WO2007108311A1

WO2007108311A1 - Washing machine

Info

Publication number: WO2007108311A1
Application number: PCT/JP2007/054244
Authority: WO
Inventors: Naho Misumi; Masaji Kukino; Masahiro Yamazaki; Hiroya Hara; Hiroshi Ando; Hiroshige Konishi; Masashi Osada; Norihiko Ishikawa; Kazuhiro Iwase
Original assignee: Mitsubishi Electric Corporation; Nihon Kentetsu Co., Ltd.
Priority date: 2006-03-17
Filing date: 2007-03-06
Publication date: 2007-09-27
Also published as: KR20080066745A; JP4647561B2; TW200745404A; JP2007275544A

Abstract

A washing machine which ensures good cleaning performance and drying performance, prevents the rotational unbalance of a washing tank during drying, and is easy to use. The washing machine comprises a housing (1), a washing tank disposed in a water tank (2), an inclining means for inclining the washing tank with an inclining supporting point (20a) as a supporting point, and a control means, the inclining angle of the washing tank being able to be changed according to the steps of charging clothes through taking out washed and dehydrated clothes. For example, a mechanism is provided that allows the clothes to be washed with the washing tank inclined, to be dehydrated with the washing tank erected, and to be taken out with the washing tank inclined. In addition, the volume of charged clothes is detected, and, based on the result of the detection, an inclination angle during a washing step is determined or a washing step is carried out in an erected state. Further, an inclination angle is changed during a washing step for stepwise inclining or for continuous reciprocating inclining.

Description

Specification

Washing machine

Technical field

[0001] The present invention relates to a washing machine, and more particularly to a pulsator type washing machine.

Background art

In general, washing machines are roughly classified into a pulsator type and a drum type. The Norsator method rotates a pulsator placed in the washing tub and generates a "circulating water stream" by the rotation, and removes dirt by mechanical action such as friction or vibration and chemical action by detergent. In order to dehydrate the washed clothes, the washing tub (where the pulsator is placed) is rotated and centrifugal force is used. Furthermore, the dried clothes are dried by rotating the pulsator or the washing tub itself while blowing warm air into the washing tub.

The drum type, on the other hand, rotates a drum (corresponding to a washing tub) with a horizontal axis of rotation and utilizes the mechanical action and the chemical action of the detergent when the laundry falls in the drum due to the rotation. In order to dehydrate the washed clothes, the drum is rotated and the centrifugal force is used. Furthermore, the clothes after drying are dried by rotating the drum while blowing hot air into the drum.

[0003] Naturally, the washing machine has improved cleaning performance for removing dirt adhering to clothing, that is, an improvement in average "cleaning performance for removing dirt" and reduction of "variation in dirt removal". Demands to improve the drying performance of clothing, that is, “acceleration of drying” and “reduction of power consumption” while preventing “uneven drying of clothing” and “preventing thermal damage”. The

[0004] However, the conventional pulsator-type washing tub has a rotating shaft perpendicular to the bottom surface (vertical direction) and a rotating surface parallel to the bottom surface (horizontal direction), and the pulsator (or the washing tub itself) Is cleaning while rotating forward or backward. For this reason, the water flow generated by the pulsator is concentrated in the center, so that the fabrics get tangled, and the vertical flow and movement are difficult to form, so that effective washing is not performed and My power was declining and I was amazed.

So, for example, in the pulsator method as a response to the improvement of cleaning performance, Based on the known knowledge that “washing in a state where the washing tub is tilted improves cleaning performance and reduces variation in dirt removal”, a washing machine having a washing tub fixed obliquely is disclosed. (For example, Patent Documents 1 and 2).

[0005] Further, as a quick response to drying, a pulsator type washing machine capable of performing a series of washing cycles from a washing process to a drying process, for example, can perform washing only in the drying process. An invention has been disclosed in which drying performance is improved by tilting a tank and rolling clothes (for example, Patent Document 3).

[0006] Patent Document 1: Japanese Patent No. 3193699 (page 3-4, Fig. 1)

Patent Document 2: JP 2000-312800 A (Page 3, Fig. 2)

Patent Document 3: JP-A-2-249588 (Page 3, Fig. 1)

Disclosure of the invention

Problems to be solved by the invention

[0007] However, since the washing machines disclosed in Patent Documents 1 and 2 are for washing in an inclined washing tub, the washing performance is improved, but there are the following problems. .

(A) When drying clothes, the rotation surface of the washing tub is not perpendicular to the direction of gravity (because the rotation axis is not vertical!), So there is inherently “centrifugal force + gravity component”! There was a problem that the structure was “unbalanced” due to the “gravity component” force.

(Ii) Furthermore, when the washing tub or pulsator stops rotating, clothing tends to be biased to one side of the inclined washing tub, which makes it difficult to perform the dehydration process. That is, since the rotation surface of the washing tub is not perpendicular to the direction of gravity (because the rotation axis is not vertical), if clothing is biased on one side, the centrifugal force on one side where the clothing is biased increases. The force of “centrifugal force + gravitational component increased by clothing weight (including water)” or “centrifugal component of gravity on the side without clothing” is generated to promote imbalance, and vibration and noise are increasing. It was.

[0009] On the other hand, the washing machine disclosed in Patent Document 3 is caused to dry with the rotation axis set to vertical after being washed with the washing tub tilted, and thus is caused by the gravity component as described in (a). Although there was no anno lance, there was a problem of unbalance in the rotation of the washing tub when washing was completed with clothing being biased in the washing tub. [0010] Furthermore, since the washing machines disclosed in Patent Documents 1 to 3 are all washed in an inclined washing tub, there is a problem in that the amount of clothing that can be put in is limited. It was. That is, an inclined washing tub has a smaller amount of water that can be stored than a non-tilted washing tub, and the amount of clothing that can be washed with strong water is naturally reduced.

(E) In other words, if a predetermined amount of clothes is made freely washable, the washing tub that is tilted and washed is larger than the washing tub that is washed without tilting, so a large washing tub is provided. This washing machine can be read as the problem that the external dimensions are large.

[0011] (O) Furthermore, in the washing machines disclosed in Patent Documents 1 to 3, the casing is a substantially rectangular parallelepiped, and a clothing outlet for putting in and taking out the clothing is formed on the upper surface of the substantially rectangular parallelepiped. The edge of the top opening of the inclined washing tub (especially the edge on the front side) is in the position where the clothes take-out force is in the back, so it is bad to use and win when putting in and taking out clothes! There was a problem that. In other words, a pulsator-type washing machine with a certain capacity or more has a large washing tub, so the clothes take-out port is positioned at a considerable height on the washing machine's installation surface (same as the floor surface). When putting in or taking out clothes, the force you have to squeeze the bottom of the rinsing tank from the clothes outlet, stretch your back to reach out, or bend down I got it. The poor ease of use was one of the factors that caused the product competitiveness to decline, especially in washing machines with users as housewives.

The present invention has been made in view of the above, and provides a washing machine that guarantees good cleaning performance, prevents rotational unbalance of the washing tub during drying, and is easy to use. The purpose is to provide.

Means for solving the problem

[0013] A washing machine according to the present invention comprises a housing,

A washing tub that is rotatably and tiltably housed in the housing, and into which clothes are put, and for washing and dewatering the clothes;

A tank tilting means for tilting and erecting the washing tub;

Control means for controlling the tank tilting means,

Depending on the stroke until the end of the force before the start of the stroke selected by the user, the washing tub The inclination angle can be changed.

For example, a washing process in which the clothes are washed in a state where the washing tub is inclined (including a rinsing process in an upright state), a dehydration process in which the washing tub is dehydrated in an upright state, and the washing tub is inclined The taking-out process in which the clothes are taken out in this state is executed independently, or the making process is selectively executed continuously.

[0014] In the present invention, the "washing tub" is used for washing and dehydration, and therefore is the same as the "dewatering / washing tub". When supplied, this is the same as “drying / dehydrating / washing tub”.

Further, in the present invention, “washing clothes” refers to one or both of “washing” and “rinsing”. Therefore, it includes the case of rinsing to the second inclination angle after washing in the state inclined to the first inclination angle, or the case of rinsing in the upright state after washing in the state of inclination to the predetermined inclination angle. .

Further, in the present invention, “upright” means a posture perpendicular to the bottom surface of the washing machine, that is, a normal posture, and “tilt” is a predetermined angle with respect to the vertical direction of the bottom surface of the washing machine. Refers to a leaning posture.

Further, in the present invention, “clothing” literally includes daily items such as blankets such as blankets, towels, curtains, etc., which are not limited to “clothes”. It also includes resin products.

The invention's effect

Accordingly, the washing machine according to the present invention has the following effects.

(Ii) Since the clothes are washed with the washing tub tilted before washing or while the washing tub is tilted during washing, the washing performance is improved.

(Mouth) Since the laundry tub is placed in an upright state before dehydration and the clothes are dehydrated, rotation unbalance is reduced or rotation unbalance is prevented.

(C) Washing tub force When the clothes are taken out, the washing tub is inclined, so that the taking-out operation is facilitated and the usability is improved.

Brief Description of Drawings

FIG. 1 is a side sectional view of a washing machine according to an embodiment of the present invention. 2 is a detailed view of the tilting mechanism of the tilting table in the washing machine shown in FIG.

FIG. 3 is a side sectional view showing a state when the tilting table is tilted in the washing machine shown in FIG.

4 is a side sectional view showing a state when the tilting table is tilted in the washing machine shown in FIG.

FIG. 5 is a block diagram illustrating a configuration of control means in the washing machine shown in FIG.

6 is a schematic flowchart of a control method of control means in the washing machine shown in FIG.

FIG. 7 is a time chart for explaining a control method of control means in the washing machine shown in FIG.

FIG. 8 is a time chart for explaining a control method of control means in the washing machine shown in FIG.

FIG. 9 is a correlation diagram qualitatively explaining the relationship between the inclination angle of the washing tub and the washing performance.

FIG. 10 is a schematic diagram for explaining the force acting on the washing tub in the washing machine shown in FIG.

FIG. 11 is a side cross-sectional view schematically showing the washing machine with the tilt fulcrum position changed.

FIG. 12 is a side cross-sectional view schematically showing a change in the position of the tilting fulcrum of the washing machine.

FIG. 13 is a side sectional view of a washing machine equipped with another tilting mechanism.

FIG. 14 is a side sectional view showing a state when the washing tub is tilted in the washing machine shown in FIG. Explanation of symbols

[0017] 1: housing, 2: water tank, 3: suspension rod, 4: pulsator, 5: washing tub, 6: balancer, 7: water tank cover, 8: inner lid, 9: outer lid, 10: top cover 11: Rotating motor, 12: Water supply path, 13: Water supply mechanism, 14: Water supply valve, 15: Fan for drying, 16: Air duct, 17: Heater, 18: Drain hose, 19: Tilt plate, 20: Tilt base , 21: Tilt motor, 22: Pion, 23: Rack, 24: Connection part, 25: Drive part, 100: Washing machine, 110: Control means, 120: Input interface, 140: Output interface, 150: Memory , 160: Clock 帘 1 ”Gozen ^ 170: Timer, 200: Washing machine, 300: Washing machine, 400: Washing machine, 500: Washing machine.

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 is a side sectional view of a washing machine according to an embodiment of the present invention. In addition, in the figure, since each structural member is shown typically, the dimension is not accurate. In particular, for members formed of thin plates, the thickness is exaggerated for clarity. Moreover, the same code | symbol is attached | subjected to this same part in each figure, and a part of description is abbreviate | omitted.

[0019] (Washing machine)

FIG. 1 is a side sectional view of a washing machine according to an embodiment of the present invention. In Figure 1, the laundry The machine 100 performs a series of washing, rinsing, dehydration, and drying steps. As will be described later, the washing tub is inclined (the rotation axis is inclined with respect to the vertical direction). The washing process, the drying process, and the drying process are performed in a state where the washing tub is set upright (the rotating shaft is in the vertical direction), and the rinsing process and the dehydrating process are performed. Therefore, the posture shown in Fig. 1 corresponds to the dehydration process. The washing process and the rinsing process may be collectively referred to as a “washing process”.

[0020] (Housing)

The casing 1 has a rectangular cross section (same as a substantially rectangular parallelepiped), and a top cover 10 is installed on the top surface. The top cover 10 has a top opening connected to the front, a front opening is formed near the top of the front (left side in FIG. 1), and the top opening is connected to the front opening. The section serves as a clothing entry port for taking in and out clothing. A transparent outer cover 9 (consisting of a light-transmitting member such as a colorless or colored transparent plastic) is openably and closably installed at the clothes insertion opening. In addition, corners where the surfaces of the casing 1 and the top cover 10 intersect each other are formed in an arc shape (corner R).

In addition, the casing 1 has an upper end portion of a hanging rod 3 near the upper end portion of the four corners, and a horizontal base 19 is installed at the lower end portion of the hanging rod 3. A tilting fulcrum 20a for rotatably supporting the tilting table 20 is provided near the front surface of the horizontal table 19 (left side in the figure). In order to distinguish from the rotation of the washing tub 5, the rotation of the tilting table 20 is called “tilting” for convenience.

[0021] (aquarium)

In FIG. 1, a water tank 2 is accommodated in a housing 1. The water tank 2 has a cylindrical shape with the top surface opened and the bottom surface closed, and is fixed to the tilting table 20.

An aquarium cover 7 is provided in the form of an inner flange on the upper end surface of the aquarium 2 (same as the periphery of the top opening). That is, the water tank cover 7 has a ring shape, and the clothes are put in and taken out through the inner opening of the ring.

In addition, an inner lid 8 that closes or opens an opening (the same as the inner opening of the ring) of the water tank cover 7 is tiltably installed in the water tank cover 7. That is, the inner lid 8 is arranged below the outer lid 9. [0022] The opening / closing operation (same as the tilting operation) of the outer lid 9 is transmitted to the inner lid 8 by a not-shown interlocking mechanism (mechanical or electrical means, not shown). The lid 8 is also opened, and when the outer lid 9 is closed, the inner lid 8 is also closed.

Further, a lid lock mechanism (not shown) for locking the outer lid 9 (or the inner lid 8) so as not to be opened is provided. The cover lid locking mechanism may be mechanically performed using an electromagnetic pin that moves forward and backward, or when the outer lid 9 (or inner lid 8) is opened and closed by an electric lid opening / closing drive mechanism. The lid opening / closing drive mechanism may not be electrically driven!

[0023] (Laundry tub)

Since the washing tub 5 is used for washing, rinsing, dewatering and drying of the input clothes, it is also called a washing / dehydrating tub or a washing / dehydrating / drying tub. The washing tub 5 is rotatably arranged in the water tub 2. That is, since the water tank 2 is fixed to the tilting table 20 and the tilting table 20 tilts, the washing tank 5 tilts together with the water tank 2 (this will be described in detail separately). The washing tub 5 has a cylindrical shape with the top surface opened and the bottom surface closed, and a plurality of water passage holes for dehydration are formed on the side surface (not shown). A pulsator 4 for agitating the thrown-in clothes and the poured water (hereinafter referred to as “washing water”) is rotatably disposed inside the bottom surface of the washing tub 5. Hereinafter, for the sake of convenience, the rotation of the pulsator 4 is referred to as “turning” in order to distinguish it from the rotation of the washing tub 5.

A balancer 6 is installed around the top opening of the washing tub 5. Therefore, the area surrounded by the inner periphery of the Nolancer 6 is used as an opening for putting in and taking out clothes. In addition, since the aquarium cover 7 is installed in the aquarium 2 storing the washing tub 5, the upper end surface of the nolancer 6 is covered and hidden by the aquarium cover 7.

[0025] (Rotary motor)

A common rotating motor 11 for rotating the pulsator 4 and the washing tub 5 is installed on the bottom surface of the water tub 2 (more precisely, the lower surface of the tilting table 20). Further, a rotation distributing means (not shown) for distributing the rotation of the rotary motor 11 to the pulsator 4 or the washing tub 5 and a pulsator side rotation transmitting means (not shown) for transmitting the rotation (turning) to the common rotation distributing means force pulsator 4 No.) and the common rotation distributing means and the tank side rotation transmitting means (not shown!) For transmitting the rotation to the washing tub 5 are installed. Then, the rotary motor 11 and the rotation distributing means perform predetermined rotation Z stop and distribution in accordance with commands from the control means, respectively, during the washing process, the dehydration process, and the drying process (this) (It will be explained in detail separately).

[0026] (Water supply / drainage mechanism)

A water supply mechanism 13 is installed on the top surface of the water tank 2 (more precisely, the lower surface side of the water tank cover 7). The water supply mechanism 13 has a water supply path 12 that is led out of the casing 1 and connected to an external water supply, and a water supply valve 14 that is installed in the middle of the water supply path 12 to open and close the flow of water. is doing.

A drain port (not shown) is formed on the bottom surface of the water tank 2, and a drain hose 18 is connected to the drain port. A drain valve (not shown) for opening and closing the circulation of water is provided at the drain port or drain hose 18. Accordingly, when the water supply valve 14 and the drain valve are closed and the inner lid 8 is closed, the water tank 2 is sealed.

[0027] (Drying means)

The drying means is for drying clothes with hot air, and includes a drying fan 15 for supplying warm air into the washing tub 5 during a drying process, and a heater 17 for heating air. The drying fan 15 is installed on the lower surface of the horizontal table 19, and a heater 17 is installed at the casing outlet of the drying fan 15. A blower duct 16 that communicates with the casing discharge port and rises along the outer wall of the water tank 2 and opens at the opening edge of the upper part of the water tank 2 is installed. Further, since the air duct 16 is flexible in the vicinity of the communication portion with the casing discharge port, the air duct 16 tilts with the tilt of the water tank 2. When such a drying means is installed on the tilting table 20, the air duct 16 is not required to be flexible. The warm air heated by the heater 17 is discharged to an exhaust duct (not shown) after drying the clothes in the washing tub 5. Then, after “water-cooled dehumidification” is performed to spray water toward the exhausted warm air, it is sent to the air duct 16 and circulated again.

[0028] (Tilt mechanism)

FIG. 2 is a detailed view of the tilting mechanism of the tilting table in the washing machine shown in FIG. In FIG. 2, the tilting table 20 is pivotally supported at a position near the front surface of the horizontal table 19 (hereinafter referred to as “tilting fulcrum”) 20a. Further, a tilting motor 21 is attached to the horizontal base 19, and a pinion 22 is fixed to the rotating shaft of the tilting motor 21. A rack 23 is disposed on the tilting table 20 so as to be movable up and down, and the pion 22 and the rack 23 are held together. Therefore, when the rack 23 pushes up the tilting table 20 by the rotation of the tilting motor 21, the tilting table 20 tilts with the tilting fulcrum 20a as the tilting center (same as the rotation center). In the figure, an upright washing tub 5 (before tilting) is indicated by a two-dot chain line.

[0029] That is, when the tilting table 20 is directed toward the front and tilted by an angle Θ, the front side of the upper end opening of the aquarium 2 is also moved forward by the horizontal distance “D” to the position “2c” to the position “2b”. From the bottom, the vertical distance “E” is lowered from the distance “C” to the height of the distance “B”.

In the figure, the upper edge of the front surface of the housing 1 (if the upper edge is not horizontal, the lowest edge of the upper edge !, the position) is indicated by the position “la”.

[0030] Further, an urging means (for example, a compression panel, hereinafter referred to as "spring") 24 is stretched between the horizontal table 19 and the tilting table 20, and biases the tilting table 20 in a direction to tilt. is doing. Further, a tilt angle detector (not shown) for detecting the tilt angle of the tilt table 20 is installed, and the detection result of the tilt angle detector is input to the control means (not shown), and the tilt motor 21 and the like are Provided for control.

Note that the type of the tilt angle detector is not limited to a type that continuously detects an angle or distance within a tilt range, or a predetermined angle (for example, the maximum tilt angle is the minimum tilt angle (same horizontally)). ) May be detected. Further, non-contact type (optical sensor, magnetic sensor, etc.) or contact type (so-called touch sensor) may be used.

In addition, a tilt lock means (not shown) for locking the tilt of the tilt table 20 is installed. The type of the tilting lock means is not limited. The tilting table 20 directly restrains the tilting of the tilting table 20 itself, or restrains the rotation of one or both of the pion 22 and the rack 23 (for example, freely movable forward and backward). The locking pin may be engaged), or the tilting motor 21 may be electrically locked.

[0032] The tilting mechanism is not limited to that shown in the figure. Instead of the rack 23 that can be raised and lowered, a large pion that fits into the pion 22 is installed on the tilting base 20, or the tilting motor is installed. Replacement Alternatively, a solenoid may be used. Furthermore, a worm gear mechanism may be used instead of the pion z rack mechanism. If a worm gear mechanism is installed, installation of the tilt lock means can be omitted.

As another tilting mechanism, as shown in FIG. 13 and FIG. 14, the water tank 2 is suspended by the four corner force suspension rods 3 at the top of the casing 1, and the water tank 2 of the suspension rods 3 is You may make it raise / lower the hanging rod 3 installed in the back side. This is because when the suspension rod 3 on the rear side of the aquarium 2 is slid upward, the aquarium 2 tilts forward (see FIG. 14), and when the suspension rod 3 is slid downward, the aquarium 2 stands upright. It will return to the state (see Figure 13). This is based on the fact that the suspension rod 3 and the aquarium 2 are slidably connected to each other at the connecting portion 24, and by moving the suspension rod 3 up and down, Tilt is possible. The suspension rod 3 is slid in the vertical direction by the drive unit 25, and the drive unit 25 can be anything that can move the suspension rod 3 up and down in the longitudinal direction. A structure adapted to 25 may be provided so that the hanging rod 3 is moved up and down. For example, a female screw portion is formed on the suspension rod 3 and the drive portion 25 is configured to rotate the male screw portion, and the rotation of the male screw of the drive portion 25 is transmitted to the female screw portion of the suspension rod 3 so that the suspension rod 3 The water tank 2 may be tilted and upright by moving it upward or downward. In addition, in the case of a tilting mechanism that tilts the water tank 2 by sliding the suspension bar 3 up and down, a detection means (not shown) for detecting the length adjustment position of the suspension bar 3 (position of the suspension bar 3) is provided. If the inclination angle of 2 is detected, the water tank 2 can be controlled to a desired inclination angle.

(Tilt posture)

3 and 4 are side cross-sectional views showing the tilting table tilted in the washing machine shown in FIG. 1, and FIG. 3 shows the state in which the inner lid 8 and the outer lid 9 are open (clothing input). FIG. 4 shows a state in which the inner lid 8 and the outer lid 9 are closed (corresponding to washing and stroke).

3 and 4, since the tilting table 20 is tilted toward the front, the position of the front side of the upper end opening of the washing tub 5 moves forward to the position “2b” and the bottom force distance “B” is increased. It is height. At this time, the top edge of the front of the chassis 1 (or the lowest position of the top edge if the top edge is not horizontal) is the position “la” and the height of the bottom force distance “A”, and the distance " A "is smaller than distance" B "! / Large or almost the same! /

That is, the upper end edge la of the front surface of the housing 1 is lower than the position 2b on the front surface side of the upper end opening of the washing tub 5. In addition, as described above, the position 2b on the front side of the upper end opening of the washing tub 5 is advanced and lowered by tilting, so that a user standing on the front can easily reach the back of the washing tub 5. At the same time, since the upper opening of the washing tub 5 is oriented in the direction of the user's line of sight due to tilting, it is easy to spread to the bottom of the washing tub 5. Therefore, clothes can be easily put in and taken out.

[0034] (Control means)

FIG. 5 is a block diagram illustrating the configuration of the control means in the washing machine shown in FIG. In FIG. 5, the control means 110 includes a CPU 130, an input interface 120, an output counter interface 140, a memory 150, and a clock control unit 160 (connected to the timer 170). The input interface 120 is connected to an operation course setting switch, a power switch, an operation switch, etc. (indicated by “…” SW in the figure) for inputting a predetermined signal to the CPU 130, and an inclination angle detector. Via this, the output interface 140 is connected to a drying fan 15 to which a predetermined control signal is output from the CPU 130, a motor (generically referring to the rotary motor 11 and the tilting motor 21), and the like.

The safety SW refers to, for example, switches that confirm that a lid locking mechanism that locks the opening / closing of the outer lid 9 or a tilt locking mechanism that locks the tilting plate 20 is operating. Yes.

In addition, the 150-bit memory stores control conditions corresponding to each process of the driving course. Then, the CPU 130 issues a control command for determining the tilt angle described below and tilting to the determined tilt angle according to each stroke of the driving course.

[0035] (Control method)

6 to 8 illustrate the control method of the control means in the washing machine shown in FIG. 1, FIG. 6 is a schematic flowchart, and FIG. 7 is a time chart when the washing process is performed by tilting the washing tub. Fig. 8 is a time chart when the washing tub is executed with the washing tub upright.

Hereinafter, the outline of the flow will be described first with reference to FIG. 6, and then the details of the flow will be described with reference to FIG. 8 will be described.

In FIG. 6, the washing machine 100 includes a washing process, a rinsing process (hereinafter, the washing process and the rinsing process may be collectively referred to as a “washing process”), a dehydrating process, and a drying process. The process can be executed, and the user can set the “driving course” as appropriate. There are an “initial process” before the driving course is executed and an “end process” after the driving course is executed.

[0037] (i) During the initial stroke, when the power switch is turned on (ON), the washing tub 5 is tilted.

(ii) If the set driving course includes a washing process! /, or if the amount of clothes put in is large, `` upright washing '' is performed in which the washing tub 5 is washed upright. When the amount of clothes put in is small, “Inclined Washing!” Is performed in which the washing tub 5 is washed in an inclined state.

(iii) When the set driving course includes a rinsing process, an “upright rinsing” is performed in which the washing tub 5 is washed upright regardless of the amount of clothes put in.

[0038] (iv) When the set operation course includes a dehydration process, "upright dehydration" is performed in which the laundry tub 5 is dehydrated in an upright state regardless of the amount of clothes input. .

(v) When the set driving course includes a drying process, if there is a large amount of clothes input, `` upright drying '' is performed in which the washing tub 5 is dried in an upright state, When the amount of clothes thrown in is small! / ヽ, “tilt drying” is performed in which the laundry tub 5 is dried while being tilted.

[0039] (vi) In the final stage, the power switch is automatically turned off (OFF) and the washing tub 5 is tilted. When the lid is closed (corresponding to the end of taking out clothes), the washing tub 5 stands up and the series of steps is completed.

Next, the control flow will be described based on the term chart.

(S1: clothing input)

In FIG. 7, after the washing machine 100 is turned on (ON), the washing tub 5 tilts, for example, at an inclination angle of 20 °, and after the tilting is finished, the lids of the inner lid 8 and the outer lid 9 are locked. Opened. Then, since the inner lid 8 and the outer lid 9 can be freely opened and closed, the user can appropriately open the outer lid 9 (the inner lid 8 is also opened in conjunction) and put the clothes into the washing tub 5. At this time, the washing tub Since 5 is inclined, it is easy to put in clothing as described above.

When the washing tub 5 of the washing machine 100 is tilted and the power is turned off (OFF), the tilt of the washing tub 5 is mechanically locked during this time, and the inner lid 8 and the outer lid 9 are opened and closed. Since it is free, the user can appropriately open the outer lid 9 (and also open the inner lid 8 in conjunction) and put the clothes into the washing tub 5. At this time, since the washing tub 5 is inclined, it is easy to put in clothes as described above.

[0041] (S2: Start of operation)

When the user sets a driving course and turns on the operation switch (ON), when the outer lid 9 (or inner lid 8) is closed, the outer lid 9 (or inner lid 8) is locked so as not to be opened.

Once the outer lid 9 (or inner lid 8) is locked, the lid lock is not released unless the power switch is turned off (turned off) or the entire course of the set operation course is completed.

[0042] (S3: Load detection)

Next, the load amount (the weight of the put-in clothes) is detected by a known method. In other words, after rotating motor 11 and rotating pulsator 4 by a certain amount, rotating motor 1 1 (pulsator 4) is stopped, and the weight of clothing is determined by the inertial rotation of pulsator 4 after stopping ( Detects the value that can be converted to “load amount”).

[0043] (S4: Determination of water injection amount and inclination angle)

Then, based on the detection result of the load amount, the water injection amount and the inclination angle of the rinsing tank 5 in the washing process (same as the angle formed by the axial center with the vertical direction) are determined.

For example, when the tank 2 has a diameter of about 540 mm and a depth of about 540 mm, and the detected weight of the garment is about 6 kg or less, the inclination angle is set to 30 °, for example. Then, as will be described later, the washing performance is improved, and a sufficient amount of water penetrating into the clothing can be secured.

On the other hand, for example, when the detected weight of clothing exceeds about 6 kg, the inclination angle is set to 0 °. That is, the washing tub 5 is kept upright without being inclined to ensure a sufficient amount of water to penetrate into the clothes, and the water in the washing tub 5 does not spill during washing (hereinafter referred to as “upright washing, method”). "See Figure 7). [0044] (S5: water injection and tilting)

Then, water injection and tilting are executed based on the determination. That is, the tilting motor 21 installed on the horizontal base 19 is driven to tilt the tilting base 20 on which the washing tub 5 is fixed. That is, the control means outputs a tilt tilt command to the tilt motor 21. When the tilt angle detector detects that the tilt angle Θ force is 20 ° (0 = 20 °), or the tilt angle detector (equivalent to a position sensor) installed at a tilt angle of 20 °. )), The tilt motor 21 is stopped. That is, the control means outputs a tilt stop command to the tilt motor 21.

In addition, after the pouring is finished (after the water supply valve which has been opened once is closed), the tilting starts and the washing starts during the tilting. Water injection may be started later.

In particular, in the case of the upright washing method, it is preferable to inject water after the end of tilting so that water does not spill from the tank 2 or to end tilting before the amount of water is almost full (see FIG. 8). .

[0045] (S6: Washing)

In the washing, the tilt lock mechanism operates with the washing tub 5 tilted at an inclination angle of 20 °, and the pulsator 4 rotates at a low speed in the locked state. “Improvement of cleaning performance” by laundering the washing tub 5 will be explained separately. When the end of the washing process is approaching, the drain valve is opened, and the rotary motor 11 is decelerated and stopped while draining.

[0046] (S7: Tilt)

When draining is finished, the tilt lock mechanism is opened, and the washing tub 5 starts tilting to stand upright. That is, the tilting motor 21 installed on the horizontal base 19 is driven again to tilt the tilting base 20 on which the washing tub 5 is fixed.

When the tilt angle detector detects that the tilt angle Θ is 0 ° (0 = 0 °), or the tilt angle detector installed at the position of the tilt angle 0 ° (corresponding to the upper limit sensor) When the motor is activated, the tilting motor 21 is stopped and the washing tub 5 is made perpendicular to the floor (same as lead).

Note that the tilt lock mechanism is opened before the drainage is finished, and tilting of the washing tub 5 is started. May be. Even if an operation course that does not include a rinsing process is set, by performing a predetermined time of washing in the washing tub 5 in an upright state before the washing process is completed, Since it is possible to reduce the unevenness of clothing, it is possible to reduce the rotational imbalance in the dehydration process immediately after that.

[0047] (S8: Rinse)

Rinsing is performed with the tilt lock mechanism actuated (locked) while the washing tub 5 is upright. In FIG. 7, the rotary motor 11 is rotated at a low speed while supplying water, and after a predetermined amount of water is supplied, the water supply is stopped, but the rotation continues, and eventually the rotary motor 11 is decelerated and stopped immediately before the end of rinsing. Although the drain valve is shown to open and drain, the present invention is not limited to powerful control.

For example, water injection → rinsing → water removal → water injection → rinsing may be executed with a dehydration process of rotating the washing tub 5 at a high speed in the middle. At this time, since the washing tub 5 stands upright, even if the rinsing tub 5 is rotated at a high speed, the generation of vibration and noise can be kept low.

In other words, even if the clothes are biased to one side of the washing tub 5 at the end of the washing and the stroke, the unevenness of the clothes is eliminated by rinsing the washing tub 5 upright. Thus, vibration and noise can be reduced in the subsequent dehydration process.

Before starting water injection for the rinsing process, with the drain valve open, rotate the rotary motor 11 (for example, rotate at a rotation speed of around 800 rpm) ) "Or water injection, rinsing (pulsator 4 turning) and draining may be performed simultaneously.

[0048] (S9: dehydration)

Dehydration is performed by rotating the rotary motor 11 (washing tub 5) at a high speed while the washing tub 5 is upright. At this time, since the gravity component is not subjected to an unbalanced load (force acting obliquely with respect to the rotation axis), the rotation is stabilized. Therefore, even if the clothes in the washing tub 5 are biased, intense vibrations and noises may occur during high-speed rotation, and the washing tub 5 (water tub 2) may collide with the housing 1. Wow!

[0049] (S10: Tilt)

When the dehydration is finished, the tilt lock mechanism is opened, and the tilt of the washing tub 5 is started and tilted. Let That is, when the tilt motor 21 is driven again, for example, when the tilt angle detector detects that the tilt angle Θ force ^ 0 ° (0 = 30 °) has been reached, or at a position where the tilt angle is 30 °. When the tilt angle detector (corresponding to the upper limit sensor) is activated, the tilt motor 21 is stopped and the tilt lock mechanism is activated (locked).

[0050] (S11: Dry)

Then, the heater 17 is energized (ON) and the drying fan 15 is activated (ON) to supply hot air to the water tank 2 via the air duct 16. During this time, the washing tub 5 is tilted, and a “stirring rotation” is performed by the reversal of the pulsator 4, and asymmetrical force is applied to the clothes, and the clothes are stirred more than when the washing tub 5 is upright. Is promoted, and drying can be performed efficiently and drying unevenness can be reduced. However, if there is a large amount of clothes thrown in, the washing tub 5 may be dried while standing upright (see Fig. 8). Note that “stirring rotation” refers to an operation in which the pulsator 4 is largely inverted to change clothes.

Note that the rotary motor 11 and the drying fan 15 may be started in parallel with the tilting operation. 7 and 8, the water supply valve 14 is opened during the drying process to prevent static electricity by supplying water to the washing tub 5 slightly (sprinkling water directly on the clothes), or by using a switching valve (not shown). The hot air after changing the direction of water supply and drying the clothes returns to the circulating duct when it returns to the circulating duct. In other words, it is intended to promote condensation of water evaporated from clothes (contained in warm air). However, the water supply during the drying process may be stopped.

[0051] (S12: Tilt)

When the drying process is completed, the tilt lock mechanism is opened, and the washing tub 5 is tilted again to set the tilt angle to 20 °. The tilt of the washing tub 5 may be started immediately before the end of the drying process and in parallel with the drying.

(S13 removal)

When the tilting is completed (when the tilting angle reaches 20 °), the lid lock is released on condition that the tilting lock mechanism is activated (locked) and the rotary motor 11 is stopped. Then, the user can easily take out the clothes from the washing tub 5 by opening the outer lid 9 (and opening the inner lid 8 in conjunction). At this time, since the washing tub 5 is inclined, a hand is behind the washing tub 5. It is easy to reach and the top opening of the washing tub 5 is oriented in the direction of the user's line of sight, so that it can easily reach the bottom of the washing tub 5.

If the amount of clothing is large, the user can specify the default position and stand the washing tub 5 upright when taking out the clothing.

[0052] (S14: Tilt)

When the clothes are taken out and the outer lid 9 (and the inner lid 8) is closed, the washing tub 5 (same as the water tub 2) tilts and stands upright, and in this upright state, the lid lock is opened (opened). Be free).

(S15: End)

Then, the power switch is automatically turned off (OFF), and the whole process is completed. At this time, since the tilting table 20 is supported in a wide range of the horizontal table 19, the weight of the tank 2 or the like is placed on the tilting fulcrum 20a. Does not work intensively. Therefore, the tilting fulcrum 20a is released from the load force over a long time, and the durability is improved.

[0053] It should be noted that the user can designate the default position, and leave the washing tub 5 in an inclined state to finish!

[0054] (Washing performance)

FIG. 9 is a correlation diagram qualitatively explaining the relationship between the inclination angle of the washing tub and the washing performance in the washing machine shown in FIG. On the vertical axis, the degree of dirt removal when washing upright is taken as 100%, and the ratio of the degree of dirt removal when laundering is taken as “cleaning performance”. That is, the larger the cleaning performance value, the more “dirt is removed”. In addition, the variation in dirt removal when washing upright is set to 100%, and the ratio of the variation in dirt removal when laundering to this is “washing, unevenness”. In other words, the value of washing and unevenness is small! / Indicates that “dirt falls evenly”! /

In FIG. 9, when the inclination angle is 15 ° to 20 °, both the cleaning performance and the cleaning unevenness show good values. The curve shown in FIG. 9 also varies depending on the amount of clothes put into the washing tub (same as the load amount) and the shape and size of the washing tub.

[0055] (Tilt effect) FIG. 10 is a schematic diagram for explaining the force acting on the washing tub in the washing machine shown in FIG. 1. In FIG. 10, the surface of the washing water (water surface) is filled horizontally while the washing tub 5 is not stationary. Because of the inclination, the washing tub 5 is inclined with respect to the rotation axis. When the washing tub 5 is rotated with the case 1 tilted toward the front side of the case 1 at an inclination angle Θ, the mass of the mass [m] on the inner peripheral surface of the washing tub 5 is perpendicular to the mass point. Gravity [m'g (g is acceleration of gravity)] in the direction and centrifugal force [F] in the radial direction of the washing tub 5 are applied. At this time, gravity [m'g] is the force in the direction of pressing the inner peripheral surface at the position on the front side (indicated by [+ m'g's in 0] in the figure), Since the inner peripheral surface force acts as a force in the direction away from the inner surface (indicated by [m'g 's in θ] in the figure), the front surface has a rotating surface (water surface) descending component, and the rear surface has a rotating surface ( Water surface) It becomes a rising direction component.

[0056] Therefore, when the washing tub 5 is rotated upright, the water surface forms a rotationally symmetric surface around the rotation axis, whereas when the washing tub 5 is rotated at an inclination, Since the water surface forms an asymmetric surface with respect to the rotation axis, the force acting on the washing water and clothes in the washing tub 5 is asymmetric with respect to the rotation axis, and the washing tub 5 is in an upright state. Compared to this, the water flow and the movement of clothes become complicated, the cleaning power increases, and the washing unevenness decreases (see Fig. 9).

[0057] (Determination of tilt angle)

In the above description, the case where the inclination angle in the washing process is 30 °, and the inclination angle in the loading / unloading of clothes and the drying process is 20 ° is described as an example, but the present invention is not limited to this. In the washing process, a predetermined inclination angle can be determined according to the amount of clothing (corresponding to the load amount) within a range of 10 ° to 45 °. In addition, the inclination angle can be selected within a range of 0 ° to 30 ° at the time of putting in and taking out clothing and the drying process.

In other words, as described above, the inclination angle that maximizes the washing performance varies depending on the size of the washing tub and the amount of clothes to be added. (Washing, stroke) is desired.

[0058] Further, the inclination angle (removal process) is determined in consideration of the height of the user and the size of the housing. It is desirable to be determined. Furthermore, each user may set an inclination angle (extraction process) that can be easily used. At this time, the opening formed in the top cover 10, that is, the outer lid 9, is formed when the washing tub 5 stands upright in order to respond to a request for putting in or taking out clothes while the washing tub 5 is upright. Since the clothes need to be large enough to be taken out, the upper lid 9 (corresponding to the inner lid 8) includes the upper opening of the washing tub 5 when projected upright (equivalent to the inner lid 8). (Covered). In other words, the outer lid 9 becomes long by facing the rear surface.

[0059] When the tilt angles before and after tilting are the same, for example, when all the strokes are executed at the same tilt angle, for example, after the clothes are put in, the process proceeds to the washing stroke. Naturally, there is no tilting when moving to take-out of clothes during the drying process. That is, since the time required for tilting (changing the tilting angle) becomes unnecessary, the time required for a series of driving courses can be shortened, and the load on the tilting mechanism can be reduced.

[0060] Further, the inclination angle in the washing process or the drying process is not limited to 1, but is selected by selecting one or more inclination angles within a range of 10 ° to 45 ° or 0 ° to 30 °. It may vary stepwise, and the tilt angle continuously varies within the range, that is, between the minimum tilt angle (including upright) and the maximum tilt angle tilt once or twice or more You can go back and forth (referred to as “swing” in the present invention)!

At this time, more complicated water flow is generated and the clothes are agitated in washing, and the washing performance is improved, and further clothes are agitated in drying, so warm air is also included inside the clothes lump. Can improve drying speed.

[0061] (Upright washing method)

As already explained, the upright washing and method are summarized below (see Fig. 8). The upright washing method is intended to prevent the washing water from overflowing or becoming unwashable when a large amount of clothing is thrown in. That is, when the washing tub 5 stands upright, the amount of washing water that can be supplied to the washing tub 5 (that overflows during washing) is greater than when the washing tub 5 tilts. Therefore, by enabling the upright washing method, a large amount of clothes can be washed without enlarging the washing tub 5 (same as the casing 1). In addition, upright washing tub Although it is dry in 5, the washing tub 5 may be inclined and dried. At this time, the drying acceleration effect described above is exhibited.

[0062] (Modification 1 of washing machine)

FIG. 11 and FIG. 12 are side sectional views schematically showing a change in the position of the tilting fulcrum of the washing machine shown in FIG. 1, and the description of some members is omitted.

In FIG. 11 (a), the washing machine 200 is inclined at a range close to the top surface of the front surface of the washing machine 100 shown in FIG. That is, there is a tilting fulcrum 20a near the front surface of the horizontal table 19, and the rack 23 pushes up the tilting table 20 at a position near the rear surface (hereinafter referred to as "tilting point") 23a. For this reason, the front of the opening of the washing tub 5 approaches the front of the housing 1 by a distance “D1” by setting the lower front portion of the water tub 2 as the center of rotation. It will be easier, and no clothes will be dropped between the tank 2 and the housing 1. At this time, the upper range of the front surface of the housing 1 is inclined so as to be substantially parallel to the inclined washing tub 5 (same as the water tub 2), so that the user can approach the washing tub 5 further. become.

By the way, in the time charts shown in FIGS. 7 and 8, tilting (inclining from upright) is started after water is poured into the washing tub 5, and tilting (inclining state force is also directed toward the upright state) is started after draining. However, the present invention is not limited to this. After the washing tub 5 is tilted (tilted from the upright), water is poured, and after the tilting (the tilted state force is also directed to the upright state) is finished, Draining may be started.

If the water injection is delayed in this way, the washing tub 5 before becoming heavy is lifted, and the load on the tilting motor 21 is lightened. Therefore, the tilting time is shortened together with the energy saving effect. If the drainage is delayed, the heavy washing tub 5 is lifted (lowering while supporting the load), and the load on the tilting motor 21 is lightened. Become.

[0064] (Modification 2 of washing machine)

In (b) of FIG. 11, the washing machine 300 is provided with a rail 19a parallel to the front-rear direction of the housing 1 near the front surface of the horizontal table 19, and the tilting fulcrum 20a of the tilting table 20 is slidable along the rail 19a. It is a thing. That is, when tilting, the upper front side of the washing tub 5 is lowered in parallel with the front surface of the housing 1 (moved from the position “2c” to the position “2e”). Therefore, since the front surface of the housing 1 can be flattened by adopting such a configuration, when the user cleans the surroundings, performs other work, or passes nearby, the washing machine 300 Will not be in the way. The timing of water injection and drainage and tilting is the same as for the washing machine 100.

[0065] (Modification 3 of washing machine)

In FIG. 12A, the washing machine 400 is a case where the position “20b” closer to the rear surface of the casing 1, that is, the lower rear portion of the washing tub 5 is used as a tilting fulcrum. By adopting such a configuration, the height of the front side of the upper opening of the washing tub 5 can be further lowered compared to the case where tilting fulcrums are arranged at other positions, so that the child and the height of the child tub are short. People or people sitting in wheelchairs can easily put in and take out clothes.

In the washing machine 400, the timing of water pouring and draining is not limited, but if it is lifted after draining (tilting force tilts in an upright position), poured into the washing tub 5 and then lowered ( Upright state force Tilts in the tilted state), the load on the tilting motor 21 is lightened, and the tilting time is shortened along with the energy saving effect.

[0066] (Modification 4 of washing machine)

In FIG. 12 (b), the washing machine 500 has a horizontal base 19 and a tilting base 20 formed by frame bodies (not shown), respectively, and the water tank 2 passes through the frame of the frame body. The tilting base 20 is tiltably mounted on the horizontal base 19 with the center position “20c” of the water tank 2 (corresponding to canceling the water tank 2 (same as the washing tub 5) in the front-rear direction and the vertical direction). It has been. By adopting such a configuration, the upper half of the front side of the tank 2 falls forward (forward), the lower half falls backward (retracts), and the front side of the upper edge of the tank 2 Descends in a relatively small arc. Therefore, if the upper part of the front surface of the casing 1 is tilted only within a relatively narrow range, the front side of the upper edge of the tank 2 is increased in the vertical direction with a relatively small tilt angle (only distance “E4”). Can be lowered. That is, since the gap between the front surface of the casing 1 and the water tank 2 can be narrowed when standing upright, the casing 1 becomes compact.

[0067] Note that the installation of the tilting table 20 may be omitted and the water tank 2 may be directly supported.

In addition, in the washing machine 500, the timing of water injection or drainage and tilting is not limited. Yes. However, when the washing tub 5 is tilted (especially when it is tilted with water injected), if it is tilted beyond the predetermined tilt angle, the washing tub 5 will be subjected to a force to tilt further. 23 and the tilting table 20 must be lifted and lowered by the rack 23. A worm mechanism may be adopted instead of the rack Z-pion mechanism. At this time, the shaft pivotally supported on the tilting fulcrum 20c may be directly rotated.

[0068] (Other washing machines)

As is apparent from the above description, in the present invention, it is possible to employ variations other than those described above without limiting the positions of the tilting mechanism and tilting fulcrum. For example, the tilting fulcrum 20c of the washing machine 400 may be moved to the upper end of the water tank 2 (not shown). At this time, due to tilting, the front side of the upper end of the water tank 2 descends with almost no retreat. Further, for example, the tilting fulcrum 20c of the washing machine 500 may be moved to the upper end of the water tank 2 (not shown). At this time, the front side of the upper end of the water tank 2 is slightly retracted with a small radius by tilting, but can be lowered by a desired amount.

Further, if the tilting fulcrum is moved to the upper end of the water tank 2 in this way, the water supply path 12 can be made inexpensive and simple. That is, even if the water supply path 12 lacks flexibility and stretchability, the water supply path 12 can be communicated with the water tank 2 by a known swivel or the like.

Industrial applicability

[0069] Since the present invention has the above-described configuration, the cleaning performance is good, the water is gently dehydrated, and the clothes can be taken out! Therefore, it can be widely used as a washing machine for various homes and businesses.

Claims

The scope of the claims

[1] a housing;

A washing tub accommodated in the housing so as to be rotatable and tiltable, and for washing and dewatering the thrown-in clothes;

A tank tilting means for tilting and erecting the washing tub;

Control means for controlling the tank tilting means,

In the washing process, the laundry is washed while the washing tub is inclined, while the washing tub is inclined from an upright state, or while the washing tub is swung. .

[2] a housing;

A tank tilting means for tilting and erecting the washing tub;

Control means for controlling the tank tilting means,

For dehydration process! First, the clothes are dehydrated with the washing tub upright.

[3] the housing;

Clothing drying means installed in the washing tub for drying the garment; tank tilting means for tilting and erecting the washing tub;

Control means for controlling the tank tilting means,

In the drying process, the clothes are dried while the washing tub is inclined, while the washing tub is inclined from an upright state, or while the washing tub is swung. Washing machine.

[4] a housing;

A washing tub accommodated in the housing so as to be rotatable and tiltable, and for washing and dewatering the input clothes; A tank tilting means for tilting and erecting the washing tub;

Control means for controlling the tank tilting means,

The washing machine, wherein the laundry tub is inclined when the clothes are put in or taken out.

[5] a housing;

A tank tilting means for tilting and erecting the washing tub;

Control means for controlling the tank tilting means,

A washing machine characterized in that the inclination angle of the washing tub can be changed according to the stroke until the end of the pre-start force of the stroke selected by the user.

[6] In the washing process, the clothes are washed at least in a state where the washing tub is inclined or in a state where the washing tub is in an upright state or while the washing tub is swung. The washing machine according to claim 5.

[7] The washing machine according to claim 5 or 6, wherein the clothes are dehydrated while the washing tub is in an upright state during the dehydration process.

[8] A clothes drying means for drying the clothes is installed in the washing tub,

In the drying process, the clothes are dried while the washing tub is inclined, while the washing tub is inclined from an upright state, or while the washing tub is swung. Item 8. A washing machine according to any one of Items 5 to 7.

9. The washing machine according to claim 5, wherein when the clothes are taken out, the clothes are taken out in a state where the washing tub is inclined.

[10] The washing machine according to any one of [5] to [9], wherein the washing tub stands upright before the washing process is completed.

[11] having load amount detection means for detecting the load amount in the washing tub,

When the load detected by the load detection unit exceeds a predetermined upper limit, the control unit causes the tank tilting unit to stand the washing tub upright before starting a washing process. The washing machine according to any one of claims 5 to 10.

[12] It has load amount detection means for detecting the load amount in the washing tub,

Based on the load amount detected by the load amount detection means, the control means determines an angle for inclining the washing tub, and before or during the washing process.

The washing machine according to any one of claims 5 to 10, wherein the tub tilting means tilts the washing tub so as to have the determined angle.

[13] It has load amount detection means for detecting the load amount in the washing tub,

The control means determines an angle at which the washing tub is inclined during a washing process based on the load amount detected by the load quantity detection means, and the angle at which the washing tub is determined by the tank tilting means during the washing process. The washing machine according to any one of claims 5 to 12, wherein the washing machine is inclined so as to become.

14. The plurality of angles of tilting the determined washing tub are plural.

The washing machine according to any one of 13 above.

15. The control unit according to claim 11, wherein the control unit increases the inclination angle of the washing tub when the load amount detected by the load amount detection unit is smaller than when the load amount is large. 14. The washing machine according to any one of 14.

16. The washing machine according to any one of claims 11 to 15, wherein the control unit releases the movement to the clothes take-out angle when the load in the washing tub is large.

[17] The load amount detection means detects the amount of clothes and Z or the amount of water put into the washing tub as the load amount in the washing tub. The washing machine as described in.

[18] The tank tilting means for tilting and erecting the washing tub is provided with a drive unit for sliding a hanging rod that vertically suspends the water tub on the housing, and the driving unit is configured to be driven by the control unit. 18. The washing machine according to claim 1, wherein the washing tub is inclined and upright.

[19] The tank tilting means includes a male screw portion formed on the suspension rod and a drive unit that rotates the male screw portion, and the washing tub is configured to suspend the suspension rod by a rotation operation of the male screw. 19. The washing machine according to claim 18, wherein the lowering length is adjusted so as to be inclined and upright.

20. The washing machine according to claim 19, further comprising detection means for detecting a length adjustment position of the suspension rod, wherein the control means controls the drive unit based on a result of the detection means. .

[21] A clothing doorway for entering clothing into the housing is formed,

21. The control unit tilts the washing tub so that the opening of the washing tub is substantially opposed to the clothing doorway of the housing after the end of the process selected by the user. The washing machine according to any one of the above.

[22] A clothing entry / exit for inputting clothing to the housing is formed, a lid for opening and closing the opening is installed, and a lid locking mechanism for locking the lid in a closed state is installed, The washing machine according to any one of claims 1 to 21, wherein the lid is unlocked by the lid lock mechanism after the washing tub is tilted to take out the product.

[23] A tank tilt lock means for locking the washing tub so as not to tilt is installed,

23. The washing machine according to claim 22, wherein the control means locks the washing tub with the tank tilt locking means while the washing tub is in an inclined state or an upright state.

[24] comprising an opening / closing detection means for detecting opening / closing of the lid,

The washing machine according to claim 22 or 23, wherein the control means tilts the washing tub only when the opening / closing detection means detects that the lid is in a closed state.

[25] The water supply means for supplying water to the washing tub is installed in the casing, and the water supply means has a stretchable structure communicating with the washing tub. The washing machine according to any one of the above.

[26] The casing is a substantially rectangular parallelepiped,

The top surface force of the case has a clothing insertion port formed as an opening extending over the front surface, and the front edge of the upper end opening of the washing tub when the washing tub is inclined toward the front surface 26. The lower end of the clothing input port on the front surface of the housing is substantially the same as the lower edge of the clothing input port, or is lower than the lower edge of the clothing input port on the front surface of the housing. A washing machine according to any one of the above.

[27] The edge of the top surface of the housing near the rear surface of the clothing input port is substantially the same distance as the front edge of the edge of the upper end opening of the laundry tub when the laundry tub is upright, or 27. The washing machine according to claim 26, wherein the washing tub is positioned closer to a rear surface than an edge of the upper end opening of the laundry tub when the washing tub is upright.

[28] The entire front surface of the housing or a part near the top surface is inclined forward and the front opening is formed in the inclined range. Or 27 washing machine.

29. The washing machine according to claim 23, wherein the tub tilt locking means locks the tilt of the washing tub before the water supply means supplies water to the washing tub.

[30] Before the water is supplied to the washing tub, the control means causes the tub tilting means to tilt the washing tub, and further, after the washing tub force water is discharged, the tub tilting means. The washing machine according to any one of claims 1 to 28, wherein the washing tub is made upright.

31. The washing machine according to any one of claims 1 to 30, wherein the washing tub is supported so as to be tiltable in a plane including a central axis thereof.

[32] A water supply / drainage means for supplying water to the washing tub and discharging water from the washing tub is installed, and the water supply / drainage means is controlled by the control means,

The position of the washing tub near the front of the housing is a tilting fulcrum,

The washing machine according to any one of claims 1 to 30, wherein the tank tilting means uses a position closer to the rear surface than the tilting fulcrum as an action point.

[33] The control means causes the tub tilting means to incline the washing tub, then causes the water supply / drainage means to supply water, and further causes the tub tilting means to cause the washing tub to stand upright, and then the water supply / drainage means. The washing machine according to claim 32, wherein the washing machine is drained.

[34] Supplying / draining means for supplying water to the washing tub and discharging water from the washing tub is provided, and the supply / drainage means is controlled by the control means,

The position of the washing tub near the rear surface of the housing is a tilting fulcrum,

The washing machine according to any one of claims 1 to 30, wherein the tank tilting means uses a position closer to the front side than the tilting fulcrum as an action point. After the control means feeds water to the water supply / drainage means, the tank tilting means tilts the washing tub, and after draining to the water supply / drainage means, the tank tilting means causes the washing tank to stand upright. 35. A washing machine according to claim 34.