JPH0548055Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a freezer in which a sliding storage container is provided in the main body of an insulating box.

(b) Prior art For example, in Japanese Utility Model Application Publication No. 60-101670, an opening that can be opened and closed by a door body is formed on the top surface, and the bottom part of the inner wall is protruded inward in a stepped manner. A freezer is shown in which a storage container with a door body that can be freely pulled out from the lower space is provided in a lower space below a partition shelf disposed on the same plane as the upper surface of the shaped protrusion.

(c) Problems to be solved by the invention In the above-mentioned conventional technology, rails are provided on both left and right sides of the storage container with a door body, and rails that engage with the rails are provided at appropriate locations on the inner box that forms the lower space. A matching rail supporting member is provided, and the storage container is provided so that it can be freely pulled out by engaging the respective members, but when the storage container is stored, the rail and rail supporting member are provided with the rail support member that is attached to the storage container. In particular, the rail supporting members provided in contact with the inner wall of the inner box are cooled directly from the inner box. Therefore, when the storage container is pulled out, not only frost will form on the rail, but moisture in the outside air will also adhere to the rail supporting member due to the intrusion of outside air into the lower space, and frost will form on the storage container. As the storage container is being pulled out, frost grows, and this frost may cause the rail and the rail support member to freeze, resulting in a problem that the storage container cannot be pulled out and stored smoothly. . The present invention aims to solve the above problems.

(d) Means for solving the problems The present invention was made to solve the above problems, and will be explained below based on an example. A heat insulating box main body 1 consisting of an inner box 3 provided, an outer box 2, and a heat insulating material 4 filled between the two boxes, and a sliding storage container 30 provided in the heat insulating box main body so as to be freely drawn out. , a pair of left and right support members 15, 15 provided opposite to each other at appropriate positions in the inner box 3 of the heat insulating box body 1, an upper fixing piece 18 superimposed on and fixed to the support members 15, 15, and this upper fixing piece. A pair of left and right hanging members 1 are formed with a lower piece 19 extending downward with a space between the side wall 3A of the inner box 3 and the side wall 3A of the inner box 3.
7, 17, an open part 37 formed between the lower end of the hanging members 17, 17 and the side wall 3A, and a rail 21 attached to the lower part of the hanging members 17, 17 in the front-rear direction, respectively. , wheels 36 are attached to appropriate positions on the outer surfaces of opposite side walls of the sliding storage container 30 and supported and guided by the rails 21.

(E) Effect Hereinafter, according to the embodiment, since the lower piece 19 of the hanging members 17, 17 extends downward with a distance from the side wall 3A of the inner box 3, the hanging members 17, 17 are The heat transmitted to 17, 17 is gradually radiated into the atmosphere by the lower piece 19, which acts as a heat sink, and the lower piece 19
The temperature of the lower part of the rail 21 at the bottom of the lower piece 19 is approximately equal to the temperature of the cold air in the lower storage chamber.

(F) Embodiment Hereinafter, an embodiment of the present invention will be described in detail based on the drawings.

A in FIG. 1 indicates a freezer with an opening on the top surface, and 1 indicates the following:
The main body of the insulating box includes an outer box 2, an inner box 3, and a storage chamber 5 with an opening 1A formed on the top surface using a heat insulating material 4 filled between the two boxes 2 and 3, and is made of aluminum or other heat conductive material. The storage compartment 5 is
Cool the inside to a predetermined temperature.

Further, numeral 7 denotes a heat insulating door body, which is pivotally mounted on the rear side of the main body 1 with a hinge or the like, and closes the upper opening of the storage chamber 5 so as to be openable and closable by rotating vertically about the hinge. . Moreover, P is a packing attached to the inner peripheral edge of the door body 7.

Hereinafter, the structure of the heat insulation box body 1 will be explained in detail. A lower bottom surface 11 and an upper bottom surface 12 protruding adjacent to the lower bottom surface are formed on the bottom surface of the main body 1. A unit chamber 13 is provided below the upper bottom surface 12, and a compressor 14, a condenser (not shown), etc. are disposed in this unit chamber. Reference numerals 15 and 15 designate support members extending in the front-rear direction and fixed at appropriate positions on both side walls of the inner box 3 extending upward from the lower bottom surface 11, that is, at positions slightly lower than the upper bottom surface 12. These supporting members are formed by bending a metal plate into an L shape, and the mounting pieces 15 extend inward.
A is formed, and the inner box 3 is secured by a fastener 16 such as a screw.
is installed on. Moreover, 17, 17 is a hanging member formed by bending a metal plate similarly to the supporting member. These hanging members are stacked and fixed on the upper fixing pieces 15A of the supporting members 15, 15, respectively.
8, and a lower piece 19 extending downward from these upper fixing pieces at a distance from the side wall 3A of the inner box 3. At this time, by positioning the lower end of the lower piece 19 above the bottom surface 11, an open portion 37 is formed between the lower end of the lower piece 19 and the side wall 3A of the inner box 3. Further, the upper fixing piece 18 has a plurality of elongated holes 18A, 18 for adjusting dimensional variations caused by bulging of the inner box when foaming the insulation material.
A is formed, and the hanging member 17 is fixed to the support member 15 by communicating a fixing member 20 such as a screw with these elongated holes 18A, 18A and an opening (not shown) of the mounting piece 15A of the support member 15. be done. Note that the fixing position of the hanging member 17 to the support member 15 is adjusted using the elongated holes 18A, 18A of the hanging member 17. Further, reference numerals 21 and 21 denote rails fixed to the lower portions of the hanging members 17 and 17 by welding and the like, and these rails are formed by bending metal plates into a substantially U-shape. Note that a gap is formed between the inner wall side tips of the upper fixing pieces 18 of the hanging members 17, 17 and the inner wall 3A of the inner box, and direct heat transfer from the inner wall 3A to the upper fixing pieces 18 is prevented.

Further, 22, 22 are the lower pieces 1 of the hanging members 17, 17.
9 is a front wheel mounting plate fixed by welding or the like to the back surface of the front wheel mounting plate 9, and front wheels 23, 23 made of resin, for example, are provided at the lower part of this front wheel mounting plate. Furthermore, a partition plate 25 is formed by bending the circumference of a metal plate, and this partition plate 25 is placed on the upper fixing pieces 18, 18 of the hanging members 17, 17. The upper surface of the partition plate 25 is substantially flush with the upper bottom surface 12, an upper storage chamber 26 is formed above the partition plate 25, and a heat insulation box main body is formed between the partition plate 25 and the lower bottom surface 11. A lower storage chamber 27 is formed opposite to the side wall opening 1a of No. 1.

Reference numeral 30 indicates a slide-type storage container provided in the lower storage chamber 27 so that it can be freely drawn out, and 30A is an insulating drawer door having flanges 31 bent outward on both left and right edges of the upper opening. . And 3
2 and 32 are drawer rails fixed to the left and right side walls of the storage container 30 by welding or the like;
1, a fixing surface 34 with the side wall of the storage container, and a supporting piece 35 that extends inwardly from the lower end of this fixing surface and is mounted and supported on the front wheel 23. It is configured. Further, a wheel 36 made of resin, for example, is provided at the rear of the fixed surface 34 of each pull-out rail 32, 32, and this wheel is attached to the rail 2.
It is mounted and supported on the lower pieces of 1 and 21.

In the freezer A, when the refrigerant is flowing through the cooler 6 and the cooling operation is being performed, when the user of the freezer pulls out the storage container 30, the wheels 36,
36 slides within the rails 21, 21, and the support pieces 35 of the drawer rails 32, 32 slide on the front wheel 23, so that the storage container 30 is smoothly pulled out.
Furthermore, when the cooling operation is being performed, the surface of the inner box 3 is cooled by the circulation of refrigerant in the cooler 6, and for example, when the set temperature inside the refrigerator is -25°C, the inner box surface temperature becomes approximately -30°C. ing. Heat is then directly transmitted from the surface of the inner box 3 to the left and right support members 15, 15, and further from the support members 15, 15 to the mounting pieces 15A, 1.
5A and the upper fixing pieces 18, 18 to the hanging members 17, 17. Here, the hanging members 17,1
The heat is transmitted to the inner box 3, but as it is transmitted downward through the lower piece 19 extending downward with a gap between it and the side wall of the inner box 3, the temperature rises due to the atmosphere of the lower storage chamber 27, and the lower the lower part, the lower the lower part. The temperature of the cold air becomes close to that of the storage room.
Furthermore, although the heat is transferred to the rails 21, 21 provided at the lower part of the hanging members 17, 17,
7, 17 is close to the temperature of the cold air in the lower storage chamber, the rails 21, 21 rise almost to the temperature of the cold air in the lower storage chamber, for example, when the temperature in the lower storage chamber is -25
℃, the temperature is approximately -26℃, which is slightly lower than this temperature and higher than the inner box surface temperature.

Furthermore, the temperature of the lower part of the front wheel mounting plates 22, 22 approaches the cold air temperature of the lower storage chamber due to heat dissipation into the lower storage chamber 27, and the front wheels 23, 23 provided at the lower part of the front wheel mounting plates 22, 22 are almost stored in the lower part. The temperature of the cold air in the room is reached.

Therefore, the heat generated by the cooling operation of the freezer A is directly transmitted from the surface of the inner box 3 to the support members 15, 15, but the heat generated by the cooling operation of the freezer A is directly transmitted to the support members 15, 15, and the suspension members 17, 17 fixed to the mounting pieces 15A, 15A and these mounting pieces. Upper fixing piece 1
At 8 and 18, the temperature rises due to the atmosphere, and furthermore, since the lower piece 19 of the hanging members 17 and 17 extends downward with a space between it and the surface of the inner box 3, the upper part from the supporting members 15 and 15 The heat transmitted to the fixing pieces 18, 18 is gradually radiated by the lower piece 19, which has a large area exposed to the cold air in the lower storage chamber, and the temperature approaches the atmospheric temperature in the lower storage chamber, and the heat transferred to the lower piece 19, which has a large area exposed to the cold air in the lower storage chamber, approaches the atmospheric temperature in the lower storage chamber. The lower the piece 19 is, the higher its surface temperature becomes. And the rail 2 provided at the bottom of the lower piece 19
The temperatures of Nos. 1 and 21 become closer to the temperature of the cold air in the lower storage chamber because in addition to the decrease in the amount of cooling due to heat transfer, the amount of heat radiated to the storage chamber increases. For this reason, when the storage container 30 is pulled out, outside air enters the lower storage chamber, and most of the moisture contained in this outside air adheres to the inner surface of the inner box 3, where the temperature is low, and turns into frost. Since the rails 21, 21 are maintained at approximately the temperature of the cold air in the lower storage room, there is almost no ice formation on the surface of each rail 21, 21, and when the storage container 30 is repeatedly pulled out, the rail 2
1,21 Even if ice frost occurs on the surface, this ice frost will transfer to the lower temperature inner box surface,
The increase in ice and frost can be suppressed to a very small amount, and as a result, when the storage container 30 is pulled out or stored, the rear wheels 36, 36 of the rails 21, 21 rotate smoothly, and the storage container 30 can be moved smoothly. It can be moved. In addition, the inner box surface and rails 21, 2
Since there is a gap between rail 1 and rail 2, even when ice and frost formed on the surface of the inner box grow, rail 2
1.21 can be avoided.

In addition, the lower part of the front wheel mounting plates 22, 22 becomes closer to the lower storage chamber temperature due to heat radiation, and the front wheels 23, 23 provided at the lower part also become approximately equal in temperature to the cold air temperature of the lower storage chamber, so that when the storage container 30 is pulled out, the temperature of the front wheels becomes closer to the lower storage chamber temperature. Frost formation can be avoided.

Note that the present invention is not limited to the above-mentioned embodiments. For example, the bottom surface of the insulation box main body 30 does not have the lower bottom surface 11 and the upper bottom surface 12, and the bottom surface is flat, and the entire width of the lower part of the insulation box main body is Even in a freezer provided with a sliding storage container, the supporting members 15, 15, the hanging member 1, as in the above embodiment,
7, 17, rail 21, etc., similar effects can be obtained.

(g) Effect of the invention Since the invention is a freezer as shown in the above embodiment, heat is transmitted from the inner wall surface to the upper fixed piece of the hanging member via the supporting member; The heat is gradually radiated into the atmosphere through the lower piece extending downward with a space between the lower piece and the inner wall, and the amount of heat radiated increases toward the lower part of the lower piece, so that the lower part becomes approximately the temperature of the cold air in the freezer. Furthermore, the temperature of the rail provided at the bottom of the bottom piece is approximately the same as the temperature of the cold air inside the freezer, as is the temperature at the bottom of the bottom piece, so when the sliding storage container is pulled out, the outside air will be inside the freezer. Most of the moisture contained in the outside air when it enters is concentrated and frozen on the inner wall surface where the temperature is low, and there is almost no frost on the surface of the rail, whose surface temperature is approximately equal to the temperature of the cold air inside the freezer. do not have. Even if ice and frost were to form on the surface of the rail, this ice and frost would transfer to the lower temperature inner wall surface, and the frost on the rail surface would almost disappear, and the rail surface would be removed as the storage container was pulled out. As a result, the wheels provided on the storage container can smoothly rotate on the rails without being hindered by ice and frost, and the And the storage operation can be performed smoothly.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention,
Figure 1 is a schematic longitudinal sectional view of the freezer, Figure 2 is an enlarged view of the main parts of Figure 1, Figure 3 is a schematic perspective view of the freezer, Figure 4 is a schematic perspective view of the freezer when the storage container is pulled out, FIG. 5 is a schematic cross-sectional view of the freezer, and FIG. 6 is a schematic cross-sectional view of the storage container. A...Freezer, 1...Insulation box body, 2...Outer box, 3...Inner box, 4...Insulating material, 11...Lower bottom surface, 12...Upper bottom surface, 15, 15... Support member, 15A, 15A... Placement piece, 17, 17...
Hanging member, 18, 18... Upper fixing piece, 18A,
18A...Long hole, 19,19...Lower piece, 21,2
1... Rail, 25... Partition plate, 27... Lower storage chamber, 30... Sliding storage container, 32... Drawer rail, 36, 36... Wheels.

Claims (1)

[Scope of utility model registration request] An insulating box main body consisting of an inner box 3 having an evaporation pipe 6 for a refrigeration cycle on its outer surface, an outer box 2, and a heat insulating material 4 filled between the two boxes; A slide-type storage container 30 is provided, and a pair of left and right support members 15, 15 are provided facing each other at appropriate locations on the inner wall of the heat insulating box body 1.
and upper fixing pieces 18, 18 stacked and fixed on the supporting member, and a lower piece 1 extending downward with a space between the upper fixing pieces 18, 18 and the inner wall.
A pair of left and right hanging members 1 in which 9 and 19 are formed.
7, 17, an open part 37 formed between the lower end of the hanging members 17, 17 and the inner box 3, and a rail 21 attached to the lower part of the hanging members 17, 17 in the front-rear direction, respectively. , 21, and wheels 36 that are attached to appropriate positions on the outer surfaces of opposing side walls of the sliding storage container 30 and are supported and guided by the mounting rails 21.
Freezer equipped with 36.