JPH0866581A - Fully automatic washer - Google Patents

Abstract

PURPOSE: To provide a clutch mechanism with simple mechanism and high reliability by providing the clutch mechanism in which a washing shaft is connected to a hydra tion shaft when a nut screw-engaged with the washing shaft is displaced in a sliding direction by the rotation of the washing shaft and it is moved at a terminal part by a prescribed stroke. CONSTITUTION: When washing and rinsing are performed, the nut 30 is displaced by the prescribed stroke vertically in a thrust direction by rotating the washing shaft 23 in forward and backward directions, and the torque of a driving motor 27 is transmitted only to the washing shaft 23, and a pulsator is rotated, and a mechanical force is applied to a material to be washed. Moreover, when the rinsing is completed, the washing shaft 23 is rotated in a hydrating and rotational direction after drainage, however, at this time, a movable gear 31 is engaged with a fixed gear 32 after the nut 30 is moved by the prescribed stroke. At this time, the engagement of those gears is not always performed, however, they can be automatically engaged with each other at an appropriate position by rotating the washing shaft 23 appropriately. In this way, a dehydration vessel is connected to the washing shaft 23, and the material to be washed can be dehydrated by rotating the dehydration vessel at high speed by the driving motor 27.

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 which is used in general households, in which washing and rinsing of clothes are performed by a pulsator rotating at a low speed and dehydration is performed by rotating a dehydrating tank at a high speed.

[0002]

2. Description of the Related Art A conventional fully automatic washing machine has a structure as shown in FIG. That is, the main body 1, a receiving cylinder 3 supported by the suspension 2 in the main body 1, a dehydrating tank 5 having a hollow dehydrating shaft 4 opened on the top surface and a bottom surface, and the dehydrating shaft 4 are provided on the receiving cylinder 3. It is supported by a bearing 6 provided on the bottom surface. Denoted at 8 is a washing shaft which is supported by a bearing 7 inside the dehydration shaft 4, and has a pulsator 9 inside the dehydration tub 5.
It has. Further, the washing shaft 8 is linked with the drive motor 10. Reference numeral 11 denotes a friction plate attached to the dehydration shaft 4 via a leaf spring 12, and the rotor 1 fixed to the washing shaft 8
The magnetic flux generated by the magnet 3 and the yoke 14 makes suction contact. Reference numeral 15 is a drain cock.

[0003]

In such a structure, the power of the drive motor 10 is transmitted to the pulsator 9 through the washing shaft 8 in the washing and rinsing steps, and the mechanical force is applied to the article to be washed. In the dehydration process, the yoke 14 is energized and the generated magnetic force attracts the friction plate 11 to press it against the rotor 13. At this time, the torque of the drive motor 10 is transmitted to the spin-drying shaft 4 by the frictional force generated on the pressure contact surface. However, if an excessive load is applied by the object to be washed or the friction surface is dirty, the friction plate 11 slips. It causes problems such as noise and lack of required dewatering speed. Further, in order to increase the initial suction force, the friction plate 11 and the rotor 13
The gap between the two was extremely small and required high-precision assembly. Further, this type of electromagnetic clutch is very expensive, and there is a problem in terms of cost.

The present invention is intended to solve the above problems,
A first object is to provide a fully automatic washing machine having a simple structure and a highly reliable clutch mechanism.

A second object of the present invention is to provide a fully automatic washing machine equipped with a highly reliable clutch mechanism having a simple structure using a solenoid in order to solve the above problems.

In order to solve the above problems, the present invention provides a fully automatic washing machine having a simple and highly reliable clutch mechanism in which a clutch mechanism consisting of a solenoid and a meshing portion is formed inside a bearing. Is the third purpose.

In order to solve the above problems, the present invention provides a fully automatic washing machine having a clutch mechanism consisting of a sphere and a male screw inside during dehydration, and having a very simple and highly reliable clutch mechanism. The fourth purpose is to do.

A fifth object of the present invention is to provide a simple and highly reliable fully automatic washing machine having a dedicated rotor for washing and spinning and having no clutch mechanism in order to solve the above problems. To do.

Further, in order to solve the above-mentioned problems, the present invention provides a fully automatic washing machine having a low-cost and highly reliable clutch mechanism in which a rotor provided with an engaging portion is movable in the thrust direction. There are six purposes.

Further, in order to solve the above-mentioned problems, the present invention is a fully automatic system provided with a simple and low-cost clutch mechanism comprising a meshing portion provided on a pulsator movable in the thrust direction and a meshing portion of a dehydration tank. The seventh purpose is to provide a washing machine.

[0011]

The first means for achieving the above first object is a main body, a receiving cylinder supported by a suspension in the main body, and a bearing supported on the bottom surface of the receiving cylinder. A hollow dewatering shaft, a dewatering tub fixed to the dewatering shaft, a washing shaft supported by a bearing in the dewatering shaft, and having a pulsator attached in the dewatering tub;
A drive motor interlocking with the washing shaft, a male screw portion provided on the outer periphery of the washing shaft, an inner periphery of which meshes with the male screw, and an outer periphery of which is slid on a groove portion provided on the inner surface of the dehydration shaft in the longitudinal direction. A nut that fits as much as possible is provided, and the nut is displaced in the thrust direction by the rotation of the washing shaft, and a clutch mechanism is provided in which the washing shaft and the spin-drying shaft are connected when a predetermined stroke of the end portion is moved.

A second means for achieving the above second object is a main body, a receiving cylinder supported by a suspension in the main body, a bearing attached to the bottom surface of the receiving cylinder, and a thrust direction at the end. A hollow dewatering shaft having a movable meshing part that slides on the dewatering shaft, a dewatering tub fixed to the dewatering shaft, a washing shaft supported by a bearing in the dewatering shaft, and having a pulsator attached in the dewatering tub; A drive motor provided with a meshing portion on the rotor portion in conjunction with the washing shaft, and a solenoid including an iron core and a coil for moving the movable meshing portion are provided, and the movable meshing portion is moved by the movement of the iron core of the solenoid. A structure is provided in which a clutch mechanism is provided which is capable of releasing the connection with the meshing portion of the rotor portion, thereby arbitrarily releasing the connection between the dehydration shaft and the washing shaft.

Still further, a third means for achieving the above third object is a main body, a receiving cylinder supported by a suspension in the main body, and bearings mounted on the bottom surface of the receiving cylinder at a predetermined interval. A hollow dewatering shaft attached by a bearing case, a dewatering tank fixed to the dewatering shaft and a meshing portion provided inside the dewatering shaft, and a pulsator supported in the dewatering shaft by a bearing. A washing shaft attached with, and a movable meshing part that fits on the washing shaft with a spline or the like and slides in the thrust direction inside the dehydration shaft,
A spring for returning the movable meshing portion, a solenoid formed between the bearings, and a drive motor interlocking with the washing shaft are provided, and the movable meshing portion is displaced in the thrust direction by the electromagnetic force of the solenoid, and the dehydration shaft is provided. It is connected to the meshing part of the shaft and is released by the spring. Thus, a clutch mechanism for arbitrarily disconnecting the dehydration shaft and the washing shaft is provided.

A fourth aspect for achieving the above fourth object
The means is a main body, a receiving cylinder supported by a suspension in the main body, a hollow dehydrating shaft mounted by a bearing case having bearings mounted on the bottom surface of the receiving cylinder at a predetermined interval, and this dehydrating shaft. To the washing shaft, a washing shaft supported by bearings in the spinning shaft and having a pulsator attached to the end, a male screw part of a predetermined number of turns provided on the washing shaft, and a male screw part of the washing shaft. And a spin motor inserted between the inner surfaces of the spin-drying shaft and a drive motor that works in conjunction with the washing shaft. so,
The sphere is wedge-bonded to the dehydration shaft at the end of the external thread. Thus, the washing shaft and the dehydration shaft are connected to each other, and a clutch mechanism for releasing the connection by reversing the shaft is provided.

Further, a fifth aspect for achieving the above fifth objective
The means is a hollow body having a main body, a receiving cylinder supported by a suspension in the main body, a bearing mounted on the bottom surface of the receiving cylinder, and a dehydrating rotor having an end portion constituted by a permanent magnet or the like. A dehydration shaft, a dehydration tub fixed to the dehydration shaft in the water tub, a washing shaft supported by a bearing in the dehydration shaft, and a washing rotor connected to the washing shaft and configured by a permanent magnet or the like, The washing rotor is provided with a stator including an iron core and a winding fixed between the dehydration rotor and the washing rotor, and a motor control unit for controlling the drive of the dehydration rotor and the washing rotor. It is configured to be driven to drive the dehydration rotor during dehydration.

A sixth aspect for achieving the sixth objective
The means is a main body, a receiving cylinder supported by a suspension in the main body, a hollow dewatering shaft supported by a bearing attached to the bottom of the receiving cylinder, and a hollow dewatering shaft provided with an engaging portion at the end, and in the water tank. A dehydration tub fixed to the dehydration shaft, a washing shaft supported by bearings in the dehydration shaft, a rotor connected to the washing shaft by a spline or the like so as to be movable in the thrust direction, and composed of a permanent magnet or the like. A movable meshing portion provided on the rotor at a position facing the meshing portion, a stator composed of a plurality of teeth and a core fixed and fixed with a predetermined gap from the rotor magnet surface; And a motor control unit for controlling the drive of the rotor, wherein a part of the teeth of the iron core is located at a constant distance in the thrust direction from the center of the magnetic field of the permanent magnet of the rotor. A configuration that is energized only at the time of shifting the washing or during dehydration.

Still further, a seventh means for achieving the seventh object is a main body, a receiving cylinder supported by a suspension in the main body, and a hollow dehydrating shaft mounted on the bottom surface of the receiving cylinder by a bearing. A dehydration tub fixed to this dehydration shaft and provided with a lower engaging portion, a washing shaft supported by bearings in the dehydration shaft, and a washing shaft mounted so as to be movable in the thrust direction, and several airtight seals. A pulsator provided with a hollow stirring blade, a movable meshing part provided on the pulsator at a position facing the meshing part, and a drive motor linked with the washing shaft, the movable meshing part being used for washing. A clutch mechanism is provided that floats in the thrust direction by pouring water and releases the connection with the dewatering tank meshing part.

[0018]

According to the first means, the power of the drive motor is transmitted to the pulsator through the washing shaft in the washing and rinsing strokes, and mechanical power is applied to the article to be washed. At this time, the washing shaft rotates to the left and right at the same number of rotations, whereby the nut fitted into the washing shaft moves up and down by a constant stroke. Further entering the dehydration process,
The washing shaft continues to rotate in one direction, and the nut is fitted with the dewatering shaft at the place where the nut has moved by a predetermined stroke. As a result, the dehydration shaft and the washing shaft are connected, the torque of the drive motor is transmitted to the dehydration shaft, and the dehydration tub rotates.

In the second means, the power of the drive motor is transmitted to the pulsator through the washing shaft in the washing and rinsing steps, and the mechanical force is applied to the article to be washed. When the dehydration process is further started, the solenoid is energized and the iron core pushes down the movable meshing portion, and meshes with the meshing portion provided on the rotor portion. As a result, the torque of the drive motor is transmitted to the dehydration shaft, and the dehydration tank rotates.

Furthermore, in the third means, the power of the drive motor is transmitted to the pulsator via the washing shaft in the washing and rinsing steps, and mechanical power is applied to the article to be washed. In the dehydration process, the movable meshing portion overcomes the spring force and is attracted in the thrust direction by the magnetic force generated by energizing the solenoid, and meshes with the meshing portion of the dehydrating shaft. As a result, the dehydration shaft and the washing shaft are connected, the torque of the drive motor is transmitted to the dehydration shaft, and the dehydration tub rotates.

In the fourth means, the power of the drive motor is transmitted to the pulsator via the washing shaft in the washing and rinsing strokes, and mechanical power is applied to the article to be washed. At this time, the spherical body between the trough of the male screw portion provided on the washing shaft and the inner surface of the spin-drying shaft moves up and down by a certain stroke in the lead direction of the screw by the forward and reverse rotation of the washing shaft. Further, when entering the dehydration process, the washing shaft rotates only in a certain direction, whereby the sphere moves only in one direction and the torque of the washing shaft is transmitted to the dehydration shaft when the dehydration shaft is wedge-coupled with each other. Rotates.

In the fifth means, the washing rotor is driven by the motor control unit in the washing and rinsing steps, and the power of the rotor is transmitted to the pulsator via the washing shaft to give a mechanical force to the article to be washed. In the dehydration process, the motor control unit drives the dehydration rotor, and the power of the rotor causes the dehydration tank to rotate via the dehydration shaft.

In a sixth means, in the washing and rinsing process, the motor control section controls the energization of only the tooth center of the rotor coinciding with the center of the permanent magnet of the rotor to drive the rotor so that the power of the rotor is washed. It is transmitted to the pulsator via the shaft and gives mechanical force to the laundry. Further, when the dehydration process is started, the motor control unit energizes the center of the tooth deviated from the center of the permanent magnet of the rotor by a predetermined stroke. At this time, the permanent magnet of the rotor receives a force that is about to be attracted to a balanced position where the centers of the magnets are attracted by the magnetic flux of the electromagnet composed of the teeth and the winding. As a result, the rotor mounted on the washing shaft so as to be slidable by a predetermined stroke in the thrust direction moves a predetermined distance, and the movable meshing portion provided on the rotor is meshed with the meshing portion of the spin-drying shaft to drive the rotor. Is transmitted to the dehydration shaft to rotate the dehydration tank.

Further, the seventh means is that the pulsator in the washing water in the washing and rinsing steps is lifted up by a predetermined stroke due to the buoyancy of the airtight stirring blade, and the movable part provided in the pulsator from the meshing part provided in the dehydration tank. The meshing parts are separated, and the drive motor rotates only the pulsator. Furthermore, during dehydration, washing water is drained and the pulsator falls downward due to its own weight. As a result, the movable meshing portion of the pulsator and the meshing portion of the dehydration tank are meshed and connected, and the torque of the drive motor is transmitted to the dehydration tank to rotate the dehydration tank.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 15 denotes a receiving cylinder that is suspended in a main body 16 by a plurality of suspensions 17 in a semi-constrained manner. The receiving cylinder is rotatably supported by a dehydration shaft 18, and a water passage hole 19 and a fluid balancer 20 are appropriately provided. It has a dehydration tank 21 provided with. Reference numeral 22 is a bearing that supports the dehydration shaft 18. Further, 23 is a washing shaft supported by metal bearings 24, 25 inside the dehydration shaft 18. The washing shaft 23 has a pulsator 26 attached inside the dehydration tub 21, and a drive motor 27 is connected to the other end. Further, a male screw portion 28 is provided on the outer periphery of the washing shaft 23, the inner periphery of which is engaged with the male screw portion 28, and the outer periphery of which is the dehydration shaft 2.
1 has a nut 30 slidably fitted in a groove 29 provided in the longitudinal direction. Further, 31 is a movable meshing tooth provided on the nut 30, which is the dehydrating shaft 21.
It is adapted to mesh with a fixed meshing tooth 32 provided on the.

The operation of the above configuration will be described. During washing and rinsing, the nut 30 is displaced by a predetermined stroke Sw up and down in the thrust direction by the forward and reverse rotation of the washing shaft 23,
The torque of the drive motor 27 is transmitted only to the washing shaft 23, the pulsator 26 rotates, and mechanical force is applied to the laundry.
After further rinsing, the drainage washing shaft 23 rotates in the dehydration rotation direction. At this time, when the nut 30 moves by a predetermined stroke Sd, the movable meshing teeth 31 mesh with the fixed meshing teeth 32. At this time, the meshing teeth may be displaced and may not mesh, but by appropriately rotating the washing shaft 23, the meshing teeth can be automatically fitted at a suitable position. As a result, the dehydration shaft 21 and the washing shaft 23 are connected, and the drive motor 27 rotates the dehydration tub 21 at high speed to dehydrate the laundry.

As described above, the present invention provides a clutch mechanism which can switch between the dehydration shaft 21 and the washing shaft 23 with a simple structure and which is low in cost and high in reliability.

Next, a second embodiment will be described with reference to FIG. In this embodiment, the whole structure of the fully automatic washing machine is shown in FIG.
Since it is the same as the above, the description will be omitted, and the difference will be mainly described below.

At the end of the dewatering shaft 33, there is attached a flange-shaped movable meshing tooth 36, which is displaced in the thrust direction, is fixed in the radial direction by serrations 34, and has a taper 35 on the entire circumference, and a washing shaft 37. A fixed meshing tooth 39 is provided at a position opposed to the movable meshing tooth 36 on the rotor 38 interlocked with. Reference numeral 40 is a drive motor including the rotor 38 and the stator 41.
Reference numeral 42 is a solenoid having a taper 44 at the end of the plunger 43.

The operation of the above configuration will be described. During washing and rinsing, the plunger 43 is pushed out by energizing the solenoid, and the taper 44 provided at the end pushes up the movable meshing tooth 36 along the taper 35 of the movable meshing tooth 36. As a result, the movable meshing teeth 36 and the fixed meshing teeth 39 are released from each other, the torque of the drive motor 40 is transmitted only to the washing shaft 37, and the pulsator 26 rotates, so that a mechanical force is applied to the laundry. Further, when the dehydration process is started, the solenoid 42 is turned off, whereby the movable meshing tooth 36 pushes back the plunger 43 by its own weight and meshes with the fixed meshing tooth 39 facing each other. At this time, the washing shaft 37 and the dewatering shaft 33 are connected, and the dewatering tub 33 is rotated at a high speed by the drive motor 27 to dewater the laundry.

As described above, the present invention provides a clutch mechanism which can switch between the dehydration shaft 33 and the washing shaft 37 with a simple structure and which is low in cost and high in reliability.

Next, a third embodiment will be described with reference to FIG. In this embodiment, the whole structure of the fully automatic washing machine is shown in FIG.
Since it is the same as the above, the description will be omitted, and the difference will be mainly described below.

Reference numeral 45 is a fixed meshing tooth provided inside the dehydration shaft 46, and 47 is a washing shaft supported by a bearing 48 inside the dehydration shaft 46 and having a pulsator 50 mounted in a dehydration tub 49. Numeral 51 is a movable meshing tooth which is fitted to the washing shaft 47 by a spline 52 and slides in the thrust direction inside the spin-drying shaft 49, and 53 is this movable meshing tooth 51.
Is a bias spring for returning the reference numeral 54 to a solenoid 55 formed between bearings 55. Reference numeral 56 is a drive motor that works in conjunction with the washing shaft 47.

The operation of the above configuration will be described. In the washing and rinsing process, the power of the drive motor 56 is the washing shaft 47.
It is transmitted to the pulsator 50 via the and applies mechanical force to the laundry. At this time, the movable meshing teeth 51 made of magnetic material
The center a is supported by the bias spring 53 at a position separated by a predetermined stroke s from the position b where the magnetic force of the solenote 54 is balanced. Further, in the dehydration process, the center a of the movable meshing teeth 51, which is a magnetic body, is attracted to the balance position b of the solenoid 54 by the magnetic force generated by energizing the solenoid 54. By this action, the movable meshing teeth 51 move in the thrust direction, the fixed meshing teeth 45 of the dehydration shaft 49 and the washing shaft 47 are connected, and the torque of the drive motor 56 is transmitted to the dehydration shaft 49.

As described above, the present invention provides a clutch mechanism which can switch between the dehydration shaft and the washing shaft with a simple structure and which is low in cost and high in reliability.

Next, a fourth embodiment will be described with reference to FIG. In this embodiment, the whole structure of the fully automatic washing machine is shown in FIG.
Since it is the same as the above, the description will be omitted, and the difference will be mainly described below.

Reference numeral 57 is a hollow dehydrating shaft mounted by a bearing case 60 having bearings 59 mounted on the bottom surface of the receiving cylinder 58 at a predetermined interval, and 61 is a dehydrating tank 62 fixed to the dehydrating shaft 57. The washing shaft is supported by a bearing 63 in a dehydration shaft 57 and has a pulsator 64 attached to its end. Further, the washing shaft 61 has the male screw portion 6 with a predetermined number of turns.
5, the male screw portion 65 of the washing shaft 61 and the dehydration shaft 5
A sphere 66 is inserted between the inner surfaces of 7. 67 is a drive motor that is interlocked with the washing shaft 61.

The operation of the above configuration will be described. In the washing and rinsing process, the power of the drive motor 67 is the washing shaft 61.
Is transmitted to the pulsator 64 via the, and mechanical force is applied to the laundry. At this time, the sphere 66 is guided by the male screw portion 65 by the rotation of the drive motor 67, and the dehydration shaft 62 is
A predetermined stroke s is vertically moved inside. In the dehydration step, the washing shaft 61 rotates in a certain direction, and the spherical body 66 is moved by the male screw portion 65, and is wedge-coupled to the dehydration shaft 57 at the position c in contact with the dehydration shaft 57. As a result, the washing shaft 61 and the dehydration shaft 57 can be released by connecting them and reversing them.

As described above, the present invention provides a clutch mechanism which has a simple structure and which can disconnect the dehydration shaft and the washing shaft from each other and which is low in cost and high in reliability.

Next, a fifth embodiment will be described with reference to FIG. In this embodiment, the whole structure of the fully automatic washing machine is shown in FIG.
Since it is the same as the above, the description will be omitted, and the difference will be mainly described below.

Reference numeral 68 denotes a drive motor attached to the bottom of the receiving cylinder 69. The washing stator 70, the washing rotor 71, the dehydration stator 72, and the dehydration rotor 73 are formed in a Baumkuchen shape. 74 is the dewatering rotor 73
It is a dehydration shaft connected to the bearing case 76 and is supported by a bearing case 76 via a bearing 75. Reference numeral 77 is a washing shaft which is supported by a bearing 78 in the spin-drying shaft 74 and has a washing rotor 71 connected to the end thereof. Further, 79 is a motor control section for electrically controlling the drive motor 68.

The operation of the above configuration will be described. In the washing and rinsing process, the motor control unit 79 drives the washing rotor 71, and the washing rotor 71 is powered by the washing shaft 7.
4 is transmitted. In the dehydration process, the motor controller 79 drives the dehydration rotor 73, and the power of the dehydration rotor 73 causes the dehydration shaft 74 to rotate.

As described above, according to the present invention, the motor structure can be made thin and simple, and the height of the washing machine main body can be made by separating the drive sources for washing and dehydration and forming the stator and the rotor in a Baumkuchen shape. It can be lowered and the usability is improved. Further, since there is no special mechanism for disconnecting the dehydration shaft and the washing shaft, it is possible to provide a low-cost and highly reliable switching structure for washing and dehydration.

Next, a sixth embodiment will be described with reference to FIG. In this embodiment, the whole structure of the fully automatic washing machine is shown in FIG.
Since it is the same as the above, the description will be omitted, and the difference will be mainly described below.

Reference numeral 80 denotes a drive motor which is attached to the bottom of the receiving cylinder 81 and is composed of a stator 82 and a rotor 83. The stator 82 is provided with a plurality of teeth 84. Further, among the teeth 84 of the stator 82, a plurality of teeth 85 having a center b at a position displaced by a predetermined stroke s from the center a in the thrust direction are formed. Reference numeral 86 is a hollow dehydrating shaft mounted by a bearing case 83 having bearings 82 mounted on the bottom surface of the receiving cylinder 81 at predetermined intervals, and 87 is the dehydrating shaft 86.
And a bearing 89 in the dehydration shaft 86.
The washing shaft is supported by the pulsator 90 and is attached to the end thereof. Further, fixed meshing teeth 91 are provided at the end of the dehydration shaft 86. The rotor 83 is attached by a washing shaft 87 and a spline 92 so as to be movable by a predetermined stroke s in the thrust direction. Further, 93 is a movable meshing tooth which is formed on the surface facing the fixed meshing tooth 91.

The operation of the above configuration will be described. In the washing and rinsing process, the teeth 84 are excited by the motor control unit 79, which drives the rotor 83 to rotate the pulsator 90 via the washing shaft 87. When the dehydration process is further entered, the teeth 85 are excited by the motor controller 79. This makes teeth 85
The rotor 83 having a center at a position deviated by a predetermined stroke S is attracted by the magnetic force in the thrust direction generated at this time and moves by a predetermined stroke S. As a result, the fixed meshing teeth 91 provided on the dehydration shaft 86 mesh with the movable meshing teeth 93 provided on the rotor 83, and the power of the rotor 83 is interlocked with the dehydration shaft 86 to rotate the dehydration tank 88.

As described above, according to the present invention, by simply separating the washing and dewatering teeth, a special mechanism for disconnecting the dewatering shaft and the washing shaft is not provided, and the cost is low and the reliability is high. It is possible to provide a high-quality switching structure for washing and dehydration.

Next, a seventh embodiment will be described with reference to FIG. In this embodiment, the whole structure of the fully automatic washing machine is shown in FIG.
Since it is the same as the above, the description will be omitted, and the difference will be mainly described below.

A hollow dehydrating shaft 18 attached to the bottom surface of the receiving cylinder 15 by a bearing 22, a dehydrating tank 95 fixed to the dehydrating shaft 18 and provided with an engaging portion 94 at the bottom, and a dehydrating shaft 96.
A washing shaft 98 supported inside by a bearing 97, and a pulsator 100 provided with several airtight hollow stirring blades 99 mounted so as to be movable in the thrust direction with the washing shaft 98.
The pulsator 100 is provided with a movable meshing portion 101 provided at a position facing the meshing portion 94, and a drive motor 102 which is interlocked with the washing shaft 98. (Not shown) The operation of the above configuration will be described. During the washing and rinsing process, the pulsator 100, which is in the wash water, lifts up by a predetermined stroke S due to the buoyancy of the airtight stirring blade 99, and the pulsator 1 moves from the meshing portion 94 provided in the dehydration tank 95.
00, the movable meshing portion 101 is separated, and the drive motor 102 rotates only the pulsator 100. Further, during dehydration, washing water is drained and the pulsator 100 falls downward due to its own weight. As a result, the movable meshing portion 101 of the pulsator 100 and the meshing portion 94 of the dehydration tank 95 are meshed and coupled, and the torque of the drive motor 102 is transmitted to the dehydration shaft 96 to rotate the dehydration tank 95.

As described above, according to the present invention, since the dehydration shaft and the washing shaft are disconnected from each other by the buoyancy of the washing water at the time of washing, a complicated mechanism portion for switching is not provided, and the cost is low and the product is reliable. It is possible to provide a high laundry / dehydration switching configuration.

[0051]

As described above, according to the present invention, a dehydration shaft and a washing shaft can be switched with a simple structure using a male screw and a nut, and a low-cost and highly reliable clutch mechanism can be provided. Further, with a simple configuration using a commercially available solenoid, it is possible to switch between the dehydration shaft and the washing shaft, and it is possible to provide a highly reliable clutch mechanism at low cost. Furthermore, the dehydration shaft and the washing shaft can be switched with a simple structure using a solenoid and a fitting portion between the bearings, and a low-cost and highly reliable clutch mechanism can be provided. Further, it is possible to provide a highly reliable clutch mechanism at low cost by switching between the dehydration shaft and the washing shaft with a simple structure using a male screw and a sphere guided by the male screw. Further, by providing the drive motors for washing and dehydration, it is possible to easily switch the dehydration shaft and the washing shaft, and it is possible to provide a highly reliable clutch mechanism at low cost. Further, by using the magnetic force of the stator, it is possible to easily switch between the dehydration shaft and the washing shaft, and it is possible to provide a highly reliable clutch mechanism at low cost. Furthermore, since the dewatering shaft and the washing shaft are uncoupled by the buoyancy force of the washing water, a complicated structure for switching is not provided, and a low-cost and highly reliable washing / dewatering switching structure is provided. You can

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a fully automatic washing machine showing a first embodiment.

FIG. 2 is a sectional view of an essential part showing a clutch mechanism in the first embodiment.

FIG. 3 is a cross-sectional view of essential parts showing a clutch mechanism according to a second embodiment.

FIG. 4 is a sectional view of an essential part showing a clutch mechanism in a third embodiment.

FIG. 5 is a cross-sectional view of essential parts showing a clutch mechanism in a fourth embodiment.

FIG. 6 is a cross-sectional view of essential parts showing a clutch mechanism in a fifth embodiment.

FIG. 7 is a sectional view of an essential part showing a clutch mechanism in a sixth embodiment.

FIG. 8 is a sectional view of an essential part showing a clutch mechanism in a seventh embodiment.

FIG. 9 is a vertical sectional view of a dehydration tank type washer / dryer in a conventional example.

[Explanation of symbols]

 15 Receptacle 16 Main body 17 Suspension 18, 33, 46, 57, 86 Dehydration shaft 21 Dehydration tank 22 Bearings 23, 37, 47, 61, 74, 87 Washing shaft 26, 90, 100 Pulsator 27, 68 Drive motor 31, 36 , 47, 93, 101 movable meshing teeth 32, 39, 45, 91 fixed meshing teeth 34 serration 65 male screw portion 66 spherical body 71 washing rotor 73 dewatering rotor 94 meshing portion

Claims (7)

[Claims] 1. A main body, a receiving cylinder supported by a suspension in the main body, a hollow dehydrating shaft supported by a bearing on a bottom surface of the receiving cylinder, a dehydrating tank fixed to the dehydrating shaft, and the dehydrating shaft. A washing shaft supported by a bearing inside and having a pulsator attached in the dehydration tub, a drive motor interlocked with the washing shaft, a male screw portion provided on the outer periphery of the washing shaft, and an inner periphery of the male screw. A nut having a meshing and outer circumference slidably fitted in a groove provided in the inner surface of the dehydration shaft in the longitudinal direction is provided.The nut is displaced in the thrust direction by the rotation of the washing shaft, and the end part moves a predetermined stroke. A fully automatic washing machine equipped with a clutch mechanism that connects the washing shaft and the dehydration shaft. 2. A main body, a receiving cylinder supported by a suspension in the main body, and a hollow dehydrating shaft which is attached to the bottom surface of the receiving cylinder by a bearing and has an end portion provided with a movable meshing portion that slides in the thrust direction. , A dehydration tub fixed to the dehydration shaft, a washing shaft supported by a bearing in the dehydration shaft and having a pulsator attached in the dehydration tub, and a drive provided with a meshing portion on a rotor portion in conjunction with the washing shaft. A motor and a solenoid including an iron core and a coil for moving the movable meshing portion are provided, and the movable meshing portion is moved by the movement of the iron core of the solenoid to release the connection with the meshing portion of the rotor portion. A fully automatic washing machine with a clutch mechanism that can disconnect the dehydration shaft and the washing shaft. 3. A main body, a receiving cylinder supported by a suspension in the main body, a hollow dehydrating shaft mounted by a bearing case having bearings mounted on the bottom surface of the receiving cylinder at a predetermined interval, and the dehydrating shaft. A dehydration tub fixed to the shaft, a meshing part provided inside the dehydration shaft, a washing shaft supported by a bearing in the dehydration shaft and having a pulsator attached in the dehydration tub, and a spline or the like fitted to the washing shaft. The movable meshing portion includes a movable meshing portion that slides in the thrust direction inside the dehydration shaft, a spring that returns the movable meshing portion, a solenoid that is formed between the bearings, and a drive motor that is interlocked with the washing shaft. Is displaced in the thrust direction by the electromagnetic force of the solenoid, connected to the meshing part of the dehydration shaft, and released by the spring to control the dehydration shaft and the washing shaft. Fully automatic washing machine provided with a clutch mechanism for releasing linked to. 4. A main body, a receiving cylinder supported by a suspension in the main body, a hollow dehydrating shaft mounted by a bearing case having bearings mounted on the bottom surface of the receiving cylinder at a predetermined interval, and the dehydrating shaft. A dehydration tub fixed to the shaft, a washing shaft supported by bearings in the dehydration shaft and having a pulsator attached to the end, a male screw part of a predetermined number of turns provided on the washing shaft, and a male screw of the washing shaft. And a drive motor which is interlocked with the washing shaft, and the sphere moves inside the dehydration shaft by a guide of the male screw portion by the rotation of the drive motor to rotate a predetermined amount. In number, the sphere wedge-bonds to the dehydration shaft at the end of the male thread. This is a fully automatic washing machine equipped with a clutch mechanism that connects the washing shaft and spin-drying shaft and releases them by reversing them. 5. A hollow having a main body, a receiving cylinder supported by a suspension in the main body, and a dewatering rotor supported by a bearing mounted on the bottom surface of the receiving cylinder and having an end formed of a permanent magnet or the like. A dehydration shaft, a dehydration tub fixed to the dehydration shaft in the water tub, a washing shaft supported by a bearing in the dehydration shaft, and a washing rotor connected to the washing shaft and configured by a permanent magnet or the like. The washing rotor is provided with a stator including an iron core and a winding fixed between the dehydration rotor and the washing rotor, and a motor control unit that controls driving of the dehydration rotor and the washing rotor. Fully automatic washing machine that drives the spinner and drives the spin-drying rotor during spin-drying. 6. A main body, a receiving cylinder supported by a suspension in the main body, a hollow dewatering shaft supported by a bearing mounted on the bottom surface of the receiving cylinder, and an engaging portion provided at an end thereof, and the inside of the water tank. A dehydration tank fixed to the dehydration shaft, a washing shaft supported by bearings in the dehydration shaft, a rotor connected to the washing shaft by a spline or the like so as to be movable in the thrust direction, and composed of a permanent magnet or the like. When,
A movable meshing portion provided to the rotor at a position facing the meshing portion, a stator formed of a plurality of teeth, which is fixed to the rotor magnet surface with a predetermined gap, and is fixed. A motor control unit that controls the drive of the rotor, and a part of the teeth of the iron core is displaced from the center of the magnetic field of the permanent magnet of the rotor in the thrust direction by a certain distance to energize only during washing or dehydration. Washing machine. 7. A main body, a receiving cylinder supported by a suspension in the main body, a hollow dehydrating shaft mounted on the bottom surface of the receiving cylinder by a bearing, and an engaging portion fixed to the dehydrating shaft at a lower portion. A dehydration tub, a washing shaft supported by bearings in the dehydration shaft, a pulsator attached to the washing shaft so as to be movable in the thrust direction, and a pulsator having several airtight hollow stirring blades, and the pulsator being engaged with the pulsator. A movable meshing portion provided at a position facing the portion, and a drive motor interlocking with the washing shaft, the movable meshing portion floats in the thrust direction due to water injection during washing, and disconnects from the dehydration tub meshing portion. Fully automatic washing machine equipped with a clutch mechanism.