JP5158121B2 - dishwasher - Google Patents

Description

  The present invention relates to a built-in type dishwasher for cleaning dishes by spraying washing water from a washing nozzle toward the dishes.

  Conventionally, this type of dishwasher is configured as shown in FIGS. 6 to 8 (see, for example, Patent Document 1).

  6-8 shows the conventional dishwasher described in patent document 1. As shown in FIG. As shown in FIGS. 6 to 8, the washing tub 2 housed in the system kitchen and provided inside the washing machine main body 1 is provided with an opening 2 a on the upper side, and a washing basket 4 for storing tableware 3 is arranged inside. doing. A washing nozzle 5 is rotatably provided below the washing basket 4, and washing water stored in the washing tank 2 is circulated by the washing pump 6 and sprayed from the washing nozzle 5 to wash the dishes 3. A slide mechanism 7 composed of rails or the like is fixed below the cleaning tank 2 and supported so as to be movable in the front-rear direction.

  When the tableware 3 is put in and out, the washing tub 2 is pulled forward and the tableware 3 is accommodated from the opening 2a. Next, the washing tank 2 is returned to the washing machine main body 1 and stored, and a lid body 8 that is waiting in the upper space in the washing machine main body 1 is disposed on the inner surface of the washing machine main body 1 (not shown). ) And moving downward to close the opening 2a of the cleaning tank 2.

  A handle 9 is attached to the front surface of the washing tub 2 to pull out the washing tub 2 from the front, operate the dishwasher, and protect a control board (not shown) provided inside the door 10. Yes. Further, a lock piece 11 projects from the front upper surface of the cleaning tank 2, and the lock piece 11 is a lock plate provided in front of the cleaning machine body 1 in a state where the cleaning tank 2 is housed in the cleaning machine body 1. The cleaning tank 2 can be kept in the stored state by being locked to 12, and the cleaning tank 2 is prevented from popping out during operation or when not in use (see FIG. 7A). In order to release the locked state, the handle lever 13 provided in the handle 9 is operated and the lock piece 11 is moved downward to avoid the lock plate 12, the locked state is released, and the cleaning tank 2 is removed. It can be pulled forward (see FIG. 7B).

  In addition, a handle switch 14 for detecting the operation of the handle lever 13 is provided inside the door 10, and a retracting switch 15 for detecting the storage state of the cleaning tank 2 is provided inside the rear of the cleaning machine body 1, so that the cleaning tank is operated during operation. Rotation of the handle lever 13 when trying to pull out 2 and the front and back positions of the washing tub 2 relative to the washing machine body 1 are detected, and the operation of the dishwasher is stopped or the washing tub 2 is not stored. Control is performed to prevent operation.

JP 2009-89834 A

  However, in the conventional configuration, the washing tank 2 can be pulled out at the same time as the handle lever 13 is grasped, and when the washing tank 2 is pulled out without temporarily stopping the dishwasher during the washing process, Since the cleaning tank 2 is pulled out while being detected by the handle switch 14 at the same time as the rotation, the stop of the cleaning pump 6 is delayed depending on the speed of the pulling operation, and the cleaning water jumps out of the apparatus by the injection from the cleaning nozzle 5. It had the problem that it might end up.

  The present invention solves the above-described conventional problems, and by operating the handle lever, it is possible to grasp the handle for the first time, so that the dishwasher is not temporarily stopped during the cleaning process, and the cleaning tank An object of the present invention is to provide a dishwasher that prevents the washing water sprayed from the washing nozzle of the washing pump from jumping out of the machine even when the water is drawn out.

In order to solve the above-mentioned conventional problems, a dishwasher according to the present invention includes a washing tank for storing an object to be cleaned, a washing machine main body for movably storing the washing tank in the front-rear direction, and washing water from a washing nozzle. A cleaning pump to be sprayed ; a handle provided on the front surface of the cleaning tank and having a hook for hooking a hand; a handle lever provided movably in the handle; and a front and rear of the cleaning tank with respect to the main body of the cleaning machine Locking means for locking and unlocking movement in the direction, and handle lever operation detecting means for detecting movement of the handle lever, wherein the lock means is provided with a lock piece provided on the washing tank side. The lock piece is configured to be engaged with a lock plate provided on the washing machine body side, and the movement of the handle lever is converted into a rotation operation of the lock piece. It is configured so that the handle lever operation detecting means, by being configured to operate at an angle smaller than the angle that is converted into rotational movement of the locking piece by movement of said handle lever, the handle lever is pressed That has been moved
The cleaning pump is stopped by detecting it earlier than the lock means is unlocked .

Thus, without pause dishwasher during the washing process, even when the cleaning tank is pulled out, the washing water sprayed from the cleaning nozzle according reliably wash pump can be prevented from jumping outside .

Dishwasher of the invention, without pause dishwasher during the washing process, even when the cleaning tank is pulled out, the washing water pops out outside ejected from the cleaning nozzle according reliably wash pump Can be prevented.

The longitudinal cross-sectional view of the dishwasher in Embodiment 1 of this invention (A) Cross-sectional view of the handle lever part in the locked state of the dishwasher in Embodiment 1 of the present invention (b) Cross-sectional view of the handle lever part in the unlocked state of the dishwasher The principal part perspective view of the dishwasher in Embodiment 1 of this invention (A) The principal part top view of the lock state of the dishwasher in Embodiment 1 of this invention (b) The principal part top view of the lock release state of the same dishwasher Sectional drawing of the handle switch part of the dishwasher in Embodiment 1 of this invention Vertical section of a conventional dishwasher (A) Sectional drawing which shows the lock state of the handle lever part of the conventional dishwasher (b) Sectional drawing which shows the lock release state of the handle lever part Sectional view of the washing tub storage state detector of a conventional dishwasher

The first invention includes a cleaning tank for storing an object to be cleaned, a cleaning machine main body for storing the cleaning tank movably in the front-rear direction, a cleaning pump for injecting cleaning water from a cleaning nozzle, and a front surface of the cleaning tank. A handle having a hook part for hooking a hand, a handle lever movably provided in the handle, and a lock for locking and unlocking the movement of the cleaning tank in the front-rear direction with respect to the main body of the cleaning machine And a lever for detecting movement of the handle lever. The lock means is a lock plate provided on the cleaning machine main body side by rotating a lock piece provided on the cleaning tank side. The lock piece is configured so that the movement of the handle lever is converted into the rotation operation of the lock piece, and the handle lever operation Knowledge means, by being configured to operate at an angle smaller than the angle that is converted into rotational movement of the locking piece by movement of said handle lever, said locking means in that the handle lever is moved pushed by It is a dishwasher that detects the earlier than the lock is released and stops the washing pump .

The dishwasher of the present invention detects the handle switch (handle lever operation detecting means) by the operation of the handle lever, stops the washing pump, and the lock piece is released from the lock plate with a delay, and the lock means is unlocked to wash the washing tank. Therefore, the washing water sprayed from the washing nozzle by the washing pump can be more reliably prevented from jumping out of the machine.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description. Further, the present invention is not limited by this embodiment.

(Embodiment 1)
1-5 shows the dishwasher in the 1st Embodiment of this invention. 1 to 5, a handle 18 is provided at the upper center of the door 16 for placing a hand when the washing tank 17 is pulled out from the front. The handle 18 is supported by the door 16 and can be rotated upward. A handle lever 19 is provided. The operating angle θ1 of the handle lever 19 that rotates about the rotation shaft 20 (first rotation center) is transmitted toward the side wall of the cleaning tank 17 by the rotation shaft 20 having one end 20a fixedly connected to the handle lever 19. The

  In addition, the handle lever 19 has a flat surface with no protrusions or depressions that can be reached from the front of the lower surface 19a, and there is no portion for putting a hand to draw the cleaning tank 17 forward, and the handle lever 19 is moved upward. By rotating, a space 30 in which a hand can be put on the hook portion 18a provided inside the front wall portion of the handle 18 appears.

  When the washing tank 17 is housed in the washing machine main body 1 and the movement in the front-rear direction is locked, as shown in FIG. 2A, the hook 18a of the handle 18 and the lower surface 19a of the handle lever 19 In the middle, there is not enough space to put the hand on the hook 18a and pull it forward. Then, the handle lever 19 is pushed upward to rotate the angle θ1, and only when the positional relationship shown in FIG. 2B is reached, the handle 18 is moved below the lower surface 19a of the handle lever 19 and behind the hook 18a. A space 30 is created and appears.

  The upper limit position where the handle lever 19 is pushed upward to be moved is regulated by the upper surface inner side 18 b of the handle 18.

  In the locked natural state shown in FIG. 2A, the lower end of the hook portion 18a and the lowermost point of the lower surface 19a of the handle lever 19 (in this embodiment, the front end of the lower surface 19a) are configured to have substantially the same height. In addition to eliminating a sufficient space for pulling out, when the dishwasher is viewed from the front, the handle lever 19 is hidden behind the handle 18 so that a good appearance can be realized.

  As shown in FIGS. 2 to 4, the rotating shaft 20 is formed of a wire having a substantially circular cross section. As described above, the one end 20 a is connected to the handle lever 19, and a straight portion formed linearly from the one end 20 a. Is extended in a substantially horizontal left-right direction toward one side wall (left side wall in this embodiment) of the cleaning tank 17, and the other end 20 b is bent obliquely downward and connected to the lock piece 21.

  Here, lock means for locking and unlocking the movement of the cleaning tank 17 in the front-rear direction with respect to the cleaning machine body 1 will be described using the lock piece 21 and the lock plate 23 as main components.

  As shown in FIG. 3 and FIG. 4, a lock portion 21 having a claw portion 24 is provided at the tip of the lock portion formed by an arc-shaped lever in the vicinity of one side wall at the front upper portion of the cleaning tank 17. is there. The lock piece 21 is provided with a shaft 22 (second rotation center) in the vertical direction, and the lock piece 21 is attached so as to be rotatable in a substantially horizontal plane with the shaft 22 as the center when viewed from above. The lock piece 21 is integrally formed with a claw portion 24 and an elastic hinge portion 25 for contacting and locking to a lock plate 23 provided on the inner surface of the side wall of the cleaning machine body 1. When the lock is stopped, the hinge portion 25 comes into contact with the front wall back surface 16a of the door 16 so that the claw portion 24 is positioned and held at the position where the claw portion 24 protrudes from the opening portion 26 on the side wall of the door 16.

  A hole 27 for inserting the other end 20b of the rotating shaft 20 is provided between the shaft 22 and the claw portion 24 of the lock piece 21, and the other is an end portion on the side wall side of the rotating shaft 20. The end 20 b is connected to the hole portion 27, and the movement of the handle lever 19 rotating is converted into the rotation operation of the lock piece 21. With this configuration, the rotation of the handle lever 19 at the operating angle θ <b> 1 is transmitted to the lock piece 21 by the rotating shaft 20, and is converted into the rotation at the operating angle θ <b> 2 using the rotating shaft 20 as a fulcrum.

  Further, as shown in FIGS. 3 and 5, a handle switch 28 (handle lever operation detecting means) for detecting the operation of the handle lever 19 is provided in the vicinity of the handle 18 in the door 16 and shown in FIG. As described above, a pull-in switch 29 (cleaning tank storage state detecting means) for detecting the storage state of the cleaning tank 17 is provided inside the rear of the cleaning machine body 1, and the handle lever 19 when the cleaning tank 17 is pulled out during operation is provided. The rotation operation and the front / rear position of the washing tank 17 with respect to the washing machine main body 1 are detected, and the operation of the dishwasher is stopped or controlled so that the operation cannot be performed without the washing tank 17 being stored.

  Further, the lock piece 21, the lock plate 23, and the pull-in switch 29 are all disposed on the left side wall as viewed from the front.

  It should be noted that the operating angle θ1 of the handle lever 19 is a large angle (in order to realize a reliable operation feeling at the time of unlocking and a reliable operation of the handle switch 28 and to house the handle lever 19 in the handle 18). For example, it is set to about 20 degrees. Further, if the claw portion 24 is lengthened, there is a problem that due to a manufacturing error or the like, it cannot be completely stored in the opening portion 26 on the side wall of the door 16 or is caught when unlocked. Is set smaller than θ1 to ensure the unlocking operation.

  As shown in FIGS. 4 and 5, the handle switch 28 is configured to operate at θ3 smaller than the angle converted to the operating angle θ2 of the lock piece 21 by the rotation of the handle lever 19, so that the lock piece 21 is detected earlier than being released from the lock plate 23 and is switched off.

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

  First, after setting the tableware 3 which is a to-be-cleaned object in the washing tank 17, the door 16 provided in the front surface of the washing tank 17 is pushed, and the washing tank 17 is accommodated in the washing machine main body 1. Immediately before the cleaning machine body 1 is completely stored, the claw part 24 of the lock piece 21 protruding from the opening 26 on the side wall of the door 16 and the inclined surface of the lock plate 23 provided in the cleaning machine body 1 come into contact with each other. .

  When the washing tank 17 is further pushed in this state, the lock piece 21 is rotated about the shaft 22 by the lock plate 23, and the hinge portion 25 formed integrally with the lock piece 21 is bent to temporarily open the claw portion 24. The washing tank 17 is completely housed in the washing machine body 1 by being displaced and housed inside the portion 26. When the cleaning tank 17 is completely stored, the claw portion 24 is positioned behind the lock plate 23, so that the claw portion 24 returns to the state in which the claw portion 24 protrudes from the opening 26 again by the repulsion of the hinge portion 25. In this state, the claw portion 24 and the lock plate 23 are held in a wedge shape with respect to the direction in which the cleaning tank 17 is pulled forward, and thus the cleaning machine body 1 and the cleaning tank 17 are held in a locked state. (See FIG. 2 (a) and FIG. 4 (a)).

  When the tableware 3 is taken out after the operation, the handle lever 19 provided in the handle 18 is brought into contact with the upper surface inner side 18b of the handle 18 or lifted upward to a position close thereto, as described above. A space 30 in which a hand can be placed is created and appears, and the hook 18a can be pulled forward only for the first time. At the same time, the handle lever 19 rotates at an angle of θ1 with the connected rotation shaft 20 as a fulcrum (see FIG. 2B). The rotation of θ1 is transmitted to the lock piece 21 by the rotating shaft 20, and is converted into the rotation of θ2 using the rotating shaft 20 as a fulcrum. When the lock piece 21 rotates at an angle of θ2, the claw portion 24 is displaced and accommodated inside the opening 26, and the lock state of the cleaning machine body 1 and the cleaning tank 17 is released. As a result, while the handle lever 19 is lifted upward, the cleaning tank 17 can be inserted into and removed from the cleaning machine body 1 (see FIG. 4B). The broken line in FIG. 4 (b) shows the same state as in FIG. 4 (a), and is used for understanding the operation of the lock piece 21 in the middle of housing the washing tank 17 in the washing machine body 1. It is.

  Further, when pulling out the cleaning tank 17 during operation, the handle switch 28 for detecting the operation of lifting the handle lever 19 upward and the pull-in switch 29 for detecting the front-rear position of the cleaning tank 17 relative to the cleaning machine body 1 are used in combination. By doing so, the operation of the cleaning pump 6 can be quickly stopped during the operation of the handle lever 19 before entering the pull-out operation, and the handle lever 19 returns to its original angle by releasing the hand from the handle lever 19 after the pull-out. Even if the handle switch 28 is in the ON state, the pull-in switch 29 is in the OFF state, and the operation can be stopped by detecting the pull-out state.

  Further, since the handle switch 28 operates at θ3 smaller than the angle converted to the operating angle θ2 of the lock piece 21 by the rotation of the handle lever 19, the handle switch 28 detects earlier than the lock piece 21 is released from the lock plate 23, Since the switch-off can be performed, the lock can be reliably released after the operation of the cleaning pump 6 is stopped.

  Therefore, by operating the handle lever 19, the handle switch 28 is detected, and after the washing pump 6 is stopped, the handle 18 can be gripped for the first time, so that the dishwasher can be paused during the washing process. Even when the washing tank 17 is pulled out without being washed out, it is possible to reliably prevent the washing water sprayed from the washing nozzle 5 by the washing pump 6 from jumping out of the apparatus.

  As described above, the dishwasher according to the present invention makes it possible to grip the handle for the first time by operating the handle lever, so that the washing water sprayed from the washing nozzle by the washing pump can be surely removed from the machine. Since it can be prevented from popping out, it is useful as a built-in dishwasher or the like having an opening on the upper side and pulling out a washing tub and taking in and out dishes.

1 Washing machine body 3 Tableware (objects to be washed)
17 Washing tank 18 Handle 18a Hooking part 19 Handle lever 20 Rotating shaft 21 Lock piece (locking means)
23 Lock plate (locking means)
28 Handle switch (handle lever operation detection means)
29 Retraction switch 30 space

Claims (1)

A cleaning tank for storing an object to be cleaned, a cleaning machine main body for storing the cleaning tank movably in the front-rear direction, a cleaning pump for injecting cleaning water from a cleaning nozzle, and a hand provided on the front of the cleaning tank A handle having a hook portion for hooking, a handle lever provided movably in the handle, a locking means for locking and unlocking movement of the cleaning tank in the front-rear direction with respect to the main body of the cleaning machine, and the handle lever Handle lever operation detecting means for detecting the movement of the lock, and the lock means is configured such that a lock piece provided on the washing tank side rotates and is locked by a lock plate provided on the washing machine main body side. The lock piece is configured such that the movement of the handle lever is converted into a rotational movement of the lock piece, and the handle lever operation detecting means By being configured to operate at an angle smaller than the angle that is converted into rotational movement of the locking piece by movement of the handle lever, the locking of the locking means is released that it has moved the handle lever is pushed A dishwasher that detects earlier and stops the washing pump .

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