JP2808233B2 - Ceiling front structure such as refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front structure of a ceiling of a refrigerator, a freezer, a cool box, etc., and more particularly to a structure for improving the strength of the ceiling.

[0002]

2. Description of the Related Art As shown in FIG. 2, a table type refrigerator, freezer, cool box, etc. 1 has a heat insulating box 3 forming a cooling chamber 2 and a machine room 4 arranged side by side. A door 6 that can be opened and closed left and right on both sides of a central frame 5 is installed on the front surface of the room 2, and a top plate 7 is mounted over the heat insulating box 3 and the machine room 4. In the apparatus, as shown in detail in FIG. 6, the ceiling 10 of the heat insulating box 3 has a thin front frame upper portion 12 abutting on the gasket 11 of the door 6 and a cooling chamber combined with the front frame upper portion 12. 2
The inner box 13 facing the
An upper plate 15 made of a thin plate fixed to the front end and a urethane resin body 16 injected and foamed in a space surrounded by the upper plate 15, and a front opening of the front frame upper part 12 having a substantially U-shaped cross section opened forward. Auxiliary plate 17 is fixed by screws 18,
Inside the auxiliary plate 17, wires 19 for a door switch, a lamp, a heater for preventing dew condensation on the upper portion 12 of the front frame, etc. are taped.
Top plate 7 fixed by 0 and folded back downward
The top plate 7 is mounted such that the front end 21 of the top plate sandwiches the upper and lower sides of the auxiliary plate 17, and the top plate 7 covers the entire upper surface of the upper plate 15.

In this conventional apparatus, the load applied from above to the front end 21 of the top plate due to work on the upper surface of the ceiling 10 or a load, is supported by the auxiliary plate 17 so that the front end 21
Is designed to prevent it from deforming downward,
As a result of the above-mentioned load applied to the auxiliary plate 17, a forward tensile force acts on the screw 18, so that the front frame upper part 12 partially projects forward together with the auxiliary plate 17 as shown in FIG. In this case, the upper end of the cantilever of the auxiliary plate 17 may be bent downward, and the front end 21 of the top plate may be deformed downward. To solve this problem, as shown in FIG.
A relatively thick screw plate 22 is applied to the inside of the screw 2, and the auxiliary plate 17, the front frame upper part 12 and the screw plate 22 are fastened together by screws 18, or the thickness of the top plate 7 is reduced as a whole. It was necessary to increase it.

When assembling the refrigerator 1 or the like, the top plate 7 is attached to the front part of the ceiling 10 at the final stage. At this time, if the electric wires 19 protrude forward from the inside of the auxiliary plate 17. Since there is a possibility that the end of the top plate 7 may pinch or damage the electric wire 19, it is necessary to securely fix the electric wire 19 to the inside of the auxiliary plate 17 with the tape 20 in advance as described above. An increase in man-hours was inevitable.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to improve the strength of a front structure of a ceiling of a refrigerator or the like. Another object of the present invention is to realize weight reduction and / or cost reduction in a front part of a ceiling of a refrigerator or the like.
Still another object of the present invention is to reduce the number of assembling steps at the front part of the ceiling of a refrigerator or the like.

[0006]

For this reason, the ceiling front structure of a refrigerator or the like according to the present invention has an upper front frame, and a front end projecting forward beyond the upper front frame is folded downward and rearward. An upper plate fixed to the upper part of the front frame and a top plate covering the upper surface of the upper plate are provided.

[0007]

That is, the front end of the upper plate protruding forward beyond the upper portion of the front frame is folded back downward and fixed to the upper portion of the front frame, so that a load is applied to the front end of the upper plate from above. Sometimes, the load acts rearward from the folded front end of the upper plate to the upper part of the front frame, so that the above-mentioned load can be easily supported by the foam insulation material provided inside the upper part of the front frame. Therefore, it is possible to suppress the top plate covering the upper surface of the front end portion of the upper plate from being deformed downward.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described by assigning the same reference numerals to the same parts as those of the conventional apparatus. 1 to 4, a table-type refrigerator, freezer, cooling storage, and the like 1 include a heat insulating box 3 and a machine room 4 that form a cooling chamber 2 therein.
Doors 6 are respectively installed on both sides of a central frame 5 on the front surface of the cooling chamber 2, and can be opened and closed right and left by an upper hinge 30, a lower hinge 31, and a handle 32 with a built-in door switch. A door stopper 33 is provided below and a thermometer 34 is provided on the front surface of the center frame 5. In addition, a refrigerator thermostat 35 is attached to the front of the machine room 4, while a condenser 36 is installed in the machine room 4.

The ceiling 10 of the heat-insulating box 3 has a thin front frame upper part 12
And an inner box 13 combined with the front frame upper portion 12 and facing the cooling chamber 2, an upper plate 40 made of a thin plate fixed to the upper surface of the front frame upper portion 12 with rivets 14, and a space surrounded by them. The upper plate 40 protects the urethane resin body 16 and at the same time secures the strength of the upper surface of the ceiling 10, and the front end 41 of the upper plate 40 covers the front frame upper part 12. The front frame is bent backward and backward to protrude forward and backward to form a substantially U-shaped cross section, and the upper bent portion 42 at the end thereof is connected to the front frame upper part 12.
And is fixed to the front frame upper portion 12 by screws 43. As a result, a box structure is formed by the upper plate front end portion 41 and the front frame upper portion 12, and a door switch is provided in the box structure. An electric wire 19 for a lamp, a heater for preventing dew condensation on the upper portion 12 of the front frame, and the like, are further arranged.
A screw hole 44 for a screw 43 is provided on the front surface of the upper plate, and a notch 45 is formed near the center of the upper plate front end portion 41.

The top plate 7, which is mounted over the heat insulating box 3 and the machine room 4, is fitted from the front so that the front end 21 folded downward and rearward wraps around the front end 41 of the upper plate. The upper and lower sides of the top plate 7 are fixed to the cabinet main body by screws and the like (not shown) and cover the entire upper surface of the upper plate 40.

In the table type refrigerator 1 or the like, when a load is applied from above to the front end 21 of the tabletop due to work on the upper surface of the ceiling 10 or a load, the load is applied to the front end 4 of the upper plate.
1, and further acts rearward from the upper bent portion 42 at the tip of the upper plate 40 to the front frame upper portion 12, but the urethane foam resin body 16 adheres to the inside of the front frame upper portion 12. And has a large strength against the rear surface pressure, so that the above load can be strongly supported and the box formed by the upper plate front end portion 41 and the front frame upper portion 12. Since the strength of the structure is large, the top plate front end 21 is suppressed from being deformed downward due to the above-described load. Therefore, the top plate 7 is made thicker as in the conventional device, or the auxiliary plate 17 or Since it is not necessary to additionally install a relatively thick screw plate 22, the ceiling 1
0 can be easily reduced in manufacturing cost and weight, and the product quality of the table type refrigerator 1 and the like can be improved.

Further, since the electric wires 19 are arranged inside the box structure formed by the front end portion 41 of the upper plate and the upper portion 12 of the front frame by utilizing the notch 45 of the front end portion 41 of the upper plate. Unlike the conventional apparatus, it is not necessary to fix the electric wire 19 in advance with the tape 20 and, when the top plate 7 is mounted on the ceiling part 10, there is no possibility that the top plate 7 may pinch the electric wire 19 or cause any damage. The mounting time of the top plate 7 can be easily reduced, and the manufacturing cost of the ceiling 10 can be reduced from this aspect as well.

Further, since the front end 41 of the upper plate 40 has a substantially U-shaped cross section that opens rearward, and the end surface of the sheet metal is not arranged on the front side, it is difficult to assemble the table-type refrigerator 1 or the like. There is no risk of the worker being injured by the burrs on the sheet metal end face, and the working environment can be improved.

In the embodiment shown in FIG. 5, the same parts as those in the above embodiment are denoted by the same reference numerals, project forward in front of the upper portion 12 of the front frame, bend downward and rearward, and have a substantially U-shaped cross section opened rearward. The front end portion 41 of the upper plate 40 forming a lower end has a lower bent portion 50 at its tip, the lower bent portion 50 is applied to the front surface of the front frame upper portion 12, and is fixed to the front frame upper portion 12 by screws 43, While a box structure is formed by the upper plate front end portion 41 and the front frame upper portion 12, a screw hole 44 for screwing the screw 43 is not provided on the front surface of the upper plate front end portion 41. There is no particular change from the example, and the same operation and effect as the above-described embodiment can be obtained.

[0015]

According to the ceiling front structure of a refrigerator or the like according to the present invention, the front end of the upper plate disposed above the upper portion of the front frame is folded back downward and rearward in front of the upper portion of the front frame, and is formed at the upper portion of the front frame. Because it is fixed, the load applied to the front end of the upper plate from above acts on the upper part of the front frame rearward, and the above-mentioned load is applied by the foam insulation material provided inside the upper part of the front frame. Can be easily supported, so that the top plate covering the upper surface of the upper plate front end can be easily prevented from being deformed downward, so that the weight and / or cost of the ceiling can be easily reduced. it can.

[Brief description of the drawings]

FIG. 1 is an enlarged longitudinal sectional view of a main part in an embodiment of the present invention.

FIG. 2 is a schematic overall perspective view of a refrigerator and the like.

FIG. 3 is an overall front view of the embodiment.

FIG. 4 is a partially exploded perspective view of the embodiment.

FIG. 5 is an enlarged longitudinal sectional view of a main part according to another embodiment of the present invention.

FIG. 6 is an enlarged longitudinal sectional view of a main part of a conventional device.

FIG. 7 is an operation explanatory view of the conventional device.

FIG. 8 is a longitudinal sectional view of a main part of another conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator etc. 7 Top plate 10 Ceiling part 12 Front frame upper part 13 Inner box 16 Urethane resin body 19 Electric wire 21 Top plate front end 40 Upper plate 41 Upper plate front end 42 Upper bent part 43 Screw 44 Screw hole 50 Lower bent part

Claims (4)

(57) [Claims] An upper plate fixed to the upper portion of the front frame, and a top plate covering the upper surface of the upper plate fixed to the upper portion of the front frame. Ceiling front structure such as a refrigerator. 2. The front ceiling structure of a refrigerator or the like according to claim 1, wherein a front end of the upper plate is folded downward and rearward in a substantially U-shaped cross section and fixed to an upper portion of the front frame. 3. The refrigerator or the like according to claim 1, wherein a hole for fixing the upper plate to an upper portion of the front frame is provided on a front surface of a front end of the upper plate folded downward and rearward. Ceiling front structure. 4. A front part of a ceiling of a refrigerator or the like according to any one of claims 1 to 3, wherein an electric wire is arranged inside a box-shaped structure formed by folding a front end of the upper plate downward and rearward. Construction.