JP2019024678A - dishwasher - Google Patents

Abstract

To provide a user-friendly dishwasher adapted to diversified designs of a system kitchen, which allows a dish basket to be drawn to a position where dishes can be stored in the dish basket easily even when there is no operation switch or handle on a door body that covers a front face of the dishwasher.SOLUTION: A dishwasher includes a door body 40 that covers a front opening 32 of a housing 31, a washing tank 33 (support mechanism) supported in the housing 31 in a state that the door body 40 can be moved back and forth, a driving device 51 for moving the door body 40 in a forward direction or in a backward direction, an acceleration sensor 45 for detecting vibration applied to at least the door body 40, and a control part 44. The driving device 51 includes a driving motor 52, and the control part 44 is configured so as to drive the driving motor 52 upon receipt of a predetermined signal from the acceleration sensor 45. The control part 44 is configured so as to detect a signal from the acceleration sensor 45 when driving the driving motor 52, and start the driving after a predetermined time T2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a built-in type dishwasher for cleaning and drying dishes.

  A conventional dishwasher is configured as shown in FIG. 11 (see, for example, Patent Document 1). FIG. 11 is a side longitudinal sectional view of a conventional dishwasher. The main body 14 of the dishwasher has an open front. A cleaning tank 15 having an upper surface opened inside the main body 1 is provided so as to be drawn forward. In FIG. 11, a one-dot chain line indicates a state in which the cleaning tank 15 is drawn.

  A cleaning nozzle 8, a table basket 4, and a heater (not shown) are provided inside the cleaning tank 15. A cleaning pump 7 and a water supply valve 9 are provided outside the cleaning tank 15. The water supply valve 9 is connected to the water supply and introduces the tap water to be the cleaning water into the cleaning tank 15. The cleaning pump 7 circulates the cleaning water stored in the cleaning tank 15. The washing nozzle 8 is rotatably provided, and washing water pumped by the washing pump 7 is jetted. The tableware basket 4 is detachably provided. The tableware basket 4 holds the tableware 3 accommodated therein, and is configured so that the washing water is efficiently applied to the tableware 3. The heater heats cleaning water or drying air.

  A slide rail 16 is provided on the outer side surface of the cleaning tank 15, and a slide rail 17 is provided on the inner side surface of the main body 1. The slide rail 16 slides while being held by the slide rail 17. The cleaning tank 15 is supported by the main body 14 via the slide rails 16 and 17 and is configured to be able to be pulled out or pushed in from the main body 14. An inner lid 21 that closes the upper surface opening of the cleaning tank 15 is provided in the upper part of the main body 14. The inner lid 21 is configured to close the upper surface opening of the cleaning tank 15 via the packing 22 when the cleaning tank 15 is accommodated in the main body 14.

  A door 23 is provided at the front of the cleaning tank 15. The door 23 covers the front opening of the main body 1 when the cleaning tank 15 is accommodated in the main body 1. A handle 24 and an operation switch are provided on the front upper portion of the door 23. The user pulls out the cleaning tank 15 by placing a hand on the handle portion 24. Further, the operation switch is operated to set the washing operation of the washing process, the rinsing process and the drying process of the dishwasher.

  Further, a rack gear 18 having gear teeth formed in a straight line is attached to the lower portion of the cleaning tank 15. The length of the rack gear 18 is configured to be longer than the stroke with which the cleaning tank 15 is pulled out from the main body 1. A drive motor 19 having a speed reduction mechanism is fixed to the main body 14. A gear 20 that meshes with the rack gear 18 is attached to the motor shaft of the drive motor 19. The drive motor 19 is configured to be able to rotate forward or reverse. The cleaning tank 15 is driven via the rack gear 18 by the rotation of the drive motor 19.

  The operation of the dishwasher configured as described above will be described. The user pulls out the cleaning tank 15 in order to set the tableware 3 in the cleaning tank 15. At this time, the handle 24 can be pulled out by hand, but the washing tank 15 can be pulled out by operating the operation switch to drive the drive motor 19. When the operation switch is operated, the drive motor 19 rotates forward at a constant speed to rotate the gear 20 of the motor shaft in a predetermined direction. The gear 20 exerts a force so as to push the meshed rack gear 18. Accordingly, the cleaning tank 15 comes out from the main body 14 to the front surface via the slide rails 16 and 17. When the cleaning tank 15 comes out to a position set arbitrarily, such as a position where the tableware 3 can be stored, the drive motor 19 stops and the cleaning tank 15 stops.

  Next, the user places the tableware 3 in the tableware basket 4 and puts in detergent. The leading end of the washing tank 15 that has been pulled out is lowered by the weight of the tableware 3. Then, when the user operates the operation switch, the drive motor 19 rotates in reverse. The gear 20 applies a force so as to retract the meshed rack gear 18. Thereby, the washing tank 15 is drawn into the main body 14 via the slide rails 16 and 17 and stored. At the same time, the inner lid 21 closes the upper surface opening of the cleaning tank 15.

  Then, the user operates the operation switch to set the cleaning course and starts the cleaning operation. As a result, the control device (not shown) controls the cleaning pump 7, the water supply valve 9, the heater, the drainage pump (not shown) and the like, and cleans the tableware 3 stored in the tableware basket 4. For example, the control device performs a cleaning operation set in the order of a washing process, a rinsing process, and a drying process.

  After the washing operation is finished, the user takes out the tableware 3. When the user operates the operation switch in the same manner as before the cleaning operation, the drive motor 19 rotates and the cleaning tank 15 is pulled out to a predetermined position. According to the smooth rotation of the drive motor 19, the tableware 3 accommodated in the washing tank 15 is handled gently without contacting each other.

  Note that a decorative panel of the same design made of the same material as the door and drawer of the system kitchen is attached to the lower front portion of the door 23. With such a decorative panel, the design of the system kitchen is improved.

JP 2002-345712 A

  In the conventional configuration, the design of the system kitchen can be improved by attaching a decorative panel having the same design as the door and drawer of the system kitchen to the lower front portion of the door. However, the handle and the operation switch are configured with a dishwasher-specific design, and could not be perfectly matched to the design of the system kitchen. And in the design of diversifying system kitchens, there are some that have a novel design that omits the handle part and drives the drawer with an electric motor etc., and there is a problem that it is necessary to match these .

  In addition to drawers such as furniture, there are those equipped with a mechanism that pushes out drawers and doors of household appliances such as refrigerators with a push rod or the like. However, in these configurations, the amount of opening of the drawer is small, and the user needs to draw out by hand to a desired position. Cited Document 1 describes that as a dishwasher, when the washing tub comes to a set position, the drive motor stops and the washing tub stops, and the amount of the washing tub drawn out depends on the tableware. It has been suggested that the set will be open enough for immediate set-up. However, the cited document 1 does not describe how the stop position of the cleaning tank is set and controlled.

  Furthermore, when the washing tank is pulled out by the drive motor, there is a problem that it is necessary to control the malfunction so as not to occur when a user or other object is present in front of the door.

The present invention solves the above-described conventional problems, and adapts to the diversified design of the system kitchen, so that the washing tub can be easily accommodated even when there is no operation switch on the door covering the front of the dishwasher. The purpose is to provide an easy-to-use dishwasher that is pulled out to a position.

  In order to solve the above-described conventional problems, a dishwasher according to the present invention includes a housing having a front opening on the front surface, a tableware basket that is provided in and out of the housing and accommodates the tableware, and the front opening. A cover body, a support mechanism for supporting the door body in a state in which the door body can be moved back and forth, a drive device for moving the door body at least in the forward or backward direction, and at least the door body. A sensor for detecting vibrations, and a control unit, wherein the drive device has a drive unit, and the control unit is configured to drive the drive unit when receiving a predetermined signal from the sensor. In the dishwasher, the control unit is configured to start driving after a predetermined time T2 after detecting a signal from the sensor when driving the driving unit. .

  With this configuration, the dishwasher can move the door without requiring the user a great effort. Further, the tableware basket can be pulled out to a position where the tableware can be easily accommodated even when the operation unit or the handle is not provided on the door covering the front surface. This improves usability. Moreover, it can adapt to the diversified design of the system kitchen. Furthermore, when the washing water is jetted from the washing nozzle in the washing process, it is possible to wait for the washing pump to stop, and the washing water can be prevented from jumping out of the washing tank.

  The present invention allows the user to pull out the tableware basket without requiring a great deal of effort, and allows the tableware to be easily stored in the tableware basket even when there is no operation unit or handle on the door covering the front surface. A good dishwasher can be provided.

Side surface longitudinal cross-sectional view of the dishwasher in Embodiment 1 of this invention Side longitudinal sectional view of the dishwasher in the present embodiment Side surface longitudinal cross-sectional view of the dishwasher in Embodiment 2 of this invention Side longitudinal sectional view of the dishwasher in the present embodiment Side surface longitudinal cross-sectional view of the dishwasher in Embodiment 3 of this invention Side surface longitudinal cross-sectional view of the dishwasher in Embodiment 4 of this invention Front longitudinal cross-sectional view of the dishwasher in Embodiment 4 of this invention 7 is an enlarged view of the main part of FIG. Side surface longitudinal cross-sectional view of the dishwasher in other embodiment of this invention Side surface longitudinal cross-sectional view of the dishwasher in other embodiment of this invention Side view of a conventional dishwasher

  A dishwasher according to a first aspect of the present invention includes a housing having a front opening on the front surface, a tableware that can be inserted into and removed from the housing and houses the tableware, a door that covers the front opening, and the door A support mechanism that supports the housing in a state in which the door body can be moved back and forth, a drive device that moves the door body at least in the forward or backward direction, a sensor that detects at least vibration applied to the door body, A dishwasher configured to drive the drive unit when receiving a predetermined signal from the sensor, the drive unit having a drive unit, The control unit is configured to start driving after a predetermined time T2 after detecting a signal from the sensor when driving the driving unit.

  With this configuration, when cleaning water is sprayed from the cleaning nozzle in the cleaning process, it is possible to wait for the cleaning pump to stop, and it is possible to prevent the cleaning water from jumping out of the cleaning tank. Further, when the driving signal is continuously detected and the driving is repeated, it is possible to ensure a temporary stopping of the driving unit so that a large starting current does not continue, and an excessive temperature rise of the driving unit can be prevented. Moreover, if it is notified that the door body is driven and moved during the predetermined time T2, safety is improved.

In particular, the second invention is the first invention,
A door closing detection sensor for detecting that the door body is closed is provided, and when the control unit detects a signal indicating that the door body is closed by the door closing detection sensor, a signal of the door closing detection sensor is provided. The signal from the sensor that detects the vibration is not detected for a predetermined time T3 after the detection of the signal, or the driving of the driving unit is suspended even if the signal of the sensor is detected It is. The entire casing including tableware vibrates due to a shock when the door is closed. With this configuration, it is possible to prevent erroneous detection of vibration when closed. Moreover, the temporary stop of the drive unit can be ensured, and an excessive temperature rise of the drive unit can be prevented.

The third invention is particularly the second invention,
An informing unit is provided for notifying a user of an operation state, and the control unit detects the signal that the door body is closed by the door close detection sensor, and the drive unit is in a forward direction in which the door body is opened. When the signal of the door close detection sensor is still detected for a predetermined time T4 after driving, the occurrence of an abnormality is notified. With this configuration, it is possible to determine that the door body is not moving and notify the user of the abnormality of the door body.

The fourth invention is the third invention, in particular,
The control unit is configured to notify that an abnormality has occurred and to stop further driving when the notification that the door is not moving is repeated a predetermined number of times. With this configuration, the lock current of the drive unit can be prevented from being repeated, and an excessive temperature rise of the drive unit can be prevented. In addition, it is possible to notify the user that it is necessary to determine whether an abnormality has occurred, such as whether the door does not move due to an obstacle or the like, or whether the drive unit or the door closing detection sensor has failed.

The fifth invention is particularly any one of the second to fourth inventions,
The control unit drives the drive unit in a backward direction in which the door body is closed, and an abnormality occurs when the signal of the door close detection sensor is not detected despite detecting that the drive unit has stopped. It is comprised so that may be alert | reported. This configuration can inform the user that the door is not completely closed.

The sixth invention is the fifth invention, in particular,
The control unit is configured to notify that an abnormality has occurred and to stop further driving when a notification that the door is not completely closed is repeated a predetermined number of times. With this configuration, the lock current of the drive unit can be prevented from being repeated, and an excessive temperature rise of the drive unit can be prevented. Further, it is possible to inform the user that it is necessary to determine whether an abnormality has occurred such as whether the door body is not closed by an obstacle or the like, or whether the drive unit or the door close detection sensor has failed. Then, it is possible to prevent the cleaning operation from being performed without the door body being closed.

The seventh invention is any one of the first to sixth inventions.
An operation unit and a display unit are provided, and at least the user sets the vibration applied by the user to the door body in order for the control unit to drive the drive unit, or the operation setting of the drive unit. While being able to set with an operation part, the setting value can be confirmed with the said display part. With this configuration, the user can freely set the number of times that vibration is applied by knocking or the like, and can confirm the setting, improving usability.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 and FIG. 2 are side longitudinal sectional views of a dishwasher in which the washing tub according to Embodiment 1 of the present invention has a drawer type. FIG. 1 shows a state where the cleaning tank is housed in the housing. FIG. 2 shows a state where the cleaning tank is pulled out from the inside of the housing to the fully open position. As shown in FIG. 1, the dishwasher is housed in a system kitchen K. The housing 31 has a front opening 32 having an entire front surface opened. The cleaning tank 33 is provided in the housing 31 so as to be movable in the front-rear direction, and is provided so as to be able to be taken in and out from the front opening 32. In the present embodiment, the front direction is a direction in which the cleaning tank 33 is pulled out, and the rear direction is a direction in which the cleaning tank 33 is stored.

  Slide rails 34 are installed in the substantially horizontal direction on the inner sides of both side surfaces of the casing 31. The cleaning tank 33 is supported by the slide rail 34 and moves along the slide rail 34. The cleaning tank 33 has an upper surface opening 35 whose upper surface is opened, and a tableware 36 that is an object to be cleaned is accommodated.

  An inner lid 37 for closing the upper surface opening 35 and a parallel link mechanism 38 for supporting the inner lid 37 are provided in the upper portion of the housing 31. The parallel link mechanism 38 is configured to move the inner lid 37 up and down in two pairs of left and right in a pair of left and right. A seal portion 39 is provided on the outer periphery of the lower surface of the inner lid 37. The seal portion 39 seals the upper surface opening 35 when the inner lid 37 is lowered. The parallel link mechanism 38 lifts the inner lid 37 when the cleaning tank 33 is pulled out from the housing 31. Thereby, the seal part 39 does not interfere with the movement of the cleaning tank 33.

  The cleaning tank 33 is provided with a door 40 at the front. The door body 40 includes an operation panel 41 provided on the front surface of the cleaning tank 33 and a decorative plate 42 attached to the operation panel 41. The decorative plate 42 covers the entire front opening 32 when the cleaning tank 33 is accommodated in the housing 31. The decorative board 42 is the same material and the same color as the decorative board which is a door of the system kitchen K such as a drawer. Furthermore, a handle 43 is attached to the decorative plate 42 as a handle when the user pulls out the cleaning tank 33. The same handle 43 as the system kitchen K is attached to the handle 43, and the entire system kitchen K is configured to be a unified design. Note that some system kitchens K include a design composed of only the decorative plate 42 that does not have the handle 43 on the front surface. In this configuration, the door body 40 is pulled out by the driving device, and the upper part or the side part of the decorative plate 42 functions as the handle 43. In the present embodiment, these are not distinguished.

  In the present embodiment, the cleaning mechanism 33 and the slide rail 34 are exemplified as the support mechanism S that supports the housing 31 in a state where the door body 40 can be moved back and forth.

  A control unit 44 is provided on the back surface of the operation panel 41. The control unit 44 controls all operations of the dishwasher and executes a washing operation. The washing operation includes a washing step, a rinsing step, and a drying step. The washing step is a step of removing dirt from the tableware 36 using a detergent or the like. The rinsing step is a step of removing the detergent. A drying process is a process of drying the tableware 36 cleaned neatly.

The control unit 44 has a printed circuit board (not shown). An acceleration sensor 45 is provided on the printed circuit board. The acceleration sensor 45 detects the magnitude of substantial acceleration in three axis directions (X axis: front-rear direction, Y axis: left-right direction, Z axis: vertical direction). The acceleration sensor 45 has directions and magnitudes of various accelerations generated in the dishwasher, such as acceleration caused by movement of the door body 40 and the washing tub 33 in the front-rear direction and acceleration caused by vibration applied to the door body 40. Is detected. Therefore, it is desirable that the printed circuit board be mounted without any problem in orientation and strength so that the acceleration sensor 45 can reliably detect the acceleration. And the control part 44 controls operation | movement of a dishwasher with the signal which the acceleration sensor 45 detects and outputs the direction and magnitude | size of an acceleration, the state of the washing tank 33, etc.

  The substantial acceleration in each direction means that the acceleration sensor 45 is attached to the printed circuit board and the printed circuit board is fixed at a predetermined position in accordance with the triaxial direction (if fixed at a predetermined angle). A corresponding mounting angle error and an inclination angle of installation are allowable. However, the vertical direction and the horizontal direction can be corrected by detecting a deviation from gravity. Moreover, although mentioned later, the control part 44 can be applied as a level by detecting the shift | offset | difference of this gravity and the acceleration of a Z-axis direction.

  In the present embodiment, the user can operate the dishwasher by applying vibration to the door body 40 and the washing tub 33. As a method of applying this vibration, the door may be knocked with a controller so as to knock the door. Moreover, you may tap so that it may tap with a fingertip. You can also tap it with your hand. Further, when the hand is wet or has something, the hand may be pushed with an elbow or a knee. In short, it is sufficient that the vibration is applied so that the predetermined vibration is transmitted to the acceleration sensor 45, and there is no particular limitation. In many cases, the door body 40 is vibrated in a manner that generates sound. In the present embodiment, the description will be made assuming that the door body 40 is knocked to give vibration.

  A driving device 51 for moving the cleaning tank 33 at least in the forward or backward direction is provided. The control unit 44 is configured to drive the drive unit when a predetermined signal is received from a sensor such as the acceleration sensor 45 or the operation unit 46. The drive device 51 (details will be described later) includes a drive motor 52 as a drive unit. The sensor that outputs a signal for driving the drive motor 52 is not limited to the acceleration sensor 45, and may be any sensor that detects vibration applied to the door body 40 or the like. Moreover, the sensor which detects that the user touched the door body 40 grade | etc., Such as an electrostatic sensor may be sufficient.

  Illustrates one of the most basic controls. In the dishwasher, when the washing tub 33 is stored and the operation is stopped, the washing tub 33 is automatically pulled forward when the user taps the door 40 twice from the front. That is, the control unit 44 determines that the door body 40 has been hit by the user by detecting a predetermined signal output by detecting the vibration applied by the acceleration sensor 45 in the same front-rear direction as the pull-out operation. And the control part 44 is controlled to drive the drive motor 52, and moves moving parts, such as the door body 40 and the washing tank 33, to the front.

  In addition, a moving part contains the whole part which drives and moves with a drive part, and changes with the form of a dishwasher. For example, in Embodiment 1, the cleaning tank 33 is included in the moving unit, but the cleaning tank of Embodiment 2 is included in the housing and does not move, and is not included in the moving unit.

  An operation unit 46 is provided on the front side of the upper surface opening 35 of the cleaning tank 33. The operation unit 46 is located inside the decorative plate 42 and is concealed in the casing 31 when the cleaning tank 33 is stored in the casing 31. The operation unit 46 is provided with an operation button (not shown) and a display unit (not shown) such as an LED, and the user can set the control of each step of the cleaning operation with the operation button, and the set contents can be set. It is comprised so that it can display with LED.

  A tableware basket 47, a cleaning nozzle 48, and a heater 49 are provided inside the cleaning tank 33. A cleaning pump 50 is provided outside the cleaning tank 33. A cleaning nozzle 48 is rotatably provided below the tableware basket 47. The heater 49 is disposed at the bottom of the cleaning tank 33, and heats the cleaning water stored in the cleaning tank 33 in the washing process and the rinsing process. The heater 49 heats the air in the cleaning tank 33 in the drying process. The cleaning pump 50 circulates the cleaning water and jets the cleaning water from the cleaning nozzle 48 to the tableware 36.

  The cleaning tank 33 is configured so that it can be taken in and out by the driving device 51. In the first embodiment, a drive device 51 that is configured in a rack and pinion type and can be driven forward and backward will be described. In the second embodiment, a driving device constituted by a roller type will be described. The configuration of the driving device 51 is not limited to these methods, and a method of winding a belt with a pulley, a belt conveyor method, or the like may be used. The drive unit is not limited to the drive motor. Further, the driving direction may be only the front direction or only the rear direction.

  The drive device 51 includes a drive motor 52 that is a drive unit, a pinion gear 53 that is driven by the drive motor 52, and a rack gear 54 that meshes with the pinion gear 53. The rack gear 54 in which the gear teeth are formed in a straight line is fixed to the lower part on the outer side of the side surface of the cleaning tank 33. The rack gear 54 is configured to have a length that is at least longer than the stroke through which the cleaning tank 33 is drawn. The pinion gear 53 that meshes with the rack gear 54 is attached so as to be driven by the drive motor 52. The drive motor 52 includes a speed reduction mechanism (not shown), and is fixed inside the housing 31 at a position where the pinion gear 53 is near the front opening 32. In FIG. 1, the rack gear 54 is configured such that teeth are formed downward and meshed with the pinion gear 53, but is not limited thereto, and is configured by forming teeth upward or laterally. It may be formed and configured.

  With this configuration, the rotational motion of the drive motor 52 is converted into a linear motion, and the cleaning tank 33 can move until the upper surface opening 35 is substantially fully opened. The cleaning tank 33 is lowered forward as it moves in the pulling direction, but the vicinity of the pinion gear 53 provided at the front serves as a fulcrum, so that the rack gear 54 and the pinion gear 53 may be disengaged. Is low. For this reason, even if a configuration for preventing the meshing from being removed is provided, a simple configuration may be used. In order to prevent the meshing from being disengaged, the drive motor 52 including the pinion gear 53 tilts in accordance with the inclination of the cleaning tank 33, or the pinion gear 53 is pressed against the rack gear 54. A configuration is possible.

  The speed reduction mechanism provided in the drive motor has a gear ratio and the like so that the user can easily put in and out the washing tank 33 manually. It should be noted that a clutch mechanism (not shown) or a sliding mechanism (not shown) that reduces the load on the drive motor 52 when the user manually enters and removes the drive device 51 from the drive motor 52 to the rack including the speed reduction mechanism. ) May be provided. Thereby, the user can take in and out the washing tank 33 with a smaller force. Even if the washing tank 33 is pulled out and collides with an obstacle, the washing tank 33 is easily stopped and no great force is applied to the obstacle. Further, the drive motor 52 does not reach the lock, and no excessive current is generated. In addition, when the washing tank 33 is moved manually, the motor circuit of the drive motor 52 may be cut off as described later in order to reduce the resistance of the drive motor 52.

When the controller 44 moves the cleaning tank 33 in the pulling-out direction, the controller 44 controls the drive motor 52 so that the upper surface opening 35 is substantially fully opened. In the present embodiment, substantially fully open includes a state in which the cleaning tank 33 is most drawn out and the upper surface opening 35 is most released, and a state in which the upper surface opening 35 is released more than half. In short, the table 36 is pulled out to such an extent that it can be taken in and out. For this purpose, the control unit 44 controls the drive motor 52 with time. That is, the control unit 44 drives and stops the drive motor 52 for the set predetermined time T1.

  With this configuration, the user does not need labor to pull out the cleaning tank 33. The dishwasher can pull out the washing tub 33 by the drive device 51 to a position where the tableware 36 can be easily accommodated even when the operation unit 46 or the handle 43 is not provided on the door body 40 covering the front surface, and the usability is improved. . Moreover, it can adapt to the diversified design of the system kitchen K.

  The predetermined time T1 is set according to the control contents, and is adjusted according to the moving distance and moving speed of the cleaning tank 33, the magnitude of the torque of the drive motor 52 until reaching the moving speed, and the like. The user feels dissatisfied that the moving speed is slow if the set time until full opening is too long. However, the higher the moving speed, the lower the safety. From these things, in this Embodiment, the standard moving speed of the washing tank 33 is set to 150 mm / sec-250 mm / sec. Moreover, as a user's feeling, it is more preferable that the moving speed is set to 170 mm / second to 230 mm / second. Thereby, the user does not feel dissatisfied with the movement of the cleaning tank 33, and safety is maintained. The standard moving speed is a constant speed state excluding the shifting state before the start of movement and before stopping. In addition, when there is no constant speed, it is preferable to set the maximum speed.

Further, in the case of a person in front when the automatically moving cleaning tank 33 is pulled out, and when a person's hand or finger is caught when stored, the weight of the cleaning tank 33 is safe. It is effective to consider the kinetic energy due to the movement speed. Kinetic energy W is represented by W = (1/2) mv ^2. In the present embodiment, the kinetic energy W is set to be 0.5 J or less so that no trouble occurs even in these cases. This is defined as the maximum weight of the washing tank 33 in which the tableware 36 and the like are accommodated is 16 kg and the moving speed is 250 mm / second. In addition, when the maximum weight of moving objects, such as tableware 36, increases, it is preferable to reduce a moving speed so that the kinetic energy W may be 0.5 J or less. Thereby, even if the washing tank 33 hits a person while moving or a person's hand or finger may be pinched when stored, the impact is alleviated.

  In the present embodiment, specifically, the upper surface opening 35 is pulled out to 50% by driving for about 2 seconds including the acceleration period when the movement starts. And it sets so that the washing tank 33 may be most pulled out by the drive for about 3.5 second as predetermined time T1. As described above, when the drive motor 52 is configured to be driven by the set time, it can be stopped at an arbitrary position when the cleaning tank 33 is pulled out according to the set time. In other words, the set time is adjusted according to the actual usage of the user. As a result, even when the dishwasher cannot be fully drawn out, such as when the dishwasher is installed in a narrow place where there is an obstacle near the front of the dishwasher, the amount of drawer can be reduced by adjusting the set time. It can be set and installed.

  The control unit 44 may drive the drive motor 52 with a plurality of stages of voltages. For example, a voltage higher than the standard is applied during the acceleration period when the movement starts, and a voltage lower than the standard is applied immediately before stopping to drive the drive motor 52. As a result, the torque of the drive motor 52 increases at the beginning of movement, and the acceleration period can be shortened. In addition, when the movement stops, no shock is applied to the stored tableware 36, and noise and damage due to the tableware 36 touching each other are prevented. Further, it is possible to prevent the water stored in the cleaning tank 33 from splashing and splashing out of the cleaning tank 33 or getting the tableware 36 dried after cleaning wet. That is, it is preferable to drive so that the moving speed changes smoothly in a shorter time regardless of when the movement starts and when the movement stops. The multi-stage voltage includes a state where the voltage changes linearly or smoothly.

  When the cleaning tank 33 is moving, the control unit 44 is obstructed by an obstacle or the like, and is stopped halfway to a predetermined position. When the predetermined time T1 elapses, the drive motor 52 is driven. And stop energization. As a result, the drive motor 52 is locked for a short time, never locked, and an excessive load is not applied to the drive motor 52. Moreover, it is a short-time collision with respect to the obstacle or person with which the washing tank 33 collided, and the occurrence of a problem is prevented.

  In addition, the control unit 44 is in the middle of the cleaning tank 33 reaching a predetermined position, and some part of the moving unit including the door body 40 is in contact with something such as an obstacle or is subjected to some load. When it is assumed that the drive motor 52 has been driven, the drive of the drive motor 52 may be stopped immediately. As a method for assuming that the vehicle has touched an obstacle or a person, for example, the control unit 44 includes the vibration in the moving direction of the door body 40 during driving of the drive motor 52 by the acceleration sensor 45 in any direction. The driving is stopped when an acceleration or change in acceleration exceeding a predetermined threshold is detected. If it is this structure, not only when moving parts, such as the door body 40, contact an obstruction, but a user knocks the door body 40 intentionally, or a child carelessly contacts from a horizontal direction or an up-down direction. Even if it does, the control part 44 can stop a drive immediately. In addition, the occurrence of a problem with an obstacle or a person in contact with the moving unit is prevented.

  Further, as a method for detecting that a certain load has been applied, for example, the control unit 44 monitors the acceleration in all directions by the acceleration sensor 45 and the driven door body 40 is decelerated or stopped. When the change in acceleration is detected, the drive of the drive motor 52 is stopped. Alternatively, the control unit 44 monitors the current while the drive motor 52 is being driven, and detects an increase in the current when the door body 40 is decelerated or stopped, or the current greater than a predetermined value is, for example, 0. When the motor lock is detected after flowing for 5 seconds or more, the drive may be stopped. These methods are not particularly limited and can be implemented in combination. In any method, the time until the drive is stopped after being hindered is shortened, and the occurrence of a failure is prevented not only in the failure such as overheating of the drive motor 52 but also in an obstacle.

  As described above, the door body 40 can be stopped reliably by detecting acceleration or current, and the movement of the door body 40 can be stopped immediately even by the clutch mechanism or the sliding mechanism described above. These configurations are useful as a method for stopping the door body 40 when a predetermined load or more is applied to the door body 40 or the drive motor 52.

  Further, the control unit 44 may shut off the motor circuit when the cleaning tank 33 is stopped in the middle of reaching a predetermined position and the driving of the driving motor 52 is stopped. When the washing tank 33 stops halfway, the user tries to move it forward or backward manually from the position where the washing tank 33 is stopped. At this time, the drive motor 52 is forcibly idled to generate a counter electromotive force. However, if the circuit of the drive motor 52 is cut off, a load that causes an abnormal current to flow through the printed circuit board 44a of the control unit 44 due to the counter electromotive force is not applied. In addition, since no current flows, no power is generated, and the manual operation force does not increase. The control unit 44 detects a predetermined signal such as closing the door body 40, and then restores the motor circuit that is shut off when receiving a signal for driving the drive motor 52.

  About the dishwasher comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

The user pulls out the cleaning tank 33 in order to accommodate the tableware 36 in the cleaning tank 33. At this time, the handle 43 can be pulled out with a hand. However, it is possible to pull out the cleaning tank 33 by driving the drive motor 52 by knocking the door body 40 twice, for example. That is, vibration is generated when the door body 40 is hit. The vibration is the decorative board 4
2 to the operation panel 41 and to the control unit 44 fixed to the operation panel 41. And the acceleration sensor 45 detects the vibration transmitted to the printed circuit board 44a of the control part 44 as an acceleration.

  When the user knocks the door body 40 twice, the control unit 44 detects the direction and magnitude of acceleration from the output signal of the acceleration sensor 45. At this time, the control unit 44 determines the acceleration magnitude in each of the three axis directions (X axis, Y axis, Z axis), for example, the X axis acceleration X is greater than or equal to the first threshold A and the Y axis acceleration Y. , The drive motor 52 is driven only when the second threshold value B and the Z-axis acceleration Z are equal to or less than the third threshold value C. That is, the control unit 44 has at least the acceleration X less than the first threshold A, or even if the acceleration X is greater than or equal to the first threshold A, the acceleration Y is greater than or equal to the second threshold B or the acceleration Z is greater than the third threshold A. If it is equal to or greater than the threshold value C, it is determined that the vibration is not from the front. Accordingly, it is determined that the door body 40 has been knocked from the front by the user's intention. That is, a malfunction that is not based on the user's intention is prevented.

  In the present embodiment, when it is determined that an operation for pulling out the cleaning tank 33 is performed by the user, first, a buzzer is sounded after 0.4 seconds, and the door body 40 starts moving to the user. Notify you of what to do. Then, after 0.6 seconds from the determination, the drive motor 52 is driven in a predetermined direction. The drive motor 52 moves the rack gear 54 provided at the lower part of the cleaning tank 33 forward by a pinion gear 53 provided on the rotating shaft. Accordingly, the cleaning tank 33 moves forward from the front opening 32 of the housing 31 via the slide rail 34 and is pulled out.

  When the drive motor 52 is driven for about 4 seconds, the cleaning tank 33 is adjusted to be pulled out most. Thereby, the washing tank 33 comes out to a position where the upper surface opening 35 is substantially fully opened and stops. The user can easily store the tableware 36 in the tableware basket 47 from the upper surface opening 35 in this state. The user turns on a power switch (not shown) provided on the front side of the upper surface opening 35 and operates the operation unit 46 to set the cleaning operation. The control unit 44 is always energized regardless of the power switch, and is on standby so that a knock by the user can be detected.

  When the user completes the storage of the tableware 36 and the setting of the cleaning operation, the user knocks the door body 40 only once, for example. When the controller 44 detects a single knock while the cleaning tank 33 is pulled out, the controller 44 first notifies the user with a buzzer. And the control part 44 drives the drive motor 52, and moves the washing tank 33 back. Thereby, the washing tank 33 is accommodated in the housing | casing 31, and the door body 40 is closed. The control unit 44 performs time control until storage, storage position detection, acceleration detection when the cleaning tank 33 is stored and stopped, detection of a lock current of the drive motor 52, and the like in determination of storage completion in storage drive. Is possible. The controller 44 executes the set cleaning operation when the cleaning tank 33 is stored.

  In addition, as a storage method of the cleaning tank 33, the user can store the cleaning tank 33 in the housing 31 while manually pushing the front surface of the door body 40. In addition, a start switch (not shown) is provided, and when the user presses the start switch instead of knocking once after the setting is completed, the cleaning tank 33 is stored and the cleaning operation is started. May be. Further, the start switch is a signal for the completion of the operation setting by the user, and the cleaning operation is not started unless the start switch is pushed when the cleaning tank 33 is housed by the drive device 51 or manually. Good. Thereby, it becomes possible for a user to accommodate the tableware little by little in the washing tank 33.

When the predetermined cleaning operation is completed, the user pulls out the cleaning tank 33 in order to take out the tableware 36. At this time as well, when the door body 40 is knocked twice as in the case of storing the tableware 36, the cleaning tank 33 is pulled out to a predetermined position following the notification of the buzzer. After taking out the tableware 36, the user knocks the door body 40 once again. When the control unit 44 detects a single knock in a state where the cleaning tank 33 is pulled out and there is no operation setting by the operation unit 46 or a start switch is not pressed, the control unit 44 moves the drive motor 52 backward. And the cleaning tank 33 is stored, and the cleaning operation is not performed. Thus, a series of dishwashing operations including the user's operations are completed.

  In addition, when the dishwasher is performing the washing operation, there is a possibility that the user or the like may come into contact with the decorative plate 42 or the handle 43 of the door body 40 without intention. In such a case, it is inconvenient for the control unit 44 to detect and pull out the cleaning tank 33. Therefore, the control unit 44 may be configured not to be driven with the same knock twice as when the dishwasher is in operation. In this case, for example, when the knocking is detected three times, it is preferable that the operation is temporarily stopped and the washing tank 33 is pulled out so that the user's intentional operation is detected. . Thereby, the control unit 44 can prevent the user from performing unintended control, and can have a function like a so-called child lock, which improves safety.

  Thus, it is possible to assign control depending on the combination of the state of the cleaning tank 33 and knocking. The detection of the knock by the control unit 44 is effective not only for the number of times but also for detecting the strength in order to devise the type of combination. Further, it is preferable that the user can set the combination of detection of the acceleration sensor 45 and the control operation, the predetermined position for stopping the cleaning tank 33, and the like from the operation unit 46 and the like, and confirm it on the display unit. That is, at least the setting of the vibration that the user applies to the door body 40 so that the control unit 44 drives the drive motor 52 or the setting of the operation of the drive motor 52 can be set by the user through the operation unit 46. The set value may be confirmed by a display unit provided in the operation unit 46. As a result, the user can freely set the number of knocks and the like, and can confirm the setting, improving usability.

  As described above, the configuration in which the control unit 44 performs arbitrary control according to the combination of the state of the cleaning tank 33 and the number of knocks is exemplified as follows.

a) When the cleaning operation is stopped, the user knocks the door body 40 twice while the cleaning tank 33 is accommodated. At this time, the control unit 44 moves the cleaning tank 33 in the pulling-out direction. (Operation preparation)
b) When the cleaning operation is not set in the state where the cleaning tank 33 is pulled out, the user knocks the door body 40 once. At this time, the control unit 44 only stores the cleaning tank 33 and does not start the cleaning operation. (Operation preparation or operation end)
c) When the cleaning operation is set while the cleaning tank 33 is pulled out, the user knocks the door body 40 twice. At this time, the control unit 44 only stores the cleaning tank 33 and does not start the cleaning operation. (Operation preparation)
d) When the cleaning operation is set while the cleaning tank 33 is pulled out, the user knocks the door body 40 once. At this time, the control unit 44 stores the cleaning tank 33 and starts the cleaning operation set. (start operation)
e) During the cleaning operation, the user knocks the door body 3 three times while the cleaning tank 33 is accommodated. At this time, the control unit 44 temporarily stops the cleaning operation and moves the cleaning tank 33 in the direction in which it is pulled out. (Pause operation)
If the washing operation is not started just by storing the washing tub 33 as in b and c, the user can suspend the washing preparation while the tableware 36 is being accommodated and can leave the dishwasher. . As for b, if the user intends to start the cleaning operation d, the user can notice that the user has not set the cleaning operation yet.

  In the above control assignment, all operations may be handled with the same number of knocks by using a start switch or the like as necessary. In this case, usability is improved in that the user does not need to remember the number of knocks for each operation.

  Moreover, when the handle 43 is provided in the door body 40, the control part 44 may be comprised so that the drive of the drive motor 52 can be canceled as a setting when a user does not use the drive device 51. FIG. .

  In the dishwasher configured as described above, the following operations and effects can be obtained.

  An acceleration sensor 45 that detects at least vibration applied to the door body 40 is provided, and the control unit 44 is configured to drive the drive motor 52 for a set time to move the cleaning tank 33 in the forward direction. Yes. Thereby, even when the operation unit 46 or the handle 43 is not provided on the door body 40 covering the front surface of the dishwasher, the washing tub 33 can be pulled out to a predetermined position, and the dishwasher is adapted to diversified designs of the system kitchen K. be able to. In addition, the cleaning tank 33 is controlled to stop at an arbitrary position by adjusting the set time according to the actual usage of the user.

  The control unit 44 is configured to drive the drive motor 52 when receiving a signal from the acceleration sensor 45 that detects a predetermined vibration applied to the door body 40. Thereby, the vibration that the user knocks on the door body 40 is detected, and the cleaning tank 33 is moved forward by the driving motor 52 or moved backward according to the operation timing and the state of the cleaning tank 33. You can make it.

  The controller 44 is configured to drive the drive motor 52 to a position where the upper surface opening 35 of the cleaning tank 33 is substantially fully opened. Accordingly, the user can take in and out the tableware 36 without requiring manual labor to pull out the cleaning tank 33.

  The control unit 44 is configured to stop the drive motor 52 when receiving a signal from the acceleration sensor 45 that detects the acceleration generated by the stop of the cleaning tank 33. Thus, even when the door body 40 or the cleaning tank 33 collides with the obstacle and stops, it is possible to prevent the obstacle from occurring. Moreover, the control part 44 can stop the washing tank 33 in a predetermined position by providing the latching | locking part in the predetermined position of drawer | drawing-out.

  The control unit 44 is configured to shut off the motor circuit when the cleaning tank is stopped. As a result, even if the user manually moves the cleaning tank 33 and the drive motor 52 is idled to generate counter electromotive force, the counter electromotive force is cut off and the printed circuit board 44a of the control unit 44 is abnormal. No current flows. In addition, since an electric load due to the counter electromotive force of the drive motor does not occur when the opening / closing operation is manually performed, the opening / closing operation is not loaded, so that the user can easily perform the operation of putting in and out the cleaning tank 33 manually. it can.

  The drive device 51 includes a drive motor 52, a pinion gear 53 driven by the drive motor 52, and a rack gear 54 that meshes with the pinion gear 53, and the drive motor 52 is located near the front opening 32. Thus, the rack gear 54 is fixed to the outside of the cleaning tank 33 and is fixed to the inside of the housing 31. As a result, even if the cleaning tank 33 moves in the pull-out direction and falls forward, the vicinity of the pinion gear 53 provided at the front serves as a fulcrum, so that the rack gear 54 and the pinion gear 53 may be disengaged. However, the configuration for preventing the meshing from being disengaged may be a simple configuration.

As disclosed above, the control unit 44 controls the driving device 51 to move the cleaning tank 33 safely in accordance with the user's intention. For the user, the labor for manually moving the cleaning tank 33 is reduced, and the usability is improved. Moreover, all the operation parts 46 are concealed in the housing | casing 31, and can adapt to the design which the system kitchen K diversifies. The design of the system kitchen K is unified and the design is improved.

  Even if there is an obstacle in front of the cleaning tank 33 due to carelessness of the user, the control unit 44 detects the occurrence of vibration or a change in acceleration and stops driving the drive motor 52. To do. Thereby, a big malfunction does not generate | occur | produce in an obstruction and a dishwasher, but safety is maintained.

(Embodiment 2)
3 and 4 are side longitudinal sectional views of a dishwasher in which the washing tub according to Embodiment 2 of the present invention has a drawer. FIG. 3 shows a state where the cleaning tank is housed in the housing. FIG. 4 shows a state where the cleaning tank is pulled out from the inside of the housing to the fully open position. Note that the present embodiment is different from the first embodiment in the driving device. Other configurations are the same as those in the first embodiment, and the first embodiment is used.

  As shown in FIGS. 3 and 4, the cleaning tank 33 is configured so that it can be taken in and out by a roller pressure-contact type driving device 55. The drive device 55 includes a drive motor 56, a roller 57 driven by the drive motor 56, and a pressure contact rail 58 to which the roller 57 is pressed. The pressure-contact rail 58 is fixed to the lower portion outside the side surface of the cleaning tank 33. The pressure-contact rail 58 is configured to have a length that is at least longer than the stroke from which the cleaning tank 33 is drawn. The roller 57 pressed against the pressure contact rail 58 is attached so as to be driven by a drive motor 56. The drive motor 56 includes a speed reduction mechanism, and is fixed so that the roller 57 is positioned near the front opening 32 inside the housing 31. In FIG. 3, the roller 57 is pressed against the press contact rail 58 from the lower side, but is not limited thereto, and may be pressed from the upper side or may be pressed from the lateral direction. Further, the press contact rail 58 may be the side surface or the bottom surface of the cleaning tank 33 itself.

  With this configuration, the rotational motion of the drive motor 56 is converted into a linear motion, and the cleaning tank 33 can move until the upper surface opening 35 is substantially fully opened. And if it is comprised so that the drive motor 56 may be driven by setting time, when the washing tank 33 is pulled out according to the set time, it can be made to stop in arbitrary positions. Further, when the roller 57 and the pressure-contact rail 58 are combined, it is not necessary to worry about the meshing of the gear as in the rack and pinion type at the time of assembly, and the assembly becomes easy. The user does not need labor to pull out the cleaning tank 33. And the dishwasher can draw out the washing tank 33 with the drive device 55 to the position which can accommodate the tableware 36 easily, and a usability improves. Moreover, it can adapt to the diversified design of the system kitchen K.

(Embodiment 3)
FIG. 5 is a side longitudinal sectional view of the dishwasher according to Embodiment 3 of the present invention. In the present embodiment, the difference from the first embodiment is the operation part of the door body. Other configurations are the same as those in the first embodiment, and the first embodiment is used.

  As shown in FIG. 5, the door body 40 includes an operation unit 46 b on the top of the decorative plate 42. The operation unit 46b is provided with an operation switch (not shown) of a drive motor 52 that is a drive unit that moves at least the cleaning tank 33. This operation switch is provided so that it can be distinguished whether the operation switch is operated in the front-rear direction.

When the cleaning tank 33 is moved in the forward direction, the control unit 44 controls the drive motor 52 so that the upper surface opening 35 is substantially fully opened. In the present embodiment, substantially fully open includes a state in which the cleaning tank 33 is most drawn out and the upper surface opening 35 is most released, and a state in which the upper surface opening 35 is released more than half. In short, the table 36 is pulled out to such an extent that it can be taken in and out. For this purpose, the control unit 44 controls the drive motor 52 with time. That is, the control unit 44 drives and stops the drive motor 52 for the set predetermined time T1.

  With this configuration, the user does not need labor to pull out or store the cleaning tank 33. And the dishwasher can draw out the washing tank 33 with the drive device 51 to the position where the tableware 36 can be accommodated easily, and the usability is improved. Moreover, it can adapt to the diversified design of the system kitchen K.

(Embodiment 4)
FIG. 6 is a side longitudinal sectional view of another drawer-type dishwasher according to Embodiment 4 of the present invention. FIG. 7 is a front longitudinal sectional view of the dishwasher in the present embodiment. FIG. 8 is an enlarged view of a main part of the slide rail portion of FIG.

  In the present embodiment, the difference from the first embodiment is the configuration of the washing tub of the dishwasher and the configuration of the door body support mechanism. In the first embodiment, the cleaning tank is configured to be withdrawn / removed from the housing in a pull-out manner. However, in this embodiment, the cleaning tank is configured to be fixed inside the housing. Due to this difference, the support mechanism for supporting the door body includes the cleaning tank to which the door body is attached and the slide rail for moving the cleaning tank in the first embodiment. A support member to which is attached and a slide rail are included. Other configurations related to the present invention are the same as those in the first embodiment, and the first embodiment is used.

  As shown in FIG. 6 and FIG. 7, the housing 71 has a front opening 72 whose entire front surface is open. A cleaning tank 73 is formed inside the casing 71 provided with the front opening 72. A door body 74 that covers the front opening 72 is provided. In a cleaning space 75 formed by the cleaning tank 73 and the door body 74, a lower tableware basket 77 and an upper tableware basket 78 on which the tableware 76 is placed are provided so as to be movable back and forth. The tableware baskets 77 and 78 can move together with the door body 74 if they are locked to the door body 74, and can be moved individually if the lock is released.

  An operation unit 79 is provided on the upper surface of the door body 74, and the user can switch between power on / off, start, pause, cleaning, and drying course by pressing a button on the operation unit 79. Moreover, in order to move the door body 74, the switch which operates a control part (not shown) may be provided. The control unit is provided below the operation unit 79.

  The door body 74 is supported by the housing 71 in a state where the door body 74 can be moved back and forth by the support mechanism 80. The support mechanism 80 includes a support member 81 and a slide rail 82. The slide rails 82 are attached to the inner side surfaces on both the left and right sides of the housing 71 at the outer lower portion of the cleaning tank 73. As shown in FIG. 8, the slide rail 82 includes a fixed rail 82a, a first movable rail 82b slidably mounted on the fixed rail 82a, and a first slidably mounted on the first movable rail 82b. 2 movable rails 82c.

  The support member 81 formed of a metal plate has a front end portion 81 a fixed to the inner lower portion of the door body 74. The support member 81 is fixed on the second movable rail 82c. When the door body 74 moves forward, the support member 81 and the second movable rail 82c move forward together with the first movable rail 82b while supporting the door body 74 substantially vertically. As a result, the slide rail 82 extends.

  A driving device 83 that moves the door body 74 at least in the forward direction or the backward direction is provided. The control unit is configured to drive the drive unit when a predetermined signal is received from a sensor such as the acceleration sensor 45 or an operation switch. The drive device 83 has a drive motor 84 as a drive unit.

  In the present embodiment, a drive device 83 configured as a rack and pinion type will be described. The drive device 83 includes a drive motor 84 that is a drive unit, a pinion gear 85 that is driven by the drive motor 84, and a rack gear 86 that meshes with the pinion gear 85. A rack gear 86 in which gear teeth are formed in a straight line is fixed in the vicinity of the support member 81. The rack gear 86 is configured to have a length that is at least longer than the stroke that the door body 74 moves. A pinion gear 85 that meshes with the rack gear 86 is attached so as to be driven by a drive motor 84. The drive motor 84 includes a speed reduction mechanism (not shown), and is fixed inside the housing 71 at a position where the pinion gear 85 is near the front opening 72. With this configuration, the rotational motion of the drive motor 84 is converted into a linear motion, and the door body 74 is moved forward or backward. Other detailed control is the same as that of the first embodiment, and the description thereof is omitted.

(Other embodiments)
As mentioned above, although the structure of four embodiment was disclosed, the other embodiment is shown about various structures including a drive device.

  A method of stopping at a predetermined position when the cleaning tank 33 is pulled out is exemplified instead of the method in which the drive motor 52 disclosed in the first embodiment is controlled by time.

  1. As shown in FIG. 8, a position detection unit 59 that detects a predetermined position of the cleaning tank 33 is provided in the vicinity of the front opening 32, and the control unit 44 receives a signal from the position detection unit 59 generated during movement. The drive motor may be configured to stop driving. The position detection unit 59 may be a micro switch. It is not restricted to this, A photoelectric switch may be sufficient. Alternatively, the position may be detected by measuring the moving distance of the cleaning tank 33 using a photoelectric sensor or the like. The moving distance is detected even if the drive unit is configured by a stepping motor.

  2. As shown in FIG. 9, a locking portion 60 configured to stop the cleaning tank 33 at a predetermined position may be provided. The locking portion 60 includes, for example, a first protrusion 60 a provided in the vicinity of the front opening 32 of the housing 31, and a second protrusion 60 b provided at the rear portion of the slide rail 34 or the cleaning tank 33. However, the cleaning tank 33 is configured to collide at a predetermined position where it is pulled out. The control unit 44 may be configured to stop driving of the drive motors 52 and 56 by detecting a lock current of the drive motors 52 and 56 generated when the cleaning tank 33 is stopped by the locking unit 60. .

  3. As shown in FIG. 9, a locking portion 60 configured to stop the cleaning tank 33 at a predetermined position may be provided. The locking portion 60 includes, for example, a first protrusion 60 a provided in the vicinity of the front opening 32 of the housing 31, and a second protrusion 60 b provided at the rear portion of the slide rail 34 or the cleaning tank 33. However, the cleaning tank 33 is configured to collide at a predetermined position where it is pulled out. The control unit 44 may be configured to stop the drive motors 52 and 56 when receiving a signal from the acceleration sensor 45 that detects an acceleration generated when the cleaning tank 33 is stopped by the locking unit 60.

According to these configurations, unlike the set time shown in the first embodiment, it is not necessary to determine the relationship between the set time and the withdrawal amount, and the stop position is physically set. At this time, if the position detection unit 59 or the first projection 60a slides back and forth and can be fixed at an arbitrary position, the cleaning tank 33 surely stops at an arbitrary predetermined position. In addition, 2. The lock current generated in is short, and an excessive load is not applied to the drive motors 52 and 56. In addition, 2. And 3. It is preferable that the latching | locking part 60 shown by has cushioning properties. As a result, the shock is not transmitted to the tableware 36 stored with the washing tank 33 smoothly stopped, and the noise that the tableware 36 contacts and the tableware 36 are prevented from being damaged. Further, it is possible to prevent the water stored in the cleaning tank 33 from splashing and splashing out of the cleaning tank 33 or getting the tableware 36 dried after cleaning wet.

  In the drive devices 51 and 55, the drive motors 52 and 56 may be fixed to the rear portion of the cleaning tank 33, and the rack gear 54 and the pressure contact rail 58 may be fixed to the inside of the housing 31. When a drive device is provided in furniture or a refrigerator drawer, the power source of the drive unit is conveniently provided on the housing side, and is common. However, the dishwasher with the drawer having the washing tank 33 requires a power source such as the heater 49 and the washing pump 50 in the washing tank 33, and the power line is originally provided. For this reason, according to this configuration, since the signal lines and the power supply lines from the control unit 44 to the drive motors 52 and 56 are arranged only on the side surface of the cleaning tank 33 without being routed to the housing 31 side, Assembling becomes easy and workability of maintenance is improved.

  In the drive device 51, the rack gear 54 may be configured such that teeth are formed both vertically and sandwiched between the two pinion gears 53. In addition, the rack gear 54 may be configured such that teeth are formed in any one of the vertical directions, and a roller is provided on the side where the teeth are not formed and is sandwiched between the upper and lower sides. According to these configurations, the rack gear 54 and the pinion gear 53 are reliably engaged with each other and cannot be easily detached.

  When the cleaning tank 33 stopped halfway due to an obstacle is continuously moved, the user may move the cleaning tank 33 by the driving devices 51 and 55 instead of moving it manually. At this time, it is necessary to distinguish whether it is pulled out from the stop position or stored. As this method, the acceleration sensor 45 may detect the difference by the number of times the user strikes the decorative plate 42. Further, a switch that clearly indicates the moving direction may be provided in the operation unit 46 so that the user can operate it. According to this structure, the drive devices 51 and 55 are utilized, and the effort which a user moves manually is reduced.

  Furthermore, control of the drive devices 51 and 55 is illustrated.

  The control unit 44 may start driving after a predetermined time T2 (for example, 0.4 second to 1 second) after detecting a signal for driving the driving motors 52 and 56 by the user. With this configuration, when the cleaning water is jetted from the cleaning nozzle in the cleaning process, it is possible to wait for the cleaning pump to stop and prevent the cleaning water from jumping out of the cleaning tank. Further, when the driving signal is continuously detected and the driving is repeated, it is possible to ensure a temporary stop of the driving motors 52 and 56 so that a large starting current does not continue, and an excessive temperature of the driving motors 52 and 56 The rise can be prevented.

  Moreover, if it is notified that the door body 40 is driven and moves, safety is improved. In particular, it is preferable to start the notification before the door body 40 starts moving during the predetermined time T2. If it is notified that the door body 40 is moved before being driven, safety can be further improved.

A door closing detection sensor (not shown, but can be substituted by the position detection unit 59 shown in FIG. 6 for example) that detects that the door body 40 has been closed is provided, and the control unit 44 is a door by the door closing detection sensor. The signal from the acceleration sensor 45 is not detected for a predetermined time T3 (for example, 0.5 seconds) after detecting the signal that the body 40 is closed, or the drive is suspended even if the signal is detected.
You may do it. The entire casing including tableware vibrates due to a shock when the door body 40 is closed. With this configuration, it is possible to prevent erroneous detection of vibration when closed. Further, the temporary stop of the drive motors 52 and 56 can be secured, and an excessive temperature rise of the drive motors 52 and 56 can be prevented.

  In addition, as described above, when a signal indicating that the door body 40 is closed by the door close detection sensor is detected, the user may be notified that the door body 40 has been securely closed. Further, the user may be notified after a predetermined time T3 when the closed signal is detected to notify the user that the knock for pulling out the door body 40 can be received. With this configuration, the user can confirm that the door body 40 is reliably closed and the subsequent cleaning operation is normally performed.

  When the control unit 44 drives the drive motors 52 and 56 in the backward direction in which the door body 40 is closed and detects that the drive motors 52 and 56 are stopped, the signal of the door close detection sensor is not detected. The occurrence of abnormality may be notified. This can inform the user that the door body 40 is not completely closed.

  Furthermore, even if the user performs an operation to close, when this notification is repeated a predetermined number of times (for example, five times), it is notified that an abnormality has occurred, and further driving may be stopped. With this configuration, the lock current of the drive motors 52 and 56 can be prevented from being repeated, and an excessive temperature rise of the drive motors 52 and 56 can be prevented. Further, it is possible to notify the user that it is necessary to determine the occurrence of an abnormality such as whether the door body 40 is not closed by an obstacle or the like, or whether the drive motors 52 and 56 or the door close detection sensor has failed. And it can prevent that the washing | cleaning driving | running is performed without the door body 40 being closed.

  The controller 44 detects a signal indicating that the door body 40 is closed by the door close detection sensor, and drives the drive motors 52 and 56 in the forward direction in which the door body 40 is opened. .5 seconds), when the signal of the door close detection sensor remains detected, the occurrence of an abnormality may be notified. With this configuration, it is possible to determine that the door body 40 is not moving and notify the user of the abnormality of the door body 40.

  Further, when the user knocks, the door body 40 does not open, and when this notification is repeated a predetermined number of times (for example, five times), it is notified that an abnormality has occurred and further driving may be stopped. . With this configuration, the lock current of the drive motors 52 and 56 can be prevented from being repeated, and an excessive temperature rise of the drive motors 52 and 56 can be prevented. Further, it is possible to notify the user that it is necessary to determine the occurrence of an abnormality such as whether the door body 40 does not move due to an obstacle or the like, or whether the drive motors 52 and 56 or the door closing detection sensor has failed.

  Next, the acceleration sensor 45 is exemplified as applied to other controls.

  The acceleration sensor 45 may be configured to detect a tilt in the installation of the dishwasher. Dishwashers use water, so tilting them can cause problems such as water leaks. Therefore, it is necessary to confirm that the installation is in a horizontal state. That is, the control unit 44 can be applied as a level by detecting a deviation between gravity and acceleration in the Z-axis direction. Since the control unit 44 can detect the tilt of the dishwasher with the acceleration sensor 45, a level is not required, and the installation workability is improved. In addition, when the installation surface is inclined due to secular change in the place where the dishwasher is installed, the control unit 44 can detect it and notify the user or stop the operation. Thereby, the dishwasher is used while the inclination is corrected, and does not cause a problem due to the inclination over a long period of use.

  Further, the control unit 44 may change the moving speed of the door body 40 by controlling the drive motors 52 and 56 from the installation inclination state detected by the acceleration sensor 45. Specifically, when the vehicle is tilted forward or backward by less than a predetermined value, the moving speed is made slower than usual. When the installed inclination is large, there is a risk of water leakage, and the driving device 51 may be loaded more than expected. With this configuration, when installed with an inclination that does not hinder the cleaning operation, the moving speed of the door body 40 can be reduced to improve safety.

  Further, the control unit 44 may perform control so that the driving cannot be performed when the inclination detected by the acceleration sensor 45 is equal to or greater than a predetermined value. With this configuration, it is possible to improve safety by restricting the operation before the problem that water leakage or a load more than expected is applied to the drive device occurs.

  The acceleration sensor 45 may detect vibration in which the cleaning water collides with the inner wall of the cleaning tank 33 during the cleaning operation. Accordingly, the control unit 44 determines whether the cleaning pump 50 is operating normally, whether the cleaning nozzle 48 is rotating normally, or a plurality of cleaning nozzles, based on the direction and magnitude of acceleration due to vibration detected by the acceleration sensor 45. It can be determined from which of 48 the spray is being made, how much the tableware 36 is accommodated, and the like.

  When the control unit 44 outputs a signal for driving the drive motors 52 and 56, and there is no predetermined output from the acceleration sensor 45, the control unit 44 determines that the drive motors 52 and 56 or the acceleration sensor 45 or the like is faulty. You may notify. Thereby, the control part 44 can notify a user of abnormality of a drive device system | strain.

  The control unit 44 may pull out the cleaning tank 33 when the abnormality of the acceleration sensor 45 is detected. Thereby, the malfunction which cannot detect the knock and the washing tank 33 is not pulled out is avoided, and the control unit 44 can notify the user of the abnormality of the acceleration sensor 45.

  A notification unit that notifies when the driving device 51 operates or notifies the occurrence of abnormality is provided in the operation unit 46. Specifically, the notification unit may audibly notify with a synthesized sound such as a voice or a buzzer, and can be easily noticed if the user is nearby.

  In the case of notification by sound, the control unit 44 may start notification after a predetermined time T5 after detecting vibration due to knocking or the like. The predetermined time T5 is preferably 0.1 seconds to 0.6 seconds. This is because if it is less than 0.1 seconds, the user is conscious of knocking, and if a sound such as knocking occurs, the sound and the first part of the notification sound This is because it is difficult to hear. Further, if the time exceeds 0.6 seconds, it gives the user an impression of being extended. Therefore, if the notification sound is started after a predetermined time T5 after detecting vibration due to knocking or the like, the user can easily hear the notification sound without being disturbed by the sound knocked by himself.

  The notification unit may be an error code display, a blinking lamp such as an LED, or a combination of lighting of a plurality of lamps. Furthermore, the configuration is not limited to the acceleration sensor 45, and the cleaning tank 33 may be automatically pulled out when an abnormality occurs. As a result, the user can visually notice the occurrence of the abnormality. In particular, in the configuration in which the operation unit 46 is concealed in the housing 31, it is preferable that the cleaning tank 33 is pulled out, and the user can easily check the error code or LED display displayed on the operation unit 46. Can do. At this time, the cleaning tank 33 may be pulled out to such an extent that the operation unit 46 can be visually recognized.

The dishwasher may include a remote control (not shown) that transmits an operation signal. The control unit 44 receives various operation signals from the remote controller and performs control according to the operation signals. The controller 44 also detects a predetermined signal from the remote controller for pulling out or storing the cleaning tank 33 and drives the drive motors 52 and 56 to move the cleaning tank 33. Thereby, the user can operate the dishwasher from a location away from the dishwasher.

  The configurations that can be combined with each of the embodiments disclosed above can be combined without any particular limitation.

  As described above, the dishwasher according to the present invention can easily draw out and operate the washing tub even if a decorative panel without an operation unit or a handle is attached to improve the design. It is used as a dishwasher that is built-in and has a uniform design.

31 Housing 32 Front opening 33 Cleaning tank (support mechanism)
34 Slide rail (support mechanism)
35 Upper surface opening portion 36 Tableware 37 Inner lid 38 Parallel link mechanism 39 Seal portion 40 Door body 41 Operation panel 42 Decorative plate 43 Handle 44 Control unit 45 Acceleration sensor (sensor)
46 Operation unit 47 Tableware basket 48 Washing nozzle 49 Heater 50 Washing pump 51 Drive device 52 Drive motor (drive unit), (drive device)
53 Pinion gear (drive device)
54 Rack gear (drive device)
55 Drive device 56 Drive motor (drive unit), (drive device)
57 Roller (drive device)
58 Pressure welding rail (drive device)
59 Position Detection Unit 60 Locking Unit 60a First Projection Unit 60b Second Projection Unit 71 Case 72 Front Opening Portion 74 Door Body 76 Tableware 77 Lower Tableware Basket 78 Upper Tableware Basket 79 Operation Unit 80 Support Mechanism 81 Support Member ( Support mechanism)
82 Slide rail (support mechanism)
83 Drive device 84 Drive motor (drive unit), (drive device)
85 Pinion gear (drive device)
86 Rack gear (drive device)

Claims (7)

A housing having a front opening on the front surface;
A tableware basket that can be put in and out of the housing and contains tableware,
A door covering the front opening;
A support mechanism that supports the housing in a state in which the door body is movable back and forth,
A drive device for moving the door body at least in the forward or backward direction; and
A sensor for detecting at least vibration applied to the door body;
A control unit,
The drive device has a drive unit,
The control unit is a dishwasher configured to drive the driving unit when receiving a predetermined signal from the sensor,
The controller is a dishwasher configured to start driving after a predetermined time T2 after detecting a signal from the sensor when driving the driving unit. A door closing detection sensor for detecting that the door body is closed;
When the control unit detects a signal that the door body is closed by the door close detection sensor, the control unit detects vibration from the sensor that detects vibration for a predetermined time T3 after detecting the signal of the door close detection sensor. 2. The dishwasher according to claim 1, wherein the dishwasher is configured not to detect a signal or to suspend driving of the driving unit even if a signal of the sensor is detected. An informing unit is provided to inform the user of the operation status,
The control unit detects the signal indicating that the door body is closed by the door close detection sensor, and drives the drive unit in a forward direction in which the door body is opened for a predetermined time T4. The dishwasher of Claim 2 comprised so that it might alert | report that the said door body is not moving, when the signal of a close detection sensor is still detected. The dishwasher according to claim 3, wherein the control unit is configured to notify the occurrence of an abnormality when the notification that the door body is not moved is repeated a predetermined number of times and to stop further driving. The control unit drives the drive unit in a backward direction in which the door body is closed, and detects that the drive unit has stopped, but does not detect a signal of the door close detection sensor, the door The dishwasher according to any one of claims 2 to 4, wherein the dishwasher is configured to notify that the body is not completely closed. 6. The dishwasher according to claim 5, wherein the control unit is configured to notify the occurrence of an abnormality when the notification that the door body is not completely closed is repeated a predetermined number of times, and to stop further driving. Machine. An operation unit and a display unit are provided,
At least the setting of the vibration that the user applies to the door body in order for the control unit to drive the driving unit or the setting of the operation of the driving unit can be set by the user through the operation unit, and the setting The dishwasher of any one of Claims 1-6 comprised so that a value could be confirmed with the said display part.