JPH0464394A - Drum type washing machine - Google Patents

Abstract

PURPOSE:To obtain the stably balanced effect of the title machine, by a method wherein a drum is formed so that the diameter thereof is enlarged toward that side thereof at this side, and on that side, a balancer for smoothing the rotation of the drum is provided; on the other hand, on that side of an outer receptacle, an opening for inserting the drum is provided and a wall surface part with which the opening is covered is provided, and the outer receptacle is formed so that the diameter thereof is enlarged toward that side thereof at this side. CONSTITUTION:A drum 13 is formed of synthetic resin, and is composed of a cylindrical body part 18 with a bottom, and a fluid balancer 19 fixed to the open end part of the body part 18, and an end plate 20 fixed to the end face of the balancer 19. On the body part 18, a drawing inclination of about 1.5 deg. is formed for the molding thereof, and the diameter thereof is gradually enlarged toward the open end thereof, at the closed end thereof. The balancer 19, hollow and ringed, is enclosed with a definite amount of brine and at the inside thereof, resistant members for restricting the flow of the brine are formed at regular intervals. In addition, recesses 22... formed alone the inner periphery of the balancer 19 act as other resistant members. In this way, since the balance effect of the drum is effectively obtained, the drum can be smoothly rotated.

Description

[Detailed description of the invention] (b) Industrial application fields The present invention relates to a drum type washing machine.

(B) Conventional technology As a conventional example, an outer tank is supported within a frame, a horizontal shaft type drum is rotatably supported within the outer tank, and by rotating the drum, A washing machine for washing laundry in which an annular balancer is disposed on the rotating shaft of the drum is disclosed in Japanese Patent Application Laid-open No. 54-26071 (
D06F37/22).

(c) Problems to be solved by the invention In the conventional example, the balance performance of the balancer differs depending on whether the laundry is near or far from the balancer in the drum, and a stable balance effect is not achieved. I have a problem that I can't do.

The present invention relates to improvements in drum-type washing machines and is intended to solve these problems.

(d) Means for Solving the Problems The present invention supports an outer tank in a frame, rotatably supports a horizontal shaft type drum in the outer tank, and rotates the drum to perform washing. The drum-type washing machine performs washing operations such as washing and dehydration, and the drum is configured to expand in diameter from one end side to the other end side, and the other end of the drum is configured to control the rotation of the drum. A balancer is provided to ensure smoothness, an opening for inserting the drum is provided at the other end of the outer tank, and a wall portion is provided to shield this opening; The diameter is expanded from one end toward the other end.

(E) Effect: The laundry inside the drum is moved by the slope of the drum circumference.
It is directed to move close to the balancer, and the balancer's balancing effect is maximized.

Furthermore, since the peripheral wall of the outer tank is expanded in diameter in the same direction as the drum, the dead space between the drum and the outer tank is reduced.

(f) Example Embodiments of the present invention will be described based on the drawings.

1 is a sheet metal frame, 2 is a top plate disposed on the top of this frame, 3 is a clothes slot A formed in the center of the top plate 2, and 4 is a top lid for opening and closing this slot A3. ,
Reference numeral 5 designates an outer tank made of synthetic resin that is elastically suspended and supported within this frame l, and is formed into a bottomed cylindrical shape with an opening 6 on the rear side. By providing a draft angle, the diameter gradually increases from the front side to the rear side. Reference numeral 7 denotes a rear plate that shields the opening 6, and a drying air passage 8, an air trap 9, etc. for introducing drying air into the outer tank 5 are integrally formed therein.

Reference numeral 10 denotes a drying heater disposed within the drying air passage 8. , 11 is a clothing input port B provided on the top surface of the outer tank 5.
, 12 is a bellows-shaped connecting pipe that connects the input port A3 and the input port Bll in a watertight manner, and 13 is a horizontal axis-type drum rotatably supported in the outer tank 5, with a large number of It has through holes 14... 15.16 is the drum 13
On the other hand, a washing motor and a dewatering motor are connected via a pulley and a belt, and the washing motor 5 reverses the drum 13 at low speed during washing, and the washing motor 5 rotates the drum 13 at a low speed during washing.
6 rotates the drum 13 in one direction at high speed during dewatering. 17 is an input key device.

The drum 13 is made of synthetic resin and includes a bottomed cylindrical body 18, a fluid balancer 19 attached to the open end of the body 18, and an end plate fixed to the end face of the balancer 19. It consists of 20.

The body portion 18 is formed with a die cutting slope of approximately 1° to 5 degrees during molding, and is drawn from the closed end (front side) to the open end (
The diameter gradually increases toward the rear (rear side).

The balancer 19 is a hollow annular body filled with a predetermined amount of salt water, and resistors 21 for regulating the flow of salt water are provided inside at predetermined intervals. 22... is a recess formed along the inner peripheral surface of the balancer 19,
This recessed portion 22... also plays the role of a resistor. and,
The outer periphery of the balancer 19 is fitted inside the open end of the body 18 and fixed with screws.

An annular recess 23 whose outer diameter is the same as the inner diameter of the balancer 19 and which projects inward of the drum is integrally formed in the center of the end plate 20. 19, the outer periphery of this recess 23 is fitted into the inner periphery of the balancer 19. Reference numeral 24 denotes a suction port provided at the center of the end plate 20 and facing the drying air passage 8.

Note that 25 and 26 are shafts provided at the end plate 20 and the closed end of the body 18, and are used to pivotally support the drum 13 in the outer tank 2.

When the drum 13 rotates, the laundry in the drum 13 is directed to move near the balancer 19 according to the inclination of its body 18, and the balancer 19 effectively exerts the balancing effect. .

Furthermore, when the drum 13 rotates, centrifugal force acts in the direction of the arrow in FIG. In addition, the joint 27 between the end plate 20 and the drum 13 is no longer parallel to the direction of arrow A (orthogonal direction, the direction of arrow B), and this joint 27 is less likely to be clogged with dirt.

(g) Effects of the Invention In the drum-type washing machine of the present invention, the balance effect by the balancer is effectively exerted, so that the drum rotates smoothly.

In addition, the dead space between the drum and the outer tank has been reduced, so the outer tank can be made smaller to fit the drum, making the device itself smaller, or the drum can be made larger to fit the outer tank.
It is possible to increase the storage capacity of the drum.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the washing machine of the present invention, FIG. 2 is a side sectional view of the washing machine, and FIG. 3 is an exploded perspective view of the drum. ■... Frame, 5... Outer tank, 6... Opening (opening),
7. Rear plate (wall part), 13. Drum, 19. Balancer.

Claims (1)

[Claims] (1) An outer tank is supported within the frame, a horizontal shaft type drum is rotatably supported within the outer tank, and washing operations such as washing and dehydration are performed by rotating the drum. The drum is configured to expand in diameter from one end to the other end, and a balancer is provided at the other end of the drum for smooth rotation of the drum, An opening for inserting the drum is provided on the end side, and a wall portion is provided to shield this opening, and the outer tank is configured to expand in diameter from one end side to the other end side. A drum-type washing machine featuring