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公开(公告)号:US20180347093A1
公开(公告)日:2018-12-06
申请号:US15777513
申请日:2016-11-08
Applicant: Samsung Electronics Co., Ltd.
Inventor: Jung Hee LEE , Takahiro NAKASHIMA , Yoshinari SHIMADA , Kazushi MORI , Jeong Hoon KANG , Min Sung KIM , Dong Ha JUNG , Kwan Woo HONG
CPC classification number: D06F37/30 , D06F37/00 , D06F37/206
Abstract: The washing machine of the present disclosure includes an improved pulley for reducing the noise generated in the pulley. When the shaft is inserted into the shaft insertion hole, at least a part of the shaft is closely contacted with the shaft insertion hole to minimize the tolerance between the shaft and the shaft insertion hole, and the rotation shaft of the pulley and the center axis of the shafts may be made to coincide with each other, so that the noise generated by the rotation of the pulley can be effectively reduced. In addition, the spoke of the pulley includes the curved portion, thereby reducing the friction with the air and effectively reducing noise due to friction with air.
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公开(公告)号:US20180327955A1
公开(公告)日:2018-11-15
申请号:US15775976
申请日:2016-11-11
Applicant: Samsung Electronics Co., Ltd.
Inventor: Yoshinari SHIMADA , Kazushi MORI , Takahiro NAKASHIMA
Abstract: By improving the rigidity of a pulley while suppressing a weight of the pulley from increasing, excessive noises due to resonance can be reduced. A washing machine 1 includes a drum 9 rotatably disposed in the water tub 5. The washing machine 1 has a motor to rotationally drive a pulley 20, which is fixed to the drum 9, via an endless belt 13. The pulley 20 has a plurality of arms 23 radially extend from the boss 22 to support an outer wheel 21. The arm 23 has a variable cross-sectional portion 24 in which a section modulus against bending in an axial direction gradually decreases from the boss 22 to the outer wheel 21.
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