JP2007117555A - Drum-type washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum-type washing machine which prevents the machine from being used in the condition that a fastening fitting is not removed. <P>SOLUTION: The drum-type washing machine has: a rotary drum 2 receiving the laundry and driven and rotated around the rotary shaft center in a horizontal direction or an inclined direction; a water tank 3 rotatably receiving the rotary drum 2 within it and oscillatably supported in a washing machine casing body 6; a notifying means 35 notifying abnormality; an input set means 21 into which an operating course or others are input and set; and a control means 20 controlling respective steps of washing, rinsing, and dehydrating in series. The control means 20 determines whether the fastening fitting 83 for securing the water tank 3 to the washing machine casing body 6 is detached when the predetermined input is carried out by the input set means 21. When the fastening fitting 83 is determined not to be detached, a user is notified of the abnormality by the notifying means 35. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drum-type washing machine that suppresses vibration associated with rotation of a rotating drum by supporting a water tank containing the rotating drum in a casing by a vibration control structure.

  Conventionally, a drum-type washing machine is provided with a water tub containing a rotating drum with the rotation axis direction of the horizontal direction or an inclined direction rising upward from the horizontal direction. It tends to be biased downward, and tends to generate vibrations accompanying high-speed rotation of the rotating drum. In order to minimize such vibrations, the water tank containing the rotating drum is three-dimensionally supported by a plurality of damping members and provided with an elaborate control device to rapidly increase and decrease the rotation speed, etc. The so-called unraveling process is performed, and the number of rotations is gradually increased while keeping the vibration generated at that time within the balance with the suppression performance of the damping member. Yes.

In addition, since the rotating drum is three-dimensionally supported by the damping member in this way, it receives excessive amplitude in resonance with various vibrations encountered during transportation, such as after shipment from the factory, However, there is a way to prevent deformation and failure of the rotating drum during transportation by temporarily connecting and fixing the water tank containing the rotating drum to the housing during shipping and transportation. It is known (for example, see Patent Document 1).
JP 2005-137644 A

  However, such a conventional drum-type washing machine needs to leave the temporary fixing work to the user before it is used, and even if appealed by installation instructions or precautions on the surface of the washing machine, many Some users may forget or do not notice and use it without removing the temporary fixing. In that case, the vibration of the aquarium due to unbalance of the laundry in the rotating drum is transmitted to the casing by connecting and fixing the aquarium and the casing, and abnormal vibration and noise are generated in the casing. There was a problem that.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a washing machine that prevents a drum-type washing machine from being used in a state where a fixing bracket is not removed.

  In order to achieve the above object, a drum-type washing machine according to the present invention accommodates laundry and is rotationally driven with a horizontal or inclined direction as a rotation axis, and a rotary drum that rotatably includes the rotary drum. An aquarium supported in a swingable manner in the machine casing, an informing means for informing an abnormality, an input setting means for setting an operation course, etc., and a control means for sequentially controlling each step of washing, rinsing and dehydration The control means determines whether or not a fixing bracket for fixing the water tub to the washing machine casing is removed when a predetermined input is made by the input setting means. When it is determined that the fixing bracket is not removed, the notification means notifies the abnormality.

  As a result, it is possible to prevent the rotating drum from being deformed or broken due to excessive amplitude or impact during transportation after shipment from the factory, and avoiding washing without removing the fixing bracket for preventing the rotation drum. Since the notification means appeals to the user that the is still attached, the user can be immediately noticed, and normal use of the drum type washing machine is promoted.

  The drum type washing machine of the present invention can prevent the rotating drum from being deformed during transportation and can be prevented from being used in a state where the fixing bracket is not removed.

  The first aspect of the present invention is a rotary drum that accommodates laundry and is rotationally driven with a horizontal direction or an inclination direction as a rotation axis. The rotary drum includes the rotary drum so as to be rotatable, and is supported swingably in a washing machine casing. A water tank, an informing means for informing an abnormality, an input setting means for setting an operation course and the like, and a control means for sequentially controlling each step of washing, rinsing and dehydration, the control means comprising the input setting When a predetermined input is performed by the means, it is determined whether or not a fixing bracket for fixing the water tub to the washing machine casing is removed, and the fixing bracket is not removed. When the determination is made, it is possible to prevent the rotating drum being transported from being deformed and to be used in a state where the fixing bracket is not removed by notifying the abnormality by the notification means.

  According to a second aspect of the invention, the drum-type washing machine of the first aspect of the invention is provided with position detecting means provided below the water tub to detect the position of the water tub, and the control means fixes the water tub to the washing machine casing. By using the position detection means to determine whether or not the fixing bracket to be removed has been removed, the position detection means detects the sinking amount of the water tank, and using the detected result, the fixing bracket is Since it can be determined whether or not it is removed, it is possible to prevent the rotating drum from being deformed during transportation and to prevent it from being used in a state where the fixing bracket is not removed.

  According to a third aspect of the invention, in particular, the drum type washing machine of the first or second aspect of the invention is provided with a storage device, and further includes storage means for storing information, and the control means uses a position detection means to remove the fixture. The position of the water tank is detected, the detected first position information is stored in the storage means, and when a predetermined input is made by the input setting means, the position detection means is used to By detecting the position and comparing the detected second position information with the first position information stored in the storage means to determine whether or not the fixing bracket is in a removed state. Whether the fixing bracket is removed by detecting and comparing the amount of sinking of the water tank when it is not fixed by the fixing bracket and the amount of sinking of the tank during installation or use Can be determined Runode, the deformation of the rotating drum during transportation can be prevented that the fixing bracket can be prevented is used in a state that is not removed.

  In the fourth aspect of the invention, in particular, when the fixing bracket of the drum type washing machine according to the first to third aspects of the invention is attached, the water tank is pulled up more than when the fixing bracket is removed. Therefore, it can be detected by the position detection means whether or not the fixing bracket is attached more accurately.

  The fifth aspect of the invention is particularly useful when the notification means of the drum type washing machine of the first to fourth aspects of the present invention is configured to notify the abnormality until the switch for turning off the power is pressed or the power outlet is disconnected. Anomaly notification can continue until the person notices.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a side sectional view of a drum-type washing machine according to Embodiment 1 of the present invention.

  In FIG. 1, a water tank unit 7 accommodates a metal rotating drum 2 in a resin water tank 3, and supports and rotates a rotating shaft 2 a of the rotating drum 2 with a bearing 68 provided on the back surface of the water tank 3. A drum drive motor 5 is connected to the shaft 2a.

  The aquarium unit 7 is disposed in the washing machine casing 6 so as to be inclined upwardly, and has a lower support fitting 74 fixed to the lower part of the aquarium 3 and a support fixed to the base of the washing machine casing 6. A pair of left and right anti-vibration dampers 70 are disposed between the base 73 and the base 73 to support the base 73. Further, since heavy components such as the bearing 68 and the drum drive motor 5 are attached to the rear side, the center of gravity position is closer to the rear side, and the anti-vibration damper 70 places the water tank unit 7 on the front side from the center of gravity position. The balance of the aquarium unit 7 is in a state of falling to the back side because it is supported on the lower side, and in order to correct this, a metal made of metal fixed to the upper part of the aquarium 3 with a plurality of screws 98 over a wide range. A first coil spring 71 is installed between the upper support fitting 75 and the upper surface of the washing machine casing 6 to urge the water tank unit 7 toward the front side and the upper side. In addition to the first coil spring 71, a second coil spring 72 is installed between the back surface of the water tank unit 7 below the support height position by the vibration damping damper 70 and the back surface of the washing machine housing 6. Further, a displacement sensor 36 is attached between the lower support metal fitting 74 and a support base 73 fixed to the base of the washing machine housing 6, which is located in the vicinity of the vibration damper 70.

  FIG. 2 is a diagram showing a restraint structure of the drum type washing machine in the first embodiment of the present invention.

  As shown in FIGS. 1 and 2, a plurality of bosses 3a are provided over a wide range on the upper part of a resin water tank 3, and a plurality of screws 98 are fixed to the plurality of bosses 3a. A water tank fixing portion 97 is formed by cutting and raising a part of the upper support fitting 75, and a screw hole 97b is provided in a connecting portion 97a formed in parallel to the back surface of the washing machine casing 6 of the water tank fixing portion 97, and washing is performed. A fixing bracket 83 formed by bending a strip-shaped plate material into a square shape is detachably attached to the back surface of the machine casing 6, and a fixing bolt 86 is passed through the fixing bracket 83 from the back side of the washing machine casing 6. ing.

  When restraining the water tub unit 7 when the drum type washing machine 1 is moved, if the fixing bolt 86 is rotated and advanced, the tip of the fixing bolt 86 is screwed into the screw hole 97b provided in the connecting portion 97a, and the connecting portion 97a is fixed. The water tank unit 7 is fixed to the back surface of the washing machine casing 6 in close contact with the metal fitting 83, and the floating state of the water tank unit 7 is restricted. When releasing the restraint state of the aquarium unit 7, if the fixing bolt 86 is rotated in the direction of coming out of the screw hole 97 b, the water tank fixing part 97 is separated from the fixing fitting 83 when the fixing bolt 86 comes out of the screw hole 97 b. 7 is released, and then the fixture 83 is removed from the back of the washing machine casing.

  Since the metal upper support fitting 75 is fixed to the upper part of the resin water tank 3 with a plurality of screws 98 over a wide range, when the drum-type washing machine 1 is moved, Even if a force is applied to the support fitting 75, the upper support fitting 75 is made of metal and thus is not damaged. Further, the stress concentration applied to the water tank 3 can be reduced, and the resin water tank 3 is also damaged. Therefore, the strength of the drum type washing machine 1 when moving can be ensured. In addition, after being transported and installed in the user's house, the fixing bolt 86 is loosened and the fixing bracket 83 is removed together with the user or a vendor engaged in sales, so that the aquarium unit 7 is slightly sunk. Move to the closed position. In this state, normal washing with less vibration is performed.

  In addition, as indicated by the phantom line in FIG. 2, a cover 87 that covers the hole after the fixing bracket 83 is removed is provided on the outer rear side of the washing machine housing 6 so that the finger can be opened and closed. Can be prevented. Moreover, the restraint structure shown in FIG. 2 is more reliably restrained of the water tank unit 7 by forming in two or more places on right and left.

  FIG. 3 is a cross-sectional view of the displacement sensor (position detecting means) 36 of the drum type washing machine in the first embodiment of the present invention.

  The displacement sensor 36 includes a lower mounting plate 46 that is fixed to the support base 73, an upper mounting plate 47 that is fixed to the lower support bracket 74, a detection coil unit 40 that is mounted to the lower mounting plate 46 via the universal joint 44, and an upper portion. The displacement rod portion 41 is attached to the attachment plate 47 via a universal joint 45. The rod body 43 of the displacement rod portion 41 is inserted in a cylinder body 58 provided coaxially with the central axis in the detection coil portion 40 so as to freely advance and retract.

  Each of the upper mounting plate 47 and the lower mounting plate 46 is provided with an engaging piece 54 and a locking projection 55, and the lower mounting plate 46 is attached to the support base 73 depicted in FIG. Is also fixed to the lower support fitting 74.

  Three cylinders 58, 59a, 59b and 59c from the top are integrally formed on the cylinder body 58 constituting the detection coil unit 40, and a primary winding 61 is provided between the upper two flanges 59a and 59b. The secondary winding 62 is wound between the lower two 59b and 59c. The wire ends of each winding are connected to the connection member 64 embedded in the upper two flanges 59a and 59b, and further connected to the electrode of the connector 65 via the connection line 66. The cylinder body 58, the primary and secondary windings 61 and 62, and the connector 65 are held and fixed in a waterproof structure by the polypropylene thin lower cover 110, the same upper cover 120 and the O-ring 102. These constitute the detection coil unit 40.

  The displacement rod portion 41 includes a rod body 43 that is a bottomed cylindrical container, a ferrite (magnetic body) 42 housed therein, a resin spacer 48, a pressing spring 49, and a cap 50 that serves as a lid for the rod body 43. Is done. The upper half of the cap 50 is a spherical body 45 a constituting the universal joint 45. The outer diameter of the rod body 43 is slightly smaller than the inner diameter of the cylinder body 58, and the resin forming both is made of, for example, polyacetal and the other is made of polyamide so that sliding friction is reduced.

  FIG. 4 is a circuit diagram of a portion related to the displacement sensor 36 of the drum type washing machine in the first embodiment of the present invention.

  From the left side of the figure, the output of the triangular wave generator 130 composed of two operational amplifiers is connected to the primary winding 61 of the displacement sensor 36 via a buffer 131 composed of one operational amplifier and a transistor. An output terminal 133 is connected to the output side of the secondary winding 62 via a rectification and smoothing circuit 132, and the voltage output from the secondary winding 62 is converted into a DC value by the rectification and smoothing circuit 132, Output from the output terminal 133.

  An output terminal 135 is also connected via a DC amplifier 134 which branches from the rectifying and smoothing circuit 132 and is composed of one operational amplifier.

  The elongated rectangle drawn through the two windings of the primary winding 61 and the secondary winding 62 is the above-described ferrite 42, and the arrow means that it moves up and down. As estimated from this figure, when the ferrite 42 is inserted deeply, the coupling between the two windings becomes dense, and the voltage value output from the output terminal 133 becomes a larger value.

  When the aquarium unit 7 swings three-dimensionally, the ferrite 42 moves between the two windings 61 and 62. Since the triangular wave generator 130 and the buffer 131 shown in FIG. 4 are connected to the primary winding 61 and the ferrite 42 is positioned through the primary winding 61 and the secondary winding 62, both windings 61, 62 are provided. And the ferrite 42 have a kind of transformer function, and the coupling changes corresponding to the position of the ferrite 42. An alternating current (triangular wave) voltage corresponding to the amount of movement of the ferrite 42, in other words, the oscillation amplitude of the water tank unit 7, is generated in the secondary winding 62, and a pulsating current is generated at the output terminal 133 via the rectifying and smoothing circuit unit 132. appear. Therefore, this pulsating flow corresponds to the swinging of the water tank unit 7.

  By inputting this pulsating flow to the control means 20, the above-described fine control is realized. That is, when the displacement sensor 36 is not used, so-called open control and sequential control are performed, and control is performed without grasping the vibration amount, so that precise control is limited to a limited range. On the other hand, if the displacement sensor 36 is used, so-called feedback control becomes possible, and control can be performed while observing the vibration amount itself. Therefore, precise control is possible in a wide range of situations, and high-speed rotation is realized while minimizing vibration. It can be done.

  The displacement sensor 36 not only responds to swinging but also reacts to the weight of the laundry put inside the rotating drum 2.

  Here, a cloth amount detection method using the displacement sensor 36 will be described. In an empty state where the laundry is not accommodated in the rotating drum 2 (the position of the water tub 3 in this state is referred to as a reference position), the lower end of the ferrite 42 is set to be substantially the same position as the lower end of the primary winding 61. Yes. At this time, the output signal of the secondary winding 62 of the displacement sensor 36 is a constant value because there is no movement of the ferrite 42, and is rectified and smoothed by the rectifying and smoothing circuit 132. A voltage output Vo (for example, 2V) corresponding to the position is obtained. Next, when the laundry is stored in the rotating drum 2, the water tank 3 sinks from the reference position (for example, 2 mm), so that the displacement rod portion 41 of the displacement sensor 36 descends in the detection coil portion 40 and the ferrite 42. The position of changes. Thereby, since the output signal of the secondary winding 62 changes, the voltage Vn output from the output terminal 133 also changes (for example, 2.5V).

  FIG. 5 shows the difference between the output voltage value Vn obtained from the output terminal 133 connected to the secondary winding 62 and the output voltage value Vo when the water tub 3 is at the reference position ( It is a graph which shows the relationship between Vn-Vo) and the quantity (cloth quantity) of the laundry. The amount (for example, 4 kg) of the stored laundry can be measured from the difference between Vn and Vo described above (for example, 2.5-2 = 0.5 V) using FIG. Note that the relationship between (Vn−Vo) and the amount of laundry shown in FIG. 5 depends on the spring constant of the coil spring mechanism (not shown) of the vibration damping damper 70 and the hardness of the cushioning material (not shown). It changes and is not limited to the relationship shown in FIG.

  FIG. 6 is a circuit diagram of the entire washing machine including the part of FIG. 4 of the drum type washing machine according to Embodiment 1 of the present invention.

  The AC drive 31 is rectified by a rectifier 32, and the drum drive motor 7 is rotationally driven by the inverter circuit 26 using the DC power smoothed by the smoothing circuit comprising the choke coil 33 and the smoothing capacitor 34 as well as input setting means. 21, the rotation of the drum drive motor 5 is controlled on the basis of the operation instruction input from 21 and the monitoring information of the operation state detected by each detection means, and the water supply valve 14, the drain valve 13, the blower fan 17 The operation of the heater 18 is controlled.

  The drum drive motor 5 includes a stator having three-phase windings 5a, 5b, and 5c, and a rotor having a two-pole permanent magnet, and is configured as a DC brushless motor provided with three position detection elements 24a, 24b, and 24c. Then, the rotation is controlled by the PWM control inverter circuit 26 constituted by the switching elements 26a to 26f. The rotor position detection signals detected by the position detection elements 24a, 24b, and 24c are input to the control means 20, and the on / off states of the switching elements 26a to 26f are PWM-controlled by the drive circuit 25 based on the rotor position detection signals. As a result, energization of the three-phase windings 5a, 5b, and 5c of the stator is controlled to rotate the rotor at a required rotational speed. A displacement sensor 36 and a nonvolatile memory (for example, EEPROM) 140 are connected to the control means 20.

  FIG. 7 is a front view showing display means (notification means) 35 and input setting means 21 of the drum type washing machine in Embodiment 1 of the present invention.

  The figure shows two large rectangles nested, but the inside of the inner rectangle is a display unit (means) 35, and a light emitting element such as an LED is provided in the back in correspondence with the lexical, almost in the center. The arranged number display part 35a is used for time display, remaining time display, and the like. On the other hand, the outside of the inner rectangle that surrounds the display unit 35 is the input setting means 21, and a push switch is provided correspondingly behind a lexical circle or a single circle. However, not only the push switch but also the elongated rectangle in the figure are drawn behind the four squares arranged in the middle and the left, the washing switch 21d, the rinsing switch 21e, the dehydrating switch 21f and the drying switch 21g from the left. The light emitting element is provided in the part, and this is also the display portions 35b, 35c, 35d, and 35e. The two squares “ON” and “OFF” drawn at the right end of the input setting unit 21 are power switches 21 a that are pressed when the entire washing machine is turned on or off, and the “Start / "Pause" is a start switch 21b that is pressed when washing is started and when washing is temporarily stopped. The “course” arranged on the left side of the start switch 21b selects a washing course such as “Random”, “High temperature sterilization”, “My style”, “Bath washing” displayed on the course display portion 35f. The course switch 21c.

  Hereinafter, a method for determining whether or not the fixing bracket 83 has been removed using the displacement sensor 36 will be described.

  When the fixing bracket 83 is attached, the water tank unit 7 is fixed in a slightly lifted state, so that the distance between the support base 73 and the lower support bracket 74 is the state in which the fixing bracket 83 is removed. Larger than Further, in a state where the fixing bracket 83 is removed and the laundry is put in, the distance is reduced corresponding to the load of the laundry. Since the displacement sensor 36 has a function of outputting a voltage corresponding to this distance as described above, the fixed metal fitting 83 is attached or removed depending on the output voltage value from the displacement sensor 36. Can be determined.

  Here, a method for obtaining a threshold value for determining whether the fixing bracket 83 is attached or removed will be described. In the assembly and adjustment process at the factory, the displacement sensor 36 measures the amount of sinking of the water tank 3 before the fixing bracket 83 is attached and the laundry is not accommodated, and the detected voltage value is obtained. The empty weight data H is recorded in the memory (storage means) 140. The memory 140 is a non-volatile memory (for example, EEPROM) that keeps storing information even when the power is not supplied, and the empty weight data H is stored without being erased even during transportation.

  When the laundry is accommodated with the fixing bracket 83 removed, the aquarium unit 7 sinks further than the empty state, and the voltage value W detected by the displacement sensor 36 in that state should be equal to or greater than the empty weight H. is there. On the other hand, in the state where the fixture 83 is attached, the water tank unit 7 is lifted slightly upward as described above, and the insertion of the ferrite 42 becomes shallow, so that the voltage value W of the output terminal 133 is smaller than the empty weight H. . Based on these, the threshold value is calculated by subtracting a predetermined value from the empty weight H. The predetermined value is set so that the threshold value is set in the vicinity of the middle of the voltage decrease value due to the mounting of the fixing bracket 83, and does not erroneously determine whether or not the fixing bracket 83 is mounted in consideration of mass production. It is set to.

  Next, the operation and action of the drum type washing machine in Embodiment 1 of the present invention will be described. FIG. 8 is a program flowchart of the microprocessor mounted on the control means 20, wherein (a) shows a flowchart at the time of assembly adjustment at the factory, and (b) shows a flowchart of the normal washing process.

  First, the adjustment process in the factory will be described with reference to FIG.

  In step 801, the assembly process is energized and the adjustment process is started.

  In step 802, the voltage output from the secondary winding 62 at the position of the empty water tank 3 by the displacement sensor 36 through the output terminal 133 is measured, and the value is set to H.

  In step 803, H is stored in the memory 140, and in step 804, the adjustment process in the factory is terminated.

  In addition, after the adjustment process is completed, the fixing bracket 83 is attached and shipped from the factory.

  Next, when the drum-type washing machine according to the first embodiment of the present invention is normally used over the user's hand, it is determined whether or not the fixing bracket 83 is removed, and if it is not removed, a notification is given. The process will be described with reference to FIG.

  In step 811, the power cord is inserted into an outlet so that the control circuit 25 can accept the switch. In step 812, when the power switch 21 a of the input setting unit 21 is pressed, in step 813, the control unit 20 sends a signal to the display means 35 and the load drive means 37 to turn on (ON) a relay element for turning on / off the display LED, various motors, or the like, or a switching element such as a triac or transistor. For example, the relays or switch elements corresponding to the display units 35b to 35e provided for “Random”, “Dehydration”, “Rinse”, and “Washing” of the course display unit 35f are turned ON.

  When the start switch 21b is pressed in step 814, the process proceeds to step 815. In step 815, the displacement sensor 36 is used to measure the sinking amount of the water tub 3 in a state where the laundry is stored as a voltage value, and the value detected by the displacement sensor 36 is stored in the memory 140 as W.

  In step 816, H indicating the sinking amount of the empty aquarium 3 containing no laundry is read from the memory 140, and in step 817, a predetermined value (for example, 8-bit A / 30) is subtracted by the 256 divided voltage of the D conversion circuit, and the obtained value is stored in the memory 140 as K. In step 818, the two values stored in the memory 140, the values of W and K, are compared. If W is greater than K, it is determined that the fixture 83 has been removed, and the process proceeds to step 824. In step 824, a washing course such as washing, rinsing, and dehydration is executed. In step 825, the washing process is terminated.

  If it is determined in step 818 that W is smaller than or equal to K, the process proceeds to step 819. In Step 819, a predetermined character (for example, U10 (U means an initial of the user User and has a meaning to appeal to the user's misuse)) is displayed on the numeric display unit 35a, and the user is displayed. Is informed that the fixture 83 has not been removed, and the process proceeds to step 820.

  In step 820, all relays and switch elements are turned OFF except for those necessary for U10 display by the number display unit 35a in step 819. In step 821, when the “OFF” switch of the power switch 21a is pressed or a power outlet (not shown) is removed, the power is turned off in step 822, and the process ends in step 823.

  Thereby, by attaching the fixing bracket 83 to the water tank 3, it is possible to prevent the rotating drum from being deformed during transportation, and it is possible to prevent the fixing bracket 83 from being used in an attached state. Abnormal vibration and noise can be suppressed.

  In the first embodiment, the output of the output terminal 133 is used as the output of the displacement sensor 36, but the output of the output terminal 135 may be used. In that case, since a voltage larger than that of the output terminal 133 is output to the output terminal 135, the predetermined value for obtaining the threshold value must be a small value. In the case of using a 10-bit A / D conversion circuit and a 1024 division circuit, the predetermined number is naturally different, but it may be set to a value that does not erroneously determine whether or not the fixing bracket 83 has been removed.

  In the first embodiment, the threshold value K is obtained during the washing process, but it may be obtained in advance during the assembly, adjustment process, and the like.

  Moreover, as a mounting position of the fixing metal 83, a position where the water tank unit 7 is not pulled up as in the first embodiment, or a position where the water tank unit 7 is not changed may be selected.

  In the first embodiment, the displacement sensor 36 is used to determine whether or not the fixing bracket 83 is attached. However, the detection is based on whether or not the fixing bracket 83 is attached. As long as the sensor changes in value, the same effect can be obtained with any sensor.

  Further, in the first embodiment, the display means is used as a means for notifying that the fixing bracket 83 is attached. However, the display means may be a device that emits sound or light, and may be a means for notifying the user. That's fine.

  As described above, the drum-type washing machine according to the present invention is useful as a washing machine or the like because vibration generation can be suppressed as much as possible during washing and water tank deformation can be prevented during shipping and transportation.

Side sectional view of the drum-type washing machine according to the first embodiment of the present invention. The figure which shows the restraint structure of the drum type washing machine Sectional view of displacement sensor of the drum type washing machine Circuit diagram around the displacement sensor of the drum type washing machine Graph showing the relationship between the voltage output from the secondary winding of the drum type washing machine and the amount of laundry Circuit diagram of the drum type washing machine Front view of input setting means and display means of the drum type washing machine (A) Program flow chart during assembly adjustment of the control means for the drum type washing machine at the factory (b) Program flow chart for normal washing process of the control means for the drum type washing machine

Explanation of symbols

2 Rotating drum 3 Water tank 21 Input setting means 35 Display means (notification means)
36 Displacement sensor (position detection means)
83 Fixing bracket

Claims (5)

A rotating drum that stores laundry and is driven to rotate about a horizontal or inclined direction as a rotation axis, a water tank that rotatably includes the rotating drum and is supported so as to be swingable within a washing machine housing, and reports an abnormality. Notification means, input setting means for inputting the operation course and the like, and control means for sequentially controlling each process of washing, rinsing, and dehydration, the control means receiving predetermined input by the input setting means. When it is carried out, it is determined whether or not the fixing bracket for fixing the water tub to the washing machine casing is removed, and when it is determined that the fixing bracket is not removed, A drum-type washing machine, wherein an abnormality is notified by a notification means. Position detecting means is provided below the water tank and detects the position of the water tank, and the control means detects whether or not a fixing bracket for fixing the water tank to the washing machine casing is removed. A drum-type washing machine, characterized in that determination is made using means. Storage means for storing information, and the control means detects the position of the water tank in a state in which the fixture is removed using the position detection means, and stores the detected first position information in the storage means. When a predetermined input is made by the input setting means, the position detection means is used to detect the position of the water tank, and the detected second position information and the first position stored in the storage means 3. The drum type washing machine according to claim 2, wherein it is determined whether or not the fixing bracket has been removed by comparing with information. The water tank is pulled up upwards when the fixing bracket is attached than when the fixing bracket is removed. The drum type washing machine as described. The drum type washing machine according to any one of claims 1 to 4, wherein the notifying means notifies the abnormality until a switch to turn off the power is pressed or the power outlet is disconnected.