JP2521280Y2 - Door packing - Google Patents

Description

[Detailed description of the device]

[0001]

FIELD OF THE INVENTION The present invention relates to door packing for refrigerators and freezers.

[0002]

2. Description of the Related Art Door packing according to the prior art is shown in FIG.
As shown in 0, notches 9 are provided at four corners where the two sides of the packing 4 with respect to each corner portion 10 of the door panel intersect.

[0003]

However, in the above conventional technique, as shown in FIG.
The notches 9 are provided at the positions corresponding to the four corners 10 of
In the case of the cold air circulation as shown in FIG. 11, the cold air flows from the lower side gaps 11a to the space 12 between the packing 4 and the door panel 7.
In the process of entering and ascending, the outside air infiltration is condensed and exits from the inside through the upper side gaps 11b. In such a state, especially in the space portion 12 on the upper side and the lower side,
Even if the air entering the outside air is condensed, there is almost no pressure difference between the two side gaps, so it does not move in the left and right gap directions and accumulates as water drops, frost, and ice.

Therefore, water drops on the upper and lower spaces
The challenge is to prevent the accumulation of frost and ice.

[0005]

According to claim 1 of the present invention,
A door that opens and closes an opening of a storage room of a refrigerator or a freezer, a packing that is provided on four inner sides of the door and that contacts the opening edge when the door is closed, and a space between the packing and the door. Provided is a door packing provided with a formed space portion and a notch provided at two diagonal positions of the packing and connecting the space portion and the storage chamber.

[0006]

[Operation] Cold air circulates through the lower cutouts due to the circulation of the cold air, and since the cutouts are provided diagonally, the cold air splits in the lateral and upward directions. Since the air goes out through the notch, the air invading the outside air is also sent out into the refrigerator through the upper gap together with the cold air.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 7 shows an external view of a refrigerator-freezer having a plurality of compartments a, which are mainly used for business purposes. The main body 3 has a front part which opens and closes openings of the respective storage rooms a. A freely provided door 2 is provided, and a cooling unit 1 for cooling the inside of each storage chamber a is arranged at the upper part.

FIG. 8 is a sectional view taken along the line AA of FIG. A plurality of shelves b are arranged in the storage room a, and a drain pipe c for drainage is provided in the lower part. Further, the door 2 is fitted with the main body 3 via the packing 4 so that the inside of the storage chamber a and the outside can be shut off. The cool air cooled by the cooling unit 1 is forcibly circulated in the storage chamber a by the fan of the cooling unit 1 as shown by the arrow.

Next, the structure of the present invention will be described. FIG. 1 shows a rear view of the door 2, and FIG. 2 shows an enlarged view of a corner portion of the door shown in FIG. Further, FIG. 3 is a perspective view showing the components constituting the door 2 in an exploded manner, and FIG.
FIG. 6 shows an enlarged view of the packing 4 portion of the drawing shown in FIG. FIG. 4 is a view showing cold air flowing in the space 12 formed between the packing 4 and the door panel.

As can be seen from FIG. 3, the door 2 is made of a metal door body 6 provided with a handle portion 6a, and an inner peripheral edge of a back side opening opposite to the handle portion 6a provided on the door body 6. A resin-made packing holder 5 that is fitted to the housing 2, a resin-made door panel 7 that forms the inner wall of the door 2, and a magnet that is attached to the packing holder 5 to keep the main body 3 and the door 2 airtight It consists of a mold packing 4.

The above-mentioned components and their related structures will be further described with reference to FIGS. 3 to 6. A flange 6b is provided on the back side of the door body 6, and the flange 6b forms a back side opening. Resin packing holder 5
6, the fitting groove 5b provided therein is sandwiched by the flange 6b and fitted to the inner peripheral edge of the back side opening of the door body 6. Further, the packing holder 5 is provided with a mounting groove 5a for mounting the packing 4 with a built-in magnet.
The mounting protrusion 4a of the packing 4 is fitted and attached to a. Further, such a packing 4 mounting structure is configured to be detachable for service or the like.

Reference numeral 6c is a heat insulating material such as urethane, which is foam-filled so as to fill a space between the door body 6 and the door panel 7 to which the packing holder 5 is attached by using a foaming jig composed of an upper mold and a lower mold. In this way, the packing holder 5 and the door panel 7 are integrally joined to the door body 6 by the foamed heat insulating material 6c, and the door 2 is substantially formed.

As shown in FIGS. 1 and 2, the packing 4 is welded at corners 8 where each side intersects with each other, and two notches 9 are provided at two diagonal positions of the corner 10 of the door panel 7. Is provided so that the cool air in the storage chamber a flows into the space 12 formed between the door panel 7 and the packing 4 through the gap 11 composed of the lower gap 11c and the upper gap 11d formed by the notch 9. ing.

In the packing 4 having the above-mentioned structure, since the packing 4 is detachable, the packing 4 and the door main body 6 cannot be securely fixed to each other with an adhesive or the like. The air cannot enter the space 12 and the outside air invades the space 12 without being cut off. However, as shown in FIG. 4, the cool air forcedly circulated by the fan of the cooling unit 1 enters through the lower gap 11c and splits in the lateral and upward directions, and further flows in the upward and lateral directions. In other words, since it goes out through the upper gap 11d, it is possible to remove the outside air intruding air together with the cold air through the upper gap 11d through the inside of the refrigerator by the dehumidifying action of the cooler.

[0016]

[Effects of the Invention] According to the above-mentioned invention, since cold air also flows into the upper and lower spaces of the conventional staying state, the outside air intruding air is also sent out from the upper clearance through the upper gap and the space of the entire packing. Water drops, frost and ice can be removed from the parts.

[Brief description of drawings]

FIG. 1 is a rear view of a door according to an embodiment of the present invention.

FIG. 2 is an enlarged rear view of the door.

FIG. 3 is a configuration diagram of a door showing parts of the door.

FIG. 4 is a rear view of the door showing the circulation of cold air according to the present embodiment.

FIG. 5 is a vertical sectional side view of a door.

FIG. 6 is an enlarged vertical sectional side view of a packing portion on a vertical sectional side surface of a door.

FIG. 7 is a front perspective view of a commercial refrigerator-freezer.

FIG. 8 is a vertical cross-sectional side view showing cold air circulation of a commercial refrigerator-freezer.

FIG. 9 is a rear view of a conventional door.

FIG. 10 is an enlarged view of a corner portion of a conventional door.

FIG. 11 is a rear view of the conventional door showing the circulation of cold air.

[Explanation of symbols]

 2 Door 3 Refrigerator / Refrigerator body 4 Packing 9 Notch

Claims (1)

(57) [Scope of utility model registration request] 1. A door that opens and closes an opening of a storage room of a refrigerator or a freezer, and packing that is provided on four inner sides of the door and abuts the edge of the opening when the door is closed.
A space formed between the packing and the door, and notches provided at two diagonal positions of the packing and connecting the space and the storage chamber. Door packing to do.