发明名称 CANISTER VACUUM CLEANER WITH STAIR HUGGING SWIVEL WHEEL ASSEMBLY
摘要 A canister vacuum cleaner has a canister assembly and a stair hugging swivel wheel assembly. The stair hugging swivel wheel assembly pivotally connects to the canister assembly and has both a pendulum and a wheel rotatably mounted to a housing thereof. During use, the pendulum projects from the housing under the influence of gravity to inhibit or otherwise prevent the stair hugging swivel wheel assembly from pivoting whenever the canister assembly becomes oriented in an inclined position, such as when placed on a stairway. Preferably, the pendulum mates with a recess in the canister assembly co-located with a circular track in which the stair hugging swivel wheel assembly pivots.
申请公布号 CA2472742(A1) 申请公布日期 2005.01.24
申请号 CA20042472742 申请日期 2004.06.30
申请人 MATSUSHITA ELECTRIC CORPORATION OF AMERICA 发明人 MATTINGLY, LEON A.;CROUCH, JAMES T.
分类号 A47L5/36;A47L9/00;A47L9/16;(IPC1-7):A47L5/36 主分类号 A47L5/36
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