JP2950027B2 - Main unit case of cold air circulation open 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 cool air circulation type open showcase having an opening for taking out a product on a front surface thereof and an air curtain formed in two layers in the opening.

[0002]

2. Description of the Related Art As an open showcase of this kind,
FIG. 3 showing the lower part thereof is known. In the figure, the open showcase includes a main body case 1 having a substantially U-shaped cross section having an opening 1a on the front surface and a rising portion 1b on the lower front surface. The main body case 1 is composed of an outer box 2 and an inner box 3 made of heat insulating walls.
The inner compartment 4 is formed inside, and a partition plate 5 is provided at a rear portion between the outer case 2 and the inner case 3 and a partition plate 6 is provided at the rising portion 1b. The ventilation path 8 is formed. Further, on both left and right end surfaces of the main body case 1, an end plate 15 and an end plate 16 which are bridged between the outer case 2 and the inner case 3 and are divided into a lower part and a rising part are screwed to the outer case 2.

As shown in FIG. 4, the partition plate 6 is bent at right and left ends into a Z-shape to form a predetermined mounting height, and a mounting leg 6a is provided. The mounting leg 6a is attached to the outer case by a small screw 6b. 2 and fixed between the outer case 2 and the inner case 3. Reference numeral 9 denotes a bracket for supporting the partition plate. One end of the two-layer air passage is upwardly opening 1a.
The suction port 7a and the suction port 8a facing each other are formed, and the other end (not shown) forms an outlet at the upper part of the opening 1a, facing the suction ports 7a and 8a. At the lower part of the ventilation passage, a plurality of fans 11 for sending air to each ventilation passage are arranged in the lateral direction, and a cooler 12 is installed in the inner ventilation passage 7.
Reference numeral 13 denotes a shelf that partitions the inside of the compartment 4 into upper and lower stages.

[0004] In the open showcase, the air inside the refrigerator is ventilated by the fans 11 from the air inlets 7a, 8a to the ventilation passages 7, 8a.
The air is cooled by the cooler 12 in the ventilation path 7, and is blown out from the suction port through each ventilation path and circulated. The air blown out from the inner air outlet forms a cool air curtain 17 in the opening 1a, and a part of the cooling air flows into
The cooling air flows through the cooling air curtain to form a protective air curtain 18 outside the cooling air curtain. Thereby, the inside of the refrigerator 4 is thermally shielded from the outside air, and the products in the refrigerator are efficiently cooled and kept cool.

[0005]

However, the conventional main body case 1 has a problem in that it is difficult to accurately attach the partition plate 6 to the mounting position during assembly. That is, when the mounting screw position of the partition plate 6 is marked on the rising portion of the outer box 2, the marked outer plate of the rising portion is displaced during the foam molding of the heat insulating material, and therefore, there is a problem that the mounting position of the partition plate is not fixed. Was. Further, when the jig for assembling the partition plate 6 is used at the time of assembling, it is not easy to operate a large jig, and the working efficiency is remarkably reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a main body case in which a partition plate can be accurately mounted at a mounting position without deteriorating work efficiency at the time of assembly in a cold air circulation type open showcase.

[0007]

According to the present invention, there is provided, in accordance with the present invention, an outer case and an inner case, each having a heat-insulating outer case and an inner case. It is formed in a U-shaped cross section having a portion, furthermore, an end plate is provided on both left and right end surfaces, and a partition plate is provided on the rising portion, and a suction port is provided at an upper end of the rising portion, front and rear, and two layers are provided on the opening portion. The partition plate is fixed to the end plate in a body case of a cold air circulation type open showcase provided with a two-layer ventilation path for forming an air curtain between the outer box and the inner box.

[0008]

An end plate is accurately mounted on both left and right sides of the main body case with reference to both end faces. If the end plate is provided with a mounting portion such as a threaded hole for mounting the partition plate, the partition plate mounted on the mounting portion provided with high accuracy can improve the accuracy of the mounting position and facilitate the mounting operation.

[0009]

FIG. 1 and FIG. 2 show an embodiment of the present invention, in which parts common or identical to those in FIG. 3 and FIG. 1 and 2, the end plates 16 provided on the right and left end surfaces of the rising portion 1b of the main body case 1 are formed by bending an inner end portion into a hook shape and making a screw hole 16a at a predetermined position.
The mounting portion 16b of the partition plate 6 is formed. On the other hand, the partition plate 6 is provided with bolt holes 6c at both left and right ends in accordance with the screw holes 16a of the mounting portion 16b. The processing of the mounting portion 16b and the bolt hole 6c can be performed extremely easily and with high precision by processing the end plate 16 and the partition plate 6 alone. In the above-described configuration, the main body case 1 is assembled such that the partition plate 6 aligns the bolt holes 6c at both ends with the screw holes 16a, and
7 is easily and quickly fixed to the outer case 2 by simply screwing it into the screw hole 16a, and is mounted very accurately at a predetermined position. Road 8 is formed. As described above, in the assembling work of the main body case 1, the partition plate 6 is assembled with high accuracy while maintaining high working efficiency.

[0010]

According to the present invention, it is constituted by a heat-insulating outer case and an inner case, is formed in a U-shaped cross section having an opening at the front surface and a rising portion below the opening. An end plate is provided on both end faces and a partition plate is provided on the rising portion, and a suction port is provided at the upper end of the rising portion at each of the front and rear sides, and a two-layer ventilation path for forming a two-layer air curtain is formed at the opening. In the main case of the cool air circulation type open showcase provided between the outer box and the inner box, the partition plate is fixed to the end plate. The main body case can be provided in which a partition plate for partitioning the inner air passage into an inner air passage and an outer air passage can be provided with an accurate mounting position, easy work, and without lowering work efficiency.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a rising portion of a main body case showing an embodiment of the present invention.

FIG. 2 is an exploded side view of a rising part of a main body case of FIG. 1;

FIG. 3 is a sectional view of a lower portion of an open showcase to which the present invention is applied.

FIG. 4 is a cross-sectional view corresponding to FIG. 1 of a main body case rising portion shown in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body case 1a Opening 1b Rise part 2 Outer box 3 Inner box 6 Partition plate 7 Inner ventilation path 8 Outer ventilation path 16 End plate

Claims (1)

(57) [Claims] (1) An outer box and an inner box having heat insulation,
It has an opening on the front surface and is formed in a U-shaped cross section having a rising portion below this opening, and furthermore, an end plate is provided on both left and right end surfaces and a partition plate is provided on the rising portion, and a front and rear portion is provided at the upper end of the rising portion. In the main case of a cool air circulation type open showcase which has a suction port and has a two-layer ventilation path for forming a two-layer air curtain in the opening between the outer box and the inner box, A main case of a cold air circulation type open showcase, wherein a plate is fixed to the end plate.