisting is also prevented.

Although the embodiment has been described by taking as an example a showcase provided with one door 2, the present invention is also effective for a showcase provided with more doors. In the embodiment, the power supply line 13 is drawn from the door 2, but the invention is not limited thereto.
A socket or a coupler may be embedded in the frame member 14 or the like, and the coupler 8a of the electric wire 8 from the electrical equipment box 7 or the coupler 9b of the extension wiring 9 may be connected to the socket or the coupler.

[0017]

As described above, according to the present invention, when the door is installed upside down, the extension wiring is provided in the main body of the showcase from the portion where the power supply portion is located to the vicinity of the power supply device. Therefore, when the door is turned over, power supply to the electric components in the door can be achieved only by connecting the power supply unit to the extension wiring and connecting the extension wiring to the power supply device. Therefore, even when the door is turned over, it is not necessary to disassemble the door, and the reversing mounting work is greatly simplified, and the power supply section is located at one corner of the door, and the extension wiring is also provided in the vicinity. Therefore, there are few problems in design and the occurrence of disconnection failure due to twisting or the like can be suppressed.

[Brief description of the drawings]

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

FIG. 2 is a perspective view of the showcase of the present invention in a state where a door is installed upside down.

FIG. 3 is a perspective view of a door.

FIG. 4 is a perspective view of the door in an inverted state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Showcase 2 Door 2a Glass 4 Main body 6 Hinge collar 7 Electrical box 8a Coupler 9 Extension wiring 9a Coupler 9b Coupler 13 Power supply line 13a Coupler 20 Hinge plate

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F25D 23/00 305 F25D 23/02 A47F 3/04

Claims (1)

(57) [Claims] In a showcase, one side of which is pivotally supported by a main body so as to be rotatable, and an opening of the main body is openably and closably closed by a door which can be mounted to be turned left and right, a pivot of the door is provided. A power supply unit located at the corner of the support side, a power supply device provided on the main body, the power supply unit is detachably connected, and a part where the power supply unit is located when the door is installed upside down. A showcase, comprising: an extension wiring that is disposed in the main body so as to extend to a vicinity of the power supply device and that is detachably connected to the power supply unit and the power supply device.