WO2016034115A1 - 滚筒洗衣机 - Google Patents

滚筒洗衣机 Download PDF

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Publication number
WO2016034115A1
WO2016034115A1 PCT/CN2015/088808 CN2015088808W WO2016034115A1 WO 2016034115 A1 WO2016034115 A1 WO 2016034115A1 CN 2015088808 W CN2015088808 W CN 2015088808W WO 2016034115 A1 WO2016034115 A1 WO 2016034115A1
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WO
WIPO (PCT)
Prior art keywords
drum
rotating body
laundry
washing machine
lifting
Prior art date
Application number
PCT/CN2015/088808
Other languages
English (en)
French (fr)
Inventor
广田弘美
竹内晴美
田中启之
辻贵裕
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 US15/508,091 priority Critical patent/US10329702B2/en
Priority to KR1020177009053A priority patent/KR20170049563A/ko
Priority to CN201580047296.5A priority patent/CN106795678B/zh
Priority to EP15839027.8A priority patent/EP3190218B1/en
Publication of WO2016034115A1 publication Critical patent/WO2016034115A1/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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
    • 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
    • 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

Definitions

  • the present invention relates to a drum washing machine.
  • the drum washing machine can be continuously performed from washing to drying, or can be washed without drying.
  • the drum washing machine rotates the drum of the horizontal axis type in the outer tank in which water is stored in the bottom, lifts the laundry by the lifting ribs provided in the drum, and drops the laundry onto the inner circumferential surface of the drum to wash Washing (refer to Patent Document 1).
  • 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 tank to wash the laundry, and the washing performance is liable to lower.
  • the drum washing machine it is possible to adopt a configuration in which a rotating body having a projecting portion on the rear surface of the drum is provided, and the drum and the rotating body are rotated at different rotational speeds during washing and rinsing.
  • the cleaning performance can be improved by rubbing and stirring the laundry by the rotating body.
  • Patent Document 1 Japanese Laid-Open Patent Publication No. 2013-240577
  • an object of the present invention is to provide a drum washing machine capable of sufficiently obtaining a washing effect by a rotating body.
  • a drum washing machine includes: an outer tub disposed in a casing; a drum disposed in the outer tub and rotatable about a horizontal axis; and a rotating body disposed at a rear portion of the drum
  • the surface has a protruding portion in contact with the laundry; and a driving portion that rotates the drum and the rotating body coaxially at mutually different rotational speeds.
  • the drum has a moving unit that moves the laundry in the drum in the direction of the rotating body.
  • the laundry since the laundry can be positioned in the vicinity of the rotating body, the laundry can be easily brought into contact with the rotating body, and the cleaning effect by the rotating body can be sufficiently imparted to the laundry.
  • the structure in which the moving unit includes a lifting rib may be employed, wherein the lifting rib is disposed on an inner circumferential surface of the drum, and the lifting ribs of the lifting ribs are lifted by the rotation of the drum The rising faces are inclined such that the rotating body side lags in the rotation direction of the drum.
  • the rising surface is inclined such that the rotating body side lags in the rotation direction of the drum, the rotating body side becomes low during the washing of the laundry. Therefore, when it is gathered up, the laundry moves toward the rotating body side along the rising surface.
  • the laundry can be tumbling while being close to the vicinity of the rotating body by the lifting ribs. Therefore, the laundry can be easily brought into contact with the rotating body, and the cleaning effect by the rotating body can be sufficiently imparted to the laundry.
  • the lifting rib may be configured to have two such lifting faces respectively corresponding to the right rotation and the left rotation of the drum.
  • the laundry can be brought close to the vicinity of the rotating body regardless of the direction in which the drum rotates in the left and right directions.
  • the moving unit may include a structure including a lifting rib, wherein the lifting rib is provided on an inner circumferential surface of the drum, and is rotatable at an end portion opposite to the rotating body side.
  • the shaft rotates around the center and is inclined to both sides from a state parallel to the horizontal axis.
  • the lifting rib when the drum is rotated to the right and rotated to the left, when the laundry is picked up, the lifting rib is inclined such that the rotating body side becomes lower due to the weight of the laundry. Thereby, the laundry moves toward the rotating body side along the inclination of the lifting rib.
  • the laundry can be tumbling while approaching the vicinity of the rotating body by the lifting ribs, so that the laundry can be easily brought into contact with the rotating body, and the cleaning effect by the rotating body can be sufficiently imparted to the laundry. Further, the laundry can be brought close to the vicinity of the rotating body regardless of the direction in which the drum rotates in the left and right directions.
  • the moving unit may be configured to include an inner circumferential surface of the drum having an inclination such that the diameter thereof increases toward the rear.
  • the laundry can be brought closer to the vicinity of the rotating body by the inclination of the inner circumferential surface of the drum, the laundry can be easily brought into contact with the rotating body, and the laundry can be sufficiently provided by the rotating body. Cleaning effect.
  • Fig. 1 is a side cross-sectional view showing a configuration of a drum washing machine according to an embodiment.
  • Fig. 2 is a cross-sectional view showing a configuration of a driving unit according to an embodiment.
  • FIG 3 is a cross-sectional view showing the configuration of a drive unit according to an embodiment.
  • FIG. 4 is a front view of a rotor showing a configuration of a rotor of a drive motor according to an embodiment.
  • Fig. 5 is an enlarged perspective view showing a rear portion of a bearing unit in which a rack is formed according to an embodiment.
  • 6(a) to 6(c) are views showing a configuration of a clutch body of a clutch mechanism portion according to an embodiment.
  • FIG. 7(a) to 7(d) are views showing the structure of a lifting rib according to an embodiment.
  • 8(a) and 8(b) are diagrams schematically showing the movement of the laundry when the rib is tumbling during the washing process or the rinsing process according to the embodiment.
  • Fig. 9 is a cross-sectional view showing the structure of a drum according to a first modification.
  • FIG. 10 are views showing a configuration of a lifting rib unit of Modification 1.
  • FIGS. 11(a) and 11(b) are diagrams schematically showing the movement of the laundry when it is tumbling by the lifting rib in the washing process or the rinsing process of the first modification.
  • Fig. 12 is a cross-sectional view showing the structure of a drum according to a second modification.
  • 13(a) and 13(b) are cross-sectional views showing the structure of a drum according to another modification.
  • drum washing machine which does not have a drying function as 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 type washing machine 1 is provided with a casing 10 that constitutes an appearance.
  • An input port 11 for washing is formed on the front surface of the casing 10.
  • the inlet 11 is covered by a door 12 that is freely opened and closed.
  • the outer tank 20 is elastically supported by the plurality of dampers 21.
  • a horizontal axis type drum 22 is rotatably disposed in the outer tub 20.
  • the drum 22 rotates around the horizontal axis H.
  • the opening 20a of the front surface of the outer tub 20 and the opening 22a of the front surface of the drum 22 face the input port 11, and are closed by the door 12 together with the input port 11.
  • On the circumferential wall of the drum 22, a plurality of dewatering holes 22b are formed on almost the entire surface.
  • three lifting ribs 23 are provided at substantially equal intervals in the circumferential direction. Only one lifting rib 23 is illustrated in FIG.
  • the lifting ribs 23 are not limited to three, as long as at least one or more are provided in the drum 22. The detailed structure of the lifting rib 23 will be described later.
  • a rotating body 24 is rotatably disposed at a rear portion of the drum 22.
  • the rotating body 24 has a substantially disk shape and rotates coaxially with the drum 22.
  • a plurality of projecting portions 24a are formed on the surface of the rotating body 24.
  • a retainer 25 formed in a ring shape and surrounding the rotating body 24 is provided at the rear portion of the drum 22. The retainer 25 prevents the laundry from getting caught in the gap created between the rotating body 24 and the drum 22.
  • An annular fluid balancer 26 is provided on the front surface of the drum 22.
  • the fluid balancer 26 suppresses the vibration of the drum 22 generated during dehydration.
  • a drive unit 30 that generates torque for driving the drum 22 and the rotating body 24 is disposed behind the outer tank 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 unit 30 rotates the drum 22 and the rotating body 24 so that the centrifugal force of the laundry applied to the drum 22 becomes much larger than the rotational speed of gravity.
  • 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 tub 20.
  • a drain valve 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 tub 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 a detergent is accommodated so that it can freely draw from a 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 tub 20 through a water injection pipe 53.
  • the water supply valve 51 is opened, tap water from the faucet is supplied into the outer tub 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 tub 20 along the water flow.
  • FIG. 2 and 3 are cross-sectional views showing the configuration of the drive unit 30.
  • FIG. 2 shows a state in which the driving form of the driving unit 30 is switched to the two-axis driving mode
  • FIG. 3 shows a state in which the driving form of the driving unit 30 is switched to the single-axis driving mode.
  • 4 is a front view showing the rotor 110 showing the structure of the rotor 110 of the drive motor 100.
  • FIG. 5 is an enlarged perspective view of the rear portion of the bearing unit 500 in which the rack 514 is formed.
  • 6(a) to 6(c) are views showing a configuration of a clutch body 610 of the clutch mechanism portion 600, which are respectively a front view, a right side view, and a rear view of the clutch body 610.
  • the drive unit 30 includes a drive motor 100, a wing shaft 200, a drum shaft 300, a planetary gear mechanism 400, a bearing unit 500, and a clutch mechanism unit 600.
  • the drive motor 100 generates torque for driving the rotating body 24 and the drum 22.
  • the wing shaft 200 is rotated by the torque of the drive motor 100 and transmits the rotation to the rotating body 24.
  • the planetary gear mechanism 400 decelerates and transmits the rotation of the wing shaft 200, that is, the rotation of the rotor 110 of the drive motor 100, to the drum shaft 300.
  • the drum shaft 300 rotates coaxially with the wing shaft 200 at a rotational speed decelerated by the planetary gear mechanism 400, and transmits the rotation to the drum 22.
  • the bearing unit 500 rotatably supports the wing shaft 200 and the drum shaft 300.
  • the clutch mechanism unit 600 switches the driving form of the driving unit 30 between the two-axis driving mode in which the rotating body 24, that is, the wing shaft 200, and the rotational speed of the driving motor 100 are switched between the two-axis driving mode.
  • the same rotation speed is rotated, and the drum 22, that is, the drum shaft 300, is rotated at a rotation speed decelerated by the planetary gear mechanism 400.
  • the uniaxial drive mode is such that the rotary body 24 and the drum 22, that is, the wing shaft 200 can be rotated.
  • the drum shaft 300 and the planetary gear mechanism 400 are integrally rotated at a rotation speed equal to that of the drive motor 100.
  • the drive motor 100 is an outer rotor type DC brushless motor including a rotor 110 and a stator 120.
  • the rotor 110 is formed in a bottomed cylindrical shape, and permanent magnets 111 are arranged on the inner circumferential surface thereof over the entire circumference.
  • a circular boss portion 112 is formed at a central portion of the rotor 110.
  • the sleeve hole 113 of the fixed wing shaft 200 and an annular engaged recess 114 are formed on the outer circumference of the sleeve hole 113.
  • the outer circumferential portion of the engaged recessed portion 114 has the uneven portion 114a over the entire circumference.
  • the stator 120 has a coil 121 at the outer circumferential portion.
  • a drive current is supplied to the coil 121 of the stator 120 from a motor drive unit (not shown), the rotor 110 rotates.
  • the drum shaft 300 has a hollow shape, and includes a wing shaft 200 and a planetary gear mechanism 400.
  • the drum shaft 300 protrudes outward from the center portion, and the protruding portion constitutes a housing portion of the planetary gear mechanism 400.
  • the planetary gear mechanism 400 includes: a sun gear 410; an annular internal gear 420 surrounding the sun gear 410; a plurality of sets of planetary gears 430 sandwiched between the sun gear 410 and the internal gear 420; and a planetary carrier 440 that is rotationally freely held These planet gears 430.
  • the sun gear 410 is fixed to the wing shaft 200, and the internal gear 420 is fixed to the drum shaft 300.
  • a set of planet gears 430 includes a first gear and a second gear that mesh with each other and rotate in opposite directions.
  • the planet carrier 440 includes a planet carrier shaft 441 that extends rearward.
  • the carrier shaft 441 is coaxial with the drum shaft 300, and is internally hollow to be inserted into the wing shaft 200.
  • the rear end portion of the wing shaft 200 protrudes rearward from the carrier shaft 441 and is fixed to the boss hole 113 of the rotor 110.
  • a cylindrical bearing portion 510 is provided at a central portion of the bearing unit 500. Inside the bearing portion 510, rolling bearings 511, 512 are provided at the front and rear portions, and a mechanical seal 513 is provided at the front end portion. The outer circumferential surface of the drum shaft 300 is received by the sliding bearings 511, 512, and smoothly rotates in the bearing portion 510. Further, water is prevented from intruding between the bearing portion 510 and the drum shaft 300 by the mechanical seal 513. As shown in FIG. 5, a rack 514 is formed on the inner surface of the rear end portion of the bearing portion 510 over the entire circumference.
  • a fixing flange portion 520 is formed around the bearing portion 510 of the bearing unit 500.
  • a mounting boss 521 is formed at a lower end portion of the fixing flange portion 520.
  • the bearing unit 500 is fixed to the rear surface of the outer tub 20 by a fixing flange portion 520 by a fastening method such as screw fastening.
  • a fastening method such as screw fastening.
  • the clutch mechanism portion 600 includes a clutch body 610, a clutch spring 620, a clutch lever 630, a lever support portion 640, a clutch driving device 650, a relay bar 660, and a mounting plate 670.
  • the clutch body 610 has a substantially disk shape.
  • An annular rack 611 is formed on the outer circumferential surface of the front end portion of the clutch body 610.
  • the rack 611 is formed to be engaged with the rack 514 of the bearing unit 500.
  • the rear square of the rack 611 is formed on the outer circumferential surface of the clutch body 610.
  • a flange portion 612 is formed on the outer circumferential surface of the clutch body 610.
  • an annular engagement flange portion 613 is formed at the rear end portion of the clutch body 610.
  • the engagement flange portion 613 has the same shape as the engaged concave portion 114 of the rotor 110, and has an uneven portion 613a extending over the entire circumference at the outer circumferential portion. When the engagement flange portion 613 is inserted into the engaged recessed portion 114, the uneven portions 613a and 114a are engaged with each other.
  • the planet carrier shaft 441 is inserted into the shaft hole 614 of the clutch body 610.
  • the rack 614a formed on the inner circumferential surface of the shaft hole 614 is engaged with the rack 441a formed on the outer circumferential surface of the carrier shaft 441.
  • the clutch body 610 is in a state in which the movement in the front-rear direction is permitted with respect to the carrier shaft 441, and the rotation in the circumferential direction is restricted.
  • An annular receiving groove 615 is formed outside the shaft hole 614 of the clutch body 610, and the receiving groove 615 houses a clutch spring 620.
  • One end of the clutch spring 620 abuts against the rear end portion of the bearing portion 510, and the other end abuts against the bottom surface of the housing groove 615.
  • a pressing portion 631 that presses against the rear surface of the flange portion 612 of the clutch body 610 and presses the flange portion 612 forward is formed at the upper end portion of the clutch lever 630.
  • the clutch lever 630 is rotatably supported by a support shaft 641 provided on the lever support portion 640.
  • a mounting shaft 632 is formed at a lower end portion of the clutch lever 630.
  • the clutch driving device 650 is disposed below the clutch lever 630.
  • the clutch driving device 650 includes a torque motor 651 and a disk-shaped cam 652 that rotates about a horizontal axis by the torque of the torque motor 651.
  • a cam shaft 653 is provided at an outer circumferential portion of the upper surface of the cam 652. The center of rotation of the cam 652 and the center of the mounting shaft 632 of the clutch lever 630 are aligned in the front-rear direction.
  • the relay bar 660 extends in the up-down direction and connects the clutch lever 630 and the cam 652.
  • the upper end portion of the relay bar 660 is attached to the mounting shaft 632 of the clutch lever 630, and the lower end portion is attached to the cam shaft 653 of the cam 652.
  • a spring 661 is integrally formed at an intermediate position of the relay bar 660.
  • the spring 661 is a telescopic spring.
  • the lever support portion 640 and the clutch drive device 650 are fixed to the mounting plate 670 by a fixing method such as screw fastening.
  • the mounting plate 670 is fixed to the mounting boss 521 of the bearing unit 500 by screws.
  • the cam 652 When the driving form of the driving unit 30 is switched from the single-axis driving mode to the two-axis driving mode, as shown in FIG. 2, the cam 652 is rotated by the torque motor 651 so that the cam shaft 653 is located at the lowest position. As the cam 652 rotates, the lower end portion of the clutch lever 630 is pulled downward by the relay bar 660. The clutch lever 630 rotates forward about the support shaft 641, and the pressing portion 631 pushes the clutch body 610 forward. The clutch body 610 moves forward against the elastic force of the clutch spring 620, and the rack 611 of the clutch body 610 and the rack 514 of the bearing unit 500 are engaged.
  • the carrier shaft 441 of the planetary gear mechanism 400 that is, the planetary carrier 440 It becomes a state in which it is fixed so that it cannot rotate.
  • the wing shaft 200 rotates at a rotational speed equal to the rotational speed of the rotor 110, and the rotating body 24 coupled to the wing shaft 200 is also equal to the rotational speed of the rotor 110.
  • the rotation speed is rotated.
  • the sun gear 410 also rotates with respect to the planetary gear mechanism 400.
  • the carrier 440 since the carrier 440 is in a fixed state, the first gear and the second gear of the planetary gear 430 are respectively rotated in the opposite direction and the same direction as the sun gear 410, and the internal gear 420 is rotated in the same direction as the sun gear 410.
  • the drum shaft 300 fixed to the inner gear 420 rotates in the same direction as the wing shaft 200 at a rotational speed slower than the wing shaft 200
  • the drum 22 fixed to the drum shaft 300 rotates at a slower speed than the rotating body 24 with the rotating body 24.
  • Rotate In other words, the rotating body 24 rotates in the same direction as the drum 22 at a rotational speed slower than the drum 22.
  • the cam 652 is rotated by the torque motor 651 so that the cam shaft 653 is located at the uppermost position. .
  • the spring 661 contracts.
  • the relay rod 660 moves upward as the cam shaft 653 moves, and the lower end portion of the clutch lever 630 is pressed by the relay rod 660 to move upward.
  • the clutch lever 630 rotates rearward about the support shaft 641, and the pressing portion 631 is separated from the flange portion 612 of the clutch body 610.
  • the clutch body 610 is moved rearward by the elastic force of the clutch spring 620, and the engagement flange portion 613 of the clutch body 610 is engaged with the engaged concave portion 114 of the rotor 110.
  • the internal gear 420 rotates at a rotation speed equal to that of the sun gear 410 and the carrier 440, and the drum shaft 300 fixed to the internal gear 420 rotates at a rotation speed equal to that of the rotor 110. That is, in the drive unit 30, the wing shaft 200, the planetary gear mechanism 400, and the drum shaft 300 integrally rotate. Thereby, the drum 22 and the rotating body 24 rotate integrally.
  • FIG. 7 is a view showing the structure of the lifting rib 23.
  • 7(a), (b), and (c) are a plan view, a front view, and a rear view, respectively, of the lifting rib 23.
  • Fig. 7(d) is a cross-sectional view taken along line A-A' of Fig. 7(a).
  • the bottom surface 23a of the lifting rib 23 is a substantially isosceles triangle, and has a substantially triangular pyramid shape in which the vertex P opposed to the bottom surface 23a is located near the bottom side of the midline of the isosceles triangle.
  • the lifting rib 23 is a hollow body whose bottom surface is open, and includes a substantially triangular right-up surface 23R that picks up the laundry when the drum 22 rotates rightward; and a substantially triangular left-faced surface that picks up the laundry when the drum 22 rotates to the left. 23L. As shown in Fig.
  • the side 23R1 abutting against the inner circumferential surface of the drum 22 of the right-up surface 23R is not inclined parallel to the horizontal axis H but inclined.
  • the right-up surface 23R itself is inclined such that the side of the rotating body 24 is delayed in the right rotation direction of the drum 22.
  • the side 23L1 abutting on the inner circumferential surface of the drum 22 of the left-up surface 23L is not inclined parallel to the horizontal axis H, and the left-up surface 23L itself is such that the side of the rotating body 24 is in the left rotation direction of the drum 22.
  • the way of lag is skewed.
  • the drum washing machine 1 performs a washing operation in various operation modes.
  • the washing operation the washing process, the intermediate dehydration process, the rinsing process, and the final dehydration process are performed in order. It should be noted that depending on the operation mode, the intermediate dehydration process and the rinsing process are sometimes performed twice or more.
  • the driving form of the driving unit 30 is switched to the two-axis driving mode.
  • the water in the outer tub 20 is stored in a predetermined water level that does not reach the lower edge of the input port 11 so that the laundry in the drum 22 is immersed in water.
  • the drive motor 100 alternately performs right rotation and left rotation.
  • the drum 22 and the rotating body 24 alternately perform the right rotation and the left rotation in a state in which the rotation speed of the rotating body 24 is faster than the rotation speed of the drum 22.
  • the drum 22 is rotated by a centrifugal force that acts on the laundry to be smaller than the gravity.
  • the laundry in the drum 22 is lifted up by the lifting ribs 23, that is, tumbling in the drum 22, and is dropped onto the inner circumferential surface of the drum 22.
  • the laundry comes into contact with the protruding portion 24a of the rotating rotating body 24, and is rubbed and stirred by the protruding portion 24a. Thereby, the laundry is washed or rinsed.
  • the drive form of the drive unit 30 is switched to the uniaxial drive mode.
  • the drive motor 100 that is, the drum 22 and the rotating body 24 are integrally rotated with the centrifugal force acting on the laundry in the drum 22 being much larger than the rotational speed of gravity.
  • the laundry is pressed to the inner circumferential surface of the drum 22 by the action of centrifugal force for dehydration.
  • Fig. 8 is a view schematically showing the movement of the laundry when it is tumbling by the lifting ribs 23 during the washing process or the rinsing process.
  • Fig. 8(a) schematically shows the movement of the laundry when the drum 22 is rotated right
  • Fig. 8(b) schematically shows the movement of the laundry when the drum 22 is rotated to the left.
  • the right-up surface 23R is inclined such that the side of the rotating body 24 lags in the right rotation direction of the drum 22, the side of the rotating body 24 becomes low during the washing of the laundry. Therefore, when it is picked up by the right-up surface 23R, the laundry moves toward the rotating body 24 side along the right-up surface 23R.
  • the left-up surface 23L is inclined such that the side of the rotating body 24 lags in the left rotation direction of the drum 22, the side of the rotating body 24 becomes low during the washing of the laundry. Therefore, when it is picked up by the left-up surface 23L, the laundry moves toward the rotating body 24 side along the left-up surface 23L.
  • the drum 22 has the lifting rib 23 constituting the moving unit, and the lifting rib 23 allows the laundry to move toward the rear portion of the drum 22 in which the rotating body 24 is disposed while being tumbling.
  • the lifting rib 23 allows the laundry to move toward the rear portion of the drum 22 in which the rotating body 24 is disposed while being tumbling.
  • the lifting rib 23 is formed as the right rising surface 23R so that the rotating body 24 side is inclined in the right rotation direction of the drum 22;
  • the left-folding surface 23L has a substantially triangular pyramid shape in which the side of the rotating body 24 is inclined in the left rotation direction of the drum 22, so that the moving unit that moves the laundry to the rotating body 24 side can be easily realized.
  • FIG. 9 is a cross-sectional view showing a configuration of a drum 22 according to Modification 1.
  • FIG. 10 is a view showing a configuration of the lifting rib unit 27 of Modification 1.
  • 10(a), (b), (c), and (d) are a plan view, a right side view, a front view, and a rear view, respectively, of the lift rib unit 27.
  • Fig. 10 (e) is a cross-sectional view taken along line B-B' of Fig. 10 (a).
  • the hoisting unit 27 is provided on the inner circumferential surface of the drum 22 instead of the lifting rib 23.
  • the lifting rib unit 27 is not limited to three, as long as at least one or more are provided in the drum 22.
  • the lifting rib unit 27 includes a lifting rib 271, a base 272, a right stopper 273, and a left stopper 274.
  • the lifting rib 271 is a hollow body having a substantially triangular shape when viewed from the front and a bottom surface having a substantially trapezoidal shape when viewed from the side.
  • the lifting rib 271 includes a substantially trapezoidal right-up surface 271R that picks up the laundry when the drum 22 rotates rightward, and a substantially trapezoidal left-up surface 271L that picks up the laundry when the drum 22 rotates to the left.
  • a bearing sleeve 275 is formed inside the front end portion of the lifting rib 271, and a concave portion 271a is formed on the outer side.
  • the shaft hole 275a formed in the bearing sleeve 275 is deep to the bottom surface of the recess 271a.
  • the base 272 has a substantially rectangular shape in plan view.
  • the size of the upper surface of the base 272 is slightly larger than the size of the bottom surface of the lifting rib 271.
  • the base 272 is formed with a rotating shaft 276, and the rotating shaft 276 is inserted into the shaft hole 275a of the bearing sleeve 275, whereby the front end portion of the lifting rib 271 is rotatably supported by the base 272.
  • a retaining member 277 that is detached from the side of the recessed portion 271a is attached to the upper end of the rotating shaft 276 by a screw 278.
  • the bearing sleeve 275 of the lift rib 271 does not fall off from the rotating shaft 276.
  • the base 272 to which the lifting rib 271 is attached is fixed to the inner circumferential surface of the drum 22 by a fixing method such as a screw so as to be parallel to the horizontal axis H.
  • the right stopper 273 is disposed on the inner circumferential surface of the drum 22 when the lifting rib 271 is inclined by a predetermined angle from the state parallel to the horizontal axis H toward the right rotation direction of the drum 22, and the rear portion of the lifting rib 271 is touched. position.
  • the left stopper 274 is disposed on the inner circumferential surface of the drum 22 when the lifting rib 271 is inclined by a predetermined angle from the state parallel to the horizontal axis H toward the left rotation direction of the drum 22, and the rear end portion of the lifting rib 271 is touched. position.
  • the specified angle can be an angle of several degrees to several tens of degrees.
  • the bottom surface of the lifting rib 271 is separated from the inner circumferential surface of the drum 22 by a distance of about the height of the base 272. Therefore, when the lifting rib 271 is inclined to both sides, the bottom surface of the lifting rib 271 does not touch the inner circumferential surface of the drum 22 until the left and right stoppers 273 and 274 are touched.
  • the height of the base 272 may be adjusted such that when the lifting rib 271 is inclined by a predetermined angle from a state parallel to the horizontal axis H, the bottom surface of the lifting rib 271 touches the inner circumferential surface of the drum 22, and does not tilt more. many. In this case, the left and right stoppers 273, 274 may not be provided.
  • Fig. 11 is a view schematically showing the movement of the laundry when the ribs 271 are tumbling during the washing process or the rinsing process.
  • Fig. 11(a) is a view schematically showing the movement of the laundry when the drum 22 is rotated right
  • Fig. 11(b) is a view schematically showing the movement of the laundry when the drum 22 is rotated to the left.
  • the right-up surface 271R picks up the laundry.
  • the lifting rib 271 is inclined in the left rotation direction of the drum 22 by the weight of the laundry, and the rotating body 24 side of the right-up surface 271R is lowered. Therefore, the laundry picked up by the right-up surface 271R moves toward the rotating body 24 side along the right-up surface 271R.
  • the left-up surface 271L picks up the laundry.
  • the lifting rib 271 is inclined in the right rotation direction of the drum 22 due to the weight of the laundry, and the rotating body 24 side of the left-up surface 271L is lowered.
  • the laundry picked up by the left-up surface 271L moves toward the rotating body 24 side along the left-up surface 271L.
  • the left and right rotation by the drum 22 is repeated as indicated by the dotted arrows in Figs. 11(a) and (b).
  • the laundry moves toward the rear side of the drum 22, that is, the position in contact with the rotating body 24.
  • the lifting ribs 271 constituting the moving unit can move the laundry to the rear portion of the drum 22 in which the rotating body 24 is disposed while being tumbling. Therefore, similarly to the above-described embodiment, it is possible to satisfactorily impart a cleaning effect by the rotating body 24 to the laundry without being affected by the amount of the laundry or the like.
  • the shape of the right-up surface 271R and the left-up surface 271L may not be set.
  • the triangular shape as in the above embodiment is a quadrangular shape such as a trapezoid.
  • FIG. 12 is a cross-sectional view showing a configuration of a drum 22A according to a second modification.
  • the drum 22A instead of the drum 22 is disposed in the outer tub 20.
  • the drum 22A is formed to have an inner diameter of the peripheral wall 22A1, that is, the diameter D1 of the inner circumferential surface 22A2 gradually increases toward the rear. Thereby, on the bottom side of the outer tub 20, the inner circumferential surface 22A2 of the drum 22A is inclined downward.
  • lifting ribs 28 are provided at substantially equal intervals in the circumferential direction.
  • Figure 12 only illustrates one lifting rib 28.
  • the lifting rib 28 has the same structure as the lifting rib 271 of the above-described first modification except that it is directly fixed to the drum 22 without being supported by the base 272.
  • the laundry When the drum 22A is rotated left and right, the laundry is tumbling through the lifting ribs 28. The tumbling laundry moves rearward along the lower inclination of the inner circumferential surface 22A2 when it falls on the inner circumferential surface 22A2 of the drum 22A. Thus, the laundry is likely to approach the rear portion of the drum 22A during the tumbling, and is in contact with the rotating body 24.
  • the moving unit since the moving unit has an inclination toward the rear of the drum 22A on the inner circumferential surface 22A2 of the drum 22A, the tumbling laundry can be brought closer to the rear portion of the drum 22A, and the laundry can be favorably provided.
  • the inner circumferential surface 22A2 of the drum 22A can easily realize a moving unit that has a larger inclination toward the rear and moves the laundry toward the rotating body 24 side.
  • the lifting rib 28 can be replaced with the lifting rib 23 and the lifting rib unit 27. In this way, the laundry is more easily moved to the side of the rotating body 24.
  • the embodiment of the present invention may be modified in various ways than the above.
  • the peripheral wall 22A1 of the drum 22A is provided with an inclination.
  • the drum 22B shown in Fig. 13 instead of the drum 22A.
  • Fig. 13 (a) is a cross-sectional view showing the structure of the drum 22B
  • Fig. 13 (b) is a perspective view of the inner member 222 as seen from the rear.
  • the drum 22B is formed by accommodating the inner member 222 inside the drum main body 220, wherein the peripheral wall 221 of the drum main body 220 is not provided with an inclination, and the inner member 222 has an inner circumferential surface 224a provided with an inclination.
  • a plurality of dehydration holes 223 are formed on almost the entire surface of the circumferential wall 221 of the drum main body 220. Further, the drum main body 220 is opened to the entire front surface so that the inner member 222 can be housed from the front.
  • the inner member 222 includes a body portion 224 and an annular flange portion 225 formed at the front end of the body portion 224.
  • the body portion 224 is formed such that the diameter D2 of the inner circumferential surface 224a gradually increases toward the rear.
  • a plurality of dehydration holes 226 are formed on almost the entire surface of the body portion 224.
  • the tumbling laundry can be moved toward the rear of the drum 22B by the downward inclination of the inner circumferential surface 224a of the body portion 224, so that the laundry can be similarly
  • the cleaning effect by the rotating body 24 is favorably imparted.
  • the right raised surface 23R and the left raised surface 23L of the lifting rib 23 are formed in a flat surface.
  • the right-up surface 23R and the left-up surface 23L are not limited to a plane, and may be, for example, a convex curved surface or a concave curved surface.
  • the right-up surface 271R and the left-up surface 271L of the lifting rib 271 of the first modification are not limited to the plane, and may be, for example, a convex curved surface or a concave curved surface.
  • 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)

Abstract

一种滚筒洗衣机，其能充分得到由旋转体带来的清洗效果。滚筒洗衣机(1)具备：外槽(20)，配置在壳体(10)内；滚筒(22)，配置在所述外槽(20)内，能以水平轴H为中心进行旋转；旋转体(24)，配置在滚筒(22)的后部，表面具有与洗涤物接触的突状部(24a)；以及驱动部(30)，使滚筒(22)和旋转体(24)以相互不同的旋转速度同轴旋转。滚筒具有提升筋(23)，设置在滚筒(22)的内圆周面，并作为使滚筒(22)内的洗涤物向旋转体(24)的方向移动的移动单元，其中，该提升筋(23)的通过滚筒(22)的旋转来拢起洗涤物的拢起面(23R、23L)以使旋转体(24)侧在滚筒(22)的旋转方向上滞后的方式倾斜。

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从洗涤到烘干连续地进行，也可以进行洗涤但不进行烘干。
背景技术
以往，滚筒洗衣机通过在底部存积了水的外槽内使横轴型的滚筒旋转，由设置在滚筒内的提升筋将洗涤物举起落下，将洗涤物摔到滚筒的内圆周面来洗涤洗涤物(参照专利文献1)。
这样，在通过提升筋搅拌洗涤物的结构中，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槽内使搅拌器(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，在滚筒洗衣机中，可以采用在滚筒的后表面设置表面具有突状部的旋转体，在进行洗涤、漂洗时，使滚筒和旋转体以不同的旋转速度旋转的结构。通过由旋转体摩擦、搅拌洗涤物，能实现清洗性能的提高。
现有技术文献
专利文献
专利文献1：日本特开2013-240577号公报
发明内容
发明所要解决的问题
在采用上述结构的情况下，当洗涤物不在旋转体的附近时，不能使洗涤物与旋转体接触，不能充分得到由旋转体带来的清洗效果。
因此，本发明目的在于，提供一种滚筒洗衣机，其能够充分得到由旋转体带来的清洗效果。
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：外槽，配置在壳体内；滚筒，配置在所述外槽内，能以水平轴为中心进行旋转；旋转体，配置在所述滚筒的后部，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以相互不同的旋转速度同轴旋转。在此，所述滚筒具有使所述滚筒内的洗涤物向所述旋转体的方向移动的移动单元。
通过上述的结构，由于能使洗涤物位于旋转体的附近，因此能使洗涤物容易与旋转体接触，能对洗涤物充分赋予由旋转体带来的清洗效果。
在本方式的滚筒洗衣机中，可以采用所述移动单元包括提升筋的结构，其中，该提升筋设置在所述滚筒的内圆周面，该提升筋的通过所述滚筒的旋转拢起洗涤物的拢起面以使旋转体侧在所述滚筒的旋转方向上滞后的方式倾斜。
通过上述的结构，由于拢起面以使旋转体侧在所述滚筒的旋转方向上滞后的方式倾斜，所以在拢起洗涤物期间，旋转体侧会变低。因此，在被拢起面拢起时，洗涤物会以沿着拢起面的方式向旋转体侧移动。
这样，通过上述的结构，能够通过提升筋使洗涤物一边翻滚一边靠近旋转体的附近，因此能使洗涤物容易与旋转体接触，能对洗涤物充分赋予由旋转体带来的清洗效果。
在采用上述的结构的情况下，进一步地，所述提升筋可以设为具备分别对应所述滚筒的右旋转以及左旋转的两个所述拢起面的结构。
如果采用这样的结构的话，无论滚筒往左右哪个方向旋转时，都能使洗涤物靠近旋转体的附近。
在本方式的滚筒洗衣机中，可以采用所述移动单元包括提升筋的结构，其中，提升筋设置在所述滚筒的内圆周面，能够以设置在与所述旋转体侧相反的端部的旋转轴为中心进行旋转，从与所述水平轴平行的状态往两侧倾斜。
通过上述的结构，当滚筒分别右旋转时、左旋转时，在拢起洗涤物时，提升筋由于洗涤物的重量而以旋转体侧变低的方式倾斜。由此，洗涤物沿着提升筋的倾斜向旋转体侧移动。
这样，通过上述的结构，能通过提升筋使洗涤物一边翻滚一边靠近旋转体的附近，因此能使洗涤物容易与旋转体接触，能对洗涤物充分赋予由旋转体带来的清洗效果。进而，无论滚筒往左右哪个方向旋转时，都能使洗涤物靠近旋转体的附近。
在本方式的滚筒洗衣机中，所述移动单元可以设为包括以越往后方直径越大的方式带有倾斜度的所述滚筒的内圆周面的结构。
通过上述的结构，当伴随着滚筒的旋转而翻滚的洗涤物落到滚筒的内圆周面时，沿着内圆周面的下倾斜向后方的旋转体侧移动。
这样，通过上述的结构，由于能够使洗涤物通过滚筒的内圆周面的倾斜度靠近旋转体的附近，因此能够使洗涤物容易与旋转体接触，能够对洗涤物充分赋予由旋转体带来的清洗效果。
发明效果
通过本发明，能提供一种滚筒洗衣机，其能充分得到由旋转体带来的清洗效果。
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是表示实施方式的滚筒洗衣机的结构的侧面剖视图。
图2是表示实施方式的驱动部的结构的剖视图。
图3是表示实施方式的驱动部的结构的剖视图。
图4是表示实施方式的驱动电机的转子的结构的转子主视图。
图5是表示实施方式的形成有齿条的轴承单元的后部的放大立体图。
图6(a)～(c)是表示实施方式的离合器机构部的离合器体的结构的图。
图7(a)～(d)是表示实施方式的提升筋的结构的图。
图8(a)和(b)是示意性地表示实施方式的在洗涤过程或漂洗过程中，通过提升筋翻滚时的洗涤物的动向的图。
图9是表示变更例1的滚筒的结构的剖视图。
图10(a)～(e)是表示变更例1的提升筋单元的结构的图。
图11(a)和(b)是示意性地表示在变更例1的洗涤过程或漂洗过程中，通过提升筋而翻滚时的洗涤物的动向的图。
图12是表示变更例2的滚筒的结构的剖视图。
图13(a)和(b)是表示其它变更例的滚筒的结构的剖视图。
具体实施方式
以下，参照附图，对作为本发明的滚筒洗衣机的一个实施方式的不具有烘干功能的滚筒洗衣机进行说明。
图1是表示滚筒洗衣机1的结构的侧面剖视图。
滚筒式洗衣机1具备构成外观的壳体10。在壳体10的前表面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。
在壳体10内，由多个减振器21弹性地支承有外槽20。在外槽20内，自由旋转地配置有横轴型滚筒22。滚筒22以水平轴H为中心进行旋转。外槽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的圆周壁，几乎整个面都形成有许多个脱水孔22b。进而，在滚筒22的内周面上，在圆周方向上以大致相等的间隔设有三个提升筋23。图1中仅图示出了一个提升筋23。提升筋23不限于三个，只要在滚筒22内设置至少一个以上即可。提升筋23的详细结构稍后说明。
在滚筒22的后部以旋转自由的方式配置有旋转体24。旋转体24具有大致圆盘形状，与滚筒22同轴旋转。在旋转体24的表面形成有多个突状部24a。进而，在滚筒22的后部设有形成为环状并包围旋转体24的护圈25。护圈25阻止洗涤物卡入旋转体24和滚筒22之间所产生的间隙。
在滚筒22的前表面设置有环状的流体平衡器26。流体平衡器26抑制脱水时所产生的滚筒22的振动。
在外槽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在进行洗涤过程和漂洗过程时，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和旋转体24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一体旋转。驱动部30的详细结构随后进行说明。
在外槽20的底部形成有排水口部20b。在排水口部20b设有排水阀。排水阀40与排水软管41连接。当排水阀40打开时，存积于外槽20内的水就会通过排水软管41向机外排出。
在壳体10内的前方上部配置有洗涤剂盒50。在洗涤剂盒50中，以从前方自由抽出的方式收容有容纳洗涤剂的洗涤剂容器50a。洗涤剂盒50通过给水软管52与配置在壳体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与外槽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供给到外槽20内。此时，收容在洗涤剂容器50a中的洗涤剂顺着水流供给到外槽20内。
接下来，关于驱动单元30的结构进行详细说明。
图2以及图3是表示驱动部30的结构的剖视图。图2表示驱动部30的驱动形态被切换到双轴驱动形态的状态，图3表示驱动部30的驱动形态被切换到单轴驱动形态的状态。图4是表示驱动电机100的转子110的结构的、转子110的主视图。图5是形成有齿条514的轴承单元500的后部的放大立体图。图6(a)至(c)是表示离合器机构部600的离合器体610的结构的图，分别为离合器体610的主视图、右视图以及后视图。
驱动部30包括：驱动电机100、翼轴200、滚筒轴300、行星齿轮机构400、轴承单元500以及离合器机构部600。驱动电机100产生用于驱动旋转体24以及滚筒22的转矩。翼轴200通过驱动电机100的转矩进行旋转，并将该旋转传递给旋转体24。行星齿轮机构400将翼轴200的旋转即驱动电机100的转子110的旋转减速并传递给滚筒轴300。滚筒轴300以通过行星齿轮机构400减速后的旋转速度与翼轴200同轴地旋转，并将该旋转传递给滚筒22。轴承单元500旋转自由地支承翼轴200以及滚筒轴300。离合器机构部600在双轴驱动形态和单轴驱动形态之间切换驱动部30的驱动形态，其中，所述双轴驱动形态是能够使旋转体24即翼轴200以与驱动电机100的旋转速度相同的旋转速度进行旋转，并使滚筒22即滚筒轴300以通过行星齿轮机构400减速后的旋转速度进行旋转的形态；所述单轴驱动形态是能够使旋转体24以及滚筒22即翼轴200、滚筒轴300以及行星齿轮机构400以与驱动电机100相等的旋转速度一体地旋转的形态。
驱动电机100是外转子型DC无刷电机，包括转子110和定子120。转子110形成为有底的圆筒状，在其内圆周面遍及整个圆周地排列有永磁铁111。如图4所示，在转子110的中央部形成有圆形的轴套部112。在轴套部112形成有用于 固定翼轴200的轴套孔113并且在轴套孔113的外圆周形成有环状的被卡合凹部114。被卡合凹部114的外圆周部遍及整个圆周地具有凹凸部114a。
定子120在外圆周部具有线圈121。当从未图示的电机驱动部提供驱动电流给定子120的线圈121时，转子110旋转。
滚筒轴300具有中空形状，内包翼轴200和行星齿轮机构400。滚筒轴300从中央部向外侧突出，该突出的部位构成行星齿轮机构400的收容部。
行星齿轮机构400包括：太阳齿轮410；包围太阳齿轮410的环状的内齿轮420；多组行星齿轮430，夹在太阳齿轮410和内齿轮420之间；以及行星齿轮架440，旋转自由地保持这些行星齿轮430。
太阳齿轮410固定在翼轴200，内齿轮420固定在滚筒轴300。一组行星齿轮430包括相互啮合并往相反的方向旋转的第一齿轮和第二齿轮。行星齿轮架440包括向后方延伸的行星架轴441。行星架轴441与滚筒轴300同轴，并且内部形成为中空以供翼轴200插入。
翼轴200的后端部从行星架轴441向后方突出，固定在转子110的轴套孔113。
在轴承单元500的中央部设有圆筒状的轴承部510。在轴承部510的内部，在前部以及后部设有滚动轴承511、512，在前端部设有机械密封件513。滚筒轴300的外圆周面由滑动轴承511、512承接，在轴承部510内顺滑地旋转。此外，通过机械密封件513防止水侵入轴承部510和滚筒轴300之间。如图5所示，在轴承部510的后端部的里面遍及整个圆周地形成有齿条514。
在轴承单元500的轴承部510的周围形成有固定凸缘部520。在固定凸缘部520的下端部形成有安装凸起521。
轴承单元500通过固定凸缘部520，以螺钉紧固等固定方法固定在外槽20的后表面。在驱动部30已安装于外槽20的状态下，翼轴200以及滚筒轴300进入外槽20的内部。滚筒22固定在滚筒轴300，旋转体24固定在翼轴200。
离合器机构部600包括：离合器体610、离合器弹簧620、离合器杆630、杆支承部640、离合器驱动装置650、中继棒660以及安装板670。
如图6(a)至(c)所示，离合器体610具有大致圆盘形状。在离合器体610的前端部的外圆周面形成有环状的齿条611。齿条611以与轴承单元500的齿条514卡合的方式形成。此外，在离合器体610的外圆周面，在齿条611的后方形 成有凸缘部612。进而，在离合器体610的后端部形成有环状的卡合凸缘部613。卡合凸缘部613具有与转子110的被卡合凹部114相同的形状，在外圆周部具有遍及整个圆周的凹凸部613a。当卡合凸缘部613插入被卡合凹部114时，凹凸部613a、114a彼此卡合。
行星架轴441插入离合器体610的轴孔614。在轴孔614的内圆周面形成的齿条614a与在行星架轴441的外圆周面形成的齿条441a卡合。由此，离合器体610成为相对于行星架轴441，向前后方向的移动被允许，并且向圆圆周方向的转动被限制的状态。
在离合器体610的轴孔614的外侧形成有环状的收容槽615，该收容槽615收容有离合器弹簧620。离合器弹簧620的一端与轴承部510的后端部抵接，另一端与收容槽615的底面抵接。
在离合器杆630的上端部形成有与离合器体610的凸缘部612的后表面接触，向前方推压凸缘部612的推压部631。离合器杆630由设置在杆支承部640的支轴641旋转自如地支承。在离合器杆630的下端部形成有安装轴632。
离合器驱动装置650配置在离合器杆630的下方。离合器驱动装置650包括力矩电机651和通过力矩电机651的力矩绕水平轴旋转的圆盘状的凸轮652。在凸轮652的上表面的外圆周部设有凸轮轴653。凸轮652的旋转中心和离合器杆630的安装轴632的中心在前后方向上一致。
中继棒660向上下方向延伸，连结离合器杆630和凸轮652。中继棒660的上端部安装在离合器杆630的安装轴632，下端部安装在凸轮652的凸轮轴653。在中继棒660的中间位置处一体形成有弹簧661。弹簧661为伸缩弹簧。
杆支承部640以及离合器驱动装置650通过螺钉紧固等固定方法固定在安装板670。安装板670通过螺钉固定在轴承单元500的安装凸起521。
在驱动部30的驱动形态从单轴驱动形态切换向双轴驱动形态的情况下，如图2所示，凸轮652通过力矩电机651，以凸轮轴653位于最下方的方式旋转。伴随着凸轮652旋转，离合器杆630的下端部被中继棒660拉向下方。离合器杆630以支轴641为中心向前方旋转，推压部631向前方推压离合器体610。离合器体610抵抗离合器弹簧620的弹力，向前方移动，离合器体610的齿条611和轴承单元500的齿条514卡合。
当凸轮轴653移动到中间的规定位置时，离合器体610的齿条611到达与齿条514卡合的位置。此时，中继棒660的弹簧661处于自然长度的状态。由于离合器体610不会移动至比该卡合位置更靠前的位置，因此当凸轮轴653从规定位置移动至最下方的位置时，像图2那样，弹簧661伸长至下方。这样，由于离合器杆630被弹簧661拉动而向前方转动，因此位于卡合位置的离合器体610被推压部631施加推压力。由此，能够将齿条611与齿条514紧紧地卡合。
当齿条611和齿条514卡合时，由于离合器体610相对于轴承单元500向圆周方向的转动受限，成为不能转动的状态，因此行星齿轮机构400的行星架轴441即行星齿轮架440成为被固定成不能旋转的状态。在这样的状态下，当转子110旋转时，翼轴200以与转子110的旋转速度相等的旋转速度进行旋转，并且与翼轴200连结着的旋转体24也以与转子110的旋转速度相等的旋转速度进行旋转。伴随着翼轴200的旋转，对于行星齿轮机构400而言，太阳齿轮410也进行旋转。如上所述，由于行星齿轮架440处于被固定的状态，因此行星齿轮430的第一齿轮以及第二齿轮分别与太阳齿轮410逆向以及同向旋转，内齿轮420与太阳齿轮410同向旋转。由此，固定在内齿轮420的滚筒轴300以比翼轴200慢的旋转速度与翼轴200同向旋转，固定在滚筒轴300的滚筒22以比旋转体24慢的旋转速度与旋转体24同向旋转。换言之，旋转体24以比滚筒22慢的旋转速度与滚筒22同向旋转。
另一方面，在驱动部30的形态从双轴驱动形态切换向单轴驱动形态的情况下，如图3所示，凸轮652通过力矩电机651，以使凸轮轴653位于最上方的方式进行旋转。当凸轮652旋转，凸轮轴653向上方移动时，首先，弹簧661收缩。当弹簧661恢复到自然长度时，之后，随着凸轮轴653移动，中继棒660向上方移动，离合器杆630的下端部被中继棒660推压，向上方移动。离合器杆630以支轴641为中心向后方旋转，推压部631离开离合器体610的凸缘部612。离合器体610通过离合器弹簧620的弹力向后方移动，离合器体610的卡合凸缘部613和转子110的被卡合凹部114卡合。
当卡合凸缘部613和被卡合凹部114卡合时，离合器体610相对于转子110向圆周方向的转动受限，离合器体610成为能够与转子110一起旋转的状态。在这样的状态下，当转子110旋转时，翼轴200以及离合器体610以与转子110 的旋转速度相等的旋转速度进行旋转。此时，对于星齿轮机构400而言，太阳齿轮410和行星齿轮架440以与转子110相等的旋转速度进行旋转。由此，内齿轮420以与太阳齿轮410以及行星齿轮架440相等的旋转速度进行旋转，固定在内齿轮420的滚筒轴300以与转子110相等的旋转速度进行旋转。即，在驱动部30中，翼轴200、行星齿轮机构400以及滚筒轴300一体地旋转。由此，滚筒22和旋转体24一体地旋转。
接下来，对提升筋23的结构进行详细说明。
图7是表示提升筋23的结构的图。图7(a)、(b)以及(c)分别是提升筋23的俯视图、主视图以及后视图。图7(d)是图7(a)的A-A′剖视图。
参照图1以及图7，提升筋23的底面23a为大致等腰三角形，并且具有与底面23a相对的顶点P位于等腰三角形的中线上的底边附近的大致三角锥形。提升筋23为底面打开的中空体，并且包括在滚筒22右旋转时拢起洗涤物的大致三角形的右拢起面23R；在滚筒22左旋转时拢起洗涤物的大致三角形的左拢起面23L。如图1所示，在提升筋23已安装在滚筒22的内圆周面的状态下，与右拢起面23R的滚筒22的内圆周面抵接的边23R1不平行于水平轴H而是倾斜，右拢起面23R自身以使旋转体24侧在滚筒22的右旋转方向上滞后的方式倾斜。此外，与左拢起面23L的滚筒22的内圆周面抵接的边23L1不平行于水平轴H而是倾斜，左拢起面23L自身以使旋转体24侧在滚筒22的左旋转方向上滞后的方式倾斜。
滚筒洗衣机1进行各种运转模式的洗涤运转。在洗涤运转中，按照顺序执行洗涤过程、中间脱水过程、漂洗过程以及最终脱水过程。需要说明的是，根据运转模式，有时候会进行两次以上中间脱水过程和漂洗过程。
在洗涤过程以及漂洗过程中，驱动部30的驱动形态切换为双轴驱动形态。以使滚筒22内的洗涤物浸泡在水中的方式，在外槽20内蓄水至未到达投入口11的下缘的规定的水位，在该状态下，驱动电机100交替进行右旋转以及左旋转。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以及左旋转。此时，滚筒22以作用于洗涤物的离心力变得比重力小的旋转速度进行旋转。滚筒22内的洗涤物被提升筋23举起落下，即在滚筒22内翻滚，被摔到滚筒22的内圆周面。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，通过突状部24a被摩擦、搅拌。由此，洗涤物被洗涤或漂洗。
这样，在进行洗涤以及漂洗时，由于洗涤物不仅被施加由滚筒22的旋转所产生的机械力还被施加由旋转体24产生的机械力，因此可期待提高清洗性能。在中间脱水过程以及最终脱水过程中，驱动部30的驱动形态切换为单轴驱动形态。驱动电机100即滚筒22以及旋转体24以作用于滚筒22内的洗涤物的离心力远大于重力的旋转速度一体地旋转。洗涤物通过离心力的作用被按压到滚筒22的内圆周面进行脱水。
这样，由于在脱水时，滚筒22和旋转体2一体地旋转，因此贴附在滚筒22的洗涤物无需被旋转体24搅拌，就能够良好地给洗涤物脱水。
图8是示意性地表示在洗涤过程或漂洗过程中通过提升筋23进行翻滚时的洗涤物的动向的图。图8(a)示意性地表示滚筒22右旋转时的洗涤物的动向，图8(b)示意性地表示滚筒22左旋转时的洗涤物的动向。
如上所述，由于右拢起面23R以使旋转体24侧在滚筒22的右旋转方向上滞后的方式倾斜，因此在拢起洗涤物期间，旋转体24侧变低。因此，当被右拢起面23R拢起时，洗涤物以沿着右拢起面23R的方式向旋转体24侧移动。同样，由于左拢起面23L以使旋转体24侧在滚筒22的左旋转方向上滞后的方式倾斜，因此在拢起洗涤物期间，旋转体24侧变低。因此，当被左拢起面23L拢起时，洗涤物以沿着左拢起面23L的方式向旋转体24侧移动。这样，即使在洗涤物配置在滚筒22的前侧，即远离旋转体24的位置的情况下，如图8(a)以及(b)的虚线箭头所示，在反复进行通过滚筒22的左右旋转而进行的翻滚期间，洗涤物向滚筒22的后侧，即旋转体24的附近移动。
这样，在本实施方式中，滚筒22具有构成移动单元的提升筋23，通过该提升筋23，能使洗涤物一边翻滚一边往配置有旋转体24的滚筒22的后部移动。由此，例如，即使在将少量的洗涤物投入滚筒22的前侧附近的情况下，也能使洗涤物向旋转体24侧靠近并与旋转体24接触。因此，能够不受洗涤物的量等的影响地对洗涤物良好地赋予由旋转体24带来的清洗效果。
进而，在本实施方式中，通过对提升筋23的形状下功夫，使提升筋23形成为右拢起面23R以使旋转体24侧在滚筒22的右旋转方向上滞后的方式倾斜； 左拢起面23L以使旋转体24侧在滚筒22的左旋转方向上滞后的方式倾斜的大致三角锥形状，就能够容易地实现使洗涤物向旋转体24侧移动的移动单元。
以上，虽然就本发明的实施方式进行了说明，但本发明不局限于上述的实施方式等，此外，本发明的实施方式也可以在上述之外进行各种变形。
<变更例1>
图9是表示变更例1的滚筒22的结构的剖视图。图10是表示变更例1的提升筋单元27的结构的图。图10(a)、(b)、(c)以及(d)分别是提升筋单元27的俯视图、右视图、主视图以及后视图。图10(e)是表示图10(a)的B-B′剖视图。
本变更例中，在滚筒22的内圆周面替代提升筋23设有提升筋单元27。虽然图9中只图示出了一个提升筋单元27，但与上述实施方式相同，在滚筒22中设有三个提升筋单元27。需要说明的是，提升筋单元27不限于三个，只要是在滚筒22内设置至少一个以上即可。
参照图9以及图10，提升筋单元27包括：提升筋271、基体272、右限位器273以及左限位器274。
提升筋271是在正视时具有大致三角形状、在侧视时具有大致梯形的底面打开的中空体。提升筋271包括：大致梯形的右拢起面271R，在滚筒22右旋转时拢起洗涤物；大致梯形的左拢起面271L，在滚筒22左旋转时拢起洗涤物。进而，在提升筋271的前端部的内部形成有轴承套275，在外部侧形成有凹部271a。形成于轴承套275的轴孔275a深至凹部271a的底面。
基体272在俯视时具有大致长方形。基体272的上表面的尺寸比提升筋271的底面的尺寸稍微大一些。基体272形成有旋转轴276，通过使该旋转轴276插入轴承套275的轴孔275a，从而使提升筋271的前端部旋转自如地支承在基体272。在旋转轴276的上端通过螺钉278安装有从凹部271a侧脱落的防脱构件277。由于防脱构件277的头部277a的直径比轴孔275a的直径大，因此提升筋271的轴承套275不会从旋转轴276脱落。如图9所示，安装有提升筋271的基体272以与水平轴H平行的方式，通过螺钉等固定方法固定在滚筒22的内圆周面。
右限位器273在滚筒22的内圆周面，设置在当提升筋271从与水平轴H平行的状态向滚筒22的右旋转方向倾斜规定角度时，提升筋271的后部所触碰的 位置。左限位器274在滚筒22的内圆周面，设置在当提升筋271从与水平轴H平行的状态向滚筒22的左旋转方向倾斜规定角度时，提升筋271的后端部所触碰的位置。规定角度可以采用几度到数十度左右的角度。
提升筋271的底面离开滚筒22的内圆周面约基体272的高度左右的距离。因此，在提升筋271向两侧倾斜时，提升筋271的底面直到触碰左右限位器273、274为止，都不会触碰滚筒22的内圆周面。需要说明的是，也可以调整基体272的高度，使得在提升筋271从与水平轴H平行的状态倾斜规定角度时，提升筋271的底面触碰滚筒22的内圆周面，不会倾斜得更多。在这种情况下，可以不设左右限位器273、274。
图11是示意性地表示在洗涤过程或漂洗过程中，通过提升筋271翻滚时的洗涤物的动向的图。图11(a)是示意性地表示滚筒22右旋转时的洗涤物的动向，图11(b)是示意性地表示滚筒22左旋转时的洗涤物的动向。
当滚筒右旋转22时，右拢起面271R拢起洗涤物。其间，提升筋271因洗涤物的重量而向滚筒22的左旋转方向倾斜，右拢起面271R的旋转体24侧变低。因此，被右拢起面271R拢起的洗涤物以沿着右拢起面271R的方式向旋转体24侧移动。另一方面，当滚筒22左旋转时，左拢起面271L拢起洗涤物。其间，提升筋271因洗涤物的重量而向滚筒22的右旋转方向倾斜，左拢起面271L的旋转体24侧变低。因此，被左拢起面271L拢起的洗涤物以沿着左拢起面271L的方式向旋转体24侧移动。这样，即使在洗涤物配置在滚筒22的前侧，即远离旋转体24的位置的情况下，如图11(a)以及(b)的虚线箭头所示，在反复进行通过滚筒22的左右旋转而进行的翻滚期间，洗涤物向滚筒22的后侧，即与旋转体24接触的位置移动。
这样，本变更例中，通过构成移动单元的提升筋271，能使洗涤物一边翻滚一边向配置有旋转体24的滚筒22的后部移动。因此，与上述实施方式相同，能够不受洗涤物的量等的影响地对洗涤物良好地赋予由旋转体24带来的清洗效果。
进而，本变更例中，由于右拢起面271R以及左拢起面271L为根据滚筒22的旋转方向自动倾斜的结构，因此可以不将右拢起面271R以及左拢起面271L的形状设为像上述实施方式那样的三角形状，而是设为梯形等四角形状。由此， 能使右拢起面271R以及左拢起面271L的面积变大，因此能通过提升筋271使洗涤物良好地翻滚。
<变更例2>
图12是表示变更例2的滚筒22A的结构的剖视图。
本变更例中，在外槽20内配置有替代滚筒22的滚筒22A。滚筒22A形成为周壁22A1的内径，即内圆周面22A2的直径D1越往后方越是徐徐变大。由此，在外槽20的底部侧，滚筒22A的内圆周面22A2向下倾斜。
在滚筒22A的内圆周面22A2，在圆周方向上以大致相等间隔设有三个提升筋28。图12只图示出一个提升筋28。提升筋28除了不被基体272支承而是直接固定在滚筒22这一点外，具有与上述变更例1的提升筋271相同的结构。
当滚筒22A左右旋转时，洗涤物通过提升筋28翻滚。翻滚的洗涤物在落到滚筒22A的内圆周面22A2时沿着内圆周面22A2的下倾斜向后方移动。这样，洗涤物容易在翻滚期间向滚筒22A的后部靠近，与旋转体24接触。
本变更例中，由于移动单元在滚筒22A的内圆周面22A2具有越往后方直径越大的倾斜度，因此能使翻滚的洗涤物向滚筒22A的后部靠近，能对洗涤物良好地赋予由旋转体24带来的清洗效果。
进而，本变更例中，能容易地实现在滚筒22A的内圆周面22A2具有越往后方直径越大的倾斜度，使洗涤物向旋转体24侧移动的移动单元。
需要说明的是，在本变更例中，可以将提升筋28置换为提升筋23、提升筋单元27。像这样，洗涤物更容易向旋转体24侧移动。
<其它变更例>
本发明的实施方式也可以进行上述之外的各种变更。
例如，上述变更例2中，滚筒22A的周壁22A1设置了倾斜度。然而，也可以使用图13所示的滚筒22B替代滚筒22A。
图13(a)是表示滚筒22B的结构的剖视图，图13(b)是从后方观察内侧构件222的立体图。
滚筒22B通过在滚筒主体220的内部收容内侧构件222而形成，其中，滚筒主体220的周壁221不设置倾斜度，内侧构件222具有设置了倾斜度的内圆周面224a。
在滚筒主体220的圆周壁221的几乎整个面上形成有许多个脱水孔223。此外，滚筒主体220以能够从前方收容内侧构件222的方式，整个前表面开口。
内侧构件222包括：躯体部224；圆环状的凸缘部225，形成在躯体部224的前端。躯体部224形成为内圆周面224a的直径D2越往后方越是徐徐变大。在躯体部224的几乎整个面上形成有许多个脱水孔226。当凸缘部225的外径与躯体部224的后端的外径相同，内侧构件222收容在滚筒主体220时，凸缘部225的外圆周面和躯体部224的后端的外圆周面与滚筒主体220的内圆周面抵接。
这样，在使用滚筒22B的情况下，与变更例2相同，由于能使翻滚的洗涤物通过躯体部224的内圆周面224a的下倾斜而向滚筒22B的后部靠近，因此同样能对洗涤物良好地赋予由旋转体24带来的清洗效果。
进而，上述实施方式中，提升筋23的右拢起面23R以及左拢起面23L形成为平面。然而，右拢起面23R以及左拢起面23L不局限于平面，也可以是例如凸曲面、凹曲面。同样，变更例1的提升筋271的右拢起面271R以及左拢起面271L也不局限于平面，也可以是例如凸曲面、凹曲面。
进而，虽然上述实施方式的滚筒洗衣机1不具备烘干功能，但本发明也能用于具备烘干功能的滚筒洗衣机，即滚筒式洗衣干衣机。
此外，本发明的实施方式在权利要求书示出的技术思想的范围内可以适当地进行各种变更。
附图标记说明
10：壳体；20：外槽；22：滚筒；23：提升筋；23R：右拢起面；23L：左拢起面；24：旋转体；24a：突状部；27：提升筋单元；271：提升筋；272：基体；276：旋转轴；22A：滚筒；22A2：内圆周面；22B：滚筒；220：滚筒主体；222：内侧构件；224：躯体部；224a：内圆周面。

Claims (5)

  1. 一种滚筒洗衣机，其特征在于，具备：
    外槽，配置在壳体内；
    滚筒，配置在所述外槽内，能以水平轴为中心进行旋转；
    旋转体，配置在所述滚筒的后部，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以相互不同的旋转速度同轴旋转，
    所述滚筒具有使所述滚筒内的洗涤物向所述旋转体的方向移动的移动单元。
  2. 根据权利要求1所述的滚筒洗衣机，其特征在于，包括：
    所述移动单元包括提升筋，其设置在所述滚筒的内圆周面，所述提升筋的通过所述滚筒的旋转来拢起洗涤物的拢起面以使旋转体侧在所述滚筒的旋转方向上滞后的方式倾斜。
  3. 根据权利要求1所述的滚筒洗衣机，其特征在于，
    所述提升筋具备分别与所述滚筒的右旋转以及左旋转对应的两个所述拢起面。
  4. 根据权利要求1所述的滚筒洗衣机，其特征在于，
    所述移动单元包括提升筋，其设置在所述滚筒的内圆周面，并以设置在与所述旋转体侧相反的端部的旋转轴为中心进行旋转，能从与所述水平轴平行的状态向两侧倾斜。
  5. 根据权利要求1～4的任一项所述的滚筒洗衣机，其特征在于，
    所述移动单元包括以越往后方直径越大的方式带有倾斜度的所述滚筒的内圆周面。
PCT/CN2015/088808 2014-09-02 2015-09-02 滚筒洗衣机 WO2016034115A1 (zh)

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