US 9,809,919 B2
Laundry treatment apparatus
Insik Yu, Seoul (KR); Youngjun Kim, Seoul (KR); and Youngjong Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Jul. 22, 2014, as Appl. No. 14/337,777.
Claims priority of application No. 10-2013-0086225 (KR), filed on Jul. 22, 2013; and application No. 10-2013-0086301 (KR), filed on Jul. 22, 2013.
Prior Publication US 2015/0020550 A1, Jan. 22, 2015
This patent is subject to a terminal disclaimer.
Int. Cl. D06F 37/24 (2006.01); D06F 23/04 (2006.01)
CPC D06F 37/24 (2013.01) [D06F 23/04 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A laundry treatment apparatus, comprising:
a casing;
an outer tub suspended in the casing;
a pair of supporting rods respectively coupling opposite corners of the casing with a lower part of the outer tub; and
a pair of horizontal vibration buffering devices arranged to form opposite angles relative each other in the casing, the horizontal vibration buffering devices each coupling the supporting rod and each having a portion coupled with the outer tub to be displaced relative a portion coupled with the supporting rod as the outer tub vibrates,
wherein the pair of horizontal vibration buffering devices each provide an attenuation force according to the displacement, and
wherein, for each horizontal vibration buffering device, a virtual line from the portion coupled with the outer tub to the portion coupled with the supporting rod forms an acute angle with respect to a tangent of a circumference of the outer tub in a stationary state, at a position where the horizontal vibration buffering devices is connected,
wherein the portion coupled with the outer tub is rotatable about a substantially vertical axis.