JP2008104885A - Drawer-type dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drawer-type dishwasher, eliminating shock in accommodating a washing vessel in a washer body to reduce the possibility of damaging tableware or the washing vessel as much as possible, and further storing the washing vessel until it is surely accommodated in the accommodation complete position even if the pushing force for the washing vessel is weak. <P>SOLUTION: This drawer-type dishwasher includes: a box-shaped washer body; a washing tub, which can be accommodated from the position outside of the washer body to the accommodation complete position in the washer body; and a moving means for automatically moving the washing tub to the accommodation complete position when the washing vessel is caused to reach a position at a first predetermined distance from the accommodation completion position by the accommodating operation for the washing vessel to the inside of the washer body, wherein the moving means includes a storage means for storing drawing operation energy in drawing out the washing vessel, and the washing tub can be automatically moved to the accommodation completion position utilizing the energy stored in the storage means. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a drawer-type dishwasher, and specifically relates to an auxiliary mechanism for a pushing operation of a washing tank,
The washing tank can be pushed in completely by the assisting force, and the pushing operation is gently completed by reducing the impact at the pushing end point.

There is known a dishwasher including a box-shaped washing machine main body and a washing tank that can be accommodated from a position outside the washing machine main body to an accommodation completion position in the washing machine main body.
In this dishwasher, after the user stores the tableware in the washing tub with the washing tub pulled out from the washing machine main body, the user pushes the washing tub into the washing machine main body to accommodate the washing tub. Move to the completion position. When the user performs a predetermined operation in a state where the cleaning tank has been moved to the accommodation completion position, the tableware in the cleaning tank is cleaned.
Although there is no assist mechanism that assists the pushing-in operation of the washing tub of the dishwasher, there are known inventions in which an assist mechanism and a buffer mechanism are provided in a home drawer (Japanese Patent Laid-Open No. 2000-217655, Japanese Patent Laid-Open No. 2002-101988). Japanese Laid-Open Patent Publication No. 2000-217655 discloses that such an assist mechanism and a buffer mechanism are applied to a washing tank of a drawer type dishwasher.
JP 2000-217655 A Japanese Patent Laid-Open No. 2002-101988

The pushing force of the cleaning tank by the user varies from time to time even between users or the same user. In some cases, the pushing force is strong.
When the pushing force is strong, the moving speed of the cleaning tank is also increased. When the washing tank having a high moving speed is suddenly stopped at the accommodation completion position, a large inertia force acts on the tableware accommodated in the washing tank. When a large inertia force acts on the tableware, the tableware or the tableware and the portion in the washing tub collide, and the tableware or the portion in the washing tub may be damaged.

  In addition, when the cleaning tank is pushed into the cleaning machine body, there is usually a state in which the cleaning tank side member and the cleaning machine body member rub against each other. For example, in a dishwasher, generally, the upper edge of the cleaning tank and the sealing member of the inner lid provided on the side of the cleaning machine are in contact with each other until reaching the storage completion position slightly before the cleaning tank storage completion position. Rub each other. As a result of the fast moving speed of the cleaning tank, if this rubbing becomes intense, the worn portion will be consumed quickly. In particular, the dishwasher is required to have a high sealing property between the washing tub and the inner lid in order to prevent water leakage due to the property of storing water in the washing tub and performing a washing operation. For this reason, there is a high demand for reducing the wear between the upper edge of the cleaning tank and the sealing member of the inner lid as much as possible.

  Furthermore, in a dishwasher, a structure in which a water supply hose, a drainage hose, or the like is connected between the back surface of the cleaning tank and the back surface of the cleaning machine main body is common. These hoses and the like are extended when the cleaning tank is drawn out and bent when the cleaning tank is accommodated. That is, there is a change in state from stretching to bending during the pushing operation of the cleaning tank. Also in this case, if the moving speed of the cleaning tank is fast, the exhaustion of these hoses and the like becomes severe.

  On the other hand, when the pushing force of the cleaning tank by the user is weak, the cleaning tank may not reach the accommodation completion position and may stop before that. The dishwasher is usually configured such that the cleaning operation or the like is not started unless the cleaning tank has reached the accommodation completion position. For this reason, even if the user pushes the cleaning tank, when the cleaning tank does not actually reach the accommodation completion position, a situation occurs in which the cleaning operation or the like is not performed. Thus, in the dishwasher, due to the nature of performing the washing operation, etc., it is not sufficient for the washing tank to reach near the accommodation completion position for reasons such as preventing water leakage, and the washing tank is in the accommodation completion position. It is required to reach up to.

An object of this invention is to provide the dishwasher with few inconveniences which arise with the accommodation of the washing tank in the washing machine main body.
Specifically, it is an object of the present invention to reduce as much as possible the possibility of damage to tableware or a portion in the cleaning tank due to the operation of storing the cleaning tank in the main body of the cleaning machine. It is another object of the present invention to maintain good performance of the dishwasher even if the washing tank is stored many times. It is another object of the present invention to provide a dishwasher with less occurrence of a situation where the washing tank does not reach the accommodation completion position even when the pushing force of the washing tank by the user is weak.
The present invention seeks to achieve at least one of the above objects.

  A dishwasher embodying the present invention includes a box-shaped washing machine body, a washing tub that can be accommodated from a position outside the washing machine body to an accommodation completion position in the washing machine body, and a washing tank into the washing machine body Moving means for automatically moving the cleaning tank to the storage completion position after the cleaning tank has reached the first predetermined distance to the storage completion position by the storage operation. In the dishwasher, the moving means has an accumulation means for accumulating energy when the user pulls out the washing tank, and uses the energy accumulated in the accumulation means to bring the washing tank to the accommodation completion position. It is configured to move automatically.

Since this dishwasher has moving means, when the washing tub reaches the position of the first predetermined distance to the accommodation completion position by the operation of accommodating the washing tub in the main body of the washing machine, the washing tub is completely accommodated from that position. Automatically move to the position.
Therefore, even if the pushing force of the cleaning tank by the user is weak and the cleaning tank does not reach the accommodation completion position only by the pushing force, the washing tank reaches the position of the first predetermined distance to the accommodation completion position by the pushing force. Then, the cleaning tank can be reliably reached at the accommodation completion position.
As described above, by configuring the moving means to move the cleaning tank to the accommodation completion position using the energy when the user pulls out the cleaning tank, the energy for moving the cleaning tank is supplied from a power source or the like. You don't have to. Further, by storing energy when the user pulls out the cleaning tank, energy can be obtained from the user without giving the user a sense of consuming energy.
Thus, according to the present invention, there is provided a dishwasher with less inconvenience caused by the accommodation of the washing tank in the washing machine body.

(Embodiment)
In the dishwasher of the present invention, the accumulating means is an elastic member that is stretched by the force with which the user pulls out the washing tank. The elastic member is held in an extended state until the cleaning tank reaches the position of the first predetermined distance to the storage completion position by the storing operation of the cleaning tank in the main body of the cleaning machine. The elastic member completes the accommodation of the washing tank by the return force from the extended state after the washing tank reaches the accommodation completion position to the accommodation completion position by the accommodating operation of the washing tank in the main body of the washing machine. Energize towards position.
According to this dishwasher, since the storage means is realized by a mechanical mechanism and does not include an electrical configuration, manufacturing and maintenance are relatively easy.

Furthermore, in the dishwasher of this invention, the moving means is provided with the movable member connected to the washing tank through the elastic member. The movable member is fixed in position relative to the cleaning machine body when the cleaning tank is located at a position closer than the first predetermined distance from the accommodation completion position. The position of the movable member is fixed with respect to the cleaning tank when the cleaning tank is located at a position farther from the housing completion position than the first predetermined distance.
According to this dishwasher, since the moving means is realized by a mechanical mechanism and does not include an electrical configuration, manufacturing and maintenance are relatively easy.

The above dishwasher cleans a braking force greater than that before reaching the position after the cleaning tank reaches the second predetermined distance by the storing operation of the cleaning tank in the main body of the cleaning machine. It is preferable to further provide a braking means applied to the tank.
Here, the “first predetermined distance” may be equal to the “second predetermined distance”, or the “second predetermined distance” may be longer or shorter than the “first predetermined distance”. Also good.

Since this dishwasher is provided with a braking means, the cleaning tank is moved from the time when it reaches the second predetermined distance to the storage completion position by the storing operation of the cleaning tank in the main body of the cleaning machine and before the position is reached. A braking force larger than the braking force (for example, the frictional force between the rail of the cleaning machine main body and the roller of the cleaning tank) is applied to the cleaning tank.
Therefore, for example, when the user pushes the cleaning tank with the same force, the cleaning tank is decelerated from the time when it reaches the position of the second predetermined distance and stops at the accommodation completion position before reaching the position. .

Thus, since this dishwasher is equipped with the above-mentioned braking means, compared with the case where this braking means is not provided, the movement speed of the washing tub after reaching the position of the 2nd predetermined distance is slow. Can be.
According to this dishwasher, the braking force by the braking means is applied from the position of the second predetermined distance to the washing tank that has been moved by the moving means after reaching the position of the first predetermined distance. Therefore, the moving speed of the cleaning tank from the position of the second predetermined distance can be reduced even with respect to the cleaning tank moving by the moving means.
Therefore, the cleaning tank can be gently stopped at the accommodation completion position. For this reason, it is possible to reduce the possibility that the dishes or the parts in the washing tub collide with each other and the parts in the tableware or the washing tub are damaged.
In addition, even when there is a state where a member on the cleaning tank side (for example, the upper edge of the cleaning tank) and a member on the main body side of the cleaning machine (for example, a seal member attached to the inner lid) rub against each other due to the storing operation of the cleaning tank. It is possible to reduce the wear of the fitted part.
Furthermore, even if a water supply hose, a drainage hose, or the like is connected between the back surface of the cleaning tank and the back surface of the cleaning machine main body, it is possible to reduce the consumption of these hoses and the like accompanying the storing operation of the cleaning tank.
Therefore, even if the storing operation of the washing tank is performed many times, the performance of the dishwasher can be maintained well.
Thus, according to the present invention, there is provided a dishwasher with less inconvenience caused by the accommodation of the washing tank in the washing machine body.

Furthermore, in the dishwasher of this invention, the elastic member and the movable member are unitized and provided in the outer bottom face of the washing tank.
Even if the water in the cleaning tank leaks in the vicinity of the outer bottom surface of the cleaning tank, it is hardly affected by the water leak. According to this dishwasher, it is possible to prevent deterioration of a moving mechanism such as an elastic member or a movable member due to the adhesion of water.

  The whole structure of the drawer type dishwasher of the Example of this invention is demonstrated with reference to FIGS. FIG. 1 is a schematic longitudinal sectional view showing a state where the cleaning tank 22 is pulled out from the cleaning machine main body 20. FIG. 2 is a schematic longitudinal sectional view showing a state where the cleaning tank 22 is accommodated in the cleaning machine main body 20. FIG. 3 shows a schematic plan view of the dishwasher. FIG. 4 shows a schematic cross-sectional view of a dishwasher.

  As shown in FIG. 1, the dishwasher includes a washing machine body 20, a washing tank 22, and the like. The cleaning machine main body 20 has a box shape with the front surface (left side in FIG. 1) opened. The cleaning tank 22 has a box shape with an upper part opened. As shown in FIG. 4, a roller 66 disposed below the bottom surface of the cleaning tank 22 is attached to the inner surface of the cleaning machine body 20. A rail 64 is attached to the outer bottom surface of the cleaning tank 22. The roller 66 and the rail 64 are engaged with each other with the upper surface of the roller 66 and the central bottom surface of the rail 64 in contact with each other. With this configuration, the cleaning tank 22 can slide smoothly with respect to the cleaning machine body 20. A front door 34 is provided on the front side of the cleaning tank 22, and a handle 35 to which a user applies force is formed. When the user pulls out or pushes in the cleaning tank 22 by using the handle 35, the cleaning tank 22 slides and moves in the horizontal direction between the drawing completion position shown in FIG. 1 and the accommodation completion position shown in FIG. To do.

  As shown in FIGS. 1 and 2, an inner lid 44 is provided at an upper position in the cleaning machine body 20. As shown in FIG. 1, the inner lid 44 is positioned slightly higher than the upper edge 23 of the cleaning tank 22 when the cleaning tank 22 is in the drawer position. Therefore, there is no interference with the movement of the slide of the cleaning tank 22. A seal member 45 is attached to the periphery of the lower surface of the inner lid 44. When the cleaning tank 22 is pushed into the cleaning machine main body 20, the inner lid 44 descends from before the accommodation completion position. As a result, as shown in FIG. 2, the seal member 45 is pressed while being rubbed against the upper edge 23 of the cleaning tank 22. When the sealing member 45 of the inner lid 44 is pressed against the upper edge 23 of the cleaning tank 22, the upper part of the cleaning tank 22 is sealed. For this reason, leakage of the cleaning water 30 to the outside of the cleaning tank 22 is prevented.

A tableware basket 32 is accommodated in the cleaning tank 22. Various tableware 33 is accommodated in the tableware basket 32. A cleaning nozzle 28 having a plurality of nozzle holes 28 a is provided below the tableware basket 32. The cleaning nozzle 28 is rotatable around a joint 29 with the discharge passage 26.
A cleaning pump 24 and a drainage pump 25 are provided outside the back surface of the cleaning tank 22. The cleaning pump 24 communicates with the bottom of the cleaning tank 22 through the suction passage 27 and communicates with the cleaning nozzle 28 through the discharge passage 26. The drainage pump 25 communicates with the suction passage 27 and communicates with the outside of the dishwasher via a drainage hose 48. A water supply port 22 c provided on the back surface of the washing tub 22 communicates with the outside of the dishwasher via a water supply hose 46.
Since the water supply hose 46 and the drainage hose 48 described above can be bent, the sliding between the drawing position and the storage position of the cleaning tank 22 is not hindered.

  As shown in FIGS. 3 and 4, unit portions 60 are provided on both sides of the rear portion of the outer bottom surface of the cleaning tank 22. Further, on both inner side surfaces of the cleaning machine main body 20, a lever engaging portion 62 extending in a direction slightly inclined with respect to the direction orthogonal to the direction in which the cleaning tank 22 is drawn is attached. In this way, the lever engaging portion 62 extends in a slightly inclined direction in order to easily engage a lever 78 described later.

Next, the structure of the unit part 60 is demonstrated with reference to FIG. FIG. 5 shows a part of a schematic plan view around the unit 60. In addition, since the member of the unit part 60 is provided in the outer bottom face of the washing tank 22, it should originally be shown with a dotted line, but is shown with a solid line for clarity of illustration.
The unit portion 60 includes a movable unit 72, a spring (spring spring) 70, a spring end fixing portion 68, a rotary damper (braking means) 82, and a rack guide 84.
The movable unit 72 includes a lever 78, a rack 74, and an L-shaped connection portion 76. When the lever 78 is in the state shown in FIG. 5, the movable unit 72 is movable in the pull-out direction with respect to the cleaning tank 22. In contrast, when the lever 78 is rotated by a predetermined angle clockwise with respect to the state of FIG. 5 as shown in FIG. 7, the movable unit 72 is fixed to the cleaning tank 22. That is, in conjunction with the rotation of the lever 78, the fixed / non-fixed state of the movable unit 72 with respect to the cleaning tank 22 is switched.
The moving mechanism (moving means) of the cleaning tank 22 is configured by the lever engaging portion 62 attached to the cleaning machine body 20, the lever 78 of the unit portion 60, the L-shaped connecting portion 76, the spring 70, the spring end fixing portion 68, and the like. ing.

  The lever 78 is substantially U-shaped, and is connected to one end of the L-shaped connecting portion 76 by a pin 80. The lever 78 can be rotated by a predetermined angle around the pin 80 as a rotation center. The rack 74 has a plate bar shape extending in the drawing direction, and is fixed to the other end of the L-shaped connecting portion 76. The rack 74 is formed with a large number of teeth along side surfaces extending in the pull-out direction.

The spring end fixing portion 68, the rack guide 84, and the rotary damper 82 are always fixed to the cleaning tank 22. However, the rotary damper 82 is fixed to the cleaning tank 22 in a rotatable state. One end of the spring 70 is connected to the L-shaped connecting portion 76 of the movable unit 72. The other end of the spring 70 is connected to the spring end fixing portion 68. The spring 70 extends in the drawing direction of the cleaning tank 22.
Two rack guides 84 are provided and extend in the drawing direction of the cleaning tank 22 at a predetermined interval. The space between the two rack guides 84 is slightly wider than the rack 74, and the rack 74 is accommodated in the space between the rack guides 84. A large number of tooth groups are formed on the circumferential surface of the rotary damper 82 over the entire circumference. The rotary damper 82 and the rack 74 described above are arranged at positions where parts of the tooth groups provided on the rotary damper 82 and the rack 74 are engaged with each other.

Next, the washing operation of the dishwasher will be described with reference to FIG. When the cleaning operation is started with the cleaning tank 22 stored in the storage completion position as shown in FIG. 2, the cleaning water 30 is supplied from the water supply hose 46 into the cleaning tank 22, and the cleaning water is placed at the bottom of the cleaning tank 22. 30 is stored. Next, the cleaning pump 24 starts to move, and the cleaning water 30 at the bottom of the cleaning tank 22 is sucked into the cleaning pump 24 through the suction passage 27 and pressurized. The pressurized cleaning water 30 is supplied to the cleaning nozzle 28 through the discharge passage 26. The supplied washing water 30 is ejected from the nozzle hole 28a vigorously upward, and the tableware 33 in the tableware basket 32 is washed. The washing water 30 after washing returns to the bottom of the washing tank 22 again. The tableware 33 is washed by repeating the above operation.
When discharging the cleaning water 30 from the cleaning tank 22, the drainage pump 25 is operated to suck out the cleaning water 30 from the bottom of the cleaning tank 22 via the suction passage 27. The washing water 30 sucked out by the drainage pump 25 passes through the drainage hose 48 and is discharged to the outside of the dishwasher.

  Next, the drawing operation of the cleaning tank 22 will be described with reference to FIGS. First, FIG. 5 shows a state where the cleaning tank 22 is in the accommodation completion position in the cleaning machine body 20. When the cleaning tank 22 is in the housing completion position, the back surface of the cleaning tank 22 is at a position on the drawing side (near side) by a distance A from the back surface of the cleaning machine body 20. Various members such as a water supply hose 46 and a drainage hose 48 (see FIG. 1) are arranged in the space of the distance A. As shown in FIG. 5, when the cleaning tank 22 is in the accommodation completion position, the lever 78 is engaged with the lever engaging portion 62. In this state, the length of the spring 70 is a natural length.

  As shown in FIG. 6, it is assumed that the cleaning tank 22 is pulled out from the housing completion position by the pull-out distance X. Even if the cleaning tank 22 is pulled out, the lever 78 of the movable unit 72 is engaged with the lever engaging portion 62 when the pulling distance X is smaller than B (see FIG. 7). Therefore, the absolute position of the movable unit 72 is the same as when the cleaning tank 22 is in the accommodation completion position. On the other hand, the spring end fixing portion 68 moves to the position on the drawer side together with the cleaning tank 22 by the withdrawal distance X. Therefore, the spring 70 connected between the spring end fixing portion 68 and the movable unit 72 (L-shaped connecting portion 76) is extended by the amount of the pull-out distance X when the pull-out distance X is smaller than B.

As shown in FIG. 7, when the cleaning tank 22 is pulled out from the housing completion position by the pull-out distance B, the lever 78 and the lever engaging portion 62 are disengaged, and the lever 78 rotates clockwise by a predetermined angle. . Thus, when the lever 78 rotates clockwise by a predetermined angle, the movable unit 72 including the lever 78 is fixed to the cleaning tank 22 at that position. As a result, the state in which the spring 70 is extended from the natural length by the length B is also maintained. When the lever 78 rotates, the pin 80 that stops the lever 78 moves slightly to the pull-out side, so that the extension of the spring 70 from the natural length is slightly shorter than the length B, but it is long for convenience of explanation. It is assumed that B is extended.
This state is maintained even when the cleaning tank 22 is pulled out larger than the pull-out distance B (see FIG. 8). That is, when the cleaning tank 22 is pulled out from the housing completion position by the pulling distance B or more, the spring 70 accumulates energy for extending the spring 70 by the length B from the natural length.

  Thus, in order to pull out the cleaning tank 22 from the housing completion position to the pull-out distance B, in addition to the force required to pull out the cleaning tank 22 itself, a force that pulls the spring 70 and a rotary that works in a direction opposite to the pulling-out direction. A force that opposes the braking force by the damper 82 is required.

  Next, the pushing operation of the cleaning tank 22 will be described with reference to FIGS. FIG. 8 shows a state in which the cleaning tank 22 is largely drawn out from the cleaning machine body 20. In this state, the lever 78 is rotated clockwise by a predetermined angle as described above, and the movable unit 72 including the lever 78 is fixed to the cleaning tank 22. Further, the spring 70 is also held in a state where it is extended by a length B from the natural length.

  As shown in FIG. 9, it is assumed that the cleaning tank 22 is pushed into the cleaning machine body 20. When the cleaning tank 22 is pushed to the position of the distance B to the accommodation completion position, the lever 78 contacts the lever engaging portion 62 and rotates counterclockwise by a predetermined angle. As a result, the lever 78 engages with the lever engaging portion 62. When the lever 78 rotates counterclockwise by a predetermined angle, the movable unit 72 including the lever 78 is released from the state of being fixed to the cleaning tank 22 and is movable to the cleaning tank 22 in the pull-out direction. Become. As a result, the spring 70 is also released from the state where it is forcibly extended by the length B from the natural length. For this reason, the spring 70 tries to return to its natural length. That is, the spring 70 acts to release the energy stored in itself.

  In a state where the spring 70 is about to return to the natural length, the lever 78 of the movable unit 72 is engaged with the lever engaging portion 62. The lever engaging portion 62 is fixed to the cleaning machine body 20. Therefore, in a state where the lever 78 of the movable unit 72 is engaged with the lever engaging portion 62 in this way, the movable unit 72 is fixed to the cleaning machine body 20. For this reason, the energy that the spring 70 tries to return to the natural length is used as the energy that tries to move the spring end fixing portion 68 and thus the cleaning tank 22 to the accommodation side (back side). That is, when the spring 70 is contracted from the natural length to the natural length from the length B, as shown in FIG. 10, the cleaning tank 22 is moved from the distance B to the accommodation completion position by the distance B to the accommodation side. Just move. As a result, the cleaning tank 22 reaches the accommodation completion position.

  However, after the cleaning tank 22 reaches the position of the distance B to the accommodation completion position, a braking force proportional to the moving speed of the cleaning tank 22 is applied to the cleaning tank 22 by the rotary damper 82. That is, the rotary damper 82 and the rack 74 that meshes with the rotary damper 82 are located until the position of the distance B from the position where the cleaning tank 22 is largely pulled out to the accommodation completion position is reached (from the state shown in FIGS. 8 to 9). Since it is moving at a constant speed, no braking force is generated by the rotary damper 82. However, when the cleaning tank 22 reaches the position of the distance B to the accommodation completion position, the absolute position of the movable unit 72 is fixed by engaging the lever 78 of the movable unit 72 with the lever engaging portion 62. Therefore, the absolute position of the rack 74 of the movable unit 72 is also fixed. On the other hand, the washing tank 22 still moves at a certain speed toward the accommodation completion position. Therefore, the rotary damper 82 fixed to the cleaning tank 22 also moves at that speed. For this reason, a speed difference is generated between the rack 74 and the rotary damper 82. As a result, a braking force proportional to the moving speed is applied to the cleaning tank 22 by the rotary damper 82. Therefore, the cleaning tank 22 reaches the accommodation completion position at a lower speed from the position of the distance B to the accommodation completion position than in the case where such a rotary damper 82 is not provided.

The value of the distance B described above is preferably 1/20 or more and 1/4 or less of the length of the cleaning tank 22 in the drawing direction.
The reason why such a value is preferable is that when a braking force is applied by the rotary damper 82 from a position that is very close to the accommodation completion position, the burden on the user pushing the cleaning tank 22 increases. On the other hand, even if the braking force by the rotary damper 82 is applied from a position where the distance to the accommodation completion position is very short, it is difficult to reduce the moving speed of the cleaning tank 22.
In addition, when the washing tank 22 is automatically moved by the above-described moving mechanism in a state where the washing tank 22 is largely pulled out, when the user stores the tableware in the washing tank 22 or the like. This is because there is a possibility that the cleaning tank 22 automatically moves to the accommodation completion position unintentionally.

Since the dishwasher of the first embodiment includes the rotary damper 82 described above, the cleaning tank 22 from when the position of the distance B is reached as compared with a case where no braking means such as a damper is provided. The moving speed of can be reduced.
Therefore, the cleaning tank 22 can be gently stopped at the accommodation completion position. For this reason, the possibility that tableware 33 or tableware basket 32 etc. which tableware 33 shown in Drawing 1 etc. collide or tableware 33 and tableware basket 32 etc. will be damaged can be made low. Further, even when there is a state in which the sealing member 45 attached to the inner lid 44 provided on the cleaning machine body 20 rubs with the upper edge 23 of the cleaning tank 22 shown in FIG. It is possible to reduce wear of the rubbed portions.
Further, even if the water supply hose 46 and the drainage hose 48 shown in FIG. 1 and the like are connected between the back surface of the cleaning tank 22 and the back surface of the cleaning machine body 20, these hoses 46 accompanying the storing operation of the cleaning tank 22. , 48 etc. can be reduced.
Therefore, even if the storing operation of the washing tub 22 is performed many times, the performance of the dishwasher can be maintained well.

Further, the dishwasher includes a moving mechanism for the washing tub 22 including the lever engaging portion 62, the lever 78, the L-shaped connecting portion 76, the spring 70, the spring end fixing portion 68, and the like. When the cleaning tank 22 reaches the position of the distance B to the storage completion position, the cleaning tank 22 automatically moves from that position to the storage completion position.
Therefore, even if the pushing force of the cleaning tank 22 by the user is weak and the cleaning tank 22 does not reach the accommodation completion position only by the pushing force, the washing tank 22 reaches the position of the distance B to the accommodation completion position by the pushing force. If so, the cleaning tank 22 can be reliably reached at the accommodation completion position.

Moreover, in this dishwasher, if only the said moving mechanism is used, the moving speed of the washing tank 22 when it reaches the position of the distance B will be relatively fast due to the restoring force of the spring 70 constituting the moving mechanism. . However, since this dishwasher is further provided with a rotary damper 82, the braking force by the rotary damper 82 is applied to the cleaning tank 22 from the position of the distance B, so that the moving speed of the cleaning tank 22 can be reduced. it can.
Furthermore, when the pushing force of the cleaning tank 22 by the user is large and reaches the position of the distance B, when the moving speed of the cleaning tank 22 is so high that the assist by the moving mechanism is unnecessary, or at the position of the distance B. Even after reaching, the user may naturally continue to push the cleaning tank 22. Even in such a case, the braking force by the rotary damper 82 is applied to the cleaning tank 22 from the position of the distance B. Therefore, even in such a case, the moving speed of the cleaning tank 22 from the position of the distance B can be reduced.

In addition, the dishwasher includes a spring 70 that accumulates energy when the user pulls out the washing tank 22. Specifically, when the cleaning tank 22 is pulled out by the distance B and the spring 70 is extended by the length B, the lever 78 rotates clockwise, the movable unit 72 is fixed to the cleaning tank 22, and the spring 70. Is configured to hold the state stretched by the length B.
Then, when the cleaning tank 22 is pushed in and the cleaning tank 22 reaches the position of the distance B to the accommodation completion position, the lever 78 rotates counterclockwise, the movable unit 72 is fixed to the cleaning tank 22 and the spring 70 is released. The cleaning tank 22 is automatically moved to the accommodation completion position by the energy to return to the natural length.
Thus, since the said moving mechanism is comprised so that a user may move the washing tank 22 to an accommodation completion position using the energy at the time of drawing out the washing tank 22, the energy for moving the washing tank 22 May not be obtained from a power source or the like. Further, by storing energy when the user pulls out the cleaning tank 22, energy can be obtained from the user without making the user much aware that the user is consuming energy. it can.

  In addition, since the moving mechanism described above is realized only by a mechanical mechanism and does not include an electrical configuration, manufacturing and maintenance are relatively easy. The unit 60 including the rotary damper 82 and the moving mechanism is provided on the outer bottom surface of the cleaning tank 22. Even if the water in the cleaning tank 22 leaks in the vicinity of the outer bottom surface of the cleaning tank 22, it is not easily affected by the water leak. Therefore, by providing the unit portion 60 on the outer bottom surface of the cleaning tank 22 as described above, it is possible to prevent the rotary damper 82 and the movement mechanism from being deteriorated due to the adhesion of water.

  Further, by providing the rotary damper 82 and the moving mechanism described above, the movement of the cleaning tank 22 from the position of the distance B before the storage completion position to the storage completion position is very smooth and is moved at an appropriate speed. Made it possible. Further, even when the pushing force of the cleaning tank 22 by the user is strong, the storage completion position can be reached at a low speed, so that the impact sound when reaching the storage completion position is greatly reduced compared to the conventional case. be able to. Therefore, it is possible to provide a high-quality dishwasher that is comfortable to use.

(Second embodiment)
In FIG. 11, the schematic plan view of the dishwasher of 2nd Example is shown.
The dishwasher includes a plate portion 92 extending from the inner surface of the washing machine main body 20 and a damper 90 attached to the plate portion 92 and extending in the pulling-out direction of the cleaning tank 22. Power is applied to the back surface of the cleaning tank 22.

As shown in FIG. 11A, it is assumed that the cleaning tank 22 has reached the position of the distance B to the accommodation completion position as a result of the cleaning tank 22 being pushed in by the user. Then, the tip surface of the damper 90 comes into contact with the back surface of the cleaning tank 22. As a result, a force is applied to the cleaning tank 22 on the side from which the cleaning tank 22 is drawn out by the damper 90. That is, a braking force is applied to the cleaning tank 22. As a result, even if the user applies the same force, for example, and pushes in the cleaning tank 22, the cleaning tank 22 reaches a position at a distance B to the accommodation completion position, compared with before reaching that position. As a result, the washing tank 22 is decelerated and reaches the accommodation completion position as shown in FIG.

(Third embodiment)
In FIG. 12, the schematic plan view of the dishwasher of 3rd Example is shown.
This dishwasher includes a rack 96 attached to the side surface of the washing machine main body 20 and a rotary damper 94 attached to the outer bottom surface of the washing tank 22. Both the rack 96 and the rotary damper 94 have a large number of teeth. When the cleaning tank 22 reaches the position of the distance B to the accommodation completion position, the positional relationship is such that a part of the tooth group of the rotary damper 94 and the rack 96 mesh.

  As shown in FIG. 12A, it is assumed that the cleaning tank 22 has reached the position of the distance B to the accommodation completion position as a result of the cleaning tank 22 being pushed in by the user. Then, a part of the tooth group of the rotary damper 94 and the rack 96 is engaged. As a result, in the cleaning tank 22 to which the rack 96 is attached, a force is applied to the side where the cleaning tank 22 is pulled out by the rotary damper 94. That is, a braking force is applied to the cleaning tank 22. As a result, even if the user applies the same force, for example, and pushes in the cleaning tank 22, the cleaning tank 22 reaches a position at a distance B to the accommodation completion position, compared with before reaching that position. As a result, the washing tank 22 is decelerated and reaches the accommodation completion position as shown in FIG.

(Fourth embodiment)
In FIG. 13, the schematic plan view of the dishwasher of 4th Example is shown.
In this dishwasher, a light emission switch 98 is attached to one inner surface of the washing machine body 20. The light receiving switch 100 is attached to the outer surface of the cleaning tank 22 facing the inner surface of the cleaning machine body 20. A driving circuit 108 and two motors 106 are attached to the outer bottom surface of the cleaning tank 22. The drive circuit 108 is electrically connected to the light receiving switch 100 and the two motors 106. Energy is supplied to the drive circuit 108 and the motor 106 from an external power source. Rails 102 are attached to both inner side surfaces of the cleaning machine body 20. Belt conveyor type rollers 104 are attached to both outer surfaces of the cleaning tank 22. The rail 102 and the roller 104 are engaged.

As shown in FIG. 13A, it is assumed that the cleaning tank 22 has reached the position of the distance B to the accommodation completion position as a result of the cleaning tank 22 being pushed in by the user. Then, the light receiving switch 100 of the cleaning tank 22 detects the light emitted from the light emission switch 98 of the cleaning machine body 20. As a result, the light receiving switch 100 is turned on. When the light receiving switch 100 is turned on, the drive circuit 108 starts driving the two motors 106. Then, the belt conveyor type roller 104 of the cleaning tank 22 is rotated by the driving force of the motor 106, and the cleaning tank 22 moves to the accommodation side along the rail 102 of the cleaning machine body 20. And as shown in FIG.13 (b), when the washing tank 22 reaches an accommodation completion position, the drive of the motor 106 will be stopped.
As described above, the switch (in the above example, the light receiving switch 100) that switches when the cleaning tank 22 reaches a predetermined distance to the accommodation completion position, and the actuator that starts driving when the switch is switched (in the above example). The configuration may include a motor 106) and a moving mechanism (roller 104 in the above example) that moves the cleaning tank 22 to the accommodation completion position by the driving force of the actuator.

Specific examples of the present invention have been described above in detail, 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.
(1) In the above-described embodiment, an example in which a damper is used as the braking means has been described. However, examples of the braking means include springs (spring springs, leaf springs, etc.), actuators (pneumatic, hydraulic, etc.), rubber, etc. Various things, such as a cushioning material which has elasticity, can be used.
(2) In the above embodiment, as the moving means, a mechanism for pulling the cleaning tank 22 into the cleaning machine body 20 by the restoring force of the spring 70 as in the first embodiment, or the motor 106 as in the fourth embodiment. The example using the mechanism for moving the cleaning tank 22 by rotating the roller 104 of the cleaning tank 22 by the driving force has been described, but the moving means is a mechanism that pushes the cleaning tank 22 into the main body 20 of the cleaning machine. There may be a mechanism or the like that pulls electrically by electrostatic attraction or the like, and various types can be used.
(3) In the above-described embodiment, an example in which the spring spring 70 is used as the energy storage means has been described. However, the energy storage means may be a mechanical mechanism such as a mainspring mechanism using a leaf spring, for example. In addition, an electrical mechanism or the like that accumulates as electrical energy with a capacitor or the like may be used.

  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.

The schematic longitudinal cross-sectional view of the tableware washing machine of 1st Example is shown (washing tank drawer state). The schematic longitudinal cross-sectional view of the tableware washing machine of 1st Example is shown (washing tank accommodation state). The schematic plan view of the dishwasher of 1st Example is shown. The schematic cross-sectional view of the dishwasher of 1st Example is shown. Explanatory drawing of drawing-out operation | movement of the washing tank of the tableware washing machine of 1st Example is shown (1). Explanatory drawing of drawing-out operation | movement of the washing tank of the tableware washing machine of 1st Example is shown (2). Explanatory drawing of drawing-out operation | movement of the washing tank of the tableware washing machine of 1st Example is shown (3). Explanatory drawing of pushing-in operation | movement of the washing tank of the tableware washing machine of 1st Example is shown (1). Explanatory drawing of pushing-in operation | movement of the washing tank of the tableware washing machine of 1st Example is shown (2). Explanatory drawing of pushing-in operation | movement of the washing tank of the tableware washing machine of 1st Example is shown (3). The schematic plan view of the dishwasher of 2nd Example is shown. The schematic plan view of the dishwasher of 3rd Example is shown. The schematic plan view of the dishwasher of 4th Example is shown.

Explanation of symbols

20: Washing machine body 22: Cleaning tank 60: Unit part 62: Lever engaging part 68: Spring end fixing part 70: Spring 72: Movable unit 74: Rack 76: L-shaped connection part 78: Lever 80: Pin 82: Rotary Damper 84: Rack guide

Claims (5)

The box-shaped washer body, the washing tank that can be accommodated from the position outside the washing machine body to the accommodation completion position in the washing machine body, and the washing tank being accommodated in the washing machine body to the accommodation completion position Comprising a moving means for automatically moving the cleaning tank to the accommodation completion position after reaching the position of the first predetermined distance;
The moving means has storage means for storing energy when the user pulls out the cleaning tank, and automatically moves the cleaning tank to the accommodation completion position using the energy stored in the storage means. The dishwasher that is configured.   Braking means for applying a larger braking force to the cleaning tank than when the cleaning tank reaches the second position of the storage completion position by the storing operation of the cleaning tank in the main body of the cleaning machine. The dishwasher of Claim 1 provided.   The accumulating means is an elastic member that is extended by a force with which the user pulls out the cleaning tank, and the elastic member is a first predetermined position until the cleaning tank is stored in the cleaning machine main body by the storing operation of the cleaning tank. Until the position of the distance is reached, it is held in an expanded state, and is expanded from the time when the cleaning tank reaches the position of the first predetermined distance to the storage completion position by the storing operation of the cleaning tank in the main body of the cleaning machine. 3. The dishwasher according to claim 1, wherein the washing tank is urged toward the accommodation completion position by a return force from the state. The moving means includes a movable member connected to the cleaning tank via an elastic member,
The movable member is fixed in position relative to the cleaning machine body when the cleaning tank is located at a position closer than the first predetermined distance from the housing completion position,
4. The dishwasher according to claim 3, wherein the movable member is fixed in position with respect to the washing tank when the washing tank is located at a position farther from the housing completion position than the first predetermined distance.   The dishwasher according to claim 4, wherein the elastic member and the movable member are unitized and provided on the outer bottom surface of the washing tank.

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