JPS59183797A - Drive apparatus of dehydrating washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This invention relates to a dehydrating washing machine that rotates in one direction.

(B) Conventional technology In conventional washing machines, the rotary blades and the washing and dehydrating tank were driven by separate motors, or they were driven by a common motor in 4-wheel drive. By driving the tropic motor alternately left and right, it was rotated alternately left and right.

By the way, in recent years, in order to reduce damage to the fabric, there has been a trend toward increasing the diameter of rotary blades, lowering the number of rotations, and shortening the reversal period to frequently rotate left and right alternately. When the cycle becomes shorter, if a single bidirectional motor is used to rotate left and right alternately to rotate the rotor blades, the temperature of this motor will rise significantly, resulting in a shortened lifespan.

In addition, in order to rotate one motor in both left and right directions, the motor's coil windings must be thick and long for both the main and auxiliary windings, which increases the size of the motor body and increases costs. Met.

(c) Purpose of the Invention An object of the present invention is to suppress the temperature rise of the motor to a low level even when the rotor blades are frequently rotated left and right alternately, and to reduce the unit cost by downsizing the motor.

B) Structure of the Invention The present invention provides a dewatering/washing motor that rotates a rotary blade in a direction in which a washing/dehydrating tank rotates during dewatering and also rotates a dehydrating tank, and a washing motor that rotates a rotary blade in a direction opposite to the above-mentioned direction. By providing a dedicated motor, the rotor blades are rotated by separate motors depending on the direction of rotation, and the rotation time of each motor is halved and the rest time is doubled, thereby suppressing temperature rise. Furthermore, by making the motor unidirectional so that it rotates only in a predetermined direction, the thickness of the auxiliary winding can be made thinner and the length shorter, thereby reducing the size and unit cost.

(e) Explanation will be given based on embodiment figures. (tl is an outer box, in which an outer tank (3) with a washing and dehydrating tank (2) installed inside is suspended by a plurality of hanging rods (4) in a vibration-proof manner. Dehydrating tank (2) A large number of dehydration holes (5) are provided on the peripheral wall of the dehydration tank (2), and a balance ring (6) is attached to the mouth edge of the dehydration tank (2).
A rotary blade (7) is provided at the center of the bottom. The dehydration tank (2) is connected to a dehydration tank cylindrical shaft (9) via a bottom substrate (8), and this cylindrical shaft (9) is connected to a bearing (II) in a bearing case attached to the bottom of the outer tank (3). It is pivoted at Q2). (13) is between the bearing case (10) and the bottom opening edge (14) of the outer tank (3) and between the bearing case (10)
This is a water seal member that provides a water seal between the head (9) and the head (9) of the cylinder shaft (9). The rotary blade (7) is pivotally supported via the blade shaft (oil-less metal h Q7 in the cylinder shaft (9)). (I8) is a thrust metal, and f+9) is an oil seal.

There are two boobies IJ-(20
j [2]] is attached via clutch spring +22) (23+).

The clutch spring (22) has its upper end engaged with the boss part (24) of the upper pulley holder and is wound around the wing shaft (I), and the lower end of the clutch spring (23) is attached to the boss part (24) of the lower pulley holder. ) is attached to the boss part (2 (5)) and wrapped around the wing shaft (15), and both clutch springs (2a
(243) has the same winding direction. A dehydration/washing motor (28) and a washing motor (29) are attached to the bottom of the outer tank (3) via the mounting base (2(i), f2 powder).A dehydration/washing motor (28) Two pulleys, large and small, f311 and f321 are fixed to the shaft (toward), and a belt (33) is wound between this dog pulley (321) and the upper pulley (20), and a washing motor (29)
A belt 36 is wound between the pulley (35I) fixed to the shaft (34) of the lower pulley (2I) and the lower pulley (2I).

Above the upper pulley saddle on the outer periphery of the wing shaft (E), a pulley ((support) is further pivotally supported via a metal frame, and a belt ((support)) is mounted between this pulley (138) and the small pulley (131). The theory is wrapped around the pulley (371 boss part (4G) and the lower outer circumferential surface of the cylinder shaft (9). A clutch spring (whole) is wound around the outer circumference of the clutch spring +41. The lower end of the mold wheel (4) having a pawl (42) is fitted and clutch spring f41 is engaged with this mold wheel (43). By disengaging the
The pulley (controls whether or not the rotation of the audience is transmitted to the sleeve sleeve t91.

A brake wheel (471) is fixed to the cylinder shaft (9), a brake band (471) is elastically fitted to the outer periphery of this wheel (4G) via a brake lining, and a bent piece (brake band (471) at one end of the band (4 Lever (applies or disengages the cylinder shaft (9) when the machine engages or disengages. Brake lever (four-wheel lever) or clutch lever (brake lever) is a well-known type that is operated by a common solenoid. be.

Next, the operation will be explained. When washing, press the brake lever (4
8) engages with the bent piece (46) at one end of the brake band to apply a brake to the dehydration tank sleeve (9), and at the same time, the clutch lever f441 engages with the pawl f4Z of the model wheel, and the clutch spring (41) is prevented from being tightened by the rotation of the pulley 138), and no rotational force is transmitted to the cylinder shaft (9). In this state, the dewatering/washing motor (28) and the washing motor (29) rotate alternately. That is, the dehydration/washing motor □□□ rotates in the direction of rotating the dehydration tank (dehydration direction) during dehydration, and the washing motor (29) rotates in the anti-dehydration direction. The rotation of the motor (28) is as follows:
)-f32), the belt side, the pulley (a), and the clutch spring (22) are transmitted to the blade shaft (river), which rotates the rotor blade (7) in the dewatering direction, and the rotation of the motor (29) is caused by the pulley (l(5), bell) (3 sleep pulley (
21), clutch spring force) to the wing shaft (15)
is transmitted, causing the rotor (7) to rotate in the anti-dehydration direction.

The clutch springs (t22) (231) are tightly wound around the wing shaft (! group) by rotation of the pulley thickness in the dewatering direction and rotation of the pulley (21) in the anti-dehydration direction. is the pulley (
While the blade shaft (21) is rotating in the anti-dehydration direction, the clutch spring (23) prevents rotation in the same direction from being transmitted to the pulley plate, and the clutch spring (23) prevents the pulley plate from rotating in the dehydration direction. At the same time, rotation of the wing shaft 051 in the same direction is prevented from being transmitted to the pulley (21).

The driving mode of both motors (28) (29+) is, for example, motor (2) rotates in the dehydration direction for 2 seconds, and 1 second after this motor (2) stops, motor (29) rotates in the anti-dehydration direction. It is driven in a cycle in which the motor (c) rotates for 2 seconds in the dewatering direction, and 1 second after the motor (29) stops, the motor (c) rotates in the dewatering direction for 2 seconds.

In this way, the rotor blades are rotated by separate motors depending on their direction of rotation, so compared to the conventional system in which one motor rotates left and right alternately, the rotation time of each motor is halved and the rest time is reduced to 2. Since the temperature is doubled, the temperature rise will be lower.

During dewatering, the clutch lever (42) is disengaged and the brake lever (old) and the bent piece (4ω) are also disengaged, and only the washing and dewatering motor (28) moves in the dehydrating direction. The small pulley +311 and the belt (
3ω, pulley +381, clutch spring (41
), the rotational force is transmitted to the cylinder shaft (9), and the dehydration tank (2) is
Rotate.

(f) Effects of the Invention According to the present invention, the rotary blades are rotated by separate motors, the dehydration/washing motor and the washing-only motor, depending on the direction of rotation, so the rotary blades are frequently rotated alternately left and right. However, the temperature rise of each motor can be suppressed to a low level, and the service life of each motor can be maintained for a long time without any special consideration given to the cooling device. In addition, since both motors are unidirectional, the dewatering/washing motor only rotates in the dehydrating direction, and the washing motor only rotates in the anti-dehydrating direction, so the auxiliary winding can be made thinner and shorter in length, making it more compact. This makes it possible to reduce the unit price, and even if the same two motors are used, it is cheaper and lighter than the conventional motor that uses a dehydration motor and a bidirectional washing motor. .

[Brief explanation of drawings]

The drawings show a dehydrating washing machine according to the present invention, and FIG. 1 is a longitudinal cross-sectional view of the entire machine and the rest, and FIG. 2 is a longitudinal cross-sectional view of the main part. (2)...Washing/dehydration tank, (7)...Rotary blade, (4
υ...Clutch spring (clutch mechanism), (28
)-...Washing and dewatering motor, (29)...Washing-only motor. 569-

Claims (1)

[Claims] ■ In a dehydrating washing machine, a rotary blade is provided in the washing and dehydrating tank, and the rotary blade rotates left and right alternately during washing, and the dehydrating tank is rotated in one direction during dehydration. A dehydrating washing machine comprising: a dehydrating/washing motor that rotates the rotary blades in the direction in which the blades rotate, and also rotates the dehydrating tank via a clutch mechanism; and a washing-dedicated motor that rotates the rotary blades in the opposite direction to the above-mentioned direction. Drive device.