Title:
HINGE DEVICE FOR WASHING MACHINE DOOR
Document Type and Number:
WIPO Patent Application WO/2018/080134
Kind Code:
A1
Abstract:
The present invention relates to a hinge device for a washing machine door. The hinge device is characterized by including: a housing (10) that is fixed to one among a washing machine main body and a washing machine door, and in which a plurality of guide projections (11) are provided at an inlet side and an injection hole (12), through which oil is injected, is formed at a rear side; a spring (20) inserted into the housing (10); an oil damper (30) that is elastically supported by the spring (20), and in which first and second flow paths passing therethrough are formed; a lower cam (40) that closely contacts a front end of the oil damper (30), and in which a guide groove (41) guided along the guide projection (11) is formed in a side surface and a first cam (45) having an inclined surface is provided at an upper side; an upper cam (50) in which a second cam (55) cam-coupled to the first cam (45) is provided at a lower side, and a fitting protrusion (51) is provided at an upper side; a main O-ring (60) that closely contacts an inner circumferential surface of the housing (10) while coupled to the fitting protrusion (51), and is for preventing the oil filling the housing (10) from leaking to the outside; a hinge shaft (70) non-rotatably coupled to the upper cam (50) and fixed to the other one among the washing machine main body and the washing machine door; and a bush cover (80) supporting the hinge shaft (70) so that the hinge shaft (70) passes therethrough, and allowing the hinge shaft (70) to smoothly rotate while coupled to the inlet of the housing (10).
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Inventors:
BYUN YONG GEUN (KR)
Application Number:
PCT/KR2017/011766
Publication Date:
May 03, 2018
Filing Date:
October 24, 2017
Export Citation:
Assignee:
EPTECH CO LTD (KR)
International Classes:
D06F37/18; D06F37/10; D06F37/28; D06F39/14; F16F9/14
Foreign References:
| KR101267339B1 | 2013-05-24 | |||
| KR200413325Y1 | 2006-04-07 | |||
| KR100853768B1 | 2008-08-22 | |||
| KR20150116342A | 2015-10-15 | |||
| KR101383868B1 | 2014-04-10 |
Attorney, Agent or Firm:
YOON, Chang Il (KR)
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