JP4874142B2 - Dishwasher - Google Patents

Description

  The present invention relates to a tableware washing machine, and more particularly to a table for storing tableware by pulling out a washing tank from a main body.

  Conventionally, “a dishwasher in which a washing tank is pulled out horizontally is provided with a dishwasher that can be pulled out and pushed in with a small force. As a technique for the purpose, “when the cleaning tank 20 is pulled out and pushed into the cleaning machine body 10, a slide rail 30 that guides the cleaning tank 20 is installed in the cleaning machine body 10 so as to be tiltable. And since it inclines to the front side when pulling out the washing tank 20, and it tilts to the rear side when pushing it in, the pull-out and push-in operation becomes easy. Further, an impact buffer member 27 is disposed on the drawer / push-in stopper 26 to absorb the impact upon completion of the drawer / push-in operation. Furthermore, the cover body 41 which obstruct | occludes the upper open part 21 of the washing tank 20 is comprised, and the cover body 40 is raised prior to tilting of a slide rail. Is proposed (Patent Document 1).

JP 2004-261259 A (summary)

The conventional dishwasher as described above has a problem that when the washing tank is pulled out from the main body, the washing tank itself and its peripheral configuration and the weight of the tableware are applied to the washing tank, so that the drawing work is heavy.
The present invention has been made to solve the above-described problems, and it is an object of the present invention to reduce the force required for the work for pulling out the cleaning tank and to improve the pulling workability.

The dishwasher according to the present invention is a dishwasher provided with a washing tank slidably arranged in a housing having an opening in the front, and is provided on the back surface of a door provided on the front surface of the washing tank. A handle portion housed in the casing together with the cleaning tank, and applying power to the cleaning tank so that the cleaning tank is moved forward from the front end of the opening. And an opening device for sliding in the direction of the opening of the body.

  According to the dishwasher according to the present invention, since the opening device applies power to the washing tank and slides it in the direction of the opening, the force required for the drawing work is reduced, and the drawing workability can be improved.

Embodiment 1 FIG.
1 is a cross-sectional view illustrating an internal configuration of a dishwasher according to Embodiment 1 of the present invention.
In the main body case 1 formed in a box shape that opens forward, a cleaning tank 2 that opens upward and can be pulled out forward from the main body case 1 is stored, and the tableware 3 is stored in the cleaning tank 2. A tableware basket 4 is provided.
The cleaning tank 2 can be pulled forward by a rail 5 provided in the main body housing 1 and the cleaning tank 2. Further, the cleaning tank 2 is provided with a latch device 6 for closing and holding the movement of the cleaning tank 2, and when the cleaning tank 2 is slid to the inside of the main body housing 1 to a predetermined closed position, Movement is held closed. For example, a spring 18 is used as the closing and holding means.

A heater 7 for heating the cleaning water in the cleaning tank 2 is provided in the cleaning tank 2, a cleaning pump 8 is provided on the lower surface of the cleaning tank 2, and the cleaning water is sprayed from the cleaning nozzle 9 and stored in the tableware basket 4. The tableware 3 is configured to be washed.
The water supply valve 10 supplies tap water to the cleaning tank 2. The washing water in the washing tank 2 is drained by the drain pump 11.
An inner lid 12 is fixed to the dishwasher main body 1 on the upper surface of the washing tub 2. The inner lid 12 is inside the dishwasher body 1 and closes the opening above the washing tank 2 when the washing tank 2 is stored in the dishwasher body 1.
A door 13 and an operation panel 14 are provided on the front surface of the cleaning tank 2, and an operation unit 15 is provided on the operation panel 14.
The operation unit 15 receives an operation instruction input from the user and outputs an operation signal corresponding to the input to the control device 21.
The opening device 19 is attached below the cleaning tank 2 and automatically slides the cleaning tank 2 forward in accordance with an instruction from the control device 21. The configuration and operation of the opening device 19 will be described later with reference to FIG.
A handle portion 22 is provided at a position corresponding to the back of the operation panel 14 (inside the main body housing 1).

  The “lock device” in the first embodiment corresponds to the latch device 6.

  Here, prior to the description of the remaining configuration, the configuration of a conventional dishwasher will be described in order to facilitate understanding of the configuration of the dishwasher according to the present invention.

FIG. 11 is a cross-sectional view illustrating an internal configuration of a conventional dishwasher. The same components as those in FIG.
A handle portion 16 is provided on the operation panel 14. The handle portion 16 is for the user to grip and pull out the cleaning tank 2 when pulling it out of the main body housing 1.

FIG. 12 is a front view of a conventional dishwasher.
The operation unit 15 is provided with a “power” button and a “start / pause” button 17. A handle portion 16 is disposed next to the operation portion 15.

In such a conventional dishwasher, when the user pulls out the washing tub 2 from the main body housing 1, the user presses (1) the “start / pause” button 17 to stop the operation, and (2) the door. 13 is opened and (3) the handle 16 is grasped and the washing tank 5 is pulled out.
At this time, since the weight of the washing tank 2, the heater 7, the washing pump 8, the water supply valve 10, the drainage pump 11, and the like and the weight of the tableware 3 are applied to the washing tank 2, the user may feel that the drawing operation is heavy. .
In addition, since the spring 18 is used to hold the latch device 6 closed, a large force is required when unlocking the latch device 6 and the drawing work is made heavy.

Therefore, the dishwasher according to the present invention is newly provided with an opening device 19 that supplies power to the washing tub 2 to assist the drawing work, thereby improving the drawing workability.
Hereinafter, the description returns to the remaining configuration and operation of the first embodiment.

FIG. 2 is a front view of the dishwasher according to the first embodiment.
In FIG. 2, the operation unit 15 is newly provided with an “OPEN” button 20.

  FIG. 3 is a diagram illustrating a configuration example of the opening device 19. The opening device 19 includes a mechanism using transmission power means using a rack and a pinion, and can have various configurations such as a cam mechanism or a linear mechanism.

FIG. 3A is a top view of the opening device 19.
In the figure, the slide shaft 53 slides back and forth by the gear operation of the pinion 51a as the pinion 51a connected to the motor 51 rotates. By this sliding operation, when the cleaning tank 2 is pulled out from the main body housing 1, power for assisting the user's pulling out operation can be applied to the cleaning tank 2.

  FIG. 3B is a side view of the opening device 19. The slide shaft 53 is held at both ends by the holding portion of the rack 51b.

FIG. 3C is a side view of the state in which the slide shaft 53 is slid.
When the cleaning tank 2 is pulled out, the slide shaft 53 slides to the position of the pop-out position detection device 54 and immediately returns to the position of the standby position detection device 55.
The slide amount of the slide shaft 53 will be described with reference to FIG.

  The “detection means” in the first embodiment corresponds to the pop-out position detection device 54 and the standby position detection device 55.

FIG. 4 is a functional block diagram for explaining the drive mechanism of the opening device 19.
When the user presses the “OPEN” button of the operation unit 15, an operation signal corresponding to this is output and output to the control device 21. The control device 21 drives and controls the motor 51 via a motor driver circuit.
Further, the pop-out position detection device 54 and the standby position detection device 55 are connected to the control device 21, and the respective detection results are output to the control device 21. Based on the detection result, the control device 21 drives and controls the motor 51 according to an operation flow described later with reference to FIG.

  FIG. 5 is an operation flowchart of the opening device 19. Hereinafter, each step will be described.

(S500)
When the user presses the “OPEN” button 20 of the operation unit 15, an operation signal to that effect is output to the control device 21, and this operation flow starts.
(S501)
The control device 21 drives the motor 51 in the forward rotation direction via the motor driver circuit.
This corresponds to rotating the motor 51 in the direction from the state of FIG. 3B toward the state of FIG. Due to the forward rotation of the motor 51, the slide shaft 53 pops out, whereby forward slide power is applied to the cleaning tank 2.
(S502)
The control device 21 continues the forward rotation drive of the motor until the pop-out position detection device 54 detects that the slide shaft 53 has reached a predetermined pop-out position.

(S503)
When the control device 21 receives the detection signal from the pop-out position detection device 54, the control device 21 drives the motor in the reverse rotation direction. This corresponds to rotating the motor 51 in the direction from the state of FIG. 3C toward the state of FIG.
Due to the reverse rotation of the motor 51, the slide shaft 53 slides in the direction of the original position.
(S504)
The control device 21 continues the reverse rotation of the motor until the standby position detection device 55 detects that the slide shaft 53 has reached the predetermined standby position.

(S505)
When receiving the detection signal from the standby position detection device 55, the control device 21 stops the motor.

  By the above operation, the opening device 19 applies a predetermined sliding amount of sliding power to the cleaning tank 2 to open the door 13, and then returns to the original position.

  If the slide range of the slide shaft 53 detected by the pop-out position detection device 54 and the standby position detection device 55 is not within a predetermined range, an error message is output by outputting a signal to that effect to the control device 21. For example, the notification may be performed.

FIG. 6 explains the slide amount of the slide shaft 53.
In FIG. 6, the distance A is a distance from the front opening end of the main body housing 1 to the handle portion 22 in a state where the cleaning tank 2 is slid by the opening device 19. This corresponds to the slide amount of the slide shaft 53.
The distance B is a distance from the state in which the latch device 6 holds the cleaning tank 2 closed to the unlocked state.
The slide amount of the slide shaft 53 is set such that distance A> distance B. Therefore, in a state where the cleaning tank 2 is automatically slid by the opening device 19, the user can draw the remaining distance by placing a hand on the handle portion 22.

FIG. 7 shows a state in which the user has pulled the cleaning tank 2 drawn out by the opening device 19 as shown in FIG. 6 to the fully opened position for setting the tableware 3.
After the cleaning tank 2 is automatically pulled out by the opening device 19, the user can draw the remainder of the cleaning tank 2 by placing a hand on the handle portion 22.
In FIG. 7, the slide shaft 53 of the opening device 19 is returned to the original position by the reverse rotation of the motor 51.

  As described above, according to the first embodiment, the opening device 19 operates when the “OPEN” button 20 is pressed, and the washing tank 2 is automatically pulled out until the latch device 6 is unlocked. The working force required to pull out the cleaning tank 2 is reduced, and the pulling workability can be improved.

Embodiment 2. FIG.
FIG. 8 is a cross-sectional view showing the internal configuration of the dishwasher according to Embodiment 2 of the present invention.
In the first embodiment, the opening device 19 is attached below the cleaning tank 2, but is attached to the main body housing 1 in FIG. 8. Other configurations including the configuration and operation of the opening device 19 are the same as those in the first embodiment.
The opening device 19 applies power in the direction of the opening to the cleaning tank 2 by the slide shaft 53 popping out similarly to the first embodiment, and assists the user's drawing work.
In the second embodiment, the same effect as in the first embodiment can be obtained.

Embodiment 3 FIG.
FIG. 9 is a top view of the dishwasher according to Embodiment 3 of the present invention. Here, a state in which the cleaning tank 2 is pulled out is illustrated.
In the third embodiment, on the upper surface of the operation panel 14, an operation unit 15a in which buttons similar to the operation unit 15 are arranged is provided.
The operation unit 15 a is housed in the main body housing 1 together with the handle portion 22 in a state where the cleaning tank 2 is housed in the main body housing 1, but as the cleaning tank 2 is pulled out. , Pulled out of the main body housing 1.

In FIG. 6 of the first embodiment, it has been described that the distance A is set to be larger than the distance B necessary for unlocking the latch device 6, but similarly, the operation unit 15a and the handle unit 22 are the main body. The distance A may be set so as to slide until it comes out before the front end of the opening of the housing 1.
By setting the distance A by the opening device 19 in this way, the operation portion 15a and the handle portion 22 are reliably pulled out of the main body housing 1.

  Although the example in which the operation unit 15a is arranged on the upper surface of the operation panel 14 has been described with reference to FIG. 9, the arrangement position is not limited to the upper surface. The same effect can be obtained as long as the operation unit 15a is disposed at a position in the main body housing 1 together with the cleaning tank 2.

Embodiment 4 FIG.
FIG. 10 is a cross-sectional view showing the internal configuration of the dishwasher according to Embodiment 4 of the present invention. In FIG. 10, the same components as those in FIG. 1 described in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The dishwasher according to the fourth embodiment is provided with a handle 60 on the surface of the door 13 below the operation panel 14. Even in a state where the handle portion 22 is not pulled out of the main body housing 1, the user can pull out the cleaning tank 2 by placing a hand on the handle portion 60.

Further, the handle portion 60 is provided with a handle portion sensor 61.
The handle part sensor 61 can be configured by, for example, a piezoelectric sensor such as a touch sensor, an infrared sensor such as an area sensor that recognizes that the user's hand is present in the handle part 60, and the like.

  When the handle portion sensor 61 detects that the handle portion 60 has been touched, a signal to that effect is output to the control device 21. The control device 21 drives the opening device 19 according to an operation flow similar to that shown in FIG.

  That is, according to the fourth embodiment, the user can use the handle sensor 61 in the same manner as the “OPEN” button 20 by a natural operation of putting the hand on the handle 60, which is convenient for the user. A good dishwasher can be provided.

It is sectional drawing showing the internal structure of the tableware washing machine which concerns on Embodiment 1. FIG. 1 is a front view of a dishwasher according to Embodiment 1. FIG. It is a figure which shows the structural example of the opening apparatus. It is a functional block diagram explaining the drive mechanism of the opening device. It is an operation | movement flowchart of the opening apparatus 19. FIG. The slide amount of the slide shaft 53 will be described. The state where the washing tank 2 drawn out by the opening device 19 by a predetermined amount is drawn to the fully opened position is shown. It is sectional drawing showing the internal structure of the dishwasher which concerns on Embodiment 2. FIG. It is a top view of the dishwasher which concerns on Embodiment 3. It is sectional drawing showing the internal structure of the dishwasher which concerns on Embodiment 4. It is sectional drawing showing the internal structure of the conventional tableware washing machine. It is a front view of the conventional dishwasher.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Case, 2 Washing tank, 3 Tableware, 4 Tableware basket, 5 Rail, 6 Latch device, 7 Heater, 8 Washing pump, 9 Washing nozzle, 10 Water supply valve, 11 Drain pump, 12 Inner lid, 13 Door, 14 Operation Panel, 15 operation section, 15a operation section, 16 handle section, 17 start / pause button, 18 spring, 19 opening device, 20 OPEN button, 21 control device, 22 handle section, 51 motor, 51a pinion, 51b rack, 53 slide shaft, 54 pop-up position detection device, 55 standby position detection device, 60 handle portion, 61 handle portion sensor.

Claims (7)

A dishwasher equipped with a washing tank slidably arranged in a housing having an opening in the front,
A handle portion provided on the back surface of the door provided on the front surface of the cleaning tank and housed in the housing together with the cleaning tank;
An opening device that applies power to the cleaning tank and slides the cleaning tank in the direction of the opening of the housing until the handle part comes out ahead of the front end of the opening. And dishwasher. A dishwasher equipped with a washing tank slidably arranged in a housing having an opening in the front,
An operation unit provided on an outer surface of the cleaning tank and housed in the housing together with the cleaning tank;
And wherein the cleaning tank by the addition of power, the operation portion is provided with opening devices and for sliding the cleaning tank until it exits to the front than the front end portion of the opening in the opening direction of the housing Dishwasher to do.   The dishwasher according to claim 1 or 2, wherein the opening device is attached to the washing tank.   The dishwasher according to claim 1 or 2, wherein the opening device is attached to the housing. A locking device for closing and holding the sliding of the washing tank;
The opening device is
The dishwasher according to any one of claims 1 to 4, wherein the washing tank is slid beyond a distance where the lock device is unlocked. The dishwasher according to any one of claims 1 to 5, further comprising detection means for detecting whether or not the amount by which the opening device slides the washing tank is within a predetermined range. While providing a handle on the front surface of the washing tank,
A sensor is provided for detecting that the object to be detected is hung on the handle portion,
The opening device is
When receiving a signal that the sensor has detected that the object to be detected has been hung on the handhold,
The tableware washing machine according to any one of claims 1 to 6 , wherein power is applied to the washing tank to slide it toward the opening of the housing.

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