JP6528135B2 - Washing machine - Google Patents

Description

  The present invention relates to a washing machine for washing laundry such as clothes.

  Conventionally, a vertical washing machine and a drum-type washing machine are known as this type of washing machine. The vertical washing machine is a washing machine of a type in which the rotation axis of the inner tub rotatably provided in the outer tub is in the vertical direction, and the laundry is taken in and out from the inlet provided at the upper portion of the inner tub. The drum-type washing machine is a washing machine of a type in which the rotation axis of the inner tub rotatably provided in the outer tub is in the horizontal direction, and the laundry is taken in and out from the inlet provided at the front of the inner tub.

  The advantage of the drum type washing machine is that it can be tapped and washed by lifting and dropping the laundry in the rotational direction by the rotation of the inner tub. Further, when the washed laundry is continuously dried, the warm air can be effectively brought into contact with the laundry stirred by the rotation of the inner tank, and can be dried rapidly.

  In a typical drum-type washing machine, a lid provided openably and closably on the front surface of a housing is opened to take in and out the laundry from the insertion port. For this reason, when taking out the laundry in an inner tank, it was necessary to bend a body and to put a hand to the bottom part in an inner tank, and there existed a subject that usability was bad.

  Therefore, a washing machine has been proposed in which the rotation axis of the inner tub is inclined upward and the input port is formed obliquely upward (see, for example, Patent Document 1). However, in this type of washing machine, if the angle of inclination of the rotation axis of the inner tub is increased in the upper direction in order to make it easy to take out the laundry, the laundry is biased backward during tap washing due to tapping. As a result, there is a problem that the cleaning effect is reduced. Further, even during drying, there is a problem that the laundry is biased backward by stirring and the drying effect is reduced, and it is difficult to solve these problems simultaneously.

  Moreover, in the drum type washing machine which made the rotating shaft of the inner tank the horizontal direction, putting in and out the laundry from upper direction is proposed (for example, refer patent document 2). In this type of washing machine, the use of the upper space of the washing machine is restricted in order to be able to open and close the lid and to take in and out the laundry. There is a problem that an installation place is limited by this.

  In addition, a vertical washing machine has been proposed in which the washing tub is configured to be slidable in the front-rear direction with respect to the housing, and the laundry can be taken in and out from above with respect to the washing tub drawn forward from the housing (See, for example, Patent Document 3). According to this configuration, it is proposed that the laundry can be easily put in and out, and that the space above the washing machine can be used.

  FIG. 14 is a cross-sectional view of an essential part of a conventional drawer-type washing machine described in Patent Document 3. As shown in FIG. The conventional drawer-type washing machine is provided in a cabinet 51 opened at the front, a cabinet 52 which is movably inserted in the front-rear direction through the open front of the cabinet 51, and opened at the upper side. The outer tank 53 and the inner tank 55 rotatably provided in the outer tank 53 by the rotating shaft 54 provided in the vertical direction are provided. Further, the washing machine is provided on the lower side of the outer tub 53, and has a motor 56 for rotationally driving the inner tub 55 via the rotation shaft 54, and a suspension 57 for buffer-supporting the outer tub 53 in the cabinet 52. And a slide means 58 which enables the cabinet 52 to be moved in the front-rear direction in a sliding manner relative to the housing 51.

  The suspension 57 has a support member 60 and an elastic member 61. The support member 60 is provided between the support plate 59 and the bottom surface 52 a of the cabinet 52. The support member 60 is made of an annular elastic body that supports the washing tub while absorbing the impact and vibration of the washing tub formed by the outer tub 53 and the inner tub 55. The elastic member 61 is formed of a coil spring which applies an elastic force to return to the original position when the washing tub is inclined.

  The slide means 58 is rotatably mounted on the rail 62 fixed in the front and rear direction on the left and right lower surfaces of the bottom surface 52 a of the cabinet 52 and on the left and right inner surfaces of the lower side of the housing 51 in contact with the rail 62. And the roller 63.

  At the time of washing, the cabinet 52 is pulled out toward the front side so as to protrude forward from the housing 51, the lid 64 is opened, and the laundry is put in the inner tub 55. Thereafter, the lid 64 is closed, and the cabinet 52 is pushed into the housing 51 and stored. When the washing is completed, the cabinet 52 is pulled out of the housing 51 and the laundry in the inner tub 55 is taken out from above the inner tub 55.

  However, in the conventional configuration described in Patent Document 3 above, when the cabinet 52 is pulled out from the housing 51 to the front side in order to take out the laundry after washing is completed, the laundry containing water after dehydration is It is pulled out of case 51 with a washing tub. For this reason, it has the subject that the installation state of case 51 becomes unstable. That is, when the cabinet 52 is pulled out of the housing 51, the weight of the cabinet 52 acts downward on the outside of the housing 51 with the front lower portion of the housing 51 as a fulcrum.

  Moreover, in a general washing machine, when the user starts washing and notices that he has forgotten to put in the laundry, it is possible to pause the operation on the way, and after adding the laundry, the operation can be performed. It can be resumed. When the operation temporary stop operation is performed, the cabinet 52 can be pulled out of the housing 51. In this case, since the amount of washing water corresponding to the amount of the loaded laundry is stored in the washing tub, the weight of the cabinet 52 is increased, and the installation state of the housing 51 is further unstable. Have.

  The movable portion such as the motor 56 provided below the outer tub 53 and the suspension 57 for buffering and supporting the outer tub 53 is pulled out of the housing 51 in a state of being surrounded by the cabinet 52. Therefore, the cabinet 52 becomes heavier, and the installation state of the housing 51 becomes more unstable.

  In order to solve such a problem, it is conceivable to support the water tank from below with a support leg or the like that can be grounded at the front of the case when the water tank is pulled out of the case. However, the operation when pulling out and storing the water tank is inconvenient. Furthermore, when a washing machine is installed in the waterproof pan for washing machines etc., it has the subject that usability is still worse.

JP, 2006-75480, A Unexamined-Japanese-Patent No. 8-84894 Japanese Patent Application Laid-Open No. 2002-119786

  SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and makes it easy to take out and put out the washing tank by pulling out the water tank from the housing, and ensures a stable installation state even when the water tank is pulled out. Intended to provide.

  In order to solve the above-mentioned conventional problems, the washing machine according to the present invention elastically supports a housing provided with an opening on the front side, a water tank provided in the housing and storing washing water, and a water tank It comprises a slide device, a drum rotatably provided in a water tank, and a motor for rotationally driving the drum. Furthermore, it has a water tank opening that is provided so as to be openable and closable on the circumferential side surface of the water tank, and a drum opening that is provided on the circumferential side of the drum so as to be openable and closable. The slide device has a slide body that enables the water tank to slide in the front-rear direction between the pulled out position and the storage position, a damper device that elastically supports the water tank from below, and a spring device that elastically supports the water tank from above doing. When the water tank is in the withdrawal position, the water tank is supported by a slide in the housing.

  This allows the user to withdraw the water tank from the housing and put the laundry in and out of the water tank from above, and can easily take out the laundry in a comfortable posture. Furthermore, when the water tank is pulled out of the housing, a stable installation state can be secured without losing the balance of the center of gravity of the washing machine.

  The washing machine according to the present invention can easily take out the laundry and can ensure a stable installation state of the washing machine even when the water tank is pulled out from the housing.

FIG. 1 is a cross-sectional view of an essential part of a washing machine according to a first embodiment of the present invention. FIG. 2: is principal part sectional drawing at the time of the water tank withdrawal of the washing machine. FIG. 3 is a partially cutaway top view of the washing machine when the water tank is pulled out. FIG. 4A is a cross-sectional view of main parts of the washing machine when the drum is fixed. FIG. 4: B is principal part sectional drawing at the time of drum fixing release of the washing machine. FIG. 5: is principal part sectional drawing of the washing machine. FIG. 6 is a cross-sectional view of the main part when the water tank is pulled out when the washing machine is temporarily stopped. FIG. 7 is a cross-sectional view of the main part when the slide body of the washing machine is fixed. FIG. 8 is a cross-sectional view of the main parts of the washing machine at the time of releasing the slide from fixing. FIG. 9 is a cross-sectional view of main parts of the washing machine according to Embodiment 2 of the present invention at the time of slide body fixing release. FIG. 10 is a cross-sectional view of the main part of the washing machine during operation of the separating device. FIG. 11 is a cross-sectional view of main parts of the washing machine at the time of slide body fixing. FIG. 12 is a cross-sectional view of main parts of the washing machine according to Embodiment 3 of the present invention when the slide body is fixed. FIG. 13 is a partial cutaway cross-sectional view of the washing machine. FIG. 14 is a cross-sectional view of an essential part of a conventional washing machine.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiment.

Embodiment 1
FIG. 1 is a side view showing a main part of a washing machine according to a first embodiment of the present invention in cross section. FIG. 2: is the side view which showed the principal part at the time of the water tank withdrawal of the washing machine by the cross section. FIG. 3 is a partially cutaway top view of the washing machine when the water tank is pulled out. FIG. 4A is a cross-sectional view of main parts of the washing machine when the drum is fixed. FIG. 4: B is principal part sectional drawing at the time of drum fixing release of the washing machine. FIG. 5: is the front view which showed the principal part of the washing machine in the cross section. FIG. 6 is a side view showing in cross section the main part at the time of withdrawal of the water tank at the time of the operation temporary stop of the washing machine. FIG. 7 is a cross-sectional view of the main part when the slide body of the washing machine is fixed. FIG. 8 is a cross-sectional view of the main parts of the washing machine at the time of releasing the slide from fixing.

  The outer shell of the washing machine main body 1 is formed by a housing 2, and an opening 2 a is provided on the front side of the housing 2. The front support leg 3a and the rear support leg 3b made of rubber each having elasticity are provided at two places on the front side and two places on the rear side of the bottom of the housing 2. The housing 2 is installed on the floor via the support legs 3a and 3b. The housing 2 includes a water tank 4 for storing water for washing, and a drum 5 for containing laundry (hereinafter referred to as laundry) such as clothes in the water tank 4.

  The cylindrical drum 5 is configured to be rotatable about a drum rotation shaft 5 a disposed horizontally in the front-rear direction, and is rotationally driven by a motor 6 provided at the rear of the water tank 4. The motor 6 is composed of a brushless DC motor, and its rotational speed freely changes by inverter control.

  The drum rotation shaft 5 a to which the drum 5 is fixed is rotatably supported by a rotation support 7 which is a bearing fixed to the rear of the water tank 4. A mechanical case 8 is attached as a metal reinforcement to the rear of the water tank 4 made of resin, and the rotational support 7 is fixed by the mechanical case 8.

  Inside the peripheral side surface of the drum 5, baffles 9 are provided so as to protrude inward at a plurality of locations (for example, three locations) toward the rotation center of the drum 5 which is the direction of the drum rotation shaft 5a. A large number of small holes 10 communicating with the inside of the water tank 4 are provided on the circumferential side surface of the drum 5.

  A drum opening 11 for taking in and out the laundry is provided on the circumferential side surface of the drum 5. The drum 5 is configured to be openable and closable by a drum lid 12. The drum opening portion 11 is provided on a part of the circumferential side surface of the drum 5 and, for example, is provided with a size of about 1⁄3 of the circumference. The drum opening 11 is disposed between the adjacent baffles 9. The drum lid 12 formed in an arc shape along the circumferential side surface of the drum 5 is provided slidably in the circumferential direction along the outer circumferential surface of the drum 5.

  The drum lid 12 is guided at its both ends by a pair of rails (not shown) extending in the circumferential direction. The user can manually open and close the drum opening 11 by holding the operation unit 12 a and sliding the drum lid 12. The drum lid 12 is provided with a fixed claw (not shown) utilizing the metal spring property, and is fixed so that the drum opening 11 is not opened by the rotation of the drum 5 during the washing operation.

  When the laundry is taken in and out, the drum opening portion 11 is opened by sliding movement of the drum lid 12 against the spring force of the fixed claw. When washing, the drum lid 12 slides to close the drum opening 11.

  A water tank opening 13 is provided at the top of the circumferential surface of the water tank 4. The water tank 4 is configured to be openable and closable by a water tank lid 14. The water tank opening 13 is provided on a part of the circumferential surface of the water tank 4 and is formed, for example, in a size of about 1⁄3 of the circumference. The water tank cover 14 formed in an arc shape along the circumferential side surface of the water tank 4 is provided slidably along the outer circumferential surface of the water tank 4 in the circumferential direction.

  The water tank cover 14 is watertightly guided by a pair of rails (not shown) whose both ends extend in the circumferential direction so that the washing water does not leak from the water tank. The user can manually open and close the water tank opening 13 by holding the operation unit 14 a and sliding the water tank lid 14. Similar to the drum lid 12, the water tank lid 14 is provided with a fixed claw (not shown) utilizing the metal spring property, and the water tank opening 13 is kept closed during the washing operation. There is.

  When the laundry is taken in and out, the water tank cover 14 is slid against the spring force of the fixed claws to open the water tank opening 13 and the drum cover 12 is exposed. When washing, the water tank lid 14 is slid and the water tank opening 13 is closed.

  The slide device 15 elastically supporting the water tank 4 in the housing 2 includes a slide body 16, a damper device 17, and a spring device 18. The slide body 16 has a position where the water tank 4 is pulled out so that the water tank opening 13 is exposed forward from the housing 2 (hereinafter referred to as a drawing position), and the water tank 4 is The water tank 4 can slide in the front-rear direction between a storage position (hereinafter referred to as a storage position) which is a stored state. The damper device 17 elastically supports the water tank 4 from below. The spring device 18 elastically supports the water tank 4 from above. The slide device 15 supports the water tank 4 in the housing 2 when the water tank 4 is in the drawn position.

  The slide body 16 is a rectangular structure supporting the top plate 16 a and the bottom plate 16 b by pillars 16 c at four corners. A plurality of wheels 19 are provided below the bottom plate 16b, and wheels 19 are provided on the left and right of the front and rear of the bottom plate 16b. Inside the bottom surface of the housing 2, two parallel rails 20 separated to the left and right are provided. The rails 20 are formed in the front-rear direction of the washing machine body 1.

  The wheels 19 roll on the rails 20 to slide the slide 16. Thereby, the water tank 4 slides between the drawing position and the storage position. The movable range of the slide body 16 is determined by the front stopper 21 provided at the front end of the rail 20 and the stopper 22 provided at the rear end of the rail 20. The front stopper 21 stops the slide 16 so that the water tank 4 is at the withdrawal position, and the rear stopper 22 stops the slide 16 so that the water tank 4 is at the storage position.

  The water tank 4 is elastically supported from below by a pair of left and right damper devices 17 which are supported at one end by the bottom plate 16 b of the slide body 16 and inclined downward. Furthermore, the water tank 4 is elastically supported from above by a pair of left and right spring devices 18 of which one end is supported by the upper plate 16 a of the slide body 16.

  The slide device 15 is provided with a front door 24 that covers the water tank 4 from the outside. A gap 23 is provided between the front surface of the water tank 4 and the front door 24. The front door 24 is connected to the slide 16 below the water tank 4 by two parallel shafts 25 and slides along with the slide 16.

  When the water tank 4 is in the storage position, the front door 24 closes the opening 2a of the housing 2 and a lock lever (not shown) provided on the handle 26 holds the opening 2a closed. When the water tank 4 is pulled out, when the lock lever is released and the front door 24 is pulled to the front through the handle 26, the slide body 16 is slid to the drawn position of the water tank 4, and the water tank 4 is removed from the housing 2 It is pulled forward.

  Since the water tank 4 is elastically supported on the slide body 16 by the damper device 17 and the spring device 18, it is possible to damp the vibration of the water tank 4 at the time of washing. Further, the gap 23 provided between the front door 24 and the front surface of the water tank 4 can prevent the vibration of the front door 24 connected to the slide body 16.

  A water supply passage 28 connecting the water tank 4 and the faucet 27 outside the washing machine main body 1 is constituted by a flexible flexible bellows hose. The water supply path 28 maintains the connection state of the water tank 4 and the faucet 27 by expanding and contracting according to the slide movement of the slide body 16.

  The faucet 27 supplies water at a temperature substantially equal to the room temperature. A detergent case (not shown) for mixing detergent, a softener and the like into the water to be supplied is provided along the water supply passage 28 and a water supply valve 29. The water supply valve 29 realizes two states of communicating the water supply path 28 with the water tank 4 or stopping the water supply.

  The water tank 4 is provided with a drainage path 30 and a drainage pump 31 for discharging the water in the water tank 4 to the outside of the machine. The drainage path 30 is composed of a telescopic flexible bellows hose, which expands and contracts in response to the slide movement of the slide body 16.

  The motor 6 provided at the rear of the water tank 4 is disposed so that a part thereof protrudes rearward from the inside of the slide 16 or the rear end of the slide 16. Here, the center of gravity of the water tank 4 including the drum 5 and the motor 6 is configured to be at the position indicated by A in the figure. In this case, it is in the state where the laundry after dehydration of the maximum capacity (for example, 9 kg) entered in the water tank 4.

  On the other hand, if the water tank 4 contains a predetermined amount of water (for example, a water level at which the approximately lower half of the drum 5 sinks in water) that has been set when washing the maximum capacity of laundry, the water tank The center of gravity of 4 moves in the forward direction from A in the figure to the position indicated by B in the figure.

  A control device 32 is provided on the upper front of the housing 2. The control device 32 controls the driving of the motor 6, the water supply valve 29, the drainage pump 31 and the like, and sequentially controls each process such as washing, rinsing and dewatering. The user turns on the power switch (not shown) of the operation display unit (not shown) and operates the operation button (not shown) to enable desired operation.

  A front upper wall 2b is provided on the front of the housing 2 above the opening 2a, and a front lower wall 2c is provided below the opening 2a. When the water tank 4 is in the pulled out position, the front upper wall 2b covers the spring device 18 from the front, and the front lower wall 2c covers the damper device 17 from the front.

  As shown in FIG. 4A, a drum fixing device 33 constituted of a solenoid is provided on the outer peripheral side surface of the water tank 4. The drum fixing device 33 is structured such that an elongated rod-like fixing pin 34 can be advanced and retracted toward the drum 5, and a tip portion of the fixing pin 34 can be inserted into and removed from a concave fixing hole 35 provided in the drum 5. .

  When the laundry is taken in and out, the drum fixing device 33 is operated by the control device 32 so that the tip of the fixing pin 34 is inserted into the concave fixing hole 35 provided in the drum 5 as shown in FIG. 4A. Push out the fixing pin 34 on the Thereby, the rotation of the drum 5 is fixed.

  On the other hand, when washing, as shown in FIG. 4B, the fixing pin 34 of the drum fixing device 33 is pulled out from the fixing hole 35 of the drum 5 so that the fixing pin 34 does not contact the rotating drum 5 It is held at a position away from the drum 5. Thereby, the drum 5 becomes rotatable.

  A magnet 36 is provided on a part of the outer peripheral portion of the drum 5. A magnetic force detection sensor 37 is provided at a position facing the magnet 36 in a state where the drum opening 11 provided on the circumferential side surface of the drum 5 is directed upward. The magnetic force detection sensor 37 is disposed on the outer side of the water tank 4 and is provided on the rotation track of the magnet 36 by the rotation of the drum 5.

  When the magnetic force detection sensor 37 detects the closest approach of the magnet 36 and stops the rotation of the drum 5, the fixing hole 35 of the drum 5 is at a position facing the fixing pin 34 (see FIG. 4A). At this time, the fixing pin 34 is inserted into the fixing hole 35, whereby the drum 5 is fixed at a position where the drum opening 11 faces the water tank opening 13.

  When the water tank 4 slides from the storage position to the drawing position, the water tank opening 13 is exposed from the housing 2, and the water tank 4 is fixed upward at a position where the drum opening 11 faces the water tank opening 13. Is pulled out. Then, by sliding the water tank cover 14 and the drum cover 12, the water tank opening 13 and the drum opening 11 are opened, and the laundry can be taken in and out.

  A slide fixing device 38 for fixing the slide 16 to the bottom of the housing 2 is provided at the rear of the housing 2. The slide body fixing device 38 is operated by a drive device (not shown) such as a motor, and can press the wheel 19 against the rail 20 to fix it when the water tank 4 is in the storage position. The slide body fixing device 38 has a support portion 39 fixed to the bottom portion in the housing 2 and a movable portion 40 one end of which is rotatably connected to the support portion 39.

  The movable portion 40 is rotatably provided upward from the side of the bottom plate 16b of the slide body 16 (see FIGS. 7 and 8), and the fixed portion 40a provided at the tip of the movable portion 40 is the upper surface of the bottom plate 16b. It is comprised so that the recessed part 16d provided in may be fitted.

  When the water tank 4 is in the storage position stored in the housing 2, as shown in FIG. 7, the movable portion 40 is rotated in the arrow X direction, and the fixed portion 40a is in the recess 16d of the bottom plate 16b. When locked in the fitted state, the slide body 16 is fixed at the storage position of the water tank 4.

  When the water tank 4 is pulled out of the housing 2 or in the pulled-out position, and further stored, as shown in FIG. 8, the movable portion 40 is pivoted in the arrow Y direction to fix the fixed portion 40a. Is disengaged from the recess 16 d of the bottom plate 16 b and released from the lock, the slide body 16 can slide.

  The operation and action of the washing machine configured as described above will be described below. The details of the washing operation will be described below. Washing is carried out in the order of washing, rinsing and dewatering steps.

  The user first pulls the handle 26 to slide the water tank 4 in the forward direction. After the water tank lid 14 is slid to the drawing position where the water tank lid 14 is exposed from the housing 2, the operation portion 14 a of the water tank lid 14 is slid in the circumferential direction of the water tank 4 to open the water tank opening 13. Furthermore, the user slides the drum lid 12 in the circumferential direction of the drum 5 to open the drum opening 11 and accommodates the laundry in the drum 5.

  After the laundry is stored, the user slides the drum cover 12 and the water tank cover 14 to the original state to close the drum opening 11 and the water tank opening 13. Thereafter, the user pushes the handle 26, slides the water tank 4 to the storage position in the housing 2, and closes the opening 2a of the housing 2 by the front door 24.

  When the power switch of the operation display unit (not shown) provided on the front upper wall 2b of the housing 2 is turned on and the operation button is pressed to select a desired operation program, the operation is started.

  The slide body fixing device 38 is operated by the operation start operation. The movable portion 40 is rotated in the direction of the arrow X, the fixed portion 40a is locked in a pressed state fitted in the recess 16d of the bottom plate 16b, and the wheel 19 is pressed against the rail 20 to fix the slide body 16.

  The washing process is performed first. The washing process is performed in the order of cloth amount detection, water supply, and tap washing. The amount of laundry loaded into the drum 5 is detected from the amount of torque applied to the motor 6 and the current value of the motor 6 while the drum 5 is rotationally driven.

  The control device 32 sets the time for each process of washing, rinsing and dewatering according to the detected amount of cloth, determines the amount of detergent set according to the amount of laundry, and displays it on the operation display unit . The user places the indicated amount of detergent into the detergent case. The detergent may be automatically loaded by providing a general detergent automatic loading device in addition to the manual loading by the user.

  Thereafter, the controller 32 opens the water supply valve 29 to bring the faucet 27 into communication with the water tank 4. As a result, the water starts to accumulate in the water tank 4. At this time, the drainage pump 31 is in a stopped state. The water having passed through the water supply valve 29 passes through the detergent case and is supplied to the water tank 4 together with the detergent.

  The amount of water supplied to the water tank 4 is preset according to the amount of laundry. Water accumulated in the water tank 4 flows into the drum 5 from the small holes 10. Thus, while the water is stored in the water tank 4, the control device 32 drives the motor 6 to rotate the drum 5 at a low speed to keep the laundry evenly wet.

  The amount of water collected in the water tank 4 is detected by a water amount detector (not shown), and the water supply valve 29 is closed when a predetermined amount of water is collected. The drum 5 repeats normal rotation and reverse rotation at predetermined time intervals at the number of revolutions (for example, 45 rpm) at which the laundry is hit and washed by the motor 6.

  In the tap washing, after the laundry is lifted in the rotational direction by the baffle 9, it falls from the top in the drum 5 and is hit on the laundry accumulated on the bottom of the drum 5. Thereby, the washing is performed by the mechanical force in combination with the chemical force by the detergent. The control device 32 rotates the drum 5 in accordance with a predetermined program to remove dirt from the laundry, and ends the washing process when a predetermined time has elapsed.

  Following the wash step, a rinse step is performed. A rinse process performs rinse operation of drainage, water supply, and agitation twice. In the first rinse, the drainage pump 31 is driven by the controller 32, and the washing water used in the washing process is drained from the water tank 4. Next, the water supply valve 29 is opened, the faucet 27 and the water tank 4 communicate with each other, and a predetermined amount of water set in the water tank 4 is supplied again.

  When a predetermined amount of water is supplied into the water tank 4, the controller 32 closes the water supply valve 29. During this time, the drainage pump 31 is stopped. Rotate the drum 5 in a state where water is stored in the water tank 4 and agitate the laundry to move the detergent component and the dirt component adhering to the laundry into the uncontaminated water. Run a rinse to remove dirt. When the predetermined time has elapsed, the controller 32 ends the first rinse operation, repeats this twice, discharges the water in the water tank 4, and ends the rinse process.

  Following the rinse step, controller 32 performs a dewatering step. The controller 32 drives the motor 6 to rotate the drum 5 at high speed (for example, 1400 rpm). At this time, as the number of revolutions increases, the centrifugal force applied to the laundry becomes stronger, so the laundry sticks to the inside of the drum 5.

  The moisture contained in the laundry moves outward through the small holes 10 of the drum 5 by centrifugal force and is blown to the inside of the water tank 4 by centrifugal force. Thereby, a certain amount of water contained in the laundry is removed. The water separated from the laundry is drained from the water tank 4 to the outside of the machine through the drainage path 30 by driving the drainage pump 31.

  At the end of the dewatering process, the controller 32 rotationally drives the motor 6 at a low speed, and stops the rotation of the motor 6 when the magnetic force detection sensor 37 detects the closest approach of the magnet 36. Next, the controller 32 operates the drum fixing device 33 to insert the fixing pin 34 into the fixing hole 35 of the drum 5 to lock the rotation of the drum 5.

  As a result, the drum 5 is stopped so that the drum opening 11 rotating in the state of being closed by the drum lid 12 faces the water tank opening 13 closed by the water tank lid 14.

  Next, the center of gravity of the water tank 4 will be described. As shown in FIG. 1, the center of gravity A of the water tank 4 after the dewatering process when the maximum amount of laundry is contained in the drum 5 is the front wheel 19 and the rear wheel 19 of the slide 16 as shown in FIG. It is located between Therefore, the slide body 16 can stably support the water tank 4 in a balanced manner, and can slide the slide body 16 smoothly.

  And since the wheel 19 on the front side is in contact with the front stopper 21 as shown in FIG. 2 also at the drawing position where the water tank 4 is pulled forward from the housing 2, the center of gravity A of the water tank 4 in the above mentioned state is It does not move forward from the front support leg 3a. Therefore, the water tank 4 can be stably supported by the slide body 16 in the housing 2.

  On the other hand, the center of gravity B of the water tank 4 with a maximum amount of laundry loaded in the drum 5 and a predetermined amount of water in the water tank 4 is located forward of the wheel 19 on the front side of the slide 16 (See Figure 2). In this case, the slide body 16 tilts forward. When the slide 16 is inclined forward with the front wheel 19 as a base point, the rear wheel 19 is lifted, and the rear of the upper plate 16 a of the slide 16 contacts the inside of the top surface of the housing 2. The resistance due to this contact is the resistance at the time of slide movement.

  When the center of gravity of the water tank 4 is B, it is assumed that a large amount of water is contained in the water tank 4, so the rear of the upper plate 16 a of the slide body 16 contacts the inside of the top surface of the housing 2, It becomes possible to withdraw the water tank 4 slowly by becoming resistance at the time of slide movement. Therefore, even if the drum lid 12 is opened immediately after the water tank 4 is pulled out, the contact resistance between the rear of the upper plate 16a and the inside of the top surface of the housing 2 is optimized so that the water in the water tank 4 does not jump out. It is set to.

  After the start of operation, for example, when a temporary stop operation is performed during the washing process in which a predetermined amount of water is stored in the water tank 4 by additional charging in the case of forgetting to put in the laundry, the slide restricting device 41 operates. (See FIG. 6). A slide restricting device 41 provided so as to be able to move in and out with respect to the rail 20 protrudes on the rail 20 and serves as a wheel stopper.

  When the slide body 16 is released from the fixed state by the slide body fixing device 38 by the temporary stop operation and the front door 24 is pulled to the front side through the handle 26, the slide body 16 is moved to a predetermined position by the slide restricting device 41. It stops at the additional loading position of objects and prevents any further forward movement.

  As shown in FIG. 6, the stop position of the slide body 16 stopped by the slide restricting device 41 by the temporary stop operation of the driving is the center of gravity of the water tank 4 when the laundry and a predetermined amount of water are contained in the water tank 4. B is set so as not to move forward than the front support leg 3a disposed on the front side of the bottom of the housing 2.

  Therefore, even when the water tank 4 containing the laundry and a predetermined amount of water in the water tank 4 is pulled out to a position where the laundry is additionally charged (hereinafter referred to as an additional charging position) when the operation is temporarily stopped. The water tank 4 can be stably supported by the slide body 16 in the housing 2.

  Next, fixation of the slide body 16 at the time of operation will be described. The drum 5 vibrates due to a tapping washing operation in the washing process during the washing operation, a high speed rotation in the dewatering process, and the like. This vibration is transmitted to the water tank 4. The vibration transmitted to the water tank 4 is attenuated by the damper device 17 and the spring device 18 which elastically support the water tank 4 and then transmitted to the slide body 16.

  The slide body 16 and the housing 2 coupled by the slide body fixing device 38 generate vibrations of substantially the same cycle, and the housing 2 generates vibration amplitude of the same cycle so as to avoid vibration amplitude of the slide body 16. Therefore, it is possible to suppress a slight collision due to the vibration of only one of the slide body 16 or the housing 2. Thereby, damage such as deformation of the slide device 15 can be prevented, and a stable slide operation of the slide body 16 can be maintained.

  Moreover, since the vibration of the slide body 16 can be suppressed by the case 2 installed and substantially fixed to the floor surface, the vibration of the washing machine main body 1 including the case 2 and the slide body 16 Can be suppressed.

  Further, since the slide body fixing device 38 fixes the wheel 19 to the rail 20 at the time of driving, there is no need to make the slide contact portion 20a of the wheel 19 and the rail 20 specially slippery, and the slide body 16 becomes smooth. It is possible to slide on the Furthermore, the small vibration of the wheel 19 due to the vibration of the slide body 16 can prevent generation of noise based on the wheel 19 hitting the rail 20.

  Also, by driving the slide body fixing device 38 at the start of operation, it is necessary to slide frequently due to forgetting to put in the laundry before washing operation, forgetting to take out the laundry after washing operation, etc. Fixation movement of the body 16 can be minimized. Thereby, the durability of the slide body fixing device 38 can be improved.

  Next, the operation of the slide device 15 will be described. The slide body fixing device 38 does not fix the slide body 16 to the housing 2 except during the washing operation. Therefore, the user can easily slide the water tank 4 by pulling the handle 26. When the water tank 4 is pulled out of the housing 2, the wheels 19 on the front side of the slide body 16 contact the front stopper 21, and the water tank 4 stops at the pulling position. Further, by pushing the handle 26, the slide body 16 slides rearward, the rear wheel 19 contacts the rear stopper 22, and the water tank 4 stops at the storage position.

  Next, the case of temporarily stopping the operation during washing will be described. After the start of operation, for example, when the temporary stop button is pressed due to additional insertion in the case of forgetting to put in the laundry, etc., the control device 32 once stops driving the motor 6 etc. and then rotates the motor 6 again at low speed. . The control device 32 detects the position of the drum 5 and locks the rotation of the drum 5 as at the end of the operation. Thereafter, the control device 32 releases the fixation of the slide body 16 by the slide body fixing device 38, makes the water tank 4 ready to be drawn out, and displays on the operation display unit that it is in the pause state.

  When a temporary stop operation is performed in the middle of the washing process, that is, when a predetermined amount of water is stored in the water tank 4, the control device 32 operates the slide restricting device 41. The control device 32 causes the slide restricting device 41 provided to be able to slide in and out with respect to the rail 20 so as to protrude onto the rail 20 and use it as the wheel 19 stop. When the user pulls the front door 24 toward the front through the handle 26, the slide body 16 stops at the predetermined position shown in FIG. Is blocked.

  The stop position of the slide body 16 stopped by the slide restricting device 41 by the temporary stop operation is the center of gravity B of the water tank 4 when the laundry and a predetermined amount of water are contained in the water tank 4 It is set so that it can not move ahead rather than front side support leg 3a arranged at (refer to Drawing 6).

  As shown in FIG. 6, since the water tank opening 13 and the drum opening 11 are half exposed from the front surface of the housing 2 as shown in FIG. Operation is possible, and laundry can be additionally introduced.

  When the addition of the laundry is completed, the drum cover 12 and the water tank cover 14 are closed, the front door 24 is pushed through the handle 26, and the water tank 4 slides to the storage position. Thereafter, the user operates the operation restart button. The control device 32 fixes the slide body 16 at the storage position by the slide body fixing device 38 and pulls out the fixing pin 34 from the fixing hole 35 of the drum 5 to make the drum 5 in a rotatable state. Thereafter, the control device 32 resumes the washing process according to a predetermined procedure according to the situation when the operation is temporarily stopped.

Second Embodiment
FIG. 9 is a cross-sectional view of the main parts of the washing machine according to the second embodiment of the present invention at the time of slide body fixing release. FIG. 10 shows a cross-sectional view of the main part of the washing machine during operation of the separating device. FIG. 11: shows principal part sectional drawing at the time of slide body fixing of the washing machine. A feature of the present embodiment is that a slide device fixing device 38 is provided with a separation device 42 that brings the rail 20 and the wheel 19 into a non-contact state when the water tank 4 is in the storage position. The other configuration is the same as that of the first embodiment, and the same reference numeral is attached to the same configuration, and the detailed description uses that of the first embodiment.

  In FIGS. 9 to 11, the separation device 42 is provided in the slide body fixing device 38 for fixing the slide body 16 to the bottom of the housing 2. The separation device 42 is configured by, for example, an electric jack or the like, and is configured to be able to move the slide body 16 upward and downward. The separation device 42 is attached to the bottom of the housing 2 and the upper surface 42a of the separation device 42 is opposed to the lower surface 16e of the bottom plate 16b.

  A plurality of separation devices 42 are provided in the vicinity of two parallel rails 20 provided in the front-rear direction at intervals in the left and right direction. The separation device 42 supports the four corners of the bottom plate 16b of the slide 16 that elastically supports the water tank 4 in a well-balanced manner from the bottom with the upper surface portion 42a so that the slide 16 can be stably moved up and down. .

  When the water tank 4 is in the storage position, by raising the separating device 42, the slide body 16 is displaced upward and the wheels 19 are floated from the sliding contact portion 20a of the rail 20. Thereby, the rail 20 and the wheel 19 are brought into non-contact (see FIG. 10). When the slide body 16 is lifted by the separating device 42, the movable portion 40 of the slide body fixing device 38 is rotated, the fixing portion 40a is fitted into the recess 16d, and the slide body 16 is pressed against the upper surface 42a of the separating device 42 And fixed to the housing 2 (see FIG. 11).

  As described above, in the present embodiment, the slide body fixing device 38 is provided with the separation device 42 that brings the rail 20 and the wheel 19 into a non-contact state when the water tank 4 is in the storage position. Thereby, the slide body 16 side and the housing 2 side can be separated at the time of operation, and damage to the wheel 19 and the rail 20 of the slide device 15 that vibrates due to the tapping washing operation at the washing step and high speed rotation at the dewatering step. Can be prevented. Therefore, stable slide movement is possible over a long period of time. In addition, small collisions between the wheels 19 and the rails 20 due to vibration can be eliminated, and generation of noise during driving can be prevented.

  Further, the separating device 42 is configured to be capable of moving the slide body 16 up and down, and when the water tank 4 is at the storage position, the slide body 16 can be displaced upward to float the wheel 19 from the rail 20. As a result, a space can be formed between the wheel 19 and the rail 20, and a small collision between the wheel 19 and the rail 20 due to vibration can be eliminated to prevent generation of noise during driving.

Third Embodiment
FIG. 12 is a cross-sectional view of main parts of the washing machine according to the third embodiment of the present invention when the slide body is fixed. FIG. 13 is a partial cutaway cross-sectional view of the washing machine. A feature of the present embodiment is that a shock absorber 43 is provided between the wheel 19 and the rail 20 when the water tank 4 is in the storage position. The other configuration is the same as that of the first embodiment, and the same reference numeral is attached to the same configuration, and the detailed description uses that of the first embodiment.

  In FIG. 12 and FIG. 13, the shock absorbing body 43 is disposed on the upper surfaces of two parallel rails 20 provided in the front and rear direction separately from each other in the left and right direction, that is, the sliding contact portion 20a on which the wheel 19 rolls. The buffer 43 is formed, for example, in the form of a sheet of rubber having a cushioning property.

  The wheels 19 rolling on the sliding contact portion 20a of the rail 20 are attached to the front and rear four places of the bottom plate 16b opposite to the left and right rails 20. When the water tank 4 is in the storage position, the front and rear wheels 19 are positioned above the shock absorber 43, and when pulled forward, the wheels 19 are configured to disengage from the shock absorber 43.

  As described above, in the present embodiment, when the water tank 4 is in the storage position, the buffer 43 is disposed between the wheel 19 and the rail 20. As a result, the shock absorber 43 can absorb the vibration of the wheel 19 due to the tapping washing operation in the washing process and the high speed rotation in the dewatering process, and the generation of the noise during the operation can be prevented.

  In the embodiment described above, as an example of the slide device, the configuration in which the slide movement is possible by rolling the wheel on the rail has been described, but the present invention is not limited thereto. For example, instead of the wheel, a slide member is provided on the bottom surface of the slide body (including a form in which the bottom surface of the slide body itself is a slide member), and the slide member slides on the rail It is also good.

As described above, the washing machine according to the first aspect of the present invention includes the housing 2 having the opening 2 a on the front side, the water tank 4 provided in the housing 2 and storing washing water, and the water tank A slide device 15 elastically supports 4, a drum 5 rotatably provided in the water tank 4, and a motor 6 rotatably driving the drum 5. The water tank opening 13 is provided on the upper side of the peripheral side of the water tank 4 so as to be openable and closable, and the drum opening 11 is provided on the peripheral side of the drum 5 so as to be openable and closable. The slide device 15 can slide between the drawing position where the water tank 4 is drawn so that the water tank opening 13 is exposed from the housing 2 and the storage position where the water tank 4 is stored in the housing 2 And a damper device for elastically supporting the water tank 4 from below and a spring device for elastically supporting the water tank from above. When the water tank 4 is in the withdrawal position, the water tank 4 is supported by the slide 16 in the housing . The slide device fixing device 38 further includes a slide member fixing device 38 for fixing the slide device 15.
When in position, the slide body 16 is fixed in the housing 2. Furthermore, the rail 20 and the wheel 19 are disposed between the housing 2 and the slide body 16, and the slide body fixing device 38 brings the rail 20 and the wheel 19 into a noncontact state when the water tank 4 is in the storage position. The separation device 42 is provided .

Thereby, the laundry can be taken in and out from above, and the user can easily take out the laundry in an easy posture. Furthermore, when the water tank 4 is pulled out from the housing 2 in order to put the laundry in and out at the end of washing or when the operation is temporarily stopped, the center of gravity of the laundry containing water can be brought closer to the housing 2. That is, since the position of the center of gravity is in the housing 2 and the balance of the center of gravity does not break, a stable installation state can be secured. Also, even when the water tank 4 is in the withdrawal position, the water tank 4 is supported in the housing 2, so the rails 20 and the wheels 19 are accommodated in the housing 2, and foreign matter etc. A smooth sliding motion can be secured without entering. Furthermore, it is not necessary to support the water tank 4 in the pulled out position outside the housing 2 by a support leg or the like that can be grounded. Therefore, even when installed in the waterproof pan for setting the washing machine, the operation of pulling out and storing the water tank 4 can be easily performed, and the usability can be improved.
In addition, since the slide 16 that vibrates during the washing operation is fixed to the housing 2, vibrations of substantially the same cycle occur in the slide 16 and the housing 2 so that the vibration amplitude of the slide 16 is avoided. The housing 2 generates the vibration amplitude of the same cycle. Therefore, it is possible to suppress a slight collision due to the vibration of only one of the slide body 16 and the housing 2. Therefore, damage to the slide device 15 can be prevented, and the slide operation of the slide body 16 can be stably performed. Moreover, the vibration of the slide body 16 can be suppressed by the housing | casing 2 installed in the floor surface. That is, the washing machine according to the present aspect can easily take out the laundry, can prevent damage to the slide device, and can stably perform the slide operation of the slide body.
Furthermore, when the water tank 4 is in the storage position, the slide body 16 side and the housing 2 side can be separated at the time of operation, and the slide device 15 vibrates due to the tapping washing operation at the washing step and high speed rotation at the dewatering step. Damage to the wheels 19 and the rails 20 can be prevented. As a result, stable slide movement is possible over a long period of time. In addition, small collisions between the wheels 19 and the rails 20 due to vibration can be eliminated, and generation of noise during driving can be prevented.
In the washing machine according to the second aspect of the present invention, in particular, in the washing machine according to the first aspect, when the water tank 4 is in the storage position, the slide body 16 is displaced upward by the separating device 42 to Leave from
As a result, a space can be formed between the wheel 19 and the rail 20, and a small collision between the wheel 19 and the rail 20 due to vibration can be eliminated to prevent generation of noise during driving.
The washing machine according to the third aspect of the present invention elastically supports the casing 2 having the opening 2a on the front side, the tub 4 provided in the casing 2 and storing the washing water, and the tub 4 A slide device 15, a drum 5 rotatably provided in the water tank 4, and a motor 6 for rotating the drum 5 are provided. The water tank opening 13 is provided on the upper side of the peripheral side of the water tank 4 so as to be openable and closable, and the drum opening 11 is provided on the peripheral side of the drum 5 so as to be openable and closable. The slide device 15 can slide between the drawing position where the water tank 4 is drawn so that the water tank opening 13 is exposed from the housing 2 and the storage position where the water tank 4 is stored in the housing 2 And a damper device for elastically supporting the water tank 4 from below and a spring device for elastically supporting the water tank from above. When the water tank 4 is in the withdrawal position, the water tank
4 is supported by a slide 16 in the housing. The slide device fixing device 38 further fixes the slide device 15, and the slide member fixing device 38 fixes the slide member 16 in the housing 2 when the water tank 4 is in the storage position. Furthermore, rails 20 and wheels 19 are disposed between the housing 2 and the slide body 16, and when the water tank 4 is in the storage position, the buffer 43 is located between the wheels 19 and the rails 20.
Thereby, the laundry can be taken in and out from above, and the user can easily take out the laundry in an easy posture. Furthermore, when the water tank 4 is pulled out from the housing 2 in order to put the laundry in and out at the end of washing or when the operation is temporarily stopped, the center of gravity of the laundry containing water can be brought closer to the housing 2. That is, since the position of the center of gravity is in the housing 2 and the balance of the center of gravity does not break, a stable installation state can be secured. Also, even when the water tank 4 is in the withdrawal position, the water tank 4 is supported in the housing 2, so the rails 20 and the wheels 19 are accommodated in the housing 2, and foreign matter etc. A smooth sliding motion can be secured without entering. Furthermore, it is not necessary to support the water tank 4 in the pulled out position outside the housing 2 by a support leg or the like that can be grounded. Therefore, even when installed in the waterproof pan for setting the washing machine, the operation of pulling out and storing the water tank 4 can be easily performed, and the usability can be improved.
In addition, since the slide 16 that vibrates during the washing operation is fixed to the housing 2, vibrations of substantially the same cycle occur in the slide 16 and the housing 2 so that the vibration amplitude of the slide 16 is avoided. The housing 2 generates the vibration amplitude of the same cycle. Therefore, it is possible to suppress a slight collision due to the vibration of only one of the slide body 16 and the housing 2. Therefore, damage to the slide device 15 can be prevented, and the slide operation of the slide body 16 can be stably performed. Moreover, the vibration of the slide body 16 can be suppressed by the housing | casing 2 installed in the floor surface. That is, the washing machine according to the present aspect can easily take out the laundry, can prevent damage to the slide device, and can stably perform the slide operation of the slide body.
Furthermore, the shock absorber 43 can absorb the vibration of the wheel 19 due to the tapping washing operation in the washing process and the high speed rotation in the dewatering process, and the generation of the noise during the operation can be prevented.

In the washing machine according to the fourth aspect of the present invention, in particular, in the washing machine according to the first or third aspect , the slide device 15 has a gap 23 between it and the front face of the water tank 4 to leave the water tank 4 outside. It has the front door 24 which covers from the front, and the front door 24 obstruct | occludes the opening part 2a of the housing | casing 2 when the water tank 4 is in a storage position.

  Thereby, it is possible to prevent the vibration of the water tank 4 due to the tapping washing operation in the washing process and the high speed rotation in the dewatering process from being transmitted to the front door 24 which can be touched by the user. Further, during the washing operation, the opening 2 a of the housing 2 can be closed by the front door 24, and the electrical parts and the movable part can be shielded safely from the outside of the housing 2.

In the washing machine according to the fifth aspect of the present invention, in particular, in the washing machine according to the first or third aspect , the motor 6 is provided inside the slide body 16 or behind the slide body 16.

  Thereby, the installation stability at the time of withdrawal of the water tank 4 can be improved by the motor 6 which is a heavy load. Further, it becomes easy to rotationally drive the drum 5 through the drum rotation shaft 5 a passing through the through hole provided at the rear of the water tank 4. This makes it easy to provide metal reinforcement (mechanism case) provided in the water tank 4 at the rear of the water tank 4 in order to increase the strength around the drum rotation shaft 5a. Therefore, the weight of metal reinforcement can be used to improve the installation stability of the washing machine.

The washing machine according to the sixth aspect of the present invention is, in particular, the washing machine according to the first or third aspect , wherein the housing 2 is provided with the front upper wall 2b disposed above the opening 2a, and the opening When the water tank 4 is in the withdrawal position, the spring device 18 is covered from the front by the front upper wall 2b, and the damper device 17 from the front by the front lower wall 2c. Cover.

  Thus, when the water tank 4 is moved to the pulling out position, the user carelessly contacts movable members such as the damper device 17 and the spring device 18 which move to the opening 2 a side of the housing 2 together with the slide body 16. Can be prevented. Furthermore, it is not necessary to enclose the damper device 17 and the spring device 18 together with the water tank 4 in a cabinet or the like, and the user can safely operate in proximity to the water tank 4 when loading and unloading laundry. Further, by providing the front lower wall 2 c, a space in the height direction is formed between the floor surface and the water tank 4 drawn from the housing 2. Therefore, even when the laundry basket or the like is placed on the floor surface in front of the washing machine, the contact between the water tank 4 and the laundry basket or the like due to the withdrawal operation of the water tank 4 can be prevented. Therefore, the problem that the laundry basket etc. is caught between the floor surface and the water tank 4 can be avoided.

In the washing machine according to the seventh aspect of the present invention, particularly in the washing machine according to the first or third aspect , the slide body fixing device 38 fixes the slide body 16 in the housing 2 by the start operation of the washing operation. .

  By this, it is possible to minimize the fixing operation of the slide body 16 which needs to slide frequently due to forgetting to put in the laundry before washing operation, forgetting to take out the laundry after washing operation, etc. The durability of the device 38 can be improved.

  As described above, the washing machine according to the present invention can easily take out the laundry and can secure a stable installation state when the water tank is pulled out from the housing, and therefore, is useful as a washing machine. It is.

Reference Signs List 2 housing 2a opening 4 water tank 5 drum 6 motor 11 drum opening 13 water tank opening 15 slide device 16 slide body 17 damper device 18 spring device 38 slide body fixing device

Claims (7)

A housing provided with an opening on the front side,
A water tank provided in the housing and storing wash water;
A slide device elastically supporting the water tank;
A drum rotatably provided in the water tank, a motor for rotatably driving the drum, and a water tank opening provided openably and closably at an upper portion of a circumferential side surface of the water tank;
And a drum opening portion which is provided on the circumferential side surface of the drum so as to be openable and closable, for taking in and out the laundry.
The slide device is
The water tank is movable in the front-rear direction between a drawing position where the water tank is drawn so that the water tank opening is exposed from the housing and a storage position where the water tank is stored in the housing Slide body,
A damper device for elastically supporting the water tank from below;
And a spring device for elastically supporting the water tank from above,
When the water tank is in the withdrawal position, the water tank is supported by the slide body in the housing ,
The apparatus further comprises a slide body fixing device for fixing the slide device,
The slide body fixing device fixes the slide body in the housing when the water tank is in the storage position,
Rails and wheels are disposed between the housing and the slide body,
The sliding body fixing device includes a separation device that brings the rail and the wheel out of contact when the water tank is in the storage position . The washing machine according to claim 1, wherein the slide body is displaced upward by the separation device when the water tank is in the storage position, and the wheel is separated from the rail. A housing provided with an opening on the front side,
A water tank provided in the housing and storing wash water;
A slide device elastically supporting the water tank;
A drum rotatably provided in the water tank, and a motor rotatably driving the drum;
A water tank opening provided so as to be openable and closable at an upper portion of a circumferential side surface of the water tank;
And a drum opening portion which is provided on the circumferential side surface of the drum so as to be openable and closable, for taking in and out laundry
The slide device is
The water tank is movable in the front-rear direction between a drawing position where the water tank is drawn so that the water tank opening is exposed from the housing and a storage position where the water tank is stored in the housing Slide body,
A damper device for elastically supporting the water tank from below;
And a spring device for elastically supporting the water tank from above,
When the water tank is in the withdrawal position, the water tank is supported by the slide body in the housing,
The apparatus further comprises a slide body fixing device for fixing the slide device,
The slide body fixing device fixes the slide body in the housing when the water tank is in the storage position,
Rails, wheels, and shock absorbers are disposed between the housing and the slide body,
A washing machine wherein the buffer is located between the wheel and the rail when the water tank is in the storage position. The slide device has a front door that covers the water tank from the outside with a gap between the slide device and the front surface of the water tank,
The washing machine according to claim 1 or 3, wherein the front door closes the opening of the housing when the water tank is in the storage position. The washing machine according to claim 1 or 3 , wherein the motor is provided inside the slide body or behind the slide body. The housing has a front upper wall disposed above the opening and a front lower wall disposed below the opening.
When the tub is in its extended position, the washing machine according to claim 1 or 3 wherein before the wall and covering said spring device from the front, for covering from the front the damper device in the front lower wall. The washing machine according to claim 1 or 3 , wherein the slide body fixing device fixes the slide body in the housing by a start operation of a washing operation.

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