JPH0363887B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a low-temperature show case equipped with a heat insulating side plate having a multilayer transparent plate.

(b) Conventional technology Publication of Utility Model Application No. 55-159986 (F25D11/00) states,
At least one piece of inner glass is adhesively fixed to the inner surface of the outer glass via an appropriate spacer, and the circumference of the inner glass is smaller than that of the outer glass.The space between each glass is a heat insulating space. Partially double-glazed glass is provided on the side surface and is held in contact with the inner circumferential surface of the frame and the inner circumferential surface of the front glass so that the peripheral edge is not directly exposed.This partially double-glazed glass is attached to the frame using screws or other fasteners. The installed configuration is disclosed.

(C) Problems to be Solved by the Invention According to the above-mentioned conventional technology, in order to improve the sealing effect of the bonding surface between the frame and the outer glass, the common means is to use adhesive or adhesive on both the inner and outer surfaces. However, when an adhesive is used, the adhesive is visible from the outside through the outer glass layer, and the adhesive forms an irregular pattern, which causes problems in terms of appearance. Ta.

One way to solve this problem is to form a paint film on the surface of the outer glass that contacts the frame, but if the paint film is formed by applying an inorganic paint, such as ceramics, the adhesive will Because water enters the film and becomes transparent, similar to when frosted glass is wetted with water, it becomes necessary to further form an organic paint film on top of the inorganic paint film, and a great deal of effort is required to shield the frame from the side. A new and costly problem arose.

(d) Means for Solving the Problems In order to solve the above-mentioned problems, the present invention includes an insulating wall in which a storage chamber is formed, and is attached to both left and right sides of this insulating wall, and is installed in the lateral direction of the insulating wall. a pair of left and right heat insulating side plates each having a multi-layer transparent plate that allows the storage chamber to be seen through; a sealing member with an adhesive interposed at a joint surface between the heat-insulating wall and the multi-layer transparent plate; A coating that is formed by applying an inorganic paint to a portion of the side surface of the inside wall of the layered transparent board facing the side surface of the heat insulation space, which is the outside surface of the refrigerator space, and that faces the side surface of the heat insulation wall, and that shields the side surface of the heat insulation wall. To provide a low-temperature case comprising a membrane.

(E) Effect According to the embodiment, an inorganic coating film 46 that shields the side surface of the heat insulating wall 2 is provided on the surface of the inner side plate 23 of the refrigerator space 25 of the multilayer transparent plate 21 constituting the heat insulating side plate 20 on the side of the heat insulating space 25.
Since the inside plate 23 acts as a spacer separating the paint film 46 and the seal member 45, the adhesive 45B of the seal member 45 is attached to the paint film 46.
It is possible to prevent the coating film 46 from becoming wet due to adhesion to the surface.

(F) Embodiments Below, embodiments of the present invention will be described based on the drawings. 1 is an open type low-temperature case whose main body is composed of a heat insulating wall 2 with an opening 3 for storing and taking out products on the front side. By arranging the partition plate 4 at an appropriate distance from the inner wall of the heat insulating wall 2, a cold air passage 7 in which a plate fin type cooler 5 and a blower fan 6 are housed and a plurality of shelves 8 are arranged. The opening 3 has a storage chamber 9 formed therein, and air outlet and suction ports 10 and 11 facing each other along the upper and lower edges of the opening 3. By forced circulation as shown by the arrow in FIG. 1, a cold air curtain A is formed in the opening 3 and the storage chamber 9 is cooled.

Reference numeral 12 denotes a machine room formed below the heat insulating wall 2, in which a refrigerant compressor 13, a condenser 14, a blower fan 15, a dew pan 16, etc., which together with the cooler 5 constitute a cooling cycle, are housed. Reference numeral 17 denotes a rectifier made of honeycomb material or the like disposed at the outlet 10, which rectifies the cool air flow blown out as the air curtain A into the opening 3 to form a laminar flow. 18
is a lighting chamber formed in front of the air outlet 10,
an elongated fluorescent lamp 19 for identifying said storage chamber 9;
are arranged for storage.

Reference numeral 20 denotes a pair of left and right heat insulating side plates that are attached to both the left and right sides of the heat insulating wall 2 and cover the both sides, and cover both the left and right sides of the storage chamber 9 and the lighting room 18, the upper area 7A and the back area of the cold air passage 7. It consists of a multilayer transparent plate 21 that faces both left and right sides of the cold air passage 7B, and a heat insulating board 22 that faces both left and right sides of the bottom area 7C of the cold air passage 7. The multilayer transparent plate 2
1 is the inside of the refrigerator made of square transparent glass,
It consists of two outer side plates 23 and 24, and a rectangular annular spacer 26 containing a desiccant (not shown) that maintains a predetermined distance between the two plates and forms a heat insulating space 25 between the two plates. It is. The heat insulating plate 22 has both inner and outer plates 27 and 28 made of a suitable material such as a metal plate or a resin plate, and a groove 29 that is provided across the upper edges of these plates and into which the lower end of the multilayer transparent plate 21 is fitted. The frame body 30 formed with the above-mentioned inner and outer plates 2
7 and 28 and a foamed heat insulating material 31 made of hard polyurethane or the like filled with foam in the space surrounded by the frame body 30.

32 is a closing plate that covers both left and right sides of the upper area 7A and back area 7C of the cold air passage 7; 33 is a closing plate that covers the bottom area 7C of the cold air passage 7; It is attached to the side surface of the wall 2 and prevents the cold air flow passing through the cold air passage 7 from leaking in the left and right direction. Both closing plates 3
2, 33, the upper edge of the closing plate 33 is bent inward at a substantially right angle, forming a bent side 34.
Further, the lower edge is a protruding side 35 that protrudes downward from the bottom surface of the heat insulating wall 2.

Reference numerals 36, 37, and 38 denote first to third mounting brackets used to attach the heat insulating side plate 20 to the heat insulating wall 2; while the closing plate 3 is attached to the other end by means such as welding.
The second mounting bracket 37 has one end attached to the lower surface of the heat insulating plate 22 with a fastener 40 such as a screw, while the other end is attached to the lower surface of the heat insulating plate 22 with a fastener 40 such as a screw. The protruding side 35 of the closing plate 33 is located at the end.
, and together with this protruding side, a fastener 41 such as a screw is attached.
One end of the third mounting bracket 38 is attached to the upper surface of the heat insulating wall 2 with a fastener 43 such as a screw, while the other end is attached to the upper surface of the multilayer transparent plate 21. It is provided with a crowning part 44 that fits and covers the edge. Reference numeral 45 denotes an expandable sealing member provided on the outer surfaces of both of the closing plates 32 and 33, which is compressively deformed by attaching the heat insulating side plate 20 to the heat insulating wall 2, and seals the space between the heat insulating wall 2 and the heat insulating side plate 20. Keep joints airtight. The sealing member 45 is preferably a band-shaped foamed resin having countless closed cells, with adhesives 45A and 45B applied to both the inner and outer surfaces as shown in FIG. , 33.

When installing the heat insulating side plate 20, first attach the engaging piece 39 of the first mounting bracket 36 to the closing plate 33.
By temporarily fixing the heat insulating side plate 20 to the heat insulating wall 2 by placing and engaging the bent side 34 of the heat insulating side plate 20, the center of gravity of the heat insulating side plate 20 is added to the vertical direction, and the protruding side 35 of the closing plate 33 and the second mounting bracket 37 are The mounting piece 42 will automatically overlap with the mounting piece 42, and then the stopper 41 will also overlap the protruding side 3.
5, and finally, with the upper edge of the multilayer transparent plate 21 covered with the crowned part 44, the third mounting bracket 38 is fixed to the upper surface of the heat insulating wall 2 with the stopper 43. This allows the heat insulating side plate 20 to be attached to the heat insulating wall 2.

Reference numeral 46 is formed in a band shape on the outer surface of the inner side panel 23 of the multilayer transparent plate 21, that is, the surface on the side of the heat insulating space 25, and is formed in a band shape on the side surface of the heat insulating wall 2 and the partition plate 4, and the closing plate 3.
2 and the sealing member 45 from being seen from the outside, and is formed by applying an inorganic paint such as ceramics in an inverted L shape as shown in FIG. 4. The width L of this paint film 46 is slightly larger than the width M from the outer peripheral edge of the side surface of the heat insulating wall 2 to the inner peripheral edge of the side surface of the partition plate 4, as shown in FIG. Therefore, even when looking diagonally rearward from the side of the low-temperature show case 1 as shown by the arrow in FIG. The inner peripheral end will be shielded.

According to such a configuration, since the inorganic coating film 46 that shields the side surface of the heat insulating wall 2 is formed on the surface of the inner side plate 23 of the refrigerator space 25 of the multilayer transparent plate 21 constituting the heat insulating side plate 20 on the side of the heat insulating space 25, The inner side panel 23 is coated with a coating film 46
Since the adhesive 45B of the sealing member 45 adheres to the paint film 46 and the paint film 46 becomes wet, it is possible to prevent the paint film 46 from becoming wet. Since it is formed on the side of the heat insulating space 25 in a sealed state, it will not be damaged by mischief from outside or deteriorated by changes in outside air humidity.

(g) Effects of the invention According to the present invention described above, the effects listed below are produced.

Since an inorganic paint film that shields the side surface of the heat insulating wall is formed on the side of the heat insulating space side of the inner side plate of the multi-layer transparent plate constituting the heat insulating side plate, the inner side plate is a spacer that separates the painted film and the sealing member. Due to this effect, it is possible to prevent the adhesive of the sealing member from adhering to the paint film and causing the paint film to become wet, and as a result, the side surface of the insulation wall can be shielded with one coat of paint. become.

Because the paint film on the inner side of the multi-layered transparent panel is formed on the side facing the sealed insulation space, it is susceptible to damage from outsiders or deterioration due to changes in outside air humidity. The durability of the paint film is good.

[Brief explanation of drawings]

The drawings all show embodiments of the low-temperature show case of the present invention, and FIG. 1 is a cross-sectional view taken along line A-A in FIG. 6, FIG. 2 is a cross-sectional view taken along line B-B in FIG. -C
A line sectional view, FIG. 4 is a right side view of the inside panel of the refrigerator, FIG. 5 is a perspective view of the right side panel with the multilayer transparent plate removed, and FIG. 6 is an overall perspective view. 2...Insulating wall, 9...Storage room, 20...Insulating side plate, 21...Multilayer transparent plate, 23...Inner side plate, 2
5...Insulating space, 45...Sealing member, 45B...
...adhesive, 46...paint film.

Claims (1)

[Claims] 1. A heat insulating wall in which a storage chamber is formed, and a pair of left and right heat insulating side plates each having a multi-layer transparent plate attached to both left and right sides of the heat insulating wall and allowing the storage room to be viewed from the lateral direction of the heat insulating wall. , a sealing member with adhesive interposed between the joint surface between the heat insulating wall and the multi-layer transparent plate, and the surface on the heat-insulating space side that becomes the outer side surface of the inner side plate of the multi-layer transparent plate. A low-temperature show case comprising a coating film formed by applying an inorganic paint to a portion facing a side surface of a heat insulating wall and shielding the side surface of the heat insulating wall.