JP7148367B2 - Dishwasher - Google Patents

Description

The present invention comprises a washing tank housed in a housing with an open front so that it can be pulled out forward, a dish basket supporting tableware provided in the washing tank, and a washing nozzle provided in the washing tank. Regarding dishwashers.

Conventionally, in this type of dishwasher, the washing nozzle has a center nozzle extending upward at the center of the washing tank. The dish basket has a lower basket arranged in the lower part of the washing tank, and an upper basket arranged in the upper part of the washing tank and adjacent to the center nozzle in one direction in the front-rear direction. there is A nozzle guard frame that surrounds the center nozzle is erected on the lower cage. In addition, the upper car is curved in an arc shape in plan view in which the lateral central portion is offset in one direction in the front-rear direction from the lateral side portions, and the wash water sprayed from the center nozzle to the periphery is supported by each part of the upper car. It is also known that the tableware is evenly covered (see, for example, Patent Document 1).

Furthermore, although the upper car is not curved in an arc shape in a plan view, the upper car is divided into two parts in the horizontal direction, the first divided car part on one side and the second divided car part on the other side. It is also known that each of the first and second divided baskets can be raised and lowered between a usage posture in which tableware is supported and a non-use posture in which it is raised in one of the front and back directions (see, for example, Patent Document 2). According to this, by standing up each divided basket part in the non-use posture, large tableware can be placed on the lower basket part below it, and usability is improved.

Also, in this case, the laterally inner end of the portion that becomes the other end in the front-rear direction in the use posture of each of the first and second divided cages is seated on the upper end of the nozzle guard frame. According to this, the end of each divided cage is supported by the nozzle guard frame, and the support rigidity of each divided cage can be ensured.

Here, even in the case where the upper car is curved in an arc shape when viewed from above, in order to improve usability, the upper car is divided into two parts in the horizontal direction, the first divided car part in one of the lateral directions and the second divided car part in the other lateral direction. It is desirable to have a two-split basket, and to be able to raise and lower each of the first and second split baskets between a use position and a non-use position. However, in the arc-shaped upper cage when viewed from above, the position of the laterally inner end of the portion that becomes the other edge in the front-rear direction in the usage posture of each divided cage part is considerably deviated in one direction in the front-rear direction with respect to the center nozzle. Therefore, it becomes difficult to seat this end on the upper end of the nozzle guard frame. In this case, it is conceivable to increase the diameter of the nozzle guard frame so that the end of each divided cage is seated on the upper end of the nozzle guard frame. However, in this case, the effective area of the lower basket capable of supporting tableware is narrowed due to the increased diameter of the nozzle guard frame.

JP 2017-170187 A JP 2011-147630 A (paragraphs 0002, 0003, FIG. 15)

In view of the above points, the present invention provides the other end edge in the front-rear direction in the usage posture of each divided cage part without increasing the diameter of the nozzle guard frame even when the upper cage is curved in a circular arc shape in a plan view. An object of the present invention is to provide a dishwasher in which the laterally inner end of a portion can be supported by a nozzle guard frame.

In order to solve the above-mentioned problems, the present invention provides a washing tank housed in a housing with an open front so that it can be drawn out forward, a dish basket for supporting dishes provided in the washing tank, and The washing nozzle has a center nozzle extending upward at the center of the washing tank, and the dish basket has a lower basket disposed at the bottom of the washing tank. and an upper basket disposed in a portion adjacent to the center nozzle in one of the front and rear directions in the upper part of the cleaning tank, and a nozzle guard frame surrounding the center nozzle is erected on the lower basket. The car is curved in an arc shape in a plan view with the lateral central portion offset in one direction in the front-rear direction from the lateral side portions, and the upper car is divided into two laterally-one first segments. It has a basket part and a second split basket part on the other side in the horizontal direction, and each of the first and second split basket parts rises and falls between a use posture supporting tableware and a non-use posture standing upright in one of the front and back directions. a projecting portion projecting in the other direction in the front-rear direction is provided at a laterally inner end portion of a portion serving as the other end edge in the front-rear direction in the use posture of each of the first and second divided cages, The projection of each divided cage is seated on the upper end of the nozzle guard frame in the usage posture of each divided cage, and the projection of each of the first and second divided cages has a laterally inward facing side surface. In addition, a tapered portion that is inclined outward in the lateral direction is formed downward, or the protrusion of one of the first split basket portion and the second split basket portion is tapered laterally inward. The upper and lower sides of the facing side are formed with an upwardly laterally outwardly inclined upper tapered portion and a downwardly laterally outwardly inclined lower tapered portion .

According to the present invention, the projecting portion protruding from the inner end portion in the lateral direction of the portion that becomes the other end edge in the front-rear direction in the usage posture of each divided cage portion is seated on the upper end of the nozzle guard frame, so that the nozzle guard is secured. The end of each divided cage can be supported by the nozzle guard frame without increasing the diameter of the frame, and the supporting rigidity of each divided cage can be ensured. Therefore, it is possible to avoid narrowing the effective area of the lower basket capable of supporting tableware due to the increased diameter of the nozzle guard frame.

When the dishwasher is in use, the lower basket bends downward to some extent, the position of the upper end of the nozzle guard frame lowers, and the lateral direction of the part that becomes the other edge in the front-to-rear direction in the usage posture of each divided basket part. The inner end sinks downward under the load of tableware placed on each divided basket. Then, with repeated use, each divided cage may be plastically deformed such that the projection of the first divided cage and the projection of the second divided cage are brought into pressure contact with each other in the lateral direction. Therefore, when one of the divided cages is set up in the non-use posture and then put back into the usage posture, the projection of one of the divided cages interferes with the projection of the other divided cage that is in the usage posture. It may not be possible to smoothly fold down the split basket part to the use posture.

Therefore, in the present invention, as described above, the laterally inwardly facing side surfaces of the protrusions of the first and second divided cages are formed with tapered portions that are downwardly inclined laterally outwardly, Alternatively, upper and lower laterally inwardly facing side surfaces of the protrusion of one of the first and second divided cages have upper and lower tapers that are laterally outwardly slanted upward. and a lower tapered portion sloping laterally outwardly in a downward direction . According to the former , when one of the divided basket portions is tilted from the non-use posture to the use posture, even if the projection of one of the divided basket portions interferes with the projection of the other divided basket portion in the use posture, The interference between the projections is canceled by being guided by the tapered portion of the projection of the divided cage, and one of the divided cages can be smoothly tilted to the use posture.

Further, according to the latter , when one of the divided cage portions, for example, the one divided cage portion is tilted from the non-use posture to the use posture, the protrusion of the one divided cage portion is in the use posture. Even if it interferes with the projection of the cage, it is guided by the lower tapered part of the projection of one of the divided cages to cancel the interference between the projections, and the other divided cage can be used from the non-use posture. Even if the protrusion of the other divided basket part interferes with the protrusion of the one divided basket part in the use posture when the divided basket part is laid down to the posture, it is guided by the upper tapered part of the protrusion of the one divided basket part. Then, the interference between the protrusions is canceled. Therefore, one of the divided basket parts can be smoothly lowered to the use posture in the same manner as described above. Furthermore, in this case, the projections are in contact only at the portion between the upper taper portion and the lower taper portion, and the contact area between the projections is narrowed. It is possible to reduce the operating force required to raise the cage to the non-use posture.

1 is a cutaway side view of a dishwasher according to an embodiment of the present invention; FIG. The perspective view seen from diagonally above the washing tub of the dishwasher of the embodiment. FIG. 2 is a perspective view of the upper basket provided in the dishwasher of the embodiment, viewed diagonally from the rear and below. FIG. 2 is a perspective view of the upper basket of the dishwasher of the embodiment, viewed obliquely from the front and above. FIG. 2 is a perspective view of the upper basket viewed obliquely from the front and above in a state in which both the first and second divided basket portions of the upper basket provided in the dishwasher of the embodiment are in a non-use posture; Fig. 3 is a perspective view of the second divided basket portion of the upper basket of the dishwasher of the embodiment, viewed obliquely from the front and above, in a non-use posture; (a) Cross-sectional view of the main part of the first divided car section cut along the VIIa-VIIa line in FIG. 4 with the first divided car section in the unused posture, (b) Second divided car cut along the VIIb-VIIb line in FIG. Sectional drawing of the principal part in the state which made a non-use attitude|position. FIG. 5 is an enlarged front view of the protrusion viewed from the direction of arrow VIII in FIG. 4; 9 is an enlarged front view of a protrusion corresponding to FIG. 8 of another embodiment; FIG.

The dishwasher of the embodiment of the present invention shown in FIG. 1 is of a built-in type installed in a system kitchen. It has Inside the washing tank 2, a dish basket (to be described later) for supporting dishes is accommodated, and a washing nozzle 3 for injecting washing water toward the dish basket is provided. A front cover 21 for closing the front surface of the housing 1 is attached to the front surface of the cleaning tank 2 . A seal lid 11 is provided at the top of the housing 1 to close the open upper surface of the cleaning tank 2 .

At the bottom of the washing tank 2 , a washing water reservoir 23 is provided which communicates with the inside of the washing tank 2 via a leftover filter 22 . A cleaning pump 4 communicating with a reservoir 23 is installed below the bottom of the cleaning tank 2 . When the washing pump 4 is rotated forward, the washing water in the washing tank 2 is supplied to the washing nozzle 3 through the reservoir 23 and the washing pump 4, and when the washing pump 4 is reversed, the washing water is supplied to the washing nozzle 3. The washing tank 2 is designed to be drained.

The cleaning nozzle 3 includes a lower nozzle 31 that extends horizontally at the bottom of the cleaning tank 2 and is supported at the center in the longitudinal direction so as to be rotatable around the vertical axis, A center nozzle 32 extending upward is provided at the central portion of the cleaning tank 2 . The lower nozzle 31 jets cleansing water from a nozzle hole 311 formed therein, and is swirled by this jet reaction force. The center nozzle 32 is composed of a lower half portion 32a integrated with the lower nozzle 31 and an upper half portion 32b vertically movably inserted into the lower half portion 32a, and is vertically extendable. When washing water is supplied from the washing pump 4, the upper half 32b is pushed upward by the water pressure of the washing water as indicated by the phantom lines in FIG. 1, and the center nozzle 32 extends upward. Washing water is jetted from a nozzle hole 321 formed in the upper end portion of the lower half portion 32a and a nozzle hole 322 formed in the upper half portion 32b.

Also, as a tableware basket, a lower basket 5 for supporting relatively large tableware W1 such as a large plate, a small plate, a medium bowl, a bowl, etc., which is positioned above the lower nozzle 31 in the lower part of the washing tank 2, An upper basket 6 is arranged above the cleaning tank 2 and adjacent to the center nozzle 32 rearwardly. Further, the lower basket 5 is provided with a nozzle guard frame 51 surrounding the center nozzle 32 so as to prevent the tableware W1 placed thereon from interfering with the center nozzle 32 .

2 to 6, the upper basket 6 is made of synthetic resin and supported by a frame 61 made of a wire that is engaged with and supported by the upper wall surface of the cleaning tank 2. As shown in FIG. In addition, the upper car 6 is curved in a plan view circular arc shape in which the lateral center portion is offset rearward from the lateral side portions. The upper basket 6 further has two rows of tableware support portions 62 and 63, one on the front side near the center nozzle 32 and the other on the rear side distant from the center nozzle 32. A plurality of bottomed cylindrical tableware W2 represented by tea cups are arranged in the horizontal direction so that they can be supported. The tableware support portions 62 and 63 in each row can support the tableware W2 with the opening edges thereof facing downward, in a posture inclined in a direction away from the center nozzle 32 (rearward). It has opening receiving portions 621 and 631 for receiving, and peripheral wall receiving portions 622 and 632 for receiving the inclined direction side of the peripheral wall portion of the tableware W2, that is, the rear portion.

Here, the upper basket 6 is laterally divided into two from the opening receiving portion 621 of the tableware support portion 62 in the front row to the opening receiving portion 631 of the tableware support portion 63 in the rear row (the right side as viewed from the front). and a _{second divided} cage portion 62 on the other lateral side (left side as viewed from the front). In addition, the dividing position of both the first and second divided basket portions 6 ₁ and 6 ₂ is the lateral central portion in the opening receiving portion 621 of the tableware support portion 62 in the front row, but the peripheral wall of the tableware support portion 62 in the front row In the receiving portion 622 and the opening receiving portion 631 of the tableware support portion 63 in the rear row, the position is shifted to one side in the horizontal direction from the center portion in the horizontal direction. Moreover, the peripheral wall receiving portion 632 of the tableware support portion 63 in the rear row is not divided into two in the horizontal direction, and is separate from the first and second divided basket portions 6 ₁ and 6 ₂ .

The frame body 61 includes vertical rod portions 611, 611 on both sides in the horizontal direction extending in the front-rear direction, a first horizontal rod portion 612 on the front side and a second horizontal rod portion on the rear side, which straddles the rear portions of the vertical rod portions 611, 611. 613. Then, a pair of opening receiving portions 631 of the tableware supporting portion 63 in the rear row are positioned on both lateral sides of the portion to be the _first divided basket portion 61, and are rotatably engaged with the first horizontal rod portion 612. A pair of engaging portions 6 ₁ a, 6 ₁ a are provided vertically and are positioned on both lateral sides of the portion that will become the second divided basket portion 6 ₂ , and are rotatably engaged with the first horizontal bar portion 612 . _are provided _vertically . As a result, each of the first and second divided basket portions 6 ₁ and 6 ₂ is in the use posture shown in FIG. 4 in which tableware is supported, and the non-use posture shown in FIG. With the portion 612 as a fulcrum, it can be raised and lowered freely. Furthermore, as shown in FIG. 6, only the _second divided basket portion 62 can be raised in the unused posture, or only the _first divided basket portion 61 can be raised in the unused posture (not shown). On the other hand, the peripheral wall receiving portion 632 of the tableware support portion 63 in the rear row includes first engaging portions 633 on both sides in the horizontal direction that engage with the first horizontal rod portion 612 and lateral direction engaging portions that engage with the second horizontal rod portion 613 . A central second engaging portion 634 is provided vertically. Therefore, the peripheral wall receiving portions 632 of the tableware support portions 63 in the rear row are immovable with respect to the frame 61 .

_In addition, on laterally outer side edges 61b and 62b of _each of the _first and _second divided cage portions 61 and 62, _{each divided} cage portion 61 and 62 is laid down in the use posture. In some cases, the stopper portions 6 1 c and 6 2 c contact the front portions of the vertical rod portions 611 of the frame body 61 from above, and the stopper portions 6 ₁ c and 6 ₂ c are opposed to each other with a slight gap above the intermediate portions of the vertical rod portions 611 . Auxiliary stopper portions 6 ₁ d and 6 ₂ d are provided to protrude. Therefore, at the laterally outer ends of the divided basket portions 6 ₁ and 6 ₂ , the load of tableware placed on the divided basket portions 6 ₁ and 6 ₂ is applied to the respective stopper portions 6 ₁ c and 6 ₂ c. can be received by each vertical bar portion 611 through.

In addition, before the upper basket 6 and the frame 61 are mounted in the washing tank 2, the vertical bars 611 may be flexed so as to incline outward in the lateral direction toward the front. Due to this bending, the stopper portions _{6 1} c and _{6 2} c may come off from the front portions of the vertical rod portions 611. It abuts on the intermediate portion of the portion 611 . As a result, the divided basket portions 6 ₁ and 6 ₂ do not incline more downward than in the use posture, and it is possible to avoid interfering with the operation of attaching the upper basket 6 and the frame 61 to the cleaning tank 2 .

In addition, at the upper end of the peripheral wall receiving portion 622 of the tableware support portion 62 in the front row, the locking convex portion 6 ₁ e located in the laterally inward portion of the portion to be the first divided basket portion 6 ₁ and the second A locking convex portion 6 ₂ e positioned in a portion laterally inward of the portion to be the divided basket portion 6 ₂ is formed. Furthermore, at the upper end of the peripheral wall receiving portion 632 of the tableware support portion 63 in the rear row, a first fixed convex portion 635 at the same horizontal position as the locking convex portion 6 ₁ e of the first divided basket portion 6 ₁ and a second fixed convex portion 635 A _second fixing projection 636 is formed at the same horizontal position as the locking projection 62e of the _divided basket portion 62. As shown in FIG. When the _first divided basket portion _{6 1} is erected in the non-use posture, as shown in FIG. ₇ ( _b ), the engaging projections 62e of the _second cage division 62 get over the _second fixed projections 636 and are displaced rearward, so that the _second division cage 62 is in the non-use posture. It is designed to be locked.

In addition, the peripheral wall receiving portion 632 of the tableware support portion 63 in the rear row tends to be deformed so as to be curved more rearward during use. When such deformation occurs, the locking protrusions 6 ₁ e and 6 ₂ e of the first and second divided cage sections 6 ₁ and 6 ₂ are replaced by the first and second fixing protrusions 635 and 636 . It cannot be displaced rearward, and each of the divided cage parts 6 ₁ and 6 ₂ cannot be locked at the non-use position. Therefore, in the present embodiment, the peripheral wall receiving portion 632 of the tableware support portion 63 in the rear row is provided with a contact portion 637 which is located near the second fixed convex portion 636 and contacts the rear wall portion of the washing tank 2. Abutting portion 637 can prevent the peripheral wall receiving portion 632 of the tableware supporting portion 63 in the rear row from being deformed so as to be greatly curved backward.

In addition, the opening receiving portion 621 of the tableware support portion 62 in the front row has _a small upward projection 61 f positioned laterally inwardly of the portion to be the _first divided basket portion 61 and the second divided basket portion. A small upward projection 6 ₂ f located at the laterally inner end of the portion to be 6 ₂ is formed. Then, when only the _second divided basket portion 62 is erected in the non-use posture, the tableware placed on the _first divided basket portion 61 shifts laterally inward on the _first divided basket portion 61 and falls. In addition, when _only the _first divided basket portion 61 is erected in the non-use posture, the tableware to be placed on the _second divided basket portion 62 will be placed in the second divided basket portion. The small protrusion 6 ₂ f prevents the small projection 6 ₂ f from slipping laterally inward and falling on the 6 2 .

At the bottom of the laterally inner side edges _61g , 62g of _each of the _first and _second divided cage sections 61, 62, there is a downwardly laterally outwardly inclined tapered section ₆₁ . h, 6 ₂ h are formed. According to this, when the _first divided basket portion 61 is tilted from the unused posture to the used posture, the laterally inner side edge _61g of the _first divided basket portion 61 is in the used posture. Even if it interferes with the laterally inner side edge 6 ₂ g of the car portion 6 ₂ , this interference is canceled by the guiding action of the tapered portion 6 ₁ h, and similarly, the second divided car portion 6 ₂ is placed in the non-use posture. When the second divided basket portion 62 is tilted from the top to the use posture, the laterally inner side edge 62g of the _second divided basket portion 62 is brought into contact with the laterally inner _side edge _61g of the _first divided basket portion 61 in the used posture. Even if they interfere, this interference is canceled by the guiding action of the tapered portion 6 ₂ h.

By the way, when the first and second divided basket portions 6 ₁ and 6 ₂ are in the use posture, the laterally inner ends of the front portions of the respective divided basket portions 6 ₁ and 6 ₂ are attached to the frame body 61 . Because it is far from the tableware, it tends to sink downward under the load of tableware. In this case, the laterally inner end portions of the portions 6 ₁ i and 6 ₂ i that become the front edges of the divided cage portions 6 ₁ and 6 ₂ in the usage posture (hereinafter referred to as front end portions) are attached to the nozzle guard frames. It is conceivable to secure the supporting rigidity of each divided cage portion 6 ₁ , 6 ₂ by seating on the upper end of 51 . Here, if the upper car 6 is curved in an arc shape in plan view as in the present embodiment, the laterally inner end portions of the front end portions 6 ₁ i and 6 ₂ i of the divided car portions 6 ₁ and 6 ₂ position is considerably shifted rearward with respect to the center nozzle 32 . Therefore, unless the diameter of the nozzle guard frame 51 is increased, the laterally inner ends of the front end portions 6 ₁ i and 6 ₂ i of the divided cages 6 ₁ and 6 ₂ cannot be seated on the upper end of the nozzle guard frame 51 . . However, in this case, the effective area of the lower basket 5 capable of supporting tableware is narrowed due to the increased diameter of the nozzle guard frame 51 .

Therefore, in the present embodiment, projections 6 ₁ protruding forward are provided at the laterally inner ends of the front end portions 6 ₁ i and 6 ₂ i of the first and second divided basket portions 6 ₁ and 6 ₂ . j and 6 ₂ j are projected. 2, the protrusions 6 ₁ j and 6 ₂ j of the divided cage portions 6 ₁ and 6 ₂ are seated on the upper end of the nozzle guard frame 51 in the usage posture of the divided cage portions 6 ₁ and 6 ₂ . I am trying to According to this, even if the diameter of the nozzle guard frame 51 is not increased, the laterally inner end portions of the front end portions 6 ₁ i and 6 ₂ i of the divided cage portions 6 ₁ and 6 ₂ can be moved to the respective projecting portions 6 ₁ . The nozzle guard frame 51 can support the divided cage portions 6 ₁ and 6 ₂ via the j and 6 ₂ j, and the support rigidity of each of the divided cage portions 6 1 and 6 2 can be ensured. Therefore, it is possible to prevent the effective area of the lower basket 5 capable of supporting tableware from being narrowed due to the increased diameter of the nozzle guard frame 51 .

When the dishwasher is in use, the lower basket 5 is bent downward to some extent, the position of the upper end of the nozzle guard frame 51 is lowered, and the front end portions 6 ₁ i and 6 ₂ of the divided basket portions 6 ₁ and 6 ₂ are lowered. The laterally inner end of i sinks downward under the load of tableware placed on each of the divided basket portions 6 ₁ and 6 ₂ . Each of the _divided basket portions _{6 1} , 6 ₁ , 6 1 , 6 1 , 6 1 , and 6 1 , 6 1 , 6 1 , and 6 1 , 6 1 , and 6 1 , 6 1 , 6 1 , 6 1 , 6 1 , 6 ₁ , ₆₂ may undergo plastic deformation. Therefore, when one of the divided basket portions, for example, the first divided basket portion 6 ₁ is raised to the non-use posture and then tilted back to the use posture, the protrusion 6 ₁ j of the first divided basket portion 6 ₁ is in the use posture. It may interfere with the protrusion _62j of the _second divided basket portion 62, preventing the _first divided basket portion 61 from being smoothly lowered to the use posture.

Therefore, in the present embodiment, one of the first divided cage portion 6 ₁ and the second divided cage portion 6 ₂ , for example, the lateral direction inner side of the projection 6 ₁ j of the first divided cage portion 6 ₁ At the top and bottom of the side facing the , there is an upper laterally outwardly tapered portion 6 ₁ k upwards and a lower laterally outwardly tapered portion downwardly, as best seen in FIG. 6 ₁ l. According to this, when the _first divided basket portion 61 is tilted from the non-use posture to the use posture, the protrusions _61j of the _first divided basket portion 61 are aligned with the _second divided basket portion 62 in the use posture. Even if the projection 6 ₂ j interferes, it is guided by the lower tapered portion 6 ₁ l of the projection 6 ₁ j of the first divided basket portion 6 ₁ to cancel the interference between the projections 6 ₁ j and 6 ₂ j. be. Further, when the _second divided basket portion 62 is tilted from the non _- use posture to the use posture, the projection portion _62j of the _second divided basket portion 62 is in the use posture. ₁ j, the interference between the protrusions 6 ₁ j and 6 ₂ j is canceled by being guided by the upper tapered portion 6 ₁ k of the protrusion 6 ₁ j of the first divided car portion 6 ₁ . Therefore, only one of the _first divided basket portion 61 and the _second divided basket portion 62 can be smoothly laid down to the use posture from the state in which it is raised in the non-use posture.

In addition, as shown in FIG. 9, on the laterally inward side surfaces of the protrusions 6 ₁ j and 6 ₂ j of the first and second divided cage portions 6 ₁ and 6 ₂ , laterally outwardly facing downwards. Tapered portions 6 ₁ m and 6 ₂ m may be formed that are inclined in the opposite direction. According to this, when the _first divided basket portion 61 is tilted from the non-use posture to the use posture, the protrusions _61j of the _first divided basket portion 61 are aligned with the _second divided basket portion 62 in the use posture. Even if it interferes with the protrusion 6 ₂ j, it is guided by the tapered portion 6 ₁ m of the protrusion 6 ₁ j of the first divided cage 6 ₁ to cancel the interference between the protrusions 6 ₁ j and 6 ₂ j , Further, when the _second divided basket portion 62 is tilted from the non _- use posture to the use posture, the projection portion _62j of the _second divided basket portion 62 is in the use posture. Even if it interferes with ₁ j, it is guided by the tapered portion 6 ₂ m of the projection 6 ₂ j of the second divided cage portion 6 ₂ to cancel the interference between the projections 6 ₁ j and 6 ₂ j. Therefore, even in this case, only one of the _first divided basket portion 61 and the _second divided basket portion 62 can be smoothly laid down from the state in which it is raised in the non-use posture to the use posture.

However, in the case shown in FIG. 9 , taper portions 6 ₁ m and 6 ₂ m are formed only at the lower portions of the laterally inward side surfaces of both protrusions 6 ₁ j and 6 ₂ j , and the protrusions 6 ₁ j and 6 2 j The contact area between 6 ₂ j becomes wider. Therefore, when the protrusions 6 ₁ j and 6 ₂ j are brought into pressure contact with each other, a relatively large operating force is required to raise one of the divided car parts to the non-use posture. On the other hand, in the case shown in FIG. 8 , the projections _{6 1} j and 6 ₂ j are in contact with each other only at the portion between the upper taper portion 6 ₁ k and the lower taper portion 6 ₁ l. , 6 ₂ j is narrowed. Therefore, even if the protrusions 6 ₁ j and 6 ₂ j are pressed against each other, it is possible to reduce the operating force required to raise one of the divided basket parts to the non-use posture. As shown by the phantom lines in FIG. 9, tapered portions 6 ₁ m and 6 ₂ inclined laterally outward are provided on the laterally inward side surfaces of both protrusions 6 ₁ j and 6 ₂ j. The contact area between the projections 6 ₁ j and 6 ₂ j can be narrowed by forming m so as to reach the upper part of the side surface.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited thereto. For example, in the above-described embodiment, the upper cage 6 is arranged rearwardly adjacent to the center nozzle 32, but the present invention can also be applied to an arrangement in which the upper cage is arranged forwardly adjacent to the center nozzle 32. Invention can be applied. In this case, the upper cage is curved in an arc shape in a plan view with the horizontal center portion offset forward from the horizontal side portions, and the portion that becomes the rear edge in the usage posture of each divided cage portion is laterally curved. Projections that protrude rearward are provided on the inner ends so that each projection is seated on the upper end of the nozzle guard frame 51 in the usage posture of each divided cage.

REFERENCE SIGNS LIST 1 housing 2 washing tank 3 washing nozzle 32 center nozzle 5 lower cage 51 nozzle guard frame 6 upper cage 6 ₁ first divided cage 6 ₂ second division Basket portions 6 ₁ i, 6 ₂ i ... Front end portions of each divided cage portion (parts that become the other edges in the front-rear direction in the usage posture), 6 ₁ j, 6 ₂ j ... Protrusions, 6 ₁ k ... Upper tapers part, 6 ₁ l... lower taper part, 6 ₁ m, 6 ₂ m... taper part.

Claims (2)

A dishwashing machine comprising a washing tank that is stored in a housing with an open front so that it can be pulled out forward, a dish basket that supports dishes and is provided in the washing tank, and a washing nozzle that is provided in the washing tank. The washing nozzle has a center nozzle that extends upward in the central part of the washing tank, and the dish basket is a lower basket arranged in the lower part of the washing tank and an upper part of the washing tank that is positioned at the center. An upper cage is arranged adjacent to the nozzle on one side in the front-to-rear direction, and a nozzle guard frame surrounding the center nozzle is erected on the lower cage. For those curved in a plan view arc shape offset in one direction in the front-rear direction,
The upper basket is divided into two parts in the horizontal direction, and has a first divided basket part on one side and a second divided basket part on the other side. It can be raised and lowered between a supported use posture and a non-use posture where it is raised in one of the front and back directions,
A projecting portion projecting in the other direction in the front-rear direction is provided at a laterally inner end portion of a portion which becomes the other end edge in the front-rear direction in the usage posture of each of the first and second divided car portions. In the usage posture of , make sure that the protrusions of each divided cage are seated on the upper end of the nozzle guard frame ,
A dish washer characterized by the fact that laterally inwardly directed side surfaces of projections of each of the first and second divided baskets are tapered downwardly and laterally outwardly . A dishwashing machine comprising a washing tank that is stored in a housing with an open front so that it can be pulled out forward, a dish basket that supports dishes and is provided in the washing tank, and a washing nozzle that is provided in the washing tank. The washing nozzle has a center nozzle that extends upward in the central part of the washing tank, and the dish basket is a lower basket arranged in the lower part of the washing tank and an upper part of the washing tank that is positioned at the center. An upper cage is arranged adjacent to the nozzle on one side in the front-to-rear direction, and a nozzle guard frame surrounding the center nozzle is erected on the lower cage. For those curved in a plan view arc shape offset in one direction in the front-rear direction,
The upper basket is divided into two parts in the horizontal direction, and has a first divided basket part on one side and a second divided basket part on the other side. It can be raised and lowered between a supported use posture and a non-use posture where it is raised in one of the front and back directions,
A projecting portion projecting in the other direction in the front-rear direction is provided at a laterally inner end portion of a portion which becomes the other end edge in the front-rear direction in the usage posture of each of the first and second divided car portions. In the usage posture of , make sure that the protrusions of each divided cage are seated on the upper end of the nozzle guard frame,
an upper tapered portion slanted laterally outward toward the upper portion and the lower portion of the laterally inwardly facing side surface of the protrusion of one of the first divided cage portion and the second divided cage portion; , and a lower tapered portion sloping laterally outwardly toward the lower side.

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