A shock absorber for a washing machine and a washing machine having the same are disclosed. The shock absorber includes: a shock absorber sleeve, and the shock absorber sleeve defines an accommodation cavity therein; a shock absorber rod, movably connected to the shock absorber sleeve; an elastic member provided on the shock absorber rod and/or the shock absorber sleeve; a first damping member fitted over the shock absorber rod and mounted on the shock absorber sleeve; and a second damping member mounted on the shock absorber rod and accommodated in the accommodation cavity. The first damping member and the second damping member generate damping when the shock absorber rod moves relative to the shock absorber sleeve. The shock absorber for the washing machine has a simple structure and favorable shock absorbing effects, and occupies little space.

A shock absorber includes a seal member that is slidably in contact with a piston rod, a friction member that is formed of an annular elastic rubber section slidably in contact with the piston rod and an annular base section to which the elastic rubber section is fixed, and an communication path that reduces pressure difference between both sides of the friction member in axial direction. The elastic rubber section is provided with a minimum inner diameter section, a first enlarged diameter section, and a second enlarged diameter section. A force is applied to the piston rod by the friction member such that movement in an outward direction of the cylinder becomes difficult and movement in an inward direction of the cylinder becomes easy.

There are improved a vibration absorption characteristic and an impact absorption characteristic. In a suspension mechanism 1 of the present invention, first and second dampers (150, 160) are suspended in parallel between an upper frame (120) and a lower frame (110) with mounting angles different from each other. For this reason, the smaller mounting angle the damper has, the smaller a vertical component of damping force becomes, and the damping force which acts on the upper frame (120) and the lower frame (110) which move up and down relatively is moderate in effectiveness as compared with a case of disposing all the dampers at the same mounting angle. Thus, a sense of incongruity in which strong damping force acts abruptly is suppressed and the vibration absorption characteristic and the impact absorption characteristic are improved, which leads to improvement in ride comfort.

A damping device for a washing machine and a washing machine are provided. The damping device for a washing machine comprises an upper boom, a damping spring mechanism and a lower boom, wherein an upper end of the upper boom is installed on a cabinet of the washing machine, a lower end of the lower boom is installed on an outer tub of the washing machine, the damping spring mechanism is installed between the upper boom and the lower boom, and the upper boom and/or the lower boom are/is elastically stretched under the drive of the damping spring mechanism.

A damping device for a washing machine and a washing machine are provided. The damping device for a washing machine comprises an upper boom, a damping spring mechanism and a lower boom, wherein an upper end of the upper boom is installed on a cabinet of the washing machine, a lower end of the lower boom is installed on an outer tub of the washing machine, the damping spring mechanism is installed between the upper boom and the lower boom, and the upper boom and/or the lower boom are/is elastically stretched under the drive of the damping spring mechanism.

The present disclosure provides for a force breaker assembly. The assembly includes a housing having a first channel, a body within the housing and including an engagement surface. A second channel is formed in the body. A spring is positioned adjacent the body. A snap ring is positioned within the housing and about the body. When a load is applied to the engagement surface that is below a preset limit, the ring remains engaged within the first and second channel, retaining the body in an extended position. When a load is applied to the engagement surface that is at or above the preset limit, the ring is expanded out of the second channel and into the first channel or is compressed out of the first channel and into the second channel, such that the body is forced into a depressed position.

The present disclosure provides for a force breaker assembly. The assembly includes a housing having a first channel, a body within the housing and including an engagement surface. A second channel is formed in the body. A spring is positioned adjacent the body. A snap ring is positioned within the housing and about the body. When a load is applied to the engagement surface that is below a preset limit, the ring remains engaged within the first and second channel, retaining the body in an extended position. When a load is applied to the engagement surface that is at or above the preset limit, the ring is expanded out of the second channel and into the first channel or is compressed out of the first channel and into the second channel, such that the body is forced into a depressed position.

A washing machine includes a cabinet, a tub disposed inside the cabinet, and a rotating tub rotatably disposed inside the tub. A suspension device connects the tub to the cabinet such that the tub is supported by the cabinet, and a vibration reduction apparatus is coupled between the tub and the suspension device to reduce vibration of the tub according to rotation of the rotating tub. The vibration reduction apparatus includes a first rod and a second rod rotatably coupled to the first rod.

A damper includes: a line-shaped member wound around an outer peripheral surface of a piston which makes a relative motion in a cylinder; and a viscous fluid made to adhere to the line-shaped member and exhibiting viscous damping force. The relative motion of the cylinder and the piston produces tension, and in the line-shaped member, as an amplitude is smaller, its contiguously wound portions each try to deform to twist along a circumferential direction of the line-shaped member itself, and as the amplitude is larger, the contiguously wound portions try to deform as a unit. When the amplitude is small, frictional resistance decreases, resulting in smooth motion of the piston, and appropriate damping force is obtained due to the viscous damping force of the viscous fluid. When the amplitude is large, as a result of the increased tendency that the contiguously wound portions of the line-shaped member try to deform as a unit, friction damping force acts relatively greatly.

A damper includes: a line-shaped member wound around an outer peripheral surface of a piston which makes a relative motion in a cylinder; and a viscous fluid made to adhere to the line-shaped member and exhibiting viscous damping force. The relative motion of the cylinder and the piston produces tension, and in the line-shaped member, as an amplitude is smaller, its contiguously wound portions each try to deform to twist along a circumferential direction of the line-shaped member itself, and as the amplitude is larger, the contiguously wound portions try to deform as a unit. When the amplitude is small, frictional resistance decreases, resulting in smooth motion of the piston, and appropriate damping force is obtained due to the viscous damping force of the viscous fluid. When the amplitude is large, as a result of the increased tendency that the contiguously wound portions of the line-shaped member try to deform as a unit, friction damping force acts relatively greatly.