Upright vacuum cleaner

An upright vacuum cleaner for cleaning a surface, the upright vacuum cleaner comprising:

• an upper body having a handle;
• a base unit;
• a carriage configured to move the base unit on the surface, the carriage including a wheel disposed in a rear portion of the base unit;
• a motor-fan unit disposed in the base unit and configured to create a partial vacuum at the surface;
• a tilting joint operable to provide relative tilting between the upper body and the base unit about a pivot axis extending in a horizontal direction when the vacuum cleaner is in a position of use;
• a pivotable carrier member having the wheel disposed thereon, the carrier member having a pivot axle that is spaced apart from a rotatable axle of the wheel;
• and
• a pivoting mechanism disposed on the tilting joint in a vicinity of the carrier member and configured to pivot the carrier member and the wheel during a pivoting movement of the upper body relative to the base unit,
• wherein the pivoting mechanism and the carrier member are configured to cooperate so that a pivoting of the upper body into an upright position results in the wheel being pivoted rearward such that a footprint of the base unit is larger when the upper body is in an upright position than when the upper body is in a pivoted operating position.

An upright vacuum cleaner for cleaning a surface, the upright vacuum cleaner comprising:

• an upper body having a handle;
• a base unit;
• a carriage configured to move the base unit on the surface, the carriage including a wheel disposed in a rear portion of the base unit;
• a motor-fan unit disposed in the base unit and configured to create a partial vacuum at the surface;
• a tilting joint operable to provide relative tilting between the upper body and the base unit about a pivot axis extending in a horizontal direction when the vacuum cleaner is in a position of use;
• a pivotable carrier member having the wheel disposed thereon, the carrier member having a pivot axle that is spaced apart from a rotatable axle of the wheel;
• and
• a pivoting mechanism disposed on the tilting joint in a vicinity of the carrier member and configured to pivot the carrier member and the wheel during a pivoting movement of the upper body relative to the base unit,
• wherein the upper body is configured to assume an upright position and a tilted position with an end position, wherein the wheel is locked when the upper body is in either of the upright position and the end position.