KR100949172B1 - A door cover's hinge structure of washer and the same die - Google Patents

Abstract

The hinge structure of the washing machine cover is installed on the upper side of the main body in a washing machine cover including a rear lead and a hinge pin formed integrally at the front end, and a front lead having a hinge hook coupled to the rear lead. In

The hinge hanger is formed to surround the lower side of the hinge pin and is opened upward to form a first hinge member protruding from the lower surface of the front lid, and formed on the side of the first hinge member to surround the upper side of the hinge pin. Proposed a mold for injection molding the washing machine cover configured as described above, the second hinge member having a lower opening, since the hinge is formed integrally when the front lid is injected, a separate inclined pin is not required. In addition to the reduction, the work is simplified and productivity is improved.

Washing machine, washing tank, inner tank, outer tub, cover, hinge, mold, protrusion, cover, lead

Description

Hinge structure of the washer cover and its mold {a door cover's hinge structure of washer and the same die}             

1 is a plan view showing a washing machine according to the prior art,

2 is a cross-sectional view showing a washing machine cover according to the prior art,

3 is a bottom perspective view showing an enlarged hinge structure of a cover according to the prior art,

4 is a cross-sectional view schematically showing a mold of a washing machine cover according to the prior art;

5 is a perspective view of a washing machine according to the present invention;

6 is a sectional view showing a cover of a washing machine according to the present invention;

7 is a perspective view showing a hinge structure of a washing machine cover according to the present invention;

8 is a configuration diagram showing a mold of the washing machine cover according to the present invention;

9a is a cross-sectional view schematically showing a mold in which the first hinge member of the washing machine cover is ejected according to the present invention;

Figure 9b is a simplified cross-sectional view showing a mold in which the second hinge member of the washing machine cover according to the present invention,

10 is a perspective view showing a hinge structure of a washing machine cover according to another embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

50: cabinet 52: inner

54: top cover 56: back cover

57: water supply hose 58: drainage hose

60: cover 62: rear lid

64: front lid 66: handle portion

67: bend 68: decor panel

70 hinge hinge 72: first hinge member

74: second hinge member 80: fixed side template

82: trough portion 83: lower projection

84: lower outer groove 85: movable side template

87: upper projection 88: upper outer projection

P: hinge pin

The present invention relates to a cover of a washing machine comprising a front lid having a hinge hook which is integrally formed by an injection mold and rotatably coupled to a rear lid, and more particularly, when the injection molding of the front lid is performed. The present invention relates to a hinge structure of a washing machine cover and a mold thereof, in which a structure of the hinge hanger is improved so that an undercut generated in a hole is not generated.

In general, a washing machine is a machine that removes stains on laundry by applying a mechanical action using electricity to form a rotating water flow in the wash water, and the upper part of the case forming the outer portion of the washing machine may be able to withdraw the laundry into the washing tank. The input hole is formed so that the door cover is rotatably installed to prevent the laundry or the wash water from being separated, thereby opening and closing the input hole.

1 is a plan view showing a washing machine according to the prior art, Figure 2 is a cross-sectional view showing a washing machine cover according to the prior art, Figure 3 is a bottom perspective view showing an enlarged hinge structure of the cover according to the prior art.

1 to 3, the conventional washing machine cover 20 is rotatably installed on the upper side of the cabinet 12, the rear lead 22 is formed integrally with a hinge pin at the front end, and the rear lead It is composed of a front lead 24, the hinge hook 30 is formed to be coupled to the 22 folded.

In addition, a handle portion 26 having a predetermined space is formed at one side of the front lid 24 so that the user's hand can be gripped when the cover 20 is opened and closed.

The front lead 24 is a horizontal portion 24a covering the first half of the input hole and a vertical portion 24b formed perpendicular to the rear end of the horizontal portion 24a to prevent sagging of the horizontal portion 24a. Is done. On the other hand, the hinge hanger 30 is formed in a plurality of one side of the vertical portion (24b), the hinge hanger 30 is formed with a reinforcing rib 32 so that the strength can be reinforced.

Here, the front lid 24 is formed of a transparent material for improving aesthetics and checking the progress of washing, the reinforcing rib 32 is formed to be inclined to the vertical portion 24b to minimize the visible portion from the front. .

The front lid configured as described above is injection molded by a mold as follows.

4 is a cross-sectional view schematically showing a mold of a washing machine cover according to the prior art, wherein a conventional washing machine cover 20 is supported on a working surface to form a lower side surface of the front lid 24. And a movable side template 45 for forming an upper surface of the front lid 24.

As described above, the front lead 24 which is injection molded by a mold has an inclined pin 47 for molding the hole shape of the hinge hanger 30 and the reinforcing rib 32 on one side of the fixed side template 40. Assembled so as to be detachable, the front lead 24 is taken out to be separated.

However, the hinge structure of the washing machine cover according to the related art and the mold thereof have an undercut C due to the position of the inclined pin 47 on the bottom of the front lid 24. The front lid 24 is Molding with transparent material has been a factor to hurt the aesthetics.                         

Thus, although the above-mentioned undercut C is not easily visible in appearance, a plurality of stripe stepped portions D are provided at the rear end of the front lid 24, but a fundamental problem solution has not been proposed. .

The present invention has been made in order to solve the above problems of the prior art, the hinge is formed integrally during the injection molding of the front lid is not required a separate inclined pin to reduce the number of molds, as well as simplify the work productivity It is an object of the present invention to provide a hinge structure of a washing machine cover and a mold thereof, in which a beautiful surface is improved since the surface is cleanly finished without undercuts.

The hinge structure of the washing machine cover according to the present invention for solving the above problems is rotatably installed on the upper side of the main body and a hinge pin is formed integrally with the hinge pin at the front end, the hinge hook is formed to be folded to be coupled to the rear lead In the cover of the washing machine including a front lid,

The hinge hanger is formed to surround the lower side of the hinge pin and is opened upward to form a first hinge member protruding from the lower surface of the front lid, and formed on the side of the first hinge member to surround the upper side of the hinge pin. It is characterized by consisting of the second hinge member is opened downward.                     

Moreover, the metal mold | die of the washing machine cover which concerns on this invention is a metal mold | die of the washing machine cover comprised from the fixed side template and the movable side template,

The fixed side template has an upper protrusion which is opened upward so that the lower side of the hinge pin is in contact with one side to form a first hinge member having a downward groove, and the movable side template corresponds to the upper protrusion on one side thereof. The lower protrusion is opened downwardly to contact the upper side of the hinge pin to form a second hinge member having an upward groove, and upwardly protruded.

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

5 is a perspective view showing a washing machine according to the present invention, Figure 6 is a cross-sectional view showing a cover of the washing machine according to the present invention.

In the washing machine according to the present invention, as illustrated in FIGS. 5 and 6, an input hole is formed in the upper part of the cabinet 50 forming the outer portion of the washing machine so as to withdraw the laundry into the washing tank, and the laundry in the input hole. In order to prevent the wash water from flowing out, the cover 60 is rotatably provided with a top cover 54, and a rear back cover 56 is provided at the rear to protect the electrical equipment mounted in the cabinet 50. Is mounted.

The washing tank is fixed to the cabinet 50 by a plurality of hook members, and is connected to a water supply hose 57 and a drain hose 58 so that the washing water is supplied / drained by the tub, and the outer tank ( It is made of an inner tank 52 rotatably disposed inside the washing tank to wash the laundry.                     

On the outer circumferential surface of the inner tank 52, a hand 52a for washing water of the outer tank (not shown) is formed, and a bottom of the inner tank 52 is equipped with a pulsator for forming a washing water flow in the washing water.

The washing machine configured as described above is configured to selectively wash the inner tub 52 or the pulsator by the rotation of the motor mounted on the lower side of the outer tub, and perform the washing process.

The cover 60 is rotatably installed at an upper side of the cabinet 50 and has a hinge pin P integrally formed with a hinge pin P at a front end thereof, and a hinge hook coupled to the rear lead 62 to be folded. It consists of the front lid 64 in which 70 was formed.

In addition, a handle 66 having a predetermined space is formed at one side of the front lid 64 so that the user's hand can be gripped when the cover 60 is opened and closed.

The front lead 64 is a horizontal portion 64a covering the first half of the input hole and a vertical portion 64b formed perpendicular to the rear end of the horizontal portion 64a to prevent sagging of the horizontal portion 64a. Is done.

7 is a perspective view showing a hinge structure of a washing machine cover according to the present invention, wherein the hinge hanger 70 has a first hinge member 72 or a second hinge member which respectively covers an upper side or a lower side of the hinge pin P. Referring to FIG. The first hinge member 72 protrudes from the vertical portion 64b of the front lead 64 and is formed to surround the upper side of the hinge pin P, but is formed to open downward. do. And, the second hinge member 74 is formed on the side of the first hinge member 72 is formed to surround the lower side of the hinge pin (P) is formed so that the upper side is open.

Here, the first hinge member 72 is arranged in a plurality of rows, the second hinge member 74 is arranged between the first hinge member 72, and the inner peripheral surface of the first hinge member 72 and The inner circumferential surface of the second hinge member 74 forms one hole h.

That is, the hole (h) formed of the first hinge member (72) and the second hinge member (74) are formed integrally with or close to each other, or are formed in close proximity to the first hinge member (72). By inserting the hinge pin (P), the lower side is supported as the first hinge member 72, and the upper side is supported by the second hinge member 74, so that smooth rotation is possible.

On the other hand, the second hinge member 74 is extended to the horizontal portion (64a) of the front lead 64 can achieve the effect of strength reinforcement.

The front lid 64 configured as described above has a bent portion 67 having an opening hole 67a formed therein so that a mold protrusion for forming an inner circumferential surface of the second hinge member 74 is inserted above the rear end of the horizontal portion 64b. It is formed, the bent portion 67 is equipped with a decor panel 68 of opaque material of various colors, it is made to shield the opening hole 67a and at the same time add a decorative effect.

8 is a configuration diagram showing a mold of a washing machine cover according to the present invention, Figure 9a is a cross-sectional view showing a simplified mold in which the first hinge member of the washing machine cover according to the present invention, Figure 9b is a present invention As a simplified cross-sectional view of a mold into which the second hinge member of the washing machine cover is injected, the hinge structure of the washing machine cover according to the present invention configured as described above is manufactured by the following injection molding mold.                     

The mold of the washing machine cover 60 according to the present invention comprises a fixed side template 80 supported on a working surface and a movable side template 85 spaced apart from the fixed side template 80 by a predetermined interval. The front lid 64 is injection molded by injecting molten resin between the fixed side template 80 and the movable side template 85.

The upper side 87 of the movable side template 85 is opened so that the lower side of the hinge pin P is in contact with one side, and the upper protrusion 87 protruding downward to form the inner circumferential surface of the first hinge member 72. The side plate 80 is provided with a groove portion 82 in which the upper protrusion 87 is inserted in correspondence with the upper protrusion 87 on one side thereof, and a hinge pin P is formed on the bottom surface of the groove portion 82. A lower protrusion 83 that opens downward to contact the upper side to form an inner circumferential surface of the second hinge member 74 is protruded upward.

On the other hand, the fixed side template 80 is spaced apart a predetermined distance from the front end of the upper projection 87 on one side of the bottom surface of the trough portion 82 so that the lower outer peripheral surface of the lower hinge surface of the first hinge member 72 is formed ( 84 is formed, and the upper outer projection 88 is formed integrally spaced apart a predetermined distance from the tip of the upper projection 87 to form the upper outer peripheral surface of the first hinge member 72.

Looking at the action of the washing machine cover mold according to the present invention configured as described above are as follows.

First, the fixed side template 80 is supported on the working surface so that the cover 60 of the washing machine is injection-molded and the nozzle of the injection machine is inserted into the space between the fixed side template 80 and the movable side template 85 spaced a predetermined distance. Inject molten resin through

Thereafter, when the injection of the molten resin is completed, the molding is completed by cooling the fixed side template 80 and the movable side template 85.

When the molding of the washing machine cover 60 is completed as described above, the movable side template 85 is moved upward to separate the fixed side template 80 and the movable side template 85 and to take out the washing machine cover 60. Let's do it.

At this time, the washing machine cover 60 is formed with a downward groove which is opened upward by the upper protrusion 87 protruding from the upper side of the fixed side template 80, protruding from the lower side of the movable side template (85). An upward groove having a lower opening formed by a lower protrusion 83 is formed, and the front lead 64 is formed through a hinge pin P integrally formed in the rear lead 62 between the downward groove and the upward groove. And the rear lid 62 are foldably coupled.

As described above, the hinge structure of the washing machine cover and the mold thereof according to the present invention have been described with reference to the illustrated drawings. However, the present invention is not limited by the embodiments and drawings disclosed herein, and the skilled person within the technical scope of the present invention. Of course, various modifications can be made, including materials.

10 is a perspective view showing a hinge structure of a washing machine cover according to another embodiment of the present invention.

In the hinge structure of the washing machine cover according to another embodiment, the arrangement order of the first hinge member and the second hinge member may be changed.                     

For example, the hinge hanger 170 is composed of a first hinge member 172 or a second hinge member 174 surrounding the upper or lower side of the hinge pin, respectively, the first hinge member 172 is the front It protrudes from the vertical portion 164b of the lead 164, is formed to surround the upper side of the hinge pin, but is formed to open downward. In addition, the second hinge member 174 is formed on the side of the first hinge member 172 to surround the lower side of the hinge pin, but is formed to be open upward.

Here, the second hinge member 174 is arranged in a plurality of rows, the first hinge member 172 is arranged between the second hinge member 174, and the inner peripheral surface of the first hinge member 172 and An inner circumferential surface of the second hinge member 174 forms one hole h '.

The hinge structure of the washing machine cover according to the present invention configured as described above is the hinge hook is formed so as to surround the lower side of the hinge pin and the top is open, the first hinge member protruding from the lower surface of the front lid, the first hinge The second hinge member is formed on the side of the member to surround the upper side of the hinge pin and is opened downward. Since the hinge is integrally formed when the front lead is injected, the number of molds is reduced because a separate inclined pin is not required. Of course, the work is simplified to increase productivity.

Claims (5)

A washing machine cover which is rotatably installed on the upper side of the main body and includes a rear lead in which a hinge pin is integrally formed at the front end, and a front lead in which the hinge pin is inserted to be coupled to the rear lead and folded; And The hinge hook, A first hinge member extending from the front lead and having an end portion opened downward to surround an upper side of the hinge pin; And a second hinge member formed on a side surface of the first hinge member and having an end portion upwardly open to surround a lower side of the hinge pin. The front lead is, An opening hole formed by a mold protrusion inserted during injection molding to mold the second hinge member, And a decorative panel mounted on the front lid to shield the opening hole. The method of claim 1, The first hinge member is a washing machine extending from the horizontal portion and the vertical portion of the front lid so that the strength is reinforced. delete delete delete

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