JP2009142538A - Dish washer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dish washer capable of surely preventing a washing tank from being pulled out outward even in the case where the washing tank is strongly pulled out during washing operation, not requiring to apply extra machining to a door portion, capable of using a panel of a custom kitchen to the door portion, and capable of attaining an excellent sense of beauty. <P>SOLUTION: The dish washer comprises a lock mechanism 40 for establishing such a lock condition that the washing tank 2 is housed in a washing machine body 1 and cannot be pulled out during the washing operation and for establishing such an unlock condition that the washing tank 2 can be pulled out from the washing machine body 1 when the washing operation is not carried out, the lick mechanism 40 is arranged in the region other than the door portion 9 for opening and closing the front side opening portion 3 of the washing machine body 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a dishwasher, and more specifically, a washing tank can be taken in and out in a substantially horizontal direction through an opening provided in the front surface of the dishwasher body, and the washing tank is interlocked with the washing tank in and out. The present invention relates to a drawer-type dishwasher in which an upper surface opening for taking in and out of tableware provided in can be opened and closed with an inner lid.

  In general, in a built-in type dishwasher for incorporation into a system kitchen or the like, the washing tub can be slid in and out in a substantially horizontal direction through an opening provided on the front side of the washing machine body. A so-called drawer type is often applied. In this case, the upper surface opening is usually formed in the upper part of the washing tank so that dishes to be washed can be taken in and out, and a door part for opening and closing the opening part on the front side of the washing machine body is provided. Things are used. Furthermore, an inner lid is provided on the inner upper part of the main body of the cleaning machine so that it can be raised and lowered. When the cleaning tank is stored up to a predetermined storage position in the main body of the cleaning machine, the inner lid is lowered and seals the upper surface opening of the cleaning tank. It is configured to stop.

  In such a drawer-type dishwasher, if the user accidentally pulls out the washing tank from the washing machine body during the washing operation, the inner lid rises in conjunction with this, and the upper surface opening of the washing tank Therefore, the cleaning water in the cleaning tank is spouted and scattered from the upper surface opening to the outside.

  Therefore, as a countermeasure for preventing the ejection of cleaning water during such a cleaning operation, in the conventional technology, for example, a lock mechanism that operates with a solenoid is provided on the door portion on the front surface of the cleaning tank, and an operation lever provided on the door portion is operated. There has been proposed a solenoid that acts to lock the washing tank and prevent the washing tank from being pulled out during the washing operation (for example, see Patent Document 1 below).

  In another conventional technique, an actuator such as a gear motor for raising and lowering the inner lid is provided, and during the cleaning operation, the actuator is operated to lower the inner lid to seal the upper surface opening of the cleaning tank and lock A device that operates a mechanism to lock a cleaning tank has been proposed (for example, see Patent Document 2 below).

  In another prior art, an actuator such as a gear motor for raising and lowering the inner lid is provided, and during the cleaning operation, the inner lid is lowered and pressed in close contact with the upper surface opening of the cleaning tank, and the cleaning tank is driven by the pressing force. Have been proposed (see, for example, Patent Document 3 below).

JP 2003-088488 A JP 2005-058372 A Special table 2003-529431 gazette

  In the built-in type dishwasher that is installed in the system kitchen as described above, it is said that the same thing as the door material of the system kitchen is attached to the front of the dishwasher so that it has a sense of unity with the system kitchen. There is a request. When such a door material of a system kitchen is used as a door material of a dishwasher, the same handle as that of a general handle for a system kitchen is used for pulling out a washing tank of the dishwasher.

  In the prior art described in Patent Document 1, it is necessary to incorporate a lock mechanism into the door material attached to the front surface of the cleaning tank, so that it is difficult to apply a general door material of a system kitchen as it is. In addition, since it is necessary to separately incorporate an operating lever for operating the lock mechanism around the handle part provided on the door material, in addition to the handle, the operating lever etc. will protrude from the door part to the outside. There is a problem that the sense of unity with the kitchen is impaired and the appearance is deteriorated.

  Moreover, in the prior art described in Patent Documents 2 and 3, by controlling the actuator and the gear motor, it is possible to raise and lower the inner lid and lock the cleaning tank during the cleaning operation. Can be applied as it is, and it is not necessary to separately provide an operation lever for operating the lock mechanism around the handle portion of the door member, and the appearance characteristics can be kept high.

  However, in the prior art described in Patent Document 2, adverse effects such as excessive compression to the sealing material provided on the inner lid and insufficient compression of the sealing material due to dimensional variations of the opening / closing mechanism from the actuator to the inner lid. In order to avoid this, a buffer spring is provided. For this reason, if the user carelessly pulls the washing tank during washing operation, the spring will be extended and the lock mechanism will be released without permission, and the washing tank will be pulled out and the washing water will be discharged to the outside. This causes problems such as jetting and scattering, and the function as the original locking mechanism is not sufficiently performed.

  Moreover, in the prior art described in Patent Document 3, the tightening direction of the inner lid to the cleaning tank is a direction orthogonal to the pulling-out direction of the cleaning tank, and the tightening force of the sealing member provided on the inner lid Limited to clamping force within the elastic range. Therefore, in the case of Patent Document 3, as in Patent Document 2, if the user accidentally pulls the cleaning tank strongly during the cleaning operation, the cleaning tank may be pulled out from the cleaning tank body, and the lock There is a problem that it does not perform its function as a mechanism sufficiently. Moreover, when the cleaning tank is forcibly pulled out with the inner lid sealing the cleaning tank, a shearing force acts on the tightening portion of the inner lid to the cleaning chamber at right angles to the tightening direction. The seal part of the lid may be damaged.

  The present invention has been made to solve the above-described problem, and even when a user accidentally pulls the cleaning tank accidentally during the cleaning operation, the cleaning tank is pulled out to the outside. Can be reliably prevented, and there is no need to apply extra processing to the door part that opens and closes the opening on the front of the machine, and the system kitchen panel can be used for the door part. An object is to provide a dishwasher capable of realizing a beautiful appearance.

  In order to achieve the above object, a dishwasher according to a first aspect of the present invention includes a washing tank in which dishes to be washed are stored, and a front opening through which the washing tank is taken in and out. A cleaning machine main body, a door for opening and closing the front opening of the cleaning machine main body, and tableware provided in the cleaning tank when the cleaning tank is stored up to a predetermined storage position in the cleaning machine main body. The upper surface opening for loading and unloading is sealed, and the upper surface is interlocked with the loading and unloading of the cleaning tank so that the cleaning tank is separated from the upper surface opening of the cleaning tank when the cleaning tank is pulled out from the cleaning machine body. An inner lid that opens and closes the opening, and the cleaning tank is locked in the cleaning machine main body so that it cannot be pulled out during the cleaning operation, and the cleaning tank is cleaned when the cleaning operation is not performed. The machine itself Comprising a locking mechanism to an unlocked state to be able to draw, the locking mechanism is characterized in that it is arranged in a region other than the door section.

  A dishwasher according to a second aspect of the present invention is the dishwasher according to the first aspect of the present invention, wherein the locking mechanism includes a locked portion disposed in the cleaning tank, and the cleaning machine main body includes the locking unit. A locking member that locks the locked portion when the cleaning tank is stored in a predetermined storage position of the cleaning machine main body, and a locking bias that biases the locking member toward the locking position And an unlocking drive means for operating the locking member from the locking position to the non-locking position separated from the locked portion against the biasing force of the locking biasing means. And a cleaning tank position sensor for detecting that the cleaning tank is in a predetermined storage position, and whether the locking member of the locking mechanism is in the locking position or a non-locking position. A locking member position sensor for detecting whether or not there is a pump, and a pump for circulating a cleaning liquid for dish washing, A switch for starting and stopping the cleaning operation, and a control means for controlling at least the operation of the pump and the unlocking drive means. The control means is instructed to perform a cleaning operation by the switch operation. In this case, the operation of the unlocking driving means is restricted so that the locking member is held at the locking position, and the cleaning tank is moved to the predetermined storage position by the cleaning tank position sensor. Only when it is detected that the locking member position sensor detects that the locking member is in the locking position, the pump is started to start the cleaning operation, and the cleaning operation is completed. In the case of shifting to the standby state or when the stop of the washing operation is instructed by the switch operation, the locking release driving means is operated after the pump is stopped to Control is performed to move the stop member to the non-locking position.

  Moreover, the dishwasher concerning invention of Claim 3 WHEREIN: The structure of invention of Claim 2 WHEREIN: The said washing tank is the said predetermined | prescribed part at the front-end | tip part facing the said to-be-latched part. An inclined portion is formed that acts to move the locking member to the non-locking position against the urging force of the locking urging means when the locked portion is moved to the storage position. It is characterized by having.

  According to the present invention (Claim 1), the lock mechanism is disposed in a region other than the door portion that opens and closes the front opening of the cleaning machine main body, and the lock mechanism is provided with a cleaning tank during the cleaning operation. Since it is locked so that it can not be pulled out because it is housed in the main body of the washing machine, it operates so that it is unlocked so that the washing tank can be pulled out of the main body of the washing machine when no washing operation is performed. The door part that opens and closes the opening on the front surface of the main body of the washing machine does not need to be subjected to extra processing, and the appearance is not impaired. Therefore, by attaching the same material as the door of the system kitchen to the front surface of the dishwasher, it is possible to have a sense of unity with the system kitchen. Moreover, during the cleaning operation, the cleaning tank is securely locked to the main body of the cleaning machine by the lock mechanism, so that even if the user accidentally pulls the cleaning tank accidentally, the cleaning tank is pulled out. It is possible to surely prevent the occurrence of problems, and it is possible to effectively take measures to prevent washing water from being ejected during the washing operation.

  Further, according to the present invention (Claim 2), in the standby state before the start of the cleaning operation or after the cleaning operation, the locking member is held in the non-locking position by the action of the locking release driving portion, and the cleaning tank Since it is in the unlocked state, the washing tank can be freely put in and out of the washing machine body. Further, at the start of the cleaning operation, the operation of the unlocking driving means is restricted so that the locking member is held at the locking position, and the cleaning tank may be in a predetermined storage position by the cleaning tank position sensor. Since the pump is started and the cleaning operation is started only when it is detected and the locking member position sensor detects that the locking member is in the locking position, the cleaning tank side The stopper is securely locked by the locking member on the washing machine main body side. For this reason, during the cleaning operation, the state where the cleaning tank is locked in the predetermined storage position of the main body of the cleaning machine is stably maintained, and the cleaning tank is not prepared even when the user accidentally pulls the cleaning tank accidentally. Will not be pulled out to the outside.

  Also, unlike the conventional technique, the inner lid is lowered during the cleaning operation and brought into close contact with the upper surface opening of the cleaning tank and pressed, and the locking mechanism is locked by the pressing force. Since it is provided separately from the lid, there is no possibility that the cleaning tank is accidentally pulled out and the seal portion of the inner lid is not damaged, and high reliability can be ensured. In addition, since the washing tank can be locked / unlocked by electrical control, there is no need to provide an operating lever for the locking mechanism near the handle of the washing tank as in the prior art, maintaining a sense of unity with the system kitchen. can do.

In the dishwasher according to the invention of claim 3, when the locked portion is locked by the locking member, the locking member is simply moved toward the locking position by the locking biasing means. Because it is only energized, the locking member is locked by applying an external force to the locking member even if the unlocking drive means does not operate due to a power failure or in the event of a failure. The lock can be easily released by detaching from the part.
And after pulling out the washing tank and taking out the dishes, the washing tank is locked when the washing tank is moved to the specified storage position in the main body of the washing machine even if the power recovery from power failure or failure has not been repaired. The portion abuts against the inclined portion at the tip of the locking member, and the locking member is moved to the non-locking position against the urging force of the urging means for locking, and finally the locked portion is locked. It will be in the state latched by the member.

  For this reason, it is possible to avoid a situation where the drawn out washing tank gets in the way or the washing tank must be left unsightly with the washing tank pulled out, and the washing tank is stored. In this case, even if the locked portion and the locking member come into contact with each other, no excessive stress is generated, so that it is possible to reliably prevent the occurrence of a failure such as breakage or deformation of the lock mechanism.

  Hereinafter, examples of the present invention will be shown and the features thereof will be described in more detail.

1 is a schematic perspective view showing the overall configuration of a dishwasher according to an embodiment of the present invention, FIG. 2 is a side cross-sectional view showing a drawing state of the washing tank, and FIG. 3 is an operation explanatory view showing a drawing state of the washing tank, 4 is a side sectional view showing an intermediate state between the drawer state and the storage state of the cleaning tank, FIG. 5 is an operation explanatory diagram showing an intermediate state between the drawer state and the storage state of the cleaning tank, and FIG. 7 is a side sectional view showing the storage state of the tank, FIG. 7 is an operation explanatory view showing the storage state of the cleaning tank, FIG. 8 is a plan view showing a part of the storage state of the cleaning tank, and FIG. It is a top view which shows a state except an inner cover.
The dishwasher of this embodiment is substantially box-shaped, and is provided with a front surface opening 3 for taking in and out the cleaning tank 2 on the front side, and is provided with a main body (main body casing) 1. The above-described cleaning tank 2 is accommodated in a storage space inside the door in such a manner that it can be taken in and out in a substantially horizontal direction through the front opening 3.
On the upper surface side of the cleaning tank 2, an upper surface opening 4 is provided for taking in and out tableware 5 (FIG. 1) and a cleaning basket 6 (FIG. 6 and the like). Further, an inner lid 10 that opens and closes the upper surface opening 4 of the cleaning tank 2 is disposed in an upper portion inside the cleaning machine main body 1 in a state where the inner lid 10 is held so as to be movable up and down in a substantially vertical direction. Further, in the washing machine main body 1, a pump for circulating a washing liquid for washing dishes is provided in order to perform a washing operation, although not shown.

  In addition, a pair of left and right rails 7 for guiding when the cleaning tank 2 is put in and out is disposed inside the cleaning machine body 1, and the cleaning tank 2 is connected to the cleaning machine body 1 via the pair of left and right rails 7. The storage space is configured to be slidable in the storage movement direction indicated by arrow A and in the drawer movement direction indicated by arrow B.

  The washing tank 2 is provided with a door 9 on the front side thereof for opening and closing the front opening 3 of the washing machine main body 1. The door 9 is provided with a handle 8, and the user performs a washing operation. And an operation panel having an operation / stop switch 57 for stopping the operation. And, as shown in FIG. 1, the user holds the handle 8 and slides the cleaning tank 2 in the pulling movement direction B so that the cleaning tank 2 is pulled out to the front side of the cleaning machine body 1. The tableware 5 and the washing basket 6 can be taken out and stored. In addition, the user can slide the cleaning tank 2 in the storage movement direction A to store the cleaning tank 2 in the cleaning machine main body 1 so that the tableware 5 can be cleaned or dried. It is configured.

  The inner lid 10 is configured to open and close so that the cleaning tank 2 is closed when the cleaning tank 2 is housed in the cleaning machine body 1 and is opened when the cleaning tank is pulled out from the cleaning machine body 1. In the closed state, it is possible to suppress and prevent the washing water from splashing from the washing tub 2 at the time of washing dishes, and in the open state, the tableware 5 and the like can be taken in and out of the washing tub 2. Yes.

  A pair of front and rear cam pins 37 (FIG. 3) functioning as cam followers are provided on the left and right sides of the inner lid 10 so as to protrude outward. Further, between the upper portion of the inner lid 10 and the front end portion of the cleaner main body 1, a lid spring 38 made of a coil spring that biases the inner lid 10 toward the front opening 3 of the cleaner main body 1 is provided. It is intervened.

  Further, at the upper left and right side ends of the inside of the cleaning machine main body 1, as shown in FIG. 10, the pair of front and rear holding tongues 23 individually correspond to the cam pins 37 of the inner lid 10. And are provided integrally. A clamp member 26 is fitted between the pair of front and rear holding tongue pieces 23 so as to be movable in the up-down direction (direction indicated by reference numeral C).

  Each clamp member 26 is made of a molded product made of synthetic resin or metal, and the upper portion thereof has cam grooves 22 into which the above-described cam pins 37 of the inner lid 10 are fitted, and the outer sides of both ends of the cam grooves 22. A holding piece 24 is formed which is positioned and held in contact with the upper edge of each holding tongue piece 23. Further, a receiving surface 35 (FIG. 3A, etc.), which will be described later, of the cleaning tank 2 is in contact with the lower portion of the clamp member 26 so as to restrict the movement of the clamp member 26 in the vertical direction C. A portion 25 is formed.

  As shown in FIG. 3, the cam groove 22 is formed in a substantially V shape symmetrically about the center line L. When the cleaning tank 2 is stored in the cleaning machine main body 1, the cam pin 37 is a cam. When the washing tub 2 is pulled out from the washing machine main body 1 at the lowermost position of the groove 22, the cam pin 37 moves to the uppermost position of the cam groove 22.

  The cleaning tank 2 is formed with flange portions 32 (FIGS. 3 (A) and 5 (A)) projecting outwardly on each side along the outer periphery of the upper surface opening 4, and each of the left and right sides thereof Receiving surfaces 35 (FIGS. 3 (A) and 5 (A)) are formed in a state of projecting downward from the flange portion 32, and the lower edge of each receiving surface 35 is formed on the contact portion 25 of the clamp member 26. Opposite.

  A pair of guide levers 11 (FIGS. 3 and 5) serving as an inner lid opening / closing operation tool are respectively arranged at the upper left and right positions on the inner rear side of the cleaning machine body 1. Each guide lever 11 includes an attachment fixing portion 12 fixed to the washing machine main body 1, a swing support shaft 39, a push lever 13, and a guide pin 14. The proximal end side of the push lever 13 is pivotably mounted about a swinging support shaft 39 provided in the mounting and fixing portion 12, and a cylindrical shape extending in the vertical direction on the distal end side. Guide pins 14 are provided.

  On the other hand, on the left and right sides of the rear end portion of the inner lid 10, elongated holes 16 (FIG. 3A) extending in a direction orthogonal to the moving direction of the cleaning tank 2 are formed. The guide pin 14 at the front end of this is always inserted. As a result, the push lever 13 can swing within a slidable range in which the guide pin 14 slides along the elongated hole 16, and accordingly, the inner lid 10 also falls within the swayable range of the push lever 13. It is configured to move along the front-rear direction (the left-right direction in FIG. 3B). Since the cam pins 37 are fixed to the left and right of the inner lid 10 as described above, the cam pins 37 slide along the cam grooves 22 of the clamp member 26 as the inner lid 10 moves back and forth. .

  Further, as shown in FIG. 9, cleaning tank grooves 15 are provided individually corresponding to the guide levers 11 on the upper left and right of the rear end of the cleaning tank 2. For example, as shown in FIG. 3B, the cleaning tank groove 15 is formed in a state surrounded by a front-side contact portion 17 and a rear-side contact portion 18, The contact portion 17 extends to the side surface of the cleaning tank 2, and the back contact portion 18 is formed so as to recede backward in the middle. And each washing tank groove | channel 15 is comprised so that engagement / disengagement with the guide pin 14 of the front-end | tip of the push lever 13 by rocking | fluctuation of the push lever 13 may be carried out.

In addition, a pair of left and right toggle mechanisms 27 for assisting the moving force when the cleaning tank 2 is moved in the storing direction and the pulling-out direction are provided at a rear portion in the cleaning machine main body 1.
Each toggle mechanism 27 is provided with an engaging pin 36 at the rear end portion of the cleaning tank 2, while a substantially L-shaped lever 29 is rocked by a pivot pin 31 at the rear end portion of the cleaning machine body 1. An engagement notch 28 that engages with the engagement pin 36 is formed on one end side of the lever 29 that sandwiches the pivot pin 31, and the other end has one end on the cleaning machine body 1. The other end of the fixed coil spring 30 (FIGS. 3 (A) and 5 (A)) is attached. As a result, the biasing force (rotation direction) of the coil spring 30 with respect to the lever 29 is configured to switch between the clockwise direction and the counterclockwise direction at the setting switching position D shown in FIG. .

  In this embodiment, a lock mechanism 40 is provided on the rear side in the cleaning machine main body 1. The lock mechanism 40 is configured such that the cleaning tank 2 is housed in the cleaning machine main body 1 during the cleaning operation and cannot be pulled out, and the cleaning tank 2 is connected to the cleaning machine main body 1 when the cleaning operation is not performed. The lock release state, which is a state in which it can be pulled out freely from the inside, can be realized.

  That is, in the case of this embodiment, the lock mechanism 40 is provided with a strike pin 41 as a locked portion at the rear end of the cleaning tank 2 as shown in FIGS. A hook 42 as a locking member for locking the strike pin 41 when the cleaning tank 2 is stored in a predetermined storage position of the cleaning machine main body 1, and the hook 42 is directed toward the lock position of the strike pin 41. A torsion spring 43 as an urging means for urging to be urged, and the hook 42 is separated from the strike position of the strike pin 41 to the non-lock position against the urging force of the torsion spring 43, that is, from the strike pin 41. The cam 44 is provided as an unlocking drive means for operating to the position, and the cam shaft 48 of the cam 44 is provided with a cam drive mode (not shown) for driving the cam 44 to rotate. Data is configured is connected.

  The hook 42 is swingably supported by a support shaft 45 fixed to the main body 1 of the washing machine, and is directed toward a position where the strike pin 41 is locked by a torsion spring 43 wound around the support shaft 45. It is biased (biased clockwise in FIG. 12). Further, the hook 42 is formed with an inclined portion 46 at a tip portion facing the strike pin 41. The inclined portion 46 smoothly moves the hook 42 to the non-locking position against the urging force by the torsion spring 43 when the cleaning tank 2 is moved to a predetermined storage position and the strike pin 41 comes into contact therewith. It works like this. When the cleaning tank 3 returns to the predetermined storage position, the strike pin 41 is again locked by the hook 42.

Further, a hook position sensor 50 as a locking member position sensor for detecting whether the hook 42 is in the locking position or in the non-locking position is disposed in the vicinity of the light shielding member 47 of the hook 42. . The hook position sensor 50 is composed of, for example, a photocoupler in which a light projecting unit 50a and a light receiving unit 50b are arranged to face each other.
Further, a light shielding member 47 protrudes at a position on the opposite side across the inclined portion 46 and the support shaft 45 of the hook 42. In the configuration of this embodiment, as shown in FIG. 12 (a), when the light shielding member 47 of the hook 42 is interposed between the light projecting unit 50a and the light receiving unit 50b, the output of the light receiving unit 50b is turned off. It is detected that the hook 42 is in the locked position. Further, as shown in FIG. 12B, when the light shielding member 47 is detached from between the light projecting unit 50a and the light receiving unit 50b, the output of the light receiving unit 50b is turned on and the hook 42 is in the non-locking position. It is detected.

  Further, as shown in FIGS. 13A and 13B, a mounting plate 52 is provided at the rear end of the cleaning tank 2, and a cleaning tank position sensor 53 is fixed to the mounting plate 52. A lever 54 is swingably attached in the vicinity of the tank position sensor 53. Further, a protrusion 56 for pressing the lever is formed on the mounting plate 55 of the rail 7 of the cleaning machine body 1 at a position facing the lever 54.

  The cleaning tank position sensor 53 detects whether or not the cleaning tank 2 is in a predetermined storage position. Like the hook position sensor 50 described above, for example, the light projecting unit 53a and the light receiving unit 53b face each other. It is composed of arranged photocouplers. Then, as shown in FIG. 13 (a), when the lever 54 is separated from the projection 55 and is positioned between the light projecting portion 53a and the light receiving portion 53b, the output of the light receiving portion 53b is turned off. It is detected that the tank 2 is pulled forward from the predetermined storage position, and as shown in FIG. 13 (b), the lever 54 is pressed by the projection 55, and the light projecting portion 53a and the light receiving portion 53b Since the output of the light receiving portion 53b is turned on when the sensor is separated from the space, it is configured to detect that the cleaning tank 2 is stored in a predetermined storage position.

  FIG. 14 is a block diagram showing a schematic configuration of an operation control system of the dishwasher of this embodiment.

  The controller 58 as a control means is composed of, for example, a microcomputer. By installing a predetermined control program, an operation signal from the operation / stop switch 57, and the hook position sensor 50 and the washing tank position sensor 53 are used. Based on this detection signal, the pump 59 for circulating the cleaning liquid and the operation of the cam drive motor 60 for driving the cam 44 are controlled. The control operation by the controller 58 will be described in detail below.

Next, operation | movement of the dishwasher provided with the said structure is demonstrated.
(1) Opening / Closing Operation of Inner Lid 10 Accompanying Storage and Drawer Movement of Washing Tank 2 When the washing tank 2 is pulled out from the washing machine main body 1, as shown in FIG. Since the guide pins 14 are detached from the cleaning tank groove 15 and the inner lid 10 is pulled by the lid spring 38 toward the front opening side of the cleaner body 1, each guide pin 14 is a long hole in the inner lid 10. 16 is located at a position on the outer end side (hereinafter referred to as a drawer operation position). For this reason, the cam pin 37 of the inner lid 10 has moved to the uppermost position of the cam groove 22 of the clamp member 26, and the inner lid 10 has been lifted away from the upper surface opening 4 of the cleaning tank 2.

  When the cleaning tank 2 is gradually moved in the storage direction A from this state, the cleaning tank groove 15 is still engaged with the guide pin 14 until the cleaning tank 2 reaches the intermediate position shown in FIGS. Since they do not match, the guide pin 14 is held in the pulling operation position.

  When the cleaning tank 2 reaches the intermediate position shown in FIGS. 4 and 5, the near-side contact portion 17 of the cleaning tank 2 contacts the guide pin 14 as shown in FIG. When the cleaning tank 2 is further moved in the storage direction A, the guide pin 14 is pressed by the near side contact portion 17 of the cleaning tank 2, so that the guide pin 14 is inward along the elongated hole 16 of the inner lid 10. And slides in the cleaning tank groove 15. As a result, the push lever 13 rotates counterclockwise in the figure. As the push lever 13 rotates, the inner lid 10 is pushed and moved in the storage direction A against the pulling force of the lid spring 38. Therefore, the cam pin 37 of the inner lid 10 moves from the uppermost position of the cam groove 22 of the clamp member 26 toward the lowermost position, and as a result, the inner lid 10 descends toward the upper surface opening 4 of the cleaning tank 2. .

  When the cleaning tank 2 is moved to the final storage position, as shown in FIG. 7B, each guide pin 14 is positioned on the inner end side in the long hole 16 of the inner lid 10 (hereinafter referred to as a storage operation position). ). Along with this, the cam pin 37 of the inner lid 10 moves to the lowest position of the cam groove 22 of the clamp member 26, and as a result, the contact portion 25 of each clamp member 26 contacts the receiving surface 35 of the cleaning tank 2. The clamp member 26 is prevented from moving in the opening / closing direction C, and the inner lid 10 is pressed against the cleaning tank 2 so that the upper surface opening 4 of the cleaning tank 2 is reliably sealed.

  On the other hand, when the cleaning tank 2 is moved in the pulling direction B from the final storage position, the operation is the reverse of the above description. That is, the pressing action on the guide pin 14 by the front side abutting portion 17 of the cleaning tank 2 is released, and the pulling force of the lid spring 38 is applied to the inner lid 10. The cam pin 37 of the inner lid 10 moves from the lowermost position to the uppermost position of the cam groove 22 of the clamp member 26 while sliding along the elongated hole 16 from the storing operation position toward the pulling operation position. As a result, the inner lid 10 is separated from the upper opening of the cleaning tank 2 and is opened.

  As described above, when the cleaning tank 2 is moved and retracted, the inner lid 10 is interlocked by the interaction of the guide lever 11, the cam groove 22 of the clamp member 26, and the lid spring 38 according to this movement. The opening / closing operation is performed.

(2) Operation of the toggle mechanism 27 in accordance with the storage movement and the drawer movement of the cleaning tank 2 In the state where the cleaning tank 2 is stored in the storage space of the main body 1 of the cleaning machine, as shown in FIGS. The engaging pin 36 protruding rearward from the tank 2 is fitted into the engaging notch 28 of the lever 29, and the rotational force of the lever 29 caused by the urging force of the coil spring 30 causes the cleaning movement of the cleaning tank 2. Acts on the direction A side.

  At this time, as described above, the front contact portion 17 of the cleaning tank 2 contacts the guide pin 14 and presses it toward the storage movement direction A side, so that the cam pin 37 of the inner lid 10 is connected to the cam groove 22. The inner lid 10 is in a state of sealing the upper surface opening 4 of the cleaning tank 2 as a result.

  When the cleaning tank 2 is moved to the pulling movement direction B side from this stored state, the lever 29 is rotated to the pulling movement direction B against the urging force of the coil spring 30, and the lever 29 is shown in FIG. When the set switching position D is exceeded, the turning force of the lever 29 caused by the urging force of the coil spring 30 is switched so as to act on the pulling movement direction B side as shown in FIGS. . As a result, the urging force of the coil spring 30 pushes the cleaning tank 2 toward the pulling movement direction B, and then the engaging pin 36 is removed from the engaging notch 28 and the inner lid 10 is raised as described above. Since the closing of the upper surface opening 4 of the cleaning tank 2 is released, the cleaning tank 2 can be pulled out from the cleaning machine main body 1.

  When the washing tub 2 is pushed back in the storage movement direction A side from this pulled out state, the engaging pin 36 protruding from the washing tub 2 is inserted into the engaging notch 28 of the lever 29 and presses it. On the contrary, the lever 29 is rotated in the storage movement direction A side against the urging force of the coil spring 30. When the lever 29 exceeds the setting switching position D, the turning force of the lever 29 is switched so as to act on the storage movement direction A side, so that the cleaning tank 2 is moved to the storage movement direction A side by the urging force of the coil spring 30. Be drawn.

  As described above, the energizing force (rotating action direction) of the coil spring 30 against the lever 29 of the toggle mechanism 27 is moved clockwise and counterclockwise with the setting switching position D as a boundary as the cleaning tank 2 is moved in and out. Thus, the cleaning tank 2 can be moved and retracted with a small operating force.

(3) Control operation by the controller 58 associated with the operation / stop of the dishwasher In the standby state before the start of the cleaning operation or after the cleaning operation, the controller 58 drives the cam drive motor 60 to rotate the cam 44, The hook 42 is held in the non-locking position where it is detached from the strike pin 41 of the cleaning tank 2 (state shown in FIG. 12 (B)). That is, in the standby state, the washing tank 2 is unlocked by the lock mechanism 40, so that the washing tank 2 can be freely taken in and out and tableware can be taken in and out freely.

  When the operation / stop switch 57 is operated and a cleaning operation is commanded, the controller 58 first determines whether or not the detection output of the cleaning tank position sensor 53 is on. If the cleaning tank position sensor 53 is on, it is considered that the cleaning tank 2 has been stored in the predetermined storage position, so the cam drive motor 60 is activated. As a result, the cam 44 is rotated and the hook 42 is moved to the locking position, so that the strike pin 41 of the cleaning tank 2 is locked by the hook 42 (the state shown in FIG. 12A). At that time, the controller 58 determines whether or not the hook position sensor 50 is turned off. If the hook position sensor 50 is turned off, it is considered that the strike pin 41 of the cleaning tank 2 is securely locked by the hook 42, so that the controller 58 activates the pump 59 for the first time at this time. Accordingly, the cleaning operation is started, and the cleaning water pressurized by the pump 59 is sprayed on the dishes 5 to perform cleaning.

  During the cleaning operation, the hook 42 securely holds the strike pin 41 by the action of the torsion spring 43, so that the state where the cleaning tank 2 is locked at the storage position is stably maintained. Therefore, even when the user carelessly pulls the cleaning tank 2 carelessly, it is possible to reliably prevent the occurrence of the problem that the cleaning tank 2 is pulled out.

  When the predetermined cleaning time has elapsed and the cleaning operation is completed and the system enters the standby state, or when the operation / stop switch 57 is operated during the cleaning operation to command the operation stop, the controller 58 responds accordingly. First, after stopping the pump 59, the cam drive motor 60 is driven to actuate the cam 44, and the hook 42 is rotated against the urging force of the torsion spring 43 to disengage from the strike pin 41. (The state shown in FIG. 12B). Thereby, since the lock | rock by the lock mechanism 40 is again cancelled | released, the washing tank 2 can be taken in and out freely.

  When the strike pin 41 is locked by the hook 42 and the cleaning tank 2 is locked, the hook 42 is only urged to the locking position by the torsion spring 43 and is not restricted by the cam 44. Therefore, even when the cam drive motor 60 does not operate due to a power failure or an emergency failure, the cleaning tank 2 can be unlocked by releasing the strike pin 41 by applying an external force to the hook 42. .

  After the cleaning tank 2 is unlocked, the cleaning tank 2 is pulled out and the dishes are taken out. The strike pin 41 abuts against the inclined portion 46 at the tip of the hook 42 and presses the hook pin 42 against the urging force of the torsion spring 43, and the cleaning tank is moved. When completely stowed in the stowed position, the strike pin 41 is again locked with the hook 42. For this reason, the washing tank 2 can be pushed into a predetermined storage position.

  Accordingly, it is possible to avoid a situation in which the cleaning tank 2 that has been pulled out is in the way of being obstructed or left unsightly while the cleaning tank 2 is pulled out. In addition, when the cleaning tank 2 is stored, no excessive stress is generated even if the strike pin (locked portion) 41 and the hook (locking member) come into contact with each other. It is possible to reliably prevent the occurrence of failures such as breakage and deformation of 40.

  In addition, although the example which provided the toggle mechanism 27 was shown in the dishwasher of the said Example, this toggle mechanism 27 is not essential and can also be set as the structure which abbreviate | omitted the toggle mechanism 27. FIG.

  Moreover, in the said Example, although the lock mechanism 40 is provided in the rear-end part side in the washing machine main body 1, the position of the lock mechanism 40 does not necessarily need to be provided in the rear-end part side in the washing machine main body 1, Any region other than the door 9 that opens and closes the front opening 3 of the cleaning machine main body 1 can be disposed at any location.

  The present invention is not limited to the above embodiment in other points, and various applications and modifications can be made within the scope of the invention.

It is a schematic perspective view which shows the whole structure of the dishwasher concerning the Example of this invention. It is side surface sectional drawing which shows the case where the washing tank which comprises the dishwasher concerning the Example of this invention exists in a drawer state. It is a figure explaining operation | movement of the tableware washing machine concerning the Example of this invention, Comprising: It is a figure which shows the case where a washing tank exists in the drawer state. It is side surface sectional drawing which shows the case where the washing tank which comprises the dishwasher concerning the Example of this invention exists in the intermediate state between a drawing-out state and a storage state. It is a figure explaining operation | movement of the dishwasher concerning the Example of this invention, Comprising: It is a figure which shows the case where a washing tank exists in the intermediate | middle state of a drawer state and a storage state. It is side surface sectional drawing which shows the case where the washing tank which comprises the dishwasher concerning the Example of this invention exists in the accommodation state. It is a figure explaining operation | movement of the tableware washing machine concerning the Example of this invention, Comprising: It is a figure which shows the case where a washing tank exists in the accommodation state. It is a top view which abbreviate | omits one part and shows the accommodation state of the washing tank which comprises the dishwasher concerning the Example of this invention. It is a top view which shows the accommodation state of the washing tank which comprises the dishwasher concerning the Example of this invention except an inner cover. It is a perspective view which shows the attachment state to the washing machine main body of the clamp member which comprises the dishwasher concerning the Example of this invention. It is a top view of the lock mechanism which comprises the dishwasher concerning the Example of this invention. It is a side view of the lock mechanism which comprises the dishwasher concerning the Example of this invention. It is principal part side sectional drawing which shows the attachment state of the washing tank position sensor which comprises the dishwasher concerning the Example of this invention. It is a block diagram which shows schematic structure of the operation control system of the dishwasher concerning the Example of this invention.

Explanation of symbols

1 Main body of cleaning machine (main body casing)
DESCRIPTION OF SYMBOLS 2 Washing tank 3 Front opening part 4 Upper surface opening part 9 Door part 10 Inner lid 40 Lock mechanism 41 Strike pin (locked part)
42 Hook (locking member)
43 Torsion spring (engagement means for locking)
44 Cam (Driving release drive means)
46 inclined part 50 hook position sensor (locking member position sensor)
53 Cleaning tank position sensor 57 Run / stop switch 58 Controller (control means)
59 Pump 60 Cam drive motor

Claims (3)

A washing tank in which dishes to be washed are stored;
A washing machine main body having a front opening through which the washing tank is taken in and out, and performing a washing operation;
A door that opens and closes the front opening of the cleaner body;
When the cleaning tank is stored up to a predetermined storage position in the main body of the cleaning machine, the upper surface opening for taking in and out of dishes provided in the cleaning tank is sealed, and the cleaning tank is pulled out from the main body of the cleaning machine. An inner lid that opens and closes the upper surface opening in conjunction with taking in and out of the cleaning tank so as to be separated from the upper surface opening of the cleaning tank,
The cleaning tank is locked in the washing machine main body so that it cannot be pulled out during the washing operation, and the washing tank can be pulled out from the washing machine main body when the washing operation is not performed. A lock mechanism for unlocking,
The dishwasher characterized in that the lock mechanism is disposed in a region other than the door portion. The locking mechanism has a locked portion disposed in the cleaning tank, and locks the locked portion in the cleaning machine body when the cleaning tank is stored in a predetermined storage position of the cleaning machine body. An engaging member, an urging means for urging the urging member toward the engaging position, and the engaging member against the urging force of the urging means for engaging. On the other hand, an unlocking drive means for operating from the stop position to the non-lock position released from the locked portion is provided,
A cleaning tank position sensor that detects that the cleaning tank is in a predetermined storage position, and a locking member position sensor that detects whether the locking member of the lock mechanism is in the locking position or the non-locking position. And a pump for circulating a cleaning liquid for washing dishes, a switch for starting and stopping a cleaning operation, and a control means for controlling the operation of at least the pump and the unlocking drive means,
The control means includes
When the washing operation is commanded by the switch operation, the operation of the unlocking driving means is restricted so that the locking member is held at the locking position, and the cleaning tank position sensor The pump is activated to perform cleaning only when it is detected that the cleaning tank is in the predetermined storage position and the locking member position sensor detects that the locking member is in the locking position. Start driving,
When the cleaning operation is finished and a transition is made to a standby state, or when the stop of the cleaning operation is instructed by the switch operation, the locking release driving means is operated after the pump is stopped to stop the locking member. The dishwasher according to claim 1, wherein control is performed to move the table to the non-locking position.   At the tip portion of the locking member facing the locked portion, the locked portion is subjected to a biasing force by the locking biasing means when the cleaning tank is moved to the predetermined storage position. 3. A dishwasher according to claim 2, wherein an inclined portion is formed which acts to move the locking member to a non-locking position.

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