Drum-brush and a vacuum cleaner having the same
First Claim
1. A drum brush comprising:
- a drum rotation body comprising a plurality of bristle tufts disposed on the circumference thereof;
a bearing holder mounted at an end of the drum rotation body;
a bearing mounted in the bearing holder, the bearing comprising an outer race and an inner race;
a shaft inserted in the inner race of the bearing;
an end-cap connected to and supporting an end of the shaft; and
a pressing ring interposed between the bearing holder and the bearing.
1 Assignment
0 Petitions
Accused Products
Abstract
A drum brush having a drum rotation body, a pair of bearing holders, a pair of bearings, a shaft, a pair of end-caps and pressing rings, includes bristle tufts, and the pair of bearing holders are provided to be connected to or integrally formed with both ends of the drum rotation body. A pair of bearings, each having an inner race and an outer race, are connected to each of the bearing holders. The shaft penetrates each of the inner races of the bearings and is connected to the end-cap at either end. The pressing ring is interposed between each bearing holder and each bearing to prevent rotation of the outer race. Accordingly, when the drum rotation body rotates, the bearing holder is not damaged by frictional contact with the bearing.
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Citations
18 Claims
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1. A drum brush comprising:
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a drum rotation body comprising a plurality of bristle tufts disposed on the circumference thereof;
a bearing holder mounted at an end of the drum rotation body;
a bearing mounted in the bearing holder, the bearing comprising an outer race and an inner race;
a shaft inserted in the inner race of the bearing;
an end-cap connected to and supporting an end of the shaft; and
a pressing ring interposed between the bearing holder and the bearing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vacuum cleaner comprising a cleaner body having a vacuum generating device for generating a suction force, and a dust collection chamber for collecting dust, a suction port body having a suction port connected to the dust collection chamber, and a drum brush rotatably mounted to the suction port body, the drum brush comprising:
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a drum rotation body having a plurality of bristle tufts disposed on the circumference thereof;
a bearing holder mounted at an end of the drum rotation body;
a bearing mounted in the bearing holder, the bearing having an outer race and an inner race;
a shaft inserted in the inner race of the bearing;
an end-cap connected to and supporting an end of the shaft, and being connected to the suction port body; and
a pressing ring interposed between the bearing holder and the bearing. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification