JP3933166B2 - dishwasher - Google Patents

Description

  The present invention relates to a dishwasher that cleans dishes and the like by spraying washing water.

  Conventionally, this type of dishwasher has been configured as shown in FIG. 5 or FIG. Hereinafter, the configuration will be described.

  As shown in FIG. 5, the door body 1 is attached to the lower part of the dishwasher body 3 around the door shaft 2 so as to be openable and closable, and covers the front opening of the dishwasher body 3. A grip portion 4 that is grasped when the door body 1 is opened and closed and a lock means 6 that is released by a switch 5 are provided on the upper portion, and can be fixed in a closed state.

  Further, the locking means 6 is linked with the input function of the operation operation of the dishwasher, and is configured not to operate when the door body 1 is not completely closed, and even when the door body 1 is opened during operation, Consideration is given so that washing water does not spout outside the dishwasher body 3. The dishwasher main body 3 is provided with a washing tub 7 inside, and the washing tub 7 has a dish basket 8 disposed therein.

  Since the basic operation of the dishwasher is generally well known, a brief description will be given below. The user releases the locking means 6 with the switch 5 and then holds the handle 4 and holds the door 1. Is opened, and dirty dishes are set in the dish basket 8 disposed in the washing tub 7 in the dishwasher body 3.

  Next, when the door body 1 is closed and the operation is started by operating the lock means 6, the washing water is heated by the heater disposed at the bottom of the washing tank 7 and sprayed from the washing nozzle toward the tableware. Perform a cleaning process to remove dirt. Then, after rinsing tableware, a drying process of drying is performed and the operation is finished.

Another dishwasher is shown in FIG. In FIG. 6, the two door bodies 10a and 10b provided in the dishwasher main body 9 are respectively rotated in the vertical direction to open and close the opening of the washing tank 11, and the interlocking link 12 causes the door body 12a, 12b is connected. For this reason, if it opens with the door body 10a, the other door body 10b will also open simultaneously. This dishwasher also performs the basic operation described above (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 50-26356

  In such a conventional configuration, in the configuration shown in FIG. 5, the operation of the locking means 6 and the handle portion 4 for opening the door body 1 are usually provided separately, and when the door body 1 is opened, a switch 5, it is necessary to release the lock means 6 and re-grip the handle 4. Moreover, since the door body 1 is urged in the closing direction, the handle portion 4 has to be held and opened until the end of the opening, and there is a problem that it is cumbersome and inferior in usability.

  In recent years, in order to improve the ease of installation of the dishwasher, it is more troublesome to divide the door body into a plurality of parts, and the plurality of door bodies 10a and 10b are rotated by the interlocking link 12 as shown in FIG. Even when connected movably, the doors 10a and 10b have the same problems as the single doors.

  Further, in order to eliminate the annoyance, when an automatic opening mechanism that automatically opens the door bodies 10a and 10b from the closed state to the open state is provided, the user presses the switch during the operation, When the doors 10a and 10b are released after being released, the washing water sprayed at the same time as the release has a problem that it is jetted out of the dishwasher body.

  In addition, there is a problem that the rebound due to the impact force at the time of opening or the impact of the door body 10b occurs, resulting in poor usability.

The present invention solves the above-described conventional problems, and by reducing the operation of an automatic opening mechanism that automatically opens and closes the upper door body and the lower door body , the troublesomeness during use is eliminated and the usability is improved. It aims to improve.

In order to achieve the above object, the present invention provides a washing tank in the dishwasher body, opens and closes the opening provided in the washing tank by the upper door body and the lower door body, and connects the upper door body and the lower door body to a pair of left and right. In addition to interlocking with the interlocking link , the upper door body and the lower door body are configured to automatically open from the closed state to the open state in conjunction with a pair of left and right automatic opening mechanisms . A first spring suspended on the lower door body side of the interlocking link and one side of the cleaning tank; and a second spring suspended on the upper door body side of the interlocking link and an upper support member pivotally supporting the upper door body. The first spring urges the interlocking link in the opening direction of the upper door and the lower door when the upper door and the lower door are closed, and raises the interlocking link from the middle of the opening operation to the opening. It is configured to urge in the closing direction of the door body and the lower door body, the second spring is interlocked Always those configured to bias in the opening direction of the upper door body and the lower door body link.

As a result, even when the door automatically opens from the closed state to the open state, when the user opens the door during operation, the upper door and the lower door are automatically closed. The cleaning water sprayed at the same time as the release is not spouted outside the dishwasher body, and the impact force when opening and the lower door body It is possible to provide an easy-to-use dishwasher that eliminates bothersomeness during use, such as no rebound caused by the impact of the product.

The dishwasher according to the present invention automatically interlocks the upper door body and the lower door body when the user opens the door body during operation even in the case of a door body that automatically opens from the closed state to the open state. As a result, it is possible to open more reliably from the closed state to the open state, and the washing water sprayed at the same time as the release does not spout outside the dishwasher body, and the impact force when opening, An inconvenience during use such as no rebound caused by the impact of the lower door body can be eliminated, and a user-friendly dishwasher can be provided.

According to a first aspect of the present invention, the dishwasher main body, and a cleaning tank provided in the dishwasher body, the door body and Shitatobiratai order to open and close an opening provided in the cleaning tank, the A pair of left and right upper support members pivotally supported by upper fixed pivots provided on the left and right sides of the cleaning tank and rotatably supporting the upper door body from the closed state, and a lower fixing provided on the left and right sides of the cleaning tank A pair of left and right lower support members that are pivotally supported by a pivot and rotatably support the lower door body downward from the closed state, and the upper support member and the lower support member on the left and right, respectively, are an upper link pivot and a lower link pivot. Each has a pair of left and right interlocking links that link the upper door body and the lower door body in a rotatable manner , and biasing means, and the upper door body and the lower door body are automatically interlocked by the biasing force. to a pair of left and right automatic opening mechanism for opening from a closed state to an open state It said biasing means is a second spring which is suspended and the upper support member and the door body side on said interlocking link the first spring which is suspended with one side of the cleaning tank and lower door side of the interlock link configured, the first spring is in the closed state of the on door body and the lower door body urging said interlocking link in the opening direction of the upper door body and the lower door body, from the middle opening movement to open the The interlocking link is configured to bias the upper door body and the lower door body in the closing direction, and the second spring always biases the interlocking link in the opening direction of the upper door body and the lower door body. is obtained by configuration, automatically even when the door body is opened from the closed state to the open state, always opening direction of the first spring and the door which the biasing means acts on the closure direction of the door body in the middle of the open since it is configured to include a second spring for biasing, When the user opens the door body in the middle of rolling, it is possible to reliably open than automatically from a closed state in conjunction with the upper door body and a lower door member to the open state, it is released at the same time as injection Washing water does not spout outside the dishwasher body, and it eliminates the hassle of use, such as impact force when opening and rebound due to impact of the lower door body, making it easy to use A dishwasher can be provided.

The invention according to claim 2 is provided with a speed reduction mechanism that decelerates the operation of the automatic opening mechanism in the invention according to claim 1, and is used in the middle of operation in addition to the impact relaxation by the biasing means. The washing water sprayed when a person opens the door improves the effect of preventing the dishwasher body from ejecting to the outside and the effect of preventing the rebound caused by the impact of the door body, thereby providing a more convenient dishwasher. it can.

Invention according to claim 3, in the invention described in the claim 2, the speed reduction mechanism, which was constructed so as to act on the upper door body opening midway Te odor, upper door moving distance moving speed is faster particularly large By making the speed reduction mechanism act on the body, the speed reduction effect can be made to work efficiently, and the degree of freedom of design of the speed reduction mechanism can be increased. It is possible to improve usability without delaying more than necessary.

The invention of claim 4 is the invention according to the claim 2 or 3, deceleration mechanism includes a third spring, abuts a portion of the support member on which supports the top cover member rotatably as noted above third are those constituted by a sliding member which is biased by a spring, it is possible to easily interlocked with the operation of the support member, it is possible to simplify the configuration of the speed reduction mechanism.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, the dishwasher main body 13 is provided with a washing tank 14, and an opening 15 of the washing tank 14 is opened and closed by an upper door body (door body) 16 and a lower door body (door body) 17. It is composed. An upper support member 18 is fixed to the upper door body 16, and the upper support member 18 is pivotally supported on the base member 20 by an upper fixed pivot 19. A lower support member 21 is fixed to the lower door body 17, and the lower support member 21 is pivotally supported on the base member 20 by a lower fixed pivot 22.

  In addition, a through hole into which a bolt 23 welded to the outer wall surface of the cleaning tank 14 is provided at the lower part of the base member 20 is fixed by a nut 24.

  Further, an interlocking link 25 is provided as an interlocking means for interlocking the upper support member 18 and the lower support member 21. The upper link pivot 26 and the lower link pivot 27 are pivotally supported by the upper support member 18 and the lower support member 21, respectively. ing. The base member 20, the upper support member 18, and the lower support member 21 are provided on both the left and right sides of the cleaning tank 14.

  The lower door body 17 is provided with a push button switch 28 and a lock means 29 for holding the lower door body 17 in a closed state, and interlocked with the push button switch 28 from the locking portion 30 provided in the cleaning tank 14. 29 can be released. In addition, the lock means 29 is linked with the input function of the operation of the dishwasher so that it is not operated when the lower door body 17 is not completely closed. Further, a seal member (not shown) having an elastic body is installed in the seal between the lower door body 17 and the upper door body 16 and the opening 15 and the seal between the lower door body 17 and the upper door body 16.

  Further, the interlocking link 25 is provided with a first holding part 31 and a second holding part 32, and the first holding part 31 is connected by the base member 20 and a first spring 33 (a tension coil spring), In the closed state of the door body, a force is applied to the open side, and in the open state, a force is applied in the closing direction. The second holding portion 32 is connected to the upper support member 18 by a second spring 34 (a tension coil spring), and is configured to apply a force in a direction to always open the upper door body 16. The first spring 33 and the second spring 34 constitute an automatic opening mechanism that automatically opens the upper door body 16 and the lower door body 17 from the closed state to the open state.

  The base member 20 supports a sliding member 35 that slides on the upper support member 18. The sliding member 35 applies a load to the sliding surface with the upper support member 18 by a third spring 36. The decelerating mechanism that decelerates the opening speed of the upper door body 16 and the lower door body 17 is configured.

  Further, the upper support member 18 is made of resin, and is provided with a closing contact portion 37 and an opening contact portion 38 separately from the support portion of the upper door body 16, so that the upper door body 16 is in the closed state and in the middle of opening. The sliding member 35 is in contact with the sliding member 35. Further, a spring holding portion 39 for holding the second spring 34 is provided between the upper fixed pivot 19 and the upper link pivot 26.

  Further, the pivot holding portion 40 that holds the upper link pivot 26 has a long hole shape in the direction of the substantially interlocking link 25 that can move at least upward from the position of the upper link pivot 26 in the closed state of the upper door body 16. It is configured to absorb the variation of the link mechanism and reliably close it.

  The operation in the above configuration will be described. The upper door body 16 and the lower door body 17 are configured to be opened and closed by the upper support member 18 and the lower support member 21, respectively. As shown in FIG. The upper door body 16 is rotated upward by the rotation of 19, and the lower door body 17 is rotated downward by the rotation of the lower fixed pivot 22.

  At this time, the locking means 29 is released by operating the push button switch 28 provided on the lower door body 17 by the interlocking link 25 biased to the open side by the first spring 33 and the second spring 34. Since the upper door body 16 and the lower door body 17 are rotated in conjunction with each other, the user does not need to grasp the upper door body 16 or the lower door body 17 and perform an opening operation. The body 17 automatically opens from the closed state to the open state.

  Further, the first spring 33 urges a force in the closing direction during the opening operation of the lower door body 17, thereby reducing the impact force when the lower door body 17 is opened. At this time, when the closing contact portion 37 provided on the upper support member 18 applies a force to the closing side by the sliding member 35 biased by the third spring 36, the upper door body 16 and the lower door Even when the opening speed of the body 17 is reduced and the user operates the push button switch 28 during driving, the opening speed of the upper door body 16 and the lower door body 17 immediately after opening can be reduced, and the locking means 29 It is possible to prevent the washing water sprayed simultaneously with the release of the spraying from being ejected outside the dishwasher body 13.

  Also, when the opening speed of the upper door body 16 and the lower door body 17 is reduced by the frictional force generated by the opening contact portion 38 and the sliding member 35 biased by the third spring 36, the opening speed is reduced. The impact force of the lower door body 17 can be prevented from being rebounded.

  In addition, since the speed is high when the sliding member 35, the closing contact portion 37, and the opening contact portion 38 are not in contact with each other, the time for opening the upper door body 16 and the lower door body 17 is longer than necessary. It is possible to improve usability without delay.

  Further, the sliding member 35 is installed on the base member 20 on which the upper support member 18 and the lower support member 21 are installed, so that the error of the respective installation positions becomes only the processing error, and the upper door body 16 and the lower door body 17. The movement of the door body after assembly can be stabilized, for example, the variation in the opening speed and the impact force at the time of opening can be made extremely small.

  Further, since a through hole for receiving a bolt 23 welded to the outer wall surface of the cleaning tank 14 is provided in the lower part of the base member 20 and fixed by the nut 24, the upper support member 18, the lower support member 21, the sliding member 35, and The base member 20 with the springs attached can be easily removed during maintenance and inspection, and positioning after maintenance is easy.

  In the present embodiment, the speed reduction mechanism is in contact with the upper support member 18, but the same operation and effect can be obtained even if it is configured to contact the lower support member 21.

(Embodiment 2)
As shown in FIGS. 3 and 4, the base member 41 is provided with an oil damper 42 having a gear portion and meshed with the upper support member 43, so that the upper door body 16 and the lower door are the same as in the first embodiment. A decelerating mechanism for decelerating the opening speed of the body 17 is configured.

  In addition, the upper support member 43 is made of resin and includes a first gear portion 44 and a second gear portion 45 that are part of a gear centered on the upper fixed pivot 19 separately from the support portion of the upper door body 16. The upper door body 16 is configured to mesh with the gear of the oil damper 42 before the closed state and the open state of the upper door body 16. Other configurations are the same as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.

  The operation of the above-described configuration will be described. During the opening operation before the open state, the closed state of the upper door body 16 and the lower door body 17 in which the first gear portion 44 and the second gear portion 45 are engaged with the oil damper 42. The opening speed of the upper door body 16 and the lower door body 17 can be reduced by the force of the oil damper 42.

  Further, the rotational operation can be easily changed depending on the number and position of the gear portions provided on the upper support member 43, and the degree of freedom in design is high.

  The opening speed can be easily adjusted by the type of oil in the oil damper 42 and the ratio of the gear to the upper support member 43.

As described above, the dishwasher according to the present invention has an upper door body and a lower door when the user opens the door body during operation even when the door body automatically opens from the closed state to the open state. In conjunction with the body, it can be automatically opened more reliably from the closed state to the open state, and at the same time as the release, the washing water sprayed does not spout outside the dishwasher main body and opens. It is useful as a dishwasher or the like for washing dishes and the like by injecting washing water, because the troublesomeness at the time of use, such as the impact force at the time and the rebound due to the impact of the lower door body, can be eliminated.

Sectional drawing of the closed state of the door body of the dishwasher of the 1st Embodiment of this invention Sectional view of the opened state of the door of the dishwasher Sectional drawing of the closed state of the door body of the dishwasher of the 2nd Embodiment of this invention Sectional view of the opened state of the door of the dishwasher Cross section of an example of a conventional dishwasher Side view partially cut away of the closed state of the door body of another example of a conventional dishwasher

Explanation of symbols

13 dishwasher main body 14 above the cleaning bath 15 opening 16 door body 17 lower door body 25 interlock link 33 first spring (biasing means)
34 Second spring (biasing means)
35 Sliding member (deceleration mechanism)
36 Third spring (deceleration mechanism)

Claims (4)

A dishwasher body, a washing tank provided in the dishwasher body, an upper door body and a lower door body for opening and closing an opening provided in the washing tank, and upper fixed pivots provided on both right and left sides of the washing tank. A pair of left and right upper support members that are pivotally supported to pivot upwardly from the closed state, and a lower fixed pivot provided on both left and right sides of the cleaning tank, and the lower door body is closed. a pair of left and right lower support member for rotatably supported downwardly from said said on the support member and the lower support member and rotatably connected to each pivot upper link pivot and the lower link pivot in right and left Uetobiratai pair of the pair of right and left interlocking links that link the Shitatobiratai has a biasing means to open automatically from a closed state in conjunction with the upper door body and Shitatobiratai by the biasing force to the open state and an automatic opening mechanism of the biasing means, the interlock link The first spring is suspended from the lower door body side and one side of the cleaning tank, and the second spring is suspended from the upper door body side of the interlocking link and the upper support member. In the closed state of the upper door body and the lower door body, the interlocking link is urged in the opening direction of the upper door body and the lower door body, and the interlocking link is connected to the upper door body and the lower door from the middle of the opening operation to the opening. A dishwasher configured to bias the body in the closing direction, and the second spring constantly biases the interlocking link in the opening direction of the upper door body and the lower door body . Dishwasher according to claim 1 Symbol placement with a reduction mechanism for reducing the operation of the automatic opening mechanism. Reduction mechanism, Dishwasher according to claim 2, wherein configured so as to act on the upper door body open middle Te smell. Deceleration mechanism, according to claim constituted a third spring, by a sliding member which is biased on the door body in the third spring to a portion abutting on the support member for rotatably supported Dishwasher according to 2 or 3 .

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