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US 10,648,117 B2Granted
Laundry treating apparatus
AssigneeLG Electronics Inc.
InventorsKiyong An, Minho Park, Kihoon Choi
Life of this patent
Estimating the term…
Abstract
A laundry treating apparatus is provided. The laundry treating apparatus includes a cabinet, a drum accommodated in the cabinet, a tub accommodating the drum, and a dynamic absorber provided to absorb oscillation of the cabinet. The dynamic absorber includes a support plate coupled to the cabinet, a first moving mass movably provided on the support plate to absorb oscillation transmitted to the cabinet, and a second moving mass movably provided on the support plate to absorb oscillation transmitted to the cabinet. To absorb the oscillation, a time point at which the second moving mass starts relative motion with respect to the support plate is different from that at which the first moving mass starts relative motion with respect to the support plate.
Claims22
A laundry treating apparatus comprising:
- a cabinet having an opening on a front surface thereof;
- a drum accommodated in the cabinet such that the drum has a rotational axis between the front surface and a rear surface of the cabinet;
- a tub accommodating the drum;
- and
- a vibration dampener provided in the cabinet, wherein the vibration dampener includes:
- a support plate coupled to the cabinet;
- a first mass horizontally placed on a first region of the support plate, a width of the first mass in a first horizontal direction extending between the front surface and the rear surface of the cabinet corresponding to a width of the first region in the first horizontal direction, and a length of the first mass in a second horizontal direction that is orthogonal to the first horizontal direction being smaller than a length of the first region in the second horizontal direction such that the first mass moves the second horizontal direction in the first region of the support plate when the cabinet is vibrated to dampen first oscillations of the cabinet;
- and
- a second mass horizontally placed on a second region of the support plate, a width of the second mass in the first horizontal direction corresponding to a width of the second region in the first horizontal direction, and a length of the second mass in the second horizontal direction being smaller than a length of the second region in the second horizontal direction such that the second mass moves in the second horizontal direction when the cabinet is vibrated to dampen second oscillations of the cabinet,
- wherein the first mass has a mass greater than that of the second mass,
- wherein, the first mass is supported by a first support to move relative to the support plate during a first range of rotational speeds of the drum, and the second mass is supported by a second support that is separate from the first support to move relative to the support plate during a second range of rotational speeds of the drum, and
- wherein the first range of rotational speeds of the drum are faster than the second range of rotational speeds of the drum.
9 more elements
A laundry treating apparatus comprising:
- a cabinet having an opening on a front surface thereof;
- a drum accommodated in the cabinet such that the drum has a rotational axis between the front surface and a rear surface of the cabinet;
- a tub accommodating the drum;
- and
- a vibration dampener provided in the cabinet, wherein the vibration dampener includes:
- a support plate coupled to the cabinet;
- a first mass horizontally placed on a first region of the support plate, a length of the first mass in first horizontal direction between the front surface and the rear surfaces of the cabinet corresponding to a length of the first region in the first horizontal direction, and a width of the first mass in a second horizontal direction that intersect the first horizontal direction being smaller than a width of the first region in the second horizontal direction such that the first mass moves in the second direction in the first region of the support plate when the cabinet is vibrated to dampen continuous oscillation, the continuous oscillation being generated when the drum rotates in a first range of rotational speeds;
- and
- a second mass horizontally placed on a second region of the support plate, a length of the second mass in the first horizontal direction corresponding to a length of the second region in the first horizontal direction, and a width of the second mass in the second direction being smaller than a width of the second region in the second direction such that the second mass moves in the second direction when the cabinet is vibrated to dampen transient oscillation, the transient oscillation being generated when the drum rotates in a second range of rotational speeds that are slower than the first range of rotational speeds,
- wherein the first mass has a mass greater than a mass of the second mass,
- wherein the first mass is movably supported by a roller or a ball bearing which is provided between the first mass and the support plate, and
- wherein the second mass is movably supported by at least one slider plate which is provided between the second mass and the support plate, to apply a friction force between the second mass and the support plate.
9 more elements
Dependencies are inferred from the claim text.