Patent ID: 8904595
Filing Date: 2014-12-09
Classification: A47L

Abstract:
1. A vacuum cleaner suction head comprising: a housing having a fore-aft direction and a transverse direction that is perpendicular to the fore-aft direction; one or more supports connected to the housing to support the housing on a surface to be cleaned for movement in the fore-aft direction; a suction inlet on a lower surface of the housing; a front sealing plate on the lower surface of the housing and extending along a front edge of the suction inlet, the front sealing plate being pivotally mounted to the housing at a first pivot axis extending in the transverse direction and movable relative to the housing between a raised front plate position in which a lower surface of the front sealing plate is relatively close to the housing, and a lowered front plate position in which the lower surface of the front sealing plate is relatively far from the housing, wherein the front sealing plate is movable to rotate about the first pivot axis in a direction towards the suction inlet from the lowered front plate position to the raised front plate position by contact with debris on the surface to be cleaned; and a rear sealing plate on the lower surface of the housing and extending along a rear edge of the suction inlet, the rear sealing plate being movable relative to the housing between a raised rear plate position in which a lower surface of the rear sealing plate is relatively close to the housing, and a lowered rear plate position in which the lower surface of the rear sealing plate is relatively far from the housing, wherein the rear sealing plate is movable from the lowered rear plate position to the raised rear plate position by contact with the debris; and wherein the front sealing plate is mounted in a trailing configuration in which, when the front sealing plate is in the lowered front plate position, the first pivot axis is at the front of the front sealing plate with respect to the fore-aft direction, and a lowermost point on the lower surface of the front sealing plate is located behind the first pivot axis with respect to the fore-aft direction.