WO2017000881A1 - 滚筒洗衣机 - Google Patents

滚筒洗衣机 Download PDF

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Publication number
WO2017000881A1
WO2017000881A1 PCT/CN2016/087625 CN2016087625W WO2017000881A1 WO 2017000881 A1 WO2017000881 A1 WO 2017000881A1 CN 2016087625 W CN2016087625 W CN 2016087625W WO 2017000881 A1 WO2017000881 A1 WO 2017000881A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
drum
clutch
pulley
driving
Prior art date
Application number
PCT/CN2016/087625
Other languages
English (en)
French (fr)
Inventor
广田弘美
中本重阳
Original Assignee
海尔亚洲株式会社
青岛海尔洗衣机有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 海尔亚洲株式会社, 青岛海尔洗衣机有限公司 filed Critical 海尔亚洲株式会社
Priority to EP16817245.0A priority Critical patent/EP3315646B1/en
Priority to CN201680028320.5A priority patent/CN107614776B/zh
Priority to US15/739,176 priority patent/US10597812B2/en
Priority to KR1020187002128A priority patent/KR102009186B1/ko
Publication of WO2017000881A1 publication Critical patent/WO2017000881A1/zh

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/06—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about an inclined axis

Definitions

  • the present invention relates to a drum washing machine.
  • the drum washing machine can be continuously carried out from laundry to drying, or can be washed without drying.
  • the drum washing machine rotates the washing machine by the baffle provided in the drum by rotating the drum of the horizontal axis type in the outer cylinder in which the water is stored in the bottom, and falls the laundry to the inner peripheral surface of the drum. To wash the laundry.
  • the drum washing machine is less likely to have a smaller mechanical force acting on the laundry than the fully automatic washing machine that rotates the pulsator in the washing and dewatering tub to wash the laundry, and the washing performance is easily lowered.
  • the driving unit that rotates the drum and the rotating body can be configured, for example, to include a driving motor for the drum and a driving motor for the rotating body, and the rotation of the driving motor for the drum is transmitted to the rotating shaft of the drum by the belt and the pulley.
  • the drum is rotated, and the rotation of the drive motor for the rotary body is transmitted to the rotary shaft of the rotary body by the belt and the pulley to rotate the rotary body (see Patent Document 1).
  • Patent Document 1 Japanese Patent Publication No. 03-280992
  • the driving portion since the belt and the pulley can be used by
  • the simple structure of the speed reduction mechanism is such that the drum and the rotating body have a difference in rotational speed, and thus the reliability is high in terms of failure or the like as compared with the case of using a speed reduction mechanism composed of a gear.
  • two drive motors are used to rotate the drum and the rotating body, so that it is difficult to construct the driving portion at low cost.
  • the present invention has been made in view of the above problems, and an object thereof is to provide a drum washing machine capable of rotating a drum and a rotating body by a driving portion having low cost and high reliability.
  • a drum washing machine includes: an outer cylinder disposed in the casing; and a drum disposed in the outer cylinder and rotatable about a horizontal axis or an inclined axis inclined with respect to a horizontal direction; Disposed in the drum, the surface has a protrusion contacting the laundry; and a driving portion that rotates the drum and the rotating body.
  • the driving portion includes: a driving motor; a first pulley fixed to a rotating shaft of the drum; a second pulley fixed to a rotating shaft of the rotating body; and a first motor pulley fixed at the a motor shaft of the drive motor coupled to the first pulley via a first drive belt; a second motor pulley coupled to the second pulley via a second drive belt; and a clutch mechanism portion in the first drive configuration and
  • the driving form of the driving unit is switched between the second driving modes, wherein the first driving form is to connect the motor such that the rotation energy of the motor shaft is transmitted to the second motor pulley a shaft and the second motor pulley, a driving form in which the drum and the rotating body rotate at mutually different rotational speeds as the driving motor rotates; the second driving form refers to A driving form in which the rotation of the motor shaft is not transmitted to the second motor pulley to release the connection between the motor shaft and the second motor pulley.
  • the drum and the rotating body are caused to have a difference in rotational speed by using a simple structure of the speed reducing mechanism composed of the belt and the pulley, the malfunction and the like are compared with the case of using the speed reducing mechanism constituted by the gear. It can improve the reliability of the drive unit. Further, since the drum and the rotating body can be rotated by one driving motor, the driving portion can be configured at low cost.
  • the clutch mechanism portion has a structure acting between the motor shaft of the drive motor and the second motor pulley
  • the second mechanism with the second motor pulley is used with the clutch mechanism portion.
  • the structure of the clutch mechanism portion can be reduced in size and cost can be suppressed.
  • the clutch mechanism portion may have a structure including a clutch portion and a moving mechanism portion, wherein the clutch portion is movable to the first position and the second position, the first position being referred to a position in which the rotation of the motor shaft is transmitted to the second motor pulley to connect the motor shaft and the second motor pulley, and the second position is such that rotation of the motor shaft is not transmitted to the first
  • the two motor pulleys cancel the position of the connection between the motor shaft and the second motor pulley; the moving mechanism portion moves the clutch portion between the first position and the second position.
  • a clutch mechanism portion can be realized.
  • the clutch portion and the movement mechanism portion that moves the clutch portion can be used.
  • the drive form of the drive unit is well switched between the first drive mode and the second drive mode.
  • the clutch portion can be configured to be movable in the axial direction of the motor shaft with respect to the motor shaft and rotatable together with the motor shaft, and has an engaging portion.
  • the second motor pulley can have a structure having an engaged portion that engages with the engaging portion when the clutch portion is moved to the first position by the moving mechanism portion. .
  • the clutch portion in the first driving mode, the clutch portion is moved to the first position by the moving mechanism portion, and the engaging portion is engaged with the engaged portion, whereby the rotation of the motor shaft, that is, the drive motor is transmitted to the first The state of the two motor pulleys.
  • the clutch portion in the second drive mode, the clutch portion is moved to the second position by the moving mechanism portion, and the engaging portion is disengaged from the engaged portion, whereby the rotation of the drive motor is not transmitted to the second motor pulley. status.
  • the clutch mechanism portion may have a configuration including an enclosing portion that surrounds the clutch portion so that the clutch portion can freely rotate.
  • the moving mechanism portion is coupled to the surrounding portion.
  • the rotating clutch portion can be moved in the axial direction using the non-rotating moving mechanism portion.
  • the drive motor may be configured to be fixed to the outer tube via an anti-vibration member.
  • the moving mechanism portion is fixed to the drive motor.
  • the second motor pulley may be configured to be rotatably supported by the motor shaft.
  • the motor shaft also serves as a fulcrum that rotatably supports the second motor pulley. Therefore, since it is not necessary to separately provide the fulcrum, the cost can be reduced, and the shaft alignment with the motor shaft which needs to be performed when the fulcrum is provided is not required, and the assembly operation of the drive portion becomes easy.
  • FIG. 1 is a side cross-sectional view showing a configuration of a drum washing machine according to an embodiment.
  • FIG. 2 is a view for explaining a configuration of a drive unit according to the embodiment.
  • FIG 3 is a view for explaining a configuration of a drive unit according to an embodiment.
  • FIG. 4 is a view for explaining a configuration of a drive unit according to an embodiment.
  • FIG. 5 is a view for explaining a configuration of a drive unit according to an embodiment.
  • FIG. 6 is a view for explaining a configuration of a drive unit according to an embodiment.
  • FIG. 7 is a view for explaining a configuration of a clutch mechanism portion according to Modification 1.
  • FIG. 8 is a view for explaining a configuration of a clutch mechanism portion according to Modification 1.
  • FIG. 9 is a view for explaining a configuration of a clutch mechanism portion according to Modification 1.
  • FIG. 10 is a view for explaining a configuration of a clutch mechanism portion according to Modification 2.
  • 10 casing; 20: outer cylinder; 22: drum; 24: rotating body; 24a: protruding portion; 30: driving portion; 100: driving motor; 200: first rotating shaft; 300: second rotating shaft; : drum deceleration mechanism portion; 510: first pulley; 520: first motor pulley; 530: first transmission belt; 600: wing reduction mechanism portion; 610: second pulley; 620: second motor pulley; : second transmission belt; 623: spline (engaged portion); 700: clutch mechanism portion; 710: clutch body; 711: clutch portion; 712: enclosure portion; 715: first spline (engagement portion); : clutch lever; 730: rod support; 740: rod drive; 750: mounting plate; M1: moving mechanism.
  • drum washing machine which does not have a drying function, which is an embodiment of the drum washing machine of the present invention, will be described with reference to the drawings.
  • FIG. 1 is a side cross-sectional view showing the structure of a drum washing machine 1.
  • the drum washing machine 1 is provided with a casing 10 that constitutes an appearance.
  • the front surface 10a of the casing 10 is inclined from the center portion to the upper portion, and the laundry inlet 11 is formed on the inclined surface.
  • the inlet 11 is covered by a door 12 that is freely opened and closed.
  • the outer cylinder 20 is elastically supported by a plurality of dampers 21.
  • a drum 22 is rotatably disposed in the outer cylinder 20.
  • the outer cylinder 20 and the rear surface side of the drum 22 are inclined so as to be lower than the horizontal direction. Thereby, the drum 22 rotates centering on the inclination axis inclined with respect to the horizontal direction.
  • the inclination angle of the outer cylinder 20 and the drum 22 can be set to about 10 to 20 degrees.
  • the opening 20a of the front surface of the outer cylinder 20 and the opening 22a of the front surface of the drum 22 face the input port 11 and are connected to the input port 11 It is closed by the door 12.
  • three lifting ribs 23 are provided at substantially equal intervals in the circumferential direction.
  • a rotating body 24 is rotatably disposed at a rear portion of the drum 22.
  • the rotating body 24 has a substantially disk shape.
  • a plurality of projecting portions 24a radially extending from the center portion are formed on the surface of the rotating body 24.
  • the rotating body 24 rotates coaxially with the drum 22.
  • a drive unit 30 that generates torque for driving the drum 22 and the rotating body 24 is disposed behind the outer cylinder 20.
  • the drive unit 30 rotates the drum 22 and the rotating body 24 in the same direction at different rotational speeds during the washing process and the rinsing process.
  • the driving unit 30 rotates the drum 22 at a rotation speed smaller than the gravity by the centrifugal force applied to the laundry in the drum 22, and rotates the rotating body 24 at a rotation speed faster than the rotation speed of the drum 22. .
  • the driving portion 30 rotates the drum 22 by the centrifugal force of the laundry applied to the drum 22 to be much larger than the rotational speed of gravity, and does not rotate by the generated torque.
  • the body 24 rotates.
  • the rotating body 24 is in a state of being freely rotatable in the drum 22.
  • the detailed structure of the drive unit 30 will be described later.
  • a drain port portion 20b is formed at the bottom of the outer cylinder 20.
  • a drain valve 40 is provided in the drain port portion 20b.
  • the drain valve 40 is connected to the drain hose 41. When the drain valve 40 is opened, the water stored in the outer cylinder 20 is discharged to the outside through the drain hose 41.
  • a detergent box 50 is disposed in the front upper portion of the casing 10.
  • the detergent container 50a containing the detergent is accommodated in the detergent box 50 so as to be freely extracted from the front.
  • the detergent box 50 is connected to the water supply valve 51 disposed at the rear upper portion in the casing 10 through the water supply hose 52. Further, the detergent box 50 is connected to the upper portion of the outer cylinder 20 through a water injection pipe 53.
  • the water supply valve 51 is opened, tap water from the faucet is supplied into the outer cylinder 20 through the water supply hose 52, the detergent box 50, and the water injection pipe 53. At this time, the detergent contained in the detergent container 50a is supplied into the outer cylinder 20 along the water flow.
  • FIG. 2 to 6 are views for explaining the configuration of the drive unit 30.
  • FIG. 2 is a longitudinal cross-sectional view showing the configuration of the drive unit 30.
  • Fig. 3(a) is a view of the lower portion of the outer cylinder 20 as seen from the rear
  • Fig. 3(b) is a cross-sectional view taken along line A-A' of Fig. 3(a).
  • 4(a) and 5(a) are cross-sectional views taken along line B-B' of Fig. 3(a)
  • Figs. 4(b) and 5(b) are longitudinal cross-sectional views of the peripheral portion of the motor shaft 120.
  • Figures 4(a) and (b) show The drive mode of the drive unit 30 is switched to the state in which the drum unit is driven, and FIGS.
  • FIG. 5(a) and 5(b) show the state in which the drive mode of the drive unit 30 is switched to the two-axis drive mode.
  • Fig. 6(a) is a rear view of the second motor pulley 620
  • Fig. 6(b) is a front view of the clutch portion 711
  • Fig. 6(c) is a front view of the front end portion of the motor shaft 120. It should be noted that in FIG. 3(a), illustration of the first belt 530 and the second belt 630 is omitted.
  • the drive unit 30 includes a drive motor 100, a first rotating shaft 200, a second rotating shaft 300, a bearing unit 400, a drum reduction mechanism unit 500, a wing reduction mechanism unit 600, and a clutch mechanism unit 700.
  • the drive motor 100 generates torque for driving the drum 22 and the rotating body 24.
  • the drive motor 100 is, for example, an outer rotor type DC brushless motor, and a motor shaft 120 connected to the rotor in the casing 110 extends rearward from the casing 110.
  • front mounting bosses 111 are formed on the left and right sides of the front side, and rear mounting bosses 112 are formed on the left and right sides of the rear side.
  • a front fixing portion 25 corresponding to the front mounting boss 111 and a rear fixing portion 26 corresponding to the rear mounting boss 112 are formed at the bottom of the outer cylinder 20 at the bottom of the outer cylinder 20, a front fixing portion 25 corresponding to the front mounting boss 111 and a rear fixing portion 26 corresponding to the rear mounting boss 112 are formed.
  • the front mounting boss 111 and the rear mounting boss 112 are formed with insertion holes 111a and 112a through which the vibration-proof member 113 and the mounting screw 114 pass.
  • a mounting hole 25a into which the vibration-proof member 113 and the mounting screw 114 are inserted, and a screw hole 25b to which the mounting screw 114 is fixed are formed in the front fixing portion 25.
  • An insertion hole 26a into which the vibration-proof member 113 is inserted is formed in the rear fixing portion 26.
  • a shaft 26b is formed on the bottom surface of the insertion hole 26a.
  • the vibration-proof member 113 is made of an elastic material such as rubber, and has a through hole 113a formed at the center thereof.
  • the mounting screw 114 is fixed to the screw hole 25b of the front fixing portion 25 through the through hole 113a of the vibration-proof member 113. Further, the vibration-proof member 113 is inserted into the insertion hole 112a of the rear mounting boss 112 and the insertion hole 26a of the rear fixing portion 26. At this time, the through hole 113a of the vibration isolating member 113 is inserted into the shaft 26b of the rear fixing portion 26. Thus, the drive motor 100 is fixed to the outer cylinder 20 via the vibration-proof member 113.
  • the rear fixing portion 26 may be set to have the same structure as the front fixing portion 25, and The projection 112 and the rear fixing portion 26 are fixed by the mounting screws 114.
  • the first rotating shaft 200 has a hollow shape. Inside the first rotating shaft 200, a first sliding bearing 211 and a second sliding bearing 212 are respectively disposed at the front and the rear, and a mechanical shaft seal is disposed at the front end portion. 213.
  • the second rotating shaft 300 is enclosed in the first rotating shaft 200.
  • the front portion of the second rotating shaft 300 protrudes forward from the first rotating shaft 200, and the rear portion of the second rotating shaft 300 protrudes rearward from the first rotating shaft 200.
  • the outer peripheral surface of the second rotating shaft 300 is received by the first sliding bearing 211 and the second sliding bearing 212, and smoothly rotates in the first rotating shaft 200. Further, water can be prevented from entering between the second rotating shaft 300 and the first rotating shaft 200 by the mechanical shaft seal 213.
  • a substantially cylindrical bearing portion 410 is provided at the center portion. Inside the bearing portion 410, a first rolling bearing 411 and a second rolling bearing 412 are provided at the front portion and the rear portion, respectively, and a mechanical shaft seal 413 is provided at the front end portion. The outer peripheral surface of the first rotating shaft 200 is received by the first rolling bearing 411 and the second rolling bearing 412, and smoothly rotates in the bearing portion 410. Further, water can be prevented from entering between the first rotating shaft 200 and the bearing portion 410 by the mechanical shaft seal 413. Further, in the bearing unit 400, a fixing flange portion 420 is formed around the bearing portion 410.
  • the bearing unit 400 is fixed to the rear surface of the outer cylinder 20 by a fixing flange portion 420 by a fixing method such as screw stopper.
  • a fixing method such as screw stopper.
  • the second rotating shaft 300 and the first rotating shaft 200 enter the inside of the outer cylinder 20.
  • the drum 22 is fixed to the first rotating shaft 200 by a screw (not shown), and the rotating body 24 is fixed to the second rotating shaft 300 by a screw 310.
  • the drum reduction mechanism portion 500 includes a first pulley 510, a first motor pulley 520, and a first transmission belt 530.
  • the rotation of the drive motor 100 is decelerated in accordance with the reduction ratio determined by the outer diameter ratio of the first pulley 510 and the first motor pulley 520, and is transmitted to the first rotary shaft 200.
  • the first pulley 510 is formed in a dish shape in which the front surface is opened, and includes a pulley portion 511 and a fixing portion 512 having an outer diameter smaller than that of the pulley portion 511.
  • a fixing protrusion 513 is formed at the center portion.
  • the first pulley 510 is fixed to the rear end portion of the first rotating shaft 200 by fixing the fixing protrusion 513 to the first rotating shaft 200.
  • the rear end portion of the bearing portion 410 is housed inside the pulley portion 511 which is a recess 514 which is recessed rearward.
  • the first motor pulley 520 is mounted at the root of the motor shaft 120 of the drive motor 100.
  • the first transmission belt 530 is disposed between the first pulley 510 and the first motor pulley 520.
  • the wing reduction mechanism portion 600 includes a second pulley 610, a second motor pulley 620, and a second transmission belt 630.
  • the rotation of the drive motor 100 is decelerated in accordance with the reduction ratio determined by the outer diameter ratio of the second pulley 610 and the second motor pulley 620, and is transmitted to the second rotary shaft 300. Since the outer diameter of the first motor pulley 520 and the outer diameter of the second motor pulley 620 are equal, the outer diameter of the second pulley 610 is smaller than the outer diameter of the pulley portion 511 of the first pulley 510, and thus the wing reduction mechanism The reduction ratio of the portion 600 is smaller than the reduction ratio of the drum reduction mechanism portion 500.
  • a fixing protrusion 611 is formed at the center portion.
  • the second pulley 610 is fixed to the rear end portion of the second rotating shaft 300 by fixing the fixing protrusion 611 to the second rotating shaft 300.
  • the second motor pulley 620 is rotatably supported by the motor shaft 120 of the drive motor 100. That is, as shown in FIGS. 4(b) and 5(b), the second motor pulley 620 is attached to a substantially central portion of the motor shaft 120 via the front and rear rolling bearings 621 and 622. The second motor pulley 620 smoothly rotates with respect to the motor shaft 120 through the rolling bearings 621, 622.
  • a spline 623 is formed over the entire circumference of the outer peripheral surface of the rear end portion.
  • the spline 623 corresponds to the engaged portion of the present invention.
  • the clutch mechanism unit 700 switches the driving form of the driving unit 30 between the two-axis driving mode and the drum unit driving mode, wherein the two-axis driving mode is to transmit the rotation energy of the motor shaft 120 to the second motor pulley.
  • the second motor pulley 620 and the motor shaft 120 are coupled to drive the drum 22 and the rotating body 24 to rotate at different rotational speeds with the rotation of the driving motor 100;
  • the drum single driving mode means that The connection of the second motor pulley 620 and the motor shaft 120 is released in such a manner that the rotation of the motor shaft 120 is not transmitted to the second motor pulley 620, so that the drum 22 rotates with the rotation of the drive motor 100 and the rotating body 24 is presented.
  • the two-axis drive mode corresponds to the first drive mode of the present invention
  • the drum single drive mode corresponds to the second drive mode of the present invention.
  • the clutch mechanism portion 700 includes a clutch body 710, a clutch lever 720, a lever support portion 730, a lever driving device 740, and a mounting plate 750.
  • the clutch body 710 is disposed at the front end portion of the motor shaft 120 so as to be positioned behind the second motor pulley 620. As shown in FIGS. 4(b) and 5(b), the clutch body 710 includes a clutch portion 711, an enclosing portion 712, and a rolling bearing 713.
  • the clutch portion 711 is configured to have a substantially cylindrical shape, and the outer diameter of the distal end portion 711a is larger than the outer diameter of the main body portion 711b behind the distal end portion 711a.
  • At the front end 711a is formed with an engagement recess 714 having an inner diameter substantially equal to the outer diameter of the rear end portion of the second motor pulley 620. As shown in FIG.
  • a first spline 715 is formed on the inner circumferential surface of the engagement recess 714 over the entire circumference. Further, a second spline 716 is formed on the inner circumferential surface of the main body portion 711b over the entire circumference. The first spline 715 corresponds to the engaging portion of the present invention.
  • a spline 121 is formed on the outer peripheral surface over the entire circumference.
  • the front and rear dimensions of the spline 121 are set to be larger than the front and rear dimensions of the second spline 716.
  • the second spline 716 of the clutch portion 711 is engaged with the spline 121 of the motor shaft 120.
  • the clutch portion 711 is movable in the axial direction of the motor shaft 120 with respect to the motor shaft 120 and can be combined with the motor shaft 120. The state of rotation.
  • the surrounding portion 712 is formed in an annular shape, and surrounds the central portion of the clutch portion 711 so that the clutch portion 711 can freely rotate.
  • a rolling bearing 713 is interposed between the clutch portion 711 and the surrounding portion 712, and the clutch portion 711 is smoothly rotated with respect to the surrounding portion 712 by the rolling bearing 713.
  • the upper portion of the surrounding portion 712 is formed as a flat surface, and the upper shaft portion 717a is formed on the flat surface.
  • the lower portion of the surrounding portion 712 is also formed as a flat surface, and the lower shaft portion 717b is formed on the flat surface.
  • the clutch lever 720, the lever support portion 730, the lever driving device 740, and the mounting plate 750 constitute a moving mechanism portion M1.
  • the moving mechanism portion M1 moves the clutch body 710 to the first position and the second position as will be described later, wherein the first position connects the motor shaft 120 in such a manner as to transmit the rotation of the motor shaft 120 to the second motor pulley 620.
  • the position of the second motor pulley 620 which is a position for releasing the connection of the motor shaft 120 and the second motor pulley 620 such that the rotation of the motor shaft 120 is not transmitted to the second motor pulley 620.
  • the clutch lever 720 includes a substantially " ⁇ "-shaped head portion 721 along the outer peripheral surface of the surrounding portion 712 and a stem portion 722 extending from the head portion 721.
  • an upper slit 721a and a lower slit 721b are formed at the upper and lower end portions, respectively.
  • the head portion 721 and the shaft portion 717a are accommodated in the upper slit 721a, and the lower shaft portion 717b is received in the lower slit 721b so as to be coupled to the surrounding portion 712. Thereby, the head 721 is rotatable relative to the surrounding portion 712.
  • the rod portion 722 is composed of an upper member 722a and a lower member 722b that are opposed to each other by a predetermined distance, and a coupling member 722c that connects the upper member 722a and the lower member 722b.
  • Upper guide holes 723a and lower guide holes 723b are formed, respectively.
  • the upper guide hole 723a and the lower guide hole 723b are elongated holes in the left-right direction such that the end portion on the side of the clutch body 710 is located slightly forward of the end on the side of the lever driving device 740, with respect to the rod portion 722.
  • the long side direction is formed slightly obliquely.
  • the lever support portion 730 has a support shaft 731 extending in the vertical direction, and supports the lever portion 722 of the clutch lever 720 so as to be rotatable about the support shaft 731.
  • the lever driving device 740 includes a torque motor 741, a cam 742, a movable lever 743, and a coupling lever 744.
  • the cam 742 has a disk shape and is rotated about a horizontal axis by the torque of the torque motor 741.
  • a cam shaft 742a is formed on the upper surface of the cam 742.
  • an upper guide shaft 743a that protrudes upward and a lower guide shaft 743b that protrudes downward are formed at one end portion, and a coupling shaft 743c that protrudes rearward is formed at the other end portion.
  • One end of the movable lever 743 passes between the upper member 722a and the lower member 722b of the clutch lever 720, the upper guide shaft 743a is inserted into the upper guide hole 723a, and the lower guide shaft 743b is inserted into the lower guide hole 723b.
  • the movable lever 743 is guided by a guide cylinder 745 provided to the torque motor 741 so as to be movable in a direction perpendicular to the axial direction of the motor shaft 120.
  • One end of the connecting rod 744 is rotatably coupled to the connecting shaft 743c of the movable lever 743, and the other end is rotatably coupled to the cam shaft 742a of the cam 742.
  • the rod support portion 730 and the rod drive device 740 are fixed to the mounting plate 750.
  • the mounting plate 750 is fixed to the outer cylinder 20 by a plurality of screws 760.
  • the clutch mechanism unit 700 is switched from the state shown in FIG. 4 to the state shown in FIG. 5 . That is, as shown in FIG. 5(a), the cam 742 is rotated by the torque motor 741 so that the cam shaft 742a is closest to the clutch body 710. Thereby, the movable lever 743 moves in proximity to the clutch body 710, and the upper guide shaft 743a and the lower guide shaft 743b of the movable lever 743 have the upper guide hole 723a and the lower guide hole 723b from the end of the lever drive device 740 side, respectively. Move to the end on the clutch body 710 side.
  • the clutch lever 720 moves forward with the head portion 721.
  • the center of the support shaft 731 rotates, and the clutch body 710 coupled to the head portion 721 moves forward.
  • the first spline 715 of the clutch portion 711 and the spline 623 of the second motor pulley 620 are engaged.
  • the rotation of the drive motor 100 is transmitted to the first rotating shaft 200 via the drum reduction mechanism unit 500, and the drum 22 fixed to the first rotating shaft 200 is rotated.
  • the drum 22 is rotated at a rotation speed at which the reduction ratio of the drum reduction mechanism portion 500 is reduced at the rotation speed of the drive motor 100.
  • the reduction ratio of the wing reduction mechanism unit 600 is smaller than the reduction ratio of the drum reduction mechanism unit 500, the rotary body 24 rotates in the same direction as the drum 22 at a rotation speed faster than the drum 22.
  • the clutch lever 720 is coupled to the surrounding portion 712 of the clutch portion 711 that is freely rotated. Therefore, even if the clutch portion 711 rotates, the rotation is generated. The torque is also hardly transmitted to the clutch lever 720.
  • the clutch mechanism unit 700 is switched from the state shown in FIG. 5 to the state shown in FIG. 4 . That is, as shown in FIG. 4(a), the cam 742 is rotated by the torque motor 741 such that the cam shaft 742a is farthest from the clutch body 710. Thereby, the movable lever 743 moves away from the clutch body 710, and the upper guide shaft 743a and the lower guide shaft 743b of the movable lever 743 have the upper guide hole 723a and the lower guide hole 723b from the end of the clutch body 710 side, respectively. Move to the end of the rod drive 740 side.
  • the clutch lever 720 rotates around the support shaft 731 so that the head portion 721 moves rearward, and the clutch body 710 coupled to the head portion 721 moves rearward. Thereby, the first spline 715 of the clutch portion 711 is disengaged from the spline 623 of the second motor pulley 620.
  • the drum washing machine 1 performs a washing operation in various operation modes.
  • the washing operation includes a washing process, an intermediate dehydration process, a rinsing process, and a final dehydration process.
  • the driving form of the driving unit 30 is switched to the two-axis driving mode.
  • the drive motor 100 alternately performs the right rotation and the left rotation in a state where the water is stored to a predetermined water level that does not reach the lower edge of the input port 11.
  • the drum 22 and the rotating body 24 alternately perform the right rotation and the left rotation in a state where the rotation speed of the rotating body 24 is faster than the rotation speed of the drum 22.
  • the rotational speed of the drum 22 is set to a rotational speed at which the centrifugal force acting on the laundry in the drum 22 is smaller than the gravity.
  • the laundry in the drum 22 is lifted up by the lifting ribs 23 and falls to the inner circumferential surface of the drum 22.
  • the laundry comes into contact with the projecting portion 24a of the rotating rotating body 24, and the laundry is rubbed by the projecting portion 24a or agitated by the projecting portion 24a. Thereby, the laundry is washed or rinsed.
  • the mechanical force generated by the rotating body 24 is applied to the laundry due to the mechanical force generated by the rotation of the drum 22, so that the cleaning performance can be expected to be improved.
  • the driving form of the driving unit 30 is switched to the drum unit driving form.
  • the drive motor 100 rotates in one-way high speed, and the drum 22 rotates with the centrifugal force acting on the laundry in the drum 22 being much larger than the rotational speed of gravity.
  • the centrifugal force the laundry is dropped onto the inner peripheral surface of the drum 22 for dehydration.
  • the rotating body 24 is not rotated by the drive motor 100, and is in a state in which the rotation is free.
  • the drum 22 and the rotating body 24 can be made to have a difference in rotational speed by using a simple structure of the speed reducing mechanism constituted by the belt and the pulley, the malfunction is caused as compared with the case of using the speed reducing mechanism constituted by the gear.
  • the reliability of the drive unit 30 can be improved.
  • the drive unit 30 can be configured at low cost.
  • the rotating body 24 when the driving mode is switched to the drum unit driving mode, the rotating body 24 is not rotated by the driving motor 100, so that the laundry attached to the inner circumferential surface of the drum 22 is not The rotating body 24 is actively stirred to dehydrate the laundry well.
  • the clutch mechanism portion 700 since the clutch mechanism portion 700 employs a structure that acts between the motor shaft 120 of the drive motor 100 and the second motor pulley 620, the clutch mechanism portion 700 acts on the second motor pulley. Compared with the case of the structure between the second second pulley 610 and the second rotating shaft 300, the structure of the clutch mechanism portion 700 can be reduced in size and cost can be suppressed.
  • the drive motor 100 is set to be larger than the first pulley 510 and the second belt.
  • the wheel 610 is further located below, and the clutch mechanism portion 700 is provided on the side of the drive motor 100, so that a clutch mechanism can be provided in a space between the outer cylinder 20 that is enlarged by the inclination of the drum 22 and the outer cylinder 20 and the rear surface of the casing 10. Department 700.
  • the clutch mechanism portion 700 can be disposed so as not to protrude rearward than the second pulley 610. Therefore, it is possible to prevent the size of the casing 10 from increasing in the front-rear direction in accordance with the arrangement of the clutch mechanism portion 700.
  • a clutch mechanism unit 700 that can move the clutch body 710 and the clutch body 710 when the drive unit 30 is configured to use a speed reduction mechanism including a belt and a pulley.
  • the mechanism unit M1 switches the drive form of the drive unit 30 between the two-axis drive mode and the drum unit drive mode on the drive motor 100 side.
  • the surrounding portion 712 that surrounds the clutch portion 711 in a freely rotatable state is provided, and the surrounding portion 712 is coupled to the clutch lever 720. Therefore, the rotating mechanism portion M1 can be rotated.
  • the clutch portion 711 moves in the axial direction of the motor shaft 120.
  • the motor shaft 120 also serves as a support shaft that rotatably supports the second motor pulley 620. Therefore, since it is not necessary to separately provide the fulcrum, the cost can be reduced, and the shaft alignment with the motor shaft 120 performed without providing the fulcrum is required, and the assembly operation of the drive portion 30 becomes easy.
  • the clutch mechanism portion 700 is fixed to the drive motor 100 with respect to the clutch body 710, and the moving mechanism portion M1 is fixed to the outer cylinder 20.
  • the clutch body 810 and the moving mechanism portion M2 are fixed to the drive motor 100 together.
  • FIG. 7 to 9 are views for explaining the configuration of the clutch mechanism unit 800 according to the first modification.
  • FIG. 7 is a view of the drive motor 100 to which the clutch mechanism portion 800 is attached as seen from the rear.
  • 8(a) and 9(a) are cross-sectional views taken along line C-C' of Fig. 7.
  • Fig. 8(a) shows a state in which the driving form of the driving unit 30 is switched to the two-axis driving mode
  • Fig. 9(a) shows a state in which the driving form of the driving unit 30 is switched to the drum single driving form.
  • Fig. 8(b) is a cross-sectional view taken along line D-D' of Fig. 8(a)
  • Fig. 9(b) is a cross-sectional view taken along line E-E' of Fig. 9(a).
  • the clutch mechanism portion 800 includes a clutch body 810, a clutch lever 820, a lever support portion 830, a lever driving device 840, and a housing 850.
  • the clutch lever 820, the lever support portion 830, the lever driving device 840, and the housing 850 constitute a moving mechanism portion M2.
  • the clutch body 810 is disposed at a distal end portion of the motor shaft 120 and includes a clutch portion 811, an enclosure portion 812, and a rolling bearing 813.
  • the clutch portion 811 has the same configuration as the clutch portion 711 of the above-described embodiment, and a first spline 815 is formed on the inner circumferential surface of the engagement recessed portion 814 of the distal end portion 811a, and a second surface is formed on the inner circumferential surface of the main body portion 811b. Spline 816.
  • the surrounding portion 812 has a flat surface formed on the left and right portions, and a shaft portion 817 is formed on each flat surface.
  • a rolling bearing 813 is interposed between the clutch portion 811 and the surrounding portion 812.
  • the clutch lever 820 has a substantially Y-shape, and its upper end portion is rotatably coupled to the shaft portion 817 of the surrounding portion 812.
  • the lever support portion 830 includes left and right arms 831 integrally formed with the housing 850 and a support shaft 832 that is stretched over the left and right arms 831.
  • the lever support portion 830 supports the clutch lever 820 so as to be rotatable about the support shaft 832.
  • the rod drive 840 includes a torque motor 841 and a cam 842.
  • the cam 842 has a disk shape and is rotated about a vertical axis by the torque of the torque motor 841.
  • On the upper surface of the cam 842 a cam groove 842a on the ring is formed.
  • the center P of the cam groove 842a is slightly displaced rearward with respect to the center O of the cam 842.
  • the lower end portion of the clutch lever 820 is inserted into the cam groove 842a.
  • the housing 850 includes a pulley housing portion 851 and a motor housing portion 852 that are fixed to the housing 110 of the drive motor 100 by screws 860.
  • the first motor pulley 520 and the second motor pulley 620 are housed in the pulley housing portion 851.
  • an opening portion 853 through which the first transmission belt 530 and the second transmission belt 630 pass is formed on the left and right sides.
  • the lever driving device 840 is housed in the motor housing portion 852, and is fixed in the motor housing portion 852 by a fixing device such as a screw.
  • a hook portion 854 is formed at an upper portion of the motor housing portion 852.
  • a spring 870 is placed between the hook portion 854 and the mounting portion 821 of the clutch lever 820. Spring 870 pulls the lower portion of clutch lever 820 forward.
  • the clutch mechanism unit 800 is switched from the state shown in FIG. 9 to the state shown in FIG. 8 . That is, as shown in FIG. 8, the cam 842 is rotated by the torque motor 841 in such a manner that the cam groove 842a is moved to the rearmost side. The lower end portion of the clutch lever 820 is guided to the cam groove 842a to move rearward against the tensile force of the spring 870. The clutch lever 820 rotates around the support shaft 832, the upper end portion of the clutch lever 820 moves forward, and the clutch body 810 coupled to the upper end portion moves forward.
  • the clutch mechanism unit 800 is switched from the state shown in FIG. 8 to the state shown in FIG. 9 . That is, as shown in FIG. 9, the cam 842 is rotated by the torque motor 841 in such a manner that the cam groove 842a is moved to the forefront. The lower end portion of the clutch lever 820 is guided to move forward by the cam groove 842a while being pulled by the spring 870. The clutch lever 820 rotates around the support shaft 832, the upper end portion of the clutch lever 820 moves rearward, and the clutch body 810 coupled to the upper end portion moves rearward.
  • the first spline 815 of the clutch portion 811 is disengaged from the spline 623 of the second motor pulley 620, and the motor shaft 120 and the second motor pulley 620 are coupled so that the rotation of the motor shaft 120 is not transmitted to the second motor belt. The way of the wheel 620 is released.
  • the drive motor 100 is fixed to the outer cylinder 20 via the vibration-proof member 113, the vibration of the outer cylinder 20 is not easily transmitted to the drive motor 100. On the other hand, during the washing operation, there is a possibility that a difference in motion occurs between the outer cylinder 20 and the drive motor 100.
  • FIG. 10 is a view for explaining a configuration of the clutch mechanism unit 900 according to the second modification, and is a longitudinal cross-sectional view of a peripheral portion of the motor shaft 120.
  • Fig. 10 (a) shows a state in which the driving form of the driving unit 30 is switched to the drum unit driving mode
  • Fig. 10 (b) shows a state in which the driving form of the driving unit 30 is switched to the two-axis driving mode.
  • the moving mechanism portion M3 is fixed to the drive motor 100.
  • the clutch mechanism portion 900 includes a clutch body 910, a clutch driving device 920, and a device holding portion 930.
  • the clutch driving device 920 and the device holding portion 930 constitute a moving mechanism portion M3.
  • the clutch body 910 is disposed at a distal end portion of the motor shaft 120 and includes a clutch portion 911, an enclosure portion 912, and a rolling bearing 913.
  • the clutch portion 911 has the same configuration as the clutch portion 711 of the above-described embodiment, and a first spline 915 is formed on the inner circumferential surface of the engagement recess portion 914 of the distal end portion 911a, and a second surface is formed on the inner circumferential surface of the main body portion 911b. Spline 916.
  • the surrounding portion 912 includes a substantially cylindrical main body portion 912a that surrounds the clutch portion 911, and an annular disk-shaped suction disk 912b formed at the rear of the main body portion 912a.
  • the surrounding portion 912 is formed of a magnetic material such as iron.
  • a rolling bearing 913 is interposed between the clutch portion 911 and the main body portion 912a of the surrounding portion 912.
  • the clutch driving device 920 includes a cylindrical outer casing 921 that surrounds the clutch body 910.
  • An annular coil 922 is attached to the outer casing 921, and an annular permanent magnet 923 is attached to the rear surface so as to be close to the coil 922.
  • the suction disk 912b of the surrounding portion 912 faces the rear surface of the outer casing 921.
  • the outer casing 921 houses a coil spring 924.
  • the coil spring 924 has a repulsive force that causes the suction disk 912b to move away from the rear surface of the outer casing 921.
  • the device holding portion 930 has a cylindrical shape and is fixed to the casing 110 of the drive motor 100 by a plurality of screws 940 so as to accommodate the first motor pulley 520 and the second motor pulley 620 therein.
  • opening portions 931 through which the first transmission belt 530 and the second transmission belt 630 pass are formed on the left and right sides.
  • the outer casing 921 of the clutch driving device 920 is fixed to the rear end portion of the device holding portion 930 by a plurality of screws 950.
  • the clutch mechanism unit 900 is switched from the state shown in FIG. 10(a) to the state shown in FIG. 10(b). That is, the coil 922 of the clutch driving device 920 is energized with a polarity that enhances the suction force of the permanent magnet 923. The suction disk 912b is attracted by the permanent magnet 923, and the clutch body 910 moves forward against the repulsive force of the coil spring 924.
  • the clutch body 910 moves until the suction disk 912b is attracted to the permanent magnet 923, the coil 922 is stopped from being energized.
  • the magnetic force of the permanent magnet 923 is set such that the suction force of the suction disk 912b adsorbed to the permanent magnet 923 when the coil 922 is not energized is larger than the repulsive force of the coil spring 924. Therefore, even if the energization to the coil 922 is stopped, the clutch body 910 can be held at the position after the movement by the suction force of the permanent magnet 923.
  • the clutch mechanism unit 900 is switched from the state shown in FIG. 10(b) to the state shown in FIG. 10(a). status. That is, the coil 922 of the clutch driving device 920 is energized with a polarity that weakens the suction force of the permanent magnet 923. Since the repulsive force of the coil spring 924 outweighs the suction force of the permanent magnet 923, the suction disk 912b is pushed rearward by the coil spring 924, and the clutch body 910 moves rearward.
  • the first spline 915 of the clutch portion 911 is disengaged from the spline 623 of the second motor pulley 620, and the motor shaft 120 and the second motor pulley 620 are coupled so that the rotation of the motor shaft 120 is not transmitted to the second motor. The way of the pulley 620 is released.
  • the clutch body 910 When the clutch body 910 is moved to a position where the first spline 915 is disengaged from the spline 623, energization to the coil 922 is stopped. Since the suction force of the suction magnet 923 is less than the repulsive force of the coil spring 924 at the position where the coil 922 is not energized, the clutch body 910 can be held at the moved position even if the energization of the coil 922 is stopped.
  • the drive form of the drive unit 30 is switched to the drum unit drive mode.
  • the driving form is switched to the structure in which the drum unit is driven.
  • the rotating body 24 In the case where the rotating body 24 is not rotatable relative to the drum 22, on the rear side of the drum 22, when the laundry is pressed by the rotating body 24 and is stirred by the lifting rib 23, the laundry is not in the drum. 22 is dropped near the upper side, and is attached to the rotating body 24 to be rotated. In this case, on the rear side of the drum 22, since the laundry is substantially rotated only once during the rotation of the drum 22, the front side and the rear side of the drum 22 are liable to cause a difference in the rotation of the laundry, so that the laundry is kinked.
  • the laundry is less likely to be damaged by the kinking and damage due to friction. Therefore, according to the present modification, it is possible to wash or rinse the fragile laundry while suppressing the occurrence of damage.
  • the clutch portion 711 and the second motor pulley 620 are fixed in the rotational direction by the engagement of the first spline 715 of the clutch portion 711 and the spline 623 of the second motor pulley 620.
  • the configuration in which the clutch portion 711 is engaged with the second motor pulley 620 is not limited to the above embodiment, and may be another configuration.
  • the second motor pulley 620 and the motor shaft 120 are disposed between Two rolling bearings 621, 622. Further, a rolling bearing 713 is provided between the clutch portion 711 and the surrounding portion 712. However, these rolling bearings 621, 622, 713 can also be replaced with sliding bearings.
  • the drum 22 is rotated about the tilt axis that is inclined with respect to the horizontal direction.
  • the drum washing machine 1 may be configured such that the drum 22 rotates around the horizontal axis.
  • drum washing machine 1 of the above embodiment does not have a drying function
  • the present invention can also be applied to a drum washing machine having a drying function, that is, a drum type washing and drying machine.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

一种滚筒洗衣机，其能通过低价并且可靠度高的驱动部使滚筒以及旋转体旋转。其中，驱动部(30)包括：驱动电机(100)；第一带轮(510)，固定在滚筒(22)的旋转轴；第二带轮(610)，固定在旋转体(24)的旋转轴；第一电机带轮(520)，固定在驱动电机(100)的电机轴(120)，经由第一传动带(530)与第一带轮(510)连结；第二电机带轮(620)，经由第二传动带(630)与第二带轮(610)连结；以及离合器机构部(700)，在二轴驱动形态和滚筒单体驱动形态之间切换驱动部(30)的驱动形态，其中，二轴驱动形态是指将电机轴(120)和第二电机带轮(620)连结，随着驱动电机(100)的旋转使滚筒(22)和旋转体(24)以相互不同的旋转速度旋转的驱动形态；滚筒单体驱动形态是指解除电机轴(120)和第二电机带轮(620)的连结的驱动形态。

Description

滚筒洗衣机 技术领域
本发明涉及一种滚筒洗衣机。该滚筒洗衣机既可以连续地进行从洗衣到干衣，也可以进行洗衣但不进行干衣。
背景技术
以往，滚筒洗衣机通过使横轴型的滚筒在底部蓄有水的外筒内旋转，由设置在滚筒内的提升筋(baffle)将洗涤物举起落下，将洗涤物摔到滚筒的内周面来洗涤洗涤物。
对于像这样通过提升筋搅拌洗涤物的结构而言，洗涤物彼此之间很难互相缠绕或互相摩擦。因此，滚筒洗衣机与在洗涤脱水桶内使波轮(pulsator)旋转来洗涤洗涤物的全自动洗衣机相比，作用于洗涤物的机械力容易变小，清洗性能容易降低。
因此，对于滚筒洗衣机而言，为了提高清洗性能，可以采用下述结构：在滚筒的端部，设置表面具有突状部的旋转体，并在进行洗涤、漂洗时，使滚筒和旋转体以相互不同的旋转速度旋转。
使滚筒和旋转体旋转的驱动部例如能设置为下述结构：具备滚筒用的驱动电机和旋转体用的驱动电机，通过传动带和带轮将滚筒用的驱动电机的旋转传递给滚筒的旋转轴使滚筒旋转，并且通过传动带和带轮将旋转体用的驱动电机的旋转传递给旋转体的旋转轴从而使旋转体旋转(参照专利文献1)。
现有技术文献
专利文献
专利文献1：日本特开平03-280992号公报
发明所要解决的问题
将驱动部设为如上所述的结构的情况下，由于能通过使用由传动带和带轮 构成的减速机构的简单结构，使滚筒和旋转体产生旋转速度差，因而与使用由齿轮构成的减速机构的情况相比，在故障等方面可靠性高。然而，使用了两个驱动电机以使滚筒和旋转体旋转，因而难以低价地构成驱动部。
发明内容
本发明是鉴于该问题而完成的技术方案，其目的在于，提供一种滚筒洗衣机，其能通过低价并且可靠度高的驱动部使滚筒和旋转体旋转。
用于解决问题的方案
本发明的主要方式的滚筒洗衣机具备：外筒，配置在机壳内；滚筒，配置在所述外筒内，能以水平轴或相对于水平方向倾斜的倾斜轴为中心进行旋转；旋转体，配置在所述滚筒内，表面具有与洗涤物接触的突状部；以及驱动部，使所述滚筒和所述旋转体旋转。此处，所述驱动部包括：驱动电机；第一带轮，固定在所述滚筒的旋转轴；第二带轮，固定在所述旋转体的旋转轴；第一电机带轮，固定在所述驱动电机的电机轴，经由第一传动带与所述第一带轮连结；第二电机带轮，经由第二传动带与所述第二带轮连结；以及离合器机构部，在第一驱动形态和第二驱动形态之间切换所述驱动部的驱动形态，其中，所述第一驱动形态是指，以使所述电机轴的旋转能传递至所述第二电机带轮的方式连结所述电机轴和所述第二电机带轮，随着所述驱动电机的旋转使所述滚筒和所述旋转体以相互不同的旋转速度旋转的驱动形态；所述第二驱动形态是指，以使所述电机轴的旋转不传递至所述第二电机带轮的方式解除所述电机轴和所述第二电机带轮的连结的驱动形态。
通过上述的结构，由于能通过使用由传动带和带轮构成的减速机构的简单结构，使滚筒和旋转体产生旋转速度差，因而与使用由齿轮构成的减速机构的情况相比，在故障等方面，能提高驱动部的可靠性。并且，由于能用一个驱动电机使滚筒和旋转体旋转，因而能低价地构成驱动部。
此外，通过上述的结构，在脱水时，当驱动形态切换至第二驱动形态时，旋转体不会被驱动电机旋转。由此，贴在滚筒的内周面的洗涤物不会被旋转体积极地搅拌，能良好地将洗涤物脱水。
进而，通过上述的结构，由于离合器机构部采用作用在驱动电机的电机轴与第二电机带轮之间的结构，因而与离合器机构部采用作用在比第二电机带轮更大的第二带轮与旋转体的旋转轴之间的结构的情况相比，能实现离合器机构部的结构的小型化，抑制成本。
在本方式的滚筒洗衣机中，所述离合器机构部可以采用如下结构：包括离合器部和移动机构部，其中，离合器部能移动至第一位置和第二位置，第一位置是指以使所述电机轴的旋转传递至所述第二电机带轮的方式连结所述电机轴和所述第二电机带轮的位置，第二位置是指以使所述电机轴的旋转不传递至所述第二电机带轮的方式解除所述电机轴和所述第二电机带轮的连结的位置；移动机构部使所述离合器部在所述第一位置和所述第二位置之间移动。
通过上述的结构，能实现一种离合器机构部，在将驱动部设为使用由带和带轮构成的减速机构的结构的情况下，能通过离合器部和使该离合器部移动的移动机构部，在驱动电机侧，将驱动部的驱动形态在第一驱动形态和第二驱动形态之间良好地切换。采用上述结构的情况下，进而，所述离合器部能采用能相对于所述电机轴沿该电机轴的轴线方向移动并能与所述电机轴一起旋转，并且具有卡合部的结构。在这种情况下，所述第二电机带轮能采用具有在所述离合器部通过所述移动机构部移动至所述第一位置时与所述卡合部卡合的被卡合部的结构。
通过上述的结构，在第一驱动形态中，通过移动机构部，离合器部被移动至第一位置，卡合部与被卡合部卡合，由此呈电机轴即驱动电机的旋转传递至第二电机带轮的状态。另一方面，在第二驱动形态中，通过移动机构部，离合器部被移动至第二位置，卡合部脱离被卡合部，由此呈驱动电机的旋转不会传递至第二电机带轮的状态。
采用上述结构的情况下，进而，所述离合器机构部可以采用包括以使所述离合器部自由旋转的方式将所述离合器部包围的包围部的结构。在这种情况下，所述移动机构部与所述包围部连结。
当采用这样的结构时，由于设置了不旋转的包围部，并将移动机构部连结至包围部，因而能使用不旋转的移动机构部使旋转的离合器部沿轴线方向移动。
在离合器机构部由离合器部和移动机构部构成的情况下，进而，所述驱动电机可以采用经由防振构件固定在所述外筒的结构。在这种情况下，所述移动机构部固定在所述驱动电机。
在驱动电机经由防振构件固定在外筒的情况下，外筒的振动难以传递至驱动电机，另一方面，外筒与驱动电机之间会产生活动差。在上述的结构中，由于移动机构部固定于驱动电机侧，因而即使外筒与驱动电机之间产生活动差，也很难对离合器部和移动机构部的连结部分施加负荷。因此，能提高离合器机构部的可靠性。
在本方式的滚筒洗衣机中，所述第二电机带轮可以采用自由旋转地支承于所述电机轴的结构。
通过上述的结构，电机轴兼作自由旋转地支承第二电机带轮的支轴。因此，由于不需要另外设置支轴，因此能减少成本，并且不需要在设置有支轴时需要进行的与电机轴之间的轴对准，驱动部的组装操作变得容易。
发明效果
通过本发明，能提供一种滚筒洗衣机，其能通过低价并且可靠度高的驱动部使滚筒以及旋转体旋转。
本发明的效果以及意义由如下所示的实施方式的说明来进一步明确。但是，以下的实施方式只不过是实施本发明时的一个例示，本发明不受以下的实施方式中记载的内容的任何限制。
附图说明
图1是表示实施方式所涉及的滚筒洗衣机的结构的侧剖图。
图2是用于对实施方式所涉及的驱动部的结构进行说明的图。
图3是用于对实施方式所涉及的驱动部的结构进行说明的图。
图4是用于对实施方式所涉及的驱动部的结构进行说明的图。
图5是用于对实施方式所涉及的驱动部的结构进行说明的图。
图6是用于对实施方式所涉及的驱动部的结构进行说明的图。
图7是用于对变更例1所涉及的离合器机构部的结构进行说明的图。
图8是用于对变更例1所涉及的离合器机构部的结构进行说明的图。
图9是用于对变更例1所涉及的离合器机构部的结构进行说明的图。
图10是用于对变更例2所涉及的离合器机构部的结构进行说明的图。
附图标记说明
10：机壳；20：外筒；22：滚筒；24：旋转体；24a：突状部；30：驱动部；100：驱动电机；200：第一旋转轴；300：第二旋转轴；500：滚筒减速机构部；510：第一带轮；520：第一电机带轮；530：第一传动带；600：翼减速机构部；610：第二带轮；620：第二电机带轮；630：第二传动带；623：花键(被卡合部)；700：离合器机构部；710：离合器体；711：离合器部；712：包围部；715：第一花键(卡合部)；720：离合器杆；730：杆支承部；740：杆驱动装置；750：安装板；M1：移动机构部。
具体实施方式
以下，参照附图，对本发明的滚筒洗衣机的一实施方式即不具有干衣功能的滚筒洗衣机进行说明。
图1是表示滚筒洗衣机1的结构的侧剖图。
滚筒洗衣机1具备构成外观的机壳10。机壳10的前表面10a从中央部倾斜到上部，在倾斜的面上形成有洗涤物的投入口11。投入口11由自由开闭的门12遮盖。
在机壳10内，由多个减振器21弹性地支承有外筒20。在外筒20内自由旋转地配置有滚筒22。外筒20以及滚筒22以后表面侧相对于水平方向变低的方式倾斜。由此，滚筒22以相对于水平方向倾斜的倾斜轴为中心进行旋转。外筒20以及滚筒22的倾斜角度可以设定为10～20度左右。外筒20的前表面的开口部20a以及滚筒22的前表面的开口部22a与投入口11对置，并与投入口11一 起由门12来关闭。在滚筒22的周面，形成有许多个脱水孔22b。进而，在滚筒22的内周面，在周向上以大致相等的间隔设有三个提升筋23。
在滚筒22的后部，自由旋转地配置有旋转体24。旋转体24具有大致圆盘形状。在旋转体24的表面，形成有从中央部放射状延伸的多个突状部24a。旋转体24与滚筒22同轴旋转。
在外筒20的后方，配置有产生驱动滚筒22和旋转体24的转矩的驱动部30。驱动部30在进行洗涤过程以及漂洗过程时，使滚筒22和旋转体24以不同的旋转速度同向旋转。具体地说，驱动部30使滚筒22以施加到滚筒22内的洗涤物的离心力变得比重力小的旋转速度进行旋转，使旋转体24以比滚筒22的旋转速度更快的旋转速度进行旋转。
另一方面，驱动部30在进行脱水过程时，使滚筒22以施加到滚筒22内的洗涤物的离心力变得远远大于重力的旋转速度进行旋转，另一方面不通过产生的转矩使旋转体24旋转。旋转体24在滚筒22内呈旋转自由的状态。驱动部30的详细结构在后面进行说明。
在外筒20的底部形成有排水口部20b。在排水口部20b设置有排水阀40。排水阀40与排水软管41连接。当排水阀40打开时，蓄于外筒20内的水就会通过排水软管41向机外排出。
在机壳10内的前方上部配置有洗涤剂盒50。收容有洗涤剂的洗涤剂容器50a从前方自由抽出地收容于洗涤剂盒50。洗涤剂盒50通过给水软管52与配置在机壳10内的后方上部的给水阀51连接。此外，洗涤剂盒50通过注水管53与外筒20的上部连接。当给水阀51打开时，来自水龙头的自来水通过给水软管52、洗涤剂盒50以及注水管53被供给至外筒20内。此时，收容在洗涤剂容器50a中的洗涤剂顺着水流被供给至外筒20内。
接着，对驱动部30的结构进行详细说明。
图2至图6是用于对驱动部30的结构进行说明的图。图2是表示驱动部30的结构的纵剖图。图3(a)是从后方观察外筒20的下部的图，图3(b)是图3(a)的A-A′剖视图。图4(a)以及图5(a)是图3(a)的B-B′剖视图，图4(b)以及图5(b)是电机轴120的周边部的纵剖图。图4(a)以及(b)表示 驱动部30的驱动形态切换至滚筒单体驱动形态的状态，图5(a)以及(b)表示驱动部30的驱动形态切换至二轴驱动形态的状态。图6(a)是第二电机带轮620的后视图，图6(b)是离合器部711的主视图，图6(c)是电机轴120前端部的主视图。需要说明的是，在图3(a)中，省略了第一传动带530和第二传动带630的图示。
驱动部30包括：驱动电机100、第一旋转轴200、第二旋转轴300、轴承单元400、滚筒减速机构部500、翼减速机构部600、以及离合器机构部700。
驱动电机100产生用于驱动滚筒22和旋转体24的转矩。驱动电机100是例如外转子型DC无刷电机，在机壳110内与转子连接的电机轴120从机壳110向后方延伸。
在机壳110的上部，在前侧的左右形成有前安装凸起111，在后侧的左右处形成有后安装凸起112。另一方面，在外筒20的底部，形成有与前安装凸起111对应的前固定部25和与后安装凸起112对应的后固定部26。如图3(b)所示，在前安装凸起111和后安装凸起112，形成有供防振构件113和安装螺钉114通过的插通孔111a、112a。在前固定部25，形成有供防振构件113和安装螺钉114插入的安装孔25a和供安装螺钉114进行固定的螺孔25b。在后固定部26，形成有供防振构件113插入的插入孔26a。在插入孔26a的底面形成有轴26b。防振构件113由橡胶等弹性材料构成，在其中央处形成有贯通孔113a。
在防振构件113插入前安装凸起111的插通孔111a和前固定部25的安装孔25a之后，安装螺钉114通过防振构件113的贯通孔113a固定于前固定部25的螺孔25b。此外，防振构件113插入后安装凸起112的插通孔112a和后固定部26的插入孔26a。此时，防振构件113的贯通孔113a插入后固定部26的轴26b。这样，驱动电机100经由防振构件113固定于外筒20。
需要说明的是，虽然在本实施方式中，只有前安装凸起111和前固定部25由安装螺钉114固定，但是也可以将后固定部26设定为与前固定部25相同的结构，并由安装螺钉114固定后安装凸起112和后固定部26。
第一旋转轴200具有中空形状。在第一旋转轴200的内部，在前部和后部，分别设置有第一滑动轴承211和第二滑动轴承212，在前端部设置有机械轴封 213。
第二旋转轴300内包于第一旋转轴200。第二旋转轴300的前部从第一旋转轴200向前方突出，第二旋转轴300的后部从第一旋转轴200向后方突出。第二旋转轴300的外周面由第一滑动轴承211和第二滑动轴承212承接，在第一旋转轴200内顺利地进行旋转。此外，通过机械轴封213能防止水进入第二旋转轴300与第一旋转轴200之间。
在轴承单元400，在中央部设置有大致圆筒状的轴承部410。在轴承部410的内部，在前部以及后部，分别设置有第一滚动轴承411和第二滚动轴承412，在前端部设置有机械轴封413。第一旋转轴200的外周面由第一滚动轴承411和第二滚动轴承412承接，在轴承部410内顺利地进行旋转。此外，通过机械轴封413能防止水进入第一旋转轴200与轴承部410之间。进而，在轴承单元400，在轴承部410的周围形成有固定凸缘部420。
轴承单元400通过固定凸缘部420，通过螺钉止动等固定方法，固定于外筒20的后表面。在轴承单元400安装于外筒20的状态下，第二旋转轴300和第一旋转轴200进入外筒20的内部。滚筒22通过未图示的螺钉固定在第一旋转轴200，旋转体24通过螺钉310固定在第二旋转轴300。
滚筒减速机构部500包括第一带轮510、第一电机带轮520、以及第一传动带530。驱动电机100的旋转按照由第一带轮510与第一电机带轮520的外径比决定的减速比被减速，传递给第一旋转轴200。
第一带轮510形成为前表面打开的碟状，包括带轮部511和外径比带轮部511小的固定部512。在固定部512，在中央部形成有固定凸起513。通过将固定凸起513固定在第一旋转轴200，使第一带轮510固定在第一旋转轴200的后端部。
在向后方凹陷的凹部514即带轮部511的内部，收容有轴承部410的后端部。由此，由于在驱动部30的前后方向上轴承单元400和第一带轮510重叠，因而驱动部30的前后方向的尺寸缩小了与重叠部分对应的尺寸。
第一电机带轮520安装在驱动电机100的电机轴120的根部。第一传动带530架设在第一带轮510与第一电机带轮520之间。
翼减速机构部600包括第二带轮610、第二电机带轮620、以及第二传动带630。驱动电机100的旋转按照由第二带轮610与第二电机带轮620的外径比决定的减速比被减速，传递给第二旋转轴300。由于第一电机带轮520的外径和第二电机带轮620的外径相等，第二带轮610的外径比第一带轮510的带轮部511的外径小，因此翼减速机构部600的减速比比滚筒减速机构部500的减速比小。
在第二带轮610，在中央部形成有固定凸起611。通过将固定凸起611固定于第二旋转轴300，使第二带轮610固定于第二旋转轴300的后端部。
第二电机带轮620由驱动电机100的电机轴120自由旋转地支承。即，如图4(b)以及图5(b)所示，第二电机带轮620经由前后两个滚动轴承621、622安装于电机轴120的大致中央部。第二电机带轮620通过滚动轴承621、622，相对于电机轴120顺利地进行旋转。
如图6(a)所示，在第二电机带轮620，在后端部的外周面遍及整周地形成有花键623。花键623相当于本发明的被卡合部。
离合器机构部700在二轴驱动形态和滚筒单体驱动形态之间切换驱动部30的驱动形态，其中，二轴驱动形态是指，通过以使电机轴120的旋转能传递给第二电机带轮620的方式连结第二电机带轮620和电机轴120，使滚筒22和旋转体24随着驱动电机100的旋转以相互不同的旋转速度旋转的驱动形态；滚筒单体驱动形态是指，通过以使电机轴120的旋转不传递给第二电机带轮620的方式解除第二电机带轮620和电机轴120的连结，从而使滚筒22随着驱动电机100的旋转而旋转并且使旋转体24呈旋转自由的状态的驱动形态。二轴驱动形态相当于本发明的第一驱动形态，滚筒单体驱动形态相当于本发明的第二驱动形态。
离合器机构部700包括：离合器体710、离合器杆720、杆支承部730、杆驱动装置740、以及安装板750。
离合器体710以位于第二电机带轮620的后方的方式，配置于电机轴120的前端部。如图4(b)以及图5(b)所示，离合器体710包括离合器部711、包围部712、以及滚动轴承713。离合器部711构成为具有大致圆筒形状，并且其前端部711a的外径比前端部711a后方的主体部711b的外径大。在前端部 711a，形成有具有与第二电机带轮620的后端部的外径大致相等的内径的卡合凹部714。如图6(b)所示，在卡合凹部714的内周面，遍及整周地形成有第一花键715。此外，在主体部711b的内周面，遍及整周地形成有第二花键716。第一花键715相当于本发明的卡合部。
如图6(c)所示，在电机轴120的前端部，在外周面，遍及整周地形成有花键121。花键121的前后尺寸设为比第二花键716的前后尺寸大。
离合器部711的第二花键716和电机轴120的花键121卡合，通过该卡合，离合器部711呈能相对于电机轴120沿电机轴120的轴线方向移动并且能与电机轴120一同旋转的状态。
包围部712形成为圆环状，以使离合器部711自由旋转的方式包围离合器部711的中央部。在离合器部711和包围部712之间，夹有滚动轴承713，离合器部711通过该滚动轴承713，相对于包围部712顺利地进行旋转。
包围部712的上部形成为平坦面，在该平坦面形成有上轴部717a。包围部712的下部也形成为平坦面，在该平坦面形成有下轴部717b。
离合器杆720、杆支承部730、杆驱动装置740以及安装板750构成移动机构部M1。移动机构部M1如后所述，使离合器体710移动至第一位置和第二位置，其中，第一位置是以使电机轴120的旋转传递给第二电机带轮620的方式连结电机轴120和第二电机带轮620的位置，第二位置是以使电机轴120的旋转不传递给第二电机带轮620的方式解除电机轴120和第二电机带轮620的连结的位置。
离合器杆720包括沿着包围部712的外周面的大致“コ”字型的头部721和从头部721延伸的杆部722。在头部721，在上下的顶端部处，分别形成有上狭缝721a和下狭缝721b。头部721以上轴部717a收容于上狭缝721a，下轴部717b收容于下狭缝721b的方式与包围部712连结。由此，头部721相对于包围部712可旋转。
杆部722由隔开规定的距离对置的上构件722a和下构件722b、以及连结这些上构件722a和下构件722b的连结构件722c构成。在上构件722a以及下构件722b，在比杆支承部730的支承位置更靠杆驱动装置740侧的相同的位置处， 分别形成有上引导孔723a以及下引导孔723b。上引导孔723a以及下引导孔723b为左右方向上细长的孔，以使离合器体710侧的端部位于比杆驱动装置740侧的端部稍微靠前的位置的方式，相对于杆部722的长边方向稍微倾斜地形成。
杆支承部730具有向上下方向延伸的支轴731，将离合器杆720的杆部722以使其以支轴731为中心可旋转的方式进行支承。
杆驱动装置740包括转矩电机741、凸轮742、可动杆743、以及连结杆744。凸轮742具有圆盘状，通过转矩电机741的转矩绕水平轴进行旋转。在凸轮742的上表面，形成有凸轮轴742a。
在可动杆743，在一端部形成有向上方突出的上引导轴743a和向下方突出的下引导轴743b，在另一端部形成有向后方突出的连结轴743c。可动杆743的一端部通过离合器杆720的上构件722a与下构件722b之间，上引导轴743a插入上引导孔723a，下引导轴743b插入下引导孔723b。可动杆743以能沿与电机轴120的轴线方向垂直的方向移动的方式，由设置于转矩电机741的引导筒745引导。
连结杆744的一端部可旋转地与可动杆743的连结轴743c连结，另一端部可旋转地与凸轮742的凸轮轴742a连结。
杆支承部730以及杆驱动装置740固定在安装板750。安装板750通过多个螺钉760固定在外筒20。
在驱动部30的驱动形态从滚筒单体驱动形态切换至二轴驱动形态的情况下，离合器机构部700从图4所示的状态切换至图5所示的状态。即，如图5(a)所示，以凸轮轴742a最接近离合器体710的方式，凸轮742通过转矩电机741被旋转。由此，可动杆743以接近离合器体710的方式移动，可动杆743的上引导轴743a以及下引导轴743b分别使上引导孔723a以及下引导孔723b从杆驱动装置740侧的端部移动至离合器体710侧的端部。由于上引导孔723a以及下引导孔723b以使离合器体710侧的端部位于比杆驱动装置740侧的端部更靠前方的方式倾斜，因而离合器杆720以头部721向前方移动的方式以支轴731中心进行旋转，与头部721连结的离合器体710向前方移动。由此，离合器部711的第一花键715和第二电机带轮620的花键623卡合。
当第一花键715和花键623卡合时，由于离合器部711和第二电机带轮620在旋转方向上被固定，因此成为能将电机轴120的旋转经由离合器部711传递给第二电机带轮620的状态。在这样的状态下，当驱动电机100进行旋转时，该旋转经由翼减速机构部600传递给第二旋转轴300，固定于第二旋转轴300的旋转体24进行旋转。旋转体24以驱动电机100的旋转速度按照翼减速机构部600的减速比降低后的旋转速度进行旋转。此外，驱动电机100的旋转经由滚筒减速机构部500传递给第一旋转轴200，固定于第一旋转轴200的滚筒22进行旋转。滚筒22以驱动电机100的旋转速度按照滚筒减速机构部500的减速比降低后的旋转速度进行旋转。如上所述，由于翼减速机构部600的减速比比滚筒减速机构部500的减速比小，因此旋转体24以比滚筒22快的旋转速度与滚筒22同向旋转。
此处，虽然离合器部711与第二电机带轮620一起旋转，但是由于离合器杆720与以自由旋转的状态连结了离合器部711的包围部712连结，因而即使离合器部711进行旋转，该旋转产生的转矩也几乎不会传给离合器杆720。
另一方面，在驱动部30的驱动形态从二轴驱动形态切换至滚筒单体驱动形态的情况下，离合器机构部700从图5所示的状态切换至图4所示的状态。即，如图4(a)所示，以使凸轮轴742a距离离合器体710最远的方式，凸轮742通过转矩电机741被旋转。由此，可动杆743以远离离合器体710的方式进行移动，可动杆743的上引导轴743a以及下引导轴743b分别使上引导孔723a以及下引导孔723b从离合器体710侧的端部移动至杆驱动装置740侧的端部。通过上引导孔723a以及下引导孔723b的倾斜的形状，离合器杆720以头部721向后方移动的方式以支轴731为中心进行旋转，与头部721连结的离合器体710向后方进行移动。由此，离合器部711的第一花键715脱离第二电机带轮620的花键623。
当第一花键715脱离花键623时，成为电机轴120的旋转不能传递到第二电机带轮620的状态。在这样的状态下，当驱动电机100旋转时，该旋转经由滚筒减速机构部500传递给第一旋转轴200，从而滚筒22进行旋转。滚筒22以驱动电机100的旋转速度按照滚筒减速机构部500的减速比降低后的旋转速度同向一体旋转。另一方面，即使驱动电机100进行旋转，由于电机轴120相对 于第二电机带轮620进行空转，驱动电机100的旋转不会传递给第二旋转轴300，因而旋转体24不旋转。由于第二旋转轴300相对于第一旋转轴200可旋转，因此旋转体24成为能自由旋转的状态。
另外，滚筒洗衣机1进行各种运转模式的洗涤运转。洗涤运转包括洗涤过程、中间脱水过程、漂洗过程以及最终脱水过程。
在洗涤过程和漂洗过程中，驱动部30的驱动形态被切换为二轴驱动形态。在外筒20内，在蓄水至未到达投入口11的下边缘的规定水位的状态下，驱动电机100交替进行右旋转和左旋转。由此，滚筒22和旋转体24以旋转体24的旋转速度比滚筒22的旋转速度快的状态，交替进行右旋转和左旋转。此时，滚筒22的旋转速度设定为使作用于滚筒22内的洗涤物的离心力比重力小的旋转速度。
当滚筒22和旋转体24进行旋转时，滚筒22内的洗涤物通过提升筋23举起落下，摔到滚筒22的内周面。除此之外，在滚筒22的后部，洗涤物与旋转的旋转体24的突状部24a接触，洗涤物被突状部24a摩擦或通过突状部24a被搅拌。由此，洗涤物被清洗或漂洗。
这样，在进行洗涤和漂洗时，由于除了滚筒22的旋转产生的机械力，旋转体24产生的机械力也被施加给洗涤物，因此能期待清洗性能的提高。接着，在中间脱水过程和最终脱水过程中，驱动部30的驱动形态被切换为滚筒单体驱动形态。驱动电机100单向高速地进行旋转，滚筒22以作用于滚筒22内的洗涤物的离心力远远大于重力的旋转速度进行旋转。通过离心力的作用，洗涤物被摔到滚筒22的内周面进行脱水。此时，旋转体24不通过驱动电机100进行旋转，成为旋转自由的状态。
这样，在脱水时，由于旋转体24不通过驱动电机100进行旋转，因而贴附于滚筒22的洗涤物不会被旋转体24积极地搅拌，能良好地将洗涤物脱水。
<实施方式的效果>
根据本实施方式，由于通过使用由传动带和带轮构成的减速机构的简单结构，能使滚筒22和旋转体24产生旋转速度差，因而与使用由齿轮构成的减速机构的情况相比，在故障等方面，能提高驱动部30的可靠性。并且，由于能用 一个驱动电机100使滚筒22和旋转体24旋转，因而能低价地构成驱动部30。
进而，根据本实施方式，在脱水时，由于当驱动形态切换至滚筒单体驱动形态时，旋转体24不通过驱动电机100旋转，因而贴附在滚筒22的内周面的洗涤物不会被旋转体24积极地搅拌，能良好地将洗涤物脱水。
进而，根据本实施方式，由于离合器机构部700采用了作用在驱动电机100的电机轴120与第二电机带轮620之间的结构，因而与离合器机构部700采用作用在比第二电机带轮620更大的第二带轮610与第二旋转轴300之间的结构的情况相比，能实现离合器机构部700的结构的小型化，抑制成本。
进而，根据本实施方式，在滚筒22和外筒20以向上方倾斜的方式配置在机壳10内的结构中，由于设定为使驱动电机100配置在比第一带轮510和第二带轮610更靠下方处，并在该驱动电机100侧设置离合器机构部700，因而能在通过滚筒22和外筒20倾斜而扩大的外筒20与机壳10的背面之间的空间设置离合器机构部700。由此，由于能以不比第二带轮610更向后方突出的方式配置离合器机构部700，因此能防止与离合器机构部700的设置相对应，使机壳10的前后方向的尺寸增大。
进而，根据本实施方式，能实现如下的离合器机构部700：在驱动部30采用使用由传动带和带轮构成的减速机构的结构的情况下，能通过离合器体710和使离合器体710移动的移动机构部M1，在驱动电机100侧，在二轴驱动形态与滚筒单体驱动形态之间良好地切换驱动部30的驱动形态。
进而，根据本实施方式，由于设置了以自由旋转的状态包围离合器部711的包围部712，并且设为该包围部712与离合器杆720连结，因而能使用不旋转的移动机构部M1使旋转的离合器部711沿电机轴120的轴线方向移动。
进而，根据本实施方式，电机轴120兼作自由旋转地支承第二电机带轮620的支轴。因此，由于不需要另外设置支轴，因而能减少成本，并且不需要在设置了支轴的情况下进行的与电机轴120之间的轴对准，驱动部30的组装操作变得容易。
以上，关于本发明的实施方式进行了说明，但是本发明不受上述实施方式等的任何限制，此外，本发明的实施方式也可以做上述之外的各种变更。
<变更例1>
在上述实施方式中，对于离合器机构部700，相对于离合器体710固定在驱动电机100，移动机构部M1固定在外筒20。与此相对地，对于本变更例的离合器机构部800，离合器体810和移动机构部M2一起固定在驱动电机100。
图7至图9是用于对变更例1所涉及的离合器机构部800的结构进行说明的图。图7是从后方观察安装有离合器机构部800的驱动电机100的图。图8(a)以及图9(a)是图7的C-C′剖视图。图8(a)表示驱动部30的驱动形态被切换至二轴驱动形态的状态，图9(a)表示驱动部30的驱动形态被切换至滚筒单体驱动形态的状态。图8(b)是图8(a)的D-D′剖视图，图9(b)是图9(a)的E-E′剖视图。
离合器机构部800包括离合器体810、离合器杆820、杆支承部830、杆驱动装置840、以及壳体850。离合器杆820、杆支承部830、杆驱动装置840以及壳体850构成移动机构部M2。
离合器体810配置在电机轴120的顶端部，包括离合器部811、包围部812、以及滚动轴承813。离合器部811具有与上述实施方式的离合器部711相同的结构，在前端部811a的卡合凹部814的内周面形成有第一花键815，并且在主体部811b的内周面形成有第二花键816。
包围部812与上述实施方式的包围部712不同，在左右的部位形成有平坦面，在各平坦面形成有轴部817。在离合器部811与包围部812之间，夹有滚动轴承813。
离合器杆820具有大致Y字形状，其上端部可旋转地与包围部812的轴部817连结。
杆支承部830包括与壳体850一体形成的左右的臂831和架设在左右的臂831的支轴832。杆支承部830对离合器杆820以使其以支轴832为中心可旋转的方式进行支承。
杆驱动装置840包括转矩电机841和凸轮842。凸轮842具有圆盘状，通过转矩电机841的转矩绕垂直轴进行旋转。在凸轮842的上表面，形成有圆环上的凸轮槽842a。凸轮槽842a的中心P相对于凸轮842的中心O稍微向后方错开。 离合器杆820的下端部插入凸轮槽842a内。
壳体850包括带轮收容部851和电机收容部852，通过螺钉860固定在驱动电机100的壳体110。第一电机带轮520和第二电机带轮620收容于带轮收容部851。在带轮收容部851，在左右两侧形成有供第一传动带530和第二传动带630通过的开口部853。杆驱动装置840收容于电机收容部852，通过螺钉等固定装置固定在电机收容部852内。
在电机收容部852的上部形成有钩部854。在钩部854与离合器杆820的安装部821之间架设有弹簧870。弹簧870将离合器杆820的下部拉向前方。
在驱动部30的驱动形态从滚筒单体驱动形态切换至二轴驱动形态的情况下，离合器机构部800从图9所示的状态切换至图8所示的状态。即，如图8所示，凸轮842以使凸轮槽842a移动至最后方的方式，通过转矩电机841被旋转。离合器杆820的下端部被引导至凸轮槽842a，抵抗弹簧870的拉力向后方移动。离合器杆820以支轴832为中心进行旋转，离合器杆820的上端部向前方移动，与该上端部连结的离合器体810向前方移动。由此，离合器部811的第一花键815和第二电机带轮620的花键623卡合，电机轴120和第二电机带轮620以使电机轴120的旋转传递给第二电机带轮620的方式连结。
另一方面，在驱动部30的驱动形态从二轴驱动形态切换至滚筒单体驱动形态的情况下，离合器机构部800从图8所示的状态切换至图9所示的状态。即，如图9所示，凸轮842以使凸轮槽842a移动至最前方的方式通过转矩电机841被旋转。离合器杆820的下端部一边被弹簧870拉动一边被凸轮槽842a引导向前方移动。离合器杆820以支轴832为中心进行旋转，离合器杆820的上端部向后方移动，与该上端部连结的离合器体810向后方移动。由此，离合器部811的第一花键815脱离第二电机带轮620的花键623，电机轴120和第二电机带轮620的连结以使电机轴120的旋转不传递给第二电机带轮620的方式解除。
由于驱动电机100经由防振构件113固定在外筒20，因此外筒20的振动不容易传给驱动电机100。另一方面，在洗涤运转时，外筒20与驱动电机100之间有可能产生活动差。
在本变更例的结构中，由于移动机构部M2固定在驱动电机100侧，因而即 使外筒20与驱动电机100之间产生活动差，也不容易对离合器体810和移动机构部M2的连结部分施加负荷。因此，能提高离合器机构部800的可靠性。
<变更例2>
图10是用于对变更例2所涉及的离合器机构部900的结构进行说明的图，是电机轴120的周边部的纵剖图。图10(a)表示驱动部30的驱动形态被切换至滚筒单体驱动形态的状态，图10(b)表示驱动部30的驱动形态被切换至二轴驱动形态的状态。
在本变更例中，与变更例1相同，移动机构部M3固定在驱动电机100。
离合器机构部900包括离合器体910、离合器驱动装置920、以及装置保持部930。离合器驱动装置920和装置保持部930构成移动机构部M3。
离合器体910配置于电机轴120的顶端部，包括离合器部911、包围部912、以及滚动轴承913。离合器部911具有与上述实施方式的离合器部711相同的结构，在前端部911a的卡合凹部914的内周面形成有第一花键915，并且在主体部911b的内周面形成有第二花键916。
包围部912包括包围离合器部911的大致圆筒状的主体部912a和形成于主体部912a的后方的环形盘状的吸附盘912b。包围部912由铁等磁性材料形成。在离合器部911与包围部912的主体部912a之间，夹有滚动轴承913。
离合器驱动装置920具备包围离合器体910的圆筒状的外壳921。在外壳921，安装有环状的线圈922，并且在后表面，以接近线圈922的方式安装有环状的永磁铁923。包围部912的吸附盘912b与外壳921的后表面对置。外壳921收容有螺旋弹簧924。螺旋弹簧924具有使吸附盘912b离开外壳921的后表面的方向的斥力。
装置保持部930具有圆筒形状，以其内部收容有第一电机带轮520和第二电机带轮620的方式，通过多个螺钉940固定在驱动电机100的机壳110。在装置保持部930，在左右两侧形成有供第一传动带530和第二传动带630通过的开口部931。离合器驱动装置920的外壳921由多个螺钉950固定在装置保持部930的后端部。
在驱动部30的驱动形态从滚筒单体驱动形态切换至二轴驱动形态的情况 下，离合器机构部900从图10(a)所示的状态切换至图10(b)所示的状态。即，离合器驱动装置920的线圈922以使永磁铁923的吸力增强的极性通电。吸附盘912b被永磁铁923所吸引，离合器体910抵抗螺旋弹簧924的斥力向前方移动。由此，离合器部911的第一花键915和第二电机带轮620的花键623卡合，电机轴120和第二电机带轮620以使电机轴120的旋转传递给第二电机带轮620的方式连结。
当离合器体910移动，直至吸附盘912b吸附在永磁铁923时，线圈922被停止通电。永磁铁923的磁力设定为在线圈922未通电时吸附于永磁铁923的吸附盘912b所受的吸力比螺旋弹簧924的斥力更大。因此，即使停止向线圈922通电，离合器体910也能通过永磁铁923的吸力保持在移动后的位置。
另一方面，在驱动部30的驱动形态从二轴驱动形态切换至滚筒单体驱动形态的情况下，离合器机构部900从图10(b)所示的状态切换至图10(a)所示的状态。即，离合器驱动装置920的线圈922以使永磁铁923的吸力减弱的极性通电。由于螺旋弹簧924的斥力胜过永磁铁923的吸力，因此吸附盘912b通过螺旋弹簧924被推向后方，离合器体910向后方移动。由此，离合器部911的第一花键915脱离第二电机带轮620的花键623，电机轴120和第二电机带轮620的连结以使电机轴120的旋转不会传递给第二电机带轮620的方式解除。
当离合器体910移动至第一花键915脱离花键623的位置时，停止向线圈922通电。由于在线圈922不通电时在该位置吸附盘912b受到永磁铁923的吸力变得比螺旋弹簧924的斥力小，因此即使停止向线圈922通电，离合器体910也能保持在移动后的位置。
在本变更例的结构中，与变更例1相同，由于移动机构部M3固定在驱动电机100侧，因而即使外筒20与驱动电机100之间产生活动差，也不容易对离合器体910和移动机构部M3的连结部分施加负荷。因此，能提高离合器机构部900的可靠性。
<其它的变更例>
在上述实施方式中，在中间脱水过程和最终脱水过程中，驱动部30的驱动形态被切换至滚筒单体驱动形态。但是，也可以采用在洗涤过程、漂洗过程中 使滚筒22旋转时，驱动形态被切换至滚筒单体驱动形态的结构。例如，尤其希望在对易损的衣物、有干洗标识的衣物进行洗涤的洗涤模式中进行向滚筒单体驱动形态的切换。
在外筒20内蓄有水的状态下，当驱动电机100以滚筒单体驱动形态进行旋转时，滚筒22进行旋转，洗涤物通过提升筋23被搅拌。
此时，在滚筒22的前侧，由于洗涤物通过提升筋23被举到滚筒22的正上方附近时落下，因而洗涤物在滚筒22旋转一次期间大致旋转两次。另一方面，在滚筒22的后侧，洗涤物容易成为被旋转体24推压的状态。如上所述，由于旋转体24处于能自由旋转的状态，因而在洗涤物被提升筋23搅拌从而旋转时旋转体24也容易和洗涤物一起旋转。由此，即使在滚筒22的后侧，也与前侧相同，洗涤物在滚筒22旋转一次期间大致旋转两次。因此，滚筒22的前侧和后侧不容易产生洗涤物的旋转差，不容易产生旋转差导致的洗涤物的扭结。
需要说明的是，在旋转体24无法相对于滚筒22自由旋转的情况下，在滚筒22的后侧，当洗涤物被旋转体24推压，被提升筋23搅拌时，洗涤物不会在滚筒22的正上方附近落下，而呈贴附于旋转体24进行旋转的状态。这样的话，在滚筒22的后侧，由于洗涤物在滚筒22旋转一次期间大致只旋转一次，因此滚筒22的前侧和后侧容易产生洗涤物的旋转差，使得洗涤物扭结。
此外，在滚筒单体驱动形态下，由于旋转体24不会像二轴驱动形态那样，通过驱动电机100被旋转，因此洗涤物不会被旋转体24摩擦。
这样，在洗涤过程或漂洗过程中，在以滚筒单体驱动形态使驱动电机100动作的情况下，洗涤物不容易因扭结而产生损伤、因摩擦而产生损伤。因此，根据本变更例，能在抑制损伤产生的同时清洗或漂洗易损的衣物。
此外，在上述实施方式中，通过离合器部711的第一花键715和第二电机带轮620的花键623的卡合，离合器部711和第二电机带轮620在旋转方向上被固定。但是，将离合器部711与第二电机带轮620卡合的结构不局限于上述实施方式，也可以为其它结构。例如也可以采用在离合器部711形成突起，并且在第二电机带轮620形成凹陷或孔，突起嵌入到凹陷或孔中的结构。
此外，在上述实施方式中，在第二电机带轮620与电机轴120之间设置有 两个滚动轴承621、622。此外，在离合器部711与包围部712之间设置有滚动轴承713。然而，这些滚动轴承621、622、713也可以置换为滑动轴承。
进而，在上述实施方式中，滚筒22以相对于水平方向倾斜的倾斜轴为中心进行旋转。但是，滚筒洗衣机1也可以采用滚筒22以水平轴为中心进行旋转的结构。
进而，虽然上述实施方式的滚筒洗衣机1不具备干衣功能，但本发明也能用于具备干衣功能的滚筒洗衣机，即滚筒式洗衣干衣机。
此外，本发明的实施方式可以在权利要求书示出的技术思想的范围内适当地进行各种变更。

Claims (6)

  1. 一种滚筒洗衣机，其特征在于，具备：
    外筒，配置在机壳内；
    滚筒，配置在所述外筒内，能以水平轴或相对于水平方向倾斜的倾斜轴为中心进行旋转；
    旋转体，配置在所述滚筒内，表面具有与洗涤物接触的突状部；以及
    驱动部，使所述滚筒和所述旋转体旋转，
    所述驱动部包括：
    驱动电机；
    第一带轮，固定在所述滚筒的旋转轴；
    第二带轮，固定在所述旋转体的旋转轴；
    第一电机带轮，固定在所述驱动电机的电机轴，经由第一传动带与所述第一带轮连结；
    第二电机带轮，经由第二传动带与所述第二带轮连结；以及
    离合器机构部，在第一驱动形态和第二驱动形态之间切换所述驱动部的驱动形态，其中，所述第一驱动形态是指，以使所述电机轴的旋转能传递至所述第二电机带轮的方式连结所述电机轴和所述第二电机带轮，随着所述驱动电机的旋转使所述滚筒和所述旋转体以相互不同的旋转速度旋转的驱动形态；所述第二驱动形态是指，以使所述电机轴的旋转不传递至所述第二电机带轮的方式解除所述电机轴和所述第二电机带轮的连结的驱动形态。
  2. 根据权利要求1所述的滚筒洗衣机，其特征在于，
    所述离合器机构部包括：
    离合器部，能移动至第一位置和第二位置，其中，所述第一位置是指，以使所述电机轴的旋转传递至所述第二电机带轮的方式连结所述电机轴和所述第二电机带轮的位置，所述第二位置是指，以使所述电机轴的旋转不传递至所述 第二电机带轮的方式解除所述电机轴和所述第二电机带轮的连结的位置；以及
    移动机构部，使所述离合器部在所述第一位置和所述第二位置之间移动。
  3. 根据权利要求2所述的滚筒洗衣机，其特征在于，
    所述离合器部能相对于所述电机轴沿该电机轴的轴线方向移动并能与所述电机轴一起旋转，并且具有卡合部，
    所述第二电机带轮具有在所述离合器部通过所述移动机构部移动至所述第一位置时与所述卡合部卡合的被卡合部。
  4. 根据权利要求3所述的滚筒洗衣机，其特征在于，
    所述离合器机构部包括以使所述离合器部自由旋转的方式将所述离合器部包围的包围部，
    所述移动机构部与所述包围部连结。
  5. 根据权利要求2至4的任一项所述的滚筒洗衣机，其特征在于，
    所述驱动电机经由防振构件固定在所述外筒，
    所述移动机构部固定在所述驱动电机。
  6. 根据权利要求1至5的任一项所述的滚筒洗衣机，其特征在于，
    所述第二电机带轮自由旋转地支承在所述电机轴。
PCT/CN2016/087625 2015-06-29 2016-06-29 滚筒洗衣机 WO2017000881A1 (zh)

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