Cyclonic vacuum cleaner

An electric vacuum cleaner comprising:

• a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a cyclone dust collector arranged in the suction air passage for separating dust from the suction air flow by turning the suction air flow that flows into the cyclone dust collector into a whirling air flow,
• the cyclone dust collector is provided with a removable exhaust tube that permits the suction air flow to flow to a downstream side of the suction air passage,
• the exhaust tube has an outlet formed in a peripheral surface thereof, and the outlet is fitted with a filter for removing dust,
• cleaning means for cleaning the filter and capable to be operated manually, and
• a cleaning cup that is fitted around the exhaust tube to prevent dust removed from the filter from being scattered when the filter is cleaned by the cleaning means.

An electric vacuum cleaner comprising:

• a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a cyclone dust collector arranged in the suction air passage for separating dust from the suction air flow by turning the suction air flow that flows into the cyclone dust collector into a whirling air flow,
• the cyclone dust collector is provided with a removable exhaust tube that permits the suction air flow to flow to a downstream side of the suction air passage,
• the exhaust tube has an outlet formed in a peripheral surface thereof, and the outlet is fitted with a filter for removing dust,
• cleaning means for cleaning the filter and capable to be operated manually, and
• a movable member coupled to the cleaning means and operated manually;
• and
• loading means for keeping the movable member pressed in a predetermined direction.

An electric vacuum cleaner comprising:

• a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a cyclone dust collector arranged in the suction air passage for separating dust from the suction air flow by turning the suction air flow that flows into the cyclone dust collector into a whirling air flow,
• the cyclone dust collector is provided with a dust collection chamber for collecting separated dust, and
• the dust collection chamber is divided by a first compartment close to where the suction air flow enters the dust collection chamber and a second compartment farther from where the suction air flow enters the dust collection chamber with a partition wall having an opening and arranged along a direction in which the suction air flow whirls around,
• wherein the opening of the partition wall has a slope portion formed so as to incline toward the second compartment the partition wall has a projection formed at substantially a center of a side thereof facing the second compartment.

An electric vacuum cleaner comprising:

• a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a separator arranged in the suction air passage for separating dust from the suction air flow, further comprising:
• a detachable dust collection chamber that communicates with the separator and in which separated dust is collected;
• a filter through which the suction air flow from the separator passes to flow to a downstream side of the suction air passage;
• and
• cleaning means that cleans the filter in a manner interlocked with movement of the dust collection chamber as the dust collection chamber is attached and detached from a suction air guide.

An electric vacuum cleaner comprising a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a separator arranged in the suction air passage for separating dust from the suction air flow, further comprising:

• the separator being a detachable dust collection chamber in which the separated dust is collected;
• an exhaust tube that has an outlet, fitted with a filter, formed in a peripheral surface thereof, that is inserted into the dust collection chamber through an opening formed in a wall of the dust collection chamber in such a way that the outlet is located inside the dust collection chamber, and that permits the suction air flow from the dust collection chamber to flow through the outlet to a downstream side of the suction air passage;
• and
• cleaning means provided at a rim of the opening of the dust collection chamber for cleaning the filter.

An electric vacuum cleaner comprising a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a separator arranged in the suction air passage for separating dust from the suction air flow, further comprising:

• a detachable dust collection chamber that functions as the separator and in which the separated dust is collected;
• an exhaust tube that has an outlet, fitted with a filter, formed in a peripheral surface thereof, that is inserted into the dust collection chamber through an opening formed in a wall of the dust collection chamber in such a way that the outlet is located inside the dust collection chamber, and that permits the suction air flow from the dust collection chamber to flow through the outlet to a downstream side of the suction air passage,
• cleaning means provided at a rim of the opening of the dust collection chamber for cleaning the filter,
• wherein the exhaust tube is fixed in the suction air passage, the dust collection chamber is attached and detached from the vacuum cleaner by being moved along an axis of the exhaust tube, and the cleaning means cleans the filter as the dust collection chamber is attached and detached.

An electric vacuum cleaner comprising a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a separator arranged in the suction air passage for separating dust from the suction air flow, further comprising:

• a detachable dust collection chamber that functions as the separator and in which the separated dust is collected;
• an exhaust tube that has an outlet, fitted with a filter, formed in a peripheral surface thereof, that is inserted into the dust collection chamber through an opening formed in a wall of the dust collection chamber in such a N way that the outlet is located inside the dust collection chamber, and that permits the suction air flow from the dust collection chamber to flow through the outlet to a downstream side of the suction air passage;
• cleaning means provided at a rim of the opening of the dust collection chamber for cleaning the filter,
• wherein the exhaust tube is freely detachable from the suction air passage, and is fitted to the dust collection chamber through engagement with a first engagement means.

An electric vacuum cleaner comprising a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a cyclone dust collector arranged in the suction air passage for separating dust from the suction air flow by turning the suction air flow that flows into the cyclone dust collector into a whirling air flow,

• wherein the cyclone dust collector comprises:
• an exhaust tube having an outlet, fitted with a filter, formed in a peripheral surface thereof so as to permit the suction air flow to flow through the outlet to a downstream side of the suction air passage;
• and
• cleaning means operatively connected to the vacuum cleaner that cleans the filter by using the force of the suction air flow that flows out of the exhaust tube.

An electric vacuum cleaner comprising a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a cyclone dust collector arranged in the suction air passage for separating dust from the suction air flow by turning the suction air flow that flows into the cyclone dust collector into a whirling air flow,

• wherein the cyclone dust collector comprises:
• an exhaust tube having an outlet, fitted with a filter, formed in a peripheral surface thereof so as to permit the suction air flow to flow through the outlet to a downstream side of the suction air passage;
• and
• cleaning means operatively connected to the vacuum cleaner that cleans the filter by using the force of the suction air flow that is flowing out of the exhaust tube, and
• a work chamber that is located above the cyclone dust collector, that communicates with the cyclone dust collector through the exhaust tube, and that communicates with the downstream side of the suction air passage.

An electric vacuum cleaner comprising:

• a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric air blower, and a separator arranged in the suction air passage for separating dust from the suction air flow, further comprising:
• a dust collection chamber that communicates with the separator and in which separated dust is collected;
• an exhaust tube having an outlet, fitted with a filter, formed in a peripheral surface thereof so as to permit the suction air flow to flow from the separator through the outlet to a downstream side of the suction air passage;
• and
• a cleaning member effective to move along the longitudinal axis of the exhaust tube while keeping contact with the filter and thereby cleans the filter.

An electric vacuum cleaner comprising:

• a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a separator arranged in the suction air passage for separating dust from the suction air flow, further comprising:
• a dust collection chamber that communicates with the separator and in which separated dust is collected;
• an exhaust tube having an outlet, fitted with a filter, formed in a peripheral surface thereof so as to permit the suction air flow to flow from the separator through the outlet to a downstream side of the suction air passage;
• a cleaning member that moves while keeping contact with the filter and thereby cleans the filter, and
• a loading member for keeping the cleaning member pressed along the axis of the exhaust tube,
• wherein the dust collection chamber is detachable from the separator, and is attached thereto by moving the cleaning member against a force with which the cleaning member is kept pressed by the loading member.

An electric vacuum cleaner comprising:

• a nozzle unit having a nozzle, an electric blower for producing a suction air flow, a suction air passage running between the nozzle unit and the electric blower, and a separator arranged in the suction air passage for separating dust from the suction air flow, further comprising:
• a dust collection chamber that communicates with the separator and in which separated dust is collected;
• an exhaust tube having an outlet, fitted with a filter, formed in a peripheral surface thereof so as to permit the suction air flow to flow from the separator through the outlet to a downstream side of the suction air passage;
• a cleaning member that moves while keeping contact with the filter and thereby cleans the filter, and
• an operation member arranged outside the dust collection chamber effective to be manually operated;
• and
• a coupling member for coupling the operation member and the cleaning chamber together.