WO2020122521A1 - Dishwasher - Google Patents

Abstract

The present invention provides a dishwasher comprising: a main body for providing a dish-washing space; two guide parts coupled to both side walls of the main body; a first rack which accommodates dishes and which can rotate with respect to the two guide parts; a second rack which accommodates the dishes and which can rotate with respect to the two guide parts; and a reinforcing part for connecting the two guide parts to each other.

Description

dish wash machine

The present invention relates to a dishwasher, and more particularly, to a dishwasher with improved user convenience.

In general, the dishwasher is a household appliance that washes food residues on the surface of the dishes by high-pressure washing water sprayed from the spray nozzle.

The conventional dishwasher is composed of a tub in which a washing tank is formed, and a sump mounted on the bottom of the tub to store washing water. Here, by the pumping action of the washing pump mounted inside the sump, the washing water is moved to the injection nozzle, and the washing water moved to the injection nozzle is injected at high pressure through the injection hole formed at the end of the injection nozzle. Then, the washing water sprayed at the high pressure hits the surface of the tableware, and dirt such as food scraps on the tableware falls to the bottom of the tub.

A dishwasher is usually provided with a plurality of racks, so that each rack is equipped with dishes. In order to store the dishes in the lower rack, there is an inconvenience that the user has to bend over, so prior art US 7,731,805 posts a structure for pulling the lower rack to the top. According to the prior art, in order to store the dishes in the lower rack, a prior operation of pulling up the lower rack must be performed. When moving the rack located at the bottom to the upper side, the user may experience inconvenience due to the shaking of the left and right sides of the rack. In addition, there was no technical concern to change the height of the upper rack.

The present invention is to solve the above problems, to provide a dishwasher that can reduce the shaking of the rack when moving the rack located at the bottom.

The present invention is to provide a dishwasher capable of reducing shake caused when moving a rack located on the upper side and a rack located on the lower side.

The present invention is to provide a dishwasher that is convenient for the user to store the dishes since the user does not have to bend over to store the dishes in the rack installed at the bottom.

In addition, the present invention provides a dishwasher capable of washing dishes even when the rack located at the lower side is moved upward.

The present invention discloses a reinforcing structure capable of reducing shaking when the rack is moved. The reinforcing structure has a three-dimensional shape to connect two guide parts to guide the movement of the rack to each other and to damp vibration generated in various directions. The reinforcing structures are formed to extend in the x-axis, y-axis, and z-axis directions, respectively.

In the present invention, the reinforcing structure is provided at both ends of the two guide parts provided on the left and right sides, so that the two guide parts and the two reinforcing structures form a rectangular shape as a whole.

The present invention includes two racks having different heights, and each rack has a changed height, thereby providing a dishwasher that can be arranged to change positions with each other.

The present invention provides a dishwasher in which racks are not poured while the racks are moved by rotating the racks while the racks are parallel while rotating the upper and lower racks.

Provided is a dishwasher that rotates to change its position by maintaining a unique bowl storage space of each rack when the upper rack and the lower rack are rotated. For example, the rack position is rotated by maintaining the use of the upper rack (storing small size dishes) and the lower rack (storing large size dishes). The upper rack and the lower rack have a structure that rotates with a radius of a different distance from the center of rotation of the guide portion.

The present invention provides a dishwasher capable of reducing the inconvenience of storing dishes by bending or squatting at the waist because the user can raise the lower rack upward to store dishes in the lower rack.

In addition, in the present invention, when the rack is rotated, the collision between the upper rack and the lower rack is prevented, and the positions of the two racks can be exchanged with each other. The moving trajectory of the rack moving forward draws an elliptical trajectory to provide a dishwasher in which two racks can be moved together.

The present invention is a main body providing a washing space for dishes; Two guide parts coupled to both side walls of the body; A first rack in which tableware is stored and provided to be rotatable with respect to the two guide parts; A second rack in which tableware is accommodated and rotatably provided with respect to the two guide parts; And a reinforcing part connecting the two guide parts to each other.

According to the present invention, it is possible to reduce the shaking of the rack when moving the rack located at the bottom. In addition, the present invention can reduce the shaking occurring when the rack located on the upper side and the rack located on the lower side are moved together. When the rack is warped due to the shaking generated when the rack is moved, it may be difficult to move the rack to a desired position, and such warpage can be prevented.

According to the present invention, when moving the rack located at the bottom to the upper side, the user does not have to hold the lower rack, so there is no need to bow down. Therefore, the user's discomfort may be improved because the user's waist is not subjected to excessive action.

In addition, according to the present invention, after moving the rack located at the lower side to the upper side to store the dishes in the rack or to take out the dishes from the rack, the dishes can be washed in that state without changing the height of the rack.

In addition, according to the present invention, since the space for storing dishes stored in the rack is maintained even when the lower rack is moved upward, there is no need to move the dishes stored in the rack.

1 is a front view of a dishwasher according to an embodiment of the present invention.

2 is a view for explaining the interior of FIG. 1;

3 is a control block diagram according to an embodiment.

4 and 5 are views illustrating a process in which two racks exchange positions.

6 is a view for explaining the operation of FIG. 4;

7 is a view for explaining the main parts of an embodiment.

8 is a view illustrating a guide plate.

9 is a view for explaining a rotation trajectory.

10 is a view for explaining the position of the two racks.

11 is a view excluding the guide plate in FIG.

12 is a view for explaining main parts of FIG. 11;

13 is a view for explaining the operation of FIG. 12;

14 is a view specifically explaining the guide unit.

15 is an exploded perspective view of the guide portion.

16 is a view for explaining the interior of the main body according to an embodiment.

17 is a view illustrating a state in which the first rack is located above the second rack.

18 is a view illustrating a state in which the second rack is located above the first rack.

19 is a view illustrating a rack and an injection unit.

20 is a view showing a rack.

21 is a view showing an injection unit.

22 is a view for explaining an embodiment in which the injection unit is coupled to the water supply unit.

23 is a view for explaining another embodiment in which the injection unit is coupled to the water supply unit.

Hereinafter, preferred embodiments of the present invention capable of specifically realizing the above object will be described with reference to the accompanying drawings.

In this process, the size or shape of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. Definitions of these terms should be made based on the contents throughout this specification.

1 is a front view of a dishwasher according to an embodiment of the present invention.

Referring to FIG. 1, in one embodiment, a door 10 for opening and closing a washing space is provided at the front of the dishwasher, and a main body 20 for providing a dish washing space is provided at the rear of the door 10. The door 10 is provided to be rotatable downward about a hinge provided on the lower side of the main body 20. Therefore, the user can access the inside of the main body 10 while rotating the upper side of the door 10 to the lower side after touching a hand on the upper end of the door 10.

A space in which the door 10 can be rotated is provided at a lower front of the main body 20. Therefore, while the lower end of the door 10 is rotated in the space, the door 10 may be rotated.

FIG. 2 is a view for explaining the interior of FIG. 1, and FIG. 4A is a view showing some main parts during a process of moving a rack.

2 and 4A, the inside of the main body 20 will be described with the door open in FIG. 1.

The washing space in which the dishes are washed is provided with a first rack 100 positioned relatively high and a second rack 200 positioned relatively lower than the first rack 100. Of course, the positions of the first rack 100 and the second rack 200 may be changed. The first rack 100 and the second rack 200 are provided with spaces for storing dishes.

The first rack 100 and the second rack 200 are made of wire, and an opening is provided on the upper side to allow a user to mount dishes on the first rack 100 and the second rack 200. Can be.

The main body 20 is provided with a guide portion 300 in which the first rack 100 and the second rack 200 are rotatably coupled, respectively. The first rack 100 is coupled to one end of the guide part 300, and the second rack 200 is coupled to the other end of the guide part 300. When the guide part 300 is rotated, the height and position of each rack is changed while the first rack 100 and the second rack 200 are rotated.

The guide part 300 is provided with a guide rotation center 310, and the guide part 300 is rotated around the guide rotation center 310. The guide rotation center 310 is rotatably provided on the main body 20.

The distance from the guide rotation center 310 to the portion where the first rack 100 is installed in the guide part 300 is the second rack 200 in the guide rotation center 310, the guide part 300 The distance to the part installed in is different.

The second rack 200 secures a space in which larger dishes than the first rack 100 can be stored, so that the user stores relatively small dishes in the first rack 100 and relatively large dishes. Is stored in the second rack 200 to wash the dishes. Accordingly, in a state in which the second rack 200 is located lower than the first rack 100 (the state of FIG. 2 ), the height interval at which the second rack 200 is separated from the first rack 100 is the The first rack 100 is large compared to the height gap dropped on the ceiling of the main body 200. In order to make the height space that can be accommodated in the first rack 100 different from the height space that can be accommodated in the second rack 200, the first rack is centered around the rotation center 310 of the guide part 300. The 100 and the second rack 200 may be disposed at different locations. Since the relatively large tableware is stored in the second rack 200, the dishes stored in the second rack 200 may be heavier than the dishes stored in the first rack 100.

The guide part 300 is provided with a protrusion protruding toward the inner wall of the main body 20. The guide part 300 includes a first protrusion 320 provided adjacent to the first rack 100 and a second protrusion 340 provided adjacent to the second rack 200.

On the inner wall of the main body 200, the first protrusion 320 and the second protrusion 340 are inserted to provide a guide plate 400 in which guide grooves 440 and 420 are guided. The guide plate 400 is disposed to be fixed to the left and right walls of the main body 20, and the guide grooves 440 and 420 are recessed inward, so that the first protrusion 320 and the second protrusion ( 340) can be guided.

The guide grooves 440 and 420 are openings through which the first protrusion 320 and the second protrusion 340 may be introduced into or out of the guide grooves 440 and 420. Is formed.

The guide grooves 440 and 420 include a first guide groove 420 in which the movement trajectory of the first projection 320 is guided, and a second guide groove 440 in which the movement trajectory of the second projection 340 is guided. It includes. The first guide groove 420 and the second guide groove 440 are formed together in the guide plate 400, but the grooves do not overlap each other. Therefore, the protrusion that has entered one of the guide grooves 420 and 440 cannot be moved to the other guide groove.

The entire trajectory of the first guide groove 420 is larger than the trajectory of the second guide groove 440, and the first protrusion 320 guided in the first guide groove 420 is the second guide It is moved in the guide plate 400 while drawing a trajectory larger than the second protrusion 320 guided in the groove 440.

The first guide groove 420 includes a first horizontal groove 422 extending in a horizontal direction and a first vertical groove 424 extending in a vertical direction. Two first horizontal grooves 422 are disposed at both ends based on the first vertical groove 424. An opening for the first protrusion 320 to enter the first guide groove 420 is provided in the first horizontal groove 424. The first vertical groove 424 forms a convex curve trajectory toward the rear, and the first protrusion 320 moves while forming a curved trajectory inside the first vertical groove 424.

The second guide groove 440 includes a second horizontal groove 442 extending in a horizontal direction and a second vertical groove 444 extending in a vertical direction. Two second horizontal grooves 442 are disposed at both ends based on the second vertical grooves 444. An opening for the second protrusion 340 to enter the second guide groove 440 is provided in the second horizontal groove 444. The second vertical groove 444 forms a convex curve trajectory toward the rear, and the second protrusion 340 is moved while forming a curved trajectory inside the second vertical groove 444.

A lower part of the first rack 100 is provided with a first injection unit 700 that moves together when the first rack 100 is moved. The first injection unit 700 may supply water or steam to dishes stored in the first rack 100 by spraying water or steam upwards toward the first rack 100.

When the second rack 200 is moved, a second injection unit 800 is moved below the second rack 200. The second injection unit 800 may supply water or steam to dishes stored in the second rack 200 by spraying water or steam upwards toward the second rack 200.

The main body 200 is provided with a rail 500 for guiding horizontal movement. The rail 500 is disposed at a position facing the guide rotation center 310 of the guide part 300. The rail 500 is provided to have a fixed position.

A cover member 610 and a horizontal driving part 600 are provided while surrounding the rail 500 with the rail 500 interposed therebetween.

The cover member 610 and the horizontal driving part 600 are coupled to each other, and may be moved in the front-rear direction, as guided by the rail 500. The horizontal driving part 600 and the cover member 610 are moved in the horizontal direction along the horizontal direction in which the rail 500 extends.

The horizontal driving part 600 is coupled to the guide part 300, so that the guide part 300 can be moved in the front-rear direction. The guide part 300 is coupled through the rail 500, so that the guide part 300 interferes with the rail 500 when the horizontal driving part 600 and the guide part 300 are moved together. Do not receive

A driving motor 630 that provides power to the horizontal driving unit 600 is provided at a lower end of the horizontal driving unit 600. The driving motor 630 provides rotational force to the horizontal driving unit 600, and when the driving motor 630 is driven to generate rotational force, the horizontal driving unit 600 may be moved in the front-rear direction. The driving motor 630 may selectively provide a driving force for advancing or reversing the horizontal driving part 600 to move the guide part 300 in the front-rear direction. When the guide part 300 is moved in the front-rear direction, rotation of the first rack 100 or the second rack 200 may occur.

The driving motor 630 is provided to be movable together with the horizontal driving unit 600, so that the horizontal driving unit 600 receives the rotational force of the driving motor 630 regardless of the position of the horizontal driving unit 600. It is possible.

A plurality of gears are provided inside the horizontal driving part 600 to transmit the rotational force generated by the driving motor 630 through the gear inside the horizontal driving part 600, so that the horizontal with respect to the rail 500 The driving unit 600 may be implemented to move.

A plurality of gears are also provided inside the guide part 300 so that the horizontality of the first rack 100 and the second rack 200 is maintained while the guide part 300 is rotated, so that the stored tableware Can prevent it from falling off the rack.

The horizontal driving part 600 and the guide part 300 are coupled to the gear of the horizontal driving part 600 so as to engage a gear provided inside the guide part 300 and transmit rotational force. That is, it is possible that one rotation axis among the gears of the horizontal driving part 600 is coupled to the rotation axis of the gear of the guide part 300.

The first rack 100 includes a first guide rail 150 that allows the first rack 100 to be pulled forward. The first rack 100 is supported on both sides by the first guide rail 150, so that the height can be moved forward without changing. The first guide rail 150 is coupled to the guide part 300.

The second rack 200 includes a second guide rail 250 to allow the second rack 200 to be pulled forward. The second rack 200 is supported on both sides by the second guide rail 250, so that the height can be moved forward without changing. The second guide rail 250 is coupled to the guide part 300.

3 is a control block diagram according to an embodiment.

In one embodiment, a detection unit 900 for detecting a user moving one of the racks of the first rack 100 and the second rack 200 is included. The sensing unit 900 may also detect moving the rack located on the upper side. When a specific change is detected after moving the rack located at the upper side, the detection unit 900 transmits to the control unit 1000 that a related signal has occurred. In order to change the height of the rack located at the upper side of the rack, the sensing unit 900 may sense a force applied to the rack accordingly when an action of pressing the rack occurs. The sensing unit 900 may include a hall sensor provided in the main body 20 to detect a change in the position of the rack. Unlike this, the sensing unit 900 is provided on the guide unit 300, and it is also possible to include a sensor that detects whether a user applies a force. At this time, the sensing unit 900 is capable of detecting a force of various sizes and shapes, such as a user pulling the rack located at the upper side forward or pressing it downward.

The control unit 1000 drives the driving motor 630 when the signal set by the user to change the height of the rack is detected by the detection unit 900. When the driving motor 630 is driven, a rotational force is generated in the driving motor 630, and the guide unit 300 may be rotated while the horizontal driving unit 600 is horizontally moved.

4 and 5 are views illustrating a process in which two racks exchange positions.

In FIG. 4, the first rack 100 is disposed on the upper side, and the second rack 200 is disposed on the lower side. On the other hand, in FIG. 5, the second rack 200 is disposed on the upper side, and the first rack 100 is disposed on the lower side.

4 illustrates a process in which the first rack 100 and the second rack 200 change positions with each other while the first rack 100 is disposed on the upper side.

4A to 4I, the first rack 100 may be moved downward and the second rack 200 may be moved upward.

After the user withdraws the first rack 100 forward without changing the height as shown in FIG. 4A, the first rack 100 can be pressed downward to exert a force on the first rack 100.

At this time, the sensing unit 900 senses the force applied to the first rack 100 by the user, and transmits it to the control unit 1000. The control unit 1000 drives the driving motor 630 to provide a force for the horizontal driving unit 600 to be horizontally moved. When the horizontal driving part 600 is moved in the front-rear direction, the guide part 300 is also moved in the front-rear direction. The guide part 300 is freely rotatable, and the rotational trajectory of the guide part 300 is limited by the guide plate 400.

A process in which the guide part 300 is guided to move in the guide plate 400 will be described. The first protrusion 320 is pulled forward from the first horizontal groove 422. Since the movement trajectory of the first protrusion 320 is guided by the first horizontal groove 422, the movement of the guide part 300 follows the predetermined trajectory. At the same time, the second protrusion 340 is moved upward along the second vertical groove 444. At this time, since the second vertical groove 444 is formed convex toward the rear (corresponding to the right side based on FIG. 4 ), the second protrusion 340 is moved while having a convex trajectory toward the rear.

Although the first protrusion 320 has escaped from the first guide groove 420, since the second protrusion 340 is inserted into the second guide groove 440, the movement trajectory is in a restrained state. The movement of the guide part 400 follows a predetermined trajectory. That is, any one of the first protrusion 320 or the second protrusion 340 is always inserted into the guide groove, and rotation can be guided. In addition, the guide rotation center 310 of the guide part 400 is coupled to the horizontal driving part 600, and the horizontal driving part 600 cannot be moved in the vertical direction and can only be moved in the horizontal direction. . Therefore, the guide portion 400 is constrained at two points, so that the movement trajectory can be constant.

Since the driving motor 630 continuously provides rotational force, as the horizontal driving part 600 is moved, the cover member 610 coupled to the horizontal driving part 400 is moved in the horizontal direction. According to FIG. 4G, when the second protrusion 340 moves out of the second vertical groove 444 and moves to the second horizontal groove 442, the first protrusion 320 is the first horizontal groove 442 ) Again.

Therefore, when the second rack 200 is located at the bottom of the user, the user does not need to bend a waist in order to receive dishes in the second rack 200. That is, the user may move the second rack 200 upward to store dishes. At this time, since the second rack 200 is moved upward, the first rack 100 is moved downward.

Even if the second rack 200 moves upward, the distance between the bottom of the second rack 200 and the ceiling of the main body 20 may be maintained to accommodate dishes, so that the second rack 200 On the other hand, relatively large dishes can be stored in comparison with the first rack 100. That is, in order to move the second rack 200 to the upper side, it is not necessary to move the large sized dishes stored in the second rack 200 to the first rack 100 whose position is changed downward. Even if the position of the rack is changed, the storage height for dishes that can be stored in the rack can be maintained.

5 illustrates a process in which the first rack 100 and the second rack 200 change positions with each other while the second rack 200 is disposed on the upper side.

Since the process according to FIG. 5 differs from the process according to FIG. 4, since the second rack 200 has only the difference that the first rack 100 is disposed on the upper side, the contents described in FIG. 4 can be applied. , Repeated explanation is omitted.

While one of the first rack 100 and the second rack 200 is moved forward and moved downward, each rack is moved while forming a trajectory close to an ellipse rather than a circle. While the first rack 100 and the second rack 200 are moved rearward and ascending, the moving distance in the longitudinal direction is shorter than the front trajectory.

Since the first rack 100 and the second rack 200 move together, interference does not occur while the first rack 100 and the second rack 200 are moved.

FIG. 6 is a view for explaining the operation of FIG. 4, and in FIG. 6, it is represented in a perspective view unlike FIG. 4. While the cover member 610 is moved in the front-rear direction together with the guide portion 300, the guide plate 400 is maintained in a stopped state. Accordingly, as the cover member 610 moves relative to the guide plate 400, rotation may occur between the first rack 100 and the second rack 200. In FIG. 6A, the first rack 100 is positioned above the second rack 200, and FIG. 6I is a state where the second rack 200 is positioned above the first rack 100. The present embodiment may provide the user with an environment in which dish washing is possible in two situations in which either the first rack 100 or the second rack 200 is located at the upper side.

7 is a view for explaining the main parts of an embodiment. In FIG. 7, the guide plate 400 is installed on the main body 20, but is illustrated in FIG. 7 for convenience of explanation.

In the main portion of one embodiment, the two guide plates 400 are provided, and the projections 320 and 340 of the guide portion 300 are inserted into the guide grooves 420 and 440 of the guide plate 400. A first wheel 318 in which the first projection 320 is disposed and a second wheel 338 in which the second projection 340 is provided are disposed in the guide part 300. The first wheel 318 and the second wheel 338 are disposed to be rotatable in the guide part 300.

The first guide rail 150 on which the first rack 100 is seated is installed on the first wheel 318 of the guide part 300. The second guide rail 250 on which the second rack 200 is seated is installed on the second wheel 338 of the guide part 300.

The first projection 320 and the second projection 340 are inserted into the plurality of guide grooves 420 and 440 to guide the movement path. As the projection moves along the guide groove, since the movement path of the guide portion 300 is guided, the guide portion 300 can be moved along a predetermined path.

In addition, the first wheel 318 is provided with a first reinforcing portion 1002 to reduce the flow generated when the guide portion 300 is rotated. The first reinforcing part 1002 is disposed to be rotatable with respect to the guide part 300. The first protrusion 320 is formed on one surface of the first wheel 318, and the first reinforcement part 1002 is coupled to the opposite surface of the first wheel 318.

In addition, the second wheel 338 is provided with a second reinforcing portion 1100 to reduce the flow generated when the guide portion 300 is rotated. The second reinforcement unit 1100 is disposed to be rotatable with respect to the guide unit 300. The second protrusion 340 is formed on one surface of the second wheel 338, and the second reinforcement part 1100 is coupled to the opposite surface of the second wheel 338.

Since the first reinforcing part 1002 and the second reinforcing part 1100 connect two guide parts 300, when two guide parts 300 are rotated, left and right shaking is reduced. Can be. That is, since the two guide parts 300 are connected to each other and a three-dimensional structure is formed by the reinforcing parts, the generated shaking can be reduced.

In the guide part 300, the rotation center 310 is disposed between a position where the first wheel 318 and the second wheel 338 are installed. The distance from the rotation center 310 to the first wheel 318 is different from the distance from the rotation center 310 to the second wheel 338. The rotation center 310 is disposed at a position biased to one side, not the center of the guide part 300.

8 is a view illustrating a guide plate. In FIG. 8, one guide plate is illustrated, and two guide plates may be described through the guide plate illustrated in FIG. 8. 8A is a view of the guide plate viewed from the front, and FIG. 8B is a view of the guide plate obliquely. As shown in FIG. 8B, the guide plate is formed of a plate having a thickness, and a groove is formed therebetween, and the portion where the groove is formed is thicker than that of the non- grooved portion.

The guide groove includes a first guide groove 420 through which the first protrusion 320 is inserted to guide a route, and a second guide groove 440 through which the second protrusion 340 is inserted to guide a route. do. The two guide grooves 420 and 440 do not overlap each other, and are individually formed grooves. The groove has a shape recessed inside the guide plate 400, and a grooved portion is formed to have a lower height than the guide plate 400. Therefore, when the projection is inserted into the guide groove, the projection does not deviate from the guide groove. The depth and width of the guide groove are formed wider or deeper than the width and depth of the protrusions 320 and 340, so that the projections can be moved along the guide groove.

The first guide groove 420 includes two first horizontal grooves 422 and a first vertical groove 424, and the second guide groove 440 includes two second horizontal grooves 442, a first 2 includes a vertical groove 444. The two horizontal grooves 422 and 442 connect both ends of the vertical grooves 424 and 444, respectively, so that the projections 320 and 340 can be moved along the connected path between the two horizontal grooves and one vertical groove. .

Openings 421 and 441 are provided at one end of the horizontal grooves 422 and 442, and the other end of the horizontal groove is connected to the vertical grooves 422 and 442. The other ends of the two horizontal grooves 422 and 442 are connected to both ends of one vertical groove 424 and 444, respectively. The two horizontal grooves 422 and 442 are arranged to have different heights from each other, and one of the two horizontal grooves 422 and 442 is connected to one end located above the vertical grooves 422 and 442, and the two The other of the horizontal grooves 422 and 442 is connected to one end located below the vertical grooves 422 and 442.

The openings 421 and 441 may be formed larger than the widths of the horizontal grooves 422 and 442. The protrusions 320 and 340 are inserted into or out of the horizontal grooves through the openings 421 and 441, and a wide width is formed, so that movement of the protrusions can be easily guided. The openings 421 and 441 may be disposed in a tapered shape or formed in a curved shape, so that movement of the protrusion can be smoothly performed. The openings 421 and 441 are formed in both horizontal grooves disposed on the upper side and horizontal grooves disposed on the lower side.

Of the two horizontal grooves 422 and 442, a horizontal groove positioned on the upper side is formed so that the height increases as the distance from the opening increases. That is, one first vertical groove 424 of the first guide groove 420 includes a first horizontal groove 422 disposed at one end of the first vertical groove 424 and the first vertical groove 424. The first horizontal groove 422 disposed at the other end is connected. Of the two first horizontal grooves 422, the horizontal groove disposed on the upper side has a low height of the opening 421, while being connected to the first vertical groove 424 while being moved to the other side of the first horizontal groove 422. The trajectory of the guide groove can be curved so that the height increases as it goes to the position. The same applies to the second horizontal groove provided in the second guide groove 440 and disposed on the upper side among the two second horizontal grooves 444.

Of the two horizontal grooves 422 and 442, a horizontal groove positioned at a lower side is formed so that a height decreases as it moves away from the opening. That is, one first vertical groove 424 of the first guide groove 420 includes a first horizontal groove 422 disposed at one end of the first vertical groove 424 and the first vertical groove 424. The first horizontal groove 422 disposed at the other end is connected. Of the two first horizontal grooves 422, the first horizontal groove disposed at the lower side has a low height of the opening 421, while being moved to the other side of the first horizontal groove 422, the first vertical groove 424 It is possible to form a curve of the trajectory of the guide groove so that the height decreases toward the position connected to. The same applies to the second horizontal groove provided in the second guide groove 440 and disposed below the two second horizontal grooves 444.

The vertical grooves 424 and 444 are arranged to move away from the center of rotation 310 which is a center of rotation in which the guide part 300 is rotated from the both ends to the center. 8, the central portion of the vertical grooves 424 and 444 is convex to the left, and when the protrusion is moved along the vertical grooves 424 and 444, it is guided along a curved trajectory instead of a straight line. .

In FIG. 8, a recess 402 is formed at a portion where the rotation center 310 is disposed. Since the guide plate 400 can be penetrated through the recess 420, the rotation center 310 of the guide portion 300 is not coupled to the guide plate 400 but the body 20 Can be connected to. Specifically, the rotation center 310 may penetrate the guide plate 400 and be coupled to the horizontal driving part 600. The recess 402 is formed larger than the projection formed in the rotation center 310, so that the projection can move without contacting the edge of the recess 402.

The curvature along the path of the first vertical groove 424 of the first guide groove 420 may be formed differently from the curvature along the path of the second vertical groove 444 of the second guide groove 440. The first guide groove 420 is disposed to surround the second guide groove 440. That is, the first guide groove 420 has a wider path than the second guide groove 440, and has a larger path than the corresponding vertical groove or horizontal groove. Specifically, the path of the first vertical groove 424 of the first guide groove is longer than that of the first vertical groove 444 of the second guide groove. Accordingly, while the first rack 100 and the second rack 200 are rotated, the distance in which the first rack 100 is moved in the vertical direction is greater than the distance in which the second rack 200 is moved in the vertical direction. The first guide groove 420 is disposed farther away from the rotation center 310 which is a rotation center where the guide portion is rotated compared to the second guide groove 440.

9 is a diagram illustrating a rotational trajectory, and FIG. 9A is a diagram mainly illustrating a trajectory when the second protrusion 340 is moved along the second guide groove 440, and FIG. 9B is the first protrusion 320 ) Is a diagram mainly illustrating a trajectory when the first guide groove 420 is moved.

The protrusion inserted into the first guide groove 420 is raised while moving to the left along the path of the first horizontal groove 422 provided on the upper side, and then moves downward when entering the first vertical groove 424 It is moved to the left and is moved while moving to the right again past the central portion of the first vertical groove 424. When entering the first horizontal groove 422 provided on the lower side, the protrusion is moved to the right while rising, and then guided out of the first guide groove 420 through the opening 421. When the projection is inserted into the second guide groove 440, the projection may be moved along the guide groove in the same manner as described above.

9A, when the second protrusion is raised along the second vertical groove 444, the first protrusion 320 is moved to the left of the first horizontal groove 422, and the opening 421 ) Is moved forward of the guide plate 400. Therefore, the first protrusion 320 is not guided by the guide plate 400, and deviates from the first guide groove 420. While the second protrusion 340 is moved along the second guide groove 440, the first protrusion 320 is moved while forming an elliptical trajectory in the counterclockwise direction. Since the first protrusion 320 is provided on the first wheel 318 and is coupled to the first rack 100 on the first wheel 318, the first rack 100 also has an elliptical trajectory. It is moved as it forms. At this time, the position of the rotation center 310 is moved in the front-rear direction, so that the path is guided by the second protrusion 340 by the second guide groove 440.

9B, when the first protrusion is raised along the first vertical groove 424, the second protrusion 340 is moved to the left of the second horizontal groove 442, and the opening 441. ) Is moved forward of the guide plate 400. Therefore, the second protrusion 340 is not guided by the guide plate 400, and deviates from the second guide groove 420. While the first protrusion 320 is moved along the first guide groove 420, the second protrusion 340 moves while forming an elliptical trajectory in the counterclockwise direction. Since the second protrusion 340 is provided on the second wheel 338 and is coupled to the second rack 200 on the second wheel 338, the second rack 200 also has an elliptical trajectory. It is moved as it forms. At this time, the position of the rotation center 310 is moved in the front-rear direction, so that the first protrusion 320 guides the path by the first guide groove 420.

That is, when the guide part 300 is moved while being rotated along the guide grooves 320 and 340, either of the first protrusion 320 or the second protrusion 340 is the guide groove 420, Since it is guided along 440, each rack 100, 200 can be guided while drawing an elliptical trajectory while being rotated forward. Since each rack (100, 200) is moved together, the two racks (100, 200) can be moved without being disturbed while being moved.

Since two racks are installed in one guide unit 300, the two racks are simultaneously rotated or moved according to the trajectory in which the guide unit 300 is rotated or moved. Of course, since the two racks are disposed at both ends of one guide part 300, the two racks can be moved according to their respective trajectories without colliding with each other. In this embodiment, since two racks move at the same time, the two racks do not collide because the other rack is moved to the corresponding position while one rack is stopped.

10 is a view for explaining the position of the two racks. FIG. 10A is a view illustrating a state in which the first rack 100 is disposed above the second rack 200, and FIG. 10B shows the second rack 200 of the first rack 100. It is a figure explaining the state when it is arranged on the upper side.

Referring to FIG. 10, relatively small sized dishes may be stored in the first rack 100 and relatively large sized dishes may be stored in the second rack 200. In the present invention, while the first rack 100 and the second rack 200 are linked and moved together, positions of each other may be changed. When the user rotates the guide unit 300 in a state in which a large size tableware is stored in the second rack 200, the second rack 200 is positioned where the first rack 100 was located. Since it is raised to a lower position, the rack can be moved while storing large dishes.

That is, the user can receive heavy dishes without having to bend the waist after moving the second rack 200 upward. In addition, the second rack 200 may be moved to the lower side, and the first rack 100 may be moved to the upper side to store small dishes in the first rack 100 without bending the waist. .

In this embodiment, even if the height is changed by moving two racks, a space for storing dishes in the rack may be maintained in the main body. Therefore, the tableware can be rotated in a state where large and small dishes are stored, and the dishes can be washed in a state where rotation is complete. In addition, after dish washing is completed, the position of the rack can be changed without having to change the position of the dishes.

FIG. 11 is a view excluding the guide plate in FIG. 7, and FIG. 12 is a view explaining main parts of FIG. 11.

11 and 12, the first guide rail 150 is provided with a first rack seating portion 80 on which the first rack 100 is seated. The first rack 100 may be mounted on an upper side of the first rack seating portion 80. The first rack seating portion 80 forms a hollow shape on the inner side, and forms a square shape having four sides as a whole. The first rack seating portion 80 has a shape similar to that of the first rack 100 as a whole, so that the lower end of the first rack 100 may be accommodated in the first rack seating portion 80. The first guide rail 150 is provided on each of the guide portions 300, and two are provided as a whole. Therefore, both sides of the first rack seating portion 80 may be supported by the two first guide rails 150. With respect to the first guide rail 150, since the first rack seating portion 80 can be pulled forward, the first rack 100 is also mounted on the first rack seating portion 80. Together they can be withdrawn. Therefore, in order to store the dishes in the first rack, the user may take out the first rack 100 and then finish storing the dishes, and then move the first rack 100 to the rear.

The second guide rail 250 is provided with a second rack seating portion 180 on which the second rack 200 is seated. The second rack 200 may be mounted on an upper side of the second rack seating portion 180. The second rack seating portion 180 forms a hollow shape on the inner side, and forms a square shape having four sides as a whole. The second rack seating portion 180 is formed in a shape similar to the second rack 200 as a whole, so that the lower end of the second rack 200 may be accommodated in the second rack seating portion 180. The second guide rail 250 is provided on each of the guide parts 300, and two are provided as a whole. Therefore, both sides of the second rack seating portion 180 may be supported by the second guide rails 250. With respect to the second guide rail 250, since the second rack seating portion 180 can be pulled forward, the second rack 200 is also mounted on the second rack seating portion 180. Together they can be withdrawn. Therefore, the user may move the second rack 200 to the rear after finishing the storage of the tableware after taking out the 21st rack 200 in the forward direction in order to store the dishes in the second rack.

Since the first rack 100 and the second rack 200 move together while the guide part 300 is rotated, fluctuations due to left and right shaking may occur while the guide part 300 is rotated. . Therefore, in this embodiment, the two guide portions 300 are provided with reinforcing portions 1002 and 1100 connecting each other.

The reinforcing portions 1002 and 1100 include a first reinforcing portion 1002 partially disposed under the first rack 100 and a second reinforcing portion partially disposed under the second rack 200. (1100).

The first reinforcing part 1002 and the second reinforcing part 1100 may respectively connect the guide parts 300 to prevent left and right distortions, etc., occurring when the guide part is rotated. Since the tableware is stored in the first rack 100 and the second rack 200, there is room for warping while rotating while weighing a certain amount, but the reinforcing portions 1002 and 1100 reinforce strength. Therefore, the two racks can be stably rotated. Since the two reinforcing parts 1002 and 1100 have a three-dimensional shape, the two guide parts 300 are connected by a three-dimensional structure, and vibration generated in various directions can be reduced.

The first reinforcing part 1002 includes a first arm 1010 rotatably coupled to the two guide parts 300, and a first member 1020 extending downward from the first arm 1010. ), and a first bar 1030 connecting the two first members 1020. In general, the first reinforcement unit 1002 includes two first arms 1010, two first members 1020, and one first bar 1030. The first arm 1010 is coupled to the first wheel 318, and when the first wheel 318 is rotated, the first arm 1010 is also rotated.

The first arm 1010 extends forward, and the first member 1020 extends by bending downward from the lower end of the first arm 1010, and the first bar 1030 is the first arm. It is formed perpendicular to the extending direction of (1010). The first reinforcing portion 1002 has a three-dimensional shape, and strength may be reinforced by the shape of the first reinforcing portion 1002. According to the direction in which each member extends, absorbing vibrations are different, and various vibrations can be attenuated.

The first arm 1010 extends from the first wheel 318 by a predetermined length, and a length in the height direction is formed longer than a length in the width direction. The first member 1020 is connected to one end of the first arm 1020, and the first member 1020 has a curvature and a downward bending shape. The first bar 1030 is disposed at one end of the first member 1020, and the length of the first bar 1030 is longer than that of the height direction.

At this time, the first bar 1030, the first member 1020 and the first arm 1010 may be integrally formed. The first reinforcing part 1002 is formed of a letter'C', and is made of a plate material having a width direction wider than the thickness, and the first part 10b is bent in a vertical direction. It is possible to manufacture the reinforcing portion 1002. When each member is integrally formed as one member, there is no portion to which each member is connected, so that strength can be improved.

The second reinforcing part 1100 includes a second arm 1110 rotatably coupled to the two guide parts 300 and a second member 1120 extending downward from the first arm 1110. ), and a second bar 1230 connecting the two second members 1120. In total, the second reinforcement unit 1100 includes two second arms 1110, two second members 1120, and one second bar 1130. The second arm 1110 is coupled to the second wheel 338, and when the second wheel 338 is rotated, the second arm 1110 is also rotated.

The second arm 1110 is extended forward, and the second member 1120 is partially bent downward from the bottom of the second arm 1110, and the second bar 1130 is the first It is formed perpendicular to the extending direction of the two arms 1110. The second reinforcing part 1100 may have a three-dimensional shape, and strength may be reinforced by the shape of the second reinforcing part 1100. According to the direction in which each member extends, absorbing vibrations are different, and various vibrations can be attenuated.

Meanwhile, the second member 1120 may include a vertical member 1115 extending vertically downward from the second arm 1110. That is, unlike the first reinforcing portion 1002, the second reinforcing portion 1100 further includes a vertical member 1115 extending linearly in a vertical direction, and further downwards compared to the first reinforcing portion 1002. It can be formed long.

The second arm 1110 extends a predetermined length from the second wheel 338, and a length in the height direction is formed longer than a length in the width direction. The second member 1120 is connected to one end of the second arm 1120, and the second member 1120 has a curvature and a downward bending shape. The second member 1120 has a vertical member 1115 having a straight line shape that is not curved, and extends downward by the length of the vertical member 1115. The second bar 1130 is disposed at one end of the second member 1120, and the second bar 1130 has a length in a width direction longer than a length in a height direction.

At this time, the second bar 1130, the second member 1120 and the second arm 1110 may be integrally formed. The second reinforcing part 1100 is formed of a letter'C', and is made of a plate material having a width direction wider than the thickness, but the second part 1120 is bent in a vertical direction. It is possible to manufacture the reinforcing portion 1100. When each member is integrally formed as one member, there is no portion to which each member is connected, so that strength can be improved. Unlike the first reinforcing portion 1002, the second reinforcing portion 1100 may be made of a plate formed longer than the length of the vertical member 1115.

The second reinforcing part 1100 and the first reinforcing part 1002 have different positions. In addition, the two reinforcing parts may be formed in different thicknesses. The fact that the two reinforcing portions are bent in a three-dimensional shape is common, but differs in the bent height and the like.

13 is a view for explaining the operation of FIG. 12. 12, the first rack seating portion 80 on which the first rack 100 is mounted is disposed on the upper side, and the second rack seating portion 180 on which the second rack 200 is mounted is on the lower side. Is placed on. Then, as the guide part 300 is rotated, the positions of the two racks may be different from those of FIG. 12 as shown in FIG. 13.

12 and 13, when the guide part 300 is rotated, the rotation center 310, the first wheel 318, and the second wheel 338 are rotated together. Of course, the guide part 300 is rotated around the rotation center 310. The first wheel 318 and the second wheel 338 may be rotated around each rotation center, but are also rotated around the rotation center 310. That is, the first wheel 318 and the second wheel 338 may be rotated in two directions at the same time. When the guide part 300 is rotated with respect to the main body 20, the reinforcing parts 1002 and 1100 are also rotated with respect to the main body 20. Therefore, while the guide part 300 is rotated, the top surfaces of the first rack 100 and the second rack 200 are continuously maintained to face the upper side, so that the rack is in a state in which dishes are stored in the rack This can be rotated. That is, even while the guide unit 300 is rotated, dishes stored in the rack are not poured out from the rack.

14 is a view illustrating the guide part in detail, and FIG. 15 is an exploded perspective view of the guide part.

14 and 15, the guide part 300 is provided with a front case 302 and a rear case 304. The front case 302 and the rear case 304 are provided with a space in which various components can be installed, and two cases can be combined to form the exterior of the guide part 300.

The front case 302 has a through hole 305 through which a part of the first wheel 318 can be exposed, a through hole 307 through which a part of the second wheel 338 can be exposed, and the Through holes 306 to which the rotation center 310 may be exposed are formed, respectively. The through holes 305, 306, and 307 are provided at positions corresponding to positions of the first wheel, the rotation center, and the second wheel, respectively. Therefore, the distance between the through hole 307 and the through hole 305 is centered around the through hole 306.

The first wheel 318, the rotation center 310, and the second wheel 338 may be gears having gear teeth formed on outer circumferential surfaces, respectively. The guide part 300 is provided with a plurality of gears 313 capable of transmitting rotational force to the first wheel 318 around the center of rotation 310. In addition, the guide part 300 is provided with a plurality of gears 313 capable of transmitting rotational force to the second wheel 338 around the rotation center 310. The rear case 304 is provided with a central axis so that the center can be fixed while the plurality of gears 313 are rotated, and a hollow is formed in the gear 313 to be inserted into and rotated in the central axis. It is possible. The plurality of gears 313 are covered by the front case 302 and the rear case 304 and are not exposed to the outside.

Since the distance from the rotation center 310 to the first wheel 318 is longer than the distance from the rotation center 310 to the second wheel 338, more gears 313 are disposed therebetween. do. That is, in the rotation center 310, the second wheel 338 is arranged with one gear 313, so that the gears are engaged, and the rotational force of the rotation center 310 is transmitted. In the rotation center 310, the first wheel 318 is arranged with three gears 313 so that the gears are engaged, and the rotational force of the rotation center 310 is transmitted. The rotation center 310, the first wheel 318 and the second wheel 338 are coupled to be engaged with each other by a plurality of gears. Therefore, when the rotation center 310 is rotated, the first wheel 318, the second wheel 338, and a plurality of gears 313 are rotated together.

A first protrusion 320 inserted into the first guide groove 420 is provided on one surface of the first wheel 318, and the first rack 100 is seated on the other surface of the first wheel 318. The first horizontal piece 322 is arranged. Of course, the first guide rail 150 is coupled to the first horizontal piece 322, and the first rack seating portion 80 is disposed on the first guide rail 150, so that the first rack 100 ) May be disposed on the first rack seating portion 80. On the other hand, the first reinforcing part 1002 is coupled to the first wheel 318, so that the first reinforcing part 1002 can also be rotated while the first wheel 318 is rotated. While the first wheel 318 is rotated, the state in which the first horizontal piece 322 is parallel to the floor is maintained, so that the first reinforcement part 1002 is also parallel to the floor while being moved. do.

The first protrusion 320 is disposed so as to deviate from the rotation center of the first wheel 318, so that the first center with respect to the rotation center of the first wheel 318 while the first wheel 318 is rotated The protrusion 320 is in a circular motion while drawing a certain radius. While the first wheel 318 is rotated, while the first horizontal piece 322 is also rotated, the upper side of the first rack 100 is continuously provided to face the upper side. The first horizontal piece 322 is maintained horizontally while the first wheel 318 is rotated.

A second protrusion 340 inserted into the second guide groove 440 is provided on one surface of the second wheel 338, and the second rack 200 is seated on the other surface of the second wheel 338. The second horizontal piece 342 is arranged. Of course, the second guide rail 250 is coupled to the second horizontal piece 342, and the second rack seating portion 180 is disposed on the second guide rail 250, so that the second rack 200 ) May be disposed on the second rack seat 180. Meanwhile, the second reinforcing part 1100 is coupled to the second wheel 338, so that the second reinforcing part 1100 can also be rotated while the second wheel 338 is rotated. While the second wheel 338 is rotated, the state in which the second horizontal piece 342 is parallel to the floor is maintained, so that the second reinforcing portion 1100 is also parallel to the floor while being moved. do.

The second projection 340 is disposed at the center of rotation of the second wheel 338, so that the second projection relative to the center of rotation of the second wheel 338 while the second wheel 338 is rotated ( 340) only rotates itself without radius. This is because the center of rotation of the second protrusion 340 coincides with the center of rotation of the second wheel 338. Of course, it is also possible that the center of rotation of the second projection 340 and the center of rotation of the second wheel 338 do not coincide with each other. While the second horizontal piece 342 is also rotated while the second wheel 338 is rotated, the upper side of the second rack 200 is continuously provided to the upper side. The second horizontal piece 342 is maintained horizontally while the second wheel 318 is rotated.

2, 14 and 15, a through hole 306 is formed in the front case 302 so that the rotation center 310 is exposed to the outside. The rotation center 310 includes a rotation shaft 311, and the rotation shaft 311 penetrates the through hole 306 and is coupled to the horizontal driving unit 600. One end of the rotation shaft 311 has an angled shape, and the rotational force of the horizontal driving unit 600 is transmitted to the rotation center 310 through the rotation shaft 311 and the rotation center 310 is also rotated. Can be.

Since the horizontal driving part 600 is coupled to the rail 250 so as to be horizontally movable, when the horizontal driving part 600 is horizontally moved, the guide part 300 is also horizontally moved. That is, when the horizontal driving unit 600 is moved forward, the guide unit 300 is also moved forward, and when the horizontal driving unit 600 is moved backward, the guide unit 300 is also moved backward.

The rail 500 is provided in a form in which a long elongated bar is coupled to a side wall of the main body 20, and thus it is possible to be disposed to penetrate the horizontal driving part 600. The horizontal driving part 600 may be moved in the front-rear direction along a horizontal direction in which the rail 500 extends.

The rotating center 310 is provided with a rotating shaft 311 coupled to the horizontal driving unit 600. The rotation center 310 is rotated about the rotation axis 311. In addition, as the rotation center 310 is rotated, the guide unit 300 is also rotated. The rotation shaft 311 is disposed at the center of the rotation center 310.

The rotation shaft 311 is disposed to penetrate the recess 402 of the guide plate 400, and is not coupled to the guide plate 400. The rotating shaft 311 is coupled to the horizontal driving unit 600 through the recess 402.

The horizontal driving part 600 includes the driving motor 630 providing rotational force. The driving motor 630 is driven by electric power supplied to the dishwasher, and generates rotational force. The horizontal driving part 600 is moved along the rail 500, and the driving motor 630 is also moved. That is, the horizontal driving part 600 is moved by the rotational force of the driving motor 630, and the driving motor 630 which is a component of the horizontal driving part 600 is also moved at the same time.

The horizontal driving unit 600 includes a plurality of gears for transmitting rotational force generated by the driving motor 630 therein. Therefore, when a rotational force is generated from the motor 630, the gear provided in the horizontal driving part 600 is rotated. Then, the rotation shaft 311 of the rotation center 310 of the guide unit 300 coupled to the horizontal driving unit 600 is rotated. That is, the rotational force of the driving motor 630 is transmitted to the rotation center 310, and the first wheel 318 and the second wheel 338 are rotated by a plurality of gears 313. Then, while the first protrusion 320 and the second protrusion 340 are rotated together, the first protrusion 320 and the second protrusion 340 move along the trajectories of the guide grooves 420 and 440. do. As the guide part 300 is rotated by the trajectories of the guide grooves 420 and 440, the guide part 300 is moved in the rail 500 in the front-rear direction. The rail 500 merely guides the movement trajectory to the horizontal driving unit 600, and does not allow the horizontal driving unit 600 to move by providing a separate driving force.

As the first wheel 318 and the second wheel 338 are rotated, the first rack 100 and the second rack 200 are rotated together, and a part of the movement trajectories of the two racks is elliptical. Draw. Since the radii do not draw the same circle, the two racks can be repositioned without interfering with each other while traversing. During the rotation of the two racks, since the first reinforcing portion 1002 and the second reinforcing portion 1100 are rotated together, no interference is generated between the rack and the reinforcing portion. In addition, even if the positions of the two racks are changed, the reinforcement part does not interfere when the rack is pulled out, so that the user can take out the rack and receive dishes.

16 is a view illustrating an interior of a main body according to an embodiment. In FIG. 16, components related to the first rack and the second rack are omitted, and the door 10 is a state in which the washing space provided in the main body 20 is opened, and the state in which the dishwasher is viewed from the front is described. .

17 is a view illustrating a state in which the first rack is positioned above the second rack, and FIG. 18 is a view illustrating a state in which the second rack is positioned above the first rack. 17 and 18 are views showing a side in a state in which the door 10 is opened, and unlike FIG. 16, two racks are shown together.

16 to 18, three water supply units are provided on the rear wall of the main body 20 constituting the washing space in one embodiment. The three water supply parts supply water to the first water supply part 700 provided under the first rack 100 and the second water supply part 800 provided under the second rack 200. .

The three water supply units 1510, 1520, and 1530 are connected to a flow path through which water can be supplied from the main body 20, so that water is supplied to the body through each water supply unit 1510, 1520, 1530. Can supply. The three water supply units 1510, 1520, and 1530 are disposed on the rear wall of the washing space forming a space for washing dishes in the main body 20. Therefore, a flow path for supplying water or the like from the main body 20 to the three water supply units 1510, 1520, and 1530 is between the rear wall forming the washing space of the main body 20 and the rear wall forming the exterior of the main body 20. It may be composed of a tube that is placed on. At this time, the tube extends from the lower side of the main body 20 to the position where each water supply unit 1510, 1520, 1530 is disposed, and a flow path capable of supplying water or the like to the water supply unit may be formed.

The three water supply units 1510, 1520, and 1530 include a first water supply unit 1510, a second water supply unit 1520, and a third water supply unit 1530, which are arranged in order from the top to the bottom. At this time, an interval between the first water supply unit 1510 and the second water supply unit 1520 is different from that of the second water supply unit 1520 and the third water supply unit 1530.

The three water supply units 1510, 1520, and 1530 are arranged in a line so as to have different positions and different heights with respect to the left and right directions. Each water supply unit 1510, 1520, and 1530 includes a water supply pipe through which water is supplied and a steam supply pipe through which steam is supplied. The first water supply unit 1510 is provided with a water supply pipe 1512 and a steam supply pipe 1514, it is possible to supply water and steam together through one water supply unit. The water supply pipe 1512 and the steam supply pipe 1514 are composed of two pipes separated from each other, so that water and steam may be supplied to the injection unit without being mixed. The water supply pipe 1512 and the steam supply pipe 1514 form two separate pipes inside one water supply unit 1510, and the two separated pipes are arranged to be separated from each other.

Among the three water supply units 1510, 1520, and 1530, the second water supply unit 1520 is disposed in the center, the first water supply unit 1510 is disposed on the upper side, and the third water supply unit 1530 is disposed on the lower side. Is placed.

The distance between the first water supply unit 1510 and the second water supply unit 1520 may be narrower than the distance between the second water supply unit 1520 and the third water supply unit 1530. This distance is related to the first rack 100 and the second rack 200 installed in the guide part 300. Tableware of a relatively small size is stored in the first rack 100, and tableware of a relatively large size is stored in the second rack 200. Even if the positions of the first rack 100 and the second rack 200 are changed, the space in which the dishes are stored in each rack is arranged to be maintained.

As shown in FIG. 17, in the state in which the first rack 100 is disposed on the second rack 200, relatively small dishes are stored in the first rack 100, so that the first rack ( 100) and the distance to the ceiling of the washing space may be smaller than the distance from the second rack 200 to the lower portion of the first rack 100. In this case, when the first water supply unit 1510 is connected to the first injection unit 700, the third water supply unit 1530 is connected to the second injection unit 800. That is, water or steam supplied from the main body 20 to the first water supply unit 1510 is transferred to the first injection unit 700 through the first water supply unit 1510. In this case, when the first water supply unit 1510 is connected to the first injection unit 700, the injection unit is not connected to the second water supply unit 1520. Therefore, water and steam are not supplied to the second water supply unit 1520 to the rack. The second water supply unit 1520 is provided with a sensing sensor that detects which one of the injection units is connected, and it is possible to determine whether to supply water and steam through the second water supply unit 1520. In this case, the sensing sensor can also operate with an electrical signal. On the other hand, the sensing sensor has a mechanical structure, and when the injection part is connected to the second water supply part 1520, the mechanical structure provided in the second water supply part 1520 changes while the second water supply part 1520 It is also possible to have a structure in which the flow path supplied from is opened. Specifically, the cover provided in the second water supply unit 1520 is opened, and a flow path through which water and steam is supplied may be provided.

As shown in FIG. 18, in the state in which the second rack 200 is disposed on the first rack 100, relatively small dishes are stored in the first rack 100, so that the second rack ( 200) and the distance to the ceiling of the washing space may be smaller than the distance from the first rack 100 to the lower part of the second rack 200. In this case, when the third water supply unit 1530 is connected to the first injection unit 700, the second water supply unit 1520 is connected to the second injection unit 800. That is, water or steam supplied from the main body 20 to the second water supply unit 1520 is transmitted to the second injection unit 800 through the second water supply unit 1520. In this case, when the second water supply unit 1520 is connected to the second injection unit 800, an injection unit is not connected to the first water supply unit 1510. Therefore, water and steam are not supplied to the first water supply unit 1510 to the rack. The first water supply unit 1510 is provided with a detection sensor that detects which one of the injection units is connected, and it is possible to determine whether to supply water and steam through the first water supply unit 1510. In this case, the sensing sensor can also operate with an electrical signal. Unlike this, the detection sensor has a mechanical structure, and when the injection part is connected to the first water supply part 1510, the fastening provided in the first water supply part 1510 is released and the flow path supplied from the water supply part is opened. It is also possible to have Specifically, the cover provided in the first water supply unit 1510 is opened, and it is also possible to provide a flow path through which water and steam are supplied.

In the present invention, three water supply units for supplying water and the like for washing dishes stored in the rack are provided, while two spray units for spraying water or the like directly in the rack are provided. In the present invention, the position of the rack can be changed, and it is possible to provide an environment for washing dishes even when the position of the rack is changed. That is, even when the first rack 100 is positioned above the second rack 200 and the second rack 200 is positioned above the first rack 100, both dishes are washed. can do.

In each of the two states, since each injection part must be coupled to the water supply part, in this embodiment, the number of water supply parts is provided as compared to the number of the injection parts. In the present embodiment, when the positions of the two racks are changed, the height of the rack arranged at the bottom is kept constant from the bottom of the washing space. On the other hand, when the positions of the two racks are changed, the height of the rack disposed at the top changes from the bottom of the washing space, so that two water supply units for supplying water and the like to the rack located at the upper side are provided. At this time, the two water supply units are disposed at different heights, so that the rack positioned on the upper side can supply water for washing dishes even if it corresponds to any of the first rack 100 or the second rack 200.

19 is a view illustrating a rack and an injection unit, FIG. 20 is a view showing a rack, and FIG. 21 is a view showing an injection unit. In FIG. 19, the first rack 100 and the second rack 200 are expressed together, and in FIGS. 20 and 21, one of two racks and one of two injection parts are expressed. The first rack and the second rack may have the same or similar shape to each other, and the two injection parts may have the same or similar shape to each other.

The racks 100 and 200 include upper frames 102 and 202 disposed at upper corners and lower frames 104 and 204 disposed at lower corners. The upper frame (102, 202) and the lower frame (104, 204) are arranged to surround the entire surface of the corner while forming an upper or lower appearance. Since the rack is entirely rectangular when viewed from above, the frame has a shape extending along the corners of the square. The frame has a width and height sufficient to be grasped by a user, and may be formed in a shape having a certain level of area. The frame may be made of aluminum.

Side wires 106 and 206 are disposed between the upper frames 102 and 202 and the lower frames 104 and 204. The side wires 106 and 206 are formed in a shape having a circular cross section, and are arranged to be spaced apart from each other by forming a gap. It is also possible that the side wires 106 and 206 extend below the lower frames 104 and 204. The upper frames 102 and 202 and the lower frames 104 and 204 may be arranged to be spaced apart from each other by the side wires 106 and 206.

The first lower wires 108 and 208 and the second lower wires 109 and 209 forming the lower portion of the rack are disposed below the racks 100 and 200. The first lower wires 108 and 208 are arranged in the vertical direction of the racks 100 and 200, and the second lower wires 109 and 209 are arranged in the horizontal direction to form a grid with each other.

Tableware may be stored in a space formed by the first lower wires 108 and 208 and the second lower wires 109 and 209 and the side wires 106 and 206. The first lower wires 108 and 208 are arranged so that a plurality of them are spaced apart from each other, and water may fall into the space between the spaces. In addition, a plurality of the second lower wires 109 and 209 are arranged to be spaced apart from each other, and water may drop into the space between the spaces. The first lower wires 108 and 208 and the second lower wires 109 and 209 cross each other while forming a cross shape.

The first lower wires 108 and 208 and the second lower wires 109 and 209 may be combined with the side wires 106 and 206. When the side wires 106 and 206 extend to the lower portions of the lower frames 104 and 204, the first lower wires 108 and 208 and the second lower wires 109 and 209 are the lower frame 104 , 204).

Meanwhile, one end of the side wires 106 and 206 is coupled to the upper frames 102 and 202. The side wires 106 and 206 are coupled to the inner surfaces of the lower frames 106 and 206 and may include a bent portion extending in an inclined direction rather than a vertical direction in a section extending downward.

In addition, the side wires 106 and 206 may be formed integrally with any one of the first lower wires 108 and 208 and the second lower wires 109 and 209.

The injection parts 700 and 800 include supply parts 710 and 810 that can receive water or steam from the water supply part. The flow paths through which water and steam can move are divided in the supply parts 710 and 810. The supply parts 710 and 810 extend toward a rear wall constituting a washing space for washing the expression of the main body 20, and may be coupled to the water supply part.

One end of the supply parts 710 and 810 is provided with connection parts 712 and 812 that can be fastened to the water supply part. The connection parts 712 and 812 have a larger cross-sectional area than the supply parts 710 and 810, so that the water supply part can be easily fastened.

The other ends of the supply parts 710 and 810 are provided with transfer parts 714 and 814 that are branched and moved into a plurality of M-ring flow paths supplied from the supply parts 710 and 810. A plurality of the transmission units 714 and 814 are provided, and are connected to one supply unit 710 and 810. In the delivery units 714 and 814, a flow path through which steam and water can be moved is independently provided, so that the water and steam moved through the supply units 710 and 810 are transferred to the delivery units 714 and 814. Can be guided.

The injection units 700 and 800 include injection nozzles 722 and 724 for spraying water or steam to the rack provided on the upper side. In the spray nozzles 722, 724, 822, and 824, water and steam supplied from the water supply unit may be sprayed toward dishes stored in a rack. Water and steam injected from the spray nozzle are sprayed upward.

The injection nozzles 724 and 824 are provided at one end of the transmission parts 714 and 814, respectively. That is, at least one injection nozzle 724 or 824 is disposed in one transmission unit 714 or 814.

Central injection nozzles 722 and 822 are provided at a portion branched from the supply units 710 and 810 to the transmission units 714 and 814. The central jetting nozzles 722 and 822 may have the same size as the jetting nozzles 724 and 824, but it is possible to have a relatively large size. Since the central spraying nozzles 722 and 822 are different in size from the spraying nozzles 724 and 824, the operation mechanisms and shapes are the same, and therefore the injection nozzles 724 and 824 are mainly described, and the central spraying is performed. The same applies to the nozzles 722 and 822.

The injection nozzles 724 and 824 are also provided in the supply units 710 and 810, and the injection units 700 and 800 all include nine injection nozzles 724, 824, 722, and 822. Equipped with nine spray nozzles, water and steam can be sprayed into a large space toward the dishes stored in the rack.

The injection nozzle includes a water injection hole 728 for spraying water upward and a steam injection hole 729 for spraying steam upward. Since the water jet hole 728 and the steam jet hole 729 are separated from each other, water and steam may be jetted individually. For example, it is possible that steam is not sprayed while water is being sprayed, and water is not sprayed while steam is being sprayed.

While the steam injection hole 729 is disposed at the center of the injection nozzle, it is possible that the water injection hole 728 is biased toward one side of the injection nozzle. In the spray nozzle, the upper cover on which the water jet port and the steam jet port are disposed is rotatably provided, so that the water jet port 728 can be rotated while water is jetted through the water jet port 728. The water jetting port is arranged at an angle rather than the upper side, so that it is possible to spray water to various areas while the upper cover is rotated.

The injection parts 700 and 800 are provided with coupling pieces 730 and 830 for coupling the injection parts 700 and 800 to the racks 100 and 200. The coupling pieces (730, 830) are fastened to the lower portion of the rack (100, 200), so that when the rack (100, 200) is moved, the injection unit (700, 800) is also moved.

The coupling pieces 730 and 830 are provided on the upper side of the transmission parts 730 and 830 or the supply parts 710 and 810. The coupling pieces 730 and 830 need not be provided in all the transmission parts 714 and 814, and may be provided only in some transmission parts.

The coupling pieces 730 and 830 are protruding pieces 732 and 832 protruding from the transmission parts 714 and 814 or the supply parts 710 and 810, and bending pieces bent from the protruding pieces 732 and 832 (734, 834, 738, 838), the bending piece (734, 834, 738, 838) is fixed to the rack the way the hook (100, 200).

The bending piece is a first bending piece (734, 834) extending at a predetermined angle from one end of the protruding pieces (732, 832) and a second extending at a certain angle from one end of the first bending piece (734, 834) And bending pieces 738 and 838. The first bending pieces 734 and 834 and the second bending pieces 738 and 838 have locking grooves 736 and 836 formed therebetween, so that the lower wires of the racks 100 and 200 are the locking grooves ( 736, 836).

In this embodiment, the first injection portion 700 and the second injection portion 800 includes supply portions 710 and 810 extending toward the rear wall of the main body 20, respectively, and the supply portion 710, 810) is coupled to at least one of the three water supply. That is, including three water supply units and two supply units, the two supply units can always be combined with the water supply unit regardless of the position of the rack.

The injection unit (700, 800) is coupled to each rack is rotated together when the rack is rotated. The spray nozzles of the spray units 700 and 800 are arranged to face the bottom of the rack, so that water or steam sprayed through the spray nozzles is sprayed into dishes stored in the rack.

When the rack (100, 200) is pulled forward through the guide rail, the ejection unit (700, 800) is also drawn out, and when the rack (100, 200) is drawn backward through the guide rail, the The injection parts 700 and 800 are also introduced.

22 is a view for explaining an embodiment in which the injection unit is coupled to the water supply unit. For convenience of explanation, the description is limited to the first water supply unit 1510 and the first injection unit 700, but is applicable to all water supply units and all injection units. FIG. 22A shows the state before the injection part is coupled to the water supply part, and FIG. 22B shows the state where the injection part is coupled to the water supply part.

Referring to FIG. 22A, there is a member at the end of the first water supply unit 1510 that can seal a pipe through which water or steam is injected. A hinge 1514 is disposed at an end of the first water supply unit 1510, and a first plate 1512 is provided at each hinge to seal the opening of the pipe sprayed from the water supply unit. At this time, a second plate 1516 is provided on one side of the first plate 1512 to prevent water or steam from being injected between the two first plates 1512. The second plate 1516 may cover a gap provided between two first plates 1512. The second plate may be made of a material that can contact two plates, such as a rubber material.

Referring to FIG. 22B, when the first water supply unit 1510 is coupled to the first water supply unit 1510, one end of the first water supply unit 1510 enters the inner space of the first water supply unit 1510. While doing so, push the first plate 1512. While the first plate 1512 is rotated clockwise or counterclockwise around the hinge 1514, one end of the first water supply unit 1510 may be opened. That is, a path through which water or steam can be supplied is formed from the first water supply unit 1510, so that water or steam can be moved to the first injection unit 700. In addition, when an instruction for washing dishes is performed, water or steam is moved to the first injection unit 700 through the first water supply unit 1510, and dish washing may be performed.

The diameter of the first water supply unit 1510 is formed larger than the diameter of the first injection unit 700, so that the first injection unit 700 may be inserted into the first water supply unit 1510. . At this time, the first injection portion 700 is inserted to the inner side of the hinge 1514 to rotate the first plate 1512, thereby securing a path for water and steam to move to the first injection portion 700. Can be.

23 is a view for explaining another embodiment in which the injection unit is coupled to the water supply unit. For convenience of explanation, the description is limited to the first water supply unit 1510 and the first injection unit 700, but is applicable to all water supply units and all injection units.

Referring to FIG. 23, the first water supply unit 1510 is provided with a sensing unit 1550 capable of confirming whether the first injection unit 700 is connected to the first water supply unit 1510. The first water supply unit 1510 is provided with a valve 1530 that opens and closes a flow path through which the water or steam is supplied through the first water supply unit 1510. At this time, the valve 1530 may include a valve that opens and closes the flow path of water and a valve that opens and closes the flow path through which steam moves.

When it is determined that the first injection unit 700 is connected to the first water supply unit 1510 in the sensor unit 1550, the control unit 1000 opens the flow path in the valve 1530. Therefore, a flow path through which water or steam can be supplied from the first water supply unit 1510 to the first injection unit 700 is formed. In addition, when an instruction for washing dishes is performed, water or steam is moved to the first injection unit 700 through the first water supply unit 1510, and dish washing may be performed.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the present invention pertains, and such modifications are within the scope of the present invention.

Claims (20)

1. A main body providing a washing space for dishes;

   Two guide parts coupled to both side walls of the body;

   A first rack in which tableware is stored and provided to be rotatable with respect to the two guide parts;

   A second rack in which tableware is accommodated and rotatably provided with respect to the two guide parts; And

   A dishwasher comprising a reinforcing part connecting the two guide parts to each other.
2. According to claim 1,

   The dishwasher according to claim 1, wherein the reinforcing portion includes a first reinforcing portion partially disposed under the first rack.
3. According to claim 2,

   The first reinforcement unit,

   A first arm rotatably coupled to the two guide parts,

   A first member extending downward from the first arm,

   A dishwasher comprising a first bar connecting the two first members.
4. According to claim 3,

   The guide portion includes a first wheel rotatably disposed,

   The first arm is coupled to the first wheel, and when the first wheel is rotated, the first arm is also rotated.
5. According to claim 3,

   The first arm extends forward,

   The first member is extended downward by bending downward from the lower end of the first arm,

   The first bar is a dishwasher, characterized in that formed perpendicular to the extending direction of the first arm.
6. According to claim 3,

   The first bar, the first member and the first arm is dishwasher, characterized in that formed integrally.
7. According to claim 1,

   The dishwasher according to claim 1, wherein the reinforcing part includes a second reinforcing part partially disposed under the second rack.
8. The method of claim 7,

   The second reinforcement unit,

   A second arm rotatably coupled to the two guide parts,

   A second member extending downward from the second arm,

   A dishwasher comprising a second bar connecting the two second members.
9. The method of claim 8,

   The guide portion includes a second wheel disposed rotatably,

   The second arm is coupled to the second wheel, and when the second wheel is rotated, the second arm is also rotated.
10. The method of claim 8,

    The second arm extends forward,

    The second member is extended downward by bending downward from the lower end of the second arm,

    The second bar is a dishwasher, characterized in that formed perpendicular to the extending direction of the second arm.
11. The method of claim 8,

    The second member,

    A dishwasher comprising a vertical member connecting the second member and the second arm and extending vertically downward from the second arm.
12. The method of claim 8,

    The second bar, the second member and the second arm are dishwashers, characterized in that formed integrally.
13. According to claim 1,

    When the guide portion is rotated relative to the main body, the reinforcing portion is also rotated with respect to the main body dishwasher.
14. According to claim 1,

    When the first rack and the second rack are moved together, the height of the first rack and the second rack is changed, the dishwasher.
15. According to claim 1,

    The guide portion,

    A rotation center which is a rotation center where the guide part is rotated,

    A first wheel disposed on one side of the center of rotation and the center of rotation where the first rack is rotated,

    Dishwasher characterized in that it is disposed on the other side of the rotation center, the second rack is a second wheel that is a rotation center to rotate.
16. The method of claim 15,

    When the guide portion is rotated,

    Dishwasher characterized in that the rotation center, the first wheel and the second wheel are rotated together.
17. The method of claim 15,

    The distance from the central portion of the guide rotation to the portion where the first rack is installed in the guide portion is different from the central portion of the guide rotation to the portion where the second rack is installed in the guide portion.
18. According to claim 1,

    The guide portion is provided with a projection,

    Dishwasher, characterized in that the body is provided with a guide plate is formed with a guide groove for guiding the position of the projection.
19. The method of claim 18,

    The guide groove is a dishwasher, characterized in that the projection has an opening through which it is possible to enter.
20. The method of claim 19,

    The guide groove is a dishwasher comprising a horizontal groove extending in a horizontal direction and a vertical groove extending in a vertical direction.

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