KR100730938B1 - Dial buton for a drum-type washing machine - Google Patents

Abstract

Disclosed is a dial button for a drum washing machine capable of preventing damage to a diamond button caused by an external impact. A button fixture consisting of a body portion and a fixed portion is coupled to the rotary switch. At the tip of the button fixture, a button actuator consisting of an actuating part into which an elastic spring is inserted and a fixing part inserted therein, a guide member positioned on an open side of the actuating part, and an actuating body part integrally formed on one surface of the actuating part is movable. To be combined. The tip of the button operating port is press-coupled to the operating body portion on one side of the opening, and the button adjustment mechanism located on the control panel is coupled. With such a configuration, when using a drum washing machine, it is convenient to use the dial button because it is necessary to protrude the button control knob of the dial button to the outside of the control panel and select a course to be washed. It is possible to prevent the breakage of the dial button and rotary switch due to carelessness and other parts by storing the button control knob of the dial button protruding out of the control panel into the inside of the control panel, thereby preventing consumer damage to the product. Can improve the reliability.

Drum, Washing Machine, Dial, Button

Description

Dial button for drum washing machine {DIAL BUTON FOR A DRUM-TYPE WASHING MACHINE}

1 is a perspective view showing an example of a drum washing machine having a conventional structure;

2 is a cross-sectional view showing a state in which a conventional dial button is coupled to a circuit board;

3 is an exploded perspective view of a dial button for a drum washing machine according to the present invention;

4 is a cross-sectional view showing a state in which a dial button is coupled to a circuit board according to the present invention;

5 and 6 are front views showing the operating state diagram of the diamond button according to the present invention; And

7 and 8 are cross-sectional views showing the operating state diagram of the diamond button according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10 dial button 20 button fixture

21: body portion 21A: fitting hole

22: fixing portion 23: spring coupling protrusion

24: spring coupling groove 26: coupling hole

30: button operating port 31: operating part

31A: Operation groove 32: Guide member

33: guide protrusion 34: guide flight guide

35: guide piece control projection 36: guide groove

36A: First Inclination Unit 36B: Second Inclination Unit

37: Guide piece 37A: Fixed end

37B: mobile end 39: working body

40: elastic spring 50: button fixture

60: rotary switch 90: control panel

The present invention relates to a dial button for a drum washing machine, and in particular, to improve the structure of the dial button installed on the control panel and coupled to the rotary switch, to prevent damage to the dial button and the rotary switch due to impact, and to improve the reliability of the product. It relates to a dial button for a drum washing machine.

In general, the drum washing machine is configured to rotate the cylindrical drum from the inside of the washing tank, while washing is carried out by dropping the laundry from the top to the bottom of the drum in such a process, the damage caused by the twist of the laundry or the amount of the wash water is pulsing It is relatively small compared to a washing machine of a data type.

1 is a perspective view showing an example of a drum washing machine having a conventional structure, such a washing machine (A), while the laundry is put in and withdrawn in the front center of the front cover 100, while the washing state can be confirmed The large door 110 is coupled to be opened and closed to the front so that the upper drawer 120 is coupled to the front side so that the laundry drawer 120 for storing laundry additives such as detergent and fabric softener is retractable forward.

In addition, one side of the detergent drawer 120, there are a plurality of buttons 140 for selecting the function of the drum washing machine (A) and intermittent operation and a dial button 150 for selecting one of the course of the washing administration course. While being coupled, the control panel 130 to which the display means 160 for displaying the washing state is attached is coupled.

Here, the dial button 150 is made of a transparent plastic injection molding and an opaque rapid injection molding to enhance the aesthetic appearance.

On the other hand, the back of the control panel 130 is coupled to a printed circuit board with a plurality of parts, including a rotary switch that rotates in accordance with the operation of the dial button 150.

The printed circuit board is an electrical component that is electrically connected to a microcomputer that controls the operation of a washing machine and receives a washing course or displays a washing progress.

2 is a cross-sectional view showing a state in which a conventional dial button is coupled to a printed circuit board, and a washing course input electric component on a printed circuit board 170 installed on the back of the control panel 130, and a standard course and a wool / lingerie course. One of the courses, such as a boiled course, is selected by a rotary method, and is equipped with a rotary switch 180. One end of the rotary switch 180 is located outside the control panel 130 to rotate the rotary switch 180. The dial button 150 for operation is coupled.

At this time, the dial button 150 is a body portion 152 protruding to the outside of the control panel 130, as a fastening portion 154 integrally formed on the back of the body portion 152 and coupled to the rotary switch 180 Is done.

Subsequently, at the outer circumference of the rotary switch 180, the light emitting diode holder 190 is coupled to the printed circuit board 170.

In the conventional drum washing machine (A) configured as described above, the role of the dial button 150 is as follows.

The user rotates the dial button 150 protruding on the control panel 130 to a course to be washed among a plurality of courses. Then, the rotary switch 180 coupled to the fastening portion 154 of the dial button 150 is rotated, and the contact is connected by the rotation of the rotary switch 180 to perform a function of a course that the user wants to wash. do.

However, although the conventional dial button 150 rotates the rotary switch 180 to perform a function of a course that a user wants to wash, the body 152 of the dial button 150 is external to the control panel 130. When exposed to the user and other objects, the dial button 150 is deformed and damaged by the shock, as well as the rotary switch 180 coupled with the fastening portion 154 of the dial button 150 is damaged. There is a problem.

The present invention has been made to solve the problems of the prior art as described above, the technical problem of the present invention is to improve the structure of the dial button is installed in the control panel and coupled to the rotary switch by the impact of the dial button and the rotary switch It is an object of the present invention to provide a dial button for a drum washing machine that can prevent damage, enhance the appearance of the washing machine, and improve the reliability of the product.

In order to achieve the above object, the present invention,

As a dial button to operate a rotary switch,

Body portion formed with a fitting hole in the center, integrally formed to protrude on one side of the body portion and a fixed portion formed with a spring coupling protrusion having a spring fitting groove therein, communicating with the fitting hole in the fixing portion and the rotary switch is coupled A button fixture having a coupling hole formed therein;

An operating groove part is formed therein so that the fixing part can be coupled, and an operating part having one side opened, a guide member formed on one side of the opening of the operating part, and a button formed of an operating body part integrally formed on one side of the guide member and the operating part. Operating tool;

An elastic spring interposed between the operation groove and the fixed portion; And

The operating body portion is press-fitted therein, and provides a dial button for a drum washing machine, characterized in that it is composed of a cylindrical button adjuster installed in the control panel.

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention having the above characteristics as follows.

Figure 3 is an exploded perspective view of a dial button for a drum washing machine according to the present invention, Figure 4 is a cross-sectional view showing a state in which the dial button according to the invention coupled to the circuit board, the dial button for a drum washing machine according to the present invention is a dial button It is possible to prevent damage to the rotary switch and make the appearance of the washing machine beautiful.

2 and 3, the dial button 10 according to the present invention includes a button fixture 20, a button actuating device 30, an elastic spring 40, and a button adjusting device 50.

The button fixture 20 is coupled to the rotary switch 50 installed on the printed circuit board (P), the body portion 21 and the body portion 21 formed of a circular hole 21A is formed in a circular shape A rotary switch integrally formed on one side and having a spring protrusion 23 having a spring engaging groove 24 therein, and communicating with a fitting hole 21A inside the fixing portion 22, and a rotary switch. It consists of a coupling hole 26 coupled to (60). At this time, a plurality of fixing hooks 25 are formed on one end portion of the outer circumferential surface of the fixing portion 22, and the coupling hole 26 is formed on the expansion portion 26A and the spring coupling protrusion 23 formed on the fixing portion 22. It consists of the narrow part 26B.

The button operating portion 30 is coupled to the button fixture 20, the operation portion 31A is formed therein so that the fixing portion 22 of the button fixture 20 can be coupled to the operating portion (opening one side ( 31, a guide member 32 formed on one side of the opening of the operating portion 31, and the operating body portion 39 formed integrally on one side of the guide member 32 and the operating portion 31. . At this time, the engaging hook 31B corresponding to the fixed hook 25 is formed on the inner peripheral surface of the inlet side 31A of the operating groove 31.

The guide member 32 is integrally protruded in the longitudinal direction on one side of the outer circumferential surface of the actuating portion 31, and a guide protrusion piece 33 having a guide piece guide part 34 formed therein, and one end of the guide protrusion piece 33. It protrudes inward and branches the guide piece guide portion 34 into the first guide portion 34A and the second guide portion 34B, and the first inclined portion 36A and the second on the outer circumferential surface of the working body portion 39 direction. A guide piece control protrusion 35 having a guide groove portion 36 having an inclined portion 36B and a fixed end 37A is formed at one end to be fixed to the button fixing portion 20. The other end is composed of a guide piece 37 formed with a moving end 37B for controlling the operation of the button operation tool 30 while moving along the guide piece guide part 34.

At this time, the first inclined portion 36A constituting the guide groove 36 is formed longer than the length of the second inclined portion 36B. This is to allow the moving end 37B of the guide piece 37 located in the guide groove 36 to move through the second inclined portion 36B when the drum washing machine is to be used. .

The elastic spring 40 is inserted into the operation groove 33 and the spring coupling groove 24 to elastically support the button operating port 30.

The button adjustment port 50 is installed in the control panel 90, one surface is a cylindrical shape sealed, the opening body 39 of the button operating port 30 is press-fitted.

On the other hand, the light emitting diode holder 70 is coupled to the printed circuit board 80 at the outer circumference of the rotary switch 60.

In addition, the button fastener 20, the button actuating device 30 and the button adjusting device 50 is made of a metal material and a synthetic resin material.

Referring to the operation of the present invention configured as described above as follows.

Dial button for the drum washing machine according to the present invention is coupled to the rotary switch installed on the printed circuit board through the hole of the control panel, in the case of using the drum washing machine may be used after protruding to the outside of the control panel by pressing operation. If the drum washing machine is not in use, it can be stored inside the control panel by pressing.

As shown in FIG. 4, the present invention couples the dial button 10 to the printed circuit board 80. That is, the rotary circuit is installed such that any one of a course such as a standard course, a wool / lingerie course, a boiled course, etc. is selectively input to the printed circuit board 80 in a direction in which the printed circuit board 80 faces the control panel 90. The fitting hole 21A and the coupling hole 26 of the button fixture 20 are inserted into the switch 60. Then, the rotary switch 60 is fixedly installed in the expansion part 26A and the narrow part 26B of the engagement hole 26 through the fitting hole 21A.

When the dial button 10 is coupled to the printed circuit board 80, when the printed circuit board 80 is coupled to the control panel 90, the assembly of the dial button 10 is completed. At this time, the button adjustment hole 50 of the dial button 10 is positioned in the fitting hole 92 of the control panel 90.

In the present invention combined as described above, when the user rotates the dial button 10 to the course to be washed out of a plurality of courses, the rotary switch 60 is rotated by the rotation of the dial button 10, the rotary switch The contacts are connected by the rotation of the 60 to perform the function of the course you want to wash.

When the operation state of the dial button according to the present invention used in this way is specifically described as follows.

First, when the button control knob 50 of the dial button 10 is pressed in order to use the drum washing machine, the button actuator 30 is operated by the pressing force of the button regulator 50, and the button actuator 30 is operated. The moving end 37B of the guide piece 37 which is indicated by the hidden line in FIG. 5 and located in the guide groove 36 by the operation of the second inclination part 36B, the second guide part 34B and the guide is shown. While moving along the comfortable inner 34 is located at the other end of the guide protrusion (33), at the same time the button actuator 30 is opened from the button fixture 20 by the elastic force of the elastic spring 40, button adjustment The sphere 50 protrudes out of the control panel 90 (see FIGS. 5 and 7).

At this time, the button actuating device 30 opened from the button fixture 20 is caught by the hook hook 31B of the button actuating device 30 on the fixing hook 25 of the button fastener 20 and is not separated.

In this state, the user may rotate the dial button 10 to the course to be washed and then perform the function of the course to be washed.

When the drum washing machine is not used, the button adjusting device 50 is pressed so that the button adjusting device 50 does not protrude to the outside of the control panel 90.

That is, when the button adjustment mechanism 50 of the dial button 10 protruding to the outside of the control panel 90 is pressed, the button operating mechanism 30 is pressed by the pressing force of the button adjustment mechanism 50. The moving end 37B of the guide piece 37 which is moved to the side and the fixed end 37A is fixed to the button fastener 20 by the movement of the button operating tool 30 through the guide piece guide part 34. The first guide part 34A is moved. In this state, if the button adjusting device 50 is further pressed, the other end of the guide piece 37 located in the first guide part 34A moves along the first inclined part 36A of the guide piece control protrusion 35. While the center of the guide groove 36, that is, between the first inclined portion 36A and the second inclined portion 36B, the movement is stopped, and at the same time, the button fixture 20 and the button operating portion which have been spaced apart. The distance from the (30) is close, the button adjustment opening 40 is moved to the inside of the control panel 90 through the fitting hole 92 of the control panel 90 is not protruded to the outside. Then, the elastic spring 40 is compressed, and the locking hook 25 and the locking hook 31B are released (see FIGS. 6 and 8).

As described above, the dial button of the present invention protrudes the dial button to the outside of the control panel when the drum washing machine is to be used, and when the drum washing machine is not used, the dial button is stored to the inside of the control panel. Prevent damage to buttons and rotary switches.

As described in detail above, in the dial button for a drum washing machine according to the present invention, a dial button positioned on a control panel and coupled to a rotary switch is provided with a button fixture, a button actuator operated by being coupled to a button fixture, and pressed into a button actuator. If you use the drum washing machine with the button control located on the control panel, you can use the dial button because the button control of the dial button protrudes to the outside of the control panel and select the course you want to wash. After using the washing machine, you can store the button control knob of the dial button that protrudes out of the control panel into the inside of the control panel and store it, thereby preventing damage to the dial button and the rotary switch due to inadvertent and other parts. , Consumer confidence in the product There is an effect such that you can improve.

Although the above has been described with reference to a preferred embodiment of the present invention, the present invention is not limited to the above-described embodiment, and those skilled in the art without departing from the spirit of the present invention described in the claims below. Those skilled in the art will readily appreciate that various modifications are possible.

Claims (5)

As a dial button to operate a rotary switch, Body portion formed with a fitting hole in the center, integrally formed to protrude on one side of the body portion and a fixed portion formed with a spring coupling protrusion having a spring fitting groove therein, communicating with the fitting hole in the fixing portion and the rotary switch is coupled A button fixture having a coupling hole formed therein; An operating groove part is formed therein so that the fixing part can be coupled, and an operating part having one side opened, a guide member formed on one side of the opening of the operating part, and a button formed of an operating body part integrally formed on one side of the guide member and the operating part. Operating tool; An elastic spring interposed between the operation groove and the fixed portion; And Dial button for a drum washing machine, characterized in that the operating body is press-fitted to the inside, consisting of a cylindrical button adjustment opening is installed in the control panel. The method according to claim 1, The guide member, A guide protrusion having a protrusion formed at one side of the opening of the operation part and having a guide piece guide portion therein; The guide piece is formed to protrude inside the one end of the guide protrusion piece to branch the guide piece guide portion, and a guide groove portion having a “Ｖ” -shaped guide groove portion having a first inclined portion and a second inclined portion on an outer circumferential surface of the working body portion in a direction Protrusions; And The drum washing machine, characterized in that the fixing end is formed at one end to be fixed to the button fixture, the other end is composed of a guide piece having a mobile end for controlling the operation of the button operation while moving along the guide piece guide portion Dial button. The dial button of claim 2, wherein the first inclined portion of the guide groove portion is longer than the length of the second inclined portion. The dial button for a drum washing machine according to claim 1, wherein the button fixing tool, the button operating tool, and the button adjusting tool are made of metal. The dial button for a drum washing machine according to claim 1, wherein the button fixing tool, the button operating tool and the button adjusting tool are made of a synthetic resin material.

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