JPS6056517B2 - drum type washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drum-type washing machine that performs so-called tumble washing by placing clothes in a rotating drum. The purpose is to improve the washing effect.

The rotating drum of this type of washing machine has a plurality of long baffles integrally formed on the inner surface of the washing machine so as to protrude along the washing machine side wall, and is rotated by horizontally supporting the baffles at both ends.

A slide core has been used when the rotating drum and baffle are integrally molded from resin. Use of such a slide core has the drawbacks of complicating the molding operation and lengthening the molding cycle.

Therefore, as a molding method that does not use a slide core, it is conceivable to provide a mold cutting slope on the side wall of the rotary drum and to also make the tip of the baffle tilt to one side in accordance with the slope. However, during rotation, the clothes move to one side along the gradient or slope and accumulate, resulting in a new drawback: the clothes become a cushion, reducing the washing effect and increasing vibration. . The present invention aims to eliminate the above-mentioned drawbacks, and the opening provided at the expanded end of the slope for die cutting is closed with an end plate, and the inner surface of this end plate is placed at the starting end of the slope, that is, the bottom side of the drum. It was tilted.

As a result, even if the clothes that are hung up by the baffle shift toward the opening, when they fall, they move backwards toward the bottom along the slope of the inner surface of the end plate, preventing the clothes from accumulating on the opening side and loosening them. Can be done. Further, by integrally forming ribs protruding from the inner surface of the end plate, clothes can be rubbed when falling. Hereinafter, the present invention will be described based on drawings showing embodiments. Reference numeral 1 denotes a rotary drum made of resin molded into a cylindrical body with a bottom, and an opening 2 is closed with an end plate 3. Short cylindrical shafts 5, 5 are provided protruding from the outer surface, and are rotatably supported by these shafts 5, 5 so as to be rotatable in the horizontal direction with the bottom surface 4 at the front and the end plate 3 at the rear.

Here, the side wall 6 of the rotating drum 1 has a slope for mold cutting so as to widen toward the opening 2, and the through hole 7...
. . , and an entrance for putting in and taking out clothes W, which is covered with a lid 8. The inner surface 9 of the end plate 3 is inclined so that the center thereof protrudes toward the bottom surface 4, and the inner surface 9 has concentric circles as shown in FIG. 4A, and as shown in FIG. Annular and radial reinforcing ribs 10 are integrally formed to protrude.

Incidentally, the ribs shown in FIGS. 4 and 5 may be integrally formed on the bottom surface 4 as needed. 11... are three mountain-shaped baffles that are integrally formed in the inner surface of the circumferential wall 6 at a rotation angle of about 120 degrees to protrude in the axial direction. The opening angle θ of the peaks is formed so as to become lower in order toward the opening side, and the opening angle θ of the peak becomes smaller in order toward the opening side.

That is, the angle θ1<θ2 in the figure. 12... are upper and lower ribs integrally formed between the baffles 11... on the inner surface of the circumferential wall 6 (excluding the part where the entrance is for clothing), and lower ribs 12''... are provided parallel to the baffle 11 to be long in the axial direction and gradually narrowed toward the opening 2, and the upper ribs 12''... are provided on the lower half of the upper bottom surface 4 side. . . . It is provided with a smaller width and gradually reduces in width toward the opening 2.

Next, to explain the operation of the present invention, first open the lid 8 and put the clothes W into the rotating drum 1, and then supply water to a predetermined water level in the outer tank (not shown) housing the rotating drum 1. Then, after adding detergent in an appropriate amount, the rotating drum 1 is rotated.

As a result of this rotation, the clothes W are caught on the baffles 11, lifted, dropped, and washed, but normally they tend to shift toward the opening due to the slope of the circumferential wall 6 and tend to accumulate on the opening side. . (See Figure 3 A, mouth). Then, when falling, the clothing W on the opening side falls along and in contact with the inner surface 9 of the end plate 3, and eventually shifts toward the bottom surface, which spreads to other falling clothing (see Figure 3, C). . It is also scrubbed.

Therefore, the accumulation of clothes w on the opening side is prevented and the clothes w come loose. On the other hand, the upper and lower ribs 12'' 12■... will rub the clothes W while the drum is rotating. By the way, since the baffle 11... has a large opening angle θ on the bottom surface 4 side, it is difficult to hang the clothes W. Since the lifted clothes W are tried to fall quickly from the bottom side, the clothes W on the opening side are caused to fall in a chain manner, and the entire clothes can be prevented from shifting to the opening side.

Also, the clothing W on the opening 2 side may be pulled toward the bottom surface 4 and dropped. In this case, if ribs are provided on the bottom surface 4,
Clothes W falling from the bottom side can be rubbed. Furthermore, when the clothing W shifts from the bottom side to the opening side or from the opening side to the bottom side, it is also rubbed by the steps of the baffles 11.

In this way, the clothes W are prevented from accumulating on the opening side and are loosened, and are effectively washed and rubbed well, so that the washing effect is significantly improved.

Both rinsing and drying are performed within this rotating drum 1, and hot air during drying is drawn in through the openings in the bottom surface 4 or end plate 3, and is discharged through the through holes 7.

In this case, the end plate 3 and the bottom surface 4 can be reinforced by the ribs 10. In addition, in the embodiment of the present invention, the baffle 11...
The washing effect was improved by forming the . .・・・
can be formed at the same time as molding, eliminating the need for drilling or the like.

However, the baffle 11 does not necessarily have to be formed stepwise, and may be one in which the opening angle 0 changes steplessly. Further, the upper and lower ribs 12... are intended to improve the washing effect by scrubbing, and may be omitted if a sufficient effect can be obtained with other structures.

As described above, in the drum-type washing machine according to the present invention, the end plate is inclined toward the bottom side opposite to the opening, so that when clothes fall, they are directed toward the bottom side along the slope, preventing them from accumulating and loosening them. This improves the effectiveness of washing, rinsing, and drying, and reduces the time required for washing, rinsing, and drying. Furthermore, since the products are rubbed at the same time, the washing effect can be greatly improved.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a rotating drum of a drum-type washing machine according to the present invention, and FIG. 2 is a rear view as seen from the opening side with the end plate removed.
Figure 3 A, opening, and C are side sectional views explaining the movement of clothing during drum rotation; Figure 4 A, opening are sectional views and front views of the end plate;
5A, the opening is a sectional view and a front view of another embodiment, FIG. 6A, and A-A in FIG. It is a sectional view based on each line BB. 1...Rotating drum, 2...Opening, 3.
...End plate, 4...Bottom surface, 6...
Peripheral wall, W... Clothing, 9... End plate inner surface, 1
0...Rib, 11...Baffle.

Claims (1)

[Scope of Claims] 1. A washing machine in which the opening of a rotary drum molded in resin into a bottomed cylindrical shape is closed with an end plate, and the rotary drum is horizontally supported by the bottom surface and the end plate, A die-cutting slope is provided on the circumferential wall of the rotating drum that widens toward the opening, and a long chevron-shaped baffle is integrally formed in the axial direction on the inner surface of the circumferential wall, and the inner surface of the end plate is connected to the bottom surface. A drum-type washing machine characterized by being tilted so as to protrude to the side. 2. The drum type washing machine according to claim 1, characterized in that ribs are formed integrally and protrudingly on the inner surface of the end plate.