Dishwasher

Abstract

To improve the convenience of a dish washing machine.SOLUTION: A dishwasher 40 has a body having an opening, a washing tank that is provided in the body and receives a washed object 8 to be washed or dried, and a robot arm 60 that is provided in the body and transfers the washed object 8. The robot arm 60 allows at least part of it to move out of the body to transfer the washed object 8 stored in the washing tank to the outside or receive the washed object 8 outside the washing tank into it.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a dishwasher for washing or drying objects to be treated, such as dishes. [Background technology]

[0002] There is a dishwasher that can be installed in a cabinet of a system kitchen (see, for example, Patent Document 1). The housing of the dishwasher / dryer described in Patent Document 1 is open at the front and houses a washing tub inside so that it can be freely inserted and removed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-168204 A Summary of the Invention [Problem to be solved by the invention]

[0004] Conventionally, users had to place dishes in the dishwasher / dryer basket while considering where and in what order to place the dishes.

[0005] The present disclosure provides techniques for improving the convenience of dishwashing machines. [Means for solving the problem]

[0006] The tableware processing machine according to the present disclosure includes a housing having an opening, a processing tank provided within the housing for accommodating objects to be washed or dried, and a transport device provided within the housing for transporting the objects. The transport device is at least partially movable to the outside of the housing, and transports the objects accommodated in the processing tank to the outside of the processing tank, or accommodates the objects outside the processing tank in the processing tank. Effect of the Invention

[0007] According to the present disclosure, the convenience of a dish processing machine can be improved. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is an external view of a system kitchen in which a dishwasher according to a first embodiment is installed. [Diagram 2] Schematic cross-sectional view of a dishwasher according to a first embodiment. [Diagram 3] Schematic cross-sectional view of a dishwasher according to a first embodiment. [Figure 4A] Dishwasher appearance [Figure 4B] Dishwasher appearance [Diagram 5] Robot arm detail [Figure 6A] Detailed view of the first link [Figure 6B] Diagram showing the operating principle of the first link [Figure 6C] FIG. 13 illustrates the operating principle of another example of the first link; [Figure 7A] Detailed view of the second link [Figure 7B] Detail of the rectangular area in Figure 7A [Figure 8] Detailed view of the third link [Figure 9] Detailed view of the hand part [Figure 10] Detailed view of the 4th link [Figure 11] 5th link detailed view [Figure 12] Detailed view of the 6th link [Figure 13] Another example of a robot arm [Figure 14A] Another example of a robot arm [Figure 14B] Side view of the inside of the retractable telescopic mechanism [Figure 14C] Top view of the inside of the retractable telescopic mechanism [Figure 15] Another example of a robot arm [Figure 16A] Another example of a robot arm [Figure 16B]Another example of a robot arm [Figure 16C] Another example of a robot arm [Figure 17] A configuration diagram of a control unit for controlling a dishwasher according to the first embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiments will be described in detail with reference to the drawings. However, more detailed description than necessary may be omitted. For example, detailed description of already well-known matters or duplicate description of substantially the same configuration may be omitted.

[0010] It should be noted that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0011] (Embodiment 1) Hereinafter, the first embodiment will be described with reference to FIGS.

[0012] The tableware processor according to the first embodiment includes a robot arm, which is an example of a transfer device that automatically transfers objects to be washed or dried. The robot arm is stored in the housing of the tableware processor, and at least a portion of the robot arm can move to the outside of the housing when transferring objects. When the tableware processor is not in use, the robot arm is stored in the housing of the tableware processor so as not to interfere with work in the kitchen, allowing efficient use of the work space. This improves user convenience.

[0013] In the following description, a dishwasher will be described as an example of a dish processing machine, but the same applies to a dish dryer.

[0014] [1-1. Configuration] FIG. 1 shows the appearance of a system kitchen in which a dishwasher according to the first embodiment is installed. Dishwasher 40 is stored inside system kitchen 50. A robot arm 60 and a camera 53 are installed in system kitchen 50. Robot arm 60 is controlled by a drive control unit (described later) based on an image captured by camera 53. Robot arm 60 automatically places an article to be washed 8 placed on a worktop 55 or in a sink 56 of system kitchen 50 inside dishwasher 40. Robot arm 60 also automatically removes an article to be washed 8 placed inside dishwasher 40. Robot arm 60 may be installed inside the housing of dishwasher 40.

[0015] 2 and 3 show a schematic cross section of dishwasher 40 according to embodiment 1. FIG. 2 and FIG. 3 show the configuration other than robot arm 60. Body 1 of dishwasher 40 is a housing having a front opening, and includes washing tank 2 therein. Washing tank 2 is supported by means such as a pull-out rail (not shown) so that it can be pulled out forward and backward from the front opening of body 1. Washing tank 2 has an opening at the top, and items 8 to be washed, such as dishes, can be put in and taken out from the opening. A basket 14 is installed in washing tank 2. In the example shown in the figure, one-tiered basket 14 is installed, but two or more tiered baskets may be installed. Also, a drive unit (not shown) may be provided in body 1 to automatically pull out washing tank 2 without the user having to pull out washing tank 2.

[0016] When washing the object 8 to be washed, cold or hot water is supplied into the washing tank 2 from the outside via the water supply valve 3. The washing water supplied into the washing tank 2 is drained from a drain hole 4 provided at the bottom of the washing tank 2, and then sprayed from a washing nozzle 7 onto the object 8 to be washed by a washing pump 5 communicating with the drain hole 4, and circulates inside the washing tank 2. A heater 9 for heating the washing water is provided between the washing nozzle 7 and the bottom of the washing tank 2. A residue filter 6 for collecting residue is provided in the drain hole 4. A control unit 12 controls electrical components such as the water supply valve 3 and the washing pump 5.

[0017] The cage 14 is configured to be movable up and down by a lifting means when the cleaning tank 2 is pulled out from the main body 1. The lifting means includes a fixed plate fixed to the bottom of the cleaning tank 2 and X-shaped lifting links 18, 19. The lifting links 18, 19 have the same length and are installed so as to intersect at a central axis 17. At least one lower end of the lifting links 18, 19 is pivoted to an elongated hole provided at the left and right ends of the fixed plate. The lower end of the lifting link 18 or 19 slides in the elongated hole, thereby lifting and lowering the upper end of the lifting links 18, 19, and the cage 14 placed and supported on the lifting links 18, 19. FIG. 2 shows the cage 14 in a lowered state, and FIG. 3 shows the cage 14 in a raised state. The cage 14 may be raised and lowered using an actuator such as a ball screw, a belt, or an air cylinder as the lifting means.

[0018] The cage 14 may be provided so as to be automatically raised and lowered. In this case, the lifting means includes a driving means such as a motor for raising and lowering the lifting links 18, 19, and a control unit for controlling the driving means. The control unit may raise and lower the cage 14 in response to a button operation by the user, or may raise and lower the cage 14 automatically when a sensor or the like detects that the cleaning tank 2 has been pulled out from the main body 1. The cage 14 may be provided so as to be manually raised and lowered by the user. In this case, the lifting means includes a lifting mechanism such as a rotating shaft for raising and lowering the lifting links 18, 19, and an operating means such as a handle for operating the lifting mechanism. The lifting mechanism may be a mechanism for raising and lowering the lifting links 18, 19 by a spring or the like when the cleaning tank 2 is pulled out from the main body 1.

[0019] 4A and 4B show the appearance of the dishwasher 40. FIG. 4A shows a state in which the robot arm 60 is stored in the main body 1, and FIG. 4B shows a state in which the robot arm 60 is unfolded from the main body 1. The robot arm 60 is installed on the side wall of the washing tank 2 of the dishwasher 40, and is drawn out together with the washing tank 2 when the washing tank 2 is drawn out from the main body 1. When the washing tank 2 is drawn out from the main body 1, the robot arm 60 is moved upward by the lifting means 61. At this time, the arm portion 62 is unfolded, and at least a part of the arm portion 62 and the hand portion 63 are moved above the worktop 55. This allows the hand portion 63 to grip the object 8 to be washed that is placed on the worktop 55 and move it into the washing tank 2. When the washing tank 2 is to be stored in the main body 1, the arm portion 62 is folded and the robot arm 60 is moved downward by the lifting means 61. The robot arm 60 is stored in the main body 1 together with the washing tank 2. 4A, the arm unit 62 is stored between the right side wall of the cleaning tank 2 and the main body 1, and between the front side wall of the cleaning tank 2 and the main body 1, and the hand unit 63 and the robot hand 78 are stored between the front side wall of the cleaning tank 2 and the main body 1. By employing the Cartesian coordinate type robot arm 60, it is possible to easily store the robot arm 60 around the rectangular parallelepiped cleaning tank 2.

[0020] FIG. 5 shows the details of the robot arm 60. The arm portion 62 of the robot arm 60 includes a first link 62a, a second link 62b, and a third link 62c. The third link 62c moves the hand portion 63 in the width direction (X-axis direction) of the cleaning tank 2. The second link 62b moves the third link 62c and the hand portion 63 in the height direction (Z-axis direction). The first link 62a moves the second link 62b, the third link 62c, and the hand portion 63 in the depth direction (Y-axis direction) of the cleaning tank 2. When the robot arm 60 is stored in the main body 1, the second link 62b or the third link 62c may be rotated or folded so as to overlap with the first link 62a. In this case, when the cleaning tank 2 is pulled out from the main body 1 and the robot arm 60 is moved upward, the second link 62b and the third link 62c may be deployed as shown in FIG. 5.

[0021] FIG. 6A shows the details of the first link 62a. The first link 62a has a multi-stage telescopic mechanism using a belt pulley mechanism. This allows the hand unit 63 to move up to above the worktop 55 at the back of the cleaning tank 2. The first link 62a has a lower link 64a, a middle link 64b, an upper link 64c, a motor 65, a ball screw 66, a ball screw nut 67, a timing belt 68, and a linear guide 69. When the ball screw 66 is rotated by the motor 65, the ball screw nut 67 moves. Since the ball screw nut 67 and the middle link 64b are fixed, the middle link 64b moves along the linear guide 69 with the movement of the ball screw nut 67. Since the timing belt 68 of the lower link 64a and the middle link 64b is fixed, when the middle link 64b moves relative to the lower link 64a, the timing belt 68 of the middle link 64b rotates. Since the timing belt 68 of the middle link 64b and the upper link 64c are fixed, as the timing belt 68 of the middle link 64b rotates, the upper link 64c moves along the linear guide 69. In this way, the lower link 64a, the middle link 64b, and the upper link 64c expand and contract in unison, and the second link 62b fixed to the upper link 64c moves in the Y-axis direction.

[0022] 6B shows the operating principle of the first link 62a. When the ball screw nut 67 is moved in the positive direction from the contracted state in the center, it expands in the positive direction as shown on the right side. When the ball screw nut 67 is moved in the negative direction, it expands in the negative direction as shown on the left side.

[0023] Fig. 6C shows the operating principle of another example of the first link 62a. In the example shown in Fig. 6C, the lower link 64a also has a timing belt and a pulley, and by rotating the pulley of the lower link 64a by a motor 65, the lower link 64a, the middle link 64b, and the upper link 64c expand and contract in unison.

[0024] Fig. 7A shows the second link 62b in detail. Fig. 7B shows the rectangular portion of Fig. 7A in detail. The second link 62b includes a motor 70, a timing belt 71, a ball screw 72, a ball screw nut 73, and a linear guide 74. The rotation of the motor 70 is transmitted to the ball screw 72 by the timing belt 71, and the third link 62c fixed to the ball screw nut 73 moves in the Y-axis direction along the linear guide 74.

[0025] 8 shows the details of the third link 62c. The third link 62c includes a motor 75, a timing belt 76, and a connecting portion 77. The timing belt 76 is rotated by the rotation of the motor 75, and the connecting portion 77 to which the hand unit 63 is connected moves in the X-axis direction.

[0026] 9 shows the details of the hand unit 63. The hand unit 63 of the robot arm 60 includes a fourth link 62d, a fifth link 62e, and a sixth link 62f. The sixth link 62f rotates the robot hand 78 around the T-axis (wrist turning). The fifth link 62e rotates the sixth link 62f and the robot hand 78 around the B-axis (wrist bending). The fourth link 62d rotates the fifth link 62e, the sixth link 62f, and the robot hand 78 around the R-axis (wrist rotation).

[0027] 10 shows the details of the fourth link 62d. The fourth link 62d includes a motor 79 and a harmonic drive (registered trademark) reducer 80. The rotation of the motor 79 is reduced by the harmonic drive reducer 80, causing the fifth link 62e to rotate around the R axis.

[0028] 11 shows the details of the fifth link 62e. The fifth link 62e includes a motor 81, a timing belt 82, a worm 83, and a worm wheel 84. The rotation of the motor 81 is transmitted to the worm 83 by the timing belt 82, and is decelerated by the worm 83 and the worm wheel 84, causing the sixth link 62f to rotate around the B axis.

[0029] 12 shows the sixth link 62f in detail. The sixth link 62f includes a motor 85, a timing belt 86, a worm 87, and a worm wheel 88. The rotation of the motor 85 is transmitted to the worm 87 by the timing belt 86 and is decelerated by the worm 87 and the worm wheel 88, causing the robot hand 78 to rotate around the T axis.

[0030] By using a worm reduction mechanism in the rotary joints of the fifth link 62e and the sixth link 62f, where a moment due to gravity acts, it is possible to prevent the rotary joints from rotating due to gravity in the event of a power outage, which would cause an object grasped by the robot hand 78 to fall off.

[0031] As described above, the robot arm 60 in the first embodiment has a Cartesian coordinate type movement mechanism, and each degree of freedom is independent, so that the accumulation of errors is suppressed. This improves the accuracy of the control of the movement and posture of the robot hand 78.

[0032] FIG. 13 shows another example of the robot arm 60. The arm unit 62 of the robot arm 60 shown in this figure includes a first link 89a, a second link 89b, and a third link 89c. The third link 89c moves the hand unit 63 in the height direction (Z-axis direction). The second link 89b moves the third link 89c and the hand unit 63 in the width direction (X-axis direction) of the cleaning tank 2. The first link 89a moves the second link 89b, the third link 89c, and the hand unit 63 in the depth direction (Y-axis direction) of the cleaning tank 2. The movement mechanism of the first link 89a is the same as that of the first link 62a. The movement mechanisms of the second link 89b and the third link 89c may be the same as that of the second link 62b or the third link 62c.

[0033] 14A shows another example of the robot arm 60. In the robot arm 60 shown in this figure, the second link 89b has a winding type extension mechanism 90. The other configuration is similar to the robot arm 60 shown in FIG.

[0034] Fig. 14B is a side view of the inside of the winding type telescopic mechanism 90, and Fig. 14C is a top view of the winding type telescopic mechanism 90. The telescopic mechanism 90 includes a plurality of blocks 91, and the blocks 91 are extended and retracted by pushing out and winding them up. This can eliminate the protrusion of the second link 89b in the width direction of the cleaning tank 2.

[0035] FIG. 15 shows another example of the robot arm 60. The robot arm 60 shown in this figure has a cylindrical coordinate type movement mechanism. The robot arm 60 includes a first link 92a, a second link 92b, and a third link 92c. The third link 92c moves the hand unit 63 in the height direction. The second link 92b moves the third link 92c and the hand unit 63 in the radial direction. The first link 92a moves the second link 92b, the third link 92c, and the hand unit 63 in the circumferential direction. This allows the structure of the arm unit 62 to be simplified, thereby increasing the rigidity and reducing the weight of the arm unit 62.

[0036] 16A, 16B, and 16C show another example of the robot arm 60. The robot arm 60 shown in FIG. 16A has an arm section 62 of an orthogonal joint type. In this case, the robot arm 60 may be installed on the side wall of the cleaning tank 2. The robot arm 60 shown in FIG. 16B has an arm section 62 of a vertical multi-joint type. In this case, the robot arm 60 may be installed on the side wall or the top surface of the main body 1. The robot arm 60 shown in FIG. 16C has an arm section 62 of a horizontal multi-joint type. In this case, the robot arm 60 may be installed on the upper part, the side wall, or the upper part of the cleaning tank 2.

[0037] 17 shows the configuration of a control unit for controlling the dishwasher according to embodiment 1. Control unit 12 is realized by hardware such as a microcomputer, a microcontroller, and an integrated circuit.

[0038] The control unit 12 includes a process control unit 23, a drive control unit 24, and a memory 25. These components are realized in hardware by the CPU, memory, and other LSIs of any computer, and in software by programs loaded into the memory, but here the functional blocks realized by the cooperation of these are depicted. Therefore, it will be understood by those skilled in the art that these functional blocks can be realized in various forms, such as hardware alone or a combination of hardware and software.

[0039] Process control unit 23 controls the washing operation by dishwasher 40. Process control unit 23 receives instructions from a user from operation unit 22 consisting of buttons, switches, etc. provided on main body 1 of dishwasher 40, and controls the washing operation in accordance with the instructions. Process control unit 23 may execute the washing process, rinsing process, and drying process consecutively, may execute only one of the processes, or may execute a combination of two or more of the processes in any order.

[0040] The drive control unit 24 controls the robot arm 60. The drive control unit 24 controls the movement of the arm unit 62 and the hand unit 63 based on the image captured by the camera 53, and causes the robot hand 78 to grip the object to be cleaned 8. The drive control unit 24 controls the deployment and storage of the arm unit 62 or the hand unit 63 of the robot arm 60.

[0041] [1-2. Operation] The operation and function of the dishwasher 40 configured as above will be described below.

[0042] When the user pulls out the washing tank 2 forward from the main body 1 of the dishwasher 40 and moves the basket 14 upward, the drive control unit 24 moves the robot arm 60 upward. At this time, the drive control unit 24 moves the robot arm 60 so that at least a part of the robot arm 60 is outside the main body 1 and the washing tank 2, and unfolds the arm unit 62. The drive control unit 24 controls the robot arm 60 to grasp the object 8 to be washed that is on the worktop 55 or the like and place it inside the washing tank 2. When the movement of the object 8 to be washed is completed, the drive control unit 24 returns the arm unit 62 to its original position and returns the robot arm 60 to its original position. The user puts detergent into the washing tank 2, stores the washing tank 2 in the main body 1, and starts washing. The robot arm 60 is stored in the main body 1 together with the washing tank 2.

[0043] The process control section 23 opens the water supply valve 3 to supply cold or hot water into the cleaning tank 2. The cleaning water supplied into the cleaning tank 2 passes through the residue filter 6 and is sucked into the cleaning pump 5 through the drain hole 4, and is supplied by the cleaning pump 5 to the cleaning nozzle 7 provided on the inner bottom of the cleaning tank 2. The cleaning water sprayed from the cleaning nozzle 7 cleans the object 8 to be cleaned, and then circulates through a path that returns to the drain hole 4. At this time, residues and the like that have fallen off the object 8 to be cleaned flow into the residue filter 6 together with the cleaning water, and residues too large to pass through the residue filter 6 are collected by the residue filter 6.

[0044] When removing the article 8 after washing, the user pulls the washing tank 2 forward from the dishwasher body 1 and moves the basket 14 upward, and the drive control unit 24 moves the robot arm 60 upward. The drive control unit 24 controls the robot arm 60 to remove the article 8 from the basket 14 and place it on the work top 55 or the like. When the movement of the article 8 has been completed, the drive control unit 24 returns the arm unit 62 to its original position and returns the robot arm 60 to its original position.

[0045] [1-3. Effects, etc.] As described above, in this embodiment, the dishwasher 40 includes the main body 1 having an opening, the washing tank 2 provided in the main body 1 for accommodating objects to be washed or dried, and the robot arm 60 provided in the main body 1 for transporting the objects, at least a portion of which can move outside the main body 1, and transports the objects accommodated in the washing tank 2 to the outside of the washing tank 2, or accommodates the objects outside the washing tank 2 in the washing tank 2. This allows the robot arm 60 to automatically take in and out the objects to be treated, improving the convenience of the user. In addition, when the dishwasher is not in use, the robot arm 60 is stored in the main body 1 of the dishwasher 40, allowing the working space to be used efficiently.

[0046] In this embodiment, the washing tank 2 is provided so as to be freely inserted and removed within the main body 1, and when at least a part of the washing tank 2 is removed from the main body 1, at least a part of the robot arm 60 is moved to the outside of the main body 1, and when the washing tank 2 is stored within the main body 1, the robot arm 60 is stored within the main body 1. This allows the dishwasher 40 to be made compact, and the working space to be used efficiently.

[0047] In this embodiment, the robot arm 60 is installed on the side wall of the washing tub 2. This allows the dishwasher 40 to be made compact, and the working space to be used efficiently. Also, since the robot arm 60 is not provided inside the washing tub 2, there is no need for waterproofing, heat resistance, or detergent resistance, and an inexpensive dishwasher can be provided.

[0048] In this embodiment, the robot arm 60 includes a hand unit 63 that holds the workpiece, and an arm unit 62 that moves the hand unit 63 to a predetermined position, and the arm unit 62 has a Cartesian coordinate type movement mechanism, which makes it possible to suppress accumulation of errors and improve the movement accuracy.

[0049] In this embodiment, the main body 1 is stored in a kitchen, and the robot arm 60 receives the object to be treated placed on the kitchen in the cleaning tank 2. This allows the work space to be used efficiently.

[0050] (Other embodiments) As described above, the first embodiment has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. In addition, it is also possible to combine the components described in the first embodiment to create new embodiments.

[0051] Therefore, other embodiments will be exemplified below.

[0052] In the first embodiment, an example is shown in which the cleaning tank 2 having an opening at the top is provided so as to be removable from the main body 1 having a front opening at the front, but in another example, a door for opening and closing the cleaning tank 2 may be provided above the cleaning tank 2. In this case, the cleaning tank 2 may be provided so as to be removable from the main body 1 at the front, or may be fixedly stored inside the main body 1.

[0053] In the embodiment, an example has been shown in which dishwasher 40 is housed inside system kitchen 50, but in another example, dishwasher 40 may be configured as an independent device.

[0054] It should be noted that the above-described embodiments are intended to illustrate the technology of the present disclosure, and various modifications, substitutions, additions, omissions, and the like can be made within the scope of the claims or their equivalents. [Industrial Applicability]

[0055] INDUSTRIAL APPLICABILITY The present invention can be used in a tableware treating machine for washing or drying objects to be treated, such as tableware. [Explanation of symbols]

[0056] 1 Main unit 2. Cleaning tank 3. Water supply valve 4 Drain hole 5. Cleaning pump 6 Filters 7 Cleaning nozzle 8 Items to be washed 9 Heater 12 Control section 17 Axis 18 Lifting link 22 Control section 23 Process Control Section 24 Drive control unit 25 Memory 40 Dishwasher 50 System kitchen 53 Camera 55 Worktop 56 Sink 60 Robot Arm 61 Lifting means 62 Arm section 62a Link 1 62b 2nd link 62c 3rd link 62d 4th link 62e 5th link 62f 6th link 63 Hand section 64a Lower link 64b Middle link 64c Upper link 65 Motor 66 Ball screw 67 Ball screw nut 68 Timing belt 69 Linear Guide 70 Motor 71 Timing belt 72 Ball screw 73 Ball screw nut 74 Linear Guide 75 Motor 76 Timing belt 77 Connecting part 78 Robot Hand 79 Motor 80 Harmonic Drive Reducer 81 Motor 82 Timing belt 83 Warm 84 Worm Wheel 85 Motor 86 Timing belt 87 Warm 88 Worm Wheel 89a Link 1 89b 2nd link 89c 3rd link 90 Telescopic mechanism 91 Block 92a Link 1 92b 2nd link 92c 3rd link.

Claims

1. A housing that is stored in a kitchen and has an opening; A treatment tank provided in the housing and configured to accommodate a treatment object to be washed or dried; A transfer device provided in the housing and configured to transfer the object to be processed; A drive control unit that controls the movement of the transport device; Equipped with The treatment tank is provided in the housing so as to be freely inserted and removed, The transfer device has a hand unit that holds the object to be treated and an arm unit that moves the hand unit to a predetermined position, and is installed in a space outside a side wall of the treatment tank; The transfer device is a tableware processing machine that transfers the object to be processed contained in the treatment tank to the outside of the treatment tank, or that receives the object to be processed that is outside the treatment tank into the treatment tank, The drive control unit controls the transfer device so that, when the treatment tank is drawn out from the housing, at least a part of the transfer device is drawn out and then moved to an outside upper part of the treatment tank. Dishwasher.

2. When the treatment tank is accommodated in the housing, the drive control unit controls the transfer device to be accommodated in the housing.

2. The dishwasher of claim 1.

3. The arm portion has a Cartesian coordinate type movement mechanism.

3. A dish processing machine according to claim 1 or 2.

4. The transfer device accommodates the object to be treated placed on the kitchen in the treatment tank.

4. A dish processing machine according to claim 1.

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