Vibration damper and washing machine including the same
AssigneeSamsung Electronics Co., Ltd.
InventorsGyu-sung Na, Min-sung Kim, Sung Han, Jeong-hoon Kang
Life of this patent
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Abstract
A vibration damper and a washing machine including the same are disclosed. The vibration damper includes a tappet, a supporting rod slidably coupled to the tappet, a friction unit disposed inside the tappet and configured to rub the supporting rod, and a cap coupled to one end of the tappet and including a plurality of supporting blocks. The plurality of supporting blocks support an outer circumference of the supporting rod with non-uniform bearing power.
Claims19
A vibration damper that reduces vibration of a washing machine, the vibration damper comprising:
- a tappet;
- a supporting rod slidably coupled to the tappet;
- a friction unit disposed inside the tappet and configured to rub the supporting rod;
- and
- a cap coupled to one end of the tappet and including:
- a plurality of supporting blocks arranged along a circumferential direction of the supporting rod and configured to support the supporting rod, and
- a plurality of lower gap projections, each positioned between each supporting block of the plurality of supporting blocks,
- wherein the plurality of supporting blocks include a first pair of supporting blocks symmetrically disposed facing each other, and a second pair of supporting blocks symmetrically disposed facing each other, and
- wherein a first distance between the first pair of supporting blocks is shorter than a second distance between the second pair of supporting blocks.
A vibration damper comprising:
- a tappet;
- a supporting rod slidably coupled to the tappet;
- a friction unit configured to rub the supporting rod inside the tappet through a movement of the tappet;
- and
- a cap coupled to one end of the tappet and the supporting rod passes therethrough,
- wherein the cap includes:
- a plurality of supporting blocks arranged along a circumferential direction of the supporting rod and configured to support the supporting rod, and
- a plurality of lower gap projections, each positioned between each supporting block of the plurality of supporting blocks,
- wherein the plurality of supporting blocks include a first pair of supporting blocks symmetrically disposed facing each other, and a second pair of supporting blocks symmetrically disposed facing each other, and
- wherein a first distance between the first pair of supporting blocks is shorter than a second distance between the second pair of supporting blocks.
A washing machine comprising:
- a washing machine main body;
- a drum installed inside the washing machine main body;
- a tub configured to rotatably support the drum;
- and
- a vibration damper configured to support the tub,
- wherein the vibration damper includes:
- a tappet;
- a supporting rod slidably coupled to the tappet;
- a friction unit configured to rub the supporting rod inside the tappet through a movement of the tappet;
- and
- a cap coupled to one end of the tappet and the supporting rod passes therethrough, wherein the cap includes:
- a plurality of supporting blocks arranged along a circumferential direction of the supporting rod and configured to support the supporting rod, and
- a plurality of lower gap projections, each positioned between each supporting block of the plurality of supporting blocks,
- wherein the plurality of supporting blocks includes a first pair of supporting blocks symmetrically disposed facing each other, and a second pair of supporting blocks symmetrically disposed facing each other, and
- wherein a first distance between the first pair of supporting blocks is shorter than a second distance between the second pair of supporting blocks.
Dependencies are inferred from the claim text.