JPH06312086A - Detergent feeding device for washing machine - Google Patents

Abstract

PURPOSE:To prevent the coagulation of detergent due to the water splashing in an outlet part and prevent the spill of the detergent splashing in an outlet part and prevent the spill of the detergent CONSTITUTION:A discharge port body 13 is installed at the outlet part of a hopper 8 which sends out the stored powdery detergent by the operation of a detergent sending-out member, and a driving device including a spring 35 for driving the discharge port body 13 is installed, and the discharge port body 13 is set close to a washing tank 3 when the detergent is to be supplied. The detergent is directly supplied into the washing tank 3, and in the waiting for the supply of detergent, the discharge port body 13 is set to an upwardly set state, and the spill of the detergent is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent supply device for a washing machine which supplies powdery detergent from above a washing tub.

[0002]

2. Description of the Related Art Conventionally, a washing machine provided with a detergent supply device for supplying powdered detergent from above a washing tub. In the case of this, specifically, a storage section is provided above the washing tub, and the detergent stored in the storage section is delivered from the outlet section by the operation of the detergent delivery member and dropped onto the water supply channel immediately below, and It is designed to be supplied into the washing tub by the water flowing on the water supply channel.

[0003]

However, in the above-mentioned one, the droplets of water flowing on the water supply passage reach the outlet portion and moisten the detergent therein, so that the detergent is solidified in the outlet portion and smoothly. It had a problem that it could not be sent.

On the other hand, there is also provided a detergent which is dropped into the washing tub directly from the outlet and supplied. In this case, since the splash of water flowing on the water supply channel does not reach the outlet, the detergent in the outlet can be smoothly delivered without solidifying.

However, there is a problem in that the finish of the laundry is impaired because the detergent that spills due to its operating vibration directly enters into the washing tub at times other than when the detergent is being supplied, such as during rinsing and dehydration.

The present invention has been made in view of the above circumstances, and therefore an object thereof is to supply a detergent for a washing machine which does not harden the detergent in the outlet portion and does not impair the finish of the laundry. To provide the equipment.

[0007]

In order to achieve the above object, in the detergent supply device for a washing machine of the present invention, a storage section is provided above the washing tub, and the powdered detergent stored in the storage section is used. A discharge port that is supplied from an outlet by the operation of a detergent discharge member and is provided in communication with the outlet, and the discharge port is turned upward during a detergent supply standby. And a driving device that drives the container so as to face the inside of the washing tub at the time of supply.

In this case, it is preferable that the driving device has a structure in which the discharge port body is held in an upward state by the force of the spring.

Further, the detergent delivery member comprises a coil-shaped first delivery member and a solid screw-shaped second delivery member, and the second delivery member is located in the outlet portion. good.

[0010]

According to the above-mentioned means, the detergent is directly supplied into the washing tub and the droplets of water flowing on the water supply channel reach the outlet by making the discharge port face the inside of the washing tub when the detergent is supplied. Will disappear. In addition, the detergent is prevented from spilling due to operational vibration by setting the discharge port upward while the detergent supply is on standby.

However, the discharge port should be held in the upward state for most of the time except when the detergent is supplied.
Power consumption can be reduced by using a spring force instead of an electric drive source such as a motor.

The detergent delivery member is a coil-shaped first member.
Of the second delivery member and the second delivery member in the form of a solid screw, and the second delivery member is located in the outlet portion, the second delivery member has a solid configuration.
It is possible to more reliably prevent water from entering the outlet.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 shows an outer box 1 of a washing machine, in which a water tank 2 is arranged, and in the water tank 2, a washing tank 3 which also serves as a dehydrating tank is arranged.

On the other hand, on the outer box 1 (above the washing tub 3),
An upper cover 5 having a laundry entrance / exit 4 is attached, a lid 6 for opening / closing the laundry entrance / exit 4 is provided on the upper cover 5, and a detergent supply device 7 is provided behind the lid 6.

The detergent supply device 7 has a hopper 8 as a storage portion, and the powdery detergent is stored in the hopper 8. A detergent delivery member 9 is disposed on the inner bottom portion of the hopper 8 shown in FIG. 2, and the detergent delivery member 9 includes a coil-shaped first delivery member 9a and a solid screw connected to the first delivery member 9a. The second delivery member 9b is shaped like a second delivery member 9b, and the second delivery member 9b is located in an outlet portion 10 formed on one side of the bottom of the hopper 8 (right side in the figure).

On the other hand, the first motor 11 is arranged outside the bottom side of the hopper 8 (on the left side in the figure).
This driving force is transmitted to the detergent delivery member 9 through the gear transmission mechanism 12, and the detergent delivery member 9 is rotationally driven.

On the other hand, a discharge port body 13 is provided in communication with the outlet portion 10 of the hopper 8. The discharge port body 13 has a discharge port 15 extending in a different direction at a right angle with respect to the connection port 14, and the connection port 14 is fitted into the outlet portion 10 of the hopper 8 and then from above. By fitting the stop ring 16 and fixing the stop ring 16 to the hopper 8 with the screw 17, the discharge port body 13 is rotatably attached in a direction in which the direction of the discharge port 15 changes up and down.

A drive unit 18 is provided outside the discharge port body 13. In this drive unit 18,
As shown in FIG. 3, the second motor 19 and the motor 1
A gear transmission mechanism 28 including first to seventh gears 21 to 27 for transmitting the power of 9 to the output shaft 20 is provided.

In the gear transmission mechanism 28, the third gear 23 is located on the second gear 22, and the convex portion 29 and the hole 30 are provided.
It is engaged with the second gear 22 so as to rotate integrally with the second gear 22, and is normally separated from the second gear 22 by a spring 31 so that the convex portion 29 is formed from the hole 30. It is disengaged and is kept in a state unrelated to the second gear 22. A solenoid 32 is arranged further above the third gear 23,
When the solenoid 32 is energized, the movable iron core 3
3 is moved so that the third gear 23 rotates integrally with the second gear 22. Although not shown in detail, a one-way clutch surface is formed on the lower surface of the second gear 22, and the clutch lever 34 is made to correspond to this to prevent the reverse rotation of the second gear 22.

In the drive unit 18, however, the tip end of the output shaft 20 projects outside the unit,
As shown in FIG. 2, a central portion of the output shaft 20, which is concentric with the connection port 14 of the discharge port body 13, is attached to the tip end portion thereof. Further, as shown in FIG. 1, a spring 35 is stretched between the tip of the discharge port body 13 and the hopper 8, so that the discharge port body 13 is always shown by a solid line in the figure. I try to keep it up.

Next, the operation of the above structure will be described. When the operation of the washing machine is started, the motor 19 and the solenoid 32 of the drive unit 18 are energized. Then, the power of the motor 19 is transmitted from the first gear 21 of the gear transmission mechanism 28 to the second gear 22, and at this time, the movable iron core 33 of the energized solenoid 32 causes the third gear 23 to move.
Is made to rotate integrally with the second gear 22,
The power of the motor 19 transmitted to the second gear 22 is
It is transmitted to the third gear 23, further sequentially transmitted to the fourth to seventh gears 24 to 27, and then transmitted from the output shaft 20 to the discharge port body 13. Therefore, the discharge port body 13, which has been held in the upward state by the force of the spring 35 until now, is rotated against the force of the spring 35 and enters the washing tub 3 as shown by the chain double-dashed line in FIG. It will be in a state to face.

In this case, the motor 19 of the drive unit 18 is cut off at that time, and the discharge port body 13 is stopped from rotating any further. or,
When the motor 19 of the drive unit 18 is disconnected in this way, the discharge port body 13 is driven by the force of the spring 35 and the gear transmission mechanism 2
At this time, the solenoid 32 remains energized and the third gear 2 is rotated.
3 is integrated with the second gear 22, and the second gear 22
Since the reverse rotation is blocked by the clutch lever 34 via the one-way clutch surface, the third gear 23 does not reverse, and all the other gears do not reverse, and the discharge port body 13 is washed as described above. It is held in a state of facing the tank 3.

In this state, the first motor 11 is energized, and its power is transmitted to the detergent delivery member 9 via the gear transmission mechanism 12, and the detergent delivery member 9 rotates, particularly the coil,
It is driven to rotate in the screw advancing direction. Therefore, based on this, the detergent in the hopper 8 is advanced toward the outlet portion 10, is delivered from the outlet portion 10 and is supplied into the washing tub 3 through the discharge outlet body 13.

After supplying a predetermined amount of detergent, the first motor 11 is energized in the reverse direction for a certain period of time. Therefore, the detergent delivery member 9 is also reversed for a certain period of time to return the detergent in the outlet portion 10. At this time, the solenoid 32 of the drive unit 18 is cut off, which causes the gear transmission mechanism 28 to move.
The third gear 23 is released from the constraint of the movable iron core 33 of the solenoid 32, separated from the second gear 22 by the force of the spring 31, and returns to a state irrelevant to the second gear 22, Starting with the third gear 23, the fourth through seventh gears
The reverse rotation of the gears 24 to 27 of the
Is returned to the original state while reversing all the gears of the gear transmission mechanism 28 by the force of the spring 35, that is, returned to and held in the upward state shown by the solid line in FIG.

Therefore, in the case of the present construction, the drive unit 18 and the spring 35 function as a drive device for making the discharge port body 13 face the inside of the washing tub 3 at the time of supplying the detergent and to make it in the upward state at the time of waiting for the supply of the detergent. .

As described above, in the case of the present configuration, when the detergent is supplied, the discharge port body 13 is made to face the inside of the washing tub 3 by the drive unit 18, so that the detergent is discharged.
3 which can be directly supplied into the washing tub 3 through 3 and is different from the conventional one which is dropped onto a water supply channel and is supplied by water flowing on the water supply channel, splashes of water flowing on the water supply channel reach the outlet section 10. Therefore, the detergent in the outlet portion 10 can be smoothly delivered and supplied without solidifying with water.

Further, the discharge port body 13 is held in an upward state when the detergent supply is on standby, whereby it is possible to prevent the detergent from spilling due to operational vibrations during rinsing and dehydration, which impairs the finish of the laundry. You can do things like that.

In this case, the discharge port body 13 is held in the upward state for most of the time except when the detergent is supplied, and it is formed by the force of the spring 35, not by the electric drive source such as the motor 19 or the solenoid 32. By doing so,
Power consumption can be reduced.

In addition, the detergent delivery member 9 comprises a coil-shaped first delivery member 9a and a solid screw-shaped second delivery member 9b, and the second delivery member 9b is connected to the outlet portion 10. Since the second delivery member 9b has a solid structure, the second delivery member 9b can more reliably prevent the infiltration of water droplets from the washing tub 3 into the outlet portion 10 by simultaneously supplying water during the detergent supply. It is possible to prevent the solidification of the detergent and further contribute to prevention of solidification of the detergent. In this case, the coil-shaped first
Depending on the delivery member 9a, the detergent can be delivered little by little, and the effect of accelerating the dissolution thereof can be obtained.

The present invention is not limited to the embodiment described above and shown in the drawings.
The specific configuration and other points of the drive device for driving the drive device can be appropriately changed and implemented without departing from the gist.

[0031]

The detergent supply device for the washing machine of the present invention is as described above, and has the following effects. First,
A washing machine is provided with a storage portion above the washing tub, and the powdery detergent stored in the storage portion is delivered from the outlet portion by the operation of the detergent delivery member and supplied, and is provided in communication with the outlet portion. The discharge port body and the drive device for driving the discharge port body so as to be in the upward state during the detergent supply standby state and face the inside of the washing tub when the detergent is supplied. The detergent can be smoothly delivered without being solidified, and the detergent can be prevented from spilling due to operational vibration during rinsing or dehydration, and the finish of the laundry can be prevented from being damaged by the detergent.

Secondly, since the driving device has a structure in which the ejection port body is held in the upward state by the force of the spring, the power consumption can be suppressed to a small level.

Thirdly, the detergent delivery member is composed of a coil-shaped first delivery member and a solid screw-shaped second delivery member, and the second delivery member is located in the outlet portion. As a result, it is possible to more reliably prevent solidification due to water droplets in the detergent outlet.

[Brief description of drawings]

FIG. 1 is a cutaway side view of a main part showing an embodiment of the present invention.

FIG. 2 is a vertical sectional front view of the same portion.

FIG. 3 is a partial vertical sectional view of a drive unit.

[Explanation of symbols]

3 is a washing tub, 7 is a detergent supply device, 8 is a hopper (reservoir), 9 is a detergent delivery member, 9a is a first delivery member, 9b
Is a second delivery member, 10 is an outlet portion, 11 is a first motor, 13 is a discharge port body, 18 is a drive unit (drive device), and 35 is a spring (drive device).

Claims (3)

[Claims] 1. A washing machine comprising a storage section above a washing tub, wherein the powdery detergent stored in the storage section is delivered from an outlet section by the operation of a detergent delivery member and supplied.
A discharge device provided so as to communicate with the outlet portion, and a drive device for driving the discharge device so that the discharge device faces upward during a detergent supply standby state and faces the inside of the washing tub during detergent supply. A detergent supply device for a washing machine. 2. The detergent supply device for a washing machine according to claim 1, wherein the drive device is configured to hold the discharge port body in an upward state by the force of the spring. 3. The detergent delivery member comprises a coil-shaped first delivery member and a solid screw-shaped second delivery member, and the second delivery member is located in the outlet portion. The detergent supply device for the washing machine according to claim 1.