KR20040011982A - structure for combination of lower cover cap and lower cover in drum washing machine - Google Patents

Abstract

PURPOSE: Assembling structure of a drain cap for a lower cover in a drum washing machine is provided to reduce noise from vibration by minimizing clearance between a hinge pin and a pin hole, to prevent displacement by the hinge structure, and to restrict brakeage by rotating a drain cap freely. CONSTITUTION: A drain cap(40) is installed in a lower cover(30) of a drum washing machine, and a hook(42) is mounted in the upper part of the drain cap. A hinge pin(43) is formed in both lower ends of the drain cap, and a pin hole(38) is formed in the lower cover. The drain cap is turned by assembling the hinge pin and the pin hole in combining the drain cap with the lower cover. The side of the pin hole is cut to insert the hinge pin and a penetration part(52) is formed in a hole case(50) of the lower cover. The hole case is recessed to insert the hinge pin to the penetration part. Vibration and noise are prevented by assembling the pin hole with the hinge pin without clearance.

Description

Structure for combination of lower cover cap and lower cover in drum washing machine

The present invention relates to a lower cover of a drum washing machine, and more particularly to a drain cap attached to the lower cover of the drum washing machine.

In general, the drum washing method is a method in which the laundry is performed using the friction force of the rotating drum and the laundry by receiving the driving force of the motor while the detergent, the washing water, and the laundry are put in the drum. These don't get tangled with each other, and can be washed and pounded.

1 is a perspective view showing the appearance of a general drum washing machine.

Referring to Figure 1, the drum washing machine (1) is made of a substantially rectangular parallelepiped and the door (2) is formed on the front is configured to put or collect the laundry from the front.

The lower cover 3 is attached to the lower part of the front door of the drum washing machine 1, and the lower cover 3 is formed of a rectangular synthetic resin so as to protect the lower frame (not shown) formed therein. The lower cover 3 is configured to be easily removable in order to draw out the installed drain pipe or to change the position of the drain pipe or to check and clean the inside of the drum washing machine (1).

2 is a perspective view illustrating the lower cover 3.

Referring to Figure 2, the lower cover 3 is formed with a plurality of hooks (not shown) in the upper and lower inner side to be detachable to the lower portion of the drum washing machine (1), one side of the lower cover (3) withdraw the drain pipe The drain cap 31 is attached to it. The drain cap 31 is selectively formed on the left side or the right side of the lower cover 3, and its appearance is substantially rectangular.

2, the drain cap 31 is shown in an open state. Hereinafter, a structure in which the drain cap 31 is coupled to the lower cover 3 will be described.

The drain cap 31 has a guard (311: guard) is formed on the edge is formed slightly concave overall, and the hook 312 is installed on the upper side is formed to be fixed to the lower cover (3) have.

A coupling means is formed at the lower side of the drain cap 31 so that the drain cap 31 is fixedly coupled to the lower cover 3. Looking at the coupling form, the stopper 313 is extended to the lower center of the drain cap 31, the insertion projections 314 are formed on both sides thereof.

The stopper 313 of the drain cap 31 is inserted into the slit 32 of the lower cover 3, and the insertion protrusion 314 is also inserted into the holes 33 on both sides thereof, and then the drain cap 31 is lowered. When pushed to the cover 3 side is engaged by the hook 312. When the hook 312 is released when the drain cap 31 is opened, the drain cap 31 is partially opened while being opened, and the stopper 313 of the lower side is stopped by the slit 32.

The conventional drainage cap coupling structure as described above has the following problems.

First, after the combination there is a lot of play between the stopper 313 and the slit 32, or the insertion protrusion 314 and the projection hole 33, when the washing machine is operated and vibrated, noise was generated by shaking.

Second, the rotation of the drain cap 31 is not free, there is a risk that the drain cap 31 is damaged if the worker inadvertently stepped on or pressed in a state caught by the stopper 313 after the drain cap 31 is opened.

Third, the drain cap 31 is inserted into the slit of the lower cover 3 is fixed by the hook, there is a problem that the drain cap 31 is removed in the process of opening and closing the drain cap 31 because there is no fixed structure other than the hook.

The present invention has been made in order to solve the above-mentioned problems of the prior art, free rotation of the drain cap, preventing the removal of the drain cap and the lower cover drain cap of the drum washing machine that can reduce the noise caused by shaking during operation of the washing machine It is an object to provide a coupling structure.

1 is a perspective view showing the appearance of a general drum washing machine.

Figure 2 is a perspective view showing a lower cover of a conventional drum washing machine.

Figure 3 is a perspective view showing a preferred embodiment of the lower cover of the drum washing machine according to the present invention

Figure 4 is an exploded perspective view showing the separation of the lower cover and the drain cap of the present invention.

** Explanation of symbols for main parts of drawings **

1: drum washing machine 30: lower cover

38: pinhole 40: drain cap

42: hook 43: hinge pin

50: hole case 52: through part

In order to achieve the above object, the present invention provides a structure in which a drain cap is installed on a lower cover of a drum washing machine, wherein a hook is formed on an upper side of a drain cap having a substantially rectangular shape; Hinge pins are formed at both ends of the drain cap; Forming a pin hole into which the hinge pin is inserted at one side of the lower cover; When the drain cap is coupled to the lower cover, the hinge pin is coupled to the pinhole provides a drain cap coupling structure of the lower cover of the drum washing machine, characterized in that the drain cap is rotated.

The structure of this invention is demonstrated in detail, referring an accompanying drawing. For reference, prior to describing the configuration of the present invention, in order to avoid duplication of description, the same reference numerals as those of the prior art will be referred to.

3 is a perspective view showing a preferred embodiment of the lower cover 30 of the drum washing machine 1 according to the present invention.

As shown in the figure, the lower cover 30 is formed in a substantially rectangular rectangular shape, as described above, is mounted on the lower part of the drum washing machine 1 to cover the lower frame (not shown), and if necessary, the drain pipe A drain pipe hole 4 is formed to be drawn out.

The drain pipe hole 4 is formed at one side of the lower cover 30, and when the drain pipe hole 4 is not used, a drain cap 40 is attached to cover the drain pipe hole 4. The drain cap 40 is formed to be opened and closed as needed, in the figure is shown the drain cap 40 is open.

The drain cap 40 shown in FIG. 3 is formed in a substantially rectangular shape with a guard wall 41 around it, and is slightly concave when viewed from the inside, and the hook 42 is opened and closed at an upper side thereof. It is installed. The hook 42 is installed at the upper center to push the drain cap 40 toward the lower cover 30 so that the hook 42 enters the upper side of the hole case 50 and is fixed.

The lower portion of the drain cap 40 is formed with a drain cap coupling means, which is a main part of the present invention, will be described in more detail with reference to FIG.

FIG. 4 is a view illustrating a state in which the drain cap is coupled to the lower cover, in a separated perspective view as shown in direction A of FIG. 3.

Referring to the drawings, hinge pins 43 which serve as a rotating shaft when the drain cap 40 rotates are formed at both ends of the drain cap 40. The hinge pin 43 is formed on both sides of the lower end of the drain cap 40 and is formed in a circular cross section to facilitate rotation.

The hole case 50 of the lower cover 30 to which the drain cap 40 is attached is the same as the size of the drain cap 40 and is concave inward when viewed from the front of the lower cover 30. A circular drain pipe hole 4 is formed in the center of the hole case 50, and the hole case 50 is integrally formed when the lower cover 30 is ejected from the mold or manufactured separately from the lower cover. It welds to (30).

Pinholes 38 into which the hinge pins 43 of the drain cap 40 are inserted are installed at both ends of the hole case 50 of the lower cover 30. The pin hole 38 is a circular hole so that the hinge pin 43 is rotatable, and one side of the pin hole 38 is cut so that the hinge pin 43 can enter.

In the hole portion 50 of the lower cover 30, an adjacent portion where the pinhole 38 is formed is formed with a through portion 52 which is partially cut. The penetrating portion 52 is a space provided for the fixed insertion of the hinge pin 43 of the drain cap 40 into the pin hole 38 from the rear side.

Hereinafter, the process of assembling the drain cap 40 to the lower cover will be described.

First, in order to insert the hinge pin 43 of the drain cap 40 into the pinhole 38 of the lower cover 30, the drain cap 40 is obliquely inserted into the penetrating part so that the hinge pin 43 passes. Pushing the drain cap 40 at an angle like this is because the length of both sides of the drain cap 40 is larger than the hole case 50 because of the hinge pin 43 does not go directly.

Since the hole case 50 has a concave shape as a whole, the hinge pin 43 easily enters between the penetrating portions 52 of the lower both ends. Both hinge pins 43 enter the through-hole 52 and then insert the hinge pins 43 into the pin holes 38. As described above, the pinhole 38 is partially cut off, and the cutout direction thereof is cut toward the rear surface of the lower cover 30.

The hinge pin 43 is pushed into the cutout of the pinhole 38. The pinhole is made of synthetic resin of plastics like the lower cover 30, so that the restoring force is restored without being deformed by applying a certain force. Have. Therefore, when the hinge pin is inserted into the pinhole slightly opens, after the hinge pin 43 is inserted, the hinge pin 43 is prevented from being returned to its original form by the restoring force.

The inner diameter of the pin hole 38 is preferably equal to or slightly larger than the outer diameter of the hinge pin 43, but is preferably tightened so that the hinge pin 43 does not flow much. When the washing machine is rotated when the washing tank rotates, vibration is generated by the load of the laundry or the load of the driving motor. If there is a lot of play between the hinge pin and the pinhole, the drain cap may shake and generate noise. In order to prevent this, it is preferable that there is no play when the pinhole 38 and the hinge pin 43 are coupled to each other.

The drain cap assembled as described above is coupled to the lower cover 30 by the upper hook 42, and then releases the hook 42 to freely rotate. In addition, since there is no limit of rotation, when the drain cap 40 is opened in the open state, the drain cap may reach the bottom, so that the drain cap may not be broken or removed even if the operator exerts excessive force.

The embodiments of the present invention are merely examples for expressing the spirit of the present invention in detail, and it is obvious that the present invention can be applied by modifying the form or the material within the scope of the spirit of the present invention.

First, the rotation of the drain cap is free, and less likely to be damaged even if stepped or pressed by the carelessness of the operator.

Second, the response force to the vibration is lowered when the simple insertion structure is employed in the present invention, by combining the hinge structure, but by minimizing the gap between the hinge pin and the pinhole can reduce vibration or noise when the drum washing machine vibration occurs.

Third, since the hinge structure is adopted, it is less likely to be removed even if it is opened and closed frequently.

Claims (6)

In the structure that the drain cap is installed on the lower cover of the drum washing machine, A hook is formed on an upper side of the drain cap having an approximately rectangular shape; Hinge pins are formed at both ends of the drain cap; Forming a pin hole into which the hinge pin is inserted at one side of the lower cover; When the drain cap is coupled to the lower cover, the hinge pin is coupled to the pinhole so that the drain cap rotates, the drain cover coupling structure of the lower cover of the drum washing machine The method of claim 1, The pinhole has a circular hole is formed therein, one side is cut off the bottom cover drain cap coupling structure of the drum washing machine, characterized in that the hinge pin is inserted into the side of the pinhole. The method according to claim 1 or 2, The pinhole is the bottom cover drainage cap coupling structure of the drum washing machine, characterized in that formed of plastic or synthetic resin The method of claim 1, The lower cover is a drain cap coupling structure of the lower cover of the drum washing machine, characterized in that the hole case formed with a drain pipe hole is attached to the inside. The method according to claim 1 or 4, The drain cap coupling structure of the lower cover of the drum washing machine, characterized in that coupled to the hole case of the lower cover. The method of claim 4, wherein The lower cover drain cap coupling structure of the drum washing machine characterized in that a portion of the lower both ends of the hole case is cut so that the hinge pin is easily inserted when the hinge pin of the drain cap is inserted into the pin hole.