JPH0634262A - Main body case of cold air circulation type open show case - Google Patents

Abstract

PURPOSE:To form a partition plate easily and in a right place for forming an aeration passage having two layers before and behind the partition between an outer box and an inner box a rising part of a main body case. CONSTITUTION:A fixing part 16b is formed at one end part of an end plate 16 arranged to close between an outer box 2 and an inner box 3 and fixed to the outer box 2 at both right and left end surfaces of a main body case. A partition plate 6 is fixedly mounted at the end plate 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main body case in a cold air circulation type open showcase which has an opening for taking out a product on the front surface and an air curtain is formed in two layers in this opening.

[0002]

2. Description of the Related Art As an open showcase of this kind,
The one shown in FIG. 3, which illustrates 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, which has an opening 1a on the front surface and a rising portion 1b on the lower front portion. The main body case 1 is composed of an outer box 2 and an inner box 3 which are heat insulating walls.
A compartment 4 is formed on the inner side of the compartment, and a partition plate 5 is provided on the rear part between the outer box 2 and the inner box 3 and a partition plate 6 is provided on the rising part 1b. The ventilation passage 8 is formed. Further, end plates 15 and 16 which are bridged between the outer case 2 and the inner case 3 and which are divided into a lower part and a rising part are screwed to the outer case 2 on both left and right end surfaces of the main body case 1.

As shown in FIG. 4, the partition plate 6 is bent at its left and right 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 box by a machine screw 6b. It is fixed to the rising part of 2 and is installed between the outer box 2 and the inner box 3. Reference numeral 9 is a bracket that supports the partition plate. One end of the air passages of the inner and outer two layers is opened upward with an opening 1a.
The suction port 7a and the suction port 8a facing each other, and the other end (not shown) forms a blowout port facing the suction ports 7a and 8a above the opening 1a. A plurality of fans 11 for blowing air to each ventilation passage are laterally arranged in the lower portion of the ventilation passage, and a cooler 12 is installed in the inner ventilation passage 7.
Reference numeral 13 is a shelf for partitioning the interior 4 into a plurality of upper and lower stages.

In the above open showcase, the air inside the refrigerator is blown by the fans 11 from the suction ports 7a, 8a to the ventilation paths 7, 8 respectively.
And is cooled by the cooler 12 in the ventilation passage 7, is blown out from the suction port through each ventilation passage, and is circulated. Then, the air blown out from the inner air outlet forms the cool air curtain 17 in the opening portion 1a, and a part of the cooling air is stored in the interior 4
Flowing through the cooling chamber to cool the inside of the chamber and blow off from the outside air outlet form a protective air curtain 18 on the outside of the cooling air curtain. As a result, the interior 4 is heat-shielded from the outside air, and the commodities in the interior are efficiently cooled and kept cool.

[0005]

By the way, the conventional body case 1 has a problem that it is difficult to mount the partition plate 6 at a precise 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 outer plate of the marked rising portion is displaced during foaming of the heat insulating material, and therefore the partition plate mounting position is not constant. It was Further, when a jig for assembling the partition plate 6 is used at the time of assembling, it is not easy to operate a large jig and there is a drawback that work efficiency is significantly lowered.

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

[0007]

In order to achieve the above object, according to the present invention, a heat-insulating outer box and an inner box are provided, which have an opening in the front surface and stand upright below the opening. It is formed in a U-shaped cross section having a portion, and further provided with end plates on both left and right end faces and partition plates on the rising portion, and suction holes are provided at the upper and lower ends of the rising portion respectively at the front and rear, and two layers are provided at the opening portion. In the main body case of the cold air circulation type open showcase in which two layers of ventilation passages for forming an air curtain are provided between the outer box and the inner box, the partition plate is fixed to the end plate.

[0008]

[Operation] End plates can be accurately attached to both left and right sides of the main body case with reference to both end surfaces. If the end plate is provided with a mounting portion such as a screw hole for mounting a partition plate, the partition plate mounted on the mounting portion provided with high accuracy has an improved mounting position accuracy and is easy to mount.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show an embodiment of the present invention, in which parts common or identical to those in FIGS. 3 and 4 are designated by the same reference numerals. 1 and 2, the end plates 16 provided on the left and right end surfaces of the rising portion 1b of the main body case 1 are formed by bending the inner end portion into a hook shape and forming screw holes 16a at predetermined positions.
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 alignment with the screw holes 16a of the mounting portion 16b. The mounting portion 16b and the bolt hole 6c can be processed extremely easily and highly accurately by processing the end plate 16 and the partition plate 6 alone. In the above-described configuration, when the body case 1 is assembled, the partition plate 6 aligns the bolt holes 6c at both ends with the screw holes 16a so that the machine screw 1
7 is fastened to the outer box 2 easily and in a short time only by tightening it in the screw hole 16a, and is attached extremely accurately at a predetermined position. The inner ventilation passage 7 and the outer ventilation are provided between the outer casing 2 and the inner casing 3. The path 8 is formed. As described above, in the assembling work of the main body case 1, the partition plate 6 is assembled with high precision while maintaining high work efficiency.

[0010]

According to the present invention, it is constituted by a heat-insulating outer box and an inner box, has an opening in the front surface, and is formed in a U-shaped cross section having a rising portion below the opening. End plates are provided on both end faces and a partition plate is provided on the rising part, and suction holes are provided at the upper and lower ends of the rising part in the front and rear, respectively, and a two-layer ventilation passage for forming a two-layer air curtain is formed in the opening. In the main body case of the cold air circulation type open showcase provided between the outer box and the inner box, since the partition plate is fixed to the end plate, the space between the outer box and the inner box at the front rising portion at the time of assembly is improved. It is possible to provide a main body case in which a partition plate for partitioning the inner ventilation passage and the outer ventilation passage is installed at an accurate mounting position, is easy to work, and does not reduce work efficiency.

[Brief description of drawings]

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

FIG. 2 is an exploded side view of the rising portion of the main body case of FIG.

FIG. 3 is a sectional view of the lower portion of the open showcase that is the subject of the present invention.

4 is a transverse cross-sectional view of the rising portion of the main body case shown in FIG. 3, which corresponds to FIG.

[Explanation of symbols]

 1 Main Body Case 1a Opening 1b Rising Part 2 Outer Box 3 Inner Box 6 Partition Plate 7 Inner Ventilation Channel 8 Outer Ventilation Channel 16 End Plate

Claims (1)

[Claims] 1. A heat insulating outer box and an inner box,
It is formed in a U-shaped cross section having an opening on the front surface and a rising portion below this opening. In the case of the main body of the cold air circulation type open showcase, each of 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 body case of a cold air circulation open showcase, characterized in that a plate is fixed to the end plate.