公开(公告)号：US20250137188A1

公开(公告)日：2025-05-01

申请号：US18932038

申请日：2024-10-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yoshinari SHIMADA ,  Akihiro HOSOKAWA ,  Yoshiyuki NISHIOKA ,  Hogyo HOSHIYAMA ,  Yuichi SUZUKI ,  Yuki ONO ,  Wonjae HAN ,  Hyungjin CHOE ,  Sejun LEE

IPC: D06F37/24 ,  D06F23/04 ,  D06F37/26

Abstract: A washing machine includes a washing tub, a dewatering tub arranged rotatably in the washing tub, a housing to accommodate the washing tub, a suspension to suspend the washing tub from the housing substantially in a vertical direction, and a damper to connect the washing tub to the housing. The damper includes a translational damper to apply a damping force in a direction of translation, and a first rotational damper and a second rotational damper respectively connected to opposite ends of the translational damper while securing a degree of freedom substantially in the vertical direction of the translational damper, and to respectively apply the damping force in a rotating direction. The first rotational damper is arranged on a lower portion of the housing to be rotatable about a first rotary axis substantially in the vertical direction. The second rotational damper is arranged on a bottom of the washing tub to be rotatable about a second rotary axis substantially in the vertical direction.

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

IPC: D06F37/20 ,  D06F37/04 ,  F16H55/36 ,  F16H57/00

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.

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

IPC: D06F37/22 ,  F16H7/02 ,  F16H55/36

CPC classification number: D06F37/22 ,  D06F37/04 ,  D06F37/36 ,  F16H7/02 ,  F16H55/36 ,  F16H2055/366

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.