Cleaning appliance
First Claim
1. A cleaning appliance, comprising:
- a main body having front and rear portions and a predetermined center of gravity, a hose being releasably attached to the front portion of the main body, and a roller structure arranged to allow the main body to travel across a floor surface, the rear portion being spaced from the floor surface in normal use and having a wheel arranged so that, in use, if a user pulls on the hose so as to tilt the main body and bring the rear portion towards the floor surface, the wheel of the rear portion contacts the floor surface, the size and arrangement of the wheel relative to the main body being such that, when the user ceases to pull on the hose, the center of gravity of the main body acts to return the main body to its normal position with the rear portion spaced from the floor surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A cleaning appliance vacuum cleaner includes a main body having a rear portion and a roller structure such as side wheels arranged to allow the main body to travel across a floor surface. In normal use, the rear portion is spaced from the floor surface. The rear portion carries a wheel arranged so that, if the main body is tilted so that the rear portion is brought towards the floor, the wheel contacts the floor surface. Thus, the cleaner may be used in a tipped-back position without causing damage to the floor surface as the cleaner is dragged along by the user by a hose attached to the main body. The size and position of the wheel is determined so that, when the cleaner is tipped back, the center of gravity of the main body acts to return the main body to an upright position.
67 Citations
14 Claims
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1. A cleaning appliance, comprising:
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a main body having front and rear portions and a predetermined center of gravity, a hose being releasably attached to the front portion of the main body, and a roller structure arranged to allow the main body to travel across a floor surface, the rear portion being spaced from the floor surface in normal use and having a wheel arranged so that, in use, if a user pulls on the hose so as to tilt the main body and bring the rear portion towards the floor surface, the wheel of the rear portion contacts the floor surface, the size and arrangement of the wheel relative to the main body being such that, when the user ceases to pull on the hose, the center of gravity of the main body acts to return the main body to its normal position with the rear portion spaced from the floor surface. - View Dependent Claims (2, 3, 4, 5, 6, 11, 12, 13)
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7-8. -8. (canceled)
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10. A cylinder type vacuum cleaner, comprising:
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a main body having front and rear portions and a predetermined center of gravity, a hose releasably attached to the front portion of the main body, and a roller structure arranged to allow the main body to travel across a floor surface, the rear portion being spaced from the floor surface in normal use and having a wheel arranged so that, in use, if a user pulls on the hose so as to tilt the main body and bring the rear portion towards the floor surface, the wheel of the rear portion contacts the floor surface, the size and arrangement of the wheel relative to the main body being such that, when the user ceases to pull on the hose, the center of gravity of the main body acts to return the main body to its normal position with the rear portion spaced from the floor surface. - View Dependent Claims (9, 14)
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Specification