KR100716347B1 - Dish washer - Google Patents

Abstract

An inner link for raising and lowering the dish storage unit on the inner wall of the washing tank is disposed, an outer link for driving the inner link on the outer wall of the washing tank, and a dish washing machine for driving the outer link by the driving device. By this structure, the dish storage part can be moved up and down in the washing tank.

Description

Dish Washer {DISH WASHER}

1 is a view showing a schematic configuration of a dish washing machine according to an embodiment;

FIG. 2 is a perspective view showing the structure of a washing tank of the dish washing machine shown in FIG. 1; FIG.

3A is a cross-sectional view showing a configuration operation at the time of lowering the dish storage unit of the inner link constituting the dish storage unit lift drive device;

FIG. 3B is a cross-sectional view showing the configuration operation of the inner link shown in FIG. 3A at the time of raising the dish storage unit; FIG.

FIG. 4A is a side view illustrating an operation of the outer link constituting the dish storage unit lift drive device and the configuration operation at the time of the dish storage unit lowering of the drive device; FIG.

4B is a side view illustrating the configuration operation of the outer link and the drive device that constitute the dish storage unit lift drive device at the time of raising the table storage unit;

5 is a cross-sectional view showing a connection structure of the support rail, the inner link arm, and the outer link arm according to the embodiment;

6 is a block diagram showing a control configuration of the dish washing machine according to the embodiment;

Explanation of symbols for the main parts of the drawings

1: dish washer 2: dish storage lifting device

3: washing tank 4: main body

10: control unit 11: detection device

21: inner link 22: outer link

23 support rail 26 drive shaft

50: kitchen counter 51: sink

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pull-open type dish washer built in a kitchen counter and the like, which draws out a washing tank opened upward from the main body and withdraws dishes.

When dispensing dishes into the washing tank of the dishwasher built in the lower part of the kitchen counter, the dish storage position of the washing tank is lower than that of the kitchen counter surface. Occurs. In particular, when the dishwasher is installed in the lower part of the sink, the position of the washing tank becomes a low position, and the degree of bending of the waist is large when the dishware is put out and the pain is accompanied. Similarly, in a dishwasher in which two dishwashers are stacked in two stages to increase the processing capacity, the washing tank of the lower dishwasher is positioned close to the floor surface. It is forced to be a posture.

In order to facilitate the operation of dispensing tableware and cleaning of a remnant filter and the like to a washing tank in such a low position, a front open dish washer having a front surface of the washing tank opened in a lower side has been proposed. And it has the structure which made it possible to draw out the dish basket which accommodates tableware on the style of the opened and horizontal state in a washing tank, and to raise a dish basket by a lifting device. Such a dishwasher is disclosed in Japanese Laid-Open Patent Publication No. 1998-179495 (pages 2 to 3, Fig. 1).

However, in the full-open type dishwasher, the washing tank opened upward is taken out from the front opening of the main body to the front, and the upper side of the washing tank is opened to take out and remove the dishes. Therefore, it is impossible to move a dish basket in a horizontal direction, and it is necessary to arrange a lifting device in a washing tank in order to raise and move a dish basket. On the other hand, since the cleaning nozzle, the remnant filter, the heater, etc. which spray the washing water while rotating is disposed on the inner bottom face of the washing tank, and the piping of the water supply and drainage is arranged on the outer bottom face, there is no room for elevating device.

In addition, if a lifting device is provided in order to move the dish basket up and down, it is difficult to reduce the effective use volume of the washing tank, and the dish washing machine may be enlarged in vain.

The present invention provides a dish washing machine comprising a dish storage unit configured to accommodate a washing tank open upward from a front opening in a main body opening forward, and to accommodate dishes in the washing tank. A dishwasher comprising a dish storage unit elevating drive unit for elevating the dish storage unit to an arbitrary height position in a withdrawn state is provided. In this way, when the washing tank is pulled out from the main body, the upper side of the washing tank is opened, and thus, the dish storage unit can be raised to an arbitrary height position in the washing tank by the dish storage unit lift drive device. In the dishwasher installed at a lower position than the kitchen counter, the inside of the washing tank becomes a lower position and the waist is more likely to bend in and out of the dishware. Workability improves without bending. In particular, it becomes effective in the dishwasher which is installed in the position near the floor of a floor, such as a sink.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described, referring drawings. In addition, the figure is schematic and does not show each position dimensionally correctly. In addition, embodiment is an example which actualized this invention, and does not limit the structure of this invention.

FIG. 1 shows a state in which the full-open dishwasher 1 according to the present embodiment is built in the lower portion of the sink 51 provided in the kitchen counter 50. And the state which pulled out the washing tank 3 from the main body 4 is shown. The dishwasher 1 accommodates the washing tank 3 in the main body 4 provided below the kitchen counter 50. As shown in FIG.

The cleaning tank 3 slides on the rail 9 and is pulled forward from the front opening of the main body 4 to open upward. In this way, tableware can be sent to and received from the dish storage unit 5 disposed in the washing tank 3. When the tableware is moved up and down by the table storage unit lift drive device 2 at the time of dispensing the tableware, the operation of dispensing the tableware to and from the table storage unit 5 becomes easy.

In particular, as the installation position is lowered, such as when the dishwasher 1 is installed under the sink 51 as shown in the drawing, the pain of bending the waist is often accompanied by dispensing the dishes from the dish storage unit 5. Lose. However, by raising the tableware storage part 5, the work of taking out and preparing the dishes and the cleaning work in the cleaning tank 3 can be made easier.

In addition, since the lifting position of the dish storage part 5 by the dish storage lifting device 2 can be set arbitrarily within a movable range, it can be set arbitrarily according to the installation height position of the dishwasher 1, and the height and preference of an operator. It can be raised to a height position. As shown in FIG. 2, the dish storage unit lift-drive device 2 arranges a pair of inner links 21 disposed on the left and right inner surfaces of the cleaning tank 3 on the left and right outer surfaces of the cleaning tank 3. It is comprised so that it may drive by the pair of outer links 22 which were combined. As for the inner link 21, the tableware storage part 5 is detachably mounted on the support rail (tableware storage part support apparatus) 23, and as shown to FIG. 3A, FIG. 3B, the inner link arm 24 is shown. The support rail to which the roller 25 provided in the other end side of the inner link arms 24 and 24 couple | bonds by being rotated and driven by the said outer link 22 with the one end side as the rotating shaft 26. Since 23) moves upward from the lowered position shown in FIG. 3A to the raised position shown in FIG. 3B, the dish storage part 5 supported on the support rail 23 can be moved upward. The inner link arm is, in other words, a swing arm that is pivotally driven at one end side, the pair of swing arms are synchronously rotated, and the roller 25 provided at the other end slides along the support rail 23 to serve as a parallel link. The operation is performed, and the support rail 23 is kept in a horizontal state to move up and down.

As shown in FIG. 5, the rotating shaft 26 which supports the one end side of each of a pair of inner link arms 24 and 24 is each side wall 3a of the washing tank 3 via the sealing structure 30, respectively. ) Are axially supported on one end of each of the first and second outer link arms 27a, 27b constituting the outer link 22, respectively.

As shown in FIGS. 4A and 4B, the outer link 22 includes a parallel link in which the first outer link arm 27a and the second outer link arm 27b are supported by the connecting arm 28. When the drive arm 29 supported on the other end side of the first outer link arm 27a is driven forward and backward by the drive device 31, the outer link 22 rotates to drive the inner link 21 to rotate. do.

The drive device 31 is arranged in pairs to the left and right of the rear side of the cleaning tank 3, and converts the rotation of the motor 32 into a forward and backward motion for moving the piston 34 back and forth in the cylinder 33. It is comprised so that the drive arm 29 joined to the front-end | tip of 34 may move forward and backward. The left and right pair of drive devices 31 are synchronously operated by synchronously rotating the motor 32 to synchronously rotate the left and right pair of outer links 22. Since the pair of left and right inner links 21 are synchronously driven, the support rail 23 can be moved up and down without causing a bias in the left and right lifting height positions, and the table storage unit 5 can be raised and lowered stably. In addition, although the left and right pair of drive devices 31 are each driven by the motor 32 here, it is also possible to comprise so that a pair of drive devices 31 may be interlocked with one motor 32. As shown in FIG.

As shown in this configuration, the inner links 21 are disposed on the left and right inner surfaces of the cleaning tank 3, and the outer links 22 are disposed on the left and right outer surfaces of the cleaning tank 3 facing each other. It is not necessary to install a lifting device on the bottom surface of the washing tank 3 where the washing nozzle, the remnant filter, or the water supply and drainage pipe, etc., are left open. Thus, it is difficult to construct an essential component as the washing tank 3. Lifting and moving of the tableware storage part 5 can be realized without an impact. Moreover, since the inner side link 21 and the outer side link 22 are arrange | positioned in the position which faces inside and outside of the left and right both sides of the washing tank 3, in order to transmit a driving force, the drive shaft 26 passes through both left and right side walls. It is good to just make it possible and the sealing structure 30 for maintaining the sealing property of the washing tank 3 can be comprised easily. In addition, since the inner link 21 and the outer link 22 can be constituted by the connection of the sheet material, the occupancy volume is small, and it is suppressed that the effective volume in the washing tank 3 is reduced, and thus, as the washing tank 3. The lifting device of the tableware storage part 5 can be constructed using both left and right side surfaces with little arrangement of components.

The dish storage portion 5 which is moved up and down by the dish storage portion lift drive device 2 is fitted to the support rail 23 at a plurality of positions and is detachably mounted. Since the dish storage unit 5 needs to be separated when the cleaning tank 3, such as a remnant filter, is cleaned, the bottom surface of the cleaning tank 3 is to be opened, so that the dish rail 5 has a simple fitting structure with respect to the support rail 23. Positioning is fixed. However, as shown in FIG. 5, the support rail 23 on which the dish storage unit 5 is mounted is an inner groove of the rollers 25 and 25 provided at the distal ends of the pair of inner link arms 24 and 24, respectively. The sliding part 23a is inserted in 25a so that the rollers 25 and 25 can slide freely. In this way, although the position is maintained with respect to the left-right direction, it is in the state which is easy to move to the front-back direction. Therefore, the dish storage part 5 mounted on the support rail 23 also moves to the front-back direction, and it becomes easy to contact the inner wall of the washing tank 3. Therefore, when the dish storage part 5 contacts the inner wall of the washing tank 3, as shown in FIG. 2 and FIG. 3 so that it may not contact with a large area and generate resistance to a lifting movement. It is preferable to provide the protruding guide 16 in the vertical direction on the front and rear inner walls of the bath 3.

Even if the dish storage part 5 contacts the inner wall of the washing tank 3 by the movement of the support rail 23 back-and-forth direction, since the protrusion guide 16 makes contact with a small area, it is large with respect to the lifting movement. There is no resistance. In addition, the position where the pair of rollers 25 and 25 fit with the sliding part 23a of the support rail 23 changes with a lifting position as shown in FIG. Since the support rails 23 are mounted on the pair of rollers 25 and 25, when there is a large difference in the weight of the dishes stored in the dish storage unit 5 or on one side of the dish storage unit 5. In the case where the pressing force is applied, there is a possibility that the support rail 23 is released from the rollers 25 and 25. In order to prevent this, as shown in FIG. 5, the deviation prevention part 23b which bend | folded and formed so that it may advance below the rollers 25 and 25 is provided below the support rail 23. As shown in FIG. Since there is a deviation preventing part 23b, even when an action such as tilting from the horizontal direction is exerted on the supporting rail 23, the deviation preventing part 23b contacts the roller 25, so that the roller 25 and the supporting rail ( The combined state of 23 is maintained.

As shown in FIG. 2, the dish storage part lift drive device 2 of the said structure pressurizes the lift operation button (lift operation device) 6 arrange | positioned at the front side of the upper edge part of the washing tank 3. It can work. As for the upward movement of the dish storage part 5, the washing | cleaning tank 3 has a predetermined draw-out position from the main body 4, ie, the upper opening part of the washing tank 3 fully opens, and obstructs it above the dish storage part 5 It is necessary to carry out in the state in which the washing tank 3 was drawn out to the extraction position which becomes this state which does not exist. Therefore, it is necessary to configure so that operation for raising the dish storage part 5 by the lifting operation button 6 will be possible after detecting that the washing tank 3 was drawn out to the predetermined extraction position. In addition, when the washing tank 3 is pushed into the main body 4 in the state where the dish storage part 5 is raised, the dish storage part 5 and the utensils stored therein are placed at the front edge of the main body 4. It will collide with the components of the kitchen counter 50. In order to avoid such a handling mistake, it is necessary to make it impossible to press-fit the washing tank 3 when the dish storage part 5 is in a raised position. As shown in the control structure of FIG. 6, the washing tank 3 is provided in the control part 10 which synchronously controls the two motors 32 of the drive apparatus 31 according to the operation input from the lifting operation button 6. The detection output of the cleaning tank pull-out detection device 11 which detects that the drawout to the predetermined | prescribed drawout position is input is input. In this way, the control part 10 does not receive the operation input from the lifting operation button 6, or the operation input is made in the state in which the detection output is not input from the washing tank pull-out detection apparatus 11, or the motor 32 is made. The control can be executed without starting. The cleaning tank pull-out detection device 11 detects whether the predetermined position of the cleaning tank 3 has passed the predetermined position of the main body 4. And, it can be simply configured by any one of mechanical, electrical, and optical switches.

Further, by installing the rising limit position detecting device 12 and the lower limit position detecting device 13 which detect the falling limit position and the rising limit position of the dish storage unit 5, the dish storage unit 5 moves to the lower limit position. It can detect the state which is higher. And when the detection output from the lower limit position detection apparatus 13 is not input to the control part 10, the control part 10 operates the washing tank moving lock apparatus 14. As shown in FIG. In this way, when the dish storage part 5 does not return to the lower limit position, ie, the position of the dish storage part 5 for washing dishes, the operation | movement which presses the washing tank 3 into the main body 4 is performed. Prevent it from happening. In other words, it is possible to avoid a handling mistake that causes the tableware storage portion 5 and the dishes to collide with the main body 4 or the like.

The rising limit position detecting device 12 and the lower limit position detecting device 13 include the forward and backward movement positions of the driving arm 29 and the piston 34, or the first and second outer link arms 27a and 27b, respectively. Detects the angle of rotation. And, they can be simply configured by any one of mechanical, electrical and optical switches. The lifting operation button 6 can be configured in various switch forms, but a pushbutton switch that is easy to form in a waterproof structure is preferable. This is because the amount of protrusion to the surface can be made small, and therefore, it is a preferable form to be disposed at the upper edge portion of the washing tank 3 that is easily scattered by water and has a small distance from the main body 4. In addition, it is preferable that the lifting operation button 6 is easy to operate by providing the rising button 6a and the lowering button 6b separately. When the up button 6a and the down button 6b are pressurized, the up / down driving of the dish storage unit 5 is performed by the dish storage unit elevating drive unit 2, and the table storage unit ( When the driving of the raising of 5) is stopped, the dish storage portion 5 can be raised to a desired height position. Even if the pressing operation of the up button 6a or the down button 6b is continued, the dish storage portion 5 is moved up or down by the rising limit position detecting means 12 or the lower limit position detecting means 13. When it is detected that the position has been reached, the control unit 10 controls to stop the raising and lowering of the dish storage unit 5 prior to the pressing operation of the up button 6a or the down button 6b.

In addition, the lowering button 6b is preferably configured so that the lowering operation is continued by one pressurizing operation. The control unit 10 operates the dish storage unit elevating drive unit 2 until it detects that the dish storage unit 5 has reached the lower limit position by the lower limit position detecting device 13, and thus the table storage unit ( 5) can be quickly returned to the cleaning position. As above-mentioned, the raising / lowering operation button 6 is arrange | positioned at the upper edge part of the washing tank 3, and since it cannot operate except the state which pulled out the washing tank 3, it is preferable. In addition, in the space formed between the front surface of the washing tank 3 and the front door 7, a control board for controlling the operation of the dish washing machine 1 is arranged. In this way, it becomes a preferable space also in configuring the control part 10, and wiring connection with the lifting operation button 6 becomes easy.

In addition, the elevating operation button 6 is provided in the substantially center portion of the upper edge portion of the washing tub 3, so that the operation is easy even if the operator is located on either side of the washing tub 3 taken out. However, when the worker is next to the withdrawn cleaning tank 3, the elevating operation button 6 becomes oblique rearward direction of the operator, so that it may be difficult to operate. In order to solve this, the elevating operation button 6 can also be provided at a position where the operator is most likely to operate. Moreover, a wireless connection can be applied as long as it is other than the position which the wiring connection with the washing tank 3 is possible. In addition, the elevating operation button 6 is constituted by a remote control terminal integrated with a transmitter, and a receiver is provided in the washing tank 3 so that the elevating movement of the dish storage unit 5 can be remotely operated. This improves the operability significantly.

Since the lifting operation button 6 can be operated in any way other than the worker, for example, in any form, there is a risk of damaging the tableware during the putting in and out. In order to solve this, as shown in FIG. 6, the lock button 6c is provided among the elevating operation buttons 6. When the lock button 6c is pressurized, the set raising / lowering position of the dish storage part 5 is maintained, and it can control so that it may not respond to the press operation of the up button 6a or the down button 6b.

In addition, the raising and lowering of the dish storage part 5 may be performed by the worker himself or a child holding the finger to the washing tank 3. Since the dish storage part 5 is a lattice-shaped structure, a finger is easy to be put in the dish storage part 5 in a raised position, and not only a finger but also a foreign material may be inserted. In addition, there may be a case where it is not noticed that the foreign matter has dropped into the cleaning tank 3, or a spoon or fork may be dropped during the lifting movement of the dish storage unit 5. The state in which such a finger or a foreign object is hindering the lifting movement of the dish storage unit 5 causes a failure in the dish storage unit lift drive device 2. Above all, it is necessary to prevent the danger to the human body. When a state that impedes the lifting movement of the dish storage unit 5 occurs, the dish storage unit lift drive device 2 is overloaded, and an overload current flows through the motor 32. Therefore, as shown in FIG. 6, the overload state detection apparatus 15 which detects the load current of the motor 32 is provided.

When the overload condition in which the load current increases rapidly is detected, the detection output is input to the control unit 10. In this way, since the control part 10 can stop the operation of the motor 32 and stop the lifting movement of the dish storage part 5, it can aim at safety for a human body and can prevent a breakdown. The detection of the overload state by the overload state detection device 15 is not limited to the method of detecting the overload current of the motor 32, and detects the overload state from the pressure applied to the support rail 23 or the like or its variation. You may use the method by pressure detection, etc.

The overload state detection device 15 is also effective as a double safety function when the cleaning tank drawout detection device 11 and the cleaning tank moving lock device 14 do not function normally. That is, when the washing tank draw-out detection device 11 does not function normally, the raising / lowering movement of the dish storage part 5 is attained in the state in which the washing tank 3 is not withdrawn to a predetermined | prescribed drawing position. Or when the washing tank moving lock means 14 does not function normally, the operation | movement which pushes the washing tank 3 into the main body 4 is carried out, moving the dish storage part 5 downward. In any of the above cases, since the dish storage unit 5 or the dishes and the main body 4 interfere with each other, the dish storage unit elevating drive unit 2 is overloaded, and the dish storage unit is overloaded by the overload state detection device 15. The lifting movement of (5) is stopped.

In the structure of embodiment described above, the inner side link arms 24 and 24 which are a pair of swing arm are couple | bonded with the support rail 23 as the dish storage part elevating apparatus 2 which raises and lowers the dish storage part 5. The inner link 21 which formed the parallel link is comprised.

Moreover, it can also be comprised so that the support rail 23 may be moved up and down by the cam rotated by the rotation shaft 26 rotated by the outer link 22. As shown in FIG.

Lifting movement of the dish storage unit 5 can be performed by the combination of the rack and the pinion (cogwheel) and vertical driving such as an elevator structure, but the vertical groove is formed on the side wall of the washing tank 3. Thereby, there exists a problem of the sealing property of the washing tank 3 being impaired, durability, etc. As a result, the above-described configuration in which the pivot shaft 26 penetrates the side wall is preferable.

Moreover, as a lift drive device which drives a dish storage part lifting device, it is comprised so that the outer link 22 may be driven by the drive device 31 in this embodiment. Moreover, you may drive each rotating shaft 26 directly by the motor provided with a speed reduction apparatus. By synchronously driving the respective motors, the supporting rails 23 can be moved up and down while maintaining the horizontal state. In addition, you may drive | work drive the two rotating shafts 26 by the single motor for both sides of the washing tank 3. As shown in FIG. Moreover, you may comprise so that the pinion fixed to each drive shaft 26 may be rotated by the rack driven forward and backward by the drive apparatus 31. FIG.

According to the present invention, since the dish storage unit can be moved up and down to an arbitrary height position, even when the dish washing machine is placed at a low position, the operation of dispensing the dishware into and out of the dish storage unit becomes easy, and the dishwasher is easy to use. Can provide.

Moreover, the volume of the washing tank is not largely reduced by the arrangement of the dish storage unit elevating drive device for moving the dish storage unit up and down. In addition, it is possible to provide a dishwasher having high convenience without increasing the size in vain.

Claims (4)

The tableware which has the main body which opens to the front, the washing tank which opens upward, and the tableware storing part which accommodates tableware, is accommodated in the said main body so that the washing tank can be pulled out from a front opening part, and the said tableware was equipped in the said washing tank. In the washer, In a state where the cleaning tank is pulled out from the main body, a dish storage unit elevating drive device for elevating the dish storage unit to an arbitrary height position is disposed, and when the overload condition is detected, the tableware by the dish storage unit elevating drive device An overload state detection device for stopping the lifting operation of the storage unit is disposed. dish washer. The method of claim 1, The dish storage unit elevating drive device is configured to operate based on a detection operation of a cleaning tank pull-out detection device that detects that the cleaning tank has been drawn out to a predetermined withdrawal position. dish washer. The method of claim 1, The cleaning tank movement lock device which locks the movement of the said washing tank into the said main body until the said dish storage part which moved up and moved by the said dish storage part lifting drive means returns to a predetermined lowered position is arrange | positioned. dish washer. delete

Images