JP6581430B2 - Drum washing machine - Google Patents

Description

  The present invention relates to a drum type washing machine.

  Japanese Patent Laid-Open No. 2006-110065 (Patent Document 1) states that “the laundry to be put in and out of the drum can be hardly caught near the front opening of the drum and the hand touches the front opening of the drum. In addition, it is difficult to feel the heat, and the number of parts can be reduced, thereby making it possible to reduce the manufacturing cost. "

JP 2006-110065 A

  In the technique described in Patent Document 1, the balance ring 4 is integrally provided with a rib for preventing the fabric from being caught in order to prevent the laundry from being caught near the front opening of the drum. However, the increase in washing capacity is not taken into consideration.

  SUMMARY OF THE INVENTION Accordingly, the present invention is to facilitate the drawing of clothes into a tub of a rotating drum, thereby reducing damage to clothes and improving the washing capacity.

In order to solve the above problems, a drum type washing machine according to the present invention includes a rotating drum into which laundry is put, an outer tub in which the rotating drum is placed, an outer frame in which the outer tub is placed, and a drive that drives the rotating drum. A rotating drum driving system including a motor, the rotating drum being provided on the outer peripheral side of the fluid balance ring, a drum tub into which the laundry is put, a fluid balance ring for balancing the rotation of the rotating drum, A fluid balance ring support plate having an end attached to the opening end of the rotary drum, and a cantilevered rotary support mechanism that supports one end side of the rotary shaft of the rotary drum, in the washing machine of arranging the balance ring, the front side of the rotary drum, and provided on the inner peripheral side of the fluid balance ring, the housing recess for housing the counterweight to adjust the rotation balance of the rotary drum The storage recess includes a storage inner peripheral wall, a storage outer peripheral wall, and a storage bottom wall, and the storage inner peripheral wall is provided with an inclined portion so as to spread on the outer peripheral side and the rotating drum, and the storage bottom wall; A space is provided between the fluid balance ring support plate and the straight line extending inward and in the radial direction of the rotary drum, and the extension line of the inclined portion is inclined so as to be in contact with the corner portion on the storage recess side of the fluid balance ring support plate. The inclination angle of the part shall be constituted.

  According to the present invention, it is possible to provide a drum type washing machine capable of reducing clothing damage and facilitating washing capacity by facilitating drawing of the clothing into the tank of the rotating drum.

It is a perspective view which shows the external appearance of the drum type washing machine which concerns on this embodiment. It is a longitudinal cross-sectional view of a washing mechanism main body. It is the perspective view which looked at the rotating drum from the front side. It is the expanded sectional view which expanded the front side part of the washing mechanism main part. It is the expanded sectional view which expanded the front side part of the washing mechanism main part.

  Hereinafter, modes for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the drawings as appropriate. In the following description, a drum type washing machine (hereinafter referred to as a washing machine) capable of performing steps from washing to drying will be described as an example. Moreover, below, it demonstrates on the basis of the direction when the washing machine S1 is seen from the front.

  As shown in FIG. 1, the washing machine S1 of the present embodiment has a casing 1 whose outer shell is configured by combining a steel plate and a resin molded product, and the casing 1 is mounted on a base 1h. Has been. The housing 1 includes left and right side plates 1a and 1b (see FIG. 4 for 1b), a front cover 1c, a back cover 1d (see FIG. 2), an upper cover 1e, and a lower front cover 1f. The left and right side plates 1a and 1b are joined by a U-shaped upper reinforcing material (not shown), a front reinforcing material (not shown), and a rear reinforcing material (not shown), and include a base 1h. A box-shaped housing 1 is formed and has sufficient strength as a housing.

  A door 2 that closes an insertion port for putting in and out clothes (laundry, objects to be dried) is supported at a substantially center of the front cover 1c so as to be openable and closable by a hinge provided in the front reinforcing material. . A front cover 1 c in the vicinity of the door 2 is provided with a door release button 3 for releasing a lock mechanism (not shown) of the door 2. When the door release button 3 is pressed, the lock mechanism (not shown) is released and the door 2 is opened. When the door 2 is pressed against the front cover 1c, the door 2 is locked and closed.

  An operation panel 4 including a power switch 4a, operation switches 4b and 4c, a display 4d, and the like is provided at the upper center of the housing 1. The operation panel 4 is electrically connected to a control device (not shown) provided at the lower part of the housing 1. Further, on the left side of the operation panel 4, a drawer-type tray 5 into which a detergent, a softening agent, or the like is charged is provided.

  In addition, on the right side of the operation panel 4, a pull-out drying filter 6 is provided. The dry filter 6 is configured to remove lint and the like. Further, the upper surface cover 1e is provided with a water supply hose connection port 7a from the water tap and a water absorption hose connection port 7b for remaining hot water in the bath.

  As shown in FIG. 2, the rotary drum 11 includes a drum tank 11 a and a fluid balance ring 13. The drum tank 11a is made of stainless steel, and the fluid balance ring 13 is made of synthetic resin. The drum tank 11a has a body part, a back side wall part, and a front opening. When the rotary drum 11 is placed vertically, the rear side wall portion becomes the bottom portion, and the front opening portion becomes the upper opening portion. The rotary drum 11 is supported by the drive motor via a flange 17 provided on the outer side surface of the back side wall. That is, the rotating drum 11 supports one end side (the back side wall portion and the franc 17) in the direction of the rotation axis with a rotating drum driving system including a driving motor, and fluid balance to the other end side opposite to the one end side. A ring 13 is arranged. This is a so-called cantilevered rotation support mechanism, and is provided with a fluid balance ring 13 at the opening of the drum tank 11a opposite to the support side so as to suppress the rotation imbalance.

  The fluid balance ring 13 reduces the vibration of the unbalancer due to the laundry 9 during the dehydrating operation. As shown in FIG. 4, the fluid balance ring 13 includes a fluid storage portion 30 and a storage recess 31 in which the counterweight 33 is stored. The counterweight 33 is for adjusting the rotational balance of the rotary drum 11. The fluid storage unit 30 includes a plurality of fluid storage chambers 30a, 30b, 30c, 30d, and 30e. The annular fluid storage chambers 30a, 30b, 30c, 30d, and 30e are arranged in the radial direction and are concentrically arranged with respect to the rotational axis of the drum tank 11a.

The fluid storage chambers 30a, 30b, 30c, 30d, and 30e are provided with ribs (not shown) in the radial direction so that the fluid does not flow freely without resistance in the circumferential direction. As the fluid for filling the fluid storage chamber, an aqueous solution of sodium chloride, potassium chloride, calcium chloride or the like is used as a material that has a high specific gravity and does not decay.

  The fluid balance ring support plate 40 is formed of a stainless steel plate, and the outer peripheral end is fastened to the opening end of the drum tank 11a by folding. Since the fluid balance ring is supported by the fluid balance ring support plate 40, the fluid balance ring is firmly supported so as to withstand strong vibration, unlike the case where the fluid balance ring is directly attached to the drum tank 11a. The outer tank cover 32 is provided so as to cover the fluid balance ring 13 from the outside. The outer tub cover 32 is attached and supported on the front side (opening end side) of the outer tub 2 at the outer peripheral side.

The fluid balance ring 13 is provided with a storage recess 31 into which the counterweight 33 is inserted. The counterweight 33 is attached to the lighter weight because the rotational balance of the rotary drum 11 is unbalanced. Thereby, the imbalance of rotation balance is adjusted and the rotating drum 11 without rotation imbalance can be provided. Further, the counterweight 33 is appropriately weighted according to the unbalance of the rotation balance, so that the unbalance adjustment of the rotation balance is performed more appropriately. In this way, by adjusting the rotational imbalance existing in the rotating drum itself with the counterweight, it is possible to provide a washing / drying machine with less vibration even in the dehydrating operation by rotating the rotating drum at a high speed dewatering rotation (about 1700 RPM).

  The storage recess 31 is formed by a storage inner peripheral wall 31a, a storage outer peripheral wall 31b, and a storage bottom wall 31c. The storage inner peripheral wall 31 a is provided with an inclined portion 31 a ′ so as to spread on the outer peripheral side and the rotating drum 11. Further, the fluid balance is a straight line formed by the surface where the fluid balance ring support plate 40 and the fluid storage chambers 30a, 30b, and 30c are grounded (a straight line in which the fluid balance ring support plate 40 extends inward in the radial direction of the rotary drum 11). A gap 50 (a region surrounded by a dotted line in FIG. 4) is provided between the ring support plate extension 40a and the storage bottom wall 31c.

  The inclined portion 31 a ′ can reduce clothing damage by drawing the clothing into the tank of the rotary drum 11, and the washing capacity can be improved by the gap 50.

  Further, as shown in FIG. 5, the extension line 51 of the inclined portion 31 a ′ configures the inclination angle of the inclined portion 31 a ′ so as to contact the corner portion 52 of the fluid balance ring support plate 40. Thereby, drawing-in can be further promoted in the tank of the rotating drum 11 of clothes, and damage to clothes can be reduced.

  Further, as shown in FIG. 5, the axial length 53 of the rotary drum 11 of the gap 50 is preferably about half of the inner peripheral wall 40 a of the fluid balance ring support plate 40. Accordingly, it is possible to improve the washing capacity while securing the capacity for inserting the counterweight 33 into the storage recess 31.

Claims (1)

A rotating drum into which the laundry is placed;
An outer tank in which the rotating drum is placed;
An outer frame for placing the outer tub,
A rotary drum drive system including a drive motor for driving the rotary drum,
The rotating drum is provided on a drum tub into which the laundry is put, a fluid balance ring that balances the rotation of the rotating drum, and an outer peripheral side of the fluid balance ring, and an outer peripheral end is an opening end of the rotating drum. A fluid balance ring support plate mounted,
A rotating support mechanism that supports one end of the rotating shaft of the rotating drum and that supports the fluid balance ring on the other end.
A storage recess is provided on the front side of the rotating drum and on the inner peripheral side of the fluid balance ring, and stores a counterweight for adjusting the rotation balance of the rotating drum,
The storage recess includes a storage inner peripheral wall, a storage outer peripheral wall, and a storage bottom wall,
The storage inner peripheral wall is provided with an inclined portion so as to spread on the outer peripheral side and the rotating drum,
A space is provided between the storage bottom wall and a straight line in which the fluid balance ring support plate extends radially and inward of the rotary drum,
The drum-type washing machine according to claim 1, wherein an extension line of the inclined portion constitutes an inclination angle of the inclined portion so as to be in contact with a corner portion of the fluid balance ring support plate on the storage recessed portion side.

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