Caster for vacuum cleaner and vacuum cleaner having the same
AssigneeLG Electronics Inc.
InventorSung-Guen Kim
Life of this patent
Estimating the term…
Abstract
A caster structure for a vacuum cleaner is provided which allows the main body of the vacuum cleaner to be stably positioned at an incline. The caster structure is rotatably supported on a front portion of a bottom surface of the main body of the vacuum cleaner, and includes a caster body which has a planar rear surface, and a caster roller rotatably installed in the caster body 52. The planar rear surface of the caster body includes a slip-prevention protrusion which extends across the planar rear surface to prevent slippage of the main body of the vacuum cleaner when the main body is positioned at an incline. The caster structure may include a single caster, or a pair of casters positioned side by side on the bottom surface of the main body of the vacuum cleaner.
Claims23
A caster structure for a vacuum cleaner configured to be installed at and rotatably supported on a front portion of a bottom surface of a main body of the vacuum cleaner, comprising:
- at least one caster body which protrudes from a bottom surface of a main body of a vacuum cleaner, comprising a substantially planar rear surface of a predetermined width, wherein a portion of the substantially planar rear surface of the at least one caster body is configured to support and to stabilize the main body of the vacuum cleaner in an inclined position;
- and
- a caster roller rotatably coupled to the at least one caster body.
A vacuum cleaner, comprising:
- a main body;
- a pair of wheels installed at rear portions of the main body configured to enable the main body to travel on a horizontal surface;
- and
- a pair of casters installed at front portions of a bottom surface of the main body, wherein each of the pair of casters comprises:
- a caster body positioned at the bottom surface of the main body, including a planar rear surface of a predetermined width;
- and
- a caster roller rotatably coupled to the caster body, wherein the pair of casters are installed on the bottom surface of the main body such that the planar rear surfaces of their respective caster bodies are aligned along substantially the same plane so as to stabilize an inclined position of the main body when the main body is supported by the casters.
A vacuum cleaner, comprising:
- a main body;
- a pair of rear wheels provided at a rear portion of the main body;
- at least one caster provided at a forward portion of the main body, wherein the at least one caster comprises:
- a caster roller rotatably coupled to a caster body provided at a bottom surface of the main body, wherein the caster body includes a substantially planar rear surface configured to stabilize an inclined position of the main body when the main body is supported by the at least one caster.
Dependencies are inferred from the claim text.