JP5683545B2 - Dishwasher - Google Patents

Description

  The technology disclosed herein relates to a dishwasher.

  A drawer-type dishwasher has been developed, and an example thereof is disclosed in Patent Document 1. This type of dishwasher includes a casing, a box-shaped cleaning tank having an open top, a lid that closes the upper opening of the cleaning tank, and a lifting mechanism that moves the lid up and down in the casing. In this type of dishwasher, when the washing tub is housed in the housing position in the housing, the lid lowered by the lifting mechanism closes the upper opening of the washing tub. By bringing the upper surface of the cleaning tank and the lower surface of the lid into pressure contact with each other via the packing on the lower side of the lid using the lifting mechanism, the leakage of the cleaning water from the cleaning tank is prevented.

JP 2001-87199 A

  In order to reduce the number of parts, it is desired to develop a dishwasher that does not use a lifting mechanism. It is an object of the present specification to provide a dishwasher in which a characteristic structure is provided between a washing tub and a lid so that leakage of washing water from the washing tub is prevented without using an elevating mechanism. It is said.

  The dishwasher disclosed in the present specification includes a housing, a washing tub, and a fixed lid. The washing tank is slidable between an accommodation position accommodated in the housing and a non-accommodation position not accommodated, and has a box shape with an open top. The fixed lid is fixed to the housing, and is arranged so as to cover the upper opening of the cleaning tank when the cleaning tank is stored in the storage position. When the cleaning tank is stored in the storage position, a protrusion provided on one of the cleaning tank and the fixed lid is provided on the other along at least a part of the periphery of the upper opening of the cleaning tank. Get into the groove.

  In the dishwasher of the said aspect, the fixed lid is being fixed to the housing | casing, and it is a simple structure which does not utilize an raising / lowering mechanism. Furthermore, when the cleaning tank is stored in the storage position, a state is formed in which the protrusion enters the groove along at least a part of the periphery of the upper opening of the cleaning tank. When the protrusion enters the groove, when the projection is observed from the inside of the cleaning tank to the outside of the cleaning tank, the facing surface where the protrusion and the groove face each other is folded back, and the cleaning water leaks from the cleaning tank. This can be prevented structurally. The dishwasher of the said aspect can prevent the leakage of the washing water from a washing tank, without using a raising / lowering mechanism.

The state which the washing tank was accommodated in the housing | casing is shown. The state which the washing tank was pulled out from the housing | casing is shown. The disassembled perspective view which looked at the washing tank from the front upper direction is shown. The disassembled perspective view which looked at the washing tank from back upper direction is shown. The disassembled perspective view which looked at the fixed lid from the front upper direction is shown. The disassembled perspective view which looked at the fixed lid from the rear upper side is shown. The exploded perspective view which looked at the fixed lid from the front lower part is shown. Sectional drawing corresponding to the VIII-VIII line (line which is parallel to the front-back direction and passes through the center of a dishwasher) of FIG. 1 is shown. Sectional drawing corresponding to the IX-IX line (line which is parallel to the left-right direction and passes through the center of a dishwasher) of FIG. 1 is shown. Sectional drawing corresponding to the XX line (line which is parallel to the front-back direction and passes the water leakage prevention structure 7) of FIG. 1 is shown. The expansion perspective view of a water leak prevention structure is shown. Sectional drawing of an example of the modification of a water leak prevention structure is shown (state in which the washing tank was accommodated). Sectional drawing of an example of the modification of a water leak prevention structure is shown (state where the washing tank was pulled out). Sectional drawing of an example of the modification of a water leak prevention structure is shown (the state in the middle of the sliding movement of a washing tank). The expansion perspective view of other examples of the modification of a water leak prevention structure is shown. The expansion perspective view of other examples of the modification of a water leak prevention structure is shown. Sectional drawing of another example of the modification of a water leak prevention structure is shown. Sectional drawing of another example of the modification of a water leak prevention structure is shown. Sectional drawing of another example of the modification of a water leak prevention structure is shown.

The technical features disclosed in this specification will be summarized below. The items described below have technical usefulness independently.
(Feature 1) A dishwasher disclosed in the present specification includes a housing, a washing tub, and a fixed lid. The housing may be configured such that at least the front part is open, and the cleaning tank can be drawn out or accommodated through the opening. The cleaning tank may be slidable between a housing position accommodated in the housing and a non-contained position not accommodated through the front opening of the housing. The washing tank has a box shape with an open top. The fixed lid is fixed to the casing and does not move relative to the casing. That is, the lifting mechanism is not attached to the fixed lid. The fixed lid may be configured by a member separate from the casing, or may be configured integrally with the casing as a part of the casing. The fixed lid is arranged so as to cover the upper opening of the cleaning tank when the cleaning tank is stored in the storage position. In the dishwasher disclosed in the present specification, when the washing tub is accommodated in the accommodation position, along the at least part of the peripheral edge of the upper opening of the washing tub, the washing tub is fixed to one of the fixed lid. The provided protrusion enters the groove provided on the other side. For example, when the cleaning tank is provided with a protrusion, the fixed lid is provided with a groove, and when the cleaning tank is provided with a groove, the fixed lid is provided with a protrusion. These protrusions or grooves may be configured as a member separate from the corresponding cleaning tank or fixed lid, or may be configured integrally as a part of the corresponding cleaning tank or fixed lid. The protrusions and grooves may be provided at least at a part of the peripheral edge of the upper opening of the cleaning tank, for example, may be provided only corresponding to the side wall of the cleaning tank, and correspond to the front wall of the cleaning tank. It may be provided only for both, or may be provided for both of them. Here, the protrusion is not limited to a rectangular cross section, but includes a triangular cross section, a semicircular shape, or other shapes.
(Feature 2) The protrusion may extend along the direction in which the cleaning tank slides. The groove may also extend along the direction in which the cleaning tank slides. In this aspect, when the cleaning tank slides, the protrusion moves in the groove. According to this aspect, the slide movement of the washing tank can be allowed.
(Feature 3) A protrusion or groove provided in the cleaning tank may protrude into the cleaning tank. According to this aspect, the presence of the protrusion or groove itself has a function of returning water, and water leakage can be effectively prevented.
(Characteristic 4) In the characteristic 3, the cleaning tank may be configured by joining an upper part including a protrusion or a groove and a lower part including a bottom wall. By making the cleaning tank into a divided configuration, it is possible to integrally form the protrusion or groove and the cleaning tank even if the protrusion or groove protrudes into the cleaning tank.
(Feature 5) The projection may include a first side surface, a second side surface, and a top surface between the first side surface and the second side surface. The groove may include a third side surface, a fourth side surface, and a bottom surface between the third side surface and the fourth side surface. In this case, when the cleaning tank is housed in the housing position, the first side surface and the third side surface face each other, the second side surface and the fourth side surface face each other, and the top surface and the bottom surface face each other. Furthermore, when the cleaning tank is stored in the storage position, at least one of the first side surface and the third side surface, the second side surface and the fourth side surface, and the top surface and the bottom surface is It is desirable to occlude. In the case of closing, the two surfaces may be closed via an elastic seal member, or may be closed without using a seal member. According to this aspect, since the washing tank and the fixed lid are closed at the portion where the water leakage prevention structure by the protrusions and the grooves is present, water leakage can be effectively prevented.
(Characteristic 6) When the first side surface and the third side surface are closed, the first side surface and the third side surface may be inclined and parallel to the direction in which the cleaning tank slides. When the second side surface and the fourth side surface are closed, the second side surface and the fourth side surface may be inclined and parallel to the direction in which the cleaning tank slides. Similarly, when the top surface and the bottom surface are closed, the top surface and the bottom surface may be inclined and parallel to the direction in which the cleaning tank slides. According to this aspect, the sliding movement of the cleaning tank is allowed without interference between the protrusion and the groove, and furthermore, the two surfaces can be closed when the cleaning tank is stored in the storage position.

  As shown in FIGS. 1 and 2, the drawer type dishwasher 1 includes a door 2, a housing 3, a washing tank 4, and a fixed lid 5. The door 2 is fixed to the front wall of the cleaning tank 4 and is provided with an operation panel and the like (not shown). The housing | casing 3 is comprised so that attachment to a system kitchen is possible, and it is the form which the front part and the upper part opened. The washing tub 4 has a box-like shape with an open top, and is configured so that a tableware basket for placing tableware can be attached to the inside. The cleaning tank 4 is slidable in the front-rear direction along a slide mechanism provided on the bottom surface of the housing 3, and is between a housing position accommodated in the housing 3 and a non-contained position not accommodated. Moving. The fixed lid 5 is fixed to the housing 3 so as to cover the upper portion of the housing 3. The fixed lid 5 is fixed to the housing 3 via a fastening member such as a screw, for example.

  As shown in FIGS. 3, 4, 8, 9, and 10, the cleaning tank 4 includes a front wall 4 a, a pair of side walls 4 b, a rear wall 4 c, and a bottom wall 4 d. The front wall 4a and the rear wall 4c face each other with the internal space of the cleaning tank 4 interposed therebetween. The front wall 4a extends between the pair of side walls 4b so as to contact the pair of side walls 4b, and the rear wall 4c extends between the pair of side walls 4b so as to contact the pair of side walls 4b. The pair of side walls 4 b are opposed to and parallel to the internal space of the cleaning tank 4. The pair of side walls 4b is also parallel to the direction in which the cleaning tank 4 slides. 4 d of bottom walls are extended so that the front wall 4a, a pair of side wall 4b, and the rear wall 4c may be contact | connected.

  As shown in FIGS. 3 and 4, protrusions 6 a and 7 a formed integrally with the cleaning tank 4 are provided at the upper ends of the front wall 4 a and the side wall 4 b of the cleaning tank 4. The protrusions 6a and 7a protrude from the upper ends of the front wall 4a and the side wall 4b of the cleaning tank 4 by a predetermined length toward the inside of the cleaning tank 4, and are provided in the entire range of the upper ends of the front wall 4a and the side wall 4b. It has been. The protrusions 6 a and 7 a form protrusions on the front wall 4 a and the side wall 4 b of the cleaning tank 4. Here, of the protrusions 6a and 7a, the one provided on the front wall 4a is referred to as a front wall protrusion 6a, and the one provided on the side wall 4b is referred to as a side wall protrusion 7a. The front wall protrusion 6a protrudes from the upper end of the front wall 4a of the cleaning tank 4 into the cleaning tank 4, and extends between the left and right side wall protrusions 7a. The side wall protrusion 7a protrudes from the upper end of the side wall 4b of the cleaning tank 4 into the cleaning tank 4, and extends between the front wall protrusion 6a and the rear protrusion 8a (described later). The rear wall 4c of the cleaning tank 4 is configured to be lower than the front wall 4a and the side wall 4b. For this reason, the washing tank 4 has a form in which a part of the rear wall 4c is opened. This open portion is a portion through which a groove forming portion (described later) provided on the back surface of the fixed lid 5 passes when the cleaning tank 4 slides. The cleaning tank 4 is provided with a rear protrusion 8a that is integrally formed with the cleaning tank 4 so as to surround a part of the open portion. The rear protruding portion 8a protrudes from the front wall 4a, the side wall 4b, and a part of the rear wall 4c backward by a predetermined length.

  As shown in FIGS. 8, 9, and 10, the washing tank 4 is composed of two members: a cylindrical portion including most of the front wall 4a, the side wall 4b, and the rear wall 4c, and a dish-shaped portion including the bottom wall 4d. Has been. The cylindrical portion is integrally molded by, for example, injection molding. The dish-shaped portion is also integrally formed by, for example, injection molding. The cleaning tank 4 is formed by joining the cylindrical portion and the dish-shaped portion by, for example, wire welding. As described above, the cleaning tank 4 is provided with the protruding portions 6a and 7a protruding into the cleaning tank 4, but the protruding portion 6a is formed by dividing the cylindrical portion and the dish-shaped portion. 7a can be integrally molded.

  As shown in FIGS. 5, 6, and 7, the back surface of the fixed lid 5 is provided with groove forming portions 6 b and 7 b and a rear wall portion 8 b that are integrally molded with the fixed lid 5. As shown in FIG. 8, the front groove forming portion 6 b provided in front of the back surface of the fixed lid 5 has an L-shaped cross section and forms a groove together with the back surface of the fixed lid 5. The groove of the front groove forming portion 6b is opened forward and extends in the left-right direction. The groove of the front groove forming portion 6b is configured such that the front wall protruding portion 6a provided in the cleaning tank 4 enters when the cleaning tank 4 is stored in the storage position. The front wall protruding portion 6a provided in the cleaning tank 4 and the front groove forming portion 6b provided in the fixed lid 5 have a water leakage prevention structure that prevents the cleaning water in the cleaning tank 4 from leaking from the front. 6.

  As shown in FIGS. 9 and 10, the side groove forming portion 7 b provided on the side of the back surface of the fixed lid 5 has an L-shaped cross section and forms a groove together with the back surface of the fixed lid 5. The groove of the side groove forming portion 7b is open toward the side and extends in the front-rear direction. When the cleaning tank 4 slides, the side wall protrusion 7a provided in the cleaning tank 4 moves in the groove of the side groove forming part 7b. This aspect allows the cleaning tank 4 to slide between the storage position and the non-storage position. The groove of the side groove forming portion 7b is configured such that the side wall protruding portion 7a provided in the cleaning tank 4 enters when the cleaning tank 4 is stored in the storage position. The side wall protrusion 7a provided in the cleaning tank 4 and the lateral groove forming part 7b provided in the fixed lid 5 prevent water leakage from preventing the cleaning water in the cleaning tank 4 from leaking from the side. Structure 7.

  As shown in FIGS. 8 and 10, the rear wall portion 8 b provided on the rear side of the back surface of the fixed lid 5 has a plate shape and protrudes downward from the back surface of the fixed lid 5, and also in the left-right direction. It extends to. The rear wall portion 8 b is configured to be larger than the existence range of the rear protruding portion 8 a provided in the cleaning tank 4. Thereby, in the state where cleaning tub 4 is stored in the storage position, rear wall part 8b and rear protrusion part 8a contact, and the open part surrounded by rear protrusion part 8a is obstructed by rear wall part 8b. The rear protrusion 8a and the rear wall 8b are a water leakage prevention structure 8 that prevents the washing water in the washing tank 4 from leaking from behind. It is desirable that the rear wall portion 8b is provided with an elastic seal member at a portion in contact with the rear protruding portion 8a.

  Here, with reference to FIG. 11, the water leak prevention structure 7 provided corresponding to the side wall 4b of the washing tank 4 will be described in detail. The basic structure of the water leakage prevention structure 6 provided corresponding to the front wall 4a of the cleaning tank 4 is the same.

  The side wall protrusion 7a provided on the side wall 4b of the cleaning tank 4 has a rectangular cross section. The protrusion formed by the side wall protruding portion 7a includes a first side surface S1, a second side surface S2, and a top surface St extending between the first side surface S1 and the second side surface S2. The first side surface S1, the second side surface S2, and the top surface St all extend along the front-rear direction (the direction in which the cleaning tank 4 slides). The side groove forming portion 7b provided on the back surface of the fixed lid 5 has an L-shaped cross section. The groove formed by the side groove forming portion 7b includes a third side surface S3, a fourth side surface S4, and a bottom surface Sb extending between the third side surface S3 and the fourth side surface S4. The third side surface S3 utilizes a part of the back surface of the fixed lid 5. For this reason, a groove is formed by the side groove forming portion 7 b and the fixed lid 5. The third side surface S3, the fourth side surface S4, and the bottom surface Sb all extend along the front-rear direction.

  In the state where the cleaning tank 4 is housed in the housing position, since the protrusion of the side wall protruding portion 7a enters the groove of the side groove forming portion 7b, the first side surface S1 and the third side surface S3 face each other. The second side surface S2 and the fourth side surface S4 face each other, and the top surface St and the bottom surface Sb face each other. When these opposing surfaces are observed from the inside of the cleaning tank 4 toward the outside of the cleaning tank 4, the opposing surfaces of the second side surface S2 and the fourth side surface S4, the opposing surfaces of the top surface St and the bottom surface Sb, the first side surface S1 and the third side surface. The facing surfaces of the side surface S3 are arranged in this order, and the facing surfaces are folded back. Due to the structure of the facing surface, the cleaning water sprayed from the spray nozzle (not shown) installed at the approximate center in the cleaning tank 4 is moved from the cleaning tank 4 to the outside of the cleaning tank 4 along the facing surface. Leakage is prevented. In particular, when observed from the cleaning tank 4 toward the outside of the cleaning tank 4, the opposing surfaces of the second side surface S2 and the fourth side surface S4 that have an opening in the cleaning tank 4 are cleaned from the spray nozzle. It extends from the opening to the opposite direction with respect to the injection direction of the water, and the water leakage of the washing water is effectively prevented. Furthermore, when observed from the inside of the cleaning tank 4 to the outside of the cleaning tank 4, the opposing surfaces of the top surface St and the bottom surface Sb extend upward, and this also effectively prevents the leakage of cleaning water. Yes.

  In the state in which the cleaning tank 4 is disposed at the storage position, among the first side surface S1 and the third side surface S3, between the second side surface S2 and the fourth side surface S4, and between the top surface St and the bottom surface Sb. You may be comprised so that at least any one may contact | abut. For example, as shown in FIG. 12, the second side surface S2 and the fourth side surface S4 may be configured to contact each other. In this case, the second side surface S2 of the side wall protruding portion 7a is inclined with respect to the front-rear direction (the direction in which the cleaning tank 4 slides), and in accordance with the inclination, the fourth side surface of the side groove forming portion 7b. S4 is also inclined with respect to the front-rear direction. Further, the second side surface S2 of the side wall protruding portion 7a and the fourth side surface S4 of the side groove forming portion 7b are parallel.

  As shown in FIGS. 13 and 14, in such a form, when the cleaning tank 4 is slid, the second side surface S <b> 2 of the side wall protruding portion 7 a and the fourth side surface S <b> 4 of the side groove forming portion 7 b are used. Is prevented, and the second side surface S2 of the side wall protruding portion 7a and the fourth side surface S4 of the side groove forming portion 7b come into contact with each other when the cleaning tank 4 is disposed at the storage position. Since the second side surface S2 of the side wall protruding portion 7a and the fourth side surface S4 of the side groove forming portion 7b are in contact with each other, water leakage can be more effectively prevented and water vapor leakage can also be prevented. In particular, when observing from the inside of the washing tub 4 toward the outside of the washing tub 4, the opposed surfaces on the side close to the internal space of the washing tub 4, that is, the opposed surfaces of the second side surface S2 and the fourth side surface S4 come into contact. Thus, it is possible to effectively prevent the leakage of the washing water.

  Further, an elastic seal member is not provided between the second side surface S2 of the side wall protruding portion 7a and the fourth side surface S4 of the side groove forming portion 7b. The characteristic form of the water leakage prevention structure 7 can prevent water leakage even if no seal member is provided. For this reason, in the dishwasher 1 of a present Example, the structure is simplified and manufacturing cost is reduced.

  Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

  For example, as shown in FIG. 15, a hanging part 7 c may be provided at the end of the groove forming part 7 b of the water leakage preventing structure 7. The drooping portion 7 c faces the side wall 4 b of the cleaning tank 4. By providing the hanging part 7c, water leakage can be more effectively prevented.

  Moreover, as shown in FIG. 16, the water dripping prevention wall 7d which protrudes upwards from the upper end part of the side wall 4b may be provided. The water dripping prevention wall 7d prevents water accumulated on the upper surface of the protrusion 7a from dripping out of the cleaning tank 4. By providing the water dripping prevention wall 7d, water leakage can be more effectively prevented.

  In the tableware washing machine 1 of the said Example, the protrusion part was provided in the washing tank 4, and the groove | channel formation part was provided in the fixed lid | cover 5. FIG. Instead of this example, as shown in FIG. 17, the cleaning tank 4 may be provided with a groove forming portion, and the fixed lid 5 may be provided with a protruding portion.

  Further, as shown in FIG. 18, the protruding portion and the groove forming portion may be arranged in the vertical direction instead of being arranged in the horizontal direction.

  Further, as shown in FIG. 19, the protruding portion and the groove forming portion may be provided outside the cleaning tank 4 instead of being provided in the cleaning tank 4.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in this specification or the drawings can achieve a plurality of objects at the same time, and has technical usefulness by achieving one of the objects.

1: Dishwasher 2: Door 3: Housing 4: Washing tank 4a: Front wall 4b: Side wall 4c: Rear wall 4d: Bottom wall 5: Fixed lids 6, 7, 8: Water leakage prevention structures 6a, 7a: Projection Portions 6b and 7b: groove forming portions

Claims (6)

A housing,
A cleaning tank that is slidable between a storage position accommodated in the housing and a non-accommodation position that is not accommodated, and has an open top.
A fixed lid that is fixed to the housing and arranged to cover the upper opening of the cleaning tank when the cleaning tank is stored in the storage position;
When the cleaning tank is stored in the storage position, a protrusion provided on the cleaning tank is provided on the fixed lid along at least a part of the periphery of the upper opening of the cleaning tank. Get into the groove,
Wherein said is provided in the cleaning tank projections, dishwasher protruding horizontally toward the cleaning tank. The protrusion includes a first side surface, a second side surface, and a top surface between the first side surface and the second side surface,
The groove includes a third side surface, a fourth side surface, and a bottom surface between the third side surface and the fourth side surface,
When the cleaning tank is stored in the storage position, the first side surface and the third side surface face each other, the second side surface and the fourth side surface face each other, and the top surface and the bottom surface face each other. ,
When the cleaning tank is accommodated in the accommodation position, between the first side surface and the third side surface, between the second side surface and the fourth side surface, and between the top surface and the bottom surface. The dishwasher of Claim 1 with which at least any one of is obstruct | occluded. A housing,
A cleaning tank that is slidable between a storage position accommodated in the housing and a non-accommodation position that is not accommodated, and has an open top.
A fixed lid that is fixed to the housing and arranged to cover the upper opening of the cleaning tank when the cleaning tank is stored in the storage position;
When the cleaning tank is stored in the storage position, a protrusion provided on one of the cleaning tank and the fixed lid along at least a part of the periphery of the upper opening of the cleaning tank, Go into the groove on the other side,
The protrusion includes a first side surface, a second side surface, and a top surface between the first side surface and the second side surface,
The groove includes a third side surface, a fourth side surface, and a bottom surface between the third side surface and the fourth side surface,
When the cleaning tank is stored in the storage position, the first side surface and the third side surface face each other, the second side surface and the fourth side surface face each other, and the top surface and the bottom surface face each other. ,
A dishwasher satisfying any one of the following (1) to (3).
(1) The first side surface and the third side surface are inclined and parallel to the sliding direction of the cleaning tank, and when the cleaning tank is stored in the storage position, the first side surface and the first side surface The space between the three sides is blocked.
(2) The second side surface and the fourth side surface are inclined and parallel to the sliding direction of the cleaning tank, and the second side surface and the first side surface when the cleaning tank is stored in the storage position. The space between the four sides is blocked.
(3) The top surface and the bottom surface are inclined and parallel to the sliding direction of the cleaning tank, and when the cleaning tank is stored in the storage position, the space between the top surface and the bottom surface is Block.   The dishwasher according to claim 3, wherein the protrusion or the groove provided in the washing tank protrudes into the washing tank. The protrusion extends along a direction in which the cleaning tank slides,
The groove extends along a direction in which the cleaning tank slides,
The dishwasher as described in any one of Claims 1-4 in which the said protrusion moves in the said groove | channel when the said washing tank slides.   The dishwasher according to any one of claims 1 to 5, wherein the cleaning tank is configured by joining an upper part including the protrusions or the groove and a lower part including a bottom wall.

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