JP2017046968A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine capable of suppressing damage of a string-like component extending out of a washing tub and connected to components other than the washing tub.SOLUTION: A washing machine 1 includes: a washing tub 3 rotatable so that an axis line J crosses with respect to the vertical direction Z; and a string-like component 42 extending out from a lower part 3A of the washing tub 3 and connected to the component other than the washing tub 3. A rotary shaft 14 which is the rotation center of the washing tub 3 is at a position lower than the center C of the washing tub 3 in the axial direction D of the washing tub 3 or the center of gravity G2 of the washing tub 3.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a washing machine.

  In the washing / drying machine described in Patent Literature 1 below, an outer tub portion in which a rotating tub portion into which laundry is put is incorporated is supported by a rotation support plate via an inclined rotation support shaft. A rotation driving motor for rotating the rotating tub portion is fixed to the bottom of the outer tub portion. The rotation support plate is supported by the outer frame of the washing / drying machine via the hanging rod. A rotating wire attaching portion is provided in the outer tub portion, and a wire connected to the rotating wire attaching portion is wound around a winding drum of an inclined turning motor provided in the outer frame. As the wire moves up and down according to the rotation of the tilt rotation motor, the outer tub portion tilts and rotates around the tilt rotation support shaft. Thereby, when putting laundry into a rotation tub part, an outer tub part can be inclined sideways, and an outer tub part can be made into a vertical shape along the vertical direction at the time of easy washing and dehydration.

JP-A-4-166196

  In the washing and drying machine described in Patent Document 1, a string-like component such as a wiring for supplying electric power to the rotation drive motor and a drain pipe for draining water accumulated in the outer tub portion is formed by the outer tub portion and the outer frame. It is assumed that it is provided so that Such a string-like component is generally provided with a certain degree of slackness in consideration of the vibration of the outer tub during washing and dehydration. In particular, in the configuration in which the outer tub portion is tilted and rotated as in the washing and drying machine described in Patent Document 1, it is assumed that the slack of the string-like component is increased according to the size of the rotation range of the outer tub portion. The However, string-like parts with large slack may be damaged by interference with surrounding parts such as a rotary drive motor.

  The present invention has been made under such a background, and an object of the present invention is to provide a washing machine capable of suppressing damage to string-like parts extending from a washing tub and connected to parts other than the washing tub.

  The present invention relates to a cylindrical washing tub for storing laundry, the washing tub being rotatable so that its axis intersects the vertical direction, and the laundry tub extending from the lower portion of the washing tub And the center of rotation of the washing tub is lower than the center of the washing tub in the axial direction of the washing tub or the center of gravity of the washing tub. , A washing machine.

  Further, the present invention includes a support portion that rotatably supports the washing tub, and the string-like component extends from a lower portion of the washing tub and is connected to a lower end portion of the support portion. And

  In addition, the present invention includes a housing that houses the washing tub and an electrical component fixed to a lower portion of the washing tub, and the string-shaped component is a wiring that extends from the electrical component, The housing is connected to a portion located higher than the electrical component.

  The present invention also provides a cylindrical washing tub for storing laundry, the washing tub being rotatable so that its axis intersects the vertical direction, and the washing tub from the lower portion of the washing tub. And a string-like part that extends to the outside of the washing tub through the rotation center or around the rotation center and is connected to a part other than the washing tub.

  Moreover, this invention includes the fixing | fixed part which fixes at least one place in the middle of the said string-shaped components to the said washing tub.

According to the present invention, in the washing machine, the cylindrical washing tub is rotatable so that its axis intersects the vertical direction, and the string-like component extending from the lower portion of the washing tub is Connected to parts other than the tank.
In this configuration, the rotation center of the washing tub is at a position lower than the center of the washing tub in the axial direction of the washing tub or the center of gravity of the washing tub. In other words, the rotation center of the washing tub is disposed in a biased manner toward the lower side where the string-like component is located in the washing tub. In this case, the rotation range of the lower part of the washing tub when the washing tub is rotated can be reduced. Thereby, since the slack of the string-like part extended from the lower part of the washing tub can be suppressed small, the string-like part becomes difficult to interfere with surrounding parts. As a result, damage to the string-like component can be suppressed.

  Moreover, according to this invention, the string-shaped component extended from the lower part of the washing tub is connected to the lower end part of the support part which supports a washing tub rotatably. In this case, in the string-like component, the portion connected to the lower portion of the washing tub and the portion connected to the support portion are arranged close to each other in the vertical direction. Thereby, the movement range of the string-like component when the washing tub is rotated can be suppressed small. For this reason, the slack of the string-like parts from the lower part of the washing tub to the lower end of the support part can be suppressed small, and the string-like parts are less likely to interfere with surrounding parts. As a result, damage to the string-like component can be suppressed.

  Further, according to the present invention, the string-like component that is a wiring extending from the electrical component fixed to the lower portion of the washing tub is connected to a portion that is higher than the electrical component in the housing that houses the laundry tub. The In this case, the string-like component is arranged apart from the electric components around the string-like component between the casing and the electric component, so that the string-like component is less likely to interfere with the electric component. As a result, damage to the string-like component can be suppressed.

Further, according to the present invention, in the washing machine, the tubular washing tub is rotatable so that its axis intersects the vertical direction, and the string-like component extending from the lower portion of the washing tub is provided. Connected to parts other than the washing tub.
In this configuration, the string-like component extends out of the laundry tub through the rotation center of the laundry tub or around the rotation center. That is, the string-like component extends from a portion that hardly moves in the rotating washing tub and is connected to a component other than the washing tub. Thereby, the movement range of the string-like component when the washing tub is rotated can be suppressed small. For this reason, the slack of the string-like component can be suppressed, and the string-like component is less likely to interfere with surrounding components. As a result, damage to the string-like component can be suppressed.

  Further, according to the present invention, since at least one place in the middle of the string-like component is fixed to the washing tub by the fixing portion, the moving range of the string-like component when the washing tub rotates can be further reduced. . Therefore, the slack of the string-like component can be further reduced, and the string-like component is less likely to interfere with surrounding components. As a result, damage to the string-like component can be further suppressed.

FIG. 1 is a schematic perspective view of a washing machine according to an embodiment of the present invention. FIG. 2 is a left side view of the main part of the washing machine in a state where the washing tub is upright. FIG. 3 is a left side view of a main part of the washing machine in a state where the washing tub is inclined. FIG. 4 is a left side view of the main part of the washing machine according to the first modification in a state where the washing tub is upright. FIG. 5 is a left side view of the main part of the washing machine according to the first modification in a state where the washing tub is inclined. FIG. 6 is a longitudinal sectional front view of the washing machine according to the second modification. FIG. 7 is a longitudinal sectional front view of a washing machine according to a third modification.

  Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a schematic perspective view of a washing machine 1 according to an embodiment of the present invention. The up-down direction in FIG. 1 is referred to as the up-down direction Z of the washing machine 1, the left-right direction in FIG. The vertical direction Z is also the vertical direction. In the vertical direction Z, the upper side is referred to as the upper side Z1, and the lower side is referred to as the lower side Z2. In the front-rear direction Y, the right side in FIG. 1 is referred to as a front side Y1, and the left side in FIG. 1 is referred to as a rear side Y2. In the left-right direction X, the front side of the paper surface of FIG. 1 is referred to as a left side X1, and the back side of the paper surface of FIG. 1 is referred to as a right side X2.

  The washing machine 1 includes a washing machine having a drying function. Hereinafter, the washing machine 1 will be described by taking a washing machine in which the drying function is omitted and only a washing operation is performed as an example. The washing operation includes a washing process, a rinsing process, and a dehydrating process. The washing machine 1 includes a housing 2, a washing tub 3 accommodated in the housing 2, a support portion 4, a suspension bar 5, a rotation portion 6, a lock release mechanism 7, and a drive mechanism 8.

  The housing | casing 2 is metal, for example, and is formed in a box shape. The housing 2 is provided with a connecting surface 2C that connects the front surface 2A and the upper surface 2B. The connecting surface 2C is, for example, an inclined surface that descends toward the front side Y1. An entrance (not shown) for putting laundry in and out of the washing machine 1 is formed across the front surface 2A and the connecting surface 2C.

  The washing tub 3 has a cylindrical overall shape and includes an outer tub 10 and an inner tub 11. The outer tub 10 is made of resin, for example, and is formed in a bottomed cylindrical shape. In the washing process and the rinsing process, water is stored in the outer tub 10. A virtual straight line passing through the center of the circle of the outer tub 10 is the axis J of the outer tub 10. The bottomed cylindrical outer tub 10 includes a substantially cylindrical circumferential wall 12 disposed along the axis J, and a disk-shaped bottom wall 13 that blocks the hollow portion of the circumferential wall 12 from the lower side Z2 along the axis J. And have. A circular opening 10 </ b> A surrounded by the upper edge of the circumferential wall 12 is formed at the upper end of the washing tub 3 opposite to the bottom wall 13. The opening 10 </ b> A allows the laundry to be taken in and out of the washing machine 1 to pass through. On the left and right side surfaces of the circumferential wall 12, one metal rotation shaft 14 protruding outward in the left-right direction X is provided. In FIG. 1, only the rotation shaft 14 on the left side X1 is shown. The pair of left and right rotating shafts 14 are arranged at the same position when viewed in the left-right direction X.

  The inner tank 11 is made of metal, for example, and is formed in a bottomed cylindrical shape that is slightly smaller than the outer tank 10. The inner tub 11 stores laundry. A circular opening 11 </ b> A through which the laundry stored in the inner tub 11 passes is formed at the upper end of the inner tub 11 opposite to the bottom wall (not shown). The inner tank 11 is accommodated coaxially in the outer tank 10. Therefore, the axis of the inner tank 11 is the axis J described above. The axis J is also the axis of the entire washing tub 3. A direction in which the axis J extends is referred to as an axial direction D of the washing tub 3. In a state where the inner tank 11 is accommodated in the outer tank 10, the opening 11 </ b> A of the inner tank 11 is positioned inside the opening 10 </ b> A of the outer tank 10. The opening 10 </ b> A and the opening 11 </ b> A face the entrance / exit (not shown) of the housing 2, whereby laundry can be taken in and out of the inner tub 11. A plurality of through holes 11C are formed in the circumferential wall 11B and the bottom wall of the inner tank 11, and the water in the outer tank 10 passes between the outer tank 10 and the inner tank 11 through these through holes 11C. it can. Therefore, the water level in the outer tank 10 and the water level in the inner tank 11 coincide. In the washing operation, the inner tub 11 rotates around the axis J by receiving a driving force from a motor 15 (see FIG. 2 described later) provided in the housing 2.

  The support portion 4 is made of metal and includes a pair of left and right side plates 16 and a beam member 17 installed between the lower ends of the side plates 16. Each side plate 16 is formed in a substantially rectangular shape when viewed from the left-right direction X and is thin in the left-right direction X. The washing tub 3 is arranged between the pair of side plates 16.

  In the outer tub 10 of the washing tub 3, the rotation shaft 14 protruding to the left side X1 passes through the side plate 16 of the left side X1, and is rotatably supported by the side plate 16 of the left side X1 via a bearing (not shown). The In the outer tub 10, a rotation shaft 14 (not shown) protruding to the right side X2 passes through the side plate 16 of the right side X2, and is supported rotatably by the side plate 16 of the right side X2 via a bearing (not shown). Is done. Thereby, the washing tub 3 is supported by the support part 4 and can be rotated around the rotation shaft 14 so that the axis line J intersects the vertical direction Z. Specifically, the washing tub 3 rotates with the motor 15 (see FIG. 2), and the axis J is inclined in the front-rear direction Y with respect to the up-down direction Z. The rotation direction of the washing tub 3 is referred to as a rotation direction K. A portion of the circumferential wall 12 of the outer tub 10 on the side of the bottom wall 13 with respect to the rotating shaft 14 in the axial direction D and the bottom wall 13 constitute a lower portion 3A of the washing tub 3.

  An acute intersection angle between a virtual reference axis L extending along the vertical direction Z and the axis J is a rotation angle θ of the washing tub 3 with respect to the reference axis L. As the rotation angle θ is smaller, the washing tub 3 is closer to an upright posture, and as the rotation angle θ is larger, the opening 10A of the outer tub 10 and the opening 11A of the inner tub 11 face the front side Y1. In addition, the posture is inclined toward the front side Y1. For example, the rotation angle θ can be changed in five stages of 0 degree, 15 degrees, 30 degrees, 45 degrees, and 60 degrees. In this case, as an example of operation in the washing machine 1, when the laundry is put into the washing tub 3 at the start of the washing operation, the rotation angle θ is set to 45 degrees so that the laundry can be easily put in. Thereafter, when the load amount of the laundry is detected or when water is supplied to the washing tub 3, the rotation angle θ is set to 0 degree. And in the washing process and the rinsing process, in order to promote the replacement of the position of the laundry in the inner tub 11 and realize effective washing and rinsing, the rotation angle θ is between 0 degree and 60 degrees. Set to vary.

  An opening 16 </ b> A that penetrates the side plate 16 in the left-right direction X is formed in a region of the left side X <b> 1 on the lower side Z <b> 2 of the rotation shaft 14. The opening 16A is formed in a substantially rectangular shape that is long in the front-rear direction Y. Receiving portions 18 projecting outward in the front-rear direction Y are provided at the front edge and the rear edge of each side plate 16. The receiving part 18 may be integrally formed with the side plate 16 or may be attached to the side plate 16 as a separate resin part, for example.

  The suspension rod 5 is formed in a rod shape having a friction damper 19 at the lower end. There are four suspension rods 5, and one suspension rod 5 is arranged at each of the four corners in a plan view as viewed from the upper side Z <b> 1 in the housing 2. These hanging rods 5 are in a state of being hung from the upper part of the housing 2, specifically, from a metal outer frame (not shown) constituting a part of the housing 2. Of the two suspension rods 5 arranged on the left side X1 in the front-rear direction, the lower end portion of the suspension rod 5 on the front side Y1 is connected to the receiving portion 18 on the front side Y1 on the side plate 16 on the left side X1, and the suspension rod 5 on the rear side Y2 A lower end part is connected with the receiving part 18 of the rear side Y2 in the side plate 16 of the left side X1. Of the two suspension rods 5 arranged on the right side X2 in the front-rear direction, the lower end portion of the suspension rod 5 on the front side Y1 is connected to the receiving portion 18 on the front side Y1 in the side plate 16 on the right side X2, and the suspension rod 5 on the rear side Y2 ( The lower end portion of the right side X2 side plate 16 is connected to a receiving portion 18 (not shown) on the rear side Y2. Thereby, the support part 4 having the side plate 16, the washing tub 3 supported by the support part 4, and the motor 15 (see FIG. 2) for rotating the inner tub 11 are connected to the housing 2 via the suspension bar 5. It is elastically supported by.

  The rotating portion 6 is a metal plate formed in a substantially fan shape that is thin in the left-right direction X and bulges to the front side Y1 when viewed from the left-right direction X. The rotation part 6 has an outer peripheral edge 6A that is formed in an arc shape along the rotation direction K and bulges to the front side Y1. A through hole 6 </ b> B that penetrates the turning part 6 in the left-right direction X is formed at a position that coincides with the center of curvature of the outer peripheral edge 6 </ b> A in the turning part 6. In the outer peripheral edge 6A, a plurality of, here, five concave portions 6C are formed. These recesses 6 </ b> C pass through the rotation part 6 in the left-right direction X while being recessed toward the through hole 6 </ b> B, and are arranged side by side in the rotation direction K. The interval between the adjacent recesses 6 </ b> C may be constant or may be different depending on the position of the rotation unit 6. In this embodiment, as the rotation angle θ is set to 0 degrees, 15 degrees, 30 degrees, 45 degrees, and 60 degrees, the interval between the other adjacent recesses 6C is uniformly 15 degrees. .

  The rotating unit 6 is disposed on the left side X1 with respect to the side plate 16 on the left side X1. A rotating shaft 14 that protrudes to the left side X1 in the outer tub 10 and penetrates the side plate 16 of the left side X1 is inserted into the through hole 6B of the rotating unit 6 and fixed to the rotating unit 6. Thereby, the rotation part 6 is connected to the outer tub 10 through the rotation shaft 14 so as to be integrally rotatable.

  In the rotating portion 6 in the posture shown in FIG. 1, the rear end of the outer peripheral edge 6 </ b> A is extended to the outside in the radial direction R of the rotating portion 6 around the lower Z <b> 2, specifically, the through hole 6 </ b> B. The installation portion 6D is integrally provided. In the extending portion 6D, a guide hole 6E that is long in the radial direction R and penetrates the extending portion 6D in the left-right direction X is formed. The guide hole 6E is at the same position in the vertical direction Z as the opening 16A of the side plate 16 on the left side X1, and always faces the opening 16A from the left side X1.

  The unlocking mechanism 7 is fixed to the left side surface of the side plate 16 of the left side X1. The lock release mechanism 7 includes a main body portion 21 provided with an actuator (not shown) configured by a solenoid or the like, and a lock portion 22 formed in a convex shape protruding from the main body portion 21 to the rear side Y2. The lock portion 22 is supported by the main body portion 21 so as to be slidable in the front-rear direction Y. When the actuator of the main body portion 21 is actuated, the lock portion 22 slides between an advanced position that has advanced to the rear side Y2 and a retracted position that has retracted to the front side Y1. The lock portion 22 in FIG. 1 is in the advanced position, and is in a state of being fitted in the recess 6C at the same position in the rotation direction K. Thereby, rotation of the rotation part 6 and the washing tub 3 is locked. In this state, when the lock part 22 is retracted to the retracted position, the lock part 22 is disengaged from the recess 6C, so that the rotation part 6 and the washing tub 3 are unlocked.

  The drive mechanism 8 includes a frame 23, a pair of support portions 24, a screw shaft 25, a motor 26, a coupling 27, a nut member 28, and a sensor 29.

  The frame 23 is formed by bending a metal plate, for example, in a crank shape, and is fixed to the side plate 16 from the right side X2 so as to cover the opening 16A of the left side X1 side plate 16 from the right side X2. The pair of support portions 24 are fixed to the frame 23 in a state where they are arranged apart from each other in the front-rear direction Y, and project from the frame 23 to the left side X1. The screw shaft 25 is formed in a columnar shape extending in the longitudinal direction Y, and a screw thread 25A extending in a spiral shape is formed in almost the entire outer peripheral surface of the screw shaft 25. The screw shaft 25 is rotatably supported by bearings 30 provided on the pair of front and rear support portions 24.

  The motor 26 is a general electric motor, and has an output shaft 31 that protrudes toward the rear side Y2 and is arranged coaxially with the screw shaft 25. The front end portion of the screw shaft 25 and the output shaft 31 are coupled by a coupling 27 so as to be integrally rotatable. Therefore, when the motor 26 is driven and the output shaft 31 rotates, the screw shaft 25 rotates integrally with the output shaft 31. The nut member 28 has an annular nut in which a spirally extending thread (not shown) is formed on the inner peripheral surface, and the thread and the thread 25A of the screw shaft 25 are screwed together. The screw shaft 25 is externally fitted. When the screw shaft 25 rotates in accordance with the drive of the motor 26, the entire nut member 28 moves along the front-rear direction Y that is the axial direction of the screw shaft 25 as the screw shaft 25 rotates. The nut member 28 is connected to the rotating part 6 through the connecting pin 32 by fixing the connecting pin 32 inserted into the extending part 6 </ b> D of the rotating part 6. Therefore, when the nut member 28 moves along the front-rear direction Y along with the rotation of the screw shaft 25, the rotation unit 6 rotates along with the washing tub 3 by being pulled in the front-rear direction Y by the nut member 28. To do.

  The sensor 29 is a sensor for detecting the rotation angle θ of the washing tub 3 from the position of the nut member 28 in the front-rear direction Y. As the sensor 29, an optical sensor such as a photosensor can be used. In this case, the sensors 29 are provided in the same number as the recesses 6 </ b> C in the rotation unit 6, and are fixed to the frame 23 in a state of being arranged in the front-rear direction Y. Each sensor 29 is formed with a groove 29A penetrating the sensor 29 in the front-rear direction Y. In the sensor 29, the detection light crosses the groove 29A in the vertical direction Z. The nut member 28 is provided with a lever-shaped detected portion 28A called a dog. When the rotation angle θ is 0 degree, 15 degrees, 30 degrees, 45 degrees, or 60 degrees, the detected part 28A is fitted into the groove 29A of any one sensor 29 and detected in the groove 29A. Block out light. Therefore, the group of five sensors 29 detects whether the rotation angle θ is 0 degree, 15 degrees, 30 degrees, 45 degrees, or 60 degrees.

  FIG. 2 is a left side view of the main part of the washing machine 1 in the state where the rotation angle θ described above is 0 degree, that is, the state where the washing tub 3 is upright. FIG. 3 is a left side view of the main part of the washing machine 1 in a state where the washing tub 3 is inclined, for example, in a state where the rotation angle θ is 60 degrees. Referring to FIG. 2, as described above, the motor 15 that generates the driving force for rotating the inner tub 11 is one of the electrical components included in the washing machine 1, and is attached to the bottom wall 13 of the outer tub 10. On the other hand, it is fixed from the lower side Z2. An output shaft (not shown) of the motor 15 is connected to the inner tank 11 via a transmission mechanism 33 such as a clutch mechanism. The center of gravity of the motor 15 is denoted by reference symbol G1. On the other hand, the center of gravity of the entire washing tub 3 is denoted by reference symbol G2. The center of gravity G2 may be the center of gravity of the washing tub 3 as in this embodiment, or the center of gravity of water, the laundry, and the laundry tub 3 in a state where water or laundry is accommodated in the washing tub 3. It may be.

  Even when the center of gravity G2 is defined as described above, the center of gravity G1 of the motor 15 and the center of gravity G2 of the washing tub 3 are arranged on the axis J of the washing tub 3. And the rotation axis | shaft 14 which is the rotation center of the washing tub 3 is arrange | positioned in the position lower than the gravity center G2. Specifically, when viewed from the left-right direction X, the rotation shaft 14 is disposed on the axis J between the center of gravity G1 and the center of gravity G2. Regardless of the rotation angle θ, the positional relationship between each of the gravity center G1 and the gravity center G2 and the rotation shaft 14 is the same (see FIG. 3).

  The motor 15 fixed to the bottom wall 13 of the outer tub 10 extends from a power supply board (not shown) fixed to the casing 2 to supply power to the motor 15 and is fixed to the casing 2. A wiring 40 such as a signal line that extends from the control board (not shown) and transmits a control signal to the motor 15 is connected. The bottom wall 13 is provided with a hose-shaped drainage channel 41 for discharging water accumulated in the outer tub 10 to the outside of the machine. The drainage channel 41 passes through the housing 2 and is drawn out of the housing 2. Thus, the string-like parts 42 such as the wiring 40 and the drainage channel 41 extend from the bottom wall 13, that is, the lower part 3 </ b> A of the washing tub 3, and are connected to parts other than the washing tub 3. Parts other than the washing tub 3 are parts that do not always move, such as the power supply board, the control board, and the housing 2.

  The center of gravity G2 of the washing tub 3 may be the center C of the entire washing tub 3 in the axial direction D, and the center of gravity G2 and the center C may not coincide with each other. In any case, the rotation shaft 14 that is the rotation center of the washing tub 3 may be disposed at a position lower than at least one of the center C of the washing tub 3 and the center of gravity G2. Thus, since the rotation shaft 14 is at a position lower than the center C or the center of gravity G2 of the washing tub 3, the rotation shaft 14 is arranged in the washing tub 3 so as to be biased toward the lower portion 3A where the string-like component 42 is located. In this case, the rotation range of the lower part 3A of the washing tub 3 when the washing tub 3 is rotated can be reduced. Thereby, since the slack of the string-like component 42 extending from the lower portion 3A of the washing tub 3 can be suppressed, the string-like component 42 is less likely to interfere with surrounding components such as the motor 15 and the support portion 4. As a result, damage to the string-like component 42 can be suppressed.

  Further, as described above, when the rotating shaft 14 is disposed between the center of gravity G1 and the center of gravity G2, the balance is stabilized in the unit of the washing tub 3 and the motor 15, so that the washing tub 3 can be moved with a small force. The washing tub 3 that is tilted after the rotation can be stabilized with a small force. Therefore, it is possible to reduce the load on the drive mechanism 8 that rotates the washing tub 3 and the load on the lock release mechanism 7 that locks the rotation of the washing tub 3 (see FIG. 1).

  Hereinafter, as an example of the string-like component 42, description will be given focusing on the wiring 40, but the following content regarding the wiring 40 can also be applied to the drainage channel 41. The wiring 40 extends from the motor 15 in the lower portion 3 </ b> A of the washing tub 3 and is connected to the lower end portion 16 </ b> B of the side plate 16 on the right side X <b> 2 in the support portion 4. The lower end portion 16B is also a lower end portion in the entire support portion 4. The wiring 40 penetrates the lower end portion 16B to the left and right and is connected to a power supply board (not shown) and a control board (not shown) in the housing 2.

  In this case, in the string-like component 42, the portion 42 </ b> A connected to the lower portion 3 </ b> A of the washing tub 3 and the portion 42 </ b> B connected to the lower end portion 16 </ b> B of the support portion 4 are arranged close to each other in the vertical direction Z. Thereby, the movement range of the string-like component 42 when the washing tub 3 rotates can be suppressed small. Therefore, since the slack of the string-like component 42 from the lower part 3A of the washing tub 3 to the lower end 16B of the side plate 16 can be suppressed, the string-like component 42 is less likely to interfere with surrounding components. As a result, damage to the string-like component 42 can be suppressed.

  FIG. 4 is a left side view of the main part of the washing machine 1 according to the first modified example in a state where the washing tub 3 stands upright. FIG. 5 is a left side view of the main part of the washing machine according to the first modification in a state where the washing tub 3 is inclined. 4 and 5, parts that are the same as the parts described in FIGS. 1 to 3 are given the same reference numerals, and descriptions thereof are omitted (the same applies to FIGS. 6 and 7 described later). In the first modification shown in FIGS. 4 and 5, the wiring 40 extending from the motor 15 is not connected to the side plate 16, but escapes from the space 43 between the pair of left and right side plates 16 to the rear side Y <b> 2. , Directly connected to the rear wall 2D of the housing 2. Specifically, the wiring 40 is connected to a portion 2E located at a position higher than the motor 15 on the rear wall 2D.

  In this case, since the wiring 40 which is the string-like component 42 is arranged between the housing 2 and the motor 15 and away from the motor 15 around the string-like component 42 to the upper side Z1, the washing tub 3 is inclined. In addition, the wiring 40 is less likely to interfere with the motor 15. As a result, damage to the wiring 40 can be suppressed.

  FIG. 6 is a longitudinal sectional front view of the washing machine 1 according to the second modification. In relation to the second modification, at least one of the pair of left and right rotating shafts 14 is formed hollow. In FIG. 6, the left side X <b> 1 pivot shaft 14 is formed hollow. Specifically, the rotating shaft 14 extends from the inlet 14 </ b> A on the bottom wall 13 side of the outer tub 10 in the axial direction D and then bends substantially at right angles to the left side X <b> 1 from an outlet 14 </ b> B on the left end surface of the rotating shaft 14. An exposed substantially L-shaped through hole 14C is formed (see also an enlarged view of a portion surrounded by a broken-line circle in FIG. 6). 6, the wiring 40 is drawn from the motor 15 to the upper side Z1 along the lower part 3A of the washing tub 3, and the through hole 14C of the rotation shaft 14 on the left side X1 enters the inlet 14A. And it passes through the order of the exit 14B and extends out of the washing tub 3 by protruding from the rotating shaft 14 to the left side X1.

  That is, the wiring 40 extends from the rotation shaft 14 that is a portion that hardly moves in the rotating washing tub 3 and is connected to components other than the washing tub 3. Thereby, the movement range of the wiring 40 when the washing tub 3 rotates can be suppressed small. Therefore, as in the above-described embodiment (see FIGS. 1 to 3) and the first modification (see FIGS. 4 and 5), the rotation shaft 14 is disposed at a position lower than the center of gravity G2 and the center C of the washing tub 3. Even if it is not the structure to be done, since the slackness of the wiring 40 can be kept small, the wiring 40 is less likely to interfere with surrounding components. As a result, damage to the wiring 40 can be suppressed. Of course, also in the second modification, the rotation shaft 14 may be disposed at a position lower than the center of gravity G2 or the center C. In this case, the slackness of the wiring 40 can be further reduced, so that the wiring 40 Damage can be further suppressed.

  A fixing portion 44 is provided on the surface of the lower portion 3 </ b> A of the washing tub 3. The number of the fixing portions 44 can be arbitrarily set. In FIG. 6, two are provided on the circumferential wall 12 and the bottom wall 13 of the outer tub 10, one in total. The fixing part 44 has, for example, a ring shape. A middle portion of the wiring 40 is inserted into the fixing portion 44. Thereby, since at least one place in the middle of the wiring 40 is fixed to the washing tub 3, the movement range of the wiring 40 when the washing tub 3 rotates can be further reduced. Therefore, since the slack of the wiring 40 can be further reduced, the wiring 40 is less likely to interfere with surrounding parts such as the side plate 16 by being integrated with the washing tub 3. As a result, damage to the wiring 40 can be further suppressed. The fixing portion 44 is provided in the motor 15, strictly speaking, in a stay 45 (see FIG. 4) that is formed in a substantially U shape that is attached to the bottom wall 13 from the lower side Z <b> 2. Also good.

  FIG. 7 is a longitudinal sectional front view of the washing machine 1 according to the third modification. In relation to the third modification, at least one of the pair of side plates 16 in the support portion 4 is formed with a through hole 16C around the rotation shaft 14 (enlarged portion surrounded by a broken-line circle in FIG. 7). (See also figure). In FIG. 7, a through hole 16C is formed in the side plate 16 of the left side X1. With reference to the state where the washing tub 3 stands upright in FIG. 7, the wiring 40 is pulled out from the motor 15 to the upper side Z <b> 1 and extends along the lower portion 3 </ b> A of the washing tub 3 around the rotation shaft 14 in the left side X <b> 1. By projecting from the side plate 16 to the left side X1 through the hole 16C, it extends out of the washing tub 3. Note that the through hole 16 </ b> C is as much as possible on the rotating shaft 14 so that the wiring 40 inserted through the through hole 16 </ b> C does not interfere with the operation of the rotating unit 6, the lock release mechanism 7, and the drive mechanism 8 (see FIG. 1). It is formed at a close position.

  Also in this case, as in the second modification, the wiring 40 extends from a portion that hardly moves in the rotating washing tub 3 and is connected to a part other than the washing tub 3, so that the washing tub 3 rotates. The movement area of the wiring 40 can be kept small. Therefore, since the slackness of the wiring 40 can be suppressed, the wiring 40 is less likely to interfere with surrounding components, and damage to the wiring 40 can be suppressed. Also in the third modification, similarly to the second modification, the rotation shaft 14 may be disposed at a position lower than the center of gravity G2 or the center C of the washing tub 3 in order to suppress the slackness of the wiring 40 further.

  The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.

  For example, as an electrical component to which the wiring 40 is connected in the washing tub 3, in addition to the motor 15 described above, a sensor for detecting the water level in the outer tub 10 and the transmission mechanism 33 described above can be cited.

  Further, if the movement of the nut member 28 in the front-rear direction Y, that is, the rotation of the washing tub 3 can be restricted when the driving of the motor 26 is stopped, the lock release mechanism 7 and the recess 6C of the rotating unit 6 are provided. It may be omitted. Thereby, the rotation angle θ can be adjusted steplessly.

DESCRIPTION OF SYMBOLS 1 Washing machine 2 Housing | casing 2E Part 3 Washing tub 3A Lower part 4 Support part 14 Rotating shaft 15 Motor 16B Lower end part 40 Wiring 42 String-like component 44 Fixing part C Center D Axis direction G2 Center of gravity J Axis line Z Vertical direction

Claims (5)

A cylindrical washing tub for storing laundry, the washing tub being rotatable so that its axis intersects the vertical direction;
A string-shaped part extending from the lower part of the washing tub and connected to a part other than the washing tub,
Including
The washing machine has a rotation center at a position lower than a center of the washing tub in the axial direction of the washing tub or a center of gravity of the washing tub. Including a support portion for rotatably supporting the washing tub;
The washing machine according to claim 1, wherein the string-like component extends from a lower portion of the washing tub and is connected to a lower end portion of the support portion. A housing for housing the washing tub;
An electrical component fixed to the lower part of the washing tub;
Including
The washing machine according to claim 1, wherein the string-like component is a wiring extending from the electrical component, and is connected to a portion of the housing located at a position higher than the electrical component. A cylindrical washing tub for storing laundry, the washing tub being rotatable so that its axis intersects the vertical direction;
From the lower part of the washing tub, through the rotation center of the washing tub or around the rotation center, the string-shaped component that extends outside the washing tub and is connected to a component other than the washing tub,
Including a washing machine.   The washing machine according to any one of claims 1 to 4, further comprising a fixing portion that fixes at least one place in the middle of the string-like component to the washing tub.

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