TW200840905A - Drum type washing machine - Google Patents

Abstract

A rotary drum formed into a bottomed tubular shape is installed in a water tank such that the axis of rotation is directed from the opening front side toward the back side becoming the bottom portion horizontally or inclined downward from the horizontal direction. A control section arc-rotates the rotary drum suddenly by driving a motor suddenly at such a variation rate that the laundry is stuck to the inner surface of the rotary drum by centrifugal force, thus lifting the laundry from the lowermost position, i.e. the 0 degree position, of the rotary drum to a position over 90 degrees and less than 180 degrees. Furthermore, rotation of the motor is braked suddenly at such a variation rate that the laundry falls off the inner surface of the rotary drum, thus dropping the laundry to the side opposite to the lifting side. The control section has a forward/reverse rotation drive mode for repeating a series of such forward and reverse operations alternately.

Description

200840905 IX. OBJECTS OF THE INVENTION: FIELD OF THE INVENTION The present invention relates to a rotary drum rotary drive that is disposed in a water (four) state in a state where the direction of the rotation axis is horizontal or inclined downward from the horizontal direction. The drum type washing machine that washes the strips in the drum.

C lltT invention background

Figure 7 is a cross-sectional view showing the construction of a conventional drum type washing machine. This washing machine includes a casing 31, a water tank 32, a rotating drum 34, a motor %, and a door %. The water tank 32 is suspended in the casing 31 in a suspended structure. The rotary drum 34 in which a plurality of holes 33 are formed is disposed in the water tank 32. The motor % rotationally drives the rotary drum. The door 36 is provided on the front side of the casing 31. By opening the door, the user can take out or put the laundry 15 from the rotary drum 34 through the front opening of the water tank 32 and the front opening of the rotary drum 34. 20 In the general cleaning mode, the user opens the door 36 and applies the laundry and detergent to the rotating drum 34 (10) to start. In this manner, water is supplied from the water supply unit to the water tank 32. In the supplied water, water of a quantity of f is also supplied to the rotary drum 34 via the hole 33'. When the rotary drum 34 is driven by the motor 35 at a predetermined rotational speed, the washing secret contained in the rotary drum 34 is hooked by the stirring projection % provided on the surface of the rotary drum 34, and is lifted up to the rotational direction. The laundry then falls from the appropriate height. In this way, it is dreamed of washing the laundry and reducing it. After this silking step, the dirty washing material is drained (4), and the water supply water is supplied to the service water supply, 5 200840905. When the rinsing step ends, the rotary drum 34 is rotated at a high speed to perform a dehydration step. These steps are automatically performed in accordance with a predetermined control program. The rotary drum 34 is disposed in a state in which the direction of the rotary shaft 34A is horizontal from the opening side toward the bottom side or inclined downward from the horizontal direction. When washing is performed by the thus-arranged 5 rotating drum 34, the user can easily take out or put in the laundry. However, when the rotary drum 34 is disposed in this manner, the laundry is sufficiently lifted and then dropped, and the effect of the rinsing is weak. In particular, since the rotating drum 34 is inclined, the laundry is concentrated at a position which is also low in the direction of the rotation axis, so that the washing effect is weaker. In order to solve such a problem, the following technique is disclosed in Japanese Patent Laid-Open Publication No. 2005-124764. That is, the laundry lifted by the rotation of the rotary drum 34 rotationally drives the rotary drum 34 for the first predetermined time at the first predetermined rotational speed at which the operation of dropping from the height position where the weight is dominant. Thereafter, the rotational driving of the rotary drum 34 is stopped at a predetermined time, and the position of the laundry to be concentrated at the lower 15 position is changed. Figs. 8A and 8B show the state of the laundry 61 in the rotary drum 34 of the washing machine disclosed in the above patent document. Fig. 8A shows the twisted state of the laundry 61 in the attached state after dehydration, and Fig. 8B shows the entangled state of the laundry 61 in the attached state after dehydration. In the washing machine disclosed in the above-mentioned patent document, by performing the above-described rotational driving in the forward and reverse directions, the twisted state and the entangled state of the laundry 61 can be suppressed to a certain extent. Thereby, the work when the laundry 61 is taken out can be slightly reduced. Further, when the diameter of the rotary drum 34 is 500 ± 50 mm, the first read rotation speed is 30 ± 5 rpm, and the effect of the plucking of the drop can be improved. This 6 200840905 is generally faster than the horizontal configuration of the rotating drum 34. Further, the first predetermined time is exemplified by 13 seconds, 4 minutes, and the like, and is continuously rotated from the relationship with the rotational speed. The technique of the above patent document makes the rotational speed of the rotary drum 34 higher than when the rotational speed of the rotary drum 34 is set. However, this method merely causes the lifted laundry 61 to naturally fall from its height position superior to the centrifugal force of the rotary drum 34. Therefore, depending on the type of the laundry 61, the lifting position is insufficient and the washing effect is insufficient.

Since the father performs continuous positive rotation and continuous reverse rotation, the laundry 61 is twisted or entangled in the continuous rotation for 10 revolutions. Even if there is a stop period between the positive rotation drive and the reverse rotation drive of the continuous rotation, the degree of enthalpy and enthalpy can be solved as shown in Fig. 8B, but the suppression of the twist is insufficient. If the laundry is to be taken out while the washing f is still attached to the inner surface of the rotary drum 34, it is necessary to take off in other directions and the work takes time. Furthermore, since the enemy of the laundry 61 is not solved by the king, the operation of eliminating wrinkles after washing is also time consuming. SUMMARY OF THE INVENTION Summary of the Invention 20 The function of the large towel * change 4 _, twist, twist occurs, improve the mechanical force = 'Twisted forest easy to produce the drum type wash includes the sink, rotating drum, motor' control: Inside: The front side of the mouth - Μ The bottom is the same shape. Tilt from the open to the downward direction in the direction of the rotation axis or from the horizontal direction. The control unit is in the water tank. The motor rotates to drive the rotating roller v to control the aforementioned motor, at least to perform the washing and rinsing 7 200840905 smuggling. Further, the control unit rapidly drives the motor by causing the washing agent to adhere to the inner surface of the front sacral rotating drum by centrifugal force, and the turret is rotated by a rapid arc to rotate the washing material from the aforementioned rotation. The 0 degree position of the lowermost position of the drum is raised to a position exceeding 90 degrees and less than 18 degrees. The control unit rapidly brakes the rotation of the motor to cause the laundry to fall off from the inner surface of the rotary drum, and falls to the side of the rotary drum opposite to the side on which the washing material is lifted. The control unit performs a forward-reverse rotation driving mode of the series of operations in at least a part of at least one of the washing step and the water-injecting step φ. 1〇 By performing this positive and negative arc rotation drive mode, the rapid arc rotation of the drum can be rotated to lift the laundry from the lowest position of the rotary drum to a maximum of 90 degrees and less than 180 degrees. The braking state is generated by the rapid braking in the final stage of lifting of the laundry. With this braking state, it is possible to surely perform the action of dropping the laundry from the inner surface of the rotary drum due to its inertia and its own weight, and at the same time, dropping to the side opposite to the lifted side of the lower portion of the rotary drum. • Due to the rapid arc rotation drive of the positive and negative interaction, the arc rotation drive can change the lifting position and the falling position of the laundry interactively from side to side, so that the washing can be prevented from interlacing and the laundry can be unwound at the same time. effect. Since the number of times the mechanical force can be transmitted to the laundry can be increased, the washing performance can be improved. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing the structure of a drum type washing machine in accordance with an embodiment of the present invention. Fig. 2 is a view showing the inside of the inside of the drum type washing machine shown in Fig. 1 200840905 Fig. 3 is a cross-sectional view showing the motor ampule of the drum type washing machine shown in Fig. 1 in a half. Fig. 4A is a view showing an example in which the drum type washing machine shown in Fig. 1 stops the washing of the inside of the roller. Fig. 4B is a view showing an example of a state in which the rotary drum is started from the state of Fig. 4A. Rotation

10 15

Fig. 4C is a diagram showing the state of the rotation speed from the state of Fig. 4B. Fig. 4D is a view showing an example of a state in which the rotating drum is accelerated in the direction in which the rotating drum is expanded from the state of Fig. 4C. Fig. 4 is a view showing an example of a state in which the rotational speed of the rotary drum is changed from the state of Fig. 4D. Fig. 4F is a view showing an example of a state in which the rotation of the rotary drum is accelerated in the direction from the state of the first side. (10) The figure shows an example of the change of the lifting position and the falling position of the laundry in the forward and reverse arc rotation modes shown in Figs. 4C to 4F. Fig. 5 is a view showing a rotational characteristic of the attachment and detachment of the laundry on the inner surface of the rotary drum in the forward and reverse arc rotation driving mode of the drum type washing machine shown in Fig. 1. Fig. 6A is a schematic view showing a state of the laundry after the spin-drying mode of the drum type washing machine shown in Fig. 1 is performed after the spin-drying step. Fig. 6B is a view showing another mode example of the laundry after the dehydration step is performed in the forward and reverse arc rotation mode of the drum type washing machine shown in Fig. 1 200840905 Fig. 7 is a view showing a conventional drum type washing machine A cross-sectional view of the main part of the structure. Fig. 8A is a schematic view showing an example of the state of the washing strip after the dehydrating step of the conventional drum type washing machine. Fig. 8B is a schematic view showing another example of the state of the laundry after the dehydration step of the conventional drum type washing machine. [Embodiment] BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a drum type washing machine according to an embodiment of the present invention will be described with reference to the drawings. Further, the following description is a specific example of the invention and is not intended to limit the invention. Fig. 1 is a cross-sectional view showing the structure of a drum type washing machine in accordance with an embodiment of the present invention. Fig. 2 is a front view showing the inside of the drum type washing machine shown in Fig. i. Fig. 3 is a cross-sectional view showing a half of a motor mounting portion of the drum type washing machine shown in Fig. 1. This washing machine includes a casing 1, a water tank 2, a rotary drum 4, a motor 5, and a door 6. The water tank 2 is supported in the casing 以 in a suspended structure. The bottomed cylindrical rotating drum 4 in which a plurality of holes 3 are formed is disposed in the water tank 2. The motor 5 is rotationally driven to rotate the 20-turn drum 4. The door 6 is provided on the front side of the casing 1. By opening the sill, the user can take out or put the laundry in the rotating drum 4 through the front opening of the water tank 2 and the front opening of the rotary drum 4. The user sets the mode from the operation unit 14. With this setting, the control unit 9 equipped with the microcomputer holding the control program executes various modes. 200840905 Sew In the normal washing mode, the user opens the door 6, and puts the laundry and the detergent into the rotating drum 4 to start the operation. In this manner, the control unit w wash water unit 7 supplies water into the water tank 2. In the supplied water, a required amount is supplied from the hole 3 to the rotary drum 4. ,

Next, the control unit 9 rotates the driving drum 4 by the motor 5 at a predetermined rotational speed. Thus, the laundry accommodated in the rotary drum 4 is hooked by the stirring projection 8 provided on the inner circumferential surface of the drum 4, and is lifted up to the rotation direction 2, and the laundry is dropped from an appropriate height. This is done by washing the knees with the effect of washing. After this washing step, the control unit 9 executes = water. The 卩11 discharges the dirty washing water, and further, the rinsing step of the new water supply by the water supply unit 7. When the rinsing step is ended, the (four) portion 9 performs a dehydrating step of rotating the rotary drum 4 at a high speed. The control unit 9 automatically executes the steps in accordance with a predetermined control program. In this manner, the control unit 9 controls at least the motor 5 to perform at least the washing step and the rinsing step. Further, the control unit 9 borrows the blower π to suck the two of the water tank 2 and the rotary drum 4. The dehumidifying portion 16 dehumidifies the sucked air. The heating unit 17 heats the dehumidified air. The ventilation path 13 connects the blower 12 to the water tank 2, the heating unit W, and the water tank 2, respectively. The control unit 9 sends the dried high-temperature air to the water tank 2 and the rotary drum 4 by the drying unit thus formed. In a drum type washing machine called such a drum type washing and drying machine, the drying step is also automatically performed after the dehydration step. In addition, the 'water supply unit 7 can switch the solenoid valve not shown in the figure. As shown by the solid line, the water supply is timely, and the water supply is used to timely put the detergent of the detergent storage unit not shown in the figure into the sink. 2 inside. The drain portion 11 is drained as indicated by the dotted line when the switch of the solenoid valve shown in Fig. 200840905 is not completed at the end of the washing step or the end of the flushing step. The air blower 12 is in the ventilation path 13 constituting the drying section, and the air in the water tank 2 and the rotary drum $ is circulated as shown by the broken line arrow # shown in Fig. 2 and Fig. 2 . A filter 15 for removing dust from the slag or the like in the introduced air from the water tank 2 or the rotary drum 4 is provided in the ventilation path 13. Therefore, the dehumidifying section "dehumidifies the introduced air after dust removal. The blower 12 is disposed under the heating section, and the crucible is less susceptible to moisture. In the drawing of Fig. 2, the dehumidifying section 16 and the heating section 17 are compressed. Each of the units 1 to 18 constitutes an evaporator and a condenser that circulates the refrigerant and exchanges heat with the circulating air. That is, the air conditioners 19 are configured. However, the dehumidifying unit "and the heating unit 17 are not limited thereto, and may be other structure. The rotary drum 4 is disposed on the rotary drum 4 in a state where the direction of the rotary shaft 4A of the rotary drum 4 is horizontally or inclined downward from the opening side toward the bottom side. In the example of Fig. 1, the rotary drum 4 directly connects the motor 5 on the water tank 2 to the rotating shaft 4A, and the rotation axis direction is inclined from the horizontal direction to the bottom side together with the water tank 2, and the angle of the rotation axis is inclined from the horizontal direction by 0 = 2 alumina 1 Set to increase the degree. When the washing is performed by the rotary drum 4 thus configured, even if the rotary drum 4 is provided at the same height as when the rotary shaft 4A is disposed in the horizontal direction, the open side 20 is inclined upward. Therefore, the user can easily take out or put in the laundry without bending over or taking a bare position. In particular, the angle of inclination is 20 ± 10 degrees, and even if there is a height difference from a child to an adult or a wheelchair user, it is also the easiest condition for taking out the laundry. Since the water supplied to the rotary drum 4 is retained on the back side, there is an advantage that the deep water storage state can be obtained in the water of 12 200840905. However, when the rotating drum 4 is set up, it will be lifted up and then washed down and the rinsing will be weak. In particular, the slanting rotary drum 4 tends to concentrate on the low position in the direction of the rotation axis, so that the washing effect is particularly weak. 5. In response to such a problem, in the present embodiment, the control unit 9-arc rotationally drives the pull type as the control for driving the rotary drum 4 by the motor 5. Here, the "arc (P ot)" is a rotation operation that is less than one rotation per day. Specifically, the "arc rotation drive pure type" towel, when the pure direction is lowered, the rotary drum 4 is rotated by a rapid arc to a position exceeding 90 degrees and less than 180 degrees, and 1 〇 is braked. In other words, the control unit 9 rapidly drives the motor 5 so that the washing material can be attached to the inner surface of the rotating roller by the centrifugal force, and the rotating drum 4 is rapidly arc-rotated. Then, the laundry is lifted from the twist position of the lowermost position of the rotary drum 4 to a position exceeding 90 degrees and less than 180 degrees. The control unit 9 rapidly brakes the rotation of the motor 5 by the rate of change of the degree of separation of the laundry from the rotary drum, and falls to the side of the rotary drum 4 opposite to the side on which the laundry is lifted. 4A to 4F are views showing the position of the laundry 20 in the rotary drum 4 in the arc rotation driving mode of the drum type washing machine shown in Fig. 1. In this mode, most of the laundry 2 is lifted to a position above 9 degrees and less than 180 degrees. Then, in the final stage of lifting the laundry 20, the rushing action is used to rotate the drum 4. When the rotary drum 4 is braked in this manner, the laundry 20 is detached from the inner surface of the rotary drum 4 by the inertia and its own weight acting on the laundry 2, and is surely dropped by its own weight. Therefore, it is possible to prevent the entanglement or twisting of the laundry 20 while improving the action of unwinding the laundry. 13 200840905 = Class force is reliably conveyed to (4) (4), so cleaning performance can be improved. And the interaction is reversed. (4) The rapid direction of the positive direction of the rotation mode - the forward and reverse arc rotation drive mode of the rapid reverse anti-saki turn in the reverse direction. 5 The rapid arc rotation (4) of each other can be used to change the washing position (4) 2G lifting position and falling position in each arc rotation drive. Therefore, the laundry 20 can be prevented from being entangled, and the action of unwinding the laundry can be improved, and the mechanical force can be transmitted to the number of times of washing 2G. As a result, the cleaning performance can be improved. ^ a Use Figure 4A to Figure 4F to illustrate the action of the arc rotation drive mode and the positive and negative arc 10 $ drive mode of the laundry. Fig. 4A to Fig. 4 are diagrams for illustrating the action of the actual knee washing device 20, and are not intended to limit the scope of the present invention. First, as shown in Fig. 4A, when the drum type washing machine is stopped, the laundry 20 in the rotary drum 4 is located on the lower side, that is, near the twist position. When the rotary drum 4 is rotated by a rapid arc (quick positive arc rotation drive) to a position exceeding the degree, • /J, at a position of 180 degrees, as shown in FIG. 4B, the laundry 20 is from a broken line position to a solid line position. The direction is raised to more than 9 degrees and less than 18 degrees. Then, as shown in Fig. 4C, when the rotary drum 4 is braked in the final stage of lifting the laundry 2, the laundry 20 is surely detached from the inner surface of the rotary drum 4 due to its inertia and its own weight. Next, the laundry 20 draws a parabola as indicated by an arrow from the line position to the solid line position by its own weight, and falls to the side opposite to the lifted side of the rotary drum 4. After braking in this way, the rotary drum 4 is driven in a reverse arc in the reverse direction (quickly reverse arc rotation drive) to a position exceeding 90 degrees, and less than a position of 14 200840905. As shown in FIG. 4D, the laundry 2 is from the dotted line position. To the solid line position, it is lifted in the opposite direction to a position exceeding 90 degrees and less than 180 degrees. Then, as shown in Fig. 4E, when the rotating drum 4 is braked in the final stage of lifting the laundry 2, the laundry 20 is surely detached from the inside of the rotary drum 4 due to its inertia and its own weight. Next, the laundry 20 draws a parabola as indicated by an arrow from the broken line position to the solid line position by its own weight, and falls to the side opposite to the lifted side of the rotary drum 4. Then, as shown in Fig. 4F, the rotating drum 4 is driven by the rapid positive arc rotation, and the movement described using Figs. 4C to 4E is repeated. 10 By this kind of positive and negative interaction, the rapid arc rotation drive, the lifting position and the falling position of the laundry 20 are driven in each arc rotation driving, as shown in Fig. 4, and the left and right are alternately changed. Therefore, the action of unwinding the laundry of the laundry 20 is enhanced, and the mechanical force is surely transmitted to the laundry. As described above, the control unit 9 alternately and alternately performs the arc rotation control rotary drum 154 to lift the laundry 20 to the left and right one side upper portions of the rotary drum 4. Then, φ is decelerated or even braked at the final time point in which the laundry 20 is lifted up, and the laundry 20 is forcibly removed by its inertia and its own weight, and the weight is dropped to the opposite side of the right and left. In this way, the forward and reverse reversal is repeated, and each time the arc is rotated, the lifting position of the laundry 20 and the lower position of the laundry 20 can be alternately changed. As a result, the unwinding action of the laundry 20 is enhanced to prevent entanglement or even twisting or attachment of the inner surface of the rotary drum 4. Therefore, the washing of the laundry 2 is easy, and the wrinkles of the laundry 20 can be greatly alleviated. Since the mechanical force can be transmitted to the laundry 20' and the number of drops of the laundry 20 having a tapping effect is large, and the steps of the washing machine-based washing machine can be realized. Before the lowest position of the drum 4 (the position of the door) reaches the vicinity of the position of 90 degrees, the rotary drum 4 is rotationally driven by the rapid acceleration arc attached to the inner surface of the rotary drum 4 by the laundry 2〇. When the laundry 2 is lifted from the lowermost position of the rotary drum 504, it is unable to follow the rotation of the rotary drum 4 near the 90-degree position, and is liable to fall due to its own weight. The control unit 9 causes the laundry 2 to be attached to the inside of the rotary drum 4 by the above-described driving control of the rapid acceleration. Therefore, the laundry 20 is lifted to a position exceeding 9 degrees without slipping, imparting inertia balanced with the rotational speed of the rotary drum 4, and is surely lifted up to a predetermined position. Then, the control unit 9 causes the laundry 2 to fall off due to the inertia of the laundry 20 at the time of the change of the braking state and its own weight, and falls to the side opposite to the lifting side due to the weight of the laundry 20. With this driving mode, the control unit 9 can more reliably achieve the left-right shift of the lifting position and the falling position of the laundry 2〇. Further, when the arc rotation direction of the rotary drum 4 is switched forward and backward, the sudden braking action is inserted at a position where the rotation of the drum 4 is more than 90 degrees and the position is less than 180 degrees. Thereby, in the rapid acceleration of the attachment of the laundry 2 “, in the final stage of the arc rotation of the laundry 20, the inertia of the laundry 2 确实 due to rapid deceleration and its own weight are surely detached, and fall to Lifting - the side opposite to the side of the 2nd side. Therefore, the loss of the endowment of the laundry 2 and the mechanical force can be suppressed. The effect of each step of the washing machine can be obtained in a shorter time, preventing the parent from wrapping or twisting. In the arc rotation driving type of the present embodiment, the control unit 9 rotates at a rapid arc of the rotary drum 4 by centrifugation 16 200840905 to make the laundry. 20 is attached to the inner surface of the rotary drum 4, and is lifted up to the top; the rapid braking of the 疋 衮 / 衮 4, so that the raised laundry 2 sheds from the inner surface of the rotary drum 4 with its inertia The positive and negative arc rotation driving mode of the embodiment can adopt the driving of the arc rotation driving mode 5 as a mode in which the positive and negative interactions are repeated. In the better positive and negative rotational driving mode, the control unit 9 Rotating roll The centrifugal force of the rapid arc rotation of 4 causes the laundry 20 to be attached to the inner surface of the rotary drum 4 and lifted up to the upper portion of the rotary turret 4. Thereafter, the rapid braking of the rotary drum 4# causes the laundry 20 to be inertially It is removed from the inner surface of the rotary drum 4, and is dropped to the side opposite to the lifted side of the lower portion of the rotary drum 4 due to its inertia and its own weight. This drive control is alternately reversed in the forward and reverse directions. For this reason, the positive arc rotation and the reverse arc rotation of the rotary drum 4 are repeated at positions less than 180 degrees, and it is preferably performed at positions exceeding 9 degrees. 15 Here, a rotary drum having a diameter of 500 soils and 50 faces is used. 4 Decompose the gravity of the washing material 2 into the center direction and the tangential direction of the rotating drum 4, and use the formula (丨) to calculate the drum rotating speed in which the force in the center direction and the centrifugal force are balanced. mrco2=mgcos0...... .••(1) ^ m : mass of washing material, π radius of rotation, ω: angular velocity, g ··gravity ^ 2〇 acceleration, 0 ·· The direction of rotation in which the vertical direction is 0 is shown in Fig. 5 to show the result. Figure 5: X-axis drum rotation angle The position indicates the angular position at which the lowest point when the rotary drum 4 is stopped is the reference point of the rotary drum 4, and the lowermost position of the rotary drum 4 where the reference point of the rotary drum 4 is located. The square pyramid indicates the reference point of the rotary drum 4. Each of the corners 17 is a rotational speed of the drum required to balance the force in the center direction with the centrifugal force in the position of 200840905. The dotted line and the solid arrow indicate the rotational speed of the rotary drum 4 at each angular position. From the time point 21 when the display is stopped, As indicated by the broken line, the rotary drum 45 reaches a rotational speed of about 45 rpm at the time point 22 at which the rapid arc is rotated. Since the solid arrow exceeds the cone at the time point 22, the laundry 2 〇 is surely attached to the rotary drum 4. Thus, The rotational angle position of the reference point of the rotary drum 4 is at the position of 9 degrees, and since the laundry 20 is surely attached to the rotary drum 4, the laundry 20 can be lifted by more than 90 degrees. In the above, the laundry is lifted by the attachment 10 to a position exceeding the 90 degree position of the rotary drum 4, which is less than 180 degrees, and in this case ' is near the 120 degree position shown at the time point 26. In the vicinity of this 120 degree position, the cone intersects the solid arrow, and the solid arrow is lower than the cone, so that the conditional laundry 20 cannot be attached to the rotary drum 4 and falls off. Therefore, at the time point 26 near the position of 120 degrees, the control unit 9 applies the operation for stopping the vicinity of the position of 140 degrees which is not at the time point μ 15 to the rotary drum 4. By this braking, the laundry 20 is detached from the inner surface of the rotary drum 4 by the rotational inertia acting on the laundry 2 and its own heavy denier. As can be seen from the above, the laundry can be detached from the rotary drum 4 at a relatively high speed of 45 rpm. Ν From this calculation and experience, the maximum rotation speed of the arc rotation of the positive and negative arc rotation drive mode should be above 40rPm. By performing the braking for dropping the laundry 20 at the maximum rotation speed, the falling of the laundry in the positive and negative arc rotation driving mode of the positive and negative arc rotation driving mode can be obtained, as shown in Fig. 5, which can be at 120 degrees. Braking is performed in the range of ~140 degrees. Specifically, when decelerating from the arc rotation at the maximum rotation speed of 45 rpm, by 18 200840905, the rotational inertia of the washing object 2 rpm and the weight thereof are continued, and the forced shedding force corresponding to the extinction speed is given to the laundry. 2〇. As shown in Fig. 5, the initial arc rotation of Figs. 4A to 4C is preferably performed between the twist position and the position near 140 degrees. The arc rotation after repeating the 4th to 5th views is preferably performed at a position near 14 degrees to a position near 30 degrees. Thereby, when the initial arc is rotated, as shown in Fig. 4A, the laundry 20 which is stationary in the lower portion of the rotary drum 4 is lifted up to a position near 120 degrees, and is braked between 120 degrees and 140 degrees. Thereby, the laundry 20 falls to the opposite side of the right and left sides of the rotary drum 4, specifically, the diameter 10 of the rotary drum* or below. In the subsequent arc rotation, the rotary drum 4 is driven in a range of 110 degrees from a position near 14 degrees to a vicinity of 30 degrees. That is, the laundry is moved toward the left and right of the rotating drum 4 as it is. Specifically, it is lifted from the lower end of the rotary drum 4 by about 30 degrees to the upper side of the same side of the rotary drum 4, specifically at a position of about 12 degrees, and dropped to the left and right of the rotary drum 4 15 The opposite side is about 30 degrees. This action is symmetrical and is achieved as the maximum drop distance of the diameter of the drum #馨t. Thereby, the unwinding and tapping effect of the wash strip 20 can be improved. In other words, the control unit 9 preferably performs the first arc rotation of the rotary drum 4 in the forward and reverse arc rotation drive mode between the twist position and the position of 12 degrees or more and less than 18 degrees. It is preferable to perform the subsequent arc rotation between the end position of the initial arc rotation and the position reversed by 110 degrees from the end position of the initial arc rotation. Therefore, when the first arc is rotated, it can be turned upside down on the rotation side of the rotation (4) 4 and the upper side of the rotation side of the arc. Then, the washing 2 () can be dropped to the opposite side of the left and right of the rotary drum 4. In the subsequent arc rotation, the object 20 of the rotating drum 4 is lifted up to the opposite side of the left and right of the rotary drum 4. The left side of the left side of the sin is washed down and the upper side of the same side, and falls to the rotating drum 4

Therefore, if the laundry 20 is to be moved to the left and right in a balanced manner, it is preferable to attach the cleaning object 20 attached to the inner surface of the rotary drum 4 before the falling, and to directly stop or reverse the rotation direction of the rotary drum 5 for the forward and reverse switching. turn. When this is done, the falling position of the laundry 20 can be moved from the lift of the arc rotation direction to the position on the opposite side of the left and right, and the rotation of the reverse arc is performed. Therefore, the lifting position and the falling position of the laundry 2 can be balanced and surely changed every right and left. As a result, the solution of the shampoo can be further improved. The mechanical force can be more efficiently conveyed to the washing service. Wash your knees like squats. Therefore, the brake is indispensable. This brake has mechanical braking and electric braking. There are many ways to brake the CLP, which has the advantage of not complicating the mechanism and requiring no maintenance. Further, when the maximum rotation speed of the arc rotation in the forward and reverse arc rotation mode is small 15 at the time of Pm, the rotation of the rotary drum 4 acts on the washing inertia and the rotation inertia, and the "2G cannot be detached from the inner surface of the rotary drum 4. That is, when the rotary drum 4 is reversed, the laundry 20 rotates together with the rotary drum 4 while still attached to the surface of the rotary drum. Therefore, the effect of the wash is not possible. When the angle of rotation 20 of the rotary drum 4 in which the arc of the forward and reverse arc rotation drive mode is rotated is 60 degrees or less, the laundry 20 cannot be lifted up to a position of 90 degrees or more. When the rotation angle of the rotary drum 4 is 150 degrees or more, the laundry 20 passes over the 180-degree position (uppermost portion) when the rotary drum 4 is reversed. Therefore, the action of interactively changing the laundry 20 as shown in Fig. 4G is not performed. It is necessary to realize the positive and negative arc rotation driving mode of the above rotating drum 4 to apply 20 200840905

The driving load of the two motors 5 is very large. Therefore, the original 0 which increases the size of the motor 5 is increased. In the present embodiment, as shown in the first and fourth figures, the inner rotor 51 is provided on the inner peripheral side of the stator fixed to the outer surface of the bottom of the water tank 2, and the outer rotor 52 is provided on the outer peripheral side. The inner rotor 5 and the outer rotor 52 are straight 5 = coupled to the rotating shaft 4A. In this manner, the inner rotor 5 and the outer rotor 52 interact with the stator 5A from the inner and outer circumferences. Therefore, the motor '%' power can be multiplied without increasing the size of the motor 5, and the motor 5 can realize the forward and reverse arc/rotation drive mode with rapid reversal. As a result, the forward and reverse arc rotation driving modes of the rapid reversal of the rotation characteristics of the right and left balance shown in Fig. 5 can be continuously performed. That is, in the positive arc rotation and the reverse arc rotation of the rotary drum 4, the laundry 2 can be dropped to the same position at a position of about 30 degrees from the side opposite to the rotation direction. After the arc is rotated from the time point of the fall to the position of the same rotation angle of 60 degrees, and after reaching the attachment area of the laundry 2〇, the washing 15 is washed by the rapid braking at the same rotation angle of 30 degrees. The rotary drum 4 is detached. Then, during braking, the drum 4 is rotated • the arc is rotated 20 degrees. The time required from the drop position shown at time point 24 to the drop position shown at time point 26 is about 0.8 seconds, and the time required from the drop position shown at time point 25 to the drop position shown at time point 23 It is about 8 seconds, and the two are equal. 20 A general washing machine performs a continuous rotation drive mode or a forward and reverse continuous rotation drive mode in a washing step or a rinsing step. In the forward/reverse continuous rotation driving mode, the rotation speed of the movement of the laundry 2 swelled by the rotation of the rotary drum 4 from the height at which its own weight is dominant is displayed, and the continuous rotation of the rotary drum 4 is alternately reversed. . It is preferable to replace part or all of the continuous rotation drive mode 21 200840905 or the positive and negative connection and the % rotation drive mode with the above-mentioned positive and negative_transition_mode. Thereby, the laundry can be repeatedly applied to the yarn (10) in a forward and reverse direction, and the unwinding action and the tapping action can be performed. “ As a result, only the washing time can be shortened, and the washing of the knees after dehydration is greatly improved or the twisting is greatly improved, and the user can easily take out the laundry 20, and

After the light is processed afterwards. The formation of wrinkles does not persist in the finished state, and the time to eliminate wrinkles. In addition, after the dehydration step, when the forward and reverse arc rotation drive mode is executed, 10 beats = the wrinkle effect is exerted, and the wrinkle less completed state can be obtained. The dehydration day m article 20 is not easily attached to the inner surface of the rotary drum 4 as shown in Fig. 6A and the detailed view. Washing «soft. Therefore, the user can easily take out the laundry 2G from the rotating roller (five). And it is easy to handle afterwards, and it does not need more flowers to eliminate wrinkles. 1 Field in the drying step after dehydration, the positive and negative arc rotation driving mode is 15%, which can further promote the wrinkle made by the tapping. In addition, the drive load of the positive and negative arc return drive mode is high. In contrast, 2 to perform the forward and reverse continuous __ mode instead of this, the mechanical load can be reduced. Therefore, in the washing step or the rinsing step in which the washing material 20 contains water and the driving load is increased, the supply mode is effective. In the two modes, two different actions of washing or washing in the 2 〇 washing are given. Specifically, the positive and negative arc rotation driving mode is given to the strong hand washing action, and the positive and negative continuous rotation driving mode is given to the uniform cleaning action of continuously washing the laundry in a large amount without unevenly cleaning. It is uneconomical to turn on the motor 5 too much. Therefore, when the drive of the motor 5 that drives the first motor drive instruction of the rotating drum 4 is turned over, the control unit 9 preferably controls the horse to rotate with the second motor drive command when the motor 5 is out of step. In this second motor drive instruction, the rotational speed is set so as not to exceed the upper limit load of the motor 5. By this control, even if the driving load is occasionally different, it is possible to ensure that the rotation characteristics of the rotary drum 4 for the lifting and falling of the laundry 2 can be obtained as set. At the same time, the upper limit of the power on is suppressed. Here, the rotational speed of the rotary drum 4 is monitored, and feedback control is sufficient. It is preferable to change the driving of the rotary drum 4 in accordance with the elapsed time or the amount of the laundry. Thereby, the driving load corresponding to the change in the washing condition during the washing or the amount of the laundry is different, and the rotating drum 4 is driven in a state most suitable for the laundry 20. The amount of the laundry 20 can be determined by various known detection methods. As described above, in the drum type washing machine of the present invention, by controlling the rotation of the rotary drum provided in the horizontal direction or the inclination, the entanglement or twisting of the laundry can be prevented, and the washing effect can be improved. It also prevents the washings from creating pleats. [Brief Description] Fig. 1 is a perspective view showing the structure of a drum type washing machine in accordance with an embodiment of the present invention. Fig. 2 is a view showing the back surface 20 of the inside of the drum type washing machine shown in Fig. 1. Fig. 3 is a cross-sectional view showing a half of a motor mounting portion of the drum type washing machine shown in Fig. 1. Fig. 4A shows a washing of the inside of the rotating drum when the drum type washing machine shown in Fig. 1 is stopped; an illustration of the article. 23 200840905 Fig. 4B is a view showing an example of a state in which the rotation of the rotary drum is started from the state of Fig. 4A. < Fig. 4C is a view showing an example of a state in which the rotational speed of the rotary drum is changed from the state of Fig. 4B. '5 Fig. 4D is an illustration showing a state in which the rotation of the rotary drum is accelerated in the reverse direction from the state of Fig. 4C. _ 4E is an illustration showing a state in which the rotation of the rotary drum is decelerated from the state of Fig. 40. Fig. 4F is a view showing an example of a state in which the rotation of the rotary drum is accelerated in the positive direction from the state of the first map. Fig. 4G is a view showing an example of the left and right replacement of the laundry in the forward and reverse arc rotation driving mode shown in Fig. 4C to the servant diagram. Fig. 5 is a view showing the rotational characteristics of the laundry adhering and falling off % of the inner surface of the rotary drum in the 15 positive and negative arc rotation driving mode of the drum type washing machine shown in Fig. 1. Fig. 6A is a schematic view showing an example of the state of the laundry after the dehydration step is performed in the forward and reverse arc rotation mode of the drum type washing machine shown in Fig. 1. - The first map shows a pattern of another state of the laundry after the dehydration step is performed in the forward and reverse arc rotation mode of the drum type washing machine shown in Fig. 1. Fig. 7 is a cross-sectional view showing the structure of a main part of a conventional drum type washing machine. Fig. 8A is a schematic view showing a state of the state after the dehydration step of the conventional drum type washing machine. Fig. 8B is a schematic view showing another example of the state of the laundry after the dehydration step of the conventional drum type washing machine. [Main component symbol description]

1...housing 17···heating unit 2...sink 18...compressor 3···hole 19...air blender 4...rotary drum 20···washing material 4A···rotating shaft 31... Housing 5...motor 32...sink 5A...stator 33···hole 6...door 34...rotary drum 7···water supply unit 35...motor 8...stirring protrusion 36···door 9.. Control unit 37...water supply unit 11··drain unit 38...stirring protrusion 41...drain unit 13...ship path 51...inner rotor 14...operation unit 52...outer rotor 15··.filter 61 ...washing material 16···dehumidifying part 25

Claims (1)

200840905 10 15 Lu 20 Patent application scope: Kind of drum type washing machine, including: sink; tumbling roller ' is formed with the bottom of the round mouth with the same shape of Chuancheng®, with the direction of the rotation axis from the front side of the opening toward the back side of the bottom The side is horizontally or tilted downwardly and is disposed in the front-washing county; in the financial tank, the internal storage motor is used to rotate the aforementioned rotating drum and the small control # in the step of washing the knees and In the at least one part of the rinsing step, the front and back are alternately performed in a continuous manner: the forward and reverse arc rotation driving modes, and the series-series operation causes the laundry to be attached to the inner surface of the rotating drum with a heart force The variability will rapidly drive the aforementioned ride, and the above-mentioned rotating material will be rapidly arbitrarily 'to lift the laundry from the 0 position 2 of the lowermost position of the rotating drum to the position exceeding 90 degrees and less than the degree, and The washing of the two materials can rapidly brake the rotation of the motor from the rotation rate of the rotating drum, so that the washing is dropped to the rotating drum and the washing is lifted The side opposite to the side. 2. If you apply for a patent range! In the drum type washing machine of the present invention, the control unit causes the maximum rotation speed of the rotary drum when the forward and reverse arc rotation driving modes are rotated in the forward and reverse arc directions to be 4 rpm or more. 3. The drum type washing machine of claim 1, wherein the control 26 200840905 is driven by a second motor that does not exceed the upper limit load of the motor when the motor is out of step limit according to the first motor drive instruction. Instructed to drive the aforementioned motor. 4. The drum-type washing machine of claim 1, wherein the control 5 is used to switch the rotation direction of the rotary drum forward or backward before or after the washing of the inner surface of the rotary drum is dropped. Reverse. 5. The drum type washing machine according to claim 1, wherein the control unit performs the rotating drum between 0 degrees and 120 degrees and less than 180 degrees at the start of the forward and reverse arc rotation driving mode. The first orphan rotation, and then the orphan rotation is performed between 110 degrees from the end position of the first orphan rotation. 27