Patent ID: 6243917
Filing Date: 2001-06-12
Classification: A47L

Abstract:
A vacuum cleaner head for cleaning a surface comprising:(a) a casing having a lower surface, a front end, a rear end and an air flow path, the air flow path including a dirty air inlet provided in the lower surface and connectable in fluid communication with a source of suction;(b) a brush rotatably mounted above the dirty air inlet and movably mounted with respect to the dirty air inlet between a lowered position and a raised position, the brush having a longitudinally extending central axis and spaced apart opposed lateral sides;(c) a pivot arm having a first end connected to the brush and a second end pivotally mounted with respect to the casing at a position forward of the central axis the pivot arm extends upwardly at an angle to the horizontal from the second end to the first end, the size of the angle being such that, upon rotation of the brush, a portion of the force produced by the rotation of the brush is transmitted to the casing; and,(d) a biasing member which is positioned to bias the brush to the raised positionwherein upon rotation of the brush a force pivoting the brush towards the dirty air inlet is produced.