Surface cleaning apparatus

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 an inclined 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 and while in the floor cleaning position is rotatable about a longitudinal axis that is generally orthogonal to the pivot axis, the upper section is moveable into the storage position when the upper section is in a particular orientation;
• 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;
• d. an anti-rotation locking comprising a pair of spaced apart engagement members and complimentary locking members, the engagement members are being mounted to the one of the upper section and the surface cleaning head and movable between an engaged storage position, in which the engagement members engage the locking members whereby rotation of the upper section about the longitudinal axis is inhibited, and a disengaged position, automatically created by a rearward pivot of the upper section about the pivot axis into the floor cleaning position from the storage position, in which the engagement members are spaced apart from the locking members whereby rotation of the upper section about the longitudinal axis is permitted, a compressible biasing member is coupled to the engagement members and configured to biased the engagement members to a the disengaged position, and the engagement members are automatically moved to the engaged position when the upper section is fully pivoted upward about the pivot axis into the storage position;
• and,
• e. an alignment mechanism comprising a first cooperating alignment member associated with the surface cleaning head and a second cooperating alignment member associated with the upper section, the first and second cooperating alignment members guiding the upper section into rotational alignment about the longitudinal axis to engage the engagement members and complimentary locking members when the upper section is moved into the storage position.