JPH11300087A - Fully automatic washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fully automatic washing machine which keeps a dehydrating drum stopped when a main power source is turned on. SOLUTION: When the main power source is turned on, a clutch is operated to be switched to the washing position and a dehydrating drum is fixed. In addition, a means is arranged to detect that the dehydrating drum is not rotated and the clutch is switched to the washing position after waiting for the dehydrating drum to stop its rotation. A timer is provided to stop the inertial rotation of the hydrating drum with a time allowance and thereafter, the clutch is switched to the washing position. The braking of the dehydrating drum is actuated immediately. Another timer is arranged to stop the rotation of the dehydrating drum with a time allowance and thereafter, the clutch is switched to the washing position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fully automatic washing machine in which washing and rinsing of clothes used in ordinary households are performed by a pulsator rotating at a low speed, and dehydration is performed by rotating a dehydrating tub at a high speed.

[0002]

2. Description of the Related Art A conventional fully automatic washing machine is shown in FIG.
The configuration is as shown in FIG. That is, the receiving cylinder 3 supported by the suspension 2 is provided in the main body 1,
The receiving cylinder 3 is provided with a dehydration tub 5 (hereinafter, simply referred to as a dehydration tub 5) also serving as a washing tub. The dewatering tub 5 has an open top so that laundry can be put in from the top.
In addition, the bottom has a pulsator 9 and the side has many holes. The dewatering tank 5 is fixed to a dewatering shaft 4 supported by a bearing 6 provided on the bottom surface of the receiving cylinder 3. The pulsator 9 is fixed to a washing shaft 8 supported by a bearing 7 inside the dehydrating shaft 4. The washing shaft 8 is linked with a drive motor 10.

The washing shaft 8 is connected to clutch means for transmitting the rotation of the drive motor 10 to the washing shaft 8 or the spinning shaft 4. That is, the clutch means is the washing shaft 8
A movable clutch plate having a cam shape for converting the movement of the plunger 13 of the solenoid 12 in the vertical direction, and engaging with the fixed clutch plate 11 when the washing shaft 8 is moved downward. 14.

With the above construction, during the washing and rinsing steps, the solenoid 12 is energized, the plunger 13 is attracted by the generated magnetic force, and the movable clutch plate 14 is moved in the thrust direction of the washing shaft 8, that is, upward. The engagement with the fixed clutch plate 11 is released. Therefore, the driving motor 1
The power of 0 is transmitted only to the pulsator 9 via the washing shaft 8 and gives mechanical power to the laundry. Thus, the washing and rinsing of the laundry stored in the dewatering tub 5 proceeds.

In the dehydrating process, the power supply to the solenoid 12 is stopped, and the movable clutch plate 14 lowers the washing shaft 8 in the thrust direction by its own weight, and the fixed clutch plate 11
Engage with. Therefore, the washing shaft 8 and the dewatering tub 4 are connected, and the entire dewatering tub 5 rotates. The water content of the laundry that has been washed and rinsed by the rotation of the spin tub 5 is squeezed into the receiving cylinder 3 from a large number of holes provided on the side surface of the spin tub 5 by centrifugal force. Thus, the laundry is automatically dehydrated.

[0006]

The fully automatic washing machine having the above-mentioned conventional construction is provided with a clutch means for switching the power transmission of the drive motor to a washing shaft or a dehydrating shaft. Is designed to be dehydrated. When the main power is turned on, the clutch is not operated, so that the dehydration tub can be freely rotated. If the laundry is put in a state where the spin-drying tub rotates freely, the spin-drying tub rotates and it is difficult to put the laundry in, and there is a problem that the laundry is tangled with the finger and is dangerous.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the conventional construction, and provides a fully automatic washing machine having a simple control and a sense of security.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention described in claim 1 is a fully automatic washing machine characterized in that it has a control to immediately set a washing state when a main power is turned on.

The invention described in claim 2 has a means for detecting that the spin-drying tub is not rotating when the main power supply is turned on, switching the clutch after the spin-drying tub stops rotating, and changing the clutch. This is a fully automatic washing machine characterized by having a control for

The invention described in claim 3 is characterized in that when the main power is turned on, a timer is provided to allow time for the inertial rotation of the dehydration tub to stop, and then control is performed to switch the clutch to a washing state. And a fully automatic washing machine.

According to a fourth aspect of the present invention, there is provided a fully automatic washing machine having a control for immediately applying a brake of a dewatering tub when a main power is turned on.

According to a fifth aspect of the present invention, when the main power supply is turned on, the brake of the spin-drying tub is activated, and a timer is provided to allow time for stopping the rotation of the spin-drying tub. This is a fully automatic washing machine characterized by having a control for

[0013]

(Embodiment 1) A first embodiment of the present invention will be described below. The configuration is the same as that of the conventional example, and will be described with reference to FIG. A receiving cylinder 3 supported by a suspension 2 is provided in the main body 1, and a dehydration tank 5 is provided in the receiving cylinder 3.
A pulsator 9 is provided at the bottom, and the dewatering tub 5 is fixed to a dewatering tub 4 supported by a bearing 6 provided on the bottom surface of the receiving cylinder 3, and the pulsator 9 is supported by a bearing 7 inside the dewatering shaft 4. It is fixed to the washing shaft 8 and is interlocked with the drive motor 10. The washing shaft 8 is connected to clutch means for transmitting the rotation of the drive motor 10 to the washing shaft 8 or the dehydrating shaft 4. That is, the clutch means is the washing shaft 8
When the washing shaft 8 is moved downward by the solenoid 12 and the fixed clutch plate 1
1 and the movable clutch plate 14 that engages
And a mechanism 15 for converting the movement of the solenoid 12 in the vertical direction.

The operation of this embodiment will be described below. It is an object of the present invention to provide a fully automatic washing machine having a control for immediately setting a washing state when a main power is turned on.

(Embodiment 2) Hereinafter, a second embodiment of the present invention will be described with reference to the flowchart of FIG. In this embodiment, the dehydration tub is provided with means for detecting rotation, and when the main power is turned on, after detecting that the dehydration tub is not rotating,
It is an object of the present invention to provide a fully automatic washing machine having a control for switching a clutch.

(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to the flowchart of FIG. In the present embodiment, when the main power is turned on, a fully automatic washing machine having a control for switching the clutch is provided with sufficient time until the rotation stops in a state where the laundry with the maximum capacity is in the spin-drying tub. To provide.

(Embodiment 4) A fourth embodiment of the present invention will be described below with reference to FIG. The present embodiment provides a fully automatic washing machine in which, when the main power is turned on, the brake is operated immediately to stop the dewatering tub.

(Embodiment 5) Next, a fifth embodiment of the present invention will be described with reference to the flowchart of FIG. The present embodiment provides a fully automatic washing machine in which the brakes are operated immediately when the main power is turned on, and the clutch is switched to the washing state with enough time to stop the rotation of the spin tub.

[0019]

According to the first aspect of the invention, when the main power is turned on, the laundry is immediately put into a washing state, and when the laundry is put into the dehydration tub, the dehydration tub does not rotate and is easily inserted. Further, the present invention realizes a fully automatic washing machine that prevents laundry from tangling with a finger due to rotation of a dehydration tub.

According to a second aspect of the present invention, when the main power is turned on by the means for detecting rotation of the dewatering tub, it is detected that the dehydration tub is not rotating, and then the clutch is switched to thereby switch the clutch. It is an object of the present invention to realize a fully automatic washing machine having a control that does not cause breakage and abnormal noise at the time of meshing.

According to the third aspect of the present invention, when the main power is turned on, the clutch is switched with sufficient time to stop the rotation of the dewatering tub, so that the clutch may be damaged or abnormal noise may occur at the time of meshing. It realizes a fully automatic washing machine with no control.

According to the invention described in claim 4, in this embodiment, when the main power is turned on, the brake is actuated immediately, and when the laundry is put into the dehydration tub, the dehydration tub is difficult to rotate and put. Further, the present invention realizes a fully automatic washing machine that prevents laundry from tangling with a finger due to rotation of a dehydration tub.

According to a fifth aspect of the present invention, when the main power is turned on, the brake rotation of the dewatering tub is operated immediately, and the clutch is switched with sufficient time to stop the rotation of the dewatering tub. It is intended to realize a fully automatic washing machine having a control that does not cause breakage of the machine and no abnormal noise at the time of meshing.

[Brief description of the drawings]

FIG. 1 is a flowchart showing control of a fully automatic washing machine according to a second embodiment of the present invention.

FIG. 2 is a flowchart showing control of a fully automatic washing machine according to a third embodiment of the present invention.

FIG. 3 is a configuration diagram illustrating an overall configuration of a fully automatic washing machine according to a fourth embodiment of the present invention.

FIG. 4 is a flowchart showing control of a fully automatic washing machine according to a fifth embodiment of the present invention.

FIG. 5 is a configuration diagram illustrating a configuration of a conventional fully automatic washing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Suspension 3 Receiving cylinder 4 Dehydration tank 5 Dehydration tank 6 Bearing 7 Bearing 8 Washing shaft 9 Pulsator 10 Drive motor 11 Fixed clutch plate 12 Solenoid 13 Plunger 14 Movable clutch plate 15 Brake

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinichi Matsuda 1006 Kazuma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd.

Claims (5)

[Claims] 1. A hollow dehydrating shaft that rotates freely while fixing a dehydrating tub, a washing tub disposed in the dehydrating shaft that fixes a pulsator disposed in the dehydrating tub, and a drive motor that drives the washing shaft. A fixed clutch plate fixed to the washing shaft, means for driving the clutch, and a movable clutch plate which moves up and down by the driving means to engage with the fixed clutch plate. By moving the washing shaft in the thrust direction, that is, upward, to disengage with the fixed clutch plate, during the dehydration process, the movable clutch plate descends the washing shaft in the thrust direction by its own weight to engage with the fixed clutch plate. A fully automatic washing machine having means for connecting a washing shaft and a dewatering tub and rotating the entire dewatering tub, and having a control to immediately switch a clutch to a washing state when a main power is turned on. 2. A fully automatic washing machine according to claim 1, further comprising means for detecting rotation of the dehydrating shaft, wherein when the main power is turned on, the clutch is switched after detecting that the dehydrating shaft is not rotating. . 3. The fully automatic washing machine according to claim 1, wherein the clutch is switched after a predetermined time has elapsed since the main power was turned on. 4. The fully automatic washing machine according to claim 1, wherein when the main power is turned on, the brake of the spin tub is immediately activated to stop the spin tub. 5. The fully automatic washing machine according to claim 4, wherein when the main power is turned on, the brake of the dewatering tub is actuated immediately, and the clutch is switched after a predetermined time has elapsed since the brake was driven.