JPS618095A - Dehydrator-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 Field of the Invention The present invention relates to a dehydrating washing machine in which a tank is rotationally driven from a drive motor shaft via a clutch device.

Conventional structure and its problems In a conventional dehydrating washing machine, a Goo IJ- is fixed to the drive motor, and the drive shaft is rotationally driven via a belt, and the dehydrating/washing tub and stirring blade are connected via a clutch. However, especially when performing so-called intermittent dehydration in which the motor is turned on and off during dehydration, the clutch is repeatedly connected and disconnected, and the clutch spring that makes up the clutch repeatedly loosens. , impact force is applied to the clutch spring, resulting in problems such as shortened durability and generation of impact noise (clutch noise).

Conventionally, no means has been taken to alleviate the impact applied to the clutch portion. Therefore, if a dehydrating washing machine with this type of structure is equipped with a device to control the rotation speed during dehydrating operation, the motor will be frequently turned on and off, making the above-mentioned phenomenon even more pronounced. became.

OBJECTS OF THE INVENTION An object of the present invention is to reduce the range of increase/decrease in the number of revolutions of a motor when the motor is turned on and off, and to ensure a relatively constant number of revolutions.

Structure of the Invention The present invention includes a tank, a stirring blade at the bottom of the tank, and a motor for driving the stirring blade and the tank.
and a clutch device for switching drive to the stirring blade and the tank. Wow. *IH1!1
K7y i7. is installed on the 0.31 side, that is, the operation of the motor shaft (
Even if the motor is turned on (on) and stopped (off) repeatedly, the number of revolutions of the motor remains relatively constant.

Description of examples An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a main body, in which a washing tank 2 containing a tank 6 is disposed. 07 is elastically supported through the tank 6
An agitation blade placed at the center of the bottom of the washing machine stirs the laundry and performs the washing action. Reference numeral 8 indicates a motor that is a rotational drive source for the stirring blade 7 and the tank 6, and 9 indicates a drive shaft 1 of the motor 8.
The rotation of the motor 8 is decelerated and transmitted to the stirring blades 7 by a deceleration drive device driven by a gear shaft 11.

12 is a clutch device that selectively drives the tank 7 to rotate through the motor shaft 1o, shift latch boss 13, and clutch spring 14. 16 is a flywheel fixed to the motor shaft 1o.

This flywheel 15 is used when the motor 8 is frequently turned on and off in order to prevent the rotational speed of the tank 6 from rising above a certain rotational speed, such as during so-called intermittent dehydration operation in which the rotational drive to the tank 6 is started or stopped. When controlling one clutch, the clutch spring 14 is provided to stabilize the rotation in order to reduce the impact caused by repeated tightening and loosening of the clutch boss 13.
4 prevents a loud impact sound from being made when moving from a loose state to a tightened state.0 Also, when motor 8 is turned off, tank 6 has a large rotational inertia, so it suddenly rotates. Although the motor 8 continues to rotate without slowing down, the rotation speed decreases rapidly because the motor 8 has little acclimation force. As a result, the rotation speed of the tank 6 is faster than that of the motor 8, and the driving direction of rotation is reversed, so that the clutch spring 14 becomes even more loose. Next, when the motor 8 is turned on, the largely loosened clutch spring 14 is suddenly tightened in the opposite direction, making this impact noise even worse. However, the flywheel 15 prevents the motor rotation speed from dropping rapidly when the motor 8 is turned off, and also allows the rotation speed to rise slowly when the motor 8 is turned on.

Effects of the Invention As described above, according to the present invention, the motor rotates at a stable rotation speed even when the motor power is turned on and off, so that the repetitive impact of tightening and loosening applied to the clutch spring is extremely small. There is little clutch engagement/disconnection noise, and the life of the clutch device is significantly extended.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a dehydrating washing machine according to an embodiment of the present invention, and FIG. 2 is a detailed structural diagram of a clutch device of the dehydrating washing machine. 6... Tank, 7... Stirring blade, 8...
...Motor, 12...Clutch device, 15
······Flywheel. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (1)

[Claims] This dehydrating washing machine is provided with a flywheel on the drive shaft of a clutch device that switches the drive of a dehydrating/washing tub and a stirring blade provided at the bottom of the dehydrating/washing tub.