KR20060001155A - A rack discharging structure of a washer - Google Patents

Abstract

The present invention relates to a dishwasher, and more particularly, to a rack take-out structure for automatically dispensing the dish storage rack when the dishwasher door is opened.

Rack extraction structure of the dishwasher according to the present invention tub; A dish storage rack accommodated in the tub and in which dishes are stored; A rack roller mounted on a side of the dish storage rack; At least one pair of rail rollers mounted on the inner side of the tub at upper and lower sides at predetermined intervals; A rail having a predetermined length sandwiched between the rail rollers; And a rail motor connected to the central axis of the rail roller.

By the rack taking out structure of the dishwasher according to the present invention, the user does not need to pull out the rack in which the dishes are stored by hand, and the rack is automatically drawn out when the door is opened.

Rack, rail, rail motor

Description

Rack discharging structure of a washer}

1 is a perspective view showing the internal structure of a conventional dishwasher tub.

Figure 2 is an external perspective view showing a dish washer provided with a rack take-out structure according to the spirit of the present invention.

Figure 3 is a partially enlarged perspective view showing a rail structure according to the spirit of the present invention.

4 is a perspective view showing a rail roller structure according to the present invention.

5 is a cross-sectional view of the rail roller is mounted on the tub.

Figure 6 is a partially enlarged perspective view showing another embodiment of the rack take-out structure according to the spirit of the present invention.

Figure 7 is another embodiment of the rack take-out structure according to the spirit of the present invention.

8 is a circuit diagram for explaining the operation of the rack take-out structure according to the present invention.

Figure 9 is an external perspective view of the dishwasher with a rail motor operation button according to the invention.

<Description of the symbols for the main parts of the drawings>

100: dishwasher 110: tub 120: upper rack

130: lower rack 140: water guide 150: upper nozzle

160: lower nozzle 170: door 180: top cover                 

200: rail 210: rail roller 220: rack roller

230: rail roller gear 240: auxiliary roller 300: rail motor

400: washing motor 500: ejection button 510: ejection button

The present invention relates to a dishwasher, and more particularly, to a rack take-out structure for automatically dispensing the dish storage rack when the dishwasher door is opened.

In general, the dishwasher is a household appliance for washing dishes to remove food waste from the dishes by the water pressure of the washing water sprayed from the upper nozzle and the lower nozzle mounted inside the tub.

1 is a perspective view showing the internal structure of a conventional dish washer tub.

Referring to FIG. 1, the conventional dishwasher 10 includes a tub 11 and a dish storage rack (not shown) mounted on both inner walls of the tub 11 to receive dishes and reciprocate back and forth. A rail 14 and at least one pair of rail rollers 915 supporting upper and lower portions of the rail 14 and allowing the rail 14 to reciprocate back and forth are included.

The tub 11 further includes a water guide 12 through which the washing water is moved, and an injection nozzle 13 branched from the water guide 12 to spray the washing water.                         

As shown, the conventional general dishwasher 10 has rollers formed on both sides of the dish storage rack, and the rollers are inserted into the rack roller seating portions 16 recessed inside the rails 14. Then, the roller of the dish storage rack is reciprocated before and after the rack roller seating portion (16).

In addition, in order to withdraw the dish storage rack from the tub 11, the user must open the door and pull the dish storage rack by hand.

Therefore, when a large amount of dishes are stored in the dish storage rack, there is a disadvantage that the user enters a large force to pull out the dish storage rack. Furthermore, considering that the user who uses the dishwasher is mainly a housewife, it may be a heavy burden for the user to withdraw the dish storage rack containing a large amount of dishes.

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide a dish rack takeout structure that can be automatically drawn out without the user having to pull it out by hand in order to withdraw the dish storage rack from the tub. do.

Rack extraction structure of the dishwasher according to the present invention for achieving the object as described above is a tub; A dish storage rack accommodated in the tub and in which dishes are stored; A rack roller mounted on a side of the dish storage rack; At least one pair of rail rollers mounted on the inner side of the tub at upper and lower sides at predetermined intervals; A rail of a predetermined length sandwiched between the rail rollers; And a rail motor connected to the central axis of any one of the rail rollers.

Rack extraction structure of the dishwasher according to the present invention in another aspect is a tub; A dish storage rack accommodated in the tub and in which dishes are stored; At least one rack roller mounted to a side of the dish storage rack; At least one rail roller mounted horizontally on the inner surface of the tub at predetermined intervals and having gears formed on the outer circumferential surface; A rail into which the rail roller is inserted into a side recess; And a rail motor connected to the central axis of the rail roller.

According to the above structure, even if the user does not pull by hand to draw out the dish storage rack, the dish storage rack is automatically drawn out when the door is opened.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other embodiments included within the scope of other inventive inventions or the scope of the present invention can be easily made by adding, changing, or deleting other elements. I can suggest.

Figure 2 is an external perspective view showing a dish washer provided with a rack take-out structure according to the spirit of the present invention.

Referring to FIG. 2, the dishwasher 100 having a rack take-out structure according to the present invention includes a cabinet 190 (see FIG. 8) forming an exterior, and is surrounded by the inside of the cabinet 190 and has a washing tank therein. The tub 110 is formed, the rail motor 300 is mounted on one side of the tub 110, the door 170 formed in the front portion to open and close the washing tank, and the tub 110 It includes a top cover 180 seated on the upper side.

In addition, the washing tank is accommodated in the upper rack 120 and the lower rack 130, which is accommodated in the dishes, and horizontally mounted on the inner side of the tub 110, the upper rack 120 is the front and rear direction Rail 200 to move to the upper and lower rails 210, respectively mounted on the upper and lower portions of the rail 200, the rail 200 is capable of reciprocating forward and backward.

In addition, the door 170 of the dishwasher 100 is formed on the rear side toward the inside of the tub 110, the steam outlet 112 is formed to allow the water vapor in the tub 110 to escape. In addition, the back of the tub 110, the water guide 140, the washing water pumped from the sump (not shown) mounted on the bottom of the tub 110 is moved, and branched from the water guide 140 to wash water An upper nozzle 150 to be injected and a lower nozzle 160 mounted on the bottom surface of the tub 110 to rotate are included.

The operation of the dishwasher 100 according to the present invention having the above configuration will be described.

First, the door 170 of the dishwasher 100 is opened, and the dishes are stored in the upper rack 120 and / or the lower rack 120, and then the door 170 is closed. Then, after inputting the operating conditions of the dishwasher 100, pressing the start button starts washing.

In detail, the washing water stored in the sump mounted on the bottom of the tub 110 is moved to the water guide 140 by the operation of the washing pump mounted on the bottom or side of the sump. In addition, the washing water rising along the water guide 140 is moved to the upper nozzle 150 and sprayed. A portion of the washing water pumped by the washing pump is moved to the lower nozzle 160 and sprayed into the washing tank. In addition, the dirt on the tableware is separated by the water pressure of the washing water sprayed through the injection nozzles 150 and 160. Then, the sprayed washing water is moved back to the sump with the dirt and drained to the outside. Then, clean washing water is introduced again and the rinsing step is performed. When the rinsing step is completed, the drying and storage steps are performed.

Here, when all the steps are finished, when the user opens the door 170 to take out the dishes, the rail 200 is automatically taken out forward. The principle and function of the rail 200 is automatically taken out will be described later with reference to the drawings.

3 is a partially enlarged perspective view illustrating a rail structure according to the spirit of the present invention.

Referring to FIG. 3, another rail 200 according to the present invention is mounted on an inner side surface of the tub 110. In detail, at least one pair of rail rollers 210 are mounted on the upper side and the lower side of the rail 200. In addition, the rails 200 are inserted between the rail rollers 210.

In more detail, the rail 200 has a cross-sectional shape of the letter "c", the gear 201 is formed on the upper side and the lower side. In addition, the depression of the rail 200 is directed toward the center of the washing tank, and the depression becomes a rack roller seating portion 202 for inserting the rack roller mounted on the side of the upper rack 120.

In addition, gears 211 are formed on an outer circumferential surface of the rail roller 210, and gears 201 formed on upper and lower surfaces of the rail 200 are engaged with each other.

By the above configuration, when the rail roller 210 rotates in a clockwise direction (direction viewed from inside the washing tank), the rail 200 is pulled out forward. Then, when the rail roller 210 rotates in the counterclockwise direction, the rail 200 is introduced into the washing tank again.

Figure 4 is a perspective view showing a rail roller structure according to the present invention, Figure 5 is a cross-sectional view of the rail roller is mounted on the tub.

4 and 5, the rail roller 9210 according to the present invention is formed in pairs in the upper and lower parts. A rail roller gear 230 having a predetermined diameter is mounted to the rear end of the rail roller 9210. Then, the rail roller gear 230 is meshed with each other. In addition, any one of the rail roller gear 9230 is connected to the motor shaft of the rail motor 300, and rotates together with the motor shaft.

In detail, when the rail motor 300 rotates, the rail roller gear 230 connected to the motor shaft of the rail motor 300 also rotates together. When the rail roller gear 230 connected to the motor shaft rotates, the other rail roller gear 230 engaged with the motor shaft also rotates together. Therefore, the rail roller 210 is rotated in directions opposite to each other by the rotation of the rail motor 300.

On the other hand, between the rail roller 210 and the rail roller gear 230 is axially connected with the tub 110 therebetween as shown. In other words, the rail roller 210 is mounted on the inner circumferential surface of the tub 110, and the rail roller gear 230 is mounted on the outer circumferential surface of the tub 110.

Figure 6 is a partially enlarged perspective view showing another embodiment of the rack take-out structure according to the spirit of the present invention.

Referring to FIG. 6, unlike the embodiment described above, the rack takeout structure described below is not formed in pairs in the vertical direction, but two rail rollers 210 are mounted at the front and the rear in the horizontal direction. However, the number of rail rollers mounted in the horizontal direction is not limited.

In detail, the rail roller seating portion 203, which is also recessed in the rail 200, faces the inner surface of the tub, and the rail roller 210 is inserted into the rail roller seating portion 203. Then, the rack roller 220 mounted on the side of the upper rack 120 is coupled to the upper and lower surfaces of the rail 200. In other words, the rails 200 are inserted between the rack rollers 220.

In more detail, the gear teeth 204 are formed on the upper surface of the rail roller seating portion 202, and the gear teeth 211 engaged with the gear teeth 204 are formed on the outer circumferential surface of the rail roller 210. Here, the gear 204 is installed only on the upper side of the rail roller seat 202, so that the rail 200 is easily drawn out and drawn in. In addition, since the load of the upper rack 120 presses the upper surface of the rail 200, the upper surface of the rail roller seating portion 202 and the rail roller 210 are bound, so that the rail roller seating portion Gears 204 are formed only on the upper surface of 202. In addition, the central axis of the rail roller 210 penetrates the side surface of the tub 110 and is coupled to the motor shaft of the rail motor 300 mounted on the outer surface of the tub 110. When the motor shaft of the rail motor 300 rotates, the rail roller 210 also rotates together, and the rail 200 also moves forward or backward by the rotation of the rail roller 210.

7 is another embodiment of a rack take-out structure according to the spirit of the present invention.

Referring to FIG. 7, in the embodiment of FIG. 6, an auxiliary gear 240 that is engaged with the rail roller 210 and the rail roller 210 and rotates is inserted together in the rail roller seating portion 202.

In detail, a gear tooth 241 is formed on an outer circumferential surface of the auxiliary roller 240, and the gear tooth 241 is engaged with the gear tooth 211 of the rail roller 210. In addition, the rotation shaft of the auxiliary roller 240 is mounted on the inner circumferential surface of the tub 110.

In addition, gears 204 are formed on both the upper side and the lower side of the rail roller seat 202. Therefore, the gear teeth 204 formed on the upper surface of the rail roller seating portion 202 are meshed with the gear teeth 211 of the rail roller 210, and the gears formed on the lower surface of the rail roller seating portion 202 are formed. 204 is engaged with the gear 241 of the auxiliary roller 240.

On the other hand, when the rail motor 300 is axially coupled to the rail roller 210 is operated to rotate the motor shaft clockwise (direction seen from the tub outer surface), so that the rail roller 210 also rotates clockwise The auxiliary roller 240 engaged with the rail roller 210 rotates in the counterclockwise direction. In addition, the rails 200 engaged with the rail rollers 210 and the auxiliary rollers 240 are introduced into the tub 110. And, when the motor shaft of the rail motor 300 rotates in the counterclockwise direction, it is apparent from the present invention that the rail 200 is drawn out.

8 is a circuit diagram for explaining the operation of the rack take-out structure according to the present invention.

Referring to FIG. 8, the washing motor 400 and the rail motor 300 connected to the power supply P are connected in parallel. In addition, a micro switch S is connected between the power supply unit P and the motors 300 and 400. When the micro switch S is connected to either the washing motor 400 or the rail motor 300, the micro switch S functions to short-circuit the other. In detail, in the state in which the door 170 of the cleaner 100 is closed, the micro switch is connected to the washing motor 400 to operate the washing motor 400, and when the door 170 is opened, the micro switch ( S) is connected to the rail motor 300 to allow the rail motor 300 to operate. Therefore, when power is applied from the power supply unit P to the dishwasher 100 and the washing operation starts after the door 170 is closed, the rail motor 300 is not operated. On the contrary, when the washing and drying ends, and the user opens the door 170 to take out the dishes, the washing motor 400 does not operate, and the rail motor 300 operates. Therefore, when the user opens the door 170, the rail 200 is automatically drawn out to the upper rack 120 is drawn out.

9 is an external perspective view of a dish washer provided with a rail motor operation button according to the present invention.

9, a button for operating the rail motor 300 in charge of the rack take-out function according to the invention is attached to the side of the cabinet 190.

In detail, the user may not want the rail 200 to be drawn out when the door 170 is opened. Therefore, in order to allow the rail 200 to be drawn out according to the intention of the user, the takeout button 500 and the takeout button 510 are provided on the side of the cabinet 190.

More specifically, the dish washing is completed and the user opens the door 170 and the rail 200 is withdrawn only when the user presses the take-out button 500. When the user presses the blow button 510, the rail 200 is automatically drawn into the washing tank.

By the rack taking out structure of the dishwasher according to the present invention having the above configuration, the user does not need to pull out the rack in which the dishes are stored by hand, and the rack is automatically drawn out when the door is opened. have.

In addition, the switch structure is added, it is possible to determine whether the withdrawal of the rack according to the user's selection. In other words, by the button or switch structure mounted on the outside of the dishwasher cabinet, the rack may be taken out only when the door is opened and the user presses the button or the switch.

Claims (14)

Tub; A dish storage rack accommodated in the tub and in which dishes are stored; A rack roller mounted on a side of the dish storage rack; At least one pair of rail rollers mounted on the inner side of the tub at upper and lower sides at predetermined intervals; A rail having a predetermined length sandwiched between the rail rollers; And And a rail motor connected to one of the central shafts of the rail rollers. The method of claim 1, And a gear tooth is formed on the upper side and / or the lower side of the rail in contact with the rail roller and the rail roller, and is engaged with each other. The method of claim 1, The rail motor is a rack take-out structure of the dishwasher, characterized in that mounted on the outer peripheral surface of the tub. The method of claim 1, The rail motor is a rack take-out structure of the dishwasher, characterized in that the step motor capable of forward and reverse rotation. The method of claim 1, The rack is a rack take-out structure of the dishwasher, characterized in that forming a substantially "C" shape. The method of claim 1, The rack roller is a rack take-out structure of the dishwasher, characterized in that inserted into the side depression of the rail. Tub; A dish storage rack accommodated in the tub and in which dishes are stored; At least one rack roller mounted to a side of the dish storage rack; At least one rail roller mounted horizontally on the inner surface of the tub at predetermined intervals and having gears formed on the outer circumferential surface; A rail into which the rail roller is inserted into a side recess; And And a rail motor connected to the central shaft of the rail roller. The method of claim 7, wherein The rack roller is a rack take-out structure of the dishwasher, characterized in that the two pairs in contact with the upper side and the lower side of the rail. The method of claim 7, wherein The rail has a substantially "c" shape, the rack take-out structure of the dishwasher, characterized in that the gear is formed on the inner upper surface. The method of claim 7, wherein And the gear teeth engage with gears formed on an outer circumferential surface of the rail roller. The method of claim 7, wherein An auxiliary roller mounted on a lower side of the rail roller and engaged with each other; Rack dispensing structure of the dishwasher comprising a rail for receiving the rail roller and the auxiliary roller. The method of claim 11, The rail is a rack take-out structure of the dishwasher, characterized in that the gear is formed on the upper and lower surfaces in contact with the rail roller and the auxiliary roller. The method according to claim 1 or 7, A cabinet surrounding the outer circumferential surface of the tub, An extraction button mounted at one side of the cabinet and allowing the rail to be pulled out; Rack taking-out structure of the dishwasher further comprises a button unit including a blow button for allowing the rail to be drawn into the washing tank. The method according to claim 1 or 7, A door for opening and closing the washing tank, And a micro switch configured to stop the operation of the rail motor when the door is closed and to start the operation when the door is opened.

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