JPH0245091A - Drum type washing machine - Google Patents

Abstract

PURPOSE:To effectively operate a cleanser to laundry when the water feeding of washing water is executed, to execute the eliminating and removing of bubbles when the water feeding of rinsing water is executed and to reduce a load to a drum driving motor at the time of rinsing operation by providing a water feeding port, which is positioned in the upper direction of a laundry putting-in and out port provided on the surrounding wall of a rotating drum, in the laundry putting-in and out port provided in the upper part of an outer tank. CONSTITUTION:A water feeding port 3 is opened in one side of a laundry putting-in and out port of an outer tank 1 and a guide 7 which is protruding from the lower surface of the water feeding port 3 to the laundry putting-in and out port, is fixed to a side wall of the laundry putting-in and out port 4. The water feeding port 3 is connected through a water feeding mechanism provided in a casing 8, in which the outer tank 1 is received, to the tap of water service. In a condition that a drum door 6 is opened, since the washing water to include the cleanser can be directly fed from the water feeding port, which is provided in the laundry putting-in and out port of the outer tank, into the rotating drum 2, the cleanser is not stagnated in the bottom part of the outer tank but kept in the rotating drum. Then, washing is executed. Further, at the time of rinsing, the rinsing water is fed from the water feeding port in a condition that the drum door is closed. The rinsing water flows down from the above of the rotating drum along the outer periphery of the drum. Then, the bubbles between the outer tank and rotating drum can be speedily eliminated and removed.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a drum-type washing machine in which a rotating drum having an opening for loading and unloading laundry on the peripheral wall is housed in an outer tub.

[Conventional technology]

Conventionally, there are two types of drum-type washing machines: the one shown in Figure 5 and the one shown in Figure 6.
There was something shown in the figure. In FIGS. 5 and 6, 1 is an outer tank that is flexibly supported within a casing (not shown), 2 is a rotating drum that is rotatably supported and housed in the outer tank 1, and the peripheral wall of the rotating drum 2 is A large number of small holes (not shown) are formed in 2a. 3 is one end wall 1 of the outer tank 1.
Washing water and rinsing water are supplied from this water supply port 3 into the outer tank 1 after passing between the outer tank 1 and the rotating drum 2, passing through small holes in the peripheral wall 2a, and flowing into the rotating drum. 2 and is configured to be guided from its lower part. The drum-type washing machine shown in FIG. 5 has laundry loading/unloading ports 4 and 5 formed in the front end wall of the outer tub 1 and the cantilever type rotating drum 2, respectively.
It is equipped with an outer tank area and a drum door (not shown) that can be opened and closed. Further, in the drum-type washing machine shown in FIG. 6, laundry loading/unloading ports 4 and 5 are formed at the upper part of the outer tub 1 and at the circumference 92a of the double-supported rotating drum 2, respectively. Outer tank door that opens and closes (not shown) Drum door 6
is equipped. Then, when the rotating drum 2 is stopped, the drum door 6 detects its position and opens the laundry loading/unloading port 4.
The rotary drum 2 is automatically stopped at the position where the drums 5 face each other, and the drum door 6 is slid at the stop position to perform rjllM.

[Problem to be solved by the invention]

Conventional drum-type washing machines are constructed as described above, and water is supplied by passing it between the outer tub 1 and the rotating drum 2. Therefore, when washing water is supplied, the detergent contained in the water is transferred to the outer tub 1. It accumulates at the bottom of the outer tub 1 and the rotating drum 2, and does not work effectively on the laundry put in the outer tub 1 and the rotating drum 2.
If the drum is full of foam, the rinsing water will not be able to sufficiently eliminate and remove the foam. Therefore, during the rinsing operation of the rotary drum 2, the viscous resistance due to the foam will be large, especially at the beginning (and a large load will be placed on the drum drive motor). Further, in drum-type washing machines in which the laundry loading/unloading port 5 is provided on the peripheral wall 2a of the rotating drum 2, the laundry loaded into the rotating drum 2 is often seen through the loading/unloading opening 5. In case, drum door 6
There is a problem in that laundry gets caught between the door 6 and the peripheral wall 2a of the rotating drum 2 when the door 6 is closed. This invention was made in order to solve the above-mentioned problems, and when washing water is supplied, the detergent can be effectively applied to the laundry without accumulating at the bottom of the outer tub, and the rinsing water can be Foam can be sufficiently defoamed and removed when water is supplied, and the load on the drum drive motor during rinsing operation can be reduced.Furthermore, the appearance of the laundry placed in the rotating drum is improved by supplying washing water. To provide a drum-type washing machine that can reduce the volume and prevent laundry from being caught between a drum door and a rotating drum peripheral wall.

[Means to solve the problem] The drum-type washing machine according to the present invention is provided with a water supply port located above the laundry loading/unloading port provided on the peripheral wall of the rotating drum at the laundry loading/unloading port provided on the upper part of the outer tub. [For production]

The drum-type washing machine according to the present invention can supply washing water containing detergent directly into the rotating drum from the water supply port provided at the laundry loading/unloading port of the outer tub with the drum door open. The detergent does not accumulate at the bottom of the outer tank (it can be washed inside the rotating drum),
In addition, washing water is passed from above through the laundry placed in the rotating drum to reduce the volume above the laundry, and in a concave state with the laundry, rinsing water is supplied from the water inlet to the upper part of the rotating drum. By transmitting the foam to the outer periphery and flowing down, the foam between the outer tank and the rotating drum can be quickly defoamed and removed.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. In Figures 1 and 2, 1 is an outer tank, 2 is a rotating drum,
4 and 5 are laundry loading/unloading ports, and 6 is a drum door, which are constructed in the same manner as the conventional drum-type washing machine shown in FIG. In this embodiment, the water inlet 3 is opened on one side of the laundry inlet/outlet 4 of the outer tub 1, and the guide 7 protruding from the lower surface of the water inlet 3 to the laundry inlet/outlet 4 is connected to the side wall 4a of the laundry inlet/outlet 4. Fixed. Further, the water supply port 3 is connected to a water faucet (both not shown) via a water supply mechanism provided in a casing 8 in which the outer tank 1 is housed, as in the conventional case. Next, the operation of this embodiment will be explained. As shown in FIG. 1, the laundry loading/unloading port 5 stops at a position facing the laundry loading/unloading port 4 of the outer tub 1, and the drum door 6 is opened at the outer tub door (
The laundry 9 is put into the rotating drum 2 through the laundry loading/unloading ports 4 and 5 while the laundry openings 4 and 5 are opened. Next, the water supply mechanism passes the tap water through a detergent box (not shown) provided in the water supply mechanism, dissolves the detergent in this box and uses it as washing water. Water is directly supplied into the rotating drum 2 through the ports 4 and 5. Then, a predetermined amount of washing water is stored in the outer PIJl and in the rotary drum 2 through the laundry 9 in the rotary drum 2 and the small holes 2b provided in the peripheral wall 2a of the rotary drum 2 through the laundry 9 and between these, and the water is supplied. Stop. By supplying washing water as described above, even if the washing water contains detergent that is not sufficiently dissolved, the detergent will adhere to the laundry. Unlike those that supply water, the detergent does not accumulate at the bottom of the outer tank 1 and is contained within the rotating drum 2. In addition, since the washing water passes through the laundry 9 in the rotating drum 2 from above, the laundry 9 gets wet, and as shown in FIG. 2, the apparent volume of the laundry 9 at the top decreases. As shown in FIG. 1, the laundry 9 was filled in the rotary drum 2, but a gap has formed between the upper part of the laundry 9 and the laundry loading/unloading port 5 of the rotary drum 2. The drum door 6 is smoothly closed without being obstructed by the laundry 9, and the laundry 9 is not caught between the drum door 6 and the peripheral wall 2a of the rotating drum 2. Next, by closing the outer tank door and rotating the rotary drum 2 with the laundry loading and unloading ports 4 and 5 of the outer tank 12 and the rotating drum 2 closed, the washing water stored in the outer tank 1 is used to wash the clothes. conduct. As described above, this washing is performed with the detergent attached to the laundry 9 and not accumulated at the bottom of the outer tub 1, so that the detergent can be effectively applied to the laundry, resulting in efficient washing. Can be done. After washing is finished, drain the washing water from the outer tub 1 and the rotating drum 2, and then use rinsing water such as tap water that does not contain detergent.
A water supply mechanism supplies water into the outer tub 1 from the water supply port 3 through the guide 7 and the laundry loading/unloading opening 4 of the outer tub 1. When supplying rinsing water, see Figure 3. As shown in FIG. 4, by rinsing with the drum door 6 closed, the rinsing water flows from above the rotating drum 2 to its peripheral wall.
By flowing down through a, even if the outer tub 1 and the rotating drum 2 are filled with bubbles 10, the rinsing water takes in the bubbles 10 between the outer tub 1 and the rotating drum 2 and moves downward. bubble 1
Since the bubbles 10 are crushed, the bubbles 10 are quickly defoamed and the bubbles 10 are sufficiently removed. In addition, a portion of the rinsing water enters the rotating drum 2 through a large number of small holes 2b provided in the peripheral wall 2n of the rotating drum 2, and is useful for removing small bubbles 10 in the rotating drum 2. Therefore, when rinsing, the viscous resistance due to the foam is small, so
A drum that rotates rotating drum 2! The load on the IJK dynamic motor is reduced from the initial stage of the rinsing operation compared to the above-mentioned conventional motor. Note that after rinsing, a dehydration operation is performed in the same manner as in the conventional system. Further, after dehydration, hot air may be blown into the rotating drum to perform dehydration operation. [Effects of the Invention] As explained above, according to the invention of B, the drum door for opening and closing the laundry loading/unloading port provided on the peripheral wall of the rotating drum,
In a drum-type washing machine that detects the position of the rotating drum and is configured to open and close at the position where the laundry loading/unloading port provided at the top of the outer tub and the laundry loading/unloading port of the rotating drum face each other. A water supply port is provided at the loading/unloading port, so when washing the drum, with the drum door open, washing water containing detergent can be directly supplied from the water supply port into the rotating drum. The washing water is placed inside the rotating drum without accumulating in the rotating drum, allowing the detergent to effectively act on the laundry for efficient washing. When the laundry gets wet, these apparent particles reduce the volume above and prevent the laundry from being caught between the drum door and the peripheral wall of the rotating drum. By supplying rinsing water from the water supply port and letting it flow down the outer circumference from above the rotating drum, the foam between the outer tank and the rotating drum can be rapidly defoamed and removed. Therefore, it is possible to reduce the load on the drum drive motor that rotates the rotary drum during rinsing.

[Brief explanation of the drawing]

1 and 2 are schematic front cross-sectional views of a drum-type washing machine according to an MB example of the present invention, before and after washing water is supplied, and FIG. 3 is a front cross-sectional view of the main parts during the rinsing water supply. 4 is a partially enlarged view of FIG. 3, and FIGS. 5 and 6 are schematic side sectional views showing different conventional ram-type washing machines.

Claims (1)

[Claims] an outer tank having a laundry loading/unloading port on the upper part; a rotating drum having a laundry loading/unloading port on the peripheral wall and housed in the outer tank;
The rotating drum is equipped with a drum door that opens and closes the laundry loading/unloading port provided on the rotating drum, and the drum door is installed at a position where the laundry loading/unloading port of the outer tub and the laundry loading/unloading port of the rotating drum are opposed to each other by detecting the position of the rotating drum. In the drum type washing machine in which the drum door is opened and closed, the drum type washing machine is characterized in that a water supply port located above the laundry loading/unloading port of the rotating drum is provided at the laundry loading/unloading port of the outer tub.