JP4240782B2 - dishwasher - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dishwasher for cleaning dishes by spraying washing water from a washing nozzle toward the dishes.
[0002]
[Prior art]
2. Description of the Related Art In recent years, dishwashers that wash tableware stored in a tableware basket with washing water sprayed from a nozzle that rotates in a washing tank have become mainstream.
[0003]
Conventionally, this type of dishwasher has been configured as shown in FIG. Hereinafter, the configuration will be described.
[0004]
As shown in FIG. 4, the outer box 1 has an opening on the front side, and a first rail 2 is fixed to both the left and right inner surfaces, and a second rail 3 that engages with the first rail 2 is provided. The cleaning tank 4 provided on both the left and right outer surfaces is supported so as to be movable in the front-rear direction. The cleaning tank 4 has an opening 5 on the upper side and is provided with a door 6 on the front side to open and close the opening of the outer box 1.
[0005]
A lid 8 is supported above the inside of the outer box 1 through four links 7 so as to be movable in the front-rear direction. One link 7 is provided on each of the front, rear, left, and right, and the rotation center shaft side hole 9 is slidably engaged with the shaft provided on the outer box 1, and the rotation side hole 10 is provided on the lid 8. Are slidably engaged with each other. The lid 8 is connected to the outer box 1 by an elastic body 11 and biased upward and forward, and the opening 5 of the washing tank 4 is covered with the lid 8 while the washing tank 4 is pushed into the outer box 1 and accommodated. It is configured to be closed by.
[0006]
Further, the cleaning tank 4 has a locking mechanism 12 in the front, and is configured to be locked to the outer box 1 in the housing completed state in the outer box 1. Further, the cleaning tank 4 has a protruding portion 13 on the rear side, and this protruding portion 13 is in a positional relationship capable of coming into contact with the pressed portion 14 protruding downward on the rear side of the lid body 8. At the time of accommodation, the cover 8 is configured to be pushed backward by the protrusion 13.
[0007]
A cleaning nozzle 15 for jetting cleaning water is rotatably provided in the cleaning tank 4, and a tableware basket 17 for setting tableware 16 is disposed. The cleaning water in the cleaning tank 4 is heated by the heater 18, sucked from the drain port 20 by the cleaning pump 19, and pumped to the cleaning nozzle 15. The tableware 16 set in the tableware basket 17 is cleaned by the cleaning water sprayed from the cleaning nozzle 15 vigorously.
[0008]
In the above configuration, the operation will be described. When the tableware 16 is set in the tableware basket 17 in the washing tank 4 and the washing tank 4 is accommodated in the outer box 1, when the washing tank 4 is pushed and moved rearward, it eventually protrudes. When the portion 13 comes into contact with the pressed portion 14 of the lid body 8 and the cleaning tank 4 is pushed backward, the lid body 8 is pushed backward. At this time, the link 7 rotates, and the lid body 8 moves on the rotation locus of the link 7, and thus moves downward while moving backward.
[0009]
Furthermore, when the washing tank 4 moves rearward, the front opening of the outer box 1 is closed by the door 6 and is locked by the locking mechanism 12. At this time, the lid 8 is lowered to the height of the opening 5 of the cleaning tank 4 and the housing of the cleaning tank 4 is completed. At the same time, the opening 5 of the cleaning tank 4 is closed by the lid 8 and the cleaning water in operation Prevents steam leakage.
[0010]
[Problems to be solved by the invention]
In such a conventional dishwasher, the position of the lid 8 in the front-rear direction is restricted by the locking mechanism 12 and the protruding portion 13, and since the distance L1 between the two points is long, there is no absolute variation in manufacturing. When the value is large and the distance L1 is shorter than a predetermined value, the amount of rearward movement of the lid body 8 is reduced, and the blocking property between the cleaning tank 4 and the lid body 8 is deteriorated. It was.
[0011]
Further, when the cleaning tank 4 is made of resin, the amount of secular change due to heat shrinkage is larger as the distance L1 is longer, and thus there is a problem that the blocking property between the cleaning tank 4 and the lid body 8 is similarly reduced.
[0012]
The present invention solves the above-mentioned conventional problems, and reduces the influence of dimensional variation in manufacturing or the amount of secular change due to thermal shrinkage, and the cleaning tank and lid when the cleaning tank is pushed into the outer box and accommodated. The purpose is to provide a highly reliable dishwasher with a stable blockage.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the present invention supports a cleaning tank having an opening on the upper side so as to be movable in the front-rear direction in the outer box, and holds the state in which the cleaning tank is pushed into the outer box by a locking mechanism. The lid that closes the opening of the cleaning tank is configured to be urged forward and upward by an elastic body. The cleaning tank is provided with a protrusion, and when the cleaning tank is accommodated, the protrusion is provided in the vicinity of the locking mechanism. The lid is pushed backward, the lid is moved against the urging force of the elastic body, and the opening of the cleaning tank is closed.
[0014]
As a result, the distance between the position where the lid is pushed by the protruding portion of the cleaning tank and the locking mechanism can be set short, and the influence of dimensional variations in manufacturing or the amount of secular change due to thermal shrinkage can be reduced. The obstruction | occlusion property of a washing tank and a cover body when pushing and accommodating in a box can be ensured stably, and a highly reliable dishwasher can be provided.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention accommodates a cleaning tank having an opening on the upper side, an outer box that supports the cleaning tank so as to be movable in the front-rear direction, and the cleaning tank that is pushed into the outer box. a locking mechanism for holding the state, said a lid for closing the opening of the cleaning tank, the lid member and an elastic member for urging the front and above, the collision detecting section near the center of the front of the cleaning tank A pressing portion is provided at a position where the protruding portion abuts on the end surface of the lid, and the pressing portion is configured to have a concave shape so as to be narrowed toward the rear, and when the cleaning tank is accommodated, In the vicinity of the mechanism, the protrusion is pushed backward by the protrusion, the cover is moved against the urging force of the elastic body, and the opening of the cleaning tank is closed. Because the distance between the position where the lid is pushed by the protruding part of the tank and the locking mechanism is set short, The absolute value of dimensional variations in manufacturing can be kept small, and the amount of secular change due to heat shrinkage can be reduced even in the case of a resin cleaning tank. As a result, the cleaning tank is pushed into the outer box and accommodated. At this time, the lid body can be stably moved rearward and downward, and the blocking property between the washing tank and the lid body can be stably secured, and a highly reliable dishwasher can be provided. Further, because each other is brought into contact with the vicinity of the center of the cleaning tank and the lid body, it is possible to prevent the inclination of the lid by lateral deviation of the timing of the contact that may occur when brought into contact with the left and right And a more reliable dishwasher can be provided. In addition, the position of the cleaning tank and the lid in the left-right direction can be regulated before or after the protrusion of the cleaning tank abuts against the pressed portion of the lid, so that more reliable A high dishwasher can be provided. Moreover, the positional relationship of the left-right direction with a cover body can be controlled, moving a washing tank back.
[0016]
The invention according to claim 2 is the invention according to claim 1, wherein the locking mechanism is provided in the front part of the cleaning tank, and the blockage between the cleaning tank and the lid is stably secured. In addition, since the locking mechanism can be made compact, a highly reliable and inexpensive dishwasher can be provided.
[0017]
【Example】
Embodiments of the present invention will be described below 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.
[0018]
Example 1
As shown in FIG. 1, the cleaning tank 21 includes a second rail 3 provided on both left and right outer surfaces, and a first rail that is engaged with the second rail 3 and fixed to both left and right inner surfaces of the outer box 22. 2, the outer case 22 is supported so as to be movable in the front-rear direction. The cleaning tank 21 has an opening 23 on the upper side, and a door 24 is provided in front of the cleaning tank 21 so as to open and close the opening of the outer box 22.
[0019]
The lid body 25 is supported above the inside of the outer box 22 via the four links 7 so as to be movable in the front-rear direction. The lid body 25 is connected to the outer box 22 by the elastic body 11 and attached to the upper front side. The opening 23 of the cleaning tank 21 is configured to be closed by the lid 25 in a state where the cleaning tank 21 is pushed into and accommodated in the outer box 22.
[0020]
The cleaning tank 21 has a locking mechanism 26 in the front, and is configured to be locked to the outer box 22 in a state where the storage is completed in the outer box 22. Further, the cleaning tank 21 has a protruding portion 27 protruding upward on the upper side near the front center, and this protruding portion 27 is in a positional relationship capable of contacting the front end face 28 of the lid 25. At the time of storage, the lid body 25 is pushed rearward by the protruding portion 27 in the vicinity of the locking mechanism 26. In addition, let the left side of FIG. 1 be the front, and let the right side be back.
[0021]
In the above configuration, the operation will be described. When the tableware 16 is set in the tableware basket 17 in the cleaning tank 21 and the cleaning tank 21 is accommodated in the outer box 22, if the cleaning tank 21 is pushed backward and moved, it eventually protrudes. The portion 27 comes into contact with the front end face 28 of the lid body 25 and further pushes the cleaning tank 21 backward, whereby the lid body 25 is pushed backward. At this time, the link 7 rotates, and the lid body 25 moves on the rotation locus of the link 7, and therefore moves downward while moving backward.
[0022]
When the cleaning tank 21 further moves rearward, the lid 25 is lowered to the height of the opening 23 of the cleaning tank 21, and at the same time as the housing of the cleaning tank 21 is completed, the opening 23 of the cleaning tank 21 is closed by the lid 25. To do. By operating the locking mechanism 26 in this state, the cleaning tank 21 is locked in the outer box 22.
[0023]
For this reason, the position of the locking mechanism 26 that determines the position of the cleaning tank 21 with respect to the outer box 22, and the contact position of the protrusion 27 that determines the position of the lid 25 with respect to the cleaning tank 21 and the front end surface 28 of the lid 25. And the absolute value of the manufacturing variation of the distance L2 can be kept small. Therefore, the lid 25 is stably moved rearward and downward to block the cleaning tank 21 and the lid 25. Can be ensured stably.
[0024]
Further, even when the cleaning tank 21 is made of resin, the amount of secular change due to the thermal contraction of the distance L2 can be suppressed, and similarly, the blocking property between the cleaning tank 21 and the lid body 25 can be stably secured. In addition, since the cleaning tank 21 and the lid body 25 are brought into contact with each other in the vicinity of the center of each other, tilting of the lid body due to a shift in the timing of the left and right contact that may occur when the left and right are brought into contact is prevented. be able to.
[0025]
In addition, by providing the locking mechanism 26 in the front, the door 24 and the means for locking the outer box 22 can be integrated into a compact structure, and therefore, an inexpensive and more reliable dishwasher is provided. Can do.
[0026]
Moreover, since the protrusion part 27 which protruded upwards is provided in the center vicinity ahead of the washing tank 21, in order to make the washing tank 21 and the cover body 25 contact each other near the center, The lid 25 can be prevented from tilting due to a shift in the timing of the left and right contact that may occur, and a more reliable dishwasher can be provided.
[0027]
(Example 2)
As shown in FIG. 2, the washing tub 21a arranges the tableware basket 17 in which the tableware 16 is set, and supports the outer box 22a having an opening on the front side so as to be movable in the front-rear direction. Protrusions 29 projecting upward are provided in the vicinity of the left and right ends in front of the cleaning tank 21a, and the projecting parts 29 are formed with a front end face 28a of a lid 25a configured to close the opening above the cleaning tank 21a. It is in a positional relationship where it can abut. Other configurations are the same as those of the first embodiment. In addition, let the left side of drawing be a front, and let the right side be back.
[0028]
Describing the operation in the above configuration, when the user sets the tableware 16 in the tableware basket 17, the range through which the user's flow line passes is mainly the range of the side a on the front side of the cleaning tank 21a. Since the protrusion 29 is provided outside the range, it does not become an obstacle when the user sets the tableware 16, so that a dishwasher with better usability can be provided.
[0029]
In this embodiment, the protrusions 29 protruding upward are provided in the vicinity of the left and right ends in front of the cleaning tank 21a. However, the protrusions 29 may be provided in the vicinity of at least one of the left and right ends of the cleaning tank 21a. Well, the same effect can be obtained.
[0030]
(Example 3)
As shown in FIG. 2, the washing tub 21b arranges the tableware basket 17 in which the tableware 16 is set, and supports the outer box 22b having an opening on the front side so as to be movable in the front-rear direction. A protrusion 30 protruding upward is provided on the upper front side of the cleaning tank 21b, and the protrusion 30 is provided on the front end surface 28b of the lid 25b configured to close the opening above the cleaning tank 21b. The positional relationship is such that it can come into contact with the pressing portion 31. The pressed portion 31 has a concave shape toward the rear, and the groove width t <b> 1 is formed to be slightly larger than the thickness t <b> 2 of the protruding portion 30. Other configurations are the same as those of the first embodiment. In addition, let the left side of drawing be a front, and let the right side be back.
[0031]
When the cleaning tank 21b is accommodated in the outer box 22b in the above configuration, the cleaning tank 21b moves rearward and eventually pushes backward after the protruding portion 30 contacts the pressed portion 31. As a result, the lid 25b is pushed backward. At this time, since the protruding portion 30 is immersed in the groove portion 32 of the pressed portion 31, it is possible to prevent the horizontal displacement between the cleaning tank 21b and the lid body 25b. As a result, it is possible to stably ensure the closing property between the cleaning tank 21b and the lid body 25b.
[0032]
Further, if the groove width t1 is configured to be narrowed rearward, the positional relationship in the left-right direction with the lid body 25b can be regulated while the cleaning tank 21b moves rearward. Similarly, the cleaning tank 21b and the lid Since the obstruction | occlusion property with the body 25b can be ensured stably, a more reliable dishwasher can be provided.
[0033]
【The invention's effect】
As described above, according to the first aspect of the present invention, the cleaning tank having the opening at the top, the outer box that supports the cleaning tank so as to be movable in the front-rear direction, the cleaning tank A locking mechanism that holds the state pushed into the box, a lid that closes the opening of the cleaning tank, and an elastic body that biases the lid forward and upward . the collision detecting section provided near the center, a pressed portion provided at a position where the protruding portion at the end face of the lid comes into contact, the pressed portion is configured in a concave shape so as to be narrower toward the rear, of the washing tub A structure that pushes the lid backward by the protruding portion in the vicinity of the locking mechanism at the time of housing, moves the lid against the urging force of the elastic body, and closes the opening of the cleaning tank; The distance between the position where the lid is pushed by the protruding part of the cleaning tank and the locking mechanism is shortened. Therefore, the absolute value of dimensional variation in manufacturing can be kept small, and the amount of secular change due to thermal shrinkage can be reduced even in the case of a resin cleaning tank. When pushed into the box and housed, the lid can be moved rearward and downward stably, the obstruction between the washing tank and the lid can be stably secured, and a highly reliable dishwasher Can be provided. In addition, since the cleaning tank and the lid are brought into contact with each other in the vicinity of the center, it is possible to prevent the tilt of the lid due to a shift in the timing of the left and right contact that may occur when the contact is made on the left and right. Can provide a more reliable dishwasher. In addition, the position of the cleaning tank and the lid in the left-right direction can be regulated before or after the protrusion of the cleaning tank abuts against the pressed portion of the lid, so that more reliable A high dishwasher can be provided. Moreover, the positional relationship of the left-right direction with a cover body can be controlled, moving a washing tank back.
[0034]
Further, according to the invention described in claim 2, since the locking mechanism is provided in the front part of the cleaning tank, it is possible to stably ensure the closing property between the cleaning tank and the lid, and the locking mechanism. A compact dishwasher can be provided because it can be made compact.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a dishwasher according to a first embodiment of the present invention. FIG. 2 is a transverse sectional view of a dishwasher according to a second embodiment of the present invention with a washing tub drawn out. Cross-sectional view in the middle of pushing in the washing tub of the dishwasher of the third embodiment of the invention [Fig. 4] Vertical cross-sectional view of a conventional dishwasher [Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Elastic body 21 Cleaning tank 22 Outer box 23 Opening part 25 Cover body 26 Locking mechanism 27 Protrusion part

Claims (2)

A resin-made washing tank having an opening on the upper side, an outer box that supports the washing tank so as to be movable in the front-rear direction, a locking mechanism that holds the washing tank pushed into the outer box, and a holding mechanism. a lid for closing the opening of the cleaning tank, and an elastic member for biasing the lid member in the front and above, the collision detecting portion provided in the vicinity of the center of the front of the cleaning tank, at the end face of the lid A pressed portion is provided at a position where the protruding portion abuts, and the pressed portion is configured to have a concave shape so as to be narrowed rearward. A dishwasher configured to push the lid backward, move the lid against the urging force of the elastic body, and close the opening of the washing tub.   The dishwasher according to claim 1, wherein a locking mechanism is provided at a front portion of the washing tank.

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