JP2005211413A - Dish washer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dish washer capable of simply closing doors without applying a large force to the doors. <P>SOLUTION: The dish washer 1 is provided with a washer main body 3 with a washing tank 2, an opening part for putting in/taking out dishes into the tank 2, the doors 4 and 5 for opening/closing the opening part and an automatically opening/closing mechanism 9 for making the doors 4 and 5 open and close. When a user press-operates a push-button 10, a control circuit drives the mechanism 9 to open the doors 4 and 5. When the user slightly lifts up the door 4 left open, the circuit drives the mechanism 9 to close the doors 4 and 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a dishwasher for washing dishes by spraying washing water onto the dishes.

  The dishwasher has a washing tub provided inside the washing machine main body, an opening for taking in and out of the tableware, and a door provided in the washing machine main body for opening and closing the opening. When the opening is provided in the front surface of the cleaning tank, the door is divided into one door and a top and bottom of the opening that are rotatably supported by the lower and upper portions of the opening. It consists of a door.

  In the dishwasher configured as described above, the dishes are washed by spraying the dishes stored in the washing tank while circulating the washing water stored in the washing tank, with the opening closed by a door. Is done. The washing water sprayed on the tableware is ejected vigorously from, for example, an ejection nozzle at the tip of a rotating arm provided at the bottom or side of the washing tank. Therefore, the cleaning water sprayed from the spray nozzle is strongly sprayed not only on the tableware but also on the inner surface of the cleaning tank.

Therefore, in the dishwasher, the cleaning water is prevented from leaking from the gap between the opening and the door by configuring the door to be in close contact with the main body of the washing machine when the opening is closed by the door.
JP2003-174992A

However, since the door is heavier than a reinforcing member such as metal, it has been necessary to apply a relatively large force to open and close the door. In particular, since it is necessary to bring the door into close contact with the main body of the washing machine when the door is closed, it is necessary to continue to apply a large force until the door closing operation is completed, which is inconvenient for users with weak power such as elderly people.
This invention is made | formed in view of the said situation, The objective is to provide the dishwasher which can close a door easily, without applying big force.

The tableware washing machine of the present invention includes a washing machine main body, a washing tank provided in the washing machine main body for storing tableware, an opening provided in the washing tank for taking in and out the tableware, and opening and closing the opening. And a door closing mechanism for closing the door, and a control means for driving the door closing mechanism based on an operation for closing the door.
According to the above configuration, when the user attempts to close the door, the control means drives the door closing mechanism, and as a result, the door is automatically closed. In this case, examples of the operation for closing the door include an operation of operating a door closing switch, an operation of touching the door, and an operation of slightly closing the door.

  According to the present invention, the door can be easily and reliably closed without applying a large force by the user. In addition, since the door is closed by the door closing mechanism, the close contact state between the door and the peripheral portion of the opening that can be placed at the time of closing can always be the same, so that water leaks from the gap between the opening and the door during the cleaning operation. Can be prevented.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG.1 and FIG.2 has shown the structure of the dishwasher 1 which concerns on a present Example. As shown in these drawings, the dishwasher 1 includes a washing machine body 3 having a washing tank 2 therein, a lower door provided on the front surface of the washing machine body 3 for opening and closing a front opening of the washing tank 2. 4, an upper door 5, and an operation panel 6 provided at the lower part of the lower door 4. An operation switch 7 and a display device 8 are provided on the operation panel 6. The operation switch 7 includes a start switch that also serves as a temporary stop switch, a course setting switch for setting various driving courses, and the like. The display device 8 displays an operation status and the like.

The doors 4 and 5 are configured to be opened and closed by an automatic opening / closing mechanism 9 (see FIGS. 3 and 4) described later. A push button 10 for opening the doors 2 and 3 is provided on the front surface of the lower door 2. The upper door 5 is provided with an exhaust port 11 for discharging water vapor in the cleaning tank 2.
An injection nozzle 12 is fixed in the inner part of the cleaning tank 2, and two injection nozzles 13 are rotatably provided side by side on the lower side. A water reservoir (not shown) is integrally provided at the left front portion of the bottom of the cleaning tank 2, and a removable residue filter 14 is disposed thereon. In addition, a sheathed heater 15 (shown only in FIG. 5) is disposed on the right front portion of the bottom of the cleaning tank 2, and a protective cover 16 made of a perforated plate is covered on the top.

  On the other hand, although not shown, a pump and a blower that also serve as a cleaning pump and a drainage pump are disposed in the lower part of the cleaning tank 2 in the cleaning machine main body 3. The pump has a discharge outlet and a suction opening for cleaning, and a discharge outlet and a suction opening for drainage (both not shown). A discharge port for cleaning the pump is connected to the injection nozzles 12 and 13 via a water pipe, and a drain hose is connected to the discharge port for drainage. The suction inlet for cleaning and the inlet for drainage of the pump are connected to the lower end of the water reservoir.

  The pump includes a cleaning impeller, a drain impeller (not shown), and a pump motor 17 (shown only in FIG. 5) that rotationally drives the impeller. The pump motor 17 is configured to be rotatable in both forward and reverse directions, and can be switched between a state functioning as a washing pump and a state functioning as a drainage pump by switching the rotational direction of the pump motor 17. . When the pump functions as a drainage pump, the wash water in the reservoir is sucked into the pump from the drainage inlet and then discharged to the outside from the drainage outlet through the drainage hose. On the other hand, when the pump functions as a cleaning pump, the cleaning water in the water reservoir is sucked into the pump from the cleaning suction port and then sprayed into the cleaning tank 2 from the spray nozzles 12 and 13.

The blower is disposed in the vicinity of the heater 15 in the lower part of the cleaning tank 2 and is connected to the vicinity of the heater 15 in the cleaning tank 2 through a blower pipe.
In addition, a water supply port 18 is provided at the rear center of the bottom of the cleaning tank 2. The water supply port 18 is connected to a water supply source (not shown) such as water supply via a water supply valve 19 (shown only in FIG. 5) and a water supply hose.

In this embodiment, the sheathing heater 15 constitutes a heating means. The pump and the pump motor 17 constitute cleaning means. A water supply means is comprised from the water supply port 18, the water supply valve 19, water supply piping, etc. FIG.
Next, the automatic opening / closing mechanism 9 for the lower door 4 and the upper door 5 will be described with reference to FIGS. The automatic opening / closing mechanism 9 corresponds to the door closing mechanism of the present invention. 3 and 4 are right side views of the cleaning machine main body 3 with the right side plate removed. FIG. 3 shows the doors 4 and 5 in the closed state, and FIG. 4 shows the doors 4 and 5 in the open state. It shows a certain time. 3 and 4 show only the member disposed on the right side of the cleaning device main body 3 in the automatic opening / closing mechanism 9, but most of the members constituting the automatic opening / closing mechanism 9 are the main body of the cleaning machine. 3 are provided approximately symmetrically on the left and right sides. Therefore, here, the members arranged symmetrically on the left and right sides in the cleaning machine main body 3 are assigned the same reference numerals and will be described together.

  As shown in FIGS. 3 and 4, guide grooves 21 are respectively provided on the left and right portions of the upper portion of the cleaning machine body 3. Further, a substantially C-shaped guide groove 22 is provided in the front upper part of the outer surface of the right and left side portions of the cleaning tank 2. Support pieces 23 are respectively provided on the left and right portions of the upper end portion of the upper door 5, and each support piece 23 is provided with a guide pin 24 that protrudes inward. The guide pin 24 is slidably inserted into the guide groove 21.

  Moreover, the arm 25 is each provided in the lower part of the left and right of the rear surface part of the upper door 5. FIG. A shaft 26 is fixed to the tip of the arm 25. The shaft 26 passes through the arm 25, and a guide pin 27 having a diameter larger than that of the shaft 26 is provided at an end of the shaft 26 that protrudes inward from the arm 25. The guide pin 27 is inserted into the guide groove 22 and is slid along the guide groove 22.

  Arms 28 extending downward and rearward are respectively fixed to the left and right portions of the lower end portion of the lower door 4. A shaft 29 is provided at a portion of the arm 28 positioned below the lower door 4, and a long hole 30 is provided at the tip of the arm 28. A support plate 31 is fixed to lower portions of the left and right side surfaces of the cleaning tank 2, and a shaft 29 is rotatably supported by the support plate 31.

  In addition, engaging claws 32 project from left and right upper portions of the rear surface of the lower door 4. In contrast, locking hooks 33 are provided on the left and right sides of the cleaning tank 2. When the lower door 4 is closed, the engaging claws 32 enter the left and right wall portions through the openings 34 (see FIG. 2) provided on the front surfaces of the left and right wall portions of the cleaning machine body 3, and the locking hooks 33. Engage with. Thereby, the closed state of the lower door 4 is locked. Accordingly, the engaging claw 32 and the locking hook 33 constitute a locking means. The hook 33 is moved downward by a solenoid 35 (see FIG. 5) when the push button 10 is pressed, so that the engagement claw 32 is disengaged. Therefore, the solenoid 35 corresponds to a release means.

  A support plate 36 is fixed to the lower part of the left and right side portions of the cleaning tank 2. The support plate 36 extends below the cleaning tank 2, and a door opening / closing motor 37 is disposed at the lower part of the cleaning tank 2 and on the left side of the rear portion of the right support plate 36. A sprocket 38 is fixed to the right part of the rotating shaft 37 a of the motor 37. A sprocket 39 is rotatably provided on the left surface of the right support plate 36 above the rear of the motor 30. A chain 40 is stretched between the sprockets 38 and 39.

  The sprocket 39 rotates about a connecting rod 41 as a connecting member. The connecting rod 41 is spanned between the left and right support plates 36, and drive pulleys 42 are provided at both ends of the connecting rod 41 protruding outward from the left and right support plates 36, respectively. . With the above configuration, the driving force of the motor 37 is transmitted to the sprocket 39 via the sprocket 38 and the chain 40, and the left and right driving pulleys 42 are rotated in synchronization with the sprocket 33. The motor 37 is configured to be rotatable in both forward and reverse directions, and the drive pulley 42 rotates in the direction of arrow A or the direction of the opposite arrow A by switching the rotation direction of the motor 37.

In addition, driven pulleys 43 are rotatably supported on the front lower portion of the outer surface of the support plate 36, respectively. Further, one end of a tension coil spring 44 is fixed to the lower part of the center part in the front-rear direction of the outer surface of the support plate 36. The other end of the tension coil spring 44 is fixed to the tip of the arm 28 of the lower door 4.
Reinforcing plates 45 are respectively fixed to the upper portions of the outer surfaces of the left and right side plates of the cleaning tank 2. Driven pulleys 46 to 49 are rotatably supported on the rear part, the central part, the lower front part, and the lower central part of the reinforcing plate 45, respectively. A wire 50 is wound around the driving pulley 42, the driven pulley 49, the driven pulley 46, the driven pulley 47, the driven pulley 48, and the driven pulley 43 in the order described above. The driven pulley 47 is provided mainly for applying tension to the wire 50. The wire 50 is wound around the drive pulley 42 with the ends of both ends fixed to the drive pulley 42. When the drive pulley 42 rotates in the direction of arrow A, one end of the wire 50 is further wound around the drive pulley 42 and the other end is pulled out from the drive pulley 42. On the other hand, when the driving pulley 42 rotates in the direction of the opposite arrow A, the other end portion of the wire 50 is further wound around the driving pulley 42 and one end portion is pulled out from the driving pulley 42. Thus, the both ends of the wire 50 are fixed to the drive pulley 42 and wound, so that the slippage of the wire 50 is suppressed.

  A portion of the wire 50 that is stretched between the driven pulleys 46 and 49 is supported by a guide 51. A guide pin 57 is fixed to a portion of the wire 50 supported by the guide 51. The guide pin 57 is arranged in the guide 51 and is configured to slide in the guide 52. Further, a link 53 is swingably provided between the driven pulleys 47 and 49 and the driven pulley 46 in the reinforcing plate 45. The link 53 swings around a swing shaft 53 a on the top of the driven pulley 47.

  Long holes 54 and 55 are formed at both front and rear ends of the link 53, respectively. The pin 57 is loosely inserted in the long hole 55 (right long hole in FIG. 3) in the rear portion of the link 53, and the shaft 26 is prevented from falling in the long hole 54 in the front portion. It has been inserted loosely. One end of a tension coil spring 56 is fixed to the rear end of the link 53. The other end of the coil spring 56 is fixed to the rear lower part of the reinforcing plate 45.

A pin 57 is fixed to a portion of the wire 50 that is stretched between the driven pulleys 43 and 48. The pin 57 is loosely inserted in a state in which the pin 57 is prevented from coming off in a long hole 30 provided in the arm 28 of the lower door 4.
In this embodiment, the driving pulley 42, the driven pulleys 43 and 46 to 49, the wire 50, the link 53, the guide pin 52, and the pin 57 provided on the left and right sides of the cleaning machine body 3 serve as the first and second transmission mechanisms. Constitute.

  FIG. 5 shows a schematic electrical configuration of the dishwasher 1 as a block diagram. In FIG. 5, a microcomputer (hereinafter referred to as a microcomputer) 60 as a control means includes a push button 10, an operation switch 7 of the operation panel 6, a micro switch 61 that responds to the opening / closing operation of the lower door 4, and the cleaning tank 2. Output signals of a water temperature sensor 62 for detecting the temperature of the cleaning water in the inside and a water level sensor 63 for detecting the water level in the cleaning tank 2 are given. The micro switch 61 is attached to, for example, a hinge part at the lower part of the lower door 4 and outputs an ON signal by slightly lifting the lower door 4 in an open state. The water level sensor 63 is provided, for example, in a water tank (not shown) provided adjacent to the cleaning tank 2, and indirectly detects the water level in the cleaning tank 2 by detecting the water level in the water tank. Is configured to detect automatically.

  The pump 60 is connected to the microcomputer 60 via an inverter circuit 64, and the door opening / closing motor 37 is connected via an inverter circuit 65. Further, a notification device 68, a display device 8, a solenoid 35, a water supply valve 19, a sheathed heater 15, and a fan motor 69 of a blower are connected to the microcomputer 60 through a drive circuit 67. The notification device 68 notifies the end of the cleaning operation or the occurrence of an error by sounding a buzzer. The microcomputer 60 drives the door opening / closing motor 37 and the solenoid 35 based on the ON signal from the micro switch 61. Therefore, in this embodiment, the microswitch 61 and the microcomputer 60 constitute a control means. In FIG. 5, the two solenoids 35 are shown together.

  Next, the operation of the above configuration will be described with reference to FIGS. First, the operation when the doors 4 and 5 in the closed state are opened will be described. As shown in FIG. 3, the doors 4 and 5 in the closed state are all in close contact with the front surfaces of the left and right wall portions of the cleaning machine body 3, and the cleaning tank 2 is closed in a watertight manner. At this time, the pin 57 fixed to the wire 50 is close to the driven pulley 43, and the tip of the arm 28 of the lower door 4 is also close to the driven pulley 43. At this time, the tension coil spring 44 is hardly expanded.

  On the other hand, the guide pin 24 of the support piece 23 of the upper door 5 is located at the front end of the guide groove 21, and the slide pin 23 fixed to the tip of the arm 25 is located below the guide groove 22. Further, the pin 57 fixed to the wire 50 is close to the driven pulley 46. As a result, the link 53 is stopped in a state where the front end portion is located below and the rear end portion is located above. . At this time, the tension coil spring 56 is in the most extended state.

When the push button 10 is pressed in such a state, the microcomputer 60 drives the solenoid 35 to move the locking hook 33 downward and rotationally drive the motor 37 in one direction. As a result, the engagement claw 32 is disengaged from the locking hook 33 and the doors 4 and 5 are unlocked.
Further, the drive pulley 42 rotates in the arrow A direction, and the wire 50 moves in the arrow B direction. As a result, the pin 57 moves upward toward the driven pulley 48. Along with this, the arm 28 rotates upward about the shaft 29 and the lower door 4 rotates downward, so that the lower door 4 is opened.

On the other hand, the movement of the wire 50 in the direction of arrow B causes the pin 57 to move downward toward the driven pulley 49, whereby the link 53 rotates about the shaft 53a in the direction of arrow C. As a result, the arm 25 of the upper door 5 moves upward along the guide groove 22 and the support piece 23 moves rearward along the guide groove 21 so that the upper door 5 is opened.
The arm 28 is rotated by a predetermined angle (specifically, an angle when the arm 28 and the coil spring 44 are arranged substantially in a straight line) from the position shown in FIG. 3 by the action of the tension coil spring 44. Rotates against the urging force of the coil spring 44. Therefore, it is possible to prevent the lower door 4 from being pivoted downward by virtue of its own weight. Further, the rotation of the link 53 in the direction of arrow D is urged by the tension coil spring 56. Therefore, the opening operation of the upper door 5 that must be lifted against the gravity of the upper door 5 can be performed with a relatively small force. And since it comprised so that the lower door 4 and the upper door 5 might be open | released using the tension | pulling coil springs 44 and 56 in this way, it prevents that the imbalance in the force added to the lower door 4 and the upper door 52 arises. Thus, the operations of the doors 4 and 5 can be synchronized.

  On the other hand, if the lower door 4 is slightly lifted when the doors 4 and 5 are in the open state shown in FIG. 4, the microswitch 61 outputs an ON signal. Then, the microcomputer 60 rotates the motor 37 in the other direction. As a result, the drive pulley 42 rotates in the counter arrow A direction, and the wire 50 moves in the counter arrow B direction. As a result, the pin 57 moves downward toward the driven pulley 43, and accordingly, the arm 28 rotates downward about the shaft 29, and the lower door 4 rotates upward. Is closed.

Further, the pin 57 moves upward toward the driven pulley 46 by the movement of the wire 50 in the opposite direction of the arrow B. Then, the link 53 rotates in the counter arrow C direction around the shaft 53a. For this reason, the arm 25 of the upper door 5 moves downward along the guide groove 22 and the support piece 23 moves forward along the guide groove 21. As a result, the upper door 5 is closed.
When the doors 4 and 5 are closed, the coil springs 44 and 56 act in the opposite direction to that when the doors 4 and 5 are opened. For this reason, the closing operation of the lower door 4 that needs to be lifted against gravity can be performed with a relatively small force, while the upper door 5 can be prevented from being vigorously closed by its own weight. .

  Although not described in detail, the microcomputer 60 detects torque based on the driving power of the motor 37. When an abnormal torque is detected, the motor 37 is stopped and the opening / closing operation of the doors 4 and 5 is stopped. Therefore, it is possible to prevent the user from holding his / her hands between the doors 4 and 5 when the doors 4 and 5 are closed, or the doors 4 and 5 from being hit by the tableware basket or the tableware that has jumped out of the washing tank. Further, it is possible to prevent a problem that the doors 4 and 5 are opened while a cloth width or the like is sandwiched between the guide grooves 21.

  Thus, in this embodiment, when the user lifts the lower door 4 slightly, the microswitch 61 outputs an ON signal, and the microcomputer 60 operates the automatic opening / closing mechanism 9 in response to this. Accordingly, the user can easily and reliably close the doors 4 and 5 without applying a large force. Further, since the automatic opening / closing mechanism 9 is configured to close the doors 4, 5, the close contact state between the doors 4, 5 and the front surface of the washing machine body 3 at the time of closing can always be the same.

  By the way, when an operation switch or the like for closing the doors 4 and 5 is provided in front of the operation panel 6 and the doors 4 and 5, the operation switches are hidden when the doors 4 and 5 are opened, so that the operation is difficult. On the other hand, in this embodiment, the microswitch 61 is configured to output an ON signal based on the operation of lifting the lower door 4 slightly. Therefore, the doors 4 and 5 can be closed more easily.

In this embodiment, the doors 4 and 5 are automatically opened when the push button 10 is operated. For this reason, the opening operation | movement of the doors 4 and 5 becomes easy.
Furthermore, in this embodiment, the driving pulleys 42 provided on both the left and right sides of the cleaning machine main body 3 are connected by the connecting rod 41. The driving force of the motor 37 transmitted to one driving pulley 42 is transmitted to the other driving pulley 42 via the connecting rod 41. Therefore, both drive pulleys 42 can be rotated in synchronization, and the doors 4 and 5 can be smoothly opened and closed.

FIG. 6 shows a second embodiment of the present invention, and the differences from the first embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals. In the second embodiment, the locking hook 33 is moved downward by a single solenoid 35. That is, the left and right locking hooks 33 are connected by the interlocking bar 71. When the solenoid 35 is driven, the interlocking rod 71 is moved downward, and as a result, the locking hook 33 is moved downward.
According to such a configuration, the number of parts can be reduced.

  FIG. 7 shows a third embodiment of the present invention, and the differences from the first embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals. In the third embodiment, a voice detection mechanism 81 is provided. The voice detection mechanism 81 outputs a door opening signal or a door closing signal to the microcomputer 60 based on a voice message to open or close the doors 4 and 5 issued by the user. The microcomputer 60 drives the solenoid 35 and the door opening / closing motor 37 based on the signal from the sound detection mechanism 81 to open or close the doors 4 and 5.

  According to the above configuration, for example, when the user cannot operate the push button 10 because he has tableware in both hands, or when the user cannot engage in other work and lift the door 4, or he / she has a visual impairment Even a user can easily open and close the doors 4 and 5.

  FIG. 8 shows a fourth embodiment of the present invention, and the differences from the first embodiment will be described. The same parts as those in the first embodiment are denoted by the same reference numerals. The dishwasher 1 according to the third embodiment includes a contact switch 91 instead of the microswitch 61. The contact switch 91 is provided on both sides of the push button 10 at the upper front of the lower door 4. When the microcomputer 60 detects that the user's hand has touched the contact switch 91 when the doors 4 and 5 are open, the microcomputer 60 drives the door opening / closing motor 37 to close the doors 4 and 5. It has become.

  When the doors 4 and 5 are in the open state, the lower door 4 is in a state of falling forward, and the front surface of the lower door 4 cannot be seen. However, the contact switch 91 can be easily operated without being visible. Moreover, since the contact switch 91 is provided in the whole except the push button 10 of the front upper part of the door 4, the contact switch 91 can be operated more easily.

  FIG. 9 shows a fifth embodiment of the present invention, and the differences from the first embodiment will be described. In the fourth embodiment, a clutch 101 is provided between the rotary shaft 37a of the door opening / closing motor 37 and the sprocket 38. One end of the clutch 101 is fixed to a rotating shaft 37 a of the motor 37. The other end of the clutch 101 is coupled to the shaft 38a of the sprocket 38 when the motor 37 rotates in one direction, and the motor 37 is slightly rotated in the other direction from the coupled state. And the shaft 38a are uncoupled. That is, when the doors 4 and 5 are closed, the driving force of the motor 37 is always transmitted to the driving pulley 42, but when the doors 4 and 5 are opened, the driving force of the motor 37 is transmitted to the driving pulley 42 only at the beginning of opening. It is not transmitted after that.

  With the above configuration, most of the opening operation of the doors 4 and 5 is performed by the gravity of the door 4 itself. For this reason, the opening speed of the doors 4 and 5 can be increased. In this case, a mechanism for absorbing an impact when the door 4 is opened may be provided.

The present invention is not limited to the above-described embodiments, and for example, the following modifications are possible.
A standard course of operation performed in a dishwasher consists of a washing process, a rinsing process, a heating rinse process, and a drying process. In the heating and rinsing process, the cleaning water in the cleaning tank is heated by the heater and becomes a high temperature of 60 degrees or more. Accordingly, the tableware that is rinsed by being sprayed with such high-temperature washing water is also hot, and is easily dried. However, when water leakage is taken into consideration, the exhaust port provided in the door cannot be enlarged, so the steam discharge efficiency in the drying process is poor.

  Therefore, in the case where the dishwasher 1 is configured to be able to execute the above-described operation course, when the heating rinsing process is completed, the microcomputer 60 drives the automatic opening / closing mechanism 9 to open the doors 4 and 5. It is good to comprise so that a drying process may be performed. In this case, the doors 4 and 5 are not fully opened, and the opening operation is stopped to such an extent that a gap of a predetermined amount, for example, several centimeters is formed between the upper door 4 and the lower door 5. By comprising in this way, since a vapor | steam can be discharged | emitted efficiently, without reducing the temperature in the washing tank 2 too much, drying time can be shortened. Moreover, if it comprises so that the vapor | steam in the washing tank 2 may be discharged | emitted from between the doors 4 and 5, the exhaust port 11 provided in the upper door 5 can be abbreviate | omitted. In such a configuration, the microcomputer 60 functions as a rinsing operation executing means.

The automatic opening / closing mechanism 9 may be configured to be remotely operable.
The first and second transmission mechanisms can also be constituted by a link mechanism.
The operation of opening the door does not need to consider the adhesion between the door and the periphery of the opening, and so may be configured to be performed in a main motion. In short, at least the closing operation of the door opening / closing operation may be automatically performed.

  The present invention can also be applied to a dishwasher configured to open and close the opening of the washing tub with a single door. Moreover, it is applicable also to the dishwasher which has an opening in the upper part of a washing tank.

1 is an external perspective view of a dishwasher showing a first embodiment of the present invention. External perspective view of dishwasher with door open Right side view of the dishwasher shown with the right side of the washing machine removed Right side view of the dishwasher with the door removed by removing the right side of the washing machine body Block diagram showing electrical configuration FIG. 3 equivalent view showing a second embodiment of the present invention. FIG. 5 equivalent view showing a third embodiment of the present invention. FIG. 1 equivalent view showing a fourth embodiment of the present invention. The figure which shows the 5th Example of this invention and shows the peripheral part of a door opening / closing motor schematically

Explanation of symbols

  In the drawings, 1 is a dishwasher, 2 is a washing tank, 3 is a washing machine body, 4 is a lower door, 5 is an upper door, 9 is an automatic opening / closing mechanism (door closing mechanism), 15 is a sheathed heater (heating means), 17 is a pump motor (cleaning means), 18 is a water supply port (water supply means), 19 is a water supply valve (water supply means), 32 is an engaging claw (locking means), 33 is a locking hook (locking means), and 35 is a solenoid. (Release means), 37 is a door opening / closing motor, 41 is a connecting rod (connecting member), 42 is a drive pulley (first and second transmission mechanism), and 43 and 46 to 49 are driven pulleys (first and second). , 52 is a guide pin (first and second transmission mechanism), 53 is a link (first and second transmission mechanism), 57 is a pin (first and second transmission mechanism), and 60 is a microcomputer. (Control means, rinsing operation execution means), 61 is a micro switch (control means) , 71 indicates a linkage rod.

Claims (7)

The main body of the washing machine,
A washing tub provided in the main body of the washing machine for storing tableware;
An opening provided in and out of the tableware provided in the washing tank;
A door that opens and closes the opening;
A door closing mechanism for closing the door;
A dishwasher comprising: control means for driving the door closing mechanism based on an operation for closing the door. The door is rotatably supported on both the left and right sides of the main body of the washing machine,
The door closing mechanism includes one motor, first and second transmission mechanisms that are provided on both right and left side portions of the cleaning machine main body and transmit the driving force of the motor to the door, and the first and second transmission mechanisms. A connecting member that connects the transmission mechanism and synchronizes the operations of the first and second transmission mechanisms, and the driving force of the motor is applied to the first and second transmission mechanisms via the connecting member. The dishwasher according to claim 1, wherein the dishwasher is transmitted. The motor is configured to be rotatable in both forward and reverse directions, and the control means rotates the motor in one of the forward and reverse directions to open the door based on the operation to close the door. Configured to rotate the motor in the other direction based on
Between the motor and the first and second transmission mechanisms, when the motor is rotated in one direction, the driving force of the motor is transmitted to the first and second transmission mechanisms, and the motor is in the other direction. 3. A dishwasher according to claim 2, further comprising a clutch for interrupting transmission of the driving force from the motor to the first and second transmission mechanisms when the motor is rotated.   A lock means for locking the closed state of the door and a release means for releasing the lock by the lock means are provided, and the control means causes the release means to release the lock based on an action to open the door. A dishwasher according to claim 3. The locking means is provided between a pair of engaging claws provided on the left and right parts of the door, a pair of locking hooks provided on the left and right parts of the cleaning machine main body and engaged with the engaging claws, and the locking hooks. And an interlocking rod for operating the locking hooks synchronously,
5. The dishwasher according to claim 4, wherein the release means releases the lock by driving the interlocking rod.   2. The dishwasher according to claim 1, wherein the control means drives the door closing mechanism based on a non-contact signal corresponding to an operation for closing the door. The door closing mechanism is configured to open the door,
Water supply means for supplying water to the cleaning tank, heating means for heating the water in the cleaning tank, cleaning means for spraying the water in the cleaning tank onto the tableware to wash the tableware, the water supply means, the heating means, Rinsing operation execution means for performing a heating rinsing operation for spraying hot water on the tableware by controlling the driving of the cleaning means;
2. The dishwasher according to claim 1, wherein the rinsing operation executing means drives the door closing mechanism to open the door by a predetermined amount when the heating rinsing operation is finished.

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