JP2005230323A - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a dishwasher which enables a user to draw out or push in a washing tub with slight operational force despite a simple structure, thereby improving the operability. <P>SOLUTION: A dishwasher body 1 comprises a washing tub 2 with its upper side open, to be loaded with dishes 3, a washing nozzle 5 for washing the dishes 3 in the washing tub 2, a first slide rail 6 anchored on the outside of the washing tub 2, a first roller 7 rotatably fixed to the washing tub 2, a second slide rail 8 having two sliding faces over and under the first roller 7, anchored on the dishwasher body 1, and a second roller 9, rotatably fixed to the dishwasher body 1 for upwardly supporting the first slide rail 6. The second slide rail 8 is fitted in a slanting direction, with the front side of the dishwasher body 1 down and the back side up. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a dishwasher.

As a conventional dishwasher, the washing tub is pulled out from the main body of the dishwasher, the dishes are stored in the washing tub and the dishes are washed. The washing tub is pulled out from the main body of the dishwasher. In order to prevent the washing tank from falling due to the weight of the tableware stored in the washing tank and the operation force when pushing the washing tank into the dishwasher main body becomes very large, the washing tank is slanted. There is one that slides upward and pulls out (see, for example, Patent Document 1).

Japanese Patent No. 3129312 (page 2-3, FIG. 1)

In the conventional dishwasher, when the washing tank is pulled out due to the weight of the tableware stored in the washing tank, the washing tank is lowered, and the operation force when pushing the washing tank becomes very large. In order to solve this problem, the cleaning tank was slid upwards and pulled out, but when pulling out the cleaning tank, a force in the direction of lifting the cleaning tank was required, and the operating force when pushing the cleaning tank Even if it is small, there is a problem that the operation force when pulling out becomes large.
Also, when the washing tank is pulled out, in order to prevent the washing tank from falling, it is necessary to use a rail that can withstand a heavy load.As a result, the situation of the rail becomes large and the dimensions of the dishwasher body are the same. There were also problems that the size of the tank was reduced, the cleaning capacity was sacrificed, and the rail itself was expensive.

  The present invention has been made to solve the above-described problems, and obtains a dishwasher capable of pulling out / pushing a washing tub with a light operating force with a simple structure and improving operability. It is.

  The dishwasher according to the present invention includes a washing tub that opens upward and stores the tableware, a washing nozzle that cleans the tableware in the washing tub, and a first slide rail that is fixed to the outer surface of the washing tub. A first roller rotatably fixed to the washing tank, a second slide rail fixed to the dishwasher body and having sliding surfaces above and below the first roller, and the dishwasher A dishwasher which is rotatably fixed to the machine body and has a second roller for supporting the first slide rail from below, wherein the washing tank can be pulled out to the front side of the dishwasher body. The slide rail is inclined and arranged so that the front side of the dishwasher main body is lowered.

  According to the present invention, the second slide rail is disposed in the dishwasher main body so as to be inclined so that the front side of the dishwasher main body is lowered, so that the cleaning tank is pushed into the dishwasher main body. A dishwasher capable of reducing the operating force can be obtained.

Embodiment 1 FIG.
1 is a cross-sectional view showing a dishwasher according to Embodiment 1 for carrying out the present invention, in which (a) the washing tub is housed in the dishwasher body, (b) the washing tub is a dishwasher. FIG. 2 is an explanatory view showing the operating state of the rail portion, (a) a state where the washing tub is housed in the dishwasher body, and (b) a state where the washing tub is drawn out from the main body. It is in a state pulled out from the body. In the figure, the dishwasher main body 1 has a front opening, and a cleaning tank 2 having an upper opening is provided in the interior thereof so that it can be drawn forward. Inside the washing tank 2, there are provided a dish basket 4 for storing the tableware 3 and a washing nozzle 5 for spraying washing water to wash the tableware 3. The cleaning tank 2 is provided with a moving rail 6 (first slide rail in the claims), and further provided with a moving roller 7 (first roller in the claims) integrally with the moving rail 6. It has been. A fixed rail 8 (second slide rail in the claims) and a fixed roller 9 (second roller in the claims) are provided on the inner side surface of the dishwasher main body 1. The moving rail 6 is supported from below by a fixed roller 9. The fixed rail 8 has a substantially U-shaped cross section and is composed of an upper rail 8a and a lower rail 8b, and the moving roller 7 is disposed between the upper rail 8a and the lower rail 8b.

  The fixed rail 8 is attached to the inner side surface of the dishwasher main body 1 so as to be inclined so that the drawer side (front side of the dishwasher main body 1) is lowered. The inclination angle θ is θ = tan−1 (y / x), y = A−B, A is the distance between the upper rail 8 a and the lower rail 8 b of the fixed rail 8, and B is the moving roller 7. The diameter, X, is the horizontal distance that the moving roller 7 moves from the state in which the washing tub 2 is housed in the dishwasher main body 1 to the state in which it is pulled out.

An operation when the washing tub of the dishwasher configured as described above is pulled out / pushed in will be described. By pulling out the washing tank 2 stored in the tableware washing machine main body 1 (the state shown in FIGS. 1B and 2B), the upper opening 2a of the washing tank 2 is opened, and the tableware 3 is washed. It can be stored in the tableware basket 4 inside the tank 2. When the tableware 3 is stored, the washing tub 2 is pushed into the tableware washing machine main body 1 (the state shown in FIGS. 1A and 2A). Then, a cleaning operation is started by operating an operation panel (not shown). Water supply, washing, rinsing, etc. are performed automatically, and after the washing operation is completed, the washing tub 2 is pulled out from the dishwasher body 1 and the washed tableware 3 is taken out from the washing tub 2. Thereafter, the washing tub 2 is pushed into the dishwasher main body 1 and stored, and the series of operations is completed.

  Thus, when storing the tableware 3 in the washing tub 2 / taking out the tableware 3 from the washing tub 2, an operation of pulling out / pushing the washing tub 2 out of the tableware washing machine main body 1 is performed. In the state where the washing tub 2 is housed in the dishwasher main body 1, the moving roller 7 is supported by the back part of the fixed rail 8, and the fixed roller 9 supports the front part of the moving rail 6 (FIG. 2 (a). )reference). The center of gravity of the cleaning tank 2 exists between the moving roller 7 and the fixed roller 9, and the moving roller 7 is pressed downward by the weight of the cleaning tank 2. It touches the top surface. At this time, the moving rail 6 is in a horizontal state.

  On the other hand, when the washing tub 2 is pulled out from the dishwasher main body 1 (see FIG. 2B), the moving roller 7 is supported by the front portion of the fixed rail 8, and the fixed roller 9 is located at the back of the moving rail 6. Support the part. At this time, the center of gravity of the cleaning tank 2 exists on the near side of the fixed roller 9. The weight of the cleaning tank 2 is supported by a fixed roller 9, the moving roller 7 is pressed against the upper surface with the fixed roller 9 as a fulcrum, and the moving roller 7 is in contact with the lower surface of the upper rail 8 a of the fixed rail 8.

  In this way, the fixing rail 8 is attached so as to be inclined so that the drawer side (the front side of the dishwasher main body 1) is low, and the cleaning tank 2 is drawn out by setting the inclination angle to the value θ described above. Since the moving roller 7 in contact with the upper rail 8a portion of the fixed rail 8 on the drawer side (the front side of the dishwasher main body 1) is lowered, the height of the moving roller 7 is such that the washing tub 2 can wash dishes. It becomes the same height as the state accommodated in the machine main body 1. Thereby, the moving rail 6 is pulled out in a horizontal state.

  That is, even when the washing tub 2 is housed in the dishwasher main body 1 and the moving roller 7 is in contact with the upper surface of the lower rail 8b, the washing tub 2 is pulled out from the dishwasher main body 1 and the moving roller 7 is Even when the moving rail 6 is in contact with the lower surface of the upper rail 8a, the moving rail 6 is kept in a horizontal state. Therefore, the height at which the cleaning tank 2 fixed to the moving rail 6 is located is kept constant and kept in the horizontal state.

  Thus, when the washing tub 2 is pulled out from the dishwasher main body 1, the washing tub 2 is not lowered due to the weight of the stored tableware 3. An operation force for pushing the washing tub 2 when storing is not increased, and a dishwasher with good operability can be realized.

Embodiment 2. FIG.
FIG. 3 is an explanatory view showing an operation state of the rail portion of the dishwasher in the second embodiment for carrying out the present invention, (a) a state where the washing tank is housed in the dishwasher body, b) A state where the washing tank is pulled out from the basic body of dishwashing. In addition, 1-5 of the said Embodiment 1 is the same also in this Embodiment 2. FIG. In the figure, a moving rail 6 is provided in the cleaning tank 2, and a moving roller 7 is provided integrally with the moving rail 6. A fixed rail 8 and a fixed roller 9 are provided on the inner side surface of the dishwasher main body 1, and the moving rail 6 is supported by the fixed roller 9 from below. The fixed rail 8 has a substantially U-shaped cross section and is composed of an upper rail 8a and a lower rail 8b. A moving roller 7 is disposed between the upper rail 8a and the lower rail 8b.

  The fixed rail 8 is attached to the inner side surface of the dishwasher main body 1 so that the drawer side (the front side of the dishwasher main body 1) is lowered. The inclination angle θ is θ = tan−1 (y / x) + α, y = A−B, A is the distance between the upper rail 8 a and the lower rail 8 b of the fixed rail 8, and B is the moving roller 7. , X is the horizontal distance that the moving roller 7 moves from the state in which the washing tub 2 is housed in the dishwasher main body 1 to the state in which the washing tub 2 is drawn to the near side, and α is the washing tank 2 in the dishwasher main body 1 It is assumed that the moving rail 6 is bent at a deflection angle due to the weight of the cleaning tank 2 in a state of being pulled out from the front.

An operation when the washing tub of the dishwasher configured as described above is pulled out / pushed in will be described. As in the first embodiment, when the tableware 3 (not shown) is stored in and taken out from the washing tub 2, the washing tub 2 is pulled out and pushed in from the tableware washing machine main body 1. In the state where the washing tub 2 is housed in the dishwasher main body 1 (the state shown in FIG. 3A), the moving roller 7 is supported by the inner part of the fixed rail 8, and the fixed roller 9 is in front of the moving rail 6. Support the part. The center of gravity of the cleaning tank 2 exists between the moving roller 7 and the fixed roller 9. The moving roller 7 is pressed downward by the weight of the cleaning tank 2, and the moving roller 7 is the upper surface of the lower rail 8 b of the fixed rail 8. Is in contact with At this time, the moving rail 6 is in a horizontal state.

On the other hand, in the state where the washing tub 2 is pulled out from the dishwasher main body 1 (the state shown in FIG. 3B), the moving roller 7 is supported by the portion in front of the fixed rail 8, and the fixed roller 9 is fixed to the moving rail 6. Support the inner part. At this time, the center of gravity of the cleaning tank 2 is present in front of the fixed roller 9, and the weight of the cleaning tank 2 is supported by the fixed roller 9. At this time, the moving rail 6 is bent by the weight of the cleaning tank 2. The bending angle is α. The moving roller 7 is pressed against the upper surface with the fixed roller 9 as a fulcrum, and the moving roller 7 is in contact with the lower surface of the upper rail 8 a of the fixed rail 8.

In this way, the fixed rail 8 is mounted so as to be inclined so that the drawer side (the front side of the dishwasher body 1) is lowered, and the inclination angle is set to the value θ described above, so that the height of the moving roller 7 is increased. The moving rail 6 can always be kept in a horizontal state by combining the change in position and the deflection of the moving rail 6 due to the weight of the washing tank 2, so that the washing tank 2 is stored in the dishwasher body 1. Even in a state where the moving roller 7 is in contact with the upper surface of the lower rail 8b, the moving rail 6 remains in the state where the washing tub 2 is pulled out from the dishwasher body 1 and the moving roller 7 is in contact with the lower surface of the upper rail 8a. The height at which the washing tub 2 fixed to the moving rail 6 is kept constant can be kept constant and kept horizontal.

In the dishwasher configured as described above, when the washing tub 2 is pulled out from the tableware washing machine body 1, the washing tub 2 is not lowered due to the weight of the stored tableware 3, so When storing in the dishwasher main body 1, the operation force which pushes the washing tank 2 does not become large, and a dishwasher with good operability can be realized.

Embodiment 3 FIG.
FIG. 4 is an explanatory view showing the operating state of the rail portion of the dishwasher in Embodiment 3 for carrying out the present invention, in which (a) the washing tub is housed in the dishwasher body, (b) ) The washing tank is pulled out from the dishwasher body. In addition, 1-5 of the said Embodiment 1 is the same also in this Embodiment 3. FIG. In the figure, the cleaning tank 2 is provided with a moving rail 6, and a moving roller 7 is provided integrally with the moving rail 6. The fixed rail 8 and the fixed roller 9 are provided on the inner side surface of the dishwasher body 1, and the moving rail 6 is supported by the fixed roller 9 from below. The fixed rail 8 has a substantially U-shaped cross section and is composed of an upper rail 8a and a lower rail 8b. A moving roller 7 is disposed between the upper rail 8a and the lower rail 8b. The moving rail 6 is formed by bending upward by a predetermined angle α from a portion located in the vicinity of the fixed roller 9 when the washing tub 2 is pulled out from the dishwasher body 1.

  The fixed rail 8 is attached to the inner side surface of the dishwasher main body 1 so that the drawer side (the front side of the dishwasher main body 1) is lowered. The inclination angle θ is θ = tan−1 (y / x), y = A−B, A is the distance between the upper rail 8 a and the lower rail 8 b of the fixed rail 8, and B is the moving roller 7. The diameter x is a horizontal distance that the moving roller 7 moves from the state in which the washing tub 2 is housed in the dishwasher main body 1 to the state in which the washing tank 2 is pulled out.

  An operation when the washing tub of the dishwasher configured as described above is pulled out / pushed in will be described. As in the first embodiment, when the tableware 3 (not shown) is stored in and taken out from the washing tub 2, the washing tub 2 is pulled out and pushed in from the tableware washing machine main body 1. In the state where the washing tub 2 is housed in the dishwasher main body 1 (the state shown in FIG. 4A), the moving roller 7 is supported at the back of the fixed rail 8, and the fixed roller 9 is in front of the moving rail 6. Support the part. The center of gravity of the cleaning tank 2 exists between the moving roller 7 and the fixed roller 9. The moving roller 7 is pressed downward by the weight of the cleaning tank 2, and the moving roller 7 is the upper surface of the lower rail 8 b of the fixed rail 8. Is in contact with

  On the other hand, in the state where the washing tub 2 is pulled out from the dishwasher main body 1 (the state shown in FIG. 4B), the moving roller 7 is supported by the portion in front of the fixed rail 8, and the fixed roller 9 is fixed to the moving rail 6. Support the inner part. At this time, the center of gravity of the cleaning tank 2 is present in front of the fixed roller 9, and the weight of the cleaning tank 2 is supported by the fixed roller 9. At this time, the moving rail 6 is bent by the weight of the cleaning tank 2. The deflection angle is a predetermined angle α. The moving roller 7 is pressed against the upper surface with the fixed roller 9 as a fulcrum, and the moving roller 7 is in contact with the lower surface of the upper rail 8 a of the fixed rail 8.

  In this way, the fixed rail 8 is attached so that the drawer side (front side of the dishwasher main body 1) is lowered, the inclination angle is set to the value θ described above, and the washing tub 2 is attached to the dishwasher main body 1. By bending the front of the moving rail 6 from the fixed roller 9 in the retracted state upward by an angle α, the moving rail 6 is bent by the angle α due to the weight of the cleaning tank 2, and the moving rail 6 becomes linear, and the moving roller By combining the height of 7 and the bending of the moving rail 6, the moving rail 6 can be kept in a horizontal state.

In the dishwasher configured as described above, since the moving rail 6 is in a horizontal state in a state where the washing tub 2 is pulled out from the dishwasher main body 1, the washing tub 2 is stored in the dishwasher main body 1. In this case, the operation force for pushing the washing tub 2 is not increased, and a dishwasher with good operability can be realized.

It is sectional drawing of the dishwasher which shows Embodiment 1 of this invention. It is explanatory drawing which shows the operation state of the rail part of the dishwasher which shows Embodiment 1 of this invention. It is explanatory drawing which shows the operation state of the rail part of the dishwasher which shows Embodiment 2 of this invention. It is explanatory drawing which shows the operation state of the rail part of the dishwasher which shows Embodiment 3 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Tableware washing machine body, 2 washing tank, 3 tableware, 4 tableware basket, 5 washing nozzle, 6 moving rail, 7 moving roller, 8 fixed rail, 8a upper rail, 8b lower rail, 9 fixed roller.

Claims (4)

A cleaning tank that opens upward and stores dishes, a cleaning nozzle that cleans the dishes in the cleaning tank, a first slide rail that is fixed to the outer surface of the cleaning tank, and a rotation fixed to the cleaning tank A first roller that is fixed to the dishwasher main body, a second slide rail that has sliding surfaces above and below the first roller, and is rotatably fixed to the dishwasher main body, And a second roller for supporting the first slide rail from below, wherein the washing tub can be pulled out to the front side of the dishwasher body, wherein the second slide rail is the dishwasher body. A dishwasher characterized in that the front side of the dish is inclined so as to be lowered. The second slide rail is composed of an upper rail and a lower rail, and the mounting inclination angle θ of the second slide rail is set to θ = tan−1 ((the upper and lower rails of the second slide rail. 2. The dishwasher according to claim 1, wherein the distance is expressed by: distance-diameter of first roller / movable distance of first roller. The second slide rail is composed of an upper rail and a lower rail, and the mounting inclination angle θ of the second slide rail is set to θ = tan−1 ((the upper and lower rails of the second slide rail. Interval-diameter of first roller) / movable distance of first roller) + deflection angle of first slide rail when the washing tub is pulled out from the dishwasher body to the front side) The dishwasher according to claim 1. A portion of the first slide rail located in the vicinity of the second roller is bent upward by a predetermined angle α in a state where the washing tub is drawn to the front side from the dishwasher body. A dishwasher according to claim 2.

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