| 主权项 |
1. An upright surface cleaning apparatus having a front, a rear and opposed lateral sides and comprising:
a. a surface cleaning head having a dirt inlet; b. an upper section pivotally coupled to the surface cleaning head and pivotable about a pivot axis that is generally horizontally extending when the surface cleaning head is placed on a floor between a floor cleaning position, in which the upright surface cleaning apparatus is useable for cleaning a floor, and a storage position, in which the upper section is maintained in a generally vertical position relative to the floor without falling, and the upper section is also rotatably coupled to the surface cleaning head so as to be rotatable about a longitudinal axis that is generally orthogonal to the pivot axis, the rotational coupling member comprising a longitudinally extending member defining the longitudinal axis, and the longitudinal axis extends through a portion of an air flow path; c. an air flow path extending from the dirt inlet to a clean air outlet with a suction motor and a treatment member provided in the air flow path; and, d. an anti-rotation locking mechanism comprising a first abutment member and a second abutment member spaced apart from the first abutment member, the first and second abutment members each extending laterally outwardly from one of the surface cleaning head and the upper section, the other of the surface cleaning head and the upper section comprising a stop member having a first stop face and a second stop face spaced apart from the first stop face, when the upper section is in the storage position the first abutment member engages the first stop face and the second abutment member engages the second stop face, whereby rotation of the upper section about the longitudinal axis is inhibited and, when the upper section is pivoted rearwardly about the pivot axis into the floor cleaning position from the storage position, the first and second abutment members automatically disengage from the first and second stop faces whereby rotation of the upper section about the longitudinal axis is permitted and in order for the upper section to be in the storage position the first and second stop faces engage with their respective first and second stop faces at substantially the same time, whereby the upper section is rotationally aligned about the longitudinal axis. |
