KR100402599B1 - the structure of door gasket for refrigerator - Google Patents

Abstract

The present invention relates to a gasket fastening structure of the refrigerator which can prevent cold air leakage due to removal of the gasket.

The gasket fastening structure of the refrigerator according to the present invention integrally forms a tip portion 16b and a pair of inclined protrusions 16a at the mounting portion 16 formed at the lower end of the gasket 10, and is coupled to the door liner 32. ) Is characterized in that the insertion groove (32b), and the through-hole 32c for forming the protruding molded one or more locking jaw (32a) and the locking jaw (32a). According to the above configuration, the mounting projection of the gasket is supported by the locking jaw of the door liner insertion groove, thereby preventing the gasket from being removed.

Description

The structure of door gasket for refrigerator

The present invention relates to a gasket fastening structure of the refrigerator, and more particularly, to a gasket fastening structure of the refrigerator that can prevent cold air leakage due to the removal of the gasket.

The gasket attached to the back of the door of the refrigerator, i.e., the door liner, is in close contact with the front of the refrigerator main body (front of the refrigerator compartment and the freezer compartment) to prevent cold air from leaking out or air from entering the refrigerator. Used. Such a gasket is usually extruded from a soft synthetic resin material or a rubber material.

1 is a cross-sectional view showing a conventional refrigerator gasket fastening structure. As shown, the gasket 10, the magnetic force generating unit 12 is in close contact with the magnetic force on the front of the refrigerator, the blocking to separate the inside and the outside of the refrigerator in a state in close contact with the magnetic force generating unit 12 It comprises a portion 14 and a mounting portion 16 for mounting to the door liner (1a).

A magnet is built in the magnetic force generating unit 12, and accordingly, the magnetic force of the magnet is able to be in close contact with the front surface of the refrigerator main body 2 made of the iron plate 2a. When the magnetic force generating unit 12 is in close contact with the front of the refrigerator main body 2 by the magnetic force, the blocking unit 14 having a predetermined distance from the inside and the outside of the refrigerator may also be in close contact with the front of the refrigerator main body 2. In fact, the blocking portion 14 is formed with a space for forming a predetermined heat insulating layer to block the inside and outside of the refrigerator.

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 rear surface of the door. On the other hand, the mounting portion 16 has an arrow shape as a whole, and the tip portion 16b is pointed to facilitate insertion. In addition, the pair of protrusions 16a formed to be inclined upward and to the left and right from the front end portion 16b serves to prevent the mounting portion 16 from being separated after being inserted into the door liner 1a of the refrigerator.

The gasket fastening structure of the conventional refrigerator configured as described above has the following problems.

Since the insertion groove 1b of the door liner 1a is formed by vacuum forming the door liner 1a, its inner circumferential edge is curved. Accordingly, the gasket 10 may be easily removed from the insertion groove 1b because it cannot effectively support the protrusion 16a of the mounting portion 16 of the gasket 10. Therefore, the gasket 10 may not perform the original function, such that cold air inside the refrigerator leaks to the outside or outside air flows into the refrigerator.

The present invention has been made to solve the above problems, the gasket fastening structure of the refrigerator that can prevent the removal of the gasket for the purpose of the present invention to prevent the cold air leaks to the outside or the outside air flows into the refrigerator To provide.

1 is a cross-sectional view showing a conventional refrigerator gasket fastening structure.

Figure 2 is a schematic cross-sectional view showing a first embodiment of a refrigerator gasket fastening structure according to the present invention.

Figure 3 is a schematic perspective view showing a door liner of a first embodiment of a refrigerator gasket fastening structure according to the present invention.

Figure 4a is a schematic perspective view showing a lower mold for manufacturing the door liner of the first embodiment according to the present invention.

Figure 4b is a partial cross-sectional view taken along the line A-A 'of Figure 4a showing a state in which the upper mold and the lower mold to arrange the doorliner of the first embodiment according to the present invention.

4C is a partial cross-sectional view taken along line B-B 'of FIG. 4A showing a state in which an upper mold and a lower mold are disposed to manufacture a door liner of a first embodiment according to the present invention;

Figure 5 is a schematic perspective view showing a door liner of a second embodiment of a refrigerator gasket fastening structure according to the present invention.

Figure 6a is a schematic perspective view showing a lower mold for manufacturing a door liner of a second embodiment according to the present invention.

FIG. 6B is a partial cross-sectional view taken along line C-C 'of FIG. 6A showing a state in which an upper mold and a lower mold are disposed to manufacture a door liner of a second embodiment according to the present invention;

Explanation of symbols on the main parts of the drawings

10: gasket 12: magnetic force generating portion

14: blocking portion 16: mounting portion

16a: projection 16b: distal end

30: door 32: door liner

32a, 32a ': Jamming jaw 32b: Insertion groove

32c: through hole 34: door iron plate

M1, M2: Mold F: Molten liquid

In order to achieve the above object, the refrigerator gasket fastening structure according to the present invention, in the gasket fastening structure of the refrigerator door, the front end portion and a pair of inclined protrusions integrally formed on the mounting portion formed on the lower end of the gasket, the door is coupled to The liner is characterized in that the insertion groove, and the through-hole for forming the protruding molded one or more locking step and the locking step is formed.

According to the above configuration, since the mounting projection of the gasket is supported by a plurality of locking jaws formed in the insertion groove of the door liner, the gasket is not removed from the door liner. Therefore, there is an advantage that can prevent the leakage of cold air and inflow of external air due to the removal of the gasket.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a schematic cross-sectional view showing a first embodiment of the gasket fastening structure of the refrigerator according to the present invention, Figure 3 is a schematic perspective view showing a door liner 32 of the first embodiment according to the present invention. The structure of the gasket 10 similar to the conventional structure is demonstrated with the same code | symbol.

As shown, the gasket 10 according to the present invention includes a magnetic force generating unit 12 that is in close contact with the front surface of the main body of the refrigerator by magnetic force, and the inside of the refrigerator in a state where the magnetic force generating unit 12 is in close contact with the magnetic force generating unit 12. It is configured to include a block 14 for separating the outside, and the mounting portion 16 for mounting on the door liner 32.

The mounting portion 16 is a portion to be mounted in the insertion groove 32b of the door liner 32 provided inside the iron plate 34 of the door 30. As described above, the mounting portion 16 has a pointed tip portion 16b with an arrow shape to facilitate insertion into the insertion groove 32b as a whole. In addition, the pair of protrusions 16a formed by the inclined end portions 16b extending inclined upward and to the left and right may serve to prevent the mounting portion 16 from being removed from the door liner 32.

On the other hand, as shown in Figure 3, the insertion groove 32b of the door liner 32 according to the present invention is formed with a plurality of locking jaw (32a). That is, the plurality of places of the insertion groove 32b of the door liner 32 formed in the longitudinal direction is provided with a locking projection 32a protruding from the upper end side of the insertion groove 32b toward the center of the insertion groove 32b. have. The locking step 32a is formed to face left and right, and serves to support the left and right protrusions 16a (see FIG. 2) of the inserted mounting portion 16.

In addition, the transmission hole 32c formed at the lower side of the locking step 32a may include the locking step 32a of the insertion groove 32b in the process of manufacturing the door liner 32 according to the present invention using a mold. The mold is intended to be demoldable while forming the mold. Details will be described later. Another function of the penetration hole 32c is, as shown in FIG. 2, in a state in which the mounting portion 16 of the gasket 10 (see FIG. 2) is inserted into the insertion groove 32b of the door liner 32. When the foam stock solution for thermal insulation is injected into the space formed by the door liner 32 and the door griddle 34, the foam stock solution also penetrates into the insertion groove 32b. As the foaming stock solution soaked into the insertion groove 32b as described above is hardened, the mounting portion 16 of the gasket 10 inserted into the insertion groove 32b is strongly fixed, and the thermal insulation effect of the door 30 is improved. To improve.

Hereinafter, a manufacturing method of the door liner of the first embodiment according to the present invention will be described with reference to FIGS. 4A to 4C. As shown, the door liner according to the present invention is characterized by being manufactured using a mold, not a vacuum forming method. That is, the molten liquid F of ABS, which forms the door liner, etc. is positioned between the upper mold M1 and the lower mold M2 to be extruded.

4A is a schematic perspective view of the lower mold M2, and the line A-A 'is a portion where the locking step 32a (see FIG. 3) is formed. Figure 4b is a partial cross-sectional view taken along the line A-A 'of Figure 4a showing the upper mold (M1) and the lower mold (M2) in order to manufacture the door liner of the first embodiment according to the present invention, Figure 4c 4B is a partial cross-sectional view taken along line B-B 'of FIG. 4A showing a state in which the upper mold M1 and the lower mold M2 are disposed to manufacture the door liner of the first embodiment according to the present invention.

As shown in FIG. 4A, the lower mold M2 protrudes toward the center of the lower mold M2 so that the locking step 32a (see FIG. 3) is formed. However, the width of the upper space of the lower mold M2 should be designed to be equal to or wider than the width of the lower space so that the upper mold M1 (see FIG. 4B) that engages with the lower mold M2 can be demoulded. . Therefore, the through hole forming section T in which the through holes 32c are formed is defined in the upper mold M1 and the lower mold M2 such that the locking step 32a is formed while satisfying the above conditions. . And, as shown in Figure 4b when the upper mold (M1) and the lower mold (M2) is disposed, the molten liquid in the through hole forming section (T) of the upper mold (M1) and the lower mold (M2). It is designed so that (F) does not penetrate.

Hereinafter, with reference to the accompanying drawings, the operation relationship of the gasket fastening structure of the refrigerator according to the present invention will be described.

As shown in FIG. 2, the mounting portion 16 of the gasket 14 is pushed into the insertion groove 32b of the door liner 32 coupled to the inside of the iron plate 34 of the door 30. At this time, even if the width of the upper portion of the mounting portion 16 including the left and right protrusions 16a is larger than the width of the insertion groove 32b, the tip portion 16a of the mounting portion 16 is pointed and made of synthetic resin or rubber material. Since the gasket 10 is elastic, the gasket 10 may be inserted.

However, the mounting portion 16 of the gasket 10 once inserted into the insertion groove 32b is not removed by the catching jaw 32a of the insertion groove 32b. This means that even when the gasket 10 tries to move away from the insertion groove 32b, the left and right projections 16a of the mounting portion 16 of the gasket 10 are formed at the left and right sides of the upper end of the insertion groove 32b. Because it is caught). In this case, the gasket 10 is not removed from the insertion groove 32b, thereby preventing cold air leakage and inflow of external air generated by the gasket removal.

Meanwhile, as described above, the mounting portion 16 of the gasket 10 is inserted into the insertion groove 32b of the door liner 32, and then foamed in a space composed of the door liner 32 and the door iron plate 34. When the stock solution is injected, the foam stock solution penetrates into the insertion groove 32b through the through hole 32c. As the above-mentioned foamed crude liquid permeated into the insertion groove 32b is cured together with the mounting portion 16 of the gasket 10 inserted into the insertion groove 32b, the separation of the mounting portion 16 of the gasket 10 is prevented. It can be effectively prevented. In addition, since the insertion groove 32b is also filled with a heat insulating material as described above, there is an advantage that can increase the heat insulating effect of the door (30).

5 shows a door liner 32 of a second embodiment of a refrigerator gasket fastening structure according to the present invention. The second embodiment is characterized in that the locking step (32a ') is formed to be inclined downward. If the locking step 32a 'is formed to be inclined downward as described above, the mounting portion 16 of the gasket 10 of FIG. 2 can be easily inserted into the insertion groove 32b of the door liner 32. There is this.

Fig. 6A is a schematic perspective view showing the lower mold M2 'for manufacturing the door liner 32 (see Fig. 5) of the second embodiment according to the present invention, wherein the door liner 32 (see Fig. 5) is engaged. A part in which the jaw 32a '(refer FIG. 5) is shape | molded, ie, the C-C' line | wire part, is formed inclined downward.

FIG. 6B is a schematic sectional view taken along the line C-C 'of FIG. 6A showing a state in which the upper mold M1' and the lower mold M2 'are disposed to manufacture the door liner of the second embodiment of the present invention. As described above, it is the same as the first embodiment according to the present invention, except that the locking step 32a '(see FIG. 5) of the door liner 32 (see FIG. 5) is formed to be inclined downward. Is omitted.

As described above, the present invention prevents the gasket from being removed by forming a plurality of locking jaws in the door liner insertion groove into which the gasket mounting portion is inserted, thereby preventing the refrigerator cold air leakage and the inflow of external air. have.

Claims (1)

In the gasket fastening structure of the refrigerator door, Forming a pair of inclined protrusions integrally with the tip portion of the mounting portion formed at the bottom of the gasket, and the door liner coupled thereto forms an insertion groove, one or more protrusions and a through hole for forming the protrusion Gasket fastening structure characterized in.