JP4831756B2 - Pull-out dishwasher - Google Patents

Description

  The present invention relates to a drawer-type dishwasher, and more particularly to a centering mechanism that automatically adjusts the position of the lid body in the left-right direction with respect to the washing tub. In relation to the dishwasher in which the lid moves up and down against the lid spring in conjunction with this, and the washing tub is opened and closed, the lid and the washing tub are displaced due to the lateral displacement of the lid relative to the washing tub. This prevents the sealing performance from deteriorating.

  The cleaning tank is supported by the left and right rails provided on the bottom of the cleaning machine body, and the lid is supported by the cleaning tank body so that it moves up and down in conjunction with the loading and unloading operation of the cleaning tank. There is one in which the packing contacts the upper edge surface of the cleaning tank and seals between the lid and the cleaning tank.

  Then, four parallel links (front, rear, left and right) are used as a support mechanism for the lid, and the lid is urged forward by a return spring (opening spring). There is one that pushes a flange provided at the end downward, moves the lid backward against the return spring, and moves it diagonally downward with the parallel link to close the lid (Japanese Patent No. 3789775). (See FIG. 15).

  Also, the center of the wire spring, which is an open spring, is attached to the main body of the washing machine, the lid is supported at both front and rear ends, the inclined cam on the outer surface of the washing tank and the cam roller on the outer part of the lid, There is one in which the inclined cam and the cam roller are brought into contact with each other by the pushing operation and a cam action is produced, and the lid is pulled down against the wire spring by this cam action (Japanese Patent No. 3789775). The outline of the latter configuration is as shown in FIGS. 8, 9, and 10, and the washing tank 202 is supported by the left and right rails R on the bottom of the washing machine body 201 so as to be freely inserted and removed.

The central portion of the wire spring 204 is locked to the side wall surface of the cleaning machine body 201, and the lid 203 is supported by the front and rear ends 204 a and 204 a of the wire spring 204.
The cleaning machine main body 201 has a guide roller 201 a, the support plate 205 provided on the left and right sides of the lid 203 has a vertical slot 205 a, and the guide roller 201 a is fitted in the vertical slot 205 a, so that the lid 203 Guides up and down movement.

Inclined cams 211 are provided on the front, rear, left and right of the cleaning tank 202, and cam rollers 231 facing the cams 231 are provided on the front and rear of the left and right support plates 205 of the lid 203.
When the cleaning tank 202 is pushed in, the cam roller 231 comes into contact with the inclined cam surface 211a of the inclined cam 211 and is pushed down at the final stage of the pushing operation. As a result, the lid 203 is pulled down, the packing p abuts against the upper edge surface of the cleaning tank 202, and the cleaning tank is sealed.

In the background art, the packing p is fixed to the lower surface of the lid, and when the lid is closed, the packing p abuts on the upper edge surface of the cleaning tank to seal between the lid body and the upper edge surface of the cleaning tank. However, if the packing p is greatly displaced in the left-right direction with respect to the upper edge surface of the cleaning tank 202 due to assembly error, distortion of the cleaning machine main body, etc., the sealing performance by the packing p deteriorates, and steam leakage, water leakage Will result.
The cleaning tank 202 is supported on the bottom surface of the cleaning machine main body 201 by the rail R, and the lid 203 is supported on the cleaning machine main body by a parallel link, a wire spring, or the like, so that the cleaning machine main body 201 of the cleaning tank is supported. Due to the assembly error in the horizontal direction with respect to the lid and the assembly error of the lid with respect to the washing machine body, the lateral displacement between the lid body and the washing tank occurs, and the washing machine body is deformed due to inadequate handling during transportation and installation, and processing variations Similarly, a displacement in the left-right direction also occurs due to deformation of the cleaning tank due to thermal degradation or the like.

[Prior art 1]
By the way, an invention for adjusting the positional deviation of the lid with respect to the cleaning tank in the left-right direction is already known, and an example thereof is described in Japanese Patent No. 3275858. This known example is provided with a centering mechanism (position adjustment mechanism) in the left-right direction with respect to the washing machine main body of the washing tank, and the centering mechanism works by the pushing operation of the washing tank. Direction alignment is performed. However, this is to adjust the lateral displacement of the lid relative to the washing tank body by adjusting the lateral displacement of the washing tank relative to the washing machine body. Since there is no function to directly adjust the misalignment with respect to the main body, as a practical matter, the misalignment of the cleaning tank in the horizontal direction with respect to the main body of the washing machine is not eliminated, and therefore the accuracy of alignment of the lid with respect to the cleaning tank is low. Inevitable.

[Prior art 2]
In addition, as an invention aimed at preventing a lateral displacement between the lid and the cleaning tank, a lateral centering mechanism (position adjusting mechanism) for the cleaning tank of the lid is provided, and the cleaning tank is pushed in. It is also known that the centering mechanism operates to perform the horizontal alignment of the lid body with respect to the cleaning tank (Japanese Patent Nos. 3417352 and 3417353). Since this is for directly adjusting the position of the lid with respect to the cleaning tank, the positioning accuracy of the lid with respect to the cleaning tank is high. An example of this prior art (prior art 2) is shown in FIGS.

  This prior art 2 is of a type in which a lid 103 having a packing on its lower surface is supported on the washing machine main body 101 by a parallel link 104. Then, when the washing tank 102 is pushed in, the dish 103 is pushed down by the parallel link 104 while pushing the flange 103a projecting from the lower surface of the lid 103 at the rear end pressing portion 102a and retreating the lid 103 against the return spring 103s. The machine is provided with a centering mechanism.

  The prior art centering mechanism is provided with the first guides 102b at the left and right ends in front of the cleaning tank 102 and the second guides 103b at the left and right ends in front of the lid 103. When the tank 102 is pushed in, the first guide 102b comes into contact with the second guide 103b of the lid 103 from the inside, and the lid 103 is moved in the left-right direction (the direction in which the displacement is adjusted) by the amount displaced in the left-right direction. ) To adjust the horizontal position with respect to the washing tank (centering). Then, in the vicinity of the end point of the pushing operation of the cleaning tank, the pressing portion 102a comes into contact with and presses the flange 103a, and the lid 103 is pushed down by the parallel link 104 to close the lid.

The above is the outline of the prior art 2, but in this case, the first guide 102b and the second guide 103b come into contact with each other and rub against each other during the subsequent closing operation. The frictional force between the first guide and the second guide acts as a resistance from before the closing of the pushing operation to the completion of the closing. If the lateral displacement of the lid with respect to the cleaning tank is large, the frictional force becomes a large resistance to the pushing operation of the washing tank, and the smoothness of the pushing operation is impaired.
Japanese Patent No. 3789775 Japanese Patent No. 3275858 Japanese Patent No. 3417352 Japanese Patent No. 3417353

The reason for adjusting the position of the lid in the left-right direction with respect to the cleaning tank (centering) is to bring the packing into contact with the predetermined position of the cleaning tank in the closed state. It is not necessary to be performed in the latter stage (final stage), and by doing so, it is possible to suppress resistance to the pushing operation of the cleaning tank.
On the other hand, if the position adjustment is performed at a later stage of the lid closing operation, the packing on the lower surface of the lid comes into contact with the upper edge surface of the cleaning tank, and the position adjusting force acts on the lid even after being strongly compressed. In such a case, the packing may be greatly distorted by receiving an excessive force, and the sealing performance of the packing may be lowered and the durability thereof may be impaired.

According to the present invention, the centering (position adjustment in the left-right direction) of the lid body with respect to the cleaning tank is performed at the final stage of the closing operation with respect to the above-described prior art. So that the smoothness of the push-in operation is not impaired,
Further, it is an object of the present invention to prevent an excessive position adjusting force from acting on the lid body in a state where the packing on the lower surface of the lid body is in contact with the cleaning tank and is compressed.

Means for solving the above problems, the washing tank is out freely supported in the longitudinal direction to the cleaning machine body through the rail, the cover having a packing to the lower surface is supported vertically movably on the washer body cage, given the pull-out dishwashing machine against the lid opening spring in conjunction with the pushing operation of the cleaning tank adapted to closing lowers the said lid, the following (a) to (e ) .
(B) the lower surface of the front or rear cam recess to the right and left of the lid (or cam protrusions) has,
(B) cam convex portions on the right and left of the front or rear of the upper surface of the cleaning tank (or cam recess) has,
(C) a cam recess of the lid (or the cam protrusion), and the cam protrusions of the cleaning tank (or the cam recess), when the lid is lowered, fits the cam projections on the cam recess It has a cam surface that moves the lid in the left-right direction with respect to the upper edge surface of the cleaning tank ,
(D) the cam protrusion has elasticity in the lateral direction, which deforms elastically when subjected to a predetermined force or more in the horizontal direction,
( E) The closing operation is started at the final stage of the pushing operation of the cleaning tank, and the cam convex part starts to be fitted into the cam concave part at the final stage of the closing operation, and the lateral direction of the lid body with respect to the cleaning tank When the adjustment of the position is started, after that, the packing of the lid is brought into contact with and pressed against the upper edge surface of the cleaning tank, and the cam convex portion is elastically deformed by receiving a predetermined force in the left-right direction. The cam convex part and the cam concave part act so that the adjustment of the position of the lid in the left-right direction is restricted .

[Action]
When the washing tank is pushed in, the closing operation of the washing tank is started after the final stage of the pushing operation.
For example, in the case where the lid is supported by the washing machine main body with a parallel link, the lid is pushed backward in the washing tank and pulled down by the parallel link, and there is an inclined cam in the washing tank, and the cam roller on the lid In some cases, the cam roller is pushed down by the inclined cam, and the lid is pulled down via the cam roller.
When the closing operation progresses and the packing on the lower surface of the lid is lowered to the extent that it approaches the upper edge surface of the cleaning tank, the cam recess provided in the cover fits into the cam protrusion provided in the cleaning tank. At first, it is fitted deeply as the lid descends.

Since the cam concave portion and the cam convex portion have a cam surface that moves the lid body in the left-right direction by being fitted to each other, when the cam concave portion and the cam convex portion are fitted to each other, Due to the cam action, the cover is pushed back in the left-right direction by the amount displaced in the left-right direction, the position in the left-right direction with respect to the cleaning tank is adjusted, and the cleaning tank is closed at the adjusted position.
As described above, the closing operation is started at the final stage of the pushing operation of the cleaning tank, and the cam recess starts to be engaged with the cam protrusion at the final stage of the closing operation, and the closing operation is finished. By the time, the adjustment (centering) of the horizontal position of the lid with respect to the cleaning tank is completed.

  Therefore, the position adjusting mechanism (centering mechanism) by the cam convex portion and the cam concave portion becomes resistance to the pushing operation of the washing tank for a short time at the final stage of the pushing operation. The smoothness of the pushing operation of the tank is not impaired.

On the other hand, if the displacement of the lid in the left-right direction is large, the position adjustment function may be performed even after the packing on the lower surface of the lid is strongly pressed against the cleaning tank. In this case, the friction between the packing and the cleaning tank The resistance increases, and the resistance to the position adjusting action increases.
Since the cam convex portion of the present invention has elasticity in the left-right direction and is elastically deformed with respect to a predetermined lateral force, the lid body is in a stage before the packing contacts the cleaning tank. However, if the frictional resistance between the packing and the cleaning tank increases, the resistance to the movement of the lid in the horizontal direction increases suddenly. Elastically deforms. Therefore, the lid body is not forced to be pushed further in the left-right direction by the position adjusting action on the lid body, and it is avoided that the packing is forcibly dragged and greatly distorted.

  In addition, since the cam recess is provided in the cleaning tank and the cam protrusion is provided on the lid, it functions as a centering mechanism without any problem, so whether to provide the cam protrusion on the cleaning tank or the lid is a selective design matter. It is within the range.

  In addition, by providing a groove at the base of the cam projection to weaken it, the cam projection can be given elasticity in the left-right direction, and the cam projection can be attached to the upper surface of the washing tank via an elastic plate such as a rubber plate. The cam convex portion can be elastic to the lateral force.

As described above, the cam convex portion and the cam concave portion that are fitted to each other when the lid body is lowered in the lid closing operation are provided on the lower surface of the lid body and the upper surface of the cleaning tank, so that the lid body is moved in the final stage of the pushing operation of the cleaning tank. Since the position adjustment (centering) with respect to the cleaning tank is performed, the resistance to the pushing operation of the cleaning tank by this position adjustment can be minimized.
Further, by providing the cam protrusion and the cam recess on the left or right side of the front or rear of the lid or the cleaning tank, it is possible to further increase the horizontal positioning accuracy of the entire lid with respect to the cleaning tank. it can.

Since the cam convex portion can be elastically deformed in the left-right direction, the packing on the lower surface of the lid body is strongly pressed against the cleaning tank to increase the sliding resistance. As a result, the resistance to the lateral movement of the lid body is increased. Thus, when the cam convex portion is strongly pressed in the left-right direction by the cam action of the inclined surface, the cam convex portion is greatly elastically deformed in the left-right direction, so that the force pushing the lid in the left-right direction is suppressed. Therefore, it is avoided that the packing is greatly distorted due to an excessive drag force and the sealing performance is impaired or damaged.

  Next, embodiments of the present invention will be described with reference to the drawings (FIGS. 1, 2 and 3). In this embodiment, the present invention is applied to a conventional one (for example, the prior art disclosed in Japanese Patent No. 3789775) in which a lid is pulled down and closed by a cam action by an inclined cam and a cam roller.

The cleaning tank 2 according to the first embodiment is supported by a cleaning machine main body 1 by a rail R (see FIG. 8) so that the cleaning tank 2 can be moved in and out, and a lid 3 is supported by the cleaning machine main body 1 so as to be movable up and down.
The lid 3 is pushed up by the wire rod spring 4 ( same as the wire rod spring 204 in FIG. 8), and is normally held in the open position. When the washing tank 2 is pushed into the washing machine main body 1, the lid 3 is pulled down against the wire spring 4 by a cam mechanism (by the inclined cam 11 and the cam roller 31).

When the lid 3 is pulled down, the packing p is pressed against the upper edge surface of the cleaning tank 2 and the cleaning tank 2 is closed. Support plates 10 are respectively fixed to the left and right sides of the lid 3, and cam rollers 31 are attached to both front and rear portions of the support plate 10. Further, the center of the wire spring 4 is locked to the side wall of the cleaning machine main body 1, and the shaft of the guide roller 32 is pushed up at both front and rear ends of the wire spring 4 , thereby pushing up the lid 3.
Inclined cams 11, 11 are provided on the front and rear of the upper portion of the side wall of the cleaning tank 2, and on the other hand, cam rollers 31, 31 are provided on the front and rear of the support plate 10 fixed to the lid 3. In addition, there are inclined guide holes 12 and 12 on the front and rear of the upper part of the left and right side walls of the washing machine main body 1, respectively, and on the other hand, there are guide rollers 32 and 32 on the front and rear of the lid 3, respectively. Each is inserted into the inclined guide hole 12.

When the cleaning tank 2 is pushed into the main body 1 of the washing machine, the inclined cams 11 and 11 of the cleaning tank 2 come into contact with the front and rear cam rollers 31 and 31 at the final stage of the pushing stroke and are pushed by the inclined cam surfaces 11a and 11a. Then, the lid 3 is pulled down via the cam roller 31. At this time, the guide roller 32 moves obliquely backward along the guide hole 12 while moving downward in the inclined guide hole 12. Due to this rearward movement, the rearward relative movement with respect to the upper edge surface of the cleaning tank 2 is reduced, and the lid 3 is lowered with respect to the upper surface of the cleaning tank 2 in this state. Accordingly, since the movement of the cleaning tank 2 to the rear after the upper edge surface of the cleaning tank 2 abuts against the packing p of the lid 3 is small, the packing p is forcibly dragged in a strongly compressed state. It will not be distorted.

  Cam protrusions 2 a and 2 a are respectively provided on the upper surfaces on both the left and right sides of the cleaning tank 2, and cam recesses (long holes in the front-rear direction) 3 a and 3 a are provided on the left and right sides on the rear side of the lid 3. Since the cam convex portion 2a and the cam concave portion 3a are fitted to each other by the closing operation of the lid body 3, the cam convex portion 2a and the cam concave portion 3a are fitted with a slight relative movement in the front-rear direction. The length in the front-rear direction is slightly larger than that of the cam projection 2a, and the portion is fitted with a margin in the front-rear direction accordingly.

  The cam convex portions 2a and 2a are truncated cones whose upper ends are eccentric rearward with respect to the lower ends, and the cam concave portions 3a and 3a are long holes whose inner surfaces are vertical. When the cover 3 is pulled down, when the cam protrusions 2a, 2a are fitted into the cam recesses 3a, 3a, if the cover 3 is displaced in the left-right direction with respect to the cleaning tank 2, either the left or right cam protrusion 2a. The lower end inner surface 3a-1 of the cam recess 3a is in contact with the inclined cam surface of the cam, and the cam action pushes the lid 3 in either the left or right direction with respect to the cleaning tank 2, thereby adjusting the position (center ring). The lid is closed after being adjusted to a predetermined position (see FIG. 2). By selecting the fitting depth between the cam convex portion 2a and the cam concave portion 3a and the angle of the inclined cam surface within an appropriate range, it is possible to adjust the position in the left-right direction within a necessary range.

By increasing the fitting depth and reducing the inclination angle of the cam surface, it is possible to suppress an increase in resistance due to position adjustment (centering) with respect to the pushing operation of the cleaning tank. In view of the relationship, it is not possible to make the fitting depth too deep. Therefore, it is preferable to set the fitting depth to about 3 to 5 mm and the inclination angle of the cam surface to about 20 degrees (conical angle 40 degrees).
When the cleaning tank 2 is pulled out, in the first stage of the pulling operation, the cam roller 31 rises along the cam surface of the inclined cam 11 and comes off the cam surface, and the lid 3 is pushed up by the wire spring 4 and opened. Covered.

The cam projection 2a is made of plastic that is separate from the cleaning tank 2, and is adhered and fixed to the upper surface of the cleaning tank 2 via an elastic plate 2g.
The elastic plate 2g is hard rubber (e.g., hardness EPDM rubber Hs70~8 0) is made of thick 3-4 mm, when the cam protrusion 2a is pressed strongly by the inner surface lower end of the cam recess 3a, which is elastically deformed Thus, the cam projection 2a is elastically deformed in the left-right direction.

In this embodiment, the friction resistance between the packing p and the cleaning tank 2 is, for example, about 6 kg or more in a state where the packing p of the lid 3 is in contact with the upper edge surface of the cleaning tank 2 and the cleaning tank is closed. Therefore, the cam convex portion 2a is pushed by the cam concave portion 3a and is deformed in the lateral direction immediately before the closing of the cleaning tank 2 by the lid 3 is completed. Accordingly, the packing p is not strongly distorted by being strongly pushed in the lateral direction by the cam action of the cam convex portion 2a and the cam concave portion 3a.

  In the first embodiment, the cam convex portion 2a is provided in the cleaning tank 2 and the cam concave portion 3a is provided on the lower surface of the lid body. However, the cam concave portion 3a is provided in the cleaning tank in reverse, and the cam convex portion 2a is provided on the lid body. 3 may be provided.

  The second embodiment is shown in FIG. 4 and differs from the first embodiment in the structure for imparting elasticity to the cam projection, and the other structures are not different from the first embodiment. The cam convex portion 22 of the second embodiment is not different from the cam convex portion 2a in its shape, but is integrally projected from the rear portion 2d of the cleaning tank 2, and a horizontal cutout 22c is formed at the base. is there. The notch 22c causes the base of the cam projection 22 to have low bending rigidity, and when it receives a lateral force, it is elastically deformed in the left-right direction.

Example 3 is shown in FIG. 5, and the cam convex part is a cam elastic plate 42 with respect to Examples 1 and 2, and the cam concave part on the lower surface of the lid 3 is constituted by a cam recess 43. There is no difference in other structures.
The cam elastic plate 42 is manufactured by bending a spring steel plate having a thickness of 0.6 to 0.8 mm into a V shape having an angle of 45 degrees, and the cam recess 43 has an inclined inner surface.
The cam elastic plate 42 has a bottom side 42a and an inclined side 42b. The bottom side 42a has two holes, and a set screw 42h is inserted into the hole to fix the bottom side 42a to the upper surface of the cleaning tank 2.

When the lid 3 is lowered by the lid closing operation, the inclined side 42b of the cam elastic plate 42 is fitted into the cam recess 43, and if the lid 3 is displaced in the left-right direction with respect to the cleaning tank 2, either the left or right cam The inclined side 42b of the elastic plate 42 is in contact with the inclined surface of the cam recess 43, and the lid 3 is pushed by the cam action to adjust the position (centering) in the left-right direction.

  The lid body 3 is pushed in the left-right direction by the cam action of the cam elastic plate 42 to adjust the position. However, when the packing p of the lid 3 comes into contact with the cleaning tank 2 and the frictional force with the cleaning tank 3 increases, the resistance to the subsequent movement of the lid 3 in the left-right direction (resistance due to the frictional force) increases. Therefore, the inclined side 42b of the cam elastic plate is elastically deformed by losing this resistance. Therefore, after the packing p comes into contact with the cleaning tank 2, when the resistance to the lateral movement of the lid body 3 increases, the lid body 3 is forcibly pushed in the lateral direction by the cam convex portion, so that the packing p is forcibly pushed. It is avoided that it is dragged and greatly distorted.

Example 4 is shown in FIG. 6 and is an example in which the cam projection can be easily replaced. The cam convex portion 2a of the fourth embodiment is a separate body from the cleaning tank 2, that is, the cam convex portion 2a of the first embodiment is fixed to the cleaning tank 2 with a set screw 2s. A screw hole is provided in the bottom surface of the cam projection 2a, a center hole is provided in the elastic plate 2g, a hole is provided at a predetermined position of the cleaning tank, and a set screw 2s is inserted from the hole of the cleaning tank. The cam projection 2a is detachably fixed to the cleaning tank by being screwed into the screw hole of the portion 2a.
For example, when the inclined cam surface of the cam protrusion 2a and the inner surface of the cam recess 3a are worn, the cam protrusion 2a can be easily replaced by removing the set screw 2a.

Example 5 is shown in FIG. 7, and is another example in which the cam projection can be easily replaced. The cam projection 53 of the fifth embodiment is a separate body from the cleaning tank 2 and has a truncated cone shape, and an annular groove 53a is provided at the lower mounting portion.
On the other hand, there is a keyhole-shaped mounting hole 54 on the upper surface of the cleaning tank 2 in the front-rear direction. The mounting portion of the cam convex portion 53 is inserted into the round hole portion 54a, and the cam convex portion 53 is moved in the direction of the arrow. The shaft portion 53b of the groove 53a is tightly fitted and fixed to the slot portion 54b of the mounting hole 54. In this embodiment, no set screw is required, and the cam projection can be easily attached and detached.

[Others]
A pair of left and right cam recesses or cam projections are provided in front of or behind the cleaning tank and the lid, and these cam actions cause the horizontal positioning of the lid with respect to the cleaning tank. In this embodiment, the deterioration of the sealing performance due to packing has been described. However, there are a pair of front and rear cam recesses (or cam protrusions) at the front and rear centers of the lower surface of the lid, and the upper surface of the cleaning tank. If there is a pair of front and rear cam projections (or cam recesses) in the center of the front and rear, and the cam projections fit into the cam recesses when the lid is lowered, the front part of the lid, Since the rear part is aligned in the left-right direction by the cam action of the respective cam recesses and cam protrusions, the above-described configuration also provides the same effect as the above-described embodiment.

These are top views of Example 1. FIG. These are XX sectional drawing of FIG. These are YY sectional drawing of FIG. These are sectional drawings similar to FIG. These are sectional drawings similar to FIG. These are sectional drawings similar to FIG. These are sectional drawings similar to FIG. These are sectional drawings of background art. FIG. 9 is a partially enlarged view of the background art of FIG. 8 in the open state. FIG. 10 is a partially enlarged view in the closed state similar to FIG. 9. These are sectional drawings of a prior art. These are the top views of a prior art.

Explanation of symbols

1: Cleaning machine body 2: Cleaning tank 2a: Cam convex part 2g: Elastic plate 2s: Set screw 3: Cover body 3a: Cam concave part 11: Inclined cam 11a: Inclined cam surface 12: Inclined guide hole 22: Long hole 31: Cam roller 32: Guide roller 42: Cam elastic plate 43: Cam recess 53: Cam convex portion 53a: Annular groove 53b: Shaft portion 54: Mounting hole 54a: Round hole portion 54b: Slot portion

Claims (2)

Cleaning tank is out freely supported in the longitudinal direction to the cleaning machine body through the rail, the cover having a packing to the lower surface is supported vertically movably to the washing machine body, in conjunction with the pushing operation of the cleaning tank in pull-out dishwashing machine adapted to closing lowers the said lid against the lid opening spring and,
There are cam recesses (or cam protrusions) on the front left and right of the lower surface of the lid,
There are cam projections (or cam recesses) on the front left and right of the upper surface of the cleaning tank,
Cam recess of the lid (or the cam protrusion), and the cam protruding portion of the cleaning tank (or the cam recess), when the lid is lowered, the lid fits a cam protrusion on the cam recess It has a cam surface that moves in the left-right direction with respect to the upper edge surface of the cleaning tank,
The cam protrusion has elasticity in the lateral direction, which deforms elastically when subjected to a predetermined force or more in the horizontal direction,
The closing operation is started at the final stage of the pushing operation of the cleaning tank, and the cam convex part starts to be fitted into the cam concave part at the final stage of the closing operation. After that, the packing of the lid is brought into contact with and pressed against the upper edge surface of the cleaning tank, and when the cam projection is elastically deformed by receiving a predetermined force in the left-right direction, A drawer type dishwasher in which the cam protrusion and the cam recess act so that adjustment of the position in the left-right direction is restricted . Cleaning tank is out freely supported in the longitudinal direction to the cleaning machine body through the rail, the cover having a packing to the lower surface is supported vertically movably to the washing machine body, in conjunction with the pushing operation of the cleaning tank in pull-out dishwashing machine adapted to closing lowers the said lid against the lid opening spring and,
There are cam recesses (or cam protrusions) at the front and rear center of the lower surface of the lid,
There are cam projections (or cam recesses) at the front and rear center of the upper surface of the washing tank,
Cam recess of the lid (or the cam protrusion), and the cam protruding portion of the cleaning tank (or the cam recess), when the lid is lowered, the lid fits a cam protrusion on the cam recess It has a cam surface that moves in the left-right direction with respect to the upper edge surface of the cleaning tank,
The cam protrusion has elasticity in the lateral direction, which deforms elastically when subjected to a predetermined force or more in the horizontal direction,
The closing operation is started at the final stage of the pushing operation of the cleaning tank, and the cam convex part starts to be fitted into the cam concave part at the final stage of the closing operation. After that, the packing of the lid is brought into contact with and pressed against the upper edge surface of the cleaning tank, and when the cam projection is elastically deformed by receiving a predetermined force in the left-right direction, A drawer type dishwasher in which the cam protrusion and the cam recess act so that adjustment of the position in the left-right direction is restricted .

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