JP3340993B2 - Refrigerator gasket fastening structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gasket fastening structure for a refrigerator, and more particularly, to a refrigerator gasket fastening structure capable of preventing cold air leakage due to removal of a gasket.

[0002]

2. Description of the Related Art A gasket attached to the back surface of a refrigerator door, that is, a door liner, is closely attached to the front surface of the refrigerator body (the front surface around the refrigerator compartment and the freezer compartment) to prevent the leakage of cool air inside the refrigerator. Or, it is used to prevent outside air from flowing into the inside. Such a gasket is usually extruded from a soft synthetic resin material or rubber material.

FIG. 6 is a sectional view showing a fastening structure of a conventional refrigerator gasket. As shown in FIG.
Reference numeral 0 denotes a sealing portion that is in close contact with the front of the refrigerator to seal the refrigerator compartment or the freezing compartment, and a mounting portion 1 that is inserted into the door liner.
6 is included. The sealing unit includes a magnetic force generator 12 that is magnetically attached to the front surface of the refrigerator and a blocking unit 14 that separates the inside and the outside of the refrigerator when the magnetic force generator 12 is in close contact with the front surface of the refrigerator body. Be composed.

A magnet is built in the magnetic force generating section 12. Therefore, the iron plate 2
a to be able to adhere to the front surface of the refrigerator main body 2 made of a. The magnetic force is generated by the magnetic force generating unit 12 by the magnetic force.
When it is brought into close contact with the front of the refrigerator, the blocking portion 14 having a certain separation space is also brought into close contact with the front of the refrigerator main body 2 so that the inside and outside of the refrigerator are not communicated. Actually, the blocking unit 14 has a space forming a predetermined heat insulating layer in order to block the inside and outside of the refrigerator.

[0005] The mounting portion 16 is inserted into and fixed to the door liner 1a of the refrigerator, thereby supporting the entire door gasket 10 on the back surface of the door. On the other hand, the mounting portion 16 has an arrow-shaped cross section, and the tip portion 16b is formed to be sharp for ease of insertion. A pair of projections 16 are provided on the left and right sides of the tip 16b.
a is extended, and the protrusion 16a serves to prevent the mounting portion 16 from being detached after being inserted into the door liner 1a of the refrigerator.

However, the conventional gasket fastening structure of the refrigerator having the above-described structure has the following problems.
The insertion groove 1b of the door liner 1a is
Since a is formed by the vacuum forming method, the inner peripheral edge of the cross section is curved. Therefore, since the projection 16a of the mounting portion 16 of the gasket 10 cannot be effectively supported, the gasket 10 is easily removed from the insertion groove 1b. In this case, there is a problem that the gasket 10 cannot perform its original function, and the cool air inside the refrigerator leaks to the outside or the outside air flows into the refrigerator.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and prevents the gasket from being removed arbitrarily, so that the cool air of the refrigerator leaks to the outside. It is another object of the present invention to provide a gasket fastening structure for a refrigerator that can prevent external air from flowing into the refrigerator.

[0008]

In order to achieve the above object, a gasket fastening structure according to the present invention is provided in a refrigerator storage room.
Between the door skin forming the inner surface and forming the door shell
Door lights with a certain interval to fill the insulation
And an insert formed around the edge of the door liner
It is inserted into the groove to prevent leakage of cold air in the refrigerator storage room.
The gasket fastening structure, which is
There are, at the entrance of both ends of the insertion groove, formed of so that <br/> plurality of engagement projections inner surface is a plane respectively opposed to each other
The inner surfaces of the insertion grooves in which the engaging protrusions are formed are each transparent.
It is formed by forming a perforation .

According to one embodiment of the present invention, the insertion groove of the door liner is provided with a transmission hole for forming the engagement protrusion. According to another embodiment of the present invention, the engaging protrusion of the insertion groove is formed obliquely toward a bottom surface of the insertion groove.

According to the present invention, the door liner is manufactured by injection molding. According to the above configuration, since the projections of the mounting portion of the gasket are engaged with the plurality of engagement projections formed in the insertion groove of the door liner, the gasket does not come off from the door liner. Therefore,
There is an advantage that it is possible to prevent leakage of cold air from the refrigerator and inflow of external air due to removal of the gasket.

[0011]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a schematic sectional view illustrating a gasket fastening structure of a refrigerator according to a first embodiment of the present invention, and FIG. 2 is a schematic perspective view illustrating a door liner according to the first embodiment of the present invention. In the drawings, the same gasket structure as in the related art will be described with the same reference numerals.

As shown in FIG. 1, a gasket 10 according to the present invention is the same as a conventional gasket, and has a magnetic force generating portion 12 which is brought into close contact with the front surface of a refrigerator main body by magnetic force, and a state in which the generating portion 12 is brought into close contact with the refrigerator main body. And a sealing part including a blocking part 14 for separating the inside and the outside of the refrigerator, and a mounting part 16 for mounting the gasket 10 to a door liner 32.

The mounting portion 16 is a portion to be mounted in an insertion groove 32b formed in the door liner 32. As described above, the cross section of the mounting portion 16 is formed in an arrow shape, and the mounting portion 16 is easily inserted into the insertion groove 32b.
The tip 16b is formed so as to be sharp. A pair of protrusions 16a extending obliquely from the left and right sides of the front end portion 16b to the rear side serve to prevent the mounting portion 16 from coming off the door liner 32.

On the other hand, as shown in FIG. 2, a large number of engaging projections are provided in the insertion groove 32b of the door liner 32 according to the present invention. That is, at a plurality of locations of the insertion groove 32b of the door liner 32 in the longitudinal direction, there are provided engagement projections 32a projecting in opposite directions from both upper ends of the insertion groove 32b. Therefore, when the mounting portion 16 of the gasket 10 is inserted into the insertion groove 32b, the left and right projections 16a of the mounting portion 16 are engaged with the engaging projections 32a, so that removal is prevented.

The transmission hole 32c formed below the engagement projection 32a is formed in the process of manufacturing the door liner 32 according to the present invention using a mold, and will be described later in detail. As shown in FIG. 1, the additional function of the transmission hole is formed by the door liner 32 and the door iron plate 34 with the mounting portion 16 of the gasket 10 inserted into the insertion groove 32b of the door liner 32. When the undiluted foaming solution for insulation is injected into the space, the undiluted foaming solution permeates into the insertion groove 32b side.

As described above, while the foaming liquid soaked into the insertion groove 32b is hardened, the mounting portion 16 of the gasket 10 inserted into the insertion groove 32b is securely fixed.
0 improves the heat insulating effect.

Hereinafter, a method of manufacturing the door liner according to the first embodiment of the present invention will be described with reference to FIGS. 3 (a) and 3 (c). As shown in the figure, the door liner according to the present invention is characterized in that it is injection-molded using a mold without using a vacuum molding method. That is, A which constitutes the door liner
An upper mold M1 and a lower mold M
And extruded.

FIG. 3A is a schematic perspective view of the lower mold M2, and the line AA 'is a portion where the engaging projection 32a (see FIG. 2) is formed. FIG. 3B shows a state where the upper mold M1 and the lower mold M2 are arranged to manufacture the door liner according to the first embodiment of the present invention.
FIG. 3A is a cross-sectional view taken along the line AA ′ of FIG. 3, and FIG. 3C shows an arrangement of an upper mold M1 and a lower mold M2 to manufacture the door liner according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view taken along the line BB ′ of FIG.

As shown in FIG. 3A, the line AA 'of the lower mold M2 is connected to the center of the lower mold M2 in order to form the engaging projection 32a (see FIG. 2). Part protrudes. In order to form a protrusion on the door liner formed by the line AA ′, the lower mold M2 is required.
Side of the line AA ′ of FIG.
The AA 'line portion of the manufactured door liner is projected outward so that the AA' line portion of the manufactured door liner has a U-shape depressed outward.

However, such a shape is a shape in which compression and demolding between the upper mold M1 and the lower mold M2 cannot be substantially performed. Therefore, while being able to be compressed and released, the engagement projection 32a is formed as shown in FIG.
The side surface of the upper mold M1 and the lower mold M2 along the line AA ', that is, the portion indicated by T in FIG. 3B is designed so that the molten liquid does not permeate. Therefore, in order to prevent the molten liquid F from being injected into the T portion, a lower portion of the engagement projection 32a of the door liner manufactured by the upper mold M1 and the lower mold M2 designed in this manner is not shown in FIG. Thus, the transmission hole 32c is formed.

Hereinafter, the operation of the gasket fastening structure for a refrigerator according to the present invention will be described with reference to the accompanying drawings. FIG.
As shown in (1), the mounting portion 16 of the gasket 10 is pushed into the insertion groove 32b of the door liner 32 attached to the inner surface of the door 30. At this time, even if the width of the upper part of the mounting part 16 including the left and right side protrusions 16a is larger than the insertion groove 32b, the tip part 16a of the mounting part 16 is sharp and manufactured from a soft synthetic resin or rubber material. Gasket 10
Has elasticity, so that the gasket 10 can be inserted.

However, the mounting portion 16 of the gasket 10 once inserted into the insertion groove 32b cannot be removed by the engaging projection 32a of the insertion groove 32b. This means that even if the gasket 10 attempts to separate from the insertion groove 32b, the left and right side protrusions 16a of the mounting portion 16 of the gasket 10 are engaged with the engagement protrusions 32a formed on the upper left and right sides of the insertion groove 32b. This is because they are engaged. As a result, the gasket 10 does not come off from the insertion groove 32b, so that it is possible to prevent the leakage of cool air of the refrigerator and the inflow of external air caused by the gasket 10 being taken off.

As described above, the mounting portion 16 of the gasket 10
Into the insertion groove 32b of the door liner 32,
When the foaming liquid is injected into the interior space of the door formed between the door liner 32 and the door case 34,
The foaming liquid permeates into the insertion groove 32b through 2c.

As described above, the undiluted foaming solution permeated into the insertion groove 32b is filled with the gasket 1 inserted into the insertion groove 32b.
0 and the gasket 10
Can be efficiently prevented from being detached arbitrarily. Further, since the insertion groove 32b is also filled with the heat insulating material, there is an advantage that the heat insulating effect of the door 30 is enhanced.

FIG. 4 shows a door liner 32 according to a second embodiment of the present invention. In this embodiment, the engagement protrusion 32a '
Are bent obliquely downward. As described above, when the engaging projection 32a 'is bent obliquely downward, the mounting portion 16 of the gasket 10 can be easily inserted. Since the projections 16a of the portion 16 are respectively engaged with the inclined portions of the engagement projections 32a ', an effect that the components 16 are not easily removed can be expected.

FIG. 5A is a schematic perspective view showing a lower mold M2 'for manufacturing the door liner 32 (see FIG. 4) according to the second embodiment of the present invention.
The portion where the engaging projection 32a '(see FIG. 4) of FIG. 4 (see FIG. 4) is formed, that is, the line CC' is formed obliquely downward.

FIG. 5B shows a state in which the upper mold M1 'and the lower mold M2' are arranged to manufacture the door liner according to the second embodiment of the present invention. −
It is a schematic sectional drawing of the C 'line part. As described above, it is the same as the first embodiment of the present invention except that the locking projection 32a '(see FIG. 4) of the door liner 32 (see FIG. 4) is formed obliquely downward. , And a detailed description thereof will be omitted.

[0028]

As described above, according to the present invention, a large number of engaging projections are formed in an insertion groove of a door liner into which a mounting portion of a gasket is inserted to prevent the gasket from being removed. It is possible to achieve an effect capable of blocking cold air leakage and inflow of external air.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a gasket fastening structure according to a first embodiment of the present invention.

FIG. 2 is a schematic perspective view showing the door liner according to the first embodiment of the present invention.

3A and 3B are views showing a mold for manufacturing the door liner according to the first embodiment of the present invention, wherein FIG. 3A is a schematic perspective view showing a lower mold, and FIG. 3B is a view A of FIG. FIG. 3C is a cross-sectional view taken along line A-A ′, and FIG. 3C is a cross-sectional view taken along line BB ′ in FIG.

FIG. 4 is a schematic perspective view showing a door liner according to a second embodiment of the present invention.

5A and 5B are views showing a mold for manufacturing the door liner according to the second embodiment of the present invention, wherein FIG. 5A is a schematic perspective view showing a lower mold, and FIG. It is sectional drawing about the C 'line.

FIG. 6 is a cross-sectional view showing a gasket fastening structure of a conventional refrigerator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Gasket 12 ... Magnetic force generation part 14 ... Blocking part 16 ... Mounting part 16a ... Projection 16b ... Tip part 32a, 32a '... Engagement protrusion part 32b ... Insertion groove 32c ... Transmission hole 34 ... Door iron plate M1, M2 ... Die F: molten liquid

Claims (3)

(57) [Claims] 1. A refrigerator having a storage chamber interior surface ,
Insulation is filled between the door skin forming the outer shell
A door liner with a constant spacing, and inserted into an insertion groove formed around the edge of the door liner
Is, in the gasket fastening structure constituted by a gasket to prevent the Mo泄cold air of the refrigerator storage compartment, the inlet ends of the insertion groove, Kakarigo突of many inner surface is a plane pieces <br/> Parts are formed to face each other,
A transmission hole is formed on the inner surface of the insertion groove where the engagement protrusion is formed.
Made is gasket fastening structure of the refrigerator characterized by Rukoto. 2. The gasket fastening structure for a refrigerator according to claim 1, wherein the engaging projection of the insertion groove is formed obliquely toward a bottom surface of the insertion groove. 3. The gasket fastening structure for a refrigerator according to claim 1, wherein said door liner is injection molded.