JP5452646B2 - washing machine - Google Patents

Description

  The present invention relates to a washing machine for washing washed items such as tableware.

  As this type of washer, the tableware (washed material) housed in the washing chamber is washed by spraying a washing liquid from a pair of upper and lower rotary washing arms, and when the washing is completed, a pair is also provided vertically. 2. Description of the Related Art Commercial dishwashers are known in which rinse water is rinsed by spraying rinse water from a rotary rinse arm.

  In such a dishwasher, washing and rinsing are performed while the washing liquid and rinsing water are scattered violently in the washing room. During such washing and rinsing, the wash room is closed by closing the retractable door. A sealed space is formed so that the cleaning liquid and the rinse water do not leak to the outside.

Also, the cleaning liquid and rinsing hot water are designed to be discharged to the outside through a drain pipe protruding at one end of the lower part of the cleaning chamber. When movable, the cleaning liquid and rinsing hot water that overflows one end of the water distribution pipe are used. By draining to the outside and removing the protruding portion of the drain pipe from the main body at the end of movement, the cleaning liquid and rinsing hot water accumulated in the lower part of the cleaning chamber are completely drained.
Details of such a commercial dishwasher are disclosed in, for example, the following publicly known documents.

JP 2003-204914 A

  By the way, the above-mentioned conventional commercial dishwasher has a problem that the operator's hand gets dirty when the protruding portion of the drain pipe protruding to the lower part of the cleaning chamber is removed from the main body. In the case of a conventional commercial dishwasher, the operator needs to wash his dirty hands by removing the protruding portion of the drain pipe, so the workability is poor. In particular, since workability is regarded as important in the commercial market, it is extremely important to eliminate factors that reduce workability.

  This invention is made | formed in view of the situation mentioned above, and it aims at avoiding getting a worker's hand dirty at the time of washing | cleaning liquid and rinse water drainage.

  In order to achieve the above object, in the present invention, as a first solution, the lower end of the cleaning chamber is formed by removing from the main body a protruding portion of a drain pipe in which one end protrudes from below into the cleaning chamber and a filter is provided above. A cleaning machine that discharges the cleaning liquid and rinsing water collected in the outside to the outside is adopted, and the protrusion includes a movable handle that automatically moves up and down by the action of gravity according to the presence or absence of a filter.

  As a second solving means, in the first means, the movable handle rotates around a horizontal axis provided in the protruding portion, and a gripping portion is formed at one end spaced from the horizontal axis and the horizontal handle is provided. A weight is provided at the other end separated from the shaft in a direction different from the grip portion. When the upper filter is removed, the grip portion is rotated around a horizontal axis by gravity acting on the weight. Adopts a means of moving to a position higher than one end of the protrusion.

  According to the present invention, the protrusion includes the movable handle that automatically moves up and down by the action of gravity according to the presence or absence of the filter, so that the movable handle protrudes by removing the filter located above the protrusion. Move to a position higher than one end of the part. Therefore, it is possible to avoid the operator's hand from touching the cleaning liquid and the rinse water when removing the protruding portion, that is, it is possible to prevent the operator's hand from becoming dirty.

It is a perspective view which shows the external appearance structure of the dishwasher concerning one Embodiment of this invention. It is a horizontal sectional view showing composition and an operation of hollow part 1b in one embodiment of the present invention. It is an arrow line view which shows the structure and effect | action of the bottom face 1e of the hollow part 1b in one Embodiment of this invention. It is a perspective view which shows the edge part structure of the water pipe 7 in one Embodiment of this invention. It is explanatory drawing which shows the effect | action of the edge part structure of the water distribution pipe 7 in one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an external configuration of a dishwasher according to the present embodiment. As shown in this figure, the tableware washing machine is provided with a retractable door 2 on one side (front surface) of a box-shaped main body 1. Forming. In the cleaning chamber 3, a rotary cleaning arm 4 and a rinsing arm 5 are provided at the upper and lower parts, respectively, and a removable filter 6 is provided below the lower cleaning arm 4 and the rinsing arm 5. Yes. The dishwasher accommodates tableware (washed material) stored in a predetermined rack between the upper and lower cleaning arms 4 and the rinsing arm 5 in the cleaning chamber 3.

  Further, as shown in the figure, the door 2 is provided with a protruding plate 2b that extends along the vicinity of the left and right ends and the vicinity of the upper end of the inner surface 2a (the surface on the cleaning chamber 3 side) and protrudes toward the main body 1 side. On the other hand, a recess 1b that accommodates the protruding plate 2b is provided on the opposing surface 1a of the main body 1 that faces the door 2. In the state where the door 2 is closed, the projecting plate 2b is accommodated in the recess 1b, whereby the sealing performance of the cleaning chamber 3 is improved.

FIG. 2 is a horizontal sectional view in which a part of the recess 1b is cut along a horizontal plane.
As shown in this figure, the recess 1b is formed by welding a metal plate 1d bent in a crank shape to the inner surface of an L-shaped metal plate 1c that forms the cleaning chamber 3 and forms the facing surface 1a. . The bottom surface 1e (one surface of the sheet metal 1d) facing the door 2 and extending in the vertical direction in the recess 1b configured as described above is opposed to the facing surface 1a extending in the vertical direction, as shown in FIG. The lower side is inclined so as to recede from the tip of the protruding plate 2b.

  FIG. 4 is a perspective view showing the end structure of the drain pipe 7 provided on the lower side of the filter 6. The drain pipe 7 drains cleaning water and rinsing hot water accumulated in the lower part of the cleaning chamber 3. One end of the drain pipe 7 protrudes into the cleaning chamber 3 from below and is detachable as shown in FIG. It is configured. A movable handle 8 that automatically moves up and down by the action of gravity according to the presence or absence of the filter 6 is provided at the tip of the protruding portion 7A.

  The movable handle 8 rotates around a horizontal axis 9 provided on the projecting portion 7A, and a grip 10 is formed at one end spaced from the horizontal shaft 9, and the grip 10 and the horizontal shaft 9 are A weight 11 is provided at the other end spaced apart in different directions. That is, the movable handle 8 is formed by bending a sheet metal into a U-shape so that the center part is a grip part 10 and metal plates that are weights 11 are attached to both ends.

  In such a movable handle 8, the direction of the gripping portion 10 around the horizontal axis 9 and the direction of the weight 11 are displaced by a predetermined angle, not the opposite directions as shown in the figure. In addition, a reflecting plate 12 is provided between the horizontal shaft 9 and the grip portion 10.

Then, the effect | action and effect of this tableware washing machine comprised in this way are demonstrated.
When washing dishes using the dishwasher, the dishes stored in the rack are accommodated in the washing room 3 by tilting (opening) the door 2. Then, with the door 2 closed, the tableware is cleaned by spraying cleaning water from the upper and lower cleaning arms 4 onto the tableware, and when the cleaning is completed, rinsing water is sprayed from the upper and lower rinse arms 5 to the tableware to rinse off the cleaning liquid. Then, the washing water and the rinsing water are filtered by the filter 6 provided at the lower part of the washing chamber 3 and drained to the outside.

  Here, since the washing arm 4 and the rinsing arm 5 rotate and spray the washing water and the rinsing hot water on the tableware, the washing water and the rinsing hot water hit the tableware are scattered in all directions in the washing room 3. become. Then, as shown in FIG. 2, a part of the cleaning water and the rinsing water splashed toward the door 2 in the cleaning chamber 3 hits the door 2 and enters the hollow portion 1b through the gap with the protruding plate 2b to enter the bottom surface 1e. It hits.

  A part of the washing water and the rinsing water is reflected by the bottom surface 1e, but the bottom side of the bottom surface 1e extends backward from the tip of the protruding plate 2b with respect to the opposing surface 1a extending in the vertical direction as shown in FIG. Since it is inclined to the state, the reflection angle θout in the vertical direction of the cleaning liquid and the rinsing water is smaller than the incident angle θin, so that the reflection at the bottom surface and leakage to the outside are reduced. That is, in this dishwasher, since the reflection angle θout at the bottom surface 1e is smaller than the incident angle θin, the reflection direction of the cleaning liquid and the rinse water reflected from the bottom surface 1e is changed to the lower side of the door 2 so that the door 2 Leakage from the side of the outside is reduced.

  For example, by providing a sealing material made of rubber or the like on the opposing surface of the main body 1 and the door 2, the gap between the main body 1 and the door 2 is substantially eliminated, and leakage from the side of the cleaning liquid and rinsing water is reduced. However, such a leak prevention method using a sealing material is not preferable in terms of durability. That is, not the normal water but the cleaning liquid and the rinsing water are scattered in the cleaning chamber 3, so that the sealing material is rapidly deteriorated and the maintainability is poor.

  Moreover, in this tableware washing machine, when the operation is finished, the cleaning liquid and the rinsing hot water accumulated in the lower part of the cleaning chamber 3 are drained to the outside by removing the protruding portion 7A from the drain pipe 7. As a procedure at this time, the operator removes the filter 6 provided at the lower part of the cleaning chamber 3, and then removes the protruding portion 7 </ b> A located on the lower side of the filter 6.

  Here, in a state where the filter 6 is mounted above the protruding portion 7A, the movable handle 8 rotates around the horizontal axis 9 when the lower surface of the filter 6 comes into contact, and the gripping portion 10 is moved to the protruding portion 7A. The posture is located on the side. That is, the movable handle 8 is in a tilted position by being pressed from above by the filter 6.

  On the other hand, when the filter 6 above the protruding portion 7A is removed, the movable handle 8 is rotated around the horizontal axis 9 by the gravity acting on the weight provided to the movable handle 8, and is gripped. The part 10 moves to a position higher than the tip of the protruding part 7A. That is, the water surface of the cleaning liquid and the rinsing water is at the tip of the projecting portion 7A, but when the filter 6 is removed, the gripper 10 automatically moves to a position higher than the water surface of the cleaning liquid and the rinsing water.

  Therefore, in this dishwasher, it is possible to avoid the operator's hand from touching the cleaning liquid and the rinse water when removing the protruding portion 7A, and thus easily avoiding the operator's hand from becoming dirty. Is possible. In addition, the movable handle 8 automatically changes its posture using the action of gravity without artificially applying power using a motor or the like, so that the grip 10 is higher than the surface of the cleaning liquid and rinsing water. Since it is moved to the position, it is low in cost and easy to maintain.

  In addition, FIG. 5 shows a state in which the gripping part 10 is located immediately above the tip of the projecting part 7A, but actually the weight 11 is located at a position lower than the position shown in the figure, The gripping part 10 is inclined with respect to the position immediately above the tip of the protruding part 7A. Therefore, when the drainage is finished and the filter 6 is mounted again upward, the movable handle 8 easily falls down. If the filter 6 is to be remounted upward with the gripping part 10 positioned immediately above the tip of the protrusion 7A, the movable handle 8 does not easily fall down, and the filter 6 is difficult to reattach.

  Further, since the movable handle 8 includes the reflecting plate 12, the cleaning liquid and the rinsing water sprayed from the tip of the protruding portion 7A when the protruding portion 7A is removed from the drain pipe 7 are blocked by the reflecting plate 12, and the operator's It is possible to avoid touching the hand.

In addition, this invention is not limited to the said embodiment, For example, the following modifications can be considered.
(1) In the above-described embodiment, the bottom surface 1e that faces the door 2 and extends in the up-down direction in the recessed portion 1b retreats from the front end of the protruding plate 2b with respect to the facing surface 1a that extends in the vertical direction. Tilt to state. That is, in the above embodiment, the bottom surface 1e of the recess 1b is a flat surface that is inclined at a certain angle with respect to the facing surface 1a, but the inclination angle changes according to the position of the door 2 in the vertical direction, that is, the recess. The bottom surface 1e of the part 1b may be a curved surface. For example, the inclination angle may be set relatively large on the upper side of the door 2, and the inclination angle may be gradually reduced toward the lower side.

(2) In the above embodiment, the configuration shown in FIGS. 4 and 5 is adopted as the configuration of the movable handle 8 that automatically moves up and down by the action of gravity according to the presence or absence of the filter 6. The configuration of the formula handle is not limited to this. For example, in the above embodiment, the two weights 11 are provided, but this is because the weight balance is taken into consideration. If the weight balance may be sacrificed, the weight 11 may be provided only on one side.

DESCRIPTION OF SYMBOLS 1 ... Main body, 1a ... Opposite surface, 1b ... Recessed part, 2 ... Door, 2a ... Inner side surface, 2b ... Projection board, 3 ... Cleaning chamber, 4 ... Cleaning arm, 5 ... Rinsing arm, 6 ... Filter, 7 ... Drain Tube, 7A ... Projection, 8 ... Movable handle, 9 ... Horizontal axis, 10 ... Holding part, 11 ... Weight, 12 ... Reflector

Claims (2)

A washing machine that discharges the cleaning liquid and rinsing hot water accumulated in the lower part of the washing chamber by removing from the main body a protruding portion of a drain pipe in which one end protrudes from below into the washing chamber and a filter is provided above,
The protrusion includes a movable handle that automatically moves up and down by the action of gravity according to the presence or absence of the filter ,
The movable handle is rotated around a horizontal axis provided in the projecting portion, and a grip portion is formed at one end separated from the horizontal shaft, and is separated from the horizontal shaft in a direction different from the grip portion. A weight is provided at the other end, and a reflecting plate is provided between the horizontal axis and the grip portion. When the upper filter is removed, the weight rotates around the horizontal axis due to gravity acting on the weight. The washing machine is characterized in that the gripper moves to a position higher than one end of the protrusion . 2. The washing machine according to claim 1 , wherein the movable handle is displaced by a predetermined angle, not the direction opposite to the direction of the gripping part and the direction of the weight with respect to the horizontal axis .

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