JP7285393B2 - drum washing machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a drum-type washing machine having a baffle for agitating laundry accommodated in the drum.

Conventionally, this type of drum-type washing machine has a drum that is horizontally rotatably supported to accommodate laundry and a receiving tube that surrounds the outside of the drum. By rotating the drum with a predetermined amount of water stored in the receptacle, the laundry in the drum is lifted by a substantially mountain-shaped baffle provided on the inner peripheral surface of the drum, and is directed from a certain height toward the water surface. Let it fall naturally and wash repeatedly. For example, by forming a concave surface recessed toward the inner peripheral surface of the drum on the top of the baffle, improvement in washing performance is achieved by improving the mechanical force (see, for example, Patent Document 1).

JP 2009-22688 A

However, in the above-described conventional configuration, in addition to the beating washing, which is the original washing method of the drum-type washing machine, rubbing washing is also performed by rubbing against the uneven surface, and the mechanical force increases and the washing performance improves, but especially wool etc. In the case of delicate clothing, there is a problem that the clothing is easily damaged.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems, and to provide a drum-type washing machine that improves washing performance while suppressing damage to the laundry by improving the shape of the baffle for agitating the laundry. purpose.

In order to achieve the above objects, the drum type washing machine of the present invention comprises a main body, a receptacle provided in the main body, and supported inside the receptacle so as to be freely rotatable in a substantially horizontal direction. and a baffle for agitating the laundry provided on the inner peripheral surface of the drum, wherein the baffle is formed in a substantially trapezoidal cross section, one side A plurality of water passage holes communicating with the internal space of the baffle are formed in the portion of the baffle, and unevenness is not formed in the other side portion. In the washing step of rotating, when washing delicate clothes, the agitation ratio of the rotation of the drum in which the one side faces lead is set higher than the rotation of the drum in which the other side faces lead. It washes and agitates.

As a result, it is possible to wash with a washing method suitable for the laundry depending on the type of the laundry.

ADVANTAGE OF THE INVENTION The drum-type washing machine of this invention can improve washing|cleaning performance, suppressing damage to the laundry by improvement in mechanical force.

Side sectional view of drum-type washing machine according to Embodiment 1 of the present invention Block circuit diagram of the drum-type washing machine The perspective view showing the left side of the baffle of the drum-type washing machine. The perspective view showing the right side of the baffle of the same drum-type washing machine. Front view of the drum and baffle of the drum-type washing machine Flowchart showing the operation of the drum-type washing machine

A first invention comprises a main body, a receptacle provided in the main body, a drum supported in the receptacle so as to be rotatable in a substantially horizontal direction and containing laundry, and an inner peripheral surface of the drum. In a drum-type washing machine provided with a baffle for agitating laundry, the baffle is formed to have a substantially trapezoidal cross section, and one side portion has a plurality of baffles communicating with the internal space of the baffle. A water passage hole is formed and no unevenness is formed, and unevenness is formed on the other side surface. The washing and agitation are performed by setting the stirring ratio of the rotation of the drum in which the one side portion leads in the direction higher than that of the rotation of the drum in which the other side portion leads in the direction .

Thereby, according to the kind of laundry, the improvement of washing performance can be implement|achieved, suppressing the damage to the laundry.

A second invention is particularly characterized in that, in the baffle of the first invention, a plurality of water passage holes communicating with the internal space of the baffle are formed in the upper surface portion, and the other side surface portion is formed in the internal space of the baffle. It does not have a communicating water hole .

As a result, it is possible to improve the cleaning performance while suppressing damage to the laundry .

In a third aspect of the invention, particularly in the first or second aspect, when washing non-delicate clothes, the rotation of the drum with the other side facing forward is set at a high agitation rate. It is used for washing and stirring.

Thereby, washing performance can be improved according to the kind of laundry.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the present invention is not limited by this embodiment.

(Embodiment 1)
1 is a longitudinal sectional view of a drum-type washing machine according to Embodiment 1 of the present invention, FIG. 2 is a block circuit diagram of the drum-type washing machine, and FIG. 3 is a left side view of the baffle of the drum-type washing machine. 4 is a perspective view showing the right side of the baffle of the drum-type washing machine, and FIG. 5 is a front view of the drum and baffle of the drum-type washing machine.

In FIGS. 1 and 2, a main body 1 internally supports a receiving tube 4 with a damper 2 and a suspension 3 for horizontal vibration isolation. The receptacle tube 4 internally supports a drum 5 for storing laundry so as to be rotatable in a substantially horizontal direction. The drum 5 is fixed to a rotating shaft 8 rotatably supported at the center of the receiving cylinder 4 , and a drum pulley 9 is fixed to the other end of the rotating shaft 8 . A motor is attached to the bottom of the receiving tube 4 , and a motor pulley 11 and a drum pulley 9 of the motor 10 are connected by a belt 12 , and the power of the motor 10 is transmitted to the drum 5 to rotate the drum 5 .

The drum 5 has a large number of dehydration holes 6 on its side surface, and has a plurality of baffles 7 having a substantially trapezoidal cross section for agitating the laundry on its inner peripheral surface at regular intervals. In this embodiment, three baffles 7 are formed.

As shown in FIGS. 3, 4, and 5, the baffle 7 has an uneven surface 21 on its right side surface when viewed from the front. A plurality of side water passage holes 22 and a plurality of top surface water passage holes 23 communicating with the internal space of the baffle 7 are formed in the left side surface portion and the upper surface portion, respectively.

A clothes input port 25 is provided on the front surface of the main body 1, and the clothes input port 25 is openably and closably covered with a lid body 24. By opening the lid body 24, the laundry is put in and out of the drum 5 through the clothing input port 25.例文帳に追加

A detergent input container 13 containing detergent and a water supply valve 14 are disposed above the receiving tube 4 , and the detergent input container 13 and the water supply valve 14 are connected by a water supply path 15 . The water supply valve 14 sends water from the outside of the main body 1 to the detergent input container 13 through the water supply path 15. is sent to the receiving cylinder 4 and the drum 5 through the water injection hose 16 connecting the .

A drainage pump 17 is arranged at the bottom of the receiving tube 4, and the drainage pump 17 is connected to the bottom surface of the receiving tube 4 by a drain hose 18. drained to

An operation display unit 30 is provided on the upper front surface of the main body 1 for the user to select a driving course. Display and inform the user.

The water level detection means 35 detects the water level of the washing water inside the receiving tube 4 .

The laundry amount detection means 33 detects the load torque applied to the motor 10 as an input current when the motor 10 is rotated for a certain period of time with the dry laundry placed in the drum 5, and detects the load torque in the drum 5 based on the load torque. Determine the capacity of the laundry put into the .

The cloth quality detection means 34 detects the cloth quality based on the water supply flow rate detected by the water supply flow rate detection means 36, the amount of cloth detected by the cloth amount detection means 33, and the water supply time to the water level corresponding to the amount of cloth.

When the operation contents are set on the operation display unit 30, the control unit 20 inputs data from the water level detection unit 35, the cloth amount detection unit 33, the water supply flow rate detection unit 36, etc., and controls the motor 10, the water supply valve 14, By controlling the drain pump 17 and the like, each process such as washing, rinsing, dehydration, etc. is executed sequentially.

In addition, the control means 20 measures the elapsed time from an arbitrary time by controlling the timer means 37 .

The operation and effect of the drum-type washing machine constructed as above will be described.

FIG. 6 is a flow chart showing the operation of the drum-type washing machine according to the first embodiment of the present invention.

After opening the lid 24 and loading the laundry into the drum 5 from the laundry loading port 25 (step S1), the power switch (not shown) is turned on by the input setting means 31 of the operation display section 30, and the start switch is turned on. (not shown) is operated to start the operation (step S2), the drum 5 rotates for a short period of time and the amount of dry laundry is detected by the laundry amount detection means 33 (step S3), The detected amount of cloth is input to the control means 20 .

When the amount of laundry is detected, the water level and detergent amount corresponding to the amount of laundry are displayed on the display means 32 (step S4).

Then, the water supply valve 14 is operated to start supplying water, and water is supplied into the receiving tube 4 together with the detergent introduced into the detergent supply container 13, and the water supply flow rate detection means 36 detects the water supply flow rate (step S5). , the timing of the water supply time by the timing means 37 is started.

Then, the quality of the cloth is detected based on the amount of cloth, the water supply flow rate, and the water supply time information until reaching the water level corresponding to the cloth amount (step S7). In other words, it is detected whether there are many common cottons or delicate clothes such as wool.

In the washing process, when viewed from the front, the drum 5 is alternately rotated clockwise and counterclockwise to rotate and wash the laundry. If No), a large stirring ratio is set when the drum 5 rotates counterclockwise (step S9). ) to perform the washing and stirring process (step S11).

In the washing process, the lifted laundry is lifted to a certain height, and when the lifted laundry reaches a certain height, it drops toward the water surface below the drum 5. - 特許庁The laundry is beat-washed by being hit against the surface of the water, and dirt on the laundry is removed.

In the washing process, when the drum 5 rotates to the left in a front view, the laundry is lifted by being hooked on the uneven surface 21 when the laundry is lifted upward, and the lifted laundry is dropped by the baffle 7. It rubs against the uneven surface 21 and then falls.

Further, when the drum 5 rotates to the right in a front view, the laundry is lifted by the left side portion provided with the side water passage hole 22, and the drum 5 is rotated while the washing water in the drum 5 is taken into the baffle 7. - 特許庁When the laundry is dropped and the baffle 7 rotates above the drum 5, the washing water taken into the baffle 7 is discharged below the drum 5 from the side water passage hole 22 and splashed on the dropped laundry.

In the washing process, when it is judged that there are many common cottons in the cloth quality judgment (No in step S8), and a large stirring ratio is set when the drum 5 rotates counterclockwise (step S9), the baffle 7 The uneven surface 21 of the laundry is rubbed more frequently, and the mechanical force is further improved, so that the dirt can be removed by increasing the mechanical force.

In the fabric quality determination, when it is determined that there are many delicate clothes (Yes in step S8) and the stirring ratio when the drum 5 is rotated clockwise is set high (step S10), the side water passage hole 22 is formed. The ratio of lifting the laundry on the surface increases. Therefore, the drum 5 rotates while taking the washing water in the drum 5 into the baffle 7, and when the baffle 7 rotates above the drum 5, the washing water contained in the baffle 7 is discharged from the upper surface water passage hole 23. It discharges to the drum 5 lower part, and the ratio which hangs on the laundry which fell is increased.

As a result, the circulation of the washing water in the drum 5 is increased, and the amount of the washing water splashed on the portion of the laundry above the water surface is increased. Therefore, dirt can be washed off more easily, and the rate of stirring on the uneven surface 21 side is reduced, so that washing can be performed with less mechanical force, and damage to the laundry can be suppressed and washed gently.

After the washing process (step S11) is completed, the process proceeds to the next process.

In addition, the side surface of the baffle 7 having the uneven surface 21 and the side water passage hole 22 is not limited to the present embodiment, and may be provided in the opposite direction. direction is reversed.

As described above, in the present embodiment, the baffle 7 has an uneven surface 21 on the right side surface, a plurality of side water passage holes 22 on the left side surface, and a plurality of upper surface passage holes on the upper surface. By forming the water holes 23, it is possible to greatly improve the washing performance, or to improve the washing performance while suppressing damage to the laundry, depending on the type of laundry.

Further, in the washing process, by setting the ratio of the left and right rotation time of the drum 5 according to the cloth quality of the laundry detected by the cloth quality detection means 34, the washing can be performed according to the type of laundry. It is possible to greatly enhance performance, or improve washing performance while suppressing damage to laundry.

INDUSTRIAL APPLICABILITY As described above, the drum-type washing machine according to the present invention greatly enhances washing performance or reduces damage to laundry depending on the type of laundry by optimizing the shape of the baffle and controlling the rotation of the drum. Since it is possible to improve the cleaning performance while suppressing it, it can be applied to other uses such as washing machines.

REFERENCE SIGNS LIST 1 main body 4 receiver tube 5 drum 7 baffle 10 motor 14 water supply valve 20 control means 21 uneven surface 22 side water passage hole 23 upper surface water passage hole 33 cloth amount detection means 34 fabric quality detection means 35 water level detection means 36 water flow rate detection means 37 timekeeping means

Claims (3)

a main body, a receptacle provided in the main body, a drum supported in the receptacle so as to be rotatable in a substantially horizontal direction and containing the laundry, and the laundry provided on the inner peripheral surface of the drum. In the drum-type washing machine provided with a baffle for agitating the baffle, the baffle is formed in a substantially trapezoidal cross section, and a plurality of water flow holes communicating with the internal space of the baffle are formed in one side portion. and unevenness is not formed at the same time, and unevenness is formed on the other side surface,
In the washing process in which the drum is alternately rotated clockwise and counterclockwise, when washing delicate clothes, the agitation ratio of the rotation of the drum in which the one side portion leads the other side portion leads the other side portion. A drum -type washing machine that performs washing and agitation by setting the number of rotations of the drum to be larger than that of the drum in the direction of washing . 2. The baffle is formed with a plurality of water passage holes communicating with the internal space of the baffle on the upper surface thereof, and no water passage holes communicating with the internal space of the baffle are formed on the other side surface portion of the baffle. The drum-type washing machine described in . 3. The drum-type washing machine according to claim 1 or 2, wherein, when washing non-delicate clothes, washing and agitation are performed by setting a high agitation ratio of rotation of the drum in which the other side portion is directed. .

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