Title:
WASHING MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/138992
Kind Code:
A1
Abstract:
A washing machine according to the present invention comprises: a water-storage tub in which water is stored; a washing tub rotated by a dewatering shaft inside the water-storage tub; a motor for rotating a driving shaft; a pulsator disposed in the washing tub and rotated by rotational power delivered from the driving shaft; a coupler spline-coupled to the dewatering shaft such that, in a connect position, same axially joins (connects) the driving shaft and the dewatering shaft and, in a disconnect position lifted from the connect position, same is separated from the driving shaft; a solenoid for forming a magnetic field when an electric current is applied thereto; a clutch having a following protrusion elongated in the upward/downward direction, the clutch being disposed to be able to move upwards/downwards along the axial direction while supporting the coupler such that the clutch is lifted by the magnetic field; a clutch supporter having multiple support surfaces formed to be spaced apart by a predetermined interval along the circumferential direction such that, when the coupler is in the connect position, same support the lower end of the following protrusion, thereby preventing further downward movement of the clutch, and such that, when the coupler is in the connect position, the following protrusion is positioned within the interval; and multiple guide surfaces formed above the support surfaces along the circumferential direction so as to interfere with the upper end of the following protrusion in the process of the clutch being lifted from the connect position to the disconnect position, thereby swiveling the following protrusion to a position in which same corresponds to the support surfaces.
Inventors:
LEE JEONGUK (KR)
PYO JOONHO (KR)
LEE TAEHEE (KR)
PYO JOONHO (KR)
LEE TAEHEE (KR)
Application Number:
PCT/KR2019/018550
Publication Date:
July 02, 2020
Filing Date:
December 27, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
D06F37/40; D06F37/04; D06F37/30; F16D1/076; F16D1/108
Foreign References:
| KR101892012B1 | 2018-08-27 | |||
| KR200194920Y1 | 2000-09-01 | |||
| US6332343B1 | 2001-12-25 | |||
| JP2002113285A | 2002-04-16 | |||
| JP2003019386A | 2003-01-21 |
Attorney, Agent or Firm:
PARK, Byung Chang (KR)
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